1 /* 2 * Copyright (c) 1995, 2015, 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 void SetJvmEnvironment(int argc, char **argv); 102 static jboolean ParseArguments(int *pargc, char ***pargv, 103 int *pmode, char **pwhat, 104 int *pret, const char *jrepath); 105 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 106 InvocationFunctions *ifn); 107 static jstring NewPlatformString(JNIEnv *env, char *s); 108 static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 109 static jclass GetApplicationClass(JNIEnv *env); 110 111 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 112 static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 113 static void SetApplicationClassPath(const char**); 114 115 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF); 116 static void PrintUsage(JNIEnv* env, jboolean doXUsage); 117 static void ShowSettings(JNIEnv* env, char *optString); 118 119 static void SetPaths(int argc, char **argv); 120 121 static void DumpState(); 122 static jboolean RemovableOption(char *option); 123 124 /* Maximum supported entries from jvm.cfg. */ 125 #define INIT_MAX_KNOWN_VMS 10 126 127 /* Values for vmdesc.flag */ 128 enum vmdesc_flag { 129 VM_UNKNOWN = -1, 130 VM_KNOWN, 131 VM_ALIASED_TO, 132 VM_WARN, 133 VM_ERROR, 134 VM_IF_SERVER_CLASS, 135 VM_IGNORE 136 }; 137 138 struct vmdesc { 139 char *name; 140 int flag; 141 char *alias; 142 char *server_class; 143 }; 144 static struct vmdesc *knownVMs = NULL; 145 static int knownVMsCount = 0; 146 static int knownVMsLimit = 0; 147 148 static void GrowKnownVMs(int minimum); 149 static int KnownVMIndex(const char* name); 150 static void FreeKnownVMs(); 151 static jboolean IsWildCardEnabled(); 152 153 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \ 154 do { \ 155 if (AC_arg_count < 1) { \ 156 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 157 printUsage = JNI_TRUE; \ 158 *pret = 1; \ 159 return JNI_TRUE; \ 160 } \ 161 } while (JNI_FALSE) 162 163 /* 164 * Running Java code in primordial thread caused many problems. We will 165 * create a new thread to invoke JVM. See 6316197 for more information. 166 */ 167 static jlong threadStackSize = 0; /* stack size of the new thread */ 168 static jlong maxHeapSize = 0; /* max heap size */ 169 static jlong initialHeapSize = 0; /* inital heap size */ 170 171 /* 172 * A minimum -Xss stack size suitable for all platforms. 173 */ 174 #ifndef STACK_SIZE_MINIMUM 175 #define STACK_SIZE_MINIMUM (32 * KB) 176 #endif 177 178 /* 179 * Entry point. 180 */ 181 int 182 JLI_Launch(int argc, char ** argv, /* main argc, argc */ 183 int jargc, const char** jargv, /* java args */ 184 int appclassc, const char** appclassv, /* app classpath */ 185 const char* fullversion, /* full version defined */ 186 const char* dotversion, /* dot version defined */ 187 const char* pname, /* program name */ 188 const char* lname, /* launcher name */ 189 jboolean javaargs, /* JAVA_ARGS */ 190 jboolean cpwildcard, /* classpath wildcard*/ 191 jboolean javaw, /* windows-only javaw */ 192 jint ergo /* ergonomics class policy */ 193 ) 194 { 195 int mode = LM_UNKNOWN; 196 char *what = NULL; 197 char *cpath = 0; 198 char *main_class = NULL; 199 int ret; 200 InvocationFunctions ifn; 201 jlong start, end; 202 char jvmpath[MAXPATHLEN]; 203 char jrepath[MAXPATHLEN]; 204 char jvmcfg[MAXPATHLEN]; 205 206 _fVersion = fullversion; 207 _dVersion = dotversion; 208 _launcher_name = lname; 209 _program_name = pname; 210 _is_java_args = javaargs; 211 _wc_enabled = cpwildcard; 212 _ergo_policy = ergo; 213 214 InitLauncher(javaw); 215 DumpState(); 216 if (JLI_IsTraceLauncher()) { 217 int i; 218 printf("Command line args:\n"); 219 for (i = 0; i < argc ; i++) { 220 printf("argv[%d] = %s\n", i, argv[i]); 221 } 222 AddOption("-Dsun.java.launcher.diag=true", NULL); 223 } 224 225 /* 226 * SelectVersion() has several responsibilities: 227 * 228 * 1) Disallow specification of another JRE. With 1.9, another 229 * version of the JRE cannot be invoked. 230 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since 231 * all mJRE directives have been stripped from the request but 232 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been 233 * invoked from the command line. 234 */ 235 SelectVersion(argc, argv, &main_class); 236 237 CreateExecutionEnvironment(&argc, &argv, 238 jrepath, sizeof(jrepath), 239 jvmpath, sizeof(jvmpath), 240 jvmcfg, sizeof(jvmcfg)); 241 242 if (!IsJavaArgs()) { 243 SetJvmEnvironment(argc,argv); 244 } 245 246 ifn.CreateJavaVM = 0; 247 ifn.GetDefaultJavaVMInitArgs = 0; 248 249 if (JLI_IsTraceLauncher()) { 250 start = CounterGet(); 251 } 252 253 if (!LoadJavaVM(jvmpath, &ifn)) { 254 return(6); 255 } 256 257 if (JLI_IsTraceLauncher()) { 258 end = CounterGet(); 259 } 260 261 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", 262 (long)(jint)Counter2Micros(end-start)); 263 264 ++argv; 265 --argc; 266 267 if (IsJavaArgs()) { 268 /* Preprocess wrapper arguments */ 269 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 270 if (!AddApplicationOptions(appclassc, appclassv)) { 271 return(1); 272 } 273 } else { 274 /* Set default CLASSPATH */ 275 cpath = getenv("CLASSPATH"); 276 if (cpath == NULL) { 277 cpath = "."; 278 } 279 SetClassPath(cpath); 280 } 281 282 /* Parse command line options; if the return value of 283 * ParseArguments is false, the program should exit. 284 */ 285 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) 286 { 287 return(ret); 288 } 289 290 /* Override class path if -jar flag was specified */ 291 if (mode == LM_JAR) { 292 SetClassPath(what); /* Override class path */ 293 } 294 295 /* set the -Dsun.java.command pseudo property */ 296 SetJavaCommandLineProp(what, argc, argv); 297 298 /* Set the -Dsun.java.launcher pseudo property */ 299 SetJavaLauncherProp(); 300 301 /* set the -Dsun.java.launcher.* platform properties */ 302 SetJavaLauncherPlatformProps(); 303 304 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); 305 } 306 /* 307 * Always detach the main thread so that it appears to have ended when 308 * the application's main method exits. This will invoke the 309 * uncaught exception handler machinery if main threw an 310 * exception. An uncaught exception handler cannot change the 311 * launcher's return code except by calling System.exit. 312 * 313 * Wait for all non-daemon threads to end, then destroy the VM. 314 * This will actually create a trivial new Java waiter thread 315 * named "DestroyJavaVM", but this will be seen as a different 316 * thread from the one that executed main, even though they are 317 * the same C thread. This allows mainThread.join() and 318 * mainThread.isAlive() to work as expected. 