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 /* set the -Dsun.java.launcher.* platform properties */ 342 SetJavaLauncherPlatformProps(); 343 344 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); 345 } 346 /* 347 * Always detach the main thread so that it appears to have ended when 348 * the application's main method exits. This will invoke the 349 * uncaught exception handler machinery if main threw an 350 * exception. An uncaught exception handler cannot change the 351 * launcher's return code except by calling System.exit. 352 * 353 * Wait for all non-daemon threads to end, then destroy the VM. 354 * This will actually create a trivial new Java waiter thread 355 * named "DestroyJavaVM", but this will be seen as a different 356 * thread from the one that executed main, even though they are 357 * the same C thread. This allows mainThread.join() and 358 * mainThread.isAlive() to work as expected. 359 */ 360 #define LEAVE() \ 361 do { \ 362 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \ 363 JLI_ReportErrorMessage(JVM_ERROR2); \ 364 ret = 1; \ 365 } \ 366 if (JNI_TRUE) { \ 367 (*vm)->DestroyJavaVM(vm); \ 368 return ret; \ 369 } \ 370 } while (JNI_FALSE) 371 372 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \ 373 do { \ 374 if ((*env)->ExceptionOccurred(env)) { \ 375 JLI_ReportExceptionDescription(env); \ 376 LEAVE(); \ 377 } \ 378 if ((CENL_exception) == NULL) { \ 379 JLI_ReportErrorMessage(JNI_ERROR); \ 380 LEAVE(); \ 381 } \ 382 } while (JNI_FALSE) 383 384 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \ 385 do { \ 386 if ((*env)->ExceptionOccurred(env)) { \ 387 JLI_ReportExceptionDescription(env); \ 388 ret = (CEL_return_value); \ 389 LEAVE(); \ 390 } \ 391 } while (JNI_FALSE) 392 393 394 int 395 JavaMain(void* _args) 396 { 397 JavaMainArgs *args = (JavaMainArgs *)_args; 398 int argc = args->argc; 399 char **argv = args->argv; 400 int mode = args->mode; 401 char *what = args->what; 402 InvocationFunctions ifn = args->ifn; 403 404 JavaVM *vm = 0; 405 JNIEnv *env = 0; 406 jclass mainClass = NULL; 407 jclass appClass = NULL; // actual application class being launched 408 jmethodID mainID; 409 jobjectArray mainArgs; 410 int ret = 0; 411 jlong start, end; 412 413 RegisterThread(); 414 415 /* Initialize the virtual machine */ 416 start = CounterGet(); 417 if (!InitializeJVM(&vm, &env, &ifn)) { 418 JLI_ReportErrorMessage(JVM_ERROR1); 419 exit(1); 420 } 421 422 if (showSettings != NULL) { 423 ShowSettings(env, showSettings); 424 CHECK_EXCEPTION_LEAVE(1); 425 } 426 427 // show resolved modules and continue 428 if (showResolvedModules) { 429 ShowResolvedModules(env); 430 CHECK_EXCEPTION_LEAVE(1); 431 } 432 433 // list observable modules, then exit 434 if (listModules) { 435 ListModules(env); 436 CHECK_EXCEPTION_LEAVE(1); 437 LEAVE(); 438 } 439 440 // describe a module, then exit 441 if (describeModule != NULL) { 442 DescribeModule(env, describeModule); 443 CHECK_EXCEPTION_LEAVE(1); 444 LEAVE(); 445 } 446 447 if (printVersion || showVersion) { 448 PrintJavaVersion(env, showVersion); 449 CHECK_EXCEPTION_LEAVE(0); 450 if (printVersion) { 451 LEAVE(); 452 } 453 } 454 455 // modules have been validated at startup so exit 456 if (validateModules) { 457 LEAVE(); 458 } 459 460 /* If the user specified neither a class name nor a JAR file */ 461 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 462 PrintUsage(env, printXUsage); 463 CHECK_EXCEPTION_LEAVE(1); 464 LEAVE(); 465 } 466 467 FreeKnownVMs(); /* after last possible PrintUsage */ 468 469 if (JLI_IsTraceLauncher()) { 470 end = CounterGet(); 471 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 472 (long)(jint)Counter2Micros(end-start)); 473 } 474 475 /* At this stage, argc/argv have the application's arguments */ 476 if (JLI_IsTraceLauncher()){ 477 int i; 478 printf("%s is '%s'\n", launchModeNames[mode], what); 479 printf("App's argc is %d\n", argc); 480 for (i=0; i < argc; i++) { 481 printf(" argv[%2d] = '%s'\n", i, argv[i]); 482 } 483 } 484 485 ret = 1; 486 487 /* 488 * Get the application's main class. It also checks if the main 489 * method exists. 490 * 491 * See bugid 5030265. The Main-Class name has already been parsed 492 * from the manifest, but not parsed properly for UTF-8 support. 493 * Hence the code here ignores the value previously extracted and 494 * uses the pre-existing code to reextract the value. This is 495 * possibly an end of release cycle expedient. However, it has 496 * also been discovered that passing some character sets through 497 * the environment has "strange" behavior on some variants of 498 * Windows. Hence, maybe the manifest parsing code local to the 499 * launcher should never be enhanced. 500 * 501 * Hence, future work should either: 502 * 1) Correct the local parsing code and verify that the 503 * Main-Class attribute gets properly passed through 504 * all environments, 505 * 2) Remove the vestages of maintaining main_class through 506 * the environment (and remove these comments). 507 * 508 * This method also correctly handles launching existing JavaFX 509 * applications that may or may not have a Main-Class manifest entry. 510 */ 511 mainClass = LoadMainClass(env, mode, what); 512 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 513 /* 514 * In some cases when launching an application that needs a helper, e.g., a 515 * JavaFX application with no main method, the mainClass will not be the 516 * applications own main class but rather a helper class. To keep things 517 * consistent in the UI we need to track and report the application main class. 518 */ 519 appClass = GetApplicationClass(env); 520 NULL_CHECK_RETURN_VALUE(appClass, -1); 521 522 /* Build platform specific argument array */ 523 mainArgs = CreateApplicationArgs(env, argv, argc); 524 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 525 526 if (dryRun) { 527 ret = 0; 528 LEAVE(); 529 } 530 531 /* 532 * PostJVMInit uses the class name as the application name for GUI purposes, 533 * for example, on OSX this sets the application name in the menu bar for 534 * both SWT and JavaFX. So we'll pass the actual application class here 535 * instead of mainClass as that may be a launcher or helper class instead 536 * of the application class. 537 */ 538 PostJVMInit(env, appClass, vm); 539 CHECK_EXCEPTION_LEAVE(1); 540 541 /* 542 * The LoadMainClass not only loads the main class, it will also ensure 543 * that the main method's signature is correct, therefore further checking 544 * is not required. The main method is invoked here so that extraneous java 545 * stacks are not in the application stack trace. 546 */ 547 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 548 "([Ljava/lang/String;)V"); 549 CHECK_EXCEPTION_NULL_LEAVE(mainID); 550 551 /* Invoke main method. */ 552 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 553 554 /* 555 * The launcher's exit code (in the absence of calls to 556 * System.exit) will be non-zero if main threw an exception. 557 */ 558 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 559 560 LEAVE(); 561 } 562 563 /* 564 * Test if the given name is one of the class path options. 565 */ 566 static jboolean 567 IsClassPathOption(const char* name) { 568 return JLI_StrCmp(name, "-classpath") == 0 || 569 JLI_StrCmp(name, "-cp") == 0 || 570 JLI_StrCmp(name, "--class-path") == 0; 571 } 572 573 /* 574 * Test if the given name is a launcher option taking the main entry point. 575 */ 576 static jboolean 577 IsLauncherMainOption(const char* name) { 578 return JLI_StrCmp(name, "--module") == 0 || 579 JLI_StrCmp(name, "-m") == 0; 580 } 581 582 /* 583 * Test if the given name is a white-space launcher option. 