1 /* 2 * Copyright (c) 1995, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* 27 * Shared source for 'java' command line tool. 28 * 29 * If JAVA_ARGS is defined, then acts as a launcher for applications. For 30 * instance, the JDK command line tools such as javac and javadoc (see 31 * makefiles for more details) are built with this program. Any arguments 32 * prefixed with '-J' will be passed directly to the 'java' command. 33 */ 34 35 /* 36 * One job of the launcher is to remove command line options which the 37 * vm does not understand and will not process. These options include 38 * options which select which style of vm is run (e.g. -client and 39 * -server) as well as options which select the data model to use. 40 * Additionally, for tools which invoke an underlying vm "-J-foo" 41 * options are turned into "-foo" options to the vm. This option 42 * filtering is handled in a number of places in the launcher, some of 43 * it in machine-dependent code. In this file, the function 44 * CheckJvmType removes vm style options and TranslateApplicationArgs 45 * removes "-J" prefixes. The CreateExecutionEnvironment function processes 46 * and removes -d<n> options. On unix, there is a possibility that the running 47 * data model may not match to the desired data model, in this case an exec is 48 * required to start the desired model. If the data models match, then 49 * ParseArguments will remove the -d<n> flags. If the data models do not match 50 * the CreateExecutionEnviroment will remove the -d<n> flags. 51 */ 52 53 54 #include "java.h" 55 #include "jni.h" 56 57 /* 58 * A NOTE TO DEVELOPERS: For performance reasons it is important that 59 * the program image remain relatively small until after SelectVersion 60 * CreateExecutionEnvironment have finished their possibly recursive 61 * processing. Watch everything, but resist all temptations to use Java 62 * interfaces. 63 */ 64 65 #define USE_STDERR JNI_TRUE /* we usually print to stderr */ 66 #define USE_STDOUT JNI_FALSE 67 68 static jboolean printVersion = JNI_FALSE; /* print and exit */ 69 static jboolean showVersion = JNI_FALSE; /* print but continue */ 70 static jboolean printUsage = JNI_FALSE; /* print and exit*/ 71 static jboolean printTo = USE_STDERR; /* where to print version/usage */ 72 static jboolean printXUsage = JNI_FALSE; /* print and exit*/ 73 static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */ 74 static char *showSettings = NULL; /* print but continue */ 75 static jboolean showResolvedModules = JNI_FALSE; 76 static jboolean listModules = JNI_FALSE; 77 static char *describeModule = NULL; 78 static jboolean validateModules = JNI_FALSE; 79 80 static const char *_program_name; 81 static const char *_launcher_name; 82 static jboolean _is_java_args = JNI_FALSE; 83 static jboolean _have_classpath = JNI_FALSE; 84 static const char *_fVersion; 85 static jboolean _wc_enabled = JNI_FALSE; 86 87 /* 88 * Entries for splash screen environment variables. 89 * putenv is performed in SelectVersion. We need 90 * them in memory until UnsetEnv, so they are made static 91 * global instead of auto local. 92 */ 93 static char* splash_file_entry = NULL; 94 static char* splash_jar_entry = NULL; 95 96 /* 97 * List of VM options to be specified when the VM is created. 98 */ 99 static JavaVMOption *options; 100 static int numOptions, maxOptions; 101 102 /* 103 * Prototypes for functions internal to launcher. 104 */ 105 static void SetClassPath(const char *s); 106 static void SetMainModule(const char *s); 107 static void SelectVersion(int argc, char **argv, char **main_class); 108 static void SetJvmEnvironment(int argc, char **argv); 109 static jboolean ParseArguments(int *pargc, char ***pargv, 110 int *pmode, char **pwhat, 111 int *pret, const char *jrepath); 112 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 113 InvocationFunctions *ifn); 114 static jstring NewPlatformString(JNIEnv *env, char *s); 115 static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 116 static jclass GetApplicationClass(JNIEnv *env); 117 118 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 119 static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 120 static void SetApplicationClassPath(const char**); 121 122 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF); 123 static void PrintUsage(JNIEnv* env, jboolean doXUsage); 124 static void ShowSettings(JNIEnv* env, char *optString); 125 static void ShowResolvedModules(JNIEnv* env); 126 static void ListModules(JNIEnv* env); 127 static void DescribeModule(JNIEnv* env, char* optString); 128 static jboolean ValidateModules(JNIEnv* env); 129 130 static void SetPaths(int argc, char **argv); 131 132 static void DumpState(); 133 134 enum OptionKind { 135 LAUNCHER_OPTION = 0, 136 LAUNCHER_OPTION_WITH_ARGUMENT, 137 LAUNCHER_MAIN_OPTION, 138 VM_LONG_OPTION, 139 VM_LONG_OPTION_WITH_ARGUMENT, 140 VM_OPTION 141 }; 142 143 static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue); 144 static jboolean IsOptionWithArgument(int argc, char **argv); 145 146 /* Maximum supported entries from jvm.cfg. */ 147 #define INIT_MAX_KNOWN_VMS 10 148 149 /* Values for vmdesc.flag */ 150 enum vmdesc_flag { 151 VM_UNKNOWN = -1, 152 VM_KNOWN, 153 VM_ALIASED_TO, 154 VM_WARN, 155 VM_ERROR, 156 VM_IF_SERVER_CLASS, 157 VM_IGNORE 158 }; 159 160 struct vmdesc { 161 char *name; 162 int flag; 163 char *alias; 164 char *server_class; 165 }; 166 static struct vmdesc *knownVMs = NULL; 167 static int knownVMsCount = 0; 168 static int knownVMsLimit = 0; 169 170 static void GrowKnownVMs(int minimum); 171 static int KnownVMIndex(const char* name); 172 static void FreeKnownVMs(); 173 static jboolean IsWildCardEnabled(); 174 175 176 #define SOURCE_LAUNCHER_MAIN_ENTRY "jdk.compiler/com.sun.tools.javac.launcher.Main" 177 178 /* 179 * This reports error. VM will not be created and no usage is printed. 180 */ 181 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \ 182 do { \ 183 if (!AC_ok) { \ 184 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 185 printUsage = JNI_FALSE; \ 186 *pret = 1; \ 187 return JNI_FALSE; \ 188 } \ 189 } while (JNI_FALSE) 190 191 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \ 192 do { \ 193 if (AC_arg_count < 1) { \ 194 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 195 printUsage = JNI_TRUE; \ 196 *pret = 1; \ 197 return JNI_TRUE; \ 198 } \ 199 } while (JNI_FALSE) 200 201 /* 202 * Running Java code in primordial thread caused many problems. We will 203 * create a new thread to invoke JVM. See 6316197 for more information. 204 */ 205 static jlong threadStackSize = 0; /* stack size of the new thread */ 206 static jlong maxHeapSize = 0; /* max heap size */ 207 static jlong initialHeapSize = 0; /* initial heap size */ 208 209 /* 210 * A minimum initial-thread stack size suitable for most platforms. 211 * This is the minimum amount of stack needed to load the JVM such 212 * that it can reject a too small -Xss value. If this is too small 213 * JVM initialization would cause a StackOverflowError. 214 */ 215 #ifndef STACK_SIZE_MINIMUM 216 #define STACK_SIZE_MINIMUM (64 * KB) 217 #endif 218 219 /* 220 * Entry point. 221 */ 222 JNIEXPORT int JNICALL 223 JLI_Launch(int argc, char ** argv, /* main argc, argv */ 224 int jargc, const char** jargv, /* java args */ 225 int appclassc, const char** appclassv, /* app classpath */ 226 const char* fullversion, /* full version defined */ 227 const char* dotversion, /* UNUSED dot version defined */ 228 const char* pname, /* program name */ 229 const char* lname, /* launcher name */ 230 jboolean javaargs, /* JAVA_ARGS */ 231 jboolean cpwildcard, /* classpath wildcard*/ 232 jboolean javaw, /* windows-only javaw */ 233 jint ergo /* unused */ 234 ) 235 { 236 int mode = LM_UNKNOWN; 237 char *what = NULL; 238 char *main_class = NULL; 239 int ret; 240 InvocationFunctions ifn; 241 jlong start, end; 242 char jvmpath[MAXPATHLEN]; 243 char jrepath[MAXPATHLEN]; 244 char jvmcfg[MAXPATHLEN]; 245 246 _fVersion = fullversion; 247 _launcher_name = lname; 248 _program_name = pname; 249 _is_java_args = javaargs; 250 _wc_enabled = cpwildcard; 251 252 InitLauncher(javaw); 253 DumpState(); 254 if (JLI_IsTraceLauncher()) { 255 int i; 256 printf("Java args:\n"); 257 for (i = 0; i < jargc ; i++) { 258 printf("jargv[%d] = %s\n", i, jargv[i]); 259 } 260 printf("Command line args:\n"); 261 for (i = 0; i < argc ; i++) { 262 printf("argv[%d] = %s\n", i, argv[i]); 263 } 264 AddOption("-Dsun.java.launcher.diag=true", NULL); 265 } 266 267 /* 268 * SelectVersion() has several responsibilities: 269 * 270 * 1) Disallow specification of another JRE. With 1.9, another 271 * version of the JRE cannot be invoked. 