1 /*
2 * Copyright (c) 1995, 2014, 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 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();
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 * Entry point.
172 */
173 int
174 JLI_Launch(int argc, char ** argv, /* main argc, argc */
175 int jargc, const char** jargv, /* java args */
176 int appclassc, const char** appclassv, /* app classpath */
177 const char* fullversion, /* full version defined */
178 const char* dotversion, /* dot version defined */
179 const char* pname, /* program name */
180 const char* lname, /* launcher name */
181 jboolean javaargs, /* JAVA_ARGS */
182 jboolean cpwildcard, /* classpath wildcard*/
183 jboolean javaw, /* windows-only javaw */
184 jint ergo /* ergonomics class policy */
185 )
186 {
187 int mode = LM_UNKNOWN;
188 char *what = NULL;
189 char *cpath = 0;
190 char *main_class = NULL;
191 int ret;
192 InvocationFunctions ifn;
193 jlong start, end;
194 char jvmpath[MAXPATHLEN];
195 char jrepath[MAXPATHLEN];
196 char jvmcfg[MAXPATHLEN];
197
198 _fVersion = fullversion;
199 _dVersion = dotversion;
200 _launcher_name = lname;
201 _program_name = pname;
202 _is_java_args = javaargs;
203 _wc_enabled = cpwildcard;
204 _ergo_policy = ergo;
205
206 InitLauncher(javaw);
207 DumpState();
208 if (JLI_IsTraceLauncher()) {
209 int i;
210 printf("Command line args:\n");
211 for (i = 0; i < argc ; i++) {
212 printf("argv[%d] = %s\n", i, argv[i]);
213 }
214 AddOption("-Dsun.java.launcher.diag=true", NULL);
215 }
216
217 /*
218 * Make sure the specified version of the JRE is running.
219 *
220 * There are three things to note about the SelectVersion() routine:
221 * 1) If the version running isn't correct, this routine doesn't
222 * return (either the correct version has been exec'd or an error
223 * was issued).
224 * 2) Argc and Argv in this scope are *not* altered by this routine.
225 * It is the responsibility of subsequent code to ignore the
226 * arguments handled by this routine.
227 * 3) As a side-effect, the variable "main_class" is guaranteed to
228 * be set (if it should ever be set). This isn't exactly the
229 * poster child for structured programming, but it is a small
230 * price to pay for not processing a jar file operand twice.
231 * (Note: This side effect has been disabled. See comment on
232 * bugid 5030265 below.)
233 */
234 SelectVersion(argc, argv, &main_class);
235
236 CreateExecutionEnvironment(&argc, &argv,
237 jrepath, sizeof(jrepath),
238 jvmpath, sizeof(jvmpath),
239 jvmcfg, sizeof(jvmcfg));
240
241 ifn.CreateJavaVM = 0;
242 ifn.GetDefaultJavaVMInitArgs = 0;
243
244 if (JLI_IsTraceLauncher()) {
245 start = CounterGet();
246 }
247
248 if (!LoadJavaVM(jvmpath, &ifn)) {
249 return(6);
250 }
251
252 if (JLI_IsTraceLauncher()) {
253 end = CounterGet();
254 }
255
256 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n",
257 (long)(jint)Counter2Micros(end-start));
258
259 ++argv;
260 --argc;
261
262 if (IsJavaArgs()) {
263 /* Preprocess wrapper arguments */
264 TranslateApplicationArgs(jargc, jargv, &argc, &argv);
265 if (!AddApplicationOptions(appclassc, appclassv)) {
266 return(1);
267 }
268 } else {
269 /* Set default CLASSPATH */
270 cpath = getenv("CLASSPATH");
271 if (cpath == NULL) {
272 cpath = ".";
273 }
274 SetClassPath(cpath);
275 }
276
277 /* Parse command line options; if the return value of
278 * ParseArguments is false, the program should exit.
279 */
280 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath))
281 {
282 return(ret);
283 }
284
285 /* Override class path if -jar flag was specified */
286 if (mode == LM_JAR) {
287 SetClassPath(what); /* Override class path */
288 }
289
290 /* set the -Dsun.java.command pseudo property */
291 SetJavaCommandLineProp(what, argc, argv);
292
293 /* Set the -Dsun.java.launcher pseudo property */
294 SetJavaLauncherProp();
295
296 /* set the -Dsun.java.launcher.* platform properties */
297 SetJavaLauncherPlatformProps();
298
299 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret);
300 }
301 /*
302 * Always detach the main thread so that it appears to have ended when
303 * the application's main method exits. This will invoke the
304 * uncaught exception handler machinery if main threw an
305 * exception. An uncaught exception handler cannot change the
306 * launcher's return code except by calling System.exit.
307 *
308 * Wait for all non-daemon threads to end, then destroy the VM.
309 * This will actually create a trivial new Java waiter thread
310 * named "DestroyJavaVM", but this will be seen as a different
311 * thread from the one that executed main, even though they are
312 * the same C thread. This allows mainThread.join() and
313 * mainThread.isAlive() to work as expected.
314 */
315 #define LEAVE() \
316 do { \
317 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \
318 JLI_ReportErrorMessage(JVM_ERROR2); \
319 ret = 1; \
320 } \
321 if (JNI_TRUE) { \
322 (*vm)->DestroyJavaVM(vm); \
323 return ret; \
324 } \
325 } while (JNI_FALSE)
326
327 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \
328 do { \
329 if ((*env)->ExceptionOccurred(env)) { \
330 JLI_ReportExceptionDescription(env); \
331 LEAVE(); \
332 } \
333 if ((CENL_exception) == NULL) { \
334 JLI_ReportErrorMessage(JNI_ERROR); \
335 LEAVE(); \
336 } \
337 } while (JNI_FALSE)
338
339 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \
340 do { \
341 if ((*env)->ExceptionOccurred(env)) { \
342 JLI_ReportExceptionDescription(env); \
343 ret = (CEL_return_value); \
344 LEAVE(); \
345 } \
346 } while (JNI_FALSE)
347
348 #define CHECK_EXCEPTION_RETURN() \
349 do { \
350 if ((*env)->ExceptionOccurred(env)) { \
351 return; \
352 } \
353 } while (JNI_FALSE)
354
355 int JNICALL
356 JavaMain(void * _args)
357 {
358 JavaMainArgs *args = (JavaMainArgs *)_args;
359 int argc = args->argc;
360 char **argv = args->argv;
361 int mode = args->mode;
362 char *what = args->what;
363 InvocationFunctions ifn = args->ifn;
364
365 JavaVM *vm = 0;
366 JNIEnv *env = 0;
367 jclass mainClass = NULL;
368 jclass appClass = NULL; // actual application class being launched
369 jmethodID mainID;
370 jobjectArray mainArgs;
371 int ret = 0;
372 jlong start, end;
373
374 RegisterThread();
375
376 /* Initialize the virtual machine */
377 start = CounterGet();
378 if (!InitializeJVM(&vm, &env, &ifn)) {
379 JLI_ReportErrorMessage(JVM_ERROR1);
380 exit(1);
381 }
382
383 if (showSettings != NULL) {
384 ShowSettings(env, showSettings);
385 CHECK_EXCEPTION_LEAVE(1);
386 }
387
388 if (printVersion || showVersion) {
389 PrintJavaVersion(env, showVersion);
390 CHECK_EXCEPTION_LEAVE(0);
391 if (printVersion) {
392 LEAVE();
393 }
394 }
395
396 /* If the user specified neither a class name nor a JAR file */
397 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) {
398 PrintUsage(env, printXUsage);
399 CHECK_EXCEPTION_LEAVE(1);
400 LEAVE();
401 }
402
403 FreeKnownVMs(); /* after last possible PrintUsage() */
404
405 if (JLI_IsTraceLauncher()) {
406 end = CounterGet();
407 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n",
408 (long)(jint)Counter2Micros(end-start));
409 }
410
411 /* At this stage, argc/argv have the application's arguments */
412 if (JLI_IsTraceLauncher()){
413 int i;
414 printf("%s is '%s'\n", launchModeNames[mode], what);
415 printf("App's argc is %d\n", argc);
416 for (i=0; i < argc; i++) {
417 printf(" argv[%2d] = '%s'\n", i, argv[i]);
418 }
419 }
420
421 ret = 1;
422
423 /*
424 * Get the application's main class.
