1 /* 2 * Copyright (c) 1999, 2013, 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/scopeDesc.hpp" 38 #include "compiler/compileBroker.hpp" 39 #include "compiler/compileLog.hpp" 40 #include "compiler/compilerOracle.hpp" 41 #include "gc_interface/collectedHeap.inline.hpp" 42 #include "interpreter/linkResolver.hpp" 43 #include "memory/allocation.inline.hpp" 44 #include "memory/oopFactory.hpp" 45 #include "memory/universe.inline.hpp" 46 #include "oops/methodData.hpp" 47 #include "oops/objArrayKlass.hpp" 48 #include "oops/oop.inline.hpp" 49 #include "oops/oop.inline2.hpp" 50 #include "prims/jvmtiExport.hpp" 51 #include "runtime/init.hpp" 52 #include "runtime/reflection.hpp" 53 #include "runtime/sharedRuntime.hpp" 54 #include "utilities/dtrace.hpp" 55 #include "utilities/macros.hpp" 56 #ifdef COMPILER1 57 #include "c1/c1_Runtime1.hpp" 58 #endif 59 #ifdef COMPILER2 60 #include "opto/runtime.hpp" 61 #endif 62 63 // ciEnv 64 // 65 // This class is the top level broker for requests from the compiler 66 // to the VM. 67 68 ciObject* ciEnv::_null_object_instance; 69 70 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL; 71 WK_KLASSES_DO(WK_KLASS_DEFN) 72 #undef WK_KLASS_DEFN 73 74 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; 75 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; 76 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; 77 78 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL; 79 jobject ciEnv::_ArrayStoreException_handle = NULL; 80 jobject ciEnv::_ClassCastException_handle = NULL; 81 82 #ifndef PRODUCT 83 static bool firstEnv = true; 84 #endif /* PRODUCT */ 85 86 // ------------------------------------------------------------------ 87 // ciEnv::ciEnv 88 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) { 89 VM_ENTRY_MARK; 90 91 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 92 thread->set_env(this); 93 assert(ciEnv::current() == this, "sanity"); 94 95 _oop_recorder = NULL; 96 _debug_info = NULL; 97 _dependencies = NULL; 98 _failure_reason = NULL; 99 _compilable = MethodCompilable; 100 _break_at_compile = false; 101 _compiler_data = NULL; 102 #ifndef PRODUCT 103 assert(!firstEnv, "not initialized properly"); 104 #endif /* !PRODUCT */ 105 106 _system_dictionary_modification_counter = system_dictionary_modification_counter; 107 _num_inlined_bytecodes = 0; 108 assert(task == NULL || thread->task() == task, "sanity"); 109 _task = task; 110 _log = NULL; 111 112 // Temporary buffer for creating symbols and such. 113 _name_buffer = NULL; 114 _name_buffer_len = 0; 115 116 _arena = &_ciEnv_arena; 117 _factory = new (_arena) ciObjectFactory(_arena, 128); 118 119 // Preload commonly referenced system ciObjects. 120 121 // During VM initialization, these instances have not yet been created. 122 // Assertions ensure that these instances are not accessed before 123 // their initialization. 124 125 assert(Universe::is_fully_initialized(), "should be complete"); 126 127 oop o = Universe::null_ptr_exception_instance(); 128 assert(o != NULL, "should have been initialized"); 129 _NullPointerException_instance = get_object(o)->as_instance(); 130 o = Universe::arithmetic_exception_instance(); 131 assert(o != NULL, "should have been initialized"); 132 _ArithmeticException_instance = get_object(o)->as_instance(); 133 134 _ArrayIndexOutOfBoundsException_instance = NULL; 135 _ArrayStoreException_instance = NULL; 136 _ClassCastException_instance = NULL; 137 _the_null_string = NULL; 138 _the_min_jint_string = NULL; 139 140 _jvmti_can_hotswap_or_post_breakpoint = false; 141 _jvmti_can_access_local_variables = false; 142 _jvmti_can_post_on_exceptions = false; 143 _jvmti_can_pop_frame = false; 144 } 145 146 ciEnv::ciEnv(Arena* arena) { 147 ASSERT_IN_VM; 148 149 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 150 CompilerThread* current_thread = CompilerThread::current(); 151 assert(current_thread->env() == NULL, "must be"); 152 current_thread->set_env(this); 153 assert(ciEnv::current() == this, "sanity"); 154 155 _oop_recorder = NULL; 156 _debug_info = NULL; 157 _dependencies = NULL; 158 _failure_reason = NULL; 159 _compilable = MethodCompilable_never; 160 _break_at_compile = false; 161 _compiler_data = NULL; 162 #ifndef PRODUCT 163 assert(firstEnv, "must be first"); 164 firstEnv = false; 165 #endif /* !PRODUCT */ 166 167 _system_dictionary_modification_counter = 0; 168 _num_inlined_bytecodes = 0; 169 _task = NULL; 170 _log = NULL; 171 172 // Temporary buffer for creating symbols and such. 173 _name_buffer = NULL; 174 _name_buffer_len = 0; 175 176 _arena = arena; 177 _factory = new (_arena) ciObjectFactory(_arena, 128); 178 179 // Preload commonly referenced system ciObjects. 180 181 // During VM initialization, these instances have not yet been created. 182 // Assertions ensure that these instances are not accessed before 183 // their initialization. 