1 /* 2 * Copyright (c) 2013, 2017, 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/ciMethodData.hpp" 28 #include "ci/ciReplay.hpp" 29 #include "ci/ciSymbol.hpp" 30 #include "ci/ciKlass.hpp" 31 #include "ci/ciUtilities.hpp" 32 #include "compiler/compileBroker.hpp" 33 #include "memory/allocation.inline.hpp" 34 #include "memory/oopFactory.hpp" 35 #include "memory/resourceArea.hpp" 36 #include "oops/oop.inline.hpp" 37 #include "oops/valueKlass.hpp" 38 #include "utilities/copy.hpp" 39 #include "utilities/macros.hpp" 40 41 #ifndef PRODUCT 42 43 // ciReplay 44 45 typedef struct _ciMethodDataRecord { 46 const char* _klass_name; 47 const char* _method_name; 48 const char* _signature; 49 50 int _state; 51 int _current_mileage; 52 53 intptr_t* _data; 54 char* _orig_data; 55 Klass** _classes; 56 Method** _methods; 57 int* _classes_offsets; 58 int* _methods_offsets; 59 int _data_length; 60 int _orig_data_length; 61 int _classes_length; 62 int _methods_length; 63 } ciMethodDataRecord; 64 65 typedef struct _ciMethodRecord { 66 const char* _klass_name; 67 const char* _method_name; 68 const char* _signature; 69 70 int _instructions_size; 71 int _interpreter_invocation_count; 72 int _interpreter_throwout_count; 73 int _invocation_counter; 74 int _backedge_counter; 75 } ciMethodRecord; 76 77 typedef struct _ciInlineRecord { 78 const char* _klass_name; 79 const char* _method_name; 80 const char* _signature; 81 82 int _inline_depth; 83 int _inline_bci; 84 } ciInlineRecord; 85 86 class CompileReplay; 87 static CompileReplay* replay_state; 88 89 class CompileReplay : public StackObj { 90 private: 91 FILE* _stream; 92 Thread* _thread; 93 Handle _protection_domain; 94 Handle _loader; 95 96 GrowableArray<ciMethodRecord*> _ci_method_records; 97 GrowableArray<ciMethodDataRecord*> _ci_method_data_records; 98 99 // Use pointer because we may need to return inline records 100 // without destroying them. 101 GrowableArray<ciInlineRecord*>* _ci_inline_records; 102 103 const char* _error_message; 104 105 char* _bufptr; 106 char* _buffer; 107 int _buffer_length; 108 int _buffer_pos; 109 110 // "compile" data 111 ciKlass* _iklass; 112 Method* _imethod; 113 int _entry_bci; 114 int _comp_level; 115 116 public: 117 CompileReplay(const char* filename, TRAPS) { 118 _thread = THREAD; 119 _loader = Handle(_thread, SystemDictionary::java_system_loader()); 120 _protection_domain = Handle(); 121 122 _stream = fopen(filename, "rt"); 123 if (_stream == NULL) { 124 fprintf(stderr, "ERROR: Can't open replay file %s\n", filename); 125 } 126 127 _ci_inline_records = NULL; 128 _error_message = NULL; 129 130 _buffer_length = 32; 131 _buffer = NEW_RESOURCE_ARRAY(char, _buffer_length); 132 _bufptr = _buffer; 133 _buffer_pos = 0; 134 135 _imethod = NULL; 136 _iklass = NULL; 137 _entry_bci = 0; 138 _comp_level = 0; 139 140 test(); 141 } 142 143 ~CompileReplay() { 144 if (_stream != NULL) fclose(_stream); 145 } 146 147 void test() { 148 strcpy(_buffer, "1 2 foo 4 bar 0x9 \"this is it\""); 149 _bufptr = _buffer; 150 assert(parse_int("test") == 1, "what"); 151 assert(parse_int("test") == 2, "what"); 152 assert(strcmp(parse_string(), "foo") == 0, "what"); 153 assert(parse_int("test") == 4, "what"); 154 assert(strcmp(parse_string(), "bar") == 0, "what"); 155 assert(parse_intptr_t("test") == 9, "what"); 156 assert(strcmp(parse_quoted_string(), "this is it") == 0, "what"); 157 } 158 159 bool had_error() { 160 return _error_message != NULL || _thread->has_pending_exception(); 161 } 162 163 bool can_replay() { 164 return !(_stream == NULL || had_error()); 165 } 166 167 void report_error(const char* msg) { 168 _error_message = msg; 169 // Restore the _buffer contents for error reporting 170 for (int i = 0; i < _buffer_pos; i++) { 171 if (_buffer[i] == '\0') _buffer[i] = ' '; 172 } 173 } 174 175 int parse_int(const char* label) { 176 if (had_error()) { 177 return 0; 178 } 179 180 int v = 0; 181 int read; 182 if (sscanf(_bufptr, "%i%n", &v, &read) != 1) { 183 report_error(label); 184 } else { 185 _bufptr += read; 186 } 187 return v; 188 } 189 190 intptr_t parse_intptr_t(const char* label) { 191 if (had_error()) { 192 return 0; 193 } 194 195 intptr_t v = 0; 196 int read; 197 if (sscanf(_bufptr, INTPTR_FORMAT "%n", &v, &read) != 1) { 198 report_error(label); 199 } else { 200 _bufptr += read; 201 } 202 return v; 203 } 204 205 void skip_ws() { 206 // Skip any leading whitespace 207 while (*_bufptr == ' ' || *_bufptr == '\t') { 208 _bufptr++; 209 } 210 } 211 212 213 char* scan_and_terminate(char delim) { 214 char* str = _bufptr; 215 while (*_bufptr != delim && *_bufptr != '\0') { 216 _bufptr++; 217 } 218 if (*_bufptr != '\0') { 219 *_bufptr++ = '\0'; 220 } 221 if (_bufptr == str) { 222 // nothing here 223 return NULL; 224 } 225 return str; 226 } 227 228 char* parse_string() { 229 if (had_error()) return NULL; 230 231 skip_ws(); 232 return scan_and_terminate(' '); 233 } 234 235 char* parse_quoted_string() { 236 if (had_error()) return NULL; 237 238 skip_ws(); 239 240 if (*_bufptr == '"') { 241 _bufptr++; 242 return scan_and_terminate('"'); 243 } else { 244 return scan_and_terminate(' '); 245 } 246 } 247 248 const char* parse_escaped_string() { 249 char* result = parse_quoted_string(); 250 if (result != NULL) { 251 unescape_string(result); 252 } 253 return result; 254 } 255 256 // Look for the tag 'tag' followed by an 257 bool parse_tag_and_count(const char* tag, int& length) { 258 const char* t = parse_string(); 259 if (t == NULL) { 260 return false; 261 } 262 263 if (strcmp(tag, t) != 0) { 264 report_error(tag); 265 return false; 266 } 267 length = parse_int("parse_tag_and_count"); 268 return !had_error(); 269 } 270 271 // Parse a sequence of raw data encoded as bytes and return the 272 // resulting data. 273 char* parse_data(const char* tag, int& length) { 274 if (!parse_tag_and_count(tag, length)) { 275 return NULL; 276 } 277 278 char * result = NEW_RESOURCE_ARRAY(char, length); 279 for (int i = 0; i < length; i++) { 280 int val = parse_int("data"); 281 result[i] = val; 282 } 283 return result; 284 } 285 286 // Parse a standard chunk of data emitted as: 287 // 'tag' <length> # # ... 