1/* 2 * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25#include "precompiled.hpp" 26 27#include <new> 28 29#include "classfile/classLoaderData.hpp" 30#include "classfile/modules.hpp" 31#include "classfile/stringTable.hpp" 32#include "code/codeCache.hpp" 33#include "compiler/methodMatcher.hpp" 34#include "compiler/directivesParser.hpp" 35#include "jvmtifiles/jvmtiEnv.hpp" 36#include "memory/metadataFactory.hpp" 37#include "memory/metaspaceShared.hpp" 38#include "memory/iterator.hpp" 39#include "memory/resourceArea.hpp" 40#include "memory/universe.hpp" 41#include "memory/oopFactory.hpp" 42#include "oops/array.hpp" 43#include "oops/constantPool.hpp" 44#include "oops/objArrayKlass.hpp" 45#include "oops/objArrayOop.inline.hpp" 46#include "oops/oop.inline.hpp" 47#include "prims/wbtestmethods/parserTests.hpp" 48#include "prims/whitebox.hpp" 49#include "runtime/arguments.hpp" 50#include "runtime/compilationPolicy.hpp" 51#include "runtime/deoptimization.hpp" 52#include "runtime/interfaceSupport.hpp" 53#include "runtime/javaCalls.hpp" 54#include "runtime/os.hpp" 55#include "runtime/sweeper.hpp" 56#include "runtime/thread.hpp" 57#include "runtime/vm_version.hpp" 58#include "utilities/align.hpp" 59#include "utilities/debug.hpp" 60#include "utilities/exceptions.hpp" 61#include "utilities/macros.hpp" 62#if INCLUDE_ALL_GCS 63#include "gc/g1/concurrentMarkThread.hpp" 64#include "gc/g1/g1CollectedHeap.inline.hpp" 65#include "gc/g1/g1ConcurrentMark.hpp" 66#include "gc/g1/heapRegionRemSet.hpp" 67#include "gc/parallel/parallelScavengeHeap.inline.hpp" 68#include "gc/parallel/adjoiningGenerations.hpp" 69#endif // INCLUDE_ALL_GCS 70#if INCLUDE_NMT 71#include "services/mallocSiteTable.hpp" 72#include "services/memTracker.hpp" 73#include "utilities/nativeCallStack.hpp" 74#endif // INCLUDE_NMT 75 76 77#define SIZE_T_MAX_VALUE ((size_t) -1) 78 79bool WhiteBox::_used = false; 80volatile bool WhiteBox::compilation_locked = false; 81 82class VM_WhiteBoxOperation : public VM_Operation { 83 public: 84 VM_WhiteBoxOperation() { } 85 VMOp_Type type() const { return VMOp_WhiteBoxOperation; } 86 bool allow_nested_vm_operations() const { return true; } 87}; 88 89 90WB_ENTRY(jlong, WB_GetObjectAddress(JNIEnv* env, jobject o, jobject obj)) 91 return (jlong)(void*)JNIHandles::resolve(obj); 92WB_END 93 94WB_ENTRY(jint, WB_GetHeapOopSize(JNIEnv* env, jobject o)) 95 return heapOopSize; 96WB_END 97 98WB_ENTRY(jint, WB_GetVMPageSize(JNIEnv* env, jobject o)) 99 return os::vm_page_size(); 100WB_END 101 102WB_ENTRY(jlong, WB_GetVMAllocationGranularity(JNIEnv* env, jobject o)) 103 return os::vm_allocation_granularity(); 104WB_END 105 106WB_ENTRY(jlong, WB_GetVMLargePageSize(JNIEnv* env, jobject o)) 107 return os::large_page_size(); 108WB_END 109 110class WBIsKlassAliveClosure : public KlassClosure { 111 Symbol* _name; 112 bool _found; 113public: 114 WBIsKlassAliveClosure(Symbol* name) : _name(name), _found(false) {} 115 116 void do_klass(Klass* k) { 117 if (_found) return; 118 Symbol* ksym = k->name(); 119 if (ksym->fast_compare(_name) == 0) { 120 _found = true; 121 } 122 } 123 124 bool found() const { 125 return _found; 126 } 127}; 128 129WB_ENTRY(jboolean, WB_IsClassAlive(JNIEnv* env, jobject target, jstring name)) 130 oop h_name = JNIHandles::resolve(name); 131 if (h_name == NULL) return false; 132 Symbol* sym = java_lang_String::as_symbol(h_name, CHECK_false); 133 TempNewSymbol tsym(sym); // Make sure to decrement reference count on sym on return 134 135 WBIsKlassAliveClosure closure(sym); 136 ClassLoaderDataGraph::classes_do(&closure); 137 138 return closure.found(); 139WB_END 140 141WB_ENTRY(void, WB_AddToBootstrapClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) { 142#if INCLUDE_JVMTI 143 ResourceMark rm; 144 const char* seg = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(segment)); 145 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION); 146 jvmtiError err = jvmti_env->AddToBootstrapClassLoaderSearch(seg); 147 assert(err == JVMTI_ERROR_NONE, "must not fail"); 148#endif 149} 150WB_END 151 152WB_ENTRY(void, WB_AddToSystemClassLoaderSearch(JNIEnv* env, jobject o, jstring segment)) { 153#if INCLUDE_JVMTI 154 ResourceMark rm; 155 const char* seg = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(segment)); 156 JvmtiEnv* jvmti_env = JvmtiEnv::create_a_jvmti(JVMTI_VERSION); 157 jvmtiError err = jvmti_env->AddToSystemClassLoaderSearch(seg); 158 assert(err == JVMTI_ERROR_NONE, "must not fail"); 159#endif 160} 161WB_END 162 163 164WB_ENTRY(jlong, WB_GetCompressedOopsMaxHeapSize(JNIEnv* env, jobject o)) { 165 return (jlong)Arguments::max_heap_for_compressed_oops(); 166} 167WB_END 168 169WB_ENTRY(void, WB_PrintHeapSizes(JNIEnv* env, jobject o)) { 170 CollectorPolicy * p = Universe::heap()->collector_policy(); 171 tty->print_cr("Minimum heap " SIZE_FORMAT " Initial heap " 172 SIZE_FORMAT " Maximum heap " SIZE_FORMAT " Space alignment " SIZE_FORMAT " Heap alignment " SIZE_FORMAT, 173 p->min_heap_byte_size(), p->initial_heap_byte_size(), p->max_heap_byte_size(), 174 p->space_alignment(), p->heap_alignment()); 175} 176WB_END 177 178#ifndef PRODUCT 179// Forward declaration 180void TestReservedSpace_test(); 181void TestReserveMemorySpecial_test(); 182void TestVirtualSpace_test(); 183void TestMetaspaceAux_test(); 184#endif 185 186WB_ENTRY(void, WB_RunMemoryUnitTests(JNIEnv* env, jobject o)) 187#ifndef PRODUCT 188 TestReservedSpace_test(); 189 TestReserveMemorySpecial_test(); 190 TestVirtualSpace_test(); 191 TestMetaspaceAux_test(); 192#endif 193WB_END 194 195WB_ENTRY(void, WB_ReadFromNoaccessArea(JNIEnv* env, jobject o)) 196 size_t granularity = os::vm_allocation_granularity(); 197 ReservedHeapSpace rhs(100 * granularity, granularity, false); 198 VirtualSpace vs; 199 vs.initialize(rhs, 50 * granularity); 200 201 // Check if constraints are complied 202 if (!( UseCompressedOops && rhs.base() != NULL && 203 Universe::narrow_oop_base() != NULL && 204 Universe::narrow_oop_use_implicit_null_checks() )) { 205 tty->print_cr("WB_ReadFromNoaccessArea method is useless:\n " 206 "\tUseCompressedOops is %d\n" 207 "\trhs.base() is " PTR_FORMAT "\n" 208 "\tUniverse::narrow_oop_base() is " PTR_FORMAT "\n" 209 "\tUniverse::narrow_oop_use_implicit_null_checks() is %d", 210 UseCompressedOops, 211 p2i(rhs.base()), 212 p2i(Universe::narrow_oop_base()), 213 Universe::narrow_oop_use_implicit_null_checks()); 214 return; 215 } 216 tty->print_cr("Reading from no access area... "); 217 tty->print_cr("*(vs.low_boundary() - rhs.noaccess_prefix() / 2 ) = %c", 218 *(vs.low_boundary() - rhs.noaccess_prefix() / 2 )); 219WB_END 220 221static jint wb_stress_virtual_space_resize(size_t reserved_space_size, 222 size_t magnitude, size_t iterations) { 223 size_t granularity = os::vm_allocation_granularity(); 224 ReservedHeapSpace rhs(reserved_space_size * granularity, granularity, false); 225 VirtualSpace vs; 226 if (!vs.initialize(rhs, 0)) { 227 tty->print_cr("Failed to initialize VirtualSpace. Can't proceed."); 228 return 3; 229 } 230 231 int seed = os::random(); 232 tty->print_cr("Random seed is %d", seed); 233 os::init_random(seed); 234 235 for (size_t i = 0; i < iterations; i++) { 236 237 // Whether we will shrink or grow 238 bool shrink = os::random() % 2L == 0; 239 240 // Get random delta to resize virtual space 241 size_t delta = (size_t)os::random() % magnitude; 242 243 // If we are about to shrink virtual space below zero, then expand instead 244 if (shrink && vs.committed_size() < delta) { 245 shrink = false; 246 } 247 248 // Resizing by delta 249 if (shrink) { 250 vs.shrink_by(delta); 251 } else { 252 // If expanding fails expand_by will silently return false 253 vs.expand_by(delta, true); 254 } 255 } 256 return 0; 257} 258 259WB_ENTRY(jint, WB_StressVirtualSpaceResize(JNIEnv* env, jobject o, 260 jlong reserved_space_size, jlong magnitude, jlong iterations)) 261 tty->print_cr("reservedSpaceSize=" JLONG_FORMAT ", magnitude=" JLONG_FORMAT ", " 262 "iterations=" JLONG_FORMAT "\n", reserved_space_size, magnitude, 263 iterations); 264 if (reserved_space_size < 0 || magnitude < 0 || iterations < 0) { 265 tty->print_cr("One of variables printed above is negative. Can't proceed.\n"); 266 return 1; 267 } 268 269 // sizeof(size_t) depends on whether OS is 32bit or 64bit. sizeof(jlong) is 270 // always 8 byte. That's why we should avoid overflow in case of 32bit platform. 271 if (sizeof(size_t) < sizeof(jlong)) { 272 jlong size_t_max_value = (jlong) SIZE_T_MAX_VALUE; 273 if (reserved_space_size > size_t_max_value || magnitude > size_t_max_value 274 || iterations > size_t_max_value) { 275 tty->print_cr("One of variables printed above overflows size_t. Can't proceed.\n"); 276 return 2; 277 } 278 } 279 280 return wb_stress_virtual_space_resize((size_t) reserved_space_size, 281 (size_t) magnitude, (size_t) iterations); 282WB_END 283 284static const jint serial_code = 1; 285static const jint parallel_code = 2; 286static const jint cms_code = 4; 287static const jint g1_code = 8; 288 289WB_ENTRY(jint, WB_CurrentGC(JNIEnv* env, jobject o, jobject obj)) 290 if (UseSerialGC) { 291 return serial_code; 292 } else if (UseParallelGC || UseParallelOldGC) { 293 return parallel_code; 294 } if (UseConcMarkSweepGC) { 295 return cms_code; 296 } else if (UseG1GC) { 297 return g1_code; 298 } 299 ShouldNotReachHere(); 300 return 0; 301WB_END 302 303WB_ENTRY(jint, WB_AllSupportedGC(JNIEnv* env, jobject o, jobject obj)) 304#if INCLUDE_ALL_GCS 305 return serial_code | parallel_code | cms_code | g1_code; 306#else 307 return serial_code; 308#endif // INCLUDE_ALL_GCS 309WB_END 310 311WB_ENTRY(jboolean, WB_GCSelectedByErgo(JNIEnv* env, jobject o, jobject obj)) 312 if (UseSerialGC) { 313 return FLAG_IS_ERGO(UseSerialGC); 314 } else if (UseParallelGC) { 315 return FLAG_IS_ERGO(UseParallelGC); 316 } else if (UseParallelOldGC) { 317 return FLAG_IS_ERGO(UseParallelOldGC); 318 } else if (UseConcMarkSweepGC) { 319 return FLAG_IS_ERGO(UseConcMarkSweepGC); 320 } else if (UseG1GC) { 321 return FLAG_IS_ERGO(UseG1GC); 322 } 323 ShouldNotReachHere(); 324 return false; 325WB_END 326 327WB_ENTRY(jboolean, WB_isObjectInOldGen(JNIEnv* env, jobject o, jobject obj)) 328 oop p = JNIHandles::resolve(obj); 329#if INCLUDE_ALL_GCS 330 if (UseG1GC) { 331 G1CollectedHeap* g1 = G1CollectedHeap::heap(); 332 const HeapRegion* hr = g1->heap_region_containing(p); 333 if (hr == NULL) { 334 return false; 335 } 336 return !