1 /* 2 * Copyright (c) 1999, 2014, 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/compilerOracle.hpp" 42 #include "gc_interface/collectedHeap.inline.hpp" 43 #include "interpreter/linkResolver.hpp" 44 #include "memory/allocation.inline.hpp" 45 #include "memory/oopFactory.hpp" 46 #include "memory/universe.inline.hpp" 47 #include "oops/methodData.hpp" 48 #include "oops/objArrayKlass.hpp" 49 #include "oops/oop.inline.hpp" 50 #include "oops/oop.inline2.hpp" 51 #include "prims/jvmtiExport.hpp" 52 #include "runtime/init.hpp" 53 #include "runtime/reflection.hpp" 54 #include "runtime/sharedRuntime.hpp" 55 #include "runtime/thread.inline.hpp" 56 #include "utilities/dtrace.hpp" 57 #include "utilities/macros.hpp" 58 #ifdef COMPILER1 59 #include "c1/c1_Runtime1.hpp" 60 #endif 61 #ifdef COMPILER2 62 #include "opto/runtime.hpp" 63 #endif 64 65 // ciEnv 66 // 67 // This class is the top level broker for requests from the compiler 68 // to the VM. 69 70 ciObject* ciEnv::_null_object_instance; 71 72 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL; 73 WK_KLASSES_DO(WK_KLASS_DEFN) 74 #undef WK_KLASS_DEFN 75 76 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; 77 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; 78 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; 79 80 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL; 81 jobject ciEnv::_ArrayStoreException_handle = NULL; 82 jobject ciEnv::_ClassCastException_handle = NULL; 83 84 #ifndef PRODUCT 85 static bool firstEnv = true; 86 #endif /* PRODUCT */ 87 88 // ------------------------------------------------------------------ 89 // ciEnv::ciEnv 90 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) 91 : _ciEnv_arena(mtCompiler) { 92 VM_ENTRY_MARK; 93 94 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 95 thread->set_env(this); 96 assert(ciEnv::current() == this, "sanity"); 97 98 _oop_recorder = NULL; 99 _debug_info = NULL; 100 _dependencies = NULL; 101 _failure_reason = NULL; 102 _compilable = MethodCompilable; 103 _break_at_compile = false; 104 _compiler_data = NULL; 105 #ifndef PRODUCT 106 assert(!firstEnv, "not initialized properly"); 107 #endif /* !PRODUCT */ 108 109 _system_dictionary_modification_counter = system_dictionary_modification_counter; 110 _num_inlined_bytecodes = 0; 111 assert(task == NULL || thread->task() == task, "sanity"); 112 _task = task; 113 _log = NULL; 114 115 // Temporary buffer for creating symbols and such. 116 _name_buffer = NULL; 117 _name_buffer_len = 0; 118 119 _arena = &_ciEnv_arena; 120 _factory = new (_arena) ciObjectFactory(_arena, 128); 121 122 // Preload commonly referenced system ciObjects. 123 124 // During VM initialization, these instances have not yet been created. 125 // Assertions ensure that these instances are not accessed before 126 // their initialization. 127 128 assert(Universe::is_fully_initialized(), "should be complete"); 129 130 oop o = Universe::null_ptr_exception_instance(); 131 assert(o != NULL, "should have been initialized"); 132 _NullPointerException_instance = get_object(o)->as_instance(); 133 o = Universe::arithmetic_exception_instance(); 134 assert(o != NULL, "should have been initialized"); 135 _ArithmeticException_instance = get_object(o)->as_instance(); 136 137 _ArrayIndexOutOfBoundsException_instance = NULL; 138 _ArrayStoreException_instance = NULL; 139 _ClassCastException_instance = NULL; 140 _the_null_string = NULL; 141 _the_min_jint_string = NULL; 142 143 _jvmti_can_hotswap_or_post_breakpoint = false; 144 _jvmti_can_access_local_variables = false; 145 _jvmti_can_post_on_exceptions = false; 146 _jvmti_can_pop_frame = false; 147 } 148 149 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) { 150 ASSERT_IN_VM; 151 152 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 153 CompilerThread* current_thread = CompilerThread::current(); 154 assert(current_thread->env() == NULL, "must be"); 155 current_thread->set_env(this); 156 assert(ciEnv::current() == this, "sanity"); 157 158 _oop_recorder = NULL; 159 _debug_info = NULL; 160 _dependencies = NULL; 161 _failure_reason = NULL; 162 _compilable = MethodCompilable_never; 163 _break_at_compile = false; 164 _compiler_data = NULL; 165 #ifndef PRODUCT 166 assert(firstEnv, "must be first"); 167 firstEnv = false; 168 #endif /* !PRODUCT */ 169 170 _system_dictionary_modification_counter = 0; 171 _num_inlined_bytecodes = 0; 172 _task = NULL; 173 _log = NULL; 174 175 // Temporary buffer for creating symbols and such. 176 _name_buffer = NULL; 177 _name_buffer_len = 0; 178 179 _arena = arena; 180 _factory = new (_arena) ciObjectFactory(_arena, 128); 181 182 // Preload commonly referenced system ciObjects. 183 184 // During VM initialization, these instances have not yet been created. 185 // Assertions ensure that these instances are not accessed before 186 // their initialization. 