584 */ 585 static jboolean 586 IsLauncherOption(const char* name) { 587 return IsClassPathOption(name) || 588 IsLauncherMainOption(name) || 589 JLI_StrCmp(name, "--describe-module") == 0 || 590 JLI_StrCmp(name, "-d") == 0 || 591 JLI_StrCmp(name, "--source") == 0; 592 } 593 594 /* 595 * Test if the given name is a module-system white-space option that 596 * will be passed to the VM with its corresponding long-form option 597 * name and "=" delimiter. 598 */ 599 static jboolean 600 IsModuleOption(const char* name) { 601 return JLI_StrCmp(name, "--module-path") == 0 || 602 JLI_StrCmp(name, "-p") == 0 || 603 JLI_StrCmp(name, "--upgrade-module-path") == 0 || 604 JLI_StrCmp(name, "--add-modules") == 0 || 605 JLI_StrCmp(name, "--limit-modules") == 0 || 606 JLI_StrCmp(name, "--add-exports") == 0 || 607 JLI_StrCmp(name, "--add-opens") == 0 || 608 JLI_StrCmp(name, "--add-reads") == 0 || 609 JLI_StrCmp(name, "--patch-module") == 0; 610 } 611 612 static jboolean 613 IsLongFormModuleOption(const char* name) { 614 return JLI_StrCCmp(name, "--module-path=") == 0 || 615 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 || 616 JLI_StrCCmp(name, "--add-modules=") == 0 || 617 JLI_StrCCmp(name, "--limit-modules=") == 0 || 618 JLI_StrCCmp(name, "--add-exports=") == 0 || 619 JLI_StrCCmp(name, "--add-reads=") == 0 || 620 JLI_StrCCmp(name, "--patch-module=") == 0; 621 } 622 623 /* 624 * Test if the given name has a white space option. 625 */ 626 jboolean 627 IsWhiteSpaceOption(const char* name) { 628 return IsModuleOption(name) || 629 IsLauncherOption(name); 630 } 631 632 /* 633 * Check if it is OK to set the mode. 634 * If the mode was previously set, and should not be changed, 635 * a fatal error is reported. 636 */ 637 static int 638 checkMode(int mode, int newMode, const char *arg) { 639 if (mode == LM_SOURCE) { 640 JLI_ReportErrorMessage(ARG_ERROR14, arg); 641 exit(1); 642 } 643 return newMode; 644 } 645 646 /* 647 * Test if an arg identifies a source file. 648 */ 649 jboolean 650 IsSourceFile(const char *arg) { 651 struct stat st; 652 return (JLI_HasSuffix(arg, ".java") && stat(arg, &st) == 0); 653 } 654 655 /* 656 * Checks the command line options to find which JVM type was 657 * specified. If no command line option was given for the JVM type, 658 * the default type is used. The environment variable 659 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 660 * checked as ways of specifying which JVM type to invoke. 661 */ 662 char * 663 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 664 int i, argi; 665 int argc; 666 char **newArgv; 667 int newArgvIdx = 0; 668 int isVMType; 669 int jvmidx = -1; 670 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 671 672 argc = *pargc; 673 674 /* To make things simpler we always copy the argv array */ 675 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 676 677 /* The program name is always present */ 678 newArgv[newArgvIdx++] = (*argv)[0]; 679 680 for (argi = 1; argi < argc; argi++) { 681 char *arg = (*argv)[argi]; 682 isVMType = 0; 683 684 if (IsJavaArgs()) { 685 if (arg[0] != '-') { 686 newArgv[newArgvIdx++] = arg; 687 continue; 688 } 689 } else { 690 if (IsWhiteSpaceOption(arg)) { 691 newArgv[newArgvIdx++] = arg; 692 argi++; 693 if (argi < argc) { 694 newArgv[newArgvIdx++] = (*argv)[argi]; 695 } 696 continue; 697 } 698 if (arg[0] != '-') break; 699 } 700 701 /* Did the user pass an explicit VM type? */ 702 i = KnownVMIndex(arg); 703 if (i >= 0) { 704 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 705 isVMType = 1; 706 *pargc = *pargc - 1; 707 } 708 709 /* Did the user specify an "alternate" VM? */ 710 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 711 isVMType = 1; 712 jvmtype = arg+((arg[1]=='X')? 10 : 12); 713 jvmidx = -1; 714 } 715 716 if (!isVMType) { 717 newArgv[newArgvIdx++] = arg; 718 } 719 } 720 721 /* 722 * Finish copying the arguments if we aborted the above loop. 723 * NOTE that if we aborted via "break" then we did NOT copy the 724 * last argument above, and in addition argi will be less than 725 * argc. 726 */ 727 while (argi < argc) { 728 newArgv[newArgvIdx++] = (*argv)[argi]; 729 argi++; 730 } 731 732 /* argv is null-terminated */ 733 newArgv[newArgvIdx] = 0; 734 735 /* Copy back argv */ 736 *argv = newArgv; 737 *pargc = newArgvIdx; 738 739 /* use the default VM type if not specified (no alias processing) */ 740 if (jvmtype == NULL) { 741 char* result = knownVMs[0].name+1; 742 JLI_TraceLauncher("Default VM: %s\n", result); 743 return result; 744 } 745 746 /* if using an alternate VM, no alias processing */ 747 if (jvmidx < 0) 748 return jvmtype; 749 750 /* Resolve aliases first */ 751 { 752 int loopCount = 0; 753 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 754 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 755 756 if (loopCount > knownVMsCount) { 757 if (!speculative) { 758 JLI_ReportErrorMessage(CFG_ERROR1); 759 exit(1); 760 } else { 761 return "ERROR"; 762 /* break; */ 763 } 764 } 765 766 if (nextIdx < 0) { 767 if (!speculative) { 768 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 769 exit(1); 770 } else { 771 return "ERROR"; 772 } 773 } 774 jvmidx = nextIdx; 775 jvmtype = knownVMs[jvmidx].name+1; 776 loopCount++; 777 } 778 } 779 780 switch (knownVMs[jvmidx].flag) { 781 case VM_WARN: 782 if (!speculative) { 783 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 784 } 785 /* fall through */ 786 case VM_IGNORE: 787 jvmtype = knownVMs[jvmidx=0].name + 1; 788 /* fall through */ 789 case VM_KNOWN: 790 break; 791 case VM_ERROR: 792 if (!speculative) { 793 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 794 exit(1); 795 } else { 796 return "ERROR"; 797 } 798 } 799 800 return jvmtype; 801 } 802 803 /* 804 * This method must be called before the VM is loaded, primarily 805 * used to parse and set any VM related options or env variables. 806 * This function is non-destructive leaving the argument list intact. 807 */ 808 static void 809 SetJvmEnvironment(int argc, char **argv) { 810 811 static const char* NMT_Env_Name = "NMT_LEVEL_"; 812 int i; 813 /* process only the launcher arguments */ 814 for (i = 0; i < argc; i++) { 815 char *arg = argv[i]; 816 /* 817 * Since this must be a VM flag we stop processing once we see 818 * an argument the launcher would not have processed beyond (such 819 * as -version or -h), or an argument that indicates the following 820 * arguments are for the application (i.e. the main class name, or 821 * the -jar argument). 822 */ 823 if (i > 0) { 824 char *prev = argv[i - 1]; 825 // skip non-dash arg preceded by class path specifiers 826 if (*arg != '-' && IsWhiteSpaceOption(prev)) { 827 continue; 828 } 829 830 if (*arg != '-' || isTerminalOpt(arg)) { 831 return; 832 } 833 } 834 /* 835 * The following case checks for "-XX:NativeMemoryTracking=value". 836 * If value is non null, an environmental variable set to this value 837 * will be created to be used by the JVM. 838 * The argument is passed to the JVM, which will check validity. 839 * The JVM is responsible for removing the env variable. 840 */ 841 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { 842 int retval; 843 // get what follows this parameter, include "=" 844 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); 845 if (JLI_StrLen(arg) > pnlen) { 846 char* value = arg + pnlen; 847 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits 848 849 /* 850 * ensures that malloc successful 851 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call 852 * that could store the address. 