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 int i;
655 for (i = 0; i < argc; i++) {
656 char *arg = argv[i];
657 /*
658 * Since this must be a VM flag we stop processing once we see
659 * an argument the launcher would not have processed beyond (such
660 * as -version or -h), or an argument that indicates the following
661 * arguments are for the application (i.e. the main class name, or
662 * the -jar argument).
663 */
664 if (i > 0) {
665 char *prev = argv[i - 1];
666 // skip non-dash arg preceded by class path specifiers
667 if (*arg != '-' &&
668 ((JLI_StrCmp(prev, "-cp") == 0
669 || JLI_StrCmp(prev, "-classpath") == 0))) {
670 continue;
671 }
672
673 if (*arg != '-'
674 || JLI_StrCmp(arg, "-version") == 0
675 || JLI_StrCmp(arg, "-fullversion") == 0
676 || JLI_StrCmp(arg, "-help") == 0
677 || JLI_StrCmp(arg, "-?") == 0
678 || JLI_StrCmp(arg, "-jar") == 0
679 || JLI_StrCmp(arg, "-X") == 0) {
680 return;
681 }
682 }
683 /*
684 * The following case checks for "-XX:NativeMemoryTracking=value".
685 * If value is non null, an environmental variable set to this value
686 * will be created to be used by the JVM.
687 * The argument is passed to the JVM, which will check validity.
688 * The JVM is responsible for removing the env variable.
689 */
690 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) {
691 int retval;
692 // get what follows this parameter, include "="
693 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking=");
694 if (JLI_StrLen(arg) > pnlen) {
695 char* value = arg + pnlen;
696 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits
697
698 /*
699 * ensures that malloc successful
700 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call
701 * that could store the address.
702 */
703 char * pbuf = (char*)JLI_MemAlloc(pbuflen);
704
705 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value);
706 retval = JLI_PutEnv(pbuf);
707 if (JLI_IsTraceLauncher()) {
708 char* envName;
709 char* envBuf;
710
711 // ensures that malloc successful
712 envName = (char*)JLI_MemAlloc(pbuflen);
713 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid());
714
715 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName);
716 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf);
717 envBuf = getenv(envName);
718 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf);
719 free(envName);
720 }
721
722 }
723
724 }
725
726 }
727 }
728
729 /* copied from HotSpot function "atomll()" */
730 static int
731 parse_size(const char *s, jlong *result) {
732 jlong n = 0;
733 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n);
734 if (args_read != 1) {
735 return 0;
736 }
737 while (*s != '\0' && *s >= '0' && *s <= '9') {
738 s++;
739 }
740 // 4705540: illegal if more characters are found after the first non-digit
741 if (JLI_StrLen(s) > 1) {
742 return 0;
743 }
744 switch (*s) {
745 case 'T': case 't':
746 *result = n * GB * KB;
747 return 1;
748 case 'G': case 'g':
749 *result = n * GB;
750 return 1;
751 case 'M': case 'm':
752 *result = n * MB;
753 return 1;
754 case 'K': case 'k':
755 *result = n * KB;
756 return 1;
757 case '\0':
758 *result = n;
759 return 1;
760 default:
761 /* Create JVM with default stack and let VM handle malformed -Xss string*/
762 return 0;
763 }
764 }
765
766 /*
767 * Adds a new VM option with the given name and value.
768 */
769 void
770 AddOption(char *str, void *info)
771 {
772 /*
773 * Expand options array if needed to accommodate at least one more
774 * VM option.
775 */
776 if (numOptions >= maxOptions) {
777 if (options == 0) {
778 maxOptions = 4;
779 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
780 } else {
781 JavaVMOption *tmp;
782 maxOptions *= 2;
783 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
784 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
785 JLI_MemFree(options);
786 options = tmp;
787 }
788 }
789 options[numOptions].optionString = str;
790 options[numOptions++].extraInfo = info;
791
792 if (JLI_StrCCmp(str, "-Xss") == 0) {
793 jlong tmp;
794 if (parse_size(str + 4, &tmp)) {
795 threadStackSize = tmp;
796 /*
797 * Make sure the thread stack size is big enough that we won't get a stack
798 * overflow before the JVM startup code can check to make sure the stack
799 * is big enough.
800 */
801 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) {
802 threadStackSize = STACK_SIZE_MINIMUM;
803 }
804 }
805 }
806
807 if (JLI_StrCCmp(str, "-Xmx") == 0) {
808 jlong tmp;
809 if (parse_size(str + 4, &tmp)) {
810 maxHeapSize = tmp;
811 }
812 }
813
814 if (JLI_StrCCmp(str, "-Xms") == 0) {
815 jlong tmp;
816 if (parse_size(str + 4, &tmp)) {
817 initialHeapSize = tmp;
818 }
819 }
820 }
821
822 static void
823 SetClassPath(const char *s)
824 {
825 char *def;
826 const char *orig = s;
827 static const char format[] = "-Djava.class.path=%s";
828 /*
829 * usually we should not get a null pointer, but there are cases where
830 * we might just get one, in which case we simply ignore it, and let the
831 * caller deal with it
832 */
833 if (s == NULL)
834 return;
835 s = JLI_WildcardExpandClasspath(s);
836 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s))
837 // s is became corrupted after expanding wildcards
838 return;
839 def = JLI_MemAlloc(sizeof(format)
840 - 2 /* strlen("%s") */
841 + JLI_StrLen(s));
842 sprintf(def, format, s);
843 AddOption(def, NULL);
844 if (s != orig)
845 JLI_MemFree((char *) s);
846 }
847
848 /*
849 * The SelectVersion() routine ensures that an appropriate version of
850 * the JRE is running. The specification for the appropriate version
851 * is obtained from either the manifest of a jar file (preferred) or
852 * from command line options.