288 // Where each # is an intptr_t item 289 intptr_t* parse_intptr_data(const char* tag, int& length) { 290 if (!parse_tag_and_count(tag, length)) { 291 return NULL; 292 } 293 294 intptr_t* result = NEW_RESOURCE_ARRAY(intptr_t, length); 295 for (int i = 0; i < length; i++) { 296 skip_ws(); 297 intptr_t val = parse_intptr_t("data"); 298 result[i] = val; 299 } 300 return result; 301 } 302 303 // Parse a possibly quoted version of a symbol into a symbolOop 304 Symbol* parse_symbol(TRAPS) { 305 const char* str = parse_escaped_string(); 306 if (str != NULL) { 307 Symbol* sym = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL); 308 return sym; 309 } 310 return NULL; 311 } 312 313 // Parse a valid klass name and look it up 314 Klass* parse_klass(TRAPS) { 315 const char* str = parse_escaped_string(); 316 Symbol* klass_name = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL); 317 if (klass_name != NULL) { 318 Klass* k = NULL; 319 if (_iklass != NULL) { 320 k = (Klass*)_iklass->find_klass(ciSymbol::make(klass_name->as_C_string()))->constant_encoding(); 321 } else { 322 k = SystemDictionary::resolve_or_fail(klass_name, _loader, _protection_domain, true, THREAD); 323 } 324 if (HAS_PENDING_EXCEPTION) { 325 oop throwable = PENDING_EXCEPTION; 326 java_lang_Throwable::print(throwable, tty); 327 tty->cr(); 328 report_error(str); 329 if (ReplayIgnoreInitErrors) { 330 CLEAR_PENDING_EXCEPTION; 331 _error_message = NULL; 332 } 333 return NULL; 334 } 335 return k; 336 } 337 return NULL; 338 } 339 340 // Lookup a klass 341 Klass* resolve_klass(const char* klass, TRAPS) { 342 Symbol* klass_name = SymbolTable::lookup(klass, (int)strlen(klass), CHECK_NULL); 343 return SystemDictionary::resolve_or_fail(klass_name, _loader, _protection_domain, true, THREAD); 344 } 345 346 // Parse the standard tuple of <klass> <name> <signature> 347 Method* parse_method(TRAPS) { 348 InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK_NULL); 349 if (k == NULL) { 350 report_error("Can't find holder klass"); 351 return NULL; 352 } 353 Symbol* method_name = parse_symbol(CHECK_NULL); 354 Symbol* method_signature = parse_symbol(CHECK_NULL); 355 Method* m = k->find_method(method_name, method_signature); 356 if (m == NULL) { 357 report_error("Can't find method"); 358 } 359 return m; 360 } 361 362 int get_line(int c) { 363 while(c != EOF) { 364 if (_buffer_pos + 1 >= _buffer_length) { 365 int new_length = _buffer_length * 2; 366 // Next call will throw error in case of OOM. 367 _buffer = REALLOC_RESOURCE_ARRAY(char, _buffer, _buffer_length, new_length); 368 _buffer_length = new_length; 369 } 370 if (c == '\n') { 371 c = getc(_stream); // get next char 372 break; 373 } else if (c == '\r') { 374 // skip LF 375 } else { 376 _buffer[_buffer_pos++] = c; 377 } 378 c = getc(_stream); 379 } 380 // null terminate it, reset the pointer 381 _buffer[_buffer_pos] = '\0'; // NL or EOF 382 _buffer_pos = 0; 383 _bufptr = _buffer; 384 return c; 385 } 386 387 // Process each line of the replay file executing each command until 388 // the file ends. 389 void process(TRAPS) { 390 int line_no = 1; 391 int c = getc(_stream); 392 while(c != EOF) { 393 c = get_line(c); 394 process_command(THREAD); 395 if (had_error()) { 396 tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message); 397 if (ReplayIgnoreInitErrors) { 398 CLEAR_PENDING_EXCEPTION; 399 _error_message = NULL; 400 } else { 401 return; 402 } 403 } 404 line_no++; 405 } 406 } 407 408 void process_command(TRAPS) { 409 char* cmd = parse_string(); 410 if (cmd == NULL) { 411 return; 412 } 413 if (strcmp("#", cmd) == 0) { 414 // ignore 415 } else if (strcmp("compile", cmd) == 0) { 416 process_compile(CHECK); 417 } else if (strcmp("ciMethod", cmd) == 0) { 418 process_ciMethod(CHECK); 419 } else if (strcmp("ciMethodData", cmd) == 0) { 420 process_ciMethodData(CHECK); 421 } else if (strcmp("staticfield", cmd) == 0) { 422 process_staticfield(CHECK); 423 } else if (strcmp("ciInstanceKlass", cmd) == 0) { 424 process_ciInstanceKlass(CHECK); 425 } else if (strcmp("instanceKlass", cmd) == 0) { 426 process_instanceKlass(CHECK); 427 #if INCLUDE_JVMTI 428 } else if (strcmp("JvmtiExport", cmd) == 0) { 429 process_JvmtiExport(CHECK); 430 #endif // INCLUDE_JVMTI 431 } else { 432 report_error("unknown command"); 433 } 434 } 435 436 // validation of comp_level 437 bool is_valid_comp_level(int comp_level) { 438 const int msg_len = 256; 439 char* msg = NULL; 440 if (!is_compile(comp_level)) { 441 msg = NEW_RESOURCE_ARRAY(char, msg_len); 442 jio_snprintf(msg, msg_len, "%d isn't compilation level", comp_level); 443 } else if (!TieredCompilation && (comp_level != CompLevel_highest_tier)) { 444 msg = NEW_RESOURCE_ARRAY(char, msg_len); 445 switch (comp_level) { 446 case CompLevel_simple: 447 jio_snprintf(msg, msg_len, "compilation level %d requires Client VM or TieredCompilation", comp_level); 448 break; 449 case CompLevel_full_optimization: 450 jio_snprintf(msg, msg_len, "compilation level %d requires Server VM", comp_level); 451 break; 452 default: 453 jio_snprintf(msg, msg_len, "compilation level %d requires TieredCompilation", comp_level); 454 } 455 } 456 if (msg != NULL) { 457 report_error(msg); 458 return false; 459 } 460 return true; 461 } 462 463 // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> <depth> <bci> <klass> <name> <signature> ... 