1 /* 2 * Copyright (c) 1999, 2019, 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 #include "jvm.h" 27 #include "ci/ciConstant.hpp" 28 #include "ci/ciEnv.hpp" 29 #include "ci/ciField.hpp" 30 #include "ci/ciInstance.hpp" 31 #include "ci/ciInstanceKlass.hpp" 32 #include "ci/ciMethod.hpp" 33 #include "ci/ciNullObject.hpp" 34 #include "ci/ciReplay.hpp" 35 #include "ci/ciUtilities.inline.hpp" 36 #include "classfile/symbolTable.hpp" 37 #include "classfile/systemDictionary.hpp" 38 #include "classfile/vmSymbols.hpp" 39 #include "code/codeCache.hpp" 40 #include "code/scopeDesc.hpp" 41 #include "compiler/compileBroker.hpp" 42 #include "compiler/compileLog.hpp" 43 #include "compiler/disassembler.hpp" 44 #include "gc/shared/collectedHeap.inline.hpp" 45 #include "interpreter/linkResolver.hpp" 46 #include "jfr/jfrEvents.hpp" 47 #include "logging/log.hpp" 48 #include "memory/allocation.inline.hpp" 49 #include "memory/oopFactory.hpp" 50 #include "memory/resourceArea.hpp" 51 #include "memory/universe.hpp" 52 #include "oops/constantPool.inline.hpp" 53 #include "oops/cpCache.inline.hpp" 54 #include "oops/method.inline.hpp" 55 #include "oops/methodData.hpp" 56 #include "oops/objArrayKlass.hpp" 57 #include "oops/objArrayOop.inline.hpp" 58 #include "oops/oop.inline.hpp" 59 #include "prims/jvmtiExport.hpp" 60 #include "runtime/handles.inline.hpp" 61 #include "runtime/init.hpp" 62 #include "runtime/reflection.hpp" 63 #include "runtime/jniHandles.inline.hpp" 64 #include "runtime/safepointVerifiers.hpp" 65 #include "runtime/sharedRuntime.hpp" 66 #include "runtime/thread.inline.hpp" 67 #include "utilities/dtrace.hpp" 68 #include "utilities/macros.hpp" 69 #ifdef COMPILER1 70 #include "c1/c1_Runtime1.hpp" 71 #endif 72 #ifdef COMPILER2 73 #include "opto/runtime.hpp" 74 #endif 75 76 // ciEnv 77 // 78 // This class is the top level broker for requests from the compiler 79 // to the VM. 80 81 ciObject* ciEnv::_null_object_instance; 82 83 #define WK_KLASS_DEFN(name, ignore_s) ciInstanceKlass* ciEnv::_##name = NULL; 84 WK_KLASSES_DO(WK_KLASS_DEFN) 85 #undef WK_KLASS_DEFN 86 87 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; 88 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; 89 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; 90 91 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL; 92 jobject ciEnv::_ArrayStoreException_handle = NULL; 93 jobject ciEnv::_ClassCastException_handle = NULL; 94 95 #ifndef PRODUCT 96 static bool firstEnv = true; 97 #endif /* PRODUCT */ 98 99 // ------------------------------------------------------------------ 100 // ciEnv::ciEnv 101 ciEnv::ciEnv(CompileTask* task) 102 : _ciEnv_arena(mtCompiler) { 103 VM_ENTRY_MARK; 104 105 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 106 thread->set_env(this); 107 assert(ciEnv::current() == this, "sanity"); 108 109 _oop_recorder = NULL; 110 _debug_info = NULL; 111 _dependencies = NULL; 112 _failure_reason = NULL; 113 _inc_decompile_count_on_failure = true; 114 _compilable = MethodCompilable; 115 _break_at_compile = false; 116 _compiler_data = NULL; 117 #ifndef PRODUCT 118 assert(!firstEnv, "not initialized properly"); 119 #endif /* !PRODUCT */ 120 121 _num_inlined_bytecodes = 0; 122 assert(task == NULL || thread->task() == task, "sanity"); 123 if (task != NULL) { 124 task->mark_started(os::elapsed_counter()); 125 } 126 _task = task; 127 _log = NULL; 128 129 // Temporary buffer for creating symbols and such. 130 _name_buffer = NULL; 131 _name_buffer_len = 0; 132 133 _arena = &_ciEnv_arena; 134 _factory = new (_arena) ciObjectFactory(_arena, 128); 135 136 // Preload commonly referenced system ciObjects. 137 138 // During VM initialization, these instances have not yet been created. 139 // Assertions ensure that these instances are not accessed before 140 // their initialization. 141 142 assert(Universe::is_fully_initialized(), "should be complete"); 143 144 oop o = Universe::null_ptr_exception_instance(); 145 assert(o != NULL, "should have been initialized"); 146 _NullPointerException_instance = get_object(o)->as_instance(); 147 o = Universe::arithmetic_exception_instance(); 148 assert(o != NULL, "should have been initialized"); 149 _ArithmeticException_instance = get_object(o)->as_instance(); 150 151 _ArrayIndexOutOfBoundsException_instance = NULL; 152 _ArrayStoreException_instance = NULL; 153 _ClassCastException_instance = NULL; 154 _the_null_string = NULL; 155 _the_min_jint_string = NULL; 156 157 _jvmti_redefinition_count = 0; 158 _jvmti_can_hotswap_or_post_breakpoint = false; 159 _jvmti_can_access_local_variables = false; 160 _jvmti_can_post_on_exceptions = false; 161 _jvmti_can_pop_frame = false; 162 } 163 164 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) { 165 ASSERT_IN_VM; 166 167 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 168 CompilerThread* current_thread = CompilerThread::current(); 169 assert(current_thread->env() == NULL, "must be"); 170 current_thread->set_env(this); 171 assert(ciEnv::current() == this, "sanity"); 172 173 _oop_recorder = NULL; 174 _debug_info = NULL; 175 _dependencies = NULL; 176 _failure_reason = NULL; 177 _inc_decompile_count_on_failure = true; 178 _compilable = MethodCompilable_never; 179 _break_at_compile = false; 180 _compiler_data = NULL; 181 #ifndef PRODUCT 182 assert(firstEnv, "must be first"); 183 firstEnv = false; 184 #endif /* !PRODUCT */ 185 186 _num_inlined_bytecodes = 0; 187 _task = NULL; 188 _log = NULL; 189 190 // Temporary buffer for creating symbols and such. 191 _name_buffer = NULL; 192 _name_buffer_len = 0; 193 194 _arena = arena; 195 _factory = new (_arena) ciObjectFactory(_arena, 128); 196 197 // Preload commonly referenced system ciObjects. 