1/* 2 * Copyright (c) 1995, 2017, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26/* 27 * Shared source for 'java' command line tool. 28 * 29 * If JAVA_ARGS is defined, then acts as a launcher for applications. For 30 * instance, the JDK command line tools such as javac and javadoc (see 31 * makefiles for more details) are built with this program. Any arguments 32 * prefixed with '-J' will be passed directly to the 'java' command. 33 */ 34 35/* 36 * One job of the launcher is to remove command line options which the 37 * vm does not understand and will not process. These options include 38 * options which select which style of vm is run (e.g. -client and 39 * -server) as well as options which select the data model to use. 40 * Additionally, for tools which invoke an underlying vm "-J-foo" 41 * options are turned into "-foo" options to the vm. This option 42 * filtering is handled in a number of places in the launcher, some of 43 * it in machine-dependent code. In this file, the function 44 * CheckJvmType removes vm style options and TranslateApplicationArgs 45 * removes "-J" prefixes. The CreateExecutionEnvironment function processes 46 * and removes -d<n> options. On unix, there is a possibility that the running 47 * data model may not match to the desired data model, in this case an exec is 48 * required to start the desired model. If the data models match, then 49 * ParseArguments will remove the -d<n> flags. If the data models do not match 50 * the CreateExecutionEnviroment will remove the -d<n> flags. 51 */ 52 53 54#include "java.h" 55 56/* 57 * A NOTE TO DEVELOPERS: For performance reasons it is important that 58 * the program image remain relatively small until after SelectVersion 59 * CreateExecutionEnvironment have finished their possibly recursive 60 * processing. Watch everything, but resist all temptations to use Java 61 * interfaces. 62 */ 63 64#define USE_STDERR JNI_TRUE /* we usually print to stderr */ 65#define USE_STDOUT JNI_FALSE 66 67static jboolean printVersion = JNI_FALSE; /* print and exit */ 68static jboolean showVersion = JNI_FALSE; /* print but continue */ 69static jboolean printUsage = JNI_FALSE; /* print and exit*/ 70static jboolean printTo = USE_STDERR; /* where to print version/usage */ 71static jboolean printXUsage = JNI_FALSE; /* print and exit*/ 72static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */ 73static char *showSettings = NULL; /* print but continue */ 74static jboolean showResolvedModules = JNI_FALSE; 75static jboolean listModules = JNI_FALSE; 76static char *describeModule = NULL; 77static jboolean validateModules = JNI_FALSE; 78 79static const char *_program_name; 80static const char *_launcher_name; 81static jboolean _is_java_args = JNI_FALSE; 82static jboolean _have_classpath = JNI_FALSE; 83static const char *_fVersion; 84static jboolean _wc_enabled = JNI_FALSE; 85 86/* 87 * Entries for splash screen environment variables. 88 * putenv is performed in SelectVersion. We need 89 * them in memory until UnsetEnv, so they are made static 90 * global instead of auto local. 91 */ 92static char* splash_file_entry = NULL; 93static char* splash_jar_entry = NULL; 94 95/* 96 * List of VM options to be specified when the VM is created. 97 */ 98static JavaVMOption *options; 99static int numOptions, maxOptions; 100 101/* 102 * Prototypes for functions internal to launcher. 103 */ 104static void SetClassPath(const char *s); 105static void SetMainModule(const char *s); 106static void SelectVersion(int argc, char **argv, char **main_class); 107static void SetJvmEnvironment(int argc, char **argv); 108static jboolean ParseArguments(int *pargc, char ***pargv, 109 int *pmode, char **pwhat, 110 int *pret, const char *jrepath); 111static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 112 InvocationFunctions *ifn); 113static jstring NewPlatformString(JNIEnv *env, char *s); 114static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 115static jclass GetApplicationClass(JNIEnv *env); 116 117static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 118static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 119static void SetApplicationClassPath(const char**); 120 121static void PrintJavaVersion(JNIEnv *env, jboolean extraLF); 122static void PrintUsage(JNIEnv* env, jboolean doXUsage); 123static void ShowSettings(JNIEnv* env, char *optString); 124static void ShowResolvedModules(JNIEnv* env); 125static void ListModules(JNIEnv* env); 126static void DescribeModule(JNIEnv* env, char* optString); 127static jboolean ValidateModules(JNIEnv* env); 128 129static void SetPaths(int argc, char **argv); 130 131static void DumpState(); 132static jboolean RemovableOption(char *option); 133 134enum 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 143static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue); 144static 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 */ 150enum 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 160struct vmdesc { 161 char *name; 162 int flag; 163 char *alias; 164 char *server_class; 165}; 166static struct vmdesc *knownVMs = NULL; 167static int knownVMsCount = 0; 168static int knownVMsLimit = 0; 169 170static void GrowKnownVMs(int minimum); 171static int KnownVMIndex(const char* name); 172static void FreeKnownVMs(); 173static jboolean IsWildCardEnabled(); 174 175/* 176 * This reports error. VM will not be created and no usage is printed. 177 */ 178#define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \ 179 do { \ 180 if (!AC_ok) { \ 181 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 182 printUsage = JNI_FALSE; \ 183 *pret = 1; \ 184 return JNI_FALSE; \ 185 } \ 186 } while (JNI_FALSE) 187 188#define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \ 189 do { \ 190 if (AC_arg_count < 1) { \ 191 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 192 printUsage = JNI_TRUE; \ 193 *pret = 1; \ 194 return JNI_TRUE; \ 195 } \ 196 } while (JNI_FALSE) 197 198/* 199 * Running Java code in primordial thread caused many problems. We will 200 * create a new thread to invoke JVM. See 6316197 for more information. 201 */ 202static jlong threadStackSize = 0; /* stack size of the new thread */ 203static jlong maxHeapSize = 0; /* max heap size */ 204static jlong initialHeapSize = 0; /* inital heap size */ 205 206/* 207 * A minimum -Xss stack size suitable for all platforms. 208 */ 209#ifndef STACK_SIZE_MINIMUM 210#define STACK_SIZE_MINIMUM (32 * KB) 211#endif 212 213/* 214 * Entry point. 215 */ 216int 217JLI_Launch(int argc, char ** argv, /* main argc, argc */ 218 int jargc, const char** jargv, /* java args */ 219 int appclassc, const char** appclassv, /* app classpath */ 220 const char* fullversion, /* full version defined */ 221 const char* dotversion, /* UNUSED dot version defined */ 222 const char* pname, /* program name */ 223 const char* lname, /* launcher name */ 224 jboolean javaargs, /* JAVA_ARGS */ 225 jboolean cpwildcard, /* classpath wildcard*/ 226 jboolean javaw, /* windows-only javaw */ 227 jint ergo /* unused */ 228) 229{ 230 int mode = LM_UNKNOWN; 231 char *what = NULL; 232 char *main_class = NULL; 233 int ret; 234 InvocationFunctions ifn; 235 jlong start, end; 236 char jvmpath[MAXPATHLEN]; 237 char jrepath[MAXPATHLEN]; 238 char jvmcfg[MAXPATHLEN]; 239 240 _fVersion = fullversion; 241 _launcher_name = lname; 242 _program_name = pname; 243 _is_java_args = javaargs; 244 _wc_enabled = cpwildcard; 245 246 InitLauncher(javaw); 247 DumpState(); 248 if (JLI_IsTraceLauncher()) { 249 int i; 250 printf("Command line args:\n"); 251 for (i = 0; i < argc ; i++) { 252 printf("argv[%d] = %s\n", i, argv[i]); 253 } 254 AddOption("-Dsun.java.launcher.diag=true", NULL); 255 } 256 257 /* 258 * SelectVersion() has several responsibilities: 259 * 260 * 1) Disallow specification of another JRE. With 1.9, another 261 * version of the JRE cannot be invoked. 262 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since 263 * all mJRE directives have been stripped from the request but 264 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been 265 * invoked from the command line. 266 */ 267 SelectVersion(argc, argv, &main_class); 268 269 CreateExecutionEnvironment(&argc, &argv, 270 jrepath, sizeof(jrepath), 271 jvmpath, sizeof(jvmpath), 272 jvmcfg, sizeof(jvmcfg)); 273 274 if (!IsJavaArgs()) { 275 SetJvmEnvironment(argc,argv); 276 } 277 278 ifn.CreateJavaVM = 0; 279 ifn.GetDefaultJavaVMInitArgs = 0; 280 281 if (JLI_IsTraceLauncher()) { 282 start = CounterGet(); 283 } 284 285 if (!LoadJavaVM(jvmpath, &ifn)) { 286 return(6); 287 } 288 289 if (JLI_IsTraceLauncher()) { 290 end = CounterGet(); 291 } 292 293 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", 294 (long)(jint)Counter2Micros(end-start)); 295 296 ++argv; 297 --argc; 298 299 if (IsJavaArgs()) { 300 /* Preprocess wrapper arguments */ 301 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 302 if (!AddApplicationOptions(appclassc, appclassv)) { 303 return(1); 304 } 305 } else { 306 /* Set default CLASSPATH */ 307 char* cpath = getenv("CLASSPATH"); 308 if (cpath != NULL) { 309 SetClassPath(cpath); 310 } 311 } 312 313 /* Parse command line options; if the return value of 314 * ParseArguments is false, the program should exit. 315 */ 316 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) 317 { 318 return(ret); 319 } 320 321 /* Override class path if -jar flag was specified */ 322 if (mode == LM_JAR) { 323 SetClassPath(what); /* Override class path */ 324 } 325 326 /* set the -Dsun.java.command pseudo property */ 327 SetJavaCommandLineProp(what, argc, argv); 328 329 /* Set the -Dsun.java.launcher pseudo property */ 330 SetJavaLauncherProp(); 331 332 /* set the -Dsun.java.launcher.