184 185 assert(Universe::is_fully_initialized(), "must be"); 186 187 _NullPointerException_instance = NULL; 188 _ArithmeticException_instance = NULL; 189 _ArrayIndexOutOfBoundsException_instance = NULL; 190 _ArrayStoreException_instance = NULL; 191 _ClassCastException_instance = NULL; 192 _the_null_string = NULL; 193 _the_min_jint_string = NULL; 194 195 _jvmti_can_hotswap_or_post_breakpoint = false; 196 _jvmti_can_access_local_variables = false; 197 _jvmti_can_post_on_exceptions = false; 198 _jvmti_can_pop_frame = false; 199 } 200 201 ciEnv::~ciEnv() { 202 CompilerThread* current_thread = CompilerThread::current(); 203 _factory->remove_symbols(); 204 // Need safepoint to clear the env on the thread. RedefineClasses might 205 // be reading it. 206 GUARDED_VM_ENTRY(current_thread->set_env(NULL);) 207 } 208 209 // ------------------------------------------------------------------ 210 // Cache Jvmti state 211 void ciEnv::cache_jvmti_state() { 212 VM_ENTRY_MARK; 213 // Get Jvmti capabilities under lock to get consistant values. 214 MutexLocker mu(JvmtiThreadState_lock); 215 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); 216 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); 217 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); 218 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame(); 219 } 220 221 bool ciEnv::should_retain_local_variables() const { 222 return _jvmti_can_access_local_variables || _jvmti_can_pop_frame; 223 } 224 225 bool ciEnv::jvmti_state_changed() const { 226 if (!_jvmti_can_access_local_variables && 227 JvmtiExport::can_access_local_variables()) { 228 return true; 229 } 230 if (!_jvmti_can_hotswap_or_post_breakpoint && 231 JvmtiExport::can_hotswap_or_post_breakpoint()) { 232 return true; 233 } 234 if (!_jvmti_can_post_on_exceptions && 235 JvmtiExport::can_post_on_exceptions()) { 236 return true; 237 } 238 if (!_jvmti_can_pop_frame && 239 JvmtiExport::can_pop_frame()) { 240 return true; 241 } 242 return false; 243 } 244 245 // ------------------------------------------------------------------ 246 // Cache DTrace flags 247 void ciEnv::cache_dtrace_flags() { 248 // Need lock? 249 _dtrace_extended_probes = ExtendedDTraceProbes; 250 if (_dtrace_extended_probes) { 251 _dtrace_monitor_probes = true; 252 _dtrace_method_probes = true; 253 _dtrace_alloc_probes = true; 254 } else { 255 _dtrace_monitor_probes = DTraceMonitorProbes; 256 _dtrace_method_probes = DTraceMethodProbes; 257 _dtrace_alloc_probes = DTraceAllocProbes; 258 } 259 } 260 261 // ------------------------------------------------------------------ 262 // helper for lazy exception creation 263 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { 264 VM_ENTRY_MARK; 265 if (handle == NULL) { 266 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. 267 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD); 268 jobject objh = NULL; 269 if (!HAS_PENDING_EXCEPTION && k != NULL) { 270 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD); 271 if (!HAS_PENDING_EXCEPTION) 272 objh = JNIHandles::make_global(obj); 273 } 274 if (HAS_PENDING_EXCEPTION) { 275 CLEAR_PENDING_EXCEPTION; 276 } else { 277 handle = objh; 278 } 279 } 280 oop obj = JNIHandles::resolve(handle); 281 return obj == NULL? NULL: get_object(obj)->as_instance(); 282 } 283 284 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { 285 if (_ArrayIndexOutOfBoundsException_instance == NULL) { 286 _ArrayIndexOutOfBoundsException_instance 287 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, 288 vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); 289 } 290 return _ArrayIndexOutOfBoundsException_instance; 291 } 292 ciInstance* ciEnv::ArrayStoreException_instance() { 293 if (_ArrayStoreException_instance == NULL) { 294 _ArrayStoreException_instance 295 = get_or_create_exception(_ArrayStoreException_handle, 296 vmSymbols::java_lang_ArrayStoreException()); 297 } 298 return _ArrayStoreException_instance; 299 } 300 ciInstance* ciEnv::ClassCastException_instance() { 301 if (_ClassCastException_instance == NULL) { 302 _ClassCastException_instance 303 = get_or_create_exception(_ClassCastException_handle, 304 vmSymbols::java_lang_ClassCastException()); 305 } 306 return _ClassCastException_instance; 307 } 308 309 ciInstance* ciEnv::the_null_string() { 310 if (_the_null_string == NULL) { 311 VM_ENTRY_MARK; 312 _the_null_string = get_object(Universe::the_null_string())->as_instance(); 313 } 314 return _the_null_string; 315 } 316 317 ciInstance* ciEnv::the_min_jint_string() { 318 if (_the_min_jint_string == NULL) { 319 VM_ENTRY_MARK; 320 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); 321 } 322 return _the_min_jint_string; 323 } 324 325 // ------------------------------------------------------------------ 326 // ciEnv::get_method_from_handle 327 ciMethod* ciEnv::get_method_from_handle(Method* method) { 328 VM_ENTRY_MARK; 329 return get_metadata(method)->as_method(); 330 } 331 332 // ------------------------------------------------------------------ 333 // ciEnv::array_element_offset_in_bytes 334 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { 335 VM_ENTRY_MARK; 336 objArrayOop a = (objArrayOop)a_h->get_oop(); 337 assert(a->is_objArray(), ""); 338 int length = a->length(); 339 oop o = o_h->get_oop(); 340 for (int i = 0; i < length; i++) { 341 if (a->obj_at(i) == o) return i; 342 } 343 return -1; 344 } 345 346 347 // ------------------------------------------------------------------ 348 // ciEnv::check_klass_accessiblity 349 // 350 // Note: the logic of this method should mirror the logic of 351 // ConstantPool::verify_constant_pool_resolve. 