319 */ 320 #define LEAVE() \ 321 do { \ 322 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \ 323 JLI_ReportErrorMessage(JVM_ERROR2); \ 324 ret = 1; \ 325 } \ 326 if (JNI_TRUE) { \ 327 (*vm)->DestroyJavaVM(vm); \ 328 return ret; \ 329 } \ 330 } while (JNI_FALSE) 331 332 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \ 333 do { \ 334 if ((*env)->ExceptionOccurred(env)) { \ 335 JLI_ReportExceptionDescription(env); \ 336 LEAVE(); \ 337 } \ 338 if ((CENL_exception) == NULL) { \ 339 JLI_ReportErrorMessage(JNI_ERROR); \ 340 LEAVE(); \ 341 } \ 342 } while (JNI_FALSE) 343 344 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \ 345 do { \ 346 if ((*env)->ExceptionOccurred(env)) { \ 347 JLI_ReportExceptionDescription(env); \ 348 ret = (CEL_return_value); \ 349 LEAVE(); \ 350 } \ 351 } while (JNI_FALSE) 352 353 354 int JNICALL 355 JavaMain(void * _args) 356 { 357 JavaMainArgs *args = (JavaMainArgs *)_args; 358 int argc = args->argc; 359 char **argv = args->argv; 360 int mode = args->mode; 361 char *what = args->what; 362 InvocationFunctions ifn = args->ifn; 363 364 JavaVM *vm = 0; 365 JNIEnv *env = 0; 366 jclass mainClass = NULL; 367 jclass appClass = NULL; // actual application class being launched 368 jmethodID mainID; 369 jobjectArray mainArgs; 370 int ret = 0; 371 jlong start, end; 372 373 RegisterThread(); 374 375 /* Initialize the virtual machine */ 376 start = CounterGet(); 377 if (!InitializeJVM(&vm, &env, &ifn)) { 378 JLI_ReportErrorMessage(JVM_ERROR1); 379 exit(1); 380 } 381 382 if (showSettings != NULL) { 383 ShowSettings(env, showSettings); 384 CHECK_EXCEPTION_LEAVE(1); 385 } 386 387 if (printVersion || showVersion) { 388 PrintJavaVersion(env, showVersion); 389 CHECK_EXCEPTION_LEAVE(0); 390 if (printVersion) { 391 LEAVE(); 392 } 393 } 394 395 /* If the user specified neither a class name nor a JAR file */ 396 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 397 PrintUsage(env, printXUsage); 398 CHECK_EXCEPTION_LEAVE(1); 399 LEAVE(); 400 } 401 402 FreeKnownVMs(); /* after last possible PrintUsage() */ 403 404 if (JLI_IsTraceLauncher()) { 405 end = CounterGet(); 406 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 407 (long)(jint)Counter2Micros(end-start)); 408 } 409 410 /* At this stage, argc/argv have the application's arguments */ 411 if (JLI_IsTraceLauncher()){ 412 int i; 413 printf("%s is '%s'\n", launchModeNames[mode], what); 414 printf("App's argc is %d\n", argc); 415 for (i=0; i < argc; i++) { 416 printf(" argv[%2d] = '%s'\n", i, argv[i]); 417 } 418 } 419 420 ret = 1; 421 422 /* 423 * Get the application's main class. 424 * 425 * See bugid 5030265. The Main-Class name has already been parsed 426 * from the manifest, but not parsed properly for UTF-8 support. 427 * Hence the code here ignores the value previously extracted and 428 * uses the pre-existing code to reextract the value. This is 429 * possibly an end of release cycle expedient. However, it has 430 * also been discovered that passing some character sets through 431 * the environment has "strange" behavior on some variants of 432 * Windows. Hence, maybe the manifest parsing code local to the 433 * launcher should never be enhanced. 434 * 435 * Hence, future work should either: 436 * 1) Correct the local parsing code and verify that the 437 * Main-Class attribute gets properly passed through 438 * all environments, 439 * 2) Remove the vestages of maintaining main_class through 440 * the environment (and remove these comments). 441 * 442 * This method also correctly handles launching existing JavaFX 443 * applications that may or may not have a Main-Class manifest entry. 444 */ 445 mainClass = LoadMainClass(env, mode, what); 446 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 447 /* 448 * In some cases when launching an application that needs a helper, e.g., a 449 * JavaFX application with no main method, the mainClass will not be the 450 * applications own main class but rather a helper class. To keep things 451 * consistent in the UI we need to track and report the application main class. 452 */ 453 appClass = GetApplicationClass(env); 454 NULL_CHECK_RETURN_VALUE(appClass, -1); 455 /* 456 * PostJVMInit uses the class name as the application name for GUI purposes, 457 * for example, on OSX this sets the application name in the menu bar for 458 * both SWT and JavaFX. So we'll pass the actual application class here 459 * instead of mainClass as that may be a launcher or helper class instead 460 * of the application class. 461 */ 462 PostJVMInit(env, appClass, vm); 463 CHECK_EXCEPTION_LEAVE(1); 464 /* 465 * The LoadMainClass not only loads the main class, it will also ensure 466 * that the main method's signature is correct, therefore further checking 467 * is not required. The main method is invoked here so that extraneous java 468 * stacks are not in the application stack trace. 469 */ 470 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 471 "([Ljava/lang/String;)V"); 472 CHECK_EXCEPTION_NULL_LEAVE(mainID); 473 474 /* Build platform specific argument array */ 475 mainArgs = CreateApplicationArgs(env, argv, argc); 476 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 477 478 /* Invoke main method. */ 479 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 480 481 /* 482 * The launcher's exit code (in the absence of calls to 483 * System.exit) will be non-zero if main threw an exception. 484 */ 485 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 486 LEAVE(); 487 } 488 489 /* 490 * Checks the command line options to find which JVM type was 491 * specified. If no command line option was given for the JVM type, 492 * the default type is used. The environment variable 493 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 494 * checked as ways of specifying which JVM type to invoke. 495 */ 496 char * 497 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 498 int i, argi; 499 int argc; 500 char **newArgv; 501 int newArgvIdx = 0; 502 int isVMType; 503 int jvmidx = -1; 504 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 505 506 argc = *pargc; 507 508 /* To make things simpler we always copy the argv array */ 509 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 510 511 /* The program name is always present */ 512 newArgv[newArgvIdx++] = (*argv)[0]; 513 514 for (argi = 1; argi < argc; argi++) { 515 char *arg = (*argv)[argi]; 516 isVMType = 0; 517 518 if (IsJavaArgs()) { 519 if (arg[0] != '-') { 520 newArgv[newArgvIdx++] = arg; 521 continue; 522 } 523 } else { 524 if (JLI_StrCmp(arg, "-classpath") == 0 || 525 JLI_StrCmp(arg, "-cp") == 0) { 526 newArgv[newArgvIdx++] = arg; 527 argi++; 528 if (argi < argc) { 529 newArgv[newArgvIdx++] = (*argv)[argi]; 530 } 531 continue; 532 } 533 if (arg[0] != '-') break; 534 } 535 536 /* Did the user pass an explicit VM type? */ 537 i = KnownVMIndex(arg); 538 if (i >= 0) { 539 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 540 isVMType = 1; 541 *pargc = *pargc - 1; 542 } 543 544 /* Did the user specify an "alternate" VM? */ 545 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 546 isVMType = 1; 547 jvmtype = arg+((arg[1]=='X')? 