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.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/sharedRuntime.hpp" 61 #include "runtime/thread.inline.hpp" 62 #include "trace/tracing.hpp" 63 #include "utilities/dtrace.hpp" 64 #include "utilities/macros.hpp" 65 #ifdef COMPILER1 66 #include "c1/c1_Runtime1.hpp" 67 #endif 68 #ifdef COMPILER2 69 #include "opto/runtime.hpp" 70 #endif 71 72 // ciEnv 73 // 74 // This class is the top level broker for requests from the compiler 75 // to the VM. 76 77 ciObject* ciEnv::_null_object_instance; 78 79 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL; 80 WK_KLASSES_DO(WK_KLASS_DEFN) 81 #undef WK_KLASS_DEFN 82 83 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; 84 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; 85 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; 86 87 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL; 88 jobject ciEnv::_ArrayStoreException_handle = NULL; 89 jobject ciEnv::_ClassCastException_handle = NULL; 90 91 #ifndef PRODUCT 92 static bool firstEnv = true; 93 #endif /* PRODUCT */ 94 95 // ------------------------------------------------------------------ 96 // ciEnv::ciEnv 97 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) 98 : _ciEnv_arena(mtCompiler) { 99 VM_ENTRY_MARK; 100 101 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 102 thread->set_env(this); 103 assert(ciEnv::current() == this, "sanity"); 104 105 _oop_recorder = NULL; 106 _debug_info = NULL; 107 _dependencies = NULL; 108 _failure_reason = NULL; 109 _inc_decompile_count_on_failure = true; 110 _compilable = MethodCompilable; 111 _break_at_compile = false; 112 _compiler_data = NULL; 113 #ifndef PRODUCT 114 assert(!firstEnv, "not initialized properly"); 115 #endif /* !PRODUCT */ 116 117 _system_dictionary_modification_counter = system_dictionary_modification_counter; 118 _num_inlined_bytecodes = 0; 119 assert(task == NULL || thread->task() == task, "sanity"); 120 _task = task; 121 _log = NULL; 122 123 // Temporary buffer for creating symbols and such. 124 _name_buffer = NULL; 125 _name_buffer_len = 0; 126 127 _arena = &_ciEnv_arena; 128 _factory = new (_arena) ciObjectFactory(_arena, 128); 129 130 // Preload commonly referenced system ciObjects. 131 132 // During VM initialization, these instances have not yet been created. 133 // Assertions ensure that these instances are not accessed before 134 // their initialization. 135 136 assert(Universe::is_fully_initialized(), "should be complete"); 137 138 oop o = Universe::null_ptr_exception_instance(); 139 assert(o != NULL, "should have been initialized"); 140 _NullPointerException_instance = get_object(o)->as_instance(); 141 o = Universe::arithmetic_exception_instance(); 142 assert(o != NULL, "should have been initialized"); 143 _ArithmeticException_instance = get_object(o)->as_instance(); 144 145 _ArrayIndexOutOfBoundsException_instance = NULL; 146 _ArrayStoreException_instance = NULL; 147 _ClassCastException_instance = NULL; 148 _the_null_string = NULL; 149 _the_min_jint_string = NULL; 150 151 _jvmti_can_hotswap_or_post_breakpoint = false; 152 _jvmti_can_access_local_variables = false; 153 _jvmti_can_post_on_exceptions = false; 154 _jvmti_can_pop_frame = false; 155 } 156 157 ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) { 158 ASSERT_IN_VM; 159 160 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. 161 CompilerThread* current_thread = CompilerThread::current(); 162 assert(current_thread->env() == NULL, "must be"); 163 current_thread->set_env(this); 164 assert(ciEnv::current() == this, "sanity"); 165 166 _oop_recorder = NULL; 167 _debug_info = NULL; 168 _dependencies = NULL; 169 _failure_reason = NULL; 170 _inc_decompile_count_on_failure = true; 171 _compilable = MethodCompilable_never; 172 _break_at_compile = false; 173 _compiler_data = NULL; 174 #ifndef PRODUCT 175 assert(firstEnv, "must be first"); 176 firstEnv = false; 177 #endif /* !PRODUCT */ 178 179 _system_dictionary_modification_counter = 0; 180 _num_inlined_bytecodes = 0; 181 _task = NULL; 182 _log = NULL; 183 184 // Temporary buffer for creating symbols and such. 185 _name_buffer = NULL; 186 _name_buffer_len = 0; 187 188 _arena = arena; 189 _factory = new (_arena) ciObjectFactory(_arena, 128); 190 191 // Preload commonly referenced system ciObjects. 192 193 // During VM initialization, these instances have not yet been created. 194 // Assertions ensure that these instances are not accessed before 195 // their initialization. 196 197 assert(Universe::is_fully_initialized(), "must be"); 198 199 _NullPointerException_instance = NULL; 200 _ArithmeticException_instance = NULL; 201 _ArrayIndexOutOfBoundsException_instance = NULL; 202 _ArrayStoreException_instance = NULL; 203 _ClassCastException_instance = NULL; 204 _the_null_string = NULL; 205 _the_min_jint_string = NULL; 206 207 _jvmti_can_hotswap_or_post_breakpoint = false; 208 _jvmti_can_access_local_variables = false; 209 _jvmti_can_post_on_exceptions = false; 210 _jvmti_can_pop_frame = false; 211 } 212 213 ciEnv::~ciEnv() { 214 GUARDED_VM_ENTRY( 215 CompilerThread* current_thread = CompilerThread::current(); 216 _factory->remove_symbols(); 217 // Need safepoint to clear the env on the thread. RedefineClasses might 218 // be reading it. 219 current_thread->set_env(NULL); 220 ) 221 } 222 223 // ------------------------------------------------------------------ 224 // Cache Jvmti state 225 void ciEnv::cache_jvmti_state() { 226 VM_ENTRY_MARK; 227 // Get Jvmti capabilities under lock to get consistant values. 