1 /* 2 * Copyright (c) 1995, 2015, 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 /* we always print to stderr */ 65 #define USE_STDERR JNI_TRUE 66 67 static jboolean printVersion = JNI_FALSE; /* print and exit */ 68 static jboolean showVersion = JNI_FALSE; /* print but continue */ 69 static jboolean printUsage = JNI_FALSE; /* print and exit*/ 70 static jboolean printXUsage = JNI_FALSE; /* print and exit*/ 71 static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */ 72 static char *showSettings = NULL; /* print but continue */ 73 static char *listModules = NULL; 74 75 static const char *_program_name; 76 static const char *_launcher_name; 77 static jboolean _is_java_args = JNI_FALSE; 78 static jboolean _have_classpath = JNI_FALSE; 79 static const char *_fVersion; 80 static jboolean _wc_enabled = JNI_FALSE; 81 static jint _ergo_policy = DEFAULT_POLICY; 82 83 /* 84 * Entries for splash screen environment variables. 85 * putenv is performed in SelectVersion. We need 86 * them in memory until UnsetEnv, so they are made static 87 * global instead of auto local. 88 */ 89 static char* splash_file_entry = NULL; 90 static char* splash_jar_entry = NULL; 91 92 /* 93 * List of VM options to be specified when the VM is created. 94 */ 95 static JavaVMOption *options; 96 static int numOptions, maxOptions; 97 98 /* 99 * Prototypes for functions internal to launcher. 100 */ 101 static void SetClassPath(const char *s); 102 static void SetModulePath(const char *s); 103 static void SetUpgradeModulePath(const char *s); 104 static void SetMainModule(const char *s); 105 static void SetAddModulesProp(const char *mods); 106 static void SetLimitModulesProp(const char *mods); 107 static void SetAddReadsProp(const jint n, const char *s); 108 static void SetAddExportsProp(const jint n, const char *s); 109 static void SetPatchProp(const jint n, const char *s); 110 static void SelectVersion(int argc, char **argv, char **main_class); 111 static void SetJvmEnvironment(int argc, char **argv); 112 static jboolean IsWhiteSpaceOptionArgument(const char* name); 113 static jboolean ParseArguments(int *pargc, char ***pargv, 114 int *pmode, char **pwhat, 115 int *pret, const char *jrepath); 116 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 117 InvocationFunctions *ifn); 118 static jstring NewPlatformString(JNIEnv *env, char *s); 119 static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 120 static jclass GetApplicationClass(JNIEnv *env); 121 122 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 123 static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 124 static void SetApplicationClassPath(const char**); 125 126 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF); 127 static void PrintUsage(JNIEnv* env, jboolean doXUsage); 128 static void ShowSettings(JNIEnv* env, char *optString); 129 static void ListModules(JNIEnv* env, char *optString); 130 131 static void SetPaths(int argc, char **argv); 132 133 static void DumpState(); 134 static jboolean RemovableOption(char *option); 135 136 /* Maximum supported entries from jvm.cfg. */ 137 #define INIT_MAX_KNOWN_VMS 10 138 139 /* Values for vmdesc.flag */ 140 enum vmdesc_flag { 141 VM_UNKNOWN = -1, 142 VM_KNOWN, 143 VM_ALIASED_TO, 144 VM_WARN, 145 VM_ERROR, 146 VM_IF_SERVER_CLASS, 147 VM_IGNORE 148 }; 149 150 struct vmdesc { 151 char *name; 152 int flag; 153 char *alias; 154 char *server_class; 155 }; 156 static struct vmdesc *knownVMs = NULL; 157 static int knownVMsCount = 0; 158 static int knownVMsLimit = 0; 159 160 static void GrowKnownVMs(int minimum); 161 static int KnownVMIndex(const char* name); 162 static void FreeKnownVMs(); 163 static jboolean IsWildCardEnabled(); 164 165 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \ 166 do { \ 167 if (AC_arg_count < 1) { \ 168 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 169 printUsage = JNI_TRUE; \ 170 *pret = 1; \ 171 return JNI_TRUE; \ 172 } \ 173 } while (JNI_FALSE) 174 175 /* 176 * Running Java code in primordial thread caused many problems. We will 177 * create a new thread to invoke JVM. See 6316197 for more information. 178 */ 179 static jlong threadStackSize = 0; /* stack size of the new thread */ 180 static jlong maxHeapSize = 0; /* max heap size */ 181 static jlong initialHeapSize = 0; /* inital heap size */ 182 183 /* 184 * A minimum -Xss stack size suitable for all platforms. 185 */ 186 #ifndef STACK_SIZE_MINIMUM 187 #define STACK_SIZE_MINIMUM (32 * KB) 188 #endif 189 190 /* 191 * Entry point. 192 */ 193 int 194 JLI_Launch(int argc, char ** argv, /* main argc, argc */ 195 int jargc, const char** jargv, /* java args */ 196 int appclassc, const char** appclassv, /* app classpath */ 197 const char* fullversion, /* full version defined */ 198 const char* dotversion, /* UNUSED dot version defined */ 199 const char* pname, /* program name */ 200 const char* lname, /* launcher name */ 201 jboolean javaargs, /* JAVA_ARGS */ 202 jboolean cpwildcard, /* classpath wildcard*/ 203 jboolean javaw, /* windows-only javaw */ 204 jint ergo /* ergonomics class policy */ 205 ) 206 { 207 int mode = LM_UNKNOWN; 208 char *what = NULL; 209 char *main_class = NULL; 210 int ret; 211 InvocationFunctions ifn; 212 jlong start, end; 213 char jvmpath[MAXPATHLEN]; 214 char jrepath[MAXPATHLEN]; 215 char jvmcfg[MAXPATHLEN]; 216 217 _fVersion = fullversion; 218 _launcher_name = lname; 219 _program_name = pname; 220 _is_java_args = javaargs; 221 _wc_enabled = cpwildcard; 222 _ergo_policy = ergo; 223 224 InitLauncher(javaw); 225 DumpState(); 226 if (JLI_IsTraceLauncher()) { 227 int i; 228 printf("Command line args:\n"); 229 for (i = 0; i < argc ; i++) { 230 printf("argv[%d] = %s\n", i, argv[i]); 231 } 232 AddOption("-Dsun.java.launcher.diag=true", NULL); 233 } 234 235 /* 236 * SelectVersion() has several responsibilities: 237 * 238 * 1) Disallow specification of another JRE. With 1.9, another 239 * version of the JRE cannot be invoked. 240 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since 241 * all mJRE directives have been stripped from the request but 242 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been 243 * invoked from the command line. 244 */ 245 SelectVersion(argc, argv, &main_class); 246 247 CreateExecutionEnvironment(&argc, &argv, 248 jrepath, sizeof(jrepath), 249 jvmpath, sizeof(jvmpath), 250 jvmcfg, sizeof(jvmcfg)); 251 252 if (!IsJavaArgs()) { 253 SetJvmEnvironment(argc,argv); 254 } 255 256 ifn.CreateJavaVM = 0; 257 ifn.GetDefaultJavaVMInitArgs = 0; 258 259 if (JLI_IsTraceLauncher()) { 260 start = CounterGet(); 261 } 262 263 if (!LoadJavaVM(jvmpath, &ifn)) { 264 return(6); 265 } 266 267 if (JLI_IsTraceLauncher()) { 268 end = CounterGet(); 269 } 270 271 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", 272 (long)(jint)Counter2Micros(end-start)); 273 274 ++argv; 275 --argc; 276 277 if (IsJavaArgs()) { 278 /* Preprocess wrapper arguments */ 279 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 280 if (!AddApplicationOptions(appclassc, appclassv)) { 281 return(1); 282 } 283 } else { 284 /* Set default CLASSPATH */ 285 char* cpath = getenv("CLASSPATH"); 286 if (cpath != NULL) { 287 SetClassPath(cpath); 288 } 289 } 290 291 /* Parse command line options; if the return value of 292 * ParseArguments is false, the program should exit. 293 */ 294 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) 295 { 296 return(ret); 297 } 298 299 /* Override class path if -jar flag was specified */ 300 if (mode == LM_JAR) { 301 SetClassPath(what); /* Override class path */ 302 } 303 304 /* set the -Dsun.java.command pseudo property */ 305 SetJavaCommandLineProp(what, argc, argv); 306 307 /* Set the -Dsun.java.launcher pseudo property */ 308 SetJavaLauncherProp(); 309 310 /* set the -Dsun.java.launcher.* platform properties */ 311 SetJavaLauncherPlatformProps(); 312 313 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); 314 } 315 /* 316 * Always detach the main thread so that it appears to have ended when 317 * the application's main method exits. This will invoke the 318 * uncaught exception handler machinery if main threw an 319 * exception. An uncaught exception handler cannot change the 320 * launcher's return code except by calling System.exit. 321 * 322 * Wait for all non-daemon threads to end, then destroy the VM. 323 * This will actually create a trivial new Java waiter thread 324 * named "DestroyJavaVM", but this will be seen as a different 325 * thread from the one that executed main, even though they are 326 * the same C thread. This allows mainThread.join() and 327 * mainThread.isAlive() to work as expected. 