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 "memory/allocation.inline.hpp" 46 #include "memory/oopFactory.hpp" 47 #include "memory/resourceArea.hpp" 48 #include "memory/universe.hpp" 49 #include "oops/constantPool.inline.hpp" 50 #include "oops/cpCache.inline.hpp" 51 #include "oops/method.inline.hpp" 52 #include "oops/methodData.hpp" 53 #include "oops/objArrayKlass.hpp" 54 #include "oops/objArrayOop.inline.hpp" 55 #include "oops/oop.inline.hpp" 56 #include "prims/jvmtiExport.hpp" 57 #include "runtime/init.hpp" 58 #include "runtime/reflection.hpp" 59 #include "runtime/jniHandles.inline.hpp" 60 #include "runtime/safepointVerifiers.hpp" 61 #include "runtime/sharedRuntime.hpp" 62 #include "runtime/thread.inline.hpp" 63 #include "trace/tracing.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, ignore_o) 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::should_retain_local_variables() const { 237 return _jvmti_can_access_local_variables || _jvmti_can_pop_frame; 238 } 239 240 bool ciEnv::jvmti_state_changed() const { 241 if (!_jvmti_can_access_local_variables && 242 JvmtiExport::can_access_local_variables()) { 243 return true; 244 } 245 if (!_jvmti_can_hotswap_or_post_breakpoint && 246 JvmtiExport::can_hotswap_or_post_breakpoint()) { 247 return true; 248 } 249 if (!_jvmti_can_post_on_exceptions && 250 JvmtiExport::can_post_on_exceptions()) { 251 return true; 252 } 253 if (!_jvmti_can_pop_frame && 254 JvmtiExport::can_pop_frame()) { 255 return true; 256 } 257 return false; 258 } 259 260 // ------------------------------------------------------------------ 261 // Cache DTrace flags 262 void ciEnv::cache_dtrace_flags() { 263 // Need lock? 264 _dtrace_extended_probes = ExtendedDTraceProbes; 265 if (_dtrace_extended_probes) { 266 _dtrace_monitor_probes = true; 267 _dtrace_method_probes = true; 268 _dtrace_alloc_probes = true; 269 } else { 270 _dtrace_monitor_probes = DTraceMonitorProbes; 271 _dtrace_method_probes = DTraceMethodProbes; 272 _dtrace_alloc_probes = DTraceAllocProbes; 273 } 274 } 275 276 // ------------------------------------------------------------------ 277 // helper for lazy exception creation 278 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { 279 VM_ENTRY_MARK; 280 if (handle == NULL) { 281 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. 282 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD); 283 jobject objh = NULL; 284 if (!HAS_PENDING_EXCEPTION && k != NULL) { 285 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD); 286 if (!HAS_PENDING_EXCEPTION) 287 objh = JNIHandles::make_global(Handle(THREAD, obj)); 288 } 289 if (HAS_PENDING_EXCEPTION) { 290 CLEAR_PENDING_EXCEPTION; 291 } else { 292 handle = objh; 293 } 294 } 295 oop obj = JNIHandles::resolve(handle); 296 return obj == NULL? NULL: get_object(obj)->as_instance(); 297 } 298 299 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { 300 if (_ArrayIndexOutOfBoundsException_instance == NULL) { 301 _ArrayIndexOutOfBoundsException_instance 302 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, 303 vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); 304 } 305 return _ArrayIndexOutOfBoundsException_instance; 306 } 307 ciInstance* ciEnv::ArrayStoreException_instance() { 308 if (_ArrayStoreException_instance == NULL) { 309 _ArrayStoreException_instance 310 = get_or_create_exception(_ArrayStoreException_handle, 311 vmSymbols::java_lang_ArrayStoreException()); 312 } 313 return _ArrayStoreException_instance; 314 } 315 ciInstance* ciEnv::ClassCastException_instance() { 316 if (_ClassCastException_instance == NULL) { 317 _ClassCastException_instance 318 = get_or_create_exception(_ClassCastException_handle, 319 vmSymbols::java_lang_ClassCastException()); 320 } 321 return _ClassCastException_instance; 322 } 323 324 ciInstance* ciEnv::the_null_string() { 325 if (_the_null_string == NULL) { 326 VM_ENTRY_MARK; 327 _the_null_string = get_object(Universe::the_null_string())->as_instance(); 328 } 329 return _the_null_string; 330 } 331 332 ciInstance* ciEnv::the_min_jint_string() { 333 if (_the_min_jint_string == NULL) { 334 VM_ENTRY_MARK; 335 