228 MutexLocker mu(JvmtiThreadState_lock); 229 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); 230 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); 231 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); 232 _jvmti_can_pop_frame = JvmtiExport::can_pop_frame(); 233 } 234 235 bool ciEnv::should_retain_local_variables() const { 236 return _jvmti_can_access_local_variables || _jvmti_can_pop_frame; 237 } 238 239 bool ciEnv::jvmti_state_changed() const { 240 if (!_jvmti_can_access_local_variables && 241 JvmtiExport::can_access_local_variables()) { 242 return true; 243 } 244 if (!_jvmti_can_hotswap_or_post_breakpoint && 245 JvmtiExport::can_hotswap_or_post_breakpoint()) { 246 return true; 247 } 248 if (!_jvmti_can_post_on_exceptions && 249 JvmtiExport::can_post_on_exceptions()) { 250 return true; 251 } 252 if (!_jvmti_can_pop_frame && 253 JvmtiExport::can_pop_frame()) { 254 return true; 255 } 256 return false; 257 } 258 259 // ------------------------------------------------------------------ 260 // Cache DTrace flags 261 void ciEnv::cache_dtrace_flags() { 262 // Need lock? 263 _dtrace_extended_probes = ExtendedDTraceProbes; 264 if (_dtrace_extended_probes) { 265 _dtrace_monitor_probes = true; 266 _dtrace_method_probes = true; 267 _dtrace_alloc_probes = true; 268 } else { 269 _dtrace_monitor_probes = DTraceMonitorProbes; 270 _dtrace_method_probes = DTraceMethodProbes; 271 _dtrace_alloc_probes = DTraceAllocProbes; 272 } 273 } 274 275 // ------------------------------------------------------------------ 276 // helper for lazy exception creation 277 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { 278 VM_ENTRY_MARK; 279 if (handle == NULL) { 280 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. 281 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD); 282 jobject objh = NULL; 283 if (!HAS_PENDING_EXCEPTION && k != NULL) { 284 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD); 285 if (!HAS_PENDING_EXCEPTION) 286 objh = JNIHandles::make_global(Handle(THREAD, obj)); 287 } 288 if (HAS_PENDING_EXCEPTION) { 289 CLEAR_PENDING_EXCEPTION; 290 } else { 291 handle = objh; 292 } 293 } 294 oop obj = JNIHandles::resolve(handle); 295 return obj == NULL? NULL: get_object(obj)->as_instance(); 296 } 297 298 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { 299 if (_ArrayIndexOutOfBoundsException_instance == NULL) { 300 _ArrayIndexOutOfBoundsException_instance 301 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, 302 vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); 303 } 304 return _ArrayIndexOutOfBoundsException_instance; 305 } 306 ciInstance* ciEnv::ArrayStoreException_instance() { 307 if (_ArrayStoreException_instance == NULL) { 308 _ArrayStoreException_instance 309 = get_or_create_exception(_ArrayStoreException_handle, 310 vmSymbols::java_lang_ArrayStoreException()); 311 } 312 return _ArrayStoreException_instance; 313 } 314 ciInstance* ciEnv::ClassCastException_instance() { 315 if (_ClassCastException_instance == NULL) { 316 _ClassCastException_instance 317 = get_or_create_exception(_ClassCastException_handle, 318 vmSymbols::java_lang_ClassCastException()); 319 } 320 return _ClassCastException_instance; 321 } 322 323 ciInstance* ciEnv::the_null_string() { 324 if (_the_null_string == NULL) { 325 VM_ENTRY_MARK; 326 _the_null_string = get_object(Universe::the_null_string())->as_instance(); 327 } 328 return _the_null_string; 329 } 330 331 ciInstance* ciEnv::the_min_jint_string() { 332 if (_the_min_jint_string == NULL) { 333 VM_ENTRY_MARK; 334 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); 335 } 336 return _the_min_jint_string; 337 } 338 339 // ------------------------------------------------------------------ 340 // ciEnv::get_method_from_handle 341 ciMethod* ciEnv::get_method_from_handle(Method* method) { 342 VM_ENTRY_MARK; 343 return get_metadata(method)->as_method(); 344 } 345 346 // ------------------------------------------------------------------ 347 // ciEnv::array_element_offset_in_bytes 348 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { 349 VM_ENTRY_MARK; 350 objArrayOop a = (objArrayOop)a_h->get_oop(); 351 assert(a->is_objArray(), ""); 352 int length = a->length(); 353 oop o = o_h->get_oop(); 354 for (int i = 0; i < length; i++) { 355 if (a->obj_at(i) == o) return i; 356 } 357 return -1; 358 } 359 360 361 // ------------------------------------------------------------------ 362 // ciEnv::check_klass_accessiblity 363 // 364 // Note: the logic of this method should mirror the logic of 365 // ConstantPool::verify_constant_pool_resolve. 