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 } 1359 1360 if (*pwhat == NULL && --argc >= 0) { 1361 *pwhat = *argv++; 1362 } 1363 1364 if (*pwhat == NULL) { 1365 /* LM_UNKNOWN okay for options that exit */ 1366 if (!listModules && !describeModule && !validateModules && !dumpSharedSpaces) { 1367 *pret = 1; 1368 printUsageKind = HELP_CONCISE; 1369 } 1370 } else if (mode == LM_UNKNOWN) { 1371 if (!_have_classpath) { 1372 SetClassPath("."); 1373 } 1374 /* If neither of -m, -jar, --source option is set, then the 1375 * launcher mode is LM_UNKNOWN. In such cases, we determine the 1376 * mode as LM_CLASS or LM_SOURCE per the input file. */ 1377 mode = IsSourceFile(arg) ? LM_SOURCE : LM_CLASS; 1378 } else if (mode == LM_CLASS && IsSourceFile(arg)) { 1379 /* override LM_CLASS mode if given a source file */ 1380 mode = LM_SOURCE; 1381 } 1382 1383 if (mode == LM_SOURCE) { 1384 // communicate the launcher mode to runtime 1385 AddOption("-Dsun.java.launcher.mode=source", NULL); 1386 AddOption("--add-modules=ALL-DEFAULT", NULL); 1387 *pwhat = SOURCE_LAUNCHER_MAIN_ENTRY; 1388 // adjust (argc, argv) so that the name of the source file 1389 // is included in the args passed to the source launcher 1390 // main entry class 1391 *pargc = argc + 1; 1392 *pargv = argv - 1; 1393 } else { 1394 if (argc >= 0) { 1395 *pargc = argc; 1396 *pargv = argv; 1397 } 1398 } 1399 1400 *pmode = mode; 1401 1402 if (!headless) { 1403 char *jar_path = NULL; 1404 if (mode == LM_JAR) { 1405 jar_path = *pwhat; 1406 } 1407 // Not in headless mode. We now set a couple of env variables that 1408 // will be used later by ShowSplashScreen(). 1409 SetupSplashScreenEnvVars(splash_file_path, jar_path); 1410 } 1411 1412 return JNI_TRUE; 1413 } 1414 1415 /* 1416 * Sets the relevant environment variables that are subsequently used by 1417 * the ShowSplashScreen() function. The splash_file_path and jar_path parameters 1418 * are used to determine which environment variables to set. 1419 * The splash_file_path is the value that was provided to the "-splash:" option 1420 * when launching java. It may be null, which implies the "-splash:" option wasn't used. 1421 * The jar_path is the value that was provided to the "-jar" option when launching java. 1422 * It too may be null, which implies the "-jar" option wasn't used. 1423 */ 1424 static void 1425 SetupSplashScreenEnvVars(const char *splash_file_path, char *jar_path) { 1426 // Command line specified "-splash:" takes priority over manifest one. 1427 if (splash_file_path) { 1428 // We set up the splash file name as a env variable which then gets 1429 // used when showing the splash screen in ShowSplashScreen(). 1430 1431 // create the string of the form _JAVA_SPLASH_FILE=<val> 1432 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=") 1433 + JLI_StrLen(splash_file_path) + 1); 1434 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1435 JLI_StrCat(splash_file_entry, splash_file_path); 1436 putenv(splash_file_entry); 1437 return; 1438 } 1439 if (!jar_path) { 1440 // no jar to look into for "SplashScreen-Image" manifest attribute 1441 return; 1442 } 1443 // parse the jar's manifest to find any "SplashScreen-Image" 1444 int res = 0; 1445 manifest_info info; 1446 if ((res = JLI_ParseManifest(jar_path, &info)) != 0) { 1447 JLI_FreeManifest(); // cleanup any manifest structure 1448 if (res == -1) { 1449 JLI_ReportErrorMessage(JAR_ERROR2, jar_path); 1450 } else { 1451 JLI_ReportErrorMessage(JAR_ERROR3, jar_path); 1452 } 1453 exit(1); 1454 } 1455 if (!info.splashscreen_image_file_name) { 1456 JLI_FreeManifest(); // cleanup the manifest structure 1457 // no "SplashScreen-Image" in jar's manifest 1458 return; 1459 } 1460 // The jar's manifest had a "Splashscreen-Image" specified. We set up the jar entry name 1461 // and the jar file name as env variables which then get used when showing the splash screen 1462 // in ShowSplashScreen(). 