10 : 12); 548 jvmidx = -1; 549 } 550 551 if (!isVMType) { 552 newArgv[newArgvIdx++] = arg; 553 } 554 } 555 556 /* 557 * Finish copying the arguments if we aborted the above loop. 558 * NOTE that if we aborted via "break" then we did NOT copy the 559 * last argument above, and in addition argi will be less than 560 * argc. 561 */ 562 while (argi < argc) { 563 newArgv[newArgvIdx++] = (*argv)[argi]; 564 argi++; 565 } 566 567 /* argv is null-terminated */ 568 newArgv[newArgvIdx] = 0; 569 570 /* Copy back argv */ 571 *argv = newArgv; 572 *pargc = newArgvIdx; 573 574 /* use the default VM type if not specified (no alias processing) */ 575 if (jvmtype == NULL) { 576 char* result = knownVMs[0].name+1; 577 /* Use a different VM type if we are on a server class machine? */ 578 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && 579 (ServerClassMachine() == JNI_TRUE)) { 580 result = knownVMs[0].server_class+1; 581 } 582 JLI_TraceLauncher("Default VM: %s\n", result); 583 return result; 584 } 585 586 /* if using an alternate VM, no alias processing */ 587 if (jvmidx < 0) 588 return jvmtype; 589 590 /* Resolve aliases first */ 591 { 592 int loopCount = 0; 593 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 594 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 595 596 if (loopCount > knownVMsCount) { 597 if (!speculative) { 598 JLI_ReportErrorMessage(CFG_ERROR1); 599 exit(1); 600 } else { 601 return "ERROR"; 602 /* break; */ 603 } 604 } 605 606 if (nextIdx < 0) { 607 if (!speculative) { 608 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 609 exit(1); 610 } else { 611 return "ERROR"; 612 } 613 } 614 jvmidx = nextIdx; 615 jvmtype = knownVMs[jvmidx].name+1; 616 loopCount++; 617 } 618 } 619 620 switch (knownVMs[jvmidx].flag) { 621 case VM_WARN: 622 if (!speculative) { 623 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 624 } 625 /* fall through */ 626 case VM_IGNORE: 627 jvmtype = knownVMs[jvmidx=0].name + 1; 628 /* fall through */ 629 case VM_KNOWN: 630 break; 631 case VM_ERROR: 632 if (!speculative) { 633 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 634 exit(1); 635 } else { 636 return "ERROR"; 637 } 638 } 639 640 return jvmtype; 641 } 642 643 /* 644 * static void SetJvmEnvironment(int argc, char **argv); 645 * Is called just before the JVM is loaded. We can set env variables 646 * that are consumed by the JVM. This function is non-destructive, 647 * leaving the arg list intact. The first use is for the JVM flag 648 * -XX:NativeMemoryTracking=value. 649 */ 650 static void 651 SetJvmEnvironment(int argc, char **argv) { 652 653 static const char* NMT_Env_Name = "NMT_LEVEL_"; 654 int i; 655 for (i = 0; i < argc; i++) { 656 char *arg = argv[i]; 657 /* 658 * Since this must be a VM flag we stop processing once we see 659 * an argument the launcher would not have processed beyond (such 660 * as -version or -h), or an argument that indicates the following 661 * arguments are for the application (i.e. the main class name, or 662 * the -jar argument). 663 */ 664 if (i > 0) { 665 char *prev = argv[i - 1]; 666 // skip non-dash arg preceded by class path specifiers 667 if (*arg != '-' && 668 ((JLI_StrCmp(prev, "-cp") == 0 669 || JLI_StrCmp(prev, "-classpath") == 0))) { 670 continue; 671 } 672 673 if (*arg != '-' 674 || JLI_StrCmp(arg, "-version") == 0 675 || JLI_StrCmp(arg, "-fullversion") == 0 676 || JLI_StrCmp(arg, "-help") == 0 677 || JLI_StrCmp(arg, "-?") == 0 678 || JLI_StrCmp(arg, "-jar") == 0 679 || JLI_StrCmp(arg, "-X") == 0) { 680 return; 681 } 682 } 683 /* 684 * The following case checks for "-XX:NativeMemoryTracking=value". 685 * If value is non null, an environmental variable set to this value 686 * will be created to be used by the JVM. 687 * The argument is passed to the JVM, which will check validity. 688 * The JVM is responsible for removing the env variable. 689 */ 690 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { 691 int retval; 692 // get what follows this parameter, include "=" 693 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); 694 if (JLI_StrLen(arg) > pnlen) { 695 char* value = arg + pnlen; 696 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits 697 698 /* 699 * ensures that malloc successful 700 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call 701 * that could store the address. 702 */ 703 char * pbuf = (char*)JLI_MemAlloc(pbuflen); 704 705 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); 706 retval = JLI_PutEnv(pbuf); 707 if (JLI_IsTraceLauncher()) { 708 char* envName; 709 char* envBuf; 710 711 // ensures that malloc successful 712 envName = (char*)JLI_MemAlloc(pbuflen); 713 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); 714 715 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); 716 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); 717 envBuf = getenv(envName); 718 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); 719 free(envName); 720 } 721 722 } 723 724 } 725 726 } 727 } 728 729 /* copied from HotSpot function "atomll()" */ 730 static int 731 parse_size(const char *s, jlong *result) { 732 jlong n = 0; 733 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n); 734 if (args_read != 1) { 735 return 0; 736 } 737 while (*s != '\0' && *s >= '0' && *s <= '9') { 738 s++; 739 } 740 // 4705540: illegal if more characters are found after the first non-digit 741 if (JLI_StrLen(s) > 1) { 742 return 0; 743 } 744 switch (*s) { 745 case 'T': case 't': 746 *result = n * GB * KB; 747 return 1; 748 case 'G': case 'g': 749 *result = n * GB; 750 return 1; 751 case 'M': case 'm': 752 *result = n * MB; 753 return 1; 754 case 'K': case 'k': 755 *result = n * KB; 756 return 1; 757 case '\0': 758 *result = n; 759 return 1; 760 default: 761 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 762 return 0; 763 } 764 } 765 766 /* 767 * Adds a new VM option with the given name and value. 768 */ 769 void 770 AddOption(char *str, void *info) 771 { 772 /* 773 * Expand options array if needed to accommodate at least one more 774 * VM option. 775 */ 776 if (numOptions >= maxOptions) { 777 if (options == 0) { 778 maxOptions = 4; 779 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 780 } else { 781 JavaVMOption *tmp; 782 maxOptions *= 2; 783 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 784 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 785 JLI_MemFree(options); 786 options = tmp; 787 } 788 } 789 options[numOptions].optionString = str; 790 options[numOptions++].extraInfo = info; 791 792 if (JLI_StrCCmp(str, "-Xss") == 0) { 793 jlong tmp; 794 if (parse_size(str + 4, &tmp)) { 795 threadStackSize = tmp; 796 /* 797 * Make sure the thread stack size is big enough that we won't get a stack 798 * overflow before the JVM startup code can check to make sure the stack 799 * is big enough. 800 */ 801 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) { 802 threadStackSize = STACK_SIZE_MINIMUM; 803 } 804 } 805 } 806 807 if (JLI_StrCCmp(str, "-Xmx") == 0) { 808 jlong tmp; 809 if (parse_size(str + 4, &tmp)) { 810 maxHeapSize = tmp; 811 } 812 } 813 814 if (JLI_StrCCmp(str, "-Xms") == 0) { 815 jlong tmp; 816 if (parse_size(str + 4, &tmp)) { 817 initialHeapSize = tmp; 818 } 819 } 820 } 821 822 static void 823 SetClassPath(const char *s) 824 { 825 char *def; 826 const char *orig = s; 827 static const char format[] = "-Djava.class.path=%s"; 828 /* 829 * usually we should not get a null pointer, but there are cases where 830 * we might just get one, in which case we simply ignore it, and let the 831 * caller deal with it 832 */ 833 if (s == NULL) 834 return; 835 s = JLI_WildcardExpandClasspath(s); 836 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 837 // s is became corrupted after expanding wildcards 838 return; 839 def = JLI_MemAlloc(sizeof(format) 840 - 2 /* strlen("%s") */ 841 + JLI_StrLen(s)); 842 sprintf(def, format, s); 843 AddOption(def, NULL); 844 if (s != orig) 845 JLI_MemFree((char *) s); 846 } 847 848 /* 849 * The SelectVersion() routine ensures that an appropriate version of 850 * the JRE is running. The specification for the appropriate version 851 * is obtained from either the manifest of a jar file (preferred) or 852 * from command line options. 