328 */ 329 #define LEAVE() \ 330 do { \ 331 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \ 332 JLI_ReportErrorMessage(JVM_ERROR2); \ 333 ret = 1; \ 334 } \ 335 if (JNI_TRUE) { \ 336 (*vm)->DestroyJavaVM(vm); \ 337 return ret; \ 338 } \ 339 } while (JNI_FALSE) 340 341 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \ 342 do { \ 343 if ((*env)->ExceptionOccurred(env)) { \ 344 JLI_ReportExceptionDescription(env); \ 345 LEAVE(); \ 346 } \ 347 if ((CENL_exception) == NULL) { \ 348 JLI_ReportErrorMessage(JNI_ERROR); \ 349 LEAVE(); \ 350 } \ 351 } while (JNI_FALSE) 352 353 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \ 354 do { \ 355 if ((*env)->ExceptionOccurred(env)) { \ 356 JLI_ReportExceptionDescription(env); \ 357 ret = (CEL_return_value); \ 358 LEAVE(); \ 359 } \ 360 } while (JNI_FALSE) 361 362 363 int JNICALL 364 JavaMain(void * _args) 365 { 366 JavaMainArgs *args = (JavaMainArgs *)_args; 367 int argc = args->argc; 368 char **argv = args->argv; 369 int mode = args->mode; 370 char *what = args->what; 371 InvocationFunctions ifn = args->ifn; 372 373 JavaVM *vm = 0; 374 JNIEnv *env = 0; 375 jclass mainClass = NULL; 376 jclass appClass = NULL; // actual application class being launched 377 jmethodID mainID; 378 jobjectArray mainArgs; 379 int ret = 0; 380 jlong start, end; 381 382 RegisterThread(); 383 384 /* Initialize the virtual machine */ 385 start = CounterGet(); 386 if (!InitializeJVM(&vm, &env, &ifn)) { 387 JLI_ReportErrorMessage(JVM_ERROR1); 388 exit(1); 389 } 390 391 if (showSettings != NULL) { 392 ShowSettings(env, showSettings); 393 CHECK_EXCEPTION_LEAVE(1); 394 } 395 396 if (listModules != NULL) { 397 ListModules(env, listModules); 398 CHECK_EXCEPTION_LEAVE(1); 399 LEAVE(); 400 } 401 402 if (printVersion || showVersion) { 403 PrintJavaVersion(env, showVersion); 404 CHECK_EXCEPTION_LEAVE(0); 405 if (printVersion) { 406 LEAVE(); 407 } 408 } 409 410 /* If the user specified neither a class name nor a JAR file */ 411 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 412 PrintUsage(env, printXUsage); 413 CHECK_EXCEPTION_LEAVE(1); 414 LEAVE(); 415 } 416 417 FreeKnownVMs(); /* after last possible PrintUsage() */ 418 419 if (JLI_IsTraceLauncher()) { 420 end = CounterGet(); 421 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 422 (long)(jint)Counter2Micros(end-start)); 423 } 424 425 /* At this stage, argc/argv have the application's arguments */ 426 if (JLI_IsTraceLauncher()){ 427 int i; 428 printf("%s is '%s'\n", launchModeNames[mode], what); 429 printf("App's argc is %d\n", argc); 430 for (i=0; i < argc; i++) { 431 printf(" argv[%2d] = '%s'\n", i, argv[i]); 432 } 433 } 434 435 ret = 1; 436 437 /* 438 * Get the application's main class. 439 * 440 * See bugid 5030265. The Main-Class name has already been parsed 441 * from the manifest, but not parsed properly for UTF-8 support. 442 * Hence the code here ignores the value previously extracted and 443 * uses the pre-existing code to reextract the value. This is 444 * possibly an end of release cycle expedient. However, it has 445 * also been discovered that passing some character sets through 446 * the environment has "strange" behavior on some variants of 447 * Windows. Hence, maybe the manifest parsing code local to the 448 * launcher should never be enhanced. 449 * 450 * Hence, future work should either: 451 * 1) Correct the local parsing code and verify that the 452 * Main-Class attribute gets properly passed through 453 * all environments, 454 * 2) Remove the vestages of maintaining main_class through 455 * the environment (and remove these comments). 456 * 457 * This method also correctly handles launching existing JavaFX 458 * applications that may or may not have a Main-Class manifest entry. 459 */ 460 mainClass = LoadMainClass(env, mode, what); 461 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 462 /* 463 * In some cases when launching an application that needs a helper, e.g., a 464 * JavaFX application with no main method, the mainClass will not be the 465 * applications own main class but rather a helper class. To keep things 466 * consistent in the UI we need to track and report the application main class. 467 */ 468 appClass = GetApplicationClass(env); 469 NULL_CHECK_RETURN_VALUE(appClass, -1); 470 /* 471 * PostJVMInit uses the class name as the application name for GUI purposes, 472 * for example, on OSX this sets the application name in the menu bar for 473 * both SWT and JavaFX. So we'll pass the actual application class here 474 * instead of mainClass as that may be a launcher or helper class instead 475 * of the application class. 476 */ 477 PostJVMInit(env, appClass, vm); 478 CHECK_EXCEPTION_LEAVE(1); 479 /* 480 * The LoadMainClass not only loads the main class, it will also ensure 481 * that the main method's signature is correct, therefore further checking 482 * is not required. The main method is invoked here so that extraneous java 483 * stacks are not in the application stack trace. 484 */ 485 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 486 "([Ljava/lang/String;)V"); 487 CHECK_EXCEPTION_NULL_LEAVE(mainID); 488 489 /* Build platform specific argument array */ 490 mainArgs = CreateApplicationArgs(env, argv, argc); 491 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 492 493 if (dryRun) { 494 ret = 0; 495 } else { 496 /* Invoke main method. */ 497 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 498 499 /* 500 * The launcher's exit code (in the absence of calls to 501 * System.exit) will be non-zero if main threw an exception. 502 */ 503 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 504 } 505 LEAVE(); 506 } 507 508 /* 509 * Test if the given option name has a whitespace separated argument. 510 */ 511 jboolean 512 IsWhiteSpaceOptionArgument(const char* name) { 513 return JLI_StrCmp(name, "-classpath") == 0 || 514 JLI_StrCmp(name, "-cp") == 0 || 515 JLI_StrCmp(name, "-modulepath") == 0 || 516 JLI_StrCmp(name, "-mp") == 0 || 517 JLI_StrCmp(name, "-upgrademodulepath") == 0 || 518 JLI_StrCmp(name, "-addmods") == 0 || 519 JLI_StrCmp(name, "-limitmods") == 0; 520 } 521 522 /* 523 * Checks the command line options to find which JVM type was 524 * specified. If no command line option was given for the JVM type, 525 * the default type is used. The environment variable 526 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 527 * checked as ways of specifying which JVM type to invoke. 528 */ 529 char * 530 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 531 int i, argi; 532 int argc; 533 char **newArgv; 534 int newArgvIdx = 0; 535 int isVMType; 536 int jvmidx = -1; 537 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 538 539 argc = *pargc; 540 541 /* To make things simpler we always copy the argv array */ 542 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 543 544 /* The program name is always present */ 545 newArgv[newArgvIdx++] = (*argv)[0]; 546 547 for (argi = 1; argi < argc; argi++) { 548 char *arg = (*argv)[argi]; 549 isVMType = 0; 550 551 if (IsJavaArgs()) { 552 if (arg[0] != '-') { 553 newArgv[newArgvIdx++] = arg; 554 continue; 555 } 556 } else { 557 if (IsWhiteSpaceOptionArgument(arg)) { 558 newArgv[newArgvIdx++] = arg; 559 argi++; 560 if (argi < argc) { 561 newArgv[newArgvIdx++] = (*argv)[argi]; 562 } 563 continue; 564 } 565 if (arg[0] != '-') break; 566 } 567 568 /* Did the user pass an explicit VM type? */ 569 i = KnownVMIndex(arg); 570 if (i >= 0) { 571 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 572 isVMType = 1; 573 *pargc = *pargc - 1; 574 } 575 576 /* Did the user specify an "alternate" VM? */ 577 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 578 isVMType = 1; 579 jvmtype = arg+((arg[1]=='X')? 