187 188 assert(Universe::is_fully_initialized(), "must be"); 189 190 _NullPointerException_instance = NULL; 191 _ArithmeticException_instance = NULL; 192 _ArrayIndexOutOfBoundsException_instance = NULL; 193 _ArrayStoreException_instance = NULL; 194 _ClassCastException_instance = NULL; 195 _the_null_string = NULL; 196 _the_min_jint_string = NULL; 197 198 _jvmti_can_hotswap_or_post_breakpoint = false; 199 _jvmti_can_access_local_variables = false; 200 _jvmti_can_post_on_exceptions = false; 201 _jvmti_can_pop_frame = false; 202 } 203 204 ciEnv::~ciEnv() { 205 CompilerThread* current_thread = CompilerThread::current(); 206 _factory->remove_symbols(); 207 // Need safepoint to clear the env on the thread. RedefineClasses might 208 // be reading it. 209 GUARDED_VM_ENTRY(current_thread->set_env(NULL);) 210 } 211 212 // ------------------------------------------------------------------ 213 // Cache Jvmti state 214 void ciEnv::cache_jvmti_state() { 215 VM_ENTRY_MARK; 216 // Get Jvmti capabilities under lock to get consistant values. 217 MutexLocker mu(JvmtiThreadState_lock); 218 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); 219 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); 220 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); 221 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame(); 222 } 223 224 bool ciEnv::should_retain_local_variables() const { 225 return _jvmti_can_access_local_variables || _jvmti_can_pop_frame; 226 } 227 228 bool ciEnv::jvmti_state_changed() const { 229 if (!_jvmti_can_access_local_variables && 230 JvmtiExport::can_access_local_variables()) { 231 return true; 232 } 233 if (!_jvmti_can_hotswap_or_post_breakpoint && 234 JvmtiExport::can_hotswap_or_post_breakpoint()) { 235 return true; 236 } 237 if (!_jvmti_can_post_on_exceptions && 238 JvmtiExport::can_post_on_exceptions()) { 239 return true; 240 } 241 if (!_jvmti_can_pop_frame && 242 JvmtiExport::can_pop_frame()) { 243 return true; 244 } 245 return false; 246 } 247 248 // ------------------------------------------------------------------ 249 // Cache DTrace flags 250 void ciEnv::cache_dtrace_flags() { 251 // Need lock? 252 _dtrace_extended_probes = ExtendedDTraceProbes; 253 if (_dtrace_extended_probes) { 254 _dtrace_monitor_probes = true; 255 _dtrace_method_probes = true; 256 _dtrace_alloc_probes = true; 257 } else { 258 _dtrace_monitor_probes = DTraceMonitorProbes; 259 _dtrace_method_probes = DTraceMethodProbes; 260 _dtrace_alloc_probes = DTraceAllocProbes; 261 } 262 } 263 264 // ------------------------------------------------------------------ 265 // helper for lazy exception creation 266 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { 267 VM_ENTRY_MARK; 268 if (handle == NULL) { 269 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. 270 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD); 271 jobject objh = NULL; 272 if (!HAS_PENDING_EXCEPTION && k != NULL) { 273 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD); 274 if (!HAS_PENDING_EXCEPTION) 275 objh = JNIHandles::make_global(obj); 276 } 277 if (HAS_PENDING_EXCEPTION) { 278 CLEAR_PENDING_EXCEPTION; 279 } else { 280 handle = objh; 281 } 282 } 283 oop obj = JNIHandles::resolve(handle); 284 return obj == NULL? NULL: get_object(obj)->as_instance(); 285 } 286 287 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { 288 if (_ArrayIndexOutOfBoundsException_instance == NULL) { 289 _ArrayIndexOutOfBoundsException_instance 290 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, 291 vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); 292 } 293 return _ArrayIndexOutOfBoundsException_instance; 294 } 295 ciInstance* ciEnv::ArrayStoreException_instance() { 296 if (_ArrayStoreException_instance == NULL) { 297 _ArrayStoreException_instance 298 = get_or_create_exception(_ArrayStoreException_handle, 299 vmSymbols::java_lang_ArrayStoreException()); 300 } 301 return _ArrayStoreException_instance; 302 } 303 ciInstance* ciEnv::ClassCastException_instance() { 304 if (_ClassCastException_instance == NULL) { 305 _ClassCastException_instance 306 = get_or_create_exception(_ClassCastException_handle, 307 vmSymbols::java_lang_ClassCastException()); 308 } 309 return _ClassCastException_instance; 310 } 311 312 ciInstance* ciEnv::the_null_string() { 313 if (_the_null_string == NULL) { 314 VM_ENTRY_MARK; 315 _the_null_string = get_object(Universe::the_null_string())->as_instance(); 316 } 317 return _the_null_string; 318 } 319 320 ciInstance* ciEnv::the_min_jint_string() { 321 if (_the_min_jint_string == NULL) { 322 VM_ENTRY_MARK; 323 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); 324 } 325 return _the_min_jint_string; 326 } 327 328 // ------------------------------------------------------------------ 329 // ciEnv::get_method_from_handle 330 ciMethod* ciEnv::get_method_from_handle(Method* method) { 331 VM_ENTRY_MARK; 332 return get_metadata(method)->as_method(); 333 } 334 335 // ------------------------------------------------------------------ 336 // ciEnv::array_element_offset_in_bytes 337 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { 338 VM_ENTRY_MARK; 339 objArrayOop a = (objArrayOop)a_h->get_oop(); 340 assert(a->is_objArray(), ""); 341 int length = a->length(); 342 oop o = o_h->get_oop(); 343 for (int i = 0; i < length; i++) { 344 if (a->obj_at(i) == o) return i; 345 } 346 return -1; 347 } 348 349 350 // ------------------------------------------------------------------ 351 // ciEnv::check_klass_accessiblity 352 // 353 // Note: the logic of this method should mirror the logic of 354 // ConstantPool::verify_constant_pool_resolve. 