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 char *showSettings = NULL; /* print but continue */ 72 static char *listModules = NULL; 73 74 static const char *_program_name; 75 static const char *_launcher_name; 76 static jboolean _is_java_args = JNI_FALSE; 77 static jboolean _have_classpath = JNI_FALSE; 78 static const char *_fVersion; 79 static jboolean _wc_enabled = JNI_FALSE; 80 static jint _ergo_policy = DEFAULT_POLICY; 81 82 /* 83 * Entries for splash screen environment variables. 84 * putenv is performed in SelectVersion. We need 85 * them in memory until UnsetEnv, so they are made static 86 * global instead of auto local. 87 */ 88 static char* splash_file_entry = NULL; 89 static char* splash_jar_entry = NULL; 90 91 /* 92 * List of VM options to be specified when the VM is created. 93 */ 94 static JavaVMOption *options; 95 static int numOptions, maxOptions; 96 97 /* 98 * Prototypes for functions internal to launcher. 99 */ 100 static void SetClassPath(const char *s); 101 static void SetModulePath(const char *s); 102 static void SetUpgradeModulePath(const char *s); 103 static void SetMainModule(const char *s); 104 static void SetAddModulesProp(const char *mods); 105 static void SetLimitModulesProp(const char *mods); 106 static void SetAddReadsProp(const jint n, const char *s); 107 static void SetAddExportsProp(const jint n, const char *s); 108 static void SetPatchProp(const jint n, const char *s); 109 static void SelectVersion(int argc, char **argv, char **main_class); 110 static void SetJvmEnvironment(int argc, char **argv); 111 static jboolean ParseArguments(int *pargc, char ***pargv, 112 int *pmode, char **pwhat, 113 int *pret, const char *jrepath); 114 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 115 InvocationFunctions *ifn); 116 static jstring NewPlatformString(JNIEnv *env, char *s); 117 static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 118 static jclass GetApplicationClass(JNIEnv *env); 119 120 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 121 static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 122 static void SetApplicationClassPath(const char**); 123 124 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF); 125 static void PrintUsage(JNIEnv* env, jboolean doXUsage); 126 static void ShowSettings(JNIEnv* env, char *optString); 127 static void ListModules(JNIEnv* env, char *optString); 128 static void SetNativeThreadName(JNIEnv* env, char *name); 129 130 static void SetPaths(int argc, char **argv); 131 132 static void DumpState(); 133 static jboolean RemovableOption(char *option); 134 135 /* Maximum supported entries from jvm.cfg. */ 136 #define INIT_MAX_KNOWN_VMS 10 137 138 /* Values for vmdesc.flag */ 139 enum vmdesc_flag { 140 VM_UNKNOWN = -1, 141 VM_KNOWN, 142 VM_ALIASED_TO, 143 VM_WARN, 144 VM_ERROR, 145 VM_IF_SERVER_CLASS, 146 VM_IGNORE 147 }; 148 149 struct vmdesc { 150 char *name; 151 int flag; 152 char *alias; 153 char *server_class; 154 }; 155 static struct vmdesc *knownVMs = NULL; 156 static int knownVMsCount = 0; 157 static int knownVMsLimit = 0; 158 159 static void GrowKnownVMs(int minimum); 160 static int KnownVMIndex(const char* name); 161 static void FreeKnownVMs(); 162 static jboolean IsWildCardEnabled(); 163 164 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \ 165 do { \ 166 if (AC_arg_count < 1) { \ 167 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 168 printUsage = JNI_TRUE; \ 169 *pret = 1; \ 170 return JNI_TRUE; \ 171 } \ 172 } while (JNI_FALSE) 173 174 /* 175 * Running Java code in primordial thread caused many problems. We will 176 * create a new thread to invoke JVM. See 6316197 for more information. 177 */ 178 static jlong threadStackSize = 0; /* stack size of the new thread */ 179 static jlong maxHeapSize = 0; /* max heap size */ 180 static jlong initialHeapSize = 0; /* inital heap size */ 181 182 /* 183 * A minimum -Xss stack size suitable for all platforms. 184 */ 185 #ifndef STACK_SIZE_MINIMUM 186 #define STACK_SIZE_MINIMUM (32 * KB) 187 #endif 188 189 /* 190 * Entry point. 191 */ 192 int 193 JLI_Launch(int argc, char ** argv, /* main argc, argc */ 194 int jargc, const char** jargv, /* java args */ 195 int appclassc, const char** appclassv, /* app classpath */ 196 const char* fullversion, /* full version defined */ 197 const char* dotversion, /* UNUSED dot version defined */ 198 const char* pname, /* program name */ 199 const char* lname, /* launcher name */ 200 jboolean javaargs, /* JAVA_ARGS */ 201 jboolean cpwildcard, /* classpath wildcard*/ 202 jboolean javaw, /* windows-only javaw */ 203 jint ergo /* ergonomics class policy */ 204 ) 205 { 206 int mode = LM_UNKNOWN; 207 char *what = NULL; 208 char *main_class = NULL; 209 int ret; 210 InvocationFunctions ifn; 211 jlong start, end; 212 char jvmpath[MAXPATHLEN]; 213 char jrepath[MAXPATHLEN]; 214 char jvmcfg[MAXPATHLEN]; 215 216 _fVersion = fullversion; 217 _launcher_name = lname; 218 _program_name = pname; 219 _is_java_args = javaargs; 220 _wc_enabled = cpwildcard; 221 _ergo_policy = ergo; 222 223 InitLauncher(javaw); 224 DumpState(); 225 if (JLI_IsTraceLauncher()) { 226 int i; 227 printf("Command line args:\n"); 228 for (i = 0; i < argc ; i++) { 229 printf("argv[%d] = %s\n", i, argv[i]); 230 } 231 AddOption("-Dsun.java.launcher.diag=true", NULL); 232 } 233 234 /* 235 * SelectVersion() has several responsibilities: 236 * 237 * 1) Disallow specification of another JRE. With 1.9, another 238 * version of the JRE cannot be invoked. 239 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since 240 * all mJRE directives have been stripped from the request but 241 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been 242 * invoked from the command line. 243 */ 244 SelectVersion(argc, argv, &main_class); 245 246 CreateExecutionEnvironment(&argc, &argv, 247 jrepath, sizeof(jrepath), 248 jvmpath, sizeof(jvmpath), 249 jvmcfg, sizeof(jvmcfg)); 250 251 if (!IsJavaArgs()) { 252 SetJvmEnvironment(argc,argv); 253 } 254 255 ifn.CreateJavaVM = 0; 256 ifn.GetDefaultJavaVMInitArgs = 0; 257 258 if (JLI_IsTraceLauncher()) { 259 start = CounterGet(); 260 } 261 262 if (!LoadJavaVM(jvmpath, &ifn)) { 263 return(6); 264 } 265 266 if (JLI_IsTraceLauncher()) { 267 end = CounterGet(); 268 } 269 270 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", 271 (long)(jint)Counter2Micros(end-start)); 272 273 ++argv; 274 --argc; 275 276 if (IsJavaArgs()) { 277 /* Preprocess wrapper arguments */ 278 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 279 if (!AddApplicationOptions(appclassc, appclassv)) { 280 return(1); 281 } 282 } else { 283 /* Set default CLASSPATH */ 284 char* cpath = getenv("CLASSPATH"); 285 if (cpath != NULL) { 286 SetClassPath(cpath); 287 } 288 } 289 290 /* Parse command line options; if the return value of 291 * ParseArguments is false, the program should exit. 292 */ 293 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) 294 { 295 return(ret); 296 } 297 298 /* Override class path if -jar flag was specified */ 299 if (mode == LM_JAR) { 300 SetClassPath(what); /* Override class path */ 301 } 302 303 /* set the -Dsun.java.command pseudo property */ 304 SetJavaCommandLineProp(what, argc, argv); 305 306 /* Set the -Dsun.java.launcher pseudo property */ 307 SetJavaLauncherProp(); 308 309 /* set the -Dsun.java.launcher.* platform properties */ 310 SetJavaLauncherPlatformProps(); 311 312 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); 313 } 314 /* 315 * Always detach the main thread so that it appears to have ended when 316 * the application's main method exits. This will invoke the 317 * uncaught exception handler machinery if main threw an 318 * exception. An uncaught exception handler cannot change the 319 * launcher's return code except by calling System.exit. 320 * 321 * Wait for all non-daemon threads to end, then destroy the VM. 322 * This will actually create a trivial new Java waiter thread 323 * named "DestroyJavaVM", but this will be seen as a different 324 * thread from the one that executed main, even though they are 325 * the same C thread. This allows mainThread.join() and 326 * mainThread.isAlive() to work as expected. 