1 /* 2 * Copyright (c) 1995, 2010, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* 27 * Shared source for 'java' command line tool. 28 * 29 * If JAVA_ARGS is defined, then acts as a launcher for applications. For 30 * instance, the JDK command line tools such as javac and javadoc (see 31 * makefiles for more details) are built with this program. Any arguments 32 * prefixed with '-J' will be passed directly to the 'java' command. 33 */ 34 35 /* 36 * One job of the launcher is to remove command line options which the 37 * vm does not understand and will not process. These options include 38 * options which select which style of vm is run (e.g. -client and 39 * -server) as well as options which select the data model to use. 40 * Additionally, for tools which invoke an underlying vm "-J-foo" 41 * options are turned into "-foo" options to the vm. This option 42 * filtering is handled in a number of places in the launcher, some of 43 * it in machine-dependent code. In this file, the function 44 * CheckJvmType removes vm style options and TranslateApplicationArgs 45 * removes "-J" prefixes. The CreateExecutionEnvironment function processes 46 * and removes -d<n> options. On unix, there is a possibility that the running 47 * data model may not match to the desired data model, in this case an exec is 48 * required to start the desired model. If the data models match, then 49 * ParseArguments will remove the -d<n> flags. If the data models do not match 50 * the CreateExecutionEnviroment will remove the -d<n> flags. 51 */ 52 53 54 #include "java.h" 55 56 /* 57 * A NOTE TO DEVELOPERS: For performance reasons it is important that 58 * the program image remain relatively small until after SelectVersion 59 * CreateExecutionEnvironment have finished their possibly recursive 60 * processing. Watch everything, but resist all temptations to use Java 61 * interfaces. 62 */ 63 64 /* we always print to stderr */ 65 #define USE_STDERR JNI_TRUE 66 67 static jboolean printVersion = JNI_FALSE; /* print and exit */ 68 static jboolean showVersion = JNI_FALSE; /* print but continue */ 69 static jboolean printUsage = JNI_FALSE; /* print and exit*/ 70 static jboolean printXUsage = JNI_FALSE; /* print and exit*/ 71 static char *showSettings = NULL; /* print but continue */ 72 73 static const char *_program_name; 74 static const char *_launcher_name; 75 static jboolean _is_java_args = JNI_FALSE; 76 static const char *_fVersion; 77 static const char *_dVersion; 78 static jboolean _wc_enabled = JNI_FALSE; 79 static jint _ergo_policy = DEFAULT_POLICY; 80 81 /* 82 * Entries for splash screen environment variables. 83 * putenv is performed in SelectVersion. We need 84 * them in memory until UnsetEnv, so they are made static 85 * global instead of auto local. 86 */ 87 static char* splash_file_entry = NULL; 88 static char* splash_jar_entry = NULL; 89 90 /* 91 * List of VM options to be specified when the VM is created. 92 */ 93 static JavaVMOption *options; 94 static int numOptions, maxOptions; 95 96 /* 97 * Prototypes for functions internal to launcher. 98 */ 99 static void SetClassPath(const char *s); 100 static void SelectVersion(int argc, char **argv, char **main_class); 101 static jboolean ParseArguments(int *pargc, char ***pargv, 102 int *pmode, char **pwhat, 103 int *pret, const char *jrepath); 104 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 105 InvocationFunctions *ifn); 106 static jstring NewPlatformString(JNIEnv *env, char *s); 107 static jobjectArray NewPlatformStringArray(JNIEnv *env, char **strv, int strc); 108 static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 109 110 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 111 static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 112 static void SetApplicationClassPath(const char**); 113 114 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF); 115 static void PrintUsage(JNIEnv* env, jboolean doXUsage); 116 static void ShowSettings(JNIEnv* env, char *optString); 117 118 static void SetPaths(int argc, char **argv); 119 120 static void DumpState(); 121 static jboolean RemovableOption(char *option); 122 123 /* Maximum supported entries from jvm.cfg. */ 124 #define INIT_MAX_KNOWN_VMS 10 125 126 /* Values for vmdesc.flag */ 127 enum vmdesc_flag { 128 VM_UNKNOWN = -1, 129 VM_KNOWN, 130 VM_ALIASED_TO, 131 VM_WARN, 132 VM_ERROR, 133 VM_IF_SERVER_CLASS, 134 VM_IGNORE 135 }; 136 137 struct vmdesc { 138 char *name; 139 int flag; 140 char *alias; 141 char *server_class; 142 }; 143 static struct vmdesc *knownVMs = NULL; 144 static int knownVMsCount = 0; 145 static int knownVMsLimit = 0; 146 147 static void GrowKnownVMs(); 148 static int KnownVMIndex(const char* name); 149 static void FreeKnownVMs(); 150 static void ShowSplashScreen(); 151 static jboolean IsWildCardEnabled(); 152 153 #define ARG_CHECK(n, f, a) if (n < 1) { \ 154 JLI_ReportErrorMessage(f, a); \ 155 printUsage = JNI_TRUE; \ 156 *pret = 1; \ 157 return JNI_TRUE; \ 158 } 159 160 /* 161 * Running Java code in primordial thread caused many problems. We will 162 * create a new thread to invoke JVM. See 6316197 for more information. 163 */ 164 static jlong threadStackSize = 0; /* stack size of the new thread */ 165 static jlong maxHeapSize = 0; /* max heap size */ 166 static jlong initialHeapSize = 0; /* inital heap size */ 167 168 int JNICALL JavaMain(void * args); /* entry point */ 169 170 enum LaunchMode { // cf. sun.launcher.LauncherHelper 171 LM_UNKNOWN = 0, 172 LM_CLASS, 173 LM_JAR 174 }; 175 176 static const char *launchModeNames[] 177 = { "Unknown", "Main class", "JAR file" }; 178 179 typedef struct { 180 int argc; 181 char **argv; 182 int mode; 183 char *what; 184 InvocationFunctions ifn; 185 } JavaMainArgs; 186 187 /* 188 * Entry point. 189 */ 190 int 191 JLI_Launch(int argc, char ** argv, /* main argc, argc */ 192 int jargc, const char** jargv, /* java args */ 193 int appclassc, const char** appclassv, /* app classpath */ 194 const char* fullversion, /* full version defined */ 195 const char* dotversion, /* dot version defined */ 196 const char* pname, /* program name */ 197 const char* lname, /* launcher name */ 198 jboolean javaargs, /* JAVA_ARGS */ 199 jboolean cpwildcard, /* classpath wildcard*/ 200 jboolean javaw, /* windows-only javaw */ 201 jint ergo /* ergonomics class policy */ 202 ) 203 { 204 int mode = LM_UNKNOWN; 205 char *what = NULL; 206 char *cpath = 0; 207 char *main_class = NULL; 208 int ret; 209 InvocationFunctions ifn; 210 jlong start, end; 211 char jvmpath[MAXPATHLEN]; 212 char jrepath[MAXPATHLEN]; 213 214 _fVersion = fullversion; 215 _dVersion = dotversion; 216 _launcher_name = lname; 217 _program_name = pname; 218 _is_java_args = javaargs; 219 _wc_enabled = cpwildcard; 220 _ergo_policy = ergo; 221 222 InitLauncher(javaw); 223 DumpState(); 224 225 /* 226 * Make sure the specified version of the JRE is running. 227 * 228 * There are three things to note about the SelectVersion() routine: 229 * 1) If the version running isn't correct, this routine doesn't 230 * return (either the correct version has been exec'd or an error 231 * was issued). 232 * 2) Argc and Argv in this scope are *not* altered by this routine. 233 * It is the responsibility of subsequent code to ignore the 234 * arguments handled by this routine. 