355 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, 356 Klass* resolved_klass) { 357 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { 358 return true; 359 } 360 if (accessing_klass->is_obj_array_klass()) { 361 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); 362 } 363 if (!accessing_klass->is_instance_klass()) { 364 return true; 365 } 366 367 if (resolved_klass->oop_is_objArray()) { 368 // Find the element klass, if this is an array. 369 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass(); 370 } 371 if (resolved_klass->oop_is_instance()) { 372 return Reflection::verify_class_access(accessing_klass->get_Klass(), 373 resolved_klass, 374 true); 375 } 376 return true; 377 } 378 379 // ------------------------------------------------------------------ 380 // ciEnv::get_klass_by_name_impl 381 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, 382 constantPoolHandle cpool, 383 ciSymbol* name, 384 bool require_local) { 385 ASSERT_IN_VM; 386 EXCEPTION_CONTEXT; 387 388 // Now we need to check the SystemDictionary 389 Symbol* sym = name->get_symbol(); 390 if (sym->byte_at(0) == 'L' && 391 sym->byte_at(sym->utf8_length()-1) == ';') { 392 // This is a name from a signature. Strip off the trimmings. 393 // Call recursive to keep scope of strippedsym. 394 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1, 395 sym->utf8_length()-2, 396 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); 397 ciSymbol* strippedname = get_symbol(strippedsym); 398 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); 399 } 400 401 // Check for prior unloaded klass. The SystemDictionary's answers 402 // can vary over time but the compiler needs consistency. 403 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); 404 if (unloaded_klass != NULL) { 405 if (require_local) return NULL; 406 return unloaded_klass; 407 } 408 409 Handle loader(THREAD, (oop)NULL); 410 Handle domain(THREAD, (oop)NULL); 411 if (accessing_klass != NULL) { 412 loader = Handle(THREAD, accessing_klass->loader()); 413 domain = Handle(THREAD, accessing_klass->protection_domain()); 414 } 415 416 // setup up the proper type to return on OOM 417 ciKlass* fail_type; 418 if (sym->byte_at(0) == '[') { 419 fail_type = _unloaded_ciobjarrayklass; 420 } else { 421 fail_type = _unloaded_ciinstance_klass; 422 } 423 KlassHandle found_klass; 424 { 425 ttyUnlocker ttyul; // release tty lock to avoid ordering problems 426 MutexLocker ml(Compile_lock); 427 Klass* kls; 428 if (!require_local) { 429 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, 430 KILL_COMPILE_ON_FATAL_(fail_type)); 431 } else { 432 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain, 433 KILL_COMPILE_ON_FATAL_(fail_type)); 434 } 435 found_klass = KlassHandle(THREAD, kls); 436 } 437 438 // If we fail to find an array klass, look again for its element type. 439 // The element type may be available either locally or via constraints. 440 // In either case, if we can find the element type in the system dictionary, 441 // we must build an array type around it. The CI requires array klasses 442 // to be loaded if their element klasses are loaded, except when memory 443 // is exhausted. 444 if (sym->byte_at(0) == '[' && 445 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) { 446 // We have an unloaded array. 447 // Build it on the fly if the element class exists. 448 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1, 449 sym->utf8_length()-1, 450 KILL_COMPILE_ON_FATAL_(fail_type)); 451 452 // Get element ciKlass recursively. 453 ciKlass* elem_klass = 454 get_klass_by_name_impl(accessing_klass, 455 cpool, 456 get_symbol(elem_sym), 457 require_local); 458 if (elem_klass != NULL && elem_klass->is_loaded()) { 459 // Now make an array for it 460 return ciObjArrayKlass::make_impl(elem_klass); 461 } 462 } 463 464 if (found_klass() == NULL && !cpool.is_null() && cpool->has_preresolution()) { 465 // Look inside the constant pool for pre-resolved class entries. 466 for (int i = cpool->length() - 1; i >= 1; i--) { 467 if (cpool->tag_at(i).is_klass()) { 468 Klass* kls = cpool->resolved_klass_at(i); 469 if (kls->name() == sym) { 470 found_klass = KlassHandle(THREAD, kls); 471 break; 472 } 473 } 474 } 475 } 476 477 if (found_klass() != NULL) { 478 // Found it. Build a CI handle. 479 return get_klass(found_klass()); 480 } 481 482 if (require_local) return NULL; 483 484 // Not yet loaded into the VM, or not governed by loader constraints. 485 // Make a CI representative for it. 486 return get_unloaded_klass(accessing_klass, name); 487 } 488 489 // ------------------------------------------------------------------ 490 // ciEnv::get_klass_by_name 491 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, 492 ciSymbol* klass_name, 493 bool require_local) { 494 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, 495 constantPoolHandle(), 496 klass_name, 497 require_local);) 498 } 499 500 // ------------------------------------------------------------------ 501 // ciEnv::get_klass_by_index_impl 502 // 503 // Implementation of get_klass_by_index. 504 ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool, 505 int index, 506 bool& is_accessible, 507 ciInstanceKlass* accessor) { 508 EXCEPTION_CONTEXT; 509 KlassHandle klass; // = NULL; 510 Symbol* klass_name = NULL; 511 512 if (cpool->tag_at(index).is_symbol()) { 513 klass_name = cpool->symbol_at(index); 514 } else { 515 // Check if it's resolved if it's not a symbol constant pool entry. 