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 jboolean dryRun = JNI_FALSE; /* initialize VM and exit */ 72 static char *showSettings = NULL; /* print but continue */ 73 static char *listModules = NULL; 74 75 static const char *_program_name; 76 static const char *_launcher_name; 77 static jboolean _is_java_args = JNI_FALSE; 78 static jboolean _have_classpath = JNI_FALSE; 79 static const char *_fVersion; 80 static jboolean _wc_enabled = JNI_FALSE; 81 static jint _ergo_policy = DEFAULT_POLICY; 82 83 /* 84 * Entries for splash screen environment variables. 85 * putenv is performed in SelectVersion. We need 86 * them in memory until UnsetEnv, so they are made static 87 * global instead of auto local. 88 */ 89 static char* splash_file_entry = NULL; 90 static char* splash_jar_entry = NULL; 91 92 /* 93 * List of VM options to be specified when the VM is created. 94 */ 95 static JavaVMOption *options; 96 static int numOptions, maxOptions; 97 98 /* 99 * Prototypes for functions internal to launcher. 100 */ 101 static void SetClassPath(const char *s); 102 static void SetMainModule(const char *s); 103 static void SelectVersion(int argc, char **argv, char **main_class); 104 static void SetJvmEnvironment(int argc, char **argv); 105 static jboolean ParseArguments(int *pargc, char ***pargv, 106 int *pmode, char **pwhat, 107 int *pret, const char *jrepath); 108 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 109 InvocationFunctions *ifn); 110 static jstring NewPlatformString(JNIEnv *env, char *s); 111 static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 112 static jclass GetApplicationClass(JNIEnv *env); 113 114 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 115 static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 116 static void SetApplicationClassPath(const char**); 117 118 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF); 119 static void PrintUsage(JNIEnv* env, jboolean doXUsage); 120 static void ShowSettings(JNIEnv* env, char *optString); 121 static void ListModules(JNIEnv* env, char *optString); 122 123 static void SetPaths(int argc, char **argv); 124 125 static void DumpState(); 126 static jboolean RemovableOption(char *option); 127 128 enum OptionKind { 129 LAUNCHER_OPTION = 0, 130 LAUNCHER_OPTION_WITH_ARGUMENT, 131 LAUNCHER_MAIN_OPTION, 132 VM_LONG_OPTION, 133 VM_LONG_OPTION_WITH_ARGUMENT, 134 VM_OPTION 135 }; 136 137 static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue); 138 static jboolean IsOptionWithArgument(int argc, char **argv); 139 140 /* Maximum supported entries from jvm.cfg. */ 141 #define INIT_MAX_KNOWN_VMS 10 142 143 /* Values for vmdesc.flag */ 144 enum vmdesc_flag { 145 VM_UNKNOWN = -1, 146 VM_KNOWN, 147 VM_ALIASED_TO, 148 VM_WARN, 149 VM_ERROR, 150 VM_IF_SERVER_CLASS, 151 VM_IGNORE 152 }; 153 154 struct vmdesc { 155 char *name; 156 int flag; 157 char *alias; 158 char *server_class; 159 }; 160 static struct vmdesc *knownVMs = NULL; 161 static int knownVMsCount = 0; 162 static int knownVMsLimit = 0; 163 164 static void GrowKnownVMs(int minimum); 165 static int KnownVMIndex(const char* name); 166 static void FreeKnownVMs(); 167 static jboolean IsWildCardEnabled(); 168 169 /* 170 * This reports error. VM will not be created and no usage is printed. 171 */ 172 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \ 173 do { \ 174 if (!AC_ok) { \ 175 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 176 printUsage = JNI_FALSE; \ 177 *pret = 1; \ 178 return JNI_FALSE; \ 179 } \ 180 } while (JNI_FALSE) 181 182 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \ 183 do { \ 184 if (AC_arg_count < 1) { \ 185 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 186 printUsage = JNI_TRUE; \ 187 *pret = 1; \ 188 return JNI_TRUE; \ 189 } \ 190 } while (JNI_FALSE) 191 192 /* 193 * Running Java code in primordial thread caused many problems. We will 194 * create a new thread to invoke JVM. See 6316197 for more information. 195 */ 196 static jlong threadStackSize = 0; /* stack size of the new thread */ 197 static jlong maxHeapSize = 0; /* max heap size */ 198 static jlong initialHeapSize = 0; /* inital heap size */ 199 200 /* 201 * A minimum -Xss stack size suitable for all platforms. 202 */ 203 #ifndef STACK_SIZE_MINIMUM 204 #define STACK_SIZE_MINIMUM (32 * KB) 205 #endif 206 207 /* 208 * Entry point. 209 */ 210 int 211 JLI_Launch(int argc, char ** argv, /* main argc, argc */ 212 int jargc, const char** jargv, /* java args */ 213 int appclassc, const char** appclassv, /* app classpath */ 214 const char* fullversion, /* full version defined */ 215 const char* dotversion, /* UNUSED dot version defined */ 216 const char* pname, /* program name */ 217 const char* lname, /* launcher name */ 218 jboolean javaargs, /* JAVA_ARGS */ 219 jboolean cpwildcard, /* classpath wildcard*/ 220 jboolean javaw, /* windows-only javaw */ 221 jint ergo /* ergonomics class policy */ 222 ) 223 { 224 int mode = LM_UNKNOWN; 225 char *what = NULL; 226 char *main_class = NULL; 227 int ret; 228 InvocationFunctions ifn; 229 jlong start, end; 230 char jvmpath[MAXPATHLEN]; 231 char jrepath[MAXPATHLEN]; 232 char jvmcfg[MAXPATHLEN]; 233 234 _fVersion = fullversion; 235 _launcher_name = lname; 236 _program_name = pname; 237 _is_java_args = javaargs; 238 _wc_enabled = cpwildcard; 239 _ergo_policy = ergo; 240 241 InitLauncher(javaw); 242 DumpState(); 243 if (JLI_IsTraceLauncher()) { 244 int i; 245 printf("Command line args:\n"); 246 for (i = 0; i < argc ; i++) { 247 printf("argv[%d] = %s\n", i, argv[i]); 248 } 249 AddOption("-Dsun.java.launcher.diag=true", NULL); 250 } 251 252 /* 253 * SelectVersion() has several responsibilities: 254 * 255 * 1) Disallow specification of another JRE. With 1.9, another 256 * version of the JRE cannot be invoked. 257 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since 258 * all mJRE directives have been stripped from the request but 259 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been 260 * invoked from the command line. 261 */ 262 SelectVersion(argc, argv, &main_class); 263 264 CreateExecutionEnvironment(&argc, &argv, 265 jrepath, sizeof(jrepath), 266 jvmpath, sizeof(jvmpath), 267 jvmcfg, sizeof(jvmcfg)); 268 269 if (!IsJavaArgs()) { 270 SetJvmEnvironment(argc,argv); 271 } 272 273 ifn.CreateJavaVM = 0; 274 ifn.GetDefaultJavaVMInitArgs = 0; 275 276 if (JLI_IsTraceLauncher()) { 277 start = CounterGet(); 278 } 279 280 if (!LoadJavaVM(jvmpath, &ifn)) { 281 return(6); 282 } 283 284 if (JLI_IsTraceLauncher()) { 285 end = CounterGet(); 286 } 287 288 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", 289 (long)(jint)Counter2Micros(end-start)); 290 291 ++argv; 292 --argc; 293 294 if (IsJavaArgs()) { 295 /* Preprocess wrapper arguments */ 296 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 297 if (!AddApplicationOptions(appclassc, appclassv)) { 298 return(1); 299 } 300 } else { 301 /* Set default CLASSPATH */ 302 char* cpath = getenv("CLASSPATH"); 303 if (cpath != NULL) { 304 SetClassPath(cpath); 305 } 306 } 307 308 /* Parse command line options; if the return value of 309 * ParseArguments is false, the program should exit. 310 */ 311 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) 312 { 313 return(ret); 314 } 315 316 /* Override class path if -jar flag was specified */ 317 if (mode == LM_JAR) { 318 SetClassPath(what); /* Override class path */ 319 } 320 321 /* set the -Dsun.java.command pseudo property */ 322 SetJavaCommandLineProp(what, argc, argv); 323 324 /* Set the -Dsun.java.launcher pseudo property */ 325 SetJavaLauncherProp(); 326 327 /* set the -Dsun.java.launcher.* platform properties */ 328 SetJavaLauncherPlatformProps(); 329 330 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); 331 } 332 /* 333 * Always detach the main thread so that it appears to have ended when 334 * the application's main method exits. This will invoke the 335 * uncaught exception handler machinery if main threw an 336 * exception. An uncaught exception handler cannot change the 337 * launcher's return code except by calling System.exit. 338 * 339 * Wait for all non-daemon threads to end, then destroy the VM. 340 * This will actually create a trivial new Java waiter thread 341 * named "DestroyJavaVM", but this will be seen as a different 342 * thread from the one that executed main, even though they are 343 * the same C thread. This allows mainThread.join() and 344 * mainThread.isAlive() to work as expected. 