Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/interfaceSupport.hpp @ 14909:4ca6dc0799b6
Backout jdk9 merge
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Tue, 01 Apr 2014 13:57:07 +0200 |
| parents | 2b8e28fdf503 |
| children | 52b4284cb496 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #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: | |
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59 inline void* operator new(size_t size, void* ptr) throw() { |
| 0 | 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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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
never
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471 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 472 debug_only(VMEntryWrapper __vew;) |
| 473 | |
| 474 #define IRT_END } | |
| 475 | |
| 476 | |
| 477 // Definitions for JRT (Java (Compiler/Shared) Runtime) | |
| 478 | |
| 479 #define JRT_ENTRY(result_type, header) \ | |
| 480 result_type header { \ | |
| 481 ThreadInVMfromJava __tiv(thread); \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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482 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 483 debug_only(VMEntryWrapper __vew;) |
| 484 | |
| 485 | |
| 486 #define JRT_LEAF(result_type, header) \ | |
| 487 result_type header { \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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488 VM_LEAF_BASE(result_type, header) \ |
| 0 | 489 debug_only(JRT_Leaf_Verifier __jlv;) |
| 490 | |
| 491 | |
| 492 #define JRT_ENTRY_NO_ASYNC(result_type, header) \ | |
| 493 result_type header { \ | |
| 494 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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495 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 496 debug_only(VMEntryWrapper __vew;) |
| 497 | |
| 498 // Same as JRT Entry but allows for return value after the safepoint | |
| 499 // to get back into Java from the VM | |
| 500 #define JRT_BLOCK_ENTRY(result_type, header) \ | |
| 501 result_type header { \ | |
| 502 TRACE_CALL(result_type, header) \ | |
| 503 HandleMarkCleaner __hm(thread); | |
| 504 | |
| 505 #define JRT_BLOCK \ | |
| 506 { \ | |
| 507 ThreadInVMfromJava __tiv(thread); \ | |
| 508 Thread* THREAD = thread; \ | |
| 509 debug_only(VMEntryWrapper __vew;) | |
| 510 | |
| 511 #define JRT_BLOCK_END } | |
| 512 | |
| 513 #define JRT_END } | |
| 514 | |
| 515 // Definitions for JNI | |
| 516 | |
| 517 #define JNI_ENTRY(result_type, header) \ | |
| 518 JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
| 519 WeakPreserveExceptionMark __wem(thread); | |
| 520 | |
| 521 #define JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
| 522 extern "C" { \ | |
| 523 result_type JNICALL header { \ | |
| 524 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 525 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
| 526 ThreadInVMfromNative __tiv(thread); \ | |
| 527 debug_only(VMNativeEntryWrapper __vew;) \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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528 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 529 |
| 530 | |
| 531 // Ensure that the VMNativeEntryWrapper constructor, which can cause | |
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532 // a GC, is called outside the NoHandleMark (set via VM_QUICK_ENTRY_BASE). |
| 0 | 533 #define JNI_QUICK_ENTRY(result_type, header) \ |
| 534 extern "C" { \ | |
| 535 result_type JNICALL header { \ | |
| 536 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 537 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
| 538 ThreadInVMfromNative __tiv(thread); \ | |
| 539 debug_only(VMNativeEntryWrapper __vew;) \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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540 VM_QUICK_ENTRY_BASE(result_type, header, thread) |
| 0 | 541 |
| 542 | |
| 543 #define JNI_LEAF(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"); \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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548 VM_LEAF_BASE(result_type, header) |
| 0 | 549 |
| 550 | |
| 551 // Close the routine and the extern "C" | |
| 552 #define JNI_END } } | |
| 553 | |
| 554 | |
| 555 | |
| 556 // Definitions for JVM | |
| 557 | |
| 558 #define JVM_ENTRY(result_type, header) \ | |
| 559 extern "C" { \ | |
| 560 result_type JNICALL header { \ | |
| 561 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 562 ThreadInVMfromNative __tiv(thread); \ | |
| 563 debug_only(VMNativeEntryWrapper __vew;) \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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564 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 565 |
| 566 | |
| 567 #define JVM_ENTRY_NO_ENV(result_type, header) \ | |
| 568 extern "C" { \ | |
| 569 result_type JNICALL header { \ | |
| 570 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); \ | |
| 571 ThreadInVMfromNative __tiv(thread); \ | |
| 572 debug_only(VMNativeEntryWrapper __vew;) \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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573 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 574 |
| 575 | |
| 576 #define JVM_QUICK_ENTRY(result_type, header) \ | |
| 577 extern "C" { \ | |
| 578 result_type JNICALL header { \ | |
| 579 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 580 ThreadInVMfromNative __tiv(thread); \ | |
| 581 debug_only(VMNativeEntryWrapper __vew;) \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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582 VM_QUICK_ENTRY_BASE(result_type, header, thread) |
| 0 | 583 |
| 584 | |
| 585 #define JVM_LEAF(result_type, header) \ | |
| 586 extern "C" { \ | |
| 587 result_type JNICALL header { \ | |
| 588 VM_Exit::block_if_vm_exited(); \ | |
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7103224: collision between __LEAF define in interfaceSupport.hpp and /usr/include/sys/cdefs.h with gcc
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589 VM_LEAF_BASE(result_type, header) |
| 0 | 590 |
| 591 | |
| 592 #define JVM_END } } | |
| 1972 | 593 |
| 594 #endif // SHARE_VM_RUNTIME_INTERFACESUPPORT_HPP |