1463 1464 // create the string of the form _JAVA_SPLASH_FILE=<val> 1465 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=") 1466 + JLI_StrLen(info.splashscreen_image_file_name) + 1); 1467 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1468 JLI_StrCat(splash_file_entry, info.splashscreen_image_file_name); 1469 putenv(splash_file_entry); 1470 // create the string of the form _JAVA_SPLASH_JAR=<val> 1471 splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=") + JLI_StrLen(jar_path) + 1); 1472 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 1473 JLI_StrCat(splash_jar_entry, jar_path); 1474 putenv(splash_jar_entry); 1475 JLI_FreeManifest(); // cleanup the manifest structure 1476 } 1477 1478 /* 1479 * Initializes the Java Virtual Machine. Also frees options array when 1480 * finished. 1481 */ 1482 static jboolean 1483 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1484 { 1485 JavaVMInitArgs args; 1486 jint r; 1487 1488 memset(&args, 0, sizeof(args)); 1489 args.version = JNI_VERSION_1_2; 1490 args.nOptions = numOptions; 1491 args.options = options; 1492 args.ignoreUnrecognized = JNI_FALSE; 1493 1494 if (JLI_IsTraceLauncher()) { 1495 int i = 0; 1496 printf("JavaVM args:\n "); 1497 printf("version 0x%08lx, ", (long)args.version); 1498 printf("ignoreUnrecognized is %s, ", 1499 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1500 printf("nOptions is %ld\n", (long)args.nOptions); 1501 for (i = 0; i < numOptions; i++) 1502 printf(" option[%2d] = '%s'\n", 1503 i, args.options[i].optionString); 1504 } 1505 1506 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1507 JLI_MemFree(options); 1508 return r == JNI_OK; 1509 } 1510 1511 static jclass helperClass = NULL; 1512 1513 jclass 1514 GetLauncherHelperClass(JNIEnv *env) 1515 { 1516 if (helperClass == NULL) { 1517 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1518 "sun/launcher/LauncherHelper")); 1519 } 1520 return helperClass; 1521 } 1522 1523 static jmethodID makePlatformStringMID = NULL; 1524 /* 1525 * Returns a new Java string object for the specified platform string. 1526 */ 1527 static jstring 1528 NewPlatformString(JNIEnv *env, char *s) 1529 { 1530 int len = (int)JLI_StrLen(s); 1531 jbyteArray ary; 1532 jclass cls = GetLauncherHelperClass(env); 1533 NULL_CHECK0(cls); 1534 if (s == NULL) 1535 return 0; 1536 1537 ary = (*env)->NewByteArray(env, len); 1538 if (ary != 0) { 1539 jstring str = 0; 1540 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1541 if (!(*env)->ExceptionCheck(env)) { 1542 if (makePlatformStringMID == NULL) { 1543 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1544 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1545 } 1546 str = (*env)->CallStaticObjectMethod(env, cls, 1547 makePlatformStringMID, USE_STDERR, ary); 1548 CHECK_EXCEPTION_RETURN_VALUE(0); 1549 (*env)->DeleteLocalRef(env, ary); 1550 return str; 1551 } 1552 } 1553 return 0; 1554 } 1555 1556 /* 1557 * Returns a new array of Java string objects for the specified 1558 * array of platform strings. 1559 */ 1560 jobjectArray 1561 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1562 { 1563 jarray cls; 1564 jarray ary; 1565 int i; 1566 1567 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1568 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1569 CHECK_EXCEPTION_RETURN_VALUE(0); 1570 for (i = 0; i < strc; i++) { 1571 jstring str = NewPlatformString(env, *strv++); 1572 NULL_CHECK0(str); 1573 (*env)->SetObjectArrayElement(env, ary, i, str); 1574 (*env)->DeleteLocalRef(env, str); 1575 } 1576 return ary; 1577 } 1578 1579 /* 1580 * Calls LauncherHelper::checkAndLoadMain to verify that the main class 1581 * is present, it is ok to load the main class and then load the main class. 1582 * For more details refer to the java implementation. 