Mercurial > hg > truffle
annotate src/share/vm/runtime/interfaceSupport.hpp @ 12034:274ce305e5b9
8020598: ObjectCountEventSender::send needs INCLUDE_TRACE guards when building OpenJDK with INCLUDE_TRACE=0
Reviewed-by: stefank, brutisso, sjohanss
author | ehelin |
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date | Tue, 13 Aug 2013 18:16:19 +0200 |
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children | 9758d9f36299 bdd155477289 |
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 #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" | |
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34 #include "runtime/thread.inline.hpp" |
1972 | 35 #include "runtime/vmThread.hpp" |
36 #include "utilities/globalDefinitions.hpp" | |
37 #include "utilities/preserveException.hpp" | |
38 #include "utilities/top.hpp" | |
39 | |
0 | 40 // Wrapper for all entry points to the virtual machine. |
41 // The HandleMarkCleaner is a faster version of HandleMark. | |
42 // It relies on the fact that there is a HandleMark further | |
43 // down the stack (in JavaCalls::call_helper), and just resets | |
44 // to the saved values in that HandleMark. | |
45 | |
46 class HandleMarkCleaner: public StackObj { | |
47 private: | |
48 Thread* _thread; | |
49 public: | |
50 HandleMarkCleaner(Thread* thread) { | |
51 _thread = thread; | |
52 _thread->last_handle_mark()->push(); | |
53 } | |
54 ~HandleMarkCleaner() { | |
55 _thread->last_handle_mark()->pop_and_restore(); | |
56 } | |
57 | |
58 private: | |
59 inline void* operator new(size_t size, void* ptr) { | |
60 return ptr; | |
61 } | |
62 }; | |
63 | |
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64 // InterfaceSupport provides functionality used by the VM_LEAF_BASE and |
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65 // VM_ENTRY_BASE macros. These macros are used to guard entry points into |
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66 // the VM and perform checks upon leave of the VM. |
0 | 67 |
68 | |
69 class InterfaceSupport: AllStatic { | |
70 # ifdef ASSERT | |
71 public: | |
72 static long _scavenge_alot_counter; | |
73 static long _fullgc_alot_counter; | |
74 static long _number_of_calls; | |
75 static long _fullgc_alot_invocation; | |
76 | |
77 // tracing | |
78 static void trace(const char* result_type, const char* header); | |
79 | |
80 // Helper methods used to implement +ScavengeALot and +FullGCALot | |
81 static void check_gc_alot() { if (ScavengeALot || FullGCALot) gc_alot(); } | |
82 static void gc_alot(); | |
83 | |
84 static void walk_stack_from(vframe* start_vf); | |
85 static void walk_stack(); | |
86 | |
87 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
88 static void zap_dead_locals_old(); | |
89 # endif | |
90 | |
91 static void zombieAll(); | |
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92 static void unlinkSymbols(); |
0 | 93 static void deoptimizeAll(); |
94 static void stress_derived_pointers(); | |
95 static void verify_stack(); | |
96 static void verify_last_frame(); | |
97 # endif | |
98 | |
99 public: | |
100 // OS dependent stuff | |
1972 | 101 #ifdef TARGET_OS_FAMILY_linux |
102 # include "interfaceSupport_linux.hpp" | |
103 #endif | |
104 #ifdef TARGET_OS_FAMILY_solaris | |
105 # include "interfaceSupport_solaris.hpp" | |
106 #endif | |
107 #ifdef TARGET_OS_FAMILY_windows | |
108 # include "interfaceSupport_windows.hpp" | |
109 #endif | |
3960 | 110 #ifdef TARGET_OS_FAMILY_bsd |
111 # include "interfaceSupport_bsd.hpp" | |
112 #endif | |
1972 | 113 |
0 | 114 }; |
115 | |
116 | |
117 // Basic class for all thread transition classes. | |
118 | |
119 class ThreadStateTransition : public StackObj { | |
120 protected: | |
121 JavaThread* _thread; | |
122 public: | |
123 ThreadStateTransition(JavaThread *thread) { | |
124 _thread = thread; | |
125 assert(thread != NULL && thread->is_Java_thread(), "must be Java thread"); | |