198 199 // During VM initialization, these instances have not yet been created. 200 // Assertions ensure that these instances are not accessed before 201 // their initialization. 202 203 assert(Universe::is_fully_initialized(), "must be"); 204 205 _NullPointerException_instance = NULL; 206 _ArithmeticException_instance = NULL; 207 _ArrayIndexOutOfBoundsException_instance = NULL; 208 _ArrayStoreException_instance = NULL; 209 _ClassCastException_instance = NULL; 210 _the_null_string = NULL; 211 _the_min_jint_string = NULL; 212 213 _jvmti_redefinition_count = 0; 214 _jvmti_can_hotswap_or_post_breakpoint = false; 215 _jvmti_can_access_local_variables = false; 216 _jvmti_can_post_on_exceptions = false; 217 _jvmti_can_pop_frame = false; 218 } 219 220 ciEnv::~ciEnv() { 221 GUARDED_VM_ENTRY( 222 CompilerThread* current_thread = CompilerThread::current(); 223 _factory->remove_symbols(); 224 // Need safepoint to clear the env on the thread. RedefineClasses might 225 // be reading it. 226 current_thread->set_env(NULL); 227 ) 228 } 229 230 // ------------------------------------------------------------------ 231 // Cache Jvmti state 232 void ciEnv::cache_jvmti_state() { 233 VM_ENTRY_MARK; 234 // Get Jvmti capabilities under lock to get consistant values. 235 MutexLocker mu(JvmtiThreadState_lock); 236 _jvmti_redefinition_count = JvmtiExport::redefinition_count(); 237 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); 238 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); 239 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); 240 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame(); 241 _jvmti_can_get_owned_monitor_info = JvmtiExport::can_get_owned_monitor_info(); 242 } 243 244 bool ciEnv::jvmti_state_changed() const { 245 // Some classes were redefined 246 if (_jvmti_redefinition_count != JvmtiExport::redefinition_count()) { 247 return true; 248 } 249 250 if (!_jvmti_can_access_local_variables && 251 JvmtiExport::can_access_local_variables()) { 252 return true; 253 } 254 if (!_jvmti_can_hotswap_or_post_breakpoint && 255 JvmtiExport::can_hotswap_or_post_breakpoint()) { 256 return true; 257 } 258 if (!_jvmti_can_post_on_exceptions && 259 JvmtiExport::can_post_on_exceptions()) { 260 return true; 261 } 262 if (!_jvmti_can_pop_frame && 263 JvmtiExport::can_pop_frame()) { 264 return true; 265 } 266 if (!_jvmti_can_get_owned_monitor_info && 267 JvmtiExport::can_get_owned_monitor_info()) { 268 return true; 269 } 270 271 return false; 272 } 273 274 // ------------------------------------------------------------------ 275 // Cache DTrace flags 276 void ciEnv::cache_dtrace_flags() { 277 // Need lock? 278 _dtrace_extended_probes = ExtendedDTraceProbes; 279 if (_dtrace_extended_probes) { 280 _dtrace_monitor_probes = true; 281 _dtrace_method_probes = true; 282 _dtrace_alloc_probes = true; 283 } else { 284 _dtrace_monitor_probes = DTraceMonitorProbes; 285 _dtrace_method_probes = DTraceMethodProbes; 286 _dtrace_alloc_probes = DTraceAllocProbes; 287 } 288 } 289 290 // ------------------------------------------------------------------ 291 // helper for lazy exception creation 292 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { 293 VM_ENTRY_MARK; 294 if (handle == NULL) { 295 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. 296 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD); 297 jobject objh = NULL; 298 if (!HAS_PENDING_EXCEPTION && k != NULL) { 299 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD); 300 if (!HAS_PENDING_EXCEPTION) 301 objh = JNIHandles::make_global(Handle(THREAD, obj)); 302 } 303 if (HAS_PENDING_EXCEPTION) { 304 CLEAR_PENDING_EXCEPTION; 305 } else { 306 handle = objh; 307 } 308 } 309 oop obj = JNIHandles::resolve(handle); 310 return obj == NULL? NULL: get_object(obj)->as_instance(); 311 } 312 313 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { 314 if (_ArrayIndexOutOfBoundsException_instance == NULL) { 315 _ArrayIndexOutOfBoundsException_instance 316 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, 317 vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); 318 } 319 return _ArrayIndexOutOfBoundsException_instance; 320 } 321 ciInstance* ciEnv::ArrayStoreException_instance() { 322 if (_ArrayStoreException_instance == NULL) { 323 _ArrayStoreException_instance 324 = get_or_create_exception(_ArrayStoreException_handle, 325 vmSymbols::java_lang_ArrayStoreException()); 326 } 327 return _ArrayStoreException_instance; 328 } 329 ciInstance* ciEnv::ClassCastException_instance() { 330 if (_ClassCastException_instance == NULL) { 331 _ClassCastException_instance 332 = get_or_create_exception(_ClassCastException_handle, 333 vmSymbols::java_lang_ClassCastException()); 334 } 335 return _ClassCastException_instance; 336 } 337 338 ciInstance* ciEnv::the_null_string() { 339 if (_the_null_string == NULL) { 340 VM_ENTRY_MARK; 341 _the_null_string = get_object(Universe::the_null_string())->as_instance(); 342 } 343 return _the_null_string; 344 } 345 346 ciInstance* ciEnv::the_min_jint_string() { 347 if (_the_min_jint_string == NULL) { 348 VM_ENTRY_MARK; 349 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); 350 } 351 return _the_min_jint_string; 352 } 353 354 // ------------------------------------------------------------------ 355 // ciEnv::get_method_from_handle 356 ciMethod* ciEnv::get_method_from_handle(Method* method) { 357 VM_ENTRY_MARK; 358 return get_metadata(method)->as_method(); 359 } 360 361 // ------------------------------------------------------------------ 362 // ciEnv::array_element_offset_in_bytes 363 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { 364 VM_ENTRY_MARK; 365 objArrayOop a = (objArrayOop)a_h->get_oop(); 366 assert(a->is_objArray(), ""); 367 int length = a->length(); 368 oop o = o_h->get_oop(); 369 for (int i = 0; i < length; i++) { 370 if (a->obj_at(i) == o) return i; 371 } 372 return -1; 373 } 374 375 376 // ------------------------------------------------------------------ 377 // ciEnv::check_klass_accessiblity 378 // 379 // Note: the logic of this method should mirror the logic of 380 // ConstantPool::verify_constant_pool_resolve. 