272 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since 273 * all mJRE directives have been stripped from the request but 274 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been 275 * invoked from the command line. 276 */ 277 SelectVersion(argc, argv, &main_class); 278 279 CreateExecutionEnvironment(&argc, &argv, 280 jrepath, sizeof(jrepath), 281 jvmpath, sizeof(jvmpath), 282 jvmcfg, sizeof(jvmcfg)); 283 284 if (!IsJavaArgs()) { 285 SetJvmEnvironment(argc,argv); 286 } 287 288 ifn.CreateJavaVM = 0; 289 ifn.GetDefaultJavaVMInitArgs = 0; 290 291 if (JLI_IsTraceLauncher()) { 292 start = CounterGet(); 293 } 294 295 if (!LoadJavaVM(jvmpath, &ifn)) { 296 return(6); 297 } 298 299 if (JLI_IsTraceLauncher()) { 300 end = CounterGet(); 301 } 302 303 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", 304 (long)(jint)Counter2Micros(end-start)); 305 306 ++argv; 307 --argc; 308 309 if (IsJavaArgs()) { 310 /* Preprocess wrapper arguments */ 311 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 312 if (!AddApplicationOptions(appclassc, appclassv)) { 313 return(1); 314 } 315 } else { 316 /* Set default CLASSPATH */ 317 char* cpath = getenv("CLASSPATH"); 318 if (cpath != NULL) { 319 SetClassPath(cpath); 320 } 321 } 322 323 /* Parse command line options; if the return value of 324 * ParseArguments is false, the program should exit. 325 */ 326 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) { 327 return(ret); 328 } 329 330 /* Override class path if -jar flag was specified */ 331 if (mode == LM_JAR) { 332 SetClassPath(what); /* Override class path */ 333 } 334 335 /* set the -Dsun.java.command pseudo property */ 336 SetJavaCommandLineProp(what, argc, argv); 337 338 /* Set the -Dsun.java.launcher pseudo property */ 339 SetJavaLauncherProp(); 340 341 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); 342 } 343 /* 344 * Always detach the main thread so that it appears to have ended when 345 * the application's main method exits. This will invoke the 346 * uncaught exception handler machinery if main threw an 347 * exception. An uncaught exception handler cannot change the 348 * launcher's return code except by calling System.exit. 349 * 350 * Wait for all non-daemon threads to end, then destroy the VM. 351 * This will actually create a trivial new Java waiter thread 352 * named "DestroyJavaVM", but this will be seen as a different 353 * thread from the one that executed main, even though they are 354 * the same C thread. This allows mainThread.join() and 355 * mainThread.isAlive() to work as expected. 356 */ 357 #define LEAVE() \ 358 do { \ 359 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \ 360 JLI_ReportErrorMessage(JVM_ERROR2); \ 361 ret = 1; \ 362 } \ 363 if (JNI_TRUE) { \ 364 (*vm)->DestroyJavaVM(vm); \ 365 return ret; \ 366 } \ 367 } while (JNI_FALSE) 368 369 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \ 370 do { \ 371 if ((*env)->ExceptionOccurred(env)) { \ 372 JLI_ReportExceptionDescription(env); \ 373 LEAVE(); \ 374 } \ 375 if ((CENL_exception) == NULL) { \ 376 JLI_ReportErrorMessage(JNI_ERROR); \ 377 LEAVE(); \ 378 } \ 379 } while (JNI_FALSE) 380 381 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \ 382 do { \ 383 if ((*env)->ExceptionOccurred(env)) { \ 384 JLI_ReportExceptionDescription(env); \ 385 ret = (CEL_return_value); \ 386 LEAVE(); \ 387 } \ 388 } while (JNI_FALSE) 389 390 391 int 392 JavaMain(void* _args) 393 { 394 JavaMainArgs *args = (JavaMainArgs *)_args; 395 int argc = args->argc; 396 char **argv = args->argv; 397 int mode = args->mode; 398 char *what = args->what; 399 InvocationFunctions ifn = args->ifn; 400 401 JavaVM *vm = 0; 402 JNIEnv *env = 0; 403 jclass mainClass = NULL; 404 jclass appClass = NULL; // actual application class being launched 405 jmethodID mainID; 406 jobjectArray mainArgs; 407 int ret = 0; 408 jlong start, end; 409 410 RegisterThread(); 411 412 /* Initialize the virtual machine */ 413 start = CounterGet(); 414 if (!InitializeJVM(&vm, &env, &ifn)) { 415 JLI_ReportErrorMessage(JVM_ERROR1); 416 exit(1); 417 } 418 419 if (showSettings != NULL) { 420 ShowSettings(env, showSettings); 421 CHECK_EXCEPTION_LEAVE(1); 422 } 423 424 // show resolved modules and continue 425 if (showResolvedModules) { 426 ShowResolvedModules(env); 427 CHECK_EXCEPTION_LEAVE(1); 428 } 429 430 // list observable modules, then exit 431 if (listModules) { 432 ListModules(env); 433 CHECK_EXCEPTION_LEAVE(1); 434 LEAVE(); 435 } 436 437 // describe a module, then exit 438 if (describeModule != NULL) { 439 DescribeModule(env, describeModule); 440 CHECK_EXCEPTION_LEAVE(1); 441 LEAVE(); 442 } 443 444 if (printVersion || showVersion) { 445 PrintJavaVersion(env, showVersion); 446 CHECK_EXCEPTION_LEAVE(0); 447 if (printVersion) { 448 LEAVE(); 449 } 450 } 451 452 // modules have been validated at startup so exit 453 if (validateModules) { 454 LEAVE(); 455 } 456 457 /* If the user specified neither a class name nor a JAR file */ 458 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 459 PrintUsage(env, printXUsage); 460 CHECK_EXCEPTION_LEAVE(1); 461 LEAVE(); 462 } 463 464 FreeKnownVMs(); /* after last possible PrintUsage */ 465 466 if (JLI_IsTraceLauncher()) { 467 end = CounterGet(); 468 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 469 (long)(jint)Counter2Micros(end-start)); 470 } 471 472 /* At this stage, argc/argv have the application's arguments */ 473 if (JLI_IsTraceLauncher()){ 474 int i; 475 printf("%s is '%s'\n", launchModeNames[mode], what); 476 printf("App's argc is %d\n", argc); 477 for (i=0; i < argc; i++) { 478 printf(" argv[%2d] = '%s'\n", i, argv[i]); 479 } 480 } 481 482 ret = 1; 483 484 /* 485 * Get the application's main class. It also checks if the main 486 * method exists. 487 * 488 * See bugid 5030265. The Main-Class name has already been parsed 489 * from the manifest, but not parsed properly for UTF-8 support. 490 * Hence the code here ignores the value previously extracted and 491 * uses the pre-existing code to reextract the value. This is 492 * possibly an end of release cycle expedient. However, it has 493 * also been discovered that passing some character sets through 494 * the environment has "strange" behavior on some variants of 495 * Windows. Hence, maybe the manifest parsing code local to the 496 * launcher should never be enhanced. 497 * 498 * Hence, future work should either: 499 * 1) Correct the local parsing code and verify that the 500 * Main-Class attribute gets properly passed through 501 * all environments, 502 * 2) Remove the vestages of maintaining main_class through 503 * the environment (and remove these comments). 504 * 505 * This method also correctly handles launching existing JavaFX 506 * applications that may or may not have a Main-Class manifest entry. 507 */ 508 mainClass = LoadMainClass(env, mode, what); 509 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 510 /* 511 * In some cases when launching an application that needs a helper, e.g., a 512 * JavaFX application with no main method, the mainClass will not be the 513 * applications own main class but rather a helper class. To keep things 514 * consistent in the UI we need to track and report the application main class. 515 */ 516 appClass = GetApplicationClass(env); 517 NULL_CHECK_RETURN_VALUE(appClass, -1); 518 519 /* Build platform specific argument array */ 520 mainArgs = CreateApplicationArgs(env, argv, argc); 521 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 522 523 if (dryRun) { 524 ret = 0; 525 LEAVE(); 526 } 527 528 /* 529 * PostJVMInit uses the class name as the application name for GUI purposes, 530 * for example, on OSX this sets the application name in the menu bar for 531 * both SWT and JavaFX. So we'll pass the actual application class here 532 * instead of mainClass as that may be a launcher or helper class instead 533 * of the application class. 534 */ 535 PostJVMInit(env, appClass, vm); 536 CHECK_EXCEPTION_LEAVE(1); 537 538 /* 539 * The LoadMainClass not only loads the main class, it will also ensure 540 * that the main method's signature is correct, therefore further checking 541 * is not required. The main method is invoked here so that extraneous java 542 * stacks are not in the application stack trace. 543 */ 544 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 545 "([Ljava/lang/String;)V"); 546 CHECK_EXCEPTION_NULL_LEAVE(mainID); 547 548 /* Invoke main method. */ 549 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 550 551 /* 552 * The launcher's exit code (in the absence of calls to 553 * System.exit) will be non-zero if main threw an exception. 554 */ 555 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 556 557 LEAVE(); 558 } 559 560 /* 561 * Test if the given name is one of the class path options. 562 */ 563 static jboolean 564 IsClassPathOption(const char* name) { 565 return JLI_StrCmp(name, "-classpath") == 0 || 566 JLI_StrCmp(name, "-cp") == 0 || 567 JLI_StrCmp(name, "--class-path") == 0; 568 } 569 570 /* 571 * Test if the given name is a launcher option taking the main entry point. 572 */ 573 static jboolean 574 IsLauncherMainOption(const char* name) { 575 return JLI_StrCmp(name, "--module") == 0 || 576 JLI_StrCmp(name, "-m") == 0; 577 } 578 579 /* 580 * Test if the given name is a white-space launcher option. 581 */ 582 static jboolean 583 IsLauncherOption(const char* name) { 584 return IsClassPathOption(name) || 585 IsLauncherMainOption(name) || 586 JLI_StrCmp(name, "--describe-module") == 0 || 587 JLI_StrCmp(name, "-d") == 0 || 588 JLI_StrCmp(name, "--source") == 0; 589 } 590 591 /* 592 * Test if the given name is a module-system white-space option that 593 * will be passed to the VM with its corresponding long-form option 594 * name and "=" delimiter. 