853 * The routine also parses splash screen command line options and
854 * passes on their values in private environment variables.
855 */
856 static void
857 SelectVersion(int argc, char **argv, char **main_class)
858 {
859 char *arg;
860 char *operand;
861 char *version = NULL;
862 char *jre = NULL;
863 int jarflag = 0;
864 int headlessflag = 0;
865 int restrict_search = -1; /* -1 implies not known */
866 manifest_info info;
867 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "=";
868 char *splash_file_name = NULL;
869 char *splash_jar_name = NULL;
870 char *env_in;
871 int res;
872
873 /*
874 * If the version has already been selected, set *main_class
875 * with the value passed through the environment (if any) and
876 * simply return.
877 */
878
879 /*
880 * This environmental variable can be set by mJRE capable JREs
881 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been
882 * stripped by those JREs. This environmental variable allows 1.9+
883 * JREs to be started by these mJRE capable JREs.
884 * Note that mJRE directives in the jar manifest file would have been
885 * ignored for a JRE started by another JRE...
886 * .. skipped for JRE 1.5 and beyond.
887 * .. not even checked for pre 1.5.
888 */
889 if ((env_in = getenv(ENV_ENTRY)) != NULL) {
890 if (*env_in != '\0')
891 *main_class = JLI_StringDup(env_in);
892 return;
893 }
894
895 /*
896 * Scan through the arguments for options relevant to multiple JRE
897 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8.
898 *
899 * This capability is no longer available with JRE versions 1.9 and later.
900 * These command line options are reported as errors.
901 */
902 argc--;
903 argv++;
904 while ((arg = *argv) != 0 && *arg == '-') {
905 if (JLI_StrCCmp(arg, "-version:") == 0) {
906 JLI_ReportErrorMessage(SPC_ERROR1);
907 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) {
908 JLI_ReportErrorMessage(SPC_ERROR2);
909 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) {
910 JLI_ReportErrorMessage(SPC_ERROR2);
911 } else {
912 if (JLI_StrCmp(arg, "-jar") == 0)
913 jarflag = 1;
914 /* deal with "unfortunate" classpath syntax */
915 if ((JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) &&
916 (argc >= 2)) {
917 argc--;
918 argv++;
919 arg = *argv;
920 }
921
922 /*
923 * Checking for headless toolkit option in the some way as AWT does:
924 * "true" means true and any other value means false
925 */
926 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) {
927 headlessflag = 1;
928 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) {
929 headlessflag = 0;
930 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
931 splash_file_name = arg+8;
932 }
933 }
934 argc--;
935 argv++;
936 }
937 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */
938 operand = NULL;
939 } else {
940 argc--;
941 operand = *argv++;
942 }
943
944 /*
945 * If there is a jar file, read the manifest. If the jarfile can't be
946 * read, the manifest can't be read from the jar file, or the manifest
947 * is corrupt, issue the appropriate error messages and exit.
948 *
949 * Even if there isn't a jar file, construct a manifest_info structure
950 * containing the command line information. It's a convenient way to carry
951 * this data around.
952 */
953 if (jarflag && operand) {
954 if ((res = JLI_ParseManifest(operand, &info)) != 0) {
955 if (res == -1)
956 JLI_ReportErrorMessage(JAR_ERROR2, operand);
957 else
958 JLI_ReportErrorMessage(JAR_ERROR3, operand);
959 exit(1);
960 }
961
962 /*
963 * Command line splash screen option should have precedence
964 * over the manifest, so the manifest data is used only if
965 * splash_file_name has not been initialized above during command
966 * line parsing
967 */
968 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) {
969 splash_file_name = info.splashscreen_image_file_name;
970 splash_jar_name = operand;
971 }
972 } else {
973 info.manifest_version = NULL;
974 info.main_class = NULL;
975 info.jre_version = NULL;
976 info.jre_restrict_search = 0;
977 }
978
979 /*
980 * Passing on splash screen info in environment variables
981 */
982 if (splash_file_name && !headlessflag) {
983 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1);
984 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
985 JLI_StrCat(splash_file_entry, splash_file_name);
986 putenv(splash_file_entry);
987 }
988 if (splash_jar_name && !headlessflag) {
989 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1);
990 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
991 JLI_StrCat(splash_jar_entry, splash_jar_name);
992 putenv(splash_jar_entry);
993 }
994
995
996 /*
997 * "Valid" returns (other than unrecoverable errors) follow. Set
998 * main_class as a side-effect of this routine.
999 */
1000 if (info.main_class != NULL)
1001 *main_class = JLI_StringDup(info.main_class);
1002
1003 if (info.jre_version == NULL) {
1004 JLI_FreeManifest();
1005 return;
1006 }
1007
1008 }
1009
1010 /*
1011 * Parses command line arguments. Returns JNI_FALSE if launcher
1012 * should exit without starting vm, returns JNI_TRUE if vm needs
1013 * to be started to process given options. *pret (the launcher
1014 * process return value) is set to 0 for a normal exit.