853 */ 854 char * pbuf = (char*)JLI_MemAlloc(pbuflen); 855 856 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); 857 retval = JLI_PutEnv(pbuf); 858 if (JLI_IsTraceLauncher()) { 859 char* envName; 860 char* envBuf; 861 862 // ensures that malloc successful 863 envName = (char*)JLI_MemAlloc(pbuflen); 864 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); 865 866 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); 867 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); 868 envBuf = getenv(envName); 869 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); 870 free(envName); 871 } 872 } 873 } 874 } 875 } 876 877 /* copied from HotSpot function "atomll()" */ 878 static int 879 parse_size(const char *s, jlong *result) { 880 jlong n = 0; 881 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n); 882 if (args_read != 1) { 883 return 0; 884 } 885 while (*s != '\0' && *s >= '0' && *s <= '9') { 886 s++; 887 } 888 // 4705540: illegal if more characters are found after the first non-digit 889 if (JLI_StrLen(s) > 1) { 890 return 0; 891 } 892 switch (*s) { 893 case 'T': case 't': 894 *result = n * GB * KB; 895 return 1; 896 case 'G': case 'g': 897 *result = n * GB; 898 return 1; 899 case 'M': case 'm': 900 *result = n * MB; 901 return 1; 902 case 'K': case 'k': 903 *result = n * KB; 904 return 1; 905 case '\0': 906 *result = n; 907 return 1; 908 default: 909 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 910 return 0; 911 } 912 } 913 914 /* 915 * Adds a new VM option with the given name and value. 916 */ 917 void 918 AddOption(char *str, void *info) 919 { 920 /* 921 * Expand options array if needed to accommodate at least one more 922 * VM option. 923 */ 924 if (numOptions >= maxOptions) { 925 if (options == 0) { 926 maxOptions = 4; 927 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 928 } else { 929 JavaVMOption *tmp; 930 maxOptions *= 2; 931 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 932 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 933 JLI_MemFree(options); 934 options = tmp; 935 } 936 } 937 options[numOptions].optionString = str; 938 options[numOptions++].extraInfo = info; 939 940 /* 941 * -Xss is used both by the JVM and here to establish the stack size of the thread 942 * created to launch the JVM. In the latter case we need to ensure we don't go 943 * below the minimum stack size allowed. If -Xss is zero that tells the JVM to use 944 * 'default' sizes (either from JVM or system configuration, e.g. 'ulimit -s' on linux), 945 * and is not itself a small stack size that will be rejected. So we ignore -Xss0 here. 946 */ 947 if (JLI_StrCCmp(str, "-Xss") == 0) { 948 jlong tmp; 949 if (parse_size(str + 4, &tmp)) { 950 threadStackSize = tmp; 951 if (threadStackSize > 0 && threadStackSize < (jlong)STACK_SIZE_MINIMUM) { 952 threadStackSize = STACK_SIZE_MINIMUM; 953 } 954 } 955 } 956 957 if (JLI_StrCCmp(str, "-Xmx") == 0) { 958 jlong tmp; 959 if (parse_size(str + 4, &tmp)) { 960 maxHeapSize = tmp; 961 } 962 } 963 964 if (JLI_StrCCmp(str, "-Xms") == 0) { 965 jlong tmp; 966 if (parse_size(str + 4, &tmp)) { 967 initialHeapSize = tmp; 968 } 969 } 970 } 971 972 static void 973 SetClassPath(const char *s) 974 { 975 char *def; 976 const char *orig = s; 977 static const char format[] = "-Djava.class.path=%s"; 978 /* 979 * usually we should not get a null pointer, but there are cases where 980 * we might just get one, in which case we simply ignore it, and let the 981 * caller deal with it 982 */ 983 if (s == NULL) 984 return; 985 s = JLI_WildcardExpandClasspath(s); 986 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 987 // s is became corrupted after expanding wildcards 988 return; 989 def = JLI_MemAlloc(sizeof(format) 990 - 2 /* strlen("%s") */ 991 + JLI_StrLen(s)); 992 sprintf(def, format, s); 993 AddOption(def, NULL); 994 if (s != orig) 995 JLI_MemFree((char *) s); 996 _have_classpath = JNI_TRUE; 997 } 998 999 static void 1000 AddLongFormOption(const char *option, const char *arg) 1001 { 1002 static const char format[] = "%s=%s"; 1003 char *def; 1004 size_t def_len; 1005 1006 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1; 1007 def = JLI_MemAlloc(def_len); 1008 JLI_Snprintf(def, def_len, format, option, arg); 1009 AddOption(def, NULL); 1010 } 1011 1012 static void 1013 SetMainModule(const char *s) 1014 { 1015 static const char format[] = "-Djdk.module.main=%s"; 1016 char* slash = JLI_StrChr(s, '/'); 1017 size_t s_len, def_len; 1018 char *def; 1019 1020 /* value may be <module> or <module>/<mainclass> */ 1021 if (slash == NULL) { 1022 s_len = JLI_StrLen(s); 1023 } else { 1024 s_len = (size_t) (slash - s); 1025 } 1026 def_len = sizeof(format) 1027 - 2 /* strlen("%s") */ 1028 + s_len; 1029 def = JLI_MemAlloc(def_len); 1030 JLI_Snprintf(def, def_len, format, s); 1031 AddOption(def, NULL); 1032 } 1033 1034 /* 1035 * The SelectVersion() routine ensures that an appropriate version of 1036 * the JRE is running. The specification for the appropriate version 1037 * is obtained from either the manifest of a jar file (preferred) or 1038 * from command line options. 1039 * The routine also parses splash screen command line options and 1040 * passes on their values in private environment variables. 1041 */ 1042 static void 1043 SelectVersion(int argc, char **argv, char **main_class) 1044 { 1045 char *arg; 1046 char *operand; 1047 char *version = NULL; 1048 char *jre = NULL; 1049 int jarflag = 0; 1050 int headlessflag = 0; 1051 int restrict_search = -1; /* -1 implies not known */ 1052 manifest_info info; 1053 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 1054 char *splash_file_name = NULL; 1055 char *splash_jar_name = NULL; 1056 char *env_in; 1057 int res; 1058 jboolean has_arg; 1059 1060 /* 1061 * If the version has already been selected, set *main_class 1062 * with the value passed through the environment (if any) and 1063 * simply return. 1064 */ 1065 1066 /* 1067 * This environmental variable can be set by mJRE capable JREs 1068 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been 1069 * stripped by those JREs. This environmental variable allows 1.9+ 1070 * JREs to be started by these mJRE capable JREs. 1071 * Note that mJRE directives in the jar manifest file would have been 1072 * ignored for a JRE started by another JRE... 1073 * .. skipped for JRE 1.5 and beyond. 1074 * .. not even checked for pre 1.5. 1075 */ 1076 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 1077 if (*env_in != '\0') 1078 *main_class = JLI_StringDup(env_in); 1079 return; 1080 } 1081 1082 /* 1083 * Scan through the arguments for options relevant to multiple JRE 1084 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8. 1085 * 1086 * This capability is no longer available with JRE versions 1.9 and later. 1087 * These command line options are reported as errors. 1088 */ 1089 1090 argc--; 1091 argv++; 1092 while ((arg = *argv) != 0 && *arg == '-') { 1093 has_arg = IsOptionWithArgument(argc, argv); 1094 if (JLI_StrCCmp(arg, "-version:") == 0) { 1095 JLI_ReportErrorMessage(SPC_ERROR1); 1096 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 1097 JLI_ReportErrorMessage(SPC_ERROR2); 1098 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) { 1099 JLI_ReportErrorMessage(SPC_ERROR2); 1100 } else { 1101 if (JLI_StrCmp(arg, "-jar") == 0) 1102 jarflag = 1; 1103 if (IsWhiteSpaceOption(arg)) { 1104 if (has_arg) { 1105 argc--; 1106 argv++; 1107 arg = *argv; 1108 } 1109 } 1110 1111 /* 1112 * Checking for headless toolkit option in the some way as AWT does: 1113 * "true" means true and any other value means false 1114 */ 1115 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 1116 headlessflag = 1; 1117 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 1118 headlessflag = 0; 1119 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1120 splash_file_name = arg+8; 1121 } 1122 } 1123 argc--; 1124 argv++; 1125 } 1126 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 1127 operand = NULL; 1128 } else { 1129 argc--; 1130 operand = *argv++; 1131 } 1132 1133 /* 1134 * If there is a jar file, read the manifest. If the jarfile can't be 1135 * read, the manifest can't be read from the jar file, or the manifest 1136 * is corrupt, issue the appropriate error messages and exit. 1137 * 1138 * Even if there isn't a jar file, construct a manifest_info structure 1139 * containing the command line information. It's a convenient way to carry 1140 * this data around. 