595 */ 596 static jboolean 597 IsModuleOption(const char* name) { 598 return JLI_StrCmp(name, "--module-path") == 0 || 599 JLI_StrCmp(name, "-p") == 0 || 600 JLI_StrCmp(name, "--upgrade-module-path") == 0 || 601 JLI_StrCmp(name, "--add-modules") == 0 || 602 JLI_StrCmp(name, "--limit-modules") == 0 || 603 JLI_StrCmp(name, "--add-exports") == 0 || 604 JLI_StrCmp(name, "--add-opens") == 0 || 605 JLI_StrCmp(name, "--add-reads") == 0 || 606 JLI_StrCmp(name, "--patch-module") == 0; 607 } 608 609 static jboolean 610 IsLongFormModuleOption(const char* name) { 611 return JLI_StrCCmp(name, "--module-path=") == 0 || 612 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 || 613 JLI_StrCCmp(name, "--add-modules=") == 0 || 614 JLI_StrCCmp(name, "--limit-modules=") == 0 || 615 JLI_StrCCmp(name, "--add-exports=") == 0 || 616 JLI_StrCCmp(name, "--add-reads=") == 0 || 617 JLI_StrCCmp(name, "--patch-module=") == 0; 618 } 619 620 /* 621 * Test if the given name has a white space option. 622 */ 623 jboolean 624 IsWhiteSpaceOption(const char* name) { 625 return IsModuleOption(name) || 626 IsLauncherOption(name); 627 } 628 629 /* 630 * Check if it is OK to set the mode. 631 * If the mode was previously set, and should not be changed, 632 * a fatal error is reported. 633 */ 634 static int 635 checkMode(int mode, int newMode, const char *arg) { 636 if (mode == LM_SOURCE) { 637 JLI_ReportErrorMessage(ARG_ERROR14, arg); 638 exit(1); 639 } 640 return newMode; 641 } 642 643 /* 644 * Test if an arg identifies a source file. 645 */ 646 jboolean 647 IsSourceFile(const char *arg) { 648 struct stat st; 649 return (JLI_HasSuffix(arg, ".java") && stat(arg, &st) == 0); 650 } 651 652 /* 653 * Checks the command line options to find which JVM type was 654 * specified. If no command line option was given for the JVM type, 655 * the default type is used. The environment variable 656 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 657 * checked as ways of specifying which JVM type to invoke. 658 */ 659 char * 660 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 661 int i, argi; 662 int argc; 663 char **newArgv; 664 int newArgvIdx = 0; 665 int isVMType; 666 int jvmidx = -1; 667 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 668 669 argc = *pargc; 670 671 /* To make things simpler we always copy the argv array */ 672 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 673 674 /* The program name is always present */ 675 newArgv[newArgvIdx++] = (*argv)[0]; 676 677 for (argi = 1; argi < argc; argi++) { 678 char *arg = (*argv)[argi]; 679 isVMType = 0; 680 681 if (IsJavaArgs()) { 682 if (arg[0] != '-') { 683 newArgv[newArgvIdx++] = arg; 684 continue; 685 } 686 } else { 687 if (IsWhiteSpaceOption(arg)) { 688 newArgv[newArgvIdx++] = arg; 689 argi++; 690 if (argi < argc) { 691 newArgv[newArgvIdx++] = (*argv)[argi]; 692 } 693 continue; 694 } 695 if (arg[0] != '-') break; 696 } 697 698 /* Did the user pass an explicit VM type? */ 699 i = KnownVMIndex(arg); 700 if (i >= 0) { 701 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 702 isVMType = 1; 703 *pargc = *pargc - 1; 704 } 705 706 /* Did the user specify an "alternate" VM? */ 707 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 708 isVMType = 1; 709 jvmtype = arg+((arg[1]=='X')? 10 : 12); 710 jvmidx = -1; 711 } 712 713 if (!isVMType) { 714 newArgv[newArgvIdx++] = arg; 715 } 716 } 717 718 /* 719 * Finish copying the arguments if we aborted the above loop. 720 * NOTE that if we aborted via "break" then we did NOT copy the 721 * last argument above, and in addition argi will be less than 722 * argc. 723 */ 724 while (argi < argc) { 725 newArgv[newArgvIdx++] = (*argv)[argi]; 726 argi++; 727 } 728 729 /* argv is null-terminated */ 730 newArgv[newArgvIdx] = 0; 731 732 /* Copy back argv */ 733 *argv = newArgv; 734 *pargc = newArgvIdx; 735 736 /* use the default VM type if not specified (no alias processing) */ 737 if (jvmtype == NULL) { 738 char* result = knownVMs[0].name+1; 739 JLI_TraceLauncher("Default VM: %s\n", result); 740 return result; 741 } 742 743 /* if using an alternate VM, no alias processing */ 744 if (jvmidx < 0) 745 return jvmtype; 746 747 /* Resolve aliases first */ 748 { 749 int loopCount = 0; 750 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 751 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 752 753 if (loopCount > knownVMsCount) { 754 if (!speculative) { 755 JLI_ReportErrorMessage(CFG_ERROR1); 756 exit(1); 757 } else { 758 return "ERROR"; 759 /* break; */ 760 } 761 } 762 763 if (nextIdx < 0) { 764 if (!speculative) { 765 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 766 exit(1); 767 } else { 768 return "ERROR"; 769 } 770 } 771 jvmidx = nextIdx; 772 jvmtype = knownVMs[jvmidx].name+1; 773 loopCount++; 774 } 775 } 776 777 switch (knownVMs[jvmidx].flag) { 778 case VM_WARN: 779 if (!speculative) { 780 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 781 } 782 /* fall through */ 783 case VM_IGNORE: 784 jvmtype = knownVMs[jvmidx=0].name + 1; 785 /* fall through */ 786 case VM_KNOWN: 787 break; 788 case VM_ERROR: 789 if (!speculative) { 790 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 791 exit(1); 792 } else { 793 return "ERROR"; 794 } 795 } 796 797 return jvmtype; 798 } 799 800 /* 801 * This method must be called before the VM is loaded, primarily 802 * used to parse and set any VM related options or env variables. 803 * This function is non-destructive leaving the argument list intact. 804 */ 805 static void 806 SetJvmEnvironment(int argc, char **argv) { 807 808 static const char* NMT_Env_Name = "NMT_LEVEL_"; 809 int i; 810 /* process only the launcher arguments */ 811 for (i = 0; i < argc; i++) { 812 char *arg = argv[i]; 813 /* 814 * Since this must be a VM flag we stop processing once we see 815 * an argument the launcher would not have processed beyond (such 816 * as -version or -h), or an argument that indicates the following 817 * arguments are for the application (i.e. the main class name, or 818 * the -jar argument). 819 */ 820 if (i > 0) { 821 char *prev = argv[i - 1]; 822 // skip non-dash arg preceded by class path specifiers 823 if (*arg != '-' && IsWhiteSpaceOption(prev)) { 824 continue; 825 } 826 827 if (*arg != '-' || isTerminalOpt(arg)) { 828 return; 829 } 830 } 831 /* 832 * The following case checks for "-XX:NativeMemoryTracking=value". 833 * If value is non null, an environmental variable set to this value 834 * will be created to be used by the JVM. 835 * The argument is passed to the JVM, which will check validity. 836 * The JVM is responsible for removing the env variable. 837 */ 838 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { 839 int retval; 840 // get what follows this parameter, include "=" 841 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); 842 if (JLI_StrLen(arg) > pnlen) { 843 char* value = arg + pnlen; 844 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits 845 846 /* 847 * ensures that malloc successful 848 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call 849 * that could store the address. 850 */ 851 char * pbuf = (char*)JLI_MemAlloc(pbuflen); 852 853 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); 854 retval = JLI_PutEnv(pbuf); 855 if (JLI_IsTraceLauncher()) { 856 char* envName; 857 char* envBuf; 858 859 // ensures that malloc successful 860 envName = (char*)JLI_MemAlloc(pbuflen); 861 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); 862 863 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); 864 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); 865 envBuf = getenv(envName); 866 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); 867 free(envName); 868 } 869 } 870 } 871 } 872 } 873 874 /* copied from HotSpot function "atomll()" */ 875 static int 876 parse_size(const char *s, jlong *result) { 877 jlong n = 0; 878 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n); 879 if (args_read != 1) { 880 return 0; 881 } 882 while (*s != '\0' && *s >= '0' && *s <= '9') { 883 s++; 884 } 885 // 4705540: illegal if more characters are found after the first non-digit 886 if (JLI_StrLen(s) > 1) { 887 return 0; 888 } 889 switch (*s) { 890 case 'T': case 't': 891 *result = n * GB * KB; 892 return 1; 893 case 'G': case 'g': 894 *result = n * GB; 895 return 1; 896 case 'M': case 'm': 897 *result = n * MB; 898 return 1; 899 case 'K': case 'k': 900 *result = n * KB; 901 return 1; 902 case '\0': 903 *result = n; 904 return 1; 905 default: 906 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 907 return 0; 908 } 909 } 910 911 /* 912 * Adds a new VM option with the given name and value. 913 */ 914 void 915 AddOption(char *str, void *info) 916 { 917 /* 918 * Expand options array if needed to accommodate at least one more 919 * VM option. 