Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/interfaceSupport.hpp @ 6842:b9a9ed0f8eeb
7197424: update copyright year to match last edit in jdk8 hotspot repository
Summary: Update copyright year to 2012 for relevant files
Reviewed-by: dholmes, coleenp
| author | mikael |
|---|---|
| date | Tue, 09 Oct 2012 10:09:34 -0700 |
| parents | da4be62fb889 |
| children | f34d701e952e |
| rev | line source |
|---|---|
| 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" | |
| 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 | |
| 3960 | 47 #ifdef TARGET_OS_FAMILY_bsd |
| 48 # include "thread_bsd.inline.hpp" | |
| 49 #endif | |
| 1972 | 50 |
| 0 | 51 // Wrapper for all entry points to the virtual machine. |
| 52 // The HandleMarkCleaner is a faster version of HandleMark. | |
| 53 // It relies on the fact that there is a HandleMark further | |
| 54 // down the stack (in JavaCalls::call_helper), and just resets | |
| 55 // to the saved values in that HandleMark. | |
| 56 | |
| 57 class HandleMarkCleaner: public StackObj { | |
| 58 private: | |
| 59 Thread* _thread; | |
| 60 public: | |
| 61 HandleMarkCleaner(Thread* thread) { | |
| 62 _thread = thread; | |
| 63 _thread->last_handle_mark()->push(); | |
| 64 } | |
| 65 ~HandleMarkCleaner() { | |
| 66 _thread->last_handle_mark()->pop_and_restore(); | |
| 67 } | |
| 68 | |
| 69 private: | |
| 70 inline void* operator new(size_t size, void* ptr) { | |
| 71 return ptr; | |
| 72 } | |
| 73 }; | |
| 74 | |
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75 // InterfaceSupport provides functionality used by the VM_LEAF_BASE and |
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76 // VM_ENTRY_BASE macros. These macros are used to guard entry points into |
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77 // the VM and perform checks upon leave of the VM. |
| 0 | 78 |
| 79 | |
| 80 class InterfaceSupport: AllStatic { | |
| 81 # ifdef ASSERT | |
| 82 public: | |
| 83 static long _scavenge_alot_counter; | |
| 84 static long _fullgc_alot_counter; | |
| 85 static long _number_of_calls; | |
| 86 static long _fullgc_alot_invocation; | |
| 87 | |
| 88 // tracing | |
| 89 static void trace(const char* result_type, const char* header); | |
| 90 | |
| 91 // Helper methods used to implement +ScavengeALot and +FullGCALot | |
| 92 static void check_gc_alot() { if (ScavengeALot || FullGCALot) gc_alot(); } | |
| 93 static void gc_alot(); | |
| 94 | |
| 95 static void walk_stack_from(vframe* start_vf); | |
| 96 static void walk_stack(); | |
| 97 | |
| 98 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
| 99 static void zap_dead_locals_old(); | |
| 100 # endif | |
| 101 | |
| 102 static void zombieAll(); | |
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103 static void unlinkSymbols(); |
| 0 | 104 static void deoptimizeAll(); |
| 105 static void stress_derived_pointers(); | |
| 106 static void verify_stack(); | |
| 107 static void verify_last_frame(); | |
| 108 # endif | |
| 109 | |
| 110 public: | |
| 111 // OS dependent stuff | |
| 1972 | 112 #ifdef TARGET_OS_FAMILY_linux |
| 113 # include "interfaceSupport_linux.hpp" | |
| 114 #endif | |
| 115 #ifdef TARGET_OS_FAMILY_solaris | |
| 116 # include "interfaceSupport_solaris.hpp" | |
| 117 #endif | |
| 118 #ifdef TARGET_OS_FAMILY_windows | |
| 119 # include "interfaceSupport_windows.hpp" | |
| 120 #endif | |
| 3960 | 121 #ifdef TARGET_OS_FAMILY_bsd |
| 122 # include "interfaceSupport_bsd.hpp" | |
| 123 #endif | |
| 1972 | 124 |
| 0 | 125 }; |
| 126 | |
| 127 | |
| 128 // Basic class for all thread transition classes. | |
| 129 | |
| 130 class ThreadStateTransition : public StackObj { | |
| 131 protected: | |
| 132 JavaThread* _thread; | |
| 133 public: | |
| 134 ThreadStateTransition(JavaThread *thread) { | |
| 135 _thread = thread; | |
| 136 assert(thread != NULL && thread->is_Java_thread(), "must be Java thread"); | |
| 137 } | |
| 138 | |
| 139 // Change threadstate in a manner, so safepoint can detect changes. | |
| 140 // Time-critical: called on exit from every runtime routine | |