* platform properties */ 333 SetJavaLauncherPlatformProps(); 334 335 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); 336} 337/* 338 * Always detach the main thread so that it appears to have ended when 339 * the application's main method exits. This will invoke the 340 * uncaught exception handler machinery if main threw an 341 * exception. An uncaught exception handler cannot change the 342 * launcher's return code except by calling System.exit. 343 * 344 * Wait for all non-daemon threads to end, then destroy the VM. 345 * This will actually create a trivial new Java waiter thread 346 * named "DestroyJavaVM", but this will be seen as a different 347 * thread from the one that executed main, even though they are 348 * the same C thread. This allows mainThread.join() and 349 * mainThread.isAlive() to work as expected. 350 */ 351#define LEAVE() \ 352 do { \ 353 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \ 354 JLI_ReportErrorMessage(JVM_ERROR2); \ 355 ret = 1; \ 356 } \ 357 if (JNI_TRUE) { \ 358 (*vm)->DestroyJavaVM(vm); \ 359 return ret; \ 360 } \ 361 } while (JNI_FALSE) 362 363#define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \ 364 do { \ 365 if ((*env)->ExceptionOccurred(env)) { \ 366 JLI_ReportExceptionDescription(env); \ 367 LEAVE(); \ 368 } \ 369 if ((CENL_exception) == NULL) { \ 370 JLI_ReportErrorMessage(JNI_ERROR); \ 371 LEAVE(); \ 372 } \ 373 } while (JNI_FALSE) 374 375#define CHECK_EXCEPTION_LEAVE(CEL_return_value) \ 376 do { \ 377 if ((*env)->ExceptionOccurred(env)) { \ 378 JLI_ReportExceptionDescription(env); \ 379 ret = (CEL_return_value); \ 380 LEAVE(); \ 381 } \ 382 } while (JNI_FALSE) 383 384 385int JNICALL 386JavaMain(void * _args) 387{ 388 JavaMainArgs *args = (JavaMainArgs *)_args; 389 int argc = args->argc; 390 char **argv = args->argv; 391 int mode = args->mode; 392 char *what = args->what; 393 InvocationFunctions ifn = args->ifn; 394 395 JavaVM *vm = 0; 396 JNIEnv *env = 0; 397 jclass mainClass = NULL; 398 jclass appClass = NULL; // actual application class being launched 399 jmethodID mainID; 400 jobjectArray mainArgs; 401 int ret = 0; 402 jlong start, end; 403 404 RegisterThread(); 405 406 /* Initialize the virtual machine */ 407 start = CounterGet(); 408 if (!InitializeJVM(&vm, &env, &ifn)) { 409 JLI_ReportErrorMessage(JVM_ERROR1); 410 exit(1); 411 } 412 413 if (showSettings != NULL) { 414 ShowSettings(env, showSettings); 415 CHECK_EXCEPTION_LEAVE(1); 416 } 417 418 // show resolved modules and continue 419 if (showResolvedModules) { 420 ShowResolvedModules(env); 421 CHECK_EXCEPTION_LEAVE(1); 422 } 423 424 // list observable modules, then exit 425 if (listModules) { 426 ListModules(env); 427 CHECK_EXCEPTION_LEAVE(1); 428 LEAVE(); 429 } 430 431 // describe a module, then exit 432 if (describeModule != NULL) { 433 DescribeModule(env, describeModule); 434 CHECK_EXCEPTION_LEAVE(1); 435 LEAVE(); 436 } 437 438 // validate modules on the module path, then exit 439 if (validateModules) { 440 jboolean okay = ValidateModules(env); 441 CHECK_EXCEPTION_LEAVE(1); 442 if (!okay) ret = 1; 443 LEAVE(); 444 } 445 446 if (printVersion || showVersion) { 447 PrintJavaVersion(env, showVersion); 448 CHECK_EXCEPTION_LEAVE(0); 449 if (printVersion) { 450 LEAVE(); 451 } 452 } 453 454 /* If the user specified neither a class name nor a JAR file */ 455 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 456 PrintUsage(env, printXUsage); 457 CHECK_EXCEPTION_LEAVE(1); 458 LEAVE(); 459 } 460 461 FreeKnownVMs(); /* after last possible PrintUsage */ 462 463 if (JLI_IsTraceLauncher()) { 464 end = CounterGet(); 465 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 466 (long)(jint)Counter2Micros(end-start)); 467 } 468 469 /* At this stage, argc/argv have the application's arguments */ 470 if (JLI_IsTraceLauncher()){ 471 int i; 472 printf("%s is '%s'\n", launchModeNames[mode], what); 473 printf("App's argc is %d\n", argc); 474 for (i=0; i < argc; i++) { 475 printf(" argv[%2d] = '%s'\n", i, argv[i]); 476 } 477 } 478 479 ret = 1; 480 481 /* 482 * Get the application's main class. It also checks if the main 483 * method exists. 484 * 485 * See bugid 5030265. The Main-Class name has already been parsed 486 * from the manifest, but not parsed properly for UTF-8 support. 487 * Hence the code here ignores the value previously extracted and 488 * uses the pre-existing code to reextract the value. This is 489 * possibly an end of release cycle expedient. However, it has 490 * also been discovered that passing some character sets through 491 * the environment has "strange" behavior on some variants of 492 * Windows. Hence, maybe the manifest parsing code local to the 493 * launcher should never be enhanced. 494 * 495 * Hence, future work should either: 496 * 1) Correct the local parsing code and verify that the 497 * Main-Class attribute gets properly passed through 498 * all environments, 499 * 2) Remove the vestages of maintaining main_class through 500 * the environment (and remove these comments). 501 * 502 * This method also correctly handles launching existing JavaFX 503 * applications that may or may not have a Main-Class manifest entry. 504 */ 505 mainClass = LoadMainClass(env, mode, what); 506 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 507 /* 508 * In some cases when launching an application that needs a helper, e.g., a 509 * JavaFX application with no main method, the mainClass will not be the 510 * applications own main class but rather a helper class. To keep things 511 * consistent in the UI we need to track and report the application main class. 512 */ 513 appClass = GetApplicationClass(env); 514 NULL_CHECK_RETURN_VALUE(appClass, -1); 515 516 /* Build platform specific argument array */ 517 mainArgs = CreateApplicationArgs(env, argv, argc); 518 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 519 520 if (dryRun) { 521 ret = 0; 522 LEAVE(); 523 } 524 525 /* 526 * PostJVMInit uses the class name as the application name for GUI purposes, 527 * for example, on OSX this sets the application name in the menu bar for 528 * both SWT and JavaFX. So we'll pass the actual application class here 529 * instead of mainClass as that may be a launcher or helper class instead 530 * of the application class. 531 */ 532 PostJVMInit(env, appClass, vm); 533 CHECK_EXCEPTION_LEAVE(1); 534 535 /* 536 * The LoadMainClass not only loads the main class, it will also ensure 537 * that the main method's signature is correct, therefore further checking 538 * is not required. The main method is invoked here so that extraneous java 539 * stacks are not in the application stack trace. 540 */ 541 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 542 "([Ljava/lang/String;)V"); 543 CHECK_EXCEPTION_NULL_LEAVE(mainID); 544 545 /* Invoke main method. */ 546 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 547 548 /* 549 * The launcher's exit code (in the absence of calls to 550 * System.exit) will be non-zero if main threw an exception. 551 */ 552 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 553 554 LEAVE(); 555} 556 557/* 558 * Test if the given name is one of the class path options. 559 */ 560static jboolean 561IsClassPathOption(const char* name) { 562 return JLI_StrCmp(name, "-classpath") == 0 || 563 JLI_StrCmp(name, "-cp") == 0 || 564 JLI_StrCmp(name, "--class-path") == 0; 565} 566 567/* 568 * Test if the given name is a launcher option taking the main entry point. 569 */ 570static jboolean 571IsLauncherMainOption(const char* name) { 572 return JLI_StrCmp(name, "--module") == 0 || 573 JLI_StrCmp(name, "-m") == 0; 574} 575 576/* 577 * Test if the given name is a white-space launcher option. 578 */ 579static jboolean 580IsLauncherOption(const char* name) { 581 return IsClassPathOption(name) || 582 IsLauncherMainOption(name) || 583 JLI_StrCmp(name, "--describe-module") == 0 || 584 JLI_StrCmp(name, "-d") == 0; 585} 586 587/* 588 * Test if the given name is a module-system white-space option that 589 * will be passed to the VM with its corresponding long-form option 590 * name and "=" delimiter. 