425 *
426 * See bugid 5030265. The Main-Class name has already been parsed
427 * from the manifest, but not parsed properly for UTF-8 support.
428 * Hence the code here ignores the value previously extracted and
429 * uses the pre-existing code to reextract the value. This is
430 * possibly an end of release cycle expedient. However, it has
431 * also been discovered that passing some character sets through
432 * the environment has "strange" behavior on some variants of
433 * Windows. Hence, maybe the manifest parsing code local to the
434 * launcher should never be enhanced.
435 *
436 * Hence, future work should either:
437 * 1) Correct the local parsing code and verify that the
438 * Main-Class attribute gets properly passed through
439 * all environments,
440 * 2) Remove the vestages of maintaining main_class through
441 * the environment (and remove these comments).
442 *
443 * This method also correctly handles launching existing JavaFX
444 * applications that may or may not have a Main-Class manifest entry.
445 */
446 mainClass = LoadMainClass(env, mode, what);
447 CHECK_EXCEPTION_NULL_LEAVE(mainClass);
448 /*
449 * In some cases when launching an application that needs a helper, e.g., a
450 * JavaFX application with no main method, the mainClass will not be the
451 * applications own main class but rather a helper class. To keep things
452 * consistent in the UI we need to track and report the application main class.
453 */
454 appClass = GetApplicationClass(env);
455 NULL_CHECK_RETURN_VALUE(appClass, -1);
456 /*
457 * PostJVMInit uses the class name as the application name for GUI purposes,
458 * for example, on OSX this sets the application name in the menu bar for
459 * both SWT and JavaFX. So we'll pass the actual application class here
460 * instead of mainClass as that may be a launcher or helper class instead
461 * of the application class.
462 */
463 PostJVMInit(env, appClass, vm);
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 /* copied from HotSpot function "atomll()" */
644 static int
645 parse_size(const char *s, jlong *result) {
646 jlong n = 0;
647 int args_read = sscanf(s, jlong_format_specifier(), &n);
648 if (args_read != 1) {
649 return 0;
650 }
651 while (*s != '\0' && *s >= '0' && *s <= '9') {
652 s++;
653 }
654 // 4705540: illegal if more characters are found after the first non-digit
655 if (JLI_StrLen(s) > 1) {
656 return 0;
657 }
658 switch (*s) {
659 case 'T': case 't':
660 *result = n * GB * KB;
661 return 1;
662 case 'G': case 'g':
663 *result = n * GB;
664 return 1;
665 case 'M': case 'm':
666 *result = n * MB;
667 return 1;
668 case 'K': case 'k':
669 *result = n * KB;
670 return 1;
671 case '\0':
672 *result = n;
673 return 1;
674 default:
675 /* Create JVM with default stack and let VM handle malformed -Xss string*/
676 return 0;
677 }
678 }
679
680 /*
681 * Adds a new VM option with the given given name and value.
682 */
683 void
684 AddOption(char *str, void *info)
685 {
686 /*
687 * Expand options array if needed to accommodate at least one more
688 * VM option.
689 */
690 if (numOptions >= maxOptions) {
691 if (options == 0) {
692 maxOptions = 4;
693 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
694 } else {
695 JavaVMOption *tmp;
696 maxOptions *= 2;
697 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
698 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
699 JLI_MemFree(options);
700 options = tmp;
701 }
702 }
703 options[numOptions].optionString = str;
704 options[numOptions++].extraInfo = info;
705
706 if (JLI_StrCCmp(str, "-Xss") == 0) {
707 jlong tmp;
708 if (parse_size(str + 4, &tmp)) {
709 threadStackSize = tmp;
710 }
711 }
712
713 if (JLI_StrCCmp(str, "-Xmx") == 0) {
714 jlong tmp;
715 if (parse_size(str + 4, &tmp)) {
716 maxHeapSize = tmp;
717 }
718 }
719
720 if (JLI_StrCCmp(str, "-Xms") == 0) {
721 jlong tmp;
722 if (parse_size(str + 4, &tmp)) {
723 initialHeapSize = tmp;
724 }
725 }
726 }
727
728 static void
729 SetClassPath(const char *s)
730 {
731 char *def;
732 const char *orig = s;
733 static const char format[] = "-Djava.class.path=%s";
734 /*
735 * usually we should not get a null pointer, but there are cases where
736 * we might just get one, in which case we simply ignore it, and let the
737 * caller deal with it
738 */
739 if (s == NULL)
740 return;
741 s = JLI_WildcardExpandClasspath(s);
742 def = JLI_MemAlloc(sizeof(format)
743 - 2 /* strlen("%s") */
744 + JLI_StrLen(s));
745 sprintf(def, format, s);
746 AddOption(def, NULL);
747 if (s != orig)
748 JLI_MemFree((char *) s);
749 }
750
751 /*
752 * The SelectVersion() routine ensures that an appropriate version of
753 * the JRE is running. The specification for the appropriate version
754 * is obtained from either the manifest of a jar file (preferred) or
755 * from command line options.
756 * The routine also parses splash screen command line options and
757 * passes on their values in private environment variables.