235 * 3) As a side-effect, the variable "main_class" is guaranteed to 236 * be set (if it should ever be set). This isn't exactly the 237 * poster child for structured programming, but it is a small 238 * price to pay for not processing a jar file operand twice. 239 * (Note: This side effect has been disabled. See comment on 240 * bugid 5030265 below.) 241 */ 242 SelectVersion(argc, argv, &main_class); 243 244 if (JLI_IsTraceLauncher()) { 245 int i; 246 printf("Command line args:\n"); 247 for (i = 0; i < argc ; i++) { 248 printf("argv[%d] = %s\n", i, argv[i]); 249 } 250 AddOption("-Dsun.java.launcher.diag=true", NULL); 251 } 252 253 CreateExecutionEnvironment(&argc, &argv, 254 jrepath, sizeof(jrepath), 255 jvmpath, sizeof(jvmpath)); 256 257 ifn.CreateJavaVM = 0; 258 ifn.GetDefaultJavaVMInitArgs = 0; 259 260 if (JLI_IsTraceLauncher()) { 261 start = CounterGet(); 262 } 263 264 if (!LoadJavaVM(jvmpath, &ifn)) { 265 return(6); 266 } 267 268 if (JLI_IsTraceLauncher()) { 269 end = CounterGet(); 270 } 271 272 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", 273 (long)(jint)Counter2Micros(end-start)); 274 275 ++argv; 276 --argc; 277 278 if (IsJavaArgs()) { 279 /* Preprocess wrapper arguments */ 280 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 281 if (!AddApplicationOptions(appclassc, appclassv)) { 282 return(1); 283 } 284 } else { 285 /* Set default CLASSPATH */ 286 cpath = getenv("CLASSPATH"); 287 if (cpath == NULL) { 288 cpath = "."; 289 } 290 SetClassPath(cpath); 291 } 292 293 /* Parse command line options; if the return value of 294 * ParseArguments is false, the program should exit. 295 */ 296 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) 297 { 298 return(ret); 299 } 300 301 /* Override class path if -jar flag was specified */ 302 if (mode == LM_JAR) { 303 SetClassPath(what); /* Override class path */ 304 } 305 306 /* set the -Dsun.java.command pseudo property */ 307 SetJavaCommandLineProp(what, argc, argv); 308 309 /* Set the -Dsun.java.launcher pseudo property */ 310 SetJavaLauncherProp(); 311 312 /* set the -Dsun.java.launcher.* platform properties */ 313 SetJavaLauncherPlatformProps(); 314 315 /* Show the splash screen if needed */ 316 ShowSplashScreen(); 317 318 return ContinueInNewThread(&ifn, argc, argv, mode, what, ret); 319 320 } 321 /* 322 * Always detach the main thread so that it appears to have ended when 323 * the application's main method exits. This will invoke the 324 * uncaught exception handler machinery if main threw an 325 * exception. An uncaught exception handler cannot change the 326 * launcher's return code except by calling System.exit. 327 * 328 * Wait for all non-daemon threads to end, then destroy the VM. 329 * This will actually create a trivial new Java waiter thread 330 * named "DestroyJavaVM", but this will be seen as a different 331 * thread from the one that executed main, even though they are 332 * the same C thread. This allows mainThread.join() and 333 * mainThread.isAlive() to work as expected. 334 */ 335 #define LEAVE() \ 336 if ((*vm)->DetachCurrentThread(vm) != 0) { \ 337 JLI_ReportErrorMessage(JVM_ERROR2); \ 338 ret = 1; \ 339 } \ 340 (*vm)->DestroyJavaVM(vm); \ 341 return ret \ 342 343 #define CHECK_EXCEPTION_NULL_LEAVE(e) \ 344 if ((*env)->ExceptionOccurred(env)) { \ 345 JLI_ReportExceptionDescription(env); \ 346 LEAVE(); \ 347 } \ 348 if ((e) == NULL) { \ 349 JLI_ReportErrorMessage(JNI_ERROR); \ 350 LEAVE(); \ 351 } 352 353 #define CHECK_EXCEPTION_LEAVE(rv) \ 354 if ((*env)->ExceptionOccurred(env)) { \ 355 JLI_ReportExceptionDescription(env); \ 356 ret = (rv); \ 357 LEAVE(); \ 358 } 359 360 int JNICALL 361 JavaMain(void * _args) 362 { 363 JavaMainArgs *args = (JavaMainArgs *)_args; 364 int argc = args->argc; 365 char **argv = args->argv; 366 int mode = args->mode; 367 char *what = args->what; 368 InvocationFunctions ifn = args->ifn; 369 370 JavaVM *vm = 0; 371 JNIEnv *env = 0; 372 jclass mainClass = NULL; 373 jmethodID mainID; 374 jobjectArray mainArgs; 375 int ret = 0; 376 jlong start, end; 377 378 /* Initialize the virtual machine */ 379 start = CounterGet(); 380 if (!InitializeJVM(&vm, &env, &ifn)) { 381 JLI_ReportErrorMessage(JVM_ERROR1); 382 exit(1); 383 } 384 385 if (printVersion || showVersion) { 386 PrintJavaVersion(env, showVersion); 387 CHECK_EXCEPTION_LEAVE(0); 388 if (printVersion) { 389 LEAVE(); 390 } 391 } 392 393 if (showSettings != NULL) { 394 ShowSettings(env, showSettings); 395 CHECK_EXCEPTION_LEAVE(1); 396 } 397 /* If the user specified neither a class name nor a JAR file */ 398 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 399 PrintUsage(env, printXUsage); 400 CHECK_EXCEPTION_LEAVE(1); 401 LEAVE(); 402 } 403 404 FreeKnownVMs(); /* after last possible PrintUsage() */ 405 406 if (JLI_IsTraceLauncher()) { 407 end = CounterGet(); 408 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 409 (long)(jint)Counter2Micros(end-start)); 410 } 411 412 /* At this stage, argc/argv have the application's arguments */ 413 if (JLI_IsTraceLauncher()){ 414 int i; 415 printf("%s is '%s'\n", launchModeNames[mode], what); 416 printf("App's argc is %d\n", argc); 417 for (i=0; i < argc; i++) { 418 printf(" argv[%2d] = '%s'\n", i, argv[i]); 419 } 420 } 421 422 ret = 1; 423 424 /* 425 * Get the application's main class. 426 * 427 * See bugid 5030265. The Main-Class name has already been parsed 428 * from the manifest, but not parsed properly for UTF-8 support. 429 * Hence the code here ignores the value previously extracted and 430 * uses the pre-existing code to reextract the value. This is 431 * possibly an end of release cycle expedient. However, it has 432 * also been discovered that passing some character sets through 433 * the environment has "strange" behavior on some variants of 434 * Windows. Hence, maybe the manifest parsing code local to the 435 * launcher should never be enhanced. 436 * 437 * Hence, future work should either: 438 * 1) Correct the local parsing code and verify that the 439 * Main-Class attribute gets properly passed through 440 * all environments, 441 * 2) Remove the vestages of maintaining main_class through 442 * the environment (and remove these comments). 443 */ 444 mainClass = LoadMainClass(env, mode, what); 445 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 446 447 /* 448 * The LoadMainClass not only loads the main class, it will also ensure 449 * that the main method's signature is correct, therefore further checking 450 * is not required. The main method is invoked here so that extraneous java 451 * stacks are not in the application stack trace. 452 */ 453 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 454 "([Ljava/lang/String;)V"); 455 CHECK_EXCEPTION_NULL_LEAVE(mainID); 456 457 /* Build argument array */ 458 mainArgs = NewPlatformStringArray(env, argv, argc); 459 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 460 461 /* Invoke main method. */ 462 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 463 464 /* 465 * The launcher's exit code (in the absence of calls to 466 * System.exit) will be non-zero if main threw an exception. 467 */ 468 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 469 LEAVE(); 470 } 471 472 /* 473 * Checks the command line options to find which JVM type was 474 * specified. If no command line option was given for the JVM type, 475 * the default type is used. The environment variable 476 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 477 * checked as ways of specifying which JVM type to invoke. 