352 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, 353 Klass* resolved_klass) { 354 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { 355 return true; 356 } 357 if (accessing_klass->is_obj_array_klass()) { 358 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); 359 } 360 if (!accessing_klass->is_instance_klass()) { 361 return true; 362 } 363 364 if (resolved_klass->oop_is_objArray()) { 365 // Find the element klass, if this is an array. 366 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass(); 367 } 368 if (resolved_klass->oop_is_instance()) { 369 return Reflection::verify_class_access(accessing_klass->get_Klass(), 370 resolved_klass, 371 true); 372 } 373 return true; 374 } 375 376 // ------------------------------------------------------------------ 377 // ciEnv::get_klass_by_name_impl 378 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, 379 constantPoolHandle cpool, 380 ciSymbol* name, 381 bool require_local) { 382 ASSERT_IN_VM; 383 EXCEPTION_CONTEXT; 384 385 // Now we need to check the SystemDictionary 386 Symbol* sym = name->get_symbol(); 387 if (sym->byte_at(0) == 'L' && 388 sym->byte_at(sym->utf8_length()-1) == ';') { 389 // This is a name from a signature. Strip off the trimmings. 390 // Call recursive to keep scope of strippedsym. 391 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1, 392 sym->utf8_length()-2, 393 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); 394 ciSymbol* strippedname = get_symbol(strippedsym); 395 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); 396 } 397 398 // Check for prior unloaded klass. The SystemDictionary's answers 399 // can vary over time but the compiler needs consistency. 400 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); 401 if (unloaded_klass != NULL) { 402 if (require_local) return NULL; 403 return unloaded_klass; 404 } 405 406 Handle loader(THREAD, (oop)NULL); 407 Handle domain(THREAD, (oop)NULL); 408 if (accessing_klass != NULL) { 409 loader = Handle(THREAD, accessing_klass->loader()); 410 domain = Handle(THREAD, accessing_klass->protection_domain()); 411 } 412 413 // setup up the proper type to return on OOM 414 ciKlass* fail_type; 415 if (sym->byte_at(0) == '[') { 416 fail_type = _unloaded_ciobjarrayklass; 417 } else { 418 fail_type = _unloaded_ciinstance_klass; 419 } 420 KlassHandle found_klass; 421 { 422 ttyUnlocker ttyul; // release tty lock to avoid ordering problems 423 MutexLocker ml(Compile_lock); 424 Klass* kls; 425 if (!require_local) { 426 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, 427 KILL_COMPILE_ON_FATAL_(fail_type)); 428 } else { 429 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain, 430 KILL_COMPILE_ON_FATAL_(fail_type)); 431 } 432 found_klass = KlassHandle(THREAD, kls); 433 } 434 435 // If we fail to find an array klass, look again for its element type. 436 // The element type may be available either locally or via constraints. 437 // In either case, if we can find the element type in the system dictionary, 438 // we must build an array type around it. The CI requires array klasses 439 // to be loaded if their element klasses are loaded, except when memory 440 // is exhausted. 441 if (sym->byte_at(0) == '[' && 442 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) { 443 // We have an unloaded array. 444 // Build it on the fly if the element class exists. 445 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1, 446 sym->utf8_length()-1, 447 KILL_COMPILE_ON_FATAL_(fail_type)); 448 449 // Get element ciKlass recursively. 450 ciKlass* elem_klass = 451 get_klass_by_name_impl(accessing_klass, 452 cpool, 453 get_symbol(elem_sym), 454 require_local); 455 if (elem_klass != NULL && elem_klass->is_loaded()) { 456 // Now make an array for it 457 return ciObjArrayKlass::make_impl(elem_klass); 458 } 459 } 460 461 if (found_klass() == NULL && !cpool.is_null() && cpool->has_preresolution()) { 462 // Look inside the constant pool for pre-resolved class entries. 463 for (int i = cpool->length() - 1; i >= 1; i--) { 464 if (cpool->tag_at(i).is_klass()) { 465 Klass* kls = cpool->resolved_klass_at(i); 466 if (kls->name() == sym) { 467 found_klass = KlassHandle(THREAD, kls); 468 break; 469 } 470 } 471 } 472 } 473 474 if (found_klass() != NULL) { 475 // Found it. Build a CI handle. 476 return get_klass(found_klass()); 477 } 478 479 if (require_local) return NULL; 480 481 // Not yet loaded into the VM, or not governed by loader constraints. 482 // Make a CI representative for it. 483 return get_unloaded_klass(accessing_klass, name); 484 } 485 486 // ------------------------------------------------------------------ 487 // ciEnv::get_klass_by_name 488 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, 489 ciSymbol* klass_name, 490 bool require_local) { 491 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, 492 constantPoolHandle(), 493 klass_name, 494 require_local);) 495 } 496 497 // ------------------------------------------------------------------ 498 // ciEnv::get_klass_by_index_impl 499 // 500 // Implementation of get_klass_by_index. 