Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/interfaceSupport.hpp @ 18096:ca6d25be853b jdk8u25-b13
8044269: Analysis of archive files.
Summary: Add checksum verification.
Reviewed-by: iklam, dholmes, mschoene
| author | jiangli |
|---|---|
| date | Tue, 12 Aug 2014 17:46:16 -0400 |
| parents | 2b8e28fdf503 |
| children | 4ca6dc0799b6 |
| 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 | |
| 14411 | 110 #ifdef TARGET_OS_FAMILY_aix |
| 111 # include "interfaceSupport_aix.hpp" | |
| 112 #endif | |
| 3960 | 113 #ifdef TARGET_OS_FAMILY_bsd |
| 114 # include "interfaceSupport_bsd.hpp" | |
| 115 #endif | |
| 1972 | 116 |
| 0 | 117 }; |
| 118 | |
| 119 | |
| 120 // Basic class for all thread transition classes. | |
| 121 | |
| 122 class ThreadStateTransition : public StackObj { | |
| 123 protected: | |
| 124 JavaThread* _thread; | |
| 125 public: | |
| 126 ThreadStateTransition(JavaThread *thread) { | |
| 127 _thread = thread; | |
| 128 assert(thread != NULL && thread->is_Java_thread(), "must be Java thread"); | |
| 129 } | |
| 130 | |
| 131 // Change threadstate in a manner, so safepoint can detect changes. | |
| 132 // Time-critical: called on exit from every runtime routine | |
| 133 static inline void transition(JavaThread *thread, JavaThreadState from, JavaThreadState to) { | |
| 134 assert(from != _thread_in_Java, "use transition_from_java"); | |
| 135 assert(from != _thread_in_native, "use transition_from_native"); | |
| 136 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); | |
| 137 assert(thread->thread_state() == from, "coming from wrong thread state"); | |
| 138 // Change to transition state (assumes total store ordering! -Urs) | |
| 139 thread->set_thread_state((JavaThreadState)(from + 1)); | |
| 140 | |
| 141 // Make sure new state is seen by VM thread | |
| 142 if (os::is_MP()) { | |
| 143 if (UseMembar) { | |
| 144 // Force a fence between the write above and read below | |
| 145 OrderAccess::fence(); | |
| 146 } else { | |
| 147 // store to serialize page so VM thread can do pseudo remote membar | |
| 148 os::write_memory_serialize_page(thread); | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 if (SafepointSynchronize::do_call_back()) { | |
| 153 SafepointSynchronize::block(thread); | |
| 154 } | |
| 155 thread->set_thread_state(to); | |
| 156 | |
| 157 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
| 158 } | |
| 159 | |
| 160 // transition_and_fence must be used on any thread state transition | |
| 161 // where there might not be a Java call stub on the stack, in | |
| 162 // particular on Windows where the Structured Exception Handler is | |
| 163 // set up in the call stub. os::write_memory_serialize_page() can | |
| 164 // fault and we can't recover from it on Windows without a SEH in | |
| 165 // place. | |
| 166 static inline void transition_and_fence(JavaThread *thread, JavaThreadState from, JavaThreadState to) { | |
| 167 assert(thread->thread_state() == from, "coming from wrong thread state"); | |
| 168 assert((from & 1) == 0 && (to & 1) == 0, "odd numbers are transitions states"); | |
| 169 // Change to transition state (assumes total store ordering! -Urs) | |
| 170 thread->set_thread_state((JavaThreadState)(from + 1)); | |
| 171 | |
| 172 // Make sure new state is seen by VM thread | |
| 173 if (os::is_MP()) { | |
| 174 if (UseMembar) { | |
| 175 // Force a fence between the write above and read below | |
| 176 OrderAccess::fence(); | |