758 */
759 static void
760 SelectVersion(int argc, char **argv, char **main_class)
761 {
762 char *arg;
763 char **new_argv;
764 char **new_argp;
765 char *operand;
766 char *version = NULL;
767 char *jre = NULL;
768 int jarflag = 0;
769 int headlessflag = 0;
770 int restrict_search = -1; /* -1 implies not known */
771 manifest_info info;
772 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "=";
773 char *splash_file_name = NULL;
774 char *splash_jar_name = NULL;
775 char *env_in;
776 int res;
777
778 /*
779 * If the version has already been selected, set *main_class
780 * with the value passed through the environment (if any) and
781 * simply return.
782 */
783 if ((env_in = getenv(ENV_ENTRY)) != NULL) {
784 if (*env_in != '\0')
785 *main_class = JLI_StringDup(env_in);
786 return;
787 }
788
789 /*
790 * Scan through the arguments for options relevant to multiple JRE
791 * support. For reference, the command line syntax is defined as:
792 *
793 * SYNOPSIS
794 * java [options] class [argument...]
795 *
796 * java [options] -jar file.jar [argument...]
797 *
798 * As the scan is performed, make a copy of the argument list with
799 * the version specification options (new to 1.5) removed, so that
800 * a version less than 1.5 can be exec'd.
801 *
802 * Note that due to the syntax of the native Windows interface
803 * CreateProcess(), processing similar to the following exists in
804 * the Windows platform specific routine ExecJRE (in java_md.c).
805 * Changes here should be reproduced there.
806 */
807 new_argv = JLI_MemAlloc((argc + 1) * sizeof(char*));
808 new_argv[0] = argv[0];
809 new_argp = &new_argv[1];
810 argc--;
811 argv++;
812 while ((arg = *argv) != 0 && *arg == '-') {
813 if (JLI_StrCCmp(arg, "-version:") == 0) {
814 version = arg + 9;
815 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) {
816 restrict_search = 1;
817 } else if (JLI_StrCmp(arg, "-no-jre-restrict-search") == 0) {
818 restrict_search = 0;
819 } else {
820 if (JLI_StrCmp(arg, "-jar") == 0)
821 jarflag = 1;
822 /* deal with "unfortunate" classpath syntax */
823 if ((JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) &&
824 (argc >= 2)) {
825 *new_argp++ = arg;
826 argc--;
827 argv++;
828 arg = *argv;
829 }
830
831 /*
832 * Checking for headless toolkit option in the some way as AWT does:
833 * "true" means true and any other value means false
834 */
835 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) {
836 headlessflag = 1;
837 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) {
838 headlessflag = 0;
839 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
840 splash_file_name = arg+8;
841 }
842 *new_argp++ = arg;
843 }
844 argc--;
845 argv++;
846 }
847 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */
848 operand = NULL;
849 } else {
850 argc--;
851 *new_argp++ = operand = *argv++;
852 }
853 while (argc-- > 0) /* Copy over [argument...] */
854 *new_argp++ = *argv++;
855 *new_argp = NULL;
856
857 /*
858 * If there is a jar file, read the manifest. If the jarfile can't be
859 * read, the manifest can't be read from the jar file, or the manifest
860 * is corrupt, issue the appropriate error messages and exit.
861 *
862 * Even if there isn't a jar file, construct a manifest_info structure
863 * containing the command line information. It's a convenient way to carry
864 * this data around.
865 */
866 if (jarflag && operand) {
867 if ((res = JLI_ParseManifest(operand, &info)) != 0) {
868 if (res == -1)
869 JLI_ReportErrorMessage(JAR_ERROR2, operand);
870 else
871 JLI_ReportErrorMessage(JAR_ERROR3, operand);
872 exit(1);
873 }
874
875 /*
876 * Command line splash screen option should have precedence
877 * over the manifest, so the manifest data is used only if
878 * splash_file_name has not been initialized above during command
879 * line parsing
880 */
881 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) {
882 splash_file_name = info.splashscreen_image_file_name;
883 splash_jar_name = operand;
884 }
885 } else {
886 info.manifest_version = NULL;
887 info.main_class = NULL;
888 info.jre_version = NULL;
889 info.jre_restrict_search = 0;
890 }
891
892 /*
893 * Passing on splash screen info in environment variables
894 */
895 if (splash_file_name && !headlessflag) {
896 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1);
897 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
898 JLI_StrCat(splash_file_entry, splash_file_name);
899 putenv(splash_file_entry);
900 }
901 if (splash_jar_name && !headlessflag) {
902 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1);
903 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
904 JLI_StrCat(splash_jar_entry, splash_jar_name);
905 putenv(splash_jar_entry);
906 }
907
908 /*
909 * The JRE-Version and JRE-Restrict-Search values (if any) from the
910 * manifest are overwritten by any specified on the command line.
911 */
912 if (version != NULL)
913 info.jre_version = version;
914 if (restrict_search != -1)
915 info.jre_restrict_search = restrict_search;
916
917 /*
918 * "Valid" returns (other than unrecoverable errors) follow. Set
919 * main_class as a side-effect of this routine.
920 */
921 if (info.main_class != NULL)
922 *main_class = JLI_StringDup(info.main_class);
923
924 /*
925 * If no version selection information is found either on the command
926 * line or in the manifest, simply return.
927 */
928 if (info.jre_version == NULL) {
929 JLI_FreeManifest();
930 JLI_MemFree(new_argv);
931 return;
932 }
933
934 /*
935 * Check for correct syntax of the version specification (JSR 56).
936 */
937 if (!JLI_ValidVersionString(info.jre_version)) {
938 JLI_ReportErrorMessage(SPC_ERROR1, info.jre_version);
939 exit(1);
940 }
941
942 /*
943 * Find the appropriate JVM on the system. Just to be as forgiving as
944 * possible, if the standard algorithms don't locate an appropriate
945 * jre, check to see if the one running will satisfy the requirements.
946 * This can happen on systems which haven't been set-up for multiple
947 * JRE support.
948 */
949 jre = LocateJRE(&info);
950 JLI_TraceLauncher("JRE-Version = %s, JRE-Restrict-Search = %s Selected = %s\n",
951 (info.jre_version?info.jre_version:"null"),
952 (info.jre_restrict_search?"true":"false"), (jre?jre:"null"));
953
954 if (jre == NULL) {
955 if (JLI_AcceptableRelease(GetFullVersion(), info.jre_version)) {
956 JLI_FreeManifest();
957 JLI_MemFree(new_argv);
958 return;
959 } else {
960 JLI_ReportErrorMessage(CFG_ERROR4, info.jre_version);
961 exit(1);
962 }
963 }
964
965 /*
966 * If I'm not the chosen one, exec the chosen one. Returning from
967 * ExecJRE indicates that I am indeed the chosen one.
968 *
969 * The private environment variable _JAVA_VERSION_SET is used to
970 * prevent the chosen one from re-reading the manifest file and
971 * using the values found within to override the (potential) command
972 * line flags stripped from argv (because the target may not
973 * understand them). Passing the MainClass value is an optimization
974 * to avoid locating, expanding and parsing the manifest extra
975 * times.
