Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/interfaceSupport.hpp @ 2162:ccfcb502af3f
6566340: Restore use of stillborn flag to signify a thread that was stopped before it started
Summary: Restore use of stillborn flag
Reviewed-by: acorn, alanb
author | dholmes |
---|---|
date | Tue, 25 Jan 2011 00:14:21 -0500 |
parents | f95d63e2154a |
children | 3582bf76420e |
rev | line source |
---|---|
0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_INTERFACESUPPORT_HPP |
26 #define SHARE_VM_RUNTIME_INTERFACESUPPORT_HPP | |
27 | |
28 #include "memory/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/safepoint.hpp" | |
34 #include "runtime/vmThread.hpp" | |
35 #include "utilities/globalDefinitions.hpp" | |
36 #include "utilities/preserveException.hpp" | |
37 #include "utilities/top.hpp" | |
38 #ifdef TARGET_OS_FAMILY_linux | |
39 # include "thread_linux.inline.hpp" | |
40 #endif | |
41 #ifdef TARGET_OS_FAMILY_solaris | |
42 # include "thread_solaris.inline.hpp" | |
43 #endif | |
44 #ifdef TARGET_OS_FAMILY_windows | |
45 # include "thread_windows.inline.hpp" | |
46 #endif | |
47 | |
0 | 48 // Wrapper for all entry points to the virtual machine. |
49 // The HandleMarkCleaner is a faster version of HandleMark. | |
50 // It relies on the fact that there is a HandleMark further | |
51 // down the stack (in JavaCalls::call_helper), and just resets | |
52 // to the saved values in that HandleMark. | |
53 | |
54 class HandleMarkCleaner: public StackObj { | |
55 private: | |
56 Thread* _thread; | |
57 public: | |
58 HandleMarkCleaner(Thread* thread) { | |
59 _thread = thread; | |
60 _thread->last_handle_mark()->push(); | |
61 } | |
62 ~HandleMarkCleaner() { | |
63 _thread->last_handle_mark()->pop_and_restore(); | |
64 } | |
65 | |
66 private: | |
67 inline void* operator new(size_t size, void* ptr) { | |
68 return ptr; | |
69 } | |
70 }; | |
71 | |
72 // InterfaceSupport provides functionality used by the __LEAF and __ENTRY | |
73 // macros. These macros are used to guard entry points into the VM and | |
74 // perform checks upon leave of the VM. | |
75 | |
76 | |
77 class InterfaceSupport: AllStatic { | |
78 # ifdef ASSERT | |
79 public: | |
80 static long _scavenge_alot_counter; | |
81 static long _fullgc_alot_counter; | |
82 static long _number_of_calls; | |
83 static long _fullgc_alot_invocation; | |
84 | |
85 // tracing | |
86 static void trace(const char* result_type, const char* header); | |
87 | |
88 // Helper methods used to implement +ScavengeALot and +FullGCALot | |
89 static void check_gc_alot() { if (ScavengeALot || FullGCALot) gc_alot(); } | |
90 static void gc_alot(); | |
91 | |
92 static void walk_stack_from(vframe* start_vf); | |
93 static void walk_stack(); | |
94 | |
95 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
96 static void zap_dead_locals_old(); | |
97 # endif | |
98 | |
99 static void zombieAll(); | |
100 static void deoptimizeAll(); | |
101 static void stress_derived_pointers(); | |
102 static void verify_stack(); | |
103 static void verify_last_frame(); | |
104 # endif | |
105 | |
106 public: | |
107 // OS dependent stuff | |
1972 | 108 #ifdef TARGET_OS_FAMILY_linux |
109 # include "interfaceSupport_linux.hpp" | |
110 #endif | |
111 #ifdef TARGET_OS_FAMILY_solaris | |
112 # include "interfaceSupport_solaris.hpp" | |
113 #endif | |
114 #ifdef TARGET_OS_FAMILY_windows | |
115 # include "interfaceSupport_windows.hpp" | |
116 #endif | |
117 | |
0 | 118 }; |
119 | |
120 | |
121 // Basic class for all thread transition classes. | |
122 | |
123 class ThreadStateTransition : public StackObj { | |
124 protected: | |
