1 /* 2 * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "compiler/compilerOracle.hpp" 27 #include "memory/allocation.inline.hpp" 28 #include "memory/oopFactory.hpp" 29 #include "memory/resourceArea.hpp" 30 #include "oops/klass.hpp" 31 #include "oops/method.hpp" 32 #include "oops/oop.inline.hpp" 33 #include "oops/symbol.hpp" 34 #include "runtime/handles.inline.hpp" 35 #include "runtime/jniHandles.hpp" 36 37 class MethodMatcher : public CHeapObj<mtCompiler> { 38 public: 39 enum Mode { 40 Exact, 41 Prefix = 1, 42 Suffix = 2, 43 Substring = Prefix | Suffix, 44 Any, 45 Unknown = -1 46 }; 47 48 protected: 49 Symbol* _class_name; 50 Symbol* _method_name; 51 Symbol* _signature; 52 Mode _class_mode; 53 Mode _method_mode; 54 MethodMatcher* _next; 55 56 static bool match(Symbol* candidate, Symbol* match, Mode match_mode); 57 58 Symbol* class_name() const { return _class_name; } 59 Symbol* method_name() const { return _method_name; } 60 Symbol* signature() const { return _signature; } 61 62 public: 63 MethodMatcher(Symbol* class_name, Mode class_mode, 64 Symbol* method_name, Mode method_mode, 65 Symbol* signature, MethodMatcher* next); 66 MethodMatcher(Symbol* class_name, Symbol* method_name, MethodMatcher* next); 67 68 // utility method 69 MethodMatcher* find(methodHandle method) { 70 Symbol* class_name = method->method_holder()->name(); 71 Symbol* method_name = method->name(); 72 for (MethodMatcher* current = this; current != NULL; current = current->_next) { 73 if (match(class_name, current->class_name(), current->_class_mode) && 74 match(method_name, current->method_name(), current->_method_mode) && 75 (current->signature() == NULL || current->signature() == method->signature())) { 76 return current; 77 } 78 } 79 return NULL; 80 } 81 82 bool match(methodHandle method) { 83 return find(method) != NULL; 84 } 85 86 MethodMatcher* next() const { return _next; } 87 88 static void print_symbol(Symbol* h, Mode mode) { 89 ResourceMark rm; 90 91 if (mode == Suffix || mode == Substring || mode == Any) { 92 tty->print("*"); 93 } 94 if (mode != Any) { 95 h->print_symbol_on(tty); 96 } 97 if (mode == Prefix || mode == Substring) { 98 tty->print("*"); 99 } 100 } 101 102 void print_base() { 103 print_symbol(class_name(), _class_mode); 104 tty->print("."); 105 print_symbol(method_name(), _method_mode); 106 if (signature() != NULL) { 107 tty->print(" "); 108 signature()->print_symbol_on(tty); 109 } 110 } 111 112 virtual void print() { 113 print_base(); 114 tty->cr(); 115 } 116 }; 117 118 MethodMatcher::MethodMatcher(Symbol* class_name, Symbol* method_name, MethodMatcher* next) { 119 _class_name = class_name; 120 _method_name = method_name; 121 _next = next; 122 _class_mode = MethodMatcher::Exact; 123 _method_mode = MethodMatcher::Exact; 124 _signature = NULL; 125 } 126 127 128 MethodMatcher::MethodMatcher(Symbol* class_name, Mode class_mode, 129 Symbol* method_name, Mode method_mode, 130 Symbol* signature, MethodMatcher* next): 131 _class_mode(class_mode) 132 , _method_mode(method_mode) 133 , _next(next) 134 , _class_name(class_name) 135 , _method_name(method_name) 136 , _signature(signature) { 137 } 138 139 bool MethodMatcher::match(Symbol* candidate, Symbol* match, Mode match_mode) { 140 if (match_mode == Any) { 141 return true; 142 } 143 144 if (match_mode == Exact) { 145 return candidate == match; 146 } 147 148 ResourceMark rm; 149 const char * candidate_string = candidate->as_C_string(); 150 const char * match_string = match->as_C_string(); 151 152 switch (match_mode) { 153 case Prefix: 154 return