976 */
977 if (info.main_class != NULL) {
978 if (JLI_StrLen(info.main_class) <= MAXNAMELEN) {
979 (void)JLI_StrCat(env_entry, info.main_class);
980 } else {
981 JLI_ReportErrorMessage(CLS_ERROR5, MAXNAMELEN);
982 exit(1);
983 }
984 }
985 (void)putenv(env_entry);
986 ExecJRE(jre, new_argv);
987 JLI_FreeManifest();
988 JLI_MemFree(new_argv);
989 return;
990 }
991
992 /*
993 * Parses command line arguments. Returns JNI_FALSE if launcher
994 * should exit without starting vm, returns JNI_TRUE if vm needs
995 * to be started to process given options. *pret (the launcher
996 * process return value) is set to 0 for a normal exit.
997 */
998 static jboolean
999 ParseArguments(int *pargc, char ***pargv,
1000 int *pmode, char **pwhat,
1001 int *pret, const char *jrepath)
1002 {
1003 int argc = *pargc;
1004 char **argv = *pargv;
1005 int mode = LM_UNKNOWN;
1006 char *arg;
1007
1008 *pret = 0;
1009
1010 while ((arg = *argv) != 0 && *arg == '-') {
1011 argv++; --argc;
1012 if (JLI_StrCmp(arg, "-classpath") == 0 || JLI_StrCmp(arg, "-cp") == 0) {
1013 ARG_CHECK (argc, ARG_ERROR1, arg);
1014 SetClassPath(*argv);
1015 mode = LM_CLASS;
1016 argv++; --argc;
1017 } else if (JLI_StrCmp(arg, "-jar") == 0) {
1018 ARG_CHECK (argc, ARG_ERROR2, arg);
1019 mode = LM_JAR;
1020 } else if (JLI_StrCmp(arg, "-help") == 0 ||
1021 JLI_StrCmp(arg, "-h") == 0 ||
1022 JLI_StrCmp(arg, "-?") == 0) {
1023 printUsage = JNI_TRUE;
1024 return JNI_TRUE;
1025 } else if (JLI_StrCmp(arg, "-version") == 0) {
1026 printVersion = JNI_TRUE;
1027 return JNI_TRUE;
1028 } else if (JLI_StrCmp(arg, "-showversion") == 0) {
1029 showVersion = JNI_TRUE;
1030 } else if (JLI_StrCmp(arg, "-X") == 0) {
1031 printXUsage = JNI_TRUE;
1032 return JNI_TRUE;
1033 /*
1034 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT.
1035 * In the latter case, any SUBOPT value not recognized will default to "all"
1036 */
1037 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 ||
1038 JLI_StrCCmp(arg, "-XshowSettings:") == 0) {
1039 showSettings = arg;
1040 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) {
1041 AddOption("-Dsun.java.launcher.diag=true", NULL);
1042 /*
1043 * The following case provide backward compatibility with old-style
1044 * command line options.
1045 */
1046 } else if (JLI_StrCmp(arg, "-fullversion") == 0) {
1047 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion());
1048 return JNI_FALSE;
1049 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) {
1050 AddOption("-verbose:gc", NULL);
1051 } else if (JLI_StrCmp(arg, "-t") == 0) {
1052 AddOption("-Xt", NULL);
1053 } else if (JLI_StrCmp(arg, "-tm") == 0) {
1054 AddOption("-Xtm", NULL);
1055 } else if (JLI_StrCmp(arg, "-debug") == 0) {
1056 AddOption("-Xdebug", NULL);
1057 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) {
1058 AddOption("-Xnoclassgc", NULL);
1059 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) {
1060 AddOption("-Xverify:all", NULL);
1061 } else if (JLI_StrCmp(arg, "-verify") == 0) {
1062 AddOption("-Xverify:all", NULL);
1063 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) {
1064 AddOption("-Xverify:remote", NULL);
1065 } else if (JLI_StrCmp(arg, "-noverify") == 0) {
1066 AddOption("-Xverify:none", NULL);
1067 } else if (JLI_StrCCmp(arg, "-prof") == 0) {
1068 char *p = arg + 5;
1069 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 50);
1070 if (*p) {
1071 sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1);
1072 } else {
1073 sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof");
1074 }
1075 AddOption(tmp, NULL);
1076 } else if (JLI_StrCCmp(arg, "-ss") == 0 ||
1077 JLI_StrCCmp(arg, "-oss") == 0 ||
1078 JLI_StrCCmp(arg, "-ms") == 0 ||
1079 JLI_StrCCmp(arg, "-mx") == 0) {
1080 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6);
1081 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */
1082 AddOption(tmp, NULL);
1083 } else if (JLI_StrCmp(arg, "-checksource") == 0 ||
1084 JLI_StrCmp(arg, "-cs") == 0 ||
1085 JLI_StrCmp(arg, "-noasyncgc") == 0) {
1086 /* No longer supported */
1087 JLI_ReportErrorMessage(ARG_WARN, arg);
1088 } else if (JLI_StrCCmp(arg, "-version:") == 0 ||
1089 JLI_StrCmp(arg, "-no-jre-restrict-search") == 0 ||
1090 JLI_StrCmp(arg, "-jre-restrict-search") == 0 ||
1091 JLI_StrCCmp(arg, "-splash:") == 0) {
1092 ; /* Ignore machine independent options already handled */
1093 } else if (ProcessPlatformOption(arg)) {
1094 ; /* Processing of platform dependent options */
1095 } else if (RemovableOption(arg)) {
1096 ; /* Do not pass option to vm. */
1097 } else {
1098 AddOption(arg, NULL);
1099 }
1100 }
1101
1102 if (--argc >= 0) {
1103 *pwhat = *argv++;
1104 }
1105
1106 if (*pwhat == NULL) {
1107 *pret = 1;
1108 } else if (mode == LM_UNKNOWN) {
1109 /* default to LM_CLASS if -jar and -cp option are
1110 * not specified */
1111 mode = LM_CLASS;
1112 }
1113
1114 if (argc >= 0) {
1115 *pargc = argc;
1116 *pargv = argv;
1117 }
1118
1119 *pmode = mode;
1120
1121 return JNI_TRUE;
1122 }
1123
1124 /*
1125 * Initializes the Java Virtual Machine. Also frees options array when
1126 * finished.