10 : 12); 580 jvmidx = -1; 581 } 582 583 if (!isVMType) { 584 newArgv[newArgvIdx++] = arg; 585 } 586 } 587 588 /* 589 * Finish copying the arguments if we aborted the above loop. 590 * NOTE that if we aborted via "break" then we did NOT copy the 591 * last argument above, and in addition argi will be less than 592 * argc. 593 */ 594 while (argi < argc) { 595 newArgv[newArgvIdx++] = (*argv)[argi]; 596 argi++; 597 } 598 599 /* argv is null-terminated */ 600 newArgv[newArgvIdx] = 0; 601 602 /* Copy back argv */ 603 *argv = newArgv; 604 *pargc = newArgvIdx; 605 606 /* use the default VM type if not specified (no alias processing) */ 607 if (jvmtype == NULL) { 608 char* result = knownVMs[0].name+1; 609 /* Use a different VM type if we are on a server class machine? */ 610 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && 611 (ServerClassMachine() == JNI_TRUE)) { 612 result = knownVMs[0].server_class+1; 613 } 614 JLI_TraceLauncher("Default VM: %s\n", result); 615 return result; 616 } 617 618 /* if using an alternate VM, no alias processing */ 619 if (jvmidx < 0) 620 return jvmtype; 621 622 /* Resolve aliases first */ 623 { 624 int loopCount = 0; 625 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 626 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 627 628 if (loopCount > knownVMsCount) { 629 if (!speculative) { 630 JLI_ReportErrorMessage(CFG_ERROR1); 631 exit(1); 632 } else { 633 return "ERROR"; 634 /* break; */ 635 } 636 } 637 638 if (nextIdx < 0) { 639 if (!speculative) { 640 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 641 exit(1); 642 } else { 643 return "ERROR"; 644 } 645 } 646 jvmidx = nextIdx; 647 jvmtype = knownVMs[jvmidx].name+1; 648 loopCount++; 649 } 650 } 651 652 switch (knownVMs[jvmidx].flag) { 653 case VM_WARN: 654 if (!speculative) { 655 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 656 } 657 /* fall through */ 658 case VM_IGNORE: 659 jvmtype = knownVMs[jvmidx=0].name + 1; 660 /* fall through */ 661 case VM_KNOWN: 662 break; 663 case VM_ERROR: 664 if (!speculative) { 665 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 666 exit(1); 667 } else { 668 return "ERROR"; 669 } 670 } 671 672 return jvmtype; 673 } 674 675 /* 676 * static void SetJvmEnvironment(int argc, char **argv); 677 * Is called just before the JVM is loaded. We can set env variables 678 * that are consumed by the JVM. This function is non-destructive, 679 * leaving the arg list intact. The first use is for the JVM flag 680 * -XX:NativeMemoryTracking=value. 681 */ 682 static void 683 SetJvmEnvironment(int argc, char **argv) { 684 685 static const char* NMT_Env_Name = "NMT_LEVEL_"; 686 int i; 687 for (i = 0; i < argc; i++) { 688 char *arg = argv[i]; 689 /* 690 * Since this must be a VM flag we stop processing once we see 691 * an argument the launcher would not have processed beyond (such 692 * as -version or -h), or an argument that indicates the following 693 * arguments are for the application (i.e. the main class name, or 694 * the -jar argument). 695 */ 696 if (i > 0) { 697 char *prev = argv[i - 1]; 698 // skip non-dash arg preceded by class path specifiers 699 if (*arg != '-' && IsWhiteSpaceOptionArgument(prev)) { 700 continue; 701 } 702 703 if (*arg != '-' 704 || JLI_StrCmp(arg, "-version") == 0 705 || JLI_StrCmp(arg, "-fullversion") == 0 706 || JLI_StrCmp(arg, "-help") == 0 707 || JLI_StrCmp(arg, "-?") == 0 708 || JLI_StrCmp(arg, "-jar") == 0 709 || JLI_StrCmp(arg, "-X") == 0) { 710 return; 711 } 712 } 713 /* 714 * The following case checks for "-XX:NativeMemoryTracking=value". 715 * If value is non null, an environmental variable set to this value 716 * will be created to be used by the JVM. 717 * The argument is passed to the JVM, which will check validity. 718 * The JVM is responsible for removing the env variable. 719 */ 720 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { 721 int retval; 722 // get what follows this parameter, include "=" 723 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); 724 if (JLI_StrLen(arg) > pnlen) { 725 char* value = arg + pnlen; 726 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits 727 728 /* 729 * ensures that malloc successful 730 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call 731 * that could store the address. 732 */ 733 char * pbuf = (char*)JLI_MemAlloc(pbuflen); 734 735 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); 736 retval = JLI_PutEnv(pbuf); 737 if (JLI_IsTraceLauncher()) { 738 char* envName; 739 char* envBuf; 740 741 // ensures that malloc successful 742 envName = (char*)JLI_MemAlloc(pbuflen); 743 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); 744 745 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); 746 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); 747 envBuf = getenv(envName); 748 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); 749 free(envName); 750 } 751 752 } 753 754 } 755 756 } 757 } 758 759 /* copied from HotSpot function "atomll()" */ 760 static int 761 parse_size(const char *s, jlong *result) { 762 jlong n = 0; 763 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n); 764 if (args_read != 1) { 765 return 0; 766 } 767 while (*s != '\0' && *s >= '0' && *s <= '9') { 768 s++; 769 } 770 // 4705540: illegal if more characters are found after the first non-digit 771 if (JLI_StrLen(s) > 1) { 772 return 0; 773 } 774 switch (*s) { 775 case 'T': case 't': 776 *result = n * GB * KB; 777 return 1; 778 case 'G': case 'g': 779 *result = n * GB; 780 return 1; 781 case 'M': case 'm': 782 *result = n * MB; 783 return 1; 784 case 'K': case 'k': 785 *result = n * KB; 786 return 1; 787 case '\0': 788 *result = n; 789 return 1; 790 default: 791 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 792 return 0; 793 } 794 } 795 796 /* 797 * Adds a new VM option with the given name and value. 798 */ 799 void 800 AddOption(char *str, void *info) 801 { 802 /* 803 * Expand options array if needed to accommodate at least one more 804 * VM option. 805 */ 806 if (numOptions >= maxOptions) { 807 if (options == 0) { 808 maxOptions = 4; 809 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 810 } else { 811 JavaVMOption *tmp; 812 maxOptions *= 2; 813 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 814 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 815 JLI_MemFree(options); 816 options = tmp; 817 } 818 } 819 options[numOptions].optionString = str; 820 options[numOptions++].extraInfo = info; 821 822 if (JLI_StrCCmp(str, "-Xss") == 0) { 823 jlong tmp; 824 if (parse_size(str + 4, &tmp)) { 825 threadStackSize = tmp; 826 /* 827 * Make sure the thread stack size is big enough that we won't get a stack 828 * overflow before the JVM startup code can check to make sure the stack 829 * is big enough. 830 */ 831 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) { 832 threadStackSize = STACK_SIZE_MINIMUM; 833 } 834 } 835 } 836 837 if (JLI_StrCCmp(str, "-Xmx") == 0) { 838 jlong tmp; 839 if (parse_size(str + 4, &tmp)) { 840 maxHeapSize = tmp; 841 } 842 } 843 844 if (JLI_StrCCmp(str, "-Xms") == 0) { 845 jlong tmp; 846 if (parse_size(str + 4, &tmp)) { 847 initialHeapSize = tmp; 848 } 849 } 850 } 851 852 static void 853 SetClassPath(const char *s) 854 { 855 char *def; 856 const char *orig = s; 857 static const char format[] = "-Djava.class.path=%s"; 858 /* 859 * usually we should not get a null pointer, but there are cases where 860 * we might just get one, in which case we simply ignore it, and let the 861 * caller deal with it 862 */ 863 if (s == NULL) 864 return; 865 s = JLI_WildcardExpandClasspath(s); 866 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 867 // s is became corrupted after expanding wildcards 868 return; 869 def = JLI_MemAlloc(sizeof(format) 870 - 2 /* strlen("%s") */ 871 + JLI_StrLen(s)); 872 sprintf(def, format, s); 873 AddOption(def, NULL); 874 if (s != orig) 875 JLI_MemFree((char *) s); 876 _have_classpath = JNI_TRUE; 877 } 878 879 static void 880 SetModulePath(const char *s) 881 { 882 char *def; 883 const char *orig = s; 884 static const char format[] = "-Djdk.module.path=%s"; 885 if (s == NULL) 886 return; 887 s = JLI_WildcardExpandClasspath(s); 888 def = JLI_MemAlloc(sizeof(format) 889 - 2 /* strlen("%s") */ 890 + JLI_StrLen(s)); 891 sprintf(def, format, s); 892 AddOption(def, NULL); 893 if (s != orig) 894 JLI_MemFree((char *) s); 895 } 896 897 static void 898 SetUpgradeModulePath(const