(hr->is_young()); 337 } else if (UseParallelGC) { 338 ParallelScavengeHeap* psh = ParallelScavengeHeap::heap(); 339 return !psh->is_in_young(p); 340 } 341#endif // INCLUDE_ALL_GCS 342 GenCollectedHeap* gch = GenCollectedHeap::heap(); 343 return !gch->is_in_young(p); 344WB_END 345 346WB_ENTRY(jlong, WB_GetObjectSize(JNIEnv* env, jobject o, jobject obj)) 347 oop p = JNIHandles::resolve(obj); 348 return p->size() * HeapWordSize; 349WB_END 350 351WB_ENTRY(jlong, WB_GetHeapSpaceAlignment(JNIEnv* env, jobject o)) 352 size_t alignment = Universe::heap()->collector_policy()->space_alignment(); 353 return (jlong)alignment; 354WB_END 355 356WB_ENTRY(jlong, WB_GetHeapAlignment(JNIEnv* env, jobject o)) 357 size_t alignment = Universe::heap()->collector_policy()->heap_alignment(); 358 return (jlong)alignment; 359WB_END 360 361WB_ENTRY(jboolean, WB_SupportsConcurrentGCPhaseControl(JNIEnv* env, jobject o)) 362 return Universe::heap()->supports_concurrent_phase_control(); 363WB_END 364 365WB_ENTRY(jobjectArray, WB_GetConcurrentGCPhases(JNIEnv* env, jobject o)) 366 const char* const* phases = Universe::heap()->concurrent_phases(); 367 jint nphases = 0; 368 for ( ; phases[nphases] != NULL; ++nphases) ; 369 370 ResourceMark rm(thread); 371 ThreadToNativeFromVM ttn(thread); 372 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string()); 373 CHECK_JNI_EXCEPTION_(env, NULL); 374 375 jobjectArray result = env->NewObjectArray(nphases, clazz, NULL); 376 CHECK_JNI_EXCEPTION_(env, NULL); 377 378 // If push fails, return with pending exception. 379 if (env->PushLocalFrame(nphases) < 0) return NULL; 380 for (jint i = 0; i < nphases; ++i) { 381 jstring phase = env->NewStringUTF(phases[i]); 382 CHECK_JNI_EXCEPTION_(env, NULL); 383 env->SetObjectArrayElement(result, i, phase); 384 CHECK_JNI_EXCEPTION_(env, NULL); 385 } 386 env->PopLocalFrame(NULL); 387 388 return result; 389WB_END 390 391WB_ENTRY(jboolean, WB_RequestConcurrentGCPhase(JNIEnv* env, jobject o, jstring name)) 392 Handle h_name(THREAD, JNIHandles::resolve(name)); 393 ResourceMark rm; 394 const char* c_name = java_lang_String::as_utf8_string(h_name()); 395 return Universe::heap()->request_concurrent_phase(c_name); 396WB_END 397 398#if INCLUDE_ALL_GCS 399WB_ENTRY(jboolean, WB_G1IsHumongous(JNIEnv* env, jobject o, jobject obj)) 400 if (UseG1GC) { 401 G1CollectedHeap* g1 = G1CollectedHeap::heap(); 402 oop result = JNIHandles::resolve(obj); 403 const HeapRegion* hr = g1->heap_region_containing(result); 404 return hr->is_humongous(); 405 } 406 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1IsHumongous: G1 GC is not enabled"); 407WB_END 408 409WB_ENTRY(jboolean, WB_G1BelongsToHumongousRegion(JNIEnv* env, jobject o, jlong addr)) 410 if (UseG1GC) { 411 G1CollectedHeap* g1 = G1CollectedHeap::heap(); 412 const HeapRegion* hr = g1->heap_region_containing((void*) addr); 413 return hr->is_humongous(); 414 } 415 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1BelongsToHumongousRegion: G1 GC is not enabled"); 416WB_END 417 418WB_ENTRY(jboolean, WB_G1BelongsToFreeRegion(JNIEnv* env, jobject o, jlong addr)) 419 if (UseG1GC) { 420 G1CollectedHeap* g1 = G1CollectedHeap::heap(); 421 const HeapRegion* hr = g1->heap_region_containing((void*) addr); 422 return hr->is_free(); 423 } 424 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1BelongsToFreeRegion: G1 GC is not enabled"); 425WB_END 426 427WB_ENTRY(jlong, WB_G1NumMaxRegions(JNIEnv* env, jobject o)) 428 if (UseG1GC) { 429 G1CollectedHeap* g1 = G1CollectedHeap::heap(); 430 size_t nr = g1->max_regions(); 431 return (jlong)nr; 432 } 433 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1NumMaxRegions: G1 GC is not enabled"); 434WB_END 435 436WB_ENTRY(jlong, WB_G1NumFreeRegions(JNIEnv* env, jobject o)) 437 if (UseG1GC) { 438 G1CollectedHeap* g1 = G1CollectedHeap::heap(); 439 size_t nr = g1->num_free_regions(); 440 return (jlong)nr; 441 } 442 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1NumFreeRegions: G1 GC is not enabled"); 443WB_END 444 445WB_ENTRY(jboolean, WB_G1InConcurrentMark(JNIEnv* env, jobject o)) 446 if (UseG1GC) { 447 G1CollectedHeap* g1h = G1CollectedHeap::heap(); 448 return g1h->concurrent_mark()->cmThread()->during_cycle(); 449 } 450 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1InConcurrentMark: G1 GC is not enabled"); 451WB_END 452 453WB_ENTRY(jboolean, WB_G1StartMarkCycle(JNIEnv* env, jobject o)) 454 if (UseG1GC) { 455 G1CollectedHeap* g1h = G1CollectedHeap::heap(); 456 if (!g1h->concurrent_mark()->cmThread()->during_cycle()) { 457 g1h->collect(GCCause::_wb_conc_mark); 458 return true; 459 } 460 return false; 461 } 462 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1StartMarkCycle: G1 GC is not enabled"); 463WB_END 464 465WB_ENTRY(jint, WB_G1RegionSize(JNIEnv* env, jobject o)) 466 if (UseG1GC) { 467 return (jint)HeapRegion::GrainBytes; 468 } 469 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1RegionSize: G1 GC is not enabled"); 470WB_END 471 472WB_ENTRY(jlong, WB_PSVirtualSpaceAlignment(JNIEnv* env, jobject o)) 473#if INCLUDE_ALL_GCS 474 if (UseParallelGC) { 475 return ParallelScavengeHeap::heap()->gens()->virtual_spaces()->alignment(); 476 } 477#endif // INCLUDE_ALL_GCS 478 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_PSVirtualSpaceAlignment: Parallel GC is not enabled"); 479WB_END 480 481WB_ENTRY(jlong, WB_PSHeapGenerationAlignment(JNIEnv* env, jobject o)) 482#if INCLUDE_ALL_GCS 483 if (UseParallelGC) { 484 return ParallelScavengeHeap::heap()->generation_alignment(); 485 } 486#endif // INCLUDE_ALL_GCS 487 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_PSHeapGenerationAlignment: Parallel GC is not enabled"); 488WB_END 489 490WB_ENTRY(jobject, WB_G1AuxiliaryMemoryUsage(JNIEnv* env)) 491#if INCLUDE_ALL_GCS 492 if (UseG1GC) { 493 ResourceMark rm(THREAD); 494 G1CollectedHeap* g1h = G1CollectedHeap::heap(); 495 MemoryUsage usage = g1h->get_auxiliary_data_memory_usage(); 496 Handle h = MemoryService::create_MemoryUsage_obj(usage, CHECK_NULL); 497 return JNIHandles::make_local(env, h()); 498 } 499#endif // INCLUDE_ALL_GCS 500 THROW_MSG_0(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1AuxiliaryMemoryUsage: G1 GC is not enabled"); 501WB_END 502 503class OldRegionsLivenessClosure: public HeapRegionClosure { 504 505 private: 506 const int _liveness; 507 size_t _total_count; 508 size_t _total_memory; 509 size_t _total_memory_to_free; 510 511 public: 512 OldRegionsLivenessClosure(int liveness) : 513 _liveness(liveness), 514 _total_count(0), 515 _total_memory(0), 516 _total_memory_to_free(0) { } 517 518 size_t total_count() { return _total_count; } 519 size_t total_memory() { return _total_memory; } 520 size_t total_memory_to_free() { return _total_memory_to_free; } 521 522 bool doHeapRegion(HeapRegion* r) { 523 if (r->is_old()) { 524 size_t prev_live = r->marked_bytes(); 525 size_t live = r->live_bytes(); 526 size_t size = r->used(); 527 size_t reg_size = HeapRegion::GrainBytes; 528 if (size > 0 && ((int)(live * 100 / size) < _liveness)) { 529 _total_memory += size; 530 ++_total_count; 531 if (size == reg_size) { 532 // we don't include non-full regions since they are unlikely included in mixed gc 533 // for testing purposes it's enough to have lowest estimation of total memory that is expected to be freed 534 _total_memory_to_free += size - prev_live; 535 } 536 } 537 } 538 return false; 539 } 540}; 541 542 543WB_ENTRY(jlongArray, WB_G1GetMixedGCInfo(JNIEnv* env, jobject o, jint liveness)) 544 if (!UseG1GC) { 545 THROW_MSG_NULL(vmSymbols::java_lang_UnsupportedOperationException(), "WB_G1GetMixedGCInfo: G1 GC is not enabled"); 546 } 547 if (liveness < 0) { 548 THROW_MSG_NULL(vmSymbols::java_lang_IllegalArgumentException(), "liveness value should be non-negative"); 549 } 550 551 G1CollectedHeap* g1h = G1CollectedHeap::heap(); 552 OldRegionsLivenessClosure rli(liveness); 553 g1h->heap_region_iterate(&rli); 554 555 typeArrayOop result = oopFactory::new_longArray(3, CHECK_NULL); 556 result->long_at_put(0, rli.total_count()); 557 result->long_at_put(1, rli.total_memory()); 558 result->long_at_put(2, rli.total_memory_to_free()); 559 return (jlongArray) JNIHandles::make_local(env, result); 560WB_END 561 562#endif // INCLUDE_ALL_GCS 563 564#if INCLUDE_NMT 565// Alloc memory using the test memory type so that we can use that to see if 566// NMT picks it up correctly 567WB_ENTRY(jlong, WB_NMTMalloc(JNIEnv* env, jobject o, jlong size)) 568 jlong addr = 0; 569 addr = (jlong)(uintptr_t)os::malloc(size, mtTest); 570 return addr; 571WB_END 572 573// Alloc memory with pseudo call stack. The test can create psudo malloc 574// allocation site to stress the malloc tracking. 575WB_ENTRY(jlong, WB_NMTMallocWithPseudoStack(JNIEnv* env, jobject o, jlong size, jint pseudo_stack)) 576 address pc = (address)(size_t)pseudo_stack; 577 NativeCallStack stack(&pc, 1); 578 return (jlong)(uintptr_t)os::malloc(size, mtTest, stack); 579WB_END 580 581// Free the memory allocated by NMTAllocTest 582WB_ENTRY(void, WB_NMTFree(JNIEnv* env, jobject o, jlong mem)) 583 os::free((void*)(uintptr_t)mem); 584WB_END 585 586WB_ENTRY(jlong, WB_NMTReserveMemory(JNIEnv* env, jobject o, jlong size)) 587 jlong addr = 0; 588 589 addr = (jlong)(uintptr_t)os::reserve_memory(size); 590 MemTracker::record_virtual_memory_type((address)addr, mtTest); 591 592 return addr; 593WB_END 594 595WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) 596 os::commit_memory((char *)(uintptr_t)addr, size, !ExecMem); 597 MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest); 598WB_END 599 600WB_ENTRY(void, WB_NMTUncommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) 601 os::uncommit_memory((char *)(uintptr_t)addr, size); 602WB_END 603 604WB_ENTRY(void, WB_NMTReleaseMemory(JNIEnv* env, jobject o, jlong addr, jlong size)) 605 os::release_memory((char *)(uintptr_t)addr, size); 606WB_END 607 608WB_ENTRY(jboolean, WB_NMTChangeTrackingLevel(JNIEnv* env)) 609 // Test that we can downgrade NMT levels but not upgrade them. 610 if (MemTracker::tracking_level() == NMT_off) { 611 MemTracker::transition_to(NMT_off); 612 return MemTracker::tracking_level() == NMT_off; 613 } else { 614 assert(MemTracker::tracking_level() == NMT_detail, "Should start out as detail tracking"); 615 MemTracker::transition_to(NMT_summary); 616 assert(MemTracker::tracking_level() == NMT_summary, "Should be summary now"); 617 618 // Can't go to detail once NMT is set to summary. 