1 /* 2 * Copyright (c) 1995, 2025, 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). 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. 46 */ 47 48 49 #include <assert.h> 50 51 #include "java.h" 52 #include "jni.h" 53 #include "stdbool.h" 54 55 /* 56 * A NOTE TO DEVELOPERS: For performance reasons it is important that 57 * the program image remain relatively small until after 58 * CreateExecutionEnvironment has finished its possibly recursive 59 * processing. Watch everything, but resist all temptations to use Java 60 * interfaces. 61 */ 62 63 #define USE_STDERR JNI_TRUE /* we usually print to stderr */ 64 #define USE_STDOUT JNI_FALSE 65 66 enum HelpKind { 67 HELP_NONE, 68 HELP_CONCISE, 69 HELP_FULL, 70 HELP_EXTRA 71 }; 72 73 static jboolean printVersion = JNI_FALSE; /* print and exit */ 74 static jboolean showVersion = JNI_FALSE; /* print but continue */ 75 static enum HelpKind printUsageKind = HELP_NONE; /* if not NONE, print specified usage and exit*/ 76 static jboolean printTo = USE_STDERR; /* where to print version/usage */ 77 static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */ 78 static char *showSettings = NULL; /* print but continue */ 79 static jboolean showResolvedModules = JNI_FALSE; 80 static jboolean listModules = JNI_FALSE; 81 static char *describeModule = NULL; 82 static jboolean validateModules = JNI_FALSE; 83 84 static const char *_program_name; 85 static const char *_launcher_name; 86 static jboolean _is_java_args = JNI_FALSE; 87 static jboolean _have_classpath = JNI_FALSE; 88 static const char *_fVersion; 89 static jboolean _wc_enabled = JNI_FALSE; 90 static jboolean dumpSharedSpaces = JNI_FALSE; /* -Xshare:dump */ 91 92 /* 93 * Values that will be stored into splash screen environment variables. 94 * putenv is performed to set _JAVA_SPLASH_FILE and _JAVA_SPLASH_JAR 95 * with these values. We need them in memory until UnsetEnv in 96 * ShowSplashScreen, so they are made static global instead of auto local. 97 */ 98 static char* splash_file_entry = NULL; 99 static char* splash_jar_entry = NULL; 100 101 /* 102 * List of VM options to be specified when the VM is created. 103 */ 104 static JavaVMOption *options; 105 static int numOptions, maxOptions; 106 107 /* 108 * Prototypes for functions internal to launcher. 109 */ 110 static const char* GetFullVersion(); 111 static jboolean IsJavaArgs(); 112 static void SetJavaLauncherProp(); 113 static void SetClassPath(const char *s); 114 static void SetMainModule(const char *s); 115 static jboolean ParseArguments(int *pargc, char ***pargv, 116 int *pmode, char **pwhat, 117 int *pret); 118 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 119 InvocationFunctions *ifn); 120 static jstring NewPlatformString(JNIEnv *env, char *s); 121 static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 122 static void SetupSplashScreenEnvVars(const char *splash_file_path, char *jar_path); 123 static jclass GetApplicationClass(JNIEnv *env); 124 125 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 126 static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 127 128 static void PrintJavaVersion(JNIEnv *env); 129 static void PrintUsage(JNIEnv* env, enum HelpKind printUsageKind); 130 static void ShowSettings(JNIEnv* env, char *optString); 131 static void ShowResolvedModules(JNIEnv* env); 132 static void ListModules(JNIEnv* env); 133 static void DescribeModule(JNIEnv* env, char* optString); 134 135 static void DumpState(); 136 137 enum OptionKind { 138 LAUNCHER_OPTION = 0, 139 LAUNCHER_OPTION_WITH_ARGUMENT, 140 LAUNCHER_MAIN_OPTION, 141 VM_LONG_OPTION, 142 VM_LONG_OPTION_WITH_ARGUMENT, 143 VM_OPTION 144 }; 145 146 static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue); 147 static jboolean IsOptionWithArgument(int argc, char **argv); 148 149 /* Maximum supported entries from jvm.cfg. */ 150 #define INIT_MAX_KNOWN_VMS 10 151 152 /* Values for vmdesc.flag */ 153 enum vmdesc_flag { 154 VM_UNKNOWN = -1, 155 VM_KNOWN, 156 VM_ALIASED_TO, 157 VM_WARN, 158 VM_ERROR, 159 VM_IF_SERVER_CLASS, 160 VM_IGNORE 161 }; 162 163 struct vmdesc { 164 char *name; 165 int flag; 166 char *alias; 167 char *server_class; 168 }; 169 static struct vmdesc *knownVMs = NULL; 170 static int knownVMsCount = 0; 171 static int knownVMsLimit = 0; 172 173 static void GrowKnownVMs(int minimum); 174 static int KnownVMIndex(const char* name); 175 static void FreeKnownVMs(); 176 static jboolean IsWildCardEnabled(); 177 178 179 #define SOURCE_LAUNCHER_MAIN_ENTRY "jdk.compiler/com.sun.tools.javac.launcher.SourceLauncher" 180 181 /* 182 * This reports error. VM will not be created and no usage is printed. 183 */ 184 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \ 185 do { \ 186 if (!AC_ok) { \ 187 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 188 printUsageKind = HELP_NONE; \ 189 *pret = 1; \ 190 return JNI_FALSE; \ 191 } \ 192 } while (JNI_FALSE) 193 194 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \ 195 do { \ 196 if (AC_arg_count < 1) { \ 197 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 198 printUsageKind = HELP_FULL; \ 199 *pret = 1; \ 200 return JNI_TRUE; \ 201 } \ 202 } while (JNI_FALSE) 203 204 /* 205 * Running Java code in primordial thread caused many problems. We will 206 * create a new thread to invoke JVM. See 6316197 for more information. 207 */ 208 static jlong threadStackSize = 0; /* stack size of the new thread */ 209 static jlong maxHeapSize = 0; /* max heap size */ 210 static jlong initialHeapSize = 0; /* initial heap size */ 211 212 /* 213 * A minimum initial-thread stack size suitable for most platforms. 214 * This is the minimum amount of stack needed to load the JVM such 215 * that it can reject a too small -Xss value. If this is too small 216 * JVM initialization would cause a StackOverflowError. 217 */ 218 #ifndef STACK_SIZE_MINIMUM 219 #define STACK_SIZE_MINIMUM (64 * KB) 220 #endif 221 222 /* 223 * Entry point. 224 */ 225 JNIEXPORT int JNICALL 226 JLI_Launch(int argc, char ** argv, /* main argc, argv */ 227 int jargc, const char** jargv, /* java args */ 228 int appclassc, const char** appclassv, /* app classpath */ 229 const char* fullversion, /* full version defined */ 230 const char* dotversion, /* UNUSED dot version defined */ 231 const char* pname, /* program name */ 232 const char* lname, /* launcher name */ 233 jboolean javaargs, /* JAVA_ARGS */ 234 jboolean cpwildcard, /* classpath wildcard*/ 235 jboolean javaw, /* windows-only javaw */ 236 jint ergo /* unused */ 237 ) 238 { 239 int mode = LM_UNKNOWN; 240 char *what = NULL; 241 int ret; 242 InvocationFunctions ifn; 243 jlong start = 0, end = 0; 244 char jvmpath[MAXPATHLEN]; 245 char jdkroot[MAXPATHLEN]; 246 char jvmcfg[MAXPATHLEN]; 247 248 _fVersion = fullversion; 249 _launcher_name = lname; 250 _program_name = pname; 251 _is_java_args = javaargs; 252 _wc_enabled = cpwildcard; 253 254 InitLauncher(javaw); 255 DumpState(); 256 if (JLI_IsTraceLauncher()) { 257 char *env_in; 258 if ((env_in = getenv(MAIN_CLASS_ENV_ENTRY)) != NULL) { 259 printf("Launched through Multiple JRE (mJRE) support\n"); 260 } 261 int i; 262 printf("Java args:\n"); 263 for (i = 0; i < jargc ; i++) { 264 printf("jargv[%d] = %s\n", i, jargv[i]); 265 } 266 printf("Command line args:\n"); 267 for (i = 0; i < argc ; i++) { 268 printf("argv[%d] = %s\n", i, argv[i]); 269 } 270 AddOption("-Dsun.java.launcher.diag=true", NULL); 271 } 272 273 CreateExecutionEnvironment(&argc, &argv, 274 jdkroot, sizeof(jdkroot), 275 jvmpath, sizeof(jvmpath), 276 jvmcfg, sizeof(jvmcfg)); 277 278 ifn.CreateJavaVM = 0; 279 ifn.GetDefaultJavaVMInitArgs = 0; 280 281 if (JLI_IsTraceLauncher()) { 282 start = CurrentTimeMicros(); 283 } 284 285 if (!LoadJavaVM(jvmpath, &ifn)) { 286 return(6); 287 } 288 289 if (JLI_IsTraceLauncher()) { 290 end = CurrentTimeMicros(); 291 } 292 293 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", (long)(end-start)); 294 295 ++argv; 296 --argc; 297 298 if (IsJavaArgs()) { 299 /* Preprocess wrapper arguments */ 300 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 301 if (!AddApplicationOptions(appclassc, appclassv)) { 302 return(1); 303 } 304 } else { 305 /* Set default CLASSPATH */ 306 char* cpath = getenv("CLASSPATH"); 307 if (cpath != NULL) { 308 SetClassPath(cpath); 309 } 310 } 311 312 /* Parse command line options; if the return value of 313 * ParseArguments is false, the program should exit. 314 */ 315 if (!ParseArguments(&argc, &argv, &mode, &what, &ret)) { 316 return(ret); 317 } 318 319 /* Override class path if -jar flag was specified */ 320 if (mode == LM_JAR) { 321 SetClassPath(what); /* Override class path */ 322 } 323 324 /* set the -Dsun.java.command pseudo property */ 325 SetJavaCommandLineProp(what, argc, argv); 326 327 /* Set the -Dsun.java.launcher pseudo property */ 328 SetJavaLauncherProp(); 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)->ExceptionCheck(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)->ExceptionCheck(env)) { \ 373 JLI_ReportExceptionDescription(env); \ 374 ret = (CEL_return_value); \ 375 LEAVE(); \ 376 } \ 377 } while (JNI_FALSE) 378 379 /* 380 * Invokes static main(String[]) method if found. 