366 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, 367 Klass* resolved_klass) { 368 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { 369 return true; 370 } 371 if (accessing_klass->is_obj_array_klass()) { 372 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); 373 } 374 if (!accessing_klass->is_instance_klass()) { 375 return true; 376 } 377 378 if (resolved_klass->is_objArray_klass()) { 379 // Find the element klass, if this is an array. 380 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass(); 381 } 382 if (resolved_klass->is_instance_klass()) { 383 return (Reflection::verify_class_access(accessing_klass->get_Klass(), 384 InstanceKlass::cast(resolved_klass), 385 true) == Reflection::ACCESS_OK); 386 } 387 return true; 388 } 389 390 // ------------------------------------------------------------------ 391 // ciEnv::get_klass_by_name_impl 392 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, 393 const constantPoolHandle& cpool, 394 ciSymbol* name, 395 bool require_local) { 396 ASSERT_IN_VM; 397 EXCEPTION_CONTEXT; 398 399 // Now we need to check the SystemDictionary 400 Symbol* sym = name->get_symbol(); 401 if (sym->byte_at(0) == 'L' && 402 sym->byte_at(sym->utf8_length()-1) == ';') { 403 // This is a name from a signature. Strip off the trimmings. 404 // Call recursive to keep scope of strippedsym. 405 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1, 406 sym->utf8_length()-2, 407 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); 408 ciSymbol* strippedname = get_symbol(strippedsym); 409 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); 410 } 411 412 // Check for prior unloaded klass. The SystemDictionary's answers 413 // can vary over time but the compiler needs consistency. 414 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); 415 if (unloaded_klass != NULL) { 416 if (require_local) return NULL; 417 return unloaded_klass; 418 } 419 420 Handle loader(THREAD, (oop)NULL); 421 Handle domain(THREAD, (oop)NULL); 422 if (accessing_klass != NULL) { 423 loader = Handle(THREAD, accessing_klass->loader()); 424 domain = Handle(THREAD, accessing_klass->protection_domain()); 425 } 426 427 // setup up the proper type to return on OOM 428 ciKlass* fail_type; 429 if (sym->byte_at(0) == '[') { 430 fail_type = _unloaded_ciobjarrayklass; 431 } else { 432 fail_type = _unloaded_ciinstance_klass; 433 } 434 Klass* found_klass; 435 { 436 ttyUnlocker ttyul; // release tty lock to avoid ordering problems 437 MutexLocker ml(Compile_lock); 438 Klass* kls; 439 if (!require_local) { 440 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, 441 KILL_COMPILE_ON_FATAL_(fail_type)); 442 } else { 443 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain, 444 KILL_COMPILE_ON_FATAL_(fail_type)); 445 } 446 found_klass = kls; 447 } 448 449 // If we fail to find an array klass, look again for its element type. 450 // The element type may be available either locally or via constraints. 451 // In either case, if we can find the element type in the system dictionary, 452 // we must build an array type around it. The CI requires array klasses 453 // to be loaded if their element klasses are loaded, except when memory 454 // is exhausted. 455 if (sym->byte_at(0) == '[' && 456 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) { 457 // We have an unloaded array. 458 // Build it on the fly if the element class exists. 459 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1, 460 sym->utf8_length()-1, 461 KILL_COMPILE_ON_FATAL_(fail_type)); 462 463 // Get element ciKlass recursively. 464 ciKlass* elem_klass = 465 get_klass_by_name_impl(accessing_klass, 466 cpool, 467 get_symbol(elem_sym), 468 require_local); 469 if (elem_klass != NULL && elem_klass->is_loaded()) { 470 // Now make an array for it 471 return ciObjArrayKlass::make_impl(elem_klass); 472 } 473 } 474 475 if (found_klass == NULL && !cpool.is_null() && cpool->has_preresolution()) { 476 // Look inside the constant pool for pre-resolved class entries. 477 for (int i = cpool->length() - 1; i >= 1; i--) { 478 if (cpool->tag_at(i).is_klass()) { 479 Klass* kls = cpool->resolved_klass_at(i); 480 if (kls->name() == sym) { 481 found_klass = kls; 482 break; 483 } 484 } 485 } 486 } 487 488 if (found_klass != NULL) { 489 // Found it. Build a CI handle. 490 return get_klass(found_klass); 491 } 492 493 if (require_local) return NULL; 494 495 // Not yet loaded into the VM, or not governed by loader constraints. 496 // Make a CI representative for it. 497 return get_unloaded_klass(accessing_klass, name); 498 } 499 500 // ------------------------------------------------------------------ 501 // ciEnv::get_klass_by_name 502 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, 503 ciSymbol* klass_name, 504 bool require_local) { 505 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, 506 constantPoolHandle(), 507 klass_name, 508 require_local);) 509 } 510 511 // ------------------------------------------------------------------ 512 // ciEnv::get_klass_by_index_impl 513 // 514 // Implementation of get_klass_by_index. 