char *s) 899 { 900 char *def; 901 const char *orig = s; 902 static const char format[] = "-Djdk.upgrade.module.path=%s"; 903 if (s == NULL) 904 return; 905 s = JLI_WildcardExpandClasspath(s); 906 def = JLI_MemAlloc(sizeof(format) 907 - 2 /* strlen("%s") */ 908 + JLI_StrLen(s)); 909 sprintf(def, format, s); 910 AddOption(def, NULL); 911 if (s != orig) 912 JLI_MemFree((char *) s); 913 } 914 915 static void 916 SetMainModule(const char *s) 917 { 918 static const char format[] = "-Djdk.module.main=%s"; 919 char* slash = JLI_StrChr(s, '/'); 920 size_t s_len, def_len; 921 char *def; 922 923 /* value may be <module> or <module>/<mainclass> */ 924 if (slash == NULL) { 925 s_len = JLI_StrLen(s); 926 } else { 927 s_len = (size_t) (slash - s); 928 } 929 def_len = sizeof(format) 930 - 2 /* strlen("%s") */ 931 + s_len; 932 def = JLI_MemAlloc(def_len); 933 JLI_Snprintf(def, def_len, format, s); 934 AddOption(def, NULL); 935 } 936 937 static void 938 SetAddModulesProp(const char *mods) { 939 size_t buflen = JLI_StrLen(mods) + 40; 940 char *prop = (char *)JLI_MemAlloc(buflen); 941 JLI_Snprintf(prop, buflen, "-Djdk.launcher.addmods=%s", mods); 942 AddOption(prop, NULL); 943 } 944 945 static void 946 SetLimitModulesProp(const char *mods) { 947 size_t buflen = JLI_StrLen(mods) + 40; 948 char *prop = (char *)JLI_MemAlloc(buflen); 949 JLI_Snprintf(prop, buflen, "-Djdk.launcher.limitmods=%s", mods); 950 AddOption(prop, NULL); 951 } 952 953 static void 954 SetAddReadsProp(const jint n, const char *s) { 955 size_t buflen = JLI_StrLen(s) + 40; 956 char *prop = (char *)JLI_MemAlloc(buflen); 957 JLI_Snprintf(prop, buflen, "-Djdk.launcher.addreads.%d=%s", n, s); 958 AddOption(prop, NULL); 959 } 960 961 static void 962 SetAddExportsProp(const jint n, const char *s) { 963 size_t buflen = JLI_StrLen(s) + 40; 964 char *prop = (char *)JLI_MemAlloc(buflen); 965 JLI_Snprintf(prop, buflen, "-Djdk.launcher.addexports.%d=%s", n, s); 966 AddOption(prop, NULL); 967 } 968 969 static void 970 SetPatchProp(const jint n, const char *s) { 971 size_t buflen = JLI_StrLen(s) + 40; 972 char *prop = (char *)JLI_MemAlloc(buflen); 973 JLI_Snprintf(prop, buflen, "-Djdk.launcher.patch.%d=%s", n, s); 974 AddOption(prop, NULL); 975 } 976 977 /* 978 * The SelectVersion() routine ensures that an appropriate version of 979 * the JRE is running. The specification for the appropriate version 980 * is obtained from either the manifest of a jar file (preferred) or 981 * from command line options. 982 * The routine also parses splash screen command line options and 983 * passes on their values in private environment variables. 984 */ 985 static void 986 SelectVersion(int argc, char **argv, char **main_class) 987 { 988 char *arg; 989 char *operand; 990 char *version = NULL; 991 char *jre = NULL; 992 int jarflag = 0; 993 int headlessflag = 0; 994 int restrict_search = -1; /* -1 implies not known */ 995 manifest_info info; 996 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 997 char *splash_file_name = NULL; 998 char *splash_jar_name = NULL; 999 char *env_in; 1000 int res; 1001 1002 /* 1003 * If the version has already been selected, set *main_class 1004 * with the value passed through the environment (if any) and 1005 * simply return. 1006 */ 1007 1008 /* 1009 * This environmental variable can be set by mJRE capable JREs 1010 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been 1011 * stripped by those JREs. This environmental variable allows 1.9+ 1012 * JREs to be started by these mJRE capable JREs. 1013 * Note that mJRE directives in the jar manifest file would have been 1014 * ignored for a JRE started by another JRE... 1015 * .. skipped for JRE 1.5 and beyond. 1016 * .. not even checked for pre 1.5. 1017 */ 1018 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 1019 if (*env_in != '\0') 1020 *main_class = JLI_StringDup(env_in); 1021 return; 1022 } 1023 1024 /* 1025 * Scan through the arguments for options relevant to multiple JRE 1026 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8. 1027 * 1028 * This capability is no longer available with JRE versions 1.9 and later. 1029 * These command line options are reported as errors. 1030 */ 1031 argc--; 1032 argv++; 1033 while ((arg = *argv) != 0 && *arg == '-') { 1034 if (JLI_StrCCmp(arg, "-version:") == 0) { 1035 JLI_ReportErrorMessage(SPC_ERROR1); 1036 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 1037 JLI_ReportErrorMessage(SPC_ERROR2); 1038 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) { 1039 JLI_ReportErrorMessage(SPC_ERROR2); 1040 } else { 1041 if (JLI_StrCmp(arg, "-jar") == 0) 1042 jarflag = 1; 1043 if (IsWhiteSpaceOptionArgument(arg) && (argc >= 2)) { 1044 argc--; 1045 argv++; 1046 arg = *argv; 1047 } 1048 1049 /* 1050 * Checking for headless toolkit option in the some way as AWT does: 1051 * "true" means true and any other value means false 1052 */ 1053 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 1054 headlessflag = 1; 1055 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 1056 headlessflag = 0; 1057 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1058 splash_file_name = arg+8; 1059 } 1060 } 1061 argc--; 1062 argv++; 1063 } 1064 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 1065 operand = NULL; 1066 } else { 1067 argc--; 1068 operand = *argv++; 1069 } 1070 1071 /* 1072 * If there is a jar file, read the manifest. If the jarfile can't be 1073 * read, the manifest can't be read from the jar file, or the manifest 1074 * is corrupt, issue the appropriate error messages and exit. 1075 * 1076 * Even if there isn't a jar file, construct a manifest_info structure 1077 * containing the command line information. It's a convenient way to carry 1078 * this data around. 1079 */ 1080 if (jarflag && operand) { 1081 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 1082 if (res == -1) 1083 JLI_ReportErrorMessage(JAR_ERROR2, operand); 1084 else 1085 JLI_ReportErrorMessage(JAR_ERROR3, operand); 1086 exit(1); 1087 } 1088 1089 /* 1090 * Command line splash screen option should have precedence 1091 * over the manifest, so the manifest data is used only if 1092 * splash_file_name has not been initialized above during command 1093 * line parsing 1094 */ 1095 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 1096 splash_file_name = info.splashscreen_image_file_name; 1097 splash_jar_name = operand; 1098 } 1099 } else { 1100 info.manifest_version = NULL; 1101 info.main_class = NULL; 1102 info.jre_version = NULL; 1103 info.jre_restrict_search = 0; 1104 } 1105 1106 /* 1107 * Passing on splash screen info in environment variables 1108 */ 1109 if (splash_file_name && !headlessflag) { 1110 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 1111 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1112 JLI_StrCat(splash_file_entry, splash_file_name); 1113 putenv(splash_file_entry); 1114 } 1115 if (splash_jar_name && !headlessflag) { 1116 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 1117 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 1118 JLI_StrCat(splash_jar_entry, splash_jar_name); 1119 putenv(splash_jar_entry); 1120 } 1121 1122 1123 /* 1124 * "Valid" returns (other than unrecoverable errors) follow. Set 1125 * main_class as a side-effect of this routine. 