619 MemTracker::transition_to(NMT_detail); 620 assert(MemTracker::tracking_level() == NMT_summary, "Should still be summary now"); 621 622 // Shutdown sets tracking level to minimal. 623 MemTracker::shutdown(); 624 assert(MemTracker::tracking_level() == NMT_minimal, "Should be minimal now"); 625 626 // Once the tracking level is minimal, we cannot increase to summary. 627 // The code ignores this request instead of asserting because if the malloc site 628 // table overflows in another thread, it tries to change the code to summary. 629 MemTracker::transition_to(NMT_summary); 630 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); 631 632 // Really can never go up to detail, verify that the code would never do this. 633 MemTracker::transition_to(NMT_detail); 634 assert(MemTracker::tracking_level() == NMT_minimal, "Should still be minimal now"); 635 return MemTracker::tracking_level() == NMT_minimal; 636 } 637WB_END 638 639WB_ENTRY(jint, WB_NMTGetHashSize(JNIEnv* env, jobject o)) 640 int hash_size = MallocSiteTable::hash_buckets(); 641 assert(hash_size > 0, "NMT hash_size should be > 0"); 642 return (jint)hash_size; 643WB_END 644#endif // INCLUDE_NMT 645 646static jmethodID reflected_method_to_jmid(JavaThread* thread, JNIEnv* env, jobject method) { 647 assert(method != NULL, "method should not be null"); 648 ThreadToNativeFromVM ttn(thread); 649 return env->FromReflectedMethod(method); 650} 651 652// Deoptimizes all compiled frames and makes nmethods not entrant if it's requested 653class VM_WhiteBoxDeoptimizeFrames : public VM_WhiteBoxOperation { 654 private: 655 int _result; 656 const bool _make_not_entrant; 657 public: 658 VM_WhiteBoxDeoptimizeFrames(bool make_not_entrant) : 659 _result(0), _make_not_entrant(make_not_entrant) { } 660 int result() const { return _result; } 661 662 void doit() { 663 for (JavaThread* t = Threads::first(); t != NULL; t = t->next()) { 664 if (t->has_last_Java_frame()) { 665 for (StackFrameStream fst(t, UseBiasedLocking); !fst.is_done(); fst.next()) { 666 frame* f = fst.current(); 667 if (f->can_be_deoptimized() && !f->is_deoptimized_frame()) { 668 RegisterMap* reg_map = fst.register_map(); 669 Deoptimization::deoptimize(t, *f, reg_map); 670 if (_make_not_entrant) { 671 CompiledMethod* cm = CodeCache::find_compiled(f->pc()); 672 assert(cm != NULL, "sanity check"); 673 cm->make_not_entrant(); 674 } 675 ++_result; 676 } 677 } 678 } 679 } 680 } 681}; 682 683WB_ENTRY(jint, WB_DeoptimizeFrames(JNIEnv* env, jobject o, jboolean make_not_entrant)) 684 VM_WhiteBoxDeoptimizeFrames op(make_not_entrant == JNI_TRUE); 685 VMThread::execute(&op); 686 return op.result(); 687WB_END 688 689WB_ENTRY(void, WB_DeoptimizeAll(JNIEnv* env, jobject o)) 690 MutexLockerEx mu(Compile_lock); 691 CodeCache::mark_all_nmethods_for_deoptimization(); 692 VM_Deoptimize op; 693 VMThread::execute(&op); 694WB_END 695 696WB_ENTRY(jint, WB_DeoptimizeMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) 697 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 698 int result = 0; 699 CHECK_JNI_EXCEPTION_(env, result); 700 MutexLockerEx mu(Compile_lock); 701 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 702 if (is_osr) { 703 result += mh->mark_osr_nmethods(); 704 } else if (mh->code() != NULL) { 705 mh->code()->mark_for_deoptimization(); 706 ++result; 707 } 708 result += CodeCache::mark_for_deoptimization(mh()); 709 if (result > 0) { 710 VM_Deoptimize op; 711 VMThread::execute(&op); 712 } 713 return result; 714WB_END 715 716WB_ENTRY(jboolean, WB_IsMethodCompiled(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) 717 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 718 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 719 MutexLockerEx mu(Compile_lock); 720 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 721 CompiledMethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); 722 if (code == NULL) { 723 return JNI_FALSE; 724 } 725 return (code->is_alive() && !code->is_marked_for_deoptimization()); 726WB_END 727 728WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) 729 if (method == NULL || comp_level > MIN2((CompLevel) TieredStopAtLevel, CompLevel_highest_tier)) { 730 return false; 731 } 732 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 733 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 734 MutexLockerEx mu(Compile_lock); 735 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 736 if (is_osr) { 737 return CompilationPolicy::can_be_osr_compiled(mh, comp_level); 738 } else { 739 return CompilationPolicy::can_be_compiled(mh, comp_level); 740 } 741WB_END 742 743WB_ENTRY(jboolean, WB_IsMethodQueuedForCompilation(JNIEnv* env, jobject o, jobject method)) 744 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 745 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 746 MutexLockerEx mu(Compile_lock); 747 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 748 return mh->queued_for_compilation(); 749WB_END 750 751WB_ENTRY(jboolean, WB_IsIntrinsicAvailable(JNIEnv* env, jobject o, jobject method, jobject compilation_context, jint compLevel)) 752 if (compLevel < CompLevel_none || compLevel > MIN2((CompLevel) TieredStopAtLevel, CompLevel_highest_tier)) { 753 return false; // Intrinsic is not available on a non-existent compilation level. 754 } 755 jmethodID method_id, compilation_context_id; 756 method_id = reflected_method_to_jmid(thread, env, method); 757 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 758 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(method_id)); 759 760 DirectiveSet* directive; 761 AbstractCompiler* comp = CompileBroker::compiler((int)compLevel); 762 assert(comp != NULL, "compiler not available"); 763 if (compilation_context != NULL) { 764 compilation_context_id = reflected_method_to_jmid(thread, env, compilation_context); 765 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 766 methodHandle cch(THREAD, Method::checked_resolve_jmethod_id(compilation_context_id)); 767 directive = DirectivesStack::getMatchingDirective(cch, comp); 768 } else { 769 // Calling with NULL matches default directive 770 directive = DirectivesStack::getDefaultDirective(comp); 771 } 772 bool result = comp->is_intrinsic_available(mh, directive); 773 DirectivesStack::release(directive); 774 return result; 775WB_END 776 777WB_ENTRY(jint, WB_GetMethodCompilationLevel(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) 778 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 779 CHECK_JNI_EXCEPTION_(env, CompLevel_none); 780 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 781 CompiledMethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); 782 return (code != NULL ? code->comp_level() : CompLevel_none); 783WB_END 784 785WB_ENTRY(void, WB_MakeMethodNotCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level, jboolean is_osr)) 786 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 787 CHECK_JNI_EXCEPTION(env); 788 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 789 if (is_osr) { 790 mh->set_not_osr_compilable(comp_level, true /* report */, "WhiteBox"); 791 } else { 792 mh->set_not_compilable(comp_level, true /* report */, "WhiteBox"); 793 } 794WB_END 795 796WB_ENTRY(jint, WB_GetMethodEntryBci(JNIEnv* env, jobject o, jobject method)) 797 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 798 CHECK_JNI_EXCEPTION_(env, InvocationEntryBci); 799 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 800 CompiledMethod* code = mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false); 801 return (code != NULL && code->is_osr_method() ? code->osr_entry_bci() : InvocationEntryBci); 802WB_END 803 804WB_ENTRY(jboolean, WB_TestSetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) 805 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 806 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 807 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 808 bool result = mh->dont_inline(); 809 mh->set_dont_inline(value == JNI_TRUE); 810 return result; 811WB_END 812 813WB_ENTRY(jint, WB_GetCompileQueueSize(JNIEnv* env, jobject o, jint comp_level)) 814 if (comp_level == CompLevel_any) { 815 return CompileBroker::queue_size(CompLevel_full_optimization) /* C2 */ + 816 CompileBroker::queue_size(CompLevel_full_profile) /* C1 */; 817 } else { 818 return CompileBroker::queue_size(comp_level); 819 } 820WB_END 821 822WB_ENTRY(jboolean, WB_TestSetForceInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value)) 823 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 824 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 825 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 826 bool result = mh->force_inline(); 827 mh->set_force_inline(value == JNI_TRUE); 828 return result; 829WB_END 830 831bool WhiteBox::compile_method(Method* method, int comp_level, int bci, Thread* THREAD) { 832 // Screen for unavailable/bad comp level or null method 833 if (method == NULL || comp_level > MIN2((CompLevel) TieredStopAtLevel, CompLevel_highest_tier) || 834 CompileBroker::compiler(comp_level) == NULL) { 835 return false; 836 } 837 methodHandle mh(THREAD, method); 838 nmethod* nm = CompileBroker::compile_method(mh, bci, comp_level, mh, mh->invocation_count(), CompileTask::Reason_Whitebox, THREAD); 839 MutexLockerEx mu(Compile_lock); 840 return (mh->queued_for_compilation() || nm != NULL); 841} 842 843WB_ENTRY(jboolean, WB_EnqueueMethodForCompilation(JNIEnv* env, jobject o, jobject method, jint comp_level, jint bci)) 844 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 845 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 