125 JavaThread* _thread; | |
126 public: | |
127 ThreadStateTransition(JavaThread *thread) { | |
128 _thread = thread; | |
129 assert(thread != NULL && thread->is_Java_thread(), "must be Java thread"); | |
130 } | |
131 | |
132 // Change threadstate in a manner, so safepoint can detect changes. | |
133 // Time-critical: called on exit from every runtime routine | |
134 static inline void transition(JavaThread *thread, JavaThreadState from, JavaThreadState to) { | |
135 assert(from != _thread_in_Java, "use transition_from_java"); | |
136 assert(from != _thread_in_native, "use transition_from_native"); | |
137 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); | |
138 assert(thread->thread_state() == from, "coming from wrong thread state"); | |
139 // Change to transition state (assumes total store ordering! -Urs) | |
140 thread->set_thread_state((JavaThreadState)(from + 1)); | |
141 | |
142 // Make sure new state is seen by VM thread | |
143 if (os::is_MP()) { | |
144 if (UseMembar) { | |
145 // Force a fence between the write above and read below | |
146 OrderAccess::fence(); | |
147 } else { | |
148 // store to serialize page so VM thread can do pseudo remote membar | |
149 os::write_memory_serialize_page(thread); | |
150 } | |
151 } | |
152 | |
153 if (SafepointSynchronize::do_call_back()) { | |
154 SafepointSynchronize::block(thread); | |
155 } | |
156 thread->set_thread_state(to); | |
157 | |
158 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
159 } | |
160 | |
161 // transition_and_fence must be used on any thread state transition | |
162 // where there might not be a Java call stub on the stack, in | |
163 // particular on Windows where the Structured Exception Handler is | |
164 // set up in the call stub. os::write_memory_serialize_page() can | |
165 // fault and we can't recover from it on Windows without a SEH in | |
166 // place. | |
167 static inline void transition_and_fence(JavaThread *thread, JavaThreadState from, JavaThreadState to) { | |
168 assert(thread->thread_state() == from, "coming from wrong thread state"); | |
169 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); | |
170 // Change to transition state (assumes total store ordering! -Urs) | |
171 thread->set_thread_state((JavaThreadState)(from + 1)); | |
172 | |
173 // Make sure new state is seen by VM thread | |
174 if (os::is_MP()) { | |
175 if (UseMembar) { | |
176 // Force a fence between the write above and read below | |
177 OrderAccess::fence(); | |
178 } else { | |
179 // Must use this rather than serialization page in particular on Windows | |
180 InterfaceSupport::serialize_memory(thread); | |
181 } | |
182 } | |
183 | |
184 if (SafepointSynchronize::do_call_back()) { | |
185 SafepointSynchronize::block(thread); | |
186 } | |
187 thread->set_thread_state(to); | |
188 | |
189 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
190 } | |
191 | |
192 // Same as above, but assumes from = _thread_in_Java. This is simpler, since we | |
193 // never block on entry to the VM. This will break the code, since e.g. preserve arguments | |
194 // have not been setup. | |
195 static inline void transition_from_java(JavaThread *thread, JavaThreadState to) { | |
196 assert(thread->thread_state() == _thread_in_Java, "coming from wrong thread state"); | |
197 thread->set_thread_state(to); | |
198 } | |
199 | |
200 static inline void transition_from_native(JavaThread *thread, JavaThreadState to) { | |
201 assert((to & 1) == 0, "odd numbers are transitions states"); | |
202 assert(thread->thread_state() == _thread_in_native, "coming from wrong thread state"); | |