920 */ 921 if (numOptions >= maxOptions) { 922 if (options == 0) { 923 maxOptions = 4; 924 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 925 } else { 926 JavaVMOption *tmp; 927 maxOptions *= 2; 928 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 929 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 930 JLI_MemFree(options); 931 options = tmp; 932 } 933 } 934 options[numOptions].optionString = str; 935 options[numOptions++].extraInfo = info; 936 937 /* 938 * -Xss is used both by the JVM and here to establish the stack size of the thread 939 * created to launch the JVM. In the latter case we need to ensure we don't go 940 * below the minimum stack size allowed. If -Xss is zero that tells the JVM to use 941 * 'default' sizes (either from JVM or system configuration, e.g. 'ulimit -s' on linux), 942 * and is not itself a small stack size that will be rejected. So we ignore -Xss0 here. 943 */ 944 if (JLI_StrCCmp(str, "-Xss") == 0) { 945 jlong tmp; 946 if (parse_size(str + 4, &tmp)) { 947 threadStackSize = tmp; 948 if (threadStackSize > 0 && threadStackSize < (jlong)STACK_SIZE_MINIMUM) { 949 threadStackSize = STACK_SIZE_MINIMUM; 950 } 951 } 952 } 953 954 if (JLI_StrCCmp(str, "-Xmx") == 0) { 955 jlong tmp; 956 if (parse_size(str + 4, &tmp)) { 957 maxHeapSize = tmp; 958 } 959 } 960 961 if (JLI_StrCCmp(str, "-Xms") == 0) { 962 jlong tmp; 963 if (parse_size(str + 4, &tmp)) { 964 initialHeapSize = tmp; 965 } 966 } 967 } 968 969 static void 970 SetClassPath(const char *s) 971 { 972 char *def; 973 const char *orig = s; 974 static const char format[] = "-Djava.class.path=%s"; 975 /* 976 * usually we should not get a null pointer, but there are cases where 977 * we might just get one, in which case we simply ignore it, and let the 978 * caller deal with it 979 */ 980 if (s == NULL) 981 return; 982 s = JLI_WildcardExpandClasspath(s); 983 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 984 // s is became corrupted after expanding wildcards 985 return; 986 def = JLI_MemAlloc(sizeof(format) 987 - 2 /* strlen("%s") */ 988 + JLI_StrLen(s)); 989 sprintf(def, format, s); 990 AddOption(def, NULL); 991 if (s != orig) 992 JLI_MemFree((char *) s); 993 _have_classpath = JNI_TRUE; 994 } 995 996 static void 997 AddLongFormOption(const char *option, const char *arg) 998 { 999 static const char format[] = "%s=%s"; 1000 char *def; 1001 size_t def_len; 1002 1003 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1; 1004 def = JLI_MemAlloc(def_len); 1005 JLI_Snprintf(def, def_len, format, option, arg); 1006 AddOption(def, NULL); 1007 } 1008 1009 static void 1010 SetMainModule(const char *s) 1011 { 1012 static const char format[] = "-Djdk.module.main=%s"; 1013 char* slash = JLI_StrChr(s, '/'); 1014 size_t s_len, def_len; 1015 char *def; 1016 1017 /* value may be <module> or <module>/<mainclass> */ 1018 if (slash == NULL) { 1019 s_len = JLI_StrLen(s); 1020 } else { 1021 s_len = (size_t) (slash - s); 1022 } 1023 def_len = sizeof(format) 1024 - 2 /* strlen("%s") */ 1025 + s_len; 1026 def = JLI_MemAlloc(def_len); 1027 JLI_Snprintf(def, def_len, format, s); 1028 AddOption(def, NULL); 1029 } 1030 1031 /* 1032 * The SelectVersion() routine ensures that an appropriate version of 1033 * the JRE is running. The specification for the appropriate version 1034 * is obtained from either the manifest of a jar file (preferred) or 1035 * from command line options. 1036 * The routine also parses splash screen command line options and 1037 * passes on their values in private environment variables. 1038 */ 1039 static void 1040 SelectVersion(int argc, char **argv, char **main_class) 1041 { 1042 char *arg; 1043 char *operand; 1044 char *version = NULL; 1045 char *jre = NULL; 1046 int jarflag = 0; 1047 int headlessflag = 0; 1048 int restrict_search = -1; /* -1 implies not known */ 1049 manifest_info info; 1050 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 1051 char *splash_file_name = NULL; 1052 char *splash_jar_name = NULL; 1053 char *env_in; 1054 int res; 1055 jboolean has_arg; 1056 1057 /* 1058 * If the version has already been selected, set *main_class 1059 * with the value passed through the environment (if any) and 1060 * simply return. 1061 */ 1062 1063 /* 1064 * This environmental variable can be set by mJRE capable JREs 1065 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been 1066 * stripped by those JREs. This environmental variable allows 1.9+ 1067 * JREs to be started by these mJRE capable JREs. 1068 * Note that mJRE directives in the jar manifest file would have been 1069 * ignored for a JRE started by another JRE... 1070 * .. skipped for JRE 1.5 and beyond. 1071 * .. not even checked for pre 1.5. 1072 */ 1073 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 1074 if (*env_in != '\0') 1075 *main_class = JLI_StringDup(env_in); 1076 return; 1077 } 1078 1079 /* 1080 * Scan through the arguments for options relevant to multiple JRE 1081 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8. 1082 * 1083 * This capability is no longer available with JRE versions 1.9 and later. 1084 * These command line options are reported as errors. 1085 */ 1086 1087 argc--; 1088 argv++; 1089 while ((arg = *argv) != 0 && *arg == '-') { 1090 has_arg = IsOptionWithArgument(argc, argv); 1091 if (JLI_StrCCmp(arg, "-version:") == 0) { 1092 JLI_ReportErrorMessage(SPC_ERROR1); 1093 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 1094 JLI_ReportErrorMessage(SPC_ERROR2); 1095 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) { 1096 JLI_ReportErrorMessage(SPC_ERROR2); 1097 } else { 1098 if (JLI_StrCmp(arg, "-jar") == 0) 1099 jarflag = 1; 1100 if (IsWhiteSpaceOption(arg)) { 1101 if (has_arg) { 1102 argc--; 1103 argv++; 1104 arg = *argv; 1105 } 1106 } 1107 1108 /* 1109 * Checking for headless toolkit option in the some way as AWT does: 1110 * "true" means true and any other value means false 1111 */ 1112 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 1113 headlessflag = 1; 1114 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 1115 headlessflag = 0; 1116 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1117 splash_file_name = arg+8; 1118 } 1119 } 1120 argc--; 1121 argv++; 1122 } 1123 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 1124 operand = NULL; 1125 } else { 1126 argc--; 1127 operand = *argv++; 1128 } 1129 1130 /* 1131 * If there is a jar file, read the manifest. If the jarfile can't be 1132 * read, the manifest can't be read from the jar file, or the manifest 1133 * is corrupt, issue the appropriate error messages and exit. 1134 * 1135 * Even if there isn't a jar file, construct a manifest_info structure 1136 * containing the command line information. It's a convenient way to carry 1137 * this data around. 1138 */ 1139 if (jarflag && operand) { 1140 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 1141 if (res == -1) 1142 JLI_ReportErrorMessage(JAR_ERROR2, operand); 1143 else 1144 JLI_ReportErrorMessage(JAR_ERROR3, operand); 1145 exit(1); 1146 } 1147 1148 /* 1149 * Command line splash screen option should have precedence 1150 * over the manifest, so the manifest data is used only if 1151 * splash_file_name has not been initialized above during command 1152 * line parsing 1153 */ 1154 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 1155 splash_file_name = info.splashscreen_image_file_name; 1156 splash_jar_name = operand; 1157 } 1158 } else { 1159 info.manifest_version = NULL; 1160 info.main_class = NULL; 1161 info.jre_version = NULL; 1162 info.jre_restrict_search = 0; 1163 } 1164 1165 /* 1166 * Passing on splash screen info in environment variables 1167 */ 1168 if (splash_file_name && !headlessflag) { 1169 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 1170 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1171 JLI_StrCat(splash_file_entry, splash_file_name); 1172 putenv(splash_file_entry); 1173 } 1174 if (splash_jar_name && !headlessflag) { 1175 splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 1176 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 1177 JLI_StrCat(splash_jar_entry, splash_jar_name); 1178 putenv(splash_jar_entry); 1179 } 1180 1181 1182 /* 1183 * "Valid" returns (other than unrecoverable errors) follow. Set 1184 * main_class as a side-effect of this routine. 1185 */ 1186 if (info.main_class != NULL) 1187 *main_class = JLI_StringDup(info.main_class); 1188 1189 if (info.jre_version == NULL) { 1190 JLI_FreeManifest(); 1191 return; 1192 } 1193 1194 } 1195 1196 /* 1197 * Test if the current argv is an option, i.e. with a leading `-` 1198 * and followed with an argument without a leading `-`. 1199 */ 1200 static jboolean 1201 IsOptionWithArgument(int argc, char** argv) { 1202 char* option; 1203 char* arg; 1204 1205 if (argc <= 1) 1206 return JNI_FALSE; 1207 1208 option = *argv; 1209 arg = *(argv+1); 1210 return *option == '-' && *arg != '-'; 1211 } 1212 1213 /* 1214 * Gets the option, and its argument if the option has an argument. 1215 * It will update *pargc, **pargv to the next option. 