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); 336 } 337 return _the_min_jint_string; 338 } 339 340 // ------------------------------------------------------------------ 341 // ciEnv::get_method_from_handle 342 ciMethod* ciEnv::get_method_from_handle(Method* method) { 343 VM_ENTRY_MARK; 344 return get_metadata(method)->as_method(); 345 } 346 347 // ------------------------------------------------------------------ 348 // ciEnv::array_element_offset_in_bytes 349 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { 350 VM_ENTRY_MARK; 351 objArrayOop a = (objArrayOop)a_h->get_oop(); 352 assert(a->is_objArray(), ""); 353 int length = a->length(); 354 oop o = o_h->get_oop(); 355 for (int i = 0; i < length; i++) { 356 if (a->obj_at(i) == o) return i; 357 } 358 return -1; 359 } 360 361 362 // ------------------------------------------------------------------ 363 // ciEnv::check_klass_accessiblity 364 // 365 // Note: the logic of this method should mirror the logic of 366 // ConstantPool::verify_constant_pool_resolve. 367 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, 368 Klass* resolved_klass) { 369 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { 370 return true; 371 } 372 if (accessing_klass->is_obj_array_klass()) { 373 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); 374 } 375 if (!accessing_klass->is_instance_klass()) { 376 return true; 377 } 378 379 if (resolved_klass->is_objArray_klass()) { 380 // Find the element klass, if this is an array. 381 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass(); 382 } 383 if (resolved_klass->is_instance_klass()) { 384 return (Reflection::verify_class_access(accessing_klass->get_Klass(), 385 InstanceKlass::cast(resolved_klass), 386 true) == Reflection::ACCESS_OK); 387 } 388 return true; 389 } 390 391 // ------------------------------------------------------------------ 392 // ciEnv::get_klass_by_name_impl 393 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, 394 const constantPoolHandle& cpool, 395 ciSymbol* name, 396 bool require_local) { 397 ASSERT_IN_VM; 398 EXCEPTION_CONTEXT; 399 400 // Now we need to check the SystemDictionary 401 Symbol* sym = name->get_symbol(); 402 if (sym->byte_at(0) == 'L' && 403 sym->byte_at(sym->utf8_length()-1) == ';') { 404 // This is a name from a signature. Strip off the trimmings. 405 // Call recursive to keep scope of strippedsym. 406 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1, 407 sym->utf8_length()-2, 408 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); 409 ciSymbol* strippedname = get_symbol(strippedsym); 410 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); 411 } 412 413 // Check for prior unloaded klass. The SystemDictionary's answers 414 // can vary over time but the compiler needs consistency. 415 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); 416 if (unloaded_klass != NULL) { 417 if (require_local) return NULL; 418 return unloaded_klass; 419 } 420 421 Handle loader(THREAD, (oop)NULL); 422 Handle domain(THREAD, (oop)NULL); 423 if (accessing_klass != NULL) { 424 loader = Handle(THREAD, accessing_klass->loader()); 425 domain = Handle(THREAD, accessing_klass->protection_domain()); 426 } 427 428 // setup up the proper type to return on OOM 429 ciKlass* fail_type; 430 if (sym->byte_at(0) == '[') { 431 fail_type = _unloaded_ciobjarrayklass; 432 } else { 433 fail_type = _unloaded_ciinstance_klass; 434 } 435 Klass* found_klass; 436 { 437 ttyUnlocker ttyul; // release tty lock to avoid ordering problems 438 MutexLocker ml(Compile_lock); 439 Klass* kls; 440 if (!require_local) { 441 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, 442 KILL_COMPILE_ON_FATAL_(fail_type)); 443 } else { 444 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain, 445 KILL_COMPILE_ON_FATAL_(fail_type)); 446 } 447 found_klass = kls; 448 } 449 450 // If we fail to find an array klass, look again for its element type. 451 // The element type may be available either locally or via constraints. 452 // In either case, if we can find the element type in the system dictionary, 453 // we must build an array type around it. The CI requires array klasses 454 // to be loaded if their element klasses are loaded, except when memory 455 // is exhausted. 