| 141 static inline void transition(JavaThread *thread, JavaThreadState from, JavaThreadState to) { | |
| 142 assert(from != _thread_in_Java, "use transition_from_java"); | |
| 143 assert(from != _thread_in_native, "use transition_from_native"); | |
| 144 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); | |
| 145 assert(thread->thread_state() == from, "coming from wrong thread state"); | |
| 146 // Change to transition state (assumes total store ordering! -Urs) | |
| 147 thread->set_thread_state((JavaThreadState)(from + 1)); | |
| 148 | |
| 149 // Make sure new state is seen by VM thread | |
| 150 if (os::is_MP()) { | |
| 151 if (UseMembar) { | |
| 152 // Force a fence between the write above and read below | |
| 153 OrderAccess::fence(); | |
| 154 } else { | |
| 155 // store to serialize page so VM thread can do pseudo remote membar | |
| 156 os::write_memory_serialize_page(thread); | |
| 157 } | |
| 158 } | |
| 159 | |
| 160 if (SafepointSynchronize::do_call_back()) { | |
| 161 SafepointSynchronize::block(thread); | |
| 162 } | |
| 163 thread->set_thread_state(to); | |
| 164 | |
| 165 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
| 166 } | |
| 167 | |
| 168 // transition_and_fence must be used on any thread state transition | |
| 169 // where there might not be a Java call stub on the stack, in | |
| 170 // particular on Windows where the Structured Exception Handler is | |
| 171 // set up in the call stub. os::write_memory_serialize_page() can | |
| 172 // fault and we can't recover from it on Windows without a SEH in | |
| 173 // place. | |
| 174 static inline void transition_and_fence(JavaThread *thread, JavaThreadState from, JavaThreadState to) { | |
| 175 assert(thread->thread_state() == from, "coming from wrong thread state"); | |
| 176 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); | |
| 177 // Change to transition state (assumes total store ordering! -Urs) | |
| 178 thread->set_thread_state((JavaThreadState)(from + 1)); | |
| 179 | |
| 180 // Make sure new state is seen by VM thread | |
| 181 if (os::is_MP()) { | |
| 182 if (UseMembar) { | |
| 183 // Force a fence between the write above and read below | |
| 184 OrderAccess::fence(); | |
| 185 } else { | |
| 186 // Must use this rather than serialization page in particular on Windows | |
| 187 InterfaceSupport::serialize_memory(thread); | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 if (SafepointSynchronize::do_call_back()) { | |
| 192 SafepointSynchronize::block(thread); | |
| 193 } | |
| 194 thread->set_thread_state(to); | |
| 195 | |
| 196 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
| 197 } | |
| 198 | |
| 199 // Same as above, but assumes from = _thread_in_Java. This is simpler, since we | |
| 200 // never block on entry to the VM. This will break the code, since e.g. preserve arguments | |
| 201 // have not been setup. | |
| 202 static inline void transition_from_java(JavaThread *thread, JavaThreadState to) { | |
| 203 assert(thread->thread_state() == _thread_in_Java, "coming from wrong thread state"); | |
| 204 thread->set_thread_state(to); | |
| 205 } | |
| 206 | |
| 207 static inline void transition_from_native(JavaThread *thread, JavaThreadState to) { | |
| 208 assert((to & 1) == 0, "odd numbers are transitions states"); | |
| 209 assert(thread->thread_state() == _thread_in_native, "coming from wrong thread state"); | |
| 210 // Change to transition state (assumes total store ordering! -Urs) | |
| 211 thread->set_thread_state(_thread_in_native_trans); | |
| 212 | |
| 213 // Make sure new state is seen by GC thread | |
| 214 if (os::is_MP()) { | |
| 215 if (UseMembar) { | |
| 216 // Force a fence between the write above and read below | |
| 217 OrderAccess::fence(); | |
| 218 } else { | |
| 219 // Must use this rather than serialization page in particular on Windows | |
| 220 InterfaceSupport::serialize_memory(thread); | |
| 221 } | |
| 222 } | |
| 223 | |
| 224 // We never install asynchronous exceptions when coming (back) in | |