1216 */ 1217 static int 1218 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) { 1219 int argc = *pargc; 1220 char** argv = *pargv; 1221 char* arg = *argv; 1222 1223 char* option = arg; 1224 char* value = NULL; 1225 char* equals = NULL; 1226 int kind = LAUNCHER_OPTION; 1227 jboolean has_arg = JNI_FALSE; 1228 1229 // check if this option may be a white-space option with an argument 1230 has_arg = IsOptionWithArgument(argc, argv); 1231 1232 argv++; --argc; 1233 if (IsLauncherOption(arg)) { 1234 if (has_arg) { 1235 value = *argv; 1236 argv++; --argc; 1237 } 1238 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION 1239 : LAUNCHER_OPTION_WITH_ARGUMENT; 1240 } else if (IsModuleOption(arg)) { 1241 kind = VM_LONG_OPTION_WITH_ARGUMENT; 1242 if (has_arg) { 1243 value = *argv; 1244 argv++; --argc; 1245 } 1246 1247 /* 1248 * Support short form alias 1249 */ 1250 if (JLI_StrCmp(arg, "-p") == 0) { 1251 option = "--module-path"; 1252 } 1253 1254 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) { 1255 value = equals+1; 1256 if (JLI_StrCCmp(arg, "--describe-module=") == 0 || 1257 JLI_StrCCmp(arg, "--module=") == 0 || 1258 JLI_StrCCmp(arg, "--class-path=") == 0|| 1259 JLI_StrCCmp(arg, "--source=") == 0) { 1260 kind = LAUNCHER_OPTION_WITH_ARGUMENT; 1261 } else { 1262 kind = VM_LONG_OPTION; 1263 } 1264 } 1265 1266 *pargc = argc; 1267 *pargv = argv; 1268 *poption = option; 1269 *pvalue = value; 1270 return kind; 1271 } 1272 1273 /* 1274 * Parses command line arguments. Returns JNI_FALSE if launcher 1275 * should exit without starting vm, returns JNI_TRUE if vm needs 1276 * to be started to process given options. *pret (the launcher 1277 * process return value) is set to 0 for a normal exit. 1278 */ 1279 static jboolean 1280 ParseArguments(int *pargc, char ***pargv, 1281 int *pmode, char **pwhat, 1282 int *pret, const char *jrepath) 1283 { 1284 int argc = *pargc; 1285 char **argv = *pargv; 1286 int mode = LM_UNKNOWN; 1287 char *arg; 1288 1289 *pret = 0; 1290 1291 while ((arg = *argv) != 0 && *arg == '-') { 1292 char *option = NULL; 1293 char *value = NULL; 1294 int kind = GetOpt(&argc, &argv, &option, &value); 1295 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0; 1296 jboolean has_arg_any_len = value != NULL; 1297 1298 /* 1299 * Option to set main entry point 1300 */ 1301 if (JLI_StrCmp(arg, "-jar") == 0) { 1302 ARG_CHECK(argc, ARG_ERROR2, arg); 1303 mode = checkMode(mode, LM_JAR, arg); 1304 } else if (JLI_StrCmp(arg, "--module") == 0 || 1305 JLI_StrCCmp(arg, "--module=") == 0 || 1306 JLI_StrCmp(arg, "-m") == 0) { 1307 REPORT_ERROR (has_arg, ARG_ERROR5, arg); 1308 SetMainModule(value); 1309 mode = checkMode(mode, LM_MODULE, arg); 1310 if (has_arg) { 1311 *pwhat = value; 1312 break; 1313 } 1314 } else if (JLI_StrCmp(arg, "--source") == 0 || 1315 JLI_StrCCmp(arg, "--source=") == 0) { 1316 REPORT_ERROR (has_arg, ARG_ERROR13, arg); 1317 mode = LM_SOURCE; 1318 if (has_arg) { 1319 const char *prop = "-Djdk.internal.javac.source="; 1320 size_t size = JLI_StrLen(prop) + JLI_StrLen(value) + 1; 1321 char *propValue = (char *)JLI_MemAlloc(size); 1322 JLI_Snprintf(propValue, size, "%s%s", prop, value); 1323 AddOption(propValue, NULL); 1324 } 1325 } else if (JLI_StrCmp(arg, "--class-path") == 0 || 1326 JLI_StrCCmp(arg, "--class-path=") == 0 || 1327 JLI_StrCmp(arg, "-classpath") == 0 || 1328 JLI_StrCmp(arg, "-cp") == 0) { 1329 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg); 1330 SetClassPath(value); 1331 if (mode != LM_SOURCE) { 1332 mode = LM_CLASS; 1333 } 1334 } else if (JLI_StrCmp(arg, "--list-modules") == 0) { 1335 listModules = JNI_TRUE; 1336 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) { 1337 showResolvedModules = JNI_TRUE; 1338 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) { 1339 AddOption("-Djdk.module.validation=true", NULL); 1340 validateModules = JNI_TRUE; 1341 } else if (JLI_StrCmp(arg, "--describe-module") == 0 || 1342 JLI_StrCCmp(arg, "--describe-module=") == 0 || 1343 JLI_StrCmp(arg, "-d") == 0) { 1344 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg); 1345 describeModule = value; 1346 /* 1347 * Parse white-space options 1348 */ 1349 } else if (has_arg) { 1350 if (kind == VM_LONG_OPTION) { 1351 AddOption(option, NULL); 1352 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) { 1353 AddLongFormOption(option, value); 1354 } 1355 /* 1356 * Error missing argument 1357 */ 1358 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 || 1359 JLI_StrCmp(arg, "-p") == 0 || 1360 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) { 1361 REPORT_ERROR (has_arg, ARG_ERROR4, arg); 1362 1363 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) { 1364 REPORT_ERROR (has_arg, ARG_ERROR6, arg); 1365 /* 1366 * The following cases will cause the argument parsing to stop 1367 */ 1368 } else if (JLI_StrCmp(arg, "-help") == 0 || 1369 JLI_StrCmp(arg, "-h") == 0 || 1370 JLI_StrCmp(arg, "-?") == 0) { 1371 printUsage = JNI_TRUE; 1372 return JNI_TRUE; 1373 } else if (JLI_StrCmp(arg, "--help") == 0) { 1374 printUsage = JNI_TRUE; 1375 printTo = USE_STDOUT; 1376 return JNI_TRUE; 1377 } else if (JLI_StrCmp(arg, "-version") == 0) { 1378 printVersion = JNI_TRUE; 1379 return JNI_TRUE; 1380 } else if (JLI_StrCmp(arg, "--version") == 0) { 1381 printVersion = JNI_TRUE; 1382 printTo = USE_STDOUT; 1383 return JNI_TRUE; 1384 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1385 showVersion = JNI_TRUE; 1386 } else if (JLI_StrCmp(arg, "--show-version") == 0) { 1387 showVersion = JNI_TRUE; 1388 printTo = USE_STDOUT; 1389 } else if (JLI_StrCmp(arg, "--dry-run") == 0) { 1390 dryRun = JNI_TRUE; 1391 } else if (JLI_StrCmp(arg, "-X") == 0) { 1392 printXUsage = JNI_TRUE; 1393 return JNI_TRUE; 1394 } else if (JLI_StrCmp(arg, "--help-extra") == 0) { 1395 printXUsage = JNI_TRUE; 1396 printTo = USE_STDOUT; 1397 return JNI_TRUE; 1398 /* 1399 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1400 * In the latter case, any SUBOPT value not recognized will default to "all" 1401 */ 1402 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1403 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1404 showSettings = arg; 1405 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1406 AddOption("-Dsun.java.launcher.diag=true", NULL); 1407 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) { 1408 AddOption("-Djdk.module.showModuleResolution=true", NULL); 1409 /* 1410 * The following case provide backward compatibility with old-style 1411 * command line options. 1412 */ 1413 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1414 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1415 return JNI_FALSE; 1416 } else if (JLI_StrCmp(arg, "--full-version") == 0) { 1417 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion()); 1418 return JNI_FALSE; 1419 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1420 AddOption("-verbose:gc", NULL); 1421 } else if (JLI_StrCmp(arg, "-t") == 0) { 1422 AddOption("-Xt", NULL); 1423 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1424 AddOption("-Xtm", NULL); 1425 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1426 AddOption("-Xdebug", NULL); 1427 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1428 AddOption("-Xnoclassgc", NULL); 1429 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1430 JLI_ReportErrorMessage(ARG_DEPRECATED, "-Xfuture"); 1431 AddOption("-Xverify:all", NULL); 1432 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1433 AddOption("-Xverify:all", NULL); 1434 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1435 AddOption("-Xverify:remote", NULL); 1436 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1437 /* 1438 * Note that no 'deprecated' message is needed here because the VM 1439 * issues 'deprecated' messages for -noverify and -Xverify:none. 1440 */ 1441 AddOption("-Xverify:none", NULL); 1442 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1443 JLI_StrCCmp(arg, "-oss") == 0 || 1444 JLI_StrCCmp(arg, "-ms") == 0 || 1445 JLI_StrCCmp(arg, "-mx") == 0) { 1446 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1447 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1448 AddOption(tmp, NULL); 1449 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1450 JLI_StrCmp(arg, "-cs") == 0 || 1451 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1452 /* No longer supported */ 1453 JLI_ReportErrorMessage(ARG_WARN, arg); 1454 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1455 ; /* Ignore machine independent options already handled */ 1456 } else if (ProcessPlatformOption(arg)) { 1457 ; /* Processing of platform dependent options */ 1458 } else { 1459 /* java.class.path set on the command line */ 1460 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) { 1461 _have_classpath = JNI_TRUE; 1462 } 1463 AddOption(arg, NULL); 1464 } 1465 } 1466 1467 if (*pwhat == NULL && --argc >= 0) { 1468 *pwhat = *argv++; 1469 } 1470 1471 if (*pwhat == NULL) { 1472 /* LM_UNKNOWN okay for options that exit */ 1473 if (!listModules && !describeModule && !validateModules) { 1474 *pret = 1; 1475 } 1476 } else if (mode == LM_UNKNOWN) { 1477 /* default to LM_CLASS if -m, -jar and -cp options are 1478 * not specified */ 1479 if (!