1141 */ 1142 if (jarflag && operand) { 1143 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 1144 if (res == -1) 1145 JLI_ReportErrorMessage(JAR_ERROR2, operand); 1146 else 1147 JLI_ReportErrorMessage(JAR_ERROR3, operand); 1148 exit(1); 1149 } 1150 1151 /* 1152 * Command line splash screen option should have precedence 1153 * over the manifest, so the manifest data is used only if 1154 * splash_file_name has not been initialized above during command 1155 * line parsing 1156 */ 1157 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 1158 splash_file_name = info.splashscreen_image_file_name; 1159 splash_jar_name = operand; 1160 } 1161 } else { 1162 info.manifest_version = NULL; 1163 info.main_class = NULL; 1164 info.jre_version = NULL; 1165 info.jre_restrict_search = 0; 1166 } 1167 1168 /* 1169 * Passing on splash screen info in environment variables 1170 */ 1171 if (splash_file_name && !headlessflag) { 1172 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 1173 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1174 JLI_StrCat(splash_file_entry, splash_file_name); 1175 putenv(splash_file_entry); 1176 } 1177 if (splash_jar_name && !headlessflag) { 1178 splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 1179 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 1180 JLI_StrCat(splash_jar_entry, splash_jar_name); 1181 putenv(splash_jar_entry); 1182 } 1183 1184 1185 /* 1186 * "Valid" returns (other than unrecoverable errors) follow. Set 1187 * main_class as a side-effect of this routine. 1188 */ 1189 if (info.main_class != NULL) 1190 *main_class = JLI_StringDup(info.main_class); 1191 1192 if (info.jre_version == NULL) { 1193 JLI_FreeManifest(); 1194 return; 1195 } 1196 1197 } 1198 1199 /* 1200 * Test if the current argv is an option, i.e. with a leading `-` 1201 * and followed with an argument without a leading `-`. 1202 */ 1203 static jboolean 1204 IsOptionWithArgument(int argc, char** argv) { 1205 char* option; 1206 char* arg; 1207 1208 if (argc <= 1) 1209 return JNI_FALSE; 1210 1211 option = *argv; 1212 arg = *(argv+1); 1213 return *option == '-' && *arg != '-'; 1214 } 1215 1216 /* 1217 * Gets the option, and its argument if the option has an argument. 1218 * It will update *pargc, **pargv to the next option. 1219 */ 1220 static int 1221 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) { 1222 int argc = *pargc; 1223 char** argv = *pargv; 1224 char* arg = *argv; 1225 1226 char* option = arg; 1227 char* value = NULL; 1228 char* equals = NULL; 1229 int kind = LAUNCHER_OPTION; 1230 jboolean has_arg = JNI_FALSE; 1231 1232 // check if this option may be a white-space option with an argument 1233 has_arg = IsOptionWithArgument(argc, argv); 1234 1235 argv++; --argc; 1236 if (IsLauncherOption(arg)) { 1237 if (has_arg) { 1238 value = *argv; 1239 argv++; --argc; 1240 } 1241 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION 1242 : LAUNCHER_OPTION_WITH_ARGUMENT; 1243 } else if (IsModuleOption(arg)) { 1244 kind = VM_LONG_OPTION_WITH_ARGUMENT; 1245 if (has_arg) { 1246 value = *argv; 1247 argv++; --argc; 1248 } 1249 1250 /* 1251 * Support short form alias 1252 */ 1253 if (JLI_StrCmp(arg, "-p") == 0) { 1254 option = "--module-path"; 1255 } 1256 1257 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) { 1258 value = equals+1; 1259 if (JLI_StrCCmp(arg, "--describe-module=") == 0 || 1260 JLI_StrCCmp(arg, "--module=") == 0 || 1261 JLI_StrCCmp(arg, "--class-path=") == 0|| 1262 JLI_StrCCmp(arg, "--source=") == 0) { 1263 kind = LAUNCHER_OPTION_WITH_ARGUMENT; 1264 } else { 1265 kind = VM_LONG_OPTION; 1266 } 1267 } 1268 1269 *pargc = argc; 1270 *pargv = argv; 1271 *poption = option; 1272 *pvalue = value; 1273 return kind; 1274 } 1275 1276 /* 1277 * Parses command line arguments. Returns JNI_FALSE if launcher 1278 * should exit without starting vm, returns JNI_TRUE if vm needs 1279 * to be started to process given options. *pret (the launcher 1280 * process return value) is set to 0 for a normal exit. 1281 */ 1282 static jboolean 1283 ParseArguments(int *pargc, char ***pargv, 1284 int *pmode, char **pwhat, 1285 int *pret, const char *jrepath) 1286 { 1287 int argc = *pargc; 1288 char **argv = *pargv; 1289 int mode = LM_UNKNOWN; 1290 char *arg; 1291 1292 *pret = 0; 1293 1294 while ((arg = *argv) != 0 && *arg == '-') { 1295 char *option = NULL; 1296 char *value = NULL; 1297 int kind = GetOpt(&argc, &argv, &option, &value); 1298 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0; 1299 jboolean has_arg_any_len = value != NULL; 1300 1301 /* 1302 * Option to set main entry point 1303 */ 1304 if (JLI_StrCmp(arg, "-jar") == 0) { 1305 ARG_CHECK(argc, ARG_ERROR2, arg); 1306 mode = checkMode(mode, LM_JAR, arg); 1307 } else if (JLI_StrCmp(arg, "--module") == 0 || 1308 JLI_StrCCmp(arg, "--module=") == 0 || 1309 JLI_StrCmp(arg, "-m") == 0) { 1310 REPORT_ERROR (has_arg, ARG_ERROR5, arg); 1311 SetMainModule(value); 1312 mode = checkMode(mode, LM_MODULE, arg); 1313 if (has_arg) { 1314 *pwhat = value; 1315 break; 1316 } 1317 } else if (JLI_StrCmp(arg, "--source") == 0 || 1318 JLI_StrCCmp(arg, "--source=") == 0) { 1319 REPORT_ERROR (has_arg, ARG_ERROR13, arg); 1320 mode = LM_SOURCE; 1321 if (has_arg) { 1322 const char *prop = "-Djdk.internal.javac.source="; 1323 size_t size = JLI_StrLen(prop) + JLI_StrLen(value) + 1; 1324 char *propValue = (char *)JLI_MemAlloc(size); 1325 JLI_Snprintf(propValue, size, "%s%s", prop, value); 1326 AddOption(propValue, NULL); 1327 } 1328 } else if (JLI_StrCmp(arg, "--class-path") == 0 || 1329 JLI_StrCCmp(arg, "--class-path=") == 0 || 1330 JLI_StrCmp(arg, "-classpath") == 0 || 1331 JLI_StrCmp(arg, "-cp") == 0) { 1332 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg); 1333 SetClassPath(value); 1334 if (mode != LM_SOURCE) { 1335 mode = LM_CLASS; 1336 } 1337 } else if (JLI_StrCmp(arg, "--list-modules") == 0) { 1338 listModules = JNI_TRUE; 1339 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) { 1340 showResolvedModules = JNI_TRUE; 1341 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) { 1342 AddOption("-Djdk.module.validation=true", NULL); 1343 validateModules = JNI_TRUE; 1344 } else if (JLI_StrCmp(arg, "--describe-module") == 0 || 1345 JLI_StrCCmp(arg, "--describe-module=") == 0 || 1346 JLI_StrCmp(arg, "-d") == 0) { 1347 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg); 1348 describeModule = value; 1349 /* 1350 * Parse white-space options 1351 */ 1352 } else if (has_arg) { 1353 if (kind == VM_LONG_OPTION) { 1354 AddOption(option, NULL); 1355 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) { 1356 AddLongFormOption(option, value); 1357 } 1358 /* 1359 * Error missing argument 1360 */ 1361 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 || 1362 JLI_StrCmp(arg, "-p") == 0 || 1363 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) { 1364 REPORT_ERROR (has_arg, ARG_ERROR4, arg); 1365 1366 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) { 1367 REPORT_ERROR (has_arg, ARG_ERROR6, arg); 1368 /* 1369 * The following cases will cause the argument parsing to stop 1370 */ 1371 } else if (JLI_StrCmp(arg, "-help") == 0 || 1372 JLI_StrCmp(arg, "-h") == 0 || 1373 JLI_StrCmp(arg, "-?") == 0) { 1374 printUsage = JNI_TRUE; 1375 return JNI_TRUE; 1376 } else if (JLI_StrCmp(arg, "--help") == 0) { 1377 printUsage = JNI_TRUE; 1378 printTo = USE_STDOUT; 1379 return JNI_TRUE; 1380 } else if (JLI_StrCmp(arg, "-version") == 0) { 1381 printVersion = JNI_TRUE; 1382 return JNI_TRUE; 1383 } else if (JLI_StrCmp(arg, "--version") == 0) { 1384 printVersion = JNI_TRUE; 1385 printTo = USE_STDOUT; 1386 return JNI_TRUE; 1387 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1388 showVersion = JNI_TRUE; 1389 } else if (JLI_StrCmp(arg, "--show-version") == 0) { 1390 showVersion = JNI_TRUE; 1391 printTo = USE_STDOUT; 1392 } else if (JLI_StrCmp(arg, "--dry-run") == 0) { 1393 dryRun = JNI_TRUE; 1394 } else if (JLI_StrCmp(arg, "-X") == 0) { 1395 printXUsage = JNI_TRUE; 1396 return JNI_TRUE; 1397 } else if (JLI_StrCmp(arg, "--help-extra") == 0) { 1398 printXUsage = JNI_TRUE; 1399 printTo = USE_STDOUT; 1400 return JNI_TRUE; 1401 /* 1402 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1403 * In the latter case, any SUBOPT value not recognized will default to "all" 1404 */ 1405 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1406 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1407 showSettings = arg; 1408 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1409 AddOption("-Dsun.java.launcher.diag=true", NULL); 1410 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) { 1411 AddOption("-Djdk.module.showModuleResolution=true", NULL); 1412 /* 1413 * The following case provide backward compatibility with old-style 1414 * command line options. 