345 */ 346 #define LEAVE() \ 347 do { \ 348 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \ 349 JLI_ReportErrorMessage(JVM_ERROR2); \ 350 ret = 1; \ 351 } \ 352 if (JNI_TRUE) { \ 353 (*vm)->DestroyJavaVM(vm); \ 354 return ret; \ 355 } \ 356 } while (JNI_FALSE) 357 358 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \ 359 do { \ 360 if ((*env)->ExceptionOccurred(env)) { \ 361 JLI_ReportExceptionDescription(env); \ 362 LEAVE(); \ 363 } \ 364 if ((CENL_exception) == NULL) { \ 365 JLI_ReportErrorMessage(JNI_ERROR); \ 366 LEAVE(); \ 367 } \ 368 } while (JNI_FALSE) 369 370 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \ 371 do { \ 372 if ((*env)->ExceptionOccurred(env)) { \ 373 JLI_ReportExceptionDescription(env); \ 374 ret = (CEL_return_value); \ 375 LEAVE(); \ 376 } \ 377 } while (JNI_FALSE) 378 379 380 int JNICALL 381 JavaMain(void * _args) 382 { 383 JavaMainArgs *args = (JavaMainArgs *)_args; 384 int argc = args->argc; 385 char **argv = args->argv; 386 int mode = args->mode; 387 char *what = args->what; 388 InvocationFunctions ifn = args->ifn; 389 390 JavaVM *vm = 0; 391 JNIEnv *env = 0; 392 jclass mainClass = NULL; 393 jclass appClass = NULL; // actual application class being launched 394 jmethodID mainID; 395 jobjectArray mainArgs; 396 int ret = 0; 397 jlong start, end; 398 399 RegisterThread(); 400 401 /* Initialize the virtual machine */ 402 start = CounterGet(); 403 if (!InitializeJVM(&vm, &env, &ifn)) { 404 JLI_ReportErrorMessage(JVM_ERROR1); 405 exit(1); 406 } 407 408 if (showSettings != NULL) { 409 ShowSettings(env, showSettings); 410 CHECK_EXCEPTION_LEAVE(1); 411 } 412 413 if (listModules != NULL) { 414 ListModules(env, listModules); 415 CHECK_EXCEPTION_LEAVE(1); 416 LEAVE(); 417 } 418 419 if (printVersion || showVersion) { 420 PrintJavaVersion(env, showVersion); 421 CHECK_EXCEPTION_LEAVE(0); 422 if (printVersion) { 423 LEAVE(); 424 } 425 } 426 427 /* If the user specified neither a class name nor a JAR file */ 428 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 429 PrintUsage(env, printXUsage); 430 CHECK_EXCEPTION_LEAVE(1); 431 LEAVE(); 432 } 433 434 FreeKnownVMs(); /* after last possible PrintUsage() */ 435 436 if (JLI_IsTraceLauncher()) { 437 end = CounterGet(); 438 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 439 (long)(jint)Counter2Micros(end-start)); 440 } 441 442 /* At this stage, argc/argv have the application's arguments */ 443 if (JLI_IsTraceLauncher()){ 444 int i; 445 printf("%s is '%s'\n", launchModeNames[mode], what); 446 printf("App's argc is %d\n", argc); 447 for (i=0; i < argc; i++) { 448 printf(" argv[%2d] = '%s'\n", i, argv[i]); 449 } 450 } 451 452 ret = 1; 453 454 /* 455 * Get the application's main class. It also checks if the main 456 * method exists. 457 * 458 * See bugid 5030265. The Main-Class name has already been parsed 459 * from the manifest, but not parsed properly for UTF-8 support. 460 * Hence the code here ignores the value previously extracted and 461 * uses the pre-existing code to reextract the value. This is 462 * possibly an end of release cycle expedient. However, it has 463 * also been discovered that passing some character sets through 464 * the environment has "strange" behavior on some variants of 465 * Windows. Hence, maybe the manifest parsing code local to the 466 * launcher should never be enhanced. 467 * 468 * Hence, future work should either: 469 * 1) Correct the local parsing code and verify that the 470 * Main-Class attribute gets properly passed through 471 * all environments, 472 * 2) Remove the vestages of maintaining main_class through 473 * the environment (and remove these comments). 474 * 475 * This method also correctly handles launching existing JavaFX 476 * applications that may or may not have a Main-Class manifest entry. 477 */ 478 mainClass = LoadMainClass(env, mode, what); 479 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 480 /* 481 * In some cases when launching an application that needs a helper, e.g., a 482 * JavaFX application with no main method, the mainClass will not be the 483 * applications own main class but rather a helper class. To keep things 484 * consistent in the UI we need to track and report the application main class. 485 */ 486 appClass = GetApplicationClass(env); 487 NULL_CHECK_RETURN_VALUE(appClass, -1); 488 489 /* Build platform specific argument array */ 490 mainArgs = CreateApplicationArgs(env, argv, argc); 491 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 492 493 if (dryRun) { 494 ret = 0; 495 LEAVE(); 496 } 497 498 /* 499 * PostJVMInit uses the class name as the application name for GUI purposes, 500 * for example, on OSX this sets the application name in the menu bar for 501 * both SWT and JavaFX. So we'll pass the actual application class here 502 * instead of mainClass as that may be a launcher or helper class instead 503 * of the application class. 504 */ 505 PostJVMInit(env, appClass, vm); 506 CHECK_EXCEPTION_LEAVE(1); 507 508 /* 509 * The LoadMainClass not only loads the main class, it will also ensure 510 * that the main method's signature is correct, therefore further checking 511 * is not required. The main method is invoked here so that extraneous java 512 * stacks are not in the application stack trace. 513 */ 514 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 515 "([Ljava/lang/String;)V"); 516 CHECK_EXCEPTION_NULL_LEAVE(mainID); 517 518 /* Invoke main method. */ 519 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 520 521 /* 522 * The launcher's exit code (in the absence of calls to 523 * System.exit) will be non-zero if main threw an exception. 524 */ 525 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 526 527 LEAVE(); 528 } 529 530 /* 531 * Test if the given name is one of the class path options. 532 */ 533 static jboolean 534 IsClassPathOption(const char* name) { 535 return JLI_StrCmp(name, "-classpath") == 0 || 536 JLI_StrCmp(name, "-cp") == 0 || 537 JLI_StrCmp(name, "--class-path") == 0; 538 } 539 540 /* 541 * Test if the given name is a launcher option taking the main entry point. 542 */ 543 static jboolean 544 IsLauncherMainOption(const char* name) { 545 return JLI_StrCmp(name, "--module") == 0 || 546 JLI_StrCmp(name, "-m") == 0; 547 } 548 549 /* 550 * Test if the given name is a white-space launcher option. 551 */ 552 static jboolean 553 IsLauncherOption(const char* name) { 554 return IsClassPathOption(name) || 555 IsLauncherMainOption(name) || 556 JLI_StrCmp(name, "--list-modules") == 0; 557 } 558 559 #ifndef OLD_MODULE_OPTIONS 560 /* 561 * Old module options for transition 562 */ 563 static jboolean 564 IsOldModuleOption(const char* name) { 565 return JLI_StrCmp(name, "-modulepath") == 0 || 566 JLI_StrCmp(name, "-mp") == 0 || 567 JLI_StrCmp(name, "-upgrademodulepath") == 0 || 568 JLI_StrCmp(name, "-addmods") == 0 || 569 JLI_StrCmp(name, "-limitmods") == 0; 570 } 571 #endif 572 573 /* 574 * Test if the given name is a module-system white-space option that 575 * will be passed to the VM with its corresponding long-form option 576 * name and "=" delimiter. 577 */ 578 static jboolean 579 IsModuleOption(const char* name) { 580 return JLI_StrCmp(name, "--module-path") == 0 || 581 JLI_StrCmp(name, "-p") == 0 || 582 JLI_StrCmp(name, "--upgrade-module-path") == 0 || 583 JLI_StrCmp(name, "--add-modules") == 0 || 584 JLI_StrCmp(name, "--limit-modules") == 0 || 585 JLI_StrCmp(name, "--add-exports") == 0 || 586 JLI_StrCmp(name, "--add-reads") == 0 || 587 JLI_StrCmp(name, "--patch-module") == 0 || 588 IsOldModuleOption(name); 589 } 590 591 /* 592 * Test if the given name has a white space option. 593 */ 594 jboolean 595 IsWhiteSpaceOption(const char* name) { 596 return IsModuleOption(name) || 597 IsLauncherOption(name); 598 } 599 600 /* 601 * Checks the command line options to find which JVM type was 602 * specified. If no command line option was given for the JVM type, 603 * the default type is used. The environment variable 604 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 605 * checked as ways of specifying which JVM type to invoke. 606 */ 607 char * 608 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 609 int i, argi; 610 int argc; 611 char **newArgv; 612 int newArgvIdx = 0; 613 int isVMType; 614 int jvmidx = -1; 615 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 616 617 argc = *pargc; 618 619 /* To make things simpler we always copy the argv array */ 620 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 621 622 /* The program name is always present */ 623 newArgv[newArgvIdx++] = (*argv)[0]; 624 625 for (argi = 1; argi < argc; argi++) { 626 char *arg = (*argv)[argi]; 627 isVMType = 0; 628 629 if (IsJavaArgs()) { 630 if (arg[0] != '-') { 631 newArgv[newArgvIdx++] = arg; 632 continue; 633 } 634 } else { 635 if (IsWhiteSpaceOption(arg)) { 636 newArgv[newArgvIdx++] = arg; 637 argi++; 638 if (argi < argc) { 639 newArgv[newArgvIdx++] = (*argv)[argi]; 640 } 641 continue; 642 } 643 if (arg[0] != '-') break; 644 } 645 646 /* Did the user pass an explicit VM type? */ 647 i = KnownVMIndex(arg); 648 if (i >= 0) { 649 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 650 isVMType = 1; 651 *pargc = *pargc - 1; 652 } 653 654 /* Did the user specify an "alternate" VM? */ 655 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 656 isVMType = 1; 657 jvmtype = arg+((arg[1]=='X')? 