516 klass = KlassHandle(THREAD, ConstantPool::klass_at_if_loaded(cpool, index)); 517 // Try to look it up by name. 518 if (klass.is_null()) { 519 klass_name = cpool->klass_name_at(index); 520 } 521 } 522 523 if (klass.is_null()) { 524 // Not found in constant pool. Use the name to do the lookup. 525 ciKlass* k = get_klass_by_name_impl(accessor, 526 cpool, 527 get_symbol(klass_name), 528 false); 529 // Calculate accessibility the hard way. 530 if (!k->is_loaded()) { 531 is_accessible = false; 532 } else if (k->loader() != accessor->loader() && 533 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) { 534 // Loaded only remotely. Not linked yet. 535 is_accessible = false; 536 } else { 537 // Linked locally, and we must also check public/private, etc. 538 is_accessible = check_klass_accessibility(accessor, k->get_Klass()); 539 } 540 return k; 541 } 542 543 // Check for prior unloaded klass. The SystemDictionary's answers 544 // can vary over time but the compiler needs consistency. 545 ciSymbol* name = get_symbol(klass()->name()); 546 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); 547 if (unloaded_klass != NULL) { 548 is_accessible = false; 549 return unloaded_klass; 550 } 551 552 // It is known to be accessible, since it was found in the constant pool. 553 is_accessible = true; 554 return get_klass(klass()); 555 } 556 557 // ------------------------------------------------------------------ 558 // ciEnv::get_klass_by_index 559 // 560 // Get a klass from the constant pool. 561 ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool, 562 int index, 563 bool& is_accessible, 564 ciInstanceKlass* accessor) { 565 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) 566 } 567 568 // ------------------------------------------------------------------ 569 // ciEnv::get_constant_by_index_impl 570 // 571 // Implementation of get_constant_by_index(). 572 ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool, 573 int pool_index, int cache_index, 574 ciInstanceKlass* accessor) { 575 bool ignore_will_link; 576 EXCEPTION_CONTEXT; 577 int index = pool_index; 578 if (cache_index >= 0) { 579 assert(index < 0, "only one kind of index at a time"); 580 oop obj = cpool->resolved_references()->obj_at(cache_index); 581 if (obj != NULL) { 582 ciObject* ciobj = get_object(obj); 583 if (ciobj->is_array()) { 584 return ciConstant(T_ARRAY, ciobj); 585 } else { 586 assert(ciobj->is_instance(), "should be an instance"); 587 return ciConstant(T_OBJECT, ciobj); 588 } 589 } 590 index = cpool->object_to_cp_index(cache_index); 591 } 592 constantTag tag = cpool->tag_at(index); 593 if (tag.is_int()) { 594 return ciConstant(T_INT, (jint)cpool->int_at(index)); 595 } else if (tag.is_long()) { 596 return ciConstant((jlong)cpool->long_at(index)); 597 } else if (tag.is_float()) { 598 return ciConstant((jfloat)cpool->float_at(index)); 599 } else if (tag.is_double()) { 600 return ciConstant((jdouble)cpool->double_at(index)); 601 } else if (tag.is_string()) { 602 oop string = NULL; 603 assert(cache_index >= 0, "should have a cache index"); 604 if (cpool->is_pseudo_string_at(index)) { 605 string = cpool->pseudo_string_at(index, cache_index); 606 } else { 607 string = cpool->string_at(index, cache_index, THREAD); 608 if (HAS_PENDING_EXCEPTION) { 609 CLEAR_PENDING_EXCEPTION; 610 record_out_of_memory_failure(); 611 return ciConstant(); 612 } 613 } 614 ciObject* constant = get_object(string); 615 if (constant->is_array()) { 616 return ciConstant(T_ARRAY, constant); 617 } else { 618 assert (constant->is_instance(), "must be an instance, or not? "); 619 return ciConstant(T_OBJECT, constant); 620 } 621 } else if (tag.is_klass() || tag.is_unresolved_klass()) { 622 // 4881222: allow ldc to take a class type 623 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); 624 if (HAS_PENDING_EXCEPTION) { 625 CLEAR_PENDING_EXCEPTION; 626 record_out_of_memory_failure(); 627 return ciConstant(); 628 } 629 assert (klass->is_instance_klass() || klass->is_array_klass(), 630 "must be an instance or array klass "); 631 return ciConstant(T_OBJECT, klass->java_mirror()); 632 } else if (tag.is_method_type()) { 633 // must execute Java code to link this CP entry into cache[i].f1 634 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); 635 ciObject* ciobj = get_unloaded_method_type_constant(signature); 636 return ciConstant(T_OBJECT, ciobj); 637 } else if (tag.is_method_handle()) { 638 // must execute Java code to link this CP entry into cache[i].f1 639 int ref_kind = cpool->method_handle_ref_kind_at(index); 640 int callee_index = cpool->method_handle_klass_index_at(index); 641 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); 642 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); 643 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); 644 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); 645 return ciConstant(T_OBJECT, ciobj); 646 } else { 647 ShouldNotReachHere(); 648 return ciConstant(); 649 } 650 } 651 652 // ------------------------------------------------------------------ 653 // ciEnv::get_constant_by_index 654 // 655 // Pull a constant out of the constant pool. How appropriate. 656 // 657 // Implementation note: this query is currently in no way cached. 