853 * The routine also parses splash screen command line options and 854 * passes on their values in private environment variables. 855 */ 856 static void 857 SelectVersion(int argc, char **argv, char **main_class) 858 { 859 char *arg; 860 char *operand; 861 char *version = NULL; 862 char *jre = NULL; 863 int jarflag = 0; 864 int headlessflag = 0; 865 int restrict_search = -1; /* -1 implies not known */ 866 manifest_info info; 867 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 868 char *splash_file_name = NULL; 869 char *splash_jar_name = NULL; 870 char *env_in; 871 int res; 872 873 /* 874 * If the version has already been selected, set *main_class 875 * with the value passed through the environment (if any) and 876 * simply return. 877 */ 878 879 /* 880 * This environmental variable can be set by mJRE capable JREs 881 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been 882 * stripped by those JREs. This environmental variable allows 1.9+ 883 * JREs to be started by these mJRE capable JREs. 884 * Note that mJRE directives in the jar manifest file would have been 885 * ignored for a JRE started by another JRE... 886 * .. skipped for JRE 1.5 and beyond. 887 * .. not even checked for pre 1.5. 888 */ 889 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 890 if (*env_in != '\0') 891 *main_class = JLI_StringDup(env_in); 892 return; 893 } 894 895 /* 896 * Scan through the arguments for options relevant to multiple JRE 897 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8. 898 * 899 * This capability is no longer available with JRE versions 1.9 and later. 900 * These command line options are reported as errors. 901 */ 902 argc--; 903 argv++; 904 while ((arg = *argv) != 0 && *arg == '-') { 905 if (JLI_StrCCmp(arg, "-version:") == 0) { 906 JLI_ReportErrorMessage(SPC_ERROR1); 907 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 908 JLI_ReportErrorMessage(SPC_ERROR2); 909 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) { 910 JLI_ReportErrorMessage(SPC_ERROR2); 911 } else { 912 if (JLI_StrCmp(arg, "-jar") == 0) 913 jarflag = 1; 914 /* deal with "unfortunate" classpath syntax */ 915 if ((JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) && 916 (argc >= 2)) { 917 argc--; 918 argv++; 919 arg = *argv; 920 } 921 922 /* 923 * Checking for headless toolkit option in the some way as AWT does: 924 * "true" means true and any other value means false 925 */ 926 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 927 headlessflag = 1; 928 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 929 headlessflag = 0; 930 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 931 splash_file_name = arg+8; 932 } 933 } 934 argc--; 935 argv++; 936 } 937 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 938 operand = NULL; 939 } else { 940 argc--; 941 operand = *argv++; 942 } 943 944 /* 945 * If there is a jar file, read the manifest. If the jarfile can't be 946 * read, the manifest can't be read from the jar file, or the manifest 947 * is corrupt, issue the appropriate error messages and exit. 948 * 949 * Even if there isn't a jar file, construct a manifest_info structure 950 * containing the command line information. It's a convenient way to carry 951 * this data around. 952 */ 953 if (jarflag && operand) { 954 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 955 if (res == -1) 956 JLI_ReportErrorMessage(JAR_ERROR2, operand); 957 else 958 JLI_ReportErrorMessage(JAR_ERROR3, operand); 959 exit(1); 960 } 961 962 /* 963 * Command line splash screen option should have precedence 964 * over the manifest, so the manifest data is used only if 965 * splash_file_name has not been initialized above during command 966 * line parsing 967 */ 968 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 969 splash_file_name = info.splashscreen_image_file_name; 970 splash_jar_name = operand; 971 } 972 } else { 973 info.manifest_version = NULL; 974 info.main_class = NULL; 975 info.jre_version = NULL; 976 info.jre_restrict_search = 0; 977 } 978 979 /* 980 * Passing on splash screen info in environment variables 981 */ 982 if (splash_file_name && !headlessflag) { 983 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 984 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 985 JLI_StrCat(splash_file_entry, splash_file_name); 986 putenv(splash_file_entry); 987 } 988 if (splash_jar_name && !headlessflag) { 989 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 990 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 991 JLI_StrCat(splash_jar_entry, splash_jar_name); 992 putenv(splash_jar_entry); 993 } 994 995 996 /* 997 * "Valid" returns (other than unrecoverable errors) follow. Set 998 * main_class as a side-effect of this routine. 999 */ 1000 if (info.main_class != NULL) 1001 *main_class = JLI_StringDup(info.main_class); 1002 1003 if (info.jre_version == NULL) { 1004 JLI_FreeManifest(); 1005 return; 1006 } 1007 1008 } 1009 1010 /* 1011 * Parses command line arguments. Returns JNI_FALSE if launcher 1012 * should exit without starting vm, returns JNI_TRUE if vm needs 1013 * to be started to process given options. *pret (the launcher 1014 * process return value) is set to 0 for a normal exit. 1015 */ 1016 static jboolean 1017 ParseArguments(int *pargc, char ***pargv, 1018 int *pmode, char **pwhat, 1019 int *pret, const char *jrepath) 1020 { 1021 int argc = *pargc; 1022 char **argv = *pargv; 1023 int mode = LM_UNKNOWN; 1024 char *arg; 1025 1026 *pret = 0; 1027 1028 while ((arg = *argv) != 0 && *arg == '-') { 1029 argv++; --argc; 1030 if (JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) { 1031 ARG_CHECK (argc, ARG_ERROR1, arg); 1032 SetClassPath(*argv); 1033 mode = LM_CLASS; 1034 argv++; --argc; 1035 } else if (JLI_StrCmp(arg, "-jar") == 0) { 1036 ARG_CHECK (argc, ARG_ERROR2, arg); 1037 mode = LM_JAR; 1038 } else if (JLI_StrCmp(arg, "-help") == 0 || 1039 JLI_StrCmp(arg, "-h") == 0 || 1040 JLI_StrCmp(arg, "-?") == 0) { 1041 printUsage = JNI_TRUE; 1042 return JNI_TRUE; 1043 } else if (JLI_StrCmp(arg, "-version") == 0) { 1044 printVersion = JNI_TRUE; 1045 return JNI_TRUE; 1046 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1047 showVersion = JNI_TRUE; 1048 } else if (JLI_StrCmp(arg, "-X") == 0) { 1049 printXUsage = JNI_TRUE; 1050 return JNI_TRUE; 1051 /* 1052 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1053 * In the latter case, any SUBOPT value not recognized will default to "all" 1054 */ 1055 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1056 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1057 showSettings = arg; 1058 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1059 AddOption("-Dsun.java.launcher.diag=true", NULL); 1060 /* 1061 * The following case provide backward compatibility with old-style 1062 * command line options. 