10 : 12); 658 jvmidx = -1; 659 } 660 661 if (!isVMType) { 662 newArgv[newArgvIdx++] = arg; 663 } 664 } 665 666 /* 667 * Finish copying the arguments if we aborted the above loop. 668 * NOTE that if we aborted via "break" then we did NOT copy the 669 * last argument above, and in addition argi will be less than 670 * argc. 671 */ 672 while (argi < argc) { 673 newArgv[newArgvIdx++] = (*argv)[argi]; 674 argi++; 675 } 676 677 /* argv is null-terminated */ 678 newArgv[newArgvIdx] = 0; 679 680 /* Copy back argv */ 681 *argv = newArgv; 682 *pargc = newArgvIdx; 683 684 /* use the default VM type if not specified (no alias processing) */ 685 if (jvmtype == NULL) { 686 char* result = knownVMs[0].name+1; 687 /* Use a different VM type if we are on a server class machine? */ 688 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && 689 (ServerClassMachine() == JNI_TRUE)) { 690 result = knownVMs[0].server_class+1; 691 } 692 JLI_TraceLauncher("Default VM: %s\n", result); 693 return result; 694 } 695 696 /* if using an alternate VM, no alias processing */ 697 if (jvmidx < 0) 698 return jvmtype; 699 700 /* Resolve aliases first */ 701 { 702 int loopCount = 0; 703 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 704 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 705 706 if (loopCount > knownVMsCount) { 707 if (!speculative) { 708 JLI_ReportErrorMessage(CFG_ERROR1); 709 exit(1); 710 } else { 711 return "ERROR"; 712 /* break; */ 713 } 714 } 715 716 if (nextIdx < 0) { 717 if (!speculative) { 718 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 719 exit(1); 720 } else { 721 return "ERROR"; 722 } 723 } 724 jvmidx = nextIdx; 725 jvmtype = knownVMs[jvmidx].name+1; 726 loopCount++; 727 } 728 } 729 730 switch (knownVMs[jvmidx].flag) { 731 case VM_WARN: 732 if (!speculative) { 733 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 734 } 735 /* fall through */ 736 case VM_IGNORE: 737 jvmtype = knownVMs[jvmidx=0].name + 1; 738 /* fall through */ 739 case VM_KNOWN: 740 break; 741 case VM_ERROR: 742 if (!speculative) { 743 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 744 exit(1); 745 } else { 746 return "ERROR"; 747 } 748 } 749 750 return jvmtype; 751 } 752 753 /* 754 * static void SetJvmEnvironment(int argc, char **argv); 755 * Is called just before the JVM is loaded. We can set env variables 756 * that are consumed by the JVM. This function is non-destructive, 757 * leaving the arg list intact. The first use is for the JVM flag 758 * -XX:NativeMemoryTracking=value. 759 */ 760 static void 761 SetJvmEnvironment(int argc, char **argv) { 762 763 static const char* NMT_Env_Name = "NMT_LEVEL_"; 764 int i; 765 for (i = 0; i < argc; i++) { 766 char *arg = argv[i]; 767 /* 768 * Since this must be a VM flag we stop processing once we see 769 * an argument the launcher would not have processed beyond (such 770 * as -version or -h), or an argument that indicates the following 771 * arguments are for the application (i.e. the main class name, or 772 * the -jar argument). 773 */ 774 if (i > 0) { 775 char *prev = argv[i - 1]; 776 // skip non-dash arg preceded by class path specifiers 777 if (*arg != '-' && IsWhiteSpaceOption(prev)) { 778 continue; 779 } 780 781 if (*arg != '-' 782 || JLI_StrCmp(arg, "-version") == 0 783 || JLI_StrCmp(arg, "-fullversion") == 0 784 || JLI_StrCmp(arg, "-help") == 0 785 || JLI_StrCmp(arg, "--help") == 0 786 || JLI_StrCmp(arg, "-?") == 0 787 || JLI_StrCmp(arg, "-jar") == 0 788 || JLI_StrCmp(arg, "-X") == 0) { 789 return; 790 } 791 } 792 /* 793 * The following case checks for "-XX:NativeMemoryTracking=value". 794 * If value is non null, an environmental variable set to this value 795 * will be created to be used by the JVM. 796 * The argument is passed to the JVM, which will check validity. 797 * The JVM is responsible for removing the env variable. 798 */ 799 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { 800 int retval; 801 // get what follows this parameter, include "=" 802 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); 803 if (JLI_StrLen(arg) > pnlen) { 804 char* value = arg + pnlen; 805 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits 806 807 /* 808 * ensures that malloc successful 809 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call 810 * that could store the address. 811 */ 812 char * pbuf = (char*)JLI_MemAlloc(pbuflen); 813 814 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); 815 retval = JLI_PutEnv(pbuf); 816 if (JLI_IsTraceLauncher()) { 817 char* envName; 818 char* envBuf; 819 820 // ensures that malloc successful 821 envName = (char*)JLI_MemAlloc(pbuflen); 822 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); 823 824 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); 825 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); 826 envBuf = getenv(envName); 827 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); 828 free(envName); 829 } 830 831 } 832 833 } 834 835 } 836 } 837 838 /* copied from HotSpot function "atomll()" */ 839 static int 840 parse_size(const char *s, jlong *result) { 841 jlong n = 0; 842 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n); 843 if (args_read != 1) { 844 return 0; 845 } 846 while (*s != '\0' && *s >= '0' && *s <= '9') { 847 s++; 848 } 849 // 4705540: illegal if more characters are found after the first non-digit 850 if (JLI_StrLen(s) > 1) { 851 return 0; 852 } 853 switch (*s) { 854 case 'T': case 't': 855 *result = n * GB * KB; 856 return 1; 857 case 'G': case 'g': 858 *result = n * GB; 859 return 1; 860 case 'M': case 'm': 861 *result = n * MB; 862 return 1; 863 case 'K': case 'k': 864 *result = n * KB; 865 return 1; 866 case '\0': 867 *result = n; 868 return 1; 869 default: 870 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 871 return 0; 872 } 873 } 874 875 /* 876 * Adds a new VM option with the given name and value. 877 */ 878 void 879 AddOption(char *str, void *info) 880 { 881 /* 882 * Expand options array if needed to accommodate at least one more 883 * VM option. 884 */ 885 if (numOptions >= maxOptions) { 886 if (options == 0) { 887 maxOptions = 4; 888 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 889 } else { 890 JavaVMOption *tmp; 891 maxOptions *= 2; 892 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 893 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 894 JLI_MemFree(options); 895 options = tmp; 896 } 897 } 898 options[numOptions].optionString = str; 899 options[numOptions++].extraInfo = info; 900 901 if (JLI_StrCCmp(str, "-Xss") == 0) { 902 jlong tmp; 903 if (parse_size(str + 4, &tmp)) { 904 threadStackSize = tmp; 905 /* 906 * Make sure the thread stack size is big enough that we won't get a stack 907 * overflow before the JVM startup code can check to make sure the stack 908 * is big enough. 909 */ 910 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) { 911 threadStackSize = STACK_SIZE_MINIMUM; 912 } 913 } 914 } 915 916 if (JLI_StrCCmp(str, "-Xmx") == 0) { 917 jlong tmp; 918 if (parse_size(str + 4, &tmp)) { 919 maxHeapSize = tmp; 920 } 921 } 922 923 if (JLI_StrCCmp(str, "-Xms") == 0) { 924 jlong tmp; 925 if (parse_size(str + 4, &tmp)) { 926 initialHeapSize = tmp; 927 } 928 } 929 } 930 931 static void 932 SetClassPath(const char *s) 933 { 934 char *def; 935 const char *orig = s; 936 static const char format[] = "-Djava.class.path=%s"; 937 /* 938 * usually we should not get a null pointer, but there are cases where 939 * we might just get one, in which case we simply ignore it, and let the 940 * caller deal with it 941 */ 942 if (s == NULL) 943 return; 944 s = JLI_WildcardExpandClasspath(s); 945 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 946 // s is became corrupted after expanding wildcards 947 return; 948 def = JLI_MemAlloc(sizeof(format) 949 - 2 /* strlen("%s") */ 950 + JLI_StrLen(s)); 951 sprintf(def, format, s); 952 AddOption(def, NULL); 953 if (s != orig) 954 JLI_MemFree((char *) s); 955 _have_classpath = JNI_TRUE; 956 } 957 958 static void 959 AddLongFormOption(const char *option, const char *arg) 960 { 961 static const char format[] = "%s=%s"; 962 char *def; 963 size_t def_len; 964 965 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1; 966 def = JLI_MemAlloc(def_len); 967 JLI_Snprintf(def, def_len, format, option, arg); 968 AddOption(def, NULL); 969 } 970 971 static void 972 SetMainModule(const char *s) 973 { 974 static const char format[] = "-Djdk.module.main=%s"; 975 char* slash = JLI_StrChr(s, '/'); 976 size_t s_len, def_len; 977 char *def; 978 979 /* value may be <module> or <module>/<mainclass> */ 980 if (slash == NULL) { 981 s_len = JLI_StrLen(s); 982 } else { 983 s_len = (size_t) (slash - s); 984 } 985 def_len = sizeof(format) 986 - 2 /* strlen("%s") */ 987 + s_len; 988 def = JLI_MemAlloc(def_len); 989 JLI_Snprintf(def, def_len, format, s); 990 AddOption(def, NULL); 991 } 992 993 /* 994 * The SelectVersion() routine ensures that an appropriate version of 995 * the JRE is running. The specification for the appropriate version 996 * is obtained from either the manifest of a jar file (preferred) or 997 * from command line options. 