1 /* 2 * Copyright (c) 1995, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 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 #define USE_STDERR JNI_TRUE /* we usually print to stderr */ 65 #define USE_STDOUT JNI_FALSE 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 printTo = USE_STDERR; /* where to print version/usage */ 71 static jboolean printXUsage = JNI_FALSE; /* print and exit*/ 72 static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */ 73 static char *showSettings = NULL; /* print but continue */ 74 static jboolean showResolvedModules = JNI_FALSE; 75 static jboolean listModules = JNI_FALSE; 76 static char *describeModule = NULL; 77 static jboolean validateModules = JNI_FALSE; 78 79 static const char *_program_name; 80 static const char *_launcher_name; 81 static jboolean _is_java_args = JNI_FALSE; 82 static jboolean _have_classpath = JNI_FALSE; 83 static const char *_fVersion; 84 static jboolean _wc_enabled = JNI_FALSE; 85 86 /* 87 * Entries for splash screen environment variables. 88 * putenv is performed in SelectVersion. We need 89 * them in memory until UnsetEnv, so they are made static 90 * global instead of auto local. 91 */ 92 static char* splash_file_entry = NULL; 93 static char* splash_jar_entry = NULL; 94 95 /* 96 * List of VM options to be specified when the VM is created. 97 */ 98 static JavaVMOption *options; 99 static int numOptions, maxOptions; 100 101 /* 102 * Prototypes for functions internal to launcher. 103 */ 104 static void SetClassPath(const char *s); 105 static void SetMainModule(const char *s); 106 static void SelectVersion(int argc, char **argv, char **main_class); 107 static void SetJvmEnvironment(int argc, char **argv); 108 static jboolean ParseArguments(int *pargc, char ***pargv, 109 int *pmode, char **pwhat, 110 int *pret, const char *jrepath); 111 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 112 InvocationFunctions *ifn); 113 static jstring NewPlatformString(JNIEnv *env, char *s); 114 static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 115 static jclass GetApplicationClass(JNIEnv *env); 116 117 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 118 static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 119 static void SetApplicationClassPath(const char**); 120 121 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF); 122 static void PrintUsage(JNIEnv* env, jboolean doXUsage); 123 static void ShowSettings(JNIEnv* env, char *optString); 124 static void ShowResolvedModules(JNIEnv* env); 125 static void ListModules(JNIEnv* env); 126 static void DescribeModule(JNIEnv* env, char* optString); 127 static jboolean ValidateModules(JNIEnv* env); 128 129 static void SetPaths(int argc, char **argv); 130 131 static void DumpState(); 132 133 enum OptionKind { 134 LAUNCHER_OPTION = 0, 135 LAUNCHER_OPTION_WITH_ARGUMENT, 136 LAUNCHER_MAIN_OPTION, 137 VM_LONG_OPTION, 138 VM_LONG_OPTION_WITH_ARGUMENT, 139 VM_OPTION 140 }; 141 142 static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue); 143 static jboolean IsOptionWithArgument(int argc, char **argv); 144 145 /* Maximum supported entries from jvm.cfg. */ 146 #define INIT_MAX_KNOWN_VMS 10 147 148 /* Values for vmdesc.flag */ 149 enum vmdesc_flag { 150 VM_UNKNOWN = -1, 151 VM_KNOWN, 152 VM_ALIASED_TO, 153 VM_WARN, 154 VM_ERROR, 155 VM_IF_SERVER_CLASS, 156 VM_IGNORE 157 }; 158 159 struct vmdesc { 160 char *name; 161 int flag; 162 char *alias; 163 char *server_class; 164 }; 165 static struct vmdesc *knownVMs = NULL; 166 static int knownVMsCount = 0; 167 static int knownVMsLimit = 0; 168 169 static void GrowKnownVMs(int minimum); 170 static int KnownVMIndex(const char* name); 171 static void FreeKnownVMs(); 172 static jboolean IsWildCardEnabled(); 173 174 /* 175 * This reports error. VM will not be created and no usage is printed. 176 */ 177 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \ 178 do { \ 179 if (!AC_ok) { \ 180 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 181 printUsage = JNI_FALSE; \ 182 *pret = 1; \ 183 return JNI_FALSE; \ 184 } \ 185 } while (JNI_FALSE) 186 187 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \ 188 do { \ 189 if (AC_arg_count < 1) { \ 190 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 191 printUsage = JNI_TRUE; \ 192 *pret = 1; \ 193 return JNI_TRUE; \ 194 } \ 195 } while (JNI_FALSE) 196 197 /* 198 * Running Java code in primordial thread caused many problems. We will 199 * create a new thread to invoke JVM. See 6316197 for more information. 200 */ 201 static jlong threadStackSize = 0; /* stack size of the new thread */ 202 static jlong maxHeapSize = 0; /* max heap size */ 203 static jlong initialHeapSize = 0; /* inital heap size */ 204 205 /* 206 * A minimum -Xss stack size suitable for all platforms. 207 */ 208 #ifndef STACK_SIZE_MINIMUM 209 #define STACK_SIZE_MINIMUM (64 * KB) 210 #endif 211 212 /* 213 * Entry point. 214 */ 215 int 216 JLI_Launch(int argc, char ** argv, /* main argc, argc */ 217 int jargc, const char** jargv, /* java args */ 218 int appclassc, const char** appclassv, /* app classpath */ 219 const char* fullversion, /* full version defined */ 220 const char* dotversion, /* UNUSED dot version defined */ 221 const char* pname, /* program name */ 222 const char* lname, /* launcher name */ 223 jboolean javaargs, /* JAVA_ARGS */ 224 jboolean cpwildcard, /* classpath wildcard*/ 225 jboolean javaw, /* windows-only javaw */ 226 jint ergo /* unused */ 227 ) 228 { 229 int mode = LM_UNKNOWN; 230 char *what = NULL; 231 char *main_class = NULL; 232 int ret; 233 InvocationFunctions ifn; 234 jlong start, end; 235 char jvmpath[MAXPATHLEN]; 236 char jrepath[MAXPATHLEN]; 237 char jvmcfg[MAXPATHLEN]; 238 239 _fVersion = fullversion; 240 _launcher_name = lname; 241 _program_name = pname; 242 _is_java_args = javaargs; 243 _wc_enabled = cpwildcard; 244 245 InitLauncher(javaw); 246 DumpState(); 247 if (JLI_IsTraceLauncher()) { 248 int i; 249 printf("Java args:\n"); 250 for (i = 0; i < jargc ; i++) { 251 printf("jargv[%d] = %s\n", i, jargv[i]); 252 } 253 printf("Command line args:\n"); 254 for (i = 0; i < argc ; i++) { 255 printf("argv[%d] = %s\n", i, argv[i]); 256 } 257 AddOption("-Dsun.java.launcher.diag=true", NULL); 258 } 259 260 /* 261 * SelectVersion() has several responsibilities: 262 * 263 * 1) Disallow specification of another JRE. With 1.9, another 264 * version of the JRE cannot be invoked. 265 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since 266 * all mJRE directives have been stripped from the request but 267 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been 268 * invoked from the command line. 269 */ 270 SelectVersion(argc, argv, &main_class); 271 272 CreateExecutionEnvironment(&argc, &argv, 273 jrepath, sizeof(jrepath), 274 jvmpath, sizeof(jvmpath), 275 jvmcfg, sizeof(jvmcfg)); 276 277 if (!IsJavaArgs()) { 278 SetJvmEnvironment(argc,argv); 279 } 280 281 ifn.CreateJavaVM = 0; 282 ifn.GetDefaultJavaVMInitArgs = 0; 283 284 if (JLI_IsTraceLauncher()) { 285 start = CounterGet(); 286 } 287 288 if (!LoadJavaVM(jvmpath, &ifn)) { 289 return(6); 290 } 291 292 if (JLI_IsTraceLauncher()) { 293 end = CounterGet(); 294 } 295 296 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", 297 (long)(jint)Counter2Micros(end-start)); 298 299 ++argv; 300 --argc; 301 302 if (IsJavaArgs()) { 303 /* Preprocess wrapper arguments */ 304 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 305 if (!AddApplicationOptions(appclassc, appclassv)) { 306 return(1); 307 } 308 } else { 309 /* Set default CLASSPATH */ 310 char* cpath = getenv("CLASSPATH"); 311 if (cpath != NULL) { 312 SetClassPath(cpath); 313 } 314 } 315 316 /* Parse command line options; if the return value of 317 * ParseArguments is false, the program should exit. 318 */ 319 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) 320 { 321 return(ret); 322 } 323 324 /* Override class path if -jar flag was specified */ 325 if (mode == LM_JAR) { 326 SetClassPath(what); /* Override class path */ 327 } 328 329 /* set the -Dsun.java.command pseudo property */ 330 SetJavaCommandLineProp(what, argc, argv); 331 332 /* Set the -Dsun.java.launcher pseudo property */ 333 SetJavaLauncherProp(); 334 335 /* set the -Dsun.java.launcher.