846 return WhiteBox::compile_method(Method::checked_resolve_jmethod_id(jmid), comp_level, bci, THREAD); 847WB_END 848 849WB_ENTRY(jboolean, WB_EnqueueInitializerForCompilation(JNIEnv* env, jobject o, jclass klass, jint comp_level)) 850 InstanceKlass* ik = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve(klass))); 851 return WhiteBox::compile_method(ik->class_initializer(), comp_level, InvocationEntryBci, THREAD); 852WB_END 853 854WB_ENTRY(jboolean, WB_ShouldPrintAssembly(JNIEnv* env, jobject o, jobject method, jint comp_level)) 855 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 856 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 857 858 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 859 DirectiveSet* directive = DirectivesStack::getMatchingDirective(mh, CompileBroker::compiler(comp_level)); 860 bool result = directive->PrintAssemblyOption; 861 DirectivesStack::release(directive); 862 863 return result; 864WB_END 865 866WB_ENTRY(jint, WB_MatchesInline(JNIEnv* env, jobject o, jobject method, jstring pattern)) 867 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 868 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 869 870 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 871 872 ResourceMark rm; 873 const char* error_msg = NULL; 874 char* method_str = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(pattern)); 875 InlineMatcher* m = InlineMatcher::parse_inline_pattern(method_str, error_msg); 876 877 if (m == NULL) { 878 assert(error_msg != NULL, "Always have an error message"); 879 tty->print_cr("Got error: %s", error_msg); 880 return -1; // Pattern failed 881 } 882 883 // Pattern works - now check if it matches 884 int result; 885 if (m->match(mh, InlineMatcher::force_inline)) { 886 result = 2; // Force inline match 887 } else if (m->match(mh, InlineMatcher::dont_inline)) { 888 result = 1; // Dont inline match 889 } else { 890 result = 0; // No match 891 } 892 delete m; 893 return result; 894WB_END 895 896WB_ENTRY(jint, WB_MatchesMethod(JNIEnv* env, jobject o, jobject method, jstring pattern)) 897 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 898 CHECK_JNI_EXCEPTION_(env, JNI_FALSE); 899 900 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 901 902 ResourceMark rm; 903 char* method_str = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(pattern)); 904 905 const char* error_msg = NULL; 906 907 BasicMatcher* m = BasicMatcher::parse_method_pattern(method_str, error_msg); 908 if (m == NULL) { 909 assert(error_msg != NULL, "Must have error_msg"); 910 tty->print_cr("Got error: %s", error_msg); 911 return -1; 912 } 913 914 // Pattern works - now check if it matches 915 int result = m->matches(mh); 916 delete m; 917 assert(result == 0 || result == 1, "Result out of range"); 918 return result; 919WB_END 920 921static AlwaysFalseClosure always_false; 922 923WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method)) 924 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 925 CHECK_JNI_EXCEPTION(env); 926 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 927 MutexLockerEx mu(Compile_lock); 928 MethodData* mdo = mh->method_data(); 929 MethodCounters* mcs = mh->method_counters(); 930 931 if (mdo != NULL) { 932 mdo->init(); 933 ResourceMark rm; 934 int arg_count = mdo->method()->size_of_parameters(); 935 for (int i = 0; i < arg_count; i++) { 936 mdo->set_arg_modified(i, 0); 937 } 938 MutexLockerEx mu(mdo->extra_data_lock()); 939 mdo->clean_method_data(&always_false); 940 } 941 942 mh->clear_not_c1_compilable(); 943 mh->clear_not_c2_compilable(); 944 mh->clear_not_c2_osr_compilable(); 945 NOT_PRODUCT(mh->set_compiled_invocation_count(0)); 946 if (mcs != NULL) { 947 mcs->backedge_counter()->init(); 948 mcs->invocation_counter()->init(); 949 mcs->set_interpreter_invocation_count(0); 950 mcs->set_interpreter_throwout_count(0); 951 952#ifdef TIERED 953 mcs->set_rate(0.0F); 954 mh->set_prev_event_count(0); 955 mh->set_prev_time(0); 956#endif 957 } 958WB_END 959 960template <typename T> 961static bool GetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, Flag::Error (*TAt)(const char*, T*, bool, bool)) { 962 if (name == NULL) { 963 return false; 964 } 965 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 966 const char* flag_name = env->GetStringUTFChars(name, NULL); 967 CHECK_JNI_EXCEPTION_(env, false); 968 Flag::Error result = (*TAt)(flag_name, value, true, true); 969 env->ReleaseStringUTFChars(name, flag_name); 970 return (result == Flag::SUCCESS); 971} 972 973template <typename T> 974static bool SetVMFlag(JavaThread* thread, JNIEnv* env, jstring name, T* value, Flag::Error (*TAtPut)(const char*, T*, Flag::Flags)) { 975 if (name == NULL) { 976 return false; 977 } 978 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 979 const char* flag_name = env->GetStringUTFChars(name, NULL); 980 CHECK_JNI_EXCEPTION_(env, false); 981 Flag::Error result = (*TAtPut)(flag_name, value, Flag::INTERNAL); 982 env->ReleaseStringUTFChars(name, flag_name); 983 return (result == Flag::SUCCESS); 984} 985 986template <typename T> 987static jobject box(JavaThread* thread, JNIEnv* env, Symbol* name, Symbol* sig, T value) { 988 ResourceMark rm(thread); 989 jclass clazz = env->FindClass(name->as_C_string()); 990 CHECK_JNI_EXCEPTION_(env, NULL); 991 jmethodID methodID = env->GetStaticMethodID(clazz, 992 vmSymbols::valueOf_name()->as_C_string(), 993 sig->as_C_string()); 994 CHECK_JNI_EXCEPTION_(env, NULL); 995 jobject result = env->CallStaticObjectMethod(clazz, methodID, value); 996 CHECK_JNI_EXCEPTION_(env, NULL); 997 return result; 998} 999 1000static jobject booleanBox(JavaThread* thread, JNIEnv* env, jboolean value) { 1001 return box(thread, env, vmSymbols::java_lang_Boolean(), vmSymbols::Boolean_valueOf_signature(), value); 1002} 1003static jobject integerBox(JavaThread* thread, JNIEnv* env, jint value) { 1004 return box(thread, env, vmSymbols::java_lang_Integer(), vmSymbols::Integer_valueOf_signature(), value); 1005} 1006static jobject longBox(JavaThread* thread, JNIEnv* env, jlong value) { 1007 return box(thread, env, vmSymbols::java_lang_Long(), vmSymbols::Long_valueOf_signature(), value); 1008} 1009/* static jobject floatBox(JavaThread* thread, JNIEnv* env, jfloat value) { 1010 return box(thread, env, vmSymbols::java_lang_Float(), vmSymbols::Float_valueOf_signature(), value); 1011}*/ 1012static jobject doubleBox(JavaThread* thread, JNIEnv* env, jdouble value) { 1013 return box(thread, env, vmSymbols::java_lang_Double(), vmSymbols::Double_valueOf_signature(), value); 1014} 1015 1016static Flag* getVMFlag(JavaThread* thread, JNIEnv* env, jstring name) { 1017 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1018 const char* flag_name = env->GetStringUTFChars(name, NULL); 1019 CHECK_JNI_EXCEPTION_(env, NULL); 1020 Flag* result = Flag::find_flag(flag_name, strlen(flag_name), true, true); 1021 env->ReleaseStringUTFChars(name, flag_name); 1022 return result; 1023} 1024 1025WB_ENTRY(jboolean, WB_IsConstantVMFlag(JNIEnv* env, jobject o, jstring name)) 1026 Flag* flag = getVMFlag(thread, env, name); 1027 return (flag != NULL) && flag->is_constant_in_binary(); 1028WB_END 1029 1030WB_ENTRY(jboolean, WB_IsLockedVMFlag(JNIEnv* env, jobject o, jstring name)) 1031 Flag* flag = getVMFlag(thread, env, name); 1032 return (flag != NULL) && !(flag->is_unlocked() || flag->is_unlocker()); 1033WB_END 1034 1035WB_ENTRY(jobject, WB_GetBooleanVMFlag(JNIEnv* env, jobject o, jstring name)) 1036 bool result; 1037 if (GetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAt)) { 1038 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1039 return booleanBox(thread, env, result); 1040 } 1041 return NULL; 1042WB_END 1043 1044WB_ENTRY(jobject, WB_GetIntVMFlag(JNIEnv* env, jobject o, jstring name)) 1045 int result; 1046 if (GetVMFlag <int> (thread, env, name, &result, &CommandLineFlags::intAt)) { 1047 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1048 return longBox(thread, env, result); 1049 } 1050 return NULL; 1051WB_END 1052 1053WB_ENTRY(jobject, WB_GetUintVMFlag(JNIEnv* env, jobject o, jstring name)) 1054 uint result; 1055 if (GetVMFlag <uint> (thread, env, name, &result, &CommandLineFlags::uintAt)) { 1056 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1057 return longBox(thread, env, result); 1058 } 1059 return NULL; 1060WB_END 1061 1062WB_ENTRY(jobject, WB_GetIntxVMFlag(JNIEnv* env, jobject o, jstring name)) 1063 intx result; 1064 if (GetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAt)) { 1065 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1066 return longBox(thread, env, result); 1067 } 1068 return NULL; 1069WB_END 1070 1071WB_ENTRY(jobject, WB_GetUintxVMFlag(JNIEnv* env, jobject o, jstring name)) 1072 uintx result; 1073 if (GetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAt)) { 1074 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1075 return longBox(thread, env, result); 1076 } 1077 return NULL; 1078WB_END 1079 1080WB_ENTRY(jobject, WB_GetUint64VMFlag(JNIEnv* env, jobject o, jstring name)) 1081 uint64_t result; 1082 if (GetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAt)) { 1083 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1084 return longBox(thread, env, result); 1085 } 1086 return NULL; 1087WB_END 1088 1089WB_ENTRY(jobject, WB_GetSizeTVMFlag(JNIEnv* env, jobject o, jstring name)) 1090 uintx result; 1091 if (GetVMFlag <size_t> (thread, env, name, &result, &CommandLineFlags::size_tAt)) { 1092 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1093 return longBox(thread, env, result); 1094 } 1095 return NULL; 1096WB_END 1097 1098WB_ENTRY(jobject, WB_GetDoubleVMFlag(JNIEnv* env, jobject o, jstring name)) 1099 double result; 1100 if (GetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAt)) { 1101 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1102 return doubleBox(thread, env, result); 1103 } 1104 return NULL; 1105WB_END 1106 1107WB_ENTRY(jstring, WB_GetStringVMFlag(JNIEnv* env, jobject o, jstring name)) 1108 ccstr ccstrResult; 1109 if (GetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAt)) { 1110 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1111 