591 */ 592static jboolean 593IsModuleOption(const char* name) { 594 return JLI_StrCmp(name, "--module-path") == 0 || 595 JLI_StrCmp(name, "-p") == 0 || 596 JLI_StrCmp(name, "--upgrade-module-path") == 0 || 597 JLI_StrCmp(name, "--add-modules") == 0 || 598 JLI_StrCmp(name, "--limit-modules") == 0 || 599 JLI_StrCmp(name, "--add-exports") == 0 || 600 JLI_StrCmp(name, "--add-opens") == 0 || 601 JLI_StrCmp(name, "--add-reads") == 0 || 602 JLI_StrCmp(name, "--patch-module") == 0; 603} 604 605static jboolean 606IsLongFormModuleOption(const char* name) { 607 return JLI_StrCCmp(name, "--module-path=") == 0 || 608 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 || 609 JLI_StrCCmp(name, "--add-modules=") == 0 || 610 JLI_StrCCmp(name, "--limit-modules=") == 0 || 611 JLI_StrCCmp(name, "--add-exports=") == 0 || 612 JLI_StrCCmp(name, "--add-reads=") == 0 || 613 JLI_StrCCmp(name, "--patch-module=") == 0; 614} 615 616/* 617 * Test if the given name has a white space option. 618 */ 619jboolean 620IsWhiteSpaceOption(const char* name) { 621 return IsModuleOption(name) || 622 IsLauncherOption(name); 623} 624 625/* 626 * Checks the command line options to find which JVM type was 627 * specified. If no command line option was given for the JVM type, 628 * the default type is used. The environment variable 629 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 630 * checked as ways of specifying which JVM type to invoke. 631 */ 632char * 633CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 634 int i, argi; 635 int argc; 636 char **newArgv; 637 int newArgvIdx = 0; 638 int isVMType; 639 int jvmidx = -1; 640 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 641 642 argc = *pargc; 643 644 /* To make things simpler we always copy the argv array */ 645 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 646 647 /* The program name is always present */ 648 newArgv[newArgvIdx++] = (*argv)[0]; 649 650 for (argi = 1; argi < argc; argi++) { 651 char *arg = (*argv)[argi]; 652 isVMType = 0; 653 654 if (IsJavaArgs()) { 655 if (arg[0] != '-') { 656 newArgv[newArgvIdx++] = arg; 657 continue; 658 } 659 } else { 660 if (IsWhiteSpaceOption(arg)) { 661 newArgv[newArgvIdx++] = arg; 662 argi++; 663 if (argi < argc) { 664 newArgv[newArgvIdx++] = (*argv)[argi]; 665 } 666 continue; 667 } 668 if (arg[0] != '-') break; 669 } 670 671 /* Did the user pass an explicit VM type? */ 672 i = KnownVMIndex(arg); 673 if (i >= 0) { 674 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 675 isVMType = 1; 676 *pargc = *pargc - 1; 677 } 678 679 /* Did the user specify an "alternate" VM? */ 680 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 681 isVMType = 1; 682 jvmtype = arg+((arg[1]=='X')? 10 : 12); 683 jvmidx = -1; 684 } 685 686 if (!isVMType) { 687 newArgv[newArgvIdx++] = arg; 688 } 689 } 690 691 /* 692 * Finish copying the arguments if we aborted the above loop. 693 * NOTE that if we aborted via "break" then we did NOT copy the 694 * last argument above, and in addition argi will be less than 695 * argc. 696 */ 697 while (argi < argc) { 698 newArgv[newArgvIdx++] = (*argv)[argi]; 699 argi++; 700 } 701 702 /* argv is null-terminated */ 703 newArgv[newArgvIdx] = 0; 704 705 /* Copy back argv */ 706 *argv = newArgv; 707 *pargc = newArgvIdx; 708 709 /* use the default VM type if not specified (no alias processing) */ 710 if (jvmtype == NULL) { 711 char* result = knownVMs[0].name+1; 712 JLI_TraceLauncher("Default VM: %s\n", result); 713 return result; 714 } 715 716 /* if using an alternate VM, no alias processing */ 717 if (jvmidx < 0) 718 return jvmtype; 719 720 /* Resolve aliases first */ 721 { 722 int loopCount = 0; 723 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 724 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 725 726 if (loopCount > knownVMsCount) { 727 if (!speculative) { 728 JLI_ReportErrorMessage(CFG_ERROR1); 729 exit(1); 730 } else { 731 return "ERROR"; 732 /* break; */ 733 } 734 } 735 736 if (nextIdx < 0) { 737 if (!speculative) { 738 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 739 exit(1); 740 } else { 741 return "ERROR"; 742 } 743 } 744 jvmidx = nextIdx; 745 jvmtype = knownVMs[jvmidx].name+1; 746 loopCount++; 747 } 748 } 749 750 switch (knownVMs[jvmidx].flag) { 751 case VM_WARN: 752 if (!speculative) { 753 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 754 } 755 /* fall through */ 756 case VM_IGNORE: 757 jvmtype = knownVMs[jvmidx=0].name + 1; 758 /* fall through */ 759 case VM_KNOWN: 760 break; 761 case VM_ERROR: 762 if (!speculative) { 763 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 764 exit(1); 765 } else { 766 return "ERROR"; 767 } 768 } 769 770 return jvmtype; 771} 772 773/* 774 * static void SetJvmEnvironment(int argc, char **argv); 775 * Is called just before the JVM is loaded. We can set env variables 776 * that are consumed by the JVM. This function is non-destructive, 777 * leaving the arg list intact. The first use is for the JVM flag 778 * -XX:NativeMemoryTracking=value. 779 */ 780static void 781SetJvmEnvironment(int argc, char **argv) { 782 783 static const char* NMT_Env_Name = "NMT_LEVEL_"; 784 int i; 785 for (i = 0; i < argc; i++) { 786 char *arg = argv[i]; 787 /* 788 * Since this must be a VM flag we stop processing once we see 789 * an argument the launcher would not have processed beyond (such 790 * as -version or -h), or an argument that indicates the following 791 * arguments are for the application (i.e. the main class name, or 792 * the -jar argument). 793 */ 794 if (i > 0) { 795 char *prev = argv[i - 1]; 796 // skip non-dash arg preceded by class path specifiers 797 if (*arg != '-' && IsWhiteSpaceOption(prev)) { 798 continue; 799 } 800 801 if (*arg != '-' || isTerminalOpt(arg)) { 802 return; 803 } 804 } 805 /* 806 * The following case checks for "-XX:NativeMemoryTracking=value". 807 * If value is non null, an environmental variable set to this value 808 * will be created to be used by the JVM. 809 * The argument is passed to the JVM, which will check validity. 810 * The JVM is responsible for removing the env variable. 811 */ 812 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { 813 int retval; 814 // get what follows this parameter, include "=" 815 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); 816 if (JLI_StrLen(arg) > pnlen) { 817 char* value = arg + pnlen; 818 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits 819 820 /* 821 * ensures that malloc successful 822 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call 823 * that could store the address. 824 */ 825 char * pbuf = (char*)JLI_MemAlloc(pbuflen); 826 827 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); 828 retval = JLI_PutEnv(pbuf); 829 if (JLI_IsTraceLauncher()) { 830 char* envName; 831 char* envBuf; 832 833 // ensures that malloc successful 834 envName = (char*)JLI_MemAlloc(pbuflen); 835 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); 836 837 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); 838 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); 839 envBuf = getenv(envName); 840 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); 841 free(envName); 842 } 843 844 } 845 846 } 847 848 } 849} 850 851/* copied from HotSpot function "atomll()" */ 852static int 853parse_size(const char *s, jlong *result) { 854 jlong n = 0; 855 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n); 856 if (args_read != 1) { 857 return 0; 858 } 859 while (*s != '\0' && *s >= '0' && *s <= '9') { 860 s++; 861 } 862 // 4705540: illegal if more characters are found after the first non-digit 863 if (JLI_StrLen(s) > 1) { 864 return 0; 865 } 866 switch (*s) { 867 case 'T': case 't': 868 *result = n * GB * KB; 869 return 1; 870 case 'G': case 'g': 871 *result = n * GB; 872 return 1; 873 case 'M': case 'm': 874 *result = n * MB; 875 return 1; 876 case 'K': case 'k': 877 *result = n * KB; 878 return 1; 879 case '\0': 880 *result = n; 881 return 1; 882 default: 883 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 884 return 0; 885 } 886} 887 888/* 889 * Adds a new VM option with the given name and value. 890 */ 891void 892AddOption(char *str, void *info) 893{ 894 /* 895 * Expand options array if needed to accommodate at least one more 896 * VM option. 897 */ 898 if (numOptions >= maxOptions) { 899 if (options == 0) { 900 maxOptions = 4; 901 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 902 } else { 903 JavaVMOption *tmp; 904 maxOptions *= 2; 905 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 906 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 907 JLI_MemFree(options); 908 options = tmp; 909 } 910 } 911 options[numOptions].optionString = str; 912 options[numOptions++].extraInfo = info; 913 914 if (JLI_StrCCmp(str, "-Xss") == 0) { 915 jlong tmp; 916 if (parse_size(str + 4, &tmp)) { 917 threadStackSize = tmp; 918 /* 919 * Make sure the thread stack size is big enough that we won't get a stack 920 * overflow before the JVM startup code can check to make sure the stack 921 * is big enough. 