478 */ 479 char * 480 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 481 int i, argi; 482 int argc; 483 char **newArgv; 484 int newArgvIdx = 0; 485 int isVMType; 486 int jvmidx = -1; 487 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 488 489 argc = *pargc; 490 491 /* To make things simpler we always copy the argv array */ 492 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 493 494 /* The program name is always present */ 495 newArgv[newArgvIdx++] = (*argv)[0]; 496 497 for (argi = 1; argi < argc; argi++) { 498 char *arg = (*argv)[argi]; 499 isVMType = 0; 500 501 if (IsJavaArgs()) { 502 if (arg[0] != '-') { 503 newArgv[newArgvIdx++] = arg; 504 continue; 505 } 506 } else { 507 if (JLI_StrCmp(arg, "-classpath") == 0 || 508 JLI_StrCmp(arg, "-cp") == 0) { 509 newArgv[newArgvIdx++] = arg; 510 argi++; 511 if (argi < argc) { 512 newArgv[newArgvIdx++] = (*argv)[argi]; 513 } 514 continue; 515 } 516 if (arg[0] != '-') break; 517 } 518 519 /* Did the user pass an explicit VM type? */ 520 i = KnownVMIndex(arg); 521 if (i >= 0) { 522 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 523 isVMType = 1; 524 *pargc = *pargc - 1; 525 } 526 527 /* Did the user specify an "alternate" VM? */ 528 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 529 isVMType = 1; 530 jvmtype = arg+((arg[1]=='X')? 10 : 12); 531 jvmidx = -1; 532 } 533 534 if (!isVMType) { 535 newArgv[newArgvIdx++] = arg; 536 } 537 } 538 539 /* 540 * Finish copying the arguments if we aborted the above loop. 541 * NOTE that if we aborted via "break" then we did NOT copy the 542 * last argument above, and in addition argi will be less than 543 * argc. 544 */ 545 while (argi < argc) { 546 newArgv[newArgvIdx++] = (*argv)[argi]; 547 argi++; 548 } 549 550 /* argv is null-terminated */ 551 newArgv[newArgvIdx] = 0; 552 553 /* Copy back argv */ 554 *argv = newArgv; 555 *pargc = newArgvIdx; 556 557 /* use the default VM type if not specified (no alias processing) */ 558 if (jvmtype == NULL) { 559 char* result = knownVMs[0].name+1; 560 /* Use a different VM type if we are on a server class machine? */ 561 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && 562 (ServerClassMachine() == JNI_TRUE)) { 563 result = knownVMs[0].server_class+1; 564 } 565 JLI_TraceLauncher("Default VM: %s\n", result); 566 return result; 567 } 568 569 /* if using an alternate VM, no alias processing */ 570 if (jvmidx < 0) 571 return jvmtype; 572 573 /* Resolve aliases first */ 574 { 575 int loopCount = 0; 576 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 577 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 578 579 if (loopCount > knownVMsCount) { 580 if (!speculative) { 581 JLI_ReportErrorMessage(CFG_ERROR1); 582 exit(1); 583 } else { 584 return "ERROR"; 585 /* break; */ 586 } 587 } 588 589 if (nextIdx < 0) { 590 if (!speculative) { 591 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 592 exit(1); 593 } else { 594 return "ERROR"; 595 } 596 } 597 jvmidx = nextIdx; 598 jvmtype = knownVMs[jvmidx].name+1; 599 loopCount++; 600 } 601 } 602 603 switch (knownVMs[jvmidx].flag) { 604 case VM_WARN: 605 if (!speculative) { 606 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 607 } 608 /* fall through */ 609 case VM_IGNORE: 610 jvmtype = knownVMs[jvmidx=0].name + 1; 611 /* fall through */ 612 case VM_KNOWN: 613 break; 614 case VM_ERROR: 615 if (!speculative) { 616 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 617 exit(1); 618 } else { 619 return "ERROR"; 620 } 621 } 622 623 return jvmtype; 624 } 625 626 /* copied from HotSpot function "atomll()" */ 627 static int 628 parse_size(const char *s, jlong *result) { 629 jlong n = 0; 630 int args_read = sscanf(s, jlong_format_specifier(), &n); 631 if (args_read != 1) { 632 return 0; 633 } 634 while (*s != '\0' && *s >= '0' && *s <= '9') { 635 s++; 636 } 637 // 4705540: illegal if more characters are found after the first non-digit 638 if (JLI_StrLen(s) > 1) { 639 return 0; 640 } 641 switch (*s) { 642 case 'T': case 't': 643 *result = n * GB * KB; 644 return 1; 645 case 'G': case 'g': 646 *result = n * GB; 647 return 1; 648 case 'M': case 'm': 649 *result = n * MB; 650 return 1; 651 case 'K': case 'k': 652 *result = n * KB; 653 return 1; 654 case '\0': 655 *result = n; 656 return 1; 657 default: 658 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 659 return 0; 660 } 661 } 662 663 /* 664 * Adds a new VM option with the given given name and value. 665 */ 666 void 667 AddOption(char *str, void *info) 668 { 669 /* 670 * Expand options array if needed to accommodate at least one more 671 * VM option. 672 */ 673 if (numOptions >= maxOptions) { 674 if (options == 0) { 675 maxOptions = 4; 676 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 677 } else { 678 JavaVMOption *tmp; 679 maxOptions *= 2; 680 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 681 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 682 JLI_MemFree(options); 683 options = tmp; 684 } 685 } 686 options[numOptions].optionString = str; 687 options[numOptions++].extraInfo = info; 688 689 if (JLI_StrCCmp(str, "-Xss") == 0) { 690 jlong tmp; 691 if (parse_size(str + 4, &tmp)) { 692 threadStackSize = tmp; 693 } 694 } 695 696 if (JLI_StrCCmp(str, "-Xmx") == 0) { 697 jlong tmp; 698 if (parse_size(str + 4, &tmp)) { 699 maxHeapSize = tmp; 700 } 701 } 702 703 if (JLI_StrCCmp(str, "-Xms") == 0) { 704 jlong tmp; 705 if (parse_size(str + 4, &tmp)) { 706 initialHeapSize = tmp; 707 } 708 } 709 } 710 711 static void 712 SetClassPath(const char *s) 713 { 714 char *def; 715 const char *orig = s; 716 static const char format[] = "-Djava.class.path=%s"; 717 s = JLI_WildcardExpandClasspath(s); 718 def = JLI_MemAlloc(sizeof(format) 719 - 2 /* strlen("%s") */ 720 + JLI_StrLen(s)); 721 sprintf(def, format, s); 722 AddOption(def, NULL); 723 if (s != orig) 724 JLI_MemFree((char *) s); 725 } 726 727 /* 728 * The SelectVersion() routine ensures that an appropriate version of 729 * the JRE is running. The specification for the appropriate version 730 * is obtained from either the manifest of a jar file (preferred) or 731 * from command line options. 732 * The routine also parses splash screen command line options and 733 * passes on their values in private environment variables. 734 */ 735 static void 736 SelectVersion(int argc, char **argv, char **main_class) 737 { 738 char *arg; 739 char **new_argv; 740 char **new_argp; 741 char *operand; 742 char *version = NULL; 743 char *jre = NULL; 744 int jarflag = 0; 745 int headlessflag = 0; 746 int restrict_search = -1; /* -1 implies not known */ 747 manifest_info info; 748 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 749 char *splash_file_name = NULL; 750 char *splash_jar_name = NULL; 751 char *env_in; 752 int res; 753 754 /* 755 * If the version has already been selected, set *main_class 756 * with the value passed through the environment (if any) and 757 * simply return. 758 */ 759 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 760 if (*env_in != '\0') 761 *main_class = JLI_StringDup(env_in); 762 return; 763 } 764 765 /* 766 * Scan through the arguments for options relevant to multiple JRE 767 * support. For reference, the command line syntax is defined as: 768 * 769 * SYNOPSIS 770 * java [options] class [argument...] 771 * 772 * java [options] -jar file.jar [argument...] 