1127 */
1128 static jboolean
1129 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1130 {
1131 JavaVMInitArgs args;
1132 jint r;
1133
1134 memset(&args, 0, sizeof(args));
1135 args.version = JNI_VERSION_1_2;
1136 args.nOptions = numOptions;
1137 args.options = options;
1138 args.ignoreUnrecognized = JNI_FALSE;
1139
1140 if (JLI_IsTraceLauncher()) {
1141 int i = 0;
1142 printf("JavaVM args:\n ");
1143 printf("version 0x%08lx, ", (long)args.version);
1144 printf("ignoreUnrecognized is %s, ",
1145 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1146 printf("nOptions is %ld\n", (long)args.nOptions);
1147 for (i = 0; i < numOptions; i++)
1148 printf(" option[%2d] = '%s'\n",
1149 i, args.options[i].optionString);
1150 }
1151
1152 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1153 JLI_MemFree(options);
1154 return r == JNI_OK;
1155 }
1156
1157 static jclass helperClass = NULL;
1158
1159 jclass
1160 GetLauncherHelperClass(JNIEnv *env)
1161 {
1162 if (helperClass == NULL) {
1163 NULL_CHECK0(helperClass = FindBootStrapClass(env,
1164 "sun/launcher/LauncherHelper"));
1165 }
1166 return helperClass;
1167 }
1168
1169 static jmethodID makePlatformStringMID = NULL;
1170 /*
1171 * Returns a new Java string object for the specified platform string.
1172 */
1173 static jstring
1174 NewPlatformString(JNIEnv *env, char *s)
1175 {
1176 int len = (int)JLI_StrLen(s);
1177 jbyteArray ary;
1178 jclass cls = GetLauncherHelperClass(env);
1179 NULL_CHECK0(cls);
1180 if (s == NULL)
1181 return 0;
1182
1183 ary = (*env)->NewByteArray(env, len);
1184 if (ary != 0) {
1185 jstring str = 0;
1186 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1187 if (!(*env)->ExceptionOccurred(env)) {
1188 if (makePlatformStringMID == NULL) {
1189 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env,
1190 cls, "makePlatformString", "(Z[B)Ljava/lang/String;"));
1191 }
1192 str = (*env)->CallStaticObjectMethod(env, cls,
1193 makePlatformStringMID, USE_STDERR, ary);
1194 (*env)->DeleteLocalRef(env, ary);
1195 return str;
1196 }
1197 }
1198 return 0;
1199 }
1200
1201 /*
1202 * Returns a new array of Java string objects for the specified
1203 * array of platform strings.
1204 */
1205 jobjectArray
1206 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1207 {
1208 jarray cls;
1209 jarray ary;
1210 int i;
1211
1212 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String"));
1213 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1214 for (i = 0; i < strc; i++) {
1215 jstring str = NewPlatformString(env, *strv++);
1216 NULL_CHECK0(str);
1217 (*env)->SetObjectArrayElement(env, ary, i, str);
1218 (*env)->DeleteLocalRef(env, str);
1219 }
1220 return ary;
1221 }
1222
1223 /*
1224 * Loads a class and verifies that the main class is present and it is ok to
1225 * call it for more details refer to the java implementation.
1226 */
1227 static jclass
1228 LoadMainClass(JNIEnv *env, int mode, char *name)
1229 {
1230 jmethodID mid;
1231 jstring str;
1232 jobject result;
1233 jlong start, end;
1234 jclass cls = GetLauncherHelperClass(env);
1235 NULL_CHECK0(cls);
1236 if (JLI_IsTraceLauncher()) {
1237 start = CounterGet();
1238 }
1239 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1240 "checkAndLoadMain",
1241 "(ZILjava/lang/String;)Ljava/lang/Class;"));
1242
1243 NULL_CHECK0(str = NewPlatformString(env, name));
1244 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid,
1245 USE_STDERR, mode, str));
1246
1247 if (JLI_IsTraceLauncher()) {
1248 end = CounterGet();
1249 printf("%ld micro seconds to load main class\n",
1250 (long)(jint)Counter2Micros(end-start));
1251 printf("----%s----\n", JLDEBUG_ENV_ENTRY);
1252 }
1253
1254 return (jclass)result;
1255 }
1256
1257 static jclass
1258 GetApplicationClass(JNIEnv *env)
1259 {
1260 jmethodID mid;
1261 jclass cls = GetLauncherHelperClass(env);
1262 NULL_CHECK0(cls);
1263 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1264 "getApplicationClass",
1265 "()Ljava/lang/Class;"));
1266
1267 return (*env)->CallStaticObjectMethod(env, cls, mid);
1268 }
1269
1270 /*
1271 * For tools, convert command line args thus:
1272 * javac -cp foo:foo/"*" -J-ms32m ...
1273 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1274 *
1275 * Takes 4 parameters, and returns the populated arguments
1276 */
1277 static void
1278 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv)
1279 {
1280 int argc = *pargc;
1281 char **argv = *pargv;
1282 int nargc = argc + jargc;
1283 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1284 int i;
1285
1286 *pargc = nargc;
1287 *pargv = nargv;
1288
1289 /* Copy the VM arguments (i.e. prefixed with -J) */
1290 for (i = 0; i < jargc; i++) {
1291 const char *arg = jargv[i];
1292 if (arg[0] == '-' && arg[1] == 'J') {
1293 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2);
1294 }
1295 }
1296
1297 for (i = 0; i < argc; i++) {
1298 char *arg = argv[i];
1299 if (arg[0] == '-' && arg[1] == 'J') {
1300 if (arg[2] == '\0') {
1301 JLI_ReportErrorMessage(ARG_ERROR3);
1302 exit(1);
1303 }
1304 *nargv++ = arg + 2;
1305 }
1306 }
1307
1308 /* Copy the rest of the arguments */
1309 for (i = 0; i < jargc ; i++) {
1310 const char *arg = jargv[i];
1311 if (arg[0] != '-' || arg[1] != 'J') {
1312 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg);
1313 }
1314 }
1315 for (i = 0; i < argc; i++) {
1316 char *arg = argv[i];
1317 if (arg[0] == '-') {
1318 if (arg[1] == 'J')
1319 continue;
1320 if (IsWildCardEnabled() && arg[1] == 'c'
1321 && (JLI_StrCmp(arg, "-cp") == 0 ||
1322 JLI_StrCmp(arg, "-classpath") == 0)
1323 && i < argc - 1) {
1324 *nargv++ = arg;
1325 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1326 i++;
1327 continue;
1328 }
1329 }
1330 *nargv++ = arg;
1331 }
1332 *nargv = 0;
1333 }
1334
1335 /*
1336 * For our tools, we try to add 3 VM options:
1337 * -Denv.class.path=<envcp>
1338 * -Dapplication.home=<apphome>
1339 * -Djava.class.path=<appcp>
1340 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1341 * tells javac where to find binary classes through this environment
1342 * variable. Notice that users will be able to compile against our
1343 * tools classes (sun.tools.javac.Main) only if they explicitly add
1344 * tools.jar to CLASSPATH.
1345 * <apphome> is the directory where the application is installed.
1346 * <appcp> is the classpath to where our apps' classfiles are.