515 ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool, 516 int index, 517 bool& is_accessible, 518 ciInstanceKlass* accessor) { 519 EXCEPTION_CONTEXT; 520 Klass* klass = NULL; 521 Symbol* klass_name = NULL; 522 523 if (cpool->tag_at(index).is_symbol()) { 524 klass_name = cpool->symbol_at(index); 525 } else { 526 // Check if it's resolved if it's not a symbol constant pool entry. 527 klass = ConstantPool::klass_at_if_loaded(cpool, index); 528 // Try to look it up by name. 529 if (klass == NULL) { 530 klass_name = cpool->klass_name_at(index); 531 } 532 } 533 534 if (klass == NULL) { 535 // Not found in constant pool. Use the name to do the lookup. 536 ciKlass* k = get_klass_by_name_impl(accessor, 537 cpool, 538 get_symbol(klass_name), 539 false); 540 // Calculate accessibility the hard way. 541 if (!k->is_loaded()) { 542 is_accessible = false; 543 } else if (k->loader() != accessor->loader() && 544 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) { 545 // Loaded only remotely. Not linked yet. 546 is_accessible = false; 547 } else { 548 // Linked locally, and we must also check public/private, etc. 549 is_accessible = check_klass_accessibility(accessor, k->get_Klass()); 550 } 551 return k; 552 } 553 554 // Check for prior unloaded klass. The SystemDictionary's answers 555 // can vary over time but the compiler needs consistency. 556 ciSymbol* name = get_symbol(klass->name()); 557 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); 558 if (unloaded_klass != NULL) { 559 is_accessible = false; 560 return unloaded_klass; 561 } 562 563 // It is known to be accessible, since it was found in the constant pool. 564 is_accessible = true; 565 return get_klass(klass); 566 } 567 568 // ------------------------------------------------------------------ 569 // ciEnv::get_klass_by_index 570 // 571 // Get a klass from the constant pool. 572 ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool, 573 int index, 574 bool& is_accessible, 575 ciInstanceKlass* accessor) { 576 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) 577 } 578 579 // ------------------------------------------------------------------ 580 // ciEnv::get_constant_by_index_impl 581 // 582 // Implementation of get_constant_by_index(). 583 ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool, 584 int pool_index, int cache_index, 585 ciInstanceKlass* accessor) { 586 bool ignore_will_link; 587 EXCEPTION_CONTEXT; 588 int index = pool_index; 589 if (cache_index >= 0) { 590 assert(index < 0, "only one kind of index at a time"); 591 index = cpool->object_to_cp_index(cache_index); 592 oop obj = cpool->resolved_references()->obj_at(cache_index); 593 if (obj != NULL) { 594 if (obj == Universe::the_null_sentinel()) { 595 return ciConstant(T_OBJECT, get_object(NULL)); 596 } 597 BasicType bt = T_OBJECT; 598 if (cpool->tag_at(index).is_dynamic_constant()) 599 bt = FieldType::basic_type(cpool->uncached_signature_ref_at(index)); 600 if (is_reference_type(bt)) { 601 } else { 602 // we have to unbox the primitive value 603 if (!is_java_primitive(bt)) return ciConstant(); 604 jvalue value; 605 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value); 606 assert(bt2 == bt, ""); 607 switch (bt2) { 608 case T_DOUBLE: return ciConstant(value.d); 609 case T_FLOAT: return ciConstant(value.f); 610 case T_LONG: return ciConstant(value.j); 611 case T_INT: return ciConstant(bt2, value.i); 612 case T_SHORT: return ciConstant(bt2, value.s); 613 case T_BYTE: return ciConstant(bt2, value.b); 614 case T_CHAR: return ciConstant(bt2, value.c); 615 case T_BOOLEAN: return ciConstant(bt2, value.z); 616 default: return ciConstant(); 617 } 618 } 619 ciObject* ciobj = get_object(obj); 620 if (ciobj->is_array()) { 621 return ciConstant(T_ARRAY, ciobj); 622 } else { 623 assert(ciobj->is_instance(), "should be an instance"); 624 return ciConstant(T_OBJECT, ciobj); 625 } 626 } 627 } 628 constantTag tag = cpool->tag_at(index); 629 if (tag.is_int()) { 630 return ciConstant(T_INT, (jint)cpool->int_at(index)); 631 } else if (tag.is_long()) { 632 return ciConstant((jlong)cpool->long_at(index)); 633 } else if (tag.is_float()) { 634 return ciConstant((jfloat)cpool->float_at(index)); 635 } else if (tag.is_double()) { 636 return ciConstant((jdouble)cpool->double_at(index)); 637 } else if (tag.is_string()) { 638 oop string = NULL; 639 assert(cache_index >= 0, "should have a cache index"); 640 if (cpool->is_pseudo_string_at(index)) { 641 string = cpool->pseudo_string_at(index, cache_index); 642 } else { 643 string = cpool->string_at(index, cache_index, THREAD); 644 if (HAS_PENDING_EXCEPTION) { 645 CLEAR_PENDING_EXCEPTION; 646 record_out_of_memory_failure(); 647 return ciConstant(); 648 } 649 } 650 ciObject* constant = get_object(string); 651 if (constant->is_array()) { 652 return ciConstant(T_ARRAY, constant); 653 } else { 654 assert (constant->is_instance(), "must be an instance, or not? "); 655 return ciConstant(T_OBJECT, constant); 656 } 657 } else if (tag.is_klass() || tag.is_unresolved_klass()) { 658 // 4881222: allow ldc to take a class type 659 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); 660 if (HAS_PENDING_EXCEPTION) { 661 CLEAR_PENDING_EXCEPTION; 662 record_out_of_memory_failure(); 