1126 */ 1127 if (info.main_class != NULL) 1128 *main_class = JLI_StringDup(info.main_class); 1129 1130 if (info.jre_version == NULL) { 1131 JLI_FreeManifest(); 1132 return; 1133 } 1134 1135 } 1136 1137 /* 1138 * Parses command line arguments. Returns JNI_FALSE if launcher 1139 * should exit without starting vm, returns JNI_TRUE if vm needs 1140 * to be started to process given options. *pret (the launcher 1141 * process return value) is set to 0 for a normal exit. 1142 */ 1143 static jboolean 1144 ParseArguments(int *pargc, char ***pargv, 1145 int *pmode, char **pwhat, 1146 int *pret, const char *jrepath) 1147 { 1148 int argc = *pargc; 1149 char **argv = *pargv; 1150 int mode = LM_UNKNOWN; 1151 char *arg; 1152 1153 *pret = 0; 1154 1155 while ((arg = *argv) != 0 && *arg == '-') { 1156 argv++; --argc; 1157 if (JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) { 1158 ARG_CHECK (argc, ARG_ERROR1, arg); 1159 SetClassPath(*argv); 1160 mode = LM_CLASS; 1161 argv++; --argc; 1162 } else if (JLI_StrCmp(arg, "-modulepath") == 0 || JLI_StrCmp(arg, "-mp") == 0) { 1163 ARG_CHECK (argc, ARG_ERROR4, arg); 1164 SetModulePath(*argv); 1165 argv++; --argc; 1166 } else if (JLI_StrCmp(arg, "-upgrademodulepath") == 0) { 1167 ARG_CHECK (argc, ARG_ERROR4, arg); 1168 SetUpgradeModulePath(*argv); 1169 argv++; --argc; 1170 } else if (JLI_StrCmp(arg, "-jar") == 0) { 1171 ARG_CHECK (argc, ARG_ERROR2, arg); 1172 mode = LM_JAR; 1173 } else if (JLI_StrCmp(arg, "-m") == 0) { 1174 ARG_CHECK (argc, ARG_ERROR5, arg); 1175 SetMainModule(*argv); 1176 mode = LM_MODULE; 1177 } else if (JLI_StrCmp(arg, "-addmods") == 0) { 1178 ARG_CHECK (argc, ARG_ERROR6, arg); 1179 SetAddModulesProp(*argv); 1180 argv++; --argc; 1181 } else if (JLI_StrCmp(arg, "-limitmods") == 0) { 1182 ARG_CHECK (argc, ARG_ERROR6, arg); 1183 SetLimitModulesProp(*argv); 1184 argv++; --argc; 1185 } else if (JLI_StrCmp(arg, "-listmods") == 0 || 1186 JLI_StrCCmp(arg, "-listmods:") == 0) { 1187 listModules = arg; 1188 return JNI_TRUE; 1189 } else if (JLI_StrCCmp(arg, "-XaddReads:") == 0) { 1190 static jint n; 1191 char *value = arg + 11; 1192 SetAddReadsProp(n++, value); 1193 } else if (JLI_StrCCmp(arg, "-XaddExports:") == 0) { 1194 static jint n; 1195 char *value = arg + 13; 1196 SetAddExportsProp(n++, value); 1197 } else if (JLI_StrCCmp(arg, "-Xpatch:") == 0) { 1198 static jint n; 1199 char *value = arg + 8; 1200 SetPatchProp(n++, value); 1201 } else if (JLI_StrCmp(arg, "-help") == 0 || 1202 JLI_StrCmp(arg, "-h") == 0 || 1203 JLI_StrCmp(arg, "-?") == 0) { 1204 printUsage = JNI_TRUE; 1205 return JNI_TRUE; 1206 } else if (JLI_StrCmp(arg, "-version") == 0) { 1207 printVersion = JNI_TRUE; 1208 return JNI_TRUE; 1209 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1210 showVersion = JNI_TRUE; 1211 } else if (JLI_StrCmp(arg, "--dry-run") == 0) { 1212 dryRun = JNI_TRUE; 1213 } else if (JLI_StrCmp(arg, "-X") == 0) { 1214 printXUsage = JNI_TRUE; 1215 return JNI_TRUE; 1216 /* 1217 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1218 * In the latter case, any SUBOPT value not recognized will default to "all" 1219 */ 1220 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1221 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1222 showSettings = arg; 1223 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1224 AddOption("-Dsun.java.launcher.diag=true", NULL); 1225 AddOption("-Djdk.launcher.traceResolver=true", NULL); 1226 } else if (JLI_StrCmp(arg, "-Xdiag:resolver") == 0) { 1227 AddOption("-Djdk.launcher.traceResolver=true", NULL); 1228 /* 1229 * The following case provide backward compatibility with old-style 1230 * command line options. 1231 */ 1232 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1233 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1234 return JNI_FALSE; 1235 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1236 AddOption("-verbose:gc", NULL); 1237 } else if (JLI_StrCmp(arg, "-t") == 0) { 1238 AddOption("-Xt", NULL); 1239 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1240 AddOption("-Xtm", NULL); 1241 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1242 AddOption("-Xdebug", NULL); 1243 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1244 AddOption("-Xnoclassgc", NULL); 1245 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1246 AddOption("-Xverify:all", NULL); 1247 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1248 AddOption("-Xverify:all", NULL); 1249 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1250 AddOption("-Xverify:remote", NULL); 1251 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1252 AddOption("-Xverify:none", NULL); 1253 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1254 JLI_StrCCmp(arg, "-oss") == 0 || 1255 JLI_StrCCmp(arg, "-ms") == 0 || 1256 JLI_StrCCmp(arg, "-mx") == 0) { 1257 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1258 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1259 AddOption(tmp, NULL); 1260 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1261 JLI_StrCmp(arg, "-cs") == 0 || 1262 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1263 /* No longer supported */ 1264 JLI_ReportErrorMessage(ARG_WARN, arg); 1265 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1266 ; /* Ignore machine independent options already handled */ 1267 } else if (ProcessPlatformOption(arg)) { 1268 ; /* Processing of platform dependent options */ 1269 } else if (RemovableOption(arg)) { 1270 ; /* Do not pass option to vm. */ 1271 } else { 1272 /* java.class.path set on the command line */ 1273 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) { 1274 _have_classpath = JNI_TRUE; 1275 } 1276 AddOption(arg, NULL); 1277 } 1278 } 1279 1280 if (--argc >= 0) { 1281 *pwhat = *argv++; 1282 } 1283 1284 if (*pwhat == NULL) { 1285 *pret = 1; 1286 } else if (mode == LM_UNKNOWN) { 1287 /* default to LM_CLASS if -m, -jar and -cp options are 1288 * not specified */ 1289 if (!_have_classpath) { 1290 SetClassPath("."); 1291 } 1292 mode = LM_CLASS; 1293 } 1294 1295 if (argc >= 0) { 1296 *pargc = argc; 1297 *pargv = argv; 1298 } 1299 1300 *pmode = mode; 1301 1302 return JNI_TRUE; 1303 } 1304 1305 /* 1306 * Initializes the Java Virtual Machine. Also frees options array when 1307 * finished. 1308 */ 1309 static jboolean 1310 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1311 { 1312 JavaVMInitArgs args; 1313 jint r; 1314 1315 memset(&args, 0, sizeof(args)); 1316 args.version = JNI_VERSION_1_2; 1317 args.nOptions = numOptions; 1318 args.options = options; 1319 args.ignoreUnrecognized = JNI_FALSE; 1320 1321 if (JLI_IsTraceLauncher()) { 1322 int i = 0; 1323 printf("JavaVM args:\n "); 1324 printf("version 0x%08lx, ", (long)args.version); 1325 printf("ignoreUnrecognized is %s, ", 1326 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1327 printf("nOptions is %ld\n", (long)args.nOptions); 1328 for (i = 0; i < numOptions; i++) 1329 printf(" option[%2d] = '%s'\n", 1330 i, args.options[i].optionString); 1331 } 1332 1333 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1334 JLI_MemFree(options); 1335 return r == JNI_OK; 1336 } 1337 1338 static jclass helperClass = NULL; 1339 1340 jclass 1341 GetLauncherHelperClass(JNIEnv *env) 1342 { 1343 if (helperClass == NULL) { 1344 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1345 "sun/launcher/LauncherHelper")); 1346 } 1347 return helperClass; 1348 } 1349 1350 static jmethodID makePlatformStringMID = NULL; 1351 /* 1352 * Returns a new Java string object for the specified platform string. 1353 */ 1354 static jstring 1355 NewPlatformString(JNIEnv *env, char *s) 1356 { 1357 int len = (int)JLI_StrLen(s); 1358 jbyteArray ary; 1359 jclass cls = GetLauncherHelperClass(env); 1360 NULL_CHECK0(cls); 1361 if (s == NULL) 1362 return 0; 1363 1364 ary = (*env)->NewByteArray(env, len); 1365 if (ary != 0) { 1366 jstring str = 0; 1367 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1368 if (!(*env)->ExceptionOccurred(env)) { 1369 if (makePlatformStringMID == NULL) { 1370 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1371 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1372 } 1373 str = (*env)->CallStaticObjectMethod(env, cls, 1374 makePlatformStringMID, USE_STDERR, ary); 1375 (*env)->DeleteLocalRef(env, ary); 1376 return str; 1377 } 1378 } 1379 return 0; 1380 } 1381 1382 /* 1383 * Returns a new array of Java string objects for the specified 1384 * array of platform strings. 1385 */ 1386 jobjectArray 1387 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1388 { 1389 jarray cls; 1390 jarray ary; 1391 int i; 1392 1393 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1394 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1395 for (i = 0; i < strc; i++) { 1396 jstring str = NewPlatformString(env, *strv++); 1397 NULL_CHECK0(str); 1398 (*env)->SetObjectArrayElement(env, ary, i, str); 1399 (*env)->DeleteLocalRef(env, str); 1400 } 1401 return ary; 1402 } 1403 1404 /* 1405 * Loads a class and verifies that the main class is present and it is ok to 1406 * call it for more details refer to the java implementation. 