1347 */
1348 static jboolean
1349 AddApplicationOptions(int cpathc, const char **cpathv)
1350 {
1351 char *envcp, *appcp, *apphome;
1352 char home[MAXPATHLEN]; /* application home */
1353 char separator[] = { PATH_SEPARATOR, '\0' };
1354 int size, i;
1355
1356 {
1357 const char *s = getenv("CLASSPATH");
1358 if (s) {
1359 s = (char *) JLI_WildcardExpandClasspath(s);
1360 /* 40 for -Denv.class.path= */
1361 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40);
1362 sprintf(envcp, "-Denv.class.path=%s", s);
1363 AddOption(envcp, NULL);
1364 }
1365 }
1366
1367 if (!GetApplicationHome(home, sizeof(home))) {
1368 JLI_ReportErrorMessage(CFG_ERROR5);
1369 return JNI_FALSE;
1370 }
1371
1372 /* 40 for '-Dapplication.home=' */
1373 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40);
1374 sprintf(apphome, "-Dapplication.home=%s", home);
1375 AddOption(apphome, NULL);
1376
1377 /* How big is the application's classpath? */
1378 size = 40; /* 40: "-Djava.class.path=" */
1379 for (i = 0; i < cpathc; i++) {
1380 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */
1381 }
1382 appcp = (char *)JLI_MemAlloc(size + 1);
1383 JLI_StrCpy(appcp, "-Djava.class.path=");
1384 for (i = 0; i < cpathc; i++) {
1385 JLI_StrCat(appcp, home); /* c:\program files\myapp */
1386 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */
1387 JLI_StrCat(appcp, separator); /* ; */
1388 }
1389 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */
1390 AddOption(appcp, NULL);
1391 return JNI_TRUE;
1392 }
1393
1394 /*
1395 * inject the -Dsun.java.command pseudo property into the args structure
1396 * this pseudo property is used in the HotSpot VM to expose the
1397 * Java class name and arguments to the main method to the VM. The
1398 * HotSpot VM uses this pseudo property to store the Java class name
1399 * (or jar file name) and the arguments to the class's main method
1400 * to the instrumentation memory region. The sun.java.command pseudo
1401 * property is not exported by HotSpot to the Java layer.
1402 */
1403 void
1404 SetJavaCommandLineProp(char *what, int argc, char **argv)
1405 {
1406
1407 int i = 0;
1408 size_t len = 0;
1409 char* javaCommand = NULL;
1410 char* dashDstr = "-Dsun.java.command=";
1411
1412 if (what == NULL) {
1413 /* unexpected, one of these should be set. just return without
1414 * setting the property
1415 */
1416 return;
1417 }
1418
1419 /* determine the amount of memory to allocate assuming
1420 * the individual components will be space separated
1421 */
1422 len = JLI_StrLen(what);
1423 for (i = 0; i < argc; i++) {
1424 len += JLI_StrLen(argv[i]) + 1;
1425 }
1426
1427 /* allocate the memory */
1428 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1);
1429
1430 /* build the -D string */
1431 *javaCommand = '\0';
1432 JLI_StrCat(javaCommand, dashDstr);
1433 JLI_StrCat(javaCommand, what);
1434
1435 for (i = 0; i < argc; i++) {
1436 /* the components of the string are space separated. In
1437 * the case of embedded white space, the relationship of
1438 * the white space separated components to their true
1439 * positional arguments will be ambiguous. This issue may
1440 * be addressed in a future release.
1441 */
1442 JLI_StrCat(javaCommand, " ");
1443 JLI_StrCat(javaCommand, argv[i]);
1444 }
1445
1446 AddOption(javaCommand, NULL);
1447 }
1448
1449 /*
1450 * JVM would like to know if it's created by a standard Sun launcher, or by
1451 * user native application, the following property indicates the former.
1452 */
1453 void
1454 SetJavaLauncherProp() {
1455 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL);
1456 }
1457
1458 /*
1459 * Prints the version information from the java.version and other properties.
1460 */
1461 static void
1462 PrintJavaVersion(JNIEnv *env, jboolean extraLF)
1463 {
1464 jclass ver;
1465 jmethodID print;
1466
1467 NULL_CHECK(ver = FindBootStrapClass(env, "sun/misc/Version"));
1468 NULL_CHECK(print = (*env)->GetStaticMethodID(env,
1469 ver,
1470 (extraLF == JNI_TRUE) ? "println" : "print",
1471 "()V"
1472 )
1473 );
1474
1475 (*env)->CallStaticVoidMethod(env, ver, print);
1476 }
1477
1478 /*
1479 * Prints all the Java settings, see the java implementation for more details.
1480 */
1481 static void
1482 ShowSettings(JNIEnv *env, char *optString)
1483 {
1484 jmethodID showSettingsID;
1485 jstring joptString;
1486 jclass cls = GetLauncherHelperClass(env);
1487 NULL_CHECK(cls);
1488 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls,
1489 "showSettings", "(ZLjava/lang/String;JJJZ)V"));
1490 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1491 (*env)->CallStaticVoidMethod(env, cls, showSettingsID,
1492 USE_STDERR,
1493 joptString,
1494 (jlong)initialHeapSize,
1495 (jlong)maxHeapSize,
1496 (jlong)threadStackSize,
1497 ServerClassMachine());
1498 }
1499
1500 /*
1501 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java
1502 */
1503 static void
1504 PrintUsage(JNIEnv* env, jboolean doXUsage)
1505 {
1506 jmethodID initHelp, vmSelect, vmSynonym, vmErgo, printHelp, printXUsageMessage;
1507 jstring jprogname, vm1, vm2;
1508 int i;
1509 jclass cls = GetLauncherHelperClass(env);
1510 NULL_CHECK(cls);
1511 if (doXUsage) {
1512 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls,
1513 "printXUsageMessage", "(Z)V"));
1514 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, USE_STDERR);
1515 } else {
1516 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls,
1517 "initHelpMessage", "(Ljava/lang/String;)V"));
1518
1519 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage",
1520 "(Ljava/lang/String;Ljava/lang/String;)V"));
1521
1522 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls,
1523 "appendVmSynonymMessage",
1524 "(Ljava/lang/String;Ljava/lang/String;)V"));
1525 NULL_CHECK(vmErgo = (*env)->GetStaticMethodID(env, cls,
1526 "appendVmErgoMessage", "(ZLjava/lang/String;)V"));
1527
1528 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls,
1529 "printHelpMessage", "(Z)V"));
1530
1531 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name));
1532
1533 /* Initialize the usage message with the usual preamble */
1534 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname);
1535 CHECK_EXCEPTION_RETURN();
1536
1537
1538 /* Assemble the other variant part of the usage */
1539 if ((knownVMs[0].flag == VM_KNOWN) ||
1540 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) {
1541 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[0].name));
1542 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[0].name+1));
1543 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
1544 CHECK_EXCEPTION_RETURN();
1545 }
1546 for (i=1; i<knownVMsCount; i++) {
1547 if (knownVMs[i].flag == VM_KNOWN) {
1548 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1549 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1));
1550 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
1551 CHECK_EXCEPTION_RETURN();
1552 }
1553 }
1554 for (i=1; i<knownVMsCount; i++) {
1555 if (knownVMs[i].flag == VM_ALIASED_TO) {
1556 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1557 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1));
1558 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2);
1559 CHECK_EXCEPTION_RETURN();
1560 }
1561 }
1562
1563 /* The first known VM is the default */
1564 {
1565 jboolean isServerClassMachine = ServerClassMachine();
1566
1567 const char* defaultVM = knownVMs[0].name+1;
1568 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && isServerClassMachine) {
1569 defaultVM = knownVMs[0].server_class+1;
1570 }
1571
1572 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, defaultVM));
1573 (*env)->CallStaticVoidMethod(env, cls, vmErgo, isServerClassMachine, vm1);
1574 CHECK_EXCEPTION_RETURN();
1575 }
1576
1577 /* Complete the usage message and print to stderr*/
1578 (*env)->CallStaticVoidMethod(env, cls, printHelp, USE_STDERR);
1579 }
1580 return;
1581 }
1582
1583 /*
1584 * Read the jvm.cfg file and fill the knownJVMs[] array.