381 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe 382 * a pending exception if the method threw. 383 */ 384 int 385 invokeStaticMainWithArgs(JNIEnv *env, jclass mainClass, jobjectArray mainArgs) { 386 jmethodID mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 387 "([Ljava/lang/String;)V"); 388 if (mainID == NULL) { 389 // static main(String[]) not found 390 return 0; 391 } 392 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 393 return 1; // method was invoked 394 } 395 396 /* 397 * Invokes instance main(String[]) method if found. 398 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe 399 * a pending exception if the method threw. 400 */ 401 int 402 invokeInstanceMainWithArgs(JNIEnv *env, jclass mainClass, jobjectArray mainArgs) { 403 jmethodID constructor = (*env)->GetMethodID(env, mainClass, "<init>", "()V"); 404 if (constructor == NULL) { 405 // main class' no-arg constructor not found 406 return 0; 407 } 408 jobject mainObject = (*env)->NewObject(env, mainClass, constructor); 409 if (mainObject == NULL) { 410 // main class instance couldn't be constructed 411 return 0; 412 } 413 jmethodID mainID = 414 (*env)->GetMethodID(env, mainClass, "main", "([Ljava/lang/String;)V"); 415 if (mainID == NULL) { 416 // instance method main(String[]) method not found 417 return 0; 418 } 419 (*env)->CallVoidMethod(env, mainObject, mainID, mainArgs); 420 return 1; // method was invoked 421 } 422 423 /* 424 * Invokes no-arg static main() method if found. 425 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe 426 * a pending exception if the method threw. 427 */ 428 int 429 invokeStaticMainWithoutArgs(JNIEnv *env, jclass mainClass) { 430 jmethodID mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 431 "()V"); 432 if (mainID == NULL) { 433 // static main() method couldn't be located 434 return 0; 435 } 436 (*env)->CallStaticVoidMethod(env, mainClass, mainID); 437 return 1; // method was invoked 438 } 439 440 /* 441 * Invokes no-arg instance main() method if found. 442 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe 443 * a pending exception if the method threw. 444 */ 445 int 446 invokeInstanceMainWithoutArgs(JNIEnv *env, jclass mainClass) { 447 jmethodID constructor = (*env)->GetMethodID(env, mainClass, "<init>", "()V"); 448 if (constructor == NULL) { 449 // main class' no-arg constructor not found 450 return 0; 451 } 452 jobject mainObject = (*env)->NewObject(env, mainClass, constructor); 453 if (mainObject == NULL) { 454 // couldn't create instance of main class 455 return 0; 456 } 457 jmethodID mainID = (*env)->GetMethodID(env, mainClass, "main", 458 "()V"); 459 if (mainID == NULL) { 460 // instance method main() not found 461 return 0; 462 } 463 (*env)->CallVoidMethod(env, mainObject, mainID); 464 return 1; // method was invoked 465 } 466 467 int 468 JavaMain(void* _args) 469 { 470 JavaMainArgs *args = (JavaMainArgs *)_args; 471 int argc = args->argc; 472 char **argv = args->argv; 473 int mode = args->mode; 474 char *what = args->what; 475 InvocationFunctions ifn = args->ifn; 476 477 JavaVM *vm = 0; 478 JNIEnv *env = 0; 479 jclass mainClass = NULL; 480 jclass appClass = NULL; // actual application class being launched 481 jobjectArray mainArgs; 482 int ret = 0; 483 jlong start = 0, end = 0; 484 jclass helperClass; 485 jfieldID isStaticMainField; 486 jboolean isStaticMain; 487 jfieldID noArgMainField; 488 jboolean noArgMain; 489 490 RegisterThread(); 491 492 /* Initialize the virtual machine */ 493 start = CurrentTimeMicros(); 494 if (!InitializeJVM(&vm, &env, &ifn)) { 495 JLI_ReportErrorMessage(JVM_ERROR1); 496 exit(1); 497 } 498 499 if (showSettings != NULL) { 500 ShowSettings(env, showSettings); 501 CHECK_EXCEPTION_LEAVE(1); 502 } 503 504 // show resolved modules and continue 505 if (showResolvedModules) { 506 ShowResolvedModules(env); 507 CHECK_EXCEPTION_LEAVE(1); 508 } 509 510 // list observable modules, then exit 511 if (listModules) { 512 ListModules(env); 513 CHECK_EXCEPTION_LEAVE(1); 514 LEAVE(); 515 } 516 517 // describe a module, then exit 518 if (describeModule != NULL) { 519 DescribeModule(env, describeModule); 520 CHECK_EXCEPTION_LEAVE(1); 521 LEAVE(); 522 } 523 524 if (printVersion || showVersion) { 525 PrintJavaVersion(env); 526 CHECK_EXCEPTION_LEAVE(0); 527 if (printVersion) { 528 LEAVE(); 529 } 530 } 531 532 // modules have been validated at startup so exit 533 if (validateModules) { 534 LEAVE(); 535 } 536 537 /* 538 * -Xshare:dump does not have a main class so the VM can safely exit now 539 */ 540 if (dumpSharedSpaces) { 541 CHECK_EXCEPTION_LEAVE(1); 542 LEAVE(); 543 } 544 545 /* If the user specified neither a class name nor a JAR file */ 546 if (printUsageKind != HELP_NONE) { 547 PrintUsage(env, printUsageKind); 548 CHECK_EXCEPTION_LEAVE(1); 549 LEAVE(); 550 } 551 552 FreeKnownVMs(); /* after last possible PrintUsage */ 553 554 if (JLI_IsTraceLauncher()) { 555 end = CurrentTimeMicros(); 556 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", (long)(end-start)); 557 } 558 559 /* At this stage, argc/argv have the application's arguments */ 560 if (JLI_IsTraceLauncher()){ 561 int i; 562 printf("%s is '%s'\n", launchModeNames[mode], what); 563 printf("App's argc is %d\n", argc); 564 for (i=0; i < argc; i++) { 565 printf(" argv[%2d] = '%s'\n", i, argv[i]); 566 } 567 } 568 569 ret = 1; 570 571 /* 572 * See bugid 5030265. The Main-Class name has already been parsed 573 * from the manifest, but not parsed properly for UTF-8 support. 574 * Hence the code here ignores the value previously extracted and 575 * uses the pre-existing code to reextract the value. This is 576 * possibly an end of release cycle expedient. However, it has 577 * also been discovered that passing some character sets through 578 * the environment has "strange" behavior on some variants of 579 * Windows. Hence, maybe the manifest parsing code local to the 580 * launcher should never be enhanced. 581 * 582 * Hence, future work should either: 583 * 1) Correct the local parsing code and verify that the 584 * Main-Class attribute gets properly passed through 585 * all environments, 586 * 2) Remove the vestages of maintaining main_class through 587 * the environment (and remove these comments). 588 * 589 * This method also correctly handles launching existing JavaFX 590 * applications that may or may not have a Main-Class manifest entry. 591 */ 592 mainClass = LoadMainClass(env, mode, what); 593 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 594 /* 595 * In some cases when launching an application that needs a helper, e.g., a 596 * JavaFX application with no main method, the mainClass will not be the 597 * applications own main class but rather a helper class. To keep things 598 * consistent in the UI we need to track and report the application main class. 599 */ 600 appClass = GetApplicationClass(env); 601 CHECK_EXCEPTION_NULL_LEAVE(appClass); 602 603 /* Build platform specific argument array */ 604 mainArgs = CreateApplicationArgs(env, argv, argc); 605 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 606 607 if (dryRun) { 608 ret = 0; 609 LEAVE(); 610 } 611 612 /* 613 * PostJVMInit uses the class name as the application name for GUI purposes, 614 * for example, on OSX this sets the application name in the menu bar for 615 * both SWT and JavaFX. So we'll pass the actual application class here 616 * instead of mainClass as that may be a launcher or helper class instead 617 * of the application class. 618 */ 619 PostJVMInit(env, appClass, vm); 620 CHECK_EXCEPTION_LEAVE(1); 621 622 /* 623 * The main method is invoked here so that extraneous java stacks are not in 624 * the application stack trace. 625 */ 626 627 helperClass = GetLauncherHelperClass(env); 628 isStaticMainField = (*env)->GetStaticFieldID(env, helperClass, "isStaticMain", "Z"); 629 CHECK_EXCEPTION_NULL_LEAVE(isStaticMainField); 630 isStaticMain = (*env)->GetStaticBooleanField(env, helperClass, isStaticMainField); 631 632 noArgMainField = (*env)->GetStaticFieldID(env, helperClass, "noArgMain", "Z"); 633 CHECK_EXCEPTION_NULL_LEAVE(noArgMainField); 634 noArgMain = (*env)->GetStaticBooleanField(env, helperClass, noArgMainField); 635 636 if (isStaticMain) { 637 if (noArgMain) { 638 ret = invokeStaticMainWithoutArgs(env, mainClass); 639 } else { 640 ret = invokeStaticMainWithArgs(env, mainClass, mainArgs); 641 } 642 } else { 643 if (noArgMain) { 644 ret = invokeInstanceMainWithoutArgs(env, mainClass); 645 } else { 646 ret = invokeInstanceMainWithArgs(env, mainClass, mainArgs); 647 } 648 } 649 if (!ret) { 650 // An appropriate main method couldn't be located, check and report 651 // any exception and LEAVE() 652 CHECK_EXCEPTION_LEAVE(1); 653 } 654 655 /* 656 * The launcher's exit code (in the absence of calls to 657 * System.exit) will be non-zero if main threw an exception. 