1015 */
1016 static jboolean
1017 ParseArguments(int *pargc, char ***pargv,
1018 int *pmode, char **pwhat,
1019 int *pret, const char *jrepath)
1020 {
1021 int argc = *pargc;
1022 char **argv = *pargv;
1023 int mode = LM_UNKNOWN;
1024 char *arg;
1025
1026 *pret = 0;
1027
1028 while ((arg = *argv) != 0 && *arg == '-') {
1029 argv++; --argc;
1030 if (JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) {
1031 ARG_CHECK (argc, ARG_ERROR1, arg);
1032 SetClassPath(*argv);
1033 mode = LM_CLASS;
1034 argv++; --argc;
1035 } else if (JLI_StrCmp(arg, "-jar") == 0) {
1036 ARG_CHECK (argc, ARG_ERROR2, arg);
1037 mode = LM_JAR;
1038 } else if (JLI_StrCmp(arg, "-help") == 0 ||
1039 JLI_StrCmp(arg, "-h") == 0 ||
1040 JLI_StrCmp(arg, "-?") == 0) {
1041 printUsage = JNI_TRUE;
1042 return JNI_TRUE;
1043 } else if (JLI_StrCmp(arg, "-version") == 0) {
1044 printVersion = JNI_TRUE;
1045 return JNI_TRUE;
1046 } else if (JLI_StrCmp(arg, "-showversion") == 0) {
1047 showVersion = JNI_TRUE;
1048 } else if (JLI_StrCmp(arg, "-X") == 0) {
1049 printXUsage = JNI_TRUE;
1050 return JNI_TRUE;
1051 /*
1052 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT.
1053 * In the latter case, any SUBOPT value not recognized will default to "all"
1054 */
1055 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 ||
1056 JLI_StrCCmp(arg, "-XshowSettings:") == 0) {
1057 showSettings = arg;
1058 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) {
1059 AddOption("-Dsun.java.launcher.diag=true", NULL);
1060 /*
1061 * The following case provide backward compatibility with old-style
1062 * command line options.
1063 */
1064 } else if (JLI_StrCmp(arg, "-fullversion") == 0) {
1065 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion());
1066 return JNI_FALSE;
1067 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) {
1068 AddOption("-verbose:gc", NULL);
1069 } else if (JLI_StrCmp(arg, "-t") == 0) {
1070 AddOption("-Xt", NULL);
1071 } else if (JLI_StrCmp(arg, "-tm") == 0) {
1072 AddOption("-Xtm", NULL);
1073 } else if (JLI_StrCmp(arg, "-debug") == 0) {
1074 AddOption("-Xdebug", NULL);
1075 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) {
1076 AddOption("-Xnoclassgc", NULL);
1077 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) {
1078 AddOption("-Xverify:all", NULL);
1079 } else if (JLI_StrCmp(arg, "-verify") == 0) {
1080 AddOption("-Xverify:all", NULL);
1081 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) {
1082 AddOption("-Xverify:remote", NULL);
1083 } else if (JLI_StrCmp(arg, "-noverify") == 0) {
1084 AddOption("-Xverify:none", NULL);
1085 } else if (JLI_StrCCmp(arg, "-prof") == 0) {
1086 char *p = arg + 5;
1087 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 50);
1088 if (*p) {
1089 sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1);
1090 } else {
1091 sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof");
1092 }
1093 AddOption(tmp, NULL);
1094 } else if (JLI_StrCCmp(arg, "-ss") == 0 ||
1095 JLI_StrCCmp(arg, "-oss") == 0 ||
1096 JLI_StrCCmp(arg, "-ms") == 0 ||
1097 JLI_StrCCmp(arg, "-mx") == 0) {
1098 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6);
1099 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */
1100 AddOption(tmp, NULL);
1101 } else if (JLI_StrCmp(arg, "-checksource") == 0 ||
1102 JLI_StrCmp(arg, "-cs") == 0 ||
1103 JLI_StrCmp(arg, "-noasyncgc") == 0) {
1104 /* No longer supported */
1105 JLI_ReportErrorMessage(ARG_WARN, arg);
1106 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1107 ; /* Ignore machine independent options already handled */
1108 } else if (ProcessPlatformOption(arg)) {
1109 ; /* Processing of platform dependent options */
1110 } else if (RemovableOption(arg)) {
1111 ; /* Do not pass option to vm. */
1112 } else {
1113 AddOption(arg, NULL);
1114 }
1115 }
1116
1117 if (--argc >= 0) {
1118 *pwhat = *argv++;
1119 }
1120
1121 if (*pwhat == NULL) {
1122 *pret = 1;
1123 } else if (mode == LM_UNKNOWN) {
1124 /* default to LM_CLASS if -jar and -cp option are
1125 * not specified */
1126 mode = LM_CLASS;
1127 }
1128
1129 if (argc >= 0) {
1130 *pargc = argc;
1131 *pargv = argv;
1132 }
1133
1134 *pmode = mode;
1135
1136 return JNI_TRUE;
1137 }
1138
1139 /*
1140 * Initializes the Java Virtual Machine. Also frees options array when
1141 * finished.
1142 */
1143 static jboolean
1144 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1145 {
1146 JavaVMInitArgs args;
1147 jint r;
1148
1149 memset(&args, 0, sizeof(args));
1150 args.version = JNI_VERSION_1_2;
1151 args.nOptions = numOptions;
1152 args.options = options;
1153 args.ignoreUnrecognized = JNI_FALSE;
1154
1155 if (JLI_IsTraceLauncher()) {
1156 int i = 0;
1157 printf("JavaVM args:\n ");
1158 printf("version 0x%08lx, ", (long)args.version);
1159 printf("ignoreUnrecognized is %s, ",
1160 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1161 printf("nOptions is %ld\n", (long)args.nOptions);
1162 for (i = 0; i < numOptions; i++)
1163 printf(" option[%2d] = '%s'\n",
1164 i, args.options[i].optionString);
1165 }
1166
1167 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1168 JLI_MemFree(options);
1169 return r == JNI_OK;
1170 }
1171
1172 static jclass helperClass = NULL;
1173
1174 jclass
1175 GetLauncherHelperClass(JNIEnv *env)
1176 {
1177 if (helperClass == NULL) {
1178 NULL_CHECK0(helperClass = FindBootStrapClass(env,
1179 "sun/launcher/LauncherHelper"));
1180 }
1181 return helperClass;
1182 }
1183
1184 static jmethodID makePlatformStringMID = NULL;
1185 /*
1186 * Returns a new Java string object for the specified platform string.