1063 */ 1064 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1065 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1066 return JNI_FALSE; 1067 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1068 AddOption("-verbose:gc", NULL); 1069 } else if (JLI_StrCmp(arg, "-t") == 0) { 1070 AddOption("-Xt", NULL); 1071 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1072 AddOption("-Xtm", NULL); 1073 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1074 AddOption("-Xdebug", NULL); 1075 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1076 AddOption("-Xnoclassgc", NULL); 1077 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1078 AddOption("-Xverify:all", NULL); 1079 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1080 AddOption("-Xverify:all", NULL); 1081 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1082 AddOption("-Xverify:remote", NULL); 1083 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1084 AddOption("-Xverify:none", NULL); 1085 } else if (JLI_StrCCmp(arg, "-prof") == 0) { 1086 char *p = arg + 5; 1087 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 50); 1088 if (*p) { 1089 sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1); 1090 } else { 1091 sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof"); 1092 } 1093 AddOption(tmp, NULL); 1094 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1095 JLI_StrCCmp(arg, "-oss") == 0 || 1096 JLI_StrCCmp(arg, "-ms") == 0 || 1097 JLI_StrCCmp(arg, "-mx") == 0) { 1098 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1099 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1100 AddOption(tmp, NULL); 1101 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1102 JLI_StrCmp(arg, "-cs") == 0 || 1103 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1104 /* No longer supported */ 1105 JLI_ReportErrorMessage(ARG_WARN, arg); 1106 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1107 ; /* Ignore machine independent options already handled */ 1108 } else if (ProcessPlatformOption(arg)) { 1109 ; /* Processing of platform dependent options */ 1110 } else if (RemovableOption(arg)) { 1111 ; /* Do not pass option to vm. */ 1112 } else { 1113 AddOption(arg, NULL); 1114 } 1115 } 1116 1117 if (--argc >= 0) { 1118 *pwhat = *argv++; 1119 } 1120 1121 if (*pwhat == NULL) { 1122 *pret = 1; 1123 } else if (mode == LM_UNKNOWN) { 1124 /* default to LM_CLASS if -jar and -cp option are 1125 * not specified */ 1126 mode = LM_CLASS; 1127 } 1128 1129 if (argc >= 0) { 1130 *pargc = argc; 1131 *pargv = argv; 1132 } 1133 1134 *pmode = mode; 1135 1136 return JNI_TRUE; 1137 } 1138 1139 /* 1140 * Initializes the Java Virtual Machine. Also frees options array when 1141 * finished. 1142 */ 1143 static jboolean 1144 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1145 { 1146 JavaVMInitArgs args; 1147 jint r; 1148 1149 memset(&args, 0, sizeof(args)); 1150 args.version = JNI_VERSION_1_2; 1151 args.nOptions = numOptions; 1152 args.options = options; 1153 args.ignoreUnrecognized = JNI_FALSE; 1154 1155 if (JLI_IsTraceLauncher()) { 1156 int i = 0; 1157 printf("JavaVM args:\n "); 1158 printf("version 0x%08lx, ", (long)args.version); 1159 printf("ignoreUnrecognized is %s, ", 1160 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1161 printf("nOptions is %ld\n", (long)args.nOptions); 1162 for (i = 0; i < numOptions; i++) 1163 printf(" option[%2d] = '%s'\n", 1164 i, args.options[i].optionString); 1165 } 1166 1167 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1168 JLI_MemFree(options); 1169 return r == JNI_OK; 1170 } 1171 1172 static jclass helperClass = NULL; 1173 1174 jclass 1175 GetLauncherHelperClass(JNIEnv *env) 1176 { 1177 if (helperClass == NULL) { 1178 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1179 "sun/launcher/LauncherHelper")); 1180 } 1181 return helperClass; 1182 } 1183 1184 static jmethodID makePlatformStringMID = NULL; 1185 /* 1186 * Returns a new Java string object for the specified platform string. 1187 */ 1188 static jstring 1189 NewPlatformString(JNIEnv *env, char *s) 1190 { 1191 int len = (int)JLI_StrLen(s); 1192 jbyteArray ary; 1193 jclass cls = GetLauncherHelperClass(env); 1194 NULL_CHECK0(cls); 1195 if (s == NULL) 1196 return 0; 1197 1198 ary = (*env)->NewByteArray(env, len); 1199 if (ary != 0) { 1200 jstring str = 0; 1201 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1202 if (!(*env)->ExceptionOccurred(env)) { 1203 if (makePlatformStringMID == NULL) { 1204 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1205 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1206 } 1207 str = (*env)->CallStaticObjectMethod(env, cls, 1208 makePlatformStringMID, USE_STDERR, ary); 1209 (*env)->DeleteLocalRef(env, ary); 1210 return str; 1211 } 1212 } 1213 return 0; 1214 } 1215 1216 /* 1217 * Returns a new array of Java string objects for the specified 1218 * array of platform strings. 1219 */ 1220 jobjectArray 1221 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1222 { 1223 jarray cls; 1224 jarray ary; 1225 int i; 1226 1227 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1228 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1229 for (i = 0; i < strc; i++) { 1230 jstring str = NewPlatformString(env, *strv++); 1231 NULL_CHECK0(str); 1232 (*env)->SetObjectArrayElement(env, ary, i, str); 1233 (*env)->DeleteLocalRef(env, str); 1234 } 1235 return ary; 1236 } 1237 1238 /* 1239 * Loads a class and verifies that the main class is present and it is ok to 1240 * call it for more details refer to the java implementation. 1241 */ 1242 static jclass 1243 LoadMainClass(JNIEnv *env, int mode, char *name) 1244 { 1245 jmethodID mid; 1246 jstring str; 1247 jobject result; 1248 jlong start, end; 1249 jclass cls = GetLauncherHelperClass(env); 1250 NULL_CHECK0(cls); 1251 if (JLI_IsTraceLauncher()) { 1252 start = CounterGet(); 1253 } 1254 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1255 "checkAndLoadMain", 1256 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1257 1258 NULL_CHECK0(str = NewPlatformString(env, name)); 1259 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1260 USE_STDERR, mode, str)); 1261 1262 if (JLI_IsTraceLauncher()) { 1263 end = CounterGet(); 1264 printf("%ld micro seconds to load main class\n", 1265 (long)(jint)Counter2Micros(end-start)); 1266 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1267 } 1268 1269 return (jclass)result; 1270 } 1271 1272 static jclass 1273 GetApplicationClass(JNIEnv *env) 1274 { 1275 jmethodID mid; 1276 jclass cls = GetLauncherHelperClass(env); 1277 NULL_CHECK0(cls); 1278 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1279 "getApplicationClass", 1280 "()Ljava/lang/Class;")); 1281 1282 return (*env)->CallStaticObjectMethod(env, cls, mid); 1283 } 1284 1285 /* 1286 * For tools, convert command line args thus: 1287 * javac -cp foo:foo/"*" -J-ms32m ... 