1583 */ 1584 static jclass 1585 LoadMainClass(JNIEnv *env, int mode, char *name) 1586 { 1587 jmethodID mid; 1588 jstring str; 1589 jobject result; 1590 jlong start = 0, end = 0; 1591 jclass cls = GetLauncherHelperClass(env); 1592 NULL_CHECK0(cls); 1593 if (JLI_IsTraceLauncher()) { 1594 start = CurrentTimeMicros(); 1595 } 1596 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1597 "checkAndLoadMain", 1598 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1599 1600 NULL_CHECK0(str = NewPlatformString(env, name)); 1601 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1602 USE_STDERR, mode, str)); 1603 1604 if (JLI_IsTraceLauncher()) { 1605 end = CurrentTimeMicros(); 1606 printf("%ld micro seconds to load main class\n", (long)(end-start)); 1607 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1608 } 1609 1610 return (jclass)result; 1611 } 1612 1613 static jclass 1614 GetApplicationClass(JNIEnv *env) 1615 { 1616 jmethodID mid; 1617 jclass appClass; 1618 jclass cls = GetLauncherHelperClass(env); 1619 NULL_CHECK0(cls); 1620 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1621 "getApplicationClass", 1622 "()Ljava/lang/Class;")); 1623 1624 appClass = (*env)->CallStaticObjectMethod(env, cls, mid); 1625 CHECK_EXCEPTION_RETURN_VALUE(0); 1626 return appClass; 1627 } 1628 1629 static char* expandWildcardOnLongOpt(char* arg) { 1630 char *p, *value; 1631 size_t optLen, valueLen; 1632 p = JLI_StrChr(arg, '='); 1633 1634 if (p == NULL || p[1] == '\0') { 1635 JLI_ReportErrorMessage(ARG_ERROR1, arg); 1636 exit(1); 1637 } 1638 p++; 1639 value = (char *) JLI_WildcardExpandClasspath(p); 1640 if (p == value) { 1641 // no wildcard 1642 return arg; 1643 } 1644 1645 optLen = p - arg; 1646 valueLen = JLI_StrLen(value); 1647 p = JLI_MemAlloc(optLen + valueLen + 1); 1648 memcpy(p, arg, optLen); 1649 memcpy(p + optLen, value, valueLen); 1650 p[optLen + valueLen] = '\0'; 1651 return p; 1652 } 1653 1654 /* 1655 * For tools, convert command line args thus: 1656 * javac -cp foo:foo/"*" -J-ms32m ... 1657 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1658 * 1659 * Takes 4 parameters, and returns the populated arguments 1660 */ 1661 static void 1662 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1663 { 1664 int argc = *pargc; 1665 char **argv = *pargv; 1666 int nargc = argc + jargc; 1667 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1668 int i; 1669 1670 *pargc = nargc; 1671 *pargv = nargv; 1672 1673 /* Copy the VM arguments (i.e. prefixed with -J) */ 1674 for (i = 0; i < jargc; i++) { 1675 const char *arg = jargv[i]; 1676 if (arg[0] == '-' && arg[1] == 'J') { 1677 assert(arg[2] != '\0' && "Invalid JAVA_ARGS or EXTRA_JAVA_ARGS defined by build"); 1678 *nargv++ = JLI_StringDup(arg + 2); 1679 } 1680 } 1681 1682 for (i = 0; i < argc; i++) { 1683 char *arg = argv[i]; 1684 if (arg[0] == '-' && arg[1] == 'J') { 1685 if (arg[2] == '\0') { 1686 JLI_ReportErrorMessage(ARG_ERROR3); 1687 exit(1); 1688 } 1689 *nargv++ = arg + 2; 1690 } 1691 } 1692 1693 /* Copy the rest of the arguments */ 1694 for (i = 0; i < jargc ; i++) { 1695 const char *arg = jargv[i]; 1696 if (arg[0] != '-' || arg[1] != 'J') { 1697 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1698 } 1699 } 1700 for (i = 0; i < argc; i++) { 1701 char *arg = argv[i]; 1702 if (arg[0] == '-') { 1703 if (arg[1] == 'J') 1704 continue; 1705 if (IsWildCardEnabled()) { 1706 if (IsClassPathOption(arg) && i < argc - 1) { 1707 *nargv++ = arg; 1708 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1709 i++; 1710 continue; 1711 } 1712 if (JLI_StrCCmp(arg, "--class-path=") == 0) { 1713 *nargv++ = expandWildcardOnLongOpt(arg); 1714 continue; 1715 } 1716 } 1717 } 1718 *nargv++ = arg; 1719 } 1720 *nargv = 0; 1721 } 1722 1723 /* 1724 * For our tools, we try to add 3 VM options: 1725 * -Denv.class.path=<envcp> 1726 * -Dapplication.home=<apphome> 1727 * -Djava.class.path=<appcp> 1728 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1729 * tells javac where to find binary classes through this environment 1730 * variable. Notice that users will be able to compile against our 1731 * tools classes (sun.tools.javac.Main) only if they explicitly add 1732 * tools.jar to CLASSPATH. 1733 * <apphome> is the directory where the application is installed. 