327 */ 328 #define LEAVE() \ 329 SetNativeThreadName(env, "DestroyJavaVM"); \ 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 SetNativeThreadName(env, "main"); 392 393 if (showSettings != NULL) { 394 ShowSettings(env, showSettings); 395 CHECK_EXCEPTION_LEAVE(1); 396 } 397 398 if (listModules != NULL) { 399 ListModules(env, listModules); 400 CHECK_EXCEPTION_LEAVE(1); 401 LEAVE(); 402 } 403 404 if (printVersion || showVersion) { 405 PrintJavaVersion(env, showVersion); 406 CHECK_EXCEPTION_LEAVE(0); 407 if (printVersion) { 408 LEAVE(); 409 } 410 } 411 412 /* If the user specified neither a class name nor a JAR file */ 413 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 414 PrintUsage(env, printXUsage); 415 CHECK_EXCEPTION_LEAVE(1); 416 LEAVE(); 417 } 418 419 FreeKnownVMs(); /* after last possible PrintUsage() */ 420 421 if (JLI_IsTraceLauncher()) { 422 end = CounterGet(); 423 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 424 (long)(jint)Counter2Micros(end-start)); 425 } 426 427 /* At this stage, argc/argv have the application's arguments */ 428 if (JLI_IsTraceLauncher()){ 429 int i; 430 printf("%s is '%s'\n", launchModeNames[mode], what); 431 printf("App's argc is %d\n", argc); 432 for (i=0; i < argc; i++) { 433 printf(" argv[%2d] = '%s'\n", i, argv[i]); 434 } 435 } 436 437 ret = 1; 438 439 /* 440 * Get the application's main class. 441 * 442 * See bugid 5030265. The Main-Class name has already been parsed 443 * from the manifest, but not parsed properly for UTF-8 support. 444 * Hence the code here ignores the value previously extracted and 445 * uses the pre-existing code to reextract the value. This is 446 * possibly an end of release cycle expedient. However, it has 447 * also been discovered that passing some character sets through 448 * the environment has "strange" behavior on some variants of 449 * Windows. Hence, maybe the manifest parsing code local to the 450 * launcher should never be enhanced. 451 * 452 * Hence, future work should either: 453 * 1) Correct the local parsing code and verify that the 454 * Main-Class attribute gets properly passed through 455 * all environments, 456 * 2) Remove the vestages of maintaining main_class through 457 * the environment (and remove these comments). 458 * 459 * This method also correctly handles launching existing JavaFX 460 * applications that may or may not have a Main-Class manifest entry. 461 */ 462 mainClass = LoadMainClass(env, mode, what); 463 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 464 /* 465 * In some cases when launching an application that needs a helper, e.g., a 466 * JavaFX application with no main method, the mainClass will not be the 467 * applications own main class but rather a helper class. To keep things 468 * consistent in the UI we need to track and report the application main class. 469 */ 470 appClass = GetApplicationClass(env); 471 NULL_CHECK_RETURN_VALUE(appClass, -1); 472 /* 473 * PostJVMInit uses the class name as the application name for GUI purposes, 474 * for example, on OSX this sets the application name in the menu bar for 475 * both SWT and JavaFX. So we'll pass the actual application class here 476 * instead of mainClass as that may be a launcher or helper class instead 477 * of the application class. 478 */ 479 PostJVMInit(env, appClass, vm); 480 CHECK_EXCEPTION_LEAVE(1); 481 /* 482 * The LoadMainClass not only loads the main class, it will also ensure 483 * that the main method's signature is correct, therefore further checking 484 * is not required. The main method is invoked here so that extraneous java 485 * stacks are not in the application stack trace. 486 */ 487 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 488 "([Ljava/lang/String;)V"); 489 CHECK_EXCEPTION_NULL_LEAVE(mainID); 490 491 /* Build platform specific argument array */ 492 mainArgs = CreateApplicationArgs(env, argv, argc); 493 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 494 495 /* Invoke main method. */ 496 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 497 498 /* 499 * The launcher's exit code (in the absence of calls to 500 * System.exit) will be non-zero if main threw an exception. 501 */ 502 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 503 LEAVE(); 504 } 505 506 /* 507 * Checks the command line options to find which JVM type was 508 * specified. If no command line option was given for the JVM type, 509 * the default type is used. The environment variable 510 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 511 * checked as ways of specifying which JVM type to invoke. 512 */ 513 char * 514 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 515 int i, argi; 516 int argc; 517 char **newArgv; 518 int newArgvIdx = 0; 519 int isVMType; 520 int jvmidx = -1; 521 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 522 523 argc = *pargc; 524 525 /* To make things simpler we always copy the argv array */ 526 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 527 528 /* The program name is always present */ 529 newArgv[newArgvIdx++] = (*argv)[0]; 530 531 for (argi = 1; argi < argc; argi++) { 532 char *arg = (*argv)[argi]; 533 isVMType = 0; 534 535 if (IsJavaArgs()) { 536 if (arg[0] != '-') { 537 newArgv[newArgvIdx++] = arg; 538 continue; 539 } 540 } else { 541 if (JLI_StrCmp(arg, "-classpath") == 0 || 542 JLI_StrCmp(arg, "-cp") == 0 || 543 JLI_StrCmp(arg, "-modulepath") == 0 || 544 JLI_StrCmp(arg, "-mp") == 0 || 545 JLI_StrCmp(arg, "-upgrademodulepath") == 0 || 546 JLI_StrCmp(arg, "-addmods") == 0 || 547 JLI_StrCmp(arg, "-limitmods") == 0) { 548 newArgv[newArgvIdx++] = arg; 549 argi++; 550 if (argi < argc) { 551 newArgv[newArgvIdx++] = (*argv)[argi]; 552 } 553 continue; 554 } 555 if (arg[0] != '-') break; 556 } 557 558 /* Did the user pass an explicit VM type? */ 559 i = KnownVMIndex(arg); 560 if (i >= 0) { 561 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 562 isVMType = 1; 563 *pargc = *pargc - 1; 564 } 565 566 /* Did the user specify an "alternate" VM? */ 567 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 568 isVMType = 1; 569 jvmtype = arg+((arg[1]=='X')? 10 : 12); 570 jvmidx = -1; 571 } 572 573 if (!isVMType) { 574 newArgv[newArgvIdx++] = arg; 575 } 576 } 577 578 /* 579 * Finish copying the arguments if we aborted the above loop. 580 * NOTE that if we aborted via "break" then we did NOT copy the 581 * last argument above, and in addition argi will be less than 582 * argc. 583 */ 584 while (argi < argc) { 585 newArgv[newArgvIdx++] = (*argv)[argi]; 586 argi++; 587 } 588 589 /* argv is null-terminated */ 590 newArgv[newArgvIdx] = 0; 591 592 /* Copy back argv */ 593 *argv = newArgv; 594 *pargc = newArgvIdx; 595 596 /* use the default VM type if not specified (no alias processing) */ 597 if (jvmtype == NULL) { 598 char* result = knownVMs[0].name+1; 599 /* Use a different VM type if we are on a server class machine? */ 600 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && 601 (ServerClassMachine() == JNI_TRUE)) { 602 result = knownVMs[0].server_class+1; 603 } 604 JLI_TraceLauncher("Default VM: %s\n", result); 605 return result; 606 } 607 608 /* if using an alternate VM, no alias processing */ 609 if (jvmidx < 0) 610 return jvmtype; 611 612 /* Resolve aliases first */ 613 { 614 int loopCount = 0; 615 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 616 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 617 618 if (loopCount > knownVMsCount) { 619 if (!speculative) { 620 JLI_ReportErrorMessage(CFG_ERROR1); 621 exit(1); 622 } else { 623 return "ERROR"; 624 /* break; */ 625 } 626 } 627 628 if (nextIdx < 0) { 629 if (!speculative) { 630 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 631 exit(1); 632 } else { 633 return "ERROR"; 634 } 635 } 636 jvmidx = nextIdx; 637 jvmtype = knownVMs[jvmidx].name+1; 638 loopCount++; 639 } 640 } 641 642 switch (knownVMs[jvmidx].flag) { 643 case VM_WARN: 644 if (!speculative) { 645 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 646 } 647 /* fall through */ 648 case VM_IGNORE: 649 jvmtype = knownVMs[jvmidx=0].name + 1; 650 /* fall through */ 651 case VM_KNOWN: 652 break; 653 case VM_ERROR: 654 if (!speculative) { 655 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 656 exit(1); 657 } else { 658 return "ERROR"; 659 } 660 } 661 662 return jvmtype; 663 } 664 665 /* 666 * static void SetJvmEnvironment(int argc, char **argv); 667 * Is called just before the JVM is loaded. We can set env variables 668 * that are consumed by the JVM. This function is non-destructive, 669 * leaving the arg list intact. The first use is for the JVM flag 670 * -XX:NativeMemoryTracking=value. 