203 // Change to transition state (assumes total store ordering! -Urs) | |
204 thread->set_thread_state(_thread_in_native_trans); | |
205 | |
206 // Make sure new state is seen by GC thread | |
207 if (os::is_MP()) { | |
208 if (UseMembar) { | |
209 // Force a fence between the write above and read below | |
210 OrderAccess::fence(); | |
211 } else { | |
212 // Must use this rather than serialization page in particular on Windows | |
213 InterfaceSupport::serialize_memory(thread); | |
214 } | |
215 } | |
216 | |
217 // We never install asynchronous exceptions when coming (back) in | |
218 // to the runtime from native code because the runtime is not set | |
219 // up to handle exceptions floating around at arbitrary points. | |
220 if (SafepointSynchronize::do_call_back() || thread->is_suspend_after_native()) { | |
221 JavaThread::check_safepoint_and_suspend_for_native_trans(thread); | |
222 | |
223 // Clear unhandled oops anywhere where we could block, even if we don't. | |
224 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
225 } | |
226 | |
227 thread->set_thread_state(to); | |
228 } | |
229 protected: | |
230 void trans(JavaThreadState from, JavaThreadState to) { transition(_thread, from, to); } | |
231 void trans_from_java(JavaThreadState to) { transition_from_java(_thread, to); } | |
232 void trans_from_native(JavaThreadState to) { transition_from_native(_thread, to); } | |
233 void trans_and_fence(JavaThreadState from, JavaThreadState to) { transition_and_fence(_thread, from, to); } | |
234 }; | |
235 | |
236 | |
237 class ThreadInVMfromJava : public ThreadStateTransition { | |
238 public: | |
239 ThreadInVMfromJava(JavaThread* thread) : ThreadStateTransition(thread) { | |
240 trans_from_java(_thread_in_vm); | |
241 } | |
242 ~ThreadInVMfromJava() { | |
243 trans(_thread_in_vm, _thread_in_Java); | |
244 // Check for pending. async. exceptions or suspends. | |
245 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(); | |
246 } | |
247 }; | |
248 | |
249 | |
250 class ThreadInVMfromUnknown { | |
251 private: | |
252 JavaThread* _thread; | |
253 public: | |
254 ThreadInVMfromUnknown() : _thread(NULL) { | |
255 Thread* t = Thread::current(); | |
256 if (t->is_Java_thread()) { | |
257 JavaThread* t2 = (JavaThread*) t; | |
258 if (t2->thread_state() == _thread_in_native) { | |
259 _thread = t2; | |
260 ThreadStateTransition::transition_from_native(t2, _thread_in_vm); | |
261 // Used to have a HandleMarkCleaner but that is dangerous as | |
262 // it could free a handle in our (indirect, nested) caller. | |
263 // We expect any handles will be short lived and figure we | |
264 // don't need an actual HandleMark. | |
265 } | |
266 } | |
267 } | |
268 ~ThreadInVMfromUnknown() { | |
269 if (_thread) { | |
270 ThreadStateTransition::transition_and_fence(_thread, _thread_in_vm, _thread_in_native); | |
271 } | |
272 } | |
273 }; | |
274 | |
275 | |
276 class ThreadInVMfromNative : public ThreadStateTransition { | |
277 public: | |
278 ThreadInVMfromNative(JavaThread* thread) : ThreadStateTransition(thread) { | |
279 trans_from_native(_thread_in_vm); | |
280 } | |
281 ~ThreadInVMfromNative() { | |
282 trans_and_fence(_thread_in_vm, _thread_in_native); | |
283 } | |
284 }; | |
285 | |
286 | |
287 class ThreadToNativeFromVM : public ThreadStateTransition { | |
288 public: | |
289 ThreadToNativeFromVM(JavaThread *thread) : ThreadStateTransition(thread) { | |
290 // We are leaving the VM at this point and going directly to native code. | |
291 // Block, if we are in the middle of a safepoint synchronization. | |
292 assert(!thread->owns_locks(), "must release all locks when leaving VM"); | |
