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comparison src/share/tools/launcher/java.c @ 1985:cb2d0a362639

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6981484: Update development launcher Summary: Add new development launcher called hotspot(.exe) Reviewed-by: coleenp
author sla
date Thu, 02 Dec 2010 05:45:54 -0800
parents
children aa6e219afbf1
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1984:2968675b413e 1985:cb2d0a362639
1 /*
2 * Copyright (c) 1999, 2010, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 /*
26 * Gamma (Hotspot internal engineering test) launcher based on 6.0u22 JDK,
27 * search "GAMMA" for gamma specific changes.
28 *
29 * GAMMA: gamma launcher is much simpler than regular java launcher in that
30 * JVM is either statically linked in or it is installed in the
31 * same directory where the launcher exists, so we don't have to
32 * worry about choosing the right JVM based on command line flag, jar
33 * file and/or ergonomics. Intead of removing unused logic from source
34 * they are commented out with #ifndef GAMMA, hopefully it'll be easier
35 * to maintain this file in sync with regular JDK launcher.
36 */
37
38 /*
39 * Shared source for 'java' command line tool.
40 *
41 * If JAVA_ARGS is defined, then acts as a launcher for applications. For
42 * instance, the JDK command line tools such as javac and javadoc (see
43 * makefiles for more details) are built with this program. Any arguments
44 * prefixed with '-J' will be passed directly to the 'java' command.
45 */
46
47 #ifdef GAMMA
48 # ifdef JAVA_ARGS
49 # error Do NOT define JAVA_ARGS when building gamma launcher
50 # endif
51 # if !defined(LINK_INTO_AOUT) && !defined(LINK_INTO_LIBJVM)
52 # error Either LINK_INTO_AOUT or LINK_INTO_LIBJVM must be defined
53 # endif
54 #endif
55
56 /*
57 * One job of the launcher is to remove command line options which the
58 * vm does not understand and will not process. These options include
59 * options which select which style of vm is run (e.g. -client and
60 * -server) as well as options which select the data model to use.
61 * Additionally, for tools which invoke an underlying vm "-J-foo"
62 * options are turned into "-foo" options to the vm. This option
63 * filtering is handled in a number of places in the launcher, some of
64 * it in machine-dependent code. In this file, the function
65 * CheckJVMType removes vm style options and TranslateApplicationArgs
66 * removes "-J" prefixes. On unix platforms, the
67 * CreateExecutionEnvironment function from the unix java_md.c file
68 * processes and removes -d<n> options. However, in case
69 * CreateExecutionEnvironment does not need to exec because
70 * LD_LIBRARY_PATH is set acceptably and the data model does not need
71 * to be changed, ParseArguments will screen out the redundant -d<n>
72 * options and prevent them from being passed to the vm; this is done
73 * by using the machine-dependent call
74 * RemovableMachineDependentOption.
75 */
76
77 #include <stdio.h>
78 #include <stdlib.h>
79 #include <string.h>
80
81 #include <jni.h>
82 #include <jvm.h>
83 #include "java.h"
84 #ifndef GAMMA
85 #include "manifest_info.h"
86 #include "version_comp.h"
87 #include "splashscreen.h"
88 #endif
89 #include "wildcard.h"
90
91 #ifndef FULL_VERSION
92 #define FULL_VERSION JDK_MAJOR_VERSION "." JDK_MINOR_VERSION
93 #endif
94
95 /*
96 * The following environment variable is used to influence the behavior
97 * of the jre exec'd through the SelectVersion routine. The command line
98 * options which specify the version are not passed to the exec'd version,
99 * because that jre may be an older version which wouldn't recognize them.
100 * This environment variable is known to this (and later) version and serves
101 * to suppress the version selection code. This is not only for efficiency,
102 * but also for correctness, since any command line options have been
103 * removed which would cause any value found in the manifest to be used.
104 * This would be incorrect because the command line options are defined
105 * to take precedence.