1585 *
1586 * The functionality of the jvm.cfg file is subject to change without
1587 * notice and the mechanism will be removed in the future.
1588 *
1589 * The lexical structure of the jvm.cfg file is as follows:
1590 *
1591 * jvmcfg := { vmLine }
1592 * vmLine := knownLine
1593 * | aliasLine
1594 * | warnLine
1595 * | ignoreLine
1596 * | errorLine
1597 * | predicateLine
1598 * | commentLine
1599 * knownLine := flag "KNOWN" EOL
1600 * warnLine := flag "WARN" EOL
1601 * ignoreLine := flag "IGNORE" EOL
1602 * errorLine := flag "ERROR" EOL
1603 * aliasLine := flag "ALIASED_TO" flag EOL
1604 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
1605 * commentLine := "#" text EOL
1606 * flag := "-" identifier
1607 *
1608 * The semantics are that when someone specifies a flag on the command line:
1609 * - if the flag appears on a knownLine, then the identifier is used as
1610 * the name of the directory holding the JVM library (the name of the JVM).
1611 * - if the flag appears as the first flag on an aliasLine, the identifier
1612 * of the second flag is used as the name of the JVM.
1613 * - if the flag appears on a warnLine, the identifier is used as the
1614 * name of the JVM, but a warning is generated.
1615 * - if the flag appears on an ignoreLine, the identifier is recognized as the
1616 * name of a JVM, but the identifier is ignored and the default vm used
1617 * - if the flag appears on an errorLine, an error is generated.
1618 * - if the flag appears as the first flag on a predicateLine, and
1619 * the machine on which you are running passes the predicate indicated,
1620 * then the identifier of the second flag is used as the name of the JVM,
1621 * otherwise the identifier of the first flag is used as the name of the JVM.
1622 * If no flag is given on the command line, the first vmLine of the jvm.cfg
1623 * file determines the name of the JVM.
1624 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
1625 * since they only make sense if someone hasn't specified the name of the
1626 * JVM on the command line.
1627 *
1628 * The intent of the jvm.cfg file is to allow several JVM libraries to
1629 * be installed in different subdirectories of a single JRE installation,
1630 * for space-savings and convenience in testing.
1631 * The intent is explicitly not to provide a full aliasing or predicate
1632 * mechanism.
1633 */
1634 jint
1635 ReadKnownVMs(const char *jvmCfgName, jboolean speculative)
1636 {
1637 FILE *jvmCfg;
1638 char line[MAXPATHLEN+20];
1639 int cnt = 0;
1640 int lineno = 0;
1641 jlong start, end;
1642 int vmType;
1643 char *tmpPtr;
1644 char *altVMName = NULL;
1645 char *serverClassVMName = NULL;
1646 static char *whiteSpace = " \t";
1647 if (JLI_IsTraceLauncher()) {
1648 start = CounterGet();
1649 }
1650
1651 jvmCfg = fopen(jvmCfgName, "r");
1652 if (jvmCfg == NULL) {
1653 if (!speculative) {
1654 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName);
1655 exit(1);
1656 } else {
1657 return -1;
1658 }
1659 }
1660 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
1661 vmType = VM_UNKNOWN;
1662 lineno++;
1663 if (line[0] == '#')
1664 continue;
1665 if (line[0] != '-') {
1666 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName);
1667 }
1668 if (cnt >= knownVMsLimit) {
1669 GrowKnownVMs(cnt);
1670 }
1671 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */
1672 tmpPtr = line + JLI_StrCSpn(line, whiteSpace);
1673 if (*tmpPtr == 0) {
1674 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
1675 } else {
1676 /* Null-terminate this string for JLI_StringDup below */
1677 *tmpPtr++ = 0;
1678 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
1679 if (*tmpPtr == 0) {
1680 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
1681 } else {
1682 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) {
1683 vmType = VM_KNOWN;
1684 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) {
1685 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
1686 if (*tmpPtr != 0) {
1687 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
1688 }
1689 if (*tmpPtr == 0) {
1690 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
1691 } else {
1692 /* Null terminate altVMName */
1693 altVMName = tmpPtr;
1694 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
1695 *tmpPtr = 0;
1696 vmType = VM_ALIASED_TO;
1697 }
1698 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) {
1699 vmType = VM_WARN;
1700 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) {
1701 vmType = VM_IGNORE;
1702 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) {
1703 vmType = VM_ERROR;
1704 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) {
1705 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
1706 if (*tmpPtr != 0) {
1707 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
1708 }
1709 if (*tmpPtr == 0) {
1710 JLI_ReportErrorMessage(CFG_WARN4, lineno, jvmCfgName);
1711 } else {
1712 /* Null terminate server class VM name */
1713 serverClassVMName = tmpPtr;
1714 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
1715 *tmpPtr = 0;
1716 vmType = VM_IF_SERVER_CLASS;
1717 }
1718 } else {
1719 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]);
1720 vmType = VM_KNOWN;
1721 }
1722 }
1723 }
1724
1725 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line);
1726 if (vmType != VM_UNKNOWN) {
1727 knownVMs[cnt].name = JLI_StringDup(line);
1728 knownVMs[cnt].flag = vmType;
1729 switch (vmType) {
1730 default:
1731 break;
1732 case VM_ALIASED_TO:
1733 knownVMs[cnt].alias = JLI_StringDup(altVMName);
1734 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n",
1735 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
1736 break;
1737 case VM_IF_SERVER_CLASS:
1738 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName);
1739 JLI_TraceLauncher(" name: %s vmType: %s server_class: %s\n",
1740 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class);
1741 break;
1742 }
1743 cnt++;
1744 }
1745 }
1746 fclose(jvmCfg);
1747 knownVMsCount = cnt;
1748
1749 if (JLI_IsTraceLauncher()) {
1750 end = CounterGet();
1751 printf("%ld micro seconds to parse jvm.cfg\n",