strstr(candidate_string, match_string) == candidate_string; 155 156 case Suffix: { 157 size_t clen = strlen(candidate_string); 158 size_t mlen = strlen(match_string); 159 return clen >= mlen && strcmp(candidate_string + clen - mlen, match_string) == 0; 160 } 161 162 case Substring: 163 return strstr(candidate_string, match_string) != NULL; 164 165 default: 166 return false; 167 } 168 } 169 170 171 class MethodOptionMatcher: public MethodMatcher { 172 const char * option; 173 public: 174 MethodOptionMatcher(Symbol* class_name, Mode class_mode, 175 Symbol* method_name, Mode method_mode, 176 Symbol* signature, const char * opt, MethodMatcher* next): 177 MethodMatcher(class_name, class_mode, method_name, method_mode, signature, next) { 178 option = opt; 179 } 180 181 bool match(methodHandle method, const char* opt) { 182 MethodOptionMatcher* current = this; 183 while (current != NULL) { 184 current = (MethodOptionMatcher*)current->find(method); 185 if (current == NULL) { 186 return false; 187 } 188 if (strcmp(current->option, opt) == 0) { 189 return true; 190 } 191 current = current->next(); 192 } 193 return false; 194 } 195 196 MethodOptionMatcher* next() { 197 return (MethodOptionMatcher*)_next; 198 } 199 200 virtual void print() { 201 print_base(); 202 tty->print(" %s", option); 203 tty->cr(); 204 } 205 }; 206 207 208 209 // this must parallel the command_names below 210 enum OracleCommand { 211 UnknownCommand = -1, 212 OracleFirstCommand = 0, 213 BreakCommand = OracleFirstCommand, 214 PrintCommand, 215 ExcludeCommand, 216 InlineCommand, 217 DontInlineCommand, 218 CompileOnlyCommand, 219 LogCommand, 220 OptionCommand, 221 QuietCommand, 222 HelpCommand, 223 OracleCommandCount 224 }; 225 226 // this must parallel the enum OracleCommand 227 static const char * command_names[] = { 228 "break", 229 "print", 230 "exclude", 231 "inline", 232 "dontinline", 233 "compileonly", 234 "log", 235 "option", 236 "quiet", 237 "help" 238 }; 239 240 class MethodMatcher; 241 static MethodMatcher* lists[OracleCommandCount] = { 0, }; 242 243 244 static bool check_predicate(OracleCommand command, methodHandle method) { 245 return ((lists[command] != NULL) && 246 !method.is_null() && 247 lists[command]->match(method)); 248 } 249 250 251 static MethodMatcher* add_predicate(OracleCommand command, 252 Symbol* class_name, MethodMatcher::Mode c_mode, 253 Symbol* method_name, MethodMatcher::Mode m_mode, 254 Symbol* signature) { 255 assert(command != OptionCommand, "must use add_option_string"); 256 if (command == LogCommand && !LogCompilation && lists[LogCommand] == NULL) 257 tty->print_cr("Warning: +LogCompilation must be enabled in order for individual methods to be logged."); 258 lists[command] = new MethodMatcher(class_name, c_mode, method_name, m_mode, signature, lists[command]); 259 return lists[command]; 260 } 261 262 263 264 static MethodMatcher* add_option_string(Symbol* class_name, MethodMatcher::Mode c_mode, 265 Symbol* method_name, MethodMatcher::Mode m_mode, 266 Symbol* signature, 267 const char* option) { 268 lists[OptionCommand] = new MethodOptionMatcher(class_name, c_mode, method_name, m_mode, 269 signature, option, lists[OptionCommand]); 270 return lists[OptionCommand]; 271 } 272 273 274 bool CompilerOracle::has_option_string(methodHandle method, const char* option) { 275 return lists[OptionCommand] != NULL && 276 ((MethodOptionMatcher*)lists[OptionCommand])->match(method, option); 277 } 278 279 280 bool CompilerOracle::should_exclude(methodHandle method, bool& quietly) { 281 quietly = true; 282 if (lists[ExcludeCommand] != NULL) { 283 if (lists[ExcludeCommand]->match(method)) { 284 quietly = _quiet; 285 return true; 286 } 287 } 288 289 if (lists[CompileOnlyCommand] != NULL) { 290 return !lists[CompileOnlyCommand]->match(method); 291 } 292 return false; 293 } 294 295 296 bool CompilerOracle::should_inline(methodHandle method) { 297 return (check_predicate(InlineCommand, method)); 298 } 299 300 301 bool CompilerOracle::should_not_inline(methodHandle method) { 302 return (check_predicate(DontInlineCommand, method)); 303 } 304 305 306 bool CompilerOracle::should_print(methodHandle method) { 307 return (check_predicate(PrintCommand, method)); 308 } 309 310 311 bool CompilerOracle::should_log(methodHandle method) { 312 if (!LogCompilation) return false; 313 if (lists[LogCommand] == NULL) return true; // by default, log all 314 return (check_predicate(LogCommand, method)); 315 } 316 317 318 bool CompilerOracle::should_break_at(methodHandle method) { 319 return check_predicate(BreakCommand, method); 320 } 321 322 323 static OracleCommand parse_command_name(const char * line, int* bytes_read) { 324 assert(ARRAY_SIZE(command_names) == OracleCommandCount, 325 "command_names size mismatch"); 326 327 *bytes_read = 0; 328 char command[33]; 329 int result = sscanf(line, "%32[a-z]%n", command, bytes_read); 330 for (uint i = 0; i < ARRAY_SIZE(command_names); i++) { 331 if (strcmp(command, command_names[i]) == 0) { 332 return (OracleCommand)i; 333 } 334 } 335 return UnknownCommand; 336 } 337 338 339 static void usage() { 340 tty->print_cr(" CompileCommand and the CompilerOracle allows simple control over"); 341 tty->print_cr(" what's allowed to be compiled. The standard supported directives"); 342 tty->print_cr(" are exclude and compileonly. The exclude directive stops a method"); 343 tty->print_cr(" from being compiled and compileonly excludes all methods except for"); 344 tty->print_cr(" the ones mentioned by compileonly directives. The basic form of"); 345 tty->print_cr(" all commands is a command name followed by the name of the method"); 346 tty->print_cr(" in one of two forms: the standard class file format as in"); 347 tty->print_cr(" class/name.methodName or the PrintCompilation format"); 348 tty->print_cr(" class.name::methodName. The method name can optionally be followed"); 349 tty->print_cr(" by a space then the signature of the method in the class file"); 350 tty->print_cr(" format. Otherwise the directive applies to all methods with the"); 351 tty->print_cr(" same name and class regardless of signature. Leading and trailing"); 352 tty->print_cr(" *'s in the class and/or method name allows a small amount of"); 353 tty->print_cr(" wildcarding. "); 354 tty->cr(); 355 tty->print_cr(" Examples:"); 356 tty->cr(); 357 tty->print_cr(" exclude java/lang/StringBuffer.append"); 358 tty->print_cr(" compileonly java/lang/StringBuffer.toString ()Ljava/lang/String;"); 359 tty->print_cr(" exclude java/lang/String*.*"); 360 tty->print_cr(" exclude *.toString"); 361 } 362 363 364 // The characters allowed in a class or method name. All characters > 0x7f 365 // are allowed in order to handle obfuscated class files (e.g. Volano) 366 #define RANGEBASE "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789$_<>" \ 367 "\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f" \ 368 "\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f" \ 369 "\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf" \ 370 "\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf" \ 371 "\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf" \ 372 "\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf" \ 