922 */ 923 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) { 924 threadStackSize = STACK_SIZE_MINIMUM; 925 } 926 } 927 } 928 929 if (JLI_StrCCmp(str, "-Xmx") == 0) { 930 jlong tmp; 931 if (parse_size(str + 4, &tmp)) { 932 maxHeapSize = tmp; 933 } 934 } 935 936 if (JLI_StrCCmp(str, "-Xms") == 0) { 937 jlong tmp; 938 if (parse_size(str + 4, &tmp)) { 939 initialHeapSize = tmp; 940 } 941 } 942} 943 944static void 945SetClassPath(const char *s) 946{ 947 char *def; 948 const char *orig = s; 949 static const char format[] = "-Djava.class.path=%s"; 950 /* 951 * usually we should not get a null pointer, but there are cases where 952 * we might just get one, in which case we simply ignore it, and let the 953 * caller deal with it 954 */ 955 if (s == NULL) 956 return; 957 s = JLI_WildcardExpandClasspath(s); 958 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 959 // s is became corrupted after expanding wildcards 960 return; 961 def = JLI_MemAlloc(sizeof(format) 962 - 2 /* strlen("%s") */ 963 + JLI_StrLen(s)); 964 sprintf(def, format, s); 965 AddOption(def, NULL); 966 if (s != orig) 967 JLI_MemFree((char *) s); 968 _have_classpath = JNI_TRUE; 969} 970 971static void 972AddLongFormOption(const char *option, const char *arg) 973{ 974 static const char format[] = "%s=%s"; 975 char *def; 976 size_t def_len; 977 978 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1; 979 def = JLI_MemAlloc(def_len); 980 JLI_Snprintf(def, def_len, format, option, arg); 981 AddOption(def, NULL); 982} 983 984static void 985SetMainModule(const char *s) 986{ 987 static const char format[] = "-Djdk.module.main=%s"; 988 char* slash = JLI_StrChr(s, '/'); 989 size_t s_len, def_len; 990 char *def; 991 992 /* value may be <module> or <module>/<mainclass> */ 993 if (slash == NULL) { 994 s_len = JLI_StrLen(s); 995 } else { 996 s_len = (size_t) (slash - s); 997 } 998 def_len = sizeof(format) 999 - 2 /* strlen("%s") */ 1000 + s_len; 1001 def = JLI_MemAlloc(def_len); 1002 JLI_Snprintf(def, def_len, format, s); 1003 AddOption(def, NULL); 1004} 1005 1006/* 1007 * The SelectVersion() routine ensures that an appropriate version of 1008 * the JRE is running. The specification for the appropriate version 1009 * is obtained from either the manifest of a jar file (preferred) or 1010 * from command line options. 1011 * The routine also parses splash screen command line options and 1012 * passes on their values in private environment variables. 1013 */ 1014static void 1015SelectVersion(int argc, char **argv, char **main_class) 1016{ 1017 char *arg; 1018 char *operand; 1019 char *version = NULL; 1020 char *jre = NULL; 1021 int jarflag = 0; 1022 int headlessflag = 0; 1023 int restrict_search = -1; /* -1 implies not known */ 1024 manifest_info info; 1025 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 1026 char *splash_file_name = NULL; 1027 char *splash_jar_name = NULL; 1028 char *env_in; 1029 int res; 1030 jboolean has_arg; 1031 1032 /* 1033 * If the version has already been selected, set *main_class 1034 * with the value passed through the environment (if any) and 1035 * simply return. 1036 */ 1037 1038 /* 1039 * This environmental variable can be set by mJRE capable JREs 1040 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been 1041 * stripped by those JREs. This environmental variable allows 1.9+ 1042 * JREs to be started by these mJRE capable JREs. 1043 * Note that mJRE directives in the jar manifest file would have been 1044 * ignored for a JRE started by another JRE... 1045 * .. skipped for JRE 1.5 and beyond. 1046 * .. not even checked for pre 1.5. 1047 */ 1048 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 1049 if (*env_in != '\0') 1050 *main_class = JLI_StringDup(env_in); 1051 return; 1052 } 1053 1054 /* 1055 * Scan through the arguments for options relevant to multiple JRE 1056 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8. 1057 * 1058 * This capability is no longer available with JRE versions 1.9 and later. 1059 * These command line options are reported as errors. 1060 */ 1061 1062 argc--; 1063 argv++; 1064 while ((arg = *argv) != 0 && *arg == '-') { 1065 has_arg = IsOptionWithArgument(argc, argv); 1066 if (JLI_StrCCmp(arg, "-version:") == 0) { 1067 JLI_ReportErrorMessage(SPC_ERROR1); 1068 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 1069 JLI_ReportErrorMessage(SPC_ERROR2); 1070 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) { 1071 JLI_ReportErrorMessage(SPC_ERROR2); 1072 } else { 1073 if (JLI_StrCmp(arg, "-jar") == 0) 1074 jarflag = 1; 1075 if (IsWhiteSpaceOption(arg)) { 1076 if (has_arg) { 1077 argc--; 1078 argv++; 1079 arg = *argv; 1080 } 1081 } 1082 1083 /* 1084 * Checking for headless toolkit option in the some way as AWT does: 1085 * "true" means true and any other value means false 1086 */ 1087 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 1088 headlessflag = 1; 1089 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 1090 headlessflag = 0; 1091 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1092 splash_file_name = arg+8; 1093 } 1094 } 1095 argc--; 1096 argv++; 1097 } 1098 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 1099 operand = NULL; 1100 } else { 1101 argc--; 1102 operand = *argv++; 1103 } 1104 1105 /* 1106 * If there is a jar file, read the manifest. If the jarfile can't be 1107 * read, the manifest can't be read from the jar file, or the manifest 1108 * is corrupt, issue the appropriate error messages and exit. 1109 * 1110 * Even if there isn't a jar file, construct a manifest_info structure 1111 * containing the command line information. It's a convenient way to carry 1112 * this data around. 1113 */ 1114 if (jarflag && operand) { 1115 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 1116 if (res == -1) 1117 JLI_ReportErrorMessage(JAR_ERROR2, operand); 1118 else 1119 JLI_ReportErrorMessage(JAR_ERROR3, operand); 1120 exit(1); 1121 } 1122 1123 /* 1124 * Command line splash screen option should have precedence 1125 * over the manifest, so the manifest data is used only if 1126 * splash_file_name has not been initialized above during command 1127 * line parsing 1128 */ 1129 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 1130 splash_file_name = info.splashscreen_image_file_name; 1131 splash_jar_name = operand; 1132 } 1133 } else { 1134 info.manifest_version = NULL; 1135 info.main_class = NULL; 1136 info.jre_version = NULL; 1137 info.jre_restrict_search = 0; 1138 } 1139 1140 /* 1141 * Passing on splash screen info in environment variables 1142 */ 1143 if (splash_file_name && !headlessflag) { 1144 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 1145 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1146 JLI_StrCat(splash_file_entry, splash_file_name); 1147 putenv(splash_file_entry); 1148 } 1149 if (splash_jar_name && !headlessflag) { 1150 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 1151 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 1152 JLI_StrCat(splash_jar_entry, splash_jar_name); 1153 putenv(splash_jar_entry); 1154 } 1155 1156 1157 /* 1158 * "Valid" returns (other than unrecoverable errors) follow. Set 1159 * main_class as a side-effect of this routine. 1160 */ 1161 if (info.main_class != NULL) 1162 *main_class = JLI_StringDup(info.main_class); 1163 1164 if (info.jre_version == NULL) { 1165 JLI_FreeManifest(); 1166 return; 1167 } 1168 1169} 1170 1171/* 1172 * Test if the current argv is an option, i.e. with a leading `-` 1173 * and followed with an argument without a leading `-`. 1174 */ 1175static jboolean 1176IsOptionWithArgument(int argc, char** argv) { 1177 char* option; 1178 char* arg; 1179 1180 if (argc <= 1) 1181 return JNI_FALSE; 1182 1183 option = *argv; 1184 arg = *(argv+1); 1185 return *option == '-' && *arg != '-'; 1186} 1187 1188/* 1189 * Gets the option, and its argument if the option has an argument. 1190 * It will update *pargc, **pargv to the next option. 