658 */ 659 if (ret && !(*env)->ExceptionCheck(env)) { 660 // main method was invoked and no exception was thrown from it, 661 // return success. 662 ret = 0; 663 } else { 664 // Either the main method couldn't be located or an exception occurred 665 // in the invoked main method, return failure. 666 ret = 1; 667 } 668 LEAVE(); 669 #if defined(__GNUC__) 670 #pragma GCC diagnostic push 671 #pragma GCC diagnostic ignored "-Wreturn-type" 672 #endif 673 } 674 #if defined(__GNUC__) 675 #pragma GCC diagnostic pop 676 #endif 677 678 /* 679 * Test if the given name is one of the class path options. 680 */ 681 static jboolean 682 IsClassPathOption(const char* name) { 683 return JLI_StrCmp(name, "-classpath") == 0 || 684 JLI_StrCmp(name, "-cp") == 0 || 685 JLI_StrCmp(name, "--class-path") == 0; 686 } 687 688 /* 689 * Test if the given name is a launcher option taking the main entry point. 690 */ 691 static jboolean 692 IsLauncherMainOption(const char* name) { 693 return JLI_StrCmp(name, "--module") == 0 || 694 JLI_StrCmp(name, "-m") == 0; 695 } 696 697 /* 698 * Test if the given name is a white-space launcher option. 699 */ 700 static jboolean 701 IsLauncherOption(const char* name) { 702 return IsClassPathOption(name) || 703 IsLauncherMainOption(name) || 704 JLI_StrCmp(name, "--describe-module") == 0 || 705 JLI_StrCmp(name, "-d") == 0 || 706 JLI_StrCmp(name, "--source") == 0; 707 } 708 709 /* 710 * Test if the given name is a module-system white-space option that 711 * will be passed to the VM with its corresponding long-form option 712 * name and "=" delimiter. 713 */ 714 static jboolean 715 IsModuleOption(const char* name) { 716 return JLI_StrCmp(name, "--module-path") == 0 || 717 JLI_StrCmp(name, "-p") == 0 || 718 JLI_StrCmp(name, "--upgrade-module-path") == 0 || 719 JLI_StrCmp(name, "--add-modules") == 0 || 720 JLI_StrCmp(name, "--enable-native-access") == 0 || 721 JLI_StrCmp(name, "--limit-modules") == 0 || 722 JLI_StrCmp(name, "--add-exports") == 0 || 723 JLI_StrCmp(name, "--add-opens") == 0 || 724 JLI_StrCmp(name, "--add-reads") == 0 || 725 JLI_StrCmp(name, "--patch-module") == 0; 726 } 727 728 static jboolean 729 IsLongFormModuleOption(const char* name) { 730 return JLI_StrCCmp(name, "--module-path=") == 0 || 731 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 || 732 JLI_StrCCmp(name, "--add-modules=") == 0 || 733 JLI_StrCCmp(name, "--enable-native-access=") == 0 || 734 JLI_StrCCmp(name, "--limit-modules=") == 0 || 735 JLI_StrCCmp(name, "--add-exports=") == 0 || 736 JLI_StrCCmp(name, "--add-reads=") == 0 || 737 JLI_StrCCmp(name, "--patch-module=") == 0; 738 } 739 740 /* 741 * Test if the given name has a white space option. 742 */ 743 jboolean 744 IsWhiteSpaceOption(const char* name) { 745 return IsModuleOption(name) || 746 IsLauncherOption(name); 747 } 748 749 /* 750 * Check if it is OK to set the mode. 751 * If the mode was previously set, and should not be changed, 752 * a fatal error is reported. 753 */ 754 static int 755 checkMode(int mode, int newMode, const char *arg) { 756 if (mode == LM_SOURCE) { 757 JLI_ReportErrorMessage(ARG_ERROR14, arg); 758 exit(1); 759 } 760 return newMode; 761 } 762 763 /* 764 * Test if an arg identifies a source file. 765 */ 766 static jboolean IsSourceFile(const char *arg) { 767 struct stat st; 768 return (JLI_HasSuffix(arg, ".java") && stat(arg, &st) == 0); 769 } 770 771 /* 772 * Checks the command line options to find which JVM type was 773 * specified. If no command line option was given for the JVM type, 774 * the default type is used. The environment variable 775 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 776 * checked as ways of specifying which JVM type to invoke. 777 */ 778 char * 779 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 780 int i, argi; 781 int argc; 782 char **newArgv; 783 int newArgvIdx = 0; 784 int isVMType; 785 int jvmidx = -1; 786 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 787 788 argc = *pargc; 789 790 /* To make things simpler we always copy the argv array */ 791 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 792 793 /* The program name is always present */ 794 newArgv[newArgvIdx++] = (*argv)[0]; 795 796 for (argi = 1; argi < argc; argi++) { 797 char *arg = (*argv)[argi]; 798 isVMType = 0; 799 800 if (IsJavaArgs()) { 801 if (arg[0] != '-') { 802 newArgv[newArgvIdx++] = arg; 803 continue; 804 } 805 } else { 806 if (IsWhiteSpaceOption(arg)) { 807 newArgv[newArgvIdx++] = arg; 808 argi++; 809 if (argi < argc) { 810 newArgv[newArgvIdx++] = (*argv)[argi]; 811 } 812 continue; 813 } 814 if (arg[0] != '-') break; 815 } 816 817 /* Did the user pass an explicit VM type? */ 818 i = KnownVMIndex(arg); 819 if (i >= 0) { 820 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 821 isVMType = 1; 822 *pargc = *pargc - 1; 823 } 824 825 /* Did the user specify an "alternate" VM? */ 826 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 827 isVMType = 1; 828 jvmtype = arg+((arg[1]=='X')? 10 : 12); 829 jvmidx = -1; 830 } 831 832 if (!isVMType) { 833 newArgv[newArgvIdx++] = arg; 834 } 835 } 836 837 /* 838 * Finish copying the arguments if we aborted the above loop. 839 * NOTE that if we aborted via "break" then we did NOT copy the 840 * last argument above, and in addition argi will be less than 841 * argc. 842 */ 843 while (argi < argc) { 844 newArgv[newArgvIdx++] = (*argv)[argi]; 845 argi++; 846 } 847 848 /* argv is null-terminated */ 849 newArgv[newArgvIdx] = 0; 850 851 /* Copy back argv */ 852 *argv = newArgv; 853 *pargc = newArgvIdx; 854 855 /* use the default VM type if not specified (no alias processing) */ 856 if (jvmtype == NULL) { 857 char* result = knownVMs[0].name+1; 858 JLI_TraceLauncher("Default VM: %s\n", result); 859 return result; 860 } 861 862 /* if using an alternate VM, no alias processing */ 863 if (jvmidx < 0) 864 return jvmtype; 865 866 /* Resolve aliases first */ 867 { 868 int loopCount = 0; 869 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 870 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 871 872 if (loopCount > knownVMsCount) { 873 if (!speculative) { 874 JLI_ReportErrorMessage(CFG_ERROR1); 875 exit(1); 876 } else { 877 return "ERROR"; 878 /* break; */ 879 } 880 } 881 882 if (nextIdx < 0) { 883 if (!speculative) { 884 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 885 exit(1); 886 } else { 887 return "ERROR"; 888 } 889 } 890 jvmidx = nextIdx; 891 jvmtype = knownVMs[jvmidx].name+1; 892 loopCount++; 893 } 894 } 895 896 switch (knownVMs[jvmidx].flag) { 897 case VM_WARN: 898 if (!speculative) { 899 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 900 } 901 /* fall through */ 902 case VM_IGNORE: 903 jvmtype = knownVMs[jvmidx=0].name + 1; 904 /* fall through */ 905 case VM_KNOWN: 906 break; 907 case VM_ERROR: 908 if (!speculative) { 909 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 910 exit(1); 911 } else { 912 return "ERROR"; 913 } 914 } 915 916 return jvmtype; 917 } 918 919 /* copied from HotSpot function "atomll()" */ 920 static int 921 parse_size(const char *s, jlong *result) { 922 jlong n = 0; 923 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n); 924 if (args_read != 1) { 925 return 0; 926 } 927 while (*s != '\0' && *s >= '0' && *s <= '9') { 928 s++; 929 } 930 // 4705540: illegal if more characters are found after the first non-digit 931 if (JLI_StrLen(s) > 1) { 932 return 0; 933 } 934 switch (*s) { 935 case 'T': case 't': 936 *result = n * GB * KB; 937 return 1; 938 case 'G': case 'g': 939 *result = n * GB; 940 return 1; 941 case 'M': case 'm': 942 *result = n * MB; 943 return 1; 944 case 'K': case 'k': 945 *result = n * KB; 946 return 1; 947 case '\0': 948 *result = n; 949 return 1; 950 default: 951 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 952 return 0; 953 } 954 } 955 956 /* 957 * Adds a new VM option with the given name and value. 958 */ 959 void 960 AddOption(char *str, void *info) 961 { 962 /* 963 * Expand options array if needed to accommodate at least one more 964 * VM option. 965 */ 966 if (numOptions >= maxOptions) { 967 if (options == 0) { 968 maxOptions = 4; 969 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 970 } else { 971 JavaVMOption *tmp; 972 maxOptions *= 2; 973 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 974 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 975 JLI_MemFree(options); 976 options = tmp; 977 } 978 } 979 options[numOptions].optionString = str; 980 options[numOptions++].extraInfo = info; 981 982 /* 983 * -Xss is used both by the JVM and here to establish the stack size of the thread 984 * created to launch the JVM. In the latter case we need to ensure we don't go 985 * below the minimum stack size allowed. If -Xss is zero that tells the JVM to use 986 * 'default' sizes (either from JVM or system configuration, e.g. 