381 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, 382 Klass* resolved_klass) { 383 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { 384 return true; 385 } 386 if (accessing_klass->is_obj_array_klass()) { 387 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); 388 } 389 if (!accessing_klass->is_instance_klass()) { 390 return true; 391 } 392 393 if (resolved_klass->is_objArray_klass()) { 394 // Find the element klass, if this is an array. 395 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass(); 396 } 397 if (resolved_klass->is_instance_klass()) { 398 return (Reflection::verify_class_access(accessing_klass->get_Klass(), 399 InstanceKlass::cast(resolved_klass), 400 true) == Reflection::ACCESS_OK); 401 } 402 return true; 403 } 404 405 // ------------------------------------------------------------------ 406 // ciEnv::get_klass_by_name_impl 407 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, 408 const constantPoolHandle& cpool, 409 ciSymbol* name, 410 bool require_local) { 411 ASSERT_IN_VM; 412 EXCEPTION_CONTEXT; 413 414 // Now we need to check the SystemDictionary 415 Symbol* sym = name->get_symbol(); 416 if (sym->char_at(0) == JVM_SIGNATURE_CLASS && 417 sym->char_at(sym->utf8_length()-1) == JVM_SIGNATURE_ENDCLASS) { 418 // This is a name from a signature. Strip off the trimmings. 419 // Call recursive to keep scope of strippedsym. 420 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1, 421 sym->utf8_length()-2); 422 ciSymbol* strippedname = get_symbol(strippedsym); 423 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); 424 } 425 426 // Check for prior unloaded klass. The SystemDictionary's answers 427 // can vary over time but the compiler needs consistency. 428 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); 429 if (unloaded_klass != NULL) { 430 if (require_local) return NULL; 431 return unloaded_klass; 432 } 433 434 Handle loader(THREAD, (oop)NULL); 435 Handle domain(THREAD, (oop)NULL); 436 if (accessing_klass != NULL) { 437 loader = Handle(THREAD, accessing_klass->loader()); 438 domain = Handle(THREAD, accessing_klass->protection_domain()); 439 } 440 441 // setup up the proper type to return on OOM 442 ciKlass* fail_type; 443 if (sym->char_at(0) == JVM_SIGNATURE_ARRAY) { 444 fail_type = _unloaded_ciobjarrayklass; 445 } else { 446 fail_type = _unloaded_ciinstance_klass; 447 } 448 Klass* found_klass; 449 { 450 ttyUnlocker ttyul; // release tty lock to avoid ordering problems 451 MutexLocker ml(Compile_lock); 452 Klass* kls; 453 if (!require_local) { 454 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, 455 KILL_COMPILE_ON_FATAL_(fail_type)); 456 } else { 457 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain, 458 KILL_COMPILE_ON_FATAL_(fail_type)); 459 } 460 found_klass = kls; 461 } 462 463 // If we fail to find an array klass, look again for its element type. 464 // The element type may be available either locally or via constraints. 465 // In either case, if we can find the element type in the system dictionary, 466 // we must build an array type around it. The CI requires array klasses 467 // to be loaded if their element klasses are loaded, except when memory 468 // is exhausted. 469 if (sym->char_at(0) == JVM_SIGNATURE_ARRAY && 470 (sym->char_at(1) == JVM_SIGNATURE_ARRAY || sym->char_at(1) == JVM_SIGNATURE_CLASS)) { 471 // We have an unloaded array. 472 // Build it on the fly if the element class exists. 473 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1, 474 sym->utf8_length()-1); 475 476 // Get element ciKlass recursively. 477 ciKlass* elem_klass = 478 get_klass_by_name_impl(accessing_klass, 479 cpool, 480 get_symbol(elem_sym), 481 require_local); 482 if (elem_klass != NULL && elem_klass->is_loaded()) { 483 // Now make an array for it 484 return ciObjArrayKlass::make_impl(elem_klass); 485 } 486 } 487 488 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) { 489 // Look inside the constant pool for pre-resolved class entries. 490 for (int i = cpool->length() - 1; i >= 1; i--) { 491 if (cpool->tag_at(i).is_klass()) { 492 Klass* kls = cpool->resolved_klass_at(i); 493 if (kls->name() == sym) { 494 found_klass = kls; 495 break; 496 } 497 } 498 } 499 } 500 501 if (found_klass != NULL) { 502 // Found it. Build a CI handle. 503 return get_klass(found_klass); 504 } 505 506 if (require_local) return NULL; 507 508 // Not yet loaded into the VM, or not governed by loader constraints. 