| 225 // to the runtime from native code because the runtime is not set | |
| 226 // up to handle exceptions floating around at arbitrary points. | |
| 227 if (SafepointSynchronize::do_call_back() || thread->is_suspend_after_native()) { | |
| 228 JavaThread::check_safepoint_and_suspend_for_native_trans(thread); | |
| 229 | |
| 230 // Clear unhandled oops anywhere where we could block, even if we don't. | |
| 231 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
| 232 } | |
| 233 | |
| 234 thread->set_thread_state(to); | |
| 235 } | |
| 236 protected: | |
| 237 void trans(JavaThreadState from, JavaThreadState to) { transition(_thread, from, to); } | |
| 238 void trans_from_java(JavaThreadState to) { transition_from_java(_thread, to); } | |
| 239 void trans_from_native(JavaThreadState to) { transition_from_native(_thread, to); } | |
| 240 void trans_and_fence(JavaThreadState from, JavaThreadState to) { transition_and_fence(_thread, from, to); } | |
| 241 }; | |
| 242 | |
| 243 | |
| 244 class ThreadInVMfromJava : public ThreadStateTransition { | |
| 245 public: | |
| 246 ThreadInVMfromJava(JavaThread* thread) : ThreadStateTransition(thread) { | |
| 247 trans_from_java(_thread_in_vm); | |
| 248 } | |
| 249 ~ThreadInVMfromJava() { | |
| 250 trans(_thread_in_vm, _thread_in_Java); | |
| 251 // Check for pending. async. exceptions or suspends. | |
| 252 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(); | |
| 253 } | |
| 254 }; | |
| 255 | |
| 256 | |
| 257 class ThreadInVMfromUnknown { | |
| 258 private: | |
| 259 JavaThread* _thread; | |
| 260 public: | |
| 261 ThreadInVMfromUnknown() : _thread(NULL) { | |
| 262 Thread* t = Thread::current(); | |
| 263 if (t->is_Java_thread()) { | |
| 264 JavaThread* t2 = (JavaThread*) t; | |
| 265 if (t2->thread_state() == _thread_in_native) { | |
| 266 _thread = t2; | |
| 267 ThreadStateTransition::transition_from_native(t2, _thread_in_vm); | |
| 268 // Used to have a HandleMarkCleaner but that is dangerous as | |
| 269 // it could free a handle in our (indirect, nested) caller. | |
| 270 // We expect any handles will be short lived and figure we | |
| 271 // don't need an actual HandleMark. | |
| 272 } | |
| 273 } | |
| 274 } | |
| 275 ~ThreadInVMfromUnknown() { | |
| 276 if (_thread) { | |
| 277 ThreadStateTransition::transition_and_fence(_thread, _thread_in_vm, _thread_in_native); | |
| 278 } | |
| 279 } | |
| 280 }; | |
| 281 | |
| 282 | |
| 283 class ThreadInVMfromNative : public ThreadStateTransition { | |
| 284 public: | |
| 285 ThreadInVMfromNative(JavaThread* thread) : ThreadStateTransition(thread) { | |
| 286 trans_from_native(_thread_in_vm); | |
| 287 } | |
| 288 ~ThreadInVMfromNative() { | |
| 289 trans_and_fence(_thread_in_vm, _thread_in_native); | |
| 290 } | |
| 291 }; | |
| 292 | |
| 293 | |
| 294 class ThreadToNativeFromVM : public ThreadStateTransition { | |
| 295 public: | |
| 296 ThreadToNativeFromVM(JavaThread *thread) : ThreadStateTransition(thread) { | |
| 297 // We are leaving the VM at this point and going directly to native code. | |
| 298 // Block, if we are in the middle of a safepoint synchronization. | |
| 299 assert(!thread->owns_locks(), "must release all locks when leaving VM"); | |
| 300 thread->frame_anchor()->make_walkable(thread); | |
| 301 trans_and_fence(_thread_in_vm, _thread_in_native); | |
| 302 // Check for pending. async. exceptions or suspends. | |
| 303 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(false); | |
| 304 } | |
| 305 | |
| 306 ~ThreadToNativeFromVM() { | |
| 307 trans_from_native(_thread_in_vm); | |
| 308 // We don't need to clear_walkable because it will happen automagically when we return to java | |
| 309 } | |
| 310 }; | |
| 311 | |
| 312 | |
| 313 class ThreadBlockInVM : public ThreadStateTransition { | |
| 314 public: | |
| 315 ThreadBlockInVM(JavaThread *thread) | |
| 316 : ThreadStateTransition(thread) { | |
| 317 // Once we are blocked vm expects stack to be walkable | |
| 318 thread->frame_anchor()->make_walkable(thread); | |
| 319 trans_and_fence(_thread_in_vm, _thread_blocked); | |
| 320 } | |