998 * The routine also parses splash screen command line options and 999 * passes on their values in private environment variables. 1000 */ 1001 static void 1002 SelectVersion(int argc, char **argv, char **main_class) 1003 { 1004 char *arg; 1005 char *operand; 1006 char *version = NULL; 1007 char *jre = NULL; 1008 int jarflag = 0; 1009 int headlessflag = 0; 1010 int restrict_search = -1; /* -1 implies not known */ 1011 manifest_info info; 1012 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 1013 char *splash_file_name = NULL; 1014 char *splash_jar_name = NULL; 1015 char *env_in; 1016 int res; 1017 jboolean has_arg; 1018 1019 /* 1020 * If the version has already been selected, set *main_class 1021 * with the value passed through the environment (if any) and 1022 * simply return. 1023 */ 1024 1025 /* 1026 * This environmental variable can be set by mJRE capable JREs 1027 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been 1028 * stripped by those JREs. This environmental variable allows 1.9+ 1029 * JREs to be started by these mJRE capable JREs. 1030 * Note that mJRE directives in the jar manifest file would have been 1031 * ignored for a JRE started by another JRE... 1032 * .. skipped for JRE 1.5 and beyond. 1033 * .. not even checked for pre 1.5. 1034 */ 1035 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 1036 if (*env_in != '\0') 1037 *main_class = JLI_StringDup(env_in); 1038 return; 1039 } 1040 1041 /* 1042 * Scan through the arguments for options relevant to multiple JRE 1043 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8. 1044 * 1045 * This capability is no longer available with JRE versions 1.9 and later. 1046 * These command line options are reported as errors. 1047 */ 1048 1049 argc--; 1050 argv++; 1051 while ((arg = *argv) != 0 && *arg == '-') { 1052 has_arg = IsOptionWithArgument(argc, argv); 1053 if (JLI_StrCCmp(arg, "-version:") == 0) { 1054 JLI_ReportErrorMessage(SPC_ERROR1); 1055 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 1056 JLI_ReportErrorMessage(SPC_ERROR2); 1057 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) { 1058 JLI_ReportErrorMessage(SPC_ERROR2); 1059 } else { 1060 if (JLI_StrCmp(arg, "-jar") == 0) 1061 jarflag = 1; 1062 if (IsWhiteSpaceOption(arg)) { 1063 if (has_arg) { 1064 argc--; 1065 argv++; 1066 arg = *argv; 1067 } 1068 } 1069 1070 /* 1071 * Checking for headless toolkit option in the some way as AWT does: 1072 * "true" means true and any other value means false 1073 */ 1074 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 1075 headlessflag = 1; 1076 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 1077 headlessflag = 0; 1078 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1079 splash_file_name = arg+8; 1080 } 1081 } 1082 argc--; 1083 argv++; 1084 } 1085 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 1086 operand = NULL; 1087 } else { 1088 argc--; 1089 operand = *argv++; 1090 } 1091 1092 /* 1093 * If there is a jar file, read the manifest. If the jarfile can't be 1094 * read, the manifest can't be read from the jar file, or the manifest 1095 * is corrupt, issue the appropriate error messages and exit. 1096 * 1097 * Even if there isn't a jar file, construct a manifest_info structure 1098 * containing the command line information. It's a convenient way to carry 1099 * this data around. 1100 */ 1101 if (jarflag && operand) { 1102 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 1103 if (res == -1) 1104 JLI_ReportErrorMessage(JAR_ERROR2, operand); 1105 else 1106 JLI_ReportErrorMessage(JAR_ERROR3, operand); 1107 exit(1); 1108 } 1109 1110 /* 1111 * Command line splash screen option should have precedence 1112 * over the manifest, so the manifest data is used only if 1113 * splash_file_name has not been initialized above during command 1114 * line parsing 1115 */ 1116 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 1117 splash_file_name = info.splashscreen_image_file_name; 1118 splash_jar_name = operand; 1119 } 1120 } else { 1121 info.manifest_version = NULL; 1122 info.main_class = NULL; 1123 info.jre_version = NULL; 1124 info.jre_restrict_search = 0; 1125 } 1126 1127 /* 1128 * Passing on splash screen info in environment variables 1129 */ 1130 if (splash_file_name && !headlessflag) { 1131 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 1132 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1133 JLI_StrCat(splash_file_entry, splash_file_name); 1134 putenv(splash_file_entry); 1135 } 1136 if (splash_jar_name && !headlessflag) { 1137 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 1138 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 1139 JLI_StrCat(splash_jar_entry, splash_jar_name); 1140 putenv(splash_jar_entry); 1141 } 1142 1143 1144 /* 1145 * "Valid" returns (other than unrecoverable errors) follow. Set 1146 * main_class as a side-effect of this routine. 1147 */ 1148 if (info.main_class != NULL) 1149 *main_class = JLI_StringDup(info.main_class); 1150 1151 if (info.jre_version == NULL) { 1152 JLI_FreeManifest(); 1153 return; 1154 } 1155 1156 } 1157 1158 /* 1159 * Test if the current argv is an option, i.e. with a leading `-` 1160 * and followed with an argument without a leading `-`. 1161 */ 1162 static jboolean 1163 IsOptionWithArgument(int argc, char** argv) { 1164 char* option; 1165 char* arg; 1166 1167 if (argc <= 1) 1168 return JNI_FALSE; 1169 1170 option = *argv; 1171 arg = *(argv+1); 1172 return *option == '-' && *arg != '-'; 1173 } 1174 1175 /* 1176 * Gets the option, and its argument if the option has an argument. 1177 * It will update *pargc, **pargv to the next option. 1178 */ 1179 static int 1180 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) { 1181 int argc = *pargc; 1182 char** argv = *pargv; 1183 char* arg = *argv; 1184 1185 char* option = arg; 1186 char* value = NULL; 1187 char* equals = NULL; 1188 int kind = LAUNCHER_OPTION; 1189 jboolean has_arg = JNI_FALSE; 1190 1191 // check if this option may be a white-space option with an argument 1192 has_arg = IsOptionWithArgument(argc, argv); 1193 1194 argv++; --argc; 1195 if (IsLauncherOption(arg)) { 1196 if (has_arg) { 1197 value = *argv; 1198 argv++; --argc; 1199 } 1200 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION 1201 : LAUNCHER_OPTION_WITH_ARGUMENT; 1202 } else if (IsModuleOption(arg)) { 1203 kind = VM_LONG_OPTION_WITH_ARGUMENT; 1204 if (has_arg) { 1205 value = *argv; 1206 argv++; --argc; 1207 } 1208 1209 /* 1210 * Support short form alias 1211 */ 1212 if (JLI_StrCmp(arg, "-p") == 0) { 1213 option = "--module-path"; 1214 } 1215 1216 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) { 1217 value = equals+1; 1218 if (JLI_StrCCmp(arg, "--list-modules=") == 0 || 1219 JLI_StrCCmp(arg, "--module=") == 0 || 1220 JLI_StrCCmp(arg, "--class-path=") == 0) { 1221 kind = LAUNCHER_OPTION_WITH_ARGUMENT; 1222 } else { 1223 kind = VM_LONG_OPTION; 1224 } 1225 } 1226 1227 #ifndef OLD_MODULE_OPTIONS 1228 // for transition to support both old and new syntax 1229 if (JLI_StrCmp(arg, "-modulepath") == 0 || 1230 JLI_StrCmp(arg, "-mp") == 0) { 1231 option = "--module-path"; 1232 } else if (JLI_StrCmp(arg, "-upgrademodulepath") == 0) { 1233 option = "--upgrade-module-path"; 1234 } else if (JLI_StrCmp(arg, "-addmods") == 0) { 1235 option = "--add-modules"; 1236 } else if (JLI_StrCmp(arg, "-limitmods") == 0) { 1237 option = "--limit-modules"; 1238 } else if (JLI_StrCCmp(arg, "-XaddExports:") == 0) { 1239 option = "--add-exports"; 1240 value = arg + 13; 1241 kind = VM_LONG_OPTION_WITH_ARGUMENT; 1242 } else if (JLI_StrCCmp(arg, "-XaddReads:") == 0) { 1243 option = "--add-reads"; 1244 value = arg + 11; 1245 kind = VM_LONG_OPTION_WITH_ARGUMENT; 1246 } else if (JLI_StrCCmp(arg, "-Xpatch:") == 0) { 1247 option = "--patch-module"; 1248 value = arg + 8; 1249 kind = VM_LONG_OPTION_WITH_ARGUMENT; 1250 } 1251 #endif 1252 1253 *pargc = argc; 1254 *pargv = argv; 1255 *poption = option; 1256 *pvalue = value; 1257 return kind; 1258 } 1259 