501 ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool, 502 int index, 503 bool& is_accessible, 504 ciInstanceKlass* accessor) { 505 EXCEPTION_CONTEXT; 506 KlassHandle klass; // = NULL; 507 Symbol* klass_name = NULL; 508 509 if (cpool->tag_at(index).is_symbol()) { 510 klass_name = cpool->symbol_at(index); 511 } else { 512 // Check if it's resolved if it's not a symbol constant pool entry. 513 klass = KlassHandle(THREAD, ConstantPool::klass_at_if_loaded(cpool, index)); 514 515 if (klass.is_null()) { 516 // The klass has not been inserted into the constant pool. 517 // Try to look it up by name. 518 { 519 // We have to lock the cpool to keep the oop from being resolved 520 // while we are accessing it. 521 MonitorLockerEx ml(cpool->lock()); 522 constantTag tag = cpool->tag_at(index); 523 if (tag.is_klass()) { 524 // The klass has been inserted into the constant pool 525 // very recently. 526 klass = KlassHandle(THREAD, cpool->resolved_klass_at(index)); 527 } else { 528 assert(cpool->tag_at(index).is_unresolved_klass(), "wrong tag"); 529 klass_name = cpool->unresolved_klass_at(index); 530 } 531 } 532 } 533 } 534 535 if (klass.is_null()) { 536 // Not found in constant pool. Use the name to do the lookup. 537 ciKlass* k = get_klass_by_name_impl(accessor, 538 cpool, 539 get_symbol(klass_name), 540 false); 541 // Calculate accessibility the hard way. 542 if (!k->is_loaded()) { 543 is_accessible = false; 544 } else if (k->loader() != accessor->loader() && 545 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) { 546 // Loaded only remotely. Not linked yet. 547 is_accessible = false; 548 } else { 549 // Linked locally, and we must also check public/private, etc. 550 is_accessible = check_klass_accessibility(accessor, k->get_Klass()); 551 } 552 return k; 553 } 554 555 // Check for prior unloaded klass. The SystemDictionary's answers 556 // can vary over time but the compiler needs consistency. 557 ciSymbol* name = get_symbol(klass()->name()); 558 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); 559 if (unloaded_klass != NULL) { 560 is_accessible = false; 561 return unloaded_klass; 562 } 563 564 // It is known to be accessible, since it was found in the constant pool. 565 is_accessible = true; 566 return get_klass(klass()); 567 } 568 569 // ------------------------------------------------------------------ 570 // ciEnv::get_klass_by_index 571 // 572 // Get a klass from the constant pool. 573 ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool, 574 int index, 575 bool& is_accessible, 576 ciInstanceKlass* accessor) { 577 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) 578 } 579 580 // ------------------------------------------------------------------ 581 // ciEnv::get_constant_by_index_impl 582 // 583 // Implementation of get_constant_by_index(). 584 ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool, 585 int pool_index, int cache_index, 586 ciInstanceKlass* accessor) { 587 bool ignore_will_link; 588 EXCEPTION_CONTEXT; 589 int index = pool_index; 590 if (cache_index >= 0) { 591 assert(index < 0, "only one kind of index at a time"); 592 oop obj = cpool->resolved_references()->obj_at(cache_index); 593 if (obj != NULL) { 594 ciObject* ciobj = get_object(obj); 595 return ciConstant(T_OBJECT, ciobj); 596 } 597 index = cpool->object_to_cp_index(cache_index); 598 } 599 constantTag tag = cpool->tag_at(index); 600 if (tag.is_int()) { 601 return ciConstant(T_INT, (jint)cpool->int_at(index)); 602 } else if (tag.is_long()) { 603 return ciConstant((jlong)cpool->long_at(index)); 604 } else if (tag.is_float()) { 605 return ciConstant((jfloat)cpool->float_at(index)); 606 } else if (tag.is_double()) { 607 return ciConstant((jdouble)cpool->double_at(index)); 608 } else if (tag.is_string()) { 609 oop string = NULL; 610 assert(cache_index >= 0, "should have a cache index"); 611 if (cpool->is_pseudo_string_at(index)) { 612 string = cpool->pseudo_string_at(index, cache_index); 613 } else { 614 string = cpool->string_at(index, cache_index, THREAD); 615 if (HAS_PENDING_EXCEPTION) { 616 CLEAR_PENDING_EXCEPTION; 617 record_out_of_memory_failure(); 618 return ciConstant(); 619 } 620 } 621 ciObject* constant = get_object(string); 622 assert (constant->is_instance(), "must be an instance, or not? "); 623 return ciConstant(T_OBJECT, constant); 624 } else if (tag.is_klass() || tag.is_unresolved_klass()) { 625 // 4881222: allow ldc to take a class type 626 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); 627 if (HAS_PENDING_EXCEPTION) { 628 CLEAR_PENDING_EXCEPTION; 629 record_out_of_memory_failure(); 630 return ciConstant(); 631 } 632 assert (klass->is_instance_klass() || klass->is_array_klass(), 633 "must be an instance or array klass "); 634 return ciConstant(T_OBJECT, klass->java_mirror()); 635 } else if (tag.is_method_type()) { 636 // must execute Java code to link this CP entry into cache[i].f1 637 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); 638 ciObject* ciobj = get_unloaded_method_type_constant(signature); 639 return ciConstant(T_OBJECT, ciobj); 640 } else if (tag.is_method_handle()) { 641 // must execute Java code to link this CP entry into cache[i].f1 642 int ref_kind = cpool->method_handle_ref_kind_at(index); 643 int callee_index = cpool->method_handle_klass_index_at(index); 644 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); 645 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); 646 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); 647 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); 648 return ciConstant(T_OBJECT, ciobj); 649 } else { 650 ShouldNotReachHere(); 651 return ciConstant(); 652 } 653 } 654 655 // ------------------------------------------------------------------ 656 // ciEnv::get_constant_by_index 657 // 658 // Pull a constant out of the constant pool. How appropriate. 