| 321 ~ThreadBlockInVM() { | |
| 322 trans_and_fence(_thread_blocked, _thread_in_vm); | |
| 323 // We don't need to clear_walkable because it will happen automagically when we return to java | |
| 324 } | |
| 325 }; | |
| 326 | |
| 327 | |
| 328 // This special transition class is only used to prevent asynchronous exceptions | |
| 329 // from being installed on vm exit in situations where we can't tolerate them. | |
| 330 // See bugs: 4324348, 4854693, 4998314, 5040492, 5050705. | |
| 331 class ThreadInVMfromJavaNoAsyncException : public ThreadStateTransition { | |
| 332 public: | |
| 333 ThreadInVMfromJavaNoAsyncException(JavaThread* thread) : ThreadStateTransition(thread) { | |
| 334 trans_from_java(_thread_in_vm); | |
| 335 } | |
| 336 ~ThreadInVMfromJavaNoAsyncException() { | |
| 337 trans(_thread_in_vm, _thread_in_Java); | |
| 338 // NOTE: We do not check for pending. async. exceptions. | |
| 339 // If we did and moved the pending async exception over into the | |
| 340 // pending exception field, we would need to deopt (currently C2 | |
| 341 // only). However, to do so would require that we transition back | |
| 342 // to the _thread_in_vm state. Instead we postpone the handling of | |
| 343 // the async exception. | |
| 344 | |
| 345 // Check for pending. suspends only. | |
| 346 if (_thread->has_special_runtime_exit_condition()) | |
| 347 _thread->handle_special_runtime_exit_condition(false); | |
| 348 } | |
| 349 }; | |
| 350 | |
| 351 // Debug class instantiated in JRT_ENTRY and ITR_ENTRY macro. | |
| 352 // Can be used to verify properties on enter/exit of the VM. | |
| 353 | |
| 354 #ifdef ASSERT | |
| 355 class VMEntryWrapper { | |
| 356 public: | |
| 357 VMEntryWrapper() { | |
| 358 if (VerifyLastFrame) { | |
| 359 InterfaceSupport::verify_last_frame(); | |
| 360 } | |
| 361 } | |
| 362 | |
| 363 ~VMEntryWrapper() { | |
| 364 InterfaceSupport::check_gc_alot(); | |
| 365 if (WalkStackALot) { | |
| 366 InterfaceSupport::walk_stack(); | |
| 367 } | |
| 368 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
| 369 if (ZapDeadLocalsOld) { | |
| 370 InterfaceSupport::zap_dead_locals_old(); | |
| 371 } | |
| 372 #endif | |
| 373 #ifdef COMPILER2 | |
| 374 // This option is not used by Compiler 1 | |
| 375 if (StressDerivedPointers) { | |
| 376 InterfaceSupport::stress_derived_pointers(); | |
| 377 } | |
| 378 #endif | |
| 379 if (DeoptimizeALot || DeoptimizeRandom) { | |
| 380 InterfaceSupport::deoptimizeAll(); | |
| 381 } | |
| 382 if (ZombieALot) { | |
| 383 InterfaceSupport::zombieAll(); | |
| 384 } | |
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385 if (UnlinkSymbolsALot) { |
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386 InterfaceSupport::unlinkSymbols(); |
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387 } |
| 0 | 388 // do verification AFTER potential deoptimization |
| 389 if (VerifyStack) { | |
| 390 InterfaceSupport::verify_stack(); | |
| 391 } | |
| 392 | |
| 393 } | |
| 394 }; | |
| 395 | |
| 396 | |
| 397 class VMNativeEntryWrapper { | |
| 398 public: | |
| 399 VMNativeEntryWrapper() { | |
| 400 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); | |
| 401 } | |
| 402 | |
| 403 ~VMNativeEntryWrapper() { | |
| 404 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); | |
| 405 } | |
| 406 }; | |
| 407 | |
| 408 #endif | |
| 409 | |
| 410 | |
| 411 // VM-internal runtime interface support | |
| 412 | |
| 413 #ifdef ASSERT | |
| 414 | |
| 415 class RuntimeHistogramElement : public HistogramElement { | |
| 416 public: | |
| 417 RuntimeHistogramElement(const char* name); | |
| 418 }; | |
| 419 | |
| 420 #define TRACE_CALL(result_type, header) \ | |
| 421 InterfaceSupport::_number_of_calls++; \ | |
| 422 if (TraceRuntimeCalls) \ | |
| 423 InterfaceSupport::trace(#result_type, #header); \ | |
| 424 if (CountRuntimeCalls) { \ | |
| 425 static RuntimeHistogramElement* e = new RuntimeHistogramElement(#header); \ | |
| 426 if (e != NULL) e->increment_count(); \ | |
| 427 } | |
| 428 #else | |
| 429 #define TRACE_CALL(result_type, header) \ | |