1191 */ 1192static int 1193GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) { 1194 int argc = *pargc; 1195 char** argv = *pargv; 1196 char* arg = *argv; 1197 1198 char* option = arg; 1199 char* value = NULL; 1200 char* equals = NULL; 1201 int kind = LAUNCHER_OPTION; 1202 jboolean has_arg = JNI_FALSE; 1203 1204 // check if this option may be a white-space option with an argument 1205 has_arg = IsOptionWithArgument(argc, argv); 1206 1207 argv++; --argc; 1208 if (IsLauncherOption(arg)) { 1209 if (has_arg) { 1210 value = *argv; 1211 argv++; --argc; 1212 } 1213 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION 1214 : LAUNCHER_OPTION_WITH_ARGUMENT; 1215 } else if (IsModuleOption(arg)) { 1216 kind = VM_LONG_OPTION_WITH_ARGUMENT; 1217 if (has_arg) { 1218 value = *argv; 1219 argv++; --argc; 1220 } 1221 1222 /* 1223 * Support short form alias 1224 */ 1225 if (JLI_StrCmp(arg, "-p") == 0) { 1226 option = "--module-path"; 1227 } 1228 1229 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) { 1230 value = equals+1; 1231 if (JLI_StrCCmp(arg, "--describe-module=") == 0 || 1232 JLI_StrCCmp(arg, "--module=") == 0 || 1233 JLI_StrCCmp(arg, "--class-path=") == 0) { 1234 kind = LAUNCHER_OPTION_WITH_ARGUMENT; 1235 } else { 1236 kind = VM_LONG_OPTION; 1237 } 1238 } 1239 1240 *pargc = argc; 1241 *pargv = argv; 1242 *poption = option; 1243 *pvalue = value; 1244 return kind; 1245} 1246 1247/* 1248 * Parses command line arguments. Returns JNI_FALSE if launcher 1249 * should exit without starting vm, returns JNI_TRUE if vm needs 1250 * to be started to process given options. *pret (the launcher 1251 * process return value) is set to 0 for a normal exit. 1252 */ 1253static jboolean 1254ParseArguments(int *pargc, char ***pargv, 1255 int *pmode, char **pwhat, 1256 int *pret, const char *jrepath) 1257{ 1258 int argc = *pargc; 1259 char **argv = *pargv; 1260 int mode = LM_UNKNOWN; 1261 char *arg; 1262 1263 *pret = 0; 1264 1265 while ((arg = *argv) != 0 && *arg == '-') { 1266 char *option = NULL; 1267 char *value = NULL; 1268 int kind = GetOpt(&argc, &argv, &option, &value); 1269 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0; 1270 jboolean has_arg_any_len = value != NULL; 1271 1272/* 1273 * Option to set main entry point 1274 */ 1275 if (JLI_StrCmp(arg, "-jar") == 0) { 1276 ARG_CHECK(argc, ARG_ERROR2, arg); 1277 mode = LM_JAR; 1278 } else if (JLI_StrCmp(arg, "--module") == 0 || 1279 JLI_StrCCmp(arg, "--module=") == 0 || 1280 JLI_StrCmp(arg, "-m") == 0) { 1281 REPORT_ERROR (has_arg, ARG_ERROR5, arg); 1282 SetMainModule(value); 1283 mode = LM_MODULE; 1284 if (has_arg) { 1285 *pwhat = value; 1286 break; 1287 } 1288 } else if (JLI_StrCmp(arg, "--class-path") == 0 || 1289 JLI_StrCCmp(arg, "--class-path=") == 0 || 1290 JLI_StrCmp(arg, "-classpath") == 0 || 1291 JLI_StrCmp(arg, "-cp") == 0) { 1292 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg); 1293 SetClassPath(value); 1294 mode = LM_CLASS; 1295 } else if (JLI_StrCmp(arg, "--list-modules") == 0) { 1296 listModules = JNI_TRUE; 1297 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) { 1298 showResolvedModules = JNI_TRUE; 1299 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) { 1300 AddOption("-Djdk.module.minimumBoot=true", NULL); 1301 validateModules = JNI_TRUE; 1302 } else if (JLI_StrCmp(arg, "--describe-module") == 0 || 1303 JLI_StrCCmp(arg, "--describe-module=") == 0 || 1304 JLI_StrCmp(arg, "-d") == 0) { 1305 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg); 1306 describeModule = value; 1307/* 1308 * Parse white-space options 1309 */ 1310 } else if (has_arg) { 1311 if (kind == VM_LONG_OPTION) { 1312 AddOption(option, NULL); 1313 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) { 1314 AddLongFormOption(option, value); 1315 } 1316/* 1317 * Error missing argument 1318 */ 1319 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 || 1320 JLI_StrCmp(arg, "-p") == 0 || 1321 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) { 1322 REPORT_ERROR (has_arg, ARG_ERROR4, arg); 1323 1324 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) { 1325 REPORT_ERROR (has_arg, ARG_ERROR6, arg); 1326/* 1327 * The following cases will cause the argument parsing to stop 1328 */ 1329 } else if (JLI_StrCmp(arg, "-help") == 0 || 1330 JLI_StrCmp(arg, "-h") == 0 || 1331 JLI_StrCmp(arg, "-?") == 0) { 1332 printUsage = JNI_TRUE; 1333 return JNI_TRUE; 1334 } else if (JLI_StrCmp(arg, "--help") == 0) { 1335 printUsage = JNI_TRUE; 1336 printTo = USE_STDOUT; 1337 return JNI_TRUE; 1338 } else if (JLI_StrCmp(arg, "-version") == 0) { 1339 printVersion = JNI_TRUE; 1340 return JNI_TRUE; 1341 } else if (JLI_StrCmp(arg, "--version") == 0) { 1342 printVersion = JNI_TRUE; 1343 printTo = USE_STDOUT; 1344 return JNI_TRUE; 1345 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1346 showVersion = JNI_TRUE; 1347 } else if (JLI_StrCmp(arg, "--show-version") == 0) { 1348 showVersion = JNI_TRUE; 1349 printTo = USE_STDOUT; 1350 } else if (JLI_StrCmp(arg, "--dry-run") == 0) { 1351 dryRun = JNI_TRUE; 1352 } else if (JLI_StrCmp(arg, "-X") == 0) { 1353 printXUsage = JNI_TRUE; 1354 return JNI_TRUE; 1355 } else if (JLI_StrCmp(arg, "--help-extra") == 0) { 1356 printXUsage = JNI_TRUE; 1357 printTo = USE_STDOUT; 1358 return JNI_TRUE; 1359/* 1360 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1361 * In the latter case, any SUBOPT value not recognized will default to "all" 1362 */ 1363 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1364 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1365 showSettings = arg; 1366 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1367 AddOption("-Dsun.java.launcher.diag=true", NULL); 1368 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) { 1369 AddOption("-Djdk.module.showModuleResolution=true", NULL); 1370/* 1371 * The following case provide backward compatibility with old-style 1372 * command line options. 1373 */ 1374 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1375 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1376 return JNI_FALSE; 1377 } else if (JLI_StrCmp(arg, "--full-version") == 0) { 1378 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion()); 1379 return JNI_FALSE; 1380 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1381 AddOption("-verbose:gc", NULL); 1382 } else if (JLI_StrCmp(arg, "-t") == 0) { 1383 AddOption("-Xt", NULL); 1384 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1385 AddOption("-Xtm", NULL); 1386 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1387 AddOption("-Xdebug", NULL); 1388 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1389 AddOption("-Xnoclassgc", NULL); 1390 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1391 AddOption("-Xverify:all", NULL); 1392 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1393 AddOption("-Xverify:all", NULL); 1394 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1395 AddOption("-Xverify:remote", NULL); 1396 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1397 AddOption("-Xverify:none", NULL); 1398 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1399 JLI_StrCCmp(arg, "-oss") == 0 || 1400 JLI_StrCCmp(arg, "-ms") == 0 || 1401 JLI_StrCCmp(arg, "-mx") == 0) { 1402 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1403 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1404 AddOption(tmp, NULL); 1405 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1406 JLI_StrCmp(arg, "-cs") == 0 || 1407 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1408 /* No longer supported */ 1409 JLI_ReportErrorMessage(ARG_WARN, arg); 1410 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1411 ; /* Ignore machine independent options already handled */ 1412 } else if (ProcessPlatformOption(arg)) { 1413 ; /* Processing of platform dependent options */ 1414 } else if (RemovableOption(arg)) { 1415 ; /* Do not pass option to vm. */ 1416 } else { 1417 /* java.class.path set on the command line */ 1418 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) { 1419 _have_classpath = JNI_TRUE; 1420 } 1421 AddOption(arg, NULL); 1422 } 1423 } 1424 1425 if (*pwhat == NULL && --argc >= 0) { 1426 *pwhat = *argv++; 1427 } 1428 1429 if (*pwhat == NULL) { 1430 /* LM_UNKNOWN okay for options that exit */ 1431 if (!listModules && !describeModule && !validateModules) { 1432 *pret = 1; 1433 } 1434 } else if (mode == LM_UNKNOWN) { 1435 /* default to LM_CLASS if -m, -jar and -cp options are 1436 * not specified */ 1437 if (!_have_classpath) { 1438 SetClassPath("."); 1439 } 1440 mode = LM_CLASS; 1441 } 1442 1443 if (argc >= 0) { 1444 *pargc = argc; 1445 *pargv = argv; 1446 } 1447 1448 *pmode = mode; 1449 1450 return JNI_TRUE; 1451} 1452 1453/* 1454 * Initializes the Java Virtual Machine. Also frees options array when 1455 * finished. 1456 */ 1457static jboolean 1458InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1459{ 1460 JavaVMInitArgs args; 1461 jint r; 1462 1463 memset(&args, 0, sizeof(args)); 1464 args.version = JNI_VERSION_1_2; 1465 args.nOptions = numOptions; 1466 args.options = options; 1467 args.ignoreUnrecognized = JNI_FALSE; 1468 1469 if (JLI_IsTraceLauncher()) { 1470 int i = 0; 1471 printf("JavaVM args:\n "); 1472 printf("version 0x%08lx, ", (long)args.version); 1473 printf("ignoreUnrecognized is %s, ", 1474 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1475 printf("nOptions is %ld\n", (long)args.nOptions); 1476 for (i = 0; i < numOptions; i++) 1477 printf(" option[%2d] = '%s'\n", 1478 i, args.options[i].optionString); 1479 } 1480 1481 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1482 JLI_MemFree(options); 1483 return r == JNI_OK; 1484} 1485 1486static jclass helperClass = NULL; 1487 1488jclass 1489GetLauncherHelperClass(JNIEnv *env) 1490{ 1491 if (helperClass == NULL) { 1492 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1493 "sun/launcher/LauncherHelper")); 1494 } 1495 return helperClass; 1496} 1497 1498static jmethodID makePlatformStringMID = NULL; 1499/* 1500 * Returns a new Java string object for the specified platform string. 