373 "\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef" \ 374 "\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff" 375 376 #define RANGE0 "[*" RANGEBASE "]" 377 #define RANGESLASH "[*" RANGEBASE "/]" 378 379 static MethodMatcher::Mode check_mode(char name[], const char*& error_msg) { 380 int match = MethodMatcher::Exact; 381 while (name[0] == '*') { 382 match |= MethodMatcher::Suffix; 383 strcpy(name, name + 1); 384 } 385 386 if (strcmp(name, "*") == 0) return MethodMatcher::Any; 387 388 size_t len = strlen(name); 389 while (len > 0 && name[len - 1] == '*') { 390 match |= MethodMatcher::Prefix; 391 name[--len] = '\0'; 392 } 393 394 if (strstr(name, "*") != NULL) { 395 error_msg = " Embedded * not allowed"; 396 return MethodMatcher::Unknown; 397 } 398 return (MethodMatcher::Mode)match; 399 } 400 401 static bool scan_line(const char * line, 402 char class_name[], MethodMatcher::Mode* c_mode, 403 char method_name[], MethodMatcher::Mode* m_mode, 404 int* bytes_read, const char*& error_msg) { 405 *bytes_read = 0; 406 error_msg = NULL; 407 if (2 == sscanf(line, "%*[ \t]%255" RANGESLASH "%*[ ]" "%255" RANGE0 "%n", class_name, method_name, bytes_read)) { 408 *c_mode = check_mode(class_name, error_msg); 409 *m_mode = check_mode(method_name, error_msg); 410 return *c_mode != MethodMatcher::Unknown && *m_mode != MethodMatcher::Unknown; 411 } 412 return false; 413 } 414 415 416 417 void CompilerOracle::parse_from_line(char* line) { 418 if (line[0] == '\0') return; 419 if (line[0] == '#') return; 420 421 bool have_colon = (strstr(line, "::") != NULL); 422 for (char* lp = line; *lp != '\0'; lp++) { 423 // Allow '.' to separate the class name from the method name. 424 // This is the preferred spelling of methods: 425 // exclude java/lang/String.indexOf(I)I 426 // Allow ',' for spaces (eases command line quoting). 427 // exclude,java/lang/String.indexOf 428 // For backward compatibility, allow space as separator also. 429 // exclude java/lang/String indexOf 430 // exclude,java/lang/String,indexOf 431 // For easy cut-and-paste of method names, allow VM output format 432 // as produced by Method::print_short_name: 433 // exclude java.lang.String::indexOf 434 // For simple implementation convenience here, convert them all to space. 435 if (have_colon) { 436 if (*lp == '.') *lp = '/'; // dots build the package prefix 437 if (*lp == ':') *lp = ' '; 438 } 439 if (*lp == ',' || *lp == '.') *lp = ' '; 440 } 441 442 char* original_line = line; 443 int bytes_read; 444 OracleCommand command = parse_command_name(line, &bytes_read); 445 line += bytes_read; 446 447 if (command == UnknownCommand) { 448 tty->print_cr("CompilerOracle: unrecognized line"); 449 tty->print_cr(" \"%s\"", original_line); 450 return; 451 } 452 453 if (command == QuietCommand) { 454 _quiet = true; 455 return; 456 } 457 458 if (command == HelpCommand) { 459 usage(); 460 return; 461 } 462 463 MethodMatcher::Mode c_match = MethodMatcher::Exact; 464 MethodMatcher::Mode m_match = MethodMatcher::Exact; 465 char class_name[256]; 466 char method_name[256]; 467 char sig[1024]; 468 char errorbuf[1024]; 469 const char* error_msg = NULL; 470 MethodMatcher* match = NULL; 471 472 if (scan_line(line, class_name, &c_match, method_name, &m_match, &bytes_read, error_msg)) { 473 EXCEPTION_MARK; 474 Symbol* c_name = SymbolTable::new_symbol(class_name, CHECK); 475 Symbol* m_name = SymbolTable::new_symbol(method_name, CHECK); 476 Symbol* signature = NULL; 477 478 line += bytes_read; 479 // there might be a signature following the method. 