659 // 660 // Implementation note: this query is currently in no way cached. 661 ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool, 662 int pool_index, int cache_index, 663 ciInstanceKlass* accessor) { 664 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) 665 } 666 667 // ------------------------------------------------------------------ 668 // ciEnv::get_field_by_index_impl 669 // 670 // Implementation of get_field_by_index. 671 // 672 // Implementation note: the results of field lookups are cached 673 // in the accessor klass. 674 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, 675 int index) { 676 ciConstantPoolCache* cache = accessor->field_cache(); 677 if (cache == NULL) { 678 ciField* field = new (arena()) ciField(accessor, index); 679 return field; 680 } else { 681 ciField* field = (ciField*)cache->get(index); 682 if (field == NULL) { 683 field = new (arena()) ciField(accessor, index); 684 cache->insert(index, field); 685 } 686 return field; 687 } 688 } 689 690 // ------------------------------------------------------------------ 691 // ciEnv::get_field_by_index 692 // 693 // Get a field by index from a klass's constant pool. 694 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, 695 int index) { 696 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) 697 } 698 699 // ------------------------------------------------------------------ 700 // ciEnv::lookup_method 701 // 702 // Perform an appropriate method lookup based on accessor, holder, 703 // name, signature, and bytecode. 704 Method* ciEnv::lookup_method(InstanceKlass* accessor, 705 InstanceKlass* holder, 706 Symbol* name, 707 Symbol* sig, 708 Bytecodes::Code bc) { 709 EXCEPTION_CONTEXT; 710 KlassHandle h_accessor(THREAD, accessor); 711 KlassHandle h_holder(THREAD, holder); 712 LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL)); 713 methodHandle dest_method; 714 switch (bc) { 715 case Bytecodes::_invokestatic: 716 dest_method = 717 LinkResolver::resolve_static_call_or_null(h_holder, name, sig, h_accessor); 718 break; 719 case Bytecodes::_invokespecial: 720 dest_method = 721 LinkResolver::resolve_special_call_or_null(h_holder, name, sig, h_accessor); 722 break; 723 case Bytecodes::_invokeinterface: 724 dest_method = 725 LinkResolver::linktime_resolve_interface_method_or_null(h_holder, name, sig, 726 h_accessor, true); 727 break; 728 case Bytecodes::_invokevirtual: 729 dest_method = 730 LinkResolver::linktime_resolve_virtual_method_or_null(h_holder, name, sig, 731 h_accessor, true); 732 break; 733 default: ShouldNotReachHere(); 734 } 735 736 return dest_method(); 737 } 738 739 740 // ------------------------------------------------------------------ 741 // ciEnv::get_method_by_index_impl 742 ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool, 743 int index, Bytecodes::Code bc, 744 ciInstanceKlass* accessor) { 745 if (bc == Bytecodes::_invokedynamic) { 746 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index); 747 bool is_resolved = !cpce->is_f1_null(); 748 // FIXME: code generation could allow for null (unlinked) call site 749 // The call site could be made patchable as follows: 750 // Load the appendix argument from the constant pool. 751 // Test the appendix argument and jump to a known deopt routine if it is null. 752 // Jump through a patchable call site, which is initially a deopt routine. 753 // Patch the call site to the nmethod entry point of the static compiled lambda form. 754 // As with other two-component call sites, both values must be independently verified. 755 756 if (is_resolved) { 757 // Get the invoker Method* from the constant pool. 758 // (The appendix argument, if any, will be noted in the method's signature.) 759 Method* adapter = cpce->f1_as_method(); 760 return get_method(adapter); 761 } 762 763 // Fake a method that is equivalent to a declared method. 764 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass()); 765 ciSymbol* name = ciSymbol::invokeBasic_name(); 766 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index)); 767 return get_unloaded_method(holder, name, signature, accessor); 768 } else { 769 const int holder_index = cpool->klass_ref_index_at(index); 770 bool holder_is_accessible; 771 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); 772 ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder); 773 774 // Get the method's name and signature. 775 Symbol* name_sym = cpool->name_ref_at(index); 776 Symbol* sig_sym = cpool->signature_ref_at(index); 777 778 if (cpool->has_preresolution() 779 || (holder == ciEnv::MethodHandle_klass() && 780 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) { 781 // Short-circuit lookups for JSR 292-related call sites. 