1734 * <appcp> is the classpath to where our apps' classfiles are. 1735 */ 1736 static jboolean 1737 AddApplicationOptions(int cpathc, const char **cpathv) 1738 { 1739 char *envcp, *appcp, *apphome; 1740 char home[MAXPATHLEN]; /* application home */ 1741 char separator[] = { PATH_SEPARATOR, '\0' }; 1742 int size, i; 1743 1744 { 1745 const char *s = getenv("CLASSPATH"); 1746 if (s) { 1747 s = (char *) JLI_WildcardExpandClasspath(s); 1748 /* 40 for -Denv.class.path= */ 1749 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1750 size_t envcpSize = JLI_StrLen(s) + 40; 1751 envcp = (char *)JLI_MemAlloc(envcpSize); 1752 snprintf(envcp, envcpSize, "-Denv.class.path=%s", s); 1753 AddOption(envcp, NULL); 1754 } 1755 } 1756 } 1757 1758 if (!GetApplicationHome(home, sizeof(home))) { 1759 JLI_ReportErrorMessage(CFG_ERROR5); 1760 return JNI_FALSE; 1761 } 1762 1763 /* 40 for '-Dapplication.home=' */ 1764 size_t apphomeSize = JLI_StrLen(home) + 40; 1765 apphome = (char *)JLI_MemAlloc(apphomeSize); 1766 snprintf(apphome, apphomeSize, "-Dapplication.home=%s", home); 1767 AddOption(apphome, NULL); 1768 1769 /* How big is the application's classpath? */ 1770 if (cpathc > 0) { 1771 size = 40; /* 40: "-Djava.class.path=" */ 1772 for (i = 0; i < cpathc; i++) { 1773 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1774 } 1775 appcp = (char *)JLI_MemAlloc(size + 1); 1776 JLI_StrCpy(appcp, "-Djava.class.path="); 1777 for (i = 0; i < cpathc; i++) { 1778 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1779 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1780 JLI_StrCat(appcp, separator); /* ; */ 1781 } 1782 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1783 AddOption(appcp, NULL); 1784 } 1785 return JNI_TRUE; 1786 } 1787 1788 /* 1789 * inject the -Dsun.java.command pseudo property into the args structure 1790 * this pseudo property is used in the HotSpot VM to expose the 1791 * Java class name and arguments to the main method to the VM. The 1792 * HotSpot VM uses this pseudo property to store the Java class name 1793 * (or jar file name) and the arguments to the class's main method 1794 * to the instrumentation memory region. The sun.java.command pseudo 1795 * property is not exported by HotSpot to the Java layer. 1796 */ 1797 void 1798 SetJavaCommandLineProp(char *what, int argc, char **argv) 1799 { 1800 1801 int i = 0; 1802 size_t len = 0; 1803 char* javaCommand = NULL; 1804 char* dashDstr = "-Dsun.java.command="; 1805 1806 if (what == NULL) { 1807 /* unexpected, one of these should be set. just return without 1808 * setting the property 1809 */ 1810 return; 1811 } 1812 1813 /* determine the amount of memory to allocate assuming 1814 * the individual components will be space separated 1815 */ 1816 len = JLI_StrLen(what); 1817 for (i = 0; i < argc; i++) { 1818 len += JLI_StrLen(argv[i]) + 1; 1819 } 1820 1821 /* allocate the memory */ 1822 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1823 1824 /* build the -D string */ 1825 *javaCommand = '\0'; 1826 JLI_StrCat(javaCommand, dashDstr); 1827 JLI_StrCat(javaCommand, what); 1828 1829 for (i = 0; i < argc; i++) { 1830 /* the components of the string are space separated. In 1831 * the case of embedded white space, the relationship of 1832 * the white space separated components to their true 1833 * positional arguments will be ambiguous. This issue may 1834 * be addressed in a future release. 1835 */ 1836 JLI_StrCat(javaCommand, " "); 1837 JLI_StrCat(javaCommand, argv[i]); 1838 } 1839 1840 AddOption(javaCommand, NULL); 1841 } 1842 1843 /* 1844 * JVM would like to know if it's created by a standard Sun launcher, or by 1845 * user native application, the following property indicates the former. 1846 */ 1847 static void SetJavaLauncherProp() { 1848 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1849 } 1850 1851 /* 1852 * Prints the version information from the java.version and other properties. 