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 73 static const char *_program_name; 74 static const char *_launcher_name; 75 static jboolean _is_java_args = JNI_FALSE; 76 static const char *_fVersion; 77 static const char *_dVersion; 78 static jboolean _wc_enabled = JNI_FALSE; 79 static jint _ergo_policy = DEFAULT_POLICY; 80 81 /* 82 * Entries for splash screen environment variables. 83 * putenv is performed in SelectVersion. We need 84 * them in memory until UnsetEnv, so they are made static 85 * global instead of auto local. 86 */ 87 static char* splash_file_entry = NULL; 88 static char* splash_jar_entry = NULL; 89 90 /* 91 * List of VM options to be specified when the VM is created. 92 */ 93 static JavaVMOption *options; 94 static int numOptions, maxOptions; 95 96 /* 97 * Prototypes for functions internal to launcher. 98 */ 99 static void SetClassPath(const char *s); 100 static void SelectVersion(int argc, char **argv, char **main_class); 101 static void SetJvmEnvironment(int argc, char **argv); 102 static jboolean ParseArguments(int *pargc, char ***pargv, 103 int *pmode, char **pwhat, 104 int *pret, const char *jrepath); 105 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, 106 InvocationFunctions *ifn); 107 static jstring NewPlatformString(JNIEnv *env, char *s); 108 static jclass LoadMainClass(JNIEnv *env, int mode, char *name); 109 static jclass GetApplicationClass(JNIEnv *env); 110 111 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv); 112 static jboolean AddApplicationOptions(int cpathc, const char **cpathv); 113 static void SetApplicationClassPath(const char**); 114 115 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF); 116 static void PrintUsage(JNIEnv* env, jboolean doXUsage); 117 static void ShowSettings(JNIEnv* env, char *optString); 118 119 static void SetPaths(int argc, char **argv); 120 121 static void DumpState(); 122 static jboolean RemovableOption(char *option); 123 124 /* Maximum supported entries from jvm.cfg. */ 125 #define INIT_MAX_KNOWN_VMS 10 126 127 /* Values for vmdesc.flag */ 128 enum vmdesc_flag { 129 VM_UNKNOWN = -1, 130 VM_KNOWN, 131 VM_ALIASED_TO, 132 VM_WARN, 133 VM_ERROR, 134 VM_IF_SERVER_CLASS, 135 VM_IGNORE 136 }; 137 138 struct vmdesc { 139 char *name; 140 int flag; 141 char *alias; 142 char *server_class; 143 }; 144 static struct vmdesc *knownVMs = NULL; 145 static int knownVMsCount = 0; 146 static int knownVMsLimit = 0; 147 148 static void GrowKnownVMs(); 149 static int KnownVMIndex(const char* name); 150 static void FreeKnownVMs(); 151 static jboolean IsWildCardEnabled(); 152 153 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \ 154 do { \ 155 if (AC_arg_count < 1) { \ 156 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \ 157 printUsage = JNI_TRUE; \ 158 *pret = 1; \ 159 return JNI_TRUE; \ 160 } \ 161 } while (JNI_FALSE) 162 163 /* 164 * Running Java code in primordial thread caused many problems. We will 165 * create a new thread to invoke JVM. See 6316197 for more information. 166 */ 167 static jlong threadStackSize = 0; /* stack size of the new thread */ 168 static jlong maxHeapSize = 0; /* max heap size */ 169 static jlong initialHeapSize = 0; /* inital heap size */ 170 171 /* 172 * A minimum -Xss stack size suitable for all platforms. 173 */ 174 #ifndef STACK_SIZE_MINIMUM 175 #define STACK_SIZE_MINIMUM (32 * KB) 176 #endif 177 178 /* 179 * Entry point. 180 */ 181 int 182 JLI_Launch(int argc, char ** argv, /* main argc, argc */ 183 int jargc, const char** jargv, /* java args */ 184 int appclassc, const char** appclassv, /* app classpath */ 185 const char* fullversion, /* full version defined */ 186 const char* dotversion, /* dot version defined */ 187 const char* pname, /* program name */ 188 const char* lname, /* launcher name */ 189 jboolean javaargs, /* JAVA_ARGS */ 190 jboolean cpwildcard, /* classpath wildcard*/ 191 jboolean javaw, /* windows-only javaw */ 192 jint ergo /* ergonomics class policy */ 193 ) 194 { 195 int mode = LM_UNKNOWN; 196 char *what = NULL; 197 char *cpath = 0; 198 char *main_class = NULL; 199 int ret; 200 InvocationFunctions ifn; 201 jlong start, end; 202 char jvmpath[MAXPATHLEN]; 203 char jrepath[MAXPATHLEN]; 204 char jvmcfg[MAXPATHLEN]; 205 206 _fVersion = fullversion; 207 _dVersion = dotversion; 208 _launcher_name = lname; 209 _program_name = pname; 210 _is_java_args = javaargs; 211 _wc_enabled = cpwildcard; 212 _ergo_policy = ergo; 213 214 InitLauncher(javaw); 215 DumpState(); 216 if (JLI_IsTraceLauncher()) { 217 int i; 218 printf("Command line args:\n"); 219 for (i = 0; i < argc ; i++) { 220 printf("argv[%d] = %s\n", i, argv[i]); 221 } 222 AddOption("-Dsun.java.launcher.diag=true", NULL); 223 } 224 225 /* 226 * SelectVersion() has several responsibilities: 227 * 228 * 1) Disallow specification of another JRE. With 1.9, another 229 * version of the JRE cannot be invoked. 230 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since 231 * all mJRE directives have been stripped from the request but 232 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been 233 * invoked from the command line. 234 */ 235 SelectVersion(argc, argv, &main_class); 236 237 CreateExecutionEnvironment(&argc, &argv, 238 jrepath, sizeof(jrepath), 239 jvmpath, sizeof(jvmpath), 240 jvmcfg, sizeof(jvmcfg)); 241 242 if (!IsJavaArgs()) { 243 SetJvmEnvironment(argc,argv); 244 } 245 246 ifn.CreateJavaVM = 0; 247 ifn.GetDefaultJavaVMInitArgs = 0; 248 249 if (JLI_IsTraceLauncher()) { 250 start = CounterGet(); 251 } 252 253 if (!LoadJavaVM(jvmpath, &ifn)) { 254 return(6); 255 } 256 257 if (JLI_IsTraceLauncher()) { 258 end = CounterGet(); 259 } 260 261 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", 262 (long)(jint)Counter2Micros(end-start)); 263 264 ++argv; 265 --argc; 266 267 if (IsJavaArgs()) { 268 /* Preprocess wrapper arguments */ 269 TranslateApplicationArgs(jargc, jargv, &argc, &argv); 270 if (!AddApplicationOptions(appclassc, appclassv)) { 271 return(1); 272 } 273 } else { 274 /* Set default CLASSPATH */ 275 cpath = getenv("CLASSPATH"); 276 if (cpath == NULL) { 277 cpath = "."; 278 } 279 SetClassPath(cpath); 280 } 281 282 /* Parse command line options; if the return value of 283 * ParseArguments is false, the program should exit. 284 */ 285 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) 286 { 287 return(ret); 288 } 289 290 /* Override class path if -jar flag was specified */ 291 if (mode == LM_JAR) { 292 SetClassPath(what); /* Override class path */ 293 } 294 295 /* set the -Dsun.java.command pseudo property */ 296 SetJavaCommandLineProp(what, argc, argv); 297 298 /* Set the -Dsun.java.launcher pseudo property */ 299 SetJavaLauncherProp(); 300 301 /* set the -Dsun.java.launcher.* platform properties */ 302 SetJavaLauncherPlatformProps(); 303 304 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret); 305 } 306 /* 307 * Always detach the main thread so that it appears to have ended when 308 * the application's main method exits. This will invoke the 309 * uncaught exception handler machinery if main threw an 310 * exception. An uncaught exception handler cannot change the 311 * launcher's return code except by calling System.exit. 312 * 313 * Wait for all non-daemon threads to end, then destroy the VM. 314 * This will actually create a trivial new Java waiter thread 315 * named "DestroyJavaVM", but this will be seen as a different 316 * thread from the one that executed main, even though they are 317 * the same C thread. This allows mainThread.join() and 318 * mainThread.isAlive() to work as expected. 