1 /* 2 * Copyright (c) 1999, 2018, 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/systemDictionary.hpp" 37 #include "classfile/vmSymbols.hpp" 38 #include "code/codeCache.hpp" 39 #include "code/scopeDesc.hpp" 40 #include "compiler/compileBroker.hpp" 41 #include "compiler/compileLog.hpp" 42 #include "compiler/disassembler.hpp" 43 #include "gc/shared/collectedHeap.inline.hpp" 44 #include "interpreter/linkResolver.hpp" 45 #include "jfr/jfrEvents.hpp" 46 #include "memory/allocation.inline.hpp" 47 #include "memory/oopFactory.hpp" 48 #include "memory/resourceArea.hpp" 49 #include "memory/universe.hpp" 50 #include "oops/constantPool.inline.hpp" 51 #include "oops/cpCache.inline.hpp" 52 #include "oops/method.inline.hpp" 53 #include "oops/methodData.hpp" 54 #include "oops/objArrayKlass.hpp" 55 #include "oops/objArrayOop.inline.hpp" 56 #include "oops/oop.inline.hpp" 57 #include "prims/jvmtiExport.hpp" 58 #include "runtime/init.hpp" 59 #include "runtime/reflection.hpp" 60 #include "runtime/jniHandles.inline.hpp" 61 #include "runtime/safepointVerifiers.hpp" 62 #include "runtime/sharedRuntime.hpp" 63 #include "runtime/thread.inline.hpp" 64 #include "utilities/dtrace.hpp" 65 #include "utilities/macros.hpp" 66 #ifdef COMPILER1 67 #include "c1/c1_Runtime1.hpp" 68 #endif 69 #ifdef COMPILER2 70 #include "opto/runtime.hpp" 71 #endif 72 73 // ciEnv 74 // 75 // This class is the top level broker for requests from the compiler 76 // to the VM. 77 78 ciObject* ciEnv::_null_object_instance; 79 80 #define WK_KLASS_DEFN(name, ignore_s) ciInstanceKlass* ciEnv::_##name = NULL; 81 WK_KLASSES_DO(WK_KLASS_DEFN) 82 #undef WK_KLASS_DEFN 83 84 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; 85 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; 86 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; 87 88 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL; 89 jobject ciEnv::_ArrayStoreException_handle = NULL; 90 jobject ciEnv::_ClassCastException_handle = NULL; 91 92 #ifndef PRODUCT 93 static bool firstEnv = true; 94 #endif /* PRODUCT */ 95 96 // ------------------------------------------------------------------ 97 // ciEnv::ciEnv 98 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) 99 : _ciEnv_arena(mtCompiler) { 100 VM_ENTRY_MARK; 101 102 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 103 thread->set_env(this); 104 assert(ciEnv::current() == this, "sanity"); 105 106 _oop_recorder = NULL; 107 _debug_info = NULL; 108 _dependencies = NULL; 109 _failure_reason = NULL; 110 _inc_decompile_count_on_failure = true; 111 _compilable = MethodCompilable; 112 _break_at_compile = false; 113 _compiler_data = NULL; 114 #ifndef PRODUCT 115 assert(!firstEnv, "not initialized properly"); 116 #endif /* !PRODUCT */ 117 118 _system_dictionary_modification_counter = system_dictionary_modification_counter; 119 _num_inlined_bytecodes = 0; 120 assert(task == NULL || thread->task() == task, "sanity"); 121 _task = task; 122 _log = NULL; 123 124 // Temporary buffer for creating symbols and such. 125 _name_buffer = NULL; 126 _name_buffer_len = 0; 127 128 _arena = &_ciEnv_arena; 129 _factory = new (_arena) ciObjectFactory(_arena, 128); 130 131 // Preload commonly referenced system ciObjects. 132 133 // During VM initialization, these instances have not yet been created. 134 // Assertions ensure that these instances are not accessed before 135 // their initialization. 136 137 assert(Universe::is_fully_initialized(), "should be complete"); 138 139 oop o = Universe::null_ptr_exception_instance(); 140 assert(o != NULL, "should have been initialized"); 141 _NullPointerException_instance = get_object(o)->as_instance(); 142 o = Universe::arithmetic_exception_instance(); 143 assert(o != NULL, "should have been initialized"); 144 _ArithmeticException_instance = get_object(o)->as_instance(); 145 146 _ArrayIndexOutOfBoundsException_instance = NULL; 147 _ArrayStoreException_instance = NULL; 148 _ClassCastException_instance = NULL; 149 _the_null_string = NULL; 150 _the_min_jint_string = NULL; 151 152 _jvmti_can_hotswap_or_post_breakpoint = false; 153 _jvmti_can_access_local_variables = false; 154 _jvmti_can_post_on_exceptions = false; 155 _jvmti_can_pop_frame = false; 156 } 157 158 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) { 159 ASSERT_IN_VM; 160 161 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 162 CompilerThread* current_thread = CompilerThread::current(); 163 assert(current_thread->env() == NULL, "must be"); 164 current_thread->set_env(this); 165 assert(ciEnv::current() == this, "sanity"); 166 167 _oop_recorder = NULL; 168 _debug_info = NULL; 169 _dependencies = NULL; 170 _failure_reason = NULL; 171 _inc_decompile_count_on_failure = true; 172 _compilable = MethodCompilable_never; 173 _break_at_compile = false; 174 _compiler_data = NULL; 175 #ifndef PRODUCT 176 assert(firstEnv, "must be first"); 177 firstEnv = false; 178 #endif /* !PRODUCT */ 179 180 _system_dictionary_modification_counter = 0; 181 _num_inlined_bytecodes = 0; 182 _task = NULL; 183 _log = NULL; 184 185 // Temporary buffer for creating symbols and such. 186 _name_buffer = NULL; 187 _name_buffer_len = 0; 188 189 _arena = arena; 190 _factory = new (_arena) ciObjectFactory(_arena, 128); 191 192 // Preload commonly referenced system ciObjects. 193 194 // During VM initialization, these instances have not yet been created. 195 // Assertions ensure that these instances are not accessed before 196 // their initialization. 197 198 assert(Universe::is_fully_initialized(), "must be"); 199 200 _NullPointerException_instance = NULL; 201 _ArithmeticException_instance = NULL; 202 _ArrayIndexOutOfBoundsException_instance = NULL; 203 _ArrayStoreException_instance = NULL; 204 _ClassCastException_instance = NULL; 205 _the_null_string = NULL; 206 _the_min_jint_string = NULL; 207 208 _jvmti_can_hotswap_or_post_breakpoint = false; 209 _jvmti_can_access_local_variables = false; 210 _jvmti_can_post_on_exceptions = false; 211 _jvmti_can_pop_frame = false; 212 } 213 214 ciEnv::~ciEnv() { 215 GUARDED_VM_ENTRY( 216 CompilerThread* current_thread = CompilerThread::current(); 217 _factory->remove_symbols(); 218 // Need safepoint to clear the env on the thread. RedefineClasses might 219 // be reading it. 220 current_thread->set_env(NULL); 221 ) 222 } 223 224 // ------------------------------------------------------------------ 225 // Cache Jvmti state 226 void ciEnv::cache_jvmti_state() { 227 VM_ENTRY_MARK; 228 // Get Jvmti capabilities under lock to get consistant values. 229 MutexLocker mu(JvmtiThreadState_lock); 230 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); 231 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); 232 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); 233 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame(); 234 } 235 236 bool ciEnv::jvmti_state_changed() const { 237 if (!_jvmti_can_access_local_variables && 238 JvmtiExport::can_access_local_variables()) { 239 return true; 240 } 241 if (!_jvmti_can_hotswap_or_post_breakpoint && 242 JvmtiExport::can_hotswap_or_post_breakpoint()) { 243 return true; 244 } 245 if (!_jvmti_can_post_on_exceptions && 246 JvmtiExport::can_post_on_exceptions()) { 247 return true; 248 } 249 if (!_jvmti_can_pop_frame && 250 JvmtiExport::can_pop_frame()) { 251 return true; 252 } 253 return false; 254 } 255 256 // ------------------------------------------------------------------ 257 // Cache DTrace flags 258 void ciEnv::cache_dtrace_flags() { 259 // Need lock? 260 _dtrace_extended_probes = ExtendedDTraceProbes; 261 if (_dtrace_extended_probes) { 262 _dtrace_monitor_probes = true; 263 _dtrace_method_probes = true; 264 _dtrace_alloc_probes = true; 265 } else { 266 _dtrace_monitor_probes = DTraceMonitorProbes; 267 _dtrace_method_probes = DTraceMethodProbes; 268 _dtrace_alloc_probes = DTraceAllocProbes; 269 } 270 } 271 272 // ------------------------------------------------------------------ 273 // helper for lazy exception creation 274 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { 275 VM_ENTRY_MARK; 276 if (handle == NULL) { 277 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. 278 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD); 279 jobject objh = NULL; 280 if (!HAS_PENDING_EXCEPTION && k != NULL) { 281 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD); 282 if (!HAS_PENDING_EXCEPTION) 283 objh = JNIHandles::make_global(Handle(THREAD, obj)); 284 } 285 if (HAS_PENDING_EXCEPTION) { 286 CLEAR_PENDING_EXCEPTION; 287 } else { 288 handle = objh; 289 } 290 } 291 oop obj = JNIHandles::resolve(handle); 292 return obj == NULL? NULL: get_object(obj)->as_instance(); 293 } 294 295 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { 296 if (_ArrayIndexOutOfBoundsException_instance == NULL) { 297 _ArrayIndexOutOfBoundsException_instance 298 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, 299 vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); 300 } 301 return _ArrayIndexOutOfBoundsException_instance; 302 } 303 ciInstance* ciEnv::ArrayStoreException_instance() { 304 if (_ArrayStoreException_instance == NULL) { 305 _ArrayStoreException_instance 306 = get_or_create_exception(_ArrayStoreException_handle, 307 vmSymbols::java_lang_ArrayStoreException()); 308 } 309 return _ArrayStoreException_instance; 310 } 311 ciInstance* ciEnv::ClassCastException_instance() { 312 if (_ClassCastException_instance == NULL) { 313 _ClassCastException_instance 314 = get_or_create_exception(_ClassCastException_handle, 315 vmSymbols::java_lang_ClassCastException()); 316 } 317 return _ClassCastException_instance; 318 } 319 320 ciInstance* ciEnv::the_null_string() { 321 if (_the_null_string == NULL) { 322 VM_ENTRY_MARK; 323 _the_null_string = get_object(Universe::the_null_string())->as_instance(); 324 } 325 return _the_null_string; 326 } 327 328 ciInstance* ciEnv::the_min_jint_string() { 329 if (_the_min_jint_string == NULL) { 330 VM_ENTRY_MARK; 331 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); 332 } 333 return _the_min_jint_string; 334 } 335 336 // ------------------------------------------------------------------ 337 // ciEnv::get_method_from_handle 338 ciMethod* ciEnv::get_method_from_handle(Method* method) { 339 VM_ENTRY_MARK; 340 return get_metadata(method)->as_method(); 341 } 342 343 // ------------------------------------------------------------------ 344 // ciEnv::array_element_offset_in_bytes 345 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { 346 VM_ENTRY_MARK; 347 objArrayOop a = (objArrayOop)a_h->get_oop(); 348 assert(a->is_objArray(), ""); 349 int length = a->length(); 350 oop o = o_h->get_oop(); 351 for (int i = 0; i < length; i++) { 352 if (a->obj_at(i) == o) return i; 353 } 354 return -1; 355 } 356 357 358 // ------------------------------------------------------------------ 359 // ciEnv::check_klass_accessiblity 360 // 361 // Note: the logic of this method should mirror the logic of 362 // ConstantPool::verify_constant_pool_resolve. 363 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, 364 Klass* resolved_klass) { 365 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { 366 return true; 367 } 368 if (accessing_klass->is_obj_array_klass()) { 369 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); 370 } 371 if (!accessing_klass->is_instance_klass()) { 372 return true; 373 } 374 375 if (resolved_klass->is_objArray_klass()) { 376 // Find the element klass, if this is an array. 377 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass(); 378 } 379 if (resolved_klass->is_instance_klass()) { 380 return (Reflection::verify_class_access(accessing_klass->get_Klass(), 381 InstanceKlass::cast(resolved_klass), 382 true) == Reflection::ACCESS_OK); 383 } 384 return true; 385 } 386 387 // ------------------------------------------------------------------ 388 // ciEnv::get_klass_by_name_impl 389 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, 390 const constantPoolHandle& cpool, 391 ciSymbol* name, 392 bool require_local) { 393 ASSERT_IN_VM; 394 EXCEPTION_CONTEXT; 395 396 // Now we need to check the SystemDictionary 397 Symbol* sym = name->get_symbol(); 398 if (sym->char_at(0) == 'L' && 399 sym->char_at(sym->utf8_length()-1) == ';') { 400 // This is a name from a signature. Strip off the trimmings. 401 // Call recursive to keep scope of strippedsym. 402 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1, 403 sym->utf8_length()-2, 404 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); 405 ciSymbol* strippedname = get_symbol(strippedsym); 406 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); 407 } 408 409 // Check for prior unloaded klass. The SystemDictionary's answers 410 // can vary over time but the compiler needs consistency. 411 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); 412 if (unloaded_klass != NULL) { 413 if (require_local) return NULL; 414 return unloaded_klass; 415 } 416 417 Handle loader(THREAD, (oop)NULL); 418 Handle domain(THREAD, (oop)NULL); 419 if (accessing_klass != NULL) { 420 loader = Handle(THREAD, accessing_klass->loader()); 421 domain = Handle(THREAD, accessing_klass->protection_domain()); 422 } 423 424 // setup up the proper type to return on OOM 425 ciKlass* fail_type; 426 if (sym->char_at(0) == '[') { 427 fail_type = _unloaded_ciobjarrayklass; 428 } else { 429 fail_type = _unloaded_ciinstance_klass; 430 } 431 Klass* found_klass; 432 { 433 ttyUnlocker ttyul; // release tty lock to avoid ordering problems 434 MutexLocker ml(Compile_lock); 435 Klass* kls; 436 if (!require_local) { 437 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, 438 KILL_COMPILE_ON_FATAL_(fail_type)); 439 } else { 440 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain, 441 KILL_COMPILE_ON_FATAL_(fail_type)); 442 } 443 found_klass = kls; 444 } 445 446 // If we fail to find an array klass, look again for its element type. 447 // The element type may be available either locally or via constraints. 