1187 */
1188 static jstring
1189 NewPlatformString(JNIEnv *env, char *s)
1190 {
1191 int len = (int)JLI_StrLen(s);
1192 jbyteArray ary;
1193 jclass cls = GetLauncherHelperClass(env);
1194 NULL_CHECK0(cls);
1195 if (s == NULL)
1196 return 0;
1197
1198 ary = (*env)->NewByteArray(env, len);
1199 if (ary != 0) {
1200 jstring str = 0;
1201 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1202 if (!(*env)->ExceptionOccurred(env)) {
1203 if (makePlatformStringMID == NULL) {
1204 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env,
1205 cls, "makePlatformString", "(Z[B)Ljava/lang/String;"));
1206 }
1207 str = (*env)->CallStaticObjectMethod(env, cls,
1208 makePlatformStringMID, USE_STDERR, ary);
1209 (*env)->DeleteLocalRef(env, ary);
1210 return str;
1211 }
1212 }
1213 return 0;
1214 }
1215
1216 /*
1217 * Returns a new array of Java string objects for the specified
1218 * array of platform strings.
1219 */
1220 jobjectArray
1221 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1222 {
1223 jarray cls;
1224 jarray ary;
1225 int i;
1226
1227 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String"));
1228 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1229 for (i = 0; i < strc; i++) {
1230 jstring str = NewPlatformString(env, *strv++);
1231 NULL_CHECK0(str);
1232 (*env)->SetObjectArrayElement(env, ary, i, str);
1233 (*env)->DeleteLocalRef(env, str);
1234 }
1235 return ary;
1236 }
1237
1238 /*
1239 * Loads a class and verifies that the main class is present and it is ok to
1240 * call it for more details refer to the java implementation.
1241 */
1242 static jclass
1243 LoadMainClass(JNIEnv *env, int mode, char *name)
1244 {
1245 jmethodID mid;
1246 jstring str;
1247 jobject result;
1248 jlong start, end;
1249 jclass cls = GetLauncherHelperClass(env);
1250 NULL_CHECK0(cls);
1251 if (JLI_IsTraceLauncher()) {
1252 start = CounterGet();
1253 }
1254 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1255 "checkAndLoadMain",
1256 "(ZILjava/lang/String;)Ljava/lang/Class;"));
1257
1258 NULL_CHECK0(str = NewPlatformString(env, name));
1259 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid,
1260 USE_STDERR, mode, str));
1261
1262 if (JLI_IsTraceLauncher()) {
1263 end = CounterGet();
1264 printf("%ld micro seconds to load main class\n",
1265 (long)(jint)Counter2Micros(end-start));
1266 printf("----%s----\n", JLDEBUG_ENV_ENTRY);
1267 }
1268
1269 return (jclass)result;
1270 }
1271
1272 static jclass
1273 GetApplicationClass(JNIEnv *env)
1274 {
1275 jmethodID mid;
1276 jclass cls = GetLauncherHelperClass(env);
1277 NULL_CHECK0(cls);
1278 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1279 "getApplicationClass",
1280 "()Ljava/lang/Class;"));
1281
1282 return (*env)->CallStaticObjectMethod(env, cls, mid);
1283 }
1284
1285 /*
1286 * For tools, convert command line args thus:
1287 * javac -cp foo:foo/"*" -J-ms32m ...
1288 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1289 *
1290 * Takes 4 parameters, and returns the populated arguments
1291 */
1292 static void
1293 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv)
1294 {
1295 int argc = *pargc;
1296 char **argv = *pargv;
1297 int nargc = argc + jargc;
1298 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1299 int i;
1300
1301 *pargc = nargc;
1302 *pargv = nargv;
1303
1304 /* Copy the VM arguments (i.e. prefixed with -J) */
1305 for (i = 0; i < jargc; i++) {
1306 const char *arg = jargv[i];
1307 if (arg[0] == '-' && arg[1] == 'J') {
1308 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2);
1309 }
1310 }
1311
1312 for (i = 0; i < argc; i++) {
1313 char *arg = argv[i];
1314 if (arg[0] == '-' && arg[1] == 'J') {
1315 if (arg[2] == '\0') {
1316 JLI_ReportErrorMessage(ARG_ERROR3);
1317 exit(1);
1318 }
1319 *nargv++ = arg + 2;
1320 }
1321 }
1322
1323 /* Copy the rest of the arguments */
1324 for (i = 0; i < jargc ; i++) {
1325 const char *arg = jargv[i];
1326 if (arg[0] != '-' || arg[1] != 'J') {
1327 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg);
1328 }
1329 }
1330 for (i = 0; i < argc; i++) {
1331 char *arg = argv[i];
1332 if (arg[0] == '-') {
1333 if (arg[1] == 'J')
1334 continue;
1335 if (IsWildCardEnabled() && arg[1] == 'c'
1336 && (JLI_StrCmp(arg, "-cp") == 0 ||
1337 JLI_StrCmp(arg, "-classpath") == 0)
1338 && i < argc - 1) {
1339 *nargv++ = arg;
1340 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1341 i++;
1342 continue;
1343 }
1344 }
1345 *nargv++ = arg;
1346 }
1347 *nargv = 0;
1348 }
1349
1350 /*
1351 * For our tools, we try to add 3 VM options:
1352 * -Denv.class.path=<envcp>
1353 * -Dapplication.home=<apphome>
1354 * -Djava.class.path=<appcp>
1355 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1356 * tells javac where to find binary classes through this environment
1357 * variable. Notice that users will be able to compile against our
1358 * tools classes (sun.tools.javac.Main) only if they explicitly add
1359 * tools.jar to CLASSPATH.