1501 */ 1502static jstring 1503NewPlatformString(JNIEnv *env, char *s) 1504{ 1505 int len = (int)JLI_StrLen(s); 1506 jbyteArray ary; 1507 jclass cls = GetLauncherHelperClass(env); 1508 NULL_CHECK0(cls); 1509 if (s == NULL) 1510 return 0; 1511 1512 ary = (*env)->NewByteArray(env, len); 1513 if (ary != 0) { 1514 jstring str = 0; 1515 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1516 if (!(*env)->ExceptionOccurred(env)) { 1517 if (makePlatformStringMID == NULL) { 1518 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1519 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1520 } 1521 str = (*env)->CallStaticObjectMethod(env, cls, 1522 makePlatformStringMID, USE_STDERR, ary); 1523 (*env)->DeleteLocalRef(env, ary); 1524 return str; 1525 } 1526 } 1527 return 0; 1528} 1529 1530/* 1531 * Returns a new array of Java string objects for the specified 1532 * array of platform strings. 1533 */ 1534jobjectArray 1535NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1536{ 1537 jarray cls; 1538 jarray ary; 1539 int i; 1540 1541 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1542 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1543 CHECK_EXCEPTION_RETURN_VALUE(0); 1544 for (i = 0; i < strc; i++) { 1545 jstring str = NewPlatformString(env, *strv++); 1546 NULL_CHECK0(str); 1547 (*env)->SetObjectArrayElement(env, ary, i, str); 1548 (*env)->DeleteLocalRef(env, str); 1549 } 1550 return ary; 1551} 1552 1553/* 1554 * Loads a class and verifies that the main class is present and it is ok to 1555 * call it for more details refer to the java implementation. 1556 */ 1557static jclass 1558LoadMainClass(JNIEnv *env, int mode, char *name) 1559{ 1560 jmethodID mid; 1561 jstring str; 1562 jobject result; 1563 jlong start, end; 1564 jclass cls = GetLauncherHelperClass(env); 1565 NULL_CHECK0(cls); 1566 if (JLI_IsTraceLauncher()) { 1567 start = CounterGet(); 1568 } 1569 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1570 "checkAndLoadMain", 1571 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1572 1573 NULL_CHECK0(str = NewPlatformString(env, name)); 1574 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1575 USE_STDERR, mode, str)); 1576 1577 if (JLI_IsTraceLauncher()) { 1578 end = CounterGet(); 1579 printf("%ld micro seconds to load main class\n", 1580 (long)(jint)Counter2Micros(end-start)); 1581 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1582 } 1583 1584 return (jclass)result; 1585} 1586 1587static jclass 1588GetApplicationClass(JNIEnv *env) 1589{ 1590 jmethodID mid; 1591 jclass cls = GetLauncherHelperClass(env); 1592 NULL_CHECK0(cls); 1593 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1594 "getApplicationClass", 1595 "()Ljava/lang/Class;")); 1596 1597 return (*env)->CallStaticObjectMethod(env, cls, mid); 1598} 1599 1600static char* expandWildcardOnLongOpt(char* arg) { 1601 char *p, *value; 1602 size_t optLen, valueLen; 1603 p = JLI_StrChr(arg, '='); 1604 1605 if (p == NULL || p[1] == '\0') { 1606 JLI_ReportErrorMessage(ARG_ERROR1, arg); 1607 exit(1); 1608 } 1609 p++; 1610 value = (char *) JLI_WildcardExpandClasspath(p); 1611 if (p == value) { 1612 // no wildcard 1613 return arg; 1614 } 1615 1616 optLen = p - arg; 1617 valueLen = JLI_StrLen(value); 1618 p = JLI_MemAlloc(optLen + valueLen + 1); 1619 memcpy(p, arg, optLen); 1620 memcpy(p + optLen, value, valueLen); 1621 p[optLen + valueLen] = '\0'; 1622 return p; 1623} 1624 1625/* 1626 * For tools, convert command line args thus: 1627 * javac -cp foo:foo/"*" -J-ms32m ... 1628 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1629 * 1630 * Takes 4 parameters, and returns the populated arguments 1631 */ 1632static void 1633TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1634{ 1635 int argc = *pargc; 1636 char **argv = *pargv; 1637 int nargc = argc + jargc; 1638 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1639 int i; 1640 1641 *pargc = nargc; 1642 *pargv = nargv; 1643 1644 /* Copy the VM arguments (i.e. prefixed with -J) */ 1645 for (i = 0; i < jargc; i++) { 1646 const char *arg = jargv[i]; 1647 if (arg[0] == '-' && arg[1] == 'J') { 1648 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1649 } 1650 } 1651 1652 for (i = 0; i < argc; i++) { 1653 char *arg = argv[i]; 1654 if (arg[0] == '-' && arg[1] == 'J') { 1655 if (arg[2] == '\0') { 1656 JLI_ReportErrorMessage(ARG_ERROR3); 1657 exit(1); 1658 } 1659 *nargv++ = arg + 2; 1660 } 1661 } 1662 1663 /* Copy the rest of the arguments */ 1664 for (i = 0; i < jargc ; i++) { 1665 const char *arg = jargv[i]; 1666 if (arg[0] != '-' || arg[1] != 'J') { 1667 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1668 } 1669 } 1670 for (i = 0; i < argc; i++) { 1671 char *arg = argv[i]; 1672 if (arg[0] == '-') { 1673 if (arg[1] == 'J') 1674 continue; 1675 if (IsWildCardEnabled()) { 1676 if (IsClassPathOption(arg) && i < argc - 1) { 1677 *nargv++ = arg; 1678 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1679 i++; 1680 continue; 1681 } 1682 if (JLI_StrCCmp(arg, "--class-path=") == 0) { 1683 *nargv++ = expandWildcardOnLongOpt(arg); 1684 continue; 1685 } 1686 } 1687 } 1688 *nargv++ = arg; 1689 } 1690 *nargv = 0; 1691} 1692 1693/* 1694 * For our tools, we try to add 3 VM options: 1695 * -Denv.class.path=<envcp> 1696 * -Dapplication.home=<apphome> 1697 * -Djava.class.path=<appcp> 1698 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1699 * tells javac where to find binary classes through this environment 1700 * variable. Notice that users will be able to compile against our 1701 * tools classes (sun.tools.javac.Main) only if they explicitly add 1702 * tools.jar to CLASSPATH. 1703 * <apphome> is the directory where the application is installed. 1704 * <appcp> is the classpath to where our apps' classfiles are. 1705 */ 1706static jboolean 1707AddApplicationOptions(int cpathc, const char **cpathv) 1708{ 1709 char *envcp, *appcp, *apphome; 1710 char home[MAXPATHLEN]; /* application home */ 1711 char separator[] = { PATH_SEPARATOR, '\0' }; 1712 int size, i; 1713 1714 { 1715 const char *s = getenv("CLASSPATH"); 1716 if (s) { 1717 s = (char *) JLI_WildcardExpandClasspath(s); 1718 /* 40 for -Denv.class.path= */ 1719 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1720 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1721 sprintf(envcp, "-Denv.class.path=%s", s); 1722 AddOption(envcp, NULL); 1723 } 1724 } 1725 } 1726 1727 if (!GetApplicationHome(home, sizeof(home))) { 1728 JLI_ReportErrorMessage(CFG_ERROR5); 1729 return JNI_FALSE; 1730 } 1731 1732 /* 40 for '-Dapplication.home=' */ 1733 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1734 sprintf(apphome, "-Dapplication.home=%s", home); 1735 AddOption(apphome, NULL); 1736 1737 /* How big is the application's classpath? */ 1738 if (cpathc > 0) { 1739 size = 40; /* 40: "-Djava.class.path=" */ 1740 for (i = 0; i < cpathc; i++) { 1741 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1742 } 1743 appcp = (char *)JLI_MemAlloc(size + 1); 1744 JLI_StrCpy(appcp, "-Djava.class.path="); 1745 for (i = 0; i < cpathc; i++) { 1746 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1747 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1748 JLI_StrCat(appcp, separator); /* ; */ 1749 } 1750 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1751 AddOption(appcp, NULL); 1752 } 1753 return JNI_TRUE; 1754} 1755 1756/* 1757 * inject the -Dsun.java.command pseudo property into the args structure 1758 * this pseudo property is used in the HotSpot VM to expose the 1759 * Java class name and arguments to the main method to the VM. The 1760 * HotSpot VM uses this pseudo property to store the Java class name 1761 * (or jar file name) and the arguments to the class's main method 1762 * to the instrumentation memory region. The sun.java.command pseudo 1763 * property is not exported by HotSpot to the Java layer. 1764 */ 1765void 1766SetJavaCommandLineProp(char *what, int argc, char **argv) 1767{ 1768 1769 int i = 0; 1770 size_t len = 0; 1771 char* javaCommand = NULL; 1772 char* dashDstr = "-Dsun.java.command="; 1773 1774 if (what == NULL) { 1775 /* unexpected, one of these should be set. just return without 1776 * setting the property 1777 */ 1778 return; 1779 } 1780 1781 /* determine the amount of memory to allocate assuming 1782 * the individual components will be space separated 1783 */ 1784 len = JLI_StrLen(what); 1785 for (i = 0; i < argc; i++) { 1786 len += JLI_StrLen(argv[i]) + 1; 1787 } 1788 1789 /* allocate the memory */ 1790 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1791 1792 /* build the -D string */ 1793 *javaCommand = '\0'; 1794 JLI_StrCat(javaCommand, dashDstr); 1795 JLI_StrCat(javaCommand, what); 1796 1797 for (i = 0; i < argc; i++) { 1798 /* the components of the string are space separated. In 1799 * the case of embedded white space, the relationship of 1800 * the white space separated components to their true 1801 * positional arguments will be ambiguous. This issue may 1802 * be addressed in a future release. 