658 ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool, 659 int pool_index, int cache_index, 660 ciInstanceKlass* accessor) { 661 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) 662 } 663 664 // ------------------------------------------------------------------ 665 // ciEnv::get_field_by_index_impl 666 // 667 // Implementation of get_field_by_index. 668 // 669 // Implementation note: the results of field lookups are cached 670 // in the accessor klass. 671 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, 672 int index) { 673 ciConstantPoolCache* cache = accessor->field_cache(); 674 if (cache == NULL) { 675 ciField* field = new (arena()) ciField(accessor, index); 676 return field; 677 } else { 678 ciField* field = (ciField*)cache->get(index); 679 if (field == NULL) { 680 field = new (arena()) ciField(accessor, index); 681 cache->insert(index, field); 682 } 683 return field; 684 } 685 } 686 687 // ------------------------------------------------------------------ 688 // ciEnv::get_field_by_index 689 // 690 // Get a field by index from a klass's constant pool. 691 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, 692 int index) { 693 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) 694 } 695 696 // ------------------------------------------------------------------ 697 // ciEnv::lookup_method 698 // 699 // Perform an appropriate method lookup based on accessor, holder, 700 // name, signature, and bytecode. 701 Method* ciEnv::lookup_method(InstanceKlass* accessor, 702 InstanceKlass* holder, 703 Symbol* name, 704 Symbol* sig, 705 Bytecodes::Code bc) { 706 EXCEPTION_CONTEXT; 707 KlassHandle h_accessor(THREAD, accessor); 708 KlassHandle h_holder(THREAD, holder); 709 LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL)); 710 methodHandle dest_method; 711 switch (bc) { 712 case Bytecodes::_invokestatic: 713 dest_method = 714 LinkResolver::resolve_static_call_or_null(h_holder, name, sig, h_accessor); 715 break; 716 case Bytecodes::_invokespecial: 717 dest_method = 718 LinkResolver::resolve_special_call_or_null(h_holder, name, sig, h_accessor); 719 break; 720 case Bytecodes::_invokeinterface: 721 dest_method = 722 LinkResolver::linktime_resolve_interface_method_or_null(h_holder, name, sig, 723 h_accessor, true); 724 break; 725 case Bytecodes::_invokevirtual: 726 dest_method = 727 LinkResolver::linktime_resolve_virtual_method_or_null(h_holder, name, sig, 728 h_accessor, true); 729 break; 730 default: ShouldNotReachHere(); 731 } 732 733 return dest_method(); 734 } 735 736 737 // ------------------------------------------------------------------ 738 // ciEnv::get_method_by_index_impl 739 ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool, 740 int index, Bytecodes::Code bc, 741 ciInstanceKlass* accessor) { 742 if (bc == Bytecodes::_invokedynamic) { 743 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index); 744 bool is_resolved = !cpce->is_f1_null(); 745 // FIXME: code generation could allow for null (unlinked) call site 746 // The call site could be made patchable as follows: 747 // Load the appendix argument from the constant pool. 748 // Test the appendix argument and jump to a known deopt routine if it is null. 749 // Jump through a patchable call site, which is initially a deopt routine. 750 // Patch the call site to the nmethod entry point of the static compiled lambda form. 751 // As with other two-component call sites, both values must be independently verified. 752 753 if (is_resolved) { 754 // Get the invoker Method* from the constant pool. 755 // (The appendix argument, if any, will be noted in the method's signature.) 756 Method* adapter = cpce->f1_as_method(); 757 return get_method(adapter); 758 } 759 760 // Fake a method that is equivalent to a declared method. 761 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass()); 762 ciSymbol* name = ciSymbol::invokeBasic_name(); 763 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index)); 764 return get_unloaded_method(holder, name, signature, accessor); 765 } else { 766 const int holder_index = cpool->klass_ref_index_at(index); 767 bool holder_is_accessible; 768 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); 769 ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder); 770 771 // Get the method's name and signature. 772 Symbol* name_sym = cpool->name_ref_at(index); 773 Symbol* sig_sym = cpool->signature_ref_at(index); 774 775 if (cpool->has_preresolution() 776 || (holder == ciEnv::MethodHandle_klass() && 777 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) { 778 // Short-circuit lookups for JSR 292-related call sites. 779 // That is, do not rely only on name-based lookups, because they may fail 780 // if the names are not resolvable in the boot class loader (7056328). 781 switch (bc) { 782 case Bytecodes::_invokevirtual: 783 case Bytecodes::_invokeinterface: 784 case Bytecodes::_invokespecial: 785 case Bytecodes::_invokestatic: 786 { 787 Method* m = ConstantPool::method_at_if_loaded(cpool, index); 788 if (m != NULL) { 789 return get_method(m); 790 } 791 } 792 break; 793 } 794 } 795 796 if (holder_is_accessible) { // Our declared holder is loaded. 797 InstanceKlass* lookup = declared_holder->get_instanceKlass(); 798 Method* m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc); 799 if (m != NULL && 800 (bc == Bytecodes::_invokestatic 801 ? m->method_holder()->is_not_initialized() 802 : !m->method_holder()->is_loaded())) { 803 m = NULL; 804 } 805 #ifdef ASSERT 806 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) { 807 m = NULL; 808 } 809 #endif 810 if (m != NULL) { 811 // We found the method. 