1360 * <apphome> is the directory where the application is installed.
1361 * <appcp> is the classpath to where our apps' classfiles are.
1362 */
1363 static jboolean
1364 AddApplicationOptions(int cpathc, const char **cpathv)
1365 {
1366 char *envcp, *appcp, *apphome;
1367 char home[MAXPATHLEN]; /* application home */
1368 char separator[] = { PATH_SEPARATOR, '\0' };
1369 int size, i;
1370
1371 {
1372 const char *s = getenv("CLASSPATH");
1373 if (s) {
1374 s = (char *) JLI_WildcardExpandClasspath(s);
1375 /* 40 for -Denv.class.path= */
1376 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow
1377 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40);
1378 sprintf(envcp, "-Denv.class.path=%s", s);
1379 AddOption(envcp, NULL);
1380 }
1381 }
1382 }
1383
1384 if (!GetApplicationHome(home, sizeof(home))) {
1385 JLI_ReportErrorMessage(CFG_ERROR5);
1386 return JNI_FALSE;
1387 }
1388
1389 /* 40 for '-Dapplication.home=' */
1390 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40);
1391 sprintf(apphome, "-Dapplication.home=%s", home);
1392 AddOption(apphome, NULL);
1393
1394 /* How big is the application's classpath? */
1395 size = 40; /* 40: "-Djava.class.path=" */
1396 for (i = 0; i < cpathc; i++) {
1397 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */
1398 }
1399 appcp = (char *)JLI_MemAlloc(size + 1);
1400 JLI_StrCpy(appcp, "-Djava.class.path=");
1401 for (i = 0; i < cpathc; i++) {
1402 JLI_StrCat(appcp, home); /* c:\program files\myapp */
1403 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */
1404 JLI_StrCat(appcp, separator); /* ; */
1405 }
1406 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */
1407 AddOption(appcp, NULL);
1408 return JNI_TRUE;
1409 }
1410
1411 /*
1412 * inject the -Dsun.java.command pseudo property into the args structure
1413 * this pseudo property is used in the HotSpot VM to expose the
1414 * Java class name and arguments to the main method to the VM. The
1415 * HotSpot VM uses this pseudo property to store the Java class name
1416 * (or jar file name) and the arguments to the class's main method
1417 * to the instrumentation memory region. The sun.java.command pseudo
1418 * property is not exported by HotSpot to the Java layer.
1419 */
1420 void
1421 SetJavaCommandLineProp(char *what, int argc, char **argv)
1422 {
1423
1424 int i = 0;
1425 size_t len = 0;
1426 char* javaCommand = NULL;
1427 char* dashDstr = "-Dsun.java.command=";
1428
1429 if (what == NULL) {
1430 /* unexpected, one of these should be set. just return without
1431 * setting the property
1432 */
1433 return;
1434 }
1435
1436 /* determine the amount of memory to allocate assuming
1437 * the individual components will be space separated
1438 */
1439 len = JLI_StrLen(what);
1440 for (i = 0; i < argc; i++) {
1441 len += JLI_StrLen(argv[i]) + 1;
1442 }
1443
1444 /* allocate the memory */
1445 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1);
1446
1447 /* build the -D string */
1448 *javaCommand = '\0';
1449 JLI_StrCat(javaCommand, dashDstr);
1450 JLI_StrCat(javaCommand, what);
1451
1452 for (i = 0; i < argc; i++) {
1453 /* the components of the string are space separated. In
1454 * the case of embedded white space, the relationship of
1455 * the white space separated components to their true
1456 * positional arguments will be ambiguous. This issue may
1457 * be addressed in a future release.
1458 */
1459 JLI_StrCat(javaCommand, " ");
1460 JLI_StrCat(javaCommand, argv[i]);
1461 }
1462
1463 AddOption(javaCommand, NULL);
1464 }
1465
1466 /*
1467 * JVM would like to know if it's created by a standard Sun launcher, or by
1468 * user native application, the following property indicates the former.
1469 */
1470 void
1471 SetJavaLauncherProp() {
1472 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL);
1473 }
1474
1475 /*
1476 * Prints the version information from the java.version and other properties.
1477 */
1478 static void
1479 PrintJavaVersion(JNIEnv *env, jboolean extraLF)
1480 {
1481 jclass ver;
1482 jmethodID print;
1483
1484 NULL_CHECK(ver = FindBootStrapClass(env, "sun/misc/Version"));
1485 NULL_CHECK(print = (*env)->GetStaticMethodID(env,
1486 ver,
1487 (extraLF == JNI_TRUE) ? "println" : "print",
1488 "()V"
1489 )
1490 );
1491
1492 (*env)->CallStaticVoidMethod(env, ver, print);
1493 }
1494
1495 /*
1496 * Prints all the Java settings, see the java implementation for more details.