1853 */ 1854 static void 1855 PrintJavaVersion(JNIEnv *env) 1856 { 1857 jclass ver; 1858 jmethodID print; 1859 1860 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps")); 1861 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1862 ver, 1863 "print", 1864 "(Z)V" 1865 ) 1866 ); 1867 1868 (*env)->CallStaticVoidMethod(env, ver, print, printTo); 1869 } 1870 1871 /* 1872 * Prints all the Java settings, see the java implementation for more details. 1873 */ 1874 static void 1875 ShowSettings(JNIEnv *env, char *optString) 1876 { 1877 jmethodID showSettingsID; 1878 jstring joptString; 1879 jclass cls = GetLauncherHelperClass(env); 1880 NULL_CHECK(cls); 1881 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1882 "showSettings", "(ZLjava/lang/String;JJJ)V")); 1883 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1884 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1885 USE_STDERR, 1886 joptString, 1887 (jlong)initialHeapSize, 1888 (jlong)maxHeapSize, 1889 (jlong)threadStackSize); 1890 } 1891 1892 /** 1893 * Show resolved modules 1894 */ 1895 static void 1896 ShowResolvedModules(JNIEnv *env) 1897 { 1898 jmethodID showResolvedModulesID; 1899 jclass cls = GetLauncherHelperClass(env); 1900 NULL_CHECK(cls); 1901 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls, 1902 "showResolvedModules", "()V")); 1903 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID); 1904 } 1905 1906 /** 1907 * List observable modules 1908 */ 1909 static void 1910 ListModules(JNIEnv *env) 1911 { 1912 jmethodID listModulesID; 1913 jclass cls = GetLauncherHelperClass(env); 1914 NULL_CHECK(cls); 1915 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls, 1916 "listModules", "()V")); 1917 (*env)->CallStaticVoidMethod(env, cls, listModulesID); 1918 } 1919 1920 /** 1921 * Describe a module 1922 */ 1923 static void 1924 DescribeModule(JNIEnv *env, char *optString) 1925 { 1926 jmethodID describeModuleID; 1927 jstring joptString = NULL; 1928 jclass cls = GetLauncherHelperClass(env); 1929 NULL_CHECK(cls); 1930 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls, 1931 "describeModule", "(Ljava/lang/String;)V")); 1932 NULL_CHECK(joptString = NewPlatformString(env, optString)); 1933 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString); 1934 } 1935 1936 /* 1937 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1938 */ 1939 static void 1940 PrintUsage(JNIEnv* env, enum HelpKind printUsageKind) 1941 { 1942 jmethodID initHelp, vmSelect, vmSynonym; 1943 jmethodID printHelp, printConciseUsageMessage, printXUsageMessage; 1944 jstring jprogname, vm1, vm2; 1945 int i; 1946 jclass cls = GetLauncherHelperClass(env); 1947 NULL_CHECK(cls); 1948 switch (printUsageKind) { 1949 case HELP_NONE: break; 1950 case HELP_CONCISE: 1951 NULL_CHECK(printConciseUsageMessage = (*env)->GetStaticMethodID(env, cls, 1952 "printConciseUsageMessage", "(Z)V")); 1953 (*env)->CallStaticVoidMethod(env, cls, printConciseUsageMessage, printTo); 1954 break; 1955 case HELP_EXTRA: 1956 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1957 "printXUsageMessage", "(Z)V")); 1958 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo); 1959 break; 1960 case HELP_FULL: 1961 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1962 "initHelpMessage", "(Ljava/lang/String;)V")); 1963 1964 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1965 "(Ljava/lang/String;Ljava/lang/String;)V")); 1966 1967 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1968 "appendVmSynonymMessage", 1969 "(Ljava/lang/String;Ljava/lang/String;)V")); 1970 1971 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1972 "printHelpMessage", "(Z)V")); 1973 1974 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1975 1976 /* Initialize the usage message with the usual preamble */ 1977 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1978 CHECK_EXCEPTION_RETURN(); 1979 1980 1981 /* Assemble the other variant part of the usage */ 1982 for (i=1; i<knownVMsCount; i++) { 1983 if (knownVMs[i].flag == VM_KNOWN) { 1984 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1985 