126 } | |
127 | |
128 // Change threadstate in a manner, so safepoint can detect changes. | |
129 // Time-critical: called on exit from every runtime routine | |
130 static inline void transition(JavaThread *thread, JavaThreadState from, JavaThreadState to) { | |
131 assert(from != _thread_in_Java, "use transition_from_java"); | |
132 assert(from != _thread_in_native, "use transition_from_native"); | |
133 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); | |
134 assert(thread->thread_state() == from, "coming from wrong thread state"); | |
135 // Change to transition state (assumes total store ordering! -Urs) | |
136 thread->set_thread_state((JavaThreadState)(from + 1)); | |
137 | |
138 // Make sure new state is seen by VM thread | |
139 if (os::is_MP()) { | |
140 if (UseMembar) { | |
141 // Force a fence between the write above and read below | |
142 OrderAccess::fence(); | |
143 } else { | |
144 // store to serialize page so VM thread can do pseudo remote membar | |
145 os::write_memory_serialize_page(thread); | |
146 } | |
147 } | |
148 | |
149 if (SafepointSynchronize::do_call_back()) { | |
150 SafepointSynchronize::block(thread); | |
151 } | |
152 thread->set_thread_state(to); | |
153 | |
154 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
155 } | |
156 | |
157 // transition_and_fence must be used on any thread state transition | |
158 // where there might not be a Java call stub on the stack, in | |
159 // particular on Windows where the Structured Exception Handler is | |
160 // set up in the call stub. os::write_memory_serialize_page() can | |
161 // fault and we can't recover from it on Windows without a SEH in | |
162 // place. | |
163 static inline void transition_and_fence(JavaThread *thread, JavaThreadState from, JavaThreadState to) { | |
164 assert(thread->thread_state() == from, "coming from wrong thread state"); | |
165 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); | |
166 // Change to transition state (assumes total store ordering! -Urs) | |
167 thread->set_thread_state((JavaThreadState)(from + 1)); | |
168 | |
169 // Make sure new state is seen by VM thread | |
170 if (os::is_MP()) { | |
171 if (UseMembar) { | |
172 // Force a fence between the write above and read below | |
173 OrderAccess::fence(); | |
174 } else { | |
175 // Must use this rather than serialization page in particular on Windows | |
176 InterfaceSupport::serialize_memory(thread); | |
177 } | |
178 } | |
179 | |
180 if (SafepointSynchronize::do_call_back()) { | |
181 SafepointSynchronize::block(thread); | |
182 } | |
183 thread->set_thread_state(to); | |
184 | |
185 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
186 } | |
187 | |
188 // Same as above, but assumes from = _thread_in_Java. This is simpler, since we | |
189 // never block on entry to the VM. This will break the code, since e.g. preserve arguments | |
190 // have not been setup. | |
191 static inline void transition_from_java(JavaThread *thread, JavaThreadState to) { | |
192 assert(thread->thread_state() == _thread_in_Java, "coming from wrong thread state"); | |
193 thread->set_thread_state(to); | |
194 } | |
195 | |
196 static inline void transition_from_native(JavaThread *thread, JavaThreadState to) { | |
197 assert((to & 1) == 0, "odd numbers are transitions states"); | |
198 assert(thread->thread_state() == _thread_in_native, "coming from wrong thread state"); | |
199 // Change to transition state (assumes total store ordering! -Urs) | |
200 thread->set_thread_state(_thread_in_native_trans); | |
201 | |
202 // Make sure new state is seen by GC thread | |
203 if (os::is_MP()) { | |
204 if (UseMembar) { | |
205 // Force a fence between the write above and read below | |
206 OrderAccess::fence(); | |
207 } else { | |
208 // Must use this rather than serialization page in particular on Windows | |
209 InterfaceSupport::serialize_memory(thread); | |