480 // signatures always begin with ( so match that by hand 481 if (1 == sscanf(line, "%*[ \t](%254[[);/" RANGEBASE "]%n", sig + 1, &bytes_read)) { 482 sig[0] = '('; 483 line += bytes_read; 484 signature = SymbolTable::new_symbol(sig, CHECK); 485 } 486 487 if (command == OptionCommand) { 488 // Look for trailing options to support 489 // ciMethod::has_option("string") to control features in the 490 // compiler. Multiple options may follow the method name. 491 char option[256]; 492 while (sscanf(line, "%*[ \t]%255[a-zA-Z0-9]%n", option, &bytes_read) == 1) { 493 if (match != NULL && !_quiet) { 494 // Print out the last match added 495 tty->print("CompilerOracle: %s ", command_names[command]); 496 match->print(); 497 } 498 match = add_option_string(c_name, c_match, m_name, m_match, signature, strdup(option)); 499 line += bytes_read; 500 } 501 } else { 502 bytes_read = 0; 503 sscanf(line, "%*[ \t]%n", &bytes_read); 504 if (line[bytes_read] != '\0') { 505 jio_snprintf(errorbuf, sizeof(errorbuf), " Unrecognized text after command: %s", line); 506 error_msg = errorbuf; 507 } else { 508 match = add_predicate(command, c_name, c_match, m_name, m_match, signature); 509 } 510 } 511 } 512 513 if (match != NULL) { 514 if (!_quiet) { 515 ResourceMark rm; 516 tty->print("CompilerOracle: %s ", command_names[command]); 517 match->print(); 518 } 519 } else { 520 tty->print_cr("CompilerOracle: unrecognized line"); 521 tty->print_cr(" \"%s\"", original_line); 522 if (error_msg != NULL) { 523 tty->print_cr(error_msg); 524 } 525 } 526 } 527 528 static const char* default_cc_file = ".hotspot_compiler"; 529 530 static const char* cc_file() { 531 #ifdef ASSERT 532 if (CompileCommandFile == NULL) 533 return default_cc_file; 534 #endif 535 return CompileCommandFile; 536 } 537 538 bool CompilerOracle::has_command_file() { 539 return cc_file() != NULL; 540 } 541 542 bool CompilerOracle::_quiet = false; 543 544 void CompilerOracle::parse_from_file() { 545 assert(has_command_file(), "command file must be specified"); 546 FILE* stream = fopen(cc_file(), "rt"); 547 if (stream == NULL) return; 548 549 char token[1024]; 550 int pos = 0; 551 int c = getc(stream); 552 while(c != EOF && pos < (int)(sizeof(token)-1)) { 553 if (c == '\n') { 554 token[pos++] = '\0'; 555 parse_from_line(token); 556 pos = 0; 557 } else { 558 token[pos++] = c; 559 } 560 c = getc(stream); 561 } 562 token[pos++] = '\0'; 563 parse_from_line(token); 564 565 fclose(stream); 566 } 567 568 void CompilerOracle::parse_from_string(const char* str, void (*parse_line)(char*)) { 569 char token[1024]; 570 int pos = 0; 571 const char* sp = str; 572 int c = *sp++; 573 while (c != '\0' && pos < (int)(sizeof(token)-1)) { 574 if (c == '\n') { 575 token[pos++] = '\0'; 576 parse_line(token); 577 pos = 0; 578 } else { 579 token[pos++] = c; 580 } 581 c = *sp++; 582 } 583 token[pos++] = '\0'; 584 parse_line(token); 585 } 586 587 void CompilerOracle::append_comment_to_file(const char* message) { 588 assert(has_command_file(), "command file must be specified"); 589 fileStream stream(fopen(cc_file(), "at")); 590 stream.print("# "); 591 for (int index = 0; message[index] != '\0'; index++) { 592 stream.put(message[index]); 593 if (message[index] == '\n') stream.print("# "); 594 } 595 stream.cr(); 596 } 597 598 void CompilerOracle::append_exclude_to_file(methodHandle method) { 599 assert(has_command_file(), "command file must be specified"); 600 fileStream stream(fopen(cc_file(), "at")); 601 stream.print("exclude "); 602 method->method_holder()->name()->print_symbol_on(&stream); 603 stream.print("."); 604 method->name()->print_symbol_on(&stream); 