464 void* process_inline(ciMethod* imethod, Method* m, int entry_bci, int comp_level, TRAPS) { 465 _imethod = m; 466 _iklass = imethod->holder(); 467 _entry_bci = entry_bci; 468 _comp_level = comp_level; 469 int line_no = 1; 470 int c = getc(_stream); 471 while(c != EOF) { 472 c = get_line(c); 473 // Expecting only lines with "compile" command in inline replay file. 474 char* cmd = parse_string(); 475 if (cmd == NULL || strcmp("compile", cmd) != 0) { 476 return NULL; 477 } 478 process_compile(CHECK_NULL); 479 if (had_error()) { 480 tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message); 481 tty->print_cr("%s", _buffer); 482 return NULL; 483 } 484 if (_ci_inline_records != NULL && _ci_inline_records->length() > 0) { 485 // Found inlining record for the requested method. 486 return _ci_inline_records; 487 } 488 line_no++; 489 } 490 return NULL; 491 } 492 493 // compile <klass> <name> <signature> <entry_bci> <comp_level> inline <count> <depth> <bci> <klass> <name> <signature> ... 494 void process_compile(TRAPS) { 495 Method* method = parse_method(CHECK); 496 if (had_error()) return; 497 int entry_bci = parse_int("entry_bci"); 498 const char* comp_level_label = "comp_level"; 499 int comp_level = parse_int(comp_level_label); 500 // old version w/o comp_level 501 if (had_error() && (error_message() == comp_level_label)) { 502 // use highest available tier 503 comp_level = TieredCompilation ? TieredStopAtLevel : CompLevel_highest_tier; 504 } 505 if (!is_valid_comp_level(comp_level)) { 506 return; 507 } 508 if (_imethod != NULL) { 509 // Replay Inlining 510 if (entry_bci != _entry_bci || comp_level != _comp_level) { 511 return; 512 } 513 const char* iklass_name = _imethod->method_holder()->name()->as_utf8(); 514 const char* imethod_name = _imethod->name()->as_utf8(); 515 const char* isignature = _imethod->signature()->as_utf8(); 516 const char* klass_name = method->method_holder()->name()->as_utf8(); 517 const char* method_name = method->name()->as_utf8(); 518 const char* signature = method->signature()->as_utf8(); 519 if (strcmp(iklass_name, klass_name) != 0 || 520 strcmp(imethod_name, method_name) != 0 || 521 strcmp(isignature, signature) != 0) { 522 return; 523 } 524 } 525 int inline_count = 0; 526 if (parse_tag_and_count("inline", inline_count)) { 527 // Record inlining data 528 _ci_inline_records = new GrowableArray<ciInlineRecord*>(); 529 for (int i = 0; i < inline_count; i++) { 530 int depth = parse_int("inline_depth"); 531 int bci = parse_int("inline_bci"); 532 if (had_error()) { 533 break; 534 } 535 Method* inl_method = parse_method(CHECK); 536 if (had_error()) { 537 break; 538 } 539 new_ciInlineRecord(inl_method, bci, depth); 540 } 541 } 542 if (_imethod != NULL) { 543 return; // Replay Inlining 544 } 545 InstanceKlass* ik = method->method_holder(); 546 ik->initialize(THREAD); 547 if (HAS_PENDING_EXCEPTION) { 548 oop throwable = PENDING_EXCEPTION; 549 java_lang_Throwable::print(throwable, tty); 550 tty->cr(); 551 if (ReplayIgnoreInitErrors) { 552 CLEAR_PENDING_EXCEPTION; 553 ik->set_init_state(InstanceKlass::fully_initialized); 554 } else { 555 return; 556 } 557 } 558 // Make sure the existence of a prior compile doesn't stop this one 559 CompiledMethod* nm = (entry_bci != InvocationEntryBci) ? method->lookup_osr_nmethod_for(entry_bci, comp_level, true) : method->code(); 560 if (nm != NULL) { 561 nm->make_not_entrant(); 562 } 563 replay_state = this; 564 CompileBroker::compile_method(method, entry_bci, comp_level, 565 methodHandle(), 0, CompileTask::Reason_Replay, THREAD); 566 replay_state = NULL; 567 reset(); 568 } 569 570 // ciMethod <klass> <name> <signature> <invocation_counter> <backedge_counter> <interpreter_invocation_count> <interpreter_throwout_count> <instructions_size> 571 // 572 // 573 void process_ciMethod(TRAPS) { 574 Method* method = parse_method(CHECK); 575 if (had_error()) return; 576 ciMethodRecord* rec = new_ciMethod(method); 577 rec->_invocation_counter = parse_int("invocation_counter"); 578 rec->_backedge_counter = parse_int("backedge_counter"); 579 rec->_interpreter_invocation_count = parse_int("interpreter_invocation_count"); 580 rec->_interpreter_throwout_count = parse_int("interpreter_throwout_count"); 581 rec->_instructions_size = parse_int("instructions_size"); 582 } 583 584 // ciMethodData <klass> <name> <signature> <state> <current mileage> orig <length> # # ... data <length> # # ... oops <length> # ... methods <length> 585 void process_ciMethodData(TRAPS) { 586 Method* method = parse_method(CHECK); 587 if (had_error()) return; 588 /* just copied from Method, to build interpret data*/ 589 590 // To be properly initialized, some profiling in the MDO needs the 591 // method to be rewritten (number of arguments at a call for 592 // instance) 593 method->method_holder()->link_class(CHECK); 594 // methodOopDesc::build_interpreter_method_data(method, CHECK); 595 { 596 // Grab a lock here to prevent multiple 597 // MethodData*s from being created. 