106 *
107 * The value associated with this environment variable is the MainClass
108 * name from within the executable jar file (if any). This is strictly a
109 * performance enhancement to avoid re-reading the jar file manifest.
110 *
111 * A NOTE TO DEVELOPERS: For performance reasons it is important that
112 * the program image remain relatively small until after SelectVersion
113 * CreateExecutionEnvironment have finished their possibly recursive
114 * processing. Watch everything, but resist all temptations to use Java
115 * interfaces.
116 */
117 #define ENV_ENTRY "_JAVA_VERSION_SET"
118
119 #ifndef GAMMA
120 #define SPLASH_FILE_ENV_ENTRY "_JAVA_SPLASH_FILE"
121 #define SPLASH_JAR_ENV_ENTRY "_JAVA_SPLASH_JAR"
122 #endif
123
124 static jboolean printVersion = JNI_FALSE; /* print and exit */
125 static jboolean showVersion = JNI_FALSE; /* print but continue */
126 static char *progname;
127 jboolean _launcher_debug = JNI_FALSE;
128
129 #ifndef GAMMA
130 /*
131 * Entries for splash screen environment variables.
132 * putenv is performed in SelectVersion. We need
133 * them in memory until UnsetEnv, so they are made static
134 * global instead of auto local.
135 */
136 static char* splash_file_entry = NULL;
137 static char* splash_jar_entry = NULL;
138 #endif
139
140 /*
141 * List of VM options to be specified when the VM is created.
142 */
143 static JavaVMOption *options;
144 static int numOptions, maxOptions;
145
146 /*
147 * Prototypes for functions internal to launcher.
148 */
149 static void SetClassPath(const char *s);
150 static void SelectVersion(int argc, char **argv, char **main_class);
151 static jboolean ParseArguments(int *pargc, char ***pargv, char **pjarfile,
152 char **pclassname, int *pret, const char *jvmpath);
153 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv,
154 InvocationFunctions *ifn);
155 static jstring NewPlatformString(JNIEnv *env, char *s);
156 static jobjectArray NewPlatformStringArray(JNIEnv *env, char **strv, int strc);
157 static jclass LoadClass(JNIEnv *env, char *name);
158 static jstring GetMainClassName(JNIEnv *env, char *jarname);
159 static void SetJavaCommandLineProp(char* classname, char* jarfile, int argc, char** argv);
160 static void SetJavaLauncherProp(void);
161
162 #ifdef JAVA_ARGS
163 static void TranslateApplicationArgs(int *pargc, char ***pargv);
164 static jboolean AddApplicationOptions(void);
165 #endif
166
167 static void PrintJavaVersion(JNIEnv *env);
168 static void PrintUsage(void);
169 static jint PrintXUsage(const char *jvmpath);
170
171 static void SetPaths(int argc, char **argv);
172
173 #ifndef GAMMA
174
175 /* Maximum supported entries from jvm.cfg. */
176 #define INIT_MAX_KNOWN_VMS 10
177 /* Values for vmdesc.flag */
178 #define VM_UNKNOWN -1
179 #define VM_KNOWN 0
180 #define VM_ALIASED_TO 1
181 #define VM_WARN 2
182 #define VM_ERROR 3
183 #define VM_IF_SERVER_CLASS 4
184 #define VM_IGNORE 5
185 struct vmdesc {
186 char *name;
187 int flag;
188 char *alias;
189 char *server_class;
190 };
191 static struct vmdesc *knownVMs = NULL;
192 static int knownVMsCount = 0;
193 static int knownVMsLimit = 0;
194
195 static void GrowKnownVMs();
196 static int KnownVMIndex(const char* name);
197 static void FreeKnownVMs();
198 static void ShowSplashScreen();
199
200 #endif /* ifndef GAMMA */
201
202 jboolean ServerClassMachine();
203
204 /* flag which if set suppresses error messages from the launcher */
205 static int noExitErrorMessage = 0;
206
207 /*
208 * Running Java code in primordial thread caused many problems. We will
209 * create a new thread to invoke JVM. See 6316197 for more information.