319 */ 320 #define LEAVE() \ 321 do { \ 322 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \ 323 JLI_ReportErrorMessage(JVM_ERROR2); \ 324 ret = 1; \ 325 } \ 326 if (JNI_TRUE) { \ 327 (*vm)->DestroyJavaVM(vm); \ 328 return ret; \ 329 } \ 330 } while (JNI_FALSE) 331 332 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \ 333 do { \ 334 if ((*env)->ExceptionOccurred(env)) { \ 335 JLI_ReportExceptionDescription(env); \ 336 LEAVE(); \ 337 } \ 338 if ((CENL_exception) == NULL) { \ 339 JLI_ReportErrorMessage(JNI_ERROR); \ 340 LEAVE(); \ 341 } \ 342 } while (JNI_FALSE) 343 344 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \ 345 do { \ 346 if ((*env)->ExceptionOccurred(env)) { \ 347 JLI_ReportExceptionDescription(env); \ 348 ret = (CEL_return_value); \ 349 LEAVE(); \ 350 } \ 351 } while (JNI_FALSE) 352 353 354 int JNICALL 355 JavaMain(void * _args) 356 { 357 JavaMainArgs *args = (JavaMainArgs *)_args; 358 int argc = args->argc; 359 char **argv = args->argv; 360 int mode = args->mode; 361 char *what = args->what; 362 InvocationFunctions ifn = args->ifn; 363 364 JavaVM *vm = 0; 365 JNIEnv *env = 0; 366 jclass mainClass = NULL; 367 jclass appClass = NULL; // actual application class being launched 368 jmethodID mainID; 369 jobjectArray mainArgs; 370 int ret = 0; 371 jlong start, end; 372 373 RegisterThread(); 374 375 /* Initialize the virtual machine */ 376 start = CounterGet(); 377 if (!InitializeJVM(&vm, &env, &ifn)) { 378 JLI_ReportErrorMessage(JVM_ERROR1); 379 exit(1); 380 } 381 382 if (showSettings != NULL) { 383 ShowSettings(env, showSettings); 384 CHECK_EXCEPTION_LEAVE(1); 385 } 386 387 if (printVersion || showVersion) { 388 PrintJavaVersion(env, showVersion); 389 CHECK_EXCEPTION_LEAVE(0); 390 if (printVersion) { 391 LEAVE(); 392 } 393 } 394 395 /* If the user specified neither a class name nor a JAR file */ 396 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) { 397 PrintUsage(env, printXUsage); 398 CHECK_EXCEPTION_LEAVE(1); 399 LEAVE(); 400 } 401 402 FreeKnownVMs(); /* after last possible PrintUsage() */ 403 404 if (JLI_IsTraceLauncher()) { 405 end = CounterGet(); 406 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", 407 (long)(jint)Counter2Micros(end-start)); 408 } 409 410 /* At this stage, argc/argv have the application's arguments */ 411 if (JLI_IsTraceLauncher()){ 412 int i; 413 printf("%s is '%s'\n", launchModeNames[mode], what); 414 printf("App's argc is %d\n", argc); 415 for (i=0; i < argc; i++) { 416 printf(" argv[%2d] = '%s'\n", i, argv[i]); 417 } 418 } 419 420 ret = 1; 421 422 /* 423 * Get the application's main class. 424 * 425 * See bugid 5030265. The Main-Class name has already been parsed 426 * from the manifest, but not parsed properly for UTF-8 support. 427 * Hence the code here ignores the value previously extracted and 428 * uses the pre-existing code to reextract the value. This is 429 * possibly an end of release cycle expedient. However, it has 430 * also been discovered that passing some character sets through 431 * the environment has "strange" behavior on some variants of 432 * Windows. Hence, maybe the manifest parsing code local to the 433 * launcher should never be enhanced. 434 * 435 * Hence, future work should either: 436 * 1) Correct the local parsing code and verify that the 437 * Main-Class attribute gets properly passed through 438 * all environments, 439 * 2) Remove the vestages of maintaining main_class through 440 * the environment (and remove these comments). 441 * 442 * This method also correctly handles launching existing JavaFX 443 * applications that may or may not have a Main-Class manifest entry. 444 */ 445 mainClass = LoadMainClass(env, mode, what); 446 CHECK_EXCEPTION_NULL_LEAVE(mainClass); 447 /* 448 * In some cases when launching an application that needs a helper, e.g., a 449 * JavaFX application with no main method, the mainClass will not be the 450 * applications own main class but rather a helper class. To keep things 451 * consistent in the UI we need to track and report the application main class. 452 */ 453 appClass = GetApplicationClass(env); 454 NULL_CHECK_RETURN_VALUE(appClass, -1); 455 /* 456 * PostJVMInit uses the class name as the application name for GUI purposes, 457 * for example, on OSX this sets the application name in the menu bar for 458 * both SWT and JavaFX. So we'll pass the actual application class here 459 * instead of mainClass as that may be a launcher or helper class instead 460 * of the application class. 461 */ 462 PostJVMInit(env, appClass, vm); 463 CHECK_EXCEPTION_LEAVE(1); 464 /* 465 * The LoadMainClass not only loads the main class, it will also ensure 466 * that the main method's signature is correct, therefore further checking 467 * is not required. The main method is invoked here so that extraneous java 468 * stacks are not in the application stack trace. 469 */ 470 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", 471 "([Ljava/lang/String;)V"); 472 CHECK_EXCEPTION_NULL_LEAVE(mainID); 473 474 /* Build platform specific argument array */ 475 mainArgs = CreateApplicationArgs(env, argv, argc); 476 CHECK_EXCEPTION_NULL_LEAVE(mainArgs); 477 478 /* Invoke main method. */ 479 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); 480 481 /* 482 * The launcher's exit code (in the absence of calls to 483 * System.exit) will be non-zero if main threw an exception. 484 */ 485 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; 486 LEAVE(); 487 } 488 489 /* 490 * Checks the command line options to find which JVM type was 491 * specified. If no command line option was given for the JVM type, 492 * the default type is used. The environment variable 493 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also 494 * checked as ways of specifying which JVM type to invoke. 495 */ 496 char * 497 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { 498 int i, argi; 499 int argc; 500 char **newArgv; 501 int newArgvIdx = 0; 502 int isVMType; 503 int jvmidx = -1; 504 char *jvmtype = getenv("JDK_ALTERNATE_VM"); 505 506 argc = *pargc; 507 508 /* To make things simpler we always copy the argv array */ 509 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); 510 511 /* The program name is always present */ 512 newArgv[newArgvIdx++] = (*argv)[0]; 513 514 for (argi = 1; argi < argc; argi++) { 515 char *arg = (*argv)[argi]; 516 isVMType = 0; 517 518 if (IsJavaArgs()) { 519 if (arg[0] != '-') { 520 newArgv[newArgvIdx++] = arg; 521 continue; 522 } 523 } else { 524 if (JLI_StrCmp(arg, "-classpath") == 0 || 525 JLI_StrCmp(arg, "-cp") == 0) { 526 newArgv[newArgvIdx++] = arg; 527 argi++; 528 if (argi < argc) { 529 newArgv[newArgvIdx++] = (*argv)[argi]; 530 } 531 continue; 532 } 533 if (arg[0] != '-') break; 534 } 535 536 /* Did the user pass an explicit VM type? */ 537 i = KnownVMIndex(arg); 538 if (i >= 0) { 539 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ 540 isVMType = 1; 541 *pargc = *pargc - 1; 542 } 543 544 /* Did the user specify an "alternate" VM? */ 545 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) { 546 isVMType = 1; 547 jvmtype = arg+((arg[1]=='X')? 