jstring result = env->NewStringUTF(ccstrResult); 1112 CHECK_JNI_EXCEPTION_(env, NULL); 1113 return result; 1114 } 1115 return NULL; 1116WB_END 1117 1118WB_ENTRY(void, WB_SetBooleanVMFlag(JNIEnv* env, jobject o, jstring name, jboolean value)) 1119 bool result = value == JNI_TRUE ? true : false; 1120 SetVMFlag <bool> (thread, env, name, &result, &CommandLineFlags::boolAtPut); 1121WB_END 1122 1123WB_ENTRY(void, WB_SetIntVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) 1124 int result = value; 1125 SetVMFlag <int> (thread, env, name, &result, &CommandLineFlags::intAtPut); 1126WB_END 1127 1128WB_ENTRY(void, WB_SetUintVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) 1129 uint result = value; 1130 SetVMFlag <uint> (thread, env, name, &result, &CommandLineFlags::uintAtPut); 1131WB_END 1132 1133WB_ENTRY(void, WB_SetIntxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) 1134 intx result = value; 1135 SetVMFlag <intx> (thread, env, name, &result, &CommandLineFlags::intxAtPut); 1136WB_END 1137 1138WB_ENTRY(void, WB_SetUintxVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) 1139 uintx result = value; 1140 SetVMFlag <uintx> (thread, env, name, &result, &CommandLineFlags::uintxAtPut); 1141WB_END 1142 1143WB_ENTRY(void, WB_SetUint64VMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) 1144 uint64_t result = value; 1145 SetVMFlag <uint64_t> (thread, env, name, &result, &CommandLineFlags::uint64_tAtPut); 1146WB_END 1147 1148WB_ENTRY(void, WB_SetSizeTVMFlag(JNIEnv* env, jobject o, jstring name, jlong value)) 1149 size_t result = value; 1150 SetVMFlag <size_t> (thread, env, name, &result, &CommandLineFlags::size_tAtPut); 1151WB_END 1152 1153WB_ENTRY(void, WB_SetDoubleVMFlag(JNIEnv* env, jobject o, jstring name, jdouble value)) 1154 double result = value; 1155 SetVMFlag <double> (thread, env, name, &result, &CommandLineFlags::doubleAtPut); 1156WB_END 1157 1158WB_ENTRY(void, WB_SetStringVMFlag(JNIEnv* env, jobject o, jstring name, jstring value)) 1159 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1160 const char* ccstrValue; 1161 if (value == NULL) { 1162 ccstrValue = NULL; 1163 } 1164 else { 1165 ccstrValue = env->GetStringUTFChars(value, NULL); 1166 CHECK_JNI_EXCEPTION(env); 1167 } 1168 ccstr ccstrResult = ccstrValue; 1169 bool needFree; 1170 { 1171 ThreadInVMfromNative ttvfn(thread); // back to VM 1172 needFree = SetVMFlag <ccstr> (thread, env, name, &ccstrResult, &CommandLineFlags::ccstrAtPut); 1173 } 1174 if (value != NULL) { 1175 env->ReleaseStringUTFChars(value, ccstrValue); 1176 } 1177 if (needFree) { 1178 FREE_C_HEAP_ARRAY(char, ccstrResult); 1179 } 1180WB_END 1181 1182WB_ENTRY(void, WB_LockCompilation(JNIEnv* env, jobject o, jlong timeout)) 1183 WhiteBox::compilation_locked = true; 1184WB_END 1185 1186WB_ENTRY(void, WB_UnlockCompilation(JNIEnv* env, jobject o)) 1187 MonitorLockerEx mo(Compilation_lock, Mutex::_no_safepoint_check_flag); 1188 WhiteBox::compilation_locked = false; 1189 mo.notify_all(); 1190WB_END 1191 1192WB_ENTRY(void, WB_ForceNMethodSweep(JNIEnv* env, jobject o)) 1193 // Force a code cache sweep and block until it finished 1194 NMethodSweeper::force_sweep(); 1195WB_END 1196 1197WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString)) 1198 ResourceMark rm(THREAD); 1199 int len; 1200 jchar* name = java_lang_String::as_unicode_string(JNIHandles::resolve(javaString), len, CHECK_false); 1201 return (StringTable::lookup(name, len) != NULL); 1202WB_END 1203 1204WB_ENTRY(void, WB_FullGC(JNIEnv* env, jobject o)) 1205 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(true); 1206 Universe::heap()->collect(GCCause::_wb_full_gc); 1207#if INCLUDE_ALL_GCS 1208 if (UseG1GC) { 1209 // Needs to be cleared explicitly for G1 1210 Universe::heap()->collector_policy()->set_should_clear_all_soft_refs(false); 1211 } 1212#endif // INCLUDE_ALL_GCS 1213WB_END 1214 1215WB_ENTRY(void, WB_YoungGC(JNIEnv* env, jobject o)) 1216 Universe::heap()->collect(GCCause::_wb_young_gc); 1217WB_END 1218 1219WB_ENTRY(void, WB_ReadReservedMemory(JNIEnv* env, jobject o)) 1220 // static+volatile in order to force the read to happen 1221 // (not be eliminated by the compiler) 1222 static char c; 1223 static volatile char* p; 1224 1225 p = os::reserve_memory(os::vm_allocation_granularity(), NULL, 0); 1226 if (p == NULL) { 1227 THROW_MSG(vmSymbols::java_lang_OutOfMemoryError(), "Failed to reserve memory"); 1228 } 1229 1230 c = *p; 1231WB_END 1232 1233WB_ENTRY(jstring, WB_GetCPUFeatures(JNIEnv* env, jobject o)) 1234 const char* features = VM_Version::features_string(); 1235 ThreadToNativeFromVM ttn(thread); 1236 jstring features_string = env->NewStringUTF(features); 1237 1238 CHECK_JNI_EXCEPTION_(env, NULL); 1239 1240 return features_string; 1241WB_END 1242 1243int WhiteBox::get_blob_type(const CodeBlob* code) { 1244 guarantee(WhiteBoxAPI, "internal testing API :: WhiteBox has to be enabled"); 1245 if (code->is_aot()) { 1246 return -1; 1247 } 1248 return CodeCache::get_code_heap(code)->code_blob_type(); 1249} 1250 1251CodeHeap* WhiteBox::get_code_heap(int blob_type) { 1252 guarantee(WhiteBoxAPI, "internal testing API :: WhiteBox has to be enabled"); 1253 return CodeCache::get_code_heap(blob_type); 1254} 1255 1256struct CodeBlobStub { 1257 CodeBlobStub(const CodeBlob* blob) : 1258 name(os::strdup(blob->name())), 1259 size(blob->size()), 1260 blob_type(WhiteBox::get_blob_type(blob)), 1261 address((jlong) blob) { } 1262 ~CodeBlobStub() { os::free((void*) name); } 1263 const char* const name; 1264 const jint size; 1265 const jint blob_type; 1266 const jlong address; 1267}; 1268 1269static jobjectArray codeBlob2objectArray(JavaThread* thread, JNIEnv* env, CodeBlobStub* cb) { 1270 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string()); 1271 CHECK_JNI_EXCEPTION_(env, NULL); 1272 jobjectArray result = env->NewObjectArray(4, clazz, NULL); 1273 1274 jstring name = env->NewStringUTF(cb->name); 1275 CHECK_JNI_EXCEPTION_(env, NULL); 1276 env->SetObjectArrayElement(result, 0, name); 1277 1278 jobject obj = integerBox(thread, env, cb->size); 1279 CHECK_JNI_EXCEPTION_(env, NULL); 1280 env->SetObjectArrayElement(result, 1, obj); 1281 1282 obj = integerBox(thread, env, cb->blob_type); 1283 CHECK_JNI_EXCEPTION_(env, NULL); 1284 env->SetObjectArrayElement(result, 2, obj); 1285 1286 obj = longBox(thread, env, cb->address); 1287 CHECK_JNI_EXCEPTION_(env, NULL); 1288 env->SetObjectArrayElement(result, 3, obj); 1289 1290 return result; 1291} 1292 1293WB_ENTRY(jobjectArray, WB_GetNMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr)) 1294 ResourceMark rm(THREAD); 1295 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 1296 CHECK_JNI_EXCEPTION_(env, NULL); 1297 methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid)); 1298 CompiledMethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code(); 1299 jobjectArray result = NULL; 1300 if (code == NULL) { 1301 return result; 1302 } 1303 int comp_level = code->comp_level(); 1304 int insts_size = comp_level == CompLevel_aot ? code->code_end() - code->code_begin() : code->insts_size(); 1305 1306 ThreadToNativeFromVM ttn(thread); 1307 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string()); 1308 CHECK_JNI_EXCEPTION_(env, NULL); 1309 result = env->NewObjectArray(5, clazz, NULL); 1310 if (result == NULL) { 1311 return result; 1312 } 1313 1314 CodeBlobStub stub(code); 1315 jobjectArray codeBlob = codeBlob2objectArray(thread, env, &stub); 1316 CHECK_JNI_EXCEPTION_(env, NULL); 1317 env->SetObjectArrayElement(result, 0, codeBlob); 1318 1319 jobject level = integerBox(thread, env, comp_level); 1320 CHECK_JNI_EXCEPTION_(env, NULL); 1321 env->SetObjectArrayElement(result, 1, level); 1322 1323 jbyteArray insts = env->NewByteArray(insts_size); 1324 CHECK_JNI_EXCEPTION_(env, NULL); 1325 env->SetByteArrayRegion(insts, 0, insts_size, (jbyte*) code->insts_begin()); 1326 env->SetObjectArrayElement(result, 2, insts); 1327 1328 jobject id = integerBox(thread, env, code->compile_id()); 1329 CHECK_JNI_EXCEPTION_(env, NULL); 1330 env->SetObjectArrayElement(result, 3, id); 1331 1332 jobject entry_point = longBox(thread, env, (jlong) code->entry_point()); 1333 CHECK_JNI_EXCEPTION_(env, NULL); 1334 env->SetObjectArrayElement(result, 4, entry_point); 1335 1336 return result; 1337WB_END 1338 1339CodeBlob* WhiteBox::allocate_code_blob(int size, int blob_type) { 1340 guarantee(WhiteBoxAPI, "internal testing API :: WhiteBox has to be enabled"); 1341 BufferBlob* blob; 1342 int full_size = CodeBlob::align_code_offset(sizeof(BufferBlob)); 1343 if (full_size < size) { 1344 full_size += align_up(size - full_size, oopSize); 1345 } 1346 { 1347 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 1348 blob = (BufferBlob*) CodeCache::allocate(full_size, blob_type); 1349 ::new (blob) BufferBlob("WB::DummyBlob", full_size); 1350 } 1351 // Track memory usage statistic after releasing CodeCache_lock 1352 MemoryService::track_code_cache_memory_usage(); 1353 return blob; 1354} 1355 1356WB_ENTRY(jlong, WB_AllocateCodeBlob(JNIEnv* env, jobject o, jint size, jint blob_type)) 1357 if (size < 0) { 1358 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 1359 err_msg("WB_AllocateCodeBlob: size is negative: " INT32_FORMAT, size)); 1360 } 1361 return (jlong) WhiteBox::allocate_code_blob(size, blob_type); 1362WB_END 1363 1364WB_ENTRY(void, WB_FreeCodeBlob(JNIEnv* env, jobject o, jlong addr)) 1365 if (addr == 0) { 1366 return; 1367 } 1368 BufferBlob::free((BufferBlob*) addr); 1369WB_END 1370 1371WB_ENTRY(jobjectArray, WB_GetCodeHeapEntries(JNIEnv* env, jobject o, jint blob_type)) 1372 ResourceMark rm; 1373 GrowableArray<CodeBlobStub*> blobs; 1374 { 1375 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 1376 CodeHeap* heap = WhiteBox::get_code_heap(blob_type); 1377 if (heap == NULL) { 1378 return NULL; 1379 } 1380 for (CodeBlob* cb = (CodeBlob*) heap->first(); 1381 cb != NULL; cb = (CodeBlob*) heap->next(cb)) { 1382 CodeBlobStub* stub = NEW_RESOURCE_OBJ(CodeBlobStub); 1383 new (stub) CodeBlobStub(cb); 1384 blobs.append(stub); 1385 } 1386 } 1387 if (blobs.length() == 0) { 1388 return NULL; 1389 } 1390 