_have_classpath) { 1480 SetClassPath("."); 1481 } 1482 mode = IsSourceFile(arg) ? LM_SOURCE : LM_CLASS; 1483 } else if (mode == LM_CLASS && IsSourceFile(arg)) { 1484 /* override LM_CLASS mode if given a source file */ 1485 mode = LM_SOURCE; 1486 } 1487 1488 if (mode == LM_SOURCE) { 1489 AddOption("--add-modules=ALL-DEFAULT", NULL); 1490 *pwhat = SOURCE_LAUNCHER_MAIN_ENTRY; 1491 // adjust (argc, argv) so that the name of the source file 1492 // is included in the args passed to the source launcher 1493 // main entry class 1494 *pargc = argc + 1; 1495 *pargv = argv - 1; 1496 } else { 1497 if (argc >= 0) { 1498 *pargc = argc; 1499 *pargv = argv; 1500 } 1501 } 1502 1503 *pmode = mode; 1504 1505 return JNI_TRUE; 1506 } 1507 1508 /* 1509 * Initializes the Java Virtual Machine. Also frees options array when 1510 * finished. 1511 */ 1512 static jboolean 1513 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1514 { 1515 JavaVMInitArgs args; 1516 jint r; 1517 1518 memset(&args, 0, sizeof(args)); 1519 args.version = JNI_VERSION_1_2; 1520 args.nOptions = numOptions; 1521 args.options = options; 1522 args.ignoreUnrecognized = JNI_FALSE; 1523 1524 if (JLI_IsTraceLauncher()) { 1525 int i = 0; 1526 printf("JavaVM args:\n "); 1527 printf("version 0x%08lx, ", (long)args.version); 1528 printf("ignoreUnrecognized is %s, ", 1529 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1530 printf("nOptions is %ld\n", (long)args.nOptions); 1531 for (i = 0; i < numOptions; i++) 1532 printf(" option[%2d] = '%s'\n", 1533 i, args.options[i].optionString); 1534 } 1535 1536 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1537 JLI_MemFree(options); 1538 return r == JNI_OK; 1539 } 1540 1541 static jclass helperClass = NULL; 1542 1543 jclass 1544 GetLauncherHelperClass(JNIEnv *env) 1545 { 1546 if (helperClass == NULL) { 1547 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1548 "sun/launcher/LauncherHelper")); 1549 } 1550 return helperClass; 1551 } 1552 1553 static jmethodID makePlatformStringMID = NULL; 1554 /* 1555 * Returns a new Java string object for the specified platform string. 1556 */ 1557 static jstring 1558 NewPlatformString(JNIEnv *env, char *s) 1559 { 1560 int len = (int)JLI_StrLen(s); 1561 jbyteArray ary; 1562 jclass cls = GetLauncherHelperClass(env); 1563 NULL_CHECK0(cls); 1564 if (s == NULL) 1565 return 0; 1566 1567 ary = (*env)->NewByteArray(env, len); 1568 if (ary != 0) { 1569 jstring str = 0; 1570 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1571 if (!(*env)->ExceptionOccurred(env)) { 1572 if (makePlatformStringMID == NULL) { 1573 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1574 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1575 } 1576 str = (*env)->CallStaticObjectMethod(env, cls, 1577 makePlatformStringMID, USE_STDERR, ary); 1578 CHECK_EXCEPTION_RETURN_VALUE(0); 1579 (*env)->DeleteLocalRef(env, ary); 1580 return str; 1581 } 1582 } 1583 return 0; 1584 } 1585 1586 /* 1587 * Returns a new array of Java string objects for the specified 1588 * array of platform strings. 1589 */ 1590 jobjectArray 1591 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1592 { 1593 jarray cls; 1594 jarray ary; 1595 int i; 1596 1597 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1598 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1599 CHECK_EXCEPTION_RETURN_VALUE(0); 1600 for (i = 0; i < strc; i++) { 1601 jstring str = NewPlatformString(env, *strv++); 1602 NULL_CHECK0(str); 1603 (*env)->SetObjectArrayElement(env, ary, i, str); 1604 (*env)->DeleteLocalRef(env, str); 1605 } 1606 return ary; 1607 } 1608 1609 /* 1610 * Loads a class and verifies that the main class is present and it is ok to 1611 * call it for more details refer to the java implementation. 1612 */ 1613 static jclass 1614 LoadMainClass(JNIEnv *env, int mode, char *name) 1615 { 1616 jmethodID mid; 1617 jstring str; 1618 jobject result; 1619 jlong start, end; 1620 jclass cls = GetLauncherHelperClass(env); 1621 NULL_CHECK0(cls); 1622 if (JLI_IsTraceLauncher()) { 1623 start = CounterGet(); 1624 } 1625 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1626 "checkAndLoadMain", 1627 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1628 1629 NULL_CHECK0(str = NewPlatformString(env, name)); 1630 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1631 USE_STDERR, mode, str)); 1632 1633 if (JLI_IsTraceLauncher()) { 1634 end = CounterGet(); 1635 printf("%ld micro seconds to load main class\n", 1636 (long)(jint)Counter2Micros(end-start)); 1637 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1638 } 1639 1640 return (jclass)result; 1641 } 1642 1643 static jclass 1644 GetApplicationClass(JNIEnv *env) 1645 { 1646 jmethodID mid; 1647 jclass appClass; 1648 jclass cls = GetLauncherHelperClass(env); 1649 NULL_CHECK0(cls); 1650 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1651 "getApplicationClass", 1652 "()Ljava/lang/Class;")); 1653 1654 appClass = (*env)->CallStaticObjectMethod(env, cls, mid); 1655 CHECK_EXCEPTION_RETURN_VALUE(0); 1656 return appClass; 1657 } 1658 1659 static char* expandWildcardOnLongOpt(char* arg) { 1660 char *p, *value; 1661 size_t optLen, valueLen; 1662 p = JLI_StrChr(arg, '='); 1663 1664 if (p == NULL || p[1] == '\0') { 1665 JLI_ReportErrorMessage(ARG_ERROR1, arg); 1666 exit(1); 1667 } 1668 p++; 1669 value = (char *) JLI_WildcardExpandClasspath(p); 1670 if (p == value) { 1671 // no wildcard 1672 return arg; 1673 } 1674 1675 optLen = p - arg; 1676 valueLen = JLI_StrLen(value); 1677 p = JLI_MemAlloc(optLen + valueLen + 1); 1678 memcpy(p, arg, optLen); 1679 memcpy(p + optLen, value, valueLen); 1680 p[optLen + valueLen] = '\0'; 1681 return p; 1682 } 1683 1684 /* 1685 * For tools, convert command line args thus: 1686 * javac -cp foo:foo/"*" -J-ms32m ... 1687 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1688 * 1689 * Takes 4 parameters, and returns the populated arguments 1690 */ 1691 static void 1692 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1693 { 1694 int argc = *pargc; 1695 char **argv = *pargv; 1696 int nargc = argc + jargc; 1697 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1698 int i; 1699 1700 *pargc = nargc; 1701 *pargv = nargv; 1702 1703 /* Copy the VM arguments (i.e. prefixed with -J) */ 1704 for (i = 0; i < jargc; i++) { 1705 const char *arg = jargv[i]; 1706 if (arg[0] == '-' && arg[1] == 'J') { 1707 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1708 } 1709 } 1710 1711 for (i = 0; i < argc; i++) { 1712 char *arg = argv[i]; 1713 if (arg[0] == '-' && arg[1] == 'J') { 1714 if (arg[2] == '\0') { 1715 JLI_ReportErrorMessage(ARG_ERROR3); 1716 exit(1); 1717 } 1718 *nargv++ = arg + 2; 1719 } 1720 } 1721 1722 /* Copy the rest of the arguments */ 1723 for (i = 0; i < jargc ; i++) { 1724 const char *arg = jargv[i]; 1725 if (arg[0] != '-' || arg[1] != 'J') { 1726 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1727 } 1728 } 1729 for (i = 0; i < argc; i++) { 1730 char *arg = argv[i]; 1731 if (arg[0] == '-') { 1732 if (arg[1] == 'J') 1733 continue; 1734 if (IsWildCardEnabled()) { 1735 if (IsClassPathOption(arg) && i < argc - 1) { 1736 *nargv++ = arg; 1737 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1738 i++; 1739 continue; 1740 } 1741 if (JLI_StrCCmp(arg, "--class-path=") == 0) { 1742 *nargv++ = expandWildcardOnLongOpt(arg); 1743 continue; 1744 } 1745 } 1746 } 1747 *nargv++ = arg; 1748 } 1749 *nargv = 0; 1750 } 1751 1752 /* 1753 * For our tools, we try to add 3 VM options: 1754 * -Denv.class.path=<envcp> 1755 * -Dapplication.home=<apphome> 1756 * -Djava.class.path=<appcp> 1757 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1758 * tells javac where to find binary classes through this environment 1759 * variable. Notice that users will be able to compile against our 1760 * tools classes (sun.tools.javac.Main) only if they explicitly add 1761 * tools.jar to CLASSPATH. 1762 * <apphome> is the directory where the application is installed. 1763 * <appcp> is the classpath to where our apps' classfiles are. 1764 */ 1765 static jboolean 1766 AddApplicationOptions(int cpathc, const char **cpathv) 1767 { 1768 char *envcp, *appcp, *apphome; 1769 char home[MAXPATHLEN]; /* application home */ 1770 char separator[] = { PATH_SEPARATOR, '\0' }; 1771 int size, i; 1772 1773 { 1774 const char *s = getenv("CLASSPATH"); 1775 if (s) { 1776 s = (char *) JLI_WildcardExpandClasspath(s); 1777 /* 40 for -Denv.class.path= */ 1778 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1779 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1780 sprintf(envcp, "-Denv.class.path=%s", s); 1781 AddOption(envcp, NULL); 1782 } 1783 } 1784 } 1785 1786 if (!GetApplicationHome(home, sizeof(home))) { 1787 JLI_ReportErrorMessage(CFG_ERROR5); 1788 return JNI_FALSE; 1789 } 1790 1791 /* 40 for '-Dapplication.home=' */ 1792 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1793 sprintf(apphome, "-Dapplication.home=%s", home); 1794 AddOption(apphome, NULL); 1795 1796 /* How big is the application's classpath? */ 1797 if (cpathc > 0) { 1798 size = 40; /* 40: "-Djava.class.path=" */ 1799 for (i = 0; i < cpathc; i++) { 1800 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1801 } 1802 appcp = (char *)JLI_MemAlloc(size + 1); 1803 JLI_StrCpy(appcp, "-Djava.class.path="); 1804 for (i = 0; i < cpathc; i++) { 1805 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1806 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1807 JLI_StrCat(appcp, separator); /* ; */ 1808 } 1809 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1810 AddOption(appcp, NULL); 1811 } 1812 return JNI_TRUE; 1813 } 1814 1815 /* 1816 * inject the -Dsun.java.command pseudo property into the args structure 1817 * this pseudo property is used in the HotSpot VM to expose the 1818 * Java class name and arguments to the main method to the VM. The 1819 * HotSpot VM uses this pseudo property to store the Java class name 1820 * (or jar file name) and the arguments to the class's main method 1821 * to the instrumentation memory region. The sun.java.command pseudo 1822 * property is not exported by HotSpot to the Java layer. 