| 430 /* do nothing */ | |
| 431 #endif | |
| 432 | |
| 433 | |
| 434 // LEAF routines do not lock, GC or throw exceptions | |
| 435 | |
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436 #define VM_LEAF_BASE(result_type, header) \ |
| 0 | 437 TRACE_CALL(result_type, header) \ |
| 438 debug_only(NoHandleMark __hm;) \ | |
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439 os::verify_stack_alignment(); \ |
| 0 | 440 /* begin of body */ |
| 441 | |
| 442 | |
| 443 // ENTRY routines may lock, GC and throw exceptions | |
| 444 | |
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445 #define VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 446 TRACE_CALL(result_type, header) \ |
| 447 HandleMarkCleaner __hm(thread); \ | |
| 448 Thread* THREAD = thread; \ | |
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449 os::verify_stack_alignment(); \ |
| 0 | 450 /* begin of body */ |
| 451 | |
| 452 | |
| 453 // QUICK_ENTRY routines behave like ENTRY but without a handle mark | |
| 454 | |
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455 #define VM_QUICK_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 456 TRACE_CALL(result_type, header) \ |
| 457 debug_only(NoHandleMark __hm;) \ | |
| 458 Thread* THREAD = thread; \ | |
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459 os::verify_stack_alignment(); \ |
| 0 | 460 /* begin of body */ |
| 461 | |
| 462 | |
| 463 // Definitions for IRT (Interpreter Runtime) | |
| 464 // (thread is an argument passed in to all these routines) | |
| 465 | |
| 466 #define IRT_ENTRY(result_type, header) \ | |
| 467 result_type header { \ | |
| 468 ThreadInVMfromJava __tiv(thread); \ | |
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469 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 470 debug_only(VMEntryWrapper __vew;) |
| 471 | |
| 472 | |
| 473 #define IRT_LEAF(result_type, header) \ | |
| 474 result_type header { \ | |
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475 VM_LEAF_BASE(result_type, header) \ |
| 0 | 476 debug_only(No_Safepoint_Verifier __nspv(true);) |
| 477 | |
| 478 | |
| 479 #define IRT_ENTRY_NO_ASYNC(result_type, header) \ | |
| 480 result_type header { \ | |
| 481 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
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482 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 483 debug_only(VMEntryWrapper __vew;) |
| 484 | |
| 485 // Another special case for nmethod_entry_point so the nmethod that the | |
| 486 // interpreter is about to branch to doesn't get flushed before as we | |
| 487 // branch to it's interpreter_entry_point. Skip stress testing here too. | |
| 488 // Also we don't allow async exceptions because it is just too painful. | |
| 489 #define IRT_ENTRY_FOR_NMETHOD(result_type, header) \ | |
| 490 result_type header { \ | |
| 491 nmethodLocker _nmlock(nm); \ | |
| 492 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
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493 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 494 |
| 495 #define IRT_END } | |
| 496 | |
| 497 | |
| 498 // Definitions for JRT (Java (Compiler/Shared) Runtime) | |
| 499 | |
| 500 #define JRT_ENTRY(result_type, header) \ | |
| 501 result_type header { \ | |
| 502 ThreadInVMfromJava __tiv(thread); \ | |
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503 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 504 debug_only(VMEntryWrapper __vew;) |
| 505 | |
| 506 | |
| 507 #define JRT_LEAF(result_type, header) \ | |
| 508 result_type header { \ | |
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509 VM_LEAF_BASE(result_type, header) \ |
| 0 | 510 debug_only(JRT_Leaf_Verifier __jlv;) |
| 511 | |
| 512 | |
| 513 #define JRT_ENTRY_NO_ASYNC(result_type, header) \ | |
| 514 result_type header { \ | |
| 515 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
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516 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 517 debug_only(VMEntryWrapper __vew;) |
| 518 | |