10 : 12); 548 jvmidx = -1; 549 } 550 551 if (!isVMType) { 552 newArgv[newArgvIdx++] = arg; 553 } 554 } 555 556 /* 557 * Finish copying the arguments if we aborted the above loop. 558 * NOTE that if we aborted via "break" then we did NOT copy the 559 * last argument above, and in addition argi will be less than 560 * argc. 561 */ 562 while (argi < argc) { 563 newArgv[newArgvIdx++] = (*argv)[argi]; 564 argi++; 565 } 566 567 /* argv is null-terminated */ 568 newArgv[newArgvIdx] = 0; 569 570 /* Copy back argv */ 571 *argv = newArgv; 572 *pargc = newArgvIdx; 573 574 /* use the default VM type if not specified (no alias processing) */ 575 if (jvmtype == NULL) { 576 char* result = knownVMs[0].name+1; 577 /* Use a different VM type if we are on a server class machine? */ 578 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && 579 (ServerClassMachine() == JNI_TRUE)) { 580 result = knownVMs[0].server_class+1; 581 } 582 JLI_TraceLauncher("Default VM: %s\n", result); 583 return result; 584 } 585 586 /* if using an alternate VM, no alias processing */ 587 if (jvmidx < 0) 588 return jvmtype; 589 590 /* Resolve aliases first */ 591 { 592 int loopCount = 0; 593 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { 594 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); 595 596 if (loopCount > knownVMsCount) { 597 if (!speculative) { 598 JLI_ReportErrorMessage(CFG_ERROR1); 599 exit(1); 600 } else { 601 return "ERROR"; 602 /* break; */ 603 } 604 } 605 606 if (nextIdx < 0) { 607 if (!speculative) { 608 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias); 609 exit(1); 610 } else { 611 return "ERROR"; 612 } 613 } 614 jvmidx = nextIdx; 615 jvmtype = knownVMs[jvmidx].name+1; 616 loopCount++; 617 } 618 } 619 620 switch (knownVMs[jvmidx].flag) { 621 case VM_WARN: 622 if (!speculative) { 623 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1); 624 } 625 /* fall through */ 626 case VM_IGNORE: 627 jvmtype = knownVMs[jvmidx=0].name + 1; 628 /* fall through */ 629 case VM_KNOWN: 630 break; 631 case VM_ERROR: 632 if (!speculative) { 633 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype); 634 exit(1); 635 } else { 636 return "ERROR"; 637 } 638 } 639 640 return jvmtype; 641 } 642 643 /* 644 * static void SetJvmEnvironment(int argc, char **argv); 645 * Is called just before the JVM is loaded. We can set env variables 646 * that are consumed by the JVM. This function is non-destructive, 647 * leaving the arg list intact. The first use is for the JVM flag 648 * -XX:NativeMemoryTracking=value. 649 */ 650 static void 651 SetJvmEnvironment(int argc, char **argv) { 652 653 static const char* NMT_Env_Name = "NMT_LEVEL_"; 654 655 int i; 656 for (i = 0; i < argc; i++) { 657 /* 658 * The following case checks for "-XX:NativeMemoryTracking=value". 659 * If value is non null, an environmental variable set to this value 660 * will be created to be used by the JVM. 661 * The argument is passed to the JVM, which will check validity. 662 * The JVM is responsible for removing the env variable. 663 */ 664 char *arg = argv[i]; 665 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { 666 int retval; 667 // get what follows this parameter, include "=" 668 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); 669 if (JLI_StrLen(arg) > pnlen) { 670 char* value = arg + pnlen; 671 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits 672 673 /* 674 * ensures that malloc successful 675 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call 676 * that could store the address. 677 */ 678 char * pbuf = (char*)JLI_MemAlloc(pbuflen); 679 680 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); 681 retval = JLI_PutEnv(pbuf); 682 if (JLI_IsTraceLauncher()) { 683 char* envName; 684 char* envBuf; 685 686 // ensures that malloc successful 687 envName = (char*)JLI_MemAlloc(pbuflen); 688 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); 689 690 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); 691 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); 692 envBuf = getenv(envName); 693 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); 694 free(envName); 695 } 696 697 } 698 699 } 700 701 } 702 } 703 704 /* copied from HotSpot function "atomll()" */ 705 static int 706 parse_size(const char *s, jlong *result) { 707 jlong n = 0; 708 int args_read = sscanf(s, jlong_format_specifier(), &n); 709 if (args_read != 1) { 710 return 0; 711 } 712 while (*s != '\0' && *s >= '0' && *s <= '9') { 713 s++; 714 } 715 // 4705540: illegal if more characters are found after the first non-digit 716 if (JLI_StrLen(s) > 1) { 717 return 0; 718 } 719 switch (*s) { 720 case 'T': case 't': 721 *result = n * GB * KB; 722 return 1; 723 case 'G': case 'g': 724 *result = n * GB; 725 return 1; 726 case 'M': case 'm': 727 *result = n * MB; 728 return 1; 729 case 'K': case 'k': 730 *result = n * KB; 731 return 1; 732 case '\0': 733 *result = n; 734 return 1; 735 default: 736 /* Create JVM with default stack and let VM handle malformed -Xss string*/ 737 return 0; 738 } 739 } 740 741 /* 742 * Adds a new VM option with the given name and value. 743 */ 744 void 745 AddOption(char *str, void *info) 746 { 747 /* 748 * Expand options array if needed to accommodate at least one more 749 * VM option. 750 */ 751 if (numOptions >= maxOptions) { 752 if (options == 0) { 753 maxOptions = 4; 754 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 755 } else { 756 JavaVMOption *tmp; 757 maxOptions *= 2; 758 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); 759 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); 760 JLI_MemFree(options); 761 options = tmp; 762 } 763 } 764 options[numOptions].optionString = str; 765 options[numOptions++].extraInfo = info; 766 767 if (JLI_StrCCmp(str, "-Xss") == 0) { 768 jlong tmp; 769 if (parse_size(str + 4, &tmp)) { 770 threadStackSize = tmp; 771 /* 772 * Make sure the thread stack size is big enough that we won't get a stack 773 * overflow before the JVM startup code can check to make sure the stack 774 * is big enough. 775 */ 776 if (threadStackSize < STACK_SIZE_MINIMUM) { 777 threadStackSize = STACK_SIZE_MINIMUM; 778 } 779 } 780 } 781 782 if (JLI_StrCCmp(str, "-Xmx") == 0) { 783 jlong tmp; 784 if (parse_size(str + 4, &tmp)) { 785 maxHeapSize = tmp; 786 } 787 } 788 789 if (JLI_StrCCmp(str, "-Xms") == 0) { 790 jlong tmp; 791 if (parse_size(str + 4, &tmp)) { 792 initialHeapSize = tmp; 793 } 794 } 795 } 796 797 static void 798 SetClassPath(const char *s) 799 { 800 char *def; 801 const char *orig = s; 802 static const char format[] = "-Djava.class.path=%s"; 803 /* 804 * usually we should not get a null pointer, but there are cases where 805 * we might just get one, in which case we simply ignore it, and let the 806 * caller deal with it 807 */ 808 if (s == NULL) 809 return; 810 s = JLI_WildcardExpandClasspath(s); 811 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s)) 812 // s is became corrupted after expanding wildcards 813 return; 814 def = JLI_MemAlloc(sizeof(format) 815 - 2 /* strlen("%s") */ 816 + JLI_StrLen(s)); 817 sprintf(def, format, s); 818 AddOption(def, NULL); 819 if (s != orig) 820 JLI_MemFree((char *) s); 821 } 822 823 /* 824 * The SelectVersion() routine ensures that an appropriate version of 825 * the JRE is running. The specification for the appropriate version 826 * is obtained from either the manifest of a jar file (preferred) or 827 * from command line options. 