812 return get_method(m); 813 } 814 } 815 816 // Either the declared holder was not loaded, or the method could 817 // not be found. Create a dummy ciMethod to represent the failed 818 // lookup. 819 ciSymbol* name = get_symbol(name_sym); 820 ciSymbol* signature = get_symbol(sig_sym); 821 return get_unloaded_method(declared_holder, name, signature, accessor); 822 } 823 } 824 825 826 // ------------------------------------------------------------------ 827 // ciEnv::get_instance_klass_for_declared_method_holder 828 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { 829 // For the case of <array>.clone(), the method holder can be a ciArrayKlass 830 // instead of a ciInstanceKlass. For that case simply pretend that the 831 // declared holder is Object.clone since that's where the call will bottom out. 832 // A more correct fix would trickle out through many interfaces in CI, 833 // requiring ciInstanceKlass* to become ciKlass* and many more places would 834 // require checks to make sure the expected type was found. Given that this 835 // only occurs for clone() the more extensive fix seems like overkill so 836 // instead we simply smear the array type into Object. 837 guarantee(method_holder != NULL, "no method holder"); 838 if (method_holder->is_instance_klass()) { 839 return method_holder->as_instance_klass(); 840 } else if (method_holder->is_array_klass()) { 841 return current()->Object_klass(); 842 } else { 843 ShouldNotReachHere(); 844 } 845 return NULL; 846 } 847 848 849 // ------------------------------------------------------------------ 850 // ciEnv::get_method_by_index 851 ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool, 852 int index, Bytecodes::Code bc, 853 ciInstanceKlass* accessor) { 854 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);) 855 } 856 857 858 // ------------------------------------------------------------------ 859 // ciEnv::name_buffer 860 char *ciEnv::name_buffer(int req_len) { 861 if (_name_buffer_len < req_len) { 862 if (_name_buffer == NULL) { 863 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); 864 _name_buffer_len = req_len; 865 } else { 866 _name_buffer = 867 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); 868 _name_buffer_len = req_len; 869 } 870 } 871 return _name_buffer; 872 } 873 874 // ------------------------------------------------------------------ 875 // ciEnv::is_in_vm 876 bool ciEnv::is_in_vm() { 877 return JavaThread::current()->thread_state() == _thread_in_vm; 878 } 879 880 bool ciEnv::system_dictionary_modification_counter_changed() { 881 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); 882 } 883 884 // ------------------------------------------------------------------ 885 // ciEnv::validate_compile_task_dependencies 886 // 887 // Check for changes during compilation (e.g. class loads, evolution, 888 // breakpoints, call site invalidation). 889 void ciEnv::validate_compile_task_dependencies(ciMethod* target) { 890 if (failing()) return; // no need for further checks 891 892 // First, check non-klass dependencies as we might return early and 893 // not check klass dependencies if the system dictionary 894 // modification counter hasn't changed (see below). 895 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { 896 if (deps.is_klass_type()) continue; // skip klass dependencies 897 Klass* witness = deps.check_dependency(); 898 if (witness != NULL) { 899 record_failure("invalid non-klass dependency"); 900 return; 901 } 902 } 903 904 // Klass dependencies must be checked when the system dictionary 905 // changes. If logging is enabled all violated dependences will be 906 // recorded in the log. In debug mode check dependencies even if 907 // the system dictionary hasn't changed to verify that no invalid 908 // dependencies were inserted. Any violated dependences in this 909 // case are dumped to the tty. 910 bool counter_changed = system_dictionary_modification_counter_changed(); 911 912 bool verify_deps = trueInDebug; 913 if (!counter_changed && !verify_deps) return; 914 915 int klass_violations = 0; 916 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { 917 if (!deps.is_klass_type()) continue; // skip non-klass dependencies 918 Klass* witness = deps.check_dependency(); 919 if (witness != NULL) { 920 klass_violations++; 921 if (!counter_changed) { 922 // Dependence failed but counter didn't change. Log a message 923 // describing what failed and allow the assert at the end to 924 // trigger. 925 deps.print_dependency(witness); 926 } else if (xtty == NULL) { 927 // If we're not logging then a single violation is sufficient, 928 // otherwise we want to log all the dependences which were 929 // violated. 