1415 */ 1416 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1417 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1418 return JNI_FALSE; 1419 } else if (JLI_StrCmp(arg, "--full-version") == 0) { 1420 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion()); 1421 return JNI_FALSE; 1422 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1423 AddOption("-verbose:gc", NULL); 1424 } else if (JLI_StrCmp(arg, "-t") == 0) { 1425 AddOption("-Xt", NULL); 1426 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1427 AddOption("-Xtm", NULL); 1428 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1429 AddOption("-Xdebug", NULL); 1430 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1431 AddOption("-Xnoclassgc", NULL); 1432 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1433 JLI_ReportErrorMessage(ARG_DEPRECATED, "-Xfuture"); 1434 AddOption("-Xverify:all", NULL); 1435 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1436 AddOption("-Xverify:all", NULL); 1437 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1438 AddOption("-Xverify:remote", NULL); 1439 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1440 /* 1441 * Note that no 'deprecated' message is needed here because the VM 1442 * issues 'deprecated' messages for -noverify and -Xverify:none. 1443 */ 1444 AddOption("-Xverify:none", NULL); 1445 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1446 JLI_StrCCmp(arg, "-oss") == 0 || 1447 JLI_StrCCmp(arg, "-ms") == 0 || 1448 JLI_StrCCmp(arg, "-mx") == 0) { 1449 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1450 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1451 AddOption(tmp, NULL); 1452 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1453 JLI_StrCmp(arg, "-cs") == 0 || 1454 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1455 /* No longer supported */ 1456 JLI_ReportErrorMessage(ARG_WARN, arg); 1457 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1458 ; /* Ignore machine independent options already handled */ 1459 } else if (ProcessPlatformOption(arg)) { 1460 ; /* Processing of platform dependent options */ 1461 } else { 1462 /* java.class.path set on the command line */ 1463 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) { 1464 _have_classpath = JNI_TRUE; 1465 } 1466 AddOption(arg, NULL); 1467 } 1468 } 1469 1470 if (*pwhat == NULL && --argc >= 0) { 1471 *pwhat = *argv++; 1472 } 1473 1474 if (*pwhat == NULL) { 1475 /* LM_UNKNOWN okay for options that exit */ 1476 if (!listModules && !describeModule && !validateModules) { 1477 *pret = 1; 1478 } 1479 } else if (mode == LM_UNKNOWN) { 1480 /* default to LM_CLASS if -m, -jar and -cp options are 1481 * not specified */ 1482 if (!_have_classpath) { 1483 SetClassPath("."); 1484 } 1485 mode = IsSourceFile(arg) ? LM_SOURCE : LM_CLASS; 1486 } else if (mode == LM_CLASS && IsSourceFile(arg)) { 1487 /* override LM_CLASS mode if given a source file */ 1488 mode = LM_SOURCE; 1489 } 1490 1491 if (mode == LM_SOURCE) { 1492 AddOption("--add-modules=ALL-DEFAULT", NULL); 1493 *pwhat = SOURCE_LAUNCHER_MAIN_ENTRY; 1494 // adjust (argc, argv) so that the name of the source file 1495 // is included in the args passed to the source launcher 1496 // main entry class 1497 *pargc = argc + 1; 1498 *pargv = argv - 1; 1499 } else { 1500 if (argc >= 0) { 1501 *pargc = argc; 1502 *pargv = argv; 1503 } 1504 } 1505 1506 *pmode = mode; 1507 1508 return JNI_TRUE; 1509 } 1510 1511 /* 1512 * Initializes the Java Virtual Machine. Also frees options array when 1513 * finished. 1514 */ 1515 static jboolean 1516 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1517 { 1518 JavaVMInitArgs args; 1519 jint r; 1520 1521 memset(&args, 0, sizeof(args)); 1522 args.version = JNI_VERSION_1_2; 1523 args.nOptions = numOptions; 1524 args.options = options; 1525 args.ignoreUnrecognized = JNI_FALSE; 1526 1527 if (JLI_IsTraceLauncher()) { 1528 int i = 0; 1529 printf("JavaVM args:\n "); 1530 printf("version 0x%08lx, ", (long)args.version); 1531 printf("ignoreUnrecognized is %s, ", 1532 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1533 printf("nOptions is %ld\n", (long)args.nOptions); 1534 for (i = 0; i < numOptions; i++) 1535 printf(" option[%2d] = '%s'\n", 1536 i, args.options[i].optionString); 1537 } 1538 1539 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1540 JLI_MemFree(options); 1541 return r == JNI_OK; 1542 } 1543 1544 static jclass helperClass = NULL; 1545 1546 jclass 1547 GetLauncherHelperClass(JNIEnv *env) 1548 { 1549 if (helperClass == NULL) { 1550 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1551 "sun/launcher/LauncherHelper")); 1552 } 1553 return helperClass; 1554 } 1555 1556 static jmethodID makePlatformStringMID = NULL; 1557 /* 1558 * Returns a new Java string object for the specified platform string. 1559 */ 1560 static jstring 1561 NewPlatformString(JNIEnv *env, char *s) 1562 { 1563 int len = (int)JLI_StrLen(s); 1564 jbyteArray ary; 1565 jclass cls = GetLauncherHelperClass(env); 1566 NULL_CHECK0(cls); 1567 if (s == NULL) 1568 return 0; 1569 1570 ary = (*env)->NewByteArray(env, len); 1571 if (ary != 0) { 1572 jstring str = 0; 1573 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1574 if (!(*env)->ExceptionOccurred(env)) { 1575 if (makePlatformStringMID == NULL) { 1576 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1577 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1578 } 1579 str = (*env)->CallStaticObjectMethod(env, cls, 1580 makePlatformStringMID, USE_STDERR, ary); 1581 CHECK_EXCEPTION_RETURN_VALUE(0); 1582 (*env)->DeleteLocalRef(env, ary); 1583 return str; 1584 } 1585 } 1586 return 0; 1587 } 1588 1589 /* 1590 * Returns a new array of Java string objects for the specified 1591 * array of platform strings. 1592 */ 1593 jobjectArray 1594 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1595 { 1596 jarray cls; 1597 jarray ary; 1598 int i; 1599 1600 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1601 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1602 CHECK_EXCEPTION_RETURN_VALUE(0); 1603 for (i = 0; i < strc; i++) { 1604 jstring str = NewPlatformString(env, *strv++); 1605 NULL_CHECK0(str); 1606 (*env)->SetObjectArrayElement(env, ary, i, str); 1607 (*env)->DeleteLocalRef(env, str); 1608 } 1609 return ary; 1610 } 1611 1612 /* 1613 * Loads a class and verifies that the main class is present and it is ok to 1614 * call it for more details refer to the java implementation. 