773 * 774 * As the scan is performed, make a copy of the argument list with 775 * the version specification options (new to 1.5) removed, so that 776 * a version less than 1.5 can be exec'd. 777 * 778 * Note that due to the syntax of the native Windows interface 779 * CreateProcess(), processing similar to the following exists in 780 * the Windows platform specific routine ExecJRE (in java_md.c). 781 * Changes here should be reproduced there. 782 */ 783 new_argv = JLI_MemAlloc((argc + 1) * sizeof(char*)); 784 new_argv[0] = argv[0]; 785 new_argp = &new_argv[1]; 786 argc--; 787 argv++; 788 while ((arg = *argv) != 0 && *arg == '-') { 789 if (JLI_StrCCmp(arg, "-version:") == 0) { 790 version = arg + 9; 791 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 792 restrict_search = 1; 793 } else if (JLI_StrCmp(arg, "-no-jre-restrict-search") == 0) { 794 restrict_search = 0; 795 } else { 796 if (JLI_StrCmp(arg, "-jar") == 0) 797 jarflag = 1; 798 /* deal with "unfortunate" classpath syntax */ 799 if ((JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) && 800 (argc >= 2)) { 801 *new_argp++ = arg; 802 argc--; 803 argv++; 804 arg = *argv; 805 } 806 807 /* 808 * Checking for headless toolkit option in the some way as AWT does: 809 * "true" means true and any other value means false 810 */ 811 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 812 headlessflag = 1; 813 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 814 headlessflag = 0; 815 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 816 splash_file_name = arg+8; 817 } 818 *new_argp++ = arg; 819 } 820 argc--; 821 argv++; 822 } 823 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 824 operand = NULL; 825 } else { 826 argc--; 827 *new_argp++ = operand = *argv++; 828 } 829 while (argc-- > 0) /* Copy over [argument...] */ 830 *new_argp++ = *argv++; 831 *new_argp = NULL; 832 833 /* 834 * If there is a jar file, read the manifest. If the jarfile can't be 835 * read, the manifest can't be read from the jar file, or the manifest 836 * is corrupt, issue the appropriate error messages and exit. 837 * 838 * Even if there isn't a jar file, construct a manifest_info structure 839 * containing the command line information. It's a convenient way to carry 840 * this data around. 841 */ 842 if (jarflag && operand) { 843 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 844 if (res == -1) 845 JLI_ReportErrorMessage(JAR_ERROR2, operand); 846 else 847 JLI_ReportErrorMessage(JAR_ERROR3, operand); 848 exit(1); 849 } 850 851 /* 852 * Command line splash screen option should have precedence 853 * over the manifest, so the manifest data is used only if 854 * splash_file_name has not been initialized above during command 855 * line parsing 856 */ 857 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 858 splash_file_name = info.splashscreen_image_file_name; 859 splash_jar_name = operand; 860 } 861 } else { 862 info.manifest_version = NULL; 863 info.main_class = NULL; 864 info.jre_version = NULL; 865 info.jre_restrict_search = 0; 866 } 867 868 /* 869 * Passing on splash screen info in environment variables 870 */ 871 if (splash_file_name && !headlessflag) { 872 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 873 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 874 JLI_StrCat(splash_file_entry, splash_file_name); 875 putenv(splash_file_entry); 876 } 877 if (splash_jar_name && !headlessflag) { 878 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 879 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 880 JLI_StrCat(splash_jar_entry, splash_jar_name); 881 putenv(splash_jar_entry); 882 } 883 884 /* 885 * The JRE-Version and JRE-Restrict-Search values (if any) from the 886 * manifest are overwritten by any specified on the command line. 887 */ 888 if (version != NULL) 889 info.jre_version = version; 890 if (restrict_search != -1) 891 info.jre_restrict_search = restrict_search; 892 893 /* 894 * "Valid" returns (other than unrecoverable errors) follow. Set 895 * main_class as a side-effect of this routine. 896 */ 897 if (info.main_class != NULL) 898 *main_class = JLI_StringDup(info.main_class); 899 900 /* 901 * If no version selection information is found either on the command 902 * line or in the manifest, simply return. 903 */ 904 if (info.jre_version == NULL) { 905 JLI_FreeManifest(); 906 JLI_MemFree(new_argv); 907 return; 908 } 909 910 /* 911 * Check for correct syntax of the version specification (JSR 56). 912 */ 913 if (!JLI_ValidVersionString(info.jre_version)) { 914 JLI_ReportErrorMessage(SPC_ERROR1, info.jre_version); 915 exit(1); 916 } 917 918 /* 919 * Find the appropriate JVM on the system. Just to be as forgiving as 920 * possible, if the standard algorithms don't locate an appropriate 921 * jre, check to see if the one running will satisfy the requirements. 922 * This can happen on systems which haven't been set-up for multiple 923 * JRE support. 924 */ 925 jre = LocateJRE(&info); 926 JLI_TraceLauncher("JRE-Version = %s, JRE-Restrict-Search = %s Selected = %s\n", 927 (info.jre_version?info.jre_version:"null"), 928 (info.jre_restrict_search?"true":"false"), (jre?jre:"null")); 929 930 if (jre == NULL) { 931 if (JLI_AcceptableRelease(GetFullVersion(), info.jre_version)) { 932 JLI_FreeManifest(); 933 JLI_MemFree(new_argv); 934 return; 935 } else { 936 JLI_ReportErrorMessage(CFG_ERROR4, info.jre_version); 937 exit(1); 938 } 939 } 940 941 /* 942 * If I'm not the chosen one, exec the chosen one. Returning from 943 * ExecJRE indicates that I am indeed the chosen one. 944 * 945 * The private environment variable _JAVA_VERSION_SET is used to 946 * prevent the chosen one from re-reading the manifest file and 947 * using the values found within to override the (potential) command 948 * line flags stripped from argv (because the target may not 949 * understand them). Passing the MainClass value is an optimization 950 * to avoid locating, expanding and parsing the manifest extra 951 * times. 952 */ 953 if (info.main_class != NULL) { 954 if (JLI_StrLen(info.main_class) <= MAXNAMELEN) { 955 (void)JLI_StrCat(env_entry, info.main_class); 956 } else { 957 JLI_ReportErrorMessage(CLS_ERROR5, MAXNAMELEN); 958 exit(1); 959 } 960 } 961 (void)putenv(env_entry); 962 ExecJRE(jre, new_argv); 963 JLI_FreeManifest(); 964 JLI_MemFree(new_argv); 965 return; 966 } 967 968 /* 969 * Parses command line arguments. Returns JNI_FALSE if launcher 970 * should exit without starting vm, returns JNI_TRUE if vm needs 971 * to be started to process given options. *pret (the launcher 972 * process return value) is set to 0 for a normal exit. 973 */ 974 static jboolean 975 ParseArguments(int *pargc, char ***pargv, 976 int *pmode, char **pwhat, 977 int *pret, const char *jrepath) 978 { 979 int argc = *pargc; 980 char **argv = *pargv; 981 int mode = LM_UNKNOWN; 982 char *arg; 983 984 *pret = 0; 985 986 while ((arg = *argv) != 0 && *arg == '-') { 987 argv++; --argc; 988 if (JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) { 989 ARG_CHECK (argc, ARG_ERROR1, arg); 990 SetClassPath(*argv); 991 mode = LM_CLASS; 992 argv++; --argc; 993 } else if (JLI_StrCmp(arg, "-jar") == 0) { 994 ARG_CHECK (argc, ARG_ERROR2, arg); 995 mode = LM_JAR; 996 } else if (JLI_StrCmp(arg, "-help") == 0 || 997 JLI_StrCmp(arg, "-h") == 0 || 998 JLI_StrCmp(arg, "-?") == 0) { 999 printUsage = JNI_TRUE; 1000 return JNI_TRUE; 1001 } else if (JLI_StrCmp(arg, "-version") == 0) { 1002 printVersion = JNI_TRUE; 1003 return JNI_TRUE; 1004 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1005 showVersion = JNI_TRUE; 1006 } else if (JLI_StrCmp(arg, "-X") == 0) { 1007 printXUsage = JNI_TRUE; 1008 return JNI_TRUE; 1009 /* 1010 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1011 * In the latter case, any SUBOPT value not recognized will default to "all" 1012 */ 1013 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1014 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1015 showSettings = arg; 1016 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1017 AddOption("-Dsun.java.launcher.diag=true", NULL); 1018 /* 1019 * The following case provide backward compatibility with old-style 1020 * command line options. 