1823 */ 1824 void 1825 SetJavaCommandLineProp(char *what, int argc, char **argv) 1826 { 1827 1828 int i = 0; 1829 size_t len = 0; 1830 char* javaCommand = NULL; 1831 char* dashDstr = "-Dsun.java.command="; 1832 1833 if (what == NULL) { 1834 /* unexpected, one of these should be set. just return without 1835 * setting the property 1836 */ 1837 return; 1838 } 1839 1840 /* determine the amount of memory to allocate assuming 1841 * the individual components will be space separated 1842 */ 1843 len = JLI_StrLen(what); 1844 for (i = 0; i < argc; i++) { 1845 len += JLI_StrLen(argv[i]) + 1; 1846 } 1847 1848 /* allocate the memory */ 1849 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1850 1851 /* build the -D string */ 1852 *javaCommand = '\0'; 1853 JLI_StrCat(javaCommand, dashDstr); 1854 JLI_StrCat(javaCommand, what); 1855 1856 for (i = 0; i < argc; i++) { 1857 /* the components of the string are space separated. In 1858 * the case of embedded white space, the relationship of 1859 * the white space separated components to their true 1860 * positional arguments will be ambiguous. This issue may 1861 * be addressed in a future release. 1862 */ 1863 JLI_StrCat(javaCommand, " "); 1864 JLI_StrCat(javaCommand, argv[i]); 1865 } 1866 1867 AddOption(javaCommand, NULL); 1868 } 1869 1870 /* 1871 * JVM would like to know if it's created by a standard Sun launcher, or by 1872 * user native application, the following property indicates the former. 1873 */ 1874 void 1875 SetJavaLauncherProp() { 1876 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1877 } 1878 1879 /* 1880 * Prints the version information from the java.version and other properties. 1881 */ 1882 static void 1883 PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1884 { 1885 jclass ver; 1886 jmethodID print; 1887 1888 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps")); 1889 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1890 ver, 1891 (extraLF == JNI_TRUE) ? "println" : "print", 1892 "(Z)V" 1893 ) 1894 ); 1895 1896 (*env)->CallStaticVoidMethod(env, ver, print, printTo); 1897 } 1898 1899 /* 1900 * Prints all the Java settings, see the java implementation for more details. 1901 */ 1902 static void 1903 ShowSettings(JNIEnv *env, char *optString) 1904 { 1905 jmethodID showSettingsID; 1906 jstring joptString; 1907 jclass cls = GetLauncherHelperClass(env); 1908 NULL_CHECK(cls); 1909 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1910 "showSettings", "(ZLjava/lang/String;JJJ)V")); 1911 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1912 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1913 USE_STDERR, 1914 joptString, 1915 (jlong)initialHeapSize, 1916 (jlong)maxHeapSize, 1917 (jlong)threadStackSize); 1918 } 1919 1920 /** 1921 * Show resolved modules 1922 */ 1923 static void 1924 ShowResolvedModules(JNIEnv *env) 1925 { 1926 jmethodID showResolvedModulesID; 1927 jclass cls = GetLauncherHelperClass(env); 1928 NULL_CHECK(cls); 1929 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls, 1930 "showResolvedModules", "()V")); 1931 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID); 1932 } 1933 1934 /** 1935 * List observable modules 1936 */ 1937 static void 1938 ListModules(JNIEnv *env) 1939 { 1940 jmethodID listModulesID; 1941 jclass cls = GetLauncherHelperClass(env); 1942 NULL_CHECK(cls); 1943 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls, 1944 "listModules", "()V")); 1945 (*env)->CallStaticVoidMethod(env, cls, listModulesID); 1946 } 1947 1948 /** 1949 * Describe a module 1950 */ 1951 static void 1952 DescribeModule(JNIEnv *env, char *optString) 1953 { 1954 jmethodID describeModuleID; 1955 jstring joptString = NULL; 1956 jclass cls = GetLauncherHelperClass(env); 1957 NULL_CHECK(cls); 1958 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls, 1959 "describeModule", "(Ljava/lang/String;)V")); 1960 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1961 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString); 1962 } 1963 1964 /* 1965 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1966 */ 1967 static void 1968 PrintUsage(JNIEnv* env, jboolean doXUsage) 1969 { 1970 jmethodID initHelp, vmSelect, vmSynonym, printHelp, printXUsageMessage; 1971 jstring jprogname, vm1, vm2; 1972 int i; 1973 jclass cls = GetLauncherHelperClass(env); 1974 NULL_CHECK(cls); 1975 if (doXUsage) { 1976 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1977 "printXUsageMessage", "(Z)V")); 1978 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo); 1979 } else { 1980 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1981 "initHelpMessage", "(Ljava/lang/String;)V")); 1982 1983 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1984 "(Ljava/lang/String;Ljava/lang/String;)V")); 1985 1986 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1987 "appendVmSynonymMessage", 1988 "(Ljava/lang/String;Ljava/lang/String;)V")); 1989 1990 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1991 "printHelpMessage", "(Z)V")); 1992 1993 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1994 1995 /* Initialize the usage message with the usual preamble */ 1996 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1997 CHECK_EXCEPTION_RETURN(); 1998 1999 2000 /* Assemble the other variant part of the usage */ 2001 for (i=1; i<knownVMsCount; i++) { 2002 if (knownVMs[i].flag == VM_KNOWN) { 2003 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 2004 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 2005 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 2006 CHECK_EXCEPTION_RETURN(); 2007 } 2008 } 2009 for (i=1; i<knownVMsCount; i++) { 2010 if (knownVMs[i].flag == VM_ALIASED_TO) { 2011 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 2012 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 2013 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 2014 CHECK_EXCEPTION_RETURN(); 2015 } 2016 } 2017 2018 /* Complete the usage message and print to stderr*/ 2019 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo); 2020 } 2021 return; 2022 } 2023 2024 /* 2025 * Read the jvm.cfg file and fill the knownJVMs[] array. 2026 * 2027 * The functionality of the jvm.cfg file is subject to change without 2028 * notice and the mechanism will be removed in the future. 2029 * 2030 * The lexical structure of the jvm.cfg file is as follows: 2031 * 2032 * jvmcfg := { vmLine } 2033 * vmLine := knownLine 2034 * | aliasLine 2035 * | warnLine 2036 * | ignoreLine 2037 * | errorLine 2038 * | predicateLine 2039 * | commentLine 2040 * knownLine := flag "KNOWN" EOL 2041 * warnLine := flag "WARN" EOL 2042 * ignoreLine := flag "IGNORE" EOL 2043 * errorLine := flag "ERROR" EOL 2044 * aliasLine := flag "ALIASED_TO" flag EOL 2045 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 2046 * commentLine := "#" text EOL 2047 * flag := "-" identifier 2048 * 2049 * The semantics are that when someone specifies a flag on the command line: 2050 * - if the flag appears on a knownLine, then the identifier is used as 2051 * the name of the directory holding the JVM library (the name of the JVM). 2052 * - if the flag appears as the first flag on an aliasLine, the identifier 2053 * of the second flag is used as the name of the JVM. 2054 * - if the flag appears on a warnLine, the identifier is used as the 2055 * name of the JVM, but a warning is generated. 2056 * - if the flag appears on an ignoreLine, the identifier is recognized as the 2057 * name of a JVM, but the identifier is ignored and the default vm used 2058 * - if the flag appears on an errorLine, an error is generated. 2059 * - if the flag appears as the first flag on a predicateLine, and 2060 * the machine on which you are running passes the predicate indicated, 2061 * then the identifier of the second flag is used as the name of the JVM, 2062 * otherwise the identifier of the first flag is used as the name of the JVM. 2063 * If no flag is given on the command line, the first vmLine of the jvm.cfg 2064 * file determines the name of the JVM. 2065 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 2066 * since they only make sense if someone hasn't specified the name of the 2067 * JVM on the command line. 2068 * 2069 * The intent of the jvm.cfg file is to allow several JVM libraries to 2070 * be installed in different subdirectories of a single JRE installation, 2071 * for space-savings and convenience in testing. 