828 * The routine also parses splash screen command line options and 829 * passes on their values in private environment variables. 830 */ 831 static void 832 SelectVersion(int argc, char **argv, char **main_class) 833 { 834 char *arg; 835 char *operand; 836 char *version = NULL; 837 char *jre = NULL; 838 int jarflag = 0; 839 int headlessflag = 0; 840 int restrict_search = -1; /* -1 implies not known */ 841 manifest_info info; 842 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; 843 char *splash_file_name = NULL; 844 char *splash_jar_name = NULL; 845 char *env_in; 846 int res; 847 848 /* 849 * If the version has already been selected, set *main_class 850 * with the value passed through the environment (if any) and 851 * simply return. 852 */ 853 854 /* 855 * This environmental variable can be set by mJRE capable JREs 856 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been 857 * stripped by those JREs. This environmental variable allows 1.9+ 858 * JREs to be started by these mJRE capable JREs. 859 * Note that mJRE directives in the jar manifest file would have been 860 * ignored for a JRE started by another JRE... 861 * .. skipped for JRE 1.5 and beyond. 862 * .. not even checked for pre 1.5. 863 */ 864 if ((env_in = getenv(ENV_ENTRY)) != NULL) { 865 if (*env_in != '\0') 866 *main_class = JLI_StringDup(env_in); 867 return; 868 } 869 870 /* 871 * Scan through the arguments for options relevant to multiple JRE 872 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8. 873 * 874 * This capability is no longer available with JRE versions 1.9 and later. 875 * These command line options are reported as errors. 876 */ 877 argc--; 878 argv++; 879 while ((arg = *argv) != 0 && *arg == '-') { 880 if (JLI_StrCCmp(arg, "-version:") == 0) { 881 JLI_ReportErrorMessage(SPC_ERROR1); 882 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) { 883 JLI_ReportErrorMessage(SPC_ERROR2); 884 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) { 885 JLI_ReportErrorMessage(SPC_ERROR2); 886 } else { 887 if (JLI_StrCmp(arg, "-jar") == 0) 888 jarflag = 1; 889 /* deal with "unfortunate" classpath syntax */ 890 if ((JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) && 891 (argc >= 2)) { 892 argc--; 893 argv++; 894 arg = *argv; 895 } 896 897 /* 898 * Checking for headless toolkit option in the some way as AWT does: 899 * "true" means true and any other value means false 900 */ 901 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) { 902 headlessflag = 1; 903 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) { 904 headlessflag = 0; 905 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 906 splash_file_name = arg+8; 907 } 908 } 909 argc--; 910 argv++; 911 } 912 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ 913 operand = NULL; 914 } else { 915 argc--; 916 operand = *argv++; 917 } 918 919 /* 920 * If there is a jar file, read the manifest. If the jarfile can't be 921 * read, the manifest can't be read from the jar file, or the manifest 922 * is corrupt, issue the appropriate error messages and exit. 923 * 924 * Even if there isn't a jar file, construct a manifest_info structure 925 * containing the command line information. It's a convenient way to carry 926 * this data around. 927 */ 928 if (jarflag && operand) { 929 if ((res = JLI_ParseManifest(operand, &info)) != 0) { 930 if (res == -1) 931 JLI_ReportErrorMessage(JAR_ERROR2, operand); 932 else 933 JLI_ReportErrorMessage(JAR_ERROR3, operand); 934 exit(1); 935 } 936 937 /* 938 * Command line splash screen option should have precedence 939 * over the manifest, so the manifest data is used only if 940 * splash_file_name has not been initialized above during command 941 * line parsing 942 */ 943 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { 944 splash_file_name = info.splashscreen_image_file_name; 945 splash_jar_name = operand; 946 } 947 } else { 948 info.manifest_version = NULL; 949 info.main_class = NULL; 950 info.jre_version = NULL; 951 info.jre_restrict_search = 0; 952 } 953 954 /* 955 * Passing on splash screen info in environment variables 956 */ 957 if (splash_file_name && !headlessflag) { 958 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1); 959 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); 960 JLI_StrCat(splash_file_entry, splash_file_name); 961 putenv(splash_file_entry); 962 } 963 if (splash_jar_name && !headlessflag) { 964 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1); 965 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); 966 JLI_StrCat(splash_jar_entry, splash_jar_name); 967 putenv(splash_jar_entry); 968 } 969 970 971 /* 972 * "Valid" returns (other than unrecoverable errors) follow. Set 973 * main_class as a side-effect of this routine. 974 */ 975 if (info.main_class != NULL) 976 *main_class = JLI_StringDup(info.main_class); 977 978 if (info.jre_version == NULL) { 979 JLI_FreeManifest(); 980 return; 981 } 982 983 } 984 985 /* 986 * Parses command line arguments. Returns JNI_FALSE if launcher 987 * should exit without starting vm, returns JNI_TRUE if vm needs 988 * to be started to process given options. *pret (the launcher 989 * process return value) is set to 0 for a normal exit. 990 */ 991 static jboolean 992 ParseArguments(int *pargc, char ***pargv, 993 int *pmode, char **pwhat, 994 int *pret, const char *jrepath) 995 { 996 int argc = *pargc; 997 char **argv = *pargv; 998 int mode = LM_UNKNOWN; 999 char *arg; 1000 1001 *pret = 0; 1002 1003 while ((arg = *argv) != 0 && *arg == '-') { 1004 argv++; --argc; 1005 if (JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) { 1006 ARG_CHECK (argc, ARG_ERROR1, arg); 1007 SetClassPath(*argv); 1008 mode = LM_CLASS; 1009 argv++; --argc; 1010 } else if (JLI_StrCmp(arg, "-jar") == 0) { 1011 ARG_CHECK (argc, ARG_ERROR2, arg); 1012 mode = LM_JAR; 1013 } else if (JLI_StrCmp(arg, "-help") == 0 || 1014 JLI_StrCmp(arg, "-h") == 0 || 1015 JLI_StrCmp(arg, "-?") == 0) { 1016 printUsage = JNI_TRUE; 1017 return JNI_TRUE; 1018 } else if (JLI_StrCmp(arg, "-version") == 0) { 1019 printVersion = JNI_TRUE; 1020 return JNI_TRUE; 1021 } else if (JLI_StrCmp(arg, "-showversion") == 0) { 1022 showVersion = JNI_TRUE; 1023 } else if (JLI_StrCmp(arg, "-X") == 0) { 1024 printXUsage = JNI_TRUE; 1025 return JNI_TRUE; 1026 /* 1027 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT. 1028 * In the latter case, any SUBOPT value not recognized will default to "all" 1029 */ 1030 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 || 1031 JLI_StrCCmp(arg, "-XshowSettings:") == 0) { 1032 showSettings = arg; 1033 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) { 1034 AddOption("-Dsun.java.launcher.diag=true", NULL); 1035 /* 1036 * The following case provide backward compatibility with old-style 1037 * command line options. 