1407 */ 1408 static jclass 1409 LoadMainClass(JNIEnv *env, int mode, char *name) 1410 { 1411 jmethodID mid; 1412 jstring str; 1413 jobject result; 1414 jlong start, end; 1415 jclass cls = GetLauncherHelperClass(env); 1416 NULL_CHECK0(cls); 1417 if (JLI_IsTraceLauncher()) { 1418 start = CounterGet(); 1419 } 1420 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1421 "checkAndLoadMain", 1422 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1423 1424 NULL_CHECK0(str = NewPlatformString(env, name)); 1425 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1426 USE_STDERR, mode, str)); 1427 1428 if (JLI_IsTraceLauncher()) { 1429 end = CounterGet(); 1430 printf("%ld micro seconds to load main class\n", 1431 (long)(jint)Counter2Micros(end-start)); 1432 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1433 } 1434 1435 return (jclass)result; 1436 } 1437 1438 static jclass 1439 GetApplicationClass(JNIEnv *env) 1440 { 1441 jmethodID mid; 1442 jclass cls = GetLauncherHelperClass(env); 1443 NULL_CHECK0(cls); 1444 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1445 "getApplicationClass", 1446 "()Ljava/lang/Class;")); 1447 1448 return (*env)->CallStaticObjectMethod(env, cls, mid); 1449 } 1450 1451 /* 1452 * For tools, convert command line args thus: 1453 * javac -cp foo:foo/"*" -J-ms32m ... 1454 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1455 * 1456 * Takes 4 parameters, and returns the populated arguments 1457 */ 1458 static void 1459 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1460 { 1461 int argc = *pargc; 1462 char **argv = *pargv; 1463 int nargc = argc + jargc; 1464 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1465 int i; 1466 1467 *pargc = nargc; 1468 *pargv = nargv; 1469 1470 /* Copy the VM arguments (i.e. prefixed with -J) */ 1471 for (i = 0; i < jargc; i++) { 1472 const char *arg = jargv[i]; 1473 if (arg[0] == '-' && arg[1] == 'J') { 1474 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1475 } 1476 } 1477 1478 for (i = 0; i < argc; i++) { 1479 char *arg = argv[i]; 1480 if (arg[0] == '-' && arg[1] == 'J') { 1481 if (arg[2] == '\0') { 1482 JLI_ReportErrorMessage(ARG_ERROR3); 1483 exit(1); 1484 } 1485 *nargv++ = arg + 2; 1486 } 1487 } 1488 1489 /* Copy the rest of the arguments */ 1490 for (i = 0; i < jargc ; i++) { 1491 const char *arg = jargv[i]; 1492 if (arg[0] != '-' || arg[1] != 'J') { 1493 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1494 } 1495 } 1496 for (i = 0; i < argc; i++) { 1497 char *arg = argv[i]; 1498 if (arg[0] == '-') { 1499 if (arg[1] == 'J') 1500 continue; 1501 if (IsWildCardEnabled() && arg[1] == 'c' 1502 && (JLI_StrCmp(arg, "-cp") == 0 || 1503 JLI_StrCmp(arg, "-classpath") == 0) 1504 && i < argc - 1) { 1505 *nargv++ = arg; 1506 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1507 i++; 1508 continue; 1509 } 1510 } 1511 *nargv++ = arg; 1512 } 1513 *nargv = 0; 1514 } 1515 1516 /* 1517 * For our tools, we try to add 3 VM options: 1518 * -Denv.class.path=<envcp> 1519 * -Dapplication.home=<apphome> 1520 * -Djava.class.path=<appcp> 1521 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1522 * tells javac where to find binary classes through this environment 1523 * variable. Notice that users will be able to compile against our 1524 * tools classes (sun.tools.javac.Main) only if they explicitly add 1525 * tools.jar to CLASSPATH. 1526 * <apphome> is the directory where the application is installed. 1527 * <appcp> is the classpath to where our apps' classfiles are. 1528 */ 1529 static jboolean 1530 AddApplicationOptions(int cpathc, const char **cpathv) 1531 { 1532 char *envcp, *appcp, *apphome; 1533 char home[MAXPATHLEN]; /* application home */ 1534 char separator[] = { PATH_SEPARATOR, '\0' }; 1535 int size, i; 1536 1537 { 1538 const char *s = getenv("CLASSPATH"); 1539 if (s) { 1540 s = (char *) JLI_WildcardExpandClasspath(s); 1541 /* 40 for -Denv.class.path= */ 1542 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1543 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1544 sprintf(envcp, "-Denv.class.path=%s", s); 1545 AddOption(envcp, NULL); 1546 } 1547 } 1548 } 1549 1550 if (!GetApplicationHome(home, sizeof(home))) { 1551 JLI_ReportErrorMessage(CFG_ERROR5); 1552 return JNI_FALSE; 1553 } 1554 1555 /* 40 for '-Dapplication.home=' */ 1556 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1557 sprintf(apphome, "-Dapplication.home=%s", home); 1558 AddOption(apphome, NULL); 1559 1560 /* How big is the application's classpath? */ 1561 size = 40; /* 40: "-Djava.class.path=" */ 1562 for (i = 0; i < cpathc; i++) { 1563 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1564 } 1565 appcp = (char *)JLI_MemAlloc(size + 1); 1566 JLI_StrCpy(appcp, "-Djava.class.path="); 1567 for (i = 0; i < cpathc; i++) { 1568 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1569 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1570 JLI_StrCat(appcp, separator); /* ; */ 1571 } 1572 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1573 AddOption(appcp, NULL); 1574 return JNI_TRUE; 1575 } 1576 1577 /* 1578 * inject the -Dsun.java.command pseudo property into the args structure 1579 * this pseudo property is used in the HotSpot VM to expose the 1580 * Java class name and arguments to the main method to the VM. The 1581 * HotSpot VM uses this pseudo property to store the Java class name 1582 * (or jar file name) and the arguments to the class's main method 1583 * to the instrumentation memory region. The sun.java.command pseudo 1584 * property is not exported by HotSpot to the Java layer. 1585 */ 1586 void 1587 SetJavaCommandLineProp(char *what, int argc, char **argv) 1588 { 1589 1590 int i = 0; 1591 size_t len = 0; 1592 char* javaCommand = NULL; 1593 char* dashDstr = "-Dsun.java.command="; 1594 1595 if (what == NULL) { 1596 /* unexpected, one of these should be set. just return without 1597 * setting the property 1598 */ 1599 return; 1600 } 1601 1602 /* determine the amount of memory to allocate assuming 1603 * the individual components will be space separated 1604 */ 1605 len = JLI_StrLen(what); 1606 for (i = 0; i < argc; i++) { 1607 len += JLI_StrLen(argv[i]) + 1; 1608 } 1609 1610 /* allocate the memory */ 1611 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1612 1613 /* build the -D string */ 1614 *javaCommand = '\0'; 1615 JLI_StrCat(javaCommand, dashDstr); 1616 JLI_StrCat(javaCommand, what); 1617 1618 for (i = 0; i < argc; i++) { 1619 /* the components of the string are space separated. In 1620 * the case of embedded white space, the relationship of 1621 * the white space separated components to their true 1622 * positional arguments will be ambiguous. This issue may 1623 * be addressed in a future release. 1624 */ 1625 JLI_StrCat(javaCommand, " "); 1626 JLI_StrCat(javaCommand, argv[i]); 1627 } 1628 1629 AddOption(javaCommand, NULL); 1630 } 1631 1632 /* 1633 * JVM would like to know if it's created by a standard Sun launcher, or by 1634 * user native application, the following property indicates the former. 1635 */ 1636 void 1637 SetJavaLauncherProp() { 1638 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1639 } 1640 1641 /* 1642 * Prints the version information from the java.version and other properties. 1643 */ 1644 static void 1645 PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1646 { 1647 jclass ver; 1648 jmethodID print; 1649 1650 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps")); 1651 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1652 ver, 1653 (extraLF == JNI_TRUE) ? "println" : "print", 1654 "()V" 1655 ) 1656 ); 1657 1658 (*env)->CallStaticVoidMethod(env, ver, print); 1659 } 1660 1661 /* 1662 * Prints all the Java settings, see the java implementation for more details. 