'ulimit -s' on linux), 987 * and is not itself a small stack size that will be rejected. So we ignore -Xss0 here. 988 */ 989 if (JLI_StrCCmp(str, "-Xss") == 0) { 990 jlong tmp; 991 if (parse_size(str + 4, &tmp)) { 992 threadStackSize = tmp; 993 if (threadStackSize > 0 && threadStackSize < (jlong)STACK_SIZE_MINIMUM) { 994 threadStackSize = STACK_SIZE_MINIMUM; 995 } 996 } 997 } 998 999 if (JLI_StrCCmp(str, "-Xmx") == 0) { 1000 jlong tmp; 1001 if (parse_size(str + 4, &tmp)) { 1002 maxHeapSize = tmp; 1003 } 1004 } 1005 1006 if (JLI_StrCCmp(str, "-Xms") == 0) { 1007 jlong tmp; 1008 if (parse_size(str + 4, &tmp)) { 1009 initialHeapSize = tmp; 1010 } 1011 } 1012 } 1013 1014 static void 1015 SetClassPath(const char *s) 1016 { 1017 char *def; 1018 const char *orig = s; 1019 static const char format[] = "-Djava.class.path=%s"; 1020 /* 1021 * usually we should not get a null pointer, but there are cases where 1022 * we might just get one, in which case we simply ignore it, and let the 1023 * caller deal with it 1024 */ 1025 if (s == NULL) 1026 return; 1027 s = JLI_WildcardExpandClasspath(s); 1028 if (s == NULL) 1029 return; 1030 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 1031 // s is became corrupted after expanding wildcards 1032 return; 1033 size_t defSize = sizeof(format) 1034 - 2 /* strlen("%s") */ 1035 + JLI_StrLen(s); 1036 def = JLI_MemAlloc(defSize); 1037 snprintf(def, defSize, format, s); 1038 AddOption(def, NULL); 1039 if (s != orig) 1040 JLI_MemFree((char *) s); 1041 _have_classpath = JNI_TRUE; 1042 } 1043 1044 static void 1045 AddLongFormOption(const char *option, const char *arg) 1046 { 1047 static const char format[] = "%s=%s"; 1048 char *def; 1049 size_t def_len; 1050 1051 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1; 1052 def = JLI_MemAlloc(def_len); 1053 JLI_Snprintf(def, def_len, format, option, arg); 1054 AddOption(def, NULL); 1055 } 1056 1057 static void 1058 SetMainModule(const char *s) 1059 { 1060 static const char format[] = "-Djdk.module.main=%s"; 1061 char* slash = JLI_StrChr(s, '/'); 1062 size_t s_len, def_len; 1063 char *def; 1064 1065 /* value may be <module> or <module>/<mainclass> */ 1066 if (slash == NULL) { 1067 s_len = JLI_StrLen(s); 1068 } else { 1069 s_len = (size_t) (slash - s); 1070 } 1071 def_len = sizeof(format) 1072 - 2 /* strlen("%s") */ 1073 + s_len; 1074 def = JLI_MemAlloc(def_len); 1075 JLI_Snprintf(def, def_len, format, s); 1076 AddOption(def, NULL); 1077 } 1078 1079 /* 1080 * Test if the current argv is an option, i.e. with a leading `-` 1081 * and followed with an argument without a leading `-`. 1082 */ 1083 static jboolean 1084 IsOptionWithArgument(int argc, char** argv) { 1085 char* option; 1086 char* arg; 1087 1088 if (argc <= 1) 1089 return JNI_FALSE; 1090 1091 option = *argv; 1092 arg = *(argv+1); 1093 return *option == '-' && *arg != '-'; 1094 } 1095 1096 /* 1097 * Gets the option, and its argument if the option has an argument. 1098 * It will update *pargc, **pargv to the next option. 1099 */ 1100 static int 1101 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) { 1102 int argc = *pargc; 1103 char** argv = *pargv; 1104 char* arg = *argv; 1105 1106 char* option = arg; 1107 char* value = NULL; 1108 char* equals = NULL; 1109 int kind = LAUNCHER_OPTION; 1110 jboolean has_arg = JNI_FALSE; 1111 1112 // check if this option may be a white-space option with an argument 1113 has_arg = IsOptionWithArgument(argc, argv); 1114 1115 argv++; --argc; 1116 if (IsLauncherOption(arg)) { 1117 if (has_arg) { 1118 value = *argv; 1119 argv++; --argc; 1120 } 1121 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION 1122 : LAUNCHER_OPTION_WITH_ARGUMENT; 1123 } else if (IsModuleOption(arg)) { 1124 kind = VM_LONG_OPTION_WITH_ARGUMENT; 1125 if (has_arg) { 1126 value = *argv; 1127 argv++; --argc; 1128 } 1129 1130 /* 1131 * Support short form alias 1132 */ 1133 if (JLI_StrCmp(arg, "-p") == 0) { 1134 option = "--module-path"; 1135 } 1136 1137 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) { 1138 value = equals+1; 1139 if (JLI_StrCCmp(arg, "--describe-module=") == 0 || 1140 JLI_StrCCmp(arg, "--module=") == 0 || 1141 JLI_StrCCmp(arg, "--class-path=") == 0|| 1142 JLI_StrCCmp(arg, "--source=") == 0) { 1143 kind = LAUNCHER_OPTION_WITH_ARGUMENT; 1144 } else { 1145 kind = VM_LONG_OPTION; 1146 } 1147 } 1148 1149 *pargc = argc; 1150 *pargv = argv; 1151 *poption = option; 1152 *pvalue = value; 1153 return kind; 1154 } 1155 1156 /* 1157 * Parses command line arguments. Returns JNI_FALSE if launcher 1158 * should exit without starting vm, returns JNI_TRUE if vm needs 1159 * to be started to process given options. *pret (the launcher 1160 * process return value) is set to 0 for a normal exit. 1161 */ 1162 static jboolean 1163 ParseArguments(int *pargc, char ***pargv, 1164 int *pmode, char **pwhat, 1165 int *pret) 1166 { 1167 int argc = *pargc; 1168 char **argv = *pargv; 1169 int mode = LM_UNKNOWN; 1170 char *arg = NULL; 1171 bool headless = false; 1172 char *splash_file_path = NULL; // value of "-splash:" option 1173 1174 *pret = 0; 1175 1176 while (argc > 0 && *(arg = *argv) == '-') { 1177 char *option = NULL; 1178 char *value = NULL; 1179 int kind = GetOpt(&argc, &argv, &option, &value); 1180 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0; 1181 jboolean has_arg_any_len = value != NULL; 1182 1183 /* 1184 * Option to set main entry point 1185 */ 1186 if (JLI_StrCmp(arg, "-jar") == 0) { 1187 ARG_CHECK(argc, ARG_ERROR2, arg); 1188 mode = checkMode(mode, LM_JAR, arg); 1189 } else if (JLI_StrCmp(arg, "--module") == 0 || 1190 JLI_StrCCmp(arg, "--module=") == 0 || 1191 JLI_StrCmp(arg, "-m") == 0) { 1192 REPORT_ERROR (has_arg, ARG_ERROR5, arg); 1193 SetMainModule(value); 1194 mode = checkMode(mode, LM_MODULE, arg); 1195 if (has_arg) { 1196 *pwhat = value; 1197 break; 1198 } 1199 } else if (JLI_StrCmp(arg, "--source") == 0 || 1200 JLI_StrCCmp(arg, "--source=") == 0) { 1201 REPORT_ERROR (has_arg, ARG_ERROR13, arg); 1202 mode = LM_SOURCE; 1203 if (has_arg) { 1204 const char *prop = "-Djdk.internal.javac.source="; 1205 size_t size = JLI_StrLen(prop) + JLI_StrLen(value) + 1; 1206 char *propValue = (char *)JLI_MemAlloc(size); 1207 JLI_Snprintf(propValue, size, "%s%s", prop, value); 1208 AddOption(propValue, NULL); 1209 } 1210 } else if (JLI_StrCmp(arg, "--class-path") == 0 || 1211 JLI_StrCCmp(arg, "--class-path=") == 0 || 1212 JLI_StrCmp(arg, "-classpath") == 0 || 1213 JLI_StrCmp(arg, "-cp") == 0) { 1214 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg); 1215 SetClassPath(value); 1216 } else if (JLI_StrCmp(arg, "--list-modules") == 0) { 1217 listModules = JNI_TRUE; 1218 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) { 1219 showResolvedModules = JNI_TRUE; 1220 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) { 1221 AddOption("-Djdk.module.validation=true", NULL); 1222 validateModules = JNI_TRUE; 1223 } else if (JLI_StrCmp(arg, "--describe-module") == 0 || 1224 JLI_StrCCmp(arg, "--describe-module=") == 0 || 1225 JLI_StrCmp(arg, "-d") == 0) { 1226 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg); 1227 describeModule = value; 1228 /* 1229 * Parse white-space options 1230 */ 1231 } else if (has_arg) { 1232 if (kind == VM_LONG_OPTION) { 1233 AddOption(option, NULL); 1234 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) { 1235 AddLongFormOption(option, value); 1236 } 1237 /* 1238 * Error missing argument 1239 */ 1240 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 || 1241 JLI_StrCmp(arg, "-p") == 0 || 1242 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) { 1243 REPORT_ERROR (has_arg, ARG_ERROR4, arg); 1244 1245 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) { 1246 REPORT_ERROR (has_arg, ARG_ERROR6, arg); 1247 /* 1248 * The following cases will cause the argument parsing to stop 1249 */ 1250 } else if (JLI_StrCmp(arg, "-help") == 0 || 1251 JLI_StrCmp(arg, "-h") == 0 || 1252 JLI_StrCmp(arg, "-?") == 0) { 1253 printUsageKind = HELP_FULL; 1254 return JNI_TRUE; 1255 } else if (JLI_StrCmp(arg, "--help") == 0) { 1256 printUsageKind = HELP_FULL; 1257 printTo = USE_STDOUT; 1258 return JNI_TRUE; 1259 } else if (JLI_StrCmp(arg, "-version") == 0) { 1260 printVersion = JNI_TRUE; 1261 return JNI_TRUE; 1262 } else if (JLI_StrCmp(arg, "--version") == 0) { 1263 printVersion = JNI_TRUE; 1264 printTo = USE_STDOUT; 1265 return JNI_TRUE; 1266 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1267 showVersion = JNI_TRUE; 1268 } else if (JLI_StrCmp(arg, "--show-version") == 0) { 1269 showVersion = JNI_TRUE; 1270 printTo = USE_STDOUT; 1271 } else if (JLI_StrCmp(arg, "--dry-run") == 0) { 1272 dryRun = JNI_TRUE; 1273 } else if (JLI_StrCmp(arg, "-X") == 0) { 1274 printUsageKind = HELP_EXTRA; 1275 return JNI_TRUE; 1276 } else if (JLI_StrCmp(arg, "--help-extra") == 0) { 1277 printUsageKind = HELP_EXTRA; 1278 printTo = USE_STDOUT; 1279 return JNI_TRUE; 1280 /* 1281 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1282 * In the latter case, any SUBOPT value not recognized will default to "all" 1283 */ 1284 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1285 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1286 showSettings = arg; 1287 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1288 AddOption("-Dsun.java.launcher.diag=true", NULL); 1289 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) { 1290 AddOption("-Djdk.module.showModuleResolution=true", NULL); 1291 /* 1292 * The following case provide backward compatibility with old-style 1293 * command line options. 