1038 */ 1039 } else if (JLI_StrCmp(arg, "-fullversion") == 0) { 1040 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion()); 1041 return JNI_FALSE; 1042 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) { 1043 AddOption("-verbose:gc", NULL); 1044 } else if (JLI_StrCmp(arg, "-t") == 0) { 1045 AddOption("-Xt", NULL); 1046 } else if (JLI_StrCmp(arg, "-tm") == 0) { 1047 AddOption("-Xtm", NULL); 1048 } else if (JLI_StrCmp(arg, "-debug") == 0) { 1049 AddOption("-Xdebug", NULL); 1050 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) { 1051 AddOption("-Xnoclassgc", NULL); 1052 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) { 1053 AddOption("-Xverify:all", NULL); 1054 } else if (JLI_StrCmp(arg, "-verify") == 0) { 1055 AddOption("-Xverify:all", NULL); 1056 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) { 1057 AddOption("-Xverify:remote", NULL); 1058 } else if (JLI_StrCmp(arg, "-noverify") == 0) { 1059 AddOption("-Xverify:none", NULL); 1060 } else if (JLI_StrCCmp(arg, "-prof") == 0) { 1061 char *p = arg + 5; 1062 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 50); 1063 if (*p) { 1064 sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1); 1065 } else { 1066 sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof"); 1067 } 1068 AddOption(tmp, NULL); 1069 } else if (JLI_StrCCmp(arg, "-ss") == 0 || 1070 JLI_StrCCmp(arg, "-oss") == 0 || 1071 JLI_StrCCmp(arg, "-ms") == 0 || 1072 JLI_StrCCmp(arg, "-mx") == 0) { 1073 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6); 1074 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ 1075 AddOption(tmp, NULL); 1076 } else if (JLI_StrCmp(arg, "-checksource") == 0 || 1077 JLI_StrCmp(arg, "-cs") == 0 || 1078 JLI_StrCmp(arg, "-noasyncgc") == 0) { 1079 /* No longer supported */ 1080 JLI_ReportErrorMessage(ARG_WARN, arg); 1081 } else if (JLI_StrCCmp(arg, "-splash:") == 0) { 1082 ; /* Ignore machine independent options already handled */ 1083 } else if (ProcessPlatformOption(arg)) { 1084 ; /* Processing of platform dependent options */ 1085 } else if (RemovableOption(arg)) { 1086 ; /* Do not pass option to vm. */ 1087 } else { 1088 AddOption(arg, NULL); 1089 } 1090 } 1091 1092 if (--argc >= 0) { 1093 *pwhat = *argv++; 1094 } 1095 1096 if (*pwhat == NULL) { 1097 *pret = 1; 1098 } else if (mode == LM_UNKNOWN) { 1099 /* default to LM_CLASS if -jar and -cp option are 1100 * not specified */ 1101 mode = LM_CLASS; 1102 } 1103 1104 if (argc >= 0) { 1105 *pargc = argc; 1106 *pargv = argv; 1107 } 1108 1109 *pmode = mode; 1110 1111 return JNI_TRUE; 1112 } 1113 1114 /* 1115 * Initializes the Java Virtual Machine. Also frees options array when 1116 * finished. 1117 */ 1118 static jboolean 1119 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) 1120 { 1121 JavaVMInitArgs args; 1122 jint r; 1123 1124 memset(&args, 0, sizeof(args)); 1125 args.version = JNI_VERSION_1_2; 1126 args.nOptions = numOptions; 1127 args.options = options; 1128 args.ignoreUnrecognized = JNI_FALSE; 1129 1130 if (JLI_IsTraceLauncher()) { 1131 int i = 0; 1132 printf("JavaVM args:\n "); 1133 printf("version 0x%08lx, ", (long)args.version); 1134 printf("ignoreUnrecognized is %s, ", 1135 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); 1136 printf("nOptions is %ld\n", (long)args.nOptions); 1137 for (i = 0; i < numOptions; i++) 1138 printf(" option[%2d] = '%s'\n", 1139 i, args.options[i].optionString); 1140 } 1141 1142 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); 1143 JLI_MemFree(options); 1144 return r == JNI_OK; 1145 } 1146 1147 static jclass helperClass = NULL; 1148 1149 jclass 1150 GetLauncherHelperClass(JNIEnv *env) 1151 { 1152 if (helperClass == NULL) { 1153 NULL_CHECK0(helperClass = FindBootStrapClass(env, 1154 "sun/launcher/LauncherHelper")); 1155 } 1156 return helperClass; 1157 } 1158 1159 static jmethodID makePlatformStringMID = NULL; 1160 /* 1161 * Returns a new Java string object for the specified platform string. 1162 */ 1163 static jstring 1164 NewPlatformString(JNIEnv *env, char *s) 1165 { 1166 int len = (int)JLI_StrLen(s); 1167 jbyteArray ary; 1168 jclass cls = GetLauncherHelperClass(env); 1169 NULL_CHECK0(cls); 1170 if (s == NULL) 1171 return 0; 1172 1173 ary = (*env)->NewByteArray(env, len); 1174 if (ary != 0) { 1175 jstring str = 0; 1176 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); 1177 if (!(*env)->ExceptionOccurred(env)) { 1178 if (makePlatformStringMID == NULL) { 1179 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env, 1180 cls, "makePlatformString", "(Z[B)Ljava/lang/String;")); 1181 } 1182 str = (*env)->CallStaticObjectMethod(env, cls, 1183 makePlatformStringMID, USE_STDERR, ary); 1184 (*env)->DeleteLocalRef(env, ary); 1185 return str; 1186 } 1187 } 1188 return 0; 1189 } 1190 1191 /* 1192 * Returns a new array of Java string objects for the specified 1193 * array of platform strings. 1194 */ 1195 jobjectArray 1196 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) 1197 { 1198 jarray cls; 1199 jarray ary; 1200 int i; 1201 1202 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String")); 1203 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); 1204 for (i = 0; i < strc; i++) { 1205 jstring str = NewPlatformString(env, *strv++); 1206 NULL_CHECK0(str); 1207 (*env)->SetObjectArrayElement(env, ary, i, str); 1208 (*env)->DeleteLocalRef(env, str); 1209 } 1210 return ary; 1211 } 1212 1213 /* 1214 * Loads a class and verifies that the main class is present and it is ok to 1215 * call it for more details refer to the java implementation. 1216 */ 1217 static jclass 1218 LoadMainClass(JNIEnv *env, int mode, char *name) 1219 { 1220 jmethodID mid; 1221 jstring str; 1222 jobject result; 1223 jlong start, end; 1224 jclass cls = GetLauncherHelperClass(env); 1225 NULL_CHECK0(cls); 1226 if (JLI_IsTraceLauncher()) { 1227 start = CounterGet(); 1228 } 1229 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1230 "checkAndLoadMain", 1231 "(ZILjava/lang/String;)Ljava/lang/Class;")); 1232 1233 NULL_CHECK0(str = NewPlatformString(env, name)); 1234 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid, 1235 USE_STDERR, mode, str)); 1236 1237 if (JLI_IsTraceLauncher()) { 1238 end = CounterGet(); 1239 printf("%ld micro seconds to load main class\n", 1240 (long)(jint)Counter2Micros(end-start)); 1241 printf("----%s----\n", JLDEBUG_ENV_ENTRY); 1242 } 1243 1244 return (jclass)result; 1245 } 1246 1247 static jclass 1248 GetApplicationClass(JNIEnv *env) 1249 { 1250 jmethodID mid; 1251 jclass cls = GetLauncherHelperClass(env); 1252 NULL_CHECK0(cls); 1253 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1254 "getApplicationClass", 1255 "()Ljava/lang/Class;")); 1256 1257 return (*env)->CallStaticObjectMethod(env, cls, mid); 1258 } 1259 1260 /* 1261 * For tools, convert command line args thus: 1262 * javac -cp foo:foo/"*" -J-ms32m ... 1263 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... 