| 519 // Same as JRT Entry but allows for return value after the safepoint | |
| 520 // to get back into Java from the VM | |
| 521 #define JRT_BLOCK_ENTRY(result_type, header) \ | |
| 522 result_type header { \ | |
| 523 TRACE_CALL(result_type, header) \ | |
| 524 HandleMarkCleaner __hm(thread); | |
| 525 | |
| 526 #define JRT_BLOCK \ | |
| 527 { \ | |
| 528 ThreadInVMfromJava __tiv(thread); \ | |
| 529 Thread* THREAD = thread; \ | |
| 530 debug_only(VMEntryWrapper __vew;) | |
| 531 | |
| 532 #define JRT_BLOCK_END } | |
| 533 | |
| 534 #define JRT_END } | |
| 535 | |
| 536 // Definitions for JNI | |
| 537 | |
| 538 #define JNI_ENTRY(result_type, header) \ | |
| 539 JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
| 540 WeakPreserveExceptionMark __wem(thread); | |
| 541 | |
| 542 #define JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
| 543 extern "C" { \ | |
| 544 result_type JNICALL header { \ | |
| 545 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 546 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
| 547 ThreadInVMfromNative __tiv(thread); \ | |
| 548 debug_only(VMNativeEntryWrapper __vew;) \ | |
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549 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 550 |
| 551 | |
| 552 // Ensure that the VMNativeEntryWrapper constructor, which can cause | |
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553 // a GC, is called outside the NoHandleMark (set via VM_QUICK_ENTRY_BASE). |
| 0 | 554 #define JNI_QUICK_ENTRY(result_type, header) \ |
| 555 extern "C" { \ | |
| 556 result_type JNICALL header { \ | |
| 557 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 558 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
| 559 ThreadInVMfromNative __tiv(thread); \ | |
| 560 debug_only(VMNativeEntryWrapper __vew;) \ | |
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561 VM_QUICK_ENTRY_BASE(result_type, header, thread) |
| 0 | 562 |
| 563 | |
| 564 #define JNI_LEAF(result_type, header) \ | |
| 565 extern "C" { \ | |
| 566 result_type JNICALL header { \ | |
| 567 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 568 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
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569 VM_LEAF_BASE(result_type, header) |
| 0 | 570 |
| 571 | |
| 572 // Close the routine and the extern "C" | |
| 573 #define JNI_END } } | |
| 574 | |
| 575 | |
| 576 | |
| 577 // Definitions for JVM | |
| 578 | |
| 579 #define JVM_ENTRY(result_type, header) \ | |
| 580 extern "C" { \ | |
| 581 result_type JNICALL header { \ | |
| 582 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 583 ThreadInVMfromNative __tiv(thread); \ | |
| 584 debug_only(VMNativeEntryWrapper __vew;) \ | |
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585 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 586 |
| 587 | |
| 588 #define JVM_ENTRY_NO_ENV(result_type, header) \ | |
| 589 extern "C" { \ | |
| 590 result_type JNICALL header { \ | |
| 591 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); \ | |
| 592 ThreadInVMfromNative __tiv(thread); \ | |
| 593 debug_only(VMNativeEntryWrapper __vew;) \ | |
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594 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 595 |
| 596 | |
| 597 #define JVM_QUICK_ENTRY(result_type, header) \ | |
| 598 extern "C" { \ | |
| 599 result_type JNICALL header { \ | |
| 600 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 601 ThreadInVMfromNative __tiv(thread); \ | |
| 602 debug_only(VMNativeEntryWrapper __vew;) \ | |
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603 VM_QUICK_ENTRY_BASE(result_type, header, thread) |
| 0 | 604 |
| 605 | |
| 606 #define JVM_LEAF(result_type, header) \ | |
| 607 extern "C" { \ | |
| 608 result_type JNICALL header { \ | |
| 609 VM_Exit::block_if_vm_exited(); \ | |
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610 VM_LEAF_BASE(result_type, header) |
| 0 | 611 |
| 612 | |
| 613 #define JVM_END } } | |
| 1972 | 614 |
| 615 #endif // SHARE_VM_RUNTIME_INTERFACESUPPORT_HPP |