1021 */ 1022 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1023 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1024 return JNI_FALSE; 1025 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1026 AddOption("-verbose:gc", NULL); 1027 } else if (JLI_StrCmp(arg, "-t") == 0) { 1028 AddOption("-Xt", NULL); 1029 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1030 AddOption("-Xtm", NULL); 1031 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1032 AddOption("-Xdebug", NULL); 1033 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1034 AddOption("-Xnoclassgc", NULL); 1035 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1036 AddOption("-Xverify:all", NULL); 1037 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1038 AddOption("-Xverify:all", NULL); 1039 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1040 AddOption("-Xverify:remote", NULL); 1041 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1042 AddOption("-Xverify:none", NULL); 1043 } else if (JLI_StrCCmp(arg, "-prof") == 0) { 1044 char *p = arg + 5; 1045 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 50); 1046 if (*p) { 1047 sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1); 1048 } else { 1049 sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof"); 1050 } 1051 AddOption(tmp, NULL); 1052 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1053 JLI_StrCCmp(arg, "-oss") == 0 || 1054 JLI_StrCCmp(arg, "-ms") == 0 || 1055 JLI_StrCCmp(arg, "-mx") == 0) { 1056 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1057 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1058 AddOption(tmp, NULL); 1059 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1060 JLI_StrCmp(arg, "-cs") == 0 || 1061 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1062 /* No longer supported */ 1063 JLI_ReportErrorMessage(ARG_WARN, arg); 1064 } else if (JLI_StrCCmp(arg, "-version:") == 0 || 1065 JLI_StrCmp(arg, "-no-jre-restrict-search") == 0 || 1066 JLI_StrCmp(arg, "-jre-restrict-search") == 0 || 1067 JLI_StrCCmp(arg, "-splash:") == 0) { 1068 ; /* Ignore machine independent options already handled */ 1069 } else if (RemovableOption(arg) ) { 1070 ; /* Do not pass option to vm. */ 1071 } else { 1072 AddOption(arg, NULL); 1073 } 1074 } 1075 1076 if (--argc >= 0) { 1077 *pwhat = *argv++; 1078 } 1079 1080 if (*pwhat == NULL) { 1081 *pret = 1; 1082 } else if (mode == LM_UNKNOWN) { 1083 /* default to LM_CLASS if -jar and -cp option are 1084 * not specified */ 1085 mode = LM_CLASS; 1086 } 1087 1088 if (argc >= 0) { 1089 *pargc = argc; 1090 *pargv = argv; 1091 } 1092 1093 *pmode = mode; 1094 1095 return JNI_TRUE; 1096 } 1097 1098 /* 1099 * Initializes the Java Virtual Machine. Also frees options array when 1100 * finished. 1101 */ 1102 static jboolean 1103 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1104 { 1105 JavaVMInitArgs args; 1106 jint r; 1107 1108 memset(&args, 0, sizeof(args)); 1109 args.version = JNI_VERSION_1_2; 1110 args.nOptions = numOptions; 1111 args.options = options; 1112 args.ignoreUnrecognized = JNI_FALSE; 1113 1114 if (JLI_IsTraceLauncher()) { 1115 int i = 0; 1116 printf("JavaVM args:\n "); 1117 printf("version 0x%08lx, ", (long)args.version); 1118 printf("ignoreUnrecognized is %s, ", 1119 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1120 printf("nOptions is %ld\n", (long)args.nOptions); 1121 for (i = 0; i < numOptions; i++) 1122 printf(" option[%2d] = '%s'\n", 1123 i, args.options[i].optionString); 1124 } 1125 1126 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1127 JLI_MemFree(options); 1128 return r == JNI_OK; 1129 } 1130 1131 1132 #define NULL_CHECK0(e) if ((e) == 0) { \ 1133 JLI_ReportErrorMessage(JNI_ERROR); \ 1134 return 0; \ 1135 } 1136 1137 #define NULL_CHECK(e) if ((e) == 0) { \ 1138 JLI_ReportErrorMessage(JNI_ERROR); \ 1139 return; \ 1140 } 1141 1142 static jclass helperClass = NULL; 1143 1144 static jclass 1145 GetLauncherHelperClass(JNIEnv *env) { 1146 if (helperClass == NULL) { 1147 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1148 "sun/launcher/LauncherHelper")); 1149 } 1150 return helperClass; 1151 } 1152 1153 static jmethodID makePlatformStringMID = NULL; 1154 /* 1155 * Returns a new Java string object for the specified platform string. 1156 */ 1157 static jstring 1158 NewPlatformString(JNIEnv *env, char *s) 1159 { 1160 int len = (int)JLI_StrLen(s); 1161 jbyteArray ary; 1162 jclass cls = GetLauncherHelperClass(env); 1163 NULL_CHECK0(cls); 1164 if (s == NULL) 1165 return 0; 1166 1167 ary = (*env)->NewByteArray(env, len); 1168 if (ary != 0) { 1169 jstring str = 0; 1170 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1171 if (!(*env)->ExceptionOccurred(env)) { 1172 if (makePlatformStringMID == NULL) { 1173 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1174 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1175 } 1176 str = (*env)->CallStaticObjectMethod(env, cls, 1177 makePlatformStringMID, USE_STDERR, ary); 1178 (*env)->DeleteLocalRef(env, ary); 1179 return str; 1180 } 1181 } 1182 return 0; 1183 } 1184 1185 /* 1186 * Returns a new array of Java string objects for the specified 1187 * array of platform strings. 1188 */ 1189 static jobjectArray 1190 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1191 { 1192 jarray cls; 1193 jarray ary; 1194 int i; 1195 1196 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1197 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1198 for (i = 0; i < strc; i++) { 1199 jstring str = NewPlatformString(env, *strv++); 1200 NULL_CHECK0(str); 1201 (*env)->SetObjectArrayElement(env, ary, i, str); 1202 (*env)->DeleteLocalRef(env, str); 1203 } 1204 return ary; 1205 } 1206 1207 /* 1208 * Loads a class and verifies that the main class is present and it is ok to 1209 * call it for more details refer to the java implementation. 1210 */ 1211 static jclass 1212 LoadMainClass(JNIEnv *env, int mode, char *name) 1213 { 1214 jmethodID mid; 1215 jstring str; 1216 jobject result; 1217 jlong start, end; 1218 jclass cls = GetLauncherHelperClass(env); 1219 NULL_CHECK0(cls); 1220 if (JLI_IsTraceLauncher()) { 1221 start = CounterGet(); 1222 } 1223 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1224 "checkAndLoadMain", 1225 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1226 1227 switch (mode) { 1228 case LM_CLASS: 1229 str = NewPlatformString(env, name); 1230 break; 1231 default: 1232 str = (*env)->NewStringUTF(env, name); 1233 break; 1234 } 1235 result = (*env)->CallStaticObjectMethod(env, cls, mid, USE_STDERR, mode, str); 1236 1237 if (JLI_IsTraceLauncher()) { 1238 end = CounterGet(); 1239 printf("%ld micro seconds to load main class\n", 1240 (long)(jint)Counter2Micros(end-start)); 1241 printf("----_JAVA_LAUNCHER_DEBUG----\n"); 1242 } 1243 1244 return (jclass)result; 1245 } 1246 1247 /* 1248 * For tools, convert command line args thus: 1249 * javac -cp foo:foo/"*" -J-ms32m ... 