1288 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1289 * 1290 * Takes 4 parameters, and returns the populated arguments 1291 */ 1292 static void 1293 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1294 { 1295 int argc = *pargc; 1296 char **argv = *pargv; 1297 int nargc = argc + jargc; 1298 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1299 int i; 1300 1301 *pargc = nargc; 1302 *pargv = nargv; 1303 1304 /* Copy the VM arguments (i.e. prefixed with -J) */ 1305 for (i = 0; i < jargc; i++) { 1306 const char *arg = jargv[i]; 1307 if (arg[0] == '-' && arg[1] == 'J') { 1308 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1309 } 1310 } 1311 1312 for (i = 0; i < argc; i++) { 1313 char *arg = argv[i]; 1314 if (arg[0] == '-' && arg[1] == 'J') { 1315 if (arg[2] == '\0') { 1316 JLI_ReportErrorMessage(ARG_ERROR3); 1317 exit(1); 1318 } 1319 *nargv++ = arg + 2; 1320 } 1321 } 1322 1323 /* Copy the rest of the arguments */ 1324 for (i = 0; i < jargc ; i++) { 1325 const char *arg = jargv[i]; 1326 if (arg[0] != '-' || arg[1] != 'J') { 1327 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1328 } 1329 } 1330 for (i = 0; i < argc; i++) { 1331 char *arg = argv[i]; 1332 if (arg[0] == '-') { 1333 if (arg[1] == 'J') 1334 continue; 1335 if (IsWildCardEnabled() && arg[1] == 'c' 1336 && (JLI_StrCmp(arg, "-cp") == 0 || 1337 JLI_StrCmp(arg, "-classpath") == 0) 1338 && i < argc - 1) { 1339 *nargv++ = arg; 1340 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1341 i++; 1342 continue; 1343 } 1344 } 1345 *nargv++ = arg; 1346 } 1347 *nargv = 0; 1348 } 1349 1350 /* 1351 * For our tools, we try to add 3 VM options: 1352 * -Denv.class.path=<envcp> 1353 * -Dapplication.home=<apphome> 1354 * -Djava.class.path=<appcp> 1355 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1356 * tells javac where to find binary classes through this environment 1357 * variable. Notice that users will be able to compile against our 1358 * tools classes (sun.tools.javac.Main) only if they explicitly add 1359 * tools.jar to CLASSPATH. 1360 * <apphome> is the directory where the application is installed. 1361 * <appcp> is the classpath to where our apps' classfiles are. 1362 */ 1363 static jboolean 1364 AddApplicationOptions(int cpathc, const char **cpathv) 1365 { 1366 char *envcp, *appcp, *apphome; 1367 char home[MAXPATHLEN]; /* application home */ 1368 char separator[] = { PATH_SEPARATOR, '\0' }; 1369 int size, i; 1370 1371 { 1372 const char *s = getenv("CLASSPATH"); 1373 if (s) { 1374 s = (char *) JLI_WildcardExpandClasspath(s); 1375 /* 40 for -Denv.class.path= */ 1376 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1377 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1378 sprintf(envcp, "-Denv.class.path=%s", s); 1379 AddOption(envcp, NULL); 1380 } 1381 } 1382 } 1383 1384 if (!GetApplicationHome(home, sizeof(home))) { 1385 JLI_ReportErrorMessage(CFG_ERROR5); 1386 return JNI_FALSE; 1387 } 1388 1389 /* 40 for '-Dapplication.home=' */ 1390 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1391 sprintf(apphome, "-Dapplication.home=%s", home); 1392 AddOption(apphome, NULL); 1393 1394 /* How big is the application's classpath? */ 1395 size = 40; /* 40: "-Djava.class.path=" */ 1396 for (i = 0; i < cpathc; i++) { 1397 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1398 } 1399 appcp = (char *)JLI_MemAlloc(size + 1); 1400 JLI_StrCpy(appcp, "-Djava.class.path="); 1401 for (i = 0; i < cpathc; i++) { 1402 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1403 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1404 JLI_StrCat(appcp, separator); /* ; */ 1405 } 1406 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1407 AddOption(appcp, NULL); 1408 return JNI_TRUE; 1409 } 1410 1411 /* 1412 * inject the -Dsun.java.command pseudo property into the args structure 1413 * this pseudo property is used in the HotSpot VM to expose the 1414 * Java class name and arguments to the main method to the VM. The 1415 * HotSpot VM uses this pseudo property to store the Java class name 1416 * (or jar file name) and the arguments to the class's main method 1417 * to the instrumentation memory region. The sun.java.command pseudo 1418 * property is not exported by HotSpot to the Java layer. 1419 */ 1420 void 1421 SetJavaCommandLineProp(char *what, int argc, char **argv) 1422 { 1423 1424 int i = 0; 1425 size_t len = 0; 1426 char* javaCommand = NULL; 1427 char* dashDstr = "-Dsun.java.command="; 1428 1429 if (what == NULL) { 1430 /* unexpected, one of these should be set. just return without 1431 * setting the property 1432 */ 1433 return; 1434 } 1435 1436 /* determine the amount of memory to allocate assuming 1437 * the individual components will be space separated 1438 */ 1439 len = JLI_StrLen(what); 1440 for (i = 0; i < argc; i++) { 1441 len += JLI_StrLen(argv[i]) + 1; 1442 } 1443 1444 /* allocate the memory */ 1445 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1446 1447 /* build the -D string */ 1448 *javaCommand = '\0'; 1449 JLI_StrCat(javaCommand, dashDstr); 1450 JLI_StrCat(javaCommand, what); 1451 1452 for (i = 0; i < argc; i++) { 1453 /* the components of the string are space separated. In 1454 * the case of embedded white space, the relationship of 1455 * the white space separated components to their true 1456 * positional arguments will be ambiguous. This issue may 1457 * be addressed in a future release. 1458 */ 1459 JLI_StrCat(javaCommand, " "); 1460 JLI_StrCat(javaCommand, argv[i]); 1461 } 1462 1463 AddOption(javaCommand, NULL); 1464 } 1465 1466 /* 1467 * JVM would like to know if it's created by a standard Sun launcher, or by 1468 * user native application, the following property indicates the former. 1469 */ 1470 void 1471 SetJavaLauncherProp() { 1472 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1473 } 1474 1475 /* 1476 * Prints the version information from the java.version and other properties. 1477 */ 1478 static void 1479 PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1480 { 1481 jclass ver; 1482 jmethodID print; 1483 1484 NULL_CHECK(ver = FindBootStrapClass(env, "sun/misc/Version")); 1485 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1486 ver, 1487 (extraLF == JNI_TRUE) ? "println" : "print", 1488 "()V" 1489 ) 1490 ); 1491 1492 (*env)->CallStaticVoidMethod(env, ver, print); 1493 } 1494 1495 /* 1496 * Prints all the Java settings, see the java implementation for more details. 1497 */ 1498 static void 1499 ShowSettings(JNIEnv *env, char *optString) 1500 { 1501 jmethodID showSettingsID; 1502 jstring joptString; 1503 jclass cls = GetLauncherHelperClass(env); 1504 NULL_CHECK(cls); 1505 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1506 "showSettings", "(ZLjava/lang/String;JJJZ)V")); 1507 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1508 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1509 USE_STDERR, 1510 joptString, 1511 (jlong)initialHeapSize, 1512 (jlong)maxHeapSize, 1513 (jlong)threadStackSize, 1514 ServerClassMachine()); 1515 } 1516 1517 /* 1518 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1519 */ 1520 static void 1521 PrintUsage(JNIEnv* env, jboolean doXUsage) 1522 { 1523 jmethodID initHelp, vmSelect, vmSynonym, vmErgo, printHelp, printXUsageMessage; 1524 jstring jprogname, vm1, vm2; 1525 int i; 1526 jclass cls = GetLauncherHelperClass(env); 1527 NULL_CHECK(cls); 1528 if (doXUsage) { 1529 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1530 "printXUsageMessage", "(Z)V")); 1531 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, USE_STDERR); 1532 } else { 1533 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1534 "initHelpMessage", "(Ljava/lang/String;)V")); 1535 1536 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1537 "(Ljava/lang/String;Ljava/lang/String;)V")); 1538 1539 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1540 "appendVmSynonymMessage", 1541 "(Ljava/lang/String;Ljava/lang/String;)V")); 1542 NULL_CHECK(vmErgo = (*env)->GetStaticMethodID(env, cls, 1543 "appendVmErgoMessage", "(ZLjava/lang/String;)V")); 1544 1545 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1546 "printHelpMessage", "(Z)V")); 1547 1548 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1549 1550 /* Initialize the usage message with