210 } | |
211 } | |
212 | |
213 // We never install asynchronous exceptions when coming (back) in | |
214 // to the runtime from native code because the runtime is not set | |
215 // up to handle exceptions floating around at arbitrary points. | |
216 if (SafepointSynchronize::do_call_back() || thread->is_suspend_after_native()) { | |
217 JavaThread::check_safepoint_and_suspend_for_native_trans(thread); | |
218 | |
219 // Clear unhandled oops anywhere where we could block, even if we don't. | |
220 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
221 } | |
222 | |
223 thread->set_thread_state(to); | |
224 } | |
225 protected: | |
226 void trans(JavaThreadState from, JavaThreadState to) { transition(_thread, from, to); } | |
227 void trans_from_java(JavaThreadState to) { transition_from_java(_thread, to); } | |
228 void trans_from_native(JavaThreadState to) { transition_from_native(_thread, to); } | |
229 void trans_and_fence(JavaThreadState from, JavaThreadState to) { transition_and_fence(_thread, from, to); } | |
230 }; | |
231 | |
232 | |
233 class ThreadInVMfromJava : public ThreadStateTransition { | |
234 public: | |
235 ThreadInVMfromJava(JavaThread* thread) : ThreadStateTransition(thread) { | |
236 trans_from_java(_thread_in_vm); | |
237 } | |
238 ~ThreadInVMfromJava() { | |
239 trans(_thread_in_vm, _thread_in_Java); | |
240 // Check for pending. async. exceptions or suspends. | |
241 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(); | |
242 } | |
243 }; | |
244 | |
245 | |
246 class ThreadInVMfromUnknown { | |
247 private: | |
248 JavaThread* _thread; | |
249 public: | |
250 ThreadInVMfromUnknown() : _thread(NULL) { | |
251 Thread* t = Thread::current(); | |
252 if (t->is_Java_thread()) { | |
253 JavaThread* t2 = (JavaThread*) t; | |
254 if (t2->thread_state() == _thread_in_native) { | |
255 _thread = t2; | |
256 ThreadStateTransition::transition_from_native(t2, _thread_in_vm); | |
257 // Used to have a HandleMarkCleaner but that is dangerous as | |
258 // it could free a handle in our (indirect, nested) caller. | |
259 // We expect any handles will be short lived and figure we | |
260 // don't need an actual HandleMark. | |
261 } | |
262 } | |
263 } | |
264 ~ThreadInVMfromUnknown() { | |
265 if (_thread) { | |
266 ThreadStateTransition::transition_and_fence(_thread, _thread_in_vm, _thread_in_native); | |
267 } | |
268 } | |
269 }; | |
270 | |
271 | |
272 class ThreadInVMfromNative : public ThreadStateTransition { | |
273 public: | |
274 ThreadInVMfromNative(JavaThread* thread) : ThreadStateTransition(thread) { | |
275 trans_from_native(_thread_in_vm); | |
276 } | |
277 ~ThreadInVMfromNative() { | |
278 trans_and_fence(_thread_in_vm, _thread_in_native); | |
279 } | |
280 }; | |
281 | |
282 | |
283 class ThreadToNativeFromVM : public ThreadStateTransition { | |
284 public: | |
285 ThreadToNativeFromVM(JavaThread *thread) : ThreadStateTransition(thread) { | |
286 // We are leaving the VM at this point and going directly to native code. | |
287 // Block, if we are in the middle of a safepoint synchronization. | |
288 assert(!thread->owns_locks(), "must release all locks when leaving VM"); | |
289 thread->frame_anchor()->make_walkable(thread); | |
290 trans_and_fence(_thread_in_vm, _thread_in_native); | |
291 // Check for pending. async. exceptions or suspends. | |
292 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(false); | |
293 } | |
294 | |
295 ~ThreadToNativeFromVM() { | |
296 trans_from_native(_thread_in_vm); | |
297 // We don't need to clear_walkable because it will happen automagically when we return to java | |
298 } | |
299 }; | |
300 | |
301 | |
302 class ThreadBlockInVM : public ThreadStateTransition { | |
303 public: | |
304 ThreadBlockInVM(JavaThread *thread) | |
305 : ThreadStateTransition(thread) { | |
306 // Once we are blocked vm expects stack to be walkable | |
307 thread->frame_anchor()->make_walkable(thread); | |