456 if (sym->byte_at(0) == '[' && 457 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) { 458 // We have an unloaded array. 459 // Build it on the fly if the element class exists. 460 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1, 461 sym->utf8_length()-1, 462 KILL_COMPILE_ON_FATAL_(fail_type)); 463 464 // Get element ciKlass recursively. 465 ciKlass* elem_klass = 466 get_klass_by_name_impl(accessing_klass, 467 cpool, 468 get_symbol(elem_sym), 469 require_local); 470 if (elem_klass != NULL && elem_klass->is_loaded()) { 471 // Now make an array for it 472 return ciObjArrayKlass::make_impl(elem_klass); 473 } 474 } 475 476 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) { 477 // Look inside the constant pool for pre-resolved class entries. 478 for (int i = cpool->length() - 1; i >= 1; i--) { 479 if (cpool->tag_at(i).is_klass()) { 480 Klass* kls = cpool->resolved_klass_at(i); 481 if (kls->name() == sym) { 482 found_klass = kls; 483 break; 484 } 485 } 486 } 487 } 488 489 if (found_klass != NULL) { 490 // Found it. Build a CI handle. 491 return get_klass(found_klass); 492 } 493 494 if (require_local) return NULL; 495 496 // Not yet loaded into the VM, or not governed by loader constraints. 497 // Make a CI representative for it. 498 return get_unloaded_klass(accessing_klass, name); 499 } 500 501 // ------------------------------------------------------------------ 502 // ciEnv::get_klass_by_name 503 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, 504 ciSymbol* klass_name, 505 bool require_local) { 506 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, 507 constantPoolHandle(), 508 klass_name, 509 require_local);) 510 } 511 512 // ------------------------------------------------------------------ 513 // ciEnv::get_klass_by_index_impl 514 // 515 // Implementation of get_klass_by_index. 516 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool, 517 int index, 518 bool& is_accessible, 519 ciInstanceKlass* accessor) { 520 EXCEPTION_CONTEXT; 521 Klass* klass = NULL; 522 Symbol* klass_name = NULL; 523 524 if (cpool->tag_at(index).is_symbol()) { 525 klass_name = cpool->symbol_at(index); 526 } else { 527 // Check if it's resolved if it's not a symbol constant pool entry. 528 klass = ConstantPool::klass_at_if_loaded(cpool, index); 529 // Try to look it up by name. 530 if (klass == NULL) { 531 klass_name = cpool->klass_name_at(index); 532 } 533 } 534 535 if (klass == 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(const 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(const 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 index = cpool->object_to_cp_index(cache_index); 593 oop obj = cpool->resolved_references()->obj_at(cache_index); 594 if (obj != NULL) { 595 if (obj == Universe::the_null_sentinel()) { 596 return ciConstant(T_OBJECT, get_object(NULL)); 597 } 598 BasicType bt = T_OBJECT; 599 if (cpool->tag_at(index).is_dynamic_constant()) 600 bt = FieldType::basic_type(cpool->uncached_signature_ref_at(index)); 601 if (is_reference_type(bt)) { 602 } else { 603 // we have to unbox the primitive value 604 if (!is_java_primitive(bt)) return ciConstant(); 605 jvalue value; 606 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value); 607 assert(bt2 == bt, ""); 608 switch (bt2) { 609 case T_DOUBLE: return ciConstant(value.d); 610 case T_FLOAT: return ciConstant(value.f); 611 case T_LONG: return ciConstant(value.j); 612 case T_INT: return ciConstant(bt2, value.i); 613 case T_SHORT: return ciConstant(bt2, value.s); 614 case T_BYTE: return ciConstant(bt2, value.b); 615 case T_CHAR: return ciConstant(bt2, value.c); 616 case T_BOOLEAN: return ciConstant(bt2, value.z); 617 default: return ciConstant(); 618 } 619 } 620 ciObject* ciobj = get_object(obj); 621 if (ciobj->is_array()) { 622 return ciConstant(T_ARRAY, ciobj); 623 } else { 624 assert(ciobj->is_instance(), "should be an instance"); 625 return ciConstant(T_OBJECT, ciobj); 626 } 627 } 628 } 629 constantTag tag = cpool->tag_at(index); 630 if (tag.is_int()) { 631 return ciConstant(T_INT, (jint)cpool->int_at(index)); 632 } else if (tag.is_long()) { 633 return ciConstant((jlong)cpool->long_at(index)); 634 } else if (tag.is_float()) { 635 return ciConstant((jfloat)cpool->float_at(index)); 636 } else if (tag.is_double()) { 637 return ciConstant((jdouble)cpool->double_at(index)); 638 } else if (tag.is_string()) { 639 oop string = NULL; 640 assert(cache_index >= 0, "should have a cache index"); 641 if (cpool->is_pseudo_string_at(index)) { 642 string = cpool->pseudo_string_at(index, cache_index); 643 } else { 644 string = cpool->string_at(index, cache_index, THREAD); 645 if (HAS_PENDING_EXCEPTION) { 646 CLEAR_PENDING_EXCEPTION; 647 record_out_of_memory_failure(); 648 return ciConstant(); 649 } 650 } 651 ciObject* constant = get_object(string); 652 if (constant->is_array()) { 653 return ciConstant(T_ARRAY, constant); 654 } else { 655 assert (constant->is_instance(), "must be an instance, or not? "); 656 return ciConstant(T_OBJECT, constant); 657 } 658 } else if (tag.is_klass() || tag.is_unresolved_klass()) { 659 // 4881222: allow ldc to take a class type 660 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); 661 if (HAS_PENDING_EXCEPTION) { 662 CLEAR_PENDING_EXCEPTION; 663 record_out_of_memory_failure(); 664 return ciConstant(); 665 } 666 assert (klass->is_instance_klass() || klass->is_array_klass(), 667 "must be an instance or array klass "); 668 return ciConstant(T_OBJECT, klass->java_mirror()); 669 } else if (tag.is_method_type()) { 670 // must execute Java code to link this CP entry into cache[i].f1 671 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); 672 ciObject* ciobj = get_unloaded_method_type_constant(signature); 673 return ciConstant(T_OBJECT, ciobj); 674 } else if (tag.is_method_handle()) { 675 // must execute Java code to link this CP entry into cache[i].f1 676 int ref_kind = cpool->method_handle_ref_kind_at(index); 677 int callee_index = cpool->method_handle_klass_index_at(index); 678 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); 679 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); 680 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); 681 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); 682 return ciConstant(T_OBJECT, ciobj); 683 } else if (tag.is_dynamic_constant()) { 684 return ciConstant(); 685 } else { 686 ShouldNotReachHere(); 687 return ciConstant(); 688 } 689 } 690 691 // ------------------------------------------------------------------ 692 // ciEnv::get_constant_by_index 693 // 694 // Pull a constant out of the constant pool. How appropriate. 695 // 696 // Implementation note: this query is currently in no way cached. 697 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool, 698 int pool_index, int cache_index, 699 ciInstanceKlass* accessor) { 700 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) 701 } 702 703 // ------------------------------------------------------------------ 704 // ciEnv::get_field_by_index_impl 705 // 706 // Implementation of get_field_by_index. 707 // 708 // Implementation note: the results of field lookups are cached 709 // in the accessor klass. 710 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, 711 int index) { 712 ciConstantPoolCache* cache = accessor->field_cache(); 713 if (cache == NULL) { 714 ciField* field = new (arena()) ciField(accessor, index); 715 return field; 716 } else { 717 ciField* field = (ciField*)cache->get(index); 718 if (field == NULL) { 719 field = new (arena()) ciField(accessor, index); 720 cache->insert(index, field); 721 } 722 return field; 723 } 724 } 725 726 // ------------------------------------------------------------------ 727 // ciEnv::get_field_by_index 728 // 729 // Get a field by index from a klass's constant pool. 730 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, 731 int index) { 732 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) 733 } 734 735 // ------------------------------------------------------------------ 736 // ciEnv::lookup_method 737 // 738 // Perform an appropriate method lookup based on accessor, holder, 739 // name, signature, and bytecode. 