1497 */
1498 static void
1499 ShowSettings(JNIEnv *env, char *optString)
1500 {
1501 jmethodID showSettingsID;
1502 jstring joptString;
1503 jclass cls = GetLauncherHelperClass(env);
1504 NULL_CHECK(cls);
1505 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls,
1506 "showSettings", "(ZLjava/lang/String;JJJZ)V"));
1507 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1508 (*env)->CallStaticVoidMethod(env, cls, showSettingsID,
1509 USE_STDERR,
1510 joptString,
1511 (jlong)initialHeapSize,
1512 (jlong)maxHeapSize,
1513 (jlong)threadStackSize,
1514 ServerClassMachine());
1515 }
1516
1517 /*
1518 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java
1519 */
1520 static void
1521 PrintUsage(JNIEnv* env, jboolean doXUsage)
1522 {
1523 jmethodID initHelp, vmSelect, vmSynonym, vmErgo, printHelp, printXUsageMessage;
1524 jstring jprogname, vm1, vm2;
1525 int i;
1526 jclass cls = GetLauncherHelperClass(env);
1527 NULL_CHECK(cls);
1528 if (doXUsage) {
1529 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls,
1530 "printXUsageMessage", "(Z)V"));
1531 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, USE_STDERR);
1532 } else {
1533 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls,
1534 "initHelpMessage", "(Ljava/lang/String;)V"));
1535
1536 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage",
1537 "(Ljava/lang/String;Ljava/lang/String;)V"));
1538
1539 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls,
1540 "appendVmSynonymMessage",
1541 "(Ljava/lang/String;Ljava/lang/String;)V"));
1542 NULL_CHECK(vmErgo = (*env)->GetStaticMethodID(env, cls,
1543 "appendVmErgoMessage", "(ZLjava/lang/String;)V"));
1544
1545 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls,
1546 "printHelpMessage", "(Z)V"));
1547
1548 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name));
1549
1550 /* Initialize the usage message with the usual preamble */
1551 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname);
1552 CHECK_EXCEPTION_RETURN();
1553
1554
1555 /* Assemble the other variant part of the usage */
1556 if ((knownVMs[0].flag == VM_KNOWN) ||
1557 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) {
1558 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[0].name));
1559 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[0].name+1));
1560 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
1561 CHECK_EXCEPTION_RETURN();
1562 }
1563 for (i=1; i<knownVMsCount; i++) {
1564 if (knownVMs[i].flag == VM_KNOWN) {
1565 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1566 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1));
1567 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
1568 CHECK_EXCEPTION_RETURN();
1569 }
1570 }
1571 for (i=1; i<knownVMsCount; i++) {
1572 if (knownVMs[i].flag == VM_ALIASED_TO) {
1573 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1574 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1));
1575 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2);
1576 CHECK_EXCEPTION_RETURN();
1577 }
1578 }
1579
1580 /* The first known VM is the default */
1581 {
1582 jboolean isServerClassMachine = ServerClassMachine();
1583
1584 const char* defaultVM = knownVMs[0].name+1;
1585 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && isServerClassMachine) {
1586 defaultVM = knownVMs[0].server_class+1;
1587 }
1588
1589 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, defaultVM));
1590 (*env)->CallStaticVoidMethod(env, cls, vmErgo, isServerClassMachine, vm1);
1591 CHECK_EXCEPTION_RETURN();
1592 }
1593
1594 /* Complete the usage message and print to stderr*/
1595 (*env)->CallStaticVoidMethod(env, cls, printHelp, USE_STDERR);
1596 }
1597 return;
1598 }
1599
1600 /*
1601 * Read the jvm.cfg file and fill the knownJVMs[] array.
1602 *
1603 * The functionality of the jvm.cfg file is subject to change without
1604 * notice and the mechanism will be removed in the future.
1605 *
1606 * The lexical structure of the jvm.cfg file is as follows:
1607 *
1608 * jvmcfg := { vmLine }
1609 * vmLine := knownLine
1610 * | aliasLine
1611 * | warnLine
1612 * | ignoreLine
1613 * | errorLine
1614 * | predicateLine
1615 * | commentLine
1616 * knownLine := flag "KNOWN" EOL
1617 * warnLine := flag "WARN" EOL
1618 * ignoreLine := flag "IGNORE" EOL
1619 * errorLine := flag "ERROR" EOL
1620 * aliasLine := flag "ALIASED_TO" flag EOL
1621 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
1622 * commentLine := "#" text EOL
1623 * flag := "-" identifier
1624 *
1625 * The semantics are that when someone specifies a flag on the command line:
1626 * - if the flag appears on a knownLine, then the identifier is used as
1627 * the name of the directory holding the JVM library (the name of the JVM).
1628 * - if the flag appears as the first flag on an aliasLine, the identifier
1629 * of the second flag is used as the name of the JVM.
1630 * - if the flag appears on a warnLine, the identifier is used as the
1631 * name of the JVM, but a warning is generated.
1632 * - if the flag appears on an ignoreLine, the identifier is recognized as the
1633 * name of a JVM, but the identifier is ignored and the default vm used
1634 * - if the flag appears on an errorLine, an error is generated.
1635 * - if the flag appears as the first flag on a predicateLine, and
1636 * the machine on which you are running passes the predicate indicated,
1637 * then the identifier of the second flag is used as the name of the JVM,
1638 * otherwise the identifier of the first flag is used as the name of the JVM.
1639 * If no flag is given on the command line, the first vmLine of the jvm.cfg
1640 * file determines the name of the JVM.
1641 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
1642 * since they only make sense if someone hasn't specified the name of the
1643 * JVM on the command line.
1644 *
1645 * The intent of the jvm.cfg file is to allow several JVM libraries to
1646 * be installed in different subdirectories of a single JRE installation,
1647 * for space-savings and convenience in testing.
1648 * The intent is explicitly not to provide a full aliasing or predicate
1649 * mechanism.