1294 */ 1295 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1296 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1297 return JNI_FALSE; 1298 } else if (JLI_StrCmp(arg, "--full-version") == 0) { 1299 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion()); 1300 return JNI_FALSE; 1301 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1302 JLI_ReportErrorMessage(ARG_DEPRECATED, "-verbosegc"); 1303 AddOption("-verbose:gc", NULL); 1304 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1305 JLI_ReportErrorMessage(ARG_DEPRECATED, "-debug"); 1306 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1307 JLI_ReportErrorMessage(ARG_DEPRECATED, "-noclassgc"); 1308 AddOption("-Xnoclassgc", NULL); 1309 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1310 JLI_ReportErrorMessage(ARG_DEPRECATED, "-verify"); 1311 AddOption("-Xverify:all", NULL); 1312 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1313 JLI_ReportErrorMessage(ARG_DEPRECATED, "-verifyremote"); 1314 AddOption("-Xverify:remote", NULL); 1315 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1316 /* 1317 * Note that no 'deprecated' message is needed here because the VM 1318 * issues 'deprecated' messages for -noverify and -Xverify:none. 1319 */ 1320 AddOption("-Xverify:none", NULL); 1321 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1322 JLI_StrCCmp(arg, "-ms") == 0 || 1323 JLI_StrCCmp(arg, "-mx") == 0) { 1324 JLI_ReportErrorMessage("Warning: %.3s option is deprecated" 1325 " and may be removed in a future release.", arg); 1326 size_t tmpSize = JLI_StrLen(arg) + 6; 1327 char *tmp = JLI_MemAlloc(tmpSize); 1328 snprintf(tmp, tmpSize, "-X%s", arg + 1); /* skip '-' */ 1329 AddOption(tmp, NULL); 1330 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1331 splash_file_path = arg + 8; 1332 } else if (JLI_StrCmp(arg, "--disable-@files") == 0) { 1333 ; /* Ignore --disable-@files option already handled */ 1334 } else if (ProcessPlatformOption(arg)) { 1335 ; /* Processing of platform dependent options */ 1336 } else { 1337 /* java.class.path set on the command line */ 1338 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) { 1339 _have_classpath = JNI_TRUE; 1340 } else if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 1341 /* 1342 * Checking for headless toolkit option in the same way as AWT does: 1343 * "true" means true and any other value means false 1344 */ 1345 headless = true; 1346 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 1347 headless = false; 1348 } 1349 AddOption(arg, NULL); 1350 } 1351 1352 /* 1353 * Check for CDS option 1354 */ 1355 if (JLI_StrCmp(arg, "-Xshare:dump") == 0) { 1356 dumpSharedSpaces = JNI_TRUE; 1357 } 1358 if (JLI_StrCmp(arg, "-XX:AOTMode=create") == 0) { 1359 // Alias for -Xshare:dump 1360 dumpSharedSpaces = JNI_TRUE; 1361 } 1362 } 1363 1364 if (*pwhat == NULL && --argc >= 0) { 1365 *pwhat = *argv++; 1366 } 1367 1368 if (*pwhat == NULL) { 1369 /* LM_UNKNOWN okay for options that exit */ 1370 if (!listModules && !describeModule && !validateModules && !dumpSharedSpaces) { 1371 *pret = 1; 1372 printUsageKind = HELP_CONCISE; 1373 } 1374 } else if (mode == LM_UNKNOWN) { 1375 if (!_have_classpath) { 1376 SetClassPath("."); 1377 } 1378 /* If neither of -m, -jar, --source option is set, then the 1379 * launcher mode is LM_UNKNOWN. In such cases, we determine the 1380 * mode as LM_CLASS or LM_SOURCE per the input file. */ 1381 mode = IsSourceFile(arg) ? LM_SOURCE : LM_CLASS; 1382 } else if (mode == LM_CLASS && IsSourceFile(arg)) { 1383 /* override LM_CLASS mode if given a source file */ 1384 mode = LM_SOURCE; 1385 } 1386 1387 if (mode == LM_SOURCE) { 1388 // communicate the launcher mode to runtime 1389 AddOption("-Dsun.java.launcher.mode=source", NULL); 1390 AddOption("--add-modules=ALL-DEFAULT", NULL); 1391 *pwhat = SOURCE_LAUNCHER_MAIN_ENTRY; 1392 // adjust (argc, argv) so that the name of the source file 1393 // is included in the args passed to the source launcher 1394 // main entry class 1395 *pargc = argc + 1; 1396 *pargv = argv - 1; 1397 } else { 1398 if (argc >= 0) { 1399 *pargc = argc; 1400 *pargv = argv; 1401 } 1402 } 1403 1404 *pmode = mode; 1405 1406 if (!headless) { 1407 char *jar_path = NULL; 1408 if (mode == LM_JAR) { 1409 jar_path = *pwhat; 1410 } 1411 // Not in headless mode. We now set a couple of env variables that 1412 // will be used later by ShowSplashScreen(). 1413 SetupSplashScreenEnvVars(splash_file_path, jar_path); 1414 } 1415 1416 return JNI_TRUE; 1417 } 1418 1419 /* 1420 * Sets the relevant environment variables that are subsequently used by 1421 * the ShowSplashScreen() function. The splash_file_path and jar_path parameters 1422 * are used to determine which environment variables to set. 1423 * The splash_file_path is the value that was provided to the "-splash:" option 1424 * when launching java. It may be null, which implies the "-splash:" option wasn't used. 1425 * The jar_path is the value that was provided to the "-jar" option when launching java. 1426 * It too may be null, which implies the "-jar" option wasn't used. 1427 */ 1428 static void 1429 SetupSplashScreenEnvVars(const char *splash_file_path, char *jar_path) { 1430 // Command line specified "-splash:" takes priority over manifest one. 1431 if (splash_file_path) { 1432 // We set up the splash file name as a env variable which then gets 1433 // used when showing the splash screen in ShowSplashScreen(). 1434 1435 // create the string of the form _JAVA_SPLASH_FILE=<val> 1436 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=") 1437 + JLI_StrLen(splash_file_path) + 1); 1438 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1439 JLI_StrCat(splash_file_entry, splash_file_path); 1440 putenv(splash_file_entry); 1441 return; 1442 } 1443 if (!jar_path) { 1444 // no jar to look into for "SplashScreen-Image" manifest attribute 1445 return; 1446 } 1447 // parse the jar's manifest to find any "SplashScreen-Image" 1448 int res = 0; 1449 manifest_info info; 1450 if ((res = JLI_ParseManifest(jar_path, &info)) != 0) { 1451 JLI_FreeManifest(); // cleanup any manifest structure 1452 if (res == -1) { 1453 JLI_ReportErrorMessage(JAR_ERROR2, jar_path); 1454 } else { 1455 JLI_ReportErrorMessage(JAR_ERROR3, jar_path); 1456 } 1457 exit(1); 1458 } 1459 if (!info.splashscreen_image_file_name) { 1460 JLI_FreeManifest(); // cleanup the manifest structure 1461 // no "SplashScreen-Image" in jar's manifest 1462 return; 1463 } 1464 // The jar's manifest had a "Splashscreen-Image" specified. We set up the jar entry name 1465 // and the jar file name as env variables which then get used when showing the splash screen 1466 // in ShowSplashScreen(). 1467 1468 // create the string of the form _JAVA_SPLASH_FILE=<val> 1469 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=") 1470 + JLI_StrLen(info.splashscreen_image_file_name) + 1); 1471 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1472 JLI_StrCat(splash_file_entry, info.splashscreen_image_file_name); 1473 putenv(splash_file_entry); 1474 // create the string of the form _JAVA_SPLASH_JAR=<val> 1475 splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=") + JLI_StrLen(jar_path) + 1); 1476 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 1477 JLI_StrCat(splash_jar_entry, jar_path); 1478 putenv(splash_jar_entry); 1479 JLI_FreeManifest(); // cleanup the manifest structure 1480 } 1481 1482 /* 1483 * Initializes the Java Virtual Machine. Also frees options array when 1484 * finished. 