308 trans_and_fence(_thread_in_vm, _thread_blocked); | |
309 } | |
310 ~ThreadBlockInVM() { | |
311 trans_and_fence(_thread_blocked, _thread_in_vm); | |
312 // We don't need to clear_walkable because it will happen automagically when we return to java | |
313 } | |
314 }; | |
315 | |
316 | |
317 // This special transition class is only used to prevent asynchronous exceptions | |
318 // from being installed on vm exit in situations where we can't tolerate them. | |
319 // See bugs: 4324348, 4854693, 4998314, 5040492, 5050705. | |
320 class ThreadInVMfromJavaNoAsyncException : public ThreadStateTransition { | |
321 public: | |
322 ThreadInVMfromJavaNoAsyncException(JavaThread* thread) : ThreadStateTransition(thread) { | |
323 trans_from_java(_thread_in_vm); | |
324 } | |
325 ~ThreadInVMfromJavaNoAsyncException() { | |
326 trans(_thread_in_vm, _thread_in_Java); | |
327 // NOTE: We do not check for pending. async. exceptions. | |
328 // If we did and moved the pending async exception over into the | |
329 // pending exception field, we would need to deopt (currently C2 | |
330 // only). However, to do so would require that we transition back | |
331 // to the _thread_in_vm state. Instead we postpone the handling of | |
332 // the async exception. | |
333 | |
334 // Check for pending. suspends only. | |
335 if (_thread->has_special_runtime_exit_condition()) | |
336 _thread->handle_special_runtime_exit_condition(false); | |
337 } | |
338 }; | |
339 | |
340 // Debug class instantiated in JRT_ENTRY and ITR_ENTRY macro. | |
341 // Can be used to verify properties on enter/exit of the VM. | |
342 | |
343 #ifdef ASSERT | |
344 class VMEntryWrapper { | |
345 public: | |
346 VMEntryWrapper() { | |
347 if (VerifyLastFrame) { | |
348 InterfaceSupport::verify_last_frame(); | |
349 } | |
350 } | |
351 | |
352 ~VMEntryWrapper() { | |
353 InterfaceSupport::check_gc_alot(); | |
354 if (WalkStackALot) { | |
355 InterfaceSupport::walk_stack(); | |
356 } | |
357 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
358 if (ZapDeadLocalsOld) { | |
359 InterfaceSupport::zap_dead_locals_old(); | |
360 } | |
361 #endif | |
362 #ifdef COMPILER2 | |
363 // This option is not used by Compiler 1 | |
364 if (StressDerivedPointers) { | |
365 InterfaceSupport::stress_derived_pointers(); | |
366 } | |
367 #endif | |
368 if (DeoptimizeALot || DeoptimizeRandom) { | |
369 InterfaceSupport::deoptimizeAll(); | |
370 } | |
371 if (ZombieALot) { | |
372 InterfaceSupport::zombieAll(); | |
373 } | |
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374 if (UnlinkSymbolsALot) { |
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375 InterfaceSupport::unlinkSymbols(); |
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376 } |
0 | 377 // do verification AFTER potential deoptimization |
378 if (VerifyStack) { | |
379 InterfaceSupport::verify_stack(); | |
380 } | |
381 | |
382 } | |
383 }; | |
384 | |
385 | |
386 class VMNativeEntryWrapper { | |
387 public: | |
388 VMNativeEntryWrapper() { | |
389 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); | |
390 } | |
391 | |
392 ~VMNativeEntryWrapper() { | |
393 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); | |
394 } | |
395 }; | |
396 | |
397 #endif | |
398 | |
399 | |
400 // VM-internal runtime interface support | |
401 | |
402 #ifdef ASSERT | |
403 | |
404 class RuntimeHistogramElement : public HistogramElement { | |
405 public: | |
406 RuntimeHistogramElement(const char* name); | |
407 }; | |
408 | |
409 #define TRACE_CALL(result_type, header) \ | |
410 InterfaceSupport::_number_of_calls++; \ | |
411 if (TraceRuntimeCalls) \ | |
412 InterfaceSupport::trace(#result_type, #header); \ | |
413 if (CountRuntimeCalls) { \ | |
414 static RuntimeHistogramElement* e = new RuntimeHistogramElement(#header); \ | |
415 if (e != NULL) e->increment_count(); \ | |
416 } | |
417 #else | |