210 */
211 static jlong threadStackSize = 0; /* stack size of the new thread */
212
213 int JNICALL JavaMain(void * args); /* entry point */
214
215 struct JavaMainArgs {
216 int argc;
217 char ** argv;
218 char * jarfile;
219 char * classname;
220 InvocationFunctions ifn;
221 };
222
223 /*
224 * Entry point.
225 */
226 int
227 main(int argc, char ** argv)
228 {
229 char *jarfile = 0;
230 char *classname = 0;
231 char *s = 0;
232 char *main_class = NULL;
233 int ret;
234 InvocationFunctions ifn;
235 jlong start, end;
236 char jrepath[MAXPATHLEN], jvmpath[MAXPATHLEN];
237 char ** original_argv = argv;
238
239 if (getenv("_JAVA_LAUNCHER_DEBUG") != 0) {
240 _launcher_debug = JNI_TRUE;
241 printf("----_JAVA_LAUNCHER_DEBUG----\n");
242 }
243
244 #ifndef GAMMA
245 /*
246 * Make sure the specified version of the JRE is running.
247 *
248 * There are three things to note about the SelectVersion() routine:
249 * 1) If the version running isn't correct, this routine doesn't
250 * return (either the correct version has been exec'd or an error
251 * was issued).
252 * 2) Argc and Argv in this scope are *not* altered by this routine.
253 * It is the responsibility of subsequent code to ignore the
254 * arguments handled by this routine.
255 * 3) As a side-effect, the variable "main_class" is guaranteed to
256 * be set (if it should ever be set). This isn't exactly the
257 * poster child for structured programming, but it is a small
258 * price to pay for not processing a jar file operand twice.
259 * (Note: This side effect has been disabled. See comment on
260 * bugid 5030265 below.)
261 */
262 SelectVersion(argc, argv, &main_class);
263 #endif /* ifndef GAMMA */
264
265 /* copy original argv */
266 {
267 int i;
268 original_argv = (char**)JLI_MemAlloc(sizeof(char*)*(argc+1));
269 for(i = 0; i < argc+1; i++)
270 original_argv[i] = argv[i];
271 }
272
273 CreateExecutionEnvironment(&argc, &argv,
274 jrepath, sizeof(jrepath),
275 jvmpath, sizeof(jvmpath),
276 original_argv);
277
278 ifn.CreateJavaVM = 0;
279 ifn.GetDefaultJavaVMInitArgs = 0;
280
281 if (_launcher_debug)
282 start = CounterGet();
283 if (!LoadJavaVM(jvmpath, &ifn)) {
284 exit(6);
285 }
286 if (_launcher_debug) {
287 end = CounterGet();
288 printf("%ld micro seconds to LoadJavaVM\n",
289 (long)(jint)Counter2Micros(end-start));
290 }
291
292 #ifdef JAVA_ARGS /* javac, jar and friends. */
293 progname = "java";
294 #else /* java, oldjava, javaw and friends */
295 #ifdef PROGNAME
296 progname = PROGNAME;
297 #else
298 progname = *argv;
299 if ((s = strrchr(progname, FILE_SEPARATOR)) != 0) {
300 progname = s + 1;
301 }
302 #endif /* PROGNAME */
303 #endif /* JAVA_ARGS */
304 ++argv;
305 --argc;
306
307 #ifdef JAVA_ARGS
308 /* Preprocess wrapper arguments */
309 TranslateApplicationArgs(&argc, &argv);
310 if (!AddApplicationOptions()) {
311 exit(1);
312 }
313 #endif
314
315 /* Set default CLASSPATH */
316 if ((s = getenv("CLASSPATH")) == 0) {
317 s = ".";
318 }
319 #ifndef JAVA_ARGS
320 SetClassPath(s);
321 #endif
322
323 /*
324 * Parse command line options; if the return value of
325 * ParseArguments is false, the program should exit.