448 // In either case, if we can find the element type in the system dictionary, 449 // we must build an array type around it. The CI requires array klasses 450 // to be loaded if their element klasses are loaded, except when memory 451 // is exhausted. 452 if (sym->char_at(0) == '[' && 453 (sym->char_at(1) == '[' || sym->char_at(1) == 'L')) { 454 // We have an unloaded array. 455 // Build it on the fly if the element class exists. 456 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1, 457 sym->utf8_length()-1, 458 KILL_COMPILE_ON_FATAL_(fail_type)); 459 460 // Get element ciKlass recursively. 461 ciKlass* elem_klass = 462 get_klass_by_name_impl(accessing_klass, 463 cpool, 464 get_symbol(elem_sym), 465 require_local); 466 if (elem_klass != NULL && elem_klass->is_loaded()) { 467 // Now make an array for it 468 return ciObjArrayKlass::make_impl(elem_klass); 469 } 470 } 471 472 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) { 473 // Look inside the constant pool for pre-resolved class entries. 474 for (int i = cpool->length() - 1; i >= 1; i--) { 475 if (cpool->tag_at(i).is_klass()) { 476 Klass* kls = cpool->resolved_klass_at(i); 477 if (kls->name() == sym) { 478 found_klass = kls; 479 break; 480 } 481 } 482 } 483 } 484 485 if (found_klass != NULL) { 486 // Found it. Build a CI handle. 487 return get_klass(found_klass); 488 } 489 490 if (require_local) return NULL; 491 492 // Not yet loaded into the VM, or not governed by loader constraints. 493 // Make a CI representative for it. 494 return get_unloaded_klass(accessing_klass, name); 495 } 496 497 // ------------------------------------------------------------------ 498 // ciEnv::get_klass_by_name 499 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, 500 ciSymbol* klass_name, 501 bool require_local) { 502 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, 503 constantPoolHandle(), 504 klass_name, 505 require_local);) 506 } 507 508 // ------------------------------------------------------------------ 509 // ciEnv::get_klass_by_index_impl 510 // 511 // Implementation of get_klass_by_index. 512 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool, 513 int index, 514 bool& is_accessible, 515 ciInstanceKlass* accessor) { 516 EXCEPTION_CONTEXT; 517 Klass* klass = NULL; 518 Symbol* klass_name = NULL; 519 520 if (cpool->tag_at(index).is_symbol()) { 521 klass_name = cpool->symbol_at(index); 522 } else { 523 // Check if it's resolved if it's not a symbol constant pool entry. 524 klass = ConstantPool::klass_at_if_loaded(cpool, index); 525 // Try to look it up by name. 526 if (klass == NULL) { 527 klass_name = cpool->klass_name_at(index); 528 } 529 } 530 531 if (klass == NULL) { 532 // Not found in constant pool. Use the name to do the lookup. 533 ciKlass* k = get_klass_by_name_impl(accessor, 534 cpool, 535 get_symbol(klass_name), 536 false); 537 // Calculate accessibility the hard way. 538 if (!k->is_loaded()) { 539 is_accessible = false; 540 } else if (!oopDesc::equals(k->loader(), accessor->loader()) && 541 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) { 542 // Loaded only remotely. Not linked yet. 543 is_accessible = false; 544 } else { 545 // Linked locally, and we must also check public/private, etc. 546 is_accessible = check_klass_accessibility(accessor, k->get_Klass()); 547 } 548 return k; 549 } 550 551 // Check for prior unloaded klass. The SystemDictionary's answers 552 // can vary over time but the compiler needs consistency. 553 ciSymbol* name = get_symbol(klass->name()); 554 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); 555 if (unloaded_klass != NULL) { 556 is_accessible = false; 557 return unloaded_klass; 558 } 559 560 // It is known to be accessible, since it was found in the constant pool. 561 is_accessible = true; 562 return get_klass(klass); 563 } 564 565 // ------------------------------------------------------------------ 566 // ciEnv::get_klass_by_index 567 // 568 // Get a klass from the constant pool. 569 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool, 570 int index, 571 bool& is_accessible, 572 ciInstanceKlass* accessor) { 573 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) 574 } 575 576 // ------------------------------------------------------------------ 577 // ciEnv::get_constant_by_index_impl 578 // 579 // Implementation of get_constant_by_index(). 