1264 * 1265 * Takes 4 parameters, and returns the populated arguments 1266 */ 1267 static void 1268 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv) 1269 { 1270 int argc = *pargc; 1271 char **argv = *pargv; 1272 int nargc = argc + jargc; 1273 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); 1274 int i; 1275 1276 *pargc = nargc; 1277 *pargv = nargv; 1278 1279 /* Copy the VM arguments (i.e. prefixed with -J) */ 1280 for (i = 0; i < jargc; i++) { 1281 const char *arg = jargv[i]; 1282 if (arg[0] == '-' && arg[1] == 'J') { 1283 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2); 1284 } 1285 } 1286 1287 for (i = 0; i < argc; i++) { 1288 char *arg = argv[i]; 1289 if (arg[0] == '-' && arg[1] == 'J') { 1290 if (arg[2] == '\0') { 1291 JLI_ReportErrorMessage(ARG_ERROR3); 1292 exit(1); 1293 } 1294 *nargv++ = arg + 2; 1295 } 1296 } 1297 1298 /* Copy the rest of the arguments */ 1299 for (i = 0; i < jargc ; i++) { 1300 const char *arg = jargv[i]; 1301 if (arg[0] != '-' || arg[1] != 'J') { 1302 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg); 1303 } 1304 } 1305 for (i = 0; i < argc; i++) { 1306 char *arg = argv[i]; 1307 if (arg[0] == '-') { 1308 if (arg[1] == 'J') 1309 continue; 1310 if (IsWildCardEnabled() && arg[1] == 'c' 1311 && (JLI_StrCmp(arg, "-cp") == 0 || 1312 JLI_StrCmp(arg, "-classpath") == 0) 1313 && i < argc - 1) { 1314 *nargv++ = arg; 1315 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); 1316 i++; 1317 continue; 1318 } 1319 } 1320 *nargv++ = arg; 1321 } 1322 *nargv = 0; 1323 } 1324 1325 /* 1326 * For our tools, we try to add 3 VM options: 1327 * -Denv.class.path=<envcp> 1328 * -Dapplication.home=<apphome> 1329 * -Djava.class.path=<appcp> 1330 * <envcp> is the user's setting of CLASSPATH -- for instance the user 1331 * tells javac where to find binary classes through this environment 1332 * variable. Notice that users will be able to compile against our 1333 * tools classes (sun.tools.javac.Main) only if they explicitly add 1334 * tools.jar to CLASSPATH. 1335 * <apphome> is the directory where the application is installed. 1336 * <appcp> is the classpath to where our apps' classfiles are. 1337 */ 1338 static jboolean 1339 AddApplicationOptions(int cpathc, const char **cpathv) 1340 { 1341 char *envcp, *appcp, *apphome; 1342 char home[MAXPATHLEN]; /* application home */ 1343 char separator[] = { PATH_SEPARATOR, '\0' }; 1344 int size, i; 1345 1346 { 1347 const char *s = getenv("CLASSPATH"); 1348 if (s) { 1349 s = (char *) JLI_WildcardExpandClasspath(s); 1350 /* 40 for -Denv.class.path= */ 1351 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow 1352 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40); 1353 sprintf(envcp, "-Denv.class.path=%s", s); 1354 AddOption(envcp, NULL); 1355 } 1356 } 1357 } 1358 1359 if (!GetApplicationHome(home, sizeof(home))) { 1360 JLI_ReportErrorMessage(CFG_ERROR5); 1361 return JNI_FALSE; 1362 } 1363 1364 /* 40 for '-Dapplication.home=' */ 1365 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40); 1366 sprintf(apphome, "-Dapplication.home=%s", home); 1367 AddOption(apphome, NULL); 1368 1369 /* How big is the application's classpath? */ 1370 size = 40; /* 40: "-Djava.class.path=" */ 1371 for (i = 0; i < cpathc; i++) { 1372 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */ 1373 } 1374 appcp = (char *)JLI_MemAlloc(size + 1); 1375 JLI_StrCpy(appcp, "-Djava.class.path="); 1376 for (i = 0; i < cpathc; i++) { 1377 JLI_StrCat(appcp, home); /* c:\program files\myapp */ 1378 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */ 1379 JLI_StrCat(appcp, separator); /* ; */ 1380 } 1381 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */ 1382 AddOption(appcp, NULL); 1383 return JNI_TRUE; 1384 } 1385 1386 /* 1387 * inject the -Dsun.java.command pseudo property into the args structure 1388 * this pseudo property is used in the HotSpot VM to expose the 1389 * Java class name and arguments to the main method to the VM. The 1390 * HotSpot VM uses this pseudo property to store the Java class name 1391 * (or jar file name) and the arguments to the class's main method 1392 * to the instrumentation memory region. The sun.java.command pseudo 1393 * property is not exported by HotSpot to the Java layer. 1394 */ 1395 void 1396 SetJavaCommandLineProp(char *what, int argc, char **argv) 1397 { 1398 1399 int i = 0; 1400 size_t len = 0; 1401 char* javaCommand = NULL; 1402 char* dashDstr = "-Dsun.java.command="; 1403 1404 if (what == NULL) { 1405 /* unexpected, one of these should be set. just return without 1406 * setting the property 1407 */ 1408 return; 1409 } 1410 1411 /* determine the amount of memory to allocate assuming 1412 * the individual components will be space separated 1413 */ 1414 len = JLI_StrLen(what); 1415 for (i = 0; i < argc; i++) { 1416 len += JLI_StrLen(argv[i]) + 1; 1417 } 1418 1419 /* allocate the memory */ 1420 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1); 1421 1422 /* build the -D string */ 1423 *javaCommand = '\0'; 1424 JLI_StrCat(javaCommand, dashDstr); 1425 JLI_StrCat(javaCommand, what); 1426 1427 for (i = 0; i < argc; i++) { 1428 /* the components of the string are space separated. In 1429 * the case of embedded white space, the relationship of 1430 * the white space separated components to their true 1431 * positional arguments will be ambiguous. This issue may 1432 * be addressed in a future release. 1433 */ 1434 JLI_StrCat(javaCommand, " "); 1435 JLI_StrCat(javaCommand, argv[i]); 1436 } 1437 1438 AddOption(javaCommand, NULL); 1439 } 1440 1441 /* 1442 * JVM would like to know if it's created by a standard Sun launcher, or by 1443 * user native application, the following property indicates the former. 1444 */ 1445 void 1446 SetJavaLauncherProp() { 1447 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL); 1448 } 1449 1450 /* 1451 * Prints the version information from the java.version and other properties. 1452 */ 1453 static void 1454 PrintJavaVersion(JNIEnv *env, jboolean extraLF) 1455 { 1456 jclass ver; 1457 jmethodID print; 1458 1459 NULL_CHECK(ver = FindBootStrapClass(env, "sun/misc/Version")); 1460 NULL_CHECK(print = (*env)->GetStaticMethodID(env, 1461 ver, 1462 (extraLF == JNI_TRUE) ? "println" : "print", 1463 "()V" 1464 ) 1465 ); 1466 1467 (*env)->CallStaticVoidMethod(env, ver, print); 1468 } 1469 1470 /* 1471 * Prints all the Java settings, see the java implementation for more details. 1472 */ 1473 static void 1474 ShowSettings(JNIEnv *env, char *optString) 1475 { 1476 jmethodID showSettingsID; 1477 jstring joptString; 1478 jclass cls = GetLauncherHelperClass(env); 1479 NULL_CHECK(cls); 1480 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls, 1481 "showSettings", "(ZLjava/lang/String;JJJZ)V")); 1482 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString)); 1483 (*env)->CallStaticVoidMethod(env, cls, showSettingsID, 1484 USE_STDERR, 1485 joptString, 1486 (jlong)initialHeapSize, 1487 (jlong)maxHeapSize, 1488 (jlong)threadStackSize, 1489 ServerClassMachine()); 1490 } 1491 1492 /* 1493 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java 1494 */ 1495 static void 1496 PrintUsage(JNIEnv* env, jboolean doXUsage) 1497 { 1498 jmethodID initHelp, vmSelect, vmSynonym, vmErgo, printHelp, printXUsageMessage; 1499 jstring jprogname, vm1, vm2; 1500 int i; 1501 jclass cls = GetLauncherHelperClass(env); 1502 NULL_CHECK(cls); 1503 if (doXUsage) { 1504 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls, 1505 "printXUsageMessage", "(Z)V")); 1506 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, USE_STDERR); 1507 } else { 1508 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls, 1509 "initHelpMessage", "(Ljava/lang/String;)V")); 1510 1511 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage", 1512 "(Ljava/lang/String;Ljava/lang/String;)V")); 1513 1514 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls, 1515 "appendVmSynonymMessage", 1516 "(Ljava/lang/String;Ljava/lang/String;)V")); 1517 NULL_CHECK(vmErgo = (*env)->GetStaticMethodID(env, cls, 1518 "appendVmErgoMessage", "(ZLjava/lang/String;)V")); 1519 1520 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls, 1521 "printHelpMessage", "(Z)V")); 1522 1523 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name)); 1524 1525 /* Initialize the usage message with the usual preamble */ 1526 