598 MutexLocker ml(MethodData_lock, THREAD); 599 if (method->method_data() == NULL) { 600 ClassLoaderData* loader_data = method->method_holder()->class_loader_data(); 601 MethodData* method_data = MethodData::allocate(loader_data, method, CHECK); 602 method->set_method_data(method_data); 603 } 604 } 605 606 // collect and record all the needed information for later 607 ciMethodDataRecord* rec = new_ciMethodData(method); 608 rec->_state = parse_int("state"); 609 rec->_current_mileage = parse_int("current_mileage"); 610 611 rec->_orig_data = parse_data("orig", rec->_orig_data_length); 612 if (rec->_orig_data == NULL) { 613 return; 614 } 615 rec->_data = parse_intptr_data("data", rec->_data_length); 616 if (rec->_data == NULL) { 617 return; 618 } 619 if (!parse_tag_and_count("oops", rec->_classes_length)) { 620 return; 621 } 622 rec->_classes = NEW_RESOURCE_ARRAY(Klass*, rec->_classes_length); 623 rec->_classes_offsets = NEW_RESOURCE_ARRAY(int, rec->_classes_length); 624 for (int i = 0; i < rec->_classes_length; i++) { 625 int offset = parse_int("offset"); 626 if (had_error()) { 627 return; 628 } 629 Klass* k = parse_klass(CHECK); 630 rec->_classes_offsets[i] = offset; 631 rec->_classes[i] = k; 632 } 633 634 if (!parse_tag_and_count("methods", rec->_methods_length)) { 635 return; 636 } 637 rec->_methods = NEW_RESOURCE_ARRAY(Method*, rec->_methods_length); 638 rec->_methods_offsets = NEW_RESOURCE_ARRAY(int, rec->_methods_length); 639 for (int i = 0; i < rec->_methods_length; i++) { 640 int offset = parse_int("offset"); 641 if (had_error()) { 642 return; 643 } 644 Method* m = parse_method(CHECK); 645 rec->_methods_offsets[i] = offset; 646 rec->_methods[i] = m; 647 } 648 } 649 650 // instanceKlass <name> 651 // 652 // Loads and initializes the klass 'name'. This can be used to 653 // create particular class loading environments 654 void process_instanceKlass(TRAPS) { 655 // just load the referenced class 656 Klass* k = parse_klass(CHECK); 657 } 658 659 // ciInstanceKlass <name> <is_linked> <is_initialized> <length> tag # # # ... 660 // 661 // Load the klass 'name' and link or initialize it. Verify that the 662 // constant pool is the same length as 'length' and make sure the 663 // constant pool tags are in the same state. 664 void process_ciInstanceKlass(TRAPS) { 665 InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK); 666 if (k == NULL) { 667 return; 668 } 669 int is_linked = parse_int("is_linked"); 670 int is_initialized = parse_int("is_initialized"); 671 int length = parse_int("length"); 672 if (is_initialized) { 673 k->initialize(THREAD); 674 if (HAS_PENDING_EXCEPTION) { 675 oop throwable = PENDING_EXCEPTION; 676 java_lang_Throwable::print(throwable, tty); 677 tty->cr(); 678 if (ReplayIgnoreInitErrors) { 679 CLEAR_PENDING_EXCEPTION; 680 k->set_init_state(InstanceKlass::fully_initialized); 681 } else { 682 return; 683 } 684 } 685 } else if (is_linked) { 686 k->link_class(CHECK); 687 } 688 ConstantPool* cp = k->constants(); 689 if (length != cp->length()) { 690 report_error("constant pool length mismatch: wrong class files?"); 691 return; 692 } 693 694 int parsed_two_word = 0; 695 for (int i = 1; i < length; i++) { 696 int tag = parse_int("tag"); 697 if (had_error()) { 698 return; 699 } 700 switch (cp->tag_at(i).value()) { 701 case JVM_CONSTANT_UnresolvedClass: { 702 if (tag == JVM_CONSTANT_Class) { 703 tty->print_cr("Resolving klass %s at %d", cp->klass_name_at(i)->as_utf8(), i); 704 Klass* k = cp->klass_at(i, CHECK); 705 } 706 break; 707 } 708 709 case JVM_CONSTANT_UnresolvedValue: { 710 if (tag == JVM_CONSTANT_Value) { 711 tty->print_cr("Resolving value type %s at %d", cp->klass_name_at(i)->as_utf8(), i); 712 Klass* k = cp->klass_at(i, CHECK); 713 } 714 break; 715 } 716 717 case JVM_CONSTANT_Long: 718 case JVM_CONSTANT_Double: 719 parsed_two_word = i + 1; 720 721 case JVM_CONSTANT_ClassIndex: 722 case JVM_CONSTANT_ValueIndex: 723 case JVM_CONSTANT_StringIndex: 724 case JVM_CONSTANT_String: 725 case JVM_CONSTANT_UnresolvedClassInError: 726 case JVM_CONSTANT_UnresolvedValueInError: 727 case JVM_CONSTANT_Fieldref: 728 case JVM_CONSTANT_Methodref: 729 case JVM_CONSTANT_InterfaceMethodref: 730 case JVM_CONSTANT_NameAndType: 731 case JVM_CONSTANT_Utf8: 732 case JVM_CONSTANT_Integer: 733 case JVM_CONSTANT_Float: 734 case JVM_CONSTANT_MethodHandle: 735 case JVM_CONSTANT_MethodType: 736 case JVM_CONSTANT_Dynamic: 737 case JVM_CONSTANT_InvokeDynamic: 738 if (tag != cp->tag_at(i).value()) { 739 report_error("tag mismatch: wrong class files?"); 740 return; 741 } 742 break; 743 744 case JVM_CONSTANT_Class: 745 if (tag == JVM_CONSTANT_Class) { 746 } else if (tag == JVM_CONSTANT_UnresolvedClass) { 747 tty->print_cr("Warning: entry was unresolved in the replay data"); 748 } else { 749 report_error("Unexpected tag"); 750 return; 751 } 752 break; 753 754 case JVM_CONSTANT_Value: 755 if (tag == JVM_CONSTANT_Value) { 756 } else if (tag == JVM_CONSTANT_UnresolvedValue) { 757 tty->print_cr("Warning: entry was unresolved in the replay data"); 758 } else { 759 report_error("Unexpected tag"); 760 return; 761 } 762 break; 763 