1250 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1251 * 1252 * Takes 4 parameters, and returns the populated arguments 1253 */ 1254 static void 1255 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1256 { 1257 int argc = *pargc; 1258 char **argv = *pargv; 1259 int nargc = argc + jargc; 1260 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1261 int i; 1262 1263 *pargc = nargc; 1264 *pargv = nargv; 1265 1266 /* Copy the VM arguments (i.e. prefixed with -J) */ 1267 for (i = 0; i < jargc; i++) { 1268 const char *arg = jargv[i]; 1269 if (arg[0] == '-' && arg[1] == 'J') { 1270 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1271 } 1272 } 1273 1274 for (i = 0; i < argc; i++) { 1275 char *arg = argv[i]; 1276 if (arg[0] == '-' && arg[1] == 'J') { 1277 if (arg[2] == '\0') { 1278 JLI_ReportErrorMessage(ARG_ERROR3); 1279 exit(1); 1280 } 1281 *nargv++ = arg + 2; 1282 } 1283 } 1284 1285 /* Copy the rest of the arguments */ 1286 for (i = 0; i < jargc ; i++) { 1287 const char *arg = jargv[i]; 1288 if (arg[0] != '-' || arg[1] != 'J') { 1289 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1290 } 1291 } 1292 for (i = 0; i < argc; i++) { 1293 char *arg = argv[i]; 1294 if (arg[0] == '-') { 1295 if (arg[1] == 'J') 1296 continue; 1297 if (IsWildCardEnabled() && arg[1] == 'c' 1298 && (JLI_StrCmp(arg, "-cp") == 0 || 1299 JLI_StrCmp(arg, "-classpath") == 0) 1300 && i < argc - 1) { 1301 *nargv++ = arg; 1302 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1303 i++; 1304 continue; 1305 } 1306 } 1307 *nargv++ = arg; 1308 } 1309 *nargv = 0; 1310 } 1311 1312 /* 1313 * For our tools, we try to add 3 VM options: 1314 * -Denv.class.path=<envcp> 1315 * -Dapplication.home=<apphome> 1316 * -Djava.class.path=<appcp> 1317 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1318 * tells javac where to find binary classes through this environment 1319 * variable. Notice that users will be able to compile against our 1320 * tools classes (sun.tools.javac.Main) only if they explicitly add 1321 * tools.jar to CLASSPATH. 1322 * <apphome> is the directory where the application is installed. 1323 * <appcp> is the classpath to where our apps' classfiles are. 1324 */ 1325 static jboolean 1326 AddApplicationOptions(int cpathc, const char **cpathv) 1327 { 1328 char *envcp, *appcp, *apphome; 1329 char home[MAXPATHLEN]; /* application home */ 1330 char separator[] = { PATH_SEPARATOR, '\0' }; 1331 int size, i; 1332 1333 { 1334 const char *s = getenv("CLASSPATH"); 1335 if (s) { 1336 s = (char *) JLI_WildcardExpandClasspath(s); 1337 /* 40 for -Denv.class.path= */ 1338 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1339 sprintf(envcp, "-Denv.class.path=%s", s); 1340 AddOption(envcp, NULL); 1341 } 1342 } 1343 1344 if (!GetApplicationHome(home, sizeof(home))) { 1345 JLI_ReportErrorMessage(CFG_ERROR5); 1346 return JNI_FALSE; 1347 } 1348 1349 /* 40 for '-Dapplication.home=' */ 1350 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1351 sprintf(apphome, "-Dapplication.home=%s", home); 1352 AddOption(apphome, NULL); 1353 1354 /* How big is the application's classpath? */ 1355 size = 40; /* 40: "-Djava.class.path=" */ 1356 for (i = 0; i < cpathc; i++) { 1357 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1358 } 1359 appcp = (char *)JLI_MemAlloc(size + 1); 1360 JLI_StrCpy(appcp, "-Djava.class.path="); 1361 for (i = 0; i < cpathc; i++) { 1362 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1363 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1364 JLI_StrCat(appcp, separator); /* ; */ 1365 } 1366 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1367 AddOption(appcp, NULL); 1368 return JNI_TRUE; 1369 } 1370 1371 /* 1372 * inject the -Dsun.java.command pseudo property into the args structure 1373 * this pseudo property is used in the HotSpot VM to expose the 1374 * Java class name and arguments to the main method to the VM. The 1375 * HotSpot VM uses this pseudo property to store the Java class name 1376 * (or jar file name) and the arguments to the class's main method 1377 * to the instrumentation memory region. The sun.java.command pseudo 1378 * property is not exported by HotSpot to the Java layer. 1379 */ 1380 void 1381 SetJavaCommandLineProp(char *what, int argc, char **argv) 1382 { 1383 1384 int i = 0; 1385 size_t len = 0; 1386 char* javaCommand = NULL; 1387 char* dashDstr = "-Dsun.java.command="; 1388 1389 if (what == NULL) { 1390 /* unexpected, one of these should be set. just return without 1391 * setting the property 1392 */ 1393 return; 1394 } 1395 1396 /* determine the amount of memory to allocate assuming 1397 * the individual components will be space separated 1398 */ 1399 len = JLI_StrLen(what); 1400 for (i = 0; i < argc; i++) { 1401 len += JLI_StrLen(argv[i]) + 1; 1402 } 1403 1404 /* allocate the memory */ 1405 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1406 1407 /* build the -D string */ 1408 *javaCommand = '\0'; 1409 JLI_StrCat(javaCommand, dashDstr); 1410 JLI_StrCat(javaCommand, what); 1411 1412 for (i = 0; i < argc; i++) { 1413 /* the components of the string are space separated. In 1414 * the case of embedded white space, the relationship of 1415 * the white space separated components to their true 1416 * positional arguments will be ambiguous. This issue may 1417 * be addressed in a future release. 1418 */ 1419 JLI_StrCat(javaCommand, " "); 1420 JLI_StrCat(javaCommand, argv[i]); 1421 } 1422 1423 AddOption(javaCommand, NULL); 1424 } 1425 1426 /* 1427 * JVM would like to know if it's created by a standard Sun launcher, or by 1428 * user native application, the following property indicates the former. 1429 */ 1430 void 1431 SetJavaLauncherProp() { 1432 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1433 } 1434 1435 /* 1436 * Prints the version information from the java.version and other properties. 1437 */ 1438 static void 1439 PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1440 { 1441 jclass ver; 1442 jmethodID print; 1443 1444 NULL_CHECK(ver = FindBootStrapClass(env, "sun/misc/Version")); 1445 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1446 ver, 1447 (extraLF == JNI_TRUE) ? "println" : "print", 1448 "()V" 1449 ) 1450 ); 1451 1452 (*env)->CallStaticVoidMethod(env, ver, print); 1453 } 1454 1455 /* 1456 * Prints all the Java settings, see the java implementation for more details. 