* platform properties */ 336 SetJavaLauncherPlatformProps(); 337 338 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); 339 } 340 /* 341 * Always detach the main thread so that it appears to have ended when 342 * the application's main method exits. This will invoke the 343 * uncaught exception handler machinery if main threw an 344 * exception. An uncaught exception handler cannot change the 345 * launcher's return code except by calling System.exit. 346 * 347 * Wait for all non-daemon threads to end, then destroy the VM. 348 * This will actually create a trivial new Java waiter thread 349 * named "DestroyJavaVM", but this will be seen as a different 350 * thread from the one that executed main, even though they are 351 * the same C thread. This allows mainThread.join() and 352 * mainThread.isAlive() to work as expected. 353 */ 354 #define LEAVE() \ 355 do { \ 356 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \ 357 JLI_ReportErrorMessage(JVM_ERROR2); \ 358 ret = 1; \ 359 } \ 360 if (JNI_TRUE) { \ 361 (*vm)->DestroyJavaVM(vm); \ 362 return ret; \ 363 } \ 364 } while (JNI_FALSE) 365 366 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \ 367 do { \ 368 if ((*env)->ExceptionOccurred(env)) { \ 369 JLI_ReportExceptionDescription(env); \ 370 LEAVE(); \ 371 } \ 372 if ((CENL_exception) == NULL) { \ 373 JLI_ReportErrorMessage(JNI_ERROR); \ 374 LEAVE(); \ 375 } \ 376 } while (JNI_FALSE) 377 378 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \ 379 do { \ 380 if ((*env)->ExceptionOccurred(env)) { \ 381 JLI_ReportExceptionDescription(env); \ 382 ret = (CEL_return_value); \ 383 LEAVE(); \ 384 } \ 385 } while (JNI_FALSE) 386 387 388 int JNICALL 389 JavaMain(void * _args) 390 { 391 JavaMainArgs *args = (JavaMainArgs *)_args; 392 int argc = args->argc; 393 char **argv = args->argv; 394 int mode = args->mode; 395 char *what = args->what; 396 InvocationFunctions ifn = args->ifn; 397 398 JavaVM *vm = 0; 399 JNIEnv *env = 0; 400 jclass mainClass = NULL; 401 jclass appClass = NULL; // actual application class being launched 402 jmethodID mainID; 403 jobjectArray mainArgs; 404 int ret = 0; 405 jlong start, end; 406 407 RegisterThread(); 408 409 /* Initialize the virtual machine */ 410 start = CounterGet(); 411 if (!InitializeJVM(&vm, &env, &ifn)) { 412 JLI_ReportErrorMessage(JVM_ERROR1); 413 exit(1); 414 } 415 416 if (showSettings != NULL) { 417 ShowSettings(env, showSettings); 418 CHECK_EXCEPTION_LEAVE(1); 419 } 420 421 // show resolved modules and continue 422 if (showResolvedModules) { 423 ShowResolvedModules(env); 424 CHECK_EXCEPTION_LEAVE(1); 425 } 426 427 // list observable modules, then exit 428 if (listModules) { 429 ListModules(env); 430 CHECK_EXCEPTION_LEAVE(1); 431 LEAVE(); 432 } 433 434 // describe a module, then exit 435 if (describeModule != NULL) { 436 DescribeModule(env, describeModule); 437 CHECK_EXCEPTION_LEAVE(1); 438 LEAVE(); 439 } 440 441 // validate modules on the module path, then exit 442 if (validateModules) { 443 jboolean okay = ValidateModules(env); 444 CHECK_EXCEPTION_LEAVE(1); 445 if (!okay) ret = 1; 446 LEAVE(); 447 } 448 449 if (printVersion || showVersion) { 450 PrintJavaVersion(env, showVersion); 451 CHECK_EXCEPTION_LEAVE(0); 452 if (printVersion) { 453 LEAVE(); 454 } 455 } 456 457 /* If the user specified neither a class name nor a JAR file */ 458 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 459 PrintUsage(env, printXUsage); 460 CHECK_EXCEPTION_LEAVE(1); 461 LEAVE(); 462 } 463 464 FreeKnownVMs(); /* after last possible PrintUsage */ 465 466 if (JLI_IsTraceLauncher()) { 467 end = CounterGet(); 468 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 469 (long)(jint)Counter2Micros(end-start)); 470 } 471 472 /* At this stage, argc/argv have the application's arguments */ 473 if (JLI_IsTraceLauncher()){ 474 int i; 475 printf("%s is '%s'\n", launchModeNames[mode], what); 476 printf("App's argc is %d\n", argc); 477 for (i=0; i < argc; i++) { 478 printf(" argv[%2d] = '%s'\n", i, argv[i]); 479 } 480 } 481 482 ret = 1; 483 484 /* 485 * Get the application's main class. It also checks if the main 486 * method exists. 487 * 488 * See bugid 5030265. The Main-Class name has already been parsed 489 * from the manifest, but not parsed properly for UTF-8 support. 490 * Hence the code here ignores the value previously extracted and 491 * uses the pre-existing code to reextract the value. This is 492 * possibly an end of release cycle expedient. However, it has 493 * also been discovered that passing some character sets through 494 * the environment has "strange" behavior on some variants of 495 * Windows. Hence, maybe the manifest parsing code local to the 496 * launcher should never be enhanced. 497 * 498 * Hence, future work should either: 499 * 1) Correct the local parsing code and verify that the 500 * Main-Class attribute gets properly passed through 501 * all environments, 502 * 2) Remove the vestages of maintaining main_class through 503 * the environment (and remove these comments). 504 * 505 * This method also correctly handles launching existing JavaFX 506 * applications that may or may not have a Main-Class manifest entry. 507 */ 508 mainClass = LoadMainClass(env, mode, what); 509 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 510 /* 511 * In some cases when launching an application that needs a helper, e.g., a 512 * JavaFX application with no main method, the mainClass will not be the 513 * applications own main class but rather a helper class. To keep things 514 * consistent in the UI we need to track and report the application main class. 515 */ 516 appClass = GetApplicationClass(env); 517 NULL_CHECK_RETURN_VALUE(appClass, -1); 518 519 /* Build platform specific argument array */ 520 mainArgs = CreateApplicationArgs(env, argv, argc); 521 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 522 523 if (dryRun) { 524 ret = 0; 525 LEAVE(); 526 } 527 528 /* 529 * PostJVMInit uses the class name as the application name for GUI purposes, 530 * for example, on OSX this sets the application name in the menu bar for 531 * both SWT and JavaFX. So we'll pass the actual application class here 532 * instead of mainClass as that may be a launcher or helper class instead 533 * of the application class. 534 */ 535 PostJVMInit(env, appClass, vm); 536 CHECK_EXCEPTION_LEAVE(1); 537 538 /* 539 * The LoadMainClass not only loads the main class, it will also ensure 540 * that the main method's signature is correct, therefore further checking 541 * is not required. The main method is invoked here so that extraneous java 542 * stacks are not in the application stack trace. 543 */ 544 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 545 "([Ljava/lang/String;)V"); 546 CHECK_EXCEPTION_NULL_LEAVE(mainID); 547 548 /* Invoke main method. */ 549 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 550 551 /* 552 * The launcher's exit code (in the absence of calls to 553 * System.exit) will be non-zero if main threw an exception. 554 */ 555 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 556 557 LEAVE(); 558 } 559 560 /* 561 * Test if the given name is one of the class path options. 562 */ 563 static jboolean 564 IsClassPathOption(const char* name) { 565 return JLI_StrCmp(name, "-classpath") == 0 || 566 JLI_StrCmp(name, "-cp") == 0 || 567 JLI_StrCmp(name, "--class-path") == 0; 568 } 569 570 /* 571 * Test if the given name is a launcher option taking the main entry point. 572 */ 573 static jboolean 574 IsLauncherMainOption(const char* name) { 575 return JLI_StrCmp(name, "--module") == 0 || 576 JLI_StrCmp(name, "-m") == 0; 577 } 578 579 /* 580 * Test if the given name is a white-space launcher option. 581 */ 582 static jboolean 583 IsLauncherOption(const char* name) { 584 return IsClassPathOption(name) || 585 IsLauncherMainOption(name) || 586 JLI_StrCmp(name, "--describe-module") == 0 || 587 JLI_StrCmp(name, "-d") == 0; 588 } 589 590 /* 591 * Test if the given name is a module-system white-space option that 592 * will be passed to the VM with its corresponding long-form option 593 * name and "=" delimiter. 594 */ 595 static jboolean 596 IsModuleOption(const char* name) { 597 return JLI_StrCmp(name, "--module-path") == 0 || 598 JLI_StrCmp(name, "-p") == 0 || 599 JLI_StrCmp(name, "--upgrade-module-path") == 0 || 600 JLI_StrCmp(name, "--add-modules") == 0 || 601 JLI_StrCmp(name, "--limit-modules") == 0 || 602 JLI_StrCmp(name, "--add-exports") == 0 || 603 JLI_StrCmp(name, "--add-opens") == 0 || 604 JLI_StrCmp(name, "--add-reads") == 0 || 605 JLI_StrCmp(name, "--patch-module") == 0; 606 } 607 608 static jboolean 609 IsLongFormModuleOption(const char* name) { 610 return JLI_StrCCmp(name, "--module-path=") == 0 || 611 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 || 612 JLI_StrCCmp(name, "--add-modules=") == 0 || 613 JLI_StrCCmp(name, "--limit-modules=") == 0 || 614 JLI_StrCCmp(name, "--add-exports=") == 0 || 615 JLI_StrCCmp(name, "--add-reads=") == 0 || 616 JLI_StrCCmp(name, "--patch-module=") == 0; 617 } 618 619 /* 620 * Test if the given name has a white space option. 