293 thread->frame_anchor()->make_walkable(thread); | |
294 trans_and_fence(_thread_in_vm, _thread_in_native); | |
295 // Check for pending. async. exceptions or suspends. | |
296 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(false); | |
297 } | |
298 | |
299 ~ThreadToNativeFromVM() { | |
300 trans_from_native(_thread_in_vm); | |
301 // We don't need to clear_walkable because it will happen automagically when we return to java | |
302 } | |
303 }; | |
304 | |
305 | |
306 class ThreadBlockInVM : public ThreadStateTransition { | |
307 public: | |
308 ThreadBlockInVM(JavaThread *thread) | |
309 : ThreadStateTransition(thread) { | |
310 // Once we are blocked vm expects stack to be walkable | |
311 thread->frame_anchor()->make_walkable(thread); | |
312 trans_and_fence(_thread_in_vm, _thread_blocked); | |
313 } | |
314 ~ThreadBlockInVM() { | |
315 trans_and_fence(_thread_blocked, _thread_in_vm); | |
316 // We don't need to clear_walkable because it will happen automagically when we return to java | |
317 } | |
318 }; | |
319 | |
320 | |
321 // This special transition class is only used to prevent asynchronous exceptions | |
322 // from being installed on vm exit in situations where we can't tolerate them. | |
323 // See bugs: 4324348, 4854693, 4998314, 5040492, 5050705. | |
324 class ThreadInVMfromJavaNoAsyncException : public ThreadStateTransition { | |
325 public: | |
326 ThreadInVMfromJavaNoAsyncException(JavaThread* thread) : ThreadStateTransition(thread) { | |
327 trans_from_java(_thread_in_vm); | |
328 } | |
329 ~ThreadInVMfromJavaNoAsyncException() { | |
330 trans(_thread_in_vm, _thread_in_Java); | |
331 // NOTE: We do not check for pending. async. exceptions. | |
332 // If we did and moved the pending async exception over into the | |
333 // pending exception field, we would need to deopt (currently C2 | |
334 // only). However, to do so would require that we transition back | |
335 // to the _thread_in_vm state. Instead we postpone the handling of | |
336 // the async exception. | |
337 | |
338 // Check for pending. suspends only. | |
339 if (_thread->has_special_runtime_exit_condition()) | |
340 _thread->handle_special_runtime_exit_condition(false); | |
341 } | |
342 }; | |
343 | |
344 // Debug class instantiated in JRT_ENTRY and ITR_ENTRY macro. | |
345 // Can be used to verify properties on enter/exit of the VM. | |
346 | |
347 #ifdef ASSERT | |
348 class VMEntryWrapper { | |
349 public: | |
350 VMEntryWrapper() { | |
351 if (VerifyLastFrame) { | |
352 InterfaceSupport::verify_last_frame(); | |
353 } | |
354 } | |
355 | |
356 ~VMEntryWrapper() { | |
357 InterfaceSupport::check_gc_alot(); | |
358 if (WalkStackALot) { | |
359 InterfaceSupport::walk_stack(); | |
360 } | |
361 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
362 if (ZapDeadLocalsOld) { | |
363 InterfaceSupport::zap_dead_locals_old(); | |
364 } | |
365 #endif | |
366 #ifdef COMPILER2 | |
367 // This option is not used by Compiler 1 | |
368 if (StressDerivedPointers) { | |
369 InterfaceSupport::stress_derived_pointers(); | |
370 } | |
371 #endif | |
372 if (DeoptimizeALot || DeoptimizeRandom) { | |
373 InterfaceSupport::deoptimizeAll(); | |
374 } | |
375 if (ZombieALot) { | |
376 InterfaceSupport::zombieAll(); | |
377 } | |
378 // do verification AFTER potential deoptimization | |
379 if (VerifyStack) { | |
380 InterfaceSupport::verify_stack(); | |
381 } | |
382 | |
383 } | |
384 }; | |
385 | |
386 | |
387 class VMNativeEntryWrapper { | |
388 public: | |
389 VMNativeEntryWrapper() { | |
390 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); | |
391 } | |
392 | |