418 #define TRACE_CALL(result_type, header) \ | |
419 /* do nothing */ | |
420 #endif | |
421 | |
422 | |
423 // LEAF routines do not lock, GC or throw exceptions | |
424 | |
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425 #define VM_LEAF_BASE(result_type, header) \ |
0 | 426 TRACE_CALL(result_type, header) \ |
427 debug_only(NoHandleMark __hm;) \ | |
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428 os::verify_stack_alignment(); \ |
0 | 429 /* begin of body */ |
430 | |
431 | |
432 // ENTRY routines may lock, GC and throw exceptions | |
433 | |
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434 #define VM_ENTRY_BASE(result_type, header, thread) \ |
0 | 435 TRACE_CALL(result_type, header) \ |
436 HandleMarkCleaner __hm(thread); \ | |
437 Thread* THREAD = thread; \ | |
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438 os::verify_stack_alignment(); \ |
0 | 439 /* begin of body */ |
440 | |
441 | |
442 // QUICK_ENTRY routines behave like ENTRY but without a handle mark | |
443 | |
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444 #define VM_QUICK_ENTRY_BASE(result_type, header, thread) \ |
0 | 445 TRACE_CALL(result_type, header) \ |
446 debug_only(NoHandleMark __hm;) \ | |
447 Thread* THREAD = thread; \ | |
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448 os::verify_stack_alignment(); \ |
0 | 449 /* begin of body */ |
450 | |
451 | |
452 // Definitions for IRT (Interpreter Runtime) | |
453 // (thread is an argument passed in to all these routines) | |
454 | |
455 #define IRT_ENTRY(result_type, header) \ | |
456 result_type header { \ | |
457 ThreadInVMfromJava __tiv(thread); \ | |
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458 VM_ENTRY_BASE(result_type, header, thread) \ |
0 | 459 debug_only(VMEntryWrapper __vew;) |
460 | |
461 | |
462 #define IRT_LEAF(result_type, header) \ | |
463 result_type header { \ | |
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464 VM_LEAF_BASE(result_type, header) \ |
0 | 465 debug_only(No_Safepoint_Verifier __nspv(true);) |
466 | |
467 | |
468 #define IRT_ENTRY_NO_ASYNC(result_type, header) \ | |
469 result_type header { \ | |
470 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
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471 VM_ENTRY_BASE(result_type, header, thread) \ |
0 | 472 debug_only(VMEntryWrapper __vew;) |
473 | |
474 // Another special case for nmethod_entry_point so the nmethod that the | |
475 // interpreter is about to branch to doesn't get flushed before as we | |
476 // branch to it's interpreter_entry_point. Skip stress testing here too. | |
477 // Also we don't allow async exceptions because it is just too painful. | |
478 #define IRT_ENTRY_FOR_NMETHOD(result_type, header) \ | |
479 result_type header { \ | |
480 nmethodLocker _nmlock(nm); \ | |
481 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
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482 VM_ENTRY_BASE(result_type, header, thread) |
0 | 483 |
484 #define IRT_END } | |
485 | |
486 | |
487 // Definitions for JRT (Java (Compiler/Shared) Runtime) | |
488 | |
489 #define JRT_ENTRY(result_type, header) \ | |
490 result_type header { \ | |
491 ThreadInVMfromJava __tiv(thread); \ | |
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492 VM_ENTRY_BASE(result_type, header, thread) \ |
0 | 493 debug_only(VMEntryWrapper __vew;) |
494 | |
495 | |
496 #define JRT_LEAF(result_type, header) \ | |
497 result_type header { \ | |
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498 VM_LEAF_BASE(result_type, header) \ |
0 | 499 debug_only(JRT_Leaf_Verifier __jlv;) |
500 | |
501 | |
502 #define JRT_ENTRY_NO_ASYNC(result_type, header) \ | |
503 result_type header { \ | |
504 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
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505 VM_ENTRY_BASE(result_type, header, thread) \ |
0 | 506 debug_only(VMEntryWrapper __vew;) |