1485 */ 1486 static jboolean 1487 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1488 { 1489 JavaVMInitArgs args; 1490 jint r; 1491 1492 memset(&args, 0, sizeof(args)); 1493 args.version = JNI_VERSION_1_2; 1494 args.nOptions = numOptions; 1495 args.options = options; 1496 args.ignoreUnrecognized = JNI_FALSE; 1497 1498 if (JLI_IsTraceLauncher()) { 1499 int i = 0; 1500 printf("JavaVM args:\n "); 1501 printf("version 0x%08lx, ", (long)args.version); 1502 printf("ignoreUnrecognized is %s, ", 1503 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1504 printf("nOptions is %ld\n", (long)args.nOptions); 1505 for (i = 0; i < numOptions; i++) 1506 printf(" option[%2d] = '%s'\n", 1507 i, args.options[i].optionString); 1508 } 1509 1510 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1511 JLI_MemFree(options); 1512 return r == JNI_OK; 1513 } 1514 1515 static jclass helperClass = NULL; 1516 1517 jclass 1518 GetLauncherHelperClass(JNIEnv *env) 1519 { 1520 if (helperClass == NULL) { 1521 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1522 "sun/launcher/LauncherHelper")); 1523 } 1524 return helperClass; 1525 } 1526 1527 static jmethodID makePlatformStringMID = NULL; 1528 /* 1529 * Returns a new Java string object for the specified platform string. 1530 */ 1531 static jstring 1532 NewPlatformString(JNIEnv *env, char *s) 1533 { 1534 int len = (int)JLI_StrLen(s); 1535 jbyteArray ary; 1536 jclass cls = GetLauncherHelperClass(env); 1537 NULL_CHECK0(cls); 1538 if (s == NULL) 1539 return 0; 1540 1541 ary = (*env)->NewByteArray(env, len); 1542 if (ary != 0) { 1543 jstring str = 0; 1544 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1545 if (!(*env)->ExceptionCheck(env)) { 1546 if (makePlatformStringMID == NULL) { 1547 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1548 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1549 } 1550 str = (*env)->CallStaticObjectMethod(env, cls, 1551 makePlatformStringMID, USE_STDERR, ary); 1552 CHECK_EXCEPTION_RETURN_VALUE(0); 1553 (*env)->DeleteLocalRef(env, ary); 1554 return str; 1555 } 1556 } 1557 return 0; 1558 } 1559 1560 /* 1561 * Returns a new array of Java string objects for the specified 1562 * array of platform strings. 1563 */ 1564 jobjectArray 1565 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1566 { 1567 jarray cls; 1568 jarray ary; 1569 int i; 1570 1571 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1572 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1573 CHECK_EXCEPTION_RETURN_VALUE(0); 1574 for (i = 0; i < strc; i++) { 1575 jstring str = NewPlatformString(env, *strv++); 1576 NULL_CHECK0(str); 1577 (*env)->SetObjectArrayElement(env, ary, i, str); 1578 (*env)->DeleteLocalRef(env, str); 1579 } 1580 return ary; 1581 } 1582 1583 /* 1584 * Calls LauncherHelper::checkAndLoadMain to verify that the main class 1585 * is present, it is ok to load the main class and then load the main class. 1586 * For more details refer to the java implementation. 1587 */ 1588 static jclass 1589 LoadMainClass(JNIEnv *env, int mode, char *name) 1590 { 1591 jmethodID mid; 1592 jstring str; 1593 jobject result; 1594 jlong start = 0, end = 0; 1595 jclass cls = GetLauncherHelperClass(env); 1596 NULL_CHECK0(cls); 1597 if (JLI_IsTraceLauncher()) { 1598 start = CurrentTimeMicros(); 1599 } 1600 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1601 "checkAndLoadMain", 1602 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1603 1604 NULL_CHECK0(str = NewPlatformString(env, name)); 1605 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1606 USE_STDERR, mode, str)); 1607 1608 if (JLI_IsTraceLauncher()) { 1609 end = CurrentTimeMicros(); 1610 printf("%ld micro seconds to load main class\n", (long)(end-start)); 1611 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1612 } 1613 1614 return (jclass)result; 1615 } 1616 1617 static jclass 1618 GetApplicationClass(JNIEnv *env) 1619 { 1620 jmethodID mid; 1621 jclass appClass; 1622 jclass cls = GetLauncherHelperClass(env); 1623 NULL_CHECK0(cls); 1624 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1625 "getApplicationClass", 1626 "()Ljava/lang/Class;")); 1627 1628 appClass = (*env)->CallStaticObjectMethod(env, cls, mid); 1629 CHECK_EXCEPTION_RETURN_VALUE(0); 1630 return appClass; 1631 } 1632 1633 static char* expandWildcardOnLongOpt(char* arg) { 1634 char *p, *value; 1635 size_t optLen, valueLen; 1636 p = JLI_StrChr(arg, '='); 1637 1638 if (p == NULL || p[1] == '\0') { 1639 JLI_ReportErrorMessage(ARG_ERROR1, arg); 1640 exit(1); 1641 } 1642 p++; 1643 value = (char *) JLI_WildcardExpandClasspath(p); 1644 if (p == value) { 1645 // no wildcard 1646 return arg; 1647 } 1648 1649 optLen = p - arg; 1650 valueLen = JLI_StrLen(value); 1651 p = JLI_MemAlloc(optLen + valueLen + 1); 1652 memcpy(p, arg, optLen); 1653 memcpy(p + optLen, value, valueLen); 1654 p[optLen + valueLen] = '\0'; 1655 return p; 1656 } 1657 1658 /* 1659 * For tools, convert command line args thus: 1660 * javac -cp foo:foo/"*" -J-ms32m ... 1661 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1662 * 1663 * Takes 4 parameters, and returns the populated arguments 1664 */ 1665 static void 1666 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1667 { 1668 int argc = *pargc; 1669 char **argv = *pargv; 1670 int nargc = argc + jargc; 1671 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1672 int i; 1673 1674 *pargc = nargc; 1675 *pargv = nargv; 1676 1677 /* Copy the VM arguments (i.e. prefixed with -J) */ 1678 for (i = 0; i < jargc; i++) { 1679 const char *arg = jargv[i]; 1680 if (arg[0] == '-' && arg[1] == 'J') { 1681 assert(arg[2] != '\0' && "Invalid JAVA_ARGS or EXTRA_JAVA_ARGS defined by build"); 1682 *nargv++ = JLI_StringDup(arg + 2); 1683 } 1684 } 1685 1686 for (i = 0; i < argc; i++) { 1687 char *arg = argv[i]; 1688 if (arg[0] == '-' && arg[1] == 'J') { 1689 if (arg[2] == '\0') { 1690 JLI_ReportErrorMessage(ARG_ERROR3); 1691 exit(1); 1692 } 1693 *nargv++ = arg + 2; 1694 } 1695 } 1696 1697 /* Copy the rest of the arguments */ 1698 for (i = 0; i < jargc ; i++) { 1699 const char *arg = jargv[i]; 1700 if (arg[0] != '-' || arg[1] != 'J') { 1701 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1702 } 1703 } 1704 for (i = 0; i < argc; i++) { 1705 char *arg = argv[i]; 1706 if (arg[0] == '-') { 1707 if (arg[1] == 'J') 1708 continue; 1709 if (IsWildCardEnabled()) { 1710 if (IsClassPathOption(arg) && i < argc - 1) { 1711 *nargv++ = arg; 1712 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1713 i++; 1714 continue; 1715 } 1716 if (JLI_StrCCmp(arg, "--class-path=") == 0) { 1717 *nargv++ = expandWildcardOnLongOpt(arg); 1718 continue; 1719 } 1720 } 1721 } 1722 *nargv++ = arg; 1723 } 1724 *nargv = 0; 1725 } 1726 1727 /* 1728 * For our tools, we try to add 3 VM options: 1729 * -Denv.class.path=<envcp> 1730 * -Dapplication.home=<apphome> 1731 * -Djava.class.path=<appcp> 1732 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1733 * tells javac where to find binary classes through this environment 1734 * variable. Notice that users will be able to compile against our 1735 * tools classes (sun.tools.javac.Main) only if they explicitly add 1736 * tools.jar to CLASSPATH. 1737 * <apphome> is the directory where the application is installed. 1738 * <appcp> is the classpath to where our apps' classfiles are. 1739 */ 1740 static jboolean 1741 AddApplicationOptions(int cpathc, const char **cpathv) 1742 { 1743 char *envcp, *appcp, *apphome; 1744 char home[MAXPATHLEN]; /* application home */ 1745 char separator[] = { PATH_SEPARATOR, '\0' }; 1746 int size, i; 1747 1748 { 1749 const char *s = getenv("CLASSPATH"); 1750 if (s) { 1751 s = (char *) JLI_WildcardExpandClasspath(s); 1752 /* 40 for -Denv.class.path= */ 1753 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1754 size_t envcpSize = JLI_StrLen(s) + 40; 1755 envcp = (char *)JLI_MemAlloc(envcpSize); 1756 snprintf(envcp, envcpSize, "-Denv.class.path=%s", s); 1757 AddOption(envcp, NULL); 1758 } 1759 } 1760 } 1761 1762 if (!GetApplicationHome(home, sizeof(home))) { 1763 JLI_ReportErrorMessage(CFG_ERROR5); 1764 return JNI_FALSE; 1765 } 1766 1767 /* 40 for '-Dapplication.home=' */ 1768 size_t apphomeSize = JLI_StrLen(home) + 40; 1769 apphome = (char *)JLI_MemAlloc(apphomeSize); 1770 snprintf(apphome, apphomeSize, "-Dapplication.home=%s", home); 1771 AddOption(apphome, NULL); 1772 1773 /* How big is the application's classpath? */ 1774 if (cpathc > 0) { 1775 size = 40; /* 40: "-Djava.class.path=" */ 1776 for (i = 0; i < cpathc; i++) { 1777 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1778 } 1779 appcp = (char *)JLI_MemAlloc(size + 1); 1780 JLI_StrCpy(appcp, "-Djava.class.path="); 1781 for (i = 0; i < cpathc; i++) { 1782 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1783 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1784 JLI_StrCat(appcp, separator); /* ; */ 1785 } 1786 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1787 AddOption(appcp, NULL); 1788 } 1789 return JNI_TRUE; 1790 } 1791 1792 /* 1793 * inject the -Dsun.java.command pseudo property into the args structure 1794 * this pseudo property is used in the HotSpot VM to expose the 1795 * Java class name and arguments to the main method to the VM. The 1796 * HotSpot VM uses this pseudo property to store the Java class name 1797 * (or jar file name) and the arguments to the class's main method 1798 * to the instrumentation memory region. The sun.java.command pseudo 1799 * property is not exported by HotSpot to the Java layer. 