740 Method* ciEnv::lookup_method(ciInstanceKlass* accessor, 741 ciKlass* holder, 742 Symbol* name, 743 Symbol* sig, 744 Bytecodes::Code bc, 745 constantTag tag) { 746 // Accessibility checks are performed in ciEnv::get_method_by_index_impl. 747 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible"); 748 749 InstanceKlass* accessor_klass = accessor->get_instanceKlass(); 750 Klass* holder_klass = holder->get_Klass(); 751 methodHandle dest_method; 752 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag); 753 switch (bc) { 754 case Bytecodes::_invokestatic: 755 dest_method = 756 LinkResolver::resolve_static_call_or_null(link_info); 757 break; 758 case Bytecodes::_invokespecial: 759 dest_method = 760 LinkResolver::resolve_special_call_or_null(link_info); 761 break; 762 case Bytecodes::_invokeinterface: 763 dest_method = 764 LinkResolver::linktime_resolve_interface_method_or_null(link_info); 765 break; 766 case Bytecodes::_invokevirtual: 767 dest_method = 768 LinkResolver::linktime_resolve_virtual_method_or_null(link_info); 769 break; 770 default: ShouldNotReachHere(); 771 } 772 773 return dest_method(); 774 } 775 776 777 // ------------------------------------------------------------------ 778 // ciEnv::get_method_by_index_impl 779 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool, 780 int index, Bytecodes::Code bc, 781 ciInstanceKlass* accessor) { 782 if (bc == Bytecodes::_invokedynamic) { 783 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index); 784 bool is_resolved = !cpce->is_f1_null(); 785 // FIXME: code generation could allow for null (unlinked) call site 786 // The call site could be made patchable as follows: 787 // Load the appendix argument from the constant pool. 788 // Test the appendix argument and jump to a known deopt routine if it is null. 789 // Jump through a patchable call site, which is initially a deopt routine. 790 // Patch the call site to the nmethod entry point of the static compiled lambda form. 791 // As with other two-component call sites, both values must be independently verified. 792 793 if (is_resolved) { 794 // Get the invoker Method* from the constant pool. 795 // (The appendix argument, if any, will be noted in the method's signature.) 796 Method* adapter = cpce->f1_as_method(); 797 return get_method(adapter); 798 } 799 800 // Fake a method that is equivalent to a declared method. 801 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass()); 802 ciSymbol* name = ciSymbol::invokeBasic_name(); 803 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index)); 804 return get_unloaded_method(holder, name, signature, accessor); 805 } else { 806 const int holder_index = cpool->klass_ref_index_at(index); 807 bool holder_is_accessible; 808 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); 809 810 // Get the method's name and signature. 811 Symbol* name_sym = cpool->name_ref_at(index); 812 Symbol* sig_sym = cpool->signature_ref_at(index); 813 814 if (cpool->has_preresolution() 815 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) && 816 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) { 817 // Short-circuit lookups for JSR 292-related call sites. 818 // That is, do not rely only on name-based lookups, because they may fail 819 // if the names are not resolvable in the boot class loader (7056328). 820 switch (bc) { 821 case Bytecodes::_invokevirtual: 822 case Bytecodes::_invokeinterface: 823 case Bytecodes::_invokespecial: 824 case Bytecodes::_invokestatic: 825 { 826 Method* m = ConstantPool::method_at_if_loaded(cpool, index); 827 if (m != NULL) { 828 return get_method(m); 829 } 830 } 831 break; 832 default: 833 break; 834 } 835 } 836 837 if (holder_is_accessible) { // Our declared holder is loaded. 838 constantTag tag = cpool->tag_ref_at(index); 839 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?"); 840 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag); 841 if (m != NULL && 842 (bc == Bytecodes::_invokestatic 843 ? m->method_holder()->is_not_initialized() 844 : !m->method_holder()->is_loaded())) { 845 m = NULL; 846 } 847 #ifdef ASSERT 848 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) { 849 m = NULL; 850 } 851 #endif 852 if (m != NULL) { 853 // We found the method. 