393 ~VMNativeEntryWrapper() { | |
394 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); | |
395 } | |
396 }; | |
397 | |
398 #endif | |
399 | |
400 | |
401 // VM-internal runtime interface support | |
402 | |
403 #ifdef ASSERT | |
404 | |
405 class RuntimeHistogramElement : public HistogramElement { | |
406 public: | |
407 RuntimeHistogramElement(const char* name); | |
408 }; | |
409 | |
410 #define TRACE_CALL(result_type, header) \ | |
411 InterfaceSupport::_number_of_calls++; \ | |
412 if (TraceRuntimeCalls) \ | |
413 InterfaceSupport::trace(#result_type, #header); \ | |
414 if (CountRuntimeCalls) { \ | |
415 static RuntimeHistogramElement* e = new RuntimeHistogramElement(#header); \ | |
416 if (e != NULL) e->increment_count(); \ | |
417 } | |
418 #else | |
419 #define TRACE_CALL(result_type, header) \ | |
420 /* do nothing */ | |
421 #endif | |
422 | |
423 | |
424 // LEAF routines do not lock, GC or throw exceptions | |
425 | |
426 #define __LEAF(result_type, header) \ | |
427 TRACE_CALL(result_type, header) \ | |
428 debug_only(NoHandleMark __hm;) \ | |
429 /* begin of body */ | |
430 | |
431 | |
432 // ENTRY routines may lock, GC and throw exceptions | |
433 | |
434 #define __ENTRY(result_type, header, thread) \ | |
435 TRACE_CALL(result_type, header) \ | |
436 HandleMarkCleaner __hm(thread); \ | |
437 Thread* THREAD = thread; \ | |
438 /* begin of body */ | |
439 | |
440 | |
441 // QUICK_ENTRY routines behave like ENTRY but without a handle mark | |
442 | |
443 #define __QUICK_ENTRY(result_type, header, thread) \ | |
444 TRACE_CALL(result_type, header) \ | |
445 debug_only(NoHandleMark __hm;) \ | |
446 Thread* THREAD = thread; \ | |
447 /* begin of body */ | |
448 | |
449 | |
450 // Definitions for IRT (Interpreter Runtime) | |
451 // (thread is an argument passed in to all these routines) | |
452 | |
453 #define IRT_ENTRY(result_type, header) \ | |
454 result_type header { \ | |
455 ThreadInVMfromJava __tiv(thread); \ | |
456 __ENTRY(result_type, header, thread) \ | |
457 debug_only(VMEntryWrapper __vew;) | |
458 | |
459 | |
460 #define IRT_LEAF(result_type, header) \ | |
461 result_type header { \ | |
462 __LEAF(result_type, header) \ | |
463 debug_only(No_Safepoint_Verifier __nspv(true);) | |
464 | |
465 | |
466 #define IRT_ENTRY_NO_ASYNC(result_type, header) \ | |
467 result_type header { \ | |
468 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
469 __ENTRY(result_type, header, thread) \ | |
470 debug_only(VMEntryWrapper __vew;) | |
471 | |
472 // Another special case for nmethod_entry_point so the nmethod that the | |
473 // interpreter is about to branch to doesn't get flushed before as we | |
474 // branch to it's interpreter_entry_point. Skip stress testing here too. | |
475 // Also we don't allow async exceptions because it is just too painful. | |
476 #define IRT_ENTRY_FOR_NMETHOD(result_type, header) \ | |
477 result_type header { \ | |
478 nmethodLocker _nmlock(nm); \ | |
479 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
480 __ENTRY(result_type, header, thread) | |
481 | |
482 #define IRT_END } | |
483 | |
484 | |
485 // Definitions for JRT (Java (Compiler/Shared) Runtime) | |
486 | |
487 #define JRT_ENTRY(result_type, header) \ | |
488 result_type header { \ | |
489 ThreadInVMfromJava __tiv(thread); \ | |
490 __ENTRY(result_type, header, thread) \ | |
491 debug_only(VMEntryWrapper __vew;) | |
492 | |
493 | |
494 #define JRT_LEAF(result_type, header) \ | |
495 result_type header { \ | |
496 __LEAF(result_type, header) \ | |
497 debug_only(JRT_Leaf_Verifier __jlv;) | |
498 | |
499 | |
500 #define JRT_ENTRY_NO_ASYNC(result_type, header) \ | |