507 | |
508 // Same as JRT Entry but allows for return value after the safepoint | |
509 // to get back into Java from the VM | |
510 #define JRT_BLOCK_ENTRY(result_type, header) \ | |
511 result_type header { \ | |
512 TRACE_CALL(result_type, header) \ | |
513 HandleMarkCleaner __hm(thread); | |
514 | |
515 #define JRT_BLOCK \ | |
516 { \ | |
517 ThreadInVMfromJava __tiv(thread); \ | |
518 Thread* THREAD = thread; \ | |
519 debug_only(VMEntryWrapper __vew;) | |
520 | |
521 #define JRT_BLOCK_END } | |
522 | |
523 #define JRT_END } | |
524 | |
525 // Definitions for JNI | |
526 | |
527 #define JNI_ENTRY(result_type, header) \ | |
528 JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
529 WeakPreserveExceptionMark __wem(thread); | |
530 | |
531 #define JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
532 extern "C" { \ | |
533 result_type JNICALL header { \ | |
534 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
535 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
536 ThreadInVMfromNative __tiv(thread); \ | |
537 debug_only(VMNativeEntryWrapper __vew;) \ | |
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538 VM_ENTRY_BASE(result_type, header, thread) |
0 | 539 |
540 | |
541 // Ensure that the VMNativeEntryWrapper constructor, which can cause | |
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542 // a GC, is called outside the NoHandleMark (set via VM_QUICK_ENTRY_BASE). |
0 | 543 #define JNI_QUICK_ENTRY(result_type, header) \ |
544 extern "C" { \ | |
545 result_type JNICALL header { \ | |
546 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
547 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
548 ThreadInVMfromNative __tiv(thread); \ | |
549 debug_only(VMNativeEntryWrapper __vew;) \ | |
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550 VM_QUICK_ENTRY_BASE(result_type, header, thread) |
0 | 551 |
552 | |
553 #define JNI_LEAF(result_type, header) \ | |
554 extern "C" { \ | |
555 result_type JNICALL header { \ | |
556 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
557 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
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558 VM_LEAF_BASE(result_type, header) |
0 | 559 |
560 | |
561 // Close the routine and the extern "C" | |
562 #define JNI_END } } | |
563 | |
564 | |
565 | |
566 // Definitions for JVM | |
567 | |
568 #define JVM_ENTRY(result_type, header) \ | |
569 extern "C" { \ | |
570 result_type JNICALL header { \ | |
571 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
572 ThreadInVMfromNative __tiv(thread); \ | |
573 debug_only(VMNativeEntryWrapper __vew;) \ | |
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574 VM_ENTRY_BASE(result_type, header, thread) |
0 | 575 |
576 | |
577 #define JVM_ENTRY_NO_ENV(result_type, header) \ | |
578 extern "C" { \ | |
579 result_type JNICALL header { \ | |
580 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); \ | |
581 ThreadInVMfromNative __tiv(thread); \ | |
582 debug_only(VMNativeEntryWrapper __vew;) \ | |
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583 VM_ENTRY_BASE(result_type, header, thread) |
0 | 584 |
585 | |
586 #define JVM_QUICK_ENTRY(result_type, header) \ | |
587 extern "C" { \ | |
588 result_type JNICALL header { \ | |
589 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
590 ThreadInVMfromNative __tiv(thread); \ | |
591 debug_only(VMNativeEntryWrapper __vew;) \ | |
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592 VM_QUICK_ENTRY_BASE(result_type, header, thread) |
0 | 593 |
594 | |
595 #define JVM_LEAF(result_type, header) \ | |
596 extern "C" { \ | |
597 result_type JNICALL header { \ | |
598 VM_Exit::block_if_vm_exited(); \ | |
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599 VM_LEAF_BASE(result_type, header) |
0 | 600 |
601 | |
602 #define JVM_END } } | |
1972 | 603 |
604 #endif // SHARE_VM_RUNTIME_INTERFACESUPPORT_HPP |