1260 /* 1261 * Parses command line arguments. Returns JNI_FALSE if launcher 1262 * should exit without starting vm, returns JNI_TRUE if vm needs 1263 * to be started to process given options. *pret (the launcher 1264 * process return value) is set to 0 for a normal exit. 1265 */ 1266 static jboolean 1267 ParseArguments(int *pargc, char ***pargv, 1268 int *pmode, char **pwhat, 1269 int *pret, const char *jrepath) 1270 { 1271 int argc = *pargc; 1272 char **argv = *pargv; 1273 int mode = LM_UNKNOWN; 1274 char *arg; 1275 1276 *pret = 0; 1277 1278 while ((arg = *argv) != 0 && *arg == '-') { 1279 char *option = NULL; 1280 char *value = NULL; 1281 int kind = GetOpt(&argc, &argv, &option, &value); 1282 jboolean has_arg = value != NULL; 1283 1284 /* 1285 * Option to set main entry point 1286 */ 1287 if (JLI_StrCmp(arg, "-jar") == 0) { 1288 ARG_CHECK(argc, ARG_ERROR2, arg); 1289 mode = LM_JAR; 1290 } else if (JLI_StrCmp(arg, "--module") == 0 || 1291 JLI_StrCCmp(arg, "--module=") == 0 || 1292 JLI_StrCmp(arg, "-m") == 0) { 1293 REPORT_ERROR (has_arg, ARG_ERROR5, arg); 1294 SetMainModule(value); 1295 mode = LM_MODULE; 1296 if (has_arg) { 1297 *pwhat = value; 1298 break; 1299 } 1300 } else if (JLI_StrCmp(arg, "--class-path") == 0 || 1301 JLI_StrCCmp(arg, "--class-path=") == 0 || 1302 JLI_StrCmp(arg, "-classpath") == 0 || 1303 JLI_StrCmp(arg, "-cp") == 0) { 1304 REPORT_ERROR (has_arg, ARG_ERROR1, arg); 1305 SetClassPath(value); 1306 mode = LM_CLASS; 1307 } else if (JLI_StrCmp(arg, "--list-modules") == 0 || 1308 JLI_StrCCmp(arg, "--list-modules=") == 0) { 1309 listModules = arg; 1310 1311 // set listModules to --list-modules=<module-names> if argument is specified 1312 if (JLI_StrCmp(arg, "--list-modules") == 0 && has_arg) { 1313 static const char format[] = "%s=%s"; 1314 size_t buflen = JLI_StrLen(option) + 2 + JLI_StrLen(value); 1315 listModules = JLI_MemAlloc(buflen); 1316 JLI_Snprintf(listModules, buflen, format, option, value); 1317 } 1318 return JNI_TRUE; 1319 /* 1320 * Parse white-space options 1321 */ 1322 } else if (has_arg) { 1323 if (kind == VM_LONG_OPTION) { 1324 AddOption(option, NULL); 1325 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) { 1326 AddLongFormOption(option, value); 1327 } 1328 /* 1329 * Error missing argument 1330 */ 1331 } else if (!has_arg && IsWhiteSpaceOption(arg)) { 1332 if (JLI_StrCmp(arg, "--module-path") == 0 || 1333 JLI_StrCmp(arg, "-p") == 0 || 1334 JLI_StrCmp(arg, "--upgrade-module-path") == 0) { 1335 REPORT_ERROR (has_arg, ARG_ERROR4, arg); 1336 } else if (JLI_StrCmp(arg, "--add-modules") == 0 || 1337 JLI_StrCmp(arg, "--limit-modules") == 0 || 1338 JLI_StrCmp(arg, "--add-exports") == 0 || 1339 JLI_StrCmp(arg, "--add-reads") == 0 || 1340 JLI_StrCmp(arg, "--patch-module") == 0) { 1341 REPORT_ERROR (has_arg, ARG_ERROR6, arg); 1342 } 1343 #ifndef OLD_MODULE_OPTIONS 1344 else if (JLI_StrCmp(arg, "-modulepath") == 0 || 1345 JLI_StrCmp(arg, "-mp") == 0 || 1346 JLI_StrCmp(arg, "-upgrademodulepath") == 0) { 1347 REPORT_ERROR (has_arg, ARG_ERROR4, arg); 1348 } else if (JLI_StrCmp(arg, "-addmods") == 0 || 1349 JLI_StrCmp(arg, "-limitmods") == 0) { 1350 REPORT_ERROR (has_arg, ARG_ERROR6, arg); 1351 } 1352 #endif 1353 /* 1354 * The following cases will cause the argument parsing to stop 1355 */ 1356 } else if (JLI_StrCmp(arg, "--help") == 0 || 1357 JLI_StrCmp(arg, "-help") == 0 || 1358 JLI_StrCmp(arg, "-h") == 0 || 1359 JLI_StrCmp(arg, "-?") == 0) { 1360 printUsage = JNI_TRUE; 1361 return JNI_TRUE; 1362 } else if (JLI_StrCmp(arg, "-version") == 0) { 1363 printVersion = JNI_TRUE; 1364 return JNI_TRUE; 1365 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1366 showVersion = JNI_TRUE; 1367 } else if (JLI_StrCmp(arg, "--dry-run") == 0) { 1368 dryRun = JNI_TRUE; 1369 } else if (JLI_StrCmp(arg, "-X") == 0) { 1370 printXUsage = JNI_TRUE; 1371 return JNI_TRUE; 1372 /* 1373 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1374 * In the latter case, any SUBOPT value not recognized will default to "all" 1375 */ 1376 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1377 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1378 showSettings = arg; 1379 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1380 AddOption("-Dsun.java.launcher.diag=true", NULL); 1381 AddOption("-Djdk.launcher.traceResolver=true", NULL); 1382 } else if (JLI_StrCmp(arg, "-Xdiag:resolver") == 0) { 1383 AddOption("-Djdk.launcher.traceResolver=true", NULL); 1384 /* 1385 * The following case provide backward compatibility with old-style 1386 * command line options. 1387 */ 1388 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1389 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1390 return JNI_FALSE; 1391 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1392 AddOption("-verbose:gc", NULL); 1393 } else if (JLI_StrCmp(arg, "-t") == 0) { 1394 AddOption("-Xt", NULL); 1395 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1396 AddOption("-Xtm", NULL); 1397 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1398 AddOption("-Xdebug", NULL); 1399 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1400 AddOption("-Xnoclassgc", NULL); 1401 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1402 AddOption("-Xverify:all", NULL); 1403 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1404 AddOption("-Xverify:all", NULL); 1405 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1406 AddOption("-Xverify:remote", NULL); 1407 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1408 AddOption("-Xverify:none", NULL); 1409 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1410 JLI_StrCCmp(arg, "-oss") == 0 || 1411 JLI_StrCCmp(arg, "-ms") == 0 || 1412 JLI_StrCCmp(arg, "-mx") == 0) { 1413 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1414 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1415 AddOption(tmp, NULL); 1416 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1417 JLI_StrCmp(arg, "-cs") == 0 || 1418 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1419 /* No longer supported */ 1420 JLI_ReportErrorMessage(ARG_WARN, arg); 1421 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1422 ; /* Ignore machine independent options already handled */ 1423 } else if (ProcessPlatformOption(arg)) { 1424 ; /* Processing of platform dependent options */ 1425 } else if (RemovableOption(arg)) { 1426 ; /* Do not pass option to vm. */ 1427 } else { 1428 /* java.class.path set on the command line */ 1429 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) { 1430 _have_classpath = JNI_TRUE; 1431 } 1432 AddOption(arg, NULL); 1433 } 1434 } 1435 1436 if (*pwhat == NULL && --argc >= 0) { 1437 *pwhat = *argv++; 1438 } 1439 1440 if (*pwhat == NULL) { 1441 *pret = 1; 1442 } else if (mode == LM_UNKNOWN) { 1443 /* default to LM_CLASS if -m, -jar and -cp options are 1444 * not specified */ 1445 if (!_have_classpath) { 1446 SetClassPath("."); 1447 } 1448 mode = LM_CLASS; 1449 } 1450 1451 if (argc >= 0) { 1452 *pargc = argc; 1453 *pargv = argv; 1454 } 1455 1456 *pmode = mode; 1457 1458 return JNI_TRUE; 1459 } 1460 1461 /* 1462 * Initializes the Java Virtual Machine. Also frees options array when 1463 * finished. 1464 */ 1465 static jboolean 1466 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1467 { 1468 JavaVMInitArgs args; 1469 jint r; 1470 1471 memset(&args, 0, sizeof(args)); 1472 args.version = JNI_VERSION_1_2; 1473 args.nOptions = numOptions; 1474 args.options = options; 1475 args.ignoreUnrecognized = JNI_FALSE; 1476 1477 if (JLI_IsTraceLauncher()) { 1478 int i = 0; 1479 printf("JavaVM args:\n "); 1480 printf("version 0x%08lx, ", (long)args.version); 1481 printf("ignoreUnrecognized is %s, ", 1482 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1483 printf("nOptions is %ld\n", (long)args.nOptions); 1484 for (i = 0; i < numOptions; i++) 1485 printf(" option[%2d] = '%s'\n", 1486 i, args.options[i].optionString); 1487 } 1488 1489 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1490 JLI_MemFree(options); 1491 return r == JNI_OK; 1492 } 1493 1494 static jclass helperClass = NULL; 1495 1496 jclass 1497 GetLauncherHelperClass(JNIEnv *env) 1498 { 1499 if (helperClass == NULL) { 1500 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1501 "sun/launcher/LauncherHelper")); 1502 } 1503 return helperClass; 1504 } 1505 1506 static jmethodID makePlatformStringMID = NULL; 1507 /* 1508 * Returns a new Java string object for the specified platform string. 1509 */ 1510 static jstring 1511 NewPlatformString(JNIEnv *env, char *s) 1512 { 1513 int len = (int)JLI_StrLen(s); 1514 jbyteArray ary; 1515 jclass cls = GetLauncherHelperClass(env); 1516 NULL_CHECK0(cls); 1517 if (s == NULL) 1518 return 0; 1519 1520 ary = (*env)->NewByteArray(env, len); 1521 if (ary != 0) { 1522 jstring str = 0; 1523 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1524 if (!