501 result_type header { \ | |
502 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
503 __ENTRY(result_type, header, thread) \ | |
504 debug_only(VMEntryWrapper __vew;) | |
505 | |
506 // Same as JRT Entry but allows for return value after the safepoint | |
507 // to get back into Java from the VM | |
508 #define JRT_BLOCK_ENTRY(result_type, header) \ | |
509 result_type header { \ | |
510 TRACE_CALL(result_type, header) \ | |
511 HandleMarkCleaner __hm(thread); | |
512 | |
513 #define JRT_BLOCK \ | |
514 { \ | |
515 ThreadInVMfromJava __tiv(thread); \ | |
516 Thread* THREAD = thread; \ | |
517 debug_only(VMEntryWrapper __vew;) | |
518 | |
519 #define JRT_BLOCK_END } | |
520 | |
521 #define JRT_END } | |
522 | |
523 // Definitions for JNI | |
524 | |
525 #define JNI_ENTRY(result_type, header) \ | |
526 JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
527 WeakPreserveExceptionMark __wem(thread); | |
528 | |
529 #define JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
530 extern "C" { \ | |
531 result_type JNICALL header { \ | |
532 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
533 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
534 ThreadInVMfromNative __tiv(thread); \ | |
535 debug_only(VMNativeEntryWrapper __vew;) \ | |
536 __ENTRY(result_type, header, thread) | |
537 | |
538 | |
539 // Ensure that the VMNativeEntryWrapper constructor, which can cause | |
540 // a GC, is called outside the NoHandleMark (set via __QUICK_ENTRY). | |
541 #define JNI_QUICK_ENTRY(result_type, header) \ | |
542 extern "C" { \ | |
543 result_type JNICALL header { \ | |
544 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
545 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
546 ThreadInVMfromNative __tiv(thread); \ | |
547 debug_only(VMNativeEntryWrapper __vew;) \ | |
548 __QUICK_ENTRY(result_type, header, thread) | |
549 | |
550 | |
551 #define JNI_LEAF(result_type, header) \ | |
552 extern "C" { \ | |
553 result_type JNICALL header { \ | |
554 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
555 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
556 __LEAF(result_type, header) | |
557 | |
558 | |
559 // Close the routine and the extern "C" | |
560 #define JNI_END } } | |
561 | |
562 | |
563 | |
564 // Definitions for JVM | |
565 | |
566 #define JVM_ENTRY(result_type, header) \ | |
567 extern "C" { \ | |
568 result_type JNICALL header { \ | |
569 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
570 ThreadInVMfromNative __tiv(thread); \ | |
571 debug_only(VMNativeEntryWrapper __vew;) \ | |
572 __ENTRY(result_type, header, thread) | |
573 | |
574 | |
575 #define JVM_ENTRY_NO_ENV(result_type, header) \ | |
576 extern "C" { \ | |
577 result_type JNICALL header { \ | |
578 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); \ | |
579 ThreadInVMfromNative __tiv(thread); \ | |
580 debug_only(VMNativeEntryWrapper __vew;) \ | |
581 __ENTRY(result_type, header, thread) | |
582 | |
583 | |
584 #define JVM_QUICK_ENTRY(result_type, header) \ | |
585 extern "C" { \ | |
586 result_type JNICALL header { \ | |
587 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
588 ThreadInVMfromNative __tiv(thread); \ | |
589 debug_only(VMNativeEntryWrapper __vew;) \ | |
590 __QUICK_ENTRY(result_type, header, thread) | |
591 | |
592 | |
593 #define JVM_LEAF(result_type, header) \ | |
594 extern "C" { \ | |
595 result_type JNICALL header { \ | |
596 VM_Exit::block_if_vm_exited(); \ | |
597 __LEAF(result_type, header) | |
598 | |
599 | |
600 #define JVM_END } } | |
1972 | 601 |
602 #endif // SHARE_VM_RUNTIME_INTERFACESUPPORT_HPP |