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