580 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool, 581 int pool_index, int cache_index, 582 ciInstanceKlass* accessor) { 583 bool ignore_will_link; 584 EXCEPTION_CONTEXT; 585 int index = pool_index; 586 if (cache_index >= 0) { 587 assert(index < 0, "only one kind of index at a time"); 588 index = cpool->object_to_cp_index(cache_index); 589 oop obj = cpool->resolved_references()->obj_at(cache_index); 590 if (obj != NULL) { 591 if (oopDesc::equals(obj, Universe::the_null_sentinel())) { 592 return ciConstant(T_OBJECT, get_object(NULL)); 593 } 594 BasicType bt = T_OBJECT; 595 if (cpool->tag_at(index).is_dynamic_constant()) 596 bt = FieldType::basic_type(cpool->uncached_signature_ref_at(index)); 597 if (is_reference_type(bt)) { 598 } else { 599 // we have to unbox the primitive value 600 if (!is_java_primitive(bt)) return ciConstant(); 601 jvalue value; 602 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value); 603 assert(bt2 == bt, ""); 604 switch (bt2) { 605 case T_DOUBLE: return ciConstant(value.d); 606 case T_FLOAT: return ciConstant(value.f); 607 case T_LONG: return ciConstant(value.j); 608 case T_INT: return ciConstant(bt2, value.i); 609 case T_SHORT: return ciConstant(bt2, value.s); 610 case T_BYTE: return ciConstant(bt2, value.b); 611 case T_CHAR: return ciConstant(bt2, value.c); 612 case T_BOOLEAN: return ciConstant(bt2, value.z); 613 default: return ciConstant(); 614 } 615 } 616 ciObject* ciobj = get_object(obj); 617 if (ciobj->is_array()) { 618 return ciConstant(T_ARRAY, ciobj); 619 } else { 620 assert(ciobj->is_instance(), "should be an instance"); 621 return ciConstant(T_OBJECT, ciobj); 622 } 623 } 624 } 625 constantTag tag = cpool->tag_at(index); 626 if (tag.is_int()) { 627 return ciConstant(T_INT, (jint)cpool->int_at(index)); 628 } else if (tag.is_long()) { 629 return ciConstant((jlong)cpool->long_at(index)); 630 } else if (tag.is_float()) { 631 return ciConstant((jfloat)cpool->float_at(index)); 632 } else if (tag.is_double()) { 633 return ciConstant((jdouble)cpool->double_at(index)); 634 } else if (tag.is_string()) { 635 oop string = NULL; 636 assert(cache_index >= 0, "should have a cache index"); 637 if (cpool->is_pseudo_string_at(index)) { 638 string = cpool->pseudo_string_at(index, cache_index); 639 } else { 640 string = cpool->string_at(index, cache_index, THREAD); 641 if (HAS_PENDING_EXCEPTION) { 642 CLEAR_PENDING_EXCEPTION; 643 record_out_of_memory_failure(); 644 return ciConstant(); 645 } 646 } 647 ciObject* constant = get_object(string); 648 if (constant->is_array()) { 649 return ciConstant(T_ARRAY, constant); 650 } else { 651 assert (constant->is_instance(), "must be an instance, or not? "); 652 return ciConstant(T_OBJECT, constant); 653 } 654 } else if (tag.is_klass() || tag.is_unresolved_klass()) { 655 // 4881222: allow ldc to take a class type 656 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); 657 if (HAS_PENDING_EXCEPTION) { 658 CLEAR_PENDING_EXCEPTION; 659 record_out_of_memory_failure(); 660 return ciConstant(); 661 } 662 assert (klass->is_instance_klass() || klass->is_array_klass(), 663 "must be an instance or array klass "); 664 return ciConstant(T_OBJECT, klass->java_mirror()); 665 } else if (tag.is_method_type()) { 666 // must execute Java code to link this CP entry into cache[i].f1 667 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); 668 ciObject* ciobj = get_unloaded_method_type_constant(signature); 669 return ciConstant(T_OBJECT, ciobj); 670 } else if (tag.is_method_handle()) { 671 // must execute Java code to link this CP entry into cache[i].f1 672 int ref_kind = cpool->method_handle_ref_kind_at(index); 673 int callee_index = cpool->method_handle_klass_index_at(index); 674 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); 675 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); 676 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); 677 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); 678 return ciConstant(T_OBJECT, ciobj); 679 } else if (tag.is_dynamic_constant()) { 680 return ciConstant(); 681 } else { 682 ShouldNotReachHere(); 683 return ciConstant(); 684 } 685 } 686 687 // ------------------------------------------------------------------ 688 // ciEnv::get_constant_by_index 689 // 690 // Pull a constant out of the constant pool. How appropriate. 691 // 692 // Implementation note: this query is currently in no way cached. 693 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool, 694 int pool_index, int cache_index, 695 ciInstanceKlass* accessor) { 696 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) 697 } 698 699 // ------------------------------------------------------------------ 700 // ciEnv::get_field_by_index_impl 701 // 702 // Implementation of get_field_by_index. 