764 case 0: 765 if (parsed_two_word == i) continue; 766 767 default: 768 fatal("Unexpected tag: %d", cp->tag_at(i).value()); 769 break; 770 } 771 772 } 773 } 774 775 class ValueTypeFieldInitializer : public FieldClosure { 776 oop _vt; 777 CompileReplay* _replay; 778 public: 779 ValueTypeFieldInitializer(oop vt, CompileReplay* replay) 780 : _vt(vt), _replay(replay) {} 781 782 void do_field(fieldDescriptor* fd) { 783 BasicType bt = fd->field_type(); 784 const char* string_value = bt != T_VALUETYPE ? _replay->parse_escaped_string() : NULL; 785 switch (bt) { 786 case T_BYTE: { 787 int value = atoi(string_value); 788 _vt->byte_field_put(fd->offset(), value); 789 break; 790 } 791 case T_BOOLEAN: { 792 int value = atoi(string_value); 793 _vt->bool_field_put(fd->offset(), value); 794 break; 795 } 796 case T_SHORT: { 797 int value = atoi(string_value); 798 _vt->short_field_put(fd->offset(), value); 799 break; 800 } 801 case T_CHAR: { 802 int value = atoi(string_value); 803 _vt->char_field_put(fd->offset(), value); 804 break; 805 } 806 case T_INT: { 807 int value = atoi(string_value); 808 _vt->int_field_put(fd->offset(), value); 809 break; 810 } 811 case T_LONG: { 812 jlong value; 813 if (sscanf(string_value, JLONG_FORMAT, &value) != 1) { 814 fprintf(stderr, "Error parsing long: %s\n", string_value); 815 break; 816 } 817 _vt->long_field_put(fd->offset(), value); 818 break; 819 } 820 case T_FLOAT: { 821 float value = atof(string_value); 822 _vt->float_field_put(fd->offset(), value); 823 break; 824 } 825 case T_DOUBLE: { 826 double value = atof(string_value); 827 _vt->double_field_put(fd->offset(), value); 828 break; 829 } 830 case T_ARRAY: 831 case T_OBJECT: { 832 Thread* THREAD = Thread::current(); 833 bool res = _replay->process_staticfield_reference(string_value, _vt, fd, THREAD); 834 assert(res, "should succeed for arrays & objects"); 835 break; 836 } 837 case T_VALUETYPE: { 838 Thread* THREAD = Thread::current(); 839 SignatureStream ss(fd->signature(), false); 840 InstanceKlass* holder = fd->field_holder(); 841 Klass* k = ss.as_klass(Handle(THREAD, holder->class_loader()), 842 Handle(THREAD, holder->protection_domain()), 843 SignatureStream::ReturnNull, THREAD); 844 assert(k != NULL && !HAS_PENDING_EXCEPTION, "can resolve klass?"); 845 ValueKlass* vk = ValueKlass::cast(k); 846 if (fd->is_flattened()) { 847 int field_offset = fd->offset() - vk->first_field_offset(); 848 oop obj = (oop)((address)_vt + field_offset); 849 ValueTypeFieldInitializer init_fields(obj, _replay); 850 vk->do_nonstatic_fields(&init_fields); 851 } else { 852 oop value = vk->allocate_instance(THREAD); 853 _vt->obj_field_put(fd->offset(), value); 854 } 855 break; 856 } 857 default: { 858 fatal("Unhandled type: %s", type2name(bt)); 859 } 860 } 861 } 862 }; 863 864 bool process_staticfield_reference(const char* field_signature, oop java_mirror, fieldDescriptor* fd, TRAPS) { 865 if (field_signature[0] == '[') { 866 int length = parse_int("array length"); 867 oop value = NULL; 868 869 if (field_signature[1] == '[') { 870 // multi dimensional array 871 Klass* k = resolve_klass(field_signature, CHECK_(true)); 872 ArrayKlass* kelem = (ArrayKlass *)k; 873 int rank = 0; 874 while (field_signature[rank] == '[') { 875 rank++; 876 } 877 jint* dims = NEW_RESOURCE_ARRAY(jint, rank); 878 dims[0] = length; 879 for (int i = 1; i < rank; i++) { 880 dims[i] = 1; // These aren't relevant to the compiler 881 } 882 value = kelem->multi_allocate(rank, dims, CHECK_(true)); 883 } else { 884 if (strcmp(field_signature, "[B") == 0) { 885 value = oopFactory::new_byteArray(length, CHECK_(true)); 886 } else if (strcmp(field_signature, "[Z") == 0) { 887 value = oopFactory::new_boolArray(length, CHECK_(true)); 888 } else if (strcmp(field_signature, "[C") == 0) { 889 value = oopFactory::new_charArray(length, CHECK_(true)); 890 } else if (strcmp(field_signature, "[S") == 0) { 891 value = oopFactory::new_shortArray(length, CHECK_(true)); 892 } else if (strcmp(field_signature, "[F") == 0) { 893 value = oopFactory::new_singleArray(length, CHECK_(true)); 894 } else if (strcmp(field_signature, "[D") == 0) { 895 value = oopFactory::new_doubleArray(length, CHECK_(true)); 896 } else if (strcmp(field_signature, "[I") == 0) { 897 value = oopFactory::new_intArray(length, CHECK_(true)); 898 } else if (strcmp(field_signature, "[J") == 0) { 899 value = oopFactory::new_longArray(length, CHECK_(true)); 900 } else if (field_signature[0] == '[' && field_signature[1] == 'L') { 901 Klass* kelem = resolve_klass(field_signature + 1, CHECK_(true)); 902 value = oopFactory::new_objArray(kelem, length, CHECK_(true)); 903 } else { 904 report_error("unhandled array staticfield"); 905 } 906 } 907 java_mirror->obj_field_put(fd->offset(), value); 908 return true; 909 } else if (strcmp(field_signature, "Ljava/lang/String;") == 0) { 910 const char* string_value = parse_escaped_string(); 911 Handle value = java_lang_String::create_from_str(string_value, CHECK_(true)); 912 java_mirror->obj_field_put(fd->offset(), value()); 913 return true; 914 } else if (field_signature[0] == 'L') { 915 Klass* k = resolve_klass(field_signature, CHECK_(true)); 916 oop value = InstanceKlass::cast(k)->allocate_instance(CHECK_(true)); 917 java_mirror->obj_field_put(fd->offset(), value); 918 return true; 919 } 920 return false; 921 } 922 923 // Initialize a class and fill in the value for a static field. 