621 */ 622 jboolean 623 IsWhiteSpaceOption(const char* name) { 624 return IsModuleOption(name) || 625 IsLauncherOption(name); 626 } 627 628 /* 629 * Checks the command line options to find which JVM type was 630 * specified. If no command line option was given for the JVM type, 631 * the default type is used. The environment variable 632 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 633 * checked as ways of specifying which JVM type to invoke. 634 */ 635 char * 636 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 637 int i, argi; 638 int argc; 639 char **newArgv; 640 int newArgvIdx = 0; 641 int isVMType; 642 int jvmidx = -1; 643 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 644 645 argc = *pargc; 646 647 /* To make things simpler we always copy the argv array */ 648 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 649 650 /* The program name is always present */ 651 newArgv[newArgvIdx++] = (*argv)[0]; 652 653 for (argi = 1; argi < argc; argi++) { 654 char *arg = (*argv)[argi]; 655 isVMType = 0; 656 657 if (IsJavaArgs()) { 658 if (arg[0] != '-') { 659 newArgv[newArgvIdx++] = arg; 660 continue; 661 } 662 } else { 663 if (IsWhiteSpaceOption(arg)) { 664 newArgv[newArgvIdx++] = arg; 665 argi++; 666 if (argi < argc) { 667 newArgv[newArgvIdx++] = (*argv)[argi]; 668 } 669 continue; 670 } 671 if (arg[0] != '-') break; 672 } 673 674 /* Did the user pass an explicit VM type? */ 675 i = KnownVMIndex(arg); 676 if (i >= 0) { 677 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 678 isVMType = 1; 679 *pargc = *pargc - 1; 680 } 681 682 /* Did the user specify an "alternate" VM? */ 683 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 684 isVMType = 1; 685 jvmtype = arg+((arg[1]=='X')? 10 : 12); 686 jvmidx = -1; 687 } 688 689 if (!isVMType) { 690 newArgv[newArgvIdx++] = arg; 691 } 692 } 693 694 /* 695 * Finish copying the arguments if we aborted the above loop. 696 * NOTE that if we aborted via "break" then we did NOT copy the 697 * last argument above, and in addition argi will be less than 698 * argc. 699 */ 700 while (argi < argc) { 701 newArgv[newArgvIdx++] = (*argv)[argi]; 702 argi++; 703 } 704 705 /* argv is null-terminated */ 706 newArgv[newArgvIdx] = 0; 707 708 /* Copy back argv */ 709 *argv = newArgv; 710 *pargc = newArgvIdx; 711 712 /* use the default VM type if not specified (no alias processing) */ 713 if (jvmtype == NULL) { 714 char* result = knownVMs[0].name+1; 715 JLI_TraceLauncher("Default VM: %s\n", result); 716 return result; 717 } 718 719 /* if using an alternate VM, no alias processing */ 720 if (jvmidx < 0) 721 return jvmtype; 722 723 /* Resolve aliases first */ 724 { 725 int loopCount = 0; 726 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 727 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 728 729 if (loopCount > knownVMsCount) { 730 if (!speculative) { 731 JLI_ReportErrorMessage(CFG_ERROR1); 732 exit(1); 733 } else { 734 return "ERROR"; 735 /* break; */ 736 } 737 } 738 739 if (nextIdx < 0) { 740 if (!speculative) { 741 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 742 exit(1); 743 } else { 744 return "ERROR"; 745 } 746 } 747 jvmidx = nextIdx; 748 jvmtype = knownVMs[jvmidx].name+1; 749 loopCount++; 750 } 751 } 752 753 switch (knownVMs[jvmidx].flag) { 754 case VM_WARN: 755 if (!speculative) { 756 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 757 } 758 /* fall through */ 759 case VM_IGNORE: 760 jvmtype = knownVMs[jvmidx=0].name + 1; 761 /* fall through */ 762 case VM_KNOWN: 763 break; 764 case VM_ERROR: 765 if (!speculative) { 766 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 767 exit(1); 768 } else { 769 return "ERROR"; 770 } 771 } 772 773 return jvmtype; 774 } 775 776 /* 777 * This method must be called before the VM is loaded, primarily 778 * used to parse and set any VM related options or env variables. 779 * This function is non-destructive leaving the argument list intact. 780 */ 781 static void 782 SetJvmEnvironment(int argc, char **argv) { 783 784 static const char* NMT_Env_Name = "NMT_LEVEL_"; 785 int i; 786 /* process only the launcher arguments */ 787 for (i = 0; i < argc; i++) { 788 char *arg = argv[i]; 789 /* 790 * Since this must be a VM flag we stop processing once we see 791 * an argument the launcher would not have processed beyond (such 792 * as -version or -h), or an argument that indicates the following 793 * arguments are for the application (i.e. the main class name, or 794 * the -jar argument). 795 */ 796 if (i > 0) { 797 char *prev = argv[i - 1]; 798 // skip non-dash arg preceded by class path specifiers 799 if (*arg != '-' && IsWhiteSpaceOption(prev)) { 800 continue; 801 } 802 803 if (*arg != '-' || isTerminalOpt(arg)) { 804 return; 805 } 806 } 807 /* 808 * The following case checks for "-XX:NativeMemoryTracking=value". 809 * If value is non null, an environmental variable set to this value 810 * will be created to be used by the JVM. 811 * The argument is passed to the JVM, which will check validity. 812 * The JVM is responsible for removing the env variable. 813 */ 814 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { 815 int retval; 816 // get what follows this parameter, include "=" 817 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); 818 if (JLI_StrLen(arg) > pnlen) { 819 char* value = arg + pnlen; 820 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits 821 822 /* 823 * ensures that malloc successful 824 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call 825 * that could store the address. 826 */ 827 char * pbuf = (char*)JLI_MemAlloc(pbuflen); 828 829 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); 830 retval = JLI_PutEnv(pbuf); 831 if (JLI_IsTraceLauncher()) { 832 char* envName; 833 char* envBuf; 834 835 // ensures that malloc successful 836 envName = (char*)JLI_MemAlloc(pbuflen); 837 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); 838 839 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); 840 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); 841 envBuf = getenv(envName); 842 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); 843 free(envName); 844 } 845 } 846 } 847 } 848 } 849 850 /* copied from HotSpot function "atomll()" */ 851 static int 852 parse_size(const char *s, jlong *result) { 853 jlong n = 0; 854 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n); 855 if (args_read != 1) { 856 return 0; 857 } 858 while (*s != '\0' && *s >= '0' && *s <= '9') { 859 s++; 860 } 861 // 4705540: illegal if more characters are found after the first non-digit 862 if (JLI_StrLen(s) > 1) { 863 return 0; 864 } 865 switch (*s) { 866 case 'T': case 't': 867 *result = n * GB * KB; 868 return 1; 869 case 'G': case 'g': 870 *result = n * GB; 871 return 1; 872 case 'M': case 'm': 873 *result = n * MB; 874 return 1; 875 case 'K': case 'k': 876 *result = n * KB; 877 return 1; 878 case '\0': 879 *result = n; 880 return 1; 881 default: 882 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 883 return 0; 884 } 885 } 886 887 /* 888 * Adds a new VM option with the given name and value. 889 */ 890 void 891 AddOption(char *str, void *info) 892 { 893 /* 894 * Expand options array if needed to accommodate at least one more 895 * VM option. 896 */ 897 if (numOptions >= maxOptions) { 898 if (options == 0) { 899 maxOptions = 4; 900 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 901 } else { 902 JavaVMOption *tmp; 903 maxOptions *= 2; 904 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 905 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 906 JLI_MemFree(options); 907 options = tmp; 908 } 909 } 910 options[numOptions].optionString = str; 911 options[numOptions++].extraInfo = info; 912 913 if (JLI_StrCCmp(str, "-Xss") == 0) { 914 jlong tmp; 915 if (parse_size(str + 4, &tmp)) { 916 threadStackSize = tmp; 917 /* 918 * Make sure the thread stack size is big enough that we won't get a stack 919 * overflow before the JVM startup code can check to make sure the stack 920 * is big enough. 