671 */ 672 static void 673 SetJvmEnvironment(int argc, char **argv) { 674 675 static const char* NMT_Env_Name = "NMT_LEVEL_"; 676 int i; 677 for (i = 0; i < argc; i++) { 678 char *arg = argv[i]; 679 /* 680 * Since this must be a VM flag we stop processing once we see 681 * an argument the launcher would not have processed beyond (such 682 * as -version or -h), or an argument that indicates the following 683 * arguments are for the application (i.e. the main class name, or 684 * the -jar argument). 685 */ 686 if (i > 0) { 687 char *prev = argv[i - 1]; 688 // skip non-dash arg preceded by class path specifiers 689 if (*arg != '-' && 690 ((JLI_StrCmp(prev, "-cp") == 0 691 || JLI_StrCmp(prev, "-classpath") == 0))) { 692 continue; 693 } 694 695 if (*arg != '-' 696 || JLI_StrCmp(arg, "-version") == 0 697 || JLI_StrCmp(arg, "-fullversion") == 0 698 || JLI_StrCmp(arg, "-help") == 0 699 || JLI_StrCmp(arg, "-?") == 0 700 || JLI_StrCmp(arg, "-jar") == 0 701 || JLI_StrCmp(arg, "-X") == 0) { 702 return; 703 } 704 } 705 /* 706 * The following case checks for "-XX:NativeMemoryTracking=value". 707 * If value is non null, an environmental variable set to this value 708 * will be created to be used by the JVM. 709 * The argument is passed to the JVM, which will check validity. 710 * The JVM is responsible for removing the env variable. 711 */ 712 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { 713 int retval; 714 // get what follows this parameter, include "=" 715 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); 716 if (JLI_StrLen(arg) > pnlen) { 717 char* value = arg + pnlen; 718 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits 719 720 /* 721 * ensures that malloc successful 722 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call 723 * that could store the address. 724 */ 725 char * pbuf = (char*)JLI_MemAlloc(pbuflen); 726 727 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); 728 retval = JLI_PutEnv(pbuf); 729 if (JLI_IsTraceLauncher()) { 730 char* envName; 731 char* envBuf; 732 733 // ensures that malloc successful 734 envName = (char*)JLI_MemAlloc(pbuflen); 735 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); 736 737 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); 738 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); 739 envBuf = getenv(envName); 740 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); 741 free(envName); 742 } 743 744 } 745 746 } 747 748 } 749 } 750 751 /* copied from HotSpot function "atomll()" */ 752 static int 753 parse_size(const char *s, jlong *result) { 754 jlong n = 0; 755 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n); 756 if (args_read != 1) { 757 return 0; 758 } 759 while (*s != '\0' && *s >= '0' && *s <= '9') { 760 s++; 761 } 762 // 4705540: illegal if more characters are found after the first non-digit 763 if (JLI_StrLen(s) > 1) { 764 return 0; 765 } 766 switch (*s) { 767 case 'T': case 't': 768 *result = n * GB * KB; 769 return 1; 770 case 'G': case 'g': 771 *result = n * GB; 772 return 1; 773 case 'M': case 'm': 774 *result = n * MB; 775 return 1; 776 case 'K': case 'k': 777 *result = n * KB; 778 return 1; 779 case '\0': 780 *result = n; 781 return 1; 782 default: 783 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 784 return 0; 785 } 786 } 787 788 /* 789 * Adds a new VM option with the given name and value. 790 */ 791 void 792 AddOption(char *str, void *info) 793 { 794 /* 795 * Expand options array if needed to accommodate at least one more 796 * VM option. 797 */ 798 if (numOptions >= maxOptions) { 799 if (options == 0) { 800 maxOptions = 4; 801 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 802 } else { 803 JavaVMOption *tmp; 804 maxOptions *= 2; 805 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 806 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 807 JLI_MemFree(options); 808 options = tmp; 809 } 810 } 811 options[numOptions].optionString = str; 812 options[numOptions++].extraInfo = info; 813 814 if (JLI_StrCCmp(str, "-Xss") == 0) { 815 jlong tmp; 816 if (parse_size(str + 4, &tmp)) { 817 threadStackSize = tmp; 818 /* 819 * Make sure the thread stack size is big enough that we won't get a stack 820 * overflow before the JVM startup code can check to make sure the stack 821 * is big enough. 822 */ 823 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) { 824 threadStackSize = STACK_SIZE_MINIMUM; 825 } 826 } 827 } 828 829 if (JLI_StrCCmp(str, "-Xmx") == 0) { 830 jlong tmp; 831 if (parse_size(str + 4, &tmp)) { 832 maxHeapSize = tmp; 833 } 834 } 835 836 if (JLI_StrCCmp(str, "-Xms") == 0) { 837 jlong tmp; 838 if (parse_size(str + 4, &tmp)) { 839 initialHeapSize = tmp; 840 } 841 } 842 } 843 844 static void 845 SetClassPath(const char *s) 846 { 847 char *def; 848 const char *orig = s; 849 static const char format[] = "-Djava.class.path=%s"; 850 /* 851 * usually we should not get a null pointer, but there are cases where 852 * we might just get one, in which case we simply ignore it, and let the 853 * caller deal with it 854 */ 855 if (s == NULL) 856 return; 857 s = JLI_WildcardExpandClasspath(s); 858 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 859 // s is became corrupted after expanding wildcards 860 return; 861 def = JLI_MemAlloc(sizeof(format) 862 - 2 /* strlen("%s") */ 863 + JLI_StrLen(s)); 864 sprintf(def, format, s); 865 AddOption(def, NULL); 866 if (s != orig) 867 JLI_MemFree((char *) s); 868 _have_classpath = JNI_TRUE; 869 } 870 871 static void 872 SetModulePath(const char *s) 873 { 874 char *def; 875 const char *orig = s; 876 static const char format[] = "-Djdk.module.path=%s"; 877 if (s == NULL) 878 return; 879 s = JLI_WildcardExpandClasspath(s); 880 def = JLI_MemAlloc(sizeof(format) 881 - 2 /* strlen("%s") */ 882 + JLI_StrLen(s)); 883 sprintf(def, format, s); 884 AddOption(def, NULL); 885 if (s != orig) 886 JLI_MemFree((char *) s); 887 } 888 889 static void 890 SetUpgradeModulePath(const char *s) 891 { 892 char *def; 893 const char *orig = s; 894 static const char format[] = "-Djdk.upgrade.module.path=%s"; 895 if (s == NULL) 896 return; 897 s = JLI_WildcardExpandClasspath(s); 898 def = JLI_MemAlloc(sizeof(format) 899 - 2 /* strlen("%s") */ 900 + JLI_StrLen(s)); 901 sprintf(def, format, s); 902 AddOption(def, NULL); 903 if (s != orig) 904 JLI_MemFree((char *) s); 905 } 906 907 static void 908 SetMainModule(const char *s) 909 { 910 static const char format[] = "-Djdk.module.main=%s"; 911 char* slash = JLI_StrChr(s, '/'); 912 size_t s_len, def_len; 913 char *def; 914 915 /* value may be <module> or <module>/<mainclass> */ 916 if (slash == NULL) { 917 s_len = JLI_StrLen(s); 918 } else { 919 s_len = (size_t) (slash - s); 920 } 921 def_len = sizeof(format) 922 - 2 /* strlen("%s") */ 923 + s_len; 924 def = JLI_MemAlloc(def_len); 925 JLI_Snprintf(def, def_len, format, s); 926 AddOption(def, NULL); 927 } 928 929 static void 930 SetAddModulesProp(const char *mods) { 931 size_t buflen = JLI_StrLen(mods) + 40; 932 char *prop = (char *)JLI_MemAlloc(buflen); 933 JLI_Snprintf(prop, buflen, "-Djdk.launcher.addmods=%s", mods); 934 AddOption(prop, NULL); 935 } 936 937 static void 938 SetLimitModulesProp(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.limitmods=%s", mods); 942 AddOption(prop, NULL); 943 } 944 945 static void 946 SetAddReadsProp(const jint n, const char *s) { 947 size_t buflen = JLI_StrLen(s) + 40; 948 char *prop = (char *)JLI_MemAlloc(buflen); 949 JLI_Snprintf(prop, buflen, "-Djdk.launcher.addreads.