| 177 } else { | |
| 178 // Must use this rather than serialization page in particular on Windows | |
| 179 InterfaceSupport::serialize_memory(thread); | |
| 180 } | |
| 181 } | |
| 182 | |
| 183 if (SafepointSynchronize::do_call_back()) { | |
| 184 SafepointSynchronize::block(thread); | |
| 185 } | |
| 186 thread->set_thread_state(to); | |
| 187 | |
| 188 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
| 189 } | |
| 190 | |
| 191 // Same as above, but assumes from = _thread_in_Java. This is simpler, since we | |
| 192 // never block on entry to the VM. This will break the code, since e.g. preserve arguments | |
| 193 // have not been setup. | |
| 194 static inline void transition_from_java(JavaThread *thread, JavaThreadState to) { | |
| 195 assert(thread->thread_state() == _thread_in_Java, "coming from wrong thread state"); | |
| 196 thread->set_thread_state(to); | |
| 197 } | |
| 198 | |
| 199 static inline void transition_from_native(JavaThread *thread, JavaThreadState to) { | |
| 200 assert((to & 1) == 0, "odd numbers are transitions states"); | |
| 201 assert(thread->thread_state() == _thread_in_native, "coming from wrong thread state"); | |
| 202 // Change to transition state (assumes total store ordering! -Urs) | |
| 203 thread->set_thread_state(_thread_in_native_trans); | |
| 204 | |
| 205 // Make sure new state is seen by GC thread | |
| 206 if (os::is_MP()) { | |
| 207 if (UseMembar) { | |
| 208 // Force a fence between the write above and read below | |
| 209 OrderAccess::fence(); | |
| 210 } else { | |
| 211 // Must use this rather than serialization page in particular on Windows | |
| 212 InterfaceSupport::serialize_memory(thread); | |
| 213 } | |
| 214 } | |
| 215 | |
| 216 // We never install asynchronous exceptions when coming (back) in | |
| 217 // to the runtime from native code because the runtime is not set | |
| 218 // up to handle exceptions floating around at arbitrary points. | |
| 219 if (SafepointSynchronize::do_call_back() || thread->is_suspend_after_native()) { | |
| 220 JavaThread::check_safepoint_and_suspend_for_native_trans(thread); | |
| 221 | |
| 222 // Clear unhandled oops anywhere where we could block, even if we don't. | |
| 223 CHECK_UNHANDLED_OOPS_ONLY(thread->clear_unhandled_oops();) | |
| 224 } | |
| 225 | |
| 226 thread->set_thread_state(to); | |
| 227 } | |
| 228 protected: | |
| 229 void trans(JavaThreadState from, JavaThreadState to) { transition(_thread, from, to); } | |
| 230 void trans_from_java(JavaThreadState to) { transition_from_java(_thread, to); } | |
| 231 void trans_from_native(JavaThreadState to) { transition_from_native(_thread, to); } | |
| 232 void trans_and_fence(JavaThreadState from, JavaThreadState to) { transition_and_fence(_thread, from, to); } | |
| 233 }; | |
| 234 | |
| 235 | |
| 236 class ThreadInVMfromJava : public ThreadStateTransition { | |
| 237 public: | |
| 238 ThreadInVMfromJava(JavaThread* thread) : ThreadStateTransition(thread) { | |
| 239 trans_from_java(_thread_in_vm); | |
| 240 } | |
| 241 ~ThreadInVMfromJava() { | |
| 242 trans(_thread_in_vm, _thread_in_Java); | |
| 243 // Check for pending. async. exceptions or suspends. | |
| 244 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(); | |
| 245 } | |
| 246 }; | |
| 247 | |
| 248 | |
| 249 class ThreadInVMfromUnknown { | |
| 250 private: | |
| 251 JavaThread* _thread; | |
| 252 public: | |
| 253 ThreadInVMfromUnknown() : _thread(NULL) { | |