921 */ 922 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) { 923 threadStackSize = STACK_SIZE_MINIMUM; 924 } 925 } 926 } 927 928 if (JLI_StrCCmp(str, "-Xmx") == 0) { 929 jlong tmp; 930 if (parse_size(str + 4, &tmp)) { 931 maxHeapSize = tmp; 932 } 933 } 934 935 if (JLI_StrCCmp(str, "-Xms") == 0) { 936 jlong tmp; 937 if (parse_size(str + 4, &tmp)) { 938 initialHeapSize = tmp; 939 } 940 } 941 } 942 943 static void 944 SetClassPath(const char *s) 945 { 946 char *def; 947 const char *orig = s; 948 static const char format[] = "-Djava.class.path=%s"; 949 /* 950 * usually we should not get a null pointer, but there are cases where 951 * we might just get one, in which case we simply ignore it, and let the 952 * caller deal with it 953 */ 954 if (s == NULL) 955 return; 956 s = JLI_WildcardExpandClasspath(s); 957 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 958 // s is became corrupted after expanding wildcards 959 return; 960 def = JLI_MemAlloc(sizeof(format) 961 - 2 /* strlen("%s") */ 962 + JLI_StrLen(s)); 963 sprintf(def, format, s); 964 AddOption(def, NULL); 965 if (s != orig) 966 JLI_MemFree((char *) s); 967 _have_classpath = JNI_TRUE; 968 } 969 970 static void 971 AddLongFormOption(const char *option, const char *arg) 972 { 973 static const char format[] = "%s=%s"; 974 char *def; 975 size_t def_len; 976 977 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1; 978 def = JLI_MemAlloc(def_len); 979 JLI_Snprintf(def, def_len, format, option, arg); 980 AddOption(def, NULL); 981 } 982 983 static void 984 SetMainModule(const char *s) 985 { 986 static const char format[] = "-Djdk.module.main=%s"; 987 char* slash = JLI_StrChr(s, '/'); 988 size_t s_len, def_len; 989 char *def; 990 991 /* value may be <module> or <module>/<mainclass> */ 992 if (slash == NULL) { 993 s_len = JLI_StrLen(s); 994 } else { 995 s_len = (size_t) (slash - s); 996 } 997 def_len = sizeof(format) 998 - 2 /* strlen("%s") */ 999 + s_len; 1000 def = JLI_MemAlloc(def_len); 1001 JLI_Snprintf(def, def_len, format, s); 1002 AddOption(def, NULL); 1003 } 1004 1005 /* 1006 * The SelectVersion() routine ensures that an appropriate version of 1007 * the JRE is running. The specification for the appropriate version 1008 * is obtained from either the manifest of a jar file (preferred) or 1009 * from command line options. 1010 * The routine also parses splash screen command line options and 1011 * passes on their values in private environment variables. 1012 */ 1013 static void 1014 SelectVersion(int argc, char **argv, char **main_class) 1015 { 1016 char *arg; 1017 char *operand; 1018 char *version = NULL; 1019 char *jre = NULL; 1020 int jarflag = 0; 1021 int headlessflag = 0; 1022 int restrict_search = -1; /* -1 implies not known */ 1023 manifest_info info; 1024 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 1025 char *splash_file_name = NULL; 1026 char *splash_jar_name = NULL; 1027 char *env_in; 1028 int res; 1029 jboolean has_arg; 1030 1031 /* 1032 * If the version has already been selected, set *main_class 1033 * with the value passed through the environment (if any) and 1034 * simply return. 1035 */ 1036 1037 /* 1038 * This environmental variable can be set by mJRE capable JREs 1039 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been 1040 * stripped by those JREs. This environmental variable allows 1.9+ 1041 * JREs to be started by these mJRE capable JREs. 1042 * Note that mJRE directives in the jar manifest file would have been 1043 * ignored for a JRE started by another JRE... 1044 * .. skipped for JRE 1.5 and beyond. 1045 * .. not even checked for pre 1.5. 1046 */ 1047 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 1048 if (*env_in != '\0') 1049 *main_class = JLI_StringDup(env_in); 1050 return; 1051 } 1052 1053 /* 1054 * Scan through the arguments for options relevant to multiple JRE 1055 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8. 1056 * 1057 * This capability is no longer available with JRE versions 1.9 and later. 1058 * These command line options are reported as errors. 1059 */ 1060 1061 argc--; 1062 argv++; 1063 while ((arg = *argv) != 0 && *arg == '-') { 1064 has_arg = IsOptionWithArgument(argc, argv); 1065 if (JLI_StrCCmp(arg, "-version:") == 0) { 1066 JLI_ReportErrorMessage(SPC_ERROR1); 1067 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 1068 JLI_ReportErrorMessage(SPC_ERROR2); 1069 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) { 1070 JLI_ReportErrorMessage(SPC_ERROR2); 1071 } else { 1072 if (JLI_StrCmp(arg, "-jar") == 0) 1073 jarflag = 1; 1074 if (IsWhiteSpaceOption(arg)) { 1075 if (has_arg) { 1076 argc--; 1077 argv++; 1078 arg = *argv; 1079 } 1080 } 1081 1082 /* 1083 * Checking for headless toolkit option in the some way as AWT does: 1084 * "true" means true and any other value means false 1085 */ 1086 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 1087 headlessflag = 1; 1088 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 1089 headlessflag = 0; 1090 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1091 splash_file_name = arg+8; 1092 } 1093 } 1094 argc--; 1095 argv++; 1096 } 1097 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 1098 operand = NULL; 1099 } else { 1100 argc--; 1101 operand = *argv++; 1102 } 1103 1104 /* 1105 * If there is a jar file, read the manifest. If the jarfile can't be 1106 * read, the manifest can't be read from the jar file, or the manifest 1107 * is corrupt, issue the appropriate error messages and exit. 1108 * 1109 * Even if there isn't a jar file, construct a manifest_info structure 1110 * containing the command line information. It's a convenient way to carry 1111 * this data around. 1112 */ 1113 if (jarflag && operand) { 1114 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 1115 if (res == -1) 1116 JLI_ReportErrorMessage(JAR_ERROR2, operand); 1117 else 1118 JLI_ReportErrorMessage(JAR_ERROR3, operand); 1119 exit(1); 1120 } 1121 1122 /* 1123 * Command line splash screen option should have precedence 1124 * over the manifest, so the manifest data is used only if 1125 * splash_file_name has not been initialized above during command 1126 * line parsing 1127 */ 1128 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 1129 splash_file_name = info.splashscreen_image_file_name; 1130 splash_jar_name = operand; 1131 } 1132 } else { 1133 info.manifest_version = NULL; 1134 info.main_class = NULL; 1135 info.jre_version = NULL; 1136 info.jre_restrict_search = 0; 1137 } 1138 1139 /* 1140 * Passing on splash screen info in environment variables 1141 */ 1142 if (splash_file_name && !headlessflag) { 1143 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 1144 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1145 JLI_StrCat(splash_file_entry, splash_file_name); 1146 putenv(splash_file_entry); 1147 } 1148 if (splash_jar_name && !headlessflag) { 1149 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 1150 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 1151 JLI_StrCat(splash_jar_entry, splash_jar_name); 1152 putenv(splash_jar_entry); 1153 } 1154 1155 1156 /* 1157 * "Valid" returns (other than unrecoverable errors) follow. Set 1158 * main_class as a side-effect of this routine. 1159 */ 1160 if (info.main_class != NULL) 1161 *main_class = JLI_StringDup(info.main_class); 1162 1163 if (info.jre_version == NULL) { 1164 JLI_FreeManifest(); 1165 return; 1166 } 1167 1168 } 1169 1170 /* 1171 * Test if the current argv is an option, i.e. with a leading `-` 1172 * and followed with an argument without a leading `-`. 1173 */ 1174 static jboolean 1175 IsOptionWithArgument(int argc, char** argv) { 1176 char* option; 1177 char* arg; 1178 1179 if (argc <= 1) 1180 return JNI_FALSE; 1181 1182 option = *argv; 1183 arg = *(argv+1); 1184 return *option == '-' && *arg != '-'; 1185 } 1186 1187 /* 1188 * Gets the option, and its argument if the option has an argument. 1189 * It will update *pargc, **pargv to the next option. 