%d=%s", n, s); 950 AddOption(prop, NULL); 951 } 952 953 static void 954 SetAddExportsProp(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.addexports.%d=%s", n, s); 958 AddOption(prop, NULL); 959 } 960 961 static void 962 SetPatchProp(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.patch.%d=%s", n, s); 966 AddOption(prop, NULL); 967 } 968 969 /* 970 * The SelectVersion() routine ensures that an appropriate version of 971 * the JRE is running. The specification for the appropriate version 972 * is obtained from either the manifest of a jar file (preferred) or 973 * from command line options. 974 * The routine also parses splash screen command line options and 975 * passes on their values in private environment variables. 976 */ 977 static void 978 SelectVersion(int argc, char **argv, char **main_class) 979 { 980 char *arg; 981 char *operand; 982 char *version = NULL; 983 char *jre = NULL; 984 int jarflag = 0; 985 int headlessflag = 0; 986 int restrict_search = -1; /* -1 implies not known */ 987 manifest_info info; 988 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 989 char *splash_file_name = NULL; 990 char *splash_jar_name = NULL; 991 char *env_in; 992 int res; 993 994 /* 995 * If the version has already been selected, set *main_class 996 * with the value passed through the environment (if any) and 997 * simply return. 998 */ 999 1000 /* 1001 * This environmental variable can be set by mJRE capable JREs 1002 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been 1003 * stripped by those JREs. This environmental variable allows 1.9+ 1004 * JREs to be started by these mJRE capable JREs. 1005 * Note that mJRE directives in the jar manifest file would have been 1006 * ignored for a JRE started by another JRE... 1007 * .. skipped for JRE 1.5 and beyond. 1008 * .. not even checked for pre 1.5. 1009 */ 1010 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 1011 if (*env_in != '\0') 1012 *main_class = JLI_StringDup(env_in); 1013 return; 1014 } 1015 1016 /* 1017 * Scan through the arguments for options relevant to multiple JRE 1018 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8. 1019 * 1020 * This capability is no longer available with JRE versions 1.9 and later. 1021 * These command line options are reported as errors. 1022 */ 1023 argc--; 1024 argv++; 1025 while ((arg = *argv) != 0 && *arg == '-') { 1026 if (JLI_StrCCmp(arg, "-version:") == 0) { 1027 JLI_ReportErrorMessage(SPC_ERROR1); 1028 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 1029 JLI_ReportErrorMessage(SPC_ERROR2); 1030 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) { 1031 JLI_ReportErrorMessage(SPC_ERROR2); 1032 } else { 1033 if (JLI_StrCmp(arg, "-jar") == 0) 1034 jarflag = 1; 1035 /* deal with "unfortunate" classpath syntax */ 1036 if ((JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) && 1037 (argc >= 2)) { 1038 argc--; 1039 argv++; 1040 arg = *argv; 1041 } 1042 1043 /* 1044 * Checking for headless toolkit option in the some way as AWT does: 1045 * "true" means true and any other value means false 1046 */ 1047 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 1048 headlessflag = 1; 1049 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 1050 headlessflag = 0; 1051 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1052 splash_file_name = arg+8; 1053 } 1054 } 1055 argc--; 1056 argv++; 1057 } 1058 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 1059 operand = NULL; 1060 } else { 1061 argc--; 1062 operand = *argv++; 1063 } 1064 1065 /* 1066 * If there is a jar file, read the manifest. If the jarfile can't be 1067 * read, the manifest can't be read from the jar file, or the manifest 1068 * is corrupt, issue the appropriate error messages and exit. 1069 * 1070 * Even if there isn't a jar file, construct a manifest_info structure 1071 * containing the command line information. It's a convenient way to carry 1072 * this data around. 1073 */ 1074 if (jarflag && operand) { 1075 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 1076 if (res == -1) 1077 JLI_ReportErrorMessage(JAR_ERROR2, operand); 1078 else 1079 JLI_ReportErrorMessage(JAR_ERROR3, operand); 1080 exit(1); 1081 } 1082 1083 /* 1084 * Command line splash screen option should have precedence 1085 * over the manifest, so the manifest data is used only if 1086 * splash_file_name has not been initialized above during command 1087 * line parsing 1088 */ 1089 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 1090 splash_file_name = info.splashscreen_image_file_name; 1091 splash_jar_name = operand; 1092 } 1093 } else { 1094 info.manifest_version = NULL; 1095 info.main_class = NULL; 1096 info.jre_version = NULL; 1097 info.jre_restrict_search = 0; 1098 } 1099 1100 /* 1101 * Passing on splash screen info in environment variables 1102 */ 1103 if (splash_file_name && !headlessflag) { 1104 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 1105 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 1106 JLI_StrCat(splash_file_entry, splash_file_name); 1107 putenv(splash_file_entry); 1108 } 1109 if (splash_jar_name && !headlessflag) { 1110 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 1111 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 1112 JLI_StrCat(splash_jar_entry, splash_jar_name); 1113 putenv(splash_jar_entry); 1114 } 1115 1116 1117 /* 1118 * "Valid" returns (other than unrecoverable errors) follow. Set 1119 * main_class as a side-effect of this routine. 1120 */ 1121 if (info.main_class != NULL) 1122 *main_class = JLI_StringDup(info.main_class); 1123 1124 if (info.jre_version == NULL) { 1125 JLI_FreeManifest(); 1126 return; 1127 } 1128 1129 } 1130 1131 /* 1132 * Parses command line arguments. Returns JNI_FALSE if launcher 1133 * should exit without starting vm, returns JNI_TRUE if vm needs 1134 * to be started to process given options. *pret (the launcher 1135 * process return value) is set to 0 for a normal exit. 1136 */ 1137 static jboolean 1138 ParseArguments(int *pargc, char ***pargv, 1139 int *pmode, char **pwhat, 1140 int *pret, const char *jrepath) 1141 { 1142 int argc = *pargc; 1143 char **argv = *pargv; 1144 int mode = LM_UNKNOWN; 1145 char *arg; 1146 1147 *pret = 0; 1148 1149 while ((arg = *argv) != 0 && *arg == '-') { 1150 argv++; --argc; 1151 if (JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) { 1152 ARG_CHECK (argc, ARG_ERROR1, arg); 1153 SetClassPath(*argv); 1154 mode = LM_CLASS; 1155 argv++; --argc; 1156 } else if (JLI_StrCmp(arg, "-modulepath") == 0 || JLI_StrCmp(arg, "-mp") == 0) { 1157 ARG_CHECK (argc, ARG_ERROR4, arg); 1158 SetModulePath(*argv); 1159 argv++; --argc; 1160 } else if (JLI_StrCmp(arg, "-upgrademodulepath") == 0) { 1161 ARG_CHECK (argc, ARG_ERROR4, arg); 1162 SetUpgradeModulePath(*argv); 1163 argv++; --argc; 1164 } else if (JLI_StrCmp(arg, "-jar") == 0) { 1165 ARG_CHECK (argc, ARG_ERROR2, arg); 1166 mode = LM_JAR; 1167 } else if (JLI_StrCmp(arg, "-m") == 0) { 1168 ARG_CHECK (argc, ARG_ERROR5, arg); 1169 SetMainModule(*argv); 1170 mode = LM_MODULE; 1171 } else if (JLI_StrCmp(arg, "-addmods") == 0) { 1172 ARG_CHECK (argc, ARG_ERROR6, arg); 1173 SetAddModulesProp(*argv); 1174 argv++; --argc; 1175 } else if (JLI_StrCmp(arg, "-limitmods") == 0) { 1176 ARG_CHECK (argc, ARG_ERROR6, arg); 1177 SetLimitModulesProp(*argv); 1178 argv++; --argc; 1179 } else if (JLI_StrCmp(arg, "-listmods") == 0 || 1180 JLI_StrCCmp(arg, "-listmods:") == 0) { 1181 listModules = arg; 1182 return JNI_TRUE; 1183 } else if (JLI_StrCCmp(arg, "-XaddReads:") == 0) { 1184 static jint n; 1185 char *value = arg + 11; 1186 SetAddReadsProp(n++, value); 1187 } else if (JLI_StrCCmp(arg, "-XaddExports:") == 0) { 1188 static jint n; 1189 char *value = arg + 13; 1190 SetAddExportsProp(n++, value); 1191 } else if (JLI_StrCCmp(arg, "-Xpatch:") == 0) { 1192 static jint n; 1193 char *value = arg + 8; 1194 SetPatchProp(n++, value); 1195 } else if (JLI_StrCmp(arg, "-help") == 0 || 1196 JLI_StrCmp(arg, "-h") == 0 || 1197 JLI_StrCmp(arg, "-?") == 0) { 1198 printUsage = JNI_TRUE; 1199 return JNI_TRUE; 1200 } else if (JLI_StrCmp(arg, "-version") == 0) { 1201 printVersion = JNI_TRUE; 1202 return JNI_TRUE; 1203 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1204 showVersion = JNI_TRUE; 1205 } else if (JLI_StrCmp(arg, "-X") == 0) { 1206 printXUsage = JNI_TRUE; 1207 return JNI_TRUE; 1208 /* 1209 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1210 * In the latter case, any SUBOPT value not recognized will default to "all" 1211 */ 1212 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1213 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1214 showSettings = arg; 1215 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1216 AddOption("-Dsun.java.launcher.diag=true", NULL); 1217 AddOption("-Djdk.launcher.traceResolver=true", NULL); 1218 } else if (JLI_StrCmp(arg, "-Xdiag:resolver") == 0) { 1219 AddOption("-Djdk.launcher.traceResolver=true", NULL); 1220 /* 1221 * The following case provide backward compatibility with old-style 1222 * command line options. 