1800 */ 1801 void 1802 SetJavaCommandLineProp(char *what, int argc, char **argv) 1803 { 1804 1805 int i = 0; 1806 size_t len = 0; 1807 char* javaCommand = NULL; 1808 char* dashDstr = "-Dsun.java.command="; 1809 1810 if (what == NULL) { 1811 /* unexpected, one of these should be set. just return without 1812 * setting the property 1813 */ 1814 return; 1815 } 1816 1817 /* determine the amount of memory to allocate assuming 1818 * the individual components will be space separated 1819 */ 1820 len = JLI_StrLen(what); 1821 for (i = 0; i < argc; i++) { 1822 len += JLI_StrLen(argv[i]) + 1; 1823 } 1824 1825 /* allocate the memory */ 1826 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1827 1828 /* build the -D string */ 1829 *javaCommand = '\0'; 1830 JLI_StrCat(javaCommand, dashDstr); 1831 JLI_StrCat(javaCommand, what); 1832 1833 for (i = 0; i < argc; i++) { 1834 /* the components of the string are space separated. In 1835 * the case of embedded white space, the relationship of 1836 * the white space separated components to their true 1837 * positional arguments will be ambiguous. This issue may 1838 * be addressed in a future release. 1839 */ 1840 JLI_StrCat(javaCommand, " "); 1841 JLI_StrCat(javaCommand, argv[i]); 1842 } 1843 1844 AddOption(javaCommand, NULL); 1845 } 1846 1847 /* 1848 * JVM would like to know if it's created by a standard Sun launcher, or by 1849 * user native application, the following property indicates the former. 1850 */ 1851 static void SetJavaLauncherProp() { 1852 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1853 } 1854 1855 /* 1856 * Prints the version information from the java.version and other properties. 1857 */ 1858 static void 1859 PrintJavaVersion(JNIEnv *env) 1860 { 1861 jclass ver; 1862 jmethodID print; 1863 1864 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps")); 1865 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1866 ver, 1867 "print", 1868 "(Z)V" 1869 ) 1870 ); 1871 1872 (*env)->CallStaticVoidMethod(env, ver, print, printTo); 1873 } 1874 1875 /* 1876 * Prints all the Java settings, see the java implementation for more details. 1877 */ 1878 static void 1879 ShowSettings(JNIEnv *env, char *optString) 1880 { 1881 jmethodID showSettingsID; 1882 jstring joptString; 1883 jclass cls = GetLauncherHelperClass(env); 1884 NULL_CHECK(cls); 1885 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1886 "showSettings", "(ZLjava/lang/String;JJJ)V")); 1887 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1888 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1889 USE_STDERR, 1890 joptString, 1891 (jlong)initialHeapSize, 1892 (jlong)maxHeapSize, 1893 (jlong)threadStackSize); 1894 } 1895 1896 /** 1897 * Show resolved modules 1898 */ 1899 static void 1900 ShowResolvedModules(JNIEnv *env) 1901 { 1902 jmethodID showResolvedModulesID; 1903 jclass cls = GetLauncherHelperClass(env); 1904 NULL_CHECK(cls); 1905 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls, 1906 "showResolvedModules", "()V")); 1907 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID); 1908 } 1909 1910 /** 1911 * List observable modules 1912 */ 1913 static void 1914 ListModules(JNIEnv *env) 1915 { 1916 jmethodID listModulesID; 1917 jclass cls = GetLauncherHelperClass(env); 1918 NULL_CHECK(cls); 1919 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls, 1920 "listModules", "()V")); 1921 (*env)->CallStaticVoidMethod(env, cls, listModulesID); 1922 } 1923 1924 /** 1925 * Describe a module 1926 */ 1927 static void 1928 DescribeModule(JNIEnv *env, char *optString) 1929 { 1930 jmethodID describeModuleID; 1931 jstring joptString = NULL; 1932 jclass cls = GetLauncherHelperClass(env); 1933 NULL_CHECK(cls); 1934 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls, 1935 "describeModule", "(Ljava/lang/String;)V")); 1936 NULL_CHECK(joptString = NewPlatformString(env, optString)); 1937 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString); 1938 } 1939 1940 /* 1941 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1942 */ 1943 static void 1944 PrintUsage(JNIEnv* env, enum HelpKind printUsageKind) 1945 { 1946 jmethodID initHelp, vmSelect, vmSynonym; 1947 jmethodID printHelp, printConciseUsageMessage, printXUsageMessage; 1948 jstring jprogname, vm1, vm2; 1949 int i; 1950 jclass cls = GetLauncherHelperClass(env); 1951 NULL_CHECK(cls); 1952 switch (printUsageKind) { 1953 case HELP_NONE: break; 1954 case HELP_CONCISE: 1955 NULL_CHECK(printConciseUsageMessage = (*env)->GetStaticMethodID(env, cls, 1956 "printConciseUsageMessage", "(Z)V")); 1957 (*env)->CallStaticVoidMethod(env, cls, printConciseUsageMessage, printTo); 1958 break; 1959 case HELP_EXTRA: 1960 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1961 "printXUsageMessage", "(Z)V")); 1962 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo); 1963 break; 1964 case HELP_FULL: 1965 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1966 "initHelpMessage", "(Ljava/lang/String;)V")); 1967 1968 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1969 "(Ljava/lang/String;Ljava/lang/String;)V")); 1970 1971 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1972 "appendVmSynonymMessage", 1973 "(Ljava/lang/String;Ljava/lang/String;)V")); 1974 1975 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1976 "printHelpMessage", "(Z)V")); 1977 1978 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1979 1980 /* Initialize the usage message with the usual preamble */ 1981 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1982 CHECK_EXCEPTION_RETURN(); 1983 1984 1985 /* Assemble the other variant part of the usage */ 1986 for (i=1; i<knownVMsCount; i++) { 1987 if (knownVMs[i].flag == VM_KNOWN) { 1988 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1989 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 1990 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1991 CHECK_EXCEPTION_RETURN(); 1992 } 1993 } 1994 for (i=1; i<knownVMsCount; i++) { 1995 if (knownVMs[i].flag == VM_ALIASED_TO) { 1996 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1997 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 1998 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1999 CHECK_EXCEPTION_RETURN(); 2000 } 2001 } 2002 2003 /* Complete the usage message and print to stderr*/ 2004 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo); 2005 break; 2006 } 2007 return; 2008 } 2009 2010 /* 2011 * Read the jvm.cfg file and fill the knownJVMs[] array. 2012 * 2013 * The functionality of the jvm.cfg file is subject to change without 2014 * notice and the mechanism will be removed in the future. 2015 * 2016 * The lexical structure of the jvm.cfg file is as follows: 2017 * 2018 * jvmcfg := { vmLine } 2019 * vmLine := knownLine 2020 * | aliasLine 2021 * | warnLine 2022 * | ignoreLine 2023 * | errorLine 2024 * | predicateLine 2025 * | commentLine 2026 * knownLine := flag "KNOWN" EOL 2027 * warnLine := flag "WARN" EOL 2028 * ignoreLine := flag "IGNORE" EOL 2029 * errorLine := flag "ERROR" EOL 2030 * aliasLine := flag "ALIASED_TO" flag EOL 2031 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 2032 * commentLine := "#" text EOL 2033 * flag := "-" identifier 2034 * 2035 * The semantics are that when someone specifies a flag on the command line: 2036 * - if the flag appears on a knownLine, then the identifier is used as 2037 * the name of the directory holding the JVM library (the name of the JVM). 2038 * - if the flag appears as the first flag on an aliasLine, the identifier 2039 * of the second flag is used as the name of the JVM. 2040 * - if the flag appears on a warnLine, the identifier is used as the 2041 * name of the JVM, but a warning is generated. 2042 * - if the flag appears on an ignoreLine, the identifier is recognized as the 2043 * name of a JVM, but the identifier is ignored and the default vm used 2044 * - if the flag appears on an errorLine, an error is generated. 2045 * - if the flag appears as the first flag on a predicateLine, and 2046 * the machine on which you are running passes the predicate indicated, 2047 * then the identifier of the second flag is used as the name of the JVM, 2048 * otherwise the identifier of the first flag is used as the name of the JVM. 2049 * If no flag is given on the command line, the first vmLine of the jvm.cfg 2050 * file determines the name of the JVM. 2051 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 2052 * since they only make sense if someone hasn't specified the name of the 2053 * JVM on the command line. 2054 * 2055 * The intent of the jvm.cfg file is to allow several JVM libraries to 2056 * be installed in different subdirectories of a single JDK installation, 2057 * for space-savings and convenience in testing. 2058 * The intent is explicitly not to provide a full aliasing or predicate 2059 * mechanism. 