509 // Make a CI representative for it. 510 return get_unloaded_klass(accessing_klass, name); 511 } 512 513 // ------------------------------------------------------------------ 514 // ciEnv::get_klass_by_name 515 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, 516 ciSymbol* klass_name, 517 bool require_local) { 518 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, 519 constantPoolHandle(), 520 klass_name, 521 require_local);) 522 } 523 524 // ------------------------------------------------------------------ 525 // ciEnv::get_klass_by_index_impl 526 // 527 // Implementation of get_klass_by_index. 528 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool, 529 int index, 530 bool& is_accessible, 531 ciInstanceKlass* accessor) { 532 EXCEPTION_CONTEXT; 533 Klass* klass = NULL; 534 Symbol* klass_name = NULL; 535 536 if (cpool->tag_at(index).is_symbol()) { 537 klass_name = cpool->symbol_at(index); 538 } else { 539 // Check if it's resolved if it's not a symbol constant pool entry. 540 klass = ConstantPool::klass_at_if_loaded(cpool, index); 541 // Try to look it up by name. 542 if (klass == NULL) { 543 klass_name = cpool->klass_name_at(index); 544 } 545 } 546 547 if (klass == NULL) { 548 // Not found in constant pool. Use the name to do the lookup. 549 ciKlass* k = get_klass_by_name_impl(accessor, 550 cpool, 551 get_symbol(klass_name), 552 false); 553 // Calculate accessibility the hard way. 554 if (!k->is_loaded()) { 555 is_accessible = false; 556 } else if (k->loader() != accessor->loader() && 557 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) { 558 // Loaded only remotely. Not linked yet. 559 is_accessible = false; 560 } else { 561 // Linked locally, and we must also check public/private, etc. 562 is_accessible = check_klass_accessibility(accessor, k->get_Klass()); 563 } 564 return k; 565 } 566 567 // Check for prior unloaded klass. The SystemDictionary's answers 568 // can vary over time but the compiler needs consistency. 569 ciSymbol* name = get_symbol(klass->name()); 570 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); 571 if (unloaded_klass != NULL) { 572 is_accessible = false; 573 return unloaded_klass; 574 } 575 576 // It is known to be accessible, since it was found in the constant pool. 577 is_accessible = true; 578 return get_klass(klass); 579 } 580 581 // ------------------------------------------------------------------ 582 // ciEnv::get_klass_by_index 583 // 584 // Get a klass from the constant pool. 585 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool, 586 int index, 587 bool& is_accessible, 588 ciInstanceKlass* accessor) { 589 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) 590 } 591 592 // ------------------------------------------------------------------ 593 // ciEnv::get_constant_by_index_impl 594 // 595 // Implementation of get_constant_by_index(). 596 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool, 597 int pool_index, int cache_index, 598 ciInstanceKlass* accessor) { 599 bool ignore_will_link; 600 EXCEPTION_CONTEXT; 601 int index = pool_index; 602 if (cache_index >= 0) { 603 assert(index < 0, "only one kind of index at a time"); 604 index = cpool->object_to_cp_index(cache_index); 605 oop obj = cpool->resolved_references()->obj_at(cache_index); 606 if (obj != NULL) { 607 if (obj == Universe::the_null_sentinel()) { 608 return ciConstant(T_OBJECT, get_object(NULL)); 609 } 610 BasicType bt = T_OBJECT; 611 if (cpool->tag_at(index).is_dynamic_constant()) 612 bt = FieldType::basic_type(cpool->uncached_signature_ref_at(index)); 613 if (is_reference_type(bt)) { 614 } else { 615 // we have to unbox the primitive value 616 if (!is_java_primitive(bt)) return ciConstant(); 617 jvalue value; 618 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value); 619 assert(bt2 == bt, ""); 620 switch (bt2) { 621 case T_DOUBLE: return ciConstant(value.d); 622 case T_FLOAT: return ciConstant(value.f); 623 case T_LONG: return ciConstant(value.j); 624 case T_INT: return ciConstant(bt2, value.i); 625 case T_SHORT: return ciConstant(bt2, value.s); 626 case T_BYTE: return ciConstant(bt2, value.b); 627 case T_CHAR: return ciConstant(bt2, value.c); 628 case T_BOOLEAN: return ciConstant(bt2, value.z); 629 default: return ciConstant(); 630 } 631 } 632 ciObject* ciobj = get_object(obj); 633 if (ciobj->is_array()) { 634 return ciConstant(T_ARRAY, ciobj); 635 } else { 636 assert(ciobj->is_instance(), "should be an instance"); 637 return ciConstant(T_OBJECT, ciobj); 638 } 639 } 640 } 641 constantTag tag = cpool->tag_at(index); 642 if (tag.is_int()) { 643 return ciConstant(T_INT, (jint)cpool->int_at(index)); 644 } else if (tag.is_long()) { 645 return ciConstant((jlong)cpool->long_at(index)); 646 } else if (tag.is_float()) { 647 return ciConstant((jfloat)cpool->float_at(index)); 648 } else if (tag.is_double()) { 649 return ciConstant((jdouble)cpool->double_at(index)); 650 } else if (tag.is_string()) { 651 oop string = NULL; 652 assert(cache_index >= 0, "should have a cache index"); 653 if (cpool->is_pseudo_string_at(index)) { 654 string = cpool->pseudo_string_at(index, cache_index); 655 } else { 656 string = cpool->string_at(index, cache_index, THREAD); 657 if (HAS_PENDING_EXCEPTION) { 658 CLEAR_PENDING_EXCEPTION; 659 record_out_of_memory_failure(); 660 return ciConstant(); 661 } 662 } 663 ciObject* constant = get_object(string); 664 if (constant->is_array()) { 665 return ciConstant(T_ARRAY, constant); 666 } else { 667 assert (constant->is_instance(), "must be an instance, or not? "); 668 return ciConstant(T_OBJECT, constant); 669 } 670 } else if (tag.is_klass() || tag.is_unresolved_klass()) { 671 // 4881222: allow ldc to take a class type 672 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); 