782 // That is, do not rely only on name-based lookups, because they may fail 783 // if the names are not resolvable in the boot class loader (7056328). 784 switch (bc) { 785 case Bytecodes::_invokevirtual: 786 case Bytecodes::_invokeinterface: 787 case Bytecodes::_invokespecial: 788 case Bytecodes::_invokestatic: 789 { 790 Method* m = ConstantPool::method_at_if_loaded(cpool, index); 791 if (m != NULL) { 792 return get_method(m); 793 } 794 } 795 break; 796 } 797 } 798 799 if (holder_is_accessible) { // Our declared holder is loaded. 800 InstanceKlass* lookup = declared_holder->get_instanceKlass(); 801 Method* m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc); 802 if (m != NULL && 803 (bc == Bytecodes::_invokestatic 804 ? m->method_holder()->is_not_initialized() 805 : !m->method_holder()->is_loaded())) { 806 m = NULL; 807 } 808 #ifdef ASSERT 809 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) { 810 m = NULL; 811 } 812 #endif 813 if (m != NULL) { 814 // We found the method. 815 return get_method(m); 816 } 817 } 818 819 // Either the declared holder was not loaded, or the method could 820 // not be found. Create a dummy ciMethod to represent the failed 821 // lookup. 822 ciSymbol* name = get_symbol(name_sym); 823 ciSymbol* signature = get_symbol(sig_sym); 824 return get_unloaded_method(declared_holder, name, signature, accessor); 825 } 826 } 827 828 829 // ------------------------------------------------------------------ 830 // ciEnv::get_instance_klass_for_declared_method_holder 831 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { 832 // For the case of <array>.clone(), the method holder can be a ciArrayKlass 833 // instead of a ciInstanceKlass. For that case simply pretend that the 834 // declared holder is Object.clone since that's where the call will bottom out. 835 // A more correct fix would trickle out through many interfaces in CI, 836 // requiring ciInstanceKlass* to become ciKlass* and many more places would 837 // require checks to make sure the expected type was found. Given that this 838 // only occurs for clone() the more extensive fix seems like overkill so 839 // instead we simply smear the array type into Object. 840 guarantee(method_holder != NULL, "no method holder"); 841 if (method_holder->is_instance_klass()) { 842 return method_holder->as_instance_klass(); 843 } else if (method_holder->is_array_klass()) { 844 return current()->Object_klass(); 845 } else { 846 ShouldNotReachHere(); 847 } 848 return NULL; 849 } 850 851 852 // ------------------------------------------------------------------ 853 // ciEnv::get_method_by_index 854 ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool, 855 int index, Bytecodes::Code bc, 856 ciInstanceKlass* accessor) { 857 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);) 858 } 859 860 861 // ------------------------------------------------------------------ 862 // ciEnv::name_buffer 863 char *ciEnv::name_buffer(int req_len) { 864 if (_name_buffer_len < req_len) { 865 if (_name_buffer == NULL) { 866 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); 867 _name_buffer_len = req_len; 868 } else { 869 _name_buffer = 870 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); 871 _name_buffer_len = req_len; 872 } 873 } 874 return _name_buffer; 875 } 876 877 // ------------------------------------------------------------------ 878 // ciEnv::is_in_vm 879 bool ciEnv::is_in_vm() { 880 return JavaThread::current()->thread_state() == _thread_in_vm; 881 } 882 883 bool ciEnv::system_dictionary_modification_counter_changed() { 884 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); 885 } 886 887 // ------------------------------------------------------------------ 888 // ciEnv::validate_compile_task_dependencies 889 // 890 // Check for changes during compilation (e.g. class loads, evolution, 891 // breakpoints, call site invalidation). 892 void ciEnv::validate_compile_task_dependencies(ciMethod* target) { 893 if (failing()) return; // no need for further checks 894 895 // First, check non-klass dependencies as we might return early and 896 // not check klass dependencies if the system dictionary 897 // modification counter hasn't changed (see below). 898 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { 899 if (deps.is_klass_type()) continue; // skip klass dependencies 900 Klass* witness = deps.check_dependency(); 901 if (witness != NULL) { 902 record_failure("invalid non-klass dependency"); 903 return; 904 } 905 } 906 907 // Klass dependencies must be checked when the system dictionary 908 // changes. If logging is enabled all violated dependences will be 909 // recorded in the log. In debug mode check dependencies even if 910 // the system dictionary hasn't changed to verify that no invalid 911 // dependencies were inserted. Any violated dependences in this 912 // case are dumped to the tty. 913 bool counter_changed = system_dictionary_modification_counter_changed(); 914 915 bool verify_deps = trueInDebug; 916 if (!counter_changed && !verify_deps) return; 917 918 int klass_violations = 0; 919 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { 920 if (!deps.is_klass_type()) continue; // skip non-klass dependencies 921 Klass* witness = deps.check_dependency(); 922 if (witness != NULL) { 923 klass_violations++; 924 if (!counter_changed) { 925 // Dependence failed but counter didn't change. Log a message 926 // describing what failed and allow the assert at the end to 927 // trigger. 