1650 */
1651 jint
1652 ReadKnownVMs(const char *jvmCfgName, jboolean speculative)
1653 {
1654 FILE *jvmCfg;
1655 char line[MAXPATHLEN+20];
1656 int cnt = 0;
1657 int lineno = 0;
1658 jlong start, end;
1659 int vmType;
1660 char *tmpPtr;
1661 char *altVMName = NULL;
1662 char *serverClassVMName = NULL;
1663 static char *whiteSpace = " \t";
1664 if (JLI_IsTraceLauncher()) {
1665 start = CounterGet();
1666 }
1667
1668 jvmCfg = fopen(jvmCfgName, "r");
1669 if (jvmCfg == NULL) {
1670 if (!speculative) {
1671 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName);
1672 exit(1);
1673 } else {
1674 return -1;
1675 }
1676 }
1677 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
1678 vmType = VM_UNKNOWN;
1679 lineno++;
1680 if (line[0] == '#')
1681 continue;
1682 if (line[0] != '-') {
1683 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName);
1684 }
1685 if (cnt >= knownVMsLimit) {
1686 GrowKnownVMs(cnt);
1687 }
1688 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */
1689 tmpPtr = line + JLI_StrCSpn(line, whiteSpace);
1690 if (*tmpPtr == 0) {
1691 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
1692 } else {
1693 /* Null-terminate this string for JLI_StringDup below */
1694 *tmpPtr++ = 0;
1695 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
1696 if (*tmpPtr == 0) {
1697 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
1698 } else {
1699 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) {
1700 vmType = VM_KNOWN;
1701 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) {
1702 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
1703 if (*tmpPtr != 0) {
1704 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
1705 }
1706 if (*tmpPtr == 0) {
1707 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
1708 } else {
1709 /* Null terminate altVMName */
1710 altVMName = tmpPtr;
1711 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
1712 *tmpPtr = 0;
1713 vmType = VM_ALIASED_TO;
1714 }
1715 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) {
1716 vmType = VM_WARN;
1717 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) {
1718 vmType = VM_IGNORE;
1719 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) {
1720 vmType = VM_ERROR;
1721 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) {
1722 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
1723 if (*tmpPtr != 0) {
1724 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
1725 }
1726 if (*tmpPtr == 0) {
1727 JLI_ReportErrorMessage(CFG_WARN4, lineno, jvmCfgName);
1728 } else {
1729 /* Null terminate server class VM name */
1730 serverClassVMName = tmpPtr;
1731 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
1732 *tmpPtr = 0;
1733 vmType = VM_IF_SERVER_CLASS;
1734 }
1735 } else {
1736 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]);
1737 vmType = VM_KNOWN;
1738 }
1739 }
1740 }
1741
1742 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line);
1743 if (vmType != VM_UNKNOWN) {
1744 knownVMs[cnt].name = JLI_StringDup(line);
1745 knownVMs[cnt].flag = vmType;
1746 switch (vmType) {
1747 default:
1748 break;
1749 case VM_ALIASED_TO:
1750 knownVMs[cnt].alias = JLI_StringDup(altVMName);
1751 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n",
1752 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
1753 break;
1754 case VM_IF_SERVER_CLASS:
1755 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName);
1756 JLI_TraceLauncher(" name: %s vmType: %s server_class: %s\n",
1757 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class);
1758 break;
1759 }
1760 cnt++;
1761 }
1762 }
1763 fclose(jvmCfg);
1764 knownVMsCount = cnt;
1765
1766 if (JLI_IsTraceLauncher()) {
1767 end = CounterGet();
1768 printf("%ld micro seconds to parse jvm.cfg\n",
1769 (long)(jint)Counter2Micros(end-start));
1770 }
1771
1772 return cnt;
1773 }
1774
1775
1776 static void
1777 GrowKnownVMs(int minimum)
1778 {
1779 struct vmdesc* newKnownVMs;
1780 int newMax;
1781
1782 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
1783 if (newMax <= minimum) {
1784 newMax = minimum;
1785 }
1786 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
1787 if (knownVMs != NULL) {
1788 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
1789 }
1790 JLI_MemFree(knownVMs);
1791 knownVMs = newKnownVMs;
1792 knownVMsLimit = newMax;
1793 }
1794
1795
1796 /* Returns index of VM or -1 if not found */
1797 static int
1798 KnownVMIndex(const char* name)
1799 {
1800 int i;
1801 if (JLI_StrCCmp(name, "-J") == 0) name += 2;
1802 for (i = 0; i < knownVMsCount; i++) {
1803 if (!JLI_StrCmp(name, knownVMs[i].name)) {
1804 return i;
1805 }
1806 }
1807 return -1;
1808 }
1809
1810 static void
1811 FreeKnownVMs()
1812 {
1813 int i;
1814 for (i = 0; i < knownVMsCount; i++) {
1815 JLI_MemFree(knownVMs[i].name);
1816 knownVMs[i].name = NULL;
1817 }
1818 JLI_MemFree(knownVMs);
1819 }
1820
1821 /*
1822 * Displays the splash screen according to the jar file name
1823 * and image file names stored in environment variables
1824 */
1825 void
1826 ShowSplashScreen()
1827 {
1828 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
1829 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
1830 int data_size;
1831 void *image_data = NULL;
1832 float scale_factor = 1;
1833 char *scaled_splash_name = NULL;
1834
1835 if (file_name == NULL){
1836 return;
1837 }
1838
1839 scaled_splash_name = DoSplashGetScaledImageName(
1840 jar_name, file_name, &scale_factor);
1841 if (jar_name) {
1842
1843 if (scaled_splash_name) {
1844 image_data = JLI_JarUnpackFile(
1845 jar_name, scaled_splash_name, &data_size);
1846 }
1847
1848 if (!image_data) {
1849 scale_factor = 1;
1850 image_data = JLI_JarUnpackFile(
1851 jar_name, file_name, &data_size);
1852 }
1853 if (image_data) {
1854 DoSplashInit();
1855 DoSplashSetScaleFactor(scale_factor);
1856 DoSplashLoadMemory(image_data, data_size);
1857 JLI_MemFree(image_data);
1858 }
1859 } else {
1860 DoSplashInit();
1861 if (scaled_splash_name) {
1862 DoSplashSetScaleFactor(scale_factor);
1863 DoSplashLoadFile(scaled_splash_name);
1864 } else {
1865 DoSplashLoadFile(file_name);
1866 }
1867 }
1868
1869 if (scaled_splash_name) {
1870 JLI_MemFree(scaled_splash_name);
1871 }
1872
1873 DoSplashSetFileJarName(file_name, jar_name);
1874
1875 /*
1876 * Done with all command line processing and potential re-execs so
1877 * clean up the environment.