1190 */ 1191 static int 1192 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) { 1193 int argc = *pargc; 1194 char** argv = *pargv; 1195 char* arg = *argv; 1196 1197 char* option = arg; 1198 char* value = NULL; 1199 char* equals = NULL; 1200 int kind = LAUNCHER_OPTION; 1201 jboolean has_arg = JNI_FALSE; 1202 1203 // check if this option may be a white-space option with an argument 1204 has_arg = IsOptionWithArgument(argc, argv); 1205 1206 argv++; --argc; 1207 if (IsLauncherOption(arg)) { 1208 if (has_arg) { 1209 value = *argv; 1210 argv++; --argc; 1211 } 1212 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION 1213 : LAUNCHER_OPTION_WITH_ARGUMENT; 1214 } else if (IsModuleOption(arg)) { 1215 kind = VM_LONG_OPTION_WITH_ARGUMENT; 1216 if (has_arg) { 1217 value = *argv; 1218 argv++; --argc; 1219 } 1220 1221 /* 1222 * Support short form alias 1223 */ 1224 if (JLI_StrCmp(arg, "-p") == 0) { 1225 option = "--module-path"; 1226 } 1227 1228 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) { 1229 value = equals+1; 1230 if (JLI_StrCCmp(arg, "--describe-module=") == 0 || 1231 JLI_StrCCmp(arg, "--module=") == 0 || 1232 JLI_StrCCmp(arg, "--class-path=") == 0) { 1233 kind = LAUNCHER_OPTION_WITH_ARGUMENT; 1234 } else { 1235 kind = VM_LONG_OPTION; 1236 } 1237 } 1238 1239 *pargc = argc; 1240 *pargv = argv; 1241 *poption = option; 1242 *pvalue = value; 1243 return kind; 1244 } 1245 1246 /* 1247 * Parses command line arguments. Returns JNI_FALSE if launcher 1248 * should exit without starting vm, returns JNI_TRUE if vm needs 1249 * to be started to process given options. *pret (the launcher 1250 * process return value) is set to 0 for a normal exit. 1251 */ 1252 static jboolean 1253 ParseArguments(int *pargc, char ***pargv, 1254 int *pmode, char **pwhat, 1255 int *pret, const char *jrepath) 1256 { 1257 int argc = *pargc; 1258 char **argv = *pargv; 1259 int mode = LM_UNKNOWN; 1260 char *arg; 1261 1262 *pret = 0; 1263 1264 while ((arg = *argv) != 0 && *arg == '-') { 1265 char *option = NULL; 1266 char *value = NULL; 1267 int kind = GetOpt(&argc, &argv, &option, &value); 1268 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0; 1269 jboolean has_arg_any_len = value != NULL; 1270 1271 /* 1272 * Option to set main entry point 1273 */ 1274 if (JLI_StrCmp(arg, "-jar") == 0) { 1275 ARG_CHECK(argc, ARG_ERROR2, arg); 1276 mode = LM_JAR; 1277 } else if (JLI_StrCmp(arg, "--module") == 0 || 1278 JLI_StrCCmp(arg, "--module=") == 0 || 1279 JLI_StrCmp(arg, "-m") == 0) { 1280 REPORT_ERROR (has_arg, ARG_ERROR5, arg); 1281 SetMainModule(value); 1282 mode = LM_MODULE; 1283 if (has_arg) { 1284 *pwhat = value; 1285 break; 1286 } 1287 } else if (JLI_StrCmp(arg, "--class-path") == 0 || 1288 JLI_StrCCmp(arg, "--class-path=") == 0 || 1289 JLI_StrCmp(arg, "-classpath") == 0 || 1290 JLI_StrCmp(arg, "-cp") == 0) { 1291 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg); 1292 SetClassPath(value); 1293 mode = LM_CLASS; 1294 } else if (JLI_StrCmp(arg, "--list-modules") == 0) { 1295 listModules = JNI_TRUE; 1296 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) { 1297 showResolvedModules = JNI_TRUE; 1298 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) { 1299 AddOption("-Djdk.module.validation=true", NULL); 1300 validateModules = JNI_TRUE; 1301 } else if (JLI_StrCmp(arg, "--describe-module") == 0 || 1302 JLI_StrCCmp(arg, "--describe-module=") == 0 || 1303 JLI_StrCmp(arg, "-d") == 0) { 1304 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg); 1305 describeModule = value; 1306 /* 1307 * Parse white-space options 1308 */ 1309 } else if (has_arg) { 1310 if (kind == VM_LONG_OPTION) { 1311 AddOption(option, NULL); 1312 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) { 1313 AddLongFormOption(option, value); 1314 } 1315 /* 1316 * Error missing argument 1317 */ 1318 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 || 1319 JLI_StrCmp(arg, "-p") == 0 || 1320 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) { 1321 REPORT_ERROR (has_arg, ARG_ERROR4, arg); 1322 1323 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) { 1324 REPORT_ERROR (has_arg, ARG_ERROR6, arg); 1325 /* 1326 * The following cases will cause the argument parsing to stop 1327 */ 1328 } else if (JLI_StrCmp(arg, "-help") == 0 || 1329 JLI_StrCmp(arg, "-h") == 0 || 1330 JLI_StrCmp(arg, "-?") == 0) { 1331 printUsage = JNI_TRUE; 1332 return JNI_TRUE; 1333 } else if (JLI_StrCmp(arg, "--help") == 0) { 1334 printUsage = JNI_TRUE; 1335 printTo = USE_STDOUT; 1336 return JNI_TRUE; 1337 } else if (JLI_StrCmp(arg, "-version") == 0) { 1338 printVersion = JNI_TRUE; 1339 return JNI_TRUE; 1340 } else if (JLI_StrCmp(arg, "--version") == 0) { 1341 printVersion = JNI_TRUE; 1342 printTo = USE_STDOUT; 1343 return JNI_TRUE; 1344 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1345 showVersion = JNI_TRUE; 1346 } else if (JLI_StrCmp(arg, "--show-version") == 0) { 1347 showVersion = JNI_TRUE; 1348 printTo = USE_STDOUT; 1349 } else if (JLI_StrCmp(arg, "--dry-run") == 0) { 1350 dryRun = JNI_TRUE; 1351 } else if (JLI_StrCmp(arg, "-X") == 0) { 1352 printXUsage = JNI_TRUE; 1353 return JNI_TRUE; 1354 } else if (JLI_StrCmp(arg, "--help-extra") == 0) { 1355 printXUsage = JNI_TRUE; 1356 printTo = USE_STDOUT; 1357 return JNI_TRUE; 1358 /* 1359 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1360 * In the latter case, any SUBOPT value not recognized will default to "all" 1361 */ 1362 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1363 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1364 showSettings = arg; 1365 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1366 AddOption("-Dsun.java.launcher.diag=true", NULL); 1367 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) { 1368 AddOption("-Djdk.module.showModuleResolution=true", NULL); 1369 /* 1370 * The following case provide backward compatibility with old-style 1371 * command line options. 1372 */ 1373 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1374 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1375 return JNI_FALSE; 1376 } else if (JLI_StrCmp(arg, "--full-version") == 0) { 1377 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion()); 1378 return JNI_FALSE; 1379 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1380 AddOption("-verbose:gc", NULL); 1381 } else if (JLI_StrCmp(arg, "-t") == 0) { 1382 AddOption("-Xt", NULL); 1383 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1384 AddOption("-Xtm", NULL); 1385 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1386 AddOption("-Xdebug", NULL); 1387 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1388 AddOption("-Xnoclassgc", NULL); 1389 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1390 AddOption("-Xverify:all", NULL); 1391 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1392 AddOption("-Xverify:all", NULL); 1393 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1394 AddOption("-Xverify:remote", NULL); 1395 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1396 AddOption("-Xverify:none", NULL); 1397 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1398 JLI_StrCCmp(arg, "-oss") == 0 || 1399 JLI_StrCCmp(arg, "-ms") == 0 || 1400 JLI_StrCCmp(arg, "-mx") == 0) { 1401 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1402 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1403 AddOption(tmp, NULL); 1404 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1405 JLI_StrCmp(arg, "-cs") == 0 || 1406 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1407 /* No longer supported */ 1408 JLI_ReportErrorMessage(ARG_WARN, arg); 1409 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1410 ; /* Ignore machine independent options already handled */ 1411 } else if (ProcessPlatformOption(arg)) { 1412 ; /* Processing of platform dependent options */ 1413 } else { 1414 /* java.class.path set on the command line */ 1415 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) { 1416 _have_classpath = JNI_TRUE; 1417 } 1418 AddOption(arg, NULL); 1419 } 1420 } 1421 1422 if (*pwhat == NULL && --argc >= 0) { 1423 *pwhat = *argv++; 1424 } 1425 1426 if (*pwhat == NULL) { 1427 /* LM_UNKNOWN okay for options that exit */ 1428 if (!listModules && !describeModule && !validateModules) { 1429 *pret = 1; 1430 } 1431 } else if (mode == LM_UNKNOWN) { 1432 /* default to LM_CLASS if -m, -jar and -cp options are 1433 * not specified */ 1434 if (!_have_classpath) { 1435 SetClassPath("."); 1436 } 1437 mode = LM_CLASS; 1438 } 1439 1440 if (argc >= 0) { 1441 *pargc = argc; 1442 *pargv = argv; 1443 } 1444 1445 *pmode = mode; 1446 1447 return JNI_TRUE; 1448 } 1449 1450 /* 1451 * Initializes the Java Virtual Machine. Also frees options array when 1452 * finished. 1453 */ 1454 static jboolean 1455 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1456 { 1457 JavaVMInitArgs args; 1458 jint r; 1459 1460 memset(&args, 0, sizeof(args)); 1461 args.version = JNI_VERSION_1_2; 1462 args.nOptions = numOptions; 1463 args.options = options; 1464 args.ignoreUnrecognized = JNI_FALSE; 1465 1466 if (JLI_IsTraceLauncher()) { 1467 int i = 0; 1468 printf("JavaVM args:\n "); 1469 printf("version 0x%08lx, ", (long)args.version); 1470 printf("ignoreUnrecognized is %s, ", 1471 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1472 printf("nOptions is %ld\n", (long)args.nOptions); 1473 for (i = 0; i < numOptions; i++) 1474 printf(" option[%2d] = '%s'\n", 1475 i, args.options[i].optionString); 1476 } 1477 1478 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1479 JLI_MemFree(options); 1480 return r == JNI_OK; 1481 } 1482 1483 static jclass helperClass = NULL; 1484 1485 jclass 1486 GetLauncherHelperClass(JNIEnv *env) 1487 { 1488 if (helperClass == NULL) { 1489 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1490 "sun/launcher/LauncherHelper")); 1491 } 1492 return helperClass; 1493 } 1494 1495 static jmethodID makePlatformStringMID = NULL; 1496 /* 1497 * Returns a new Java string object for the specified platform string. 