1223 */ 1224 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1225 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1226 return JNI_FALSE; 1227 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1228 AddOption("-verbose:gc", NULL); 1229 } else if (JLI_StrCmp(arg, "-t") == 0) { 1230 AddOption("-Xt", NULL); 1231 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1232 AddOption("-Xtm", NULL); 1233 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1234 AddOption("-Xdebug", NULL); 1235 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1236 AddOption("-Xnoclassgc", NULL); 1237 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1238 AddOption("-Xverify:all", NULL); 1239 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1240 AddOption("-Xverify:all", NULL); 1241 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1242 AddOption("-Xverify:remote", NULL); 1243 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1244 AddOption("-Xverify:none", NULL); 1245 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1246 JLI_StrCCmp(arg, "-oss") == 0 || 1247 JLI_StrCCmp(arg, "-ms") == 0 || 1248 JLI_StrCCmp(arg, "-mx") == 0) { 1249 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1250 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1251 AddOption(tmp, NULL); 1252 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1253 JLI_StrCmp(arg, "-cs") == 0 || 1254 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1255 /* No longer supported */ 1256 JLI_ReportErrorMessage(ARG_WARN, arg); 1257 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1258 ; /* Ignore machine independent options already handled */ 1259 } else if (ProcessPlatformOption(arg)) { 1260 ; /* Processing of platform dependent options */ 1261 } else if (RemovableOption(arg)) { 1262 ; /* Do not pass option to vm. */ 1263 } else { 1264 /* java.class.path set on the command line */ 1265 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) { 1266 _have_classpath = JNI_TRUE; 1267 } 1268 AddOption(arg, NULL); 1269 } 1270 } 1271 1272 if (--argc >= 0) { 1273 *pwhat = *argv++; 1274 } 1275 1276 if (*pwhat == NULL) { 1277 *pret = 1; 1278 } else if (mode == LM_UNKNOWN) { 1279 /* default to LM_CLASS if -m, -jar and -cp options are 1280 * not specified */ 1281 if (!_have_classpath) { 1282 SetClassPath("."); 1283 } 1284 mode = LM_CLASS; 1285 } 1286 1287 if (argc >= 0) { 1288 *pargc = argc; 1289 *pargv = argv; 1290 } 1291 1292 *pmode = mode; 1293 1294 return JNI_TRUE; 1295 } 1296 1297 /* 1298 * Initializes the Java Virtual Machine. Also frees options array when 1299 * finished. 1300 */ 1301 static jboolean 1302 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1303 { 1304 JavaVMInitArgs args; 1305 jint r; 1306 1307 memset(&args, 0, sizeof(args)); 1308 args.version = JNI_VERSION_1_2; 1309 args.nOptions = numOptions; 1310 args.options = options; 1311 args.ignoreUnrecognized = JNI_FALSE; 1312 1313 if (JLI_IsTraceLauncher()) { 1314 int i = 0; 1315 printf("JavaVM args:\n "); 1316 printf("version 0x%08lx, ", (long)args.version); 1317 printf("ignoreUnrecognized is %s, ", 1318 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1319 printf("nOptions is %ld\n", (long)args.nOptions); 1320 for (i = 0; i < numOptions; i++) 1321 printf(" option[%2d] = '%s'\n", 1322 i, args.options[i].optionString); 1323 } 1324 1325 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1326 JLI_MemFree(options); 1327 return r == JNI_OK; 1328 } 1329 1330 static jclass helperClass = NULL; 1331 1332 jclass 1333 GetLauncherHelperClass(JNIEnv *env) 1334 { 1335 if (helperClass == NULL) { 1336 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1337 "sun/launcher/LauncherHelper")); 1338 } 1339 return helperClass; 1340 } 1341 1342 static jmethodID makePlatformStringMID = NULL; 1343 /* 1344 * Returns a new Java string object for the specified platform string. 1345 */ 1346 static jstring 1347 NewPlatformString(JNIEnv *env, char *s) 1348 { 1349 int len = (int)JLI_StrLen(s); 1350 jbyteArray ary; 1351 jclass cls = GetLauncherHelperClass(env); 1352 NULL_CHECK0(cls); 1353 if (s == NULL) 1354 return 0; 1355 1356 ary = (*env)->NewByteArray(env, len); 1357 if (ary != 0) { 1358 jstring str = 0; 1359 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1360 if (!(*env)->ExceptionOccurred(env)) { 1361 if (makePlatformStringMID == NULL) { 1362 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1363 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1364 } 1365 str = (*env)->CallStaticObjectMethod(env, cls, 1366 makePlatformStringMID, USE_STDERR, ary); 1367 (*env)->DeleteLocalRef(env, ary); 1368 return str; 1369 } 1370 } 1371 return 0; 1372 } 1373 1374 /* 1375 * Returns a new array of Java string objects for the specified 1376 * array of platform strings. 1377 */ 1378 jobjectArray 1379 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1380 { 1381 jarray cls; 1382 jarray ary; 1383 int i; 1384 1385 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1386 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1387 for (i = 0; i < strc; i++) { 1388 jstring str = NewPlatformString(env, *strv++); 1389 NULL_CHECK0(str); 1390 (*env)->SetObjectArrayElement(env, ary, i, str); 1391 (*env)->DeleteLocalRef(env, str); 1392 } 1393 return ary; 1394 } 1395 1396 /* 1397 * Loads a class and verifies that the main class is present and it is ok to 1398 * call it for more details refer to the java implementation. 1399 */ 1400 static jclass 1401 LoadMainClass(JNIEnv *env, int mode, char *name) 1402 { 1403 jmethodID mid; 1404 jstring str; 1405 jobject result; 1406 jlong start, end; 1407 jclass cls = GetLauncherHelperClass(env); 1408 NULL_CHECK0(cls); 1409 if (JLI_IsTraceLauncher()) { 1410 start = CounterGet(); 1411 } 1412 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1413 "checkAndLoadMain", 1414 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1415 1416 NULL_CHECK0(str = NewPlatformString(env, name)); 1417 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1418 USE_STDERR, mode, str)); 1419 1420 if (JLI_IsTraceLauncher()) { 1421 end = CounterGet(); 1422 printf("%ld micro seconds to load main class\n", 1423 (long)(jint)Counter2Micros(end-start)); 1424 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1425 } 1426 1427 return (jclass)result; 1428 } 1429 1430 static jclass 1431 GetApplicationClass(JNIEnv *env) 1432 { 1433 jmethodID mid; 1434 jclass cls = GetLauncherHelperClass(env); 1435 NULL_CHECK0(cls); 1436 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1437 "getApplicationClass", 1438 "()Ljava/lang/Class;")); 1439 1440 return (*env)->CallStaticObjectMethod(env, cls, mid); 1441 } 1442 1443 /* 1444 * For tools, convert command line args thus: 1445 * javac -cp foo:foo/"*" -J-ms32m ... 