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 1986 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1987 CHECK_EXCEPTION_RETURN(); 1988 } 1989 } 1990 for (i=1; i<knownVMsCount; i++) { 1991 if (knownVMs[i].flag == VM_ALIASED_TO) { 1992 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1993 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 1994 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1995 CHECK_EXCEPTION_RETURN(); 1996 } 1997 } 1998 1999 /* Complete the usage message and print to stderr*/ 2000 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo); 2001 break; 2002 } 2003 return; 2004 } 2005 2006 /* 2007 * Read the jvm.cfg file and fill the knownJVMs[] array. 2008 * 2009 * The functionality of the jvm.cfg file is subject to change without 2010 * notice and the mechanism will be removed in the future. 2011 * 2012 * The lexical structure of the jvm.cfg file is as follows: 2013 * 2014 * jvmcfg := { vmLine } 2015 * vmLine := knownLine 2016 * | aliasLine 2017 * | warnLine 2018 * | ignoreLine 2019 * | errorLine 2020 * | predicateLine 2021 * | commentLine 2022 * knownLine := flag "KNOWN" EOL 2023 * warnLine := flag "WARN" EOL 2024 * ignoreLine := flag "IGNORE" EOL 2025 * errorLine := flag "ERROR" EOL 2026 * aliasLine := flag "ALIASED_TO" flag EOL 2027 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 2028 * commentLine := "#" text EOL 2029 * flag := "-" identifier 2030 * 2031 * The semantics are that when someone specifies a flag on the command line: 2032 * - if the flag appears on a knownLine, then the identifier is used as 2033 * the name of the directory holding the JVM library (the name of the JVM). 2034 * - if the flag appears as the first flag on an aliasLine, the identifier 2035 * of the second flag is used as the name of the JVM. 2036 * - if the flag appears on a warnLine, the identifier is used as the 2037 * name of the JVM, but a warning is generated. 2038 * - if the flag appears on an ignoreLine, the identifier is recognized as the 2039 * name of a JVM, but the identifier is ignored and the default vm used 2040 * - if the flag appears on an errorLine, an error is generated. 2041 * - if the flag appears as the first flag on a predicateLine, and 2042 * the machine on which you are running passes the predicate indicated, 2043 * then the identifier of the second flag is used as the name of the JVM, 2044 * otherwise the identifier of the first flag is used as the name of the JVM. 2045 * If no flag is given on the command line, the first vmLine of the jvm.cfg 2046 * file determines the name of the JVM. 2047 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 2048 * since they only make sense if someone hasn't specified the name of the 2049 * JVM on the command line. 2050 * 2051 * The intent of the jvm.cfg file is to allow several JVM libraries to 2052 * be installed in different subdirectories of a single JDK installation, 2053 * for space-savings and convenience in testing. 2054 * The intent is explicitly not to provide a full aliasing or predicate 2055 * mechanism. 2056 */ 2057 jint 2058 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 2059 { 2060 FILE *jvmCfg; 2061 char line[MAXPATHLEN+20]; 2062 int cnt = 0; 2063 int lineno = 0; 2064 jlong start = 0, end = 0; 2065 int vmType; 2066 char *tmpPtr; 2067 char *altVMName = NULL; 2068 static char *whiteSpace = " \t"; 2069 if (JLI_IsTraceLauncher()) { 2070 start = CurrentTimeMicros(); 2071 } 2072 2073 jvmCfg = fopen(jvmCfgName, "r"); 2074 if (jvmCfg == NULL) { 2075 if (!speculative) { 2076 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 2077 exit(1); 2078 } else { 2079 return -1; 2080 } 2081 } 2082 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 2083 vmType = VM_UNKNOWN; 2084 lineno++; 2085 if (line[0] == '#') 2086 continue; 2087 if (line[0] != '-') { 2088 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 2089 } 2090 if (cnt >= knownVMsLimit) { 2091 GrowKnownVMs(cnt); 2092 } 2093 