| 254 Thread* t = Thread::current(); | |
| 255 if (t->is_Java_thread()) { | |
| 256 JavaThread* t2 = (JavaThread*) t; | |
| 257 if (t2->thread_state() == _thread_in_native) { | |
| 258 _thread = t2; | |
| 259 ThreadStateTransition::transition_from_native(t2, _thread_in_vm); | |
| 260 // Used to have a HandleMarkCleaner but that is dangerous as | |
| 261 // it could free a handle in our (indirect, nested) caller. | |
| 262 // We expect any handles will be short lived and figure we | |
| 263 // don't need an actual HandleMark. | |
| 264 } | |
| 265 } | |
| 266 } | |
| 267 ~ThreadInVMfromUnknown() { | |
| 268 if (_thread) { | |
| 269 ThreadStateTransition::transition_and_fence(_thread, _thread_in_vm, _thread_in_native); | |
| 270 } | |
| 271 } | |
| 272 }; | |
| 273 | |
| 274 | |
| 275 class ThreadInVMfromNative : public ThreadStateTransition { | |
| 276 public: | |
| 277 ThreadInVMfromNative(JavaThread* thread) : ThreadStateTransition(thread) { | |
| 278 trans_from_native(_thread_in_vm); | |
| 279 } | |
| 280 ~ThreadInVMfromNative() { | |
| 281 trans_and_fence(_thread_in_vm, _thread_in_native); | |
| 282 } | |
| 283 }; | |
| 284 | |
| 285 | |
| 286 class ThreadToNativeFromVM : public ThreadStateTransition { | |
| 287 public: | |
| 288 ThreadToNativeFromVM(JavaThread *thread) : ThreadStateTransition(thread) { | |
| 289 // We are leaving the VM at this point and going directly to native code. | |
| 290 // Block, if we are in the middle of a safepoint synchronization. | |
| 291 assert(!thread->owns_locks(), "must release all locks when leaving VM"); | |
| 292 thread->frame_anchor()->make_walkable(thread); | |
| 293 trans_and_fence(_thread_in_vm, _thread_in_native); | |
| 294 // Check for pending. async. exceptions or suspends. | |
| 295 if (_thread->has_special_runtime_exit_condition()) _thread->handle_special_runtime_exit_condition(false); | |
| 296 } | |
| 297 | |
| 298 ~ThreadToNativeFromVM() { | |
| 299 trans_from_native(_thread_in_vm); | |
| 300 // We don't need to clear_walkable because it will happen automagically when we return to java | |
| 301 } | |
| 302 }; | |
| 303 | |
| 304 | |
| 305 class ThreadBlockInVM : public ThreadStateTransition { | |
| 306 public: | |
| 307 ThreadBlockInVM(JavaThread *thread) | |
| 308 : ThreadStateTransition(thread) { | |
| 309 // Once we are blocked vm expects stack to be walkable | |
| 310 thread->frame_anchor()->make_walkable(thread); | |
| 311 trans_and_fence(_thread_in_vm, _thread_blocked); | |
| 312 } | |
| 313 ~ThreadBlockInVM() { | |
| 314 trans_and_fence(_thread_blocked, _thread_in_vm); | |
| 315 // We don't need to clear_walkable because it will happen automagically when we return to java | |
| 316 } | |
| 317 }; | |
| 318 | |
| 319 | |
| 320 // This special transition class is only used to prevent asynchronous exceptions | |
| 321 // from being installed on vm exit in situations where we can't tolerate them. | |
| 322 // See bugs: 4324348, 4854693, 4998314, 5040492, 5050705. | |
| 323 class ThreadInVMfromJavaNoAsyncException : public ThreadStateTransition { | |
| 324 public: | |
| 325 ThreadInVMfromJavaNoAsyncException(JavaThread* thread) : ThreadStateTransition(thread) { | |
| 326 trans_from_java(_thread_in_vm); | |
| 327 } | |
| 328 ~ThreadInVMfromJavaNoAsyncException() { | |
| 329 trans(_thread_in_vm, _thread_in_Java); | |
| 330 // NOTE: We do not check for pending. async. exceptions. | |
| 331 // If we did and moved the pending async exception over into the | |