663 return ciConstant(); 664 } 665 assert (klass->is_instance_klass() || klass->is_array_klass(), 666 "must be an instance or array klass "); 667 return ciConstant(T_OBJECT, klass->java_mirror()); 668 } else if (tag.is_method_type()) { 669 // must execute Java code to link this CP entry into cache[i].f1 670 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); 671 ciObject* ciobj = get_unloaded_method_type_constant(signature); 672 return ciConstant(T_OBJECT, ciobj); 673 } else if (tag.is_method_handle()) { 674 // must execute Java code to link this CP entry into cache[i].f1 675 int ref_kind = cpool->method_handle_ref_kind_at(index); 676 int callee_index = cpool->method_handle_klass_index_at(index); 677 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); 678 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); 679 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); 680 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); 681 return ciConstant(T_OBJECT, ciobj); 682 } else if (tag.is_dynamic_constant()) { 683 return ciConstant(); 684 } else { 685 ShouldNotReachHere(); 686 return ciConstant(); 687 } 688 } 689 690 // ------------------------------------------------------------------ 691 // ciEnv::get_constant_by_index 692 // 693 // Pull a constant out of the constant pool. How appropriate. 694 // 695 // Implementation note: this query is currently in no way cached. 696 ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool, 697 int pool_index, int cache_index, 698 ciInstanceKlass* accessor) { 699 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) 700 } 701 702 // ------------------------------------------------------------------ 703 // ciEnv::get_field_by_index_impl 704 // 705 // Implementation of get_field_by_index. 706 // 707 // Implementation note: the results of field lookups are cached 708 // in the accessor klass. 709 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, 710 int index) { 711 ciConstantPoolCache* cache = accessor->field_cache(); 712 if (cache == NULL) { 713 ciField* field = new (arena()) ciField(accessor, index); 714 return field; 715 } else { 716 ciField* field = (ciField*)cache->get(index); 717 if (field == NULL) { 718 field = new (arena()) ciField(accessor, index); 719 cache->insert(index, field); 720 } 721 return field; 722 } 723 } 724 725 // ------------------------------------------------------------------ 726 // ciEnv::get_field_by_index 727 // 728 // Get a field by index from a klass's constant pool. 729 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, 730 int index) { 731 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) 732 } 733 734 // ------------------------------------------------------------------ 735 // ciEnv::lookup_method 736 // 737 // Perform an appropriate method lookup based on accessor, holder, 738 // name, signature, and bytecode. 739 Method* ciEnv::lookup_method(ciInstanceKlass* accessor, 740 ciKlass* holder, 741 Symbol* name, 742 Symbol* sig, 743 Bytecodes::Code bc, 744 constantTag tag) { 745 // Accessibility checks are performed in ciEnv::get_method_by_index_impl. 746 assert(check_klass_accessibility(accessor, holder->get_Klass()), "holder not accessible"); 747 748 InstanceKlass* accessor_klass = accessor->get_instanceKlass(); 749 Klass* holder_klass = holder->get_Klass(); 750 methodHandle dest_method; 751 LinkInfo link_info(holder_klass, name, sig, accessor_klass, LinkInfo::needs_access_check, tag); 752 switch (bc) { 753 case Bytecodes::_invokestatic: 754 dest_method = 755 LinkResolver::resolve_static_call_or_null(link_info); 756 break; 757 case Bytecodes::_invokespecial: 758 dest_method = 759 LinkResolver::resolve_special_call_or_null(link_info); 760 break; 761 case Bytecodes::_invokeinterface: 762 dest_method = 763 LinkResolver::linktime_resolve_interface_method_or_null(link_info); 764 break; 765 case Bytecodes::_invokevirtual: 766 dest_method = 767 LinkResolver::linktime_resolve_virtual_method_or_null(link_info); 768 break; 769 default: ShouldNotReachHere(); 770 } 771 772 return dest_method(); 773 } 774 775 776 // ------------------------------------------------------------------ 777 // ciEnv::get_method_by_index_impl 778 ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool, 779 int index, Bytecodes::Code bc, 780 ciInstanceKlass* accessor) { 781 if (bc == Bytecodes::_invokedynamic) { 782 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index); 783 bool is_resolved = !cpce->is_f1_null(); 784 // FIXME: code generation could allow for null (unlinked) call site 785 // The call site could be made patchable as follows: 786 // Load the appendix argument from the constant pool. 787 // Test the appendix argument and jump to a known deopt routine if it is null. 788 // Jump through a patchable call site, which is initially a deopt routine. 789 // Patch the call site to the nmethod entry point of the static compiled lambda form. 790 // As with other two-component call sites, both values must be independently verified. 791 792 if (is_resolved) { 793 // Get the invoker Method* from the constant pool. 794 // (The appendix argument, if any, will be noted in the method's signature.) 