1615 */ 1616 static jclass 1617 LoadMainClass(JNIEnv *env, int mode, char *name) 1618 { 1619 jmethodID mid; 1620 jstring str; 1621 jobject result; 1622 jlong start, end; 1623 jclass cls = GetLauncherHelperClass(env); 1624 NULL_CHECK0(cls); 1625 if (JLI_IsTraceLauncher()) { 1626 start = CounterGet(); 1627 } 1628 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1629 "checkAndLoadMain", 1630 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1631 1632 NULL_CHECK0(str = NewPlatformString(env, name)); 1633 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1634 USE_STDERR, mode, str)); 1635 1636 if (JLI_IsTraceLauncher()) { 1637 end = CounterGet(); 1638 printf("%ld micro seconds to load main class\n", 1639 (long)(jint)Counter2Micros(end-start)); 1640 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1641 } 1642 1643 return (jclass)result; 1644 } 1645 1646 static jclass 1647 GetApplicationClass(JNIEnv *env) 1648 { 1649 jmethodID mid; 1650 jclass appClass; 1651 jclass cls = GetLauncherHelperClass(env); 1652 NULL_CHECK0(cls); 1653 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1654 "getApplicationClass", 1655 "()Ljava/lang/Class;")); 1656 1657 appClass = (*env)->CallStaticObjectMethod(env, cls, mid); 1658 CHECK_EXCEPTION_RETURN_VALUE(0); 1659 return appClass; 1660 } 1661 1662 static char* expandWildcardOnLongOpt(char* arg) { 1663 char *p, *value; 1664 size_t optLen, valueLen; 1665 p = JLI_StrChr(arg, '='); 1666 1667 if (p == NULL || p[1] == '\0') { 1668 JLI_ReportErrorMessage(ARG_ERROR1, arg); 1669 exit(1); 1670 } 1671 p++; 1672 value = (char *) JLI_WildcardExpandClasspath(p); 1673 if (p == value) { 1674 // no wildcard 1675 return arg; 1676 } 1677 1678 optLen = p - arg; 1679 valueLen = JLI_StrLen(value); 1680 p = JLI_MemAlloc(optLen + valueLen + 1); 1681 memcpy(p, arg, optLen); 1682 memcpy(p + optLen, value, valueLen); 1683 p[optLen + valueLen] = '\0'; 1684 return p; 1685 } 1686 1687 /* 1688 * For tools, convert command line args thus: 1689 * javac -cp foo:foo/"*" -J-ms32m ... 1690 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1691 * 1692 * Takes 4 parameters, and returns the populated arguments 1693 */ 1694 static void 1695 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1696 { 1697 int argc = *pargc; 1698 char **argv = *pargv; 1699 int nargc = argc + jargc; 1700 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1701 int i; 1702 1703 *pargc = nargc; 1704 *pargv = nargv; 1705 1706 /* Copy the VM arguments (i.e. prefixed with -J) */ 1707 for (i = 0; i < jargc; i++) { 1708 const char *arg = jargv[i]; 1709 if (arg[0] == '-' && arg[1] == 'J') { 1710 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1711 } 1712 } 1713 1714 for (i = 0; i < argc; i++) { 1715 char *arg = argv[i]; 1716 if (arg[0] == '-' && arg[1] == 'J') { 1717 if (arg[2] == '\0') { 1718 JLI_ReportErrorMessage(ARG_ERROR3); 1719 exit(1); 1720 } 1721 *nargv++ = arg + 2; 1722 } 1723 } 1724 1725 /* Copy the rest of the arguments */ 1726 for (i = 0; i < jargc ; i++) { 1727 const char *arg = jargv[i]; 1728 if (arg[0] != '-' || arg[1] != 'J') { 1729 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1730 } 1731 } 1732 for (i = 0; i < argc; i++) { 1733 char *arg = argv[i]; 1734 if (arg[0] == '-') { 1735 if (arg[1] == 'J') 1736 continue; 1737 if (IsWildCardEnabled()) { 1738 if (IsClassPathOption(arg) && i < argc - 1) { 1739 *nargv++ = arg; 1740 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1741 i++; 1742 continue; 1743 } 1744 if (JLI_StrCCmp(arg, "--class-path=") == 0) { 1745 *nargv++ = expandWildcardOnLongOpt(arg); 1746 continue; 1747 } 1748 } 1749 } 1750 *nargv++ = arg; 1751 } 1752 *nargv = 0; 1753 } 1754 1755 /* 1756 * For our tools, we try to add 3 VM options: 1757 * -Denv.class.path=<envcp> 1758 * -Dapplication.home=<apphome> 1759 * -Djava.class.path=<appcp> 1760 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1761 * tells javac where to find binary classes through this environment 1762 * variable. Notice that users will be able to compile against our 1763 * tools classes (sun.tools.javac.Main) only if they explicitly add 1764 * tools.jar to CLASSPATH. 1765 * <apphome> is the directory where the application is installed. 1766 * <appcp> is the classpath to where our apps' classfiles are. 1767 */ 1768 static jboolean 1769 AddApplicationOptions(int cpathc, const char **cpathv) 1770 { 1771 char *envcp, *appcp, *apphome; 1772 char home[MAXPATHLEN]; /* application home */ 1773 char separator[] = { PATH_SEPARATOR, '\0' }; 1774 int size, i; 1775 1776 { 1777 const char *s = getenv("CLASSPATH"); 1778 if (s) { 1779 s = (char *) JLI_WildcardExpandClasspath(s); 1780 /* 40 for -Denv.class.path= */ 1781 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1782 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1783 sprintf(envcp, "-Denv.class.path=%s", s); 1784 AddOption(envcp, NULL); 1785 } 1786 } 1787 } 1788 1789 if (!GetApplicationHome(home, sizeof(home))) { 1790 JLI_ReportErrorMessage(CFG_ERROR5); 1791 return JNI_FALSE; 1792 } 1793 1794 /* 40 for '-Dapplication.home=' */ 1795 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1796 sprintf(apphome, "-Dapplication.home=%s", home); 1797 AddOption(apphome, NULL); 1798 1799 /* How big is the application's classpath? */ 1800 if (cpathc > 0) { 1801 size = 40; /* 40: "-Djava.class.path=" */ 1802 for (i = 0; i < cpathc; i++) { 1803 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1804 } 1805 appcp = (char *)JLI_MemAlloc(size + 1); 1806 JLI_StrCpy(appcp, "-Djava.class.path="); 1807 for (i = 0; i < cpathc; i++) { 1808 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1809 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1810 JLI_StrCat(appcp, separator); /* ; */ 1811 } 1812 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1813 AddOption(appcp, NULL); 1814 } 1815 return JNI_TRUE; 1816 } 1817 1818 /* 1819 * inject the -Dsun.java.command pseudo property into the args structure 1820 * this pseudo property is used in the HotSpot VM to expose the 1821 * Java class name and arguments to the main method to the VM. The 1822 * HotSpot VM uses this pseudo property to store the Java class name 1823 * (or jar file name) and the arguments to the class's main method 1824 * to the instrumentation memory region. The sun.java.command pseudo 1825 * property is not exported by HotSpot to the Java layer. 1826 */ 1827 void 1828 SetJavaCommandLineProp(char *what, int argc, char **argv) 1829 { 1830 1831 int i = 0; 1832 size_t len = 0; 1833 char* javaCommand = NULL; 1834 char* dashDstr = "-Dsun.java.command="; 1835 1836 if (what == NULL) { 1837 /* unexpected, one of these should be set. just return without 1838 * setting the property 1839 */ 1840 return; 1841 } 1842 1843 /* determine the amount of memory to allocate assuming 1844 * the individual components will be space separated 1845 */ 1846 len = JLI_StrLen(what); 1847 for (i = 0; i < argc; i++) { 1848 len += JLI_StrLen(argv[i]) + 1; 1849 } 1850 1851 /* allocate the memory */ 1852 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1853 1854 /* build the -D string */ 1855 *javaCommand = '\0'; 1856 JLI_StrCat(javaCommand, dashDstr); 1857 JLI_StrCat(javaCommand, what); 1858 1859 for (i = 0; i < argc; i++) { 1860 /* the components of the string are space separated. In 1861 * the case of embedded white space, the relationship of 1862 * the white space separated components to their true 1863 * positional arguments will be ambiguous. This issue may 1864 * be addressed in a future release. 1865 */ 1866 JLI_StrCat(javaCommand, " "); 1867 JLI_StrCat(javaCommand, argv[i]); 1868 } 1869 1870 AddOption(javaCommand, NULL); 1871 } 1872 1873 /* 1874 * JVM would like to know if it's created by a standard Sun launcher, or by 1875 * user native application, the following property indicates the former. 1876 */ 1877 void 1878 SetJavaLauncherProp() { 1879 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1880 } 1881 1882 /* 1883 * Prints the version information from the java.version and other properties. 