1663 */ 1664 static void 1665 ShowSettings(JNIEnv *env, char *optString) 1666 { 1667 jmethodID showSettingsID; 1668 jstring joptString; 1669 jclass cls = GetLauncherHelperClass(env); 1670 NULL_CHECK(cls); 1671 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1672 "showSettings", "(ZLjava/lang/String;JJJZ)V")); 1673 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1674 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1675 USE_STDERR, 1676 joptString, 1677 (jlong)initialHeapSize, 1678 (jlong)maxHeapSize, 1679 (jlong)threadStackSize, 1680 ServerClassMachine()); 1681 } 1682 1683 /** 1684 * List modules supported by the runtime 1685 */ 1686 static void 1687 ListModules(JNIEnv *env, char *optString) 1688 { 1689 jmethodID listModulesID; 1690 jstring joptString; 1691 jclass cls = GetLauncherHelperClass(env); 1692 NULL_CHECK(cls); 1693 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls, 1694 "listModules", "(ZLjava/lang/String;)V")); 1695 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1696 (*env)->CallStaticVoidMethod(env, cls, listModulesID, 1697 USE_STDERR, 1698 joptString); 1699 } 1700 1701 /* 1702 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1703 */ 1704 static void 1705 PrintUsage(JNIEnv* env, jboolean doXUsage) 1706 { 1707 jmethodID initHelp, vmSelect, vmSynonym, vmErgo, printHelp, printXUsageMessage; 1708 jstring jprogname, vm1, vm2; 1709 int i; 1710 jclass cls = GetLauncherHelperClass(env); 1711 NULL_CHECK(cls); 1712 if (doXUsage) { 1713 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1714 "printXUsageMessage", "(Z)V")); 1715 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, USE_STDERR); 1716 } else { 1717 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1718 "initHelpMessage", "(Ljava/lang/String;)V")); 1719 1720 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1721 "(Ljava/lang/String;Ljava/lang/String;)V")); 1722 1723 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1724 "appendVmSynonymMessage", 1725 "(Ljava/lang/String;Ljava/lang/String;)V")); 1726 NULL_CHECK(vmErgo = (*env)->GetStaticMethodID(env, cls, 1727 "appendVmErgoMessage", "(ZLjava/lang/String;)V")); 1728 1729 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1730 "printHelpMessage", "(Z)V")); 1731 1732 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1733 1734 /* Initialize the usage message with the usual preamble */ 1735 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1736 CHECK_EXCEPTION_RETURN(); 1737 1738 1739 /* Assemble the other variant part of the usage */ 1740 if ((knownVMs[0].flag == VM_KNOWN) || 1741 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { 1742 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[0].name)); 1743 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[0].name+1)); 1744 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1745 CHECK_EXCEPTION_RETURN(); 1746 } 1747 for (i=1; i<knownVMsCount; i++) { 1748 if (knownVMs[i].flag == VM_KNOWN) { 1749 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1750 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 1751 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1752 CHECK_EXCEPTION_RETURN(); 1753 } 1754 } 1755 for (i=1; i<knownVMsCount; i++) { 1756 if (knownVMs[i].flag == VM_ALIASED_TO) { 1757 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1758 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 1759 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1760 CHECK_EXCEPTION_RETURN(); 1761 } 1762 } 1763 1764 /* The first known VM is the default */ 1765 { 1766 jboolean isServerClassMachine = ServerClassMachine(); 1767 1768 const char* defaultVM = knownVMs[0].name+1; 1769 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && isServerClassMachine) { 1770 defaultVM = knownVMs[0].server_class+1; 1771 } 1772 1773 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, defaultVM)); 1774 (*env)->CallStaticVoidMethod(env, cls, vmErgo, isServerClassMachine, vm1); 1775 CHECK_EXCEPTION_RETURN(); 1776 } 1777 1778 /* Complete the usage message and print to stderr*/ 1779 (*env)->CallStaticVoidMethod(env, cls, printHelp, USE_STDERR); 1780 } 1781 return; 1782 } 1783 1784 /* 1785 * Read the jvm.cfg file and fill the knownJVMs[] array. 1786 * 1787 * The functionality of the jvm.cfg file is subject to change without 1788 * notice and the mechanism will be removed in the future. 1789 * 1790 * The lexical structure of the jvm.cfg file is as follows: 1791 * 1792 * jvmcfg := { vmLine } 1793 * vmLine := knownLine 1794 * | aliasLine 1795 * | warnLine 1796 * | ignoreLine 1797 * | errorLine 1798 * | predicateLine 1799 * | commentLine 1800 * knownLine := flag "KNOWN" EOL 1801 * warnLine := flag "WARN" EOL 1802 * ignoreLine := flag "IGNORE" EOL 1803 * errorLine := flag "ERROR" EOL 1804 * aliasLine := flag "ALIASED_TO" flag EOL 1805 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 1806 * commentLine := "#" text EOL 1807 * flag := "-" identifier 1808 * 1809 * The semantics are that when someone specifies a flag on the command line: 1810 * - if the flag appears on a knownLine, then the identifier is used as 1811 * the name of the directory holding the JVM library (the name of the JVM). 1812 * - if the flag appears as the first flag on an aliasLine, the identifier 1813 * of the second flag is used as the name of the JVM. 1814 * - if the flag appears on a warnLine, the identifier is used as the 1815 * name of the JVM, but a warning is generated. 1816 * - if the flag appears on an ignoreLine, the identifier is recognized as the 1817 * name of a JVM, but the identifier is ignored and the default vm used 1818 * - if the flag appears on an errorLine, an error is generated. 1819 * - if the flag appears as the first flag on a predicateLine, and 1820 * the machine on which you are running passes the predicate indicated, 1821 * then the identifier of the second flag is used as the name of the JVM, 1822 * otherwise the identifier of the first flag is used as the name of the JVM. 1823 * If no flag is given on the command line, the first vmLine of the jvm.cfg 1824 * file determines the name of the JVM. 1825 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 1826 * since they only make sense if someone hasn't specified the name of the 1827 * JVM on the command line. 1828 * 1829 * The intent of the jvm.cfg file is to allow several JVM libraries to 1830 * be installed in different subdirectories of a single JRE installation, 1831 * for space-savings and convenience in testing. 1832 * The intent is explicitly not to provide a full aliasing or predicate 1833 * mechanism. 1834 */ 1835 jint 1836 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 1837 { 1838 FILE *jvmCfg; 1839 char line[MAXPATHLEN+20]; 1840 int cnt = 0; 1841 int lineno = 0; 1842 jlong start, end; 1843 int vmType; 1844 char *tmpPtr; 1845 char *altVMName = NULL; 1846 char *serverClassVMName = NULL; 1847 static char *whiteSpace = " \t"; 1848 if (JLI_IsTraceLauncher()) { 1849 start = CounterGet(); 1850 } 1851 1852 jvmCfg = fopen(jvmCfgName, "r"); 1853 if (jvmCfg == NULL) { 1854 if (!speculative) { 1855 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 1856 exit(1); 1857 } else { 1858 return -1; 1859 } 1860 } 1861 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 1862 vmType = VM_UNKNOWN; 1863 lineno++; 1864 if (line[0] == '#') 1865 continue; 1866 if (line[0] != '-') { 1867 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 1868 } 1869 if (cnt >= knownVMsLimit) { 1870 GrowKnownVMs(cnt); 1871 } 1872 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 1873 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 1874 if (*tmpPtr == 0) { 1875 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1876 } else { 1877 /* Null-terminate this string for JLI_StringDup below */ 1878 *tmpPtr++ = 0; 1879 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1880 if (*tmpPtr == 0) { 1881 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1882 } else { 1883 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 1884 vmType = VM_KNOWN; 1885 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 1886 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1887 if (*tmpPtr != 0) { 1888 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1889 } 1890 if (*tmpPtr == 0) { 1891 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1892 } else { 1893 /* Null terminate altVMName */ 1894 altVMName = tmpPtr; 1895 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1896 *tmpPtr = 0; 1897 vmType = VM_ALIASED_TO; 1898 } 1899 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 1900 vmType = VM_WARN; 1901 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 1902 vmType = VM_IGNORE; 1903 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 1904 vmType = VM_ERROR; 1905 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 1906 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1907 if (*tmpPtr != 