326 */
327 if (!ParseArguments(&argc, &argv, &jarfile, &classname, &ret, jvmpath)) {
328 exit(ret);
329 }
330
331 /* Override class path if -jar flag was specified */
332 if (jarfile != 0) {
333 SetClassPath(jarfile);
334 }
335
336 /* set the -Dsun.java.command pseudo property */
337 SetJavaCommandLineProp(classname, jarfile, argc, argv);
338
339 /* Set the -Dsun.java.launcher pseudo property */
340 SetJavaLauncherProp();
341
342 /* set the -Dsun.java.launcher.* platform properties */
343 SetJavaLauncherPlatformProps();
344
345 #ifndef GAMMA
346 /* Show the splash screen if needed */
347 ShowSplashScreen();
348 #endif
349
350 /*
351 * Done with all command line processing and potential re-execs so
352 * clean up the environment.
353 */
354 (void)UnsetEnv(ENV_ENTRY);
355 #ifndef GAMMA
356 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
357 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
358
359 JLI_MemFree(splash_jar_entry);
360 JLI_MemFree(splash_file_entry);
361 #endif
362
363 /*
364 * If user doesn't specify stack size, check if VM has a preference.
365 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
366 * return its default stack size through the init args structure.
367 */
368 if (threadStackSize == 0) {
369 struct JDK1_1InitArgs args1_1;
370 memset((void*)&args1_1, 0, sizeof(args1_1));
371 args1_1.version = JNI_VERSION_1_1;
372 ifn.GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
373 if (args1_1.javaStackSize > 0) {
374 threadStackSize = args1_1.javaStackSize;
375 }
376 }
377
378 { /* Create a new thread to create JVM and invoke main method */
379 struct JavaMainArgs args;
380
381 args.argc = argc;
382 args.argv = argv;
383 args.jarfile = jarfile;
384 args.classname = classname;
385 args.ifn = ifn;
386
387 return ContinueInNewThread(JavaMain, threadStackSize, (void*)&args);
388 }
389 }
390
391 int JNICALL
392 JavaMain(void * _args)
393 {
394 struct JavaMainArgs *args = (struct JavaMainArgs *)_args;
395 int argc = args->argc;
396 char **argv = args->argv;
397 char *jarfile = args->jarfile;
398 char *classname = args->classname;
399 InvocationFunctions ifn = args->ifn;
400
401 JavaVM *vm = 0;
402 JNIEnv *env = 0;
403 jstring mainClassName;
404 jclass mainClass;
405 jmethodID mainID;
406 jobjectArray mainArgs;
407 int ret = 0;
408 jlong start, end;
409
410 /*
411 * Error message to print or display; by default the message will
412 * only be displayed in a window.
413 */
414 char * message = "Fatal exception occurred. Program will exit.";
415 jboolean messageDest = JNI_FALSE;
416
417 /* Initialize the virtual machine */
418
419 if (_launcher_debug)
420 start = CounterGet();
421 if (!InitializeJVM(&vm, &env, &ifn)) {
422 ReportErrorMessage("Could not create the Java virtual machine.",
423 JNI_TRUE);
424 exit(1);
425 }
426
427 if (printVersion || showVersion) {
428 PrintJavaVersion(env);
429 if ((*env)->ExceptionOccurred(env)) {
430 ReportExceptionDescription(env);
431 goto leave;
432 }
433 if (printVersion) {
434 ret = 0;
435 message = NULL;
436 goto leave;
437 }
438 if (showVersion) {
439 fprintf(stderr, "\n");
440 }
441 }
442
443 /* If the user specified neither a class name nor a JAR file */
444 if (jarfile == 0 && classname == 0) {
445 PrintUsage();
446 message = NULL;
447 goto leave;
448 }
449
450 #ifndef GAMMA
451 FreeKnownVMs(); /* after last possible PrintUsage() */
452 #endif
453
454 if (_launcher_debug) {
455 end = CounterGet();
456 printf("%ld micro seconds to InitializeJVM\n",
457 (long)(jint)Counter2Micros(end-start));
458 }
459
460 /* At this stage, argc/argv have the applications' arguments */
461 if (_launcher_debug) {
462 int i = 0;
463 printf("Main-Class is '%s'\n", classname ? classname : "");
464 printf("Apps' argc is %d\n", argc);
465 for (; i < argc; i++) {
466 printf(" argv[%2d] = '%s'\n", i, argv[i]);
467 }
468 }
469
470 ret = 1;
471
472 /*
473 * Get the application's main class.