2072 * The intent is explicitly not to provide a full aliasing or predicate 2073 * mechanism. 2074 */ 2075 jint 2076 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 2077 { 2078 FILE *jvmCfg; 2079 char line[MAXPATHLEN+20]; 2080 int cnt = 0; 2081 int lineno = 0; 2082 jlong start, end; 2083 int vmType; 2084 char *tmpPtr; 2085 char *altVMName = NULL; 2086 char *serverClassVMName = NULL; 2087 static char *whiteSpace = " \t"; 2088 if (JLI_IsTraceLauncher()) { 2089 start = CounterGet(); 2090 } 2091 2092 jvmCfg = fopen(jvmCfgName, "r"); 2093 if (jvmCfg == NULL) { 2094 if (!speculative) { 2095 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 2096 exit(1); 2097 } else { 2098 return -1; 2099 } 2100 } 2101 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 2102 vmType = VM_UNKNOWN; 2103 lineno++; 2104 if (line[0] == '#') 2105 continue; 2106 if (line[0] != '-') { 2107 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 2108 } 2109 if (cnt >= knownVMsLimit) { 2110 GrowKnownVMs(cnt); 2111 } 2112 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 2113 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 2114 if (*tmpPtr == 0) { 2115 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2116 } else { 2117 /* Null-terminate this string for JLI_StringDup below */ 2118 *tmpPtr++ = 0; 2119 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2120 if (*tmpPtr == 0) { 2121 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2122 } else { 2123 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 2124 vmType = VM_KNOWN; 2125 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 2126 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2127 if (*tmpPtr != 0) { 2128 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2129 } 2130 if (*tmpPtr == 0) { 2131 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2132 } else { 2133 /* Null terminate altVMName */ 2134 altVMName = tmpPtr; 2135 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2136 *tmpPtr = 0; 2137 vmType = VM_ALIASED_TO; 2138 } 2139 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 2140 vmType = VM_WARN; 2141 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 2142 vmType = VM_IGNORE; 2143 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 2144 vmType = VM_ERROR; 2145 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 2146 /* ignored */ 2147 } else { 2148 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 2149 vmType = VM_KNOWN; 2150 } 2151 } 2152 } 2153 2154 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 2155 if (vmType != VM_UNKNOWN) { 2156 knownVMs[cnt].name = JLI_StringDup(line); 2157 knownVMs[cnt].flag = vmType; 2158 switch (vmType) { 2159 default: 2160 break; 2161 case VM_ALIASED_TO: 2162 knownVMs[cnt].alias = JLI_StringDup(altVMName); 2163 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 2164 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 2165 break; 2166 } 2167 cnt++; 2168 } 2169 } 2170 fclose(jvmCfg); 2171 knownVMsCount = cnt; 2172 2173 if (JLI_IsTraceLauncher()) { 2174 end = CounterGet(); 2175 printf("%ld micro seconds to parse jvm.cfg\n", 2176 (long)(jint)Counter2Micros(end-start)); 2177 } 2178 2179 return cnt; 2180 } 2181 2182 2183 static void 2184 GrowKnownVMs(int minimum) 2185 { 2186 struct vmdesc* newKnownVMs; 2187 int newMax; 2188 2189 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 2190 if (newMax <= minimum) { 2191 newMax = minimum; 2192 } 2193 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 2194 if (knownVMs != NULL) { 2195 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 2196 } 2197 JLI_MemFree(knownVMs); 2198 knownVMs = newKnownVMs; 2199 knownVMsLimit = newMax; 2200 } 2201 2202 2203 /* Returns index of VM or -1 if not found */ 2204 static int 2205 KnownVMIndex(const char* name) 2206 { 2207 int i; 2208 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 2209 for (i = 0; i < knownVMsCount; i++) { 2210 if (!JLI_StrCmp(name, knownVMs[i].name)) { 2211 return i; 2212 } 2213 } 2214 return -1; 2215 } 2216 2217 static void 2218 FreeKnownVMs() 2219 { 2220 int i; 2221 for (i = 0; i < knownVMsCount; i++) { 2222 JLI_MemFree(knownVMs[i].name); 2223 knownVMs[i].name = NULL; 2224 } 2225 JLI_MemFree(knownVMs); 2226 } 2227 2228 /* 2229 * Displays the splash screen according to the jar file name 2230 * and image file names stored in environment variables 2231 */ 2232 void 2233 ShowSplashScreen() 2234 { 2235 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 2236 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 2237 int data_size; 2238 void *image_data = NULL; 2239 float scale_factor = 1; 2240 char *scaled_splash_name = NULL; 2241 jboolean isImageScaled = JNI_FALSE; 2242 size_t maxScaledImgNameLength = 0; 2243 if (file_name == NULL){ 2244 return; 2245 } 2246 2247 if (!DoSplashInit()) { 2248 goto exit; 2249 } 2250 2251 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name); 2252 2253 scaled_splash_name = JLI_MemAlloc( 2254 maxScaledImgNameLength * sizeof(char)); 2255 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name, 2256 &scale_factor, 2257 scaled_splash_name, maxScaledImgNameLength); 2258 if (jar_name) { 2259 2260 if (isImageScaled) { 2261 image_data = JLI_JarUnpackFile( 2262 jar_name, scaled_splash_name, &data_size); 2263 } 2264 2265 if (!image_data) { 2266 scale_factor = 1; 2267 image_data = JLI_JarUnpackFile( 2268 jar_name, file_name, &data_size); 2269 } 2270 if (image_data) { 2271 DoSplashSetScaleFactor(scale_factor); 2272 DoSplashLoadMemory(image_data, data_size); 2273 JLI_MemFree(image_data); 2274 } else { 2275 DoSplashClose(); 2276 } 2277 } else { 2278 if (isImageScaled) { 2279 DoSplashSetScaleFactor(scale_factor); 2280 DoSplashLoadFile(scaled_splash_name); 2281 } else { 2282 DoSplashLoadFile(file_name); 2283 } 2284 } 2285 JLI_MemFree(scaled_splash_name); 2286 2287 DoSplashSetFileJarName(file_name, jar_name); 2288 2289 exit: 2290 /* 2291 * Done with all command line processing and potential re-execs so 2292 * clean up the environment. 2293 */ 2294 (void)UnsetEnv(ENV_ENTRY); 2295 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 2296 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 2297 2298 JLI_MemFree(splash_jar_entry); 2299 JLI_MemFree(splash_file_entry); 2300 2301 } 2302 2303 const char* 2304 GetFullVersion() 2305 { 2306 return _fVersion; 2307 } 2308 2309 const char* 2310 GetProgramName() 2311 { 2312 return _program_name; 2313 } 2314 2315 const char* 2316 GetLauncherName() 2317 { 2318 return _launcher_name; 2319 } 2320 2321 jboolean 2322 IsJavaArgs() 2323 { 2324 return _is_java_args; 2325 } 2326 2327 static jboolean 2328 IsWildCardEnabled() 2329 { 2330 return _wc_enabled; 2331 } 2332 2333 int 2334 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 2335 int argc, char **argv, 2336 int mode, char *what, int ret) 2337 { 2338 if (threadStackSize == 0) { 2339 /* 2340 * If the user hasn't specified a non-zero stack size ask the JVM for its default. 2341 * A returned 0 means 'use the system default' for a platform, e.g., Windows. 2342 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 2343 * return its default stack size through the init args structure. 2344 */ 2345 struct JDK1_1InitArgs args1_1; 2346 memset((void*)&args1_1, 0, sizeof(args1_1)); 2347 args1_1.version = JNI_VERSION_1_1; 2348 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 2349 if (args1_1.javaStackSize > 0) { 2350 threadStackSize = args1_1.javaStackSize; 2351 } 2352 } 2353 2354 { /* Create a new thread to create JVM and invoke main method */ 2355 JavaMainArgs args; 2356 int rslt; 2357 2358 args.argc = argc; 2359 args.argv = argv; 2360 args.mode = mode; 2361 args.what = what; 2362 args.ifn = *ifn; 2363 2364 rslt = CallJavaMainInNewThread(threadStackSize, (void*)&args); 2365 /* If the caller has deemed there is an error we 2366 * simply return that, otherwise we return the value of 2367 * the callee 2368 */ 2369 return (ret != 0) ? ret : rslt; 2370 } 2371 } 2372 2373 static void 2374 DumpState() 2375 { 2376 if (!JLI_IsTraceLauncher()) return ; 2377 printf("Launcher state:\n"); 2378 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex()); 2379 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 2380 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 2381 printf("\tprogram name:%s\n", GetProgramName()); 2382 printf("\tlauncher name:%s\n", GetLauncherName()); 2383 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 2384 printf("\tfullversion:%s\n", GetFullVersion()); 2385 } 2386 2387 /* 2388 * A utility procedure to always print to stderr 2389 */ 2390 JNIEXPORT void JNICALL 2391 JLI_ReportMessage(const char* fmt, ...) 2392 { 2393 va_list vl; 2394 va_start(vl, fmt); 2395 vfprintf(stderr, fmt, vl); 2396 fprintf(stderr, "\n"); 2397 va_end(vl); 2398 } 2399 2400 /* 2401 * A utility procedure to always print to stdout 2402 */ 2403 void 2404 JLI_ShowMessage(const char* fmt, ...) 2405 { 2406 va_list vl; 2407 va_start(vl, fmt); 2408 vfprintf(stdout, fmt, vl); 2409 fprintf(stdout, "\n"); 2410 va_end(vl); 2411 }