(*env)->ExceptionOccurred(env)) { 1525 if (makePlatformStringMID == NULL) { 1526 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1527 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1528 } 1529 str = (*env)->CallStaticObjectMethod(env, cls, 1530 makePlatformStringMID, USE_STDERR, ary); 1531 (*env)->DeleteLocalRef(env, ary); 1532 return str; 1533 } 1534 } 1535 return 0; 1536 } 1537 1538 /* 1539 * Returns a new array of Java string objects for the specified 1540 * array of platform strings. 1541 */ 1542 jobjectArray 1543 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1544 { 1545 jarray cls; 1546 jarray ary; 1547 int i; 1548 1549 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1550 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1551 for (i = 0; i < strc; i++) { 1552 jstring str = NewPlatformString(env, *strv++); 1553 NULL_CHECK0(str); 1554 (*env)->SetObjectArrayElement(env, ary, i, str); 1555 (*env)->DeleteLocalRef(env, str); 1556 } 1557 return ary; 1558 } 1559 1560 /* 1561 * Loads a class and verifies that the main class is present and it is ok to 1562 * call it for more details refer to the java implementation. 1563 */ 1564 static jclass 1565 LoadMainClass(JNIEnv *env, int mode, char *name) 1566 { 1567 jmethodID mid; 1568 jstring str; 1569 jobject result; 1570 jlong start, end; 1571 jclass cls = GetLauncherHelperClass(env); 1572 NULL_CHECK0(cls); 1573 if (JLI_IsTraceLauncher()) { 1574 start = CounterGet(); 1575 } 1576 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1577 "checkAndLoadMain", 1578 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1579 1580 NULL_CHECK0(str = NewPlatformString(env, name)); 1581 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1582 USE_STDERR, mode, str)); 1583 1584 if (JLI_IsTraceLauncher()) { 1585 end = CounterGet(); 1586 printf("%ld micro seconds to load main class\n", 1587 (long)(jint)Counter2Micros(end-start)); 1588 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1589 } 1590 1591 return (jclass)result; 1592 } 1593 1594 static jclass 1595 GetApplicationClass(JNIEnv *env) 1596 { 1597 jmethodID mid; 1598 jclass cls = GetLauncherHelperClass(env); 1599 NULL_CHECK0(cls); 1600 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1601 "getApplicationClass", 1602 "()Ljava/lang/Class;")); 1603 1604 return (*env)->CallStaticObjectMethod(env, cls, mid); 1605 } 1606 1607 /* 1608 * For tools, convert command line args thus: 1609 * javac -cp foo:foo/"*" -J-ms32m ... 1610 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1611 * 1612 * Takes 4 parameters, and returns the populated arguments 1613 */ 1614 static void 1615 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1616 { 1617 int argc = *pargc; 1618 char **argv = *pargv; 1619 int nargc = argc + jargc; 1620 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1621 int i; 1622 1623 *pargc = nargc; 1624 *pargv = nargv; 1625 1626 /* Copy the VM arguments (i.e. prefixed with -J) */ 1627 for (i = 0; i < jargc; i++) { 1628 const char *arg = jargv[i]; 1629 if (arg[0] == '-' && arg[1] == 'J') { 1630 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1631 } 1632 } 1633 1634 for (i = 0; i < argc; i++) { 1635 char *arg = argv[i]; 1636 if (arg[0] == '-' && arg[1] == 'J') { 1637 if (arg[2] == '\0') { 1638 JLI_ReportErrorMessage(ARG_ERROR3); 1639 exit(1); 1640 } 1641 *nargv++ = arg + 2; 1642 } 1643 } 1644 1645 /* Copy the rest of the arguments */ 1646 for (i = 0; i < jargc ; i++) { 1647 const char *arg = jargv[i]; 1648 if (arg[0] != '-' || arg[1] != 'J') { 1649 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1650 } 1651 } 1652 for (i = 0; i < argc; i++) { 1653 char *arg = argv[i]; 1654 if (arg[0] == '-') { 1655 if (arg[1] == 'J') 1656 continue; 1657 if (IsWildCardEnabled() && arg[1] == 'c' 1658 && (JLI_StrCmp(arg, "-cp") == 0 || 1659 JLI_StrCmp(arg, "-classpath") == 0) 1660 && i < argc - 1) { 1661 *nargv++ = arg; 1662 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1663 i++; 1664 continue; 1665 } 1666 } 1667 *nargv++ = arg; 1668 } 1669 *nargv = 0; 1670 } 1671 1672 /* 1673 * For our tools, we try to add 3 VM options: 1674 * -Denv.class.path=<envcp> 1675 * -Dapplication.home=<apphome> 1676 * -Djava.class.path=<appcp> 1677 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1678 * tells javac where to find binary classes through this environment 1679 * variable. Notice that users will be able to compile against our 1680 * tools classes (sun.tools.javac.Main) only if they explicitly add 1681 * tools.jar to CLASSPATH. 1682 * <apphome> is the directory where the application is installed. 1683 * <appcp> is the classpath to where our apps' classfiles are. 1684 */ 1685 static jboolean 1686 AddApplicationOptions(int cpathc, const char **cpathv) 1687 { 1688 char *envcp, *appcp, *apphome; 1689 char home[MAXPATHLEN]; /* application home */ 1690 char separator[] = { PATH_SEPARATOR, '\0' }; 1691 int size, i; 1692 1693 { 1694 const char *s = getenv("CLASSPATH"); 1695 if (s) { 1696 s = (char *) JLI_WildcardExpandClasspath(s); 1697 /* 40 for -Denv.class.path= */ 1698 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1699 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1700 sprintf(envcp, "-Denv.class.path=%s", s); 1701 AddOption(envcp, NULL); 1702 } 1703 } 1704 } 1705 1706 if (!GetApplicationHome(home, sizeof(home))) { 1707 JLI_ReportErrorMessage(CFG_ERROR5); 1708 return JNI_FALSE; 1709 } 1710 1711 /* 40 for '-Dapplication.home=' */ 1712 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1713 sprintf(apphome, "-Dapplication.home=%s", home); 1714 AddOption(apphome, NULL); 1715 1716 /* How big is the application's classpath? */ 1717 size = 40; /* 40: "-Djava.class.path=" */ 1718 for (i = 0; i < cpathc; i++) { 1719 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1720 } 1721 appcp = (char *)JLI_MemAlloc(size + 1); 1722 JLI_StrCpy(appcp, "-Djava.class.path="); 1723 for (i = 0; i < cpathc; i++) { 1724 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1725 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1726 JLI_StrCat(appcp, separator); /* ; */ 1727 } 1728 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1729 AddOption(appcp, NULL); 1730 return JNI_TRUE; 1731 } 1732 1733 /* 1734 * inject the -Dsun.java.command pseudo property into the args structure 1735 * this pseudo property is used in the HotSpot VM to expose the 1736 * Java class name and arguments to the main method to the VM. The 1737 * HotSpot VM uses this pseudo property to store the Java class name 1738 * (or jar file name) and the arguments to the class's main method 1739 * to the instrumentation memory region. The sun.java.command pseudo 1740 * property is not exported by HotSpot to the Java layer. 1741 */ 1742 void 1743 SetJavaCommandLineProp(char *what, int argc, char **argv) 1744 { 1745 1746 int i = 0; 1747 size_t len = 0; 1748 char* javaCommand = NULL; 1749 char* dashDstr = "-Dsun.java.command="; 1750 1751 if (what == NULL) { 1752 /* unexpected, one of these should be set. just return without 1753 * setting the property 1754 */ 1755 return; 1756 } 1757 1758 /* determine the amount of memory to allocate assuming 1759 * the individual components will be space separated 1760 */ 1761 len = JLI_StrLen(what); 1762 for (i = 0; i < argc; i++) { 1763 len += JLI_StrLen(argv[i]) + 1; 1764 } 1765 1766 /* allocate the memory */ 1767 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1768 1769 /* build the -D string */ 1770 *javaCommand = '\0'; 1771 JLI_StrCat(javaCommand, dashDstr); 1772 JLI_StrCat(javaCommand, what); 1773 1774 for (i = 0; i < argc; i++) { 1775 /* the components of the string are space separated. In 1776 * the case of embedded white space, the relationship of 1777 * the white space separated components to their true 1778 * positional arguments will be ambiguous. This issue may 1779 * be addressed in a future release. 1780 */ 1781 JLI_StrCat(javaCommand, " "); 1782 JLI_StrCat(javaCommand, argv[i]); 1783 } 1784 1785 AddOption(javaCommand, NULL); 1786 } 1787 1788 /* 1789 * JVM would like to know if it's created by a standard Sun launcher, or by 1790 * user native application, the following property indicates the former. 1791 */ 1792 void 1793 SetJavaLauncherProp() { 1794 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1795 } 1796 1797 /* 1798 * Prints the version information from the java.version and other properties. 