1884 */ 1885 static void 1886 PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1887 { 1888 jclass ver; 1889 jmethodID print; 1890 1891 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps")); 1892 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1893 ver, 1894 (extraLF == JNI_TRUE) ? "println" : "print", 1895 "(Z)V" 1896 ) 1897 ); 1898 1899 (*env)->CallStaticVoidMethod(env, ver, print, printTo); 1900 } 1901 1902 /* 1903 * Prints all the Java settings, see the java implementation for more details. 1904 */ 1905 static void 1906 ShowSettings(JNIEnv *env, char *optString) 1907 { 1908 jmethodID showSettingsID; 1909 jstring joptString; 1910 jclass cls = GetLauncherHelperClass(env); 1911 NULL_CHECK(cls); 1912 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1913 "showSettings", "(ZLjava/lang/String;JJJ)V")); 1914 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1915 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1916 USE_STDERR, 1917 joptString, 1918 (jlong)initialHeapSize, 1919 (jlong)maxHeapSize, 1920 (jlong)threadStackSize); 1921 } 1922 1923 /** 1924 * Show resolved modules 1925 */ 1926 static void 1927 ShowResolvedModules(JNIEnv *env) 1928 { 1929 jmethodID showResolvedModulesID; 1930 jclass cls = GetLauncherHelperClass(env); 1931 NULL_CHECK(cls); 1932 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls, 1933 "showResolvedModules", "()V")); 1934 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID); 1935 } 1936 1937 /** 1938 * List observable modules 1939 */ 1940 static void 1941 ListModules(JNIEnv *env) 1942 { 1943 jmethodID listModulesID; 1944 jclass cls = GetLauncherHelperClass(env); 1945 NULL_CHECK(cls); 1946 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls, 1947 "listModules", "()V")); 1948 (*env)->CallStaticVoidMethod(env, cls, listModulesID); 1949 } 1950 1951 /** 1952 * Describe a module 1953 */ 1954 static void 1955 DescribeModule(JNIEnv *env, char *optString) 1956 { 1957 jmethodID describeModuleID; 1958 jstring joptString = NULL; 1959 jclass cls = GetLauncherHelperClass(env); 1960 NULL_CHECK(cls); 1961 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls, 1962 "describeModule", "(Ljava/lang/String;)V")); 1963 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1964 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString); 1965 } 1966 1967 /* 1968 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1969 */ 1970 static void 1971 PrintUsage(JNIEnv* env, jboolean doXUsage) 1972 { 1973 jmethodID initHelp, vmSelect, vmSynonym, printHelp, printXUsageMessage; 1974 jstring jprogname, vm1, vm2; 1975 int i; 1976 jclass cls = GetLauncherHelperClass(env); 1977 NULL_CHECK(cls); 1978 if (doXUsage) { 1979 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1980 "printXUsageMessage", "(Z)V")); 1981 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo); 1982 } else { 1983 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1984 "initHelpMessage", "(Ljava/lang/String;)V")); 1985 1986 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1987 "(Ljava/lang/String;Ljava/lang/String;)V")); 1988 1989 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1990 "appendVmSynonymMessage", 1991 "(Ljava/lang/String;Ljava/lang/String;)V")); 1992 1993 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1994 "printHelpMessage", "(Z)V")); 1995 1996 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1997 1998 /* Initialize the usage message with the usual preamble */ 1999 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 2000 CHECK_EXCEPTION_RETURN(); 2001 2002 2003 /* Assemble the other variant part of the usage */ 2004 for (i=1; i<knownVMsCount; i++) { 2005 if (knownVMs[i].flag == VM_KNOWN) { 2006 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 2007 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 2008 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 2009 CHECK_EXCEPTION_RETURN(); 2010 } 2011 } 2012 for (i=1; i<knownVMsCount; i++) { 2013 if (knownVMs[i].flag == VM_ALIASED_TO) { 2014 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 2015 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 2016 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 2017 CHECK_EXCEPTION_RETURN(); 2018 } 2019 } 2020 2021 /* Complete the usage message and print to stderr*/ 2022 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo); 2023 } 2024 return; 2025 } 2026 2027 /* 2028 * Read the jvm.cfg file and fill the knownJVMs[] array. 2029 * 2030 * The functionality of the jvm.cfg file is subject to change without 2031 * notice and the mechanism will be removed in the future. 2032 * 2033 * The lexical structure of the jvm.cfg file is as follows: 2034 * 2035 * jvmcfg := { vmLine } 2036 * vmLine := knownLine 2037 * | aliasLine 2038 * | warnLine 2039 * | ignoreLine 2040 * | errorLine 2041 * | predicateLine 2042 * | commentLine 2043 * knownLine := flag "KNOWN" EOL 2044 * warnLine := flag "WARN" EOL 2045 * ignoreLine := flag "IGNORE" EOL 2046 * errorLine := flag "ERROR" EOL 2047 * aliasLine := flag "ALIASED_TO" flag EOL 2048 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 2049 * commentLine := "#" text EOL 2050 * flag := "-" identifier 2051 * 2052 * The semantics are that when someone specifies a flag on the command line: 2053 * - if the flag appears on a knownLine, then the identifier is used as 2054 * the name of the directory holding the JVM library (the name of the JVM). 2055 * - if the flag appears as the first flag on an aliasLine, the identifier 2056 * of the second flag is used as the name of the JVM. 2057 * - if the flag appears on a warnLine, the identifier is used as the 2058 * name of the JVM, but a warning is generated. 2059 * - if the flag appears on an ignoreLine, the identifier is recognized as the 2060 * name of a JVM, but the identifier is ignored and the default vm used 2061 * - if the flag appears on an errorLine, an error is generated. 2062 * - if the flag appears as the first flag on a predicateLine, and 2063 * the machine on which you are running passes the predicate indicated, 2064 * then the identifier of the second flag is used as the name of the JVM, 2065 * otherwise the identifier of the first flag is used as the name of the JVM. 2066 * If no flag is given on the command line, the first vmLine of the jvm.cfg 2067 * file determines the name of the JVM. 2068 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 2069 * since they only make sense if someone hasn't specified the name of the 2070 * JVM on the command line. 2071 * 2072 * The intent of the jvm.cfg file is to allow several JVM libraries to 2073 * be installed in different subdirectories of a single JRE installation, 2074 * for space-savings and convenience in testing. 2075 * The intent is explicitly not to provide a full aliasing or predicate 2076 * mechanism. 