928 deps.print_dependency(witness); 929 } else if (xtty == NULL) { 930 // If we're not logging then a single violation is sufficient, 931 // otherwise we want to log all the dependences which were 932 // violated. 933 break; 934 } 935 } 936 } 937 938 if (klass_violations != 0) { 939 #ifdef ASSERT 940 if (!counter_changed && !PrintCompilation) { 941 // Print out the compile task that failed 942 _task->print_line(); 943 } 944 #endif 945 assert(counter_changed, "failed dependencies, but counter didn't change"); 946 record_failure("concurrent class loading"); 947 } 948 } 949 950 // ------------------------------------------------------------------ 951 // ciEnv::register_method 952 void ciEnv::register_method(ciMethod* target, 953 int entry_bci, 954 CodeOffsets* offsets, 955 int orig_pc_offset, 956 CodeBuffer* code_buffer, 957 int frame_words, 958 OopMapSet* oop_map_set, 959 ExceptionHandlerTable* handler_table, 960 ImplicitExceptionTable* inc_table, 961 AbstractCompiler* compiler, 962 int comp_level, 963 bool has_unsafe_access, 964 bool has_wide_vectors, 965 RTMState rtm_state) { 966 VM_ENTRY_MARK; 967 nmethod* nm = NULL; 968 { 969 // To prevent compile queue updates. 970 MutexLocker locker(MethodCompileQueue_lock, THREAD); 971 972 // Prevent SystemDictionary::add_to_hierarchy from running 973 // and invalidating our dependencies until we install this method. 974 // No safepoints are allowed. Otherwise, class redefinition can occur in between. 975 MutexLocker ml(Compile_lock); 976 No_Safepoint_Verifier nsv; 977 978 // Change in Jvmti state may invalidate compilation. 979 if (!failing() && jvmti_state_changed()) { 980 record_failure("Jvmti state change invalidated dependencies"); 981 } 982 983 // Change in DTrace flags may invalidate compilation. 984 if (!failing() && 985 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || 986 (!dtrace_method_probes() && DTraceMethodProbes) || 987 (!dtrace_alloc_probes() && DTraceAllocProbes) )) { 988 record_failure("DTrace flags change invalidated dependencies"); 989 } 990 991 if (!failing()) { 992 if (log() != NULL) { 993 // Log the dependencies which this compilation declares. 994 dependencies()->log_all_dependencies(); 995 } 996 997 // Encode the dependencies now, so we can check them right away. 998 dependencies()->encode_content_bytes(); 999 1000 // Check for {class loads, evolution, breakpoints, ...} during compilation 1001 validate_compile_task_dependencies(target); 1002 } 1003 1004 methodHandle method(THREAD, target->get_Method()); 1005 1006 #if INCLUDE_RTM_OPT 1007 if (!failing() && (rtm_state != NoRTM) && 1008 (method()->method_data() != NULL) && 1009 (method()->method_data()->rtm_state() != rtm_state)) { 1010 // Preemptive decompile if rtm state was changed. 1011 record_failure("RTM state change invalidated rtm code"); 1012 } 1013 #endif 1014 1015 if (failing()) { 1016 // While not a true deoptimization, it is a preemptive decompile. 1017 MethodData* mdo = method()->method_data(); 1018 if (mdo != NULL) { 1019 mdo->inc_decompile_count(); 1020 } 1021 1022 // All buffers in the CodeBuffer are allocated in the CodeCache. 1023 // If the code buffer is created on each compile attempt 1024 // as in C2, then it must be freed. 1025 code_buffer->free_blob(); 1026 return; 1027 } 1028 1029 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); 1030 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); 1031 1032 nm = nmethod::new_nmethod(method, 1033 compile_id(), 1034 entry_bci, 1035 offsets, 1036 orig_pc_offset, 1037 debug_info(), dependencies(), code_buffer, 1038 frame_words, oop_map_set, 1039 handler_table, inc_table, 1040 compiler, comp_level); 1041 // Free codeBlobs 1042 code_buffer->free_blob(); 1043 1044 if (nm != NULL) { 1045 nm->set_has_unsafe_access(has_unsafe_access); 1046 nm->set_has_wide_vectors(has_wide_vectors); 1047 #if INCLUDE_RTM_OPT 1048 nm->set_rtm_state(rtm_state); 1049 #endif 1050 1051 // Record successful registration. 1052 // (Put nm into the task handle *before* publishing to the Java heap.) 1053 if (task() != NULL) { 1054 task()->set_code(nm); 1055 } 1056 1057 if (entry_bci == InvocationEntryBci) { 1058 if (TieredCompilation) { 1059 // If there is an old version we're done with it 1060 nmethod* old = method->code(); 1061 if (TraceMethodReplacement && old != NULL) { 1062 ResourceMark rm; 1063 char *method_name = method->name_and_sig_as_C_string(); 1064 tty->print_cr("Replacing method %s", method_name); 1065 } 1066 if (old != NULL) { 1067 old->make_not_entrant(); 1068 } 1069 } 1070 if (TraceNMethodInstalls) { 1071 ResourceMark rm; 1072 char *method_name = method->name_and_sig_as_C_string(); 1073 ttyLocker ttyl; 1074 tty->print_cr("Installing method (%d) %s ", 1075 comp_level, 1076 method_name); 1077 } 1078 // Allow the code to be executed 1079 method->set_code(method, nm); 1080 } else { 1081 if (TraceNMethodInstalls) { 1082 ResourceMark rm; 1083 char *method_name = method->name_and_sig_as_C_string(); 1084 ttyLocker ttyl; 1085 tty->print_cr("Installing osr method (%d) %s @ %d", 1086 comp_level, 1087 method_name, 1088 entry_bci); 1089 } 1090 method->method_holder()->add_osr_nmethod(nm); 1091 } 1092 } 1093 } // safepoints are allowed again 1094 1095 if (nm != NULL) { 1096 // JVMTI -- compiled method notification (must be done outside lock) 1097 nm->post_compiled_method_load_event(); 1098 } else { 1099 // The CodeCache is full. Print out warning and disable compilation. 