2060 */ 2061 jint 2062 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 2063 { 2064 FILE *jvmCfg; 2065 char line[MAXPATHLEN+20]; 2066 int cnt = 0; 2067 int lineno = 0; 2068 jlong start = 0, end = 0; 2069 int vmType; 2070 char *tmpPtr; 2071 char *altVMName = NULL; 2072 static char *whiteSpace = " \t"; 2073 if (JLI_IsTraceLauncher()) { 2074 start = CurrentTimeMicros(); 2075 } 2076 2077 jvmCfg = fopen(jvmCfgName, "r"); 2078 if (jvmCfg == NULL) { 2079 if (!speculative) { 2080 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 2081 exit(1); 2082 } else { 2083 return -1; 2084 } 2085 } 2086 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 2087 vmType = VM_UNKNOWN; 2088 lineno++; 2089 if (line[0] == '#') 2090 continue; 2091 if (line[0] != '-') { 2092 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 2093 } 2094 if (cnt >= knownVMsLimit) { 2095 GrowKnownVMs(cnt); 2096 } 2097 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 2098 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 2099 if (*tmpPtr == 0) { 2100 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2101 } else { 2102 /* Null-terminate this string for JLI_StringDup below */ 2103 *tmpPtr++ = 0; 2104 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2105 if (*tmpPtr == 0) { 2106 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2107 } else { 2108 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 2109 vmType = VM_KNOWN; 2110 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 2111 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2112 if (*tmpPtr != 0) { 2113 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2114 } 2115 if (*tmpPtr == 0) { 2116 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2117 } else { 2118 /* Null terminate altVMName */ 2119 altVMName = tmpPtr; 2120 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2121 *tmpPtr = 0; 2122 vmType = VM_ALIASED_TO; 2123 } 2124 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 2125 vmType = VM_WARN; 2126 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 2127 vmType = VM_IGNORE; 2128 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 2129 vmType = VM_ERROR; 2130 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 2131 /* ignored */ 2132 } else { 2133 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 2134 vmType = VM_KNOWN; 2135 } 2136 } 2137 } 2138 2139 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 2140 if (vmType != VM_UNKNOWN) { 2141 knownVMs[cnt].name = JLI_StringDup(line); 2142 knownVMs[cnt].flag = vmType; 2143 switch (vmType) { 2144 default: 2145 break; 2146 case VM_ALIASED_TO: 2147 knownVMs[cnt].alias = JLI_StringDup(altVMName); 2148 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 2149 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 2150 break; 2151 } 2152 cnt++; 2153 } 2154 } 2155 fclose(jvmCfg); 2156 knownVMsCount = cnt; 2157 2158 if (JLI_IsTraceLauncher()) { 2159 end = CurrentTimeMicros(); 2160 printf("%ld micro seconds to parse jvm.cfg\n", (long)(end-start)); 2161 } 2162 2163 return cnt; 2164 } 2165 2166 2167 static void 2168 GrowKnownVMs(int minimum) 2169 { 2170 struct vmdesc* newKnownVMs; 2171 int newMax; 2172 2173 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 2174 if (newMax <= minimum) { 2175 newMax = minimum; 2176 } 2177 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 2178 if (knownVMs != NULL) { 2179 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 2180 } 2181 JLI_MemFree(knownVMs); 2182 knownVMs = newKnownVMs; 2183 knownVMsLimit = newMax; 2184 } 2185 2186 2187 /* Returns index of VM or -1 if not found */ 2188 static int 2189 KnownVMIndex(const char* name) 2190 { 2191 int i; 2192 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 2193 for (i = 0; i < knownVMsCount; i++) { 2194 if (!JLI_StrCmp(name, knownVMs[i].name)) { 2195 return i; 2196 } 2197 } 2198 return -1; 2199 } 2200 2201 static void 2202 FreeKnownVMs() 2203 { 2204 int i; 2205 for (i = 0; i < knownVMsCount; i++) { 2206 JLI_MemFree(knownVMs[i].name); 2207 knownVMs[i].name = NULL; 2208 } 2209 JLI_MemFree(knownVMs); 2210 } 2211 2212 /* 2213 * Displays the splash screen according to the jar file name 2214 * and image file names stored in environment variables 2215 */ 2216 void 2217 ShowSplashScreen() 2218 { 2219 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 2220 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 2221 int data_size; 2222 void *image_data = NULL; 2223 float scale_factor = 1; 2224 char *scaled_splash_name = NULL; 2225 jboolean isImageScaled = JNI_FALSE; 2226 size_t maxScaledImgNameLength = 0; 2227 if (file_name == NULL){ 2228 return; 2229 } 2230 2231 if (!DoSplashInit()) { 2232 goto exit; 2233 } 2234 2235 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name); 2236 2237 scaled_splash_name = JLI_MemAlloc( 2238 maxScaledImgNameLength * sizeof(char)); 2239 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name, 2240 &scale_factor, 2241 scaled_splash_name, maxScaledImgNameLength); 2242 if (jar_name) { 2243 2244 if (isImageScaled) { 2245 image_data = JLI_JarUnpackFile( 2246 jar_name, scaled_splash_name, &data_size); 2247 } 2248 2249 if (!image_data) { 2250 scale_factor = 1; 2251 image_data = JLI_JarUnpackFile( 2252 jar_name, file_name, &data_size); 2253 } 2254 if (image_data) { 2255 DoSplashSetScaleFactor(scale_factor); 2256 DoSplashLoadMemory(image_data, data_size); 2257 JLI_MemFree(image_data); 2258 } else { 2259 DoSplashClose(); 2260 } 2261 } else { 2262 if (isImageScaled) { 2263 DoSplashSetScaleFactor(scale_factor); 2264 DoSplashLoadFile(scaled_splash_name); 2265 } else { 2266 DoSplashLoadFile(file_name); 2267 } 2268 } 2269 JLI_MemFree(scaled_splash_name); 2270 2271 DoSplashSetFileJarName(file_name, jar_name); 2272 2273 exit: 2274 /* 2275 * Done with all command line processing and potential re-execs so 2276 * clean up the environment. 2277 */ 2278 (void)UnsetEnv(MAIN_CLASS_ENV_ENTRY); 2279 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 2280 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 2281 2282 JLI_MemFree(splash_jar_entry); 2283 JLI_MemFree(splash_file_entry); 2284 2285 } 2286 2287 static const char* GetFullVersion() 2288 { 2289 return _fVersion; 2290 } 2291 2292 static const char* GetProgramName() 2293 { 2294 return _program_name; 2295 } 2296 2297 static const char* GetLauncherName() 2298 { 2299 return _launcher_name; 2300 } 2301 2302 static jboolean IsJavaArgs() 2303 { 2304 return _is_java_args; 2305 } 2306 2307 static jboolean 2308 IsWildCardEnabled() 2309 { 2310 return _wc_enabled; 2311 } 2312 2313 int 2314 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 2315 int argc, char **argv, 2316 int mode, char *what, int ret) 2317 { 2318 if (threadStackSize == 0) { 2319 /* 2320 * If the user hasn't specified a non-zero stack size ask the JVM for its default. 2321 * A returned 0 means 'use the system default' for a platform, e.g., Windows. 2322 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 2323 * return its default stack size through the init args structure. 2324 */ 2325 struct JDK1_1InitArgs args1_1; 2326 memset((void*)&args1_1, 0, sizeof(args1_1)); 2327 args1_1.version = JNI_VERSION_1_1; 2328 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 2329 if (args1_1.javaStackSize > 0) { 2330 threadStackSize = args1_1.javaStackSize; 2331 } 2332 } 2333 2334 { /* Create a new thread to create JVM and invoke main method */ 2335 JavaMainArgs args; 2336 int rslt; 2337 2338 args.argc = argc; 2339 args.argv = argv; 2340 args.mode = mode; 2341 args.what = what; 2342 args.ifn = *ifn; 2343 2344 rslt = CallJavaMainInNewThread(threadStackSize, (void*)&args); 2345 /* If the caller has deemed there is an error we 2346 * simply return that, otherwise we return the value of 2347 * the callee 2348 */ 2349 return (ret != 0) ? ret : rslt; 2350 } 2351 } 2352 2353 static void 2354 DumpState() 2355 { 2356 if (!JLI_IsTraceLauncher()) return ; 2357 printf("Launcher state:\n"); 2358 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex()); 2359 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 2360 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 2361 printf("\tprogram name:%s\n", GetProgramName()); 2362 printf("\tlauncher name:%s\n", GetLauncherName()); 2363 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 2364 printf("\tfullversion:%s\n", GetFullVersion()); 2365 } 2366 2367 /* 2368 * A utility procedure to always print to stderr 2369 */ 2370 JNIEXPORT void JNICALL 2371 JLI_ReportMessage(const char* fmt, ...) 2372 { 2373 va_list vl; 2374 va_start(vl, fmt); 2375 vfprintf(stderr, fmt, vl); 2376 fprintf(stderr, "\n"); 2377 va_end(vl); 2378 } 2379 2380 /* 2381 * A utility procedure to always print to stdout 2382 */ 2383 void 2384 JLI_ShowMessage(const char* fmt, ...) 2385 { 2386 va_list vl; 2387 va_start(vl, fmt); 2388 vfprintf(stdout, fmt, vl); 2389 fprintf(stdout, "\n"); 2390 va_end(vl); 2391 }