924 // This is useful when the compile was dependent on the value of 925 // static fields but it's impossible to properly rerun the static 926 // initializer. 927 void process_staticfield(TRAPS) { 928 InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK); 929 930 if (k == NULL || ReplaySuppressInitializers == 0 || 931 (ReplaySuppressInitializers == 2 && k->class_loader() == NULL)) { 932 return; 933 } 934 935 assert(k->is_initialized(), "must be"); 936 937 const char* field_name = parse_escaped_string(); 938 const char* field_signature = parse_string(); 939 fieldDescriptor fd; 940 Symbol* name = SymbolTable::lookup(field_name, (int)strlen(field_name), CHECK); 941 Symbol* sig = SymbolTable::lookup(field_signature, (int)strlen(field_signature), CHECK); 942 if (!k->find_local_field(name, sig, &fd) || 943 !fd.is_static() || 944 fd.has_initial_value()) { 945 report_error(field_name); 946 return; 947 } 948 949 oop java_mirror = k->java_mirror(); 950 if (strcmp(field_signature, "I") == 0) { 951 const char* string_value = parse_escaped_string(); 952 int value = atoi(string_value); 953 java_mirror->int_field_put(fd.offset(), value); 954 } else if (strcmp(field_signature, "B") == 0) { 955 const char* string_value = parse_escaped_string(); 956 int value = atoi(string_value); 957 java_mirror->byte_field_put(fd.offset(), value); 958 } else if (strcmp(field_signature, "C") == 0) { 959 const char* string_value = parse_escaped_string(); 960 int value = atoi(string_value); 961 java_mirror->char_field_put(fd.offset(), value); 962 } else if (strcmp(field_signature, "S") == 0) { 963 const char* string_value = parse_escaped_string(); 964 int value = atoi(string_value); 965 java_mirror->short_field_put(fd.offset(), value); 966 } else if (strcmp(field_signature, "Z") == 0) { 967 const char* string_value = parse_escaped_string(); 968 int value = atoi(string_value); 969 java_mirror->bool_field_put(fd.offset(), value); 970 } else if (strcmp(field_signature, "J") == 0) { 971 const char* string_value = parse_escaped_string(); 972 jlong value; 973 if (sscanf(string_value, JLONG_FORMAT, &value) != 1) { 974 fprintf(stderr, "Error parsing long: %s\n", string_value); 975 return; 976 } 977 java_mirror->long_field_put(fd.offset(), value); 978 } else if (strcmp(field_signature, "F") == 0) { 979 const char* string_value = parse_escaped_string(); 980 float value = atof(string_value); 981 java_mirror->float_field_put(fd.offset(), value); 982 } else if (strcmp(field_signature, "D") == 0) { 983 const char* string_value = parse_escaped_string(); 984 double value = atof(string_value); 985 java_mirror->double_field_put(fd.offset(), value); 986 } else if (field_signature[0] == 'Q') { 987 Klass* kelem = resolve_klass(field_signature, CHECK); 988 ValueKlass* vk = ValueKlass::cast(kelem); 989 oop value = vk->allocate_instance(CHECK); 990 ValueTypeFieldInitializer init_fields(value, this); 991 vk->do_nonstatic_fields(&init_fields); 992 java_mirror->obj_field_put(fd.offset(), value); 993 } else { 994 bool res = process_staticfield_reference(field_signature, java_mirror, &fd, CHECK); 995 if (!res) { 996 report_error("unhandled staticfield"); 997 } 998 } 999 } 1000 1001 #if INCLUDE_JVMTI 1002 void process_JvmtiExport(TRAPS) { 1003 const char* field = parse_string(); 1004 bool value = parse_int("JvmtiExport flag") != 0; 1005 if (strcmp(field, "can_access_local_variables") == 0) { 1006 JvmtiExport::set_can_access_local_variables(value); 1007 } else if (strcmp(field, "can_hotswap_or_post_breakpoint") == 0) { 1008 JvmtiExport::set_can_hotswap_or_post_breakpoint(value); 1009 } else if (strcmp(field, "can_post_on_exceptions") == 0) { 1010 JvmtiExport::set_can_post_on_exceptions(value); 1011 } else { 1012 report_error("Unrecognized JvmtiExport directive"); 1013 } 1014 } 1015 #endif // INCLUDE_JVMTI 1016 1017 // Create and initialize a record for a ciMethod 1018 ciMethodRecord* new_ciMethod(Method* method) { 1019 ciMethodRecord* rec = NEW_RESOURCE_OBJ(ciMethodRecord); 1020 rec->_klass_name = method->method_holder()->name()->as_utf8(); 1021 rec->_method_name = method->name()->as_utf8(); 1022 rec->_signature = method->signature()->as_utf8(); 1023 _ci_method_records.append(rec); 1024 return rec; 1025 } 1026 1027 // Lookup data for a ciMethod 1028 ciMethodRecord* find_ciMethodRecord(Method* method) { 1029 const char* klass_name = method->method_holder()->name()->as_utf8(); 1030 const char* method_name = method->name()->as_utf8(); 1031 const char* signature = method->signature()->as_utf8(); 1032 for (int i = 0; i < _ci_method_records.length(); i++) { 1033 ciMethodRecord* rec = _ci_method_records.at(i); 1034 if (strcmp(rec->_klass_name, klass_name) == 0 && 1035 strcmp(rec->_method_name, method_name) == 0 && 1036 strcmp(rec->_signature, signature) == 0) { 1037 return rec; 1038 } 1039 } 1040 return NULL; 1041 } 1042 1043 // Create and initialize a record for a ciMethodData 1044 ciMethodDataRecord* new_ciMethodData(Method* method) { 1045 ciMethodDataRecord* rec = NEW_RESOURCE_OBJ(ciMethodDataRecord); 1046 rec->_klass_name = method->method_holder()->name()->as_utf8(); 1047 rec->_method_name = method->name()->as_utf8(); 1048 rec->_signature = method->signature()->as_utf8(); 1049 _ci_method_data_records.append(rec); 1050 return rec; 1051 } 1052 1053 // Lookup data for a ciMethodData 1054 ciMethodDataRecord* find_ciMethodDataRecord(Method* method) { 1055 