the usual preamble */ 1551 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1552 CHECK_EXCEPTION_RETURN(); 1553 1554 1555 /* Assemble the other variant part of the usage */ 1556 if ((knownVMs[0].flag == VM_KNOWN) || 1557 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { 1558 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[0].name)); 1559 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[0].name+1)); 1560 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1561 CHECK_EXCEPTION_RETURN(); 1562 } 1563 for (i=1; i<knownVMsCount; i++) { 1564 if (knownVMs[i].flag == VM_KNOWN) { 1565 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1566 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 1567 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1568 CHECK_EXCEPTION_RETURN(); 1569 } 1570 } 1571 for (i=1; i<knownVMsCount; i++) { 1572 if (knownVMs[i].flag == VM_ALIASED_TO) { 1573 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1574 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 1575 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1576 CHECK_EXCEPTION_RETURN(); 1577 } 1578 } 1579 1580 /* The first known VM is the default */ 1581 { 1582 jboolean isServerClassMachine = ServerClassMachine(); 1583 1584 const char* defaultVM = knownVMs[0].name+1; 1585 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && isServerClassMachine) { 1586 defaultVM = knownVMs[0].server_class+1; 1587 } 1588 1589 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, defaultVM)); 1590 (*env)->CallStaticVoidMethod(env, cls, vmErgo, isServerClassMachine, vm1); 1591 CHECK_EXCEPTION_RETURN(); 1592 } 1593 1594 /* Complete the usage message and print to stderr*/ 1595 (*env)->CallStaticVoidMethod(env, cls, printHelp, USE_STDERR); 1596 } 1597 return; 1598 } 1599 1600 /* 1601 * Read the jvm.cfg file and fill the knownJVMs[] array. 1602 * 1603 * The functionality of the jvm.cfg file is subject to change without 1604 * notice and the mechanism will be removed in the future. 1605 * 1606 * The lexical structure of the jvm.cfg file is as follows: 1607 * 1608 * jvmcfg := { vmLine } 1609 * vmLine := knownLine 1610 * | aliasLine 1611 * | warnLine 1612 * | ignoreLine 1613 * | errorLine 1614 * | predicateLine 1615 * | commentLine 1616 * knownLine := flag "KNOWN" EOL 1617 * warnLine := flag "WARN" EOL 1618 * ignoreLine := flag "IGNORE" EOL 1619 * errorLine := flag "ERROR" EOL 1620 * aliasLine := flag "ALIASED_TO" flag EOL 1621 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 1622 * commentLine := "#" text EOL 1623 * flag := "-" identifier 1624 * 1625 * The semantics are that when someone specifies a flag on the command line: 1626 * - if the flag appears on a knownLine, then the identifier is used as 1627 * the name of the directory holding the JVM library (the name of the JVM). 1628 * - if the flag appears as the first flag on an aliasLine, the identifier 1629 * of the second flag is used as the name of the JVM. 1630 * - if the flag appears on a warnLine, the identifier is used as the 1631 * name of the JVM, but a warning is generated. 1632 * - if the flag appears on an ignoreLine, the identifier is recognized as the 1633 * name of a JVM, but the identifier is ignored and the default vm used 1634 * - if the flag appears on an errorLine, an error is generated. 1635 * - if the flag appears as the first flag on a predicateLine, and 1636 * the machine on which you are running passes the predicate indicated, 1637 * then the identifier of the second flag is used as the name of the JVM, 1638 * otherwise the identifier of the first flag is used as the name of the JVM. 1639 * If no flag is given on the command line, the first vmLine of the jvm.cfg 1640 * file determines the name of the JVM. 1641 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 1642 * since they only make sense if someone hasn't specified the name of the 1643 * JVM on the command line. 1644 * 1645 * The intent of the jvm.cfg file is to allow several JVM libraries to 1646 * be installed in different subdirectories of a single JRE installation, 1647 * for space-savings and convenience in testing. 1648 * The intent is explicitly not to provide a full aliasing or predicate 1649 * mechanism. 1650 */ 1651 jint 1652 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 1653 { 1654 FILE *jvmCfg; 1655 char line[MAXPATHLEN+20]; 1656 int cnt = 0; 1657 int lineno = 0; 1658 jlong start, end; 1659 int vmType; 1660 char *tmpPtr; 1661 char *altVMName = NULL; 1662 char *serverClassVMName = NULL; 1663 static char *whiteSpace = " \t"; 1664 if (JLI_IsTraceLauncher()) { 1665 start = CounterGet(); 1666 } 1667 1668 jvmCfg = fopen(jvmCfgName, "r"); 1669 if (jvmCfg == NULL) { 1670 if (!speculative) { 1671 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 1672 exit(1); 1673 } else { 1674 return -1; 1675 } 1676 } 1677 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 1678 vmType = VM_UNKNOWN; 1679 lineno++; 1680 if (line[0] == '#') 1681 continue; 1682 if (line[0] != '-') { 1683 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 1684 } 1685 if (cnt >= knownVMsLimit) { 1686 GrowKnownVMs(cnt); 1687 } 1688 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 1689 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 1690 if (*tmpPtr == 0) { 1691 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1692 } else { 1693 /* Null-terminate this string for JLI_StringDup below */ 1694 *tmpPtr++ = 0; 1695 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1696 if (*tmpPtr == 0) { 1697 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1698 } else { 1699 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 1700 vmType = VM_KNOWN; 1701 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 1702 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1703 if (*tmpPtr != 0) { 1704 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1705 } 1706 if (*tmpPtr == 0) { 1707 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1708 } else { 1709 /* Null terminate altVMName */ 1710 altVMName = tmpPtr; 1711 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1712 *tmpPtr = 0; 1713 vmType = VM_ALIASED_TO; 1714 } 1715 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 1716 vmType = VM_WARN; 1717 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 1718 vmType = VM_IGNORE; 1719 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 1720 vmType = VM_ERROR; 1721 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 1722 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1723 if (*tmpPtr != 0) { 1724 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1725 } 1726 if (*tmpPtr == 0) { 1727 JLI_ReportErrorMessage(CFG_WARN4, lineno, jvmCfgName); 1728 } else { 1729 /* Null terminate server class VM name */ 1730 serverClassVMName = tmpPtr; 1731 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1732 *tmpPtr = 0; 1733 vmType = VM_IF_SERVER_CLASS; 1734 } 1735 } else { 1736 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 1737 vmType = VM_KNOWN; 1738 } 1739 } 1740 } 1741 1742 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 1743 if (vmType != VM_UNKNOWN) { 1744 knownVMs[cnt].name = JLI_StringDup(line); 1745 knownVMs[cnt].flag = vmType; 1746 switch (vmType) { 1747 default: 1748 break; 1749 case VM_ALIASED_TO: 1750 knownVMs[cnt].alias = JLI_StringDup(altVMName); 