1457 */ 1458 static void 1459 ShowSettings(JNIEnv *env, char *optString) 1460 { 1461 jmethodID showSettingsID; 1462 jstring joptString; 1463 jclass cls = GetLauncherHelperClass(env); 1464 NULL_CHECK(cls); 1465 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1466 "showSettings", "(ZLjava/lang/String;JJJZ)V")); 1467 joptString = (*env)->NewStringUTF(env, optString); 1468 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1469 USE_STDERR, 1470 joptString, 1471 (jlong)initialHeapSize, 1472 (jlong)maxHeapSize, 1473 (jlong)threadStackSize, 1474 ServerClassMachine()); 1475 } 1476 1477 /* 1478 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1479 */ 1480 static void 1481 PrintUsage(JNIEnv* env, jboolean doXUsage) 1482 { 1483 jmethodID initHelp, vmSelect, vmSynonym, vmErgo, printHelp, printXUsageMessage; 1484 jstring jprogname, vm1, vm2; 1485 int i; 1486 jclass cls = GetLauncherHelperClass(env); 1487 NULL_CHECK(cls); 1488 if (doXUsage) { 1489 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1490 "printXUsageMessage", "(Z)V")); 1491 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, USE_STDERR); 1492 } else { 1493 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1494 "initHelpMessage", "(Ljava/lang/String;)V")); 1495 1496 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1497 "(Ljava/lang/String;Ljava/lang/String;)V")); 1498 1499 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1500 "appendVmSynonymMessage", 1501 "(Ljava/lang/String;Ljava/lang/String;)V")); 1502 NULL_CHECK(vmErgo = (*env)->GetStaticMethodID(env, cls, 1503 "appendVmErgoMessage", "(ZLjava/lang/String;)V")); 1504 1505 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1506 "printHelpMessage", "(Z)V")); 1507 1508 jprogname = (*env)->NewStringUTF(env, _program_name); 1509 1510 /* Initialize the usage message with the usual preamble */ 1511 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1512 1513 1514 /* Assemble the other variant part of the usage */ 1515 if ((knownVMs[0].flag == VM_KNOWN) || 1516 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { 1517 vm1 = (*env)->NewStringUTF(env, knownVMs[0].name); 1518 vm2 = (*env)->NewStringUTF(env, knownVMs[0].name+1); 1519 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1520 } 1521 for (i=1; i<knownVMsCount; i++) { 1522 if (knownVMs[i].flag == VM_KNOWN) { 1523 vm1 = (*env)->NewStringUTF(env, knownVMs[i].name); 1524 vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1); 1525 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1526 } 1527 } 1528 for (i=1; i<knownVMsCount; i++) { 1529 if (knownVMs[i].flag == VM_ALIASED_TO) { 1530 vm1 = (*env)->NewStringUTF(env, knownVMs[i].name); 1531 vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1); 1532 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1533 } 1534 } 1535 1536 /* The first known VM is the default */ 1537 { 1538 jboolean isServerClassMachine = ServerClassMachine(); 1539 1540 const char* defaultVM = knownVMs[0].name+1; 1541 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && isServerClassMachine) { 1542 defaultVM = knownVMs[0].server_class+1; 1543 } 1544 1545 vm1 = (*env)->NewStringUTF(env, defaultVM); 1546 (*env)->CallStaticVoidMethod(env, cls, vmErgo, isServerClassMachine, vm1); 1547 } 1548 1549 /* Complete the usage message and print to stderr*/ 1550 (*env)->CallStaticVoidMethod(env, cls, printHelp, USE_STDERR); 1551 } 1552 return; 1553 } 1554 1555 /* 1556 * Read the jvm.cfg file and fill the knownJVMs[] array. 1557 * 1558 * The functionality of the jvm.cfg file is subject to change without 1559 * notice and the mechanism will be removed in the future. 1560 * 1561 * The lexical structure of the jvm.cfg file is as follows: 1562 * 1563 * jvmcfg := { vmLine } 1564 * vmLine := knownLine 1565 * | aliasLine 1566 * | warnLine 1567 * | ignoreLine 1568 * | errorLine 1569 * | predicateLine 1570 * | commentLine 1571 * knownLine := flag "KNOWN" EOL 1572 * warnLine := flag "WARN" EOL 1573 * ignoreLine := flag "IGNORE" EOL 1574 * errorLine := flag "ERROR" EOL 1575 * aliasLine := flag "ALIASED_TO" flag EOL 1576 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 1577 * commentLine := "#" text EOL 1578 * flag := "-" identifier 1579 * 1580 * The semantics are that when someone specifies a flag on the command line: 1581 * - if the flag appears on a knownLine, then the identifier is used as 1582 * the name of the directory holding the JVM library (the name of the JVM). 1583 * - if the flag appears as the first flag on an aliasLine, the identifier 1584 * of the second flag is used as the name of the JVM. 1585 * - if the flag appears on a warnLine, the identifier is used as the 1586 * name of the JVM, but a warning is generated. 1587 * - if the flag appears on an ignoreLine, the identifier is recognized as the 1588 * name of a JVM, but the identifier is ignored and the default vm used 1589 * - if the flag appears on an errorLine, an error is generated. 1590 * - if the flag appears as the first flag on a predicateLine, and 1591 * the machine on which you are running passes the predicate indicated, 1592 * then the identifier of the second flag is used as the name of the JVM, 1593 * otherwise the identifier of the first flag is used as the name of the JVM. 1594 * If no flag is given on the command line, the first vmLine of the jvm.cfg 1595 * file determines the name of the JVM. 1596 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 1597 * since they only make sense if someone hasn't specified the name of the 1598 * JVM on the command line. 1599 * 1600 * The intent of the jvm.cfg file is to allow several JVM libraries to 1601 * be installed in different subdirectories of a single JRE installation, 1602 * for space-savings and convenience in testing. 1603 * The intent is explicitly not to provide a full aliasing or predicate 1604 * mechanism. 1605 */ 1606 jint 1607 ReadKnownVMs(const char *jrepath, const char * arch, jboolean speculative) 1608 { 1609 FILE *jvmCfg; 1610 char jvmCfgName[MAXPATHLEN+20]; 1611 char line[MAXPATHLEN+20]; 1612 int cnt = 0; 1613 int lineno = 0; 1614 jlong start, end; 1615 int vmType; 1616 char *tmpPtr; 1617 char *altVMName = NULL; 1618 char *serverClassVMName = NULL; 1619 static char *whiteSpace = " \t"; 1620 if (JLI_IsTraceLauncher()) { 1621 start = CounterGet(); 1622 } 1623 JLI_Snprintf(jvmCfgName, sizeof(jvmCfgName), "%s%slib%s%s%sjvm.cfg", 1624 jrepath, FILESEP, FILESEP, arch, FILESEP); 1625 1626 jvmCfg = fopen(jvmCfgName, "r"); 1627 if (jvmCfg == NULL) { 1628 if (!speculative) { 1629 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 1630 exit(1); 1631 } else { 1632 return -1; 1633 } 1634 } 1635 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 1636 vmType = VM_UNKNOWN; 1637 lineno++; 1638 if (line[0] == '#') 1639 continue; 1640 if (line[0] != '-') { 1641 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 1642 } 1643 if (cnt >= knownVMsLimit) { 1644 GrowKnownVMs(cnt); 1645 } 1646 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 1647 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 1648 if (*tmpPtr == 0) { 1649 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1650 } else { 1651 /* Null-terminate this string for JLI_StringDup below */ 1652 *tmpPtr++ = 0; 1653 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1654 if (*tmpPtr == 0) { 1655 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1656 } else { 1657 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 1658 vmType = VM_KNOWN; 1659 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 1660 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1661 if (*tmpPtr != 0) { 1662 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1663 } 1664 if (*tmpPtr == 0) { 1665 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1666 } else { 1667 /* Null terminate altVMName */ 1668 altVMName = tmpPtr; 1669 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1670 *tmpPtr = 0; 1671 vmType = VM_ALIASED_TO; 1672 } 1673 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 1674 vmType = VM_WARN; 1675 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 1676 vmType = VM_IGNORE; 1677 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 1678 vmType = VM_ERROR; 1679 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 1680 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1681 if (*tmpPtr != 0) { 1682 