1799 */ 1800 static void 1801 PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1802 { 1803 jclass ver; 1804 jmethodID print; 1805 1806 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps")); 1807 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1808 ver, 1809 (extraLF == JNI_TRUE) ? "println" : "print", 1810 "()V" 1811 ) 1812 ); 1813 1814 (*env)->CallStaticVoidMethod(env, ver, print); 1815 } 1816 1817 /* 1818 * Prints all the Java settings, see the java implementation for more details. 1819 */ 1820 static void 1821 ShowSettings(JNIEnv *env, char *optString) 1822 { 1823 jmethodID showSettingsID; 1824 jstring joptString; 1825 jclass cls = GetLauncherHelperClass(env); 1826 NULL_CHECK(cls); 1827 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1828 "showSettings", "(ZLjava/lang/String;JJJZ)V")); 1829 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1830 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1831 USE_STDERR, 1832 joptString, 1833 (jlong)initialHeapSize, 1834 (jlong)maxHeapSize, 1835 (jlong)threadStackSize, 1836 ServerClassMachine()); 1837 } 1838 1839 /** 1840 * List modules supported by the runtime 1841 */ 1842 static void 1843 ListModules(JNIEnv *env, char *optString) 1844 { 1845 jmethodID listModulesID; 1846 jstring joptString = NULL; 1847 jclass cls = GetLauncherHelperClass(env); 1848 NULL_CHECK(cls); 1849 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls, 1850 "listModules", "(ZLjava/lang/String;)V")); 1851 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1852 (*env)->CallStaticVoidMethod(env, cls, listModulesID, 1853 USE_STDERR, 1854 joptString); 1855 } 1856 1857 /* 1858 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1859 */ 1860 static void 1861 PrintUsage(JNIEnv* env, jboolean doXUsage) 1862 { 1863 jmethodID initHelp, vmSelect, vmSynonym, vmErgo, printHelp, printXUsageMessage; 1864 jstring jprogname, vm1, vm2; 1865 int i; 1866 jclass cls = GetLauncherHelperClass(env); 1867 NULL_CHECK(cls); 1868 if (doXUsage) { 1869 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1870 "printXUsageMessage", "(Z)V")); 1871 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, USE_STDERR); 1872 } else { 1873 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1874 "initHelpMessage", "(Ljava/lang/String;)V")); 1875 1876 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1877 "(Ljava/lang/String;Ljava/lang/String;)V")); 1878 1879 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1880 "appendVmSynonymMessage", 1881 "(Ljava/lang/String;Ljava/lang/String;)V")); 1882 NULL_CHECK(vmErgo = (*env)->GetStaticMethodID(env, cls, 1883 "appendVmErgoMessage", "(ZLjava/lang/String;)V")); 1884 1885 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1886 "printHelpMessage", "(Z)V")); 1887 1888 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1889 1890 /* Initialize the usage message with the usual preamble */ 1891 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1892 CHECK_EXCEPTION_RETURN(); 1893 1894 1895 /* Assemble the other variant part of the usage */ 1896 if ((knownVMs[0].flag == VM_KNOWN) || 1897 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { 1898 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[0].name)); 1899 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[0].name+1)); 1900 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1901 CHECK_EXCEPTION_RETURN(); 1902 } 1903 for (i=1; i<knownVMsCount; i++) { 1904 if (knownVMs[i].flag == VM_KNOWN) { 1905 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1906 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 1907 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1908 CHECK_EXCEPTION_RETURN(); 1909 } 1910 } 1911 for (i=1; i<knownVMsCount; i++) { 1912 if (knownVMs[i].flag == VM_ALIASED_TO) { 1913 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1914 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 1915 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1916 CHECK_EXCEPTION_RETURN(); 1917 } 1918 } 1919 1920 /* The first known VM is the default */ 1921 { 1922 jboolean isServerClassMachine = ServerClassMachine(); 1923 1924 const char* defaultVM = knownVMs[0].name+1; 1925 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && isServerClassMachine) { 1926 defaultVM = knownVMs[0].server_class+1; 1927 } 1928 1929 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, defaultVM)); 1930 (*env)->CallStaticVoidMethod(env, cls, vmErgo, isServerClassMachine, vm1); 1931 CHECK_EXCEPTION_RETURN(); 1932 } 1933 1934 /* Complete the usage message and print to stderr*/ 1935 (*env)->CallStaticVoidMethod(env, cls, printHelp, USE_STDERR); 1936 } 1937 return; 1938 } 1939 1940 /* 1941 * Read the jvm.cfg file and fill the knownJVMs[] array. 1942 * 1943 * The functionality of the jvm.cfg file is subject to change without 1944 * notice and the mechanism will be removed in the future. 1945 * 1946 * The lexical structure of the jvm.cfg file is as follows: 1947 * 1948 * jvmcfg := { vmLine } 1949 * vmLine := knownLine 1950 * | aliasLine 1951 * | warnLine 1952 * | ignoreLine 1953 * | errorLine 1954 * | predicateLine 1955 * | commentLine 1956 * knownLine := flag "KNOWN" EOL 1957 * warnLine := flag "WARN" EOL 1958 * ignoreLine := flag "IGNORE" EOL 1959 * errorLine := flag "ERROR" EOL 1960 * aliasLine := flag "ALIASED_TO" flag EOL 1961 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 1962 * commentLine := "#" text EOL 1963 * flag := "-" identifier 1964 * 1965 * The semantics are that when someone specifies a flag on the command line: 1966 * - if the flag appears on a knownLine, then the identifier is used as 1967 * the name of the directory holding the JVM library (the name of the JVM). 1968 * - if the flag appears as the first flag on an aliasLine, the identifier 1969 * of the second flag is used as the name of the JVM. 1970 * - if the flag appears on a warnLine, the identifier is used as the 1971 * name of the JVM, but a warning is generated. 1972 * - if the flag appears on an ignoreLine, the identifier is recognized as the 1973 * name of a JVM, but the identifier is ignored and the default vm used 1974 * - if the flag appears on an errorLine, an error is generated. 1975 * - if the flag appears as the first flag on a predicateLine, and 1976 * the machine on which you are running passes the predicate indicated, 1977 * then the identifier of the second flag is used as the name of the JVM, 1978 * otherwise the identifier of the first flag is used as the name of the JVM. 1979 * If no flag is given on the command line, the first vmLine of the jvm.cfg 1980 * file determines the name of the JVM. 1981 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 1982 * since they only make sense if someone hasn't specified the name of the 1983 * JVM on the command line. 1984 * 1985 * The intent of the jvm.cfg file is to allow several JVM libraries to 1986 * be installed in different subdirectories of a single JRE installation, 1987 * for space-savings and convenience in testing. 1988 * The intent is explicitly not to provide a full aliasing or predicate 1989 * mechanism. 1990 */ 1991 jint 1992 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 1993 { 1994 FILE *jvmCfg; 1995 char line[MAXPATHLEN+20]; 1996 int cnt = 0; 1997 int lineno = 0; 1998 jlong start, end; 1999 int vmType; 2000 char *tmpPtr; 2001 char *altVMName = NULL; 2002 char *serverClassVMName = NULL; 2003 static char *whiteSpace = " \t"; 2004 if (JLI_IsTraceLauncher()) { 2005 start = CounterGet(); 2006 } 2007 2008 jvmCfg = fopen(jvmCfgName, "r"); 2009 if (jvmCfg == NULL) { 2010 if (!speculative) { 2011 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 2012 exit(1); 2013 } else { 2014 return -1; 2015 } 2016 } 2017 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 2018 vmType = VM_UNKNOWN; 2019 lineno++; 2020 if (line[0] == '#') 2021 continue; 2022 if (line[0] != '-') { 2023 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 2024 } 2025 if (cnt >= knownVMsLimit) { 2026 GrowKnownVMs(cnt); 2027 } 2028 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 2029 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 2030 if (*tmpPtr == 0) { 2031 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2032 } else { 2033 /* Null-terminate this string for JLI_StringDup below */ 2034 *tmpPtr++ = 0; 2035 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2036 if (*tmpPtr == 0) { 2037 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2038 } else { 2039 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 2040 vmType = VM_KNOWN; 2041 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 2042 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2043 if (*tmpPtr != 0) { 2044 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2045 } 2046 if (*tmpPtr == 0) { 2047 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2048 } else { 2049 /* Null terminate altVMName */ 2050 altVMName = tmpPtr; 2051 