1803 */ 1804 JLI_StrCat(javaCommand, " "); 1805 JLI_StrCat(javaCommand, argv[i]); 1806 } 1807 1808 AddOption(javaCommand, NULL); 1809} 1810 1811/* 1812 * JVM would like to know if it's created by a standard Sun launcher, or by 1813 * user native application, the following property indicates the former. 1814 */ 1815void 1816SetJavaLauncherProp() { 1817 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1818} 1819 1820/* 1821 * Prints the version information from the java.version and other properties. 1822 */ 1823static void 1824PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1825{ 1826 jclass ver; 1827 jmethodID print; 1828 1829 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps")); 1830 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1831 ver, 1832 (extraLF == JNI_TRUE) ? "println" : "print", 1833 "(Z)V" 1834 ) 1835 ); 1836 1837 (*env)->CallStaticVoidMethod(env, ver, print, printTo); 1838} 1839 1840/* 1841 * Prints all the Java settings, see the java implementation for more details. 1842 */ 1843static void 1844ShowSettings(JNIEnv *env, char *optString) 1845{ 1846 jmethodID showSettingsID; 1847 jstring joptString; 1848 jclass cls = GetLauncherHelperClass(env); 1849 NULL_CHECK(cls); 1850 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1851 "showSettings", "(ZLjava/lang/String;JJJ)V")); 1852 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1853 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1854 USE_STDERR, 1855 joptString, 1856 (jlong)initialHeapSize, 1857 (jlong)maxHeapSize, 1858 (jlong)threadStackSize); 1859} 1860 1861/** 1862 * Show resolved modules 1863 */ 1864static void 1865ShowResolvedModules(JNIEnv *env) 1866{ 1867 jmethodID showResolvedModulesID; 1868 jclass cls = GetLauncherHelperClass(env); 1869 NULL_CHECK(cls); 1870 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls, 1871 "showResolvedModules", "()V")); 1872 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID); 1873} 1874 1875/** 1876 * List observable modules 1877 */ 1878static void 1879ListModules(JNIEnv *env) 1880{ 1881 jmethodID listModulesID; 1882 jclass cls = GetLauncherHelperClass(env); 1883 NULL_CHECK(cls); 1884 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls, 1885 "listModules", "()V")); 1886 (*env)->CallStaticVoidMethod(env, cls, listModulesID); 1887} 1888 1889/** 1890 * Describe a module 1891 */ 1892static void 1893DescribeModule(JNIEnv *env, char *optString) 1894{ 1895 jmethodID describeModuleID; 1896 jstring joptString = NULL; 1897 jclass cls = GetLauncherHelperClass(env); 1898 NULL_CHECK(cls); 1899 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls, 1900 "describeModule", "(Ljava/lang/String;)V")); 1901 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1902 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString); 1903} 1904 1905/** 1906 * Validate modules 1907 */ 1908static jboolean 1909ValidateModules(JNIEnv *env) 1910{ 1911 jmethodID validateModulesID; 1912 jclass cls = GetLauncherHelperClass(env); 1913 NULL_CHECK_RETURN_VALUE(cls, JNI_FALSE); 1914 validateModulesID = (*env)->GetStaticMethodID(env, cls, "validateModules", "()Z"); 1915 NULL_CHECK_RETURN_VALUE(cls, JNI_FALSE); 1916 return (*env)->CallStaticBooleanMethod(env, cls, validateModulesID); 1917} 1918 1919/* 1920 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1921 */ 1922static void 1923PrintUsage(JNIEnv* env, jboolean doXUsage) 1924{ 1925 jmethodID initHelp, vmSelect, vmSynonym, printHelp, printXUsageMessage; 1926 jstring jprogname, vm1, vm2; 1927 int i; 1928 jclass cls = GetLauncherHelperClass(env); 1929 NULL_CHECK(cls); 1930 if (doXUsage) { 1931 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1932 "printXUsageMessage", "(Z)V")); 1933 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo); 1934 } else { 1935 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1936 "initHelpMessage", "(Ljava/lang/String;)V")); 1937 1938 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1939 "(Ljava/lang/String;Ljava/lang/String;)V")); 1940 1941 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1942 "appendVmSynonymMessage", 1943 "(Ljava/lang/String;Ljava/lang/String;)V")); 1944 1945 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1946 "printHelpMessage", "(Z)V")); 1947 1948 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1949 1950 /* Initialize the usage message with the usual preamble */ 1951 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1952 CHECK_EXCEPTION_RETURN(); 1953 1954 1955 /* Assemble the other variant part of the usage */ 1956 for (i=1; i<knownVMsCount; i++) { 1957 if (knownVMs[i].flag == VM_KNOWN) { 1958 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1959 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 1960 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1961 CHECK_EXCEPTION_RETURN(); 1962 } 1963 } 1964 for (i=1; i<knownVMsCount; i++) { 1965 if (knownVMs[i].flag == VM_ALIASED_TO) { 1966 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1967 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 1968 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1969 CHECK_EXCEPTION_RETURN(); 1970 } 1971 } 1972 1973 /* Complete the usage message and print to stderr*/ 1974 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo); 1975 } 1976 return; 1977} 1978 1979/* 1980 * Read the jvm.cfg file and fill the knownJVMs[] array. 1981 * 1982 * The functionality of the jvm.cfg file is subject to change without 1983 * notice and the mechanism will be removed in the future. 1984 * 1985 * The lexical structure of the jvm.cfg file is as follows: 1986 * 1987 * jvmcfg := { vmLine } 1988 * vmLine := knownLine 1989 * | aliasLine 1990 * | warnLine 1991 * | ignoreLine 1992 * | errorLine 1993 * | predicateLine 1994 * | commentLine 1995 * knownLine := flag "KNOWN" EOL 1996 * warnLine := flag "WARN" EOL 1997 * ignoreLine := flag "IGNORE" EOL 1998 * errorLine := flag "ERROR" EOL 1999 * aliasLine := flag "ALIASED_TO" flag EOL 2000 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 2001 * commentLine := "#" text EOL 2002 * flag := "-" identifier 2003 * 2004 * The semantics are that when someone specifies a flag on the command line: 2005 * - if the flag appears on a knownLine, then the identifier is used as 2006 * the name of the directory holding the JVM library (the name of the JVM). 2007 * - if the flag appears as the first flag on an aliasLine, the identifier 2008 * of the second flag is used as the name of the JVM. 2009 * - if the flag appears on a warnLine, the identifier is used as the 2010 * name of the JVM, but a warning is generated. 2011 * - if the flag appears on an ignoreLine, the identifier is recognized as the 2012 * name of a JVM, but the identifier is ignored and the default vm used 2013 * - if the flag appears on an errorLine, an error is generated. 2014 * - if the flag appears as the first flag on a predicateLine, and 2015 * the machine on which you are running passes the predicate indicated, 2016 * then the identifier of the second flag is used as the name of the JVM, 2017 * otherwise the identifier of the first flag is used as the name of the JVM. 2018 * If no flag is given on the command line, the first vmLine of the jvm.cfg 2019 * file determines the name of the JVM. 2020 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 2021 * since they only make sense if someone hasn't specified the name of the 2022 * JVM on the command line. 2023 * 2024 * The intent of the jvm.cfg file is to allow several JVM libraries to 2025 * be installed in different subdirectories of a single JRE installation, 2026 * for space-savings and convenience in testing. 2027 * The intent is explicitly not to provide a full aliasing or predicate 2028 * mechanism. 