854 return get_method(m); 855 } 856 } 857 858 // Either the declared holder was not loaded, or the method could 859 // not be found. Create a dummy ciMethod to represent the failed 860 // lookup. 861 ciSymbol* name = get_symbol(name_sym); 862 ciSymbol* signature = get_symbol(sig_sym); 863 return get_unloaded_method(holder, name, signature, accessor); 864 } 865 } 866 867 868 // ------------------------------------------------------------------ 869 // ciEnv::get_instance_klass_for_declared_method_holder 870 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { 871 // For the case of <array>.clone(), the method holder can be a ciArrayKlass 872 // instead of a ciInstanceKlass. For that case simply pretend that the 873 // declared holder is Object.clone since that's where the call will bottom out. 874 // A more correct fix would trickle out through many interfaces in CI, 875 // requiring ciInstanceKlass* to become ciKlass* and many more places would 876 // require checks to make sure the expected type was found. Given that this 877 // only occurs for clone() the more extensive fix seems like overkill so 878 // instead we simply smear the array type into Object. 879 guarantee(method_holder != NULL, "no method holder"); 880 if (method_holder->is_instance_klass()) { 881 return method_holder->as_instance_klass(); 882 } else if (method_holder->is_array_klass()) { 883 return current()->Object_klass(); 884 } else { 885 ShouldNotReachHere(); 886 } 887 return NULL; 888 } 889 890 891 // ------------------------------------------------------------------ 892 // ciEnv::get_method_by_index 893 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool, 894 int index, Bytecodes::Code bc, 895 ciInstanceKlass* accessor) { 896 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);) 897 } 898 899 900 // ------------------------------------------------------------------ 901 // ciEnv::name_buffer 902 char *ciEnv::name_buffer(int req_len) { 903 if (_name_buffer_len < req_len) { 904 if (_name_buffer == NULL) { 905 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); 906 _name_buffer_len = req_len; 907 } else { 908 _name_buffer = 909 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); 910 _name_buffer_len = req_len; 911 } 912 } 913 return _name_buffer; 914 } 915 916 // ------------------------------------------------------------------ 917 // ciEnv::is_in_vm 918 bool ciEnv::is_in_vm() { 919 return JavaThread::current()->thread_state() == _thread_in_vm; 920 } 921 922 bool ciEnv::system_dictionary_modification_counter_changed() { 923 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); 924 } 925 926 // ------------------------------------------------------------------ 927 // ciEnv::validate_compile_task_dependencies 928 // 929 // Check for changes during compilation (e.g. class loads, evolution, 930 // breakpoints, call site invalidation). 931 void ciEnv::validate_compile_task_dependencies(ciMethod* target) { 932 if (failing()) return; // no need for further checks 933 934 bool counter_changed = system_dictionary_modification_counter_changed(); 935 Dependencies::DepType result = dependencies()->validate_dependencies(_task, counter_changed); 936 if (result != Dependencies::end_marker) { 937 if (result == Dependencies::call_site_target_value) { 938 _inc_decompile_count_on_failure = false; 939 record_failure("call site target change"); 940 } else if (Dependencies::is_klass_type(result)) { 941 record_failure("invalid non-klass dependency"); 942 } else { 943 record_failure("concurrent class loading"); 944 } 945 } 946 } 947 948 // ------------------------------------------------------------------ 949 // ciEnv::register_method 950 void ciEnv::register_method(ciMethod* target, 951 int entry_bci, 952 CodeOffsets* offsets, 953 int orig_pc_offset, 954 CodeBuffer* code_buffer, 955 int frame_words, 956 OopMapSet* oop_map_set, 957 ExceptionHandlerTable* handler_table, 958 ImplicitExceptionTable* inc_table, 959 AbstractCompiler* compiler, 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 NoSafepointVerifier 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 && _inc_decompile_count_on_failure) { 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, task()->comp_level()); 1038 1039 // Free codeBlobs 1040 code_buffer->free_blob(); 1041 1042 if (nm != NULL) { 1043 nm->set_has_unsafe_access(has_unsafe_access); 1044 nm->set_has_wide_vectors(has_wide_vectors); 1045 #if INCLUDE_RTM_OPT 1046 nm->set_rtm_state(rtm_state); 1047 #endif 1048 1049 // Record successful registration. 