1498 */ 1499 static jstring 1500 NewPlatformString(JNIEnv *env, char *s) 1501 { 1502 int len = (int)JLI_StrLen(s); 1503 jbyteArray ary; 1504 jclass cls = GetLauncherHelperClass(env); 1505 NULL_CHECK0(cls); 1506 if (s == NULL) 1507 return 0; 1508 1509 ary = (*env)->NewByteArray(env, len); 1510 if (ary != 0) { 1511 jstring str = 0; 1512 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1513 if (!(*env)->ExceptionOccurred(env)) { 1514 if (makePlatformStringMID == NULL) { 1515 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1516 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1517 } 1518 str = (*env)->CallStaticObjectMethod(env, cls, 1519 makePlatformStringMID, USE_STDERR, ary); 1520 CHECK_EXCEPTION_RETURN_VALUE(0); 1521 (*env)->DeleteLocalRef(env, ary); 1522 return str; 1523 } 1524 } 1525 return 0; 1526 } 1527 1528 /* 1529 * Returns a new array of Java string objects for the specified 1530 * array of platform strings. 1531 */ 1532 jobjectArray 1533 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1534 { 1535 jarray cls; 1536 jarray ary; 1537 int i; 1538 1539 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1540 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1541 CHECK_EXCEPTION_RETURN_VALUE(0); 1542 for (i = 0; i < strc; i++) { 1543 jstring str = NewPlatformString(env, *strv++); 1544 NULL_CHECK0(str); 1545 (*env)->SetObjectArrayElement(env, ary, i, str); 1546 (*env)->DeleteLocalRef(env, str); 1547 } 1548 return ary; 1549 } 1550 1551 /* 1552 * Loads a class and verifies that the main class is present and it is ok to 1553 * call it for more details refer to the java implementation. 1554 */ 1555 static jclass 1556 LoadMainClass(JNIEnv *env, int mode, char *name) 1557 { 1558 jmethodID mid; 1559 jstring str; 1560 jobject result; 1561 jlong start, end; 1562 jclass cls = GetLauncherHelperClass(env); 1563 NULL_CHECK0(cls); 1564 if (JLI_IsTraceLauncher()) { 1565 start = CounterGet(); 1566 } 1567 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1568 "checkAndLoadMain", 1569 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1570 1571 NULL_CHECK0(str = NewPlatformString(env, name)); 1572 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1573 USE_STDERR, mode, str)); 1574 1575 if (JLI_IsTraceLauncher()) { 1576 end = CounterGet(); 1577 printf("%ld micro seconds to load main class\n", 1578 (long)(jint)Counter2Micros(end-start)); 1579 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1580 } 1581 1582 return (jclass)result; 1583 } 1584 1585 static jclass 1586 GetApplicationClass(JNIEnv *env) 1587 { 1588 jmethodID mid; 1589 jclass appClass; 1590 jclass cls = GetLauncherHelperClass(env); 1591 NULL_CHECK0(cls); 1592 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1593 "getApplicationClass", 1594 "()Ljava/lang/Class;")); 1595 1596 appClass = (*env)->CallStaticObjectMethod(env, cls, mid); 1597 CHECK_EXCEPTION_RETURN_VALUE(0); 1598 return appClass; 1599 } 1600 1601 static char* expandWildcardOnLongOpt(char* arg) { 1602 char *p, *value; 1603 size_t optLen, valueLen; 1604 p = JLI_StrChr(arg, '='); 1605 1606 if (p == NULL || p[1] == '\0') { 1607 JLI_ReportErrorMessage(ARG_ERROR1, arg); 1608 exit(1); 1609 } 1610 p++; 1611 value = (char *) JLI_WildcardExpandClasspath(p); 1612 if (p == value) { 1613 // no wildcard 1614 return arg; 1615 } 1616 1617 optLen = p - arg; 1618 valueLen = JLI_StrLen(value); 1619 p = JLI_MemAlloc(optLen + valueLen + 1); 1620 memcpy(p, arg, optLen); 1621 memcpy(p + optLen, value, valueLen); 1622 p[optLen + valueLen] = '\0'; 1623 return p; 1624 } 1625 1626 /* 1627 * For tools, convert command line args thus: 1628 * javac -cp foo:foo/"*" -J-ms32m ... 1629 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1630 * 1631 * Takes 4 parameters, and returns the populated arguments 1632 */ 1633 static void 1634 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1635 { 1636 int argc = *pargc; 1637 char **argv = *pargv; 1638 int nargc = argc + jargc; 1639 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1640 int i; 1641 1642 *pargc = nargc; 1643 *pargv = nargv; 1644 1645 /* Copy the VM arguments (i.e. prefixed with -J) */ 1646 for (i = 0; i < jargc; i++) { 1647 const char *arg = jargv[i]; 1648 if (arg[0] == '-' && arg[1] == 'J') { 1649 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1650 } 1651 } 1652 1653 for (i = 0; i < argc; i++) { 1654 char *arg = argv[i]; 1655 if (arg[0] == '-' && arg[1] == 'J') { 1656 if (arg[2] == '\0') { 1657 JLI_ReportErrorMessage(ARG_ERROR3); 1658 exit(1); 1659 } 1660 *nargv++ = arg + 2; 1661 } 1662 } 1663 1664 /* Copy the rest of the arguments */ 1665 for (i = 0; i < jargc ; i++) { 1666 const char *arg = jargv[i]; 1667 if (arg[0] != '-' || arg[1] != 'J') { 1668 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1669 } 1670 } 1671 for (i = 0; i < argc; i++) { 1672 char *arg = argv[i]; 1673 if (arg[0] == '-') { 1674 if (arg[1] == 'J') 1675 continue; 1676 if (IsWildCardEnabled()) { 1677 if (IsClassPathOption(arg) && i < argc - 1) { 1678 *nargv++ = arg; 1679 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1680 i++; 1681 continue; 1682 } 1683 if (JLI_StrCCmp(arg, "--class-path=") == 0) { 1684 *nargv++ = expandWildcardOnLongOpt(arg); 1685 continue; 1686 } 1687 } 1688 } 1689 *nargv++ = arg; 1690 } 1691 *nargv = 0; 1692 } 1693 1694 /* 1695 * For our tools, we try to add 3 VM options: 1696 * -Denv.class.path=<envcp> 1697 * -Dapplication.home=<apphome> 1698 * -Djava.class.path=<appcp> 1699 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1700 * tells javac where to find binary classes through this environment 1701 * variable. Notice that users will be able to compile against our 1702 * tools classes (sun.tools.javac.Main) only if they explicitly add 1703 * tools.jar to CLASSPATH. 1704 * <apphome> is the directory where the application is installed. 1705 * <appcp> is the classpath to where our apps' classfiles are. 1706 */ 1707 static jboolean 1708 AddApplicationOptions(int cpathc, const char **cpathv) 1709 { 1710 char *envcp, *appcp, *apphome; 1711 char home[MAXPATHLEN]; /* application home */ 1712 char separator[] = { PATH_SEPARATOR, '\0' }; 1713 int size, i; 1714 1715 { 1716 const char *s = getenv("CLASSPATH"); 1717 if (s) { 1718 s = (char *) JLI_WildcardExpandClasspath(s); 1719 /* 40 for -Denv.class.path= */ 1720 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1721 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1722 sprintf(envcp, "-Denv.class.path=%s", s); 1723 AddOption(envcp, NULL); 1724 } 1725 } 1726 } 1727 1728 if (!GetApplicationHome(home, sizeof(home))) { 1729 JLI_ReportErrorMessage(CFG_ERROR5); 1730 return JNI_FALSE; 1731 } 1732 1733 /* 40 for '-Dapplication.home=' */ 1734 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1735 sprintf(apphome, "-Dapplication.home=%s", home); 1736 AddOption(apphome, NULL); 1737 1738 /* How big is the application's classpath? */ 1739 if (cpathc > 0) { 1740 size = 40; /* 40: "-Djava.class.path=" */ 1741 for (i = 0; i < cpathc; i++) { 1742 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1743 } 1744 appcp = (char *)JLI_MemAlloc(size + 1); 1745 JLI_StrCpy(appcp, "-Djava.class.path="); 1746 for (i = 0; i < cpathc; i++) { 1747 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1748 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1749 JLI_StrCat(appcp, separator); /* ; */ 1750 } 1751 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1752 AddOption(appcp, NULL); 1753 } 1754 return JNI_TRUE; 1755 } 1756 1757 /* 1758 * inject the -Dsun.java.command pseudo property into the args structure 1759 * this pseudo property is used in the HotSpot VM to expose the 1760 * Java class name and arguments to the main method to the VM. The 1761 * HotSpot VM uses this pseudo property to store the Java class name 1762 * (or jar file name) and the arguments to the class's main method 1763 * to the instrumentation memory region. The sun.java.command pseudo 1764 * property is not exported by HotSpot to the Java layer. 