930 break; 931 } 932 } 933 } 934 935 if (klass_violations != 0) { 936 #ifdef ASSERT 937 if (!counter_changed && !PrintCompilation) { 938 // Print out the compile task that failed 939 _task->print_tty(); 940 } 941 #endif 942 assert(counter_changed, "failed dependencies, but counter didn't change"); 943 record_failure("concurrent class loading"); 944 } 945 } 946 947 // ------------------------------------------------------------------ 948 // ciEnv::register_method 949 void ciEnv::register_method(ciMethod* target, 950 int entry_bci, 951 CodeOffsets* offsets, 952 int orig_pc_offset, 953 CodeBuffer* code_buffer, 954 int frame_words, 955 OopMapSet* oop_map_set, 956 ExceptionHandlerTable* handler_table, 957 ImplicitExceptionTable* inc_table, 958 AbstractCompiler* compiler, 959 int comp_level, 960 bool has_unsafe_access, 961 bool has_wide_vectors, 962 RTMState rtm_state) { 963 VM_ENTRY_MARK; 964 nmethod* nm = NULL; 965 { 966 // To prevent compile queue updates. 967 MutexLocker locker(MethodCompileQueue_lock, THREAD); 968 969 // Prevent SystemDictionary::add_to_hierarchy from running 970 // and invalidating our dependencies until we install this method. 971 // No safepoints are allowed. Otherwise, class redefinition can occur in between. 972 MutexLocker ml(Compile_lock); 973 No_Safepoint_Verifier nsv; 974 975 // Change in Jvmti state may invalidate compilation. 976 if (!failing() && jvmti_state_changed()) { 977 record_failure("Jvmti state change invalidated dependencies"); 978 } 979 980 // Change in DTrace flags may invalidate compilation. 981 if (!failing() && 982 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || 983 (!dtrace_method_probes() && DTraceMethodProbes) || 984 (!dtrace_alloc_probes() && DTraceAllocProbes) )) { 985 record_failure("DTrace flags change invalidated dependencies"); 986 } 987 988 if (!failing()) { 989 if (log() != NULL) { 990 // Log the dependencies which this compilation declares. 991 dependencies()->log_all_dependencies(); 992 } 993 994 // Encode the dependencies now, so we can check them right away. 995 dependencies()->encode_content_bytes(); 996 997 // Check for {class loads, evolution, breakpoints, ...} during compilation 998 validate_compile_task_dependencies(target); 999 } 1000 1001 methodHandle method(THREAD, target->get_Method()); 1002 1003 #if INCLUDE_RTM_OPT 1004 if (!failing() && (rtm_state != NoRTM) && 1005 (method()->method_data() != NULL) && 1006 (method()->method_data()->rtm_state() != rtm_state)) { 1007 // Preemptive decompile if rtm state was changed. 1008 record_failure("RTM state change invalidated rtm code"); 1009 } 1010 #endif 1011 1012 if (failing()) { 1013 // While not a true deoptimization, it is a preemptive decompile. 1014 MethodData* mdo = method()->method_data(); 1015 if (mdo != NULL) { 1016 mdo->inc_decompile_count(); 1017 } 1018 1019 // All buffers in the CodeBuffer are allocated in the CodeCache. 1020 // If the code buffer is created on each compile attempt 1021 // as in C2, then it must be freed. 1022 code_buffer->free_blob(); 1023 return; 1024 } 1025 1026 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); 1027 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); 1028 1029 nm = nmethod::new_nmethod(method, 1030 compile_id(), 1031 entry_bci, 1032 offsets, 1033 orig_pc_offset, 1034 debug_info(), dependencies(), code_buffer, 1035 frame_words, oop_map_set, 1036 handler_table, inc_table, 1037 compiler, comp_level); 1038 // Free codeBlobs 1039 code_buffer->free_blob(); 1040 1041 if (nm != NULL) { 1042 nm->set_has_unsafe_access(has_unsafe_access); 1043 nm->set_has_wide_vectors(has_wide_vectors); 1044 #if INCLUDE_RTM_OPT 1045 nm->set_rtm_state(rtm_state); 1046 #endif 1047 1048 // Record successful registration. 1049 // (Put nm into the task handle *before* publishing to the Java heap.) 1050 if (task() != NULL) { 1051 task()->set_code(nm); 1052 } 1053 1054 if (entry_bci == InvocationEntryBci) { 1055 if (TieredCompilation) { 1056 // If there is an old version we're done with it 1057 nmethod* old = method->code(); 1058 if (TraceMethodReplacement && old != NULL) { 1059 ResourceMark rm; 1060 char *method_name = method->name_and_sig_as_C_string(); 1061 tty->print_cr("Replacing method %s", method_name); 1062 } 1063 if (old != NULL) { 1064 old->make_not_entrant(); 1065 } 1066 } 1067 if (TraceNMethodInstalls) { 1068 ResourceMark rm; 1069 char *method_name = method->name_and_sig_as_C_string(); 1070 ttyLocker ttyl; 1071 tty->print_cr("Installing method (%d) %s ", 1072 comp_level, 1073 method_name); 1074 } 1075 // Allow the code to be executed 1076 method->set_code(method, nm); 1077 } else { 1078 if (TraceNMethodInstalls) { 1079 ResourceMark rm; 1080 char *method_name = method->name_and_sig_as_C_string(); 1081 ttyLocker ttyl; 1082 tty->print_cr("Installing osr method (%d) %s @ %d", 1083 comp_level, 1084 method_name, 1085 entry_bci); 1086 } 1087 method->method_holder()->add_osr_nmethod(nm); 1088 } 1089 } 1090 } // safepoints are allowed again 1091 1092 if (nm != NULL) { 1093 // JVMTI -- compiled method notification (must be done outside lock) 1094 nm->post_compiled_method_load_event(); 1095 } else { 1096 // The CodeCache is full. 1097 record_failure("code cache is full"); 1098 } 1099 } 1100 1101 1102 // ------------------------------------------------------------------ 1103 // ciEnv::find_system_klass 1104 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { 1105 VM_ENTRY_MARK; 1106 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false); 1107 } 1108 1109 // ------------------------------------------------------------------ 1110 // ciEnv::comp_level 1111 int ciEnv::comp_level() { 1112 if (task() == NULL) return CompLevel_highest_tier; 1113 return task()->comp_level(); 1114 } 1115 1116 // ------------------------------------------------------------------ 