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