1050 // (Put nm into the task handle *before* publishing to the Java heap.) 1051 if (task() != NULL) { 1052 task()->set_code(nm); 1053 } 1054 1055 if (entry_bci == InvocationEntryBci) { 1056 if (TieredCompilation) { 1057 // If there is an old version we're done with it 1058 CompiledMethod* old = method->code(); 1059 if (TraceMethodReplacement && old != NULL) { 1060 ResourceMark rm; 1061 char *method_name = method->name_and_sig_as_C_string(); 1062 tty->print_cr("Replacing method %s", method_name); 1063 } 1064 if (old != NULL) { 1065 old->make_not_used(); 1066 } 1067 } 1068 if (TraceNMethodInstalls) { 1069 ResourceMark rm; 1070 char *method_name = method->name_and_sig_as_C_string(); 1071 ttyLocker ttyl; 1072 tty->print_cr("Installing method (%d) %s ", 1073 task()->comp_level(), 1074 method_name); 1075 } 1076 // Allow the code to be executed 1077 method->set_code(method, nm); 1078 } else { 1079 if (TraceNMethodInstalls) { 1080 ResourceMark rm; 1081 char *method_name = method->name_and_sig_as_C_string(); 1082 ttyLocker ttyl; 1083 tty->print_cr("Installing osr method (%d) %s @ %d", 1084 task()->comp_level(), 1085 method_name, 1086 entry_bci); 1087 } 1088 method->method_holder()->add_osr_nmethod(nm); 1089 } 1090 nm->make_in_use(); 1091 } 1092 } // safepoints are allowed again 1093 1094 if (nm != NULL) { 1095 // JVMTI -- compiled method notification (must be done outside lock) 1096 nm->post_compiled_method_load_event(); 1097 } else { 1098 // The CodeCache is full. 1099 record_failure("code cache is full"); 1100 } 1101 } 1102 1103 1104 // ------------------------------------------------------------------ 1105 // ciEnv::find_system_klass 1106 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { 1107 VM_ENTRY_MARK; 1108 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false); 1109 } 1110 1111 // ------------------------------------------------------------------ 1112 // ciEnv::comp_level 1113 int ciEnv::comp_level() { 1114 if (task() == NULL) return CompLevel_highest_tier; 1115 return task()->comp_level(); 1116 } 1117 1118 // ------------------------------------------------------------------ 1119 // ciEnv::compile_id 1120 uint ciEnv::compile_id() { 1121 if (task() == NULL) return 0; 1122 return task()->compile_id(); 1123 } 1124 1125 // ------------------------------------------------------------------ 1126 // ciEnv::notice_inlined_method() 1127 void ciEnv::notice_inlined_method(ciMethod* method) { 1128 _num_inlined_bytecodes += method->code_size_for_inlining(); 1129 } 1130 1131 // ------------------------------------------------------------------ 1132 // ciEnv::num_inlined_bytecodes() 1133 int ciEnv::num_inlined_bytecodes() const { 1134 return _num_inlined_bytecodes; 1135 } 1136 1137 // ------------------------------------------------------------------ 1138 // ciEnv::record_failure() 1139 void ciEnv::record_failure(const char* reason) { 1140 if (_failure_reason == NULL) { 1141 // Record the first failure reason. 1142 _failure_reason = reason; 1143 } 1144 } 1145 1146 void ciEnv::report_failure(const char* reason) { 1147 // Create and fire JFR event 1148 EventCompilationFailure event; 1149 if (event.should_commit()) { 1150 event.set_compileId(compile_id()); 1151 event.set_failureMessage(reason); 1152 event.commit(); 1153 } 1154 } 1155 1156 // ------------------------------------------------------------------ 1157 // ciEnv::record_method_not_compilable() 1158 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) { 1159 int new_compilable = 1160 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ; 1161 1162 // Only note transitions to a worse state 1163 if (new_compilable > _compilable) { 1164 if (log() != NULL) { 1165 if (all_tiers) { 1166 log()->elem("method_not_compilable"); 1167 } else { 1168 log()->elem("method_not_compilable_at_tier level='%d'", 1169 current()->task()->comp_level()); 1170 } 1171 } 1172 _compilable = new_compilable; 1173 1174 // Reset failure reason; this one is more important. 