1117 // ciEnv::compile_id 1118 uint ciEnv::compile_id() { 1119 if (task() == NULL) return 0; 1120 return task()->compile_id(); 1121 } 1122 1123 // ------------------------------------------------------------------ 1124 // ciEnv::notice_inlined_method() 1125 void ciEnv::notice_inlined_method(ciMethod* method) { 1126 _num_inlined_bytecodes += method->code_size_for_inlining(); 1127 } 1128 1129 // ------------------------------------------------------------------ 1130 // ciEnv::num_inlined_bytecodes() 1131 int ciEnv::num_inlined_bytecodes() const { 1132 return _num_inlined_bytecodes; 1133 } 1134 1135 // ------------------------------------------------------------------ 1136 // ciEnv::record_failure() 1137 void ciEnv::record_failure(const char* reason) { 1138 if (_failure_reason == NULL) { 1139 // Record the first failure reason. 1140 _failure_reason = reason; 1141 } 1142 } 1143 1144 // ------------------------------------------------------------------ 1145 // ciEnv::record_method_not_compilable() 1146 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) { 1147 int new_compilable = 1148 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ; 1149 1150 // Only note transitions to a worse state 1151 if (new_compilable > _compilable) { 1152 if (log() != NULL) { 1153 if (all_tiers) { 1154 log()->elem("method_not_compilable"); 1155 } else { 1156 log()->elem("method_not_compilable_at_tier level='%d'", 1157 current()->task()->comp_level()); 1158 } 1159 } 1160 _compilable = new_compilable; 1161 1162 // Reset failure reason; this one is more important. 1163 _failure_reason = NULL; 1164 record_failure(reason); 1165 } 1166 } 1167 1168 // ------------------------------------------------------------------ 1169 // ciEnv::record_out_of_memory_failure() 1170 void ciEnv::record_out_of_memory_failure() { 1171 // If memory is low, we stop compiling methods. 1172 record_method_not_compilable("out of memory"); 1173 } 1174 1175 ciInstance* ciEnv::unloaded_ciinstance() { 1176 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();) 1177 } 1178 1179 // ------------------------------------------------------------------ 1180 // ciEnv::dump_replay_data* 1181 1182 // Don't change thread state and acquire any locks. 1183 // Safe to call from VM error reporter. 1184 1185 void ciEnv::dump_compile_data(outputStream* out) { 1186 CompileTask* task = this->task(); 1187 Method* method = task->method(); 1188 int entry_bci = task->osr_bci(); 1189 int comp_level = task->comp_level(); 1190 out->print("compile %s %s %s %d %d", 1191 method->klass_name()->as_quoted_ascii(), 1192 method->name()->as_quoted_ascii(), 1193 method->signature()->as_quoted_ascii(), 1194 entry_bci, comp_level); 1195 if (compiler_data() != NULL) { 1196 if (is_c2_compile(comp_level)) { // C2 or Shark 1197 #ifdef COMPILER2 1198 // Dump C2 inlining data. 1199 ((Compile*)compiler_data())->dump_inline_data(out); 1200 #endif 1201 } else if (is_c1_compile(comp_level)) { // C1 1202 #ifdef COMPILER1 1203 // Dump C1 inlining data. 1204 ((Compilation*)compiler_data())->dump_inline_data(out); 1205 #endif 1206 } 1207 } 1208 out->cr(); 1209 } 1210 1211 void ciEnv::dump_replay_data_unsafe(outputStream* out) { 1212 ResourceMark rm; 1213 #if INCLUDE_JVMTI 1214 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables); 1215 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint); 1216 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions); 1217 #endif // INCLUDE_JVMTI 1218 1219 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata(); 1220 out->print_cr("# %d ciObject found", objects->length()); 1221 for (int i = 0; i < objects->length(); i++) { 1222 objects->at(i)->dump_replay_data(out); 1223 } 1224 dump_compile_data(out); 1225 out->flush(); 1226 } 1227 1228 void ciEnv::dump_replay_data(outputStream* out) { 1229 GUARDED_VM_ENTRY( 1230 MutexLocker ml(Compile_lock); 1231 dump_replay_data_unsafe(out); 1232 ) 1233 } 1234 1235 void ciEnv::dump_replay_data(int compile_id) { 1236 static char buffer[O_BUFLEN]; 1237 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id); 1238 if (ret > 0) { 1239 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1240 if (fd != -1) { 1241 FILE* replay_data_file = os::open(fd, "w"); 1242 if (replay_data_file != NULL) { 1243 fileStream replay_data_stream(replay_data_file, /*need_close=*/true); 1244 dump_replay_data(&replay_data_stream); 1245 tty->print_cr("# Compiler replay data is saved as: %s", buffer); 1246 } else { 1247 tty->print_cr("# Can't open file to dump replay data."); 1248 } 1249 } 1250 } 1251 } 1252 1253 void ciEnv::dump_inline_data(int compile_id) { 1254 static char buffer[O_BUFLEN]; 1255 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id); 1256 if (ret > 0) { 1257 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1258 if (fd != -1) { 1259 FILE* inline_data_file = os::open(fd, "w"); 1260 if (inline_data_file != NULL) { 1261 fileStream replay_data_stream(inline_data_file, /*need_close=*/true); 1262 GUARDED_VM_ENTRY( 1263 MutexLocker ml(Compile_lock); 1264 dump_compile_data(&replay_data_stream); 1265 ) 1266 replay_data_stream.flush(); 1267 tty->print("# Compiler inline data is saved as: "); 1268 tty->print_cr("%s", buffer); 1269 } else { 1270 tty->print_cr("# Can't open file to dump inline data."); 1271 } 1272 } 1273 } 1274 }