ThreadToNativeFromVM ttn(thread); 1391 jobjectArray result = NULL; 1392 jclass clazz = env->FindClass(vmSymbols::java_lang_Object()->as_C_string()); 1393 CHECK_JNI_EXCEPTION_(env, NULL); 1394 result = env->NewObjectArray(blobs.length(), clazz, NULL); 1395 CHECK_JNI_EXCEPTION_(env, NULL); 1396 if (result == NULL) { 1397 return result; 1398 } 1399 int i = 0; 1400 for (GrowableArrayIterator<CodeBlobStub*> it = blobs.begin(); 1401 it != blobs.end(); ++it) { 1402 jobjectArray obj = codeBlob2objectArray(thread, env, *it); 1403 CHECK_JNI_EXCEPTION_(env, NULL); 1404 env->SetObjectArrayElement(result, i, obj); 1405 CHECK_JNI_EXCEPTION_(env, NULL); 1406 ++i; 1407 } 1408 return result; 1409WB_END 1410 1411WB_ENTRY(jint, WB_GetCompilationActivityMode(JNIEnv* env, jobject o)) 1412 return CompileBroker::get_compilation_activity_mode(); 1413WB_END 1414 1415WB_ENTRY(jobjectArray, WB_GetCodeBlob(JNIEnv* env, jobject o, jlong addr)) 1416 if (addr == 0) { 1417 THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), 1418 "WB_GetCodeBlob: addr is null"); 1419 } 1420 ThreadToNativeFromVM ttn(thread); 1421 CodeBlobStub stub((CodeBlob*) addr); 1422 return codeBlob2objectArray(thread, env, &stub); 1423WB_END 1424 1425WB_ENTRY(jlong, WB_GetMethodData(JNIEnv* env, jobject wv, jobject method)) 1426 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 1427 CHECK_JNI_EXCEPTION_(env, 0); 1428 methodHandle mh(thread, Method::checked_resolve_jmethod_id(jmid)); 1429 return (jlong) mh->method_data(); 1430WB_END 1431 1432WB_ENTRY(jlong, WB_GetThreadStackSize(JNIEnv* env, jobject o)) 1433 return (jlong) Thread::current()->stack_size(); 1434WB_END 1435 1436WB_ENTRY(jlong, WB_GetThreadRemainingStackSize(JNIEnv* env, jobject o)) 1437 JavaThread* t = JavaThread::current(); 1438 return (jlong) t->stack_available(os::current_stack_pointer()) - (jlong)JavaThread::stack_shadow_zone_size(); 1439WB_END 1440 1441 1442int WhiteBox::array_bytes_to_length(size_t bytes) { 1443 return Array<u1>::bytes_to_length(bytes); 1444} 1445 1446WB_ENTRY(jlong, WB_AllocateMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong size)) 1447 if (size < 0) { 1448 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 1449 err_msg("WB_AllocateMetaspace: size is negative: " JLONG_FORMAT, size)); 1450 } 1451 1452 oop class_loader_oop = JNIHandles::resolve(class_loader); 1453 ClassLoaderData* cld = class_loader_oop != NULL 1454 ? java_lang_ClassLoader::loader_data(class_loader_oop) 1455 : ClassLoaderData::the_null_class_loader_data(); 1456 1457 void* metadata = MetadataFactory::new_array<u1>(cld, WhiteBox::array_bytes_to_length((size_t)size), thread); 1458 1459 return (jlong)(uintptr_t)metadata; 1460WB_END 1461 1462WB_ENTRY(void, WB_FreeMetaspace(JNIEnv* env, jobject wb, jobject class_loader, jlong addr, jlong size)) 1463 oop class_loader_oop = JNIHandles::resolve(class_loader); 1464 ClassLoaderData* cld = class_loader_oop != NULL 1465 ? java_lang_ClassLoader::loader_data(class_loader_oop) 1466 : ClassLoaderData::the_null_class_loader_data(); 1467 1468 MetadataFactory::free_array(cld, (Array<u1>*)(uintptr_t)addr); 1469WB_END 1470 1471WB_ENTRY(void, WB_DefineModule(JNIEnv* env, jobject o, jobject module, jboolean is_open, 1472 jstring version, jstring location, jobjectArray packages)) 1473 ResourceMark rm(THREAD); 1474 1475 objArrayOop packages_oop = objArrayOop(JNIHandles::resolve(packages)); 1476 objArrayHandle packages_h(THREAD, packages_oop); 1477 int num_packages = (packages_h == NULL ? 0 : packages_h->length()); 1478 1479 char** pkgs = NULL; 1480 if (num_packages > 0) { 1481 pkgs = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char*, num_packages); 1482 for (int x = 0; x < num_packages; x++) { 1483 oop pkg_str = packages_h->obj_at(x); 1484 if (pkg_str == NULL || !pkg_str->is_a(SystemDictionary::String_klass())) { 1485 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 1486 err_msg("Bad package name")); 1487 } 1488 pkgs[x] = java_lang_String::as_utf8_string(pkg_str); 1489 } 1490 } 1491 Modules::define_module(module, is_open, version, location, (const char* const*)pkgs, num_packages, CHECK); 1492WB_END 1493 1494WB_ENTRY(void, WB_AddModuleExports(JNIEnv* env, jobject o, jobject from_module, jstring package, jobject to_module)) 1495 ResourceMark rm(THREAD); 1496 char* package_name = NULL; 1497 if (package != NULL) { 1498 package_name = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(package)); 1499 } 1500 Modules::add_module_exports_qualified(from_module, package_name, to_module, CHECK); 1501WB_END 1502 1503WB_ENTRY(void, WB_AddModuleExportsToAllUnnamed(JNIEnv* env, jobject o, jclass module, jstring package)) 1504 ResourceMark rm(THREAD); 1505 char* package_name = NULL; 1506 if (package != NULL) { 1507 package_name = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(package)); 1508 } 1509 Modules::add_module_exports_to_all_unnamed(module, package_name, CHECK); 1510WB_END 1511 1512WB_ENTRY(void, WB_AddModuleExportsToAll(JNIEnv* env, jobject o, jclass module, jstring package)) 1513 ResourceMark rm(THREAD); 1514 char* package_name = NULL; 1515 if (package != NULL) { 1516 package_name = java_lang_String::as_utf8_string(JNIHandles::resolve_non_null(package)); 1517 } 1518 Modules::add_module_exports(module, package_name, NULL, CHECK); 1519WB_END 1520 1521WB_ENTRY(void, WB_AddReadsModule(JNIEnv* env, jobject o, jobject from_module, jobject source_module)) 1522 Modules::add_reads_module(from_module, source_module, CHECK); 1523WB_END 1524 1525WB_ENTRY(jlong, WB_IncMetaspaceCapacityUntilGC(JNIEnv* env, jobject wb, jlong inc)) 1526 if (inc < 0) { 1527 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 1528 err_msg("WB_IncMetaspaceCapacityUntilGC: inc is negative: " JLONG_FORMAT, inc)); 1529 } 1530 1531 jlong max_size_t = (jlong) ((size_t) -1); 1532 if (inc > max_size_t) { 1533 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 1534 err_msg("WB_IncMetaspaceCapacityUntilGC: inc does not fit in size_t: " JLONG_FORMAT, inc)); 1535 } 1536 1537 size_t new_cap_until_GC = 0; 1538 size_t aligned_inc = align_down((size_t) inc, Metaspace::commit_alignment()); 1539 bool success = MetaspaceGC::inc_capacity_until_GC(aligned_inc, &new_cap_until_GC); 1540 if (!success) { 1541 THROW_MSG_0(vmSymbols::java_lang_IllegalStateException(), 1542 "WB_IncMetaspaceCapacityUntilGC: could not increase capacity until GC " 1543 "due to contention with another thread"); 1544 } 1545 return (jlong) new_cap_until_GC; 1546WB_END 1547 1548WB_ENTRY(jlong, WB_MetaspaceCapacityUntilGC(JNIEnv* env, jobject wb)) 1549 return (jlong) MetaspaceGC::capacity_until_GC(); 1550WB_END 1551 1552WB_ENTRY(jboolean, WB_MetaspaceShouldConcurrentCollect(JNIEnv* env, jobject wb)) 1553 return MetaspaceGC::should_concurrent_collect(); 1554WB_END 1555 1556WB_ENTRY(jlong, WB_MetaspaceReserveAlignment(JNIEnv* env, jobject wb)) 1557 return (jlong)Metaspace::reserve_alignment(); 1558WB_END 1559 1560WB_ENTRY(void, WB_AssertMatchingSafepointCalls(JNIEnv* env, jobject o, jboolean mutexSafepointValue, jboolean attemptedNoSafepointValue)) 1561 Monitor::SafepointCheckRequired sfpt_check_required = mutexSafepointValue ? 1562 Monitor::_safepoint_check_always : 1563 Monitor::_safepoint_check_never; 1564 MutexLockerEx ml(new Mutex(Mutex::leaf, "SFPT_Test_lock", true, sfpt_check_required), 1565 attemptedNoSafepointValue == JNI_TRUE); 1566WB_END 1567 1568WB_ENTRY(jboolean, WB_IsMonitorInflated(JNIEnv* env, jobject wb, jobject obj)) 1569 oop obj_oop = JNIHandles::resolve(obj); 1570 return (jboolean) obj_oop->mark()->has_monitor(); 1571WB_END 1572 1573WB_ENTRY(void, WB_ForceSafepoint(JNIEnv* env, jobject wb)) 1574 VM_ForceSafepoint force_safepoint_op; 1575 VMThread::execute(&force_safepoint_op); 1576WB_END 1577 1578WB_ENTRY(jlong, WB_GetConstantPool(JNIEnv* env, jobject wb, jclass klass)) 1579 InstanceKlass* ik = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve(klass))); 1580 return (jlong) ik->constants(); 1581WB_END 1582 1583WB_ENTRY(jint, WB_GetConstantPoolCacheIndexTag(JNIEnv* env, jobject wb)) 1584 return ConstantPool::CPCACHE_INDEX_TAG; 1585WB_END 1586 1587WB_ENTRY(jint, WB_GetConstantPoolCacheLength(JNIEnv* env, jobject wb, jclass klass)) 1588 InstanceKlass* ik = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve(klass))); 1589 ConstantPool* cp = ik->constants(); 1590 if (cp->cache() == NULL) { 1591 return -1; 1592 } 1593 return cp->cache()->length(); 1594WB_END 1595 1596WB_ENTRY(jint, WB_ConstantPoolRemapInstructionOperandFromCache(JNIEnv* env, jobject wb, jclass klass, jint index)) 1597 InstanceKlass* ik = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve(klass))); 1598 ConstantPool* cp = ik->constants(); 1599 if (cp->cache() == NULL) { 1600 THROW_MSG_0(vmSymbols::java_lang_IllegalStateException(), "Constant pool does not have a cache"); 1601 } 1602 jint cpci = index; 1603 jint cpciTag = ConstantPool::CPCACHE_INDEX_TAG; 1604 if (cpciTag > cpci || cpci >= cp->cache()->length() + cpciTag) { 1605 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), "Constant pool cache index is out of range"); 1606 } 1607 jint cpi = cp->remap_instruction_operand_from_cache(cpci); 1608 return cpi; 1609WB_END 1610 1611WB_ENTRY(jint, WB_ConstantPoolEncodeIndyIndex(JNIEnv* env, jobject wb, jint index)) 1612 return ConstantPool::encode_invokedynamic_index(index); 1613WB_END 1614 1615WB_ENTRY(void, WB_ClearInlineCaches(JNIEnv* env, jobject wb, jboolean preserve_static_stubs)) 1616 VM_ClearICs clear_ics(preserve_static_stubs == JNI_TRUE); 1617 VMThread::execute(&clear_ics); 1618WB_END 1619 1620template <typename T> 1621static bool GetMethodOption(JavaThread* thread, JNIEnv* env, jobject method, jstring name, T* value) { 1622 assert(value != NULL, "sanity"); 1623 if (method == NULL || name == NULL) { 1624 return false; 1625 } 1626 jmethodID jmid = reflected_method_to_jmid(thread, env, method); 1627 CHECK_JNI_EXCEPTION_(env, false); 1628 methodHandle mh(thread, Method::checked_resolve_jmethod_id(jmid)); 1629 // can't be in VM when we call JNI 1630 ThreadToNativeFromVM ttnfv(thread); 1631 const char* flag_name = env->GetStringUTFChars(name, NULL); 1632 