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1683 } 1684 if (*tmpPtr == 0) { 1685 JLI_ReportErrorMessage(CFG_WARN4, lineno, jvmCfgName); 1686 } else { 1687 /* Null terminate server class VM name */ 1688 serverClassVMName = tmpPtr; 1689 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1690 *tmpPtr = 0; 1691 vmType = VM_IF_SERVER_CLASS; 1692 } 1693 } else { 1694 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 1695 vmType = VM_KNOWN; 1696 } 1697 } 1698 } 1699 1700 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 1701 if (vmType != VM_UNKNOWN) { 1702 knownVMs[cnt].name = JLI_StringDup(line); 1703 knownVMs[cnt].flag = vmType; 1704 switch (vmType) { 1705 default: 1706 break; 1707 case VM_ALIASED_TO: 1708 knownVMs[cnt].alias = JLI_StringDup(altVMName); 1709 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 1710 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 1711 break; 1712 case VM_IF_SERVER_CLASS: 1713 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName); 1714 JLI_TraceLauncher(" name: %s vmType: %s server_class: %s\n", 1715 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); 1716 break; 1717 } 1718 cnt++; 1719 } 1720 } 1721 fclose(jvmCfg); 1722 knownVMsCount = cnt; 1723 1724 if (JLI_IsTraceLauncher()) { 1725 end = CounterGet(); 1726 printf("%ld micro seconds to parse jvm.cfg\n", 1727 (long)(jint)Counter2Micros(end-start)); 1728 } 1729 1730 return cnt; 1731 } 1732 1733 1734 static void 1735 GrowKnownVMs(int minimum) 1736 { 1737 struct vmdesc* newKnownVMs; 1738 int newMax; 1739 1740 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 1741 if (newMax <= minimum) { 1742 newMax = minimum; 1743 } 1744 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 1745 if (knownVMs != NULL) { 1746 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 1747 } 1748 JLI_MemFree(knownVMs); 1749 knownVMs = newKnownVMs; 1750 knownVMsLimit = newMax; 1751 } 1752 1753 1754 /* Returns index of VM or -1 if not found */ 1755 static int 1756 KnownVMIndex(const char* name) 1757 { 1758 int i; 1759 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 1760 for (i = 0; i < knownVMsCount; i++) { 1761 if (!JLI_StrCmp(name, knownVMs[i].name)) { 1762 return i; 1763 } 1764 } 1765 return -1; 1766 } 1767 1768 static void 1769 FreeKnownVMs() 1770 { 1771 int i; 1772 for (i = 0; i < knownVMsCount; i++) { 1773 JLI_MemFree(knownVMs[i].name); 1774 knownVMs[i].name = NULL; 1775 } 1776 JLI_MemFree(knownVMs); 1777 } 1778 1779 1780 /* 1781 * Displays the splash screen according to the jar file name 1782 * and image file names stored in environment variables 1783 */ 1784 static void 1785 ShowSplashScreen() 1786 { 1787 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 1788 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 1789 int data_size; 1790 void *image_data; 1791 if (jar_name) { 1792 image_data = JLI_JarUnpackFile(jar_name, file_name, &data_size); 1793 if (image_data) { 1794 DoSplashInit(); 1795 DoSplashLoadMemory(image_data, data_size); 1796 JLI_MemFree(image_data); 1797 } 1798 } else if (file_name) { 1799 DoSplashInit(); 1800 DoSplashLoadFile(file_name); 1801 } else { 1802 return; 1803 } 1804 DoSplashSetFileJarName(file_name, jar_name); 1805 1806 /* 1807 * Done with all command line processing and potential re-execs so 1808 * clean up the environment. 1809 */ 1810 (void)UnsetEnv(ENV_ENTRY); 1811 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 1812 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 1813 1814 JLI_MemFree(splash_jar_entry); 1815 JLI_MemFree(splash_file_entry); 1816 1817 } 1818 1819 const char* 1820 GetDotVersion() 1821 { 1822 return _dVersion; 1823 } 1824 1825 const char* 1826 GetFullVersion() 1827 { 1828 return _fVersion; 1829 } 1830 1831 const char* 1832 GetProgramName() 1833 { 1834 return _program_name; 1835 } 1836 1837 const char* 1838 GetLauncherName() 1839 { 1840 return _launcher_name; 1841 } 1842 1843 jint 1844 GetErgoPolicy() 1845 { 1846 return _ergo_policy; 1847 } 1848 1849 jboolean 1850 IsJavaArgs() 1851 { 1852 return _is_java_args; 1853 } 1854 1855 static jboolean 1856 IsWildCardEnabled() 1857 { 1858 return _wc_enabled; 1859 } 1860 1861 static int 1862 ContinueInNewThread(InvocationFunctions* ifn, int argc, char **argv, 1863 int mode, char *what, int ret) 1864 { 1865 1866 /* 1867 * If user doesn't specify stack size, check if VM has a preference. 1868 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 1869 * return its default stack size through the init args structure. 1870 */ 1871 if (threadStackSize == 0) { 1872 struct JDK1_1InitArgs args1_1; 1873 memset((void*)&args1_1, 0, sizeof(args1_1)); 1874 args1_1.version = JNI_VERSION_1_1; 1875 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 1876 if (args1_1.javaStackSize > 0) { 1877 threadStackSize = args1_1.javaStackSize; 1878 } 1879 } 1880 1881 { /* Create a new thread to create JVM and invoke main method */ 1882 JavaMainArgs args; 1883 int rslt; 1884 1885 args.argc = argc; 1886 args.argv = argv; 1887 args.mode = mode; 1888 args.what = what; 1889 args.ifn = *ifn; 1890 1891 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args); 1892 /* If the caller has deemed there is an error we 1893 * simply return that, otherwise we return the value of 1894 * the callee 1895 */ 1896 return (ret != 0) ? ret : rslt; 1897 } 1898 } 1899 1900 static void 1901 DumpState() 1902 { 1903 if (!JLI_IsTraceLauncher()) return ; 1904 printf("Launcher state:\n"); 1905 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 1906 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 1907 printf("\tprogram name:%s\n", GetProgramName()); 1908 printf("\tlauncher name:%s\n", GetLauncherName()); 1909 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 1910 printf("\tfullversion:%s\n", GetFullVersion()); 1911 printf("\tdotversion:%s\n", GetDotVersion()); 1912 printf("\tergo_policy:"); 1913 switch(GetErgoPolicy()) { 1914 case NEVER_SERVER_CLASS: 1915 printf("NEVER_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 1916 break; 1917 case ALWAYS_SERVER_CLASS: 1918 printf("ALWAYS_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 1919 break; 1920 default: 1921 printf("DEFAULT_ERGONOMICS_POLICY\n"); 1922 } 1923 } 1924 1925 /* 1926 * Return JNI_TRUE for an option string that has no effect but should 1927 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On 1928 * Solaris SPARC, this screening needs to be done if: 1929 * -d32 or -d64 is passed to a binary with an unmatched data model 1930 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the 1931 * exec to the proper binary). In the case of when the data model and the 1932 * requested version is matched, an exec would not occur, and these options 1933 * were erroneously passed to the vm. 1934 */ 1935 jboolean 1936 RemovableOption(char * option) 1937 { 1938 /* 1939 * Unconditionally remove both -d32 and -d64 options since only 1940 * the last such options has an effect; e.g. 1941 * java -d32 -d64 -d32 -version 1942 * is equivalent to 1943 * java -d32 -version 1944 */ 1945 1946 if( (JLI_StrCCmp(option, "-d32") == 0 ) || 1947 (JLI_StrCCmp(option, "-d64") == 0 ) ) 1948 return JNI_TRUE; 1949 else 1950 return JNI_FALSE; 1951 } 1952 1953 /* 1954 * A utility procedure to always print to stderr 1955 */ 1956 void 1957 JLI_ReportMessage(const char* fmt, ...) 1958 { 1959 va_list vl; 1960 va_start(vl, fmt); 1961 vfprintf(stderr, fmt, vl); 1962 fprintf(stderr, "\n"); 1963 va_end(vl); 1964 }