1765 */ 1766 void 1767 SetJavaCommandLineProp(char *what, int argc, char **argv) 1768 { 1769 1770 int i = 0; 1771 size_t len = 0; 1772 char* javaCommand = NULL; 1773 char* dashDstr = "-Dsun.java.command="; 1774 1775 if (what == NULL) { 1776 /* unexpected, one of these should be set. just return without 1777 * setting the property 1778 */ 1779 return; 1780 } 1781 1782 /* determine the amount of memory to allocate assuming 1783 * the individual components will be space separated 1784 */ 1785 len = JLI_StrLen(what); 1786 for (i = 0; i < argc; i++) { 1787 len += JLI_StrLen(argv[i]) + 1; 1788 } 1789 1790 /* allocate the memory */ 1791 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1792 1793 /* build the -D string */ 1794 *javaCommand = '\0'; 1795 JLI_StrCat(javaCommand, dashDstr); 1796 JLI_StrCat(javaCommand, what); 1797 1798 for (i = 0; i < argc; i++) { 1799 /* the components of the string are space separated. In 1800 * the case of embedded white space, the relationship of 1801 * the white space separated components to their true 1802 * positional arguments will be ambiguous. This issue may 1803 * be addressed in a future release. 1804 */ 1805 JLI_StrCat(javaCommand, " "); 1806 JLI_StrCat(javaCommand, argv[i]); 1807 } 1808 1809 AddOption(javaCommand, NULL); 1810 } 1811 1812 /* 1813 * JVM would like to know if it's created by a standard Sun launcher, or by 1814 * user native application, the following property indicates the former. 1815 */ 1816 void 1817 SetJavaLauncherProp() { 1818 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1819 } 1820 1821 /* 1822 * Prints the version information from the java.version and other properties. 1823 */ 1824 static void 1825 PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1826 { 1827 jclass ver; 1828 jmethodID print; 1829 1830 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps")); 1831 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1832 ver, 1833 (extraLF == JNI_TRUE) ? "println" : "print", 1834 "(Z)V" 1835 ) 1836 ); 1837 1838 (*env)->CallStaticVoidMethod(env, ver, print, printTo); 1839 } 1840 1841 /* 1842 * Prints all the Java settings, see the java implementation for more details. 1843 */ 1844 static void 1845 ShowSettings(JNIEnv *env, char *optString) 1846 { 1847 jmethodID showSettingsID; 1848 jstring joptString; 1849 jclass cls = GetLauncherHelperClass(env); 1850 NULL_CHECK(cls); 1851 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1852 "showSettings", "(ZLjava/lang/String;JJJ)V")); 1853 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1854 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1855 USE_STDERR, 1856 joptString, 1857 (jlong)initialHeapSize, 1858 (jlong)maxHeapSize, 1859 (jlong)threadStackSize); 1860 } 1861 1862 /** 1863 * Show resolved modules 1864 */ 1865 static void 1866 ShowResolvedModules(JNIEnv *env) 1867 { 1868 jmethodID showResolvedModulesID; 1869 jclass cls = GetLauncherHelperClass(env); 1870 NULL_CHECK(cls); 1871 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls, 1872 "showResolvedModules", "()V")); 1873 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID); 1874 } 1875 1876 /** 1877 * List observable modules 1878 */ 1879 static void 1880 ListModules(JNIEnv *env) 1881 { 1882 jmethodID listModulesID; 1883 jclass cls = GetLauncherHelperClass(env); 1884 NULL_CHECK(cls); 1885 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls, 1886 "listModules", "()V")); 1887 (*env)->CallStaticVoidMethod(env, cls, listModulesID); 1888 } 1889 1890 /** 1891 * Describe a module 1892 */ 1893 static void 1894 DescribeModule(JNIEnv *env, char *optString) 1895 { 1896 jmethodID describeModuleID; 1897 jstring joptString = NULL; 1898 jclass cls = GetLauncherHelperClass(env); 1899 NULL_CHECK(cls); 1900 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls, 1901 "describeModule", "(Ljava/lang/String;)V")); 1902 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1903 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString); 1904 } 1905 1906 /** 1907 * Validate modules 1908 */ 1909 static jboolean 1910 ValidateModules(JNIEnv *env) 1911 { 1912 jmethodID validateModulesID; 1913 jclass cls = GetLauncherHelperClass(env); 1914 NULL_CHECK_RETURN_VALUE(cls, JNI_FALSE); 1915 validateModulesID = (*env)->GetStaticMethodID(env, cls, "validateModules", "()Z"); 1916 NULL_CHECK_RETURN_VALUE(cls, JNI_FALSE); 1917 return (*env)->CallStaticBooleanMethod(env, cls, validateModulesID); 1918 } 1919 1920 /* 1921 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1922 */ 1923 static void 1924 PrintUsage(JNIEnv* env, jboolean doXUsage) 1925 { 1926 jmethodID initHelp, vmSelect, vmSynonym, printHelp, printXUsageMessage; 1927 jstring jprogname, vm1, vm2; 1928 int i; 1929 jclass cls = GetLauncherHelperClass(env); 1930 NULL_CHECK(cls); 1931 if (doXUsage) { 1932 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1933 "printXUsageMessage", "(Z)V")); 1934 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo); 1935 } else { 1936 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1937 "initHelpMessage", "(Ljava/lang/String;)V")); 1938 1939 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1940 "(Ljava/lang/String;Ljava/lang/String;)V")); 1941 1942 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1943 "appendVmSynonymMessage", 1944 "(Ljava/lang/String;Ljava/lang/String;)V")); 1945 1946 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1947 "printHelpMessage", "(Z)V")); 1948 1949 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1950 1951 /* Initialize the usage message with the usual preamble */ 1952 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1953 CHECK_EXCEPTION_RETURN(); 1954 1955 1956 /* Assemble the other variant part of the usage */ 1957 for (i=1; i<knownVMsCount; i++) { 1958 if (knownVMs[i].flag == VM_KNOWN) { 1959 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1960 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 1961 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1962 CHECK_EXCEPTION_RETURN(); 1963 } 1964 } 1965 for (i=1; i<knownVMsCount; i++) { 1966 if (knownVMs[i].flag == VM_ALIASED_TO) { 1967 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1968 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 1969 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1970 CHECK_EXCEPTION_RETURN(); 1971 } 1972 } 1973 1974 /* Complete the usage message and print to stderr*/ 1975 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo); 1976 } 1977 return; 1978 } 1979 1980 /* 1981 * Read the jvm.cfg file and fill the knownJVMs[] array. 1982 * 1983 * The functionality of the jvm.cfg file is subject to change without 1984 * notice and the mechanism will be removed in the future. 1985 * 1986 * The lexical structure of the jvm.cfg file is as follows: 1987 * 1988 * jvmcfg := { vmLine } 1989 * vmLine := knownLine 1990 * | aliasLine 1991 * | warnLine 1992 * | ignoreLine 1993 * | errorLine 1994 * | predicateLine 1995 * | commentLine 1996 * knownLine := flag "KNOWN" EOL 1997 * warnLine := flag "WARN" EOL 1998 * ignoreLine := flag "IGNORE" EOL 1999 * errorLine := flag "ERROR" EOL 2000 * aliasLine := flag "ALIASED_TO" flag EOL 2001 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 2002 * commentLine := "#" text EOL 2003 * flag := "-" identifier 2004 * 2005 * The semantics are that when someone specifies a flag on the command line: 2006 * - if the flag appears on a knownLine, then the identifier is used as 2007 * the name of the directory holding the JVM library (the name of the JVM). 2008 * - if the flag appears as the first flag on an aliasLine, the identifier 2009 * of the second flag is used as the name of the JVM. 2010 * - if the flag appears on a warnLine, the identifier is used as the 2011 * name of the JVM, but a warning is generated. 2012 * - if the flag appears on an ignoreLine, the identifier is recognized as the 2013 * name of a JVM, but the identifier is ignored and the default vm used 2014 * - if the flag appears on an errorLine, an error is generated. 2015 * - if the flag appears as the first flag on a predicateLine, and 2016 * the machine on which you are running passes the predicate indicated, 2017 * then the identifier of the second flag is used as the name of the JVM, 2018 * otherwise the identifier of the first flag is used as the name of the JVM. 2019 * If no flag is given on the command line, the first vmLine of the jvm.cfg 2020 * file determines the name of the JVM. 2021 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 2022 * since they only make sense if someone hasn't specified the name of the 2023 * JVM on the command line. 2024 * 2025 * The intent of the jvm.cfg file is to allow several JVM libraries to 2026 * be installed in different subdirectories of a single JRE installation, 2027 * for space-savings and convenience in testing. 2028 * The intent is explicitly not to provide a full aliasing or predicate 2029 * mechanism. 