673 if (HAS_PENDING_EXCEPTION) { 674 CLEAR_PENDING_EXCEPTION; 675 record_out_of_memory_failure(); 676 return ciConstant(); 677 } 678 assert (klass->is_instance_klass() || klass->is_array_klass(), 679 "must be an instance or array klass "); 680 return ciConstant(T_OBJECT, klass->java_mirror()); 681 } else if (tag.is_method_type()) { 682 // must execute Java code to link this CP entry into cache[i].f1 683 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); 684 ciObject* ciobj = get_unloaded_method_type_constant(signature); 685 return ciConstant(T_OBJECT, ciobj); 686 } else if (tag.is_method_handle()) { 687 // must execute Java code to link this CP entry into cache[i].f1 688 int ref_kind = cpool->method_handle_ref_kind_at(index); 689 int callee_index = cpool->method_handle_klass_index_at(index); 690 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); 691 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); 692 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); 693 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); 694 return ciConstant(T_OBJECT, ciobj); 695 } else if (tag.is_dynamic_constant()) { 696 return ciConstant(); 697 } else { 698 ShouldNotReachHere(); 699 return ciConstant(); 700 } 701 } 702 703 // ------------------------------------------------------------------ 704 // ciEnv::get_constant_by_index 705 // 706 // Pull a constant out of the constant pool. How appropriate. 707 // 708 // Implementation note: this query is currently in no way cached. 709 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool, 710 int pool_index, int cache_index, 711 ciInstanceKlass* accessor) { 712 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) 713 } 714 715 // ------------------------------------------------------------------ 716 // ciEnv::get_field_by_index_impl 717 // 718 // Implementation of get_field_by_index. 719 // 720 // Implementation note: the results of field lookups are cached 721 // in the accessor klass. 722 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, 723 int index) { 724 ciConstantPoolCache* cache = accessor->field_cache(); 725 if (cache == NULL) { 726 ciField* field = new (arena()) ciField(accessor, index); 727 return field; 728 } else { 729 ciField* field = (ciField*)cache->get(index); 730 if (field == NULL) { 731 field = new (arena()) ciField(accessor, index); 732 cache->insert(index, field); 733 } 734 return field; 735 } 736 } 737 738 // ------------------------------------------------------------------ 739 // ciEnv::get_field_by_index 740 // 741 // Get a field by index from a klass's constant pool. 742 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, 743 int index) { 744 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) 745 } 746 747 // ------------------------------------------------------------------ 748 // ciEnv::lookup_method 749 // 750 // Perform an appropriate method lookup based on accessor, holder, 751 // name, signature, and bytecode. 752 Method* ciEnv::lookup_method(ciInstanceKlass* accessor, 753 ciKlass* holder, 754 Symbol* name, 755 Symbol* sig, 756 Bytecodes::Code bc, 757 constantTag tag) { 758 // Accessibility checks are performed in ciEnv::get_method_by_index_impl. 759 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible"); 760 761 InstanceKlass* accessor_klass = accessor->get_instanceKlass(); 762 Klass* holder_klass = holder->get_Klass(); 763 methodHandle dest_method; 764 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag); 765 switch (bc) { 766 case Bytecodes::_invokestatic: 767 dest_method = 768 LinkResolver::resolve_static_call_or_null(link_info); 769 break; 770 case Bytecodes::_invokespecial: 771 dest_method = 772 LinkResolver::resolve_special_call_or_null(link_info); 773 break; 774 case Bytecodes::_invokeinterface: 775 dest_method = 776 LinkResolver::linktime_resolve_interface_method_or_null(link_info); 777 break; 778 case Bytecodes::_invokevirtual: 779 dest_method = 780 LinkResolver::linktime_resolve_virtual_method_or_null(link_info); 781 break; 782 default: ShouldNotReachHere(); 783 } 784 785 return dest_method(); 786 } 787 788 789 // ------------------------------------------------------------------ 790 // ciEnv::get_method_by_index_impl 791 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool, 792 int index, Bytecodes::Code bc, 793 ciInstanceKlass* accessor) { 794 if (bc == Bytecodes::_invokedynamic) { 795 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index); 796 bool is_resolved = !cpce->is_f1_null(); 797 // FIXME: code generation could allow for null (unlinked) call site 798 // The call site could be made patchable as follows: 799 // Load the appendix argument from the constant pool. 800 // Test the appendix argument and jump to a known deopt routine if it is null. 801 // Jump through a patchable call site, which is initially a deopt routine. 802 // Patch the call site to the nmethod entry point of the static compiled lambda form. 803 // As with other two-component call sites, both values must be independently verified. 804 805 if (is_resolved) { 806 // Get the invoker Method* from the constant pool. 807 // (The appendix argument, if any, will be noted in the method's signature.) 808 Method* adapter = cpce->f1_as_method(); 809 return get_method(adapter); 810 } 811 812 // Fake a method that is equivalent to a declared method. 