795 Method* adapter = cpce->f1_as_method(); 796 return get_method(adapter); 797 } 798 799 // Fake a method that is equivalent to a declared method. 800 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass()); 801 ciSymbol* name = ciSymbol::invokeBasic_name(); 802 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index)); 803 return get_unloaded_method(holder, name, signature, accessor); 804 } else { 805 const int holder_index = cpool->klass_ref_index_at(index); 806 bool holder_is_accessible; 807 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); 808 809 // Get the method's name and signature. 810 Symbol* name_sym = cpool->name_ref_at(index); 811 Symbol* sig_sym = cpool->signature_ref_at(index); 812 813 if (cpool->has_preresolution() 814 || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) && 815 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) { 816 // Short-circuit lookups for JSR 292-related call sites. 817 // That is, do not rely only on name-based lookups, because they may fail 818 // if the names are not resolvable in the boot class loader (7056328). 819 switch (bc) { 820 case Bytecodes::_invokevirtual: 821 case Bytecodes::_invokeinterface: 822 case Bytecodes::_invokespecial: 823 case Bytecodes::_invokestatic: 824 { 825 Method* m = ConstantPool::method_at_if_loaded(cpool, index); 826 if (m != NULL) { 827 return get_method(m); 828 } 829 } 830 break; 831 default: 832 break; 833 } 834 } 835 836 if (holder_is_accessible) { // Our declared holder is loaded. 837 constantTag tag = cpool->tag_ref_at(index); 838 assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?"); 839 Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag); 840 if (m != NULL && 841 (bc == Bytecodes::_invokestatic 842 ? m->method_holder()->is_not_initialized() 843 : !m->method_holder()->is_loaded())) { 844 m = NULL; 845 } 846 #ifdef ASSERT 847 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) { 848 m = NULL; 849 } 850 #endif 851 if (m != NULL) { 852 // We found the method. 853 return get_method(m); 854 } 855 } 856 857 // Either the declared holder was not loaded, or the method could 858 // not be found. Create a dummy ciMethod to represent the failed 859 // lookup. 860 ciSymbol* name = get_symbol(name_sym); 861 ciSymbol* signature = get_symbol(sig_sym); 862 return get_unloaded_method(holder, name, signature, accessor); 863 } 864 } 865 866 867 // ------------------------------------------------------------------ 868 // ciEnv::get_instance_klass_for_declared_method_holder 869 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { 870 // For the case of <array>.clone(), the method holder can be a ciArrayKlass 871 // instead of a ciInstanceKlass. For that case simply pretend that the 872 // declared holder is Object.clone since that's where the call will bottom out. 873 // A more correct fix would trickle out through many interfaces in CI, 874 // requiring ciInstanceKlass* to become ciKlass* and many more places would 875 // require checks to make sure the expected type was found. Given that this 876 // only occurs for clone() the more extensive fix seems like overkill so 877 // instead we simply smear the array type into Object. 878 guarantee(method_holder != NULL, "no method holder"); 879 if (method_holder->is_instance_klass()) { 880 return method_holder->as_instance_klass(); 881 } else if (method_holder->is_array_klass()) { 882 return current()->Object_klass(); 883 } else { 884 ShouldNotReachHere(); 885 } 886 return NULL; 887 } 888 889 890 // ------------------------------------------------------------------ 891 // ciEnv::get_method_by_index 892 ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool, 893 int index, Bytecodes::Code bc, 894 ciInstanceKlass* accessor) { 895 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);) 896 } 897 898 899 // ------------------------------------------------------------------ 900 // ciEnv::name_buffer 901 char *ciEnv::name_buffer(int req_len) { 902 if (_name_buffer_len < req_len) { 903 if (_name_buffer == NULL) { 904 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); 905 _name_buffer_len = req_len; 906 } else { 907 _name_buffer = 908 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); 909 _name_buffer_len = req_len; 910 } 911 } 912 return _name_buffer; 913 } 914 915 // ------------------------------------------------------------------ 916 // ciEnv::is_in_vm 917 bool ciEnv::is_in_vm() { 918 return JavaThread::current()->thread_state() == _thread_in_vm; 919 } 920 921 bool ciEnv::system_dictionary_modification_counter_changed() { 922 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); 923 } 924 925 // ------------------------------------------------------------------ 926 // ciEnv::validate_compile_task_dependencies 927 // 928 // Check for changes during compilation (e.g. class loads, evolution, 929 // breakpoints, call site invalidation). 