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 2094 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 2095 if (*tmpPtr == 0) { 2096 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2097 } else { 2098 /* Null-terminate this string for JLI_StringDup below */ 2099 *tmpPtr++ = 0; 2100 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2101 if (*tmpPtr == 0) { 2102 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2103 } else { 2104 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 2105 vmType = VM_KNOWN; 2106 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 2107 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2108 if (*tmpPtr != 0) { 2109 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2110 } 2111 if (*tmpPtr == 0) { 2112 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2113 } else { 2114 /* Null terminate altVMName */ 2115 altVMName = tmpPtr; 2116 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2117 *tmpPtr = 0; 2118 vmType = VM_ALIASED_TO; 2119 } 2120 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 2121 vmType = VM_WARN; 2122 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 2123 vmType = VM_IGNORE; 2124 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 2125 vmType = VM_ERROR; 2126 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 2127 /* ignored */ 2128 } else { 2129 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 2130 vmType = VM_KNOWN; 2131 } 2132 } 2133 } 2134 2135 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 2136 if (vmType != VM_UNKNOWN) { 2137 knownVMs[cnt].name = JLI_StringDup(line); 2138 knownVMs[cnt].flag = vmType; 2139 switch (vmType) { 2140 default: 2141 break; 2142 case VM_ALIASED_TO: 2143 knownVMs[cnt].alias = JLI_StringDup(altVMName); 2144 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 2145 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 2146 break; 2147 } 2148 cnt++; 2149 } 2150 } 2151 fclose(jvmCfg); 2152 knownVMsCount = cnt; 2153 2154 if (JLI_IsTraceLauncher()) { 2155 end = CurrentTimeMicros(); 2156 printf("%ld micro seconds to parse jvm.cfg\n", (long)(end-start)); 2157 } 2158 2159 return cnt; 2160 } 2161 2162 2163 static void 2164 GrowKnownVMs(int minimum) 2165 { 2166 struct vmdesc* newKnownVMs; 2167 int newMax; 2168 2169 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 2170 if (newMax <= minimum) { 2171 newMax = minimum; 2172 } 2173 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 2174 if (knownVMs != NULL) { 2175 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 2176 } 2177 JLI_MemFree(knownVMs); 2178 knownVMs = newKnownVMs; 2179 knownVMsLimit = newMax; 2180 } 2181 2182 2183 /* Returns index of VM or -1 if not found */ 2184 static int 2185 KnownVMIndex(const char* name) 2186 { 2187 int i; 2188 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 2189 for (i = 0; i < knownVMsCount; i++) { 2190 if (!JLI_StrCmp(name, knownVMs[i].name)) { 2191 return i; 2192 } 2193 } 2194 return -1; 2195 } 2196 2197 static void 2198 FreeKnownVMs() 2199 { 2200 int i; 2201 for (i = 0; i < knownVMsCount; i++) { 2202 JLI_MemFree(knownVMs[i].name); 2203 knownVMs[i].name = NULL; 2204 } 2205 JLI_MemFree(knownVMs); 2206 } 2207 2208 /* 2209 * Displays the splash screen according to the jar file name 2210 * and image file names stored in environment variables 2211 */ 2212 void 2213 ShowSplashScreen() 2214 { 2215 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 2216 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 2217 int data_size; 2218 void *image_data = NULL; 2219 float scale_factor = 1; 2220 char *scaled_splash_name = NULL; 2221 jboolean isImageScaled = JNI_FALSE; 2222 size_t maxScaledImgNameLength = 0; 2223 if (file_name == NULL){ 2224 return; 2225 } 2226 2227 if (!DoSplashInit()) { 2228 goto exit; 2229 } 2230 2231 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name); 2232 2233 scaled_splash_name = JLI_MemAlloc( 2234 maxScaledImgNameLength * sizeof(char)); 2235 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name, 