| 332 // pending exception field, we would need to deopt (currently C2 | |
| 333 // only). However, to do so would require that we transition back | |
| 334 // to the _thread_in_vm state. Instead we postpone the handling of | |
| 335 // the async exception. | |
| 336 | |
| 337 // Check for pending. suspends only. | |
| 338 if (_thread->has_special_runtime_exit_condition()) | |
| 339 _thread->handle_special_runtime_exit_condition(false); | |
| 340 } | |
| 341 }; | |
| 342 | |
| 343 // Debug class instantiated in JRT_ENTRY and ITR_ENTRY macro. | |
| 344 // Can be used to verify properties on enter/exit of the VM. | |
| 345 | |
| 346 #ifdef ASSERT | |
| 347 class VMEntryWrapper { | |
| 348 public: | |
| 349 VMEntryWrapper() { | |
| 350 if (VerifyLastFrame) { | |
| 351 InterfaceSupport::verify_last_frame(); | |
| 352 } | |
| 353 } | |
| 354 | |
| 355 ~VMEntryWrapper() { | |
| 356 InterfaceSupport::check_gc_alot(); | |
| 357 if (WalkStackALot) { | |
| 358 InterfaceSupport::walk_stack(); | |
| 359 } | |
| 360 #ifdef ENABLE_ZAP_DEAD_LOCALS | |
| 361 if (ZapDeadLocalsOld) { | |
| 362 InterfaceSupport::zap_dead_locals_old(); | |
| 363 } | |
| 364 #endif | |
| 365 #ifdef COMPILER2 | |
| 366 // This option is not used by Compiler 1 | |
| 367 if (StressDerivedPointers) { | |
| 368 InterfaceSupport::stress_derived_pointers(); | |
| 369 } | |
| 370 #endif | |
| 371 if (DeoptimizeALot || DeoptimizeRandom) { | |
| 372 InterfaceSupport::deoptimizeAll(); | |
| 373 } | |
| 374 if (ZombieALot) { | |
| 375 InterfaceSupport::zombieAll(); | |
| 376 } | |
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377 if (UnlinkSymbolsALot) { |
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378 InterfaceSupport::unlinkSymbols(); |
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379 } |
| 0 | 380 // do verification AFTER potential deoptimization |
| 381 if (VerifyStack) { | |
| 382 InterfaceSupport::verify_stack(); | |
| 383 } | |
| 384 | |
| 385 } | |
| 386 }; | |
| 387 | |
| 388 | |
| 389 class VMNativeEntryWrapper { | |
| 390 public: | |
| 391 VMNativeEntryWrapper() { | |
| 392 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); | |
| 393 } | |
| 394 | |
| 395 ~VMNativeEntryWrapper() { | |
| 396 if (GCALotAtAllSafepoints) InterfaceSupport::check_gc_alot(); | |
| 397 } | |
| 398 }; | |
| 399 | |
| 400 #endif | |
| 401 | |
| 402 | |
| 403 // VM-internal runtime interface support | |
| 404 | |
| 405 #ifdef ASSERT | |
| 406 | |
| 407 class RuntimeHistogramElement : public HistogramElement { | |
| 408 public: | |
| 409 RuntimeHistogramElement(const char* name); | |
| 410 }; | |
| 411 | |
| 412 #define TRACE_CALL(result_type, header) \ | |
| 413 InterfaceSupport::_number_of_calls++; \ | |
| 414 if (TraceRuntimeCalls) \ | |
| 415 InterfaceSupport::trace(#result_type, #header); \ | |
| 416 if (CountRuntimeCalls) { \ | |
| 417 static RuntimeHistogramElement* e = new RuntimeHistogramElement(#header); \ | |
| 418 if (e != NULL) e->increment_count(); \ | |
| 419 } | |
| 420 #else | |
| 421 #define TRACE_CALL(result_type, header) \ | |
| 422 /* do nothing */ | |
| 423 #endif | |
| 424 | |
| 425 | |
| 426 // LEAF routines do not lock, GC or throw exceptions | |
| 427 | |
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428 #define VM_LEAF_BASE(result_type, header) \ |
| 0 | 429 TRACE_CALL(result_type, header) \ |
| 430 debug_only(NoHandleMark __hm;) \ | |