474 *
475 * See bugid 5030265. The Main-Class name has already been parsed
476 * from the manifest, but not parsed properly for UTF-8 support.
477 * Hence the code here ignores the value previously extracted and
478 * uses the pre-existing code to reextract the value. This is
479 * possibly an end of release cycle expedient. However, it has
480 * also been discovered that passing some character sets through
481 * the environment has "strange" behavior on some variants of
482 * Windows. Hence, maybe the manifest parsing code local to the
483 * launcher should never be enhanced.
484 *
485 * Hence, future work should either:
486 * 1) Correct the local parsing code and verify that the
487 * Main-Class attribute gets properly passed through
488 * all environments,
489 * 2) Remove the vestages of maintaining main_class through
490 * the environment (and remove these comments).
491 */
492 if (jarfile != 0) {
493 mainClassName = GetMainClassName(env, jarfile);
494 if ((*env)->ExceptionOccurred(env)) {
495 ReportExceptionDescription(env);
496 goto leave;
497 }
498 if (mainClassName == NULL) {
499 const char * format = "Failed to load Main-Class manifest "
500 "attribute from\n%s";
501 message = (char*)JLI_MemAlloc((strlen(format) + strlen(jarfile)) *
502 sizeof(char));
503 sprintf(message, format, jarfile);
504 messageDest = JNI_TRUE;
505 goto leave;
506 }
507 classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0);
508 if (classname == NULL) {
509 ReportExceptionDescription(env);
510 goto leave;
511 }
512 mainClass = LoadClass(env, classname);
513 if(mainClass == NULL) { /* exception occured */
514 const char * format = "Could not find the main class: %s. Program will exit.";
515 ReportExceptionDescription(env);
516 message = (char *)JLI_MemAlloc((strlen(format) +
517 strlen(classname)) * sizeof(char) );
518 messageDest = JNI_TRUE;
519 sprintf(message, format, classname);
520 goto leave;
521 }
522 (*env)->ReleaseStringUTFChars(env, mainClassName, classname);
523 } else {
524 mainClassName = NewPlatformString(env, classname);
525 if (mainClassName == NULL) {
526 const char * format = "Failed to load Main Class: %s";
527 message = (char *)JLI_MemAlloc((strlen(format) + strlen(classname)) *
528 sizeof(char) );
529 sprintf(message, format, classname);
530 messageDest = JNI_TRUE;
531 goto leave;
532 }
533 classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0);
534 if (classname == NULL) {
535 ReportExceptionDescription(env);
536 goto leave;
537 }
538 mainClass = LoadClass(env, classname);
539 if(mainClass == NULL) { /* exception occured */
540 const char * format = "Could not find the main class: %s. Program will exit.";
541 ReportExceptionDescription(env);
542 message = (char *)JLI_MemAlloc((strlen(format) +
543 strlen(classname)) * sizeof(char) );
544 messageDest = JNI_TRUE;
545 sprintf(message, format, classname);
546 goto leave;
547 }
548 (*env)->ReleaseStringUTFChars(env, mainClassName, classname);
549 }