CHECK_JNI_EXCEPTION_(env, false); 1633 bool result = CompilerOracle::has_option_value(mh, flag_name, *value); 1634 env->ReleaseStringUTFChars(name, flag_name); 1635 return result; 1636} 1637 1638WB_ENTRY(jobject, WB_GetMethodBooleaneOption(JNIEnv* env, jobject wb, jobject method, jstring name)) 1639 bool result; 1640 if (GetMethodOption<bool> (thread, env, method, name, &result)) { 1641 // can't be in VM when we call JNI 1642 ThreadToNativeFromVM ttnfv(thread); 1643 return booleanBox(thread, env, result); 1644 } 1645 return NULL; 1646WB_END 1647 1648WB_ENTRY(jobject, WB_GetMethodIntxOption(JNIEnv* env, jobject wb, jobject method, jstring name)) 1649 intx result; 1650 if (GetMethodOption <intx> (thread, env, method, name, &result)) { 1651 // can't be in VM when we call JNI 1652 ThreadToNativeFromVM ttnfv(thread); 1653 return longBox(thread, env, result); 1654 } 1655 return NULL; 1656WB_END 1657 1658WB_ENTRY(jobject, WB_GetMethodUintxOption(JNIEnv* env, jobject wb, jobject method, jstring name)) 1659 uintx result; 1660 if (GetMethodOption <uintx> (thread, env, method, name, &result)) { 1661 // can't be in VM when we call JNI 1662 ThreadToNativeFromVM ttnfv(thread); 1663 return longBox(thread, env, result); 1664 } 1665 return NULL; 1666WB_END 1667 1668WB_ENTRY(jobject, WB_GetMethodDoubleOption(JNIEnv* env, jobject wb, jobject method, jstring name)) 1669 double result; 1670 if (GetMethodOption <double> (thread, env, method, name, &result)) { 1671 // can't be in VM when we call JNI 1672 ThreadToNativeFromVM ttnfv(thread); 1673 return doubleBox(thread, env, result); 1674 } 1675 return NULL; 1676WB_END 1677 1678WB_ENTRY(jobject, WB_GetMethodStringOption(JNIEnv* env, jobject wb, jobject method, jstring name)) 1679 ccstr ccstrResult; 1680 if (GetMethodOption <ccstr> (thread, env, method, name, &ccstrResult)) { 1681 // can't be in VM when we call JNI 1682 ThreadToNativeFromVM ttnfv(thread); 1683 jstring result = env->NewStringUTF(ccstrResult); 1684 CHECK_JNI_EXCEPTION_(env, NULL); 1685 return result; 1686 } 1687 return NULL; 1688WB_END 1689 1690WB_ENTRY(jboolean, WB_IsShared(JNIEnv* env, jobject wb, jobject obj)) 1691 oop obj_oop = JNIHandles::resolve(obj); 1692 return oopDesc::is_archive_object(obj_oop); 1693WB_END 1694 1695WB_ENTRY(jboolean, WB_IsSharedClass(JNIEnv* env, jobject wb, jclass clazz)) 1696 return (jboolean)MetaspaceShared::is_in_shared_space(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); 1697WB_END 1698 1699WB_ENTRY(jboolean, WB_AreSharedStringsIgnored(JNIEnv* env)) 1700 return !StringTable::shared_string_mapped(); 1701WB_END 1702 1703WB_ENTRY(jobject, WB_GetResolvedReferences(JNIEnv* env, jobject wb, jclass clazz)) 1704 Klass *k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)); 1705 if (k->is_instance_klass()) { 1706 InstanceKlass *ik = InstanceKlass::cast(k); 1707 ConstantPool *cp = ik->constants(); 1708 objArrayOop refs = cp->resolved_references(); 1709 return (jobject)JNIHandles::make_local(env, refs); 1710 } else { 1711 return NULL; 1712 } 1713WB_END 1714 1715WB_ENTRY(jboolean, WB_IsCDSIncludedInVmBuild(JNIEnv* env)) 1716#if INCLUDE_CDS 1717 return true; 1718#else 1719 return false; 1720#endif 1721WB_END 1722 1723//Some convenience methods to deal with objects from java 1724int WhiteBox::offset_for_field(const char* field_name, oop object, 1725 Symbol* signature_symbol) { 1726 assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid"); 1727 Thread* THREAD = Thread::current(); 1728 1729 //Get the class of our object 1730 Klass* arg_klass = object->klass(); 1731 //Turn it into an instance-klass 1732 InstanceKlass* ik = InstanceKlass::cast(arg_klass); 1733 1734 //Create symbols to look for in the class 1735 TempNewSymbol name_symbol = SymbolTable::lookup(field_name, (int) strlen(field_name), 1736 THREAD); 1737 1738 //To be filled in with an offset of the field we're looking for 1739 fieldDescriptor fd; 1740 1741 Klass* res = ik->find_field(name_symbol, signature_symbol, &fd); 1742 if (res == NULL) { 1743 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), 1744 name_symbol->as_C_string()); 1745 vm_exit_during_initialization("Invalid layout of preloaded class: use -Xlog:class+load=info to see the origin of the problem class"); 1746 } 1747 1748 //fetch the field at the offset we've found 1749 int dest_offset = fd.offset(); 1750 1751 return dest_offset; 1752} 1753 1754 1755const char* WhiteBox::lookup_jstring(const char* field_name, oop object) { 1756 int offset = offset_for_field(field_name, object, 1757 vmSymbols::string_signature()); 1758 oop string = object->obj_field(offset); 1759 if (string == NULL) { 1760 return NULL; 1761 } 1762 const char* ret = java_lang_String::as_utf8_string(string); 1763 return ret; 1764} 1765 1766bool WhiteBox::lookup_bool(const char* field_name, oop object) { 1767 int offset = 1768 offset_for_field(field_name, object, vmSymbols::bool_signature()); 1769 bool ret = (object->bool_field(offset) == JNI_TRUE); 1770 return ret; 1771} 1772 1773void WhiteBox::register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread, JNINativeMethod* method_array, int method_count) { 1774 ResourceMark rm; 1775 ThreadToNativeFromVM ttnfv(thread); // can't be in VM when we call JNI 1776 1777 // one by one registration natives for exception catching 1778 jclass no_such_method_error_klass = env->FindClass(vmSymbols::java_lang_NoSuchMethodError()->as_C_string()); 1779 CHECK_JNI_EXCEPTION(env); 1780 for (int i = 0, n = method_count; i < n; ++i) { 1781 // Skip dummy entries 1782 if (method_array[i].fnPtr == NULL) continue; 1783 if (env->RegisterNatives(wbclass, &method_array[i], 1) != 0) { 1784 jthrowable throwable_obj = env->ExceptionOccurred(); 1785 if (throwable_obj != NULL) { 1786 env->ExceptionClear(); 1787 if (env->IsInstanceOf(throwable_obj, no_such_method_error_klass)) { 1788 // NoSuchMethodError is thrown when a method can't be found or a method is not native. 1789 // Ignoring the exception since it is not preventing use of other WhiteBox methods. 1790 tty->print_cr("Warning: 'NoSuchMethodError' on register of sun.hotspot.WhiteBox::%s%s", 1791 method_array[i].name, method_array[i].signature); 1792 } 1793 } else { 1794 // Registration failed unexpectedly. 1795 tty->print_cr("Warning: unexpected error on register of sun.hotspot.WhiteBox::%s%s. All methods will be unregistered", 1796 method_array[i].name, method_array[i].signature); 1797 env->UnregisterNatives(wbclass); 1798 break; 1799 } 1800 } 1801 } 1802} 1803 1804WB_ENTRY(jint, WB_AddCompilerDirective(JNIEnv* env, jobject o, jstring compDirect)) 1805 // can't be in VM when we call JNI 1806 ThreadToNativeFromVM ttnfv(thread); 1807 const char* dir = env->GetStringUTFChars(compDirect, NULL); 1808 CHECK_JNI_EXCEPTION_(env, 0); 1809 int ret; 1810 { 1811 ThreadInVMfromNative ttvfn(thread); // back to VM 1812 ret = DirectivesParser::parse_string(dir, tty); 1813 } 1814 env->ReleaseStringUTFChars(compDirect, dir); 1815 // -1 for error parsing directive. Return 0 as number of directives added. 1816 if (ret == -1) { 1817 ret = 0; 1818 } 1819 return (jint) ret; 1820WB_END 1821 1822WB_ENTRY(void, WB_RemoveCompilerDirective(JNIEnv* env, jobject o, jint count)) 1823 DirectivesStack::pop(count); 1824WB_END 1825 1826#define CC (char*) 1827 1828static JNINativeMethod methods[] = { 1829 {CC"getObjectAddress0", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectAddress }, 1830 {CC"getObjectSize0", CC"(Ljava/lang/Object;)J", (void*)&WB_GetObjectSize }, 1831 {CC"isObjectInOldGen0", CC"(Ljava/lang/Object;)Z", (void*)&WB_isObjectInOldGen }, 1832 {CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize }, 1833 {CC"getVMPageSize", CC"()I", (void*)&WB_GetVMPageSize }, 1834 {CC"getVMAllocationGranularity", CC"()J", (void*)&WB_GetVMAllocationGranularity }, 1835 {CC"getVMLargePageSize", CC"()J", (void*)&WB_GetVMLargePageSize}, 1836 {CC"getHeapSpaceAlignment", CC"()J", (void*)&WB_GetHeapSpaceAlignment}, 1837 {CC"getHeapAlignment", CC"()J", (void*)&WB_GetHeapAlignment}, 1838 {CC"isClassAlive0", CC"(Ljava/lang/String;)Z", (void*)&WB_IsClassAlive }, 1839 {CC"parseCommandLine0", 1840 CC"(Ljava/lang/String;C[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;", 1841 (void*) &WB_ParseCommandLine 1842 }, 1843 {CC"addToBootstrapClassLoaderSearch0", CC"(Ljava/lang/String;)V", 1844 (void*)&WB_AddToBootstrapClassLoaderSearch}, 1845 {CC"addToSystemClassLoaderSearch0", CC"(Ljava/lang/String;)V", 1846 (void*)&WB_AddToSystemClassLoaderSearch}, 1847 {CC"getCompressedOopsMaxHeapSize", CC"()J", 1848 (void*)&WB_GetCompressedOopsMaxHeapSize}, 1849 {CC"printHeapSizes", CC"()V", (void*)&WB_PrintHeapSizes }, 1850 {CC"runMemoryUnitTests", CC"()V", (void*)&WB_RunMemoryUnitTests}, 1851 {CC"readFromNoaccessArea",CC"()V", (void*)&WB_ReadFromNoaccessArea}, 1852 {CC"stressVirtualSpaceResize",CC"(JJJ)I", (void*)&WB_StressVirtualSpaceResize}, 1853#if INCLUDE_ALL_GCS 1854 {CC"g1InConcurrentMark", CC"()Z", (void*)&WB_G1InConcurrentMark}, 1855 {CC"g1IsHumongous0", CC"(Ljava/lang/Object;)Z", (void*)&WB_G1IsHumongous }, 1856 {CC"g1BelongsToHumongousRegion0", CC"(J)Z", (void*)&WB_G1BelongsToHumongousRegion}, 1857 {CC"g1BelongsToFreeRegion0", CC"(J)Z", (void*)&WB_G1BelongsToFreeRegion}, 1858 {CC"g1NumMaxRegions", CC"()J", (void*)&WB_G1NumMaxRegions }, 1859 {CC"g1NumFreeRegions", CC"()J", (void*)&WB_G1NumFreeRegions }, 1860 {CC"g1RegionSize", CC"()I", (void*)&WB_G1RegionSize }, 1861 {CC"g1StartConcMarkCycle", CC"()Z", (void*)&WB_G1StartMarkCycle }, 1862 {CC"g1AuxiliaryMemoryUsage", CC"()Ljava/lang/management/MemoryUsage;", 1863 (void*)&WB_G1AuxiliaryMemoryUsage }, 1864 {CC"psVirtualSpaceAlignment",CC"()J", (void*)&WB_PSVirtualSpaceAlignment}, 1865 {CC"psHeapGenerationAlignment",CC"()J", (void*)&WB_PSHeapGenerationAlignment}, 1866 {CC"g1GetMixedGCInfo", CC"(I)[J", (void*)&WB_G1GetMixedGCInfo }, 1867#endif // INCLUDE_ALL_GCS 1868#if INCLUDE_NMT 1869 {CC"NMTMalloc", CC"(J)J", (void*)&WB_NMTMalloc }, 1870 {CC"NMTMallocWithPseudoStack", CC"(JI)J", (void*)&WB_NMTMallocWithPseudoStack}, 1871 {CC"NMTFree", CC"(J)V", (void*)&WB_NMTFree }, 1872 {CC"NMTReserveMemory", CC"(J)J", (void*)&WB_NMTReserveMemory }, 1873 {CC"NMTCommitMemory", CC"(JJ)V", (void*)&WB_NMTCommitMemory }, 1874 {CC"NMTUncommitMemory", CC"(JJ)V", (void*)&WB_NMTUncommitMemory }, 1875 {CC"NMTReleaseMemory", CC"(JJ)V", (void*)&WB_NMTReleaseMemory }, 1876 {CC"NMTChangeTrackingLevel", CC"()Z", (void*)&WB_NMTChangeTrackingLevel}, 1877 {CC"NMTGetHashSize", CC"()I", (void*)&WB_NMTGetHashSize }, 1878#endif // INCLUDE_NMT 1879 {CC"deoptimizeFrames", CC"(Z)I", (void*)&WB_DeoptimizeFrames }, 1880 {CC"deoptimizeAll", CC"()V", (void*)&WB_DeoptimizeAll }, 1881 {CC"deoptimizeMethod0", CC"(Ljava/lang/reflect/Executable;Z)I", 1882 (void*)&WB_DeoptimizeMethod }, 1883 {CC"isMethodCompiled0", CC"(Ljava/lang/reflect/Executable;Z)Z", 1884 (void*)&WB_IsMethodCompiled }, 1885 {CC"isMethodCompilable0", CC"(Ljava/lang/reflect/Executable;IZ)Z", 1886 (void*)&WB_IsMethodCompilable}, 1887 {CC"isMethodQueuedForCompilation0", 1888 CC"(Ljava/lang/reflect/Executable;)Z", (void*)&WB_IsMethodQueuedForCompilation}, 1889 {CC"isIntrinsicAvailable0", 1890 CC"(Ljava/lang/reflect/Executable;Ljava/lang/reflect/Executable;I)Z", 1891 (void*)&WB_IsIntrinsicAvailable}, 1892 {CC"makeMethodNotCompilable0", 1893 CC"(Ljava/lang/reflect/Executable;IZ)V", (void*)&WB_MakeMethodNotCompilable}, 1894 {CC"testSetDontInlineMethod0", 1895 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetDontInlineMethod}, 1896 {CC"getMethodCompilationLevel0", 1897 CC"(Ljava/lang/reflect/Executable;Z)I", (void*)&WB_GetMethodCompilationLevel}, 1898 {CC"getMethodEntryBci0", 1899 CC"(Ljava/lang/reflect/Executable;)I", (void*)&WB_GetMethodEntryBci}, 1900 {CC"getCompileQueueSize", 1901 CC"(I)I", (void*)&WB_GetCompileQueueSize}, 1902 {CC"testSetForceInlineMethod0", 1903 CC"(Ljava/lang/reflect/Executable;Z)Z", (void*)&WB_TestSetForceInlineMethod}, 1904 {CC"enqueueMethodForCompilation0", 1905 CC"(Ljava/lang/reflect/Executable;II)Z", (void*)&WB_EnqueueMethodForCompilation}, 1906 {CC"enqueueInitializerForCompilation0", 1907 CC"(Ljava/lang/Class;I)Z", (void*)&WB_EnqueueInitializerForCompilation}, 1908 {CC"clearMethodState0", 1909 CC"(Ljava/lang/reflect/Executable;)V", (void*)&WB_ClearMethodState}, 1910 {CC"lockCompilation", CC"()V", (void*)&WB_LockCompilation}, 1911 {CC"unlockCompilation", CC"()V", (void*)&WB_UnlockCompilation}, 1912 {CC"matchesMethod", 1913 CC"(Ljava/lang/reflect/Executable;Ljava/lang/String;)I", 1914 (void*)&WB_MatchesMethod}, 1915 {CC"matchesInline", 1916 CC"(Ljava/lang/reflect/Executable;Ljava/lang/String;)I", 1917 (void*)&WB_MatchesInline}, 1918 {CC"shouldPrintAssembly", 1919 CC"(Ljava/lang/reflect/Executable;I)Z", 1920 (void*)&WB_ShouldPrintAssembly}, 1921 1922 {CC"isConstantVMFlag", CC"(Ljava/lang/String;)Z", (void*)&WB_IsConstantVMFlag}, 1923 {CC"isLockedVMFlag", CC"(Ljava/lang/String;)Z", (void*)&WB_IsLockedVMFlag}, 1924 {CC"setBooleanVMFlag", CC"(Ljava/lang/String;Z)V",(void*)&WB_SetBooleanVMFlag}, 1925 {CC"setIntVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetIntVMFlag}, 1926 {CC"setUintVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUintVMFlag}, 1927 {CC"setIntxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetIntxVMFlag}, 1928 {CC"setUintxVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUintxVMFlag}, 1929 {CC"setUint64VMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetUint64VMFlag}, 1930 {CC"setSizeTVMFlag", CC"(Ljava/lang/String;J)V",(void*)&WB_SetSizeTVMFlag}, 1931 {CC"setDoubleVMFlag", CC"(Ljava/lang/String;D)V",(void*)&WB_SetDoubleVMFlag}, 1932 {CC"setStringVMFlag", CC"(Ljava/lang/String;Ljava/lang/String;)V", 1933 (void*)&WB_SetStringVMFlag}, 1934 {CC"getBooleanVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Boolean;", 1935 (void*)&WB_GetBooleanVMFlag}, 1936 {CC"getIntVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", 1937 (void*)&WB_GetIntVMFlag}, 1938 {CC"getUintVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", 1939 (void*)&WB_GetUintVMFlag}, 1940 {CC"getIntxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", 1941 (void*)&WB_GetIntxVMFlag}, 1942 {CC"getUintxVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", 1943 (void*)&WB_GetUintxVMFlag}, 1944 {CC"getUint64VMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", 1945 (void*)&WB_GetUint64VMFlag}, 1946 {CC"getSizeTVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Long;", 1947 (void*)&WB_GetSizeTVMFlag}, 1948 {CC"getDoubleVMFlag", CC"(Ljava/lang/String;)Ljava/lang/Double;", 1949 (void*)&WB_GetDoubleVMFlag}, 1950 {CC"getStringVMFlag", CC"(Ljava/lang/String;)Ljava/lang/String;", 1951 (void*)&WB_GetStringVMFlag}, 1952 {CC"isInStringTable", CC"(Ljava/lang/String;)Z", (void*)&WB_IsInStringTable }, 1953 {CC"fullGC", CC"()V", (void*)&WB_FullGC }, 1954 {CC"youngGC", CC"()V", (void*)&WB_YoungGC }, 1955 {CC"readReservedMemory", CC"()V", (void*)&WB_ReadReservedMemory }, 1956 {CC"allocateMetaspace", 1957 CC"(Ljava/lang/ClassLoader;J)J", (void*)&WB_AllocateMetaspace }, 1958 {CC"freeMetaspace", 1959 CC"(Ljava/lang/ClassLoader;JJ)V", (void*)&WB_FreeMetaspace }, 1960 {CC"incMetaspaceCapacityUntilGC", CC"(J)J", (void*)&WB_IncMetaspaceCapacityUntilGC }, 1961 {CC"metaspaceCapacityUntilGC", CC"()J", (void*)&WB_MetaspaceCapacityUntilGC }, 1962 {CC"metaspaceShouldConcurrentCollect", CC"()Z", (void*)&WB_MetaspaceShouldConcurrentCollect }, 1963 {CC"metaspaceReserveAlignment", CC"()J", (void*)&WB_MetaspaceReserveAlignment }, 1964 {CC"getCPUFeatures", CC"()Ljava/lang/String;", (void*)&WB_GetCPUFeatures }, 1965 {CC"getNMethod0", CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;", 1966 (void*)&WB_GetNMethod }, 1967 {CC"forceNMethodSweep", CC"()V", (void*)&WB_ForceNMethodSweep }, 1968 {CC"allocateCodeBlob", CC"(II)J", (void*)&WB_AllocateCodeBlob }, 1969 {CC"freeCodeBlob", CC"(J)V", (void*)&WB_FreeCodeBlob }, 1970 {CC"getCodeHeapEntries", CC"(I)[Ljava/lang/Object;",(void*)&WB_GetCodeHeapEntries }, 1971 {CC"getCompilationActivityMode", 1972 CC"()I", (void*)&WB_GetCompilationActivityMode}, 1973 {CC"getMethodData0", CC"(Ljava/lang/reflect/Executable;)J", 1974 (void*)&WB_GetMethodData }, 1975 {CC"getCodeBlob", CC"(J)[Ljava/lang/Object;",(void*)&WB_GetCodeBlob }, 1976 {CC"getThreadStackSize", CC"()J", (void*)&WB_GetThreadStackSize }, 1977 {CC"getThreadRemainingStackSize", CC"()J", (void*)&WB_GetThreadRemainingStackSize }, 1978 {CC"DefineModule", CC"(Ljava/lang/Object;ZLjava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)V", 1979 (void*)&WB_DefineModule }, 1980 {CC"AddModuleExports", CC"(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/Object;)V", 1981 (void*)&WB_AddModuleExports }, 1982 {CC"AddReadsModule", CC"(Ljava/lang/Object;Ljava/lang/Object;)V", 1983 (void*)&WB_AddReadsModule }, 1984 {CC"AddModuleExportsToAllUnnamed", CC"(Ljava/lang/Object;Ljava/lang/String;)V", 1985 (void*)&WB_AddModuleExportsToAllUnnamed }, 1986 {CC"AddModuleExportsToAll", CC"(Ljava/lang/Object;Ljava/lang/String;)V", 1987 (void*)&WB_AddModuleExportsToAll }, 1988 {CC"assertMatchingSafepointCalls", CC"(ZZ)V", (void*)&WB_AssertMatchingSafepointCalls }, 1989 {CC"isMonitorInflated0", CC"(Ljava/lang/Object;)Z", (void*)&WB_IsMonitorInflated }, 1990 {CC"forceSafepoint", CC"()V", (void*)&WB_ForceSafepoint }, 1991 {CC"getConstantPool0", CC"(Ljava/lang/Class;)J", (void*)&WB_GetConstantPool }, 1992 {CC"getConstantPoolCacheIndexTag0", CC"()I", (void*)&WB_GetConstantPoolCacheIndexTag}, 1993 {CC"getConstantPoolCacheLength0", CC"(Ljava/lang/Class;)I", (void*)&WB_GetConstantPoolCacheLength}, 1994 {CC"remapInstructionOperandFromCPCache0", 1995 CC"(Ljava/lang/Class;I)I", (void*)&WB_ConstantPoolRemapInstructionOperandFromCache}, 1996 {CC"encodeConstantPoolIndyIndex0", 1997 CC"(I)I", (void*)&WB_ConstantPoolEncodeIndyIndex}, 1998 {CC"getMethodBooleanOption", 1999 CC"(Ljava/lang/reflect/Executable;Ljava/lang/String;)Ljava/lang/Boolean;", 2000 (void*)&WB_GetMethodBooleaneOption}, 2001 {CC"getMethodIntxOption", 2002 CC"(Ljava/lang/reflect/Executable;Ljava/lang/String;)Ljava/lang/Long;", 2003 (void*)&WB_GetMethodIntxOption}, 2004 {CC"getMethodUintxOption", 2005 CC"(Ljava/lang/reflect/Executable;Ljava/lang/String;)Ljava/lang/Long;", 2006 (void*)&WB_GetMethodUintxOption}, 2007 {CC"getMethodDoubleOption", 2008 CC"(Ljava/lang/reflect/Executable;Ljava/lang/String;)Ljava/lang/Double;", 2009 (void*)&WB_GetMethodDoubleOption}, 2010 {CC"getMethodStringOption", 2011 CC"(Ljava/lang/reflect/Executable;Ljava/lang/String;)Ljava/lang/String;", 2012 (void*)&WB_GetMethodStringOption}, 2013 {CC"isShared", CC"(Ljava/lang/Object;)Z", (void*)&WB_IsShared }, 2014 {CC"isSharedClass", CC"(Ljava/lang/Class;)Z", (void*)&WB_IsSharedClass }, 2015 {CC"areSharedStringsIgnored", CC"()Z", (void*)&WB_AreSharedStringsIgnored }, 2016 {CC"getResolvedReferences", CC"(Ljava/lang/Class;)Ljava/lang/Object;", (void*)&WB_GetResolvedReferences}, 2017 {CC"isCDSIncludedInVmBuild", CC"()Z", (void*)&WB_IsCDSIncludedInVmBuild }, 2018 {CC"clearInlineCaches0", CC"(Z)V", (void*)&WB_ClearInlineCaches }, 2019 {CC"addCompilerDirective", CC"(Ljava/lang/String;)I", 2020 (void*)&WB_AddCompilerDirective }, 2021 {CC"removeCompilerDirective", CC"(I)V", (void*)&WB_RemoveCompilerDirective }, 2022 {CC"currentGC", CC"()I", (void*)&WB_CurrentGC}, 2023 {CC"allSupportedGC", CC"()I", (void*)&WB_AllSupportedGC}, 2024 {CC"gcSelectedByErgo", CC"()Z", (void*)&WB_GCSelectedByErgo}, 2025 {CC"supportsConcurrentGCPhaseControl", CC"()Z", (void*)&WB_SupportsConcurrentGCPhaseControl}, 2026 {CC"getConcurrentGCPhases", CC"()[Ljava/lang/String;", 2027 (void*)&WB_GetConcurrentGCPhases}, 2028 {CC"requestConcurrentGCPhase0", CC"(Ljava/lang/String;)Z", 2029 (void*)&WB_RequestConcurrentGCPhase}, 2030}; 2031 2032#undef CC 2033 2034JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass)) 2035 { 2036 if (WhiteBoxAPI) { 2037 // Make sure that wbclass is loaded by the null classloader 2038 InstanceKlass* ik = InstanceKlass::cast(JNIHandles::resolve(wbclass)->klass()); 2039 Handle loader(THREAD, ik->class_loader()); 2040 if (loader.is_null()) { 2041 WhiteBox::register_methods(env, wbclass, thread, methods, sizeof(methods) / sizeof(methods[0])); 2042 WhiteBox::register_extended(env, wbclass, thread); 2043 WhiteBox::set_used(); 2044 } 2045 } 2046 } 2047JVM_END 2048