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431 os::verify_stack_alignment(); \ |
| 0 | 432 /* begin of body */ |
| 433 | |
| 434 | |
| 435 // ENTRY routines may lock, GC and throw exceptions | |
| 436 | |
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437 #define VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 438 TRACE_CALL(result_type, header) \ |
| 439 HandleMarkCleaner __hm(thread); \ | |
| 440 Thread* THREAD = thread; \ | |
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441 os::verify_stack_alignment(); \ |
| 0 | 442 /* begin of body */ |
| 443 | |
| 444 | |
| 445 // QUICK_ENTRY routines behave like ENTRY but without a handle mark | |
| 446 | |
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447 #define VM_QUICK_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 448 TRACE_CALL(result_type, header) \ |
| 449 debug_only(NoHandleMark __hm;) \ | |
| 450 Thread* THREAD = thread; \ | |
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451 os::verify_stack_alignment(); \ |
| 0 | 452 /* begin of body */ |
| 453 | |
| 454 | |
| 455 // Definitions for IRT (Interpreter Runtime) | |
| 456 // (thread is an argument passed in to all these routines) | |
| 457 | |
| 458 #define IRT_ENTRY(result_type, header) \ | |
| 459 result_type header { \ | |
| 460 ThreadInVMfromJava __tiv(thread); \ | |
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461 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 462 debug_only(VMEntryWrapper __vew;) |
| 463 | |
| 464 | |
| 465 #define IRT_LEAF(result_type, header) \ | |
| 466 result_type header { \ | |
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467 VM_LEAF_BASE(result_type, header) \ |
| 0 | 468 debug_only(No_Safepoint_Verifier __nspv(true);) |
| 469 | |
| 470 | |
| 471 #define IRT_ENTRY_NO_ASYNC(result_type, header) \ | |
| 472 result_type header { \ | |
| 473 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
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474 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 475 debug_only(VMEntryWrapper __vew;) |
| 476 | |
| 477 #define IRT_END } | |
| 478 | |
| 479 | |
| 480 // Definitions for JRT (Java (Compiler/Shared) Runtime) | |
| 481 | |
| 482 #define JRT_ENTRY(result_type, header) \ | |
| 483 result_type header { \ | |
| 484 ThreadInVMfromJava __tiv(thread); \ | |
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485 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 486 debug_only(VMEntryWrapper __vew;) |
| 487 | |
| 488 | |
| 489 #define JRT_LEAF(result_type, header) \ | |
| 490 result_type header { \ | |
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491 VM_LEAF_BASE(result_type, header) \ |
| 0 | 492 debug_only(JRT_Leaf_Verifier __jlv;) |
| 493 | |
| 494 | |
| 495 #define JRT_ENTRY_NO_ASYNC(result_type, header) \ | |
| 496 result_type header { \ | |
| 497 ThreadInVMfromJavaNoAsyncException __tiv(thread); \ | |
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498 VM_ENTRY_BASE(result_type, header, thread) \ |
| 0 | 499 debug_only(VMEntryWrapper __vew;) |
| 500 | |
| 501 // Same as JRT Entry but allows for return value after the safepoint | |
| 502 // to get back into Java from the VM | |
| 503 #define JRT_BLOCK_ENTRY(result_type, header) \ | |
| 504 result_type header { \ | |
| 505 TRACE_CALL(result_type, header) \ | |
| 506 HandleMarkCleaner __hm(thread); | |
| 507 | |
| 508 #define JRT_BLOCK \ | |
| 509 { \ | |
| 510 ThreadInVMfromJava __tiv(thread); \ | |
| 511 Thread* THREAD = thread; \ | |