703 // 704 // Implementation note: the results of field lookups are cached 705 // in the accessor klass. 706 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, 707 int index) { 708 ciConstantPoolCache* cache = accessor->field_cache(); 709 if (cache == NULL) { 710 ciField* field = new (arena()) ciField(accessor, index); 711 return field; 712 } else { 713 ciField* field = (ciField*)cache->get(index); 714 if (field == NULL) { 715 field = new (arena()) ciField(accessor, index); 716 cache->insert(index, field); 717 } 718 return field; 719 } 720 } 721 722 // ------------------------------------------------------------------ 723 // ciEnv::get_field_by_index 724 // 725 // Get a field by index from a klass's constant pool. 726 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, 727 int index) { 728 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) 729 } 730 731 // ------------------------------------------------------------------ 732 // ciEnv::lookup_method 733 // 734 // Perform an appropriate method lookup based on accessor, holder, 735 // name, signature, and bytecode. 736 Method* ciEnv::lookup_method(ciInstanceKlass* accessor, 737 ciKlass* holder, 738 Symbol* name, 739 Symbol* sig, 740 Bytecodes::Code bc, 741 constantTag tag) { 742 // Accessibility checks are performed in ciEnv::get_method_by_index_impl. 743 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible"); 744 745 InstanceKlass* accessor_klass = accessor->get_instanceKlass(); 746 Klass* holder_klass = holder->get_Klass(); 747 methodHandle dest_method; 748 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag); 749 switch (bc) { 750 case Bytecodes::_invokestatic: 751 dest_method = 752 LinkResolver::resolve_static_call_or_null(link_info); 753 break; 754 case Bytecodes::_invokespecial: 755 dest_method = 756 LinkResolver::resolve_special_call_or_null(link_info); 757 break; 758 case Bytecodes::_invokeinterface: 759 dest_method = 760 LinkResolver::linktime_resolve_interface_method_or_null(link_info); 761 break; 762 case Bytecodes::_invokevirtual: 763 dest_method = 764 LinkResolver::linktime_resolve_virtual_method_or_null(link_info); 765 break; 766 default: ShouldNotReachHere(); 767 } 768 769 return dest_method(); 770 } 771 772 773 // ------------------------------------------------------------------ 774 // ciEnv::get_method_by_index_impl 775 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool, 776 int index, Bytecodes::Code bc, 777 ciInstanceKlass* accessor) { 778 if (bc == Bytecodes::_invokedynamic) { 779 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index); 780 bool is_resolved = !cpce->is_f1_null(); 781 // FIXME: code generation could allow for null (unlinked) call site 782 // The call site could be made patchable as follows: 783 // Load the appendix argument from the constant pool. 784 // Test the appendix argument and jump to a known deopt routine if it is null. 785 // Jump through a patchable call site, which is initially a deopt routine. 786 // Patch the call site to the nmethod entry point of the static compiled lambda form. 787 // As with other two-component call sites, both values must be independently verified. 788 789 if (is_resolved) { 790 // Get the invoker Method* from the constant pool. 791 // (The appendix argument, if any, will be noted in the method's signature.) 792 Method* adapter = cpce->f1_as_method(); 793 return get_method(adapter); 794 } 795 796 // Fake a method that is equivalent to a declared method. 797 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass()); 798 ciSymbol* name = ciSymbol::invokeBasic_name(); 799 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index)); 800 return get_unloaded_method(holder, name, signature, accessor); 801 } else { 802 const int holder_index = cpool->klass_ref_index_at(index); 803 bool holder_is_accessible; 804 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); 805 806 // Get the method's name and signature. 807 Symbol* name_sym = cpool->name_ref_at(index); 808 Symbol* sig_sym = cpool->signature_ref_at(index); 809 810 if (cpool->has_preresolution() 811 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) && 812 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) { 813 // Short-circuit lookups for JSR 292-related call sites. 814 // That is, do not rely only on name-based lookups, because they may fail 815 // if the names are not resolvable in the boot class loader (7056328). 