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname); 1527 CHECK_EXCEPTION_RETURN(); 1528 1529 1530 /* Assemble the other variant part of the usage */ 1531 if ((knownVMs[0].flag == VM_KNOWN) || 1532 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { 1533 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[0].name)); 1534 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[0].name+1)); 1535 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1536 CHECK_EXCEPTION_RETURN(); 1537 } 1538 for (i=1; i<knownVMsCount; i++) { 1539 if (knownVMs[i].flag == VM_KNOWN) { 1540 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1541 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1)); 1542 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2); 1543 CHECK_EXCEPTION_RETURN(); 1544 } 1545 } 1546 for (i=1; i<knownVMsCount; i++) { 1547 if (knownVMs[i].flag == VM_ALIASED_TO) { 1548 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name)); 1549 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1)); 1550 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2); 1551 CHECK_EXCEPTION_RETURN(); 1552 } 1553 } 1554 1555 /* The first known VM is the default */ 1556 { 1557 jboolean isServerClassMachine = ServerClassMachine(); 1558 1559 const char* defaultVM = knownVMs[0].name+1; 1560 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && isServerClassMachine) { 1561 defaultVM = knownVMs[0].server_class+1; 1562 } 1563 1564 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, defaultVM)); 1565 (*env)->CallStaticVoidMethod(env, cls, vmErgo, isServerClassMachine, vm1); 1566 CHECK_EXCEPTION_RETURN(); 1567 } 1568 1569 /* Complete the usage message and print to stderr*/ 1570 (*env)->CallStaticVoidMethod(env, cls, printHelp, USE_STDERR); 1571 } 1572 return; 1573 } 1574 1575 /* 1576 * Read the jvm.cfg file and fill the knownJVMs[] array. 1577 * 1578 * The functionality of the jvm.cfg file is subject to change without 1579 * notice and the mechanism will be removed in the future. 1580 * 1581 * The lexical structure of the jvm.cfg file is as follows: 1582 * 1583 * jvmcfg := { vmLine } 1584 * vmLine := knownLine 1585 * | aliasLine 1586 * | warnLine 1587 * | ignoreLine 1588 * | errorLine 1589 * | predicateLine 1590 * | commentLine 1591 * knownLine := flag "KNOWN" EOL 1592 * warnLine := flag "WARN" EOL 1593 * ignoreLine := flag "IGNORE" EOL 1594 * errorLine := flag "ERROR" EOL 1595 * aliasLine := flag "ALIASED_TO" flag EOL 1596 * predicateLine := flag "IF_SERVER_CLASS" flag EOL 1597 * commentLine := "#" text EOL 1598 * flag := "-" identifier 1599 * 1600 * The semantics are that when someone specifies a flag on the command line: 1601 * - if the flag appears on a knownLine, then the identifier is used as 1602 * the name of the directory holding the JVM library (the name of the JVM). 1603 * - if the flag appears as the first flag on an aliasLine, the identifier 1604 * of the second flag is used as the name of the JVM. 1605 * - if the flag appears on a warnLine, the identifier is used as the 1606 * name of the JVM, but a warning is generated. 1607 * - if the flag appears on an ignoreLine, the identifier is recognized as the 1608 * name of a JVM, but the identifier is ignored and the default vm used 1609 * - if the flag appears on an errorLine, an error is generated. 1610 * - if the flag appears as the first flag on a predicateLine, and 1611 * the machine on which you are running passes the predicate indicated, 1612 * then the identifier of the second flag is used as the name of the JVM, 1613 * otherwise the identifier of the first flag is used as the name of the JVM. 1614 * If no flag is given on the command line, the first vmLine of the jvm.cfg 1615 * file determines the name of the JVM. 1616 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, 1617 * since they only make sense if someone hasn't specified the name of the 1618 * JVM on the command line. 1619 * 1620 * The intent of the jvm.cfg file is to allow several JVM libraries to 1621 * be installed in different subdirectories of a single JRE installation, 1622 * for space-savings and convenience in testing. 1623 * The intent is explicitly not to provide a full aliasing or predicate 1624 * mechanism. 1625 */ 1626 jint 1627 ReadKnownVMs(const char *jvmCfgName, jboolean speculative) 1628 { 1629 FILE *jvmCfg; 1630 char line[MAXPATHLEN+20]; 1631 int cnt = 0; 1632 int lineno = 0; 1633 jlong start, end; 1634 int vmType; 1635 char *tmpPtr; 1636 char *altVMName = NULL; 1637 char *serverClassVMName = NULL; 1638 static char *whiteSpace = " \t"; 1639 if (JLI_IsTraceLauncher()) { 1640 start = CounterGet(); 1641 } 1642 1643 jvmCfg = fopen(jvmCfgName, "r"); 1644 if (jvmCfg == NULL) { 1645 if (!speculative) { 1646 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName); 1647 exit(1); 1648 } else { 1649 return -1; 1650 } 1651 } 1652 while (fgets(line, sizeof(line), jvmCfg) != NULL) { 1653 vmType = VM_UNKNOWN; 1654 lineno++; 1655 if (line[0] == '#') 1656 continue; 1657 if (line[0] != '-') { 1658 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName); 1659 } 1660 if (cnt >= knownVMsLimit) { 1661 GrowKnownVMs(cnt); 1662 } 1663 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */ 1664 tmpPtr = line + JLI_StrCSpn(line, whiteSpace); 1665 if (*tmpPtr == 0) { 1666 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1667 } else { 1668 /* Null-terminate this string for JLI_StringDup below */ 1669 *tmpPtr++ = 0; 1670 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1671 if (*tmpPtr == 0) { 1672 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1673 } else { 1674 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) { 1675 vmType = VM_KNOWN; 1676 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) { 1677 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1678 if (*tmpPtr != 0) { 1679 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1680 } 1681 if (*tmpPtr == 0) { 1682 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName); 1683 } else { 1684 /* Null terminate altVMName */ 1685 altVMName = tmpPtr; 1686 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1687 *tmpPtr = 0; 1688 vmType = VM_ALIASED_TO; 1689 } 1690 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) { 1691 vmType = VM_WARN; 1692 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) { 1693 vmType = VM_IGNORE; 1694 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) { 1695 vmType = VM_ERROR; 1696 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) { 1697 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1698 if (*tmpPtr != 0) { 1699 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace); 1700 } 1701 if (*tmpPtr == 0) { 1702 JLI_ReportErrorMessage(CFG_WARN4, lineno, jvmCfgName); 1703 } else { 1704 /* Null terminate server class VM name */ 1705 serverClassVMName = tmpPtr; 1706 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace); 1707 *tmpPtr = 0; 1708 vmType = VM_IF_SERVER_CLASS; 1709 } 1710 } else { 1711 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]); 1712 vmType = VM_KNOWN; 1713 } 1714 } 1715 } 1716 1717 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line); 1718 if (vmType != VM_UNKNOWN) { 1719 knownVMs[cnt].name = JLI_StringDup(line); 1720 knownVMs[cnt].flag = vmType; 1721 switch (vmType) { 1722 default: 1723 break; 1724 case VM_ALIASED_TO: 1725 knownVMs[cnt].alias = JLI_StringDup(altVMName); 1726 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n", 1727 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); 1728 break; 1729 case VM_IF_SERVER_CLASS: 1730 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName); 1731 JLI_TraceLauncher(" name: %s vmType: %s server_class: %s\n", 1732 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); 1733 break; 1734 } 1735 cnt++; 1736 } 1737 } 1738 fclose(jvmCfg); 1739 knownVMsCount = cnt; 1740 1741 if (JLI_IsTraceLauncher()) { 1742 end = CounterGet(); 1743 printf("%ld micro seconds to parse jvm.cfg\n", 1744 (long)(jint)Counter2Micros(end-start)); 1745 } 1746 1747 return cnt; 1748 } 1749 1750 1751 static void 1752 GrowKnownVMs(int minimum) 1753 { 1754 struct vmdesc* newKnownVMs; 1755 int newMax; 1756 1757 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); 1758 if (newMax <= minimum) { 1759 newMax = minimum; 1760 } 1761 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); 1762 if (knownVMs != NULL) { 1763 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); 1764 } 1765 JLI_MemFree(knownVMs); 1766 knownVMs = newKnownVMs; 1767 knownVMsLimit = newMax; 1768 } 1769 1770 1771 /* Returns index of VM or -1 if not found */ 1772 static int 1773 KnownVMIndex(const char* name) 1774 { 1775 int i; 1776 if (JLI_StrCCmp(name, "-J") == 0) name += 2; 1777 for (i = 0; i < knownVMsCount; i++) { 1778 if (!JLI_StrCmp(name, knownVMs[i].name)) { 1779 return i; 1780 } 1781 } 1782 return -1; 1783 } 1784 1785 static void 1786 FreeKnownVMs() 1787 { 1788 int i; 1789 for (i = 0; i < knownVMsCount; i++) { 1790 JLI_MemFree(knownVMs[i].name); 1791 knownVMs[i].name = NULL; 1792 } 1793 JLI_MemFree(knownVMs); 1794 } 1795 1796 /* 1797 * Displays the splash screen according to the jar file name 1798 * and image file names stored in environment variables 1799 */ 1800 void 1801 ShowSplashScreen() 1802 { 1803 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); 1804 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); 1805 int data_size; 1806 void *image_data = NULL; 1807 float scale_factor = 1; 1808 char *scaled_splash_name = NULL; 1809 1810 if (file_name == NULL){ 1811 return; 1812 } 1813 1814 scaled_splash_name = DoSplashGetScaledImageName( 1815 jar_name, file_name, &scale_factor); 1816 if (jar_name) { 1817 1818 if (scaled_splash_name) { 1819 image_data = JLI_JarUnpackFile( 1820 jar_name, scaled_splash_name, &data_size); 1821 } 1822 1823 if (!image_data) { 1824 scale_factor = 1; 1825 image_data = JLI_JarUnpackFile( 1826 jar_name, file_name, &data_size); 1827 } 1828 if (image_data) { 1829 DoSplashInit(); 1830 DoSplashSetScaleFactor(scale_factor); 1831 DoSplashLoadMemory(image_data, data_size); 1832 JLI_MemFree(image_data); 1833 } 1834 } else { 1835 DoSplashInit(); 1836 if (scaled_splash_name) { 1837 DoSplashSetScaleFactor(scale_factor); 1838 DoSplashLoadFile(scaled_splash_name); 1839 } else { 1840 DoSplashLoadFile(file_name); 1841 } 1842 } 1843 1844 if (scaled_splash_name) { 1845 JLI_MemFree(scaled_splash_name); 1846 } 1847 1848 DoSplashSetFileJarName(file_name, jar_name); 1849 1850 /* 1851 * Done with all command line processing and potential re-execs so 1852 * clean up the environment. 1853 */ 1854 (void)UnsetEnv(ENV_ENTRY); 1855 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); 1856 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); 1857 1858 JLI_MemFree(splash_jar_entry); 1859 JLI_MemFree(splash_file_entry); 1860 1861 } 1862 1863 const char* 1864 GetDotVersion() 1865 { 1866 return _dVersion; 1867 } 1868 1869 const char* 1870 GetFullVersion() 1871 { 1872 return _fVersion; 1873 } 1874 1875 const char* 1876 GetProgramName() 1877 { 1878 return _program_name; 1879 } 1880 1881 const char* 1882 GetLauncherName() 1883 { 1884 return _launcher_name; 1885 } 1886 1887 jint 1888 GetErgoPolicy() 1889 { 1890 return _ergo_policy; 1891 } 1892 1893 jboolean 1894 IsJavaArgs() 1895 { 1896 return _is_java_args; 1897 } 1898 1899 static jboolean 1900 IsWildCardEnabled() 1901 { 1902 return _wc_enabled; 1903 } 1904 1905 int 1906 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize, 1907 int argc, char **argv, 1908 int mode, char *what, int ret) 1909 { 1910 1911 /* 1912 * If user doesn't specify stack size, check if VM has a preference. 1913 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will 1914 * return its default stack size through the init args structure. 1915 */ 1916 if (threadStackSize == 0) { 1917 struct JDK1_1InitArgs args1_1; 1918 memset((void*)&args1_1, 0, sizeof(args1_1)); 1919 args1_1.version = JNI_VERSION_1_1; 1920 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ 1921 if (args1_1.javaStackSize > 0) { 1922 threadStackSize = args1_1.javaStackSize; 1923 } 1924 } 1925 1926 { /* Create a new thread to create JVM and invoke main method */ 1927 JavaMainArgs args; 1928 int rslt; 1929 1930 args.argc = argc; 1931 args.argv = argv; 1932 args.mode = mode; 1933 args.what = what; 1934 args.ifn = *ifn; 1935 1936 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args); 1937 /* If the caller has deemed there is an error we 1938 * simply return that, otherwise we return the value of 1939 * the callee 1940 */ 1941 return (ret != 0) ? ret : rslt; 1942 } 1943 } 1944 1945 static void 1946 DumpState() 1947 { 1948 if (!JLI_IsTraceLauncher()) return ; 1949 printf("Launcher state:\n"); 1950 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off"); 1951 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off"); 1952 printf("\tprogram name:%s\n", GetProgramName()); 1953 printf("\tlauncher name:%s\n", GetLauncherName()); 1954 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off"); 1955 printf("\tfullversion:%s\n", GetFullVersion()); 1956 printf("\tdotversion:%s\n", GetDotVersion()); 1957 printf("\tergo_policy:"); 1958 switch(GetErgoPolicy()) { 1959 case NEVER_SERVER_CLASS: 1960 printf("NEVER_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 1961 break; 1962 case ALWAYS_SERVER_CLASS: 1963 printf("ALWAYS_ACT_AS_A_SERVER_CLASS_MACHINE\n"); 1964 break; 1965 default: 1966 printf("DEFAULT_ERGONOMICS_POLICY\n"); 1967 } 1968 } 1969 1970 /* 1971 * Return JNI_TRUE for an option string that has no effect but should 1972 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On 1973 * Solaris SPARC, this screening needs to be done if: 1974 * -d32 or -d64 is passed to a binary with an unmatched data model 1975 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the 1976 * exec to the proper binary). In the case of when the data model and the 1977 * requested version is matched, an exec would not occur, and these options 1978 * were erroneously passed to the vm. 1979 */ 1980 jboolean 1981 RemovableOption(char * option) 1982 { 1983 /* 1984 * Unconditionally remove both -d32 and -d64 options since only 1985 * the last such options has an effect; e.g. 1986 * java -d32 -d64 -d32 -version 1987 * is equivalent to 1988 * java -d32 -version 1989 */ 1990 1991 if( (JLI_StrCCmp(option, "-d32") == 0 ) || 1992 (JLI_StrCCmp(option, "-d64") == 0 ) ) 1993 return JNI_TRUE; 1994 else 1995 return JNI_FALSE; 1996 } 1997 1998 /* 1999 * A utility procedure to always print to stderr 2000 */ 2001 void 2002 JLI_ReportMessage(const char* fmt, ...) 2003 { 2004 va_list vl; 2005 va_start(vl, fmt); 2006 vfprintf(stderr, fmt, vl); 2007 fprintf(stderr, "\n"); 2008 va_end(vl); 2009 }