| 512 debug_only(VMEntryWrapper __vew;) | |
| 513 | |
| 514 #define JRT_BLOCK_END } | |
| 515 | |
| 516 #define JRT_END } | |
| 517 | |
| 518 // Definitions for JNI | |
| 519 | |
| 520 #define JNI_ENTRY(result_type, header) \ | |
| 521 JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
| 522 WeakPreserveExceptionMark __wem(thread); | |
| 523 | |
| 524 #define JNI_ENTRY_NO_PRESERVE(result_type, header) \ | |
| 525 extern "C" { \ | |
| 526 result_type JNICALL header { \ | |
| 527 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 528 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
| 529 ThreadInVMfromNative __tiv(thread); \ | |
| 530 debug_only(VMNativeEntryWrapper __vew;) \ | |
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531 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 532 |
| 533 | |
| 534 // Ensure that the VMNativeEntryWrapper constructor, which can cause | |
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535 // a GC, is called outside the NoHandleMark (set via VM_QUICK_ENTRY_BASE). |
| 0 | 536 #define JNI_QUICK_ENTRY(result_type, header) \ |
| 537 extern "C" { \ | |
| 538 result_type JNICALL header { \ | |
| 539 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 540 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
| 541 ThreadInVMfromNative __tiv(thread); \ | |
| 542 debug_only(VMNativeEntryWrapper __vew;) \ | |
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543 VM_QUICK_ENTRY_BASE(result_type, header, thread) |
| 0 | 544 |
| 545 | |
| 546 #define JNI_LEAF(result_type, header) \ | |
| 547 extern "C" { \ | |
| 548 result_type JNICALL header { \ | |
| 549 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 550 assert( !VerifyJNIEnvThread || (thread == Thread::current()), "JNIEnv is only valid in same thread"); \ | |
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551 VM_LEAF_BASE(result_type, header) |
| 0 | 552 |
| 553 | |
| 554 // Close the routine and the extern "C" | |
| 555 #define JNI_END } } | |
| 556 | |
| 557 | |
| 558 | |
| 559 // Definitions for JVM | |
| 560 | |
| 561 #define JVM_ENTRY(result_type, header) \ | |
| 562 extern "C" { \ | |
| 563 result_type JNICALL header { \ | |
| 564 JavaThread* thread=JavaThread::thread_from_jni_environment(env); \ | |
| 565 ThreadInVMfromNative __tiv(thread); \ | |
| 566 debug_only(VMNativeEntryWrapper __vew;) \ | |
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567 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 568 |
| 569 | |
| 570 #define JVM_ENTRY_NO_ENV(result_type, header) \ | |
| 571 extern "C" { \ | |
| 572 result_type JNICALL header { \ | |
| 573 JavaThread* thread = (JavaThread*)ThreadLocalStorage::thread(); \ | |
| 574 ThreadInVMfromNative __tiv(thread); \ | |
| 575 debug_only(VMNativeEntryWrapper __vew;) \ | |
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576 VM_ENTRY_BASE(result_type, header, thread) |
| 0 | 577 |
| 578 | |
| 579 #define JVM_QUICK_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_QUICK_ENTRY_BASE(result_type, header, thread) |
| 0 | 586 |
| 587 | |
| 588 #define JVM_LEAF(result_type, header) \ | |
| 589 extern "C" { \ | |
| 590 result_type JNICALL header { \ | |
| 591 VM_Exit::block_if_vm_exited(); \ | |
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592 VM_LEAF_BASE(result_type, header) |
| 0 | 593 |
| 594 | |
| 595 #define JVM_END } } | |
| 1972 | 596 |
| 597 #endif // SHARE_VM_RUNTIME_INTERFACESUPPORT_HPP |