816 switch (bc) { 817 case Bytecodes::_invokevirtual: 818 case Bytecodes::_invokeinterface: 819 case Bytecodes::_invokespecial: 820 case Bytecodes::_invokestatic: 821 { 822 Method* m = ConstantPool::method_at_if_loaded(cpool, index); 823 if (m != NULL) { 824 return get_method(m); 825 } 826 } 827 break; 828 default: 829 break; 830 } 831 } 832 833 if (holder_is_accessible) { // Our declared holder is loaded. 834 constantTag tag = cpool->tag_ref_at(index); 835 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?"); 836 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag); 837 if (m != NULL && 838 (bc == Bytecodes::_invokestatic 839 ? m->method_holder()->is_not_initialized() 840 : !m->method_holder()->is_loaded())) { 841 m = NULL; 842 } 843 #ifdef ASSERT 844 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) { 845 m = NULL; 846 } 847 #endif 848 if (m != NULL) { 849 // We found the method. 850 return get_method(m); 851 } 852 } 853 854 // Either the declared holder was not loaded, or the method could 855 // not be found. Create a dummy ciMethod to represent the failed 856 // lookup. 857 ciSymbol* name = get_symbol(name_sym); 858 ciSymbol* signature = get_symbol(sig_sym); 859 return get_unloaded_method(holder, name, signature, accessor); 860 } 861 } 862 863 864 // ------------------------------------------------------------------ 865 // ciEnv::get_instance_klass_for_declared_method_holder 866 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { 867 // For the case of <array>.clone(), the method holder can be a ciArrayKlass 868 // instead of a ciInstanceKlass. For that case simply pretend that the 869 // declared holder is Object.clone since that's where the call will bottom out. 870 // A more correct fix would trickle out through many interfaces in CI, 871 // requiring ciInstanceKlass* to become ciKlass* and many more places would 872 // require checks to make sure the expected type was found. Given that this 873 // only occurs for clone() the more extensive fix seems like overkill so 874 // instead we simply smear the array type into Object. 875 guarantee(method_holder != NULL, "no method holder"); 876 if (method_holder->is_instance_klass()) { 877 return method_holder->as_instance_klass(); 878 } else if (method_holder->is_array_klass()) { 879 return current()->Object_klass(); 880 } else { 881 ShouldNotReachHere(); 882 } 883 return NULL; 884 } 885 886 887 // ------------------------------------------------------------------ 888 // ciEnv::get_method_by_index 889 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool, 890 int index, Bytecodes::Code bc, 891 ciInstanceKlass* accessor) { 892 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);) 893 } 894 895 896 // ------------------------------------------------------------------ 897 // ciEnv::name_buffer 898 char *ciEnv::name_buffer(int req_len) { 899 if (_name_buffer_len < req_len) { 900 if (_name_buffer == NULL) { 901 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); 902 _name_buffer_len = req_len; 903 } else { 904 _name_buffer = 905 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); 906 _name_buffer_len = req_len; 907 } 908 } 909 return _name_buffer; 910 } 911 912 // ------------------------------------------------------------------ 913 // ciEnv::is_in_vm 914 bool ciEnv::is_in_vm() { 915 return JavaThread::current()->thread_state() == _thread_in_vm; 916 } 917 918 bool ciEnv::system_dictionary_modification_counter_changed() { 919 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); 920 } 921 922 // ------------------------------------------------------------------ 923 // ciEnv::validate_compile_task_dependencies 924 // 925 // Check for changes during compilation (e.g. class loads, evolution, 926 // breakpoints, call site invalidation). 927 void ciEnv::validate_compile_task_dependencies(ciMethod* target) { 928 if (failing()) return; // no need for further checks 929 930 bool counter_changed = system_dictionary_modification_counter_changed(); 931 Dependencies::DepType result = dependencies()->validate_dependencies(_task, counter_changed); 932 if (result != Dependencies::end_marker) { 933 if (result == Dependencies::call_site_target_value) { 934 _inc_decompile_count_on_failure = false; 935 record_failure("call site target change"); 936 } else if (Dependencies::is_klass_type(result)) { 937 record_failure("concurrent class loading"); 938 } else { 939 record_failure("invalid non-klass dependency"); 940 } 941 } 942 } 943 944 // ------------------------------------------------------------------ 945 // ciEnv::register_method 946 void ciEnv::register_method(ciMethod* target, 947 int entry_bci, 948 CodeOffsets* offsets, 949 int orig_pc_offset, 950 CodeBuffer* code_buffer, 951 int frame_words, 952 OopMapSet* oop_map_set, 953 ExceptionHandlerTable* handler_table, 954 ImplicitExceptionTable* inc_table, 955 AbstractCompiler* compiler, 956 bool has_unsafe_access, 957 bool has_wide_vectors, 958 RTMState rtm_state) { 959 VM_ENTRY_MARK; 960 nmethod* nm = NULL; 961 { 962 // To prevent compile queue updates. 