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2052 *tmpPtr = 0; 2053 vmType = VM_ALIASED_TO; 2054 } 2055 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 2056 vmType = VM_WARN; 2057 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 2058 vmType = VM_IGNORE; 2059 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 2060 vmType = VM_ERROR; 2061 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 2062 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2063 if (*tmpPtr != 0) { 2064 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2065 } 2066 if (*tmpPtr == 0) { 2067 JLI_ReportErrorMessage(CFG_WARN4, lineno, jvmCfgName); 2068 } else { 2069 /* Null terminate server class VM name */ 2070 serverClassVMName = tmpPtr; 2071 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2072 *tmpPtr = 0; 2073 vmType = VM_IF_SERVER_CLASS; 2074 } 2075 } else { 2076 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 2077 vmType = VM_KNOWN; 2078 } 2079 } 2080 } 2081 2082 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 2083 if (vmType != VM_UNKNOWN) { 2084 knownVMs[cnt].name = JLI_StringDup(line); 2085 knownVMs[cnt].flag = vmType; 2086 switch (vmType) { 2087 default: 2088 break; 2089 case VM_ALIASED_TO: 2090 knownVMs[cnt].alias = JLI_StringDup(altVMName); 2091 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 2092 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 2093 break; 2094 case VM_IF_SERVER_CLASS: 2095 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName); 2096 JLI_TraceLauncher(" name: %s vmType: %s server_class: %s\n", 2097 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); 2098 break; 2099 } 2100 cnt++; 2101 } 2102 } 2103 fclose(jvmCfg); 2104 knownVMsCount = cnt; 2105 2106 if (JLI_IsTraceLauncher()) { 2107 end = CounterGet(); 2108 printf("%ld micro seconds to parse jvm.cfg\n", 2109 (long)(jint)Counter2Micros(end-start)); 2110 } 2111 2112 return cnt; 2113 } 2114 2115 2116 static void 2117 GrowKnownVMs(int minimum) 2118 { 2119 struct vmdesc* newKnownVMs; 2120 int newMax; 2121 2122 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 2123 if (newMax <= minimum) { 2124 newMax = minimum; 2125 } 2126 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 2127 if (knownVMs != NULL) { 2128 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 2129 } 2130 JLI_MemFree(knownVMs); 2131 knownVMs = newKnownVMs; 2132 knownVMsLimit = newMax; 2133 } 2134 2135 2136 /* Returns index of VM or -1 if not found */ 2137 static int 2138 KnownVMIndex(const char* name) 2139 { 2140 int i; 2141 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 2142 for (i = 0; i < knownVMsCount; i++) { 2143 if (!JLI_StrCmp(name, knownVMs[i].name)) { 2144 return i; 2145 } 2146 } 2147 return -1; 2148 } 2149 2150 static void 2151 FreeKnownVMs() 2152 { 2153 int i; 2154 for (i = 0; i < knownVMsCount; i++) { 2155 JLI_MemFree(knownVMs[i].name); 2156 knownVMs[i].name = NULL; 2157 } 2158 JLI_MemFree(knownVMs); 2159 } 2160 2161 /* 2162 * Displays the splash screen according to the jar file name 2163 * and image file names stored in environment variables 2164 */ 2165 void 2166 ShowSplashScreen() 2167 { 2168 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 2169 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 2170 int data_size; 2171 void *image_data = NULL; 2172 float scale_factor = 1; 2173 char *scaled_splash_name = NULL; 2174 jboolean isImageScaled = JNI_FALSE; 2175 size_t maxScaledImgNameLength = 0; 2176 if (file_name == NULL){ 2177 return; 2178 } 2179 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name); 2180 2181 scaled_splash_name = JLI_MemAlloc( 2182 maxScaledImgNameLength * sizeof(char)); 2183 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name, 2184 &scale_factor, 2185 scaled_splash_name, maxScaledImgNameLength); 2186 if (jar_name) { 2187 2188 if (isImageScaled) { 2189 image_data = JLI_JarUnpackFile( 2190 jar_name, scaled_splash_name, &data_size); 2191 } 2192 2193 if (!image_data) { 2194 scale_factor = 1; 2195 image_data = JLI_JarUnpackFile( 2196 jar_name, file_name, &data_size); 2197 } 2198 if (image_data) { 2199 DoSplashInit(); 2200 DoSplashSetScaleFactor(scale_factor); 2201 DoSplashLoadMemory(image_data, data_size); 2202 JLI_MemFree(image_data); 2203 } 2204 } else { 2205 DoSplashInit(); 2206 if (isImageScaled) { 2207 DoSplashSetScaleFactor(scale_factor); 2208 DoSplashLoadFile(scaled_splash_name); 2209 } else { 2210 DoSplashLoadFile(file_name); 2211 } 2212 } 2213 JLI_MemFree(scaled_splash_name); 2214 2215 DoSplashSetFileJarName(file_name, jar_name); 2216 2217 /* 2218 * Done with all command line processing and potential re-execs so 2219 * clean up the environment. 2220 */ 2221 (void)UnsetEnv(ENV_ENTRY); 2222 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 2223 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 2224 2225 JLI_MemFree(splash_jar_entry); 2226 JLI_MemFree(splash_file_entry); 2227 2228 } 2229 2230 const char* 2231 GetFullVersion() 2232 { 2233 return _fVersion; 2234 } 2235 2236 const char* 2237 GetProgramName() 2238 { 2239 return _program_name; 2240 } 2241 2242 const char* 2243 GetLauncherName() 2244 { 2245 return _launcher_name; 2246 } 2247 2248 jint 2249 GetErgoPolicy() 2250 { 2251 return _ergo_policy; 2252 } 2253 2254 jboolean 2255 IsJavaArgs() 2256 { 2257 return _is_java_args; 2258 } 2259 2260 static jboolean 2261 IsWildCardEnabled() 2262 { 2263 return _wc_enabled; 2264 } 2265 2266 int 2267 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 2268 int argc, char **argv, 2269 int mode, char *what, int ret) 2270 { 2271 2272 /* 2273 * If user doesn't specify stack size, check if VM has a preference. 2274 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 2275 * return its default stack size through the init args structure. 2276 */ 2277 if (threadStackSize == 0) { 2278 struct JDK1_1InitArgs args1_1; 2279 memset((void*)&args1_1, 0, sizeof(args1_1)); 2280 args1_1.version = JNI_VERSION_1_1; 2281 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 2282 if (args1_1.javaStackSize > 0) { 2283 threadStackSize = args1_1.javaStackSize; 2284 } 2285 } 2286 2287 { /* Create a new thread to create JVM and invoke main method */ 2288 JavaMainArgs args; 2289 int rslt; 2290 2291 args.argc = argc; 2292 args.argv = argv; 2293 args.mode = mode; 2294 args.what = what; 2295 args.ifn = *ifn; 2296 2297 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args); 2298 /* If the caller has deemed there is an error we 2299 * simply return that, otherwise we return the value of 2300 * the callee 2301 */ 2302 return (ret != 0) ? ret : rslt; 2303 } 2304 } 2305 2306 static void 2307 DumpState() 2308 { 2309 if (!JLI_IsTraceLauncher()) return ; 2310 printf("Launcher state:\n"); 2311 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex()); 2312 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 2313 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 2314 printf("\tprogram name:%s\n", GetProgramName()); 2315 printf("\tlauncher name:%s\n", GetLauncherName()); 2316 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 2317 printf("\tfullversion:%s\n", GetFullVersion()); 2318 printf("\tergo_policy:"); 2319 switch(GetErgoPolicy()) { 2320 case NEVER_SERVER_CLASS: 2321 printf("NEVER_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 2322 break; 2323 case ALWAYS_SERVER_CLASS: 2324 printf("ALWAYS_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 2325 break; 2326 default: 2327 printf("DEFAULT_ERGONOMICS_POLICY\n"); 2328 } 2329 } 2330 2331 /* 2332 * Return JNI_TRUE for an option string that has no effect but should 2333 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On 2334 * Solaris SPARC, this screening needs to be done if: 2335 * -d32 or -d64 is passed to a binary with an unmatched data model 2336 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the 2337 * exec to the proper binary). In the case of when the data model and the 2338 * requested version is matched, an exec would not occur, and these options 2339 * were erroneously passed to the vm. 2340 */ 2341 jboolean 2342 RemovableOption(char * option) 2343 { 2344 /* 2345 * Unconditionally remove both -d32 and -d64 options since only 2346 * the last such options has an effect; e.g. 2347 * java -d32 -d64 -d32 -version 2348 * is equivalent to 2349 * java -d32 -version 2350 */ 2351 2352 if( (JLI_StrCCmp(option, "-d32") == 0 ) || 2353 (JLI_StrCCmp(option, "-d64") == 0 ) ) 2354 return JNI_TRUE; 2355 else 2356 return JNI_FALSE; 2357 } 2358 2359 /* 2360 * A utility procedure to always print to stderr 2361 */ 2362 void 2363 JLI_ReportMessage(const char* fmt, ...) 2364 { 2365 va_list vl; 2366 va_start(vl, fmt); 2367 vfprintf(stderr, fmt, vl); 2368 fprintf(stderr, "\n"); 2369 va_end(vl); 2370 }