1751 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 1752 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 1753 break; 1754 case VM_IF_SERVER_CLASS: 1755 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName); 1756 JLI_TraceLauncher(" name: %s vmType: %s server_class: %s\n", 1757 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); 1758 break; 1759 } 1760 cnt++; 1761 } 1762 } 1763 fclose(jvmCfg); 1764 knownVMsCount = cnt; 1765 1766 if (JLI_IsTraceLauncher()) { 1767 end = CounterGet(); 1768 printf("%ld micro seconds to parse jvm.cfg\n", 1769 (long)(jint)Counter2Micros(end-start)); 1770 } 1771 1772 return cnt; 1773 } 1774 1775 1776 static void 1777 GrowKnownVMs(int minimum) 1778 { 1779 struct vmdesc* newKnownVMs; 1780 int newMax; 1781 1782 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 1783 if (newMax <= minimum) { 1784 newMax = minimum; 1785 } 1786 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 1787 if (knownVMs != NULL) { 1788 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 1789 } 1790 JLI_MemFree(knownVMs); 1791 knownVMs = newKnownVMs; 1792 knownVMsLimit = newMax; 1793 } 1794 1795 1796 /* Returns index of VM or -1 if not found */ 1797 static int 1798 KnownVMIndex(const char* name) 1799 { 1800 int i; 1801 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 1802 for (i = 0; i < knownVMsCount; i++) { 1803 if (!JLI_StrCmp(name, knownVMs[i].name)) { 1804 return i; 1805 } 1806 } 1807 return -1; 1808 } 1809 1810 static void 1811 FreeKnownVMs() 1812 { 1813 int i; 1814 for (i = 0; i < knownVMsCount; i++) { 1815 JLI_MemFree(knownVMs[i].name); 1816 knownVMs[i].name = NULL; 1817 } 1818 JLI_MemFree(knownVMs); 1819 } 1820 1821 /* 1822 * Displays the splash screen according to the jar file name 1823 * and image file names stored in environment variables 1824 */ 1825 void 1826 ShowSplashScreen() 1827 { 1828 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 1829 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 1830 int data_size; 1831 void *image_data = NULL; 1832 float scale_factor = 1; 1833 char *scaled_splash_name = NULL; 1834 1835 if (file_name == NULL){ 1836 return; 1837 } 1838 1839 scaled_splash_name = DoSplashGetScaledImageName( 1840 jar_name, file_name, &scale_factor); 1841 if (jar_name) { 1842 1843 if (scaled_splash_name) { 1844 image_data = JLI_JarUnpackFile( 1845 jar_name, scaled_splash_name, &data_size); 1846 } 1847 1848 if (!image_data) { 1849 scale_factor = 1; 1850 image_data = JLI_JarUnpackFile( 1851 jar_name, file_name, &data_size); 1852 } 1853 if (image_data) { 1854 DoSplashInit(); 1855 DoSplashSetScaleFactor(scale_factor); 1856 DoSplashLoadMemory(image_data, data_size); 1857 JLI_MemFree(image_data); 1858 } 1859 } else { 1860 DoSplashInit(); 1861 if (scaled_splash_name) { 1862 DoSplashSetScaleFactor(scale_factor); 1863 DoSplashLoadFile(scaled_splash_name); 1864 } else { 1865 DoSplashLoadFile(file_name); 1866 } 1867 } 1868 1869 if (scaled_splash_name) { 1870 JLI_MemFree(scaled_splash_name); 1871 } 1872 1873 DoSplashSetFileJarName(file_name, jar_name); 1874 1875 /* 1876 * Done with all command line processing and potential re-execs so 1877 * clean up the environment. 1878 */ 1879 (void)UnsetEnv(ENV_ENTRY); 1880 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 1881 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 1882 1883 JLI_MemFree(splash_jar_entry); 1884 JLI_MemFree(splash_file_entry); 1885 1886 } 1887 1888 const char* 1889 GetDotVersion() 1890 { 1891 return _dVersion; 1892 } 1893 1894 const char* 1895 GetFullVersion() 1896 { 1897 return _fVersion; 1898 } 1899 1900 const char* 1901 GetProgramName() 1902 { 1903 return _program_name; 1904 } 1905 1906 const char* 1907 GetLauncherName() 1908 { 1909 return _launcher_name; 1910 } 1911 1912 jint 1913 GetErgoPolicy() 1914 { 1915 return _ergo_policy; 1916 } 1917 1918 jboolean 1919 IsJavaArgs() 1920 { 1921 return _is_java_args; 1922 } 1923 1924 static jboolean 1925 IsWildCardEnabled() 1926 { 1927 return _wc_enabled; 1928 } 1929 1930 int 1931 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 1932 int argc, char **argv, 1933 int mode, char *what, int ret) 1934 { 1935 1936 /* 1937 * If user doesn't specify stack size, check if VM has a preference. 1938 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 1939 * return its default stack size through the init args structure. 1940 */ 1941 if (threadStackSize == 0) { 1942 struct JDK1_1InitArgs args1_1; 1943 memset((void*)&args1_1, 0, sizeof(args1_1)); 1944 args1_1.version = JNI_VERSION_1_1; 1945 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 1946 if (args1_1.javaStackSize > 0) { 1947 threadStackSize = args1_1.javaStackSize; 1948 } 1949 } 1950 1951 { /* Create a new thread to create JVM and invoke main method */ 1952 JavaMainArgs args; 1953 int rslt; 1954 1955 args.argc = argc; 1956 args.argv = argv; 1957 args.mode = mode; 1958 args.what = what; 1959 args.ifn = *ifn; 1960 1961 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args); 1962 /* If the caller has deemed there is an error we 1963 * simply return that, otherwise we return the value of 1964 * the callee 1965 */ 1966 return (ret != 0) ? ret : rslt; 1967 } 1968 } 1969 1970 static void 1971 DumpState() 1972 { 1973 if (!JLI_IsTraceLauncher()) return ; 1974 printf("Launcher state:\n"); 1975 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 1976 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 1977 printf("\tprogram name:%s\n", GetProgramName()); 1978 printf("\tlauncher name:%s\n", GetLauncherName()); 1979 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 1980 printf("\tfullversion:%s\n", GetFullVersion()); 1981 printf("\tdotversion:%s\n", GetDotVersion()); 1982 printf("\tergo_policy:"); 1983 switch(GetErgoPolicy()) { 1984 case NEVER_SERVER_CLASS: 1985 printf("NEVER_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 1986 break; 1987 case ALWAYS_SERVER_CLASS: 1988 printf("ALWAYS_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 1989 break; 1990 default: 1991 printf("DEFAULT_ERGONOMICS_POLICY\n"); 1992 } 1993 } 1994 1995 /* 1996 * Return JNI_TRUE for an option string that has no effect but should 1997 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On 1998 * Solaris SPARC, this screening needs to be done if: 1999 * -d32 or -d64 is passed to a binary with an unmatched data model 2000 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the 2001 * exec to the proper binary). In the case of when the data model and the 2002 * requested version is matched, an exec would not occur, and these options 2003 * were erroneously passed to the vm. 2004 */ 2005 jboolean 2006 RemovableOption(char * option) 2007 { 2008 /* 2009 * Unconditionally remove both -d32 and -d64 options since only 2010 * the last such options has an effect; e.g. 2011 * java -d32 -d64 -d32 -version 2012 * is equivalent to 2013 * java -d32 -version 2014 */ 2015 2016 if( (JLI_StrCCmp(option, "-d32") == 0 ) || 2017 (JLI_StrCCmp(option, "-d64") == 0 ) ) 2018 return JNI_TRUE; 2019 else 2020 return JNI_FALSE; 2021 } 2022 2023 /* 2024 * A utility procedure to always print to stderr 2025 */ 2026 void 2027 JLI_ReportMessage(const char* fmt, ...) 2028 { 2029 va_list vl; 2030 va_start(vl, fmt); 2031 vfprintf(stderr, fmt, vl); 2032 fprintf(stderr, "\n"); 2033 va_end(vl); 2034 }