1175 _failure_reason = NULL; 1176 record_failure(reason); 1177 } 1178 } 1179 1180 // ------------------------------------------------------------------ 1181 // ciEnv::record_out_of_memory_failure() 1182 void ciEnv::record_out_of_memory_failure() { 1183 // If memory is low, we stop compiling methods. 1184 record_method_not_compilable("out of memory"); 1185 } 1186 1187 ciInstance* ciEnv::unloaded_ciinstance() { 1188 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();) 1189 } 1190 1191 // ------------------------------------------------------------------ 1192 // ciEnv::dump_replay_data* 1193 1194 // Don't change thread state and acquire any locks. 1195 // Safe to call from VM error reporter. 1196 1197 void ciEnv::dump_compile_data(outputStream* out) { 1198 CompileTask* task = this->task(); 1199 if (task) { 1200 Method* method = task->method(); 1201 int entry_bci = task->osr_bci(); 1202 int comp_level = task->comp_level(); 1203 out->print("compile %s %s %s %d %d", 1204 method->klass_name()->as_quoted_ascii(), 1205 method->name()->as_quoted_ascii(), 1206 method->signature()->as_quoted_ascii(), 1207 entry_bci, comp_level); 1208 if (compiler_data() != NULL) { 1209 if (is_c2_compile(comp_level)) { 1210 #ifdef COMPILER2 1211 // Dump C2 inlining data. 1212 ((Compile*)compiler_data())->dump_inline_data(out); 1213 #endif 1214 } else if (is_c1_compile(comp_level)) { 1215 #ifdef COMPILER1 1216 // Dump C1 inlining data. 1217 ((Compilation*)compiler_data())->dump_inline_data(out); 1218 #endif 1219 } 1220 } 1221 out->cr(); 1222 } 1223 } 1224 1225 void ciEnv::dump_replay_data_unsafe(outputStream* out) { 1226 ResourceMark rm; 1227 #if INCLUDE_JVMTI 1228 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables); 1229 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint); 1230 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions); 1231 #endif // INCLUDE_JVMTI 1232 1233 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata(); 1234 out->print_cr("# %d ciObject found", objects->length()); 1235 for (int i = 0; i < objects->length(); i++) { 1236 objects->at(i)->dump_replay_data(out); 1237 } 1238 dump_compile_data(out); 1239 out->flush(); 1240 } 1241 1242 void ciEnv::dump_replay_data(outputStream* out) { 1243 GUARDED_VM_ENTRY( 1244 MutexLocker ml(Compile_lock); 1245 dump_replay_data_unsafe(out); 1246 ) 1247 } 1248 1249 void ciEnv::dump_replay_data(int compile_id) { 1250 static char buffer[O_BUFLEN]; 1251 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id); 1252 if (ret > 0) { 1253 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1254 if (fd != -1) { 1255 FILE* replay_data_file = os::open(fd, "w"); 1256 if (replay_data_file != NULL) { 1257 fileStream replay_data_stream(replay_data_file, /*need_close=*/true); 1258 dump_replay_data(&replay_data_stream); 1259 tty->print_cr("# Compiler replay data is saved as: %s", buffer); 1260 } else { 1261 tty->print_cr("# Can't open file to dump replay data."); 1262 } 1263 } 1264 } 1265 } 1266 1267 void ciEnv::dump_inline_data(int compile_id) { 1268 static char buffer[O_BUFLEN]; 1269 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id); 1270 if (ret > 0) { 1271 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1272 if (fd != -1) { 1273 FILE* inline_data_file = os::open(fd, "w"); 1274 if (inline_data_file != NULL) { 1275 fileStream replay_data_stream(inline_data_file, /*need_close=*/true); 1276 GUARDED_VM_ENTRY( 1277 MutexLocker ml(Compile_lock); 1278 dump_compile_data(&replay_data_stream); 1279 ) 1280 replay_data_stream.flush(); 1281 tty->print("# Compiler inline data is saved as: "); 1282 tty->print_cr("%s", buffer); 1283 } else { 1284 tty->print_cr("# Can't open file to dump inline data."); 1285 } 1286 } 1287 } 1288 }