930 void ciEnv::validate_compile_task_dependencies(ciMethod* target) { 931 if (failing()) return; // no need for further checks 932 933 bool counter_changed = system_dictionary_modification_counter_changed(); 934 Dependencies::DepType result = dependencies()->validate_dependencies(_task, counter_changed); 935 if (result != Dependencies::end_marker) { 936 if (result == Dependencies::call_site_target_value) { 937 _inc_decompile_count_on_failure = false; 938 record_failure("call site target change"); 939 } else if (Dependencies::is_klass_type(result)) { 940 record_failure("invalid non-klass dependency"); 941 } else { 942 record_failure("concurrent class loading"); 943 } 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 bool has_unsafe_access, 960 bool has_wide_vectors, 961 RTMState rtm_state) { 962 VM_ENTRY_MARK; 963 nmethod* nm = NULL; 964 { 965 // To prevent compile queue updates. 966 MutexLocker locker(MethodCompileQueue_lock, THREAD); 967 968 // Prevent SystemDictionary::add_to_hierarchy from running 969 // and invalidating our dependencies until we install this method. 970 // No safepoints are allowed. Otherwise, class redefinition can occur in between. 971 MutexLocker ml(Compile_lock); 972 NoSafepointVerifier nsv; 973 974 // Change in Jvmti state may invalidate compilation. 975 if (!failing() && jvmti_state_changed()) { 976 record_failure("Jvmti state change invalidated dependencies"); 977 } 978 979 // Change in DTrace flags may invalidate compilation. 980 if (!failing() && 981 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || 982 (!dtrace_method_probes() && DTraceMethodProbes) || 983 (!dtrace_alloc_probes() && DTraceAllocProbes) )) { 984 record_failure("DTrace flags change invalidated dependencies"); 985 } 986 987 if (!failing()) { 988 if (log() != NULL) { 989 // Log the dependencies which this compilation declares. 990 dependencies()->log_all_dependencies(); 991 } 992 993 // Encode the dependencies now, so we can check them right away. 994 dependencies()->encode_content_bytes(); 995 996 // Check for {class loads, evolution, breakpoints, ...} during compilation 997 validate_compile_task_dependencies(target); 998 } 999 1000 methodHandle method(THREAD, target->get_Method()); 1001 1002 #if INCLUDE_RTM_OPT 1003 if (!failing() && (rtm_state != NoRTM) && 1004 (method()->method_data() != NULL) && 1005 (method()->method_data()->rtm_state() != rtm_state)) { 1006 // Preemptive decompile if rtm state was changed. 1007 record_failure("RTM state change invalidated rtm code"); 1008 } 1009 #endif 1010 1011 if (failing()) { 1012 // While not a true deoptimization, it is a preemptive decompile. 1013 MethodData* mdo = method()->method_data(); 1014 if (mdo != NULL && _inc_decompile_count_on_failure) { 1015 mdo->inc_decompile_count(); 1016 } 1017 1018 // All buffers in the CodeBuffer are allocated in the CodeCache. 1019 // If the code buffer is created on each compile attempt 1020 // as in C2, then it must be freed. 1021 code_buffer->free_blob(); 1022 return; 1023 } 1024 1025 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); 1026 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); 1027 1028 nm = nmethod::new_nmethod(method, 1029 compile_id(), 1030 entry_bci, 1031 offsets, 1032 orig_pc_offset, 1033 debug_info(), dependencies(), code_buffer, 1034 frame_words, oop_map_set, 1035 handler_table, inc_table, 1036 compiler, task()->comp_level()); 1037 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 CompiledMethod* 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_used(); 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 task()->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 task()->comp_level(), 1084 method_name, 1085 entry_bci); 1086 } 1087 method->method_holder()->add_osr_nmethod(nm); 1088 } 1089 nm->make_in_use(); 1090 } 1091 } // safepoints are allowed again 1092 1093 if (nm != NULL) { 1094 // JVMTI -- compiled method notification (must be done outside lock) 1095 nm->post_compiled_method_load_event(); 1096 } else { 1097 // The CodeCache is full. 1098 record_failure("code cache is full"); 1099 } 1100 } 1101 1102 1103 // ------------------------------------------------------------------ 1104 // ciEnv::find_system_klass 1105 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { 1106 VM_ENTRY_MARK; 1107 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false); 1108 } 1109 1110 // ------------------------------------------------------------------ 1111 // ciEnv::comp_level 1112 int ciEnv::comp_level() { 1113 if (task() == NULL) return CompLevel_highest_tier; 1114 return task()->comp_level(); 1115 } 1116 1117 // ------------------------------------------------------------------ 1118 // ciEnv::compile_id 1119 uint ciEnv::compile_id() { 1120 if (task() == NULL) return 0; 1121 return task()->compile_id(); 1122 } 1123 1124 // ------------------------------------------------------------------ 1125 // ciEnv::notice_inlined_method() 1126 void ciEnv::notice_inlined_method(ciMethod* method) { 1127 _num_inlined_bytecodes += method->code_size_for_inlining(); 1128 } 1129 1130 // ------------------------------------------------------------------ 1131 // ciEnv::num_inlined_bytecodes() 1132 int ciEnv::num_inlined_bytecodes() const { 1133 return _num_inlined_bytecodes; 1134 } 1135 1136 // ------------------------------------------------------------------ 1137 // ciEnv::record_failure() 1138 void ciEnv::record_failure(const char* reason) { 1139 if (_failure_reason == NULL) { 1140 // Record the first failure reason. 