2236 &scale_factor, 2237 scaled_splash_name, maxScaledImgNameLength); 2238 if (jar_name) { 2239 2240 if (isImageScaled) { 2241 image_data = JLI_JarUnpackFile( 2242 jar_name, scaled_splash_name, &data_size); 2243 } 2244 2245 if (!image_data) { 2246 scale_factor = 1; 2247 image_data = JLI_JarUnpackFile( 2248 jar_name, file_name, &data_size); 2249 } 2250 if (image_data) { 2251 DoSplashSetScaleFactor(scale_factor); 2252 DoSplashLoadMemory(image_data, data_size); 2253 JLI_MemFree(image_data); 2254 } else { 2255 DoSplashClose(); 2256 } 2257 } else { 2258 if (isImageScaled) { 2259 DoSplashSetScaleFactor(scale_factor); 2260 DoSplashLoadFile(scaled_splash_name); 2261 } else { 2262 DoSplashLoadFile(file_name); 2263 } 2264 } 2265 JLI_MemFree(scaled_splash_name); 2266 2267 DoSplashSetFileJarName(file_name, jar_name); 2268 2269 exit: 2270 /* 2271 * Done with all command line processing and potential re-execs so 2272 * clean up the environment. 2273 */ 2274 (void)UnsetEnv(MAIN_CLASS_ENV_ENTRY); 2275 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 2276 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 2277 2278 JLI_MemFree(splash_jar_entry); 2279 JLI_MemFree(splash_file_entry); 2280 2281 } 2282 2283 static const char* GetFullVersion() 2284 { 2285 return _fVersion; 2286 } 2287 2288 static const char* GetProgramName() 2289 { 2290 return _program_name; 2291 } 2292 2293 static const char* GetLauncherName() 2294 { 2295 return _launcher_name; 2296 } 2297 2298 static jboolean IsJavaArgs() 2299 { 2300 return _is_java_args; 2301 } 2302 2303 static jboolean 2304 IsWildCardEnabled() 2305 { 2306 return _wc_enabled; 2307 } 2308 2309 int 2310 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 2311 int argc, char **argv, 2312 int mode, char *what, int ret) 2313 { 2314 if (threadStackSize == 0) { 2315 /* 2316 * If the user hasn't specified a non-zero stack size ask the JVM for its default. 2317 * A returned 0 means 'use the system default' for a platform, e.g., Windows. 2318 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 2319 * return its default stack size through the init args structure. 2320 */ 2321 struct JDK1_1InitArgs args1_1; 2322 memset((void*)&args1_1, 0, sizeof(args1_1)); 2323 args1_1.version = JNI_VERSION_1_1; 2324 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 2325 if (args1_1.javaStackSize > 0) { 2326 threadStackSize = args1_1.javaStackSize; 2327 } 2328 } 2329 2330 { /* Create a new thread to create JVM and invoke main method */ 2331 JavaMainArgs args; 2332 int rslt; 2333 2334 args.argc = argc; 2335 args.argv = argv; 2336 args.mode = mode; 2337 args.what = what; 2338 args.ifn = *ifn; 2339 2340 rslt = CallJavaMainInNewThread(threadStackSize, (void*)&args); 2341 /* If the caller has deemed there is an error we 2342 * simply return that, otherwise we return the value of 2343 * the callee 2344 */ 2345 return (ret != 0) ? ret : rslt; 2346 } 2347 } 2348 2349 static void 2350 DumpState() 2351 { 2352 if (!JLI_IsTraceLauncher()) return ; 2353 printf("Launcher state:\n"); 2354 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex()); 2355 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 2356 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 2357 printf("\tprogram name:%s\n", GetProgramName()); 2358 printf("\tlauncher name:%s\n", GetLauncherName()); 2359 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 2360 printf("\tfullversion:%s\n", GetFullVersion()); 2361 } 2362 2363 /* 2364 * A utility procedure to always print to stderr 2365 */ 2366 JNIEXPORT void JNICALL 2367 JLI_ReportMessage(const char* fmt, ...) 2368 { 2369 va_list vl; 2370 va_start(vl, fmt); 2371 vfprintf(stderr, fmt, vl); 2372 fprintf(stderr, "\n"); 2373 va_end(vl); 2374 } 2375 2376 /* 2377 * A utility procedure to always print to stdout 2378 */ 2379 void 2380 JLI_ShowMessage(const char* fmt, ...) 2381 { 2382 va_list vl; 2383 va_start(vl, fmt); 2384 vfprintf(stdout, fmt, vl); 2385 fprintf(stdout, "\n"); 2386 va_end(vl); 2387 }