550
551 /* Get the application's main method */
552 mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
553 "([Ljava/lang/String;)V");
554 if (mainID == NULL) {
555 if ((*env)->ExceptionOccurred(env)) {
556 ReportExceptionDescription(env);
557 } else {
558 message = "No main method found in specified class.";
559 messageDest = JNI_TRUE;
560 }
561 goto leave;
562 }
563
564 { /* Make sure the main method is public */
565 jint mods;
566 jmethodID mid;
567 jobject obj = (*env)->ToReflectedMethod(env, mainClass,
568 mainID, JNI_TRUE);
569
570 if( obj == NULL) { /* exception occurred */
571 ReportExceptionDescription(env);
572 goto leave;
573 }
574
575 mid =
576 (*env)->GetMethodID(env,
577 (*env)->GetObjectClass(env, obj),
578 "getModifiers", "()I");
579 if ((*env)->ExceptionOccurred(env)) {
580 ReportExceptionDescription(env);
581 goto leave;
582 }
583
584 mods = (*env)->CallIntMethod(env, obj, mid);
585 if ((mods & 1) == 0) { /* if (!Modifier.isPublic(mods)) ... */
586 message = "Main method not public.";
587 messageDest = JNI_TRUE;
588 goto leave;
589 }
590 }
591
592 /* Build argument array */
593 mainArgs = NewPlatformStringArray(env, argv, argc);
594 if (mainArgs == NULL) {
595 ReportExceptionDescription(env);
596 goto leave;
597 }
598
599 /* Invoke main method. */
600 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs);
601
602 /*
603 * The launcher's exit code (in the absence of calls to
604 * System.exit) will be non-zero if main threw an exception.
605 */
606 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1;
607
608 /*
609 * Detach the main thread so that it appears to have ended when
610 * the application's main method exits. This will invoke the
611 * uncaught exception handler machinery if main threw an
612 * exception. An uncaught exception handler cannot change the
613 * launcher's return code except by calling System.exit.
614 */
615 if ((*vm)->DetachCurrentThread(vm) != 0) {
616 message = "Could not detach main thread.";
617 messageDest = JNI_TRUE;
618 ret = 1;
619 goto leave;
620 }
621
622 message = NULL;
623
624 leave:
625 /*
626 * Wait for all non-daemon threads to end, then destroy the VM.
627 * This will actually create a trivial new Java waiter thread
628 * named "DestroyJavaVM", but this will be seen as a different
629 * thread from the one that executed main, even though they are
630 * the same C thread. This allows mainThread.join() and
631 * mainThread.isAlive() to work as expected.
632 */
633 (*vm)->DestroyJavaVM(vm);
634
635 if(message != NULL && !noExitErrorMessage)
636 ReportErrorMessage(message, messageDest);
637 return ret;
638 }
639
640 #ifndef GAMMA
641 /*
642 * Checks the command line options to find which JVM type was
643 * specified. If no command line option was given for the JVM type,
644 * the default type is used. The environment variable
645 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also
646 * checked as ways of specifying which JVM type to invoke.