1446 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1447 * 1448 * Takes 4 parameters, and returns the populated arguments 1449 */ 1450 static void 1451 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1452 { 1453 int argc = *pargc; 1454 char **argv = *pargv; 1455 int nargc = argc + jargc; 1456 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1457 int i; 1458 1459 *pargc = nargc; 1460 *pargv = nargv; 1461 1462 /* Copy the VM arguments (i.e. prefixed with -J) */ 1463 for (i = 0; i < jargc; i++) { 1464 const char *arg = jargv[i]; 1465 if (arg[0] == '-' && arg[1] == 'J') { 1466 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1467 } 1468 } 1469 1470 for (i = 0; i < argc; i++) { 1471 char *arg = argv[i]; 1472 if (arg[0] == '-' && arg[1] == 'J') { 1473 if (arg[2] == '\0') { 1474 JLI_ReportErrorMessage(ARG_ERROR3); 1475 exit(1); 1476 } 1477 *nargv++ = arg + 2; 1478 } 1479 } 1480 1481 /* Copy the rest of the arguments */ 1482 for (i = 0; i < jargc ; i++) { 1483 const char *arg = jargv[i]; 1484 if (arg[0] != '-' || arg[1] != 'J') { 1485 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1486 } 1487 } 1488 for (i = 0; i < argc; i++) { 1489 char *arg = argv[i]; 1490 if (arg[0] == '-') { 1491 if (arg[1] == 'J') 1492 continue; 1493 if (IsWildCardEnabled() && arg[1] == 'c' 1494 && (JLI_StrCmp(arg, "-cp") == 0 || 1495 JLI_StrCmp(arg, "-classpath") == 0) 1496 && i < argc - 1) { 1497 *nargv++ = arg; 1498 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1499 i++; 1500 continue; 1501 } 1502 } 1503 *nargv++ = arg; 1504 } 1505 *nargv = 0; 1506 } 1507 1508 /* 1509 * For our tools, we try to add 3 VM options: 1510 * -Denv.class.path=<envcp> 1511 * -Dapplication.home=<apphome> 1512 * -Djava.class.path=<appcp> 1513 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1514 * tells javac where to find binary classes through this environment 1515 * variable. Notice that users will be able to compile against our 1516 * tools classes (sun.tools.javac.Main) only if they explicitly add 1517 * tools.jar to CLASSPATH. 1518 * <apphome> is the directory where the application is installed. 1519 * <appcp> is the classpath to where our apps' classfiles are. 1520 */ 1521 static jboolean 1522 AddApplicationOptions(int cpathc, const char **cpathv) 1523 { 1524 char *envcp, *appcp, *apphome; 1525 char home[MAXPATHLEN]; /* application home */ 1526 char separator[] = { PATH_SEPARATOR, '\0' }; 1527 int size, i; 1528 1529 { 1530 const char *s = getenv("CLASSPATH"); 1531 if (s) { 1532 s = (char *) JLI_WildcardExpandClasspath(s); 1533 /* 40 for -Denv.class.path= */ 1534 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1535 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1536 sprintf(envcp, "-Denv.class.path=%s", s); 1537 AddOption(envcp, NULL); 1538 } 1539 } 1540 } 1541 1542 if (!GetApplicationHome(home, sizeof(home))) { 1543 JLI_ReportErrorMessage(CFG_ERROR5); 1544 return JNI_FALSE; 1545 } 1546 1547 /* 40 for '-Dapplication.home=' */ 1548 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1549 sprintf(apphome, "-Dapplication.home=%s", home); 1550 AddOption(apphome, NULL); 1551 1552 /* How big is the application's classpath? */ 1553 size = 40; /* 40: "-Djava.class.path=" */ 1554 for (i = 0; i < cpathc; i++) { 1555 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1556 } 1557 appcp = (char *)JLI_MemAlloc(size + 1); 1558 JLI_StrCpy(appcp, "-Djava.class.path="); 1559 for (i = 0; i < cpathc; i++) { 1560 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1561 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1562 JLI_StrCat(appcp, separator); /* ; */ 1563 } 1564 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1565 AddOption(appcp, NULL); 1566 return JNI_TRUE; 1567 } 1568 1569 /* 1570 * inject the -Dsun.java.command pseudo property into the args structure 1571 * this pseudo property is used in the HotSpot VM to expose the 1572 * Java class name and arguments to the main method to the VM. The 1573 * HotSpot VM uses this pseudo property to store the Java class name 1574 * (or jar file name) and the arguments to the class's main method 1575 * to the instrumentation memory region. The sun.java.command pseudo 1576 * property is not exported by HotSpot to the Java layer. 1577 */ 1578 void 1579 SetJavaCommandLineProp(char *what, int argc, char **argv) 1580 { 1581 1582 int i = 0; 1583 size_t len = 0; 1584 char* javaCommand = NULL; 1585 char* dashDstr = "-Dsun.java.command="; 1586 1587 if (what == NULL) { 1588 /* unexpected, one of these should be set. just return without 1589 * setting the property 1590 */ 1591 return; 1592 } 1593 1594 /* determine the amount of memory to allocate assuming 1595 * the individual components will be space separated 1596 */ 1597 len = JLI_StrLen(what); 1598 for (i = 0; i < argc; i++) { 1599 len += JLI_StrLen(argv[i]) + 1; 1600 } 1601 1602 /* allocate the memory */ 1603 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1604 1605 /* build the -D string */ 1606 *javaCommand = '\0'; 1607 JLI_StrCat(javaCommand, dashDstr); 1608 JLI_StrCat(javaCommand, what); 1609 1610 for (i = 0; i < argc; i++) { 1611 /* the components of the string are space separated. In 1612 * the case of embedded white space, the relationship of 1613 * the white space separated components to their true 1614 * positional arguments will be ambiguous. This issue may 1615 * be addressed in a future release. 1616 */ 1617 JLI_StrCat(javaCommand, " "); 1618 JLI_StrCat(javaCommand, argv[i]); 1619 } 1620 1621 AddOption(javaCommand, NULL); 1622 } 1623 1624 /* 1625 * JVM would like to know if it's created by a standard Sun launcher, or by 1626 * user native application, the following property indicates the former. 1627 */ 1628 void 1629 SetJavaLauncherProp() { 1630 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1631 } 1632 1633 /* 1634 * Prints the version information from the java.version and other properties. 1635 */ 1636 static void 1637 PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1638 { 1639 jclass ver; 1640 jmethodID print; 1641 1642 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps")); 1643 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1644 ver, 1645 (extraLF == JNI_TRUE) ? "println" : "print", 1646 "()V" 1647 ) 1648 ); 1649 1650 (*env)->CallStaticVoidMethod(env, ver, print); 1651 } 1652 1653 /* 1654 * Prints all the Java settings, see the java implementation for more details. 1655 */ 1656 static void 1657 ShowSettings(JNIEnv *env, char *optString) 1658 { 1659 jmethodID showSettingsID; 1660 jstring joptString; 1661 jclass cls = GetLauncherHelperClass(env); 1662 NULL_CHECK(cls); 1663 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1664 "showSettings", "(ZLjava/lang/String;JJJZ)V")); 1665 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1666 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1667 USE_STDERR, 1668 joptString, 1669 (jlong)initialHeapSize, 1670 (jlong)maxHeapSize, 1671 (jlong)threadStackSize, 1672 ServerClassMachine()); 1673 } 1674 1675 /** 1676 * List modules supported by the runtime 1677 */ 1678 static void 1679 ListModules(JNIEnv *env, char *optString) 1680 { 1681 jmethodID listModulesID; 1682 jstring joptString; 1683 jclass cls = GetLauncherHelperClass(env); 1684 NULL_CHECK(cls); 1685 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls, 1686 "listModules", "(ZLjava/lang/String;)V")); 1687 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1688 (*env)->CallStaticVoidMethod(env, cls, listModulesID, 1689 USE_STDERR, 1690 joptString); 1691 } 1692 1693 /** 1694 * Set native thread name as possible. 1695 */ 1696 static void 1697 SetNativeThreadName(JNIEnv *env, char *name) 1698 { 1699 jmethodID currentThreadID, setNativeNameID; 1700 jobject currentThread; 1701 jstring nameString; 1702 jclass cls; 1703 1704 NULL_CHECK(cls = FindBootStrapClass(env, "java/lang/Thread")); 1705 NULL_CHECK(currentThreadID = (*env)->GetStaticMethodID(env, cls, 1706 "currentThread", "()Ljava/lang/Thread;")); 1707 NULL_CHECK(currentThread = (*env)->CallStaticObjectMethod(env, cls, 1708 currentThreadID)); 1709 NULL_CHECK(setNativeNameID = (*env)->GetMethodID(env, cls, 1710 "setNativeName", "(Ljava/lang/String;Z)V")); 1711 NULL_CHECK(nameString = (*env)->NewStringUTF(env, name)); 1712 (*env)->CallVoidMethod(env, currentThread, setNativeNameID, 1713 nameString, JNI_TRUE); 1714 1715 if ((*env)->ExceptionOccurred(env)) { 1716 /* 1717 * We can clear pending exception because exception at this point 1718 * is not critical. 