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