2029 */ 2030jint 2031ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 2032{ 2033 FILE *jvmCfg; 2034 char line[MAXPATHLEN+20]; 2035 int cnt = 0; 2036 int lineno = 0; 2037 jlong start, end; 2038 int vmType; 2039 char *tmpPtr; 2040 char *altVMName = NULL; 2041 char *serverClassVMName = NULL; 2042 static char *whiteSpace = " \t"; 2043 if (JLI_IsTraceLauncher()) { 2044 start = CounterGet(); 2045 } 2046 2047 jvmCfg = fopen(jvmCfgName, "r"); 2048 if (jvmCfg == NULL) { 2049 if (!speculative) { 2050 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 2051 exit(1); 2052 } else { 2053 return -1; 2054 } 2055 } 2056 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 2057 vmType = VM_UNKNOWN; 2058 lineno++; 2059 if (line[0] == '#') 2060 continue; 2061 if (line[0] != '-') { 2062 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 2063 } 2064 if (cnt >= knownVMsLimit) { 2065 GrowKnownVMs(cnt); 2066 } 2067 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 2068 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 2069 if (*tmpPtr == 0) { 2070 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2071 } else { 2072 /* Null-terminate this string for JLI_StringDup below */ 2073 *tmpPtr++ = 0; 2074 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2075 if (*tmpPtr == 0) { 2076 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2077 } else { 2078 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 2079 vmType = VM_KNOWN; 2080 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 2081 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2082 if (*tmpPtr != 0) { 2083 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 2084 } 2085 if (*tmpPtr == 0) { 2086 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 2087 } else { 2088 /* Null terminate altVMName */ 2089 altVMName = tmpPtr; 2090 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 2091 *tmpPtr = 0; 2092 vmType = VM_ALIASED_TO; 2093 } 2094 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 2095 vmType = VM_WARN; 2096 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 2097 vmType = VM_IGNORE; 2098 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 2099 vmType = VM_ERROR; 2100 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 2101 /* ignored */ 2102 } else { 2103 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 2104 vmType = VM_KNOWN; 2105 } 2106 } 2107 } 2108 2109 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 2110 if (vmType != VM_UNKNOWN) { 2111 knownVMs[cnt].name = JLI_StringDup(line); 2112 knownVMs[cnt].flag = vmType; 2113 switch (vmType) { 2114 default: 2115 break; 2116 case VM_ALIASED_TO: 2117 knownVMs[cnt].alias = JLI_StringDup(altVMName); 2118 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 2119 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 2120 break; 2121 } 2122 cnt++; 2123 } 2124 } 2125 fclose(jvmCfg); 2126 knownVMsCount = cnt; 2127 2128 if (JLI_IsTraceLauncher()) { 2129 end = CounterGet(); 2130 printf("%ld micro seconds to parse jvm.cfg\n", 2131 (long)(jint)Counter2Micros(end-start)); 2132 } 2133 2134 return cnt; 2135} 2136 2137 2138static void 2139GrowKnownVMs(int minimum) 2140{ 2141 struct vmdesc* newKnownVMs; 2142 int newMax; 2143 2144 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 2145 if (newMax <= minimum) { 2146 newMax = minimum; 2147 } 2148 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 2149 if (knownVMs != NULL) { 2150 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 2151 } 2152 JLI_MemFree(knownVMs); 2153 knownVMs = newKnownVMs; 2154 knownVMsLimit = newMax; 2155} 2156 2157 2158/* Returns index of VM or -1 if not found */ 2159static int 2160KnownVMIndex(const char* name) 2161{ 2162 int i; 2163 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 2164 for (i = 0; i < knownVMsCount; i++) { 2165 if (!JLI_StrCmp(name, knownVMs[i].name)) { 2166 return i; 2167 } 2168 } 2169 return -1; 2170} 2171 2172static void 2173FreeKnownVMs() 2174{ 2175 int i; 2176 for (i = 0; i < knownVMsCount; i++) { 2177 JLI_MemFree(knownVMs[i].name); 2178 knownVMs[i].name = NULL; 2179 } 2180 JLI_MemFree(knownVMs); 2181} 2182 2183/* 2184 * Displays the splash screen according to the jar file name 2185 * and image file names stored in environment variables 2186 */ 2187void 2188ShowSplashScreen() 2189{ 2190 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 2191 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 2192 int data_size; 2193 void *image_data = NULL; 2194 float scale_factor = 1; 2195 char *scaled_splash_name = NULL; 2196 jboolean isImageScaled = JNI_FALSE; 2197 size_t maxScaledImgNameLength = 0; 2198 if (file_name == NULL){ 2199 return; 2200 } 2201 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name); 2202 2203 scaled_splash_name = JLI_MemAlloc( 2204 maxScaledImgNameLength * sizeof(char)); 2205 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name, 2206 &scale_factor, 2207 scaled_splash_name, maxScaledImgNameLength); 2208 if (jar_name) { 2209 2210 if (isImageScaled) { 2211 image_data = JLI_JarUnpackFile( 2212 jar_name, scaled_splash_name, &data_size); 2213 } 2214 2215 if (!image_data) { 2216 scale_factor = 1; 2217 image_data = JLI_JarUnpackFile( 2218 jar_name, file_name, &data_size); 2219 } 2220 if (image_data) { 2221 DoSplashInit(); 2222 DoSplashSetScaleFactor(scale_factor); 2223 DoSplashLoadMemory(image_data, data_size); 2224 JLI_MemFree(image_data); 2225 } 2226 } else { 2227 DoSplashInit(); 2228 if (isImageScaled) { 2229 DoSplashSetScaleFactor(scale_factor); 2230 DoSplashLoadFile(scaled_splash_name); 2231 } else { 2232 DoSplashLoadFile(file_name); 2233 } 2234 } 2235 JLI_MemFree(scaled_splash_name); 2236 2237 DoSplashSetFileJarName(file_name, jar_name); 2238 2239 /* 2240 * Done with all command line processing and potential re-execs so 2241 * clean up the environment. 2242 */ 2243 (void)UnsetEnv(ENV_ENTRY); 2244 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 2245 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 2246 2247 JLI_MemFree(splash_jar_entry); 2248 JLI_MemFree(splash_file_entry); 2249 2250} 2251 2252const char* 2253GetFullVersion() 2254{ 2255 return _fVersion; 2256} 2257 2258const char* 2259GetProgramName() 2260{ 2261 return _program_name; 2262} 2263 2264const char* 2265GetLauncherName() 2266{ 2267 return _launcher_name; 2268} 2269 2270jboolean 2271IsJavaArgs() 2272{ 2273 return _is_java_args; 2274} 2275 2276static jboolean 2277IsWildCardEnabled() 2278{ 2279 return _wc_enabled; 2280} 2281 2282int 2283ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 2284 int argc, char **argv, 2285 int mode, char *what, int ret) 2286{ 2287 2288 /* 2289 * If user doesn't specify stack size, check if VM has a preference. 2290 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 2291 * return its default stack size through the init args structure. 2292 */ 2293 if (threadStackSize == 0) { 2294 struct JDK1_1InitArgs args1_1; 2295 memset((void*)&args1_1, 0, sizeof(args1_1)); 2296 args1_1.version = JNI_VERSION_1_1; 2297 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 2298 if (args1_1.javaStackSize > 0) { 2299 threadStackSize = args1_1.javaStackSize; 2300 } 2301 } 2302 2303 { /* Create a new thread to create JVM and invoke main method */ 2304 JavaMainArgs args; 2305 int rslt; 2306 2307 args.argc = argc; 2308 args.argv = argv; 2309 args.mode = mode; 2310 args.what = what; 2311 args.ifn = *ifn; 2312 2313 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args); 2314 /* If the caller has deemed there is an error we 2315 * simply return that, otherwise we return the value of 2316 * the callee 2317 */ 2318 return (ret != 0) ? ret : rslt; 2319 } 2320} 2321 2322static void 2323DumpState() 2324{ 2325 if (!JLI_IsTraceLauncher()) return ; 2326 printf("Launcher state:\n"); 2327 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex()); 2328 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 2329 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 2330 printf("\tprogram name:%s\n", GetProgramName()); 2331 printf("\tlauncher name:%s\n", GetLauncherName()); 2332 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 2333 printf("\tfullversion:%s\n", GetFullVersion()); 2334} 2335 2336/* 2337 * Return JNI_TRUE for an option string that has no effect but should 2338 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On 2339 * Solaris SPARC, this screening needs to be done if: 2340 * -d32 or -d64 is passed to a binary with an unmatched data model 2341 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the 2342 * exec to the proper binary). In the case of when the data model and the 2343 * requested version is matched, an exec would not occur, and these options 2344 * were erroneously passed to the vm. 2345 */ 2346jboolean 2347RemovableOption(char * option) 2348{ 2349 /* 2350 * Unconditionally remove both -d32 and -d64 options since only 2351 * the last such options has an effect; e.g. 2352 * java -d32 -d64 -d32 -version 2353 * is equivalent to 2354 * java -d32 -version 2355 */ 2356 2357 if( (JLI_StrCCmp(option, "-d32") == 0 ) || 2358 (JLI_StrCCmp(option, "-d64") == 0 ) ) 2359 return JNI_TRUE; 2360 else 2361 return JNI_FALSE; 2362} 2363 2364/* 2365 * A utility procedure to always print to stderr 2366 */ 2367void 2368JLI_ReportMessage(const char* fmt, ...) 2369{ 2370 va_list vl; 2371 va_start(vl, fmt); 2372 vfprintf(stderr, fmt, vl); 2373 fprintf(stderr, "\n"); 2374 va_end(vl); 2375} 2376 2377/* 2378 * A utility procedure to always print to stdout 2379 */ 2380void 2381JLI_ShowMessage(const char* fmt, ...) 2382{ 2383 va_list vl; 2384 va_start(vl, fmt); 2385 vfprintf(stdout, fmt, vl); 2386 fprintf(stdout, "\n"); 2387 va_end(vl); 2388} 2389