0) { 1908 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1909 } 1910 if (*tmpPtr == 0) { 1911 JLI_ReportErrorMessage(CFG_WARN4, lineno, jvmCfgName); 1912 } else { 1913 /* Null terminate server class VM name */ 1914 serverClassVMName = tmpPtr; 1915 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1916 *tmpPtr = 0; 1917 vmType = VM_IF_SERVER_CLASS; 1918 } 1919 } else { 1920 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 1921 vmType = VM_KNOWN; 1922 } 1923 } 1924 } 1925 1926 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 1927 if (vmType != VM_UNKNOWN) { 1928 knownVMs[cnt].name = JLI_StringDup(line); 1929 knownVMs[cnt].flag = vmType; 1930 switch (vmType) { 1931 default: 1932 break; 1933 case VM_ALIASED_TO: 1934 knownVMs[cnt].alias = JLI_StringDup(altVMName); 1935 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 1936 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 1937 break; 1938 case VM_IF_SERVER_CLASS: 1939 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName); 1940 JLI_TraceLauncher(" name: %s vmType: %s server_class: %s\n", 1941 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); 1942 break; 1943 } 1944 cnt++; 1945 } 1946 } 1947 fclose(jvmCfg); 1948 knownVMsCount = cnt; 1949 1950 if (JLI_IsTraceLauncher()) { 1951 end = CounterGet(); 1952 printf("%ld micro seconds to parse jvm.cfg\n", 1953 (long)(jint)Counter2Micros(end-start)); 1954 } 1955 1956 return cnt; 1957 } 1958 1959 1960 static void 1961 GrowKnownVMs(int minimum) 1962 { 1963 struct vmdesc* newKnownVMs; 1964 int newMax; 1965 1966 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 1967 if (newMax <= minimum) { 1968 newMax = minimum; 1969 } 1970 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 1971 if (knownVMs != NULL) { 1972 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 1973 } 1974 JLI_MemFree(knownVMs); 1975 knownVMs = newKnownVMs; 1976 knownVMsLimit = newMax; 1977 } 1978 1979 1980 /* Returns index of VM or -1 if not found */ 1981 static int 1982 KnownVMIndex(const char* name) 1983 { 1984 int i; 1985 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 1986 for (i = 0; i < knownVMsCount; i++) { 1987 if (!JLI_StrCmp(name, knownVMs[i].name)) { 1988 return i; 1989 } 1990 } 1991 return -1; 1992 } 1993 1994 static void 1995 FreeKnownVMs() 1996 { 1997 int i; 1998 for (i = 0; i < knownVMsCount; i++) { 1999 JLI_MemFree(knownVMs[i].name); 2000 knownVMs[i].name = NULL; 2001 } 2002 JLI_MemFree(knownVMs); 2003 } 2004 2005 /* 2006 * Displays the splash screen according to the jar file name 2007 * and image file names stored in environment variables 2008 */ 2009 void 2010 ShowSplashScreen() 2011 { 2012 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 2013 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 2014 int data_size; 2015 void *image_data = NULL; 2016 float scale_factor = 1; 2017 char *scaled_splash_name = NULL; 2018 jboolean isImageScaled = JNI_FALSE; 2019 size_t maxScaledImgNameLength = 0; 2020 if (file_name == NULL){ 2021 return; 2022 } 2023 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name); 2024 2025 scaled_splash_name = JLI_MemAlloc( 2026 maxScaledImgNameLength * sizeof(char)); 2027 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name, 2028 &scale_factor, 2029 scaled_splash_name, maxScaledImgNameLength); 2030 if (jar_name) { 2031 2032 if (isImageScaled) { 2033 image_data = JLI_JarUnpackFile( 2034 jar_name, scaled_splash_name, &data_size); 2035 } 2036 2037 if (!image_data) { 2038 scale_factor = 1; 2039 image_data = JLI_JarUnpackFile( 2040 jar_name, file_name, &data_size); 2041 } 2042 if (image_data) { 2043 DoSplashInit(); 2044 DoSplashSetScaleFactor(scale_factor); 2045 DoSplashLoadMemory(image_data, data_size); 2046 JLI_MemFree(image_data); 2047 } 2048 } else { 2049 DoSplashInit(); 2050 if (isImageScaled) { 2051 DoSplashSetScaleFactor(scale_factor); 2052 DoSplashLoadFile(scaled_splash_name); 2053 } else { 2054 DoSplashLoadFile(file_name); 2055 } 2056 } 2057 JLI_MemFree(scaled_splash_name); 2058 2059 DoSplashSetFileJarName(file_name, jar_name); 2060 2061 /* 2062 * Done with all command line processing and potential re-execs so 2063 * clean up the environment. 2064 */ 2065 (void)UnsetEnv(ENV_ENTRY); 2066 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 2067 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 2068 2069 JLI_MemFree(splash_jar_entry); 2070 JLI_MemFree(splash_file_entry); 2071 2072 } 2073 2074 const char* 2075 GetFullVersion() 2076 { 2077 return _fVersion; 2078 } 2079 2080 const char* 2081 GetProgramName() 2082 { 2083 return _program_name; 2084 } 2085 2086 const char* 2087 GetLauncherName() 2088 { 2089 return _launcher_name; 2090 } 2091 2092 jint 2093 GetErgoPolicy() 2094 { 2095 return _ergo_policy; 2096 } 2097 2098 jboolean 2099 IsJavaArgs() 2100 { 2101 return _is_java_args; 2102 } 2103 2104 static jboolean 2105 IsWildCardEnabled() 2106 { 2107 return _wc_enabled; 2108 } 2109 2110 int 2111 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 2112 int argc, char **argv, 2113 int mode, char *what, int ret) 2114 { 2115 2116 /* 2117 * If user doesn't specify stack size, check if VM has a preference. 2118 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 2119 * return its default stack size through the init args structure. 2120 */ 2121 if (threadStackSize == 0) { 2122 struct JDK1_1InitArgs args1_1; 2123 memset((void*)&args1_1, 0, sizeof(args1_1)); 2124 args1_1.version = JNI_VERSION_1_1; 2125 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 2126 if (args1_1.javaStackSize > 0) { 2127 threadStackSize = args1_1.javaStackSize; 2128 } 2129 } 2130 2131 { /* Create a new thread to create JVM and invoke main method */ 2132 JavaMainArgs args; 2133 int rslt; 2134 2135 args.argc = argc; 2136 args.argv = argv; 2137 args.mode = mode; 2138 args.what = what; 2139 args.ifn = *ifn; 2140 2141 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args); 2142 /* If the caller has deemed there is an error we 2143 * simply return that, otherwise we return the value of 2144 * the callee 2145 */ 2146 return (ret != 0) ? ret : rslt; 2147 } 2148 } 2149 2150 static void 2151 DumpState() 2152 { 2153 if (!JLI_IsTraceLauncher()) return ; 2154 printf("Launcher state:\n"); 2155 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex()); 2156 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 2157 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 2158 printf("\tprogram name:%s\n", GetProgramName()); 2159 printf("\tlauncher name:%s\n", GetLauncherName()); 2160 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 2161 printf("\tfullversion:%s\n", GetFullVersion()); 2162 printf("\tergo_policy:"); 2163 switch(GetErgoPolicy()) { 2164 case NEVER_SERVER_CLASS: 2165 printf("NEVER_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 2166 break; 2167 case ALWAYS_SERVER_CLASS: 2168 printf("ALWAYS_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 2169 break; 2170 default: 2171 printf("DEFAULT_ERGONOMICS_POLICY\n"); 2172 } 2173 } 2174 2175 /* 2176 * Return JNI_TRUE for an option string that has no effect but should 2177 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On 2178 * Solaris SPARC, this screening needs to be done if: 2179 * -d32 or -d64 is passed to a binary with an unmatched data model 2180 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the 2181 * exec to the proper binary). In the case of when the data model and the 2182 * requested version is matched, an exec would not occur, and these options 2183 * were erroneously passed to the vm. 2184 */ 2185 jboolean 2186 RemovableOption(char * option) 2187 { 2188 /* 2189 * Unconditionally remove both -d32 and -d64 options since only 2190 * the last such options has an effect; e.g. 2191 * java -d32 -d64 -d32 -version 2192 * is equivalent to 2193 * java -d32 -version 2194 */ 2195 2196 if( (JLI_StrCCmp(option, "-d32") == 0 ) || 2197 (JLI_StrCCmp(option, "-d64") == 0 ) ) 2198 return JNI_TRUE; 2199 else 2200 return JNI_FALSE; 2201 } 2202 2203 /* 2204 * A utility procedure to always print to stderr 2205 */ 2206 void 2207 JLI_ReportMessage(const char* fmt, ...) 2208 { 2209 va_list vl; 2210 va_start(vl, fmt); 2211 vfprintf(stderr, fmt, vl); 2212 fprintf(stderr, "\n"); 2213 va_end(vl); 2214 }