const char* klass_name = method->method_holder()->name()->as_utf8(); 1056 const char* method_name = method->name()->as_utf8(); 1057 const char* signature = method->signature()->as_utf8(); 1058 for (int i = 0; i < _ci_method_data_records.length(); i++) { 1059 ciMethodDataRecord* rec = _ci_method_data_records.at(i); 1060 if (strcmp(rec->_klass_name, klass_name) == 0 && 1061 strcmp(rec->_method_name, method_name) == 0 && 1062 strcmp(rec->_signature, signature) == 0) { 1063 return rec; 1064 } 1065 } 1066 return NULL; 1067 } 1068 1069 // Create and initialize a record for a ciInlineRecord 1070 ciInlineRecord* new_ciInlineRecord(Method* method, int bci, int depth) { 1071 ciInlineRecord* rec = NEW_RESOURCE_OBJ(ciInlineRecord); 1072 rec->_klass_name = method->method_holder()->name()->as_utf8(); 1073 rec->_method_name = method->name()->as_utf8(); 1074 rec->_signature = method->signature()->as_utf8(); 1075 rec->_inline_bci = bci; 1076 rec->_inline_depth = depth; 1077 _ci_inline_records->append(rec); 1078 return rec; 1079 } 1080 1081 // Lookup inlining data for a ciMethod 1082 ciInlineRecord* find_ciInlineRecord(Method* method, int bci, int depth) { 1083 if (_ci_inline_records != NULL) { 1084 return find_ciInlineRecord(_ci_inline_records, method, bci, depth); 1085 } 1086 return NULL; 1087 } 1088 1089 static ciInlineRecord* find_ciInlineRecord(GrowableArray<ciInlineRecord*>* records, 1090 Method* method, int bci, int depth) { 1091 if (records != NULL) { 1092 const char* klass_name = method->method_holder()->name()->as_utf8(); 1093 const char* method_name = method->name()->as_utf8(); 1094 const char* signature = method->signature()->as_utf8(); 1095 for (int i = 0; i < records->length(); i++) { 1096 ciInlineRecord* rec = records->at(i); 1097 if ((rec->_inline_bci == bci) && 1098 (rec->_inline_depth == depth) && 1099 (strcmp(rec->_klass_name, klass_name) == 0) && 1100 (strcmp(rec->_method_name, method_name) == 0) && 1101 (strcmp(rec->_signature, signature) == 0)) { 1102 return rec; 1103 } 1104 } 1105 } 1106 return NULL; 1107 } 1108 1109 const char* error_message() { 1110 return _error_message; 1111 } 1112 1113 void reset() { 1114 _error_message = NULL; 1115 _ci_method_records.clear(); 1116 _ci_method_data_records.clear(); 1117 } 1118 1119 // Take an ascii string contain \u#### escapes and convert it to utf8 1120 // in place. 1121 static void unescape_string(char* value) { 1122 char* from = value; 1123 char* to = value; 1124 while (*from != '\0') { 1125 if (*from != '\\') { 1126 *from++ = *to++; 1127 } else { 1128 switch (from[1]) { 1129 case 'u': { 1130 from += 2; 1131 jchar value=0; 1132 for (int i=0; i<4; i++) { 1133 char c = *from++; 1134 switch (c) { 1135 case '0': case '1': case '2': case '3': case '4': 1136 case '5': case '6': case '7': case '8': case '9': 1137 value = (value << 4) + c - '0'; 1138 break; 1139 case 'a': case 'b': case 'c': 1140 case 'd': case 'e': case 'f': 1141 value = (value << 4) + 10 + c - 'a'; 1142 break; 1143 case 'A': case 'B': case 'C': 1144 case 'D': case 'E': case 'F': 1145 value = (value << 4) + 10 + c - 'A'; 1146 break; 1147 default: 1148 ShouldNotReachHere(); 1149 } 1150 } 1151 UNICODE::convert_to_utf8(&value, 1, to); 1152 to++; 1153 break; 1154 } 1155 case 't': *to++ = '\t'; from += 2; break; 1156 case 'n': *to++ = '\n'; from += 2; break; 1157 case 'r': *to++ = '\r'; from += 2; break; 1158 case 'f': *to++ = '\f'; from += 2; break; 1159 default: 1160 ShouldNotReachHere(); 1161 } 1162 } 1163 } 1164 *from = *to; 1165 } 1166 }; 1167 1168 void ciReplay::replay(TRAPS) { 1169 int exit_code = replay_impl(THREAD); 1170 1171 Threads::destroy_vm(); 1172 1173 vm_exit(exit_code); 1174 } 1175 1176 void* ciReplay::load_inline_data(ciMethod* method, int entry_bci, int comp_level) { 1177 if (FLAG_IS_DEFAULT(InlineDataFile)) { 1178 tty->print_cr("ERROR: no inline replay data file specified (use -XX:InlineDataFile=inline_pid12345.txt)."); 1179 return NULL; 1180 } 1181 1182 VM_ENTRY_MARK; 1183 // Load and parse the replay data 1184 CompileReplay rp(InlineDataFile, THREAD); 1185 if (!rp.can_replay()) { 1186 tty->print_cr("ciReplay: !rp.can_replay()"); 1187 return NULL; 1188 } 1189 void* data = rp.process_inline(method, method->get_Method(), entry_bci, comp_level, THREAD); 1190 if (HAS_PENDING_EXCEPTION) { 1191 Handle throwable(THREAD, PENDING_EXCEPTION); 1192 CLEAR_PENDING_EXCEPTION; 1193 java_lang_Throwable::print_stack_trace(throwable, tty); 1194 tty->cr(); 1195 return NULL; 1196 } 1197 1198 if (rp.had_error()) { 1199 tty->print_cr("ciReplay: Failed on %s", rp.error_message()); 1200 return NULL; 1201 } 1202 return data; 1203 } 1204 1205 int ciReplay::replay_impl(TRAPS) { 1206 HandleMark hm; 1207 ResourceMark rm; 1208 1209 if (ReplaySuppressInitializers > 2) { 1210 // ReplaySuppressInitializers > 2 means that we want to allow 1211 // normal VM bootstrap but once we get into the replay itself 1212 // don't allow any intializers to be run. 1213 ReplaySuppressInitializers = 1; 1214 } 1215 1216 if (FLAG_IS_DEFAULT(ReplayDataFile)) { 1217 tty->print_cr("ERROR: no compiler replay data file specified (use -XX:ReplayDataFile=replay_pid12345.txt)."); 1218 return 1; 1219 } 1220 1221 // Load and parse the replay data 1222 CompileReplay rp(ReplayDataFile, THREAD); 1223 int exit_code = 0; 1224 if (rp.can_replay()) { 1225 rp.process(THREAD); 1226 } else { 1227 exit_code = 1; 1228 return exit_code; 