2077 */ 2078 jint 2079 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 2080 { 2081 FILE *jvmCfg; 2082 char line[MAXPATHLEN+20]; 2083 int cnt = 0; 2084 int lineno = 0; 2085 jlong start, end; 2086 int vmType; 2087 char *tmpPtr; 2088 char *altVMName = NULL; 2089 char *serverClassVMName = NULL; 2090 static char *whiteSpace = " \t"; 2091 if (JLI_IsTraceLauncher()) { 2092 start = CounterGet(); 2093 } 2094 2095 jvmCfg = fopen(jvmCfgName, "r"); 2096 if (jvmCfg == NULL) { 2097 if (!speculative) { 2098 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 2099 exit(1); 2100 } else { 2101 return -1; 2102 } 2103 } 2104 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 2105 vmType = VM_UNKNOWN; 2106 lineno++; 2107 if (line[0] == '#') 2108 continue; 2109 if (line[0] != '-') { 2110 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 2111 } 2112 if (cnt >= knownVMsLimit) { 2113 GrowKnownVMs(cnt); 2114 } 2115 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 2116 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 2117 if (*tmpPtr == 0) { 2118 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2119 } else { 2120 /* Null-terminate this string for JLI_StringDup below */ 2121 *tmpPtr++ = 0; 2122 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2123 if (*tmpPtr == 0) { 2124 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2125 } else { 2126 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 2127 vmType = VM_KNOWN; 2128 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 2129 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2130 if (*tmpPtr != 0) { 2131 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2132 } 2133 if (*tmpPtr == 0) { 2134 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2135 } else { 2136 /* Null terminate altVMName */ 2137 altVMName = tmpPtr; 2138 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2139 *tmpPtr = 0; 2140 vmType = VM_ALIASED_TO; 2141 } 2142 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 2143 vmType = VM_WARN; 2144 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 2145 vmType = VM_IGNORE; 2146 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 2147 vmType = VM_ERROR; 2148 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 2149 /* ignored */ 2150 } else { 2151 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 2152 vmType = VM_KNOWN; 2153 } 2154 } 2155 } 2156 2157 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 2158 if (vmType != VM_UNKNOWN) { 2159 knownVMs[cnt].name = JLI_StringDup(line); 2160 knownVMs[cnt].flag = vmType; 2161 switch (vmType) { 2162 default: 2163 break; 2164 case VM_ALIASED_TO: 2165 knownVMs[cnt].alias = JLI_StringDup(altVMName); 2166 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 2167 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 2168 break; 2169 } 2170 cnt++; 2171 } 2172 } 2173 fclose(jvmCfg); 2174 knownVMsCount = cnt; 2175 2176 if (JLI_IsTraceLauncher()) { 2177 end = CounterGet(); 2178 printf("%ld micro seconds to parse jvm.cfg\n", 2179 (long)(jint)Counter2Micros(end-start)); 2180 } 2181 2182 return cnt; 2183 } 2184 2185 2186 static void 2187 GrowKnownVMs(int minimum) 2188 { 2189 struct vmdesc* newKnownVMs; 2190 int newMax; 2191 2192 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 2193 if (newMax <= minimum) { 2194 newMax = minimum; 2195 } 2196 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 2197 if (knownVMs != NULL) { 2198 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 2199 } 2200 JLI_MemFree(knownVMs); 2201 knownVMs = newKnownVMs; 2202 knownVMsLimit = newMax; 2203 } 2204 2205 2206 /* Returns index of VM or -1 if not found */ 2207 static int 2208 KnownVMIndex(const char* name) 2209 { 2210 int i; 2211 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 2212 for (i = 0; i < knownVMsCount; i++) { 2213 if (!JLI_StrCmp(name, knownVMs[i].name)) { 2214 return i; 2215 } 2216 } 2217 return -1; 2218 } 2219 2220 static void 2221 FreeKnownVMs() 2222 { 2223 int i; 2224 for (i = 0; i < knownVMsCount; i++) { 2225 JLI_MemFree(knownVMs[i].name); 2226 knownVMs[i].name = NULL; 2227 } 2228 JLI_MemFree(knownVMs); 2229 } 2230 2231 /* 2232 * Displays the splash screen according to the jar file name 2233 * and image file names stored in environment variables 2234 */ 2235 void 2236 ShowSplashScreen() 2237 { 2238 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 2239 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 2240 int data_size; 2241 void *image_data = NULL; 2242 float scale_factor = 1; 2243 char *scaled_splash_name = NULL; 2244 jboolean isImageScaled = JNI_FALSE; 2245 size_t maxScaledImgNameLength = 0; 2246 if (file_name == NULL){ 2247 return; 2248 } 2249 2250 if (!DoSplashInit()) { 2251 goto exit; 2252 } 2253 2254 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name); 2255 2256 scaled_splash_name = JLI_MemAlloc( 2257 maxScaledImgNameLength * sizeof(char)); 2258 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name, 2259 &scale_factor, 2260 scaled_splash_name, maxScaledImgNameLength); 2261 if (jar_name) { 2262 2263 if (isImageScaled) { 2264 image_data = JLI_JarUnpackFile( 2265 jar_name, scaled_splash_name, &data_size); 2266 } 2267 2268 if (!image_data) { 2269 scale_factor = 1; 2270 image_data = JLI_JarUnpackFile( 2271 jar_name, file_name, &data_size); 2272 } 2273 if (image_data) { 2274 DoSplashSetScaleFactor(scale_factor); 2275 DoSplashLoadMemory(image_data, data_size); 2276 JLI_MemFree(image_data); 2277 } else { 2278 DoSplashClose(); 2279 } 2280 } else { 2281 if (isImageScaled) { 2282 DoSplashSetScaleFactor(scale_factor); 2283 DoSplashLoadFile(scaled_splash_name); 2284 } else { 2285 DoSplashLoadFile(file_name); 2286 } 2287 } 2288 JLI_MemFree(scaled_splash_name); 2289 2290 DoSplashSetFileJarName(file_name, jar_name); 2291 2292 exit: 2293 /* 2294 * Done with all command line processing and potential re-execs so 2295 * clean up the environment. 2296 */ 2297 (void)UnsetEnv(ENV_ENTRY); 2298 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 2299 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 2300 2301 JLI_MemFree(splash_jar_entry); 2302 JLI_MemFree(splash_file_entry); 2303 2304 } 2305 2306 const char* 2307 GetFullVersion() 2308 { 2309 return _fVersion; 2310 } 2311 2312 const char* 2313 GetProgramName() 2314 { 2315 return _program_name; 2316 } 2317 2318 const char* 2319 GetLauncherName() 2320 { 2321 return _launcher_name; 2322 } 2323 2324 jboolean 2325 IsJavaArgs() 2326 { 2327 return _is_java_args; 2328 } 2329 2330 static jboolean 2331 IsWildCardEnabled() 2332 { 2333 return _wc_enabled; 2334 } 2335 2336 int 2337 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 2338 int argc, char **argv, 2339 int mode, char *what, int ret) 2340 { 2341 if (threadStackSize == 0) { 2342 /* 2343 * If the user hasn't specified a non-zero stack size ask the JVM for its default. 2344 * A returned 0 means 'use the system default' for a platform, e.g., Windows. 2345 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 2346 * return its default stack size through the init args structure. 2347 */ 2348 struct JDK1_1InitArgs args1_1; 2349 memset((void*)&args1_1, 0, sizeof(args1_1)); 2350 args1_1.version = JNI_VERSION_1_1; 2351 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 2352 if (args1_1.javaStackSize > 0) { 2353 threadStackSize = args1_1.javaStackSize; 2354 } 2355 } 2356 2357 { /* Create a new thread to create JVM and invoke main method */ 2358 JavaMainArgs args; 2359 int rslt; 2360 2361 args.argc = argc; 2362 args.argv = argv; 2363 args.mode = mode; 2364 args.what = what; 2365 args.ifn = *ifn; 2366 2367 rslt = CallJavaMainInNewThread(threadStackSize, (void*)&args); 2368 /* If the caller has deemed there is an error we 2369 * simply return that, otherwise we return the value of 2370 * the callee 2371 */ 2372 return (ret != 0) ? ret : rslt; 2373 } 2374 } 2375 2376 static void 2377 DumpState() 2378 { 2379 if (!JLI_IsTraceLauncher()) return ; 2380 printf("Launcher state:\n"); 2381 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex()); 2382 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 2383 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 2384 printf("\tprogram name:%s\n", GetProgramName()); 2385 printf("\tlauncher name:%s\n", GetLauncherName()); 2386 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 2387 printf("\tfullversion:%s\n", GetFullVersion()); 2388 } 2389 2390 /* 2391 * A utility procedure to always print to stderr 2392 */ 2393 JNIEXPORT void JNICALL 2394 JLI_ReportMessage(const char* fmt, ...) 2395 { 2396 va_list vl; 2397 va_start(vl, fmt); 2398 vfprintf(stderr, fmt, vl); 2399 fprintf(stderr, "\n"); 2400 va_end(vl); 2401 } 2402 2403 /* 2404 * A utility procedure to always print to stdout 2405 */ 2406 void 2407 JLI_ShowMessage(const char* fmt, ...) 2408 { 2409 va_list vl; 2410 va_start(vl, fmt); 2411 vfprintf(stdout, fmt, vl); 2412 fprintf(stdout, "\n"); 2413 va_end(vl); 2414 }