2030 */ 2031 jint 2032 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 2033 { 2034 FILE *jvmCfg; 2035 char line[MAXPATHLEN+20]; 2036 int cnt = 0; 2037 int lineno = 0; 2038 jlong start, end; 2039 int vmType; 2040 char *tmpPtr; 2041 char *altVMName = NULL; 2042 char *serverClassVMName = NULL; 2043 static char *whiteSpace = " \t"; 2044 if (JLI_IsTraceLauncher()) { 2045 start = CounterGet(); 2046 } 2047 2048 jvmCfg = fopen(jvmCfgName, "r"); 2049 if (jvmCfg == NULL) { 2050 if (!speculative) { 2051 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 2052 exit(1); 2053 } else { 2054 return -1; 2055 } 2056 } 2057 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 2058 vmType = VM_UNKNOWN; 2059 lineno++; 2060 if (line[0] == '#') 2061 continue; 2062 if (line[0] != '-') { 2063 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 2064 } 2065 if (cnt >= knownVMsLimit) { 2066 GrowKnownVMs(cnt); 2067 } 2068 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 2069 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 2070 if (*tmpPtr == 0) { 2071 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2072 } else { 2073 /* Null-terminate this string for JLI_StringDup below */ 2074 *tmpPtr++ = 0; 2075 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2076 if (*tmpPtr == 0) { 2077 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2078 } else { 2079 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 2080 vmType = VM_KNOWN; 2081 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 2082 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2083 if (*tmpPtr != 0) { 2084 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2085 } 2086 if (*tmpPtr == 0) { 2087 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2088 } else { 2089 /* Null terminate altVMName */ 2090 altVMName = tmpPtr; 2091 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2092 *tmpPtr = 0; 2093 vmType = VM_ALIASED_TO; 2094 } 2095 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 2096 vmType = VM_WARN; 2097 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 2098 vmType = VM_IGNORE; 2099 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 2100 vmType = VM_ERROR; 2101 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 2102 /* ignored */ 2103 } else { 2104 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 2105 vmType = VM_KNOWN; 2106 } 2107 } 2108 } 2109 2110 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 2111 if (vmType != VM_UNKNOWN) { 2112 knownVMs[cnt].name = JLI_StringDup(line); 2113 knownVMs[cnt].flag = vmType; 2114 switch (vmType) { 2115 default: 2116 break; 2117 case VM_ALIASED_TO: 2118 knownVMs[cnt].alias = JLI_StringDup(altVMName); 2119 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 2120 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 2121 break; 2122 } 2123 cnt++; 2124 } 2125 } 2126 fclose(jvmCfg); 2127 knownVMsCount = cnt; 2128 2129 if (JLI_IsTraceLauncher()) { 2130 end = CounterGet(); 2131 printf("%ld micro seconds to parse jvm.cfg\n", 2132 (long)(jint)Counter2Micros(end-start)); 2133 } 2134 2135 return cnt; 2136 } 2137 2138 2139 static void 2140 GrowKnownVMs(int minimum) 2141 { 2142 struct vmdesc* newKnownVMs; 2143 int newMax; 2144 2145 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 2146 if (newMax <= minimum) { 2147 newMax = minimum; 2148 } 2149 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 2150 if (knownVMs != NULL) { 2151 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 2152 } 2153 JLI_MemFree(knownVMs); 2154 knownVMs = newKnownVMs; 2155 knownVMsLimit = newMax; 2156 } 2157 2158 2159 /* Returns index of VM or -1 if not found */ 2160 static int 2161 KnownVMIndex(const char* name) 2162 { 2163 int i; 2164 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 2165 for (i = 0; i < knownVMsCount; i++) { 2166 if (!JLI_StrCmp(name, knownVMs[i].name)) { 2167 return i; 2168 } 2169 } 2170 return -1; 2171 } 2172 2173 static void 2174 FreeKnownVMs() 2175 { 2176 int i; 2177 for (i = 0; i < knownVMsCount; i++) { 2178 JLI_MemFree(knownVMs[i].name); 2179 knownVMs[i].name = NULL; 2180 } 2181 JLI_MemFree(knownVMs); 2182 } 2183 2184 /* 2185 * Displays the splash screen according to the jar file name 2186 * and image file names stored in environment variables 2187 */ 2188 void 2189 ShowSplashScreen() 2190 { 2191 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 2192 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 2193 int data_size; 2194 void *image_data = NULL; 2195 float scale_factor = 1; 2196 char *scaled_splash_name = NULL; 2197 jboolean isImageScaled = JNI_FALSE; 2198 size_t maxScaledImgNameLength = 0; 2199 if (file_name == NULL){ 2200 return; 2201 } 2202 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name); 2203 2204 scaled_splash_name = JLI_MemAlloc( 2205 maxScaledImgNameLength * sizeof(char)); 2206 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name, 2207 &scale_factor, 2208 scaled_splash_name, maxScaledImgNameLength); 2209 if (jar_name) { 2210 2211 if (isImageScaled) { 2212 image_data = JLI_JarUnpackFile( 2213 jar_name, scaled_splash_name, &data_size); 2214 } 2215 2216 if (!image_data) { 2217 scale_factor = 1; 2218 image_data = JLI_JarUnpackFile( 2219 jar_name, file_name, &data_size); 2220 } 2221 if (image_data) { 2222 DoSplashInit(); 2223 DoSplashSetScaleFactor(scale_factor); 2224 DoSplashLoadMemory(image_data, data_size); 2225 JLI_MemFree(image_data); 2226 } 2227 } else { 2228 DoSplashInit(); 2229 if (isImageScaled) { 2230 DoSplashSetScaleFactor(scale_factor); 2231 DoSplashLoadFile(scaled_splash_name); 2232 } else { 2233 DoSplashLoadFile(file_name); 2234 } 2235 } 2236 JLI_MemFree(scaled_splash_name); 2237 2238 DoSplashSetFileJarName(file_name, jar_name); 2239 2240 /* 2241 * Done with all command line processing and potential re-execs so 2242 * clean up the environment. 2243 */ 2244 (void)UnsetEnv(ENV_ENTRY); 2245 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 2246 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 2247 2248 JLI_MemFree(splash_jar_entry); 2249 JLI_MemFree(splash_file_entry); 2250 2251 } 2252 2253 const char* 2254 GetFullVersion() 2255 { 2256 return _fVersion; 2257 } 2258 2259 const char* 2260 GetProgramName() 2261 { 2262 return _program_name; 2263 } 2264 2265 const char* 2266 GetLauncherName() 2267 { 2268 return _launcher_name; 2269 } 2270 2271 jboolean 2272 IsJavaArgs() 2273 { 2274 return _is_java_args; 2275 } 2276 2277 static jboolean 2278 IsWildCardEnabled() 2279 { 2280 return _wc_enabled; 2281 } 2282 2283 int 2284 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 2285 int argc, char **argv, 2286 int mode, char *what, int ret) 2287 { 2288 2289 /* 2290 * If user doesn't specify stack size, check if VM has a preference. 2291 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 2292 * return its default stack size through the init args structure. 2293 */ 2294 if (threadStackSize == 0) { 2295 struct JDK1_1InitArgs args1_1; 2296 memset((void*)&args1_1, 0, sizeof(args1_1)); 2297 args1_1.version = JNI_VERSION_1_1; 2298 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 2299 if (args1_1.javaStackSize > 0) { 2300 threadStackSize = args1_1.javaStackSize; 2301 } 2302 } 2303 2304 { /* Create a new thread to create JVM and invoke main method */ 2305 JavaMainArgs args; 2306 int rslt; 2307 2308 args.argc = argc; 2309 args.argv = argv; 2310 args.mode = mode; 2311 args.what = what; 2312 args.ifn = *ifn; 2313 2314 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args); 2315 /* If the caller has deemed there is an error we 2316 * simply return that, otherwise we return the value of 2317 * the callee 2318 */ 2319 return (ret != 0) ? ret : rslt; 2320 } 2321 } 2322 2323 static void 2324 DumpState() 2325 { 2326 if (!JLI_IsTraceLauncher()) return ; 2327 printf("Launcher state:\n"); 2328 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex()); 2329 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 2330 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 2331 printf("\tprogram name:%s\n", GetProgramName()); 2332 printf("\tlauncher name:%s\n", GetLauncherName()); 2333 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 2334 printf("\tfullversion:%s\n", GetFullVersion()); 2335 } 2336 2337 /* 2338 * A utility procedure to always print to stderr 2339 */ 2340 void 2341 JLI_ReportMessage(const char* fmt, ...) 2342 { 2343 va_list vl; 2344 va_start(vl, fmt); 2345 vfprintf(stderr, fmt, vl); 2346 fprintf(stderr, "\n"); 2347 va_end(vl); 2348 } 2349 2350 /* 2351 * A utility procedure to always print to stdout 2352 */ 2353 void 2354 JLI_ShowMessage(const char* fmt, ...) 2355 { 2356 va_list vl; 2357 va_start(vl, fmt); 2358 vfprintf(stdout, fmt, vl); 2359 fprintf(stdout, "\n"); 2360 va_end(vl); 2361 }