1100 record_failure("code cache is full"); 1101 CompileBroker::handle_full_code_cache(); 1102 } 1103 } 1104 1105 1106 // ------------------------------------------------------------------ 1107 // ciEnv::find_system_klass 1108 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { 1109 VM_ENTRY_MARK; 1110 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false); 1111 } 1112 1113 // ------------------------------------------------------------------ 1114 // ciEnv::comp_level 1115 int ciEnv::comp_level() { 1116 if (task() == NULL) return CompLevel_highest_tier; 1117 return task()->comp_level(); 1118 } 1119 1120 // ------------------------------------------------------------------ 1121 // ciEnv::compile_id 1122 uint ciEnv::compile_id() { 1123 if (task() == NULL) return 0; 1124 return task()->compile_id(); 1125 } 1126 1127 // ------------------------------------------------------------------ 1128 // ciEnv::notice_inlined_method() 1129 void ciEnv::notice_inlined_method(ciMethod* method) { 1130 _num_inlined_bytecodes += method->code_size_for_inlining(); 1131 } 1132 1133 // ------------------------------------------------------------------ 1134 // ciEnv::num_inlined_bytecodes() 1135 int ciEnv::num_inlined_bytecodes() const { 1136 return _num_inlined_bytecodes; 1137 } 1138 1139 // ------------------------------------------------------------------ 1140 // ciEnv::record_failure() 1141 void ciEnv::record_failure(const char* reason) { 1142 if (log() != NULL) { 1143 log()->elem("failure reason='%s'", reason); 1144 } 1145 if (_failure_reason == NULL) { 1146 // Record the first failure reason. 1147 _failure_reason = reason; 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 Method* method = task->method(); 1195 int entry_bci = task->osr_bci(); 1196 int comp_level = task->comp_level(); 1197 out->print("compile %s %s %s %d %d", 1198 method->klass_name()->as_quoted_ascii(), 1199 method->name()->as_quoted_ascii(), 1200 method->signature()->as_quoted_ascii(), 1201 entry_bci, comp_level); 1202 if (compiler_data() != NULL) { 1203 if (is_c2_compile(comp_level)) { // C2 or Shark 1204 #ifdef COMPILER2 1205 // Dump C2 inlining data. 1206 ((Compile*)compiler_data())->dump_inline_data(out); 1207 #endif 1208 } else if (is_c1_compile(comp_level)) { // C1 1209 #ifdef COMPILER1 1210 // Dump C1 inlining data. 1211 ((Compilation*)compiler_data())->dump_inline_data(out); 1212 #endif 1213 } 1214 } 1215 out->cr(); 1216 } 1217 1218 void ciEnv::dump_replay_data_unsafe(outputStream* out) { 1219 ResourceMark rm; 1220 #if INCLUDE_JVMTI 1221 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables); 1222 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint); 1223 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions); 1224 #endif // INCLUDE_JVMTI 1225 1226 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata(); 1227 out->print_cr("# %d ciObject found", objects->length()); 1228 for (int i = 0; i < objects->length(); i++) { 1229 objects->at(i)->dump_replay_data(out); 1230 } 1231 dump_compile_data(out); 1232 out->flush(); 1233 } 1234 1235 void ciEnv::dump_replay_data(outputStream* out) { 1236 GUARDED_VM_ENTRY( 1237 MutexLocker ml(Compile_lock); 1238 dump_replay_data_unsafe(out); 1239 ) 1240 } 1241 1242 void ciEnv::dump_replay_data(int compile_id) { 1243 static char buffer[O_BUFLEN]; 1244 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id); 1245 if (ret > 0) { 1246 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1247 if (fd != -1) { 1248 FILE* replay_data_file = os::open(fd, "w"); 1249 if (replay_data_file != NULL) { 1250 fileStream replay_data_stream(replay_data_file, /*need_close=*/true); 1251 dump_replay_data(&replay_data_stream); 1252 tty->print("# Compiler replay data is saved as: "); 1253 tty->print_cr(buffer); 1254 } else { 1255 tty->print_cr("# Can't open file to dump replay data."); 1256 } 1257 } 1258 } 1259 } 1260 1261 void ciEnv::dump_inline_data(int compile_id) { 1262 static char buffer[O_BUFLEN]; 1263 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id); 1264 if (ret > 0) { 1265 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1266 if (fd != -1) { 1267 FILE* inline_data_file = os::open(fd, "w"); 1268 if (inline_data_file != NULL) { 1269 fileStream replay_data_stream(inline_data_file, /*need_close=*/true); 1270 GUARDED_VM_ENTRY( 1271 MutexLocker ml(Compile_lock); 1272 dump_compile_data(&replay_data_stream); 1273 ) 1274 replay_data_stream.flush(); 1275 tty->print("# Compiler inline data is saved as: "); 1276 tty->print_cr(buffer); 1277 } else { 1278 tty->print_cr("# Can't open file to dump inline data."); 1279 } 1280 } 1281 } 1282 }