1719 */ 1720 (*env)->ExceptionClear(env); 1721 } 1722 } 1723 1724 /* 1725 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1726 */ 1727 static void 1728 PrintUsage(JNIEnv* env, jboolean doXUsage) 1729 { 1730 jmethodID initHelp, vmSelect, vmSynonym, vmErgo, printHelp, printXUsageMessage; 1731 jstring jprogname, vm1, vm2; 1732 int i; 1733 jclass cls = GetLauncherHelperClass(env); 1734 NULL_CHECK(cls); 1735 if (doXUsage) { 1736 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1737 "printXUsageMessage", "(Z)V")); 1738 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, USE_STDERR); 1739 } else { 1740 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1741 "initHelpMessage", "(Ljava/lang/String;)V")); 1742 1743 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1744 "(Ljava/lang/String;Ljava/lang/String;)V")); 1745 1746 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1747 "appendVmSynonymMessage", 1748 "(Ljava/lang/String;Ljava/lang/String;)V")); 1749 NULL_CHECK(vmErgo = (*env)->GetStaticMethodID(env, cls, 1750 "appendVmErgoMessage", "(ZLjava/lang/String;)V")); 1751 1752 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1753 "printHelpMessage", "(Z)V")); 1754 1755 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1756 1757 /* Initialize the usage message with the usual preamble */ 1758 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1759 CHECK_EXCEPTION_RETURN(); 1760 1761 1762 /* Assemble the other variant part of the usage */ 1763 if ((knownVMs[0].flag == VM_KNOWN) || 1764 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { 1765 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[0].name)); 1766 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[0].name+1)); 1767 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1768 CHECK_EXCEPTION_RETURN(); 1769 } 1770 for (i=1; i<knownVMsCount; i++) { 1771 if (knownVMs[i].flag == VM_KNOWN) { 1772 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1773 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 1774 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1775 CHECK_EXCEPTION_RETURN(); 1776 } 1777 } 1778 for (i=1; i<knownVMsCount; i++) { 1779 if (knownVMs[i].flag == VM_ALIASED_TO) { 1780 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1781 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 1782 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1783 CHECK_EXCEPTION_RETURN(); 1784 } 1785 } 1786 1787 /* The first known VM is the default */ 1788 { 1789 jboolean isServerClassMachine = ServerClassMachine(); 1790 1791 const char* defaultVM = knownVMs[0].name+1; 1792 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && isServerClassMachine) { 1793 defaultVM = knownVMs[0].server_class+1; 1794 } 1795 1796 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, defaultVM)); 1797 (*env)->CallStaticVoidMethod(env, cls, vmErgo, isServerClassMachine, vm1); 1798 CHECK_EXCEPTION_RETURN(); 1799 } 1800 1801 /* Complete the usage message and print to stderr*/ 1802 (*env)->CallStaticVoidMethod(env, cls, printHelp, USE_STDERR); 1803 } 1804 return; 1805 } 1806 1807 /* 1808 * Read the jvm.cfg file and fill the knownJVMs[] array. 1809 * 1810 * The functionality of the jvm.cfg file is subject to change without 1811 * notice and the mechanism will be removed in the future. 1812 * 1813 * The lexical structure of the jvm.cfg file is as follows: 1814 * 1815 * jvmcfg := { vmLine } 1816 * vmLine := knownLine 1817 * | aliasLine 1818 * | warnLine 1819 * | ignoreLine 1820 * | errorLine 1821 * | predicateLine 1822 * | commentLine 1823 * knownLine := flag "KNOWN" EOL 1824 * warnLine := flag "WARN" EOL 1825 * ignoreLine := flag "IGNORE" EOL 1826 * errorLine := flag "ERROR" EOL 1827 * aliasLine := flag "ALIASED_TO" flag EOL 1828 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 1829 * commentLine := "#" text EOL 1830 * flag := "-" identifier 1831 * 1832 * The semantics are that when someone specifies a flag on the command line: 1833 * - if the flag appears on a knownLine, then the identifier is used as 1834 * the name of the directory holding the JVM library (the name of the JVM). 1835 * - if the flag appears as the first flag on an aliasLine, the identifier 1836 * of the second flag is used as the name of the JVM. 1837 * - if the flag appears on a warnLine, the identifier is used as the 1838 * name of the JVM, but a warning is generated. 1839 * - if the flag appears on an ignoreLine, the identifier is recognized as the 1840 * name of a JVM, but the identifier is ignored and the default vm used 1841 * - if the flag appears on an errorLine, an error is generated. 1842 * - if the flag appears as the first flag on a predicateLine, and 1843 * the machine on which you are running passes the predicate indicated, 1844 * then the identifier of the second flag is used as the name of the JVM, 1845 * otherwise the identifier of the first flag is used as the name of the JVM. 1846 * If no flag is given on the command line, the first vmLine of the jvm.cfg 1847 * file determines the name of the JVM. 1848 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 1849 * since they only make sense if someone hasn't specified the name of the 1850 * JVM on the command line. 1851 * 1852 * The intent of the jvm.cfg file is to allow several JVM libraries to 1853 * be installed in different subdirectories of a single JRE installation, 1854 * for space-savings and convenience in testing. 1855 * The intent is explicitly not to provide a full aliasing or predicate 1856 * mechanism. 1857 */ 1858 jint 1859 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 1860 { 1861 FILE *jvmCfg; 1862 char line[MAXPATHLEN+20]; 1863 int cnt = 0; 1864 int lineno = 0; 1865 jlong start, end; 1866 int vmType; 1867 char *tmpPtr; 1868 char *altVMName = NULL; 1869 char *serverClassVMName = NULL; 1870 static char *whiteSpace = " \t"; 1871 if (JLI_IsTraceLauncher()) { 1872 start = CounterGet(); 1873 } 1874 1875 jvmCfg = fopen(jvmCfgName, "r"); 1876 if (jvmCfg == NULL) { 1877 if (!speculative) { 1878 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 1879 exit(1); 1880 } else { 1881 return -1; 1882 } 1883 } 1884 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 1885 vmType = VM_UNKNOWN; 1886 lineno++; 1887 if (line[0] == '#') 1888 continue; 1889 if (line[0] != '-') { 1890 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 1891 } 1892 if (cnt >= knownVMsLimit) { 1893 GrowKnownVMs(cnt); 1894 } 1895 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 1896 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 1897 if (*tmpPtr == 0) { 1898 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1899 } else { 1900 /* Null-terminate this string for JLI_StringDup below */ 1901 *tmpPtr++ = 0; 1902 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1903 if (*tmpPtr == 0) { 1904 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1905 } else { 1906 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 1907 vmType = VM_KNOWN; 1908 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 1909 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1910 if (*tmpPtr != 0) { 1911 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1912 } 1913 if (*tmpPtr == 0) { 1914 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1915 } else { 1916 /* Null terminate altVMName */ 1917 altVMName = tmpPtr; 1918 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1919 *tmpPtr = 0; 1920 vmType = VM_ALIASED_TO; 1921 } 1922 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 1923 vmType = VM_WARN; 1924 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 1925 vmType = VM_IGNORE; 1926 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 1927 vmType = VM_ERROR; 1928 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 1929 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1930 if (*tmpPtr != 0) { 1931 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1932 } 1933 if (*tmpPtr == 0) { 1934 JLI_ReportErrorMessage(CFG_WARN4, lineno, jvmCfgName); 1935 } else { 1936 /* Null terminate server class VM name */ 1937 serverClassVMName = tmpPtr; 1938 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1939 *tmpPtr = 0; 1940 vmType = VM_IF_SERVER_CLASS; 1941 } 1942 } else { 1943 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 1944 vmType = VM_KNOWN; 1945 } 1946 } 1947 } 1948 1949 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 1950 if (vmType != VM_UNKNOWN) { 1951 knownVMs[cnt].name = JLI_StringDup(line); 1952 knownVMs[cnt].flag = vmType; 1953 switch (vmType) { 1954 default: 1955 break; 1956 case VM_ALIASED_TO: 1957 knownVMs[cnt].alias = JLI_StringDup(altVMName); 1958 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 1959 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 1960 break; 1961 case VM_IF_SERVER_CLASS: 1962 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName); 1963 JLI_TraceLauncher(" name: %s vmType: %s server_class: %s\n", 1964 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); 1965 break; 1966 } 1967 cnt++; 1968 } 1969 } 1970 fclose(jvmCfg); 1971 knownVMsCount = cnt; 1972 1973 if (JLI_IsTraceLauncher()) { 1974 end = CounterGet(); 1975 printf("%ld micro seconds to parse jvm.cfg\n", 1976 (long)(jint)Counter2Micros(end-start)); 1977 } 1978 1979 return cnt; 1980 } 1981 1982 1983 static void 1984 GrowKnownVMs(int minimum) 1985 { 1986 struct vmdesc* newKnownVMs; 1987 int newMax; 1988 1989 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 1990 if (newMax <= minimum) { 1991 newMax = minimum; 1992 } 1993 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 1994 if (knownVMs != NULL) { 1995 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 1996 } 1997 JLI_MemFree(knownVMs); 1998 knownVMs = newKnownVMs; 1999 knownVMsLimit = newMax; 2000 } 2001 2002 2003 /* Returns index of VM or -1 if not found */ 2004 static int 2005 KnownVMIndex(const char* name) 2006 { 2007 int i; 2008 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 2009 for (i = 0; i < knownVMsCount; i++) { 2010 if (!JLI_StrCmp(name, knownVMs[i].name)) { 2011 return i; 2012 } 2013 } 2014 return -1; 2015 } 2016 2017 static void 2018 FreeKnownVMs() 2019 { 2020 int i; 2021 for (i = 0; i < knownVMsCount; i++) { 2022 JLI_MemFree(knownVMs[i].name); 2023 knownVMs[i].name = NULL; 2024 } 2025 JLI_MemFree(knownVMs); 2026 } 2027 2028 /* 2029 * Displays the splash screen according to the jar file name 2030 * and image file names stored in environment variables 2031 */ 2032 void 2033 ShowSplashScreen() 2034 { 2035 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 2036 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 2037 int data_size; 2038 void *image_data = NULL; 2039 float scale_factor = 1; 2040 char *scaled_splash_name = NULL; 2041 jboolean isImageScaled = JNI_FALSE; 2042 size_t maxScaledImgNameLength = 0; 2043 if (file_name == NULL){ 2044 return; 2045 } 2046 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name); 2047 2048 scaled_splash_name = JLI_MemAlloc( 2049 maxScaledImgNameLength * sizeof(char)); 2050 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name, 2051 &scale_factor, 2052 scaled_splash_name, maxScaledImgNameLength); 2053 if (jar_name) { 2054 2055 if (isImageScaled) { 2056 image_data = JLI_JarUnpackFile( 2057 jar_name, scaled_splash_name, &data_size); 2058 } 2059 2060 if (!image_data) { 2061 scale_factor = 1; 2062 image_data = JLI_JarUnpackFile( 2063 jar_name, file_name, &data_size); 2064 } 2065 if (image_data) { 2066 DoSplashInit(); 2067 DoSplashSetScaleFactor(scale_factor); 2068 DoSplashLoadMemory(image_data, data_size); 2069 JLI_MemFree(image_data); 2070 } 2071 } else { 2072 DoSplashInit(); 2073 if (isImageScaled) { 2074 DoSplashSetScaleFactor(scale_factor); 2075 DoSplashLoadFile(scaled_splash_name); 2076 } else { 2077 DoSplashLoadFile(file_name); 2078 } 2079 } 2080 JLI_MemFree(scaled_splash_name); 2081 2082 DoSplashSetFileJarName(file_name, jar_name); 2083 2084 /* 2085 * Done with all command line processing and potential re-execs so 2086 * clean up the environment. 2087 */ 2088 (void)UnsetEnv(ENV_ENTRY); 2089 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 2090 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 2091 2092 JLI_MemFree(splash_jar_entry); 2093 JLI_MemFree(splash_file_entry); 2094 2095 } 2096 2097 const char* 2098 GetFullVersion() 2099 { 2100 return _fVersion; 2101 } 2102 2103 const char* 2104 GetProgramName() 2105 { 2106 return _program_name; 2107 } 2108 2109 const char* 2110 GetLauncherName() 2111 { 2112 return _launcher_name; 2113 } 2114 2115 jint 2116 GetErgoPolicy() 2117 { 2118 return _ergo_policy; 2119 } 2120 2121 jboolean 2122 IsJavaArgs() 2123 { 2124 return _is_java_args; 2125 } 2126 2127 static jboolean 2128 IsWildCardEnabled() 2129 { 2130 return _wc_enabled; 2131 } 2132 2133 int 2134 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 2135 int argc, char **argv, 2136 int mode, char *what, int ret) 2137 { 2138 2139 /* 2140 * If user doesn't specify stack size, check if VM has a preference. 2141 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 2142 * return its default stack size through the init args structure. 2143 */ 2144 if (threadStackSize == 0) { 2145 struct JDK1_1InitArgs args1_1; 2146 memset((void*)&args1_1, 0, sizeof(args1_1)); 2147 args1_1.version = JNI_VERSION_1_1; 2148 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 2149 if (args1_1.javaStackSize > 0) { 2150 threadStackSize = args1_1.javaStackSize; 2151 } 2152 } 2153 2154 { /* Create a new thread to create JVM and invoke main method */ 2155 JavaMainArgs args; 2156 int rslt; 2157 2158 args.argc = argc; 2159 args.argv = argv; 2160 args.mode = mode; 2161 args.what = what; 2162 args.ifn = *ifn; 2163 2164 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args); 2165 /* If the caller has deemed there is an error we 2166 * simply return that, otherwise we return the value of 2167 * the callee 2168 */ 2169 return (ret != 0) ? ret : rslt; 2170 } 2171 } 2172 2173 static void 2174 DumpState() 2175 { 2176 if (!JLI_IsTraceLauncher()) return ; 2177 printf("Launcher state:\n"); 2178 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex()); 2179 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 2180 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 2181 printf("\tprogram name:%s\n", GetProgramName()); 2182 printf("\tlauncher name:%s\n", GetLauncherName()); 2183 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 2184 printf("\tfullversion:%s\n", GetFullVersion()); 2185 printf("\tergo_policy:"); 2186 switch(GetErgoPolicy()) { 2187 case NEVER_SERVER_CLASS: 2188 printf("NEVER_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 2189 break; 2190 case ALWAYS_SERVER_CLASS: 2191 printf("ALWAYS_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 2192 break; 2193 default: 2194 printf("DEFAULT_ERGONOMICS_POLICY\n"); 2195 } 2196 } 2197 2198 /* 2199 * Return JNI_TRUE for an option string that has no effect but should 2200 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On 2201 * Solaris SPARC, this screening needs to be done if: 2202 * -d32 or -d64 is passed to a binary with an unmatched data model 2203 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the 2204 * exec to the proper binary). In the case of when the data model and the 2205 * requested version is matched, an exec would not occur, and these options 2206 * were erroneously passed to the vm. 2207 */ 2208 jboolean 2209 RemovableOption(char * option) 2210 { 2211 /* 2212 * Unconditionally remove both -d32 and -d64 options since only 2213 * the last such options has an effect; e.g. 2214 * java -d32 -d64 -d32 -version 2215 * is equivalent to 2216 * java -d32 -version 2217 */ 2218 2219 if( (JLI_StrCCmp(option, "-d32") == 0 ) || 2220 (JLI_StrCCmp(option, "-d64") == 0 ) ) 2221 return JNI_TRUE; 2222 else 2223 return JNI_FALSE; 2224 } 2225 2226 /* 2227 * A utility procedure to always print to stderr 2228 */ 2229 void 2230 JLI_ReportMessage(const char* fmt, ...) 2231 { 2232 va_list vl; 2233 va_start(vl, fmt); 2234 vfprintf(stderr, fmt, vl); 2235 fprintf(stderr, "\n"); 2236 va_end(vl); 2237 }