1878 */
1879 (void)UnsetEnv(ENV_ENTRY);
1880 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
1881 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
1882
1883 JLI_MemFree(splash_jar_entry);
1884 JLI_MemFree(splash_file_entry);
1885
1886 }
1887
1888 const char*
1889 GetDotVersion()
1890 {
1891 return _dVersion;
1892 }
1893
1894 const char*
1895 GetFullVersion()
1896 {
1897 return _fVersion;
1898 }
1899
1900 const char*
1901 GetProgramName()
1902 {
1903 return _program_name;
1904 }
1905
1906 const char*
1907 GetLauncherName()
1908 {
1909 return _launcher_name;
1910 }
1911
1912 jint
1913 GetErgoPolicy()
1914 {
1915 return _ergo_policy;
1916 }
1917
1918 jboolean
1919 IsJavaArgs()
1920 {
1921 return _is_java_args;
1922 }
1923
1924 static jboolean
1925 IsWildCardEnabled()
1926 {
1927 return _wc_enabled;
1928 }
1929
1930 int
1931 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize,
1932 int argc, char **argv,
1933 int mode, char *what, int ret)
1934 {
1935
1936 /*
1937 * If user doesn't specify stack size, check if VM has a preference.
1938 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
1939 * return its default stack size through the init args structure.
1940 */
1941 if (threadStackSize == 0) {
1942 struct JDK1_1InitArgs args1_1;
1943 memset((void*)&args1_1, 0, sizeof(args1_1));
1944 args1_1.version = JNI_VERSION_1_1;
1945 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
1946 if (args1_1.javaStackSize > 0) {
1947 threadStackSize = args1_1.javaStackSize;
1948 }
1949 }
1950
1951 { /* Create a new thread to create JVM and invoke main method */
1952 JavaMainArgs args;
1953 int rslt;
1954
1955 args.argc = argc;
1956 args.argv = argv;
1957 args.mode = mode;
1958 args.what = what;
1959 args.ifn = *ifn;
1960
1961 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args);
1962 /* If the caller has deemed there is an error we
1963 * simply return that, otherwise we return the value of
1964 * the callee
1965 */
1966 return (ret != 0) ? ret : rslt;
1967 }
1968 }
1969
1970 static void
1971 DumpState()
1972 {
1973 if (!JLI_IsTraceLauncher()) return ;
1974 printf("Launcher state:\n");
1975 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off");
1976 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off");
1977 printf("\tprogram name:%s\n", GetProgramName());
1978 printf("\tlauncher name:%s\n", GetLauncherName());
1979 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off");
1980 printf("\tfullversion:%s\n", GetFullVersion());
1981 printf("\tdotversion:%s\n", GetDotVersion());
1982 printf("\tergo_policy:");
1983 switch(GetErgoPolicy()) {
1984 case NEVER_SERVER_CLASS:
1985 printf("NEVER_ACT_AS_A_SERVER_CLASS_MACHINE\n");
1986 break;
1987 case ALWAYS_SERVER_CLASS:
1988 printf("ALWAYS_ACT_AS_A_SERVER_CLASS_MACHINE\n");
1989 break;
1990 default:
1991 printf("DEFAULT_ERGONOMICS_POLICY\n");
1992 }
1993 }
1994
1995 /*
1996 * Return JNI_TRUE for an option string that has no effect but should
1997 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On
1998 * Solaris SPARC, this screening needs to be done if:
1999 * -d32 or -d64 is passed to a binary with an unmatched data model
2000 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the
2001 * exec to the proper binary). In the case of when the data model and the
2002 * requested version is matched, an exec would not occur, and these options
2003 * were erroneously passed to the vm.
2004 */
2005 jboolean
2006 RemovableOption(char * option)
2007 {
2008 /*
2009 * Unconditionally remove both -d32 and -d64 options since only
2010 * the last such options has an effect; e.g.
2011 * java -d32 -d64 -d32 -version
2012 * is equivalent to
2013 * java -d32 -version
2014 */
2015
2016 if( (JLI_StrCCmp(option, "-d32") == 0 ) ||
2017 (JLI_StrCCmp(option, "-d64") == 0 ) )
2018 return JNI_TRUE;
2019 else
2020 return JNI_FALSE;
2021 }
2022
2023 /*
2024 * A utility procedure to always print to stderr
2025 */
2026 void
2027 JLI_ReportMessage(const char* fmt, ...)
2028 {
2029 va_list vl;
2030 va_start(vl, fmt);
2031 vfprintf(stderr, fmt, vl);
2032 fprintf(stderr, "\n");
2033 va_end(vl);
2034 }