813 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass()); 814 ciSymbol* name = ciSymbol::invokeBasic_name(); 815 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index)); 816 return get_unloaded_method(holder, name, signature, accessor); 817 } else { 818 const int holder_index = cpool->klass_ref_index_at(index); 819 bool holder_is_accessible; 820 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); 821 822 // Get the method's name and signature. 823 Symbol* name_sym = cpool->name_ref_at(index); 824 Symbol* sig_sym = cpool->signature_ref_at(index); 825 826 if (cpool->has_preresolution() 827 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) && 828 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) { 829 // Short-circuit lookups for JSR 292-related call sites. 830 // That is, do not rely only on name-based lookups, because they may fail 831 // if the names are not resolvable in the boot class loader (7056328). 832 switch (bc) { 833 case Bytecodes::_invokevirtual: 834 case Bytecodes::_invokeinterface: 835 case Bytecodes::_invokespecial: 836 case Bytecodes::_invokestatic: 837 { 838 Method* m = ConstantPool::method_at_if_loaded(cpool, index); 839 if (m != NULL) { 840 return get_method(m); 841 } 842 } 843 break; 844 default: 845 break; 846 } 847 } 848 849 if (holder_is_accessible) { // Our declared holder is loaded. 850 constantTag tag = cpool->tag_ref_at(index); 851 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?"); 852 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag); 853 if (m != NULL && 854 (bc == Bytecodes::_invokestatic 855 ? m->method_holder()->is_not_initialized() 856 : !m->method_holder()->is_loaded())) { 857 m = NULL; 858 } 859 #ifdef ASSERT 860 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) { 861 m = NULL; 862 } 863 #endif 864 if (m != NULL) { 865 // We found the method. 866 return get_method(m); 867 } 868 } 869 870 // Either the declared holder was not loaded, or the method could 871 // not be found. Create a dummy ciMethod to represent the failed 872 // lookup. 873 ciSymbol* name = get_symbol(name_sym); 874 ciSymbol* signature = get_symbol(sig_sym); 875 return get_unloaded_method(holder, name, signature, accessor); 876 } 877 } 878 879 880 // ------------------------------------------------------------------ 881 // ciEnv::get_instance_klass_for_declared_method_holder 882 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { 883 // For the case of <array>.clone(), the method holder can be a ciArrayKlass 884 // instead of a ciInstanceKlass. For that case simply pretend that the 885 // declared holder is Object.clone since that's where the call will bottom out. 886 // A more correct fix would trickle out through many interfaces in CI, 887 // requiring ciInstanceKlass* to become ciKlass* and many more places would 888 // require checks to make sure the expected type was found. Given that this 889 // only occurs for clone() the more extensive fix seems like overkill so 890 // instead we simply smear the array type into Object. 891 guarantee(method_holder != NULL, "no method holder"); 892 if (method_holder->is_instance_klass()) { 893 return method_holder->as_instance_klass(); 894 } else if (method_holder->is_array_klass()) { 895 return current()->Object_klass(); 896 } else { 897 ShouldNotReachHere(); 898 } 899 return NULL; 900 } 901 902 903 // ------------------------------------------------------------------ 904 // ciEnv::get_method_by_index 905 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool, 906 int index, Bytecodes::Code bc, 907 ciInstanceKlass* accessor) { 908 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);) 909 } 910 911 912 // ------------------------------------------------------------------ 913 // ciEnv::name_buffer 914 char *ciEnv::name_buffer(int req_len) { 915 if (_name_buffer_len < req_len) { 916 if (_name_buffer == NULL) { 917 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); 918 _name_buffer_len = req_len; 919 } else { 920 _name_buffer = 921 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); 922 _name_buffer_len = req_len; 923 } 924 } 925 return _name_buffer; 926 } 927 928 // ------------------------------------------------------------------ 929 // ciEnv::is_in_vm 930 bool ciEnv::is_in_vm() { 931 return JavaThread::current()->thread_state() == _thread_in_vm; 932 } 933 934 // ------------------------------------------------------------------ 935 // ciEnv::validate_compile_task_dependencies 936 // 937 // Check for changes during compilation (e.g. class loads, evolution, 938 // breakpoints, call site invalidation). 939 void ciEnv::validate_compile_task_dependencies(ciMethod* target) { 940 if (failing()) return; // no need for further checks 941 942 Dependencies::DepType result = dependencies()->validate_dependencies(_task); 943 if (result != Dependencies::end_marker) { 944 if (result == Dependencies::call_site_target_value) { 945 _inc_decompile_count_on_failure = false; 946 record_failure("call site target change"); 947 } else if (Dependencies::is_klass_type(result)) { 948 record_failure("concurrent class loading"); 949 } else { 950 record_failure("invalid non-klass dependency"); 951 } 952 } 953 } 954 955 // ------------------------------------------------------------------ 956 // ciEnv::register_method 957 void ciEnv::register_method(ciMethod* target, 958 int entry_bci, 959 CodeOffsets* offsets, 960 int orig_pc_offset, 961 CodeBuffer* code_buffer, 962 int frame_words, 963 OopMapSet* oop_map_set, 964 ExceptionHandlerTable* handler_table, 965 ImplicitExceptionTable* inc_table, 966 AbstractCompiler* compiler, 967 bool has_unsafe_access, 968 bool has_wide_vectors, 969 RTMState rtm_state) { 970 VM_ENTRY_MARK; 971 nmethod* nm = NULL; 972 { 973 // To prevent compile queue updates. 