1752 (long)(jint)Counter2Micros(end-start));
1753 }
1754
1755 return cnt;
1756 }
1757
1758
1759 static void
1760 GrowKnownVMs(int minimum)
1761 {
1762 struct vmdesc* newKnownVMs;
1763 int newMax;
1764
1765 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
1766 if (newMax <= minimum) {
1767 newMax = minimum;
1768 }
1769 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
1770 if (knownVMs != NULL) {
1771 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
1772 }
1773 JLI_MemFree(knownVMs);
1774 knownVMs = newKnownVMs;
1775 knownVMsLimit = newMax;
1776 }
1777
1778
1779 /* Returns index of VM or -1 if not found */
1780 static int
1781 KnownVMIndex(const char* name)
1782 {
1783 int i;
1784 if (JLI_StrCCmp(name, "-J") == 0) name += 2;
1785 for (i = 0; i < knownVMsCount; i++) {
1786 if (!JLI_StrCmp(name, knownVMs[i].name)) {
1787 return i;
1788 }
1789 }
1790 return -1;
1791 }
1792
1793 static void
1794 FreeKnownVMs()
1795 {
1796 int i;
1797 for (i = 0; i < knownVMsCount; i++) {
1798 JLI_MemFree(knownVMs[i].name);
1799 knownVMs[i].name = NULL;
1800 }
1801 JLI_MemFree(knownVMs);
1802 }
1803
1804 /*
1805 * Displays the splash screen according to the jar file name
1806 * and image file names stored in environment variables
1807 */
1808 void
1809 ShowSplashScreen()
1810 {
1811 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
1812 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
1813 int data_size;
1814 void *image_data;
1815 if (jar_name) {
1816 image_data = JLI_JarUnpackFile(jar_name, file_name, &data_size);
1817 if (image_data) {
1818 DoSplashInit();
1819 DoSplashLoadMemory(image_data, data_size);
1820 JLI_MemFree(image_data);
1821 }
1822 } else if (file_name) {
1823 DoSplashInit();
1824 DoSplashLoadFile(file_name);
1825 } else {
1826 return;
1827 }
1828 DoSplashSetFileJarName(file_name, jar_name);
1829
1830 /*
1831 * Done with all command line processing and potential re-execs so
1832 * clean up the environment.
1833 */
1834 (void)UnsetEnv(ENV_ENTRY);
1835 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
1836 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
1837
1838 JLI_MemFree(splash_jar_entry);
1839 JLI_MemFree(splash_file_entry);
1840
1841 }
1842
1843 const char*
1844 GetDotVersion()
1845 {
1846 return _dVersion;
1847 }
1848
1849 const char*
1850 GetFullVersion()
1851 {
1852 return _fVersion;
1853 }
1854
1855 const char*
1856 GetProgramName()
1857 {
1858 return _program_name;
1859 }
1860
1861 const char*
1862 GetLauncherName()
1863 {
1864 return _launcher_name;
1865 }
1866
1867 jint
1868 GetErgoPolicy()
1869 {
1870 return _ergo_policy;
1871 }
1872
1873 jboolean
1874 IsJavaArgs()
1875 {
1876 return _is_java_args;
1877 }
1878
1879 static jboolean
1880 IsWildCardEnabled()
1881 {
1882 return _wc_enabled;
1883 }
1884
1885 int
1886 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize,
1887 int argc, char **argv,
1888 int mode, char *what, int ret)
1889 {
1890
1891 /*
1892 * If user doesn't specify stack size, check if VM has a preference.
1893 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
1894 * return its default stack size through the init args structure.
1895 */
1896 if (threadStackSize == 0) {
1897 struct JDK1_1InitArgs args1_1;
1898 memset((void*)&args1_1, 0, sizeof(args1_1));
1899 args1_1.version = JNI_VERSION_1_1;
1900 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
1901 if (args1_1.javaStackSize > 0) {
1902 threadStackSize = args1_1.javaStackSize;
1903 }
1904 }
1905
1906 { /* Create a new thread to create JVM and invoke main method */
1907 JavaMainArgs args;
1908 int rslt;
1909
1910 args.argc = argc;
1911 args.argv = argv;
1912 args.mode = mode;
1913 args.what = what;
1914 args.ifn = *ifn;
1915
1916 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args);
1917 /* If the caller has deemed there is an error we
1918 * simply return that, otherwise we return the value of
1919 * the callee
1920 */
1921 return (ret != 0) ? ret : rslt;
1922 }
1923 }
1924
1925 static void
1926 DumpState()
1927 {
1928 if (!JLI_IsTraceLauncher()) return ;
1929 printf("Launcher state:\n");
1930 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off");
1931 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off");
1932 printf("\tprogram name:%s\n", GetProgramName());
1933 printf("\tlauncher name:%s\n", GetLauncherName());
1934 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off");
1935 printf("\tfullversion:%s\n", GetFullVersion());
1936 printf("\tdotversion:%s\n", GetDotVersion());
1937 printf("\tergo_policy:");
1938 switch(GetErgoPolicy()) {
1939 case NEVER_SERVER_CLASS:
1940 printf("NEVER_ACT_AS_A_SERVER_CLASS_MACHINE\n");
1941 break;
1942 case ALWAYS_SERVER_CLASS:
1943 printf("ALWAYS_ACT_AS_A_SERVER_CLASS_MACHINE\n");
1944 break;
1945 default:
1946 printf("DEFAULT_ERGONOMICS_POLICY\n");
1947 }
1948 }
1949
1950 /*
1951 * Return JNI_TRUE for an option string that has no effect but should
1952 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On
1953 * Solaris SPARC, this screening needs to be done if:
1954 * -d32 or -d64 is passed to a binary with an unmatched data model
1955 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the
1956 * exec to the proper binary). In the case of when the data model and the
1957 * requested version is matched, an exec would not occur, and these options
1958 * were erroneously passed to the vm.
1959 */
1960 jboolean
1961 RemovableOption(char * option)
1962 {
1963 /*
1964 * Unconditionally remove both -d32 and -d64 options since only
1965 * the last such options has an effect; e.g.
1966 * java -d32 -d64 -d32 -version
1967 * is equivalent to
1968 * java -d32 -version
1969 */
1970
1971 if( (JLI_StrCCmp(option, "-d32") == 0 ) ||
1972 (JLI_StrCCmp(option, "-d64") == 0 ) )
1973 return JNI_TRUE;
1974 else
1975 return JNI_FALSE;
1976 }
1977
1978 /*
1979 * A utility procedure to always print to stderr
1980 */
1981 void
1982 JLI_ReportMessage(const char* fmt, ...)
1983 {
1984 va_list vl;
1985 va_start(vl, fmt);
1986 vfprintf(stderr, fmt, vl);
1987 fprintf(stderr, "\n");
1988 va_end(vl);
1989 }