1141 _failure_reason = reason; 1142 } 1143 } 1144 1145 void ciEnv::report_failure(const char* reason) { 1146 // Create and fire JFR event 1147 EventCompilationFailure event; 1148 if (event.should_commit()) { 1149 event.set_compileId(compile_id()); 1150 event.set_failureMessage(reason); 1151 event.commit(); 1152 } 1153 } 1154 1155 // ------------------------------------------------------------------ 1156 // ciEnv::record_method_not_compilable() 1157 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) { 1158 int new_compilable = 1159 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ; 1160 1161 // Only note transitions to a worse state 1162 if (new_compilable > _compilable) { 1163 if (log() != NULL) { 1164 if (all_tiers) { 1165 log()->elem("method_not_compilable"); 1166 } else { 1167 log()->elem("method_not_compilable_at_tier level='%d'", 1168 current()->task()->comp_level()); 1169 } 1170 } 1171 _compilable = new_compilable; 1172 1173 // Reset failure reason; this one is more important. 1174 _failure_reason = NULL; 1175 record_failure(reason); 1176 } 1177 } 1178 1179 // ------------------------------------------------------------------ 1180 // ciEnv::record_out_of_memory_failure() 1181 void ciEnv::record_out_of_memory_failure() { 1182 // If memory is low, we stop compiling methods. 1183 record_method_not_compilable("out of memory"); 1184 } 1185 1186 ciInstance* ciEnv::unloaded_ciinstance() { 1187 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();) 1188 } 1189 1190 // ------------------------------------------------------------------ 1191 // ciEnv::dump_replay_data* 1192 1193 // Don't change thread state and acquire any locks. 1194 // Safe to call from VM error reporter. 1195 1196 void ciEnv::dump_compile_data(outputStream* out) { 1197 CompileTask* task = this->task(); 1198 if (task) { 1199 Method* method = task->method(); 1200 int entry_bci = task->osr_bci(); 1201 int comp_level = task->comp_level(); 1202 out->print("compile %s %s %s %d %d", 1203 method->klass_name()->as_quoted_ascii(), 1204 method->name()->as_quoted_ascii(), 1205 method->signature()->as_quoted_ascii(), 1206 entry_bci, comp_level); 1207 if (compiler_data() != NULL) { 1208 if (is_c2_compile(comp_level)) { 1209 #ifdef COMPILER2 1210 // Dump C2 inlining data. 1211 ((Compile*)compiler_data())->dump_inline_data(out); 1212 #endif 1213 } else if (is_c1_compile(comp_level)) { 1214 #ifdef COMPILER1 1215 // Dump C1 inlining data. 1216 ((Compilation*)compiler_data())->dump_inline_data(out); 1217 #endif 1218 } 1219 } 1220 out->cr(); 1221 } 1222 } 1223 1224 void ciEnv::dump_replay_data_unsafe(outputStream* out) { 1225 ResourceMark rm; 1226 #if INCLUDE_JVMTI 1227 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables); 1228 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint); 1229 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions); 1230 #endif // INCLUDE_JVMTI 1231 1232 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata(); 1233 out->print_cr("# %d ciObject found", objects->length()); 1234 for (int i = 0; i < objects->length(); i++) { 1235 objects->at(i)->dump_replay_data(out); 1236 } 1237 dump_compile_data(out); 1238 out->flush(); 1239 } 1240 1241 void ciEnv::dump_replay_data(outputStream* out) { 1242 GUARDED_VM_ENTRY( 1243 MutexLocker ml(Compile_lock); 1244 dump_replay_data_unsafe(out); 1245 ) 1246 } 1247 1248 void ciEnv::dump_replay_data(int compile_id) { 1249 static char buffer[O_BUFLEN]; 1250 int ret = jio_snprintf(buffer, O_BUFLEN, "replay_pid%p_compid%d.log", os::current_process_id(), compile_id); 1251 if (ret > 0) { 1252 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1253 if (fd != -1) { 1254 FILE* replay_data_file = os::open(fd, "w"); 1255 if (replay_data_file != NULL) { 1256 fileStream replay_data_stream(replay_data_file, /*need_close=*/true); 1257 dump_replay_data(&replay_data_stream); 1258 tty->print_cr("# Compiler replay data is saved as: %s", buffer); 1259 } else { 1260 tty->print_cr("# Can't open file to dump replay data."); 1261 } 1262 } 1263 } 1264 } 1265 1266 void ciEnv::dump_inline_data(int compile_id) { 1267 static char buffer[O_BUFLEN]; 1268 int ret = jio_snprintf(buffer, O_BUFLEN, "inline_pid%p_compid%d.log", os::current_process_id(), compile_id); 1269 if (ret > 0) { 1270 int fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666); 1271 if (fd != -1) { 1272 FILE* inline_data_file = os::open(fd, "w"); 1273 if (inline_data_file != NULL) { 1274 fileStream replay_data_stream(inline_data_file, /*need_close=*/true); 1275 GUARDED_VM_ENTRY( 1276 MutexLocker ml(Compile_lock); 1277 dump_compile_data(&replay_data_stream); 1278 ) 1279 replay_data_stream.flush(); 1280 tty->print("# Compiler inline data is saved as: "); 1281 tty->print_cr("%s", buffer); 1282 } else { 1283 tty->print_cr("# Can't open file to dump inline data."); 1284 } 1285 } 1286 } 1287 }