974 MutexLocker locker(MethodCompileQueue_lock, THREAD); 975 976 // Prevent SystemDictionary::add_to_hierarchy from running 977 // and invalidating our dependencies until we install this method. 978 // No safepoints are allowed. Otherwise, class redefinition can occur in between. 979 MutexLocker ml(Compile_lock); 980 NoSafepointVerifier nsv; 981 982 // Change in Jvmti state may invalidate compilation. 983 if (!failing() && jvmti_state_changed()) { 984 record_failure("Jvmti state change invalidated dependencies"); 985 } 986 987 // Change in DTrace flags may invalidate compilation. 988 if (!failing() && 989 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || 990 (!dtrace_method_probes() && DTraceMethodProbes) || 991 (!dtrace_alloc_probes() && DTraceAllocProbes) )) { 992 record_failure("DTrace flags change invalidated dependencies"); 993 } 994 995 if (!failing() && target->needs_clinit_barrier() && 996 target->holder()->is_in_error_state()) { 997 record_failure("method holder is in error state"); 998 } 999 1000 if (!failing()) { 1001 if (log() != NULL) { 1002 // Log the dependencies which this compilation declares. 1003 dependencies()->log_all_dependencies(); 1004 } 1005 1006 // Encode the dependencies now, so we can check them right away. 1007 dependencies()->encode_content_bytes(); 1008 1009 // Check for {class loads, evolution, breakpoints, ...} during compilation 1010 validate_compile_task_dependencies(target); 1011 } 1012 1013 methodHandle method(THREAD, target->get_Method()); 1014 1015 #if INCLUDE_RTM_OPT 1016 if (!failing() && (rtm_state != NoRTM) && 1017 (method()->method_data() != NULL) && 1018 (method()->method_data()->rtm_state() != rtm_state)) { 1019 // Preemptive decompile if rtm state was changed. 1020 record_failure("RTM state change invalidated rtm code"); 1021 } 1022 #endif 1023 1024 if (failing()) { 1025 // While not a true deoptimization, it is a preemptive decompile. 1026 MethodData* mdo = method()->method_data(); 1027 if (mdo != NULL && _inc_decompile_count_on_failure) { 1028 mdo->inc_decompile_count(); 1029 } 1030 1031 // All buffers in the CodeBuffer are allocated in the CodeCache. 1032 // If the code buffer is created on each compile attempt 1033 // as in C2, then it must be freed. 1034 code_buffer->free_blob(); 1035 return; 1036 } 1037 1038 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); 1039 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); 1040 1041 nm = nmethod::new_nmethod(method, 1042 compile_id(), 1043 entry_bci, 1044 offsets, 1045 orig_pc_offset, 1046 debug_info(), dependencies(), code_buffer, 1047 frame_words, oop_map_set, 1048 handler_table, inc_table, 1049 compiler, task()->comp_level()); 1050 1051 // Free codeBlobs 1052 code_buffer->free_blob(); 1053 1054 if (nm != NULL) { 1055 nm->set_has_unsafe_access(has_unsafe_access); 1056 nm->set_has_wide_vectors(has_wide_vectors); 1057 #if INCLUDE_RTM_OPT 1058 nm->set_rtm_state(rtm_state); 1059 #endif 1060 1061 // Record successful registration. 1062 // (Put nm into the task handle *before* publishing to the Java heap.) 1063 if (task() != NULL) { 1064 task()->set_code(nm); 1065 } 1066 1067 if (entry_bci == InvocationEntryBci) { 1068 if (TieredCompilation) { 1069 // If there is an old version we're done with it 1070 CompiledMethod* old = method->code(); 1071 if (TraceMethodReplacement && old != NULL) { 1072 ResourceMark rm; 1073 char *method_name = method->name_and_sig_as_C_string(); 1074 tty->print_cr("Replacing method %s", method_name); 1075 } 1076 if (old != NULL) { 1077 old->make_not_used(); 1078 } 1079 } 1080 1081 LogTarget(Info, nmethod, install) lt; 1082 if (lt.is_enabled()) { 1083 ResourceMark rm; 1084 char *method_name = method->name_and_sig_as_C_string(); 1085 lt.print("Installing method (%d) %s ", 1086 task()->comp_level(), method_name); 1087 } 1088 // Allow the code to be executed 1089 MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag); 1090 if (nm->make_in_use()) { 1091 method->set_code(method, nm); 1092 } 1093 } else { 1094 LogTarget(Info, nmethod, install) lt; 1095 if (lt.is_enabled()) { 1096 ResourceMark rm; 1097 char *method_name = method->name_and_sig_as_C_string(); 1098 lt.print("Installing osr method (%d) %s @ %d", 1099 task()->comp_level(), method_name, entry_bci); 1100 } 1101 MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag); 1102 if (nm->make_in_use()) { 1103 method->method_holder()->add_osr_nmethod(nm); 1104 } 1105 } 1106 } 1107 } // safepoints are allowed again 1108 1109 if (nm != NULL) { 1110 // JVMTI -- compiled method notification (must be done outside lock) 1111 nm->post_compiled_method_load_event(); 1112 } else { 1113 // The CodeCache is full. 1114 record_failure("code cache is full"); 1115 } 1116 } 1117 1118 1119 // ------------------------------------------------------------------ 1120 // ciEnv::find_system_klass 1121 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { 1122 VM_ENTRY_MARK; 1123 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false); 1124 } 1125 1126 // ------------------------------------------------------------------ 1127 // ciEnv::comp_level 1128 int ciEnv::comp_level() { 1129 if (task() == NULL) return CompLevel_highest_tier; 1130 return task()->comp_level(); 1131 } 1132 1133 // ------------------------------------------------------------------ 1134 // ciEnv::compile_id 1135 uint ciEnv::compile_id() { 1136 if (task() == NULL) return 0; 1137 return task()->compile_id(); 1138 } 1139 1140 // ------------------------------------------------------------------ 1141 // ciEnv::notice_inlined_method() 1142 void ciEnv::notice_inlined_method(ciMethod* method) { 1143 _num_inlined_bytecodes += method->code_size_for_inlining(); 1144 } 1145 1146 // ------------------------------------------------------------------ 1147 // ciEnv::num_inlined_bytecodes() 1148 int ciEnv::num_inlined_bytecodes() const { 1149 return _num_inlined_bytecodes; 1150 } 1151 1152 // ------------------------------------------------------------------ 1153 // ciEnv::record_failure() 1154 void ciEnv::record_failure(const char* reason) { 1155 if (_failure_reason == NULL) { 1156 // Record the first failure reason. 