1229 } 1230 1231 if (HAS_PENDING_EXCEPTION) { 1232 Handle throwable(THREAD, PENDING_EXCEPTION); 1233 CLEAR_PENDING_EXCEPTION; 1234 java_lang_Throwable::print_stack_trace(throwable, tty); 1235 tty->cr(); 1236 exit_code = 2; 1237 } 1238 1239 if (rp.had_error()) { 1240 tty->print_cr("Failed on %s", rp.error_message()); 1241 exit_code = 1; 1242 } 1243 return exit_code; 1244 } 1245 1246 void ciReplay::initialize(ciMethodData* m) { 1247 if (replay_state == NULL) { 1248 return; 1249 } 1250 1251 ASSERT_IN_VM; 1252 ResourceMark rm; 1253 1254 Method* method = m->get_MethodData()->method(); 1255 ciMethodDataRecord* rec = replay_state->find_ciMethodDataRecord(method); 1256 if (rec == NULL) { 1257 // This indicates some mismatch with the original environment and 1258 // the replay environment though it's not always enough to 1259 // interfere with reproducing a bug 1260 tty->print_cr("Warning: requesting ciMethodData record for method with no data: "); 1261 method->print_name(tty); 1262 tty->cr(); 1263 } else { 1264 m->_state = rec->_state; 1265 m->_current_mileage = rec->_current_mileage; 1266 if (rec->_data_length != 0) { 1267 assert(m->_data_size + m->_extra_data_size == rec->_data_length * (int)sizeof(rec->_data[0]) || 1268 m->_data_size == rec->_data_length * (int)sizeof(rec->_data[0]), "must agree"); 1269 1270 // Write the correct ciObjects back into the profile data 1271 ciEnv* env = ciEnv::current(); 1272 for (int i = 0; i < rec->_classes_length; i++) { 1273 Klass *k = rec->_classes[i]; 1274 // In case this class pointer is is tagged, preserve the tag bits 1275 intptr_t status = 0; 1276 if (k != NULL) { 1277 status = ciTypeEntries::with_status(env->get_metadata(k)->as_klass(), rec->_data[rec->_classes_offsets[i]]); 1278 } 1279 rec->_data[rec->_classes_offsets[i]] = status; 1280 } 1281 for (int i = 0; i < rec->_methods_length; i++) { 1282 Method *m = rec->_methods[i]; 1283 *(ciMetadata**)(rec->_data + rec->_methods_offsets[i]) = 1284 env->get_metadata(m); 1285 } 1286 // Copy the updated profile data into place as intptr_ts 1287 #ifdef _LP64 1288 Copy::conjoint_jlongs_atomic((jlong *)rec->_data, (jlong *)m->_data, rec->_data_length); 1289 #else 1290 Copy::conjoint_jints_atomic((jint *)rec->_data, (jint *)m->_data, rec->_data_length); 1291 #endif 1292 } 1293 1294 // copy in the original header 1295 Copy::conjoint_jbytes(rec->_orig_data, (char*)&m->_orig, rec->_orig_data_length); 1296 } 1297 } 1298 1299 1300 bool ciReplay::should_not_inline(ciMethod* method) { 1301 if (replay_state == NULL) { 1302 return false; 1303 } 1304 VM_ENTRY_MARK; 1305 // ciMethod without a record shouldn't be inlined. 1306 return replay_state->find_ciMethodRecord(method->get_Method()) == NULL; 1307 } 1308 1309 bool ciReplay::should_inline(void* data, ciMethod* method, int bci, int inline_depth) { 1310 if (data != NULL) { 1311 GrowableArray<ciInlineRecord*>* records = (GrowableArray<ciInlineRecord*>*)data; 1312 VM_ENTRY_MARK; 1313 // Inline record are ordered by bci and depth. 1314 return CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth) != NULL; 1315 } else if (replay_state != NULL) { 1316 VM_ENTRY_MARK; 1317 // Inline record are ordered by bci and depth. 1318 return replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth) != NULL; 1319 } 1320 return false; 1321 } 1322 1323 bool ciReplay::should_not_inline(void* data, ciMethod* method, int bci, int inline_depth) { 1324 if (data != NULL) { 1325 GrowableArray<ciInlineRecord*>* records = (GrowableArray<ciInlineRecord*>*)data; 1326 VM_ENTRY_MARK; 1327 // Inline record are ordered by bci and depth. 1328 return CompileReplay::find_ciInlineRecord(records, method->get_Method(), bci, inline_depth) == NULL; 1329 } else if (replay_state != NULL) { 1330 VM_ENTRY_MARK; 1331 // Inline record are ordered by bci and depth. 1332 return replay_state->find_ciInlineRecord(method->get_Method(), bci, inline_depth) == NULL; 1333 } 1334 return false; 1335 } 1336 1337 void ciReplay::initialize(ciMethod* m) { 1338 if (replay_state == NULL) { 1339 return; 1340 } 1341 1342 ASSERT_IN_VM; 1343 ResourceMark rm; 1344 1345 Method* method = m->get_Method(); 1346 ciMethodRecord* rec = replay_state->find_ciMethodRecord(method); 1347 if (rec == NULL) { 1348 // This indicates some mismatch with the original environment and 1349 // the replay environment though it's not always enough to 1350 // interfere with reproducing a bug 1351 tty->print_cr("Warning: requesting ciMethod record for method with no data: "); 1352 method->print_name(tty); 1353 tty->cr(); 1354 } else { 1355 EXCEPTION_CONTEXT; 1356 // m->_instructions_size = rec->_instructions_size; 1357 m->_instructions_size = -1; 1358 m->_interpreter_invocation_count = rec->_interpreter_invocation_count; 1359 m->_interpreter_throwout_count = rec->_interpreter_throwout_count; 1360 MethodCounters* mcs = method->get_method_counters(CHECK_AND_CLEAR); 1361 guarantee(mcs != NULL, "method counters allocation failed"); 1362 mcs->invocation_counter()->_counter = rec->_invocation_counter; 1363 mcs->backedge_counter()->_counter = rec->_backedge_counter; 1364 } 1365 } 1366 1367 bool ciReplay::is_loaded(Method* method) { 1368 if (replay_state == NULL) { 1369 return true; 1370 } 1371 1372 ASSERT_IN_VM; 1373 ResourceMark rm; 1374 1375 ciMethodRecord* rec = replay_state->find_ciMethodRecord(method); 1376 return rec != NULL; 1377 } 1378 #endif // PRODUCT