963 MutexLocker locker(MethodCompileQueue_lock, THREAD); 964 965 // Prevent SystemDictionary::add_to_hierarchy from running 966 // and invalidating our dependencies until we install this method. 967 // No safepoints are allowed. Otherwise, class redefinition can occur in between. 968 MutexLocker ml(Compile_lock); 969 NoSafepointVerifier nsv; 970 971 // Change in Jvmti state may invalidate compilation. 972 if (!failing() && jvmti_state_changed()) { 973 record_failure("Jvmti state change invalidated dependencies"); 974 } 975 976 // Change in DTrace flags may invalidate compilation. 977 if (!failing() && 978 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || 979 (!dtrace_method_probes() && DTraceMethodProbes) || 980 (!dtrace_alloc_probes() && DTraceAllocProbes) )) { 981 record_failure("DTrace flags change invalidated dependencies"); 982 } 983 984 if (!failing()) { 985 if (log() != NULL) { 986 // Log the dependencies which this compilation declares. 987 dependencies()->log_all_dependencies(); 988 } 989 990 // Encode the dependencies now, so we can check them right away. 991 dependencies()->encode_content_bytes(); 992 993 // Check for {class loads, evolution, breakpoints, ...} during compilation 994 validate_compile_task_dependencies(target); 995 } 996 997 methodHandle method(THREAD, target->get_Method()); 998 999 #if INCLUDE_RTM_OPT 1000 if (!failing() && (rtm_state != NoRTM) && 1001 (method()->method_data() != NULL) && 1002 (method()->method_data()->rtm_state() != rtm_state)) { 1003 // Preemptive decompile if rtm state was changed. 1004 record_failure("RTM state change invalidated rtm code"); 1005 } 1006 #endif 1007 1008 if (failing()) { 1009 // While not a true deoptimization, it is a preemptive decompile. 1010 MethodData* mdo = method()->method_data(); 1011 if (mdo != NULL && _inc_decompile_count_on_failure) { 1012 mdo->inc_decompile_count(); 1013 } 1014 1015 // All buffers in the CodeBuffer are allocated in the CodeCache. 1016 // If the code buffer is created on each compile attempt 1017 // as in C2, then it must be freed. 1018 code_buffer->free_blob(); 1019 return; 1020 } 1021 1022 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); 1023 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); 1024 1025 nm = nmethod::new_nmethod(method, 1026 compile_id(), 1027 entry_bci, 1028 offsets, 1029 orig_pc_offset, 1030 debug_info(), dependencies(), code_buffer, 1031 frame_words, oop_map_set, 1032 handler_table, inc_table, 1033 compiler, task()->comp_level()); 1034 1035 // Free codeBlobs 1036 code_buffer->free_blob(); 1037 1038 if (nm != NULL) { 1039 nm->set_has_unsafe_access(has_unsafe_access); 1040 nm->set_has_wide_vectors(has_wide_vectors); 1041 #if INCLUDE_RTM_OPT 1042 nm->set_rtm_state(rtm_state); 1043 #endif 1044 1045 // Record successful registration. 1046 // (Put nm into the task handle *before* publishing to the Java heap.) 1047 if (task() != NULL) { 1048 task()->set_code(nm); 1049 } 1050 1051 if (entry_bci == InvocationEntryBci) { 1052 if (TieredCompilation) { 1053 // If there is an old version we're done with it 1054 CompiledMethod* old = method->code(); 1055 if (TraceMethodReplacement && old != NULL) { 1056 ResourceMark rm; 1057 char *method_name = method->name_and_sig_as_C_string(); 1058 tty->print_cr("Replacing method %s", method_name); 1059 } 1060 if (old != NULL) { 1061 old->make_not_used(); 1062 } 1063 } 1064 if (TraceNMethodInstalls) { 1065 ResourceMark rm; 1066 char *method_name = method->name_and_sig_as_C_string(); 1067 ttyLocker ttyl; 1068 tty->print_cr("Installing method (%d) %s ", 1069 task()->comp_level(), 1070 method_name); 1071 } 1072 // Allow the code to be executed 1073 method->set_code(method, nm); 1074 } else { 1075 if (TraceNMethodInstalls) { 1076 ResourceMark rm; 1077 char *method_name = method->name_and_sig_as_C_string(); 1078 ttyLocker ttyl; 1079 tty->print_cr("Installing osr method (%d) %s @ %d", 1080 task()->comp_level(), 1081 method_name, 1082 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 = 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 = 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 }