605 method->signature()->print_symbol_on(&stream); 606 stream.cr(); 607 stream.cr(); 608 } 609 610 611 void compilerOracle_init() { 612 CompilerOracle::parse_from_string(CompileCommand, CompilerOracle::parse_from_line); 613 CompilerOracle::parse_from_string(CompileOnly, CompilerOracle::parse_compile_only); 614 if (CompilerOracle::has_command_file()) { 615 CompilerOracle::parse_from_file(); 616 } else { 617 struct stat buf; 618 if (os::stat(default_cc_file, &buf) == 0) { 619 warning("%s file is present but has been ignored. " 620 "Run with -XX:CompileCommandFile=%s to load the file.", 621 default_cc_file, default_cc_file); 622 } 623 } 624 if (lists[PrintCommand] != NULL) { 625 if (PrintAssembly) { 626 warning("CompileCommand and/or %s file contains 'print' commands, but PrintAssembly is also enabled", default_cc_file); 627 } else if (FLAG_IS_DEFAULT(DebugNonSafepoints)) { 628 warning("printing of assembly code is enabled; turning on DebugNonSafepoints to gain additional output"); 629 DebugNonSafepoints = true; 630 } 631 } 632 } 633 634 635 void CompilerOracle::parse_compile_only(char * line) { 636 int i; 637 char name[1024]; 638 const char* className = NULL; 639 const char* methodName = NULL; 640 641 bool have_colon = (strstr(line, "::") != NULL); 642 char method_sep = have_colon ? ':' : '.'; 643 644 if (Verbose) { 645 tty->print_cr(line); 646 } 647 648 ResourceMark rm; 649 while (*line != '\0') { 650 MethodMatcher::Mode c_match = MethodMatcher::Exact; 651 MethodMatcher::Mode m_match = MethodMatcher::Exact; 652 653 for (i = 0; 654 i < 1024 && *line != '\0' && *line != method_sep && *line != ',' && !isspace(*line); 655 line++, i++) { 656 name[i] = *line; 657 if (name[i] == '.') name[i] = '/'; // package prefix uses '/' 658 } 659 660 if (i > 0) { 661 char* newName = NEW_RESOURCE_ARRAY( char, i + 1); 662 if (newName == NULL) 663 return; 664 strncpy(newName, name, i); 665 newName[i] = '\0'; 666 667 if (className == NULL) { 668 className = newName; 669 c_match = MethodMatcher::Prefix; 670 } else { 671 methodName = newName; 672 } 673 } 674 675 if (*line == method_sep) { 676 if (className == NULL) { 677 className = ""; 678 c_match = MethodMatcher::Any; 679 } else { 680 // foo/bar.blah is an exact match on foo/bar, bar.blah is a suffix match on bar 681 if (strchr(className, '/') != NULL) { 682 c_match = MethodMatcher::Exact; 683 } else { 684 c_match = MethodMatcher::Suffix; 685 } 686 } 687 } else { 688 // got foo or foo/bar 689 if (className == NULL) { 690 ShouldNotReachHere(); 691 } else { 692 // got foo or foo/bar 693 if (strchr(className, '/') != NULL) { 694 c_match = MethodMatcher::Prefix; 695 } else if (className[0] == '\0') { 696 c_match = MethodMatcher::Any; 697 } else { 698 c_match = MethodMatcher::Substring; 699 } 700 } 701 } 702 703 // each directive is terminated by , or NUL or . followed by NUL 704 if (*line == ',' || *line == '\0' || (line[0] == '.' && line[1] == '\0')) { 705 if (methodName == NULL) { 706 methodName = ""; 707 if (*line != method_sep) { 708 m_match = MethodMatcher::Any; 709 } 710 } 711 712 EXCEPTION_MARK; 713 Symbol* c_name = SymbolTable::new_symbol(className, CHECK); 714 Symbol* m_name = SymbolTable::new_symbol(methodName, CHECK); 715 Symbol* signature = NULL; 716 717 add_predicate(CompileOnlyCommand, c_name, c_match, m_name, m_match, signature); 718 if (PrintVMOptions) { 719 tty->print("CompileOnly: compileonly "); 720 lists[CompileOnlyCommand]->print(); 721 } 722 723 className = NULL; 724 methodName = NULL; 725 } 726 727 line = *line == '\0' ? line : line + 1; 728 } 729 }