1157 _failure_reason = reason; 1158 } 1159 } 1160 1161 void ciEnv::report_failure(const char* reason) { 1162 EventCompilationFailure event; 1163 if (event.should_commit()) { 1164 event.set_compileId(compile_id()); 1165 event.set_failureMessage(reason); 1166 event.commit(); 1167 } 1168 } 1169 1170 // ------------------------------------------------------------------ 1171 // ciEnv::record_method_not_compilable() 1172 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) { 1173 int new_compilable = 1174 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ; 1175 1176 // Only note transitions to a worse state 1177 if (new_compilable > _compilable) { 1178 if (log() != NULL) { 1179 if (all_tiers) { 1180 log()->elem("method_not_compilable"); 1181 } else { 1182 log()->elem("method_not_compilable_at_tier level='%d'", 1183 current()->task()->comp_level()); 1184 } 1185 } 1186 _compilable = new_compilable; 1187 1188 // Reset failure reason; this one is more important. 1189 _failure_reason = NULL; 1190 record_failure(reason); 1191 } 1192 } 1193 1194 // ------------------------------------------------------------------ 1195 // ciEnv::record_out_of_memory_failure() 1196 void ciEnv::record_out_of_memory_failure() { 1197 // If memory is low, we stop compiling methods. 1198 record_method_not_compilable("out of memory"); 1199 } 1200 1201 ciInstance* ciEnv::unloaded_ciinstance() { 1202 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();) 1203 } 1204 1205 // ------------------------------------------------------------------ 1206 // ciEnv::dump_replay_data* 1207 1208 // Don't change thread state and acquire any locks. 1209 // Safe to call from VM error reporter. 1210 1211 void ciEnv::dump_compile_data(outputStream* out) { 1212 CompileTask* task = this->task(); 1213 if (task) { 1214 Method* method = task->method(); 1215 int entry_bci = task->osr_bci(); 1216 int comp_level = task->comp_level(); 1217 out->print("compile %s %s %s %d %d", 1218 method->klass_name()->as_quoted_ascii(), 1219 method->name()->as_quoted_ascii(), 1220 method->signature()->as_quoted_ascii(), 1221 entry_bci, comp_level); 1222 if (compiler_data() != NULL) { 1223 if (is_c2_compile(comp_level)) { 1224 #ifdef COMPILER2 1225 // Dump C2 inlining data. 1226 ((Compile*)compiler_data())->dump_inline_data(out); 1227 #endif 1228 } else if (is_c1_compile(comp_level)) { 1229 #ifdef COMPILER1 1230 // Dump C1 inlining data. 1231 ((Compilation*)compiler_data())->dump_inline_data(out); 1232 #endif 1233 } 1234 } 1235 out->cr(); 1236 } 1237 } 1238 1239 void ciEnv::dump_replay_data_unsafe(outputStream* out) { 1240 ResourceMark rm; 1241 #if INCLUDE_JVMTI 1242 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables); 1243 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint); 1244 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions); 1245 #endif // INCLUDE_JVMTI 1246 1247 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata(); 1248 out->print_cr("# %d ciObject found", objects->length()); 1249 for (int i = 0; i < objects->length(); i++) { 1250 objects->at(i)->dump_replay_data(out); 1251 } 1252 dump_compile_data(out); 1253 out->flush(); 1254 } 1255 1256 void ciEnv::dump_replay_data(outputStream* out) { 1257 GUARDED_VM_ENTRY( 1258 MutexLocker ml(Compile_lock); 1259 dump_replay_data_unsafe(out); 1260 ) 1261 } 1262 1263 void ciEnv::dump_replay_data(int compile_id) { 1264 static char buffer[O_BUFLEN]; 1265 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id); 1266 if (ret > 0) { 1267 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1268 if (fd != -1) { 1269 FILE* replay_data_file = os::open(fd, "w"); 1270 if (replay_data_file != NULL) { 1271 fileStream replay_data_stream(replay_data_file, /*need_close=*/true); 1272 dump_replay_data(&replay_data_stream); 1273 tty->print_cr("# Compiler replay data is saved as: %s", buffer); 1274 } else { 1275 tty->print_cr("# Can't open file to dump replay data."); 1276 } 1277 } 1278 } 1279 } 1280 1281 void ciEnv::dump_inline_data(int compile_id) { 1282 static char buffer[O_BUFLEN]; 1283 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id); 1284 if (ret > 0) { 1285 int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1286 if (fd != -1) { 1287 FILE* inline_data_file = os::open(fd, "w"); 1288 if (inline_data_file != NULL) { 1289 fileStream replay_data_stream(inline_data_file, /*need_close=*/true); 1290 GUARDED_VM_ENTRY( 1291 MutexLocker ml(Compile_lock); 1292 dump_compile_data(&replay_data_stream); 1293 ) 1294 replay_data_stream.flush(); 1295 tty->print("# Compiler inline data is saved as: "); 1296 tty->print_cr("%s", buffer); 1297 } else { 1298 tty->print_cr("# Can't open file to dump inline data."); 1299 } 1300 } 1301 } 1302 }