647 */
648 char *
649 CheckJvmType(int *pargc, char ***argv, jboolean speculative) {
650 int i, argi;
651 int argc;
652 char **newArgv;
653 int newArgvIdx = 0;
654 int isVMType;
655 int jvmidx = -1;
656 char *jvmtype = getenv("JDK_ALTERNATE_VM");
657
658 argc = *pargc;
659
660 /* To make things simpler we always copy the argv array */
661 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *));
662
663 /* The program name is always present */
664 newArgv[newArgvIdx++] = (*argv)[0];
665
666 for (argi = 1; argi < argc; argi++) {
667 char *arg = (*argv)[argi];
668 isVMType = 0;
669
670 #ifdef JAVA_ARGS
671 if (arg[0] != '-') {
672 newArgv[newArgvIdx++] = arg;
673 continue;
674 }
675 #else
676 if (strcmp(arg, "-classpath") == 0 ||
677 strcmp(arg, "-cp") == 0) {
678 newArgv[newArgvIdx++] = arg;
679 argi++;
680 if (argi < argc) {
681 newArgv[newArgvIdx++] = (*argv)[argi];
682 }
683 continue;
684 }
685 if (arg[0] != '-') break;
686 #endif
687
688 /* Did the user pass an explicit VM type? */
689 i = KnownVMIndex(arg);
690 if (i >= 0) {
691 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */
692 isVMType = 1;
693 *pargc = *pargc - 1;
694 }
695
696 /* Did the user specify an "alternate" VM? */
697 else if (strncmp(arg, "-XXaltjvm=", 10) == 0 || strncmp(arg, "-J-XXaltjvm=", 12) == 0) {
698 isVMType = 1;
699 jvmtype = arg+((arg[1]=='X')? 10 : 12);
700 jvmidx = -1;
701 }
702
703 if (!isVMType) {
704 newArgv[newArgvIdx++] = arg;
705 }
706 }
707
708 /*
709 * Finish copying the arguments if we aborted the above loop.
710 * NOTE that if we aborted via "break" then we did NOT copy the
711 * last argument above, and in addition argi will be less than
712 * argc.
713 */
714 while (argi < argc) {
715 newArgv[newArgvIdx++] = (*argv)[argi];
716 argi++;
717 }
718
719 /* argv is null-terminated */
720 newArgv[newArgvIdx] = 0;
721
722 /* Copy back argv */
723 *argv = newArgv;
724 *pargc = newArgvIdx;
725
726 /* use the default VM type if not specified (no alias processing) */
727 if (jvmtype == NULL) {
728 char* result = knownVMs[0].name+1;
729 /* Use a different VM type if we are on a server class machine? */
730 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) &&
731 (ServerClassMachine() == JNI_TRUE)) {
732 result = knownVMs[0].server_class+1;
733 }
734 if (_launcher_debug) {
735 printf("Default VM: %s\n", result);
736 }
737 return result;
738 }
739
740 /* if using an alternate VM, no alias processing */
741 if (jvmidx < 0)
742 return jvmtype;
743
744 /* Resolve aliases first */
745 {
746 int loopCount = 0;
747 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) {
748 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias);
749
750 if (loopCount > knownVMsCount) {
751 if (!speculative) {
752 ReportErrorMessage("Error: Corrupt jvm.cfg file; cycle in alias list.",
753 JNI_TRUE);
754 exit(1);
755 } else {
756 return "ERROR";
757 /* break; */
758 }
759 }
760
761 if (nextIdx < 0) {
762 if (!speculative) {
763 ReportErrorMessage2("Error: Unable to resolve VM alias %s",
764 knownVMs[jvmidx].alias, JNI_TRUE);
765 exit(1);
766 } else {
767 return "ERROR";
768 }
769 }
770 jvmidx = nextIdx;
771 jvmtype = knownVMs[jvmidx].name+1;
772 loopCount++;
773 }
774 }
775
776 switch (knownVMs[jvmidx].flag) {
777 case VM_WARN:
778 if (!speculative) {
779 fprintf(stderr, "Warning: %s VM not supported; %s VM will be used\n",
780 jvmtype, knownVMs[0].name + 1);
781 }
782 /* fall through */
783 case VM_IGNORE:
784 jvmtype = knownVMs[jvmidx=0].name + 1;
785 /* fall through */
786 case VM_KNOWN:
787 break;
788 case VM_ERROR:
789 if (!speculative) {
790 ReportErrorMessage2("Error: %s VM not supported", jvmtype, JNI_TRUE);
791 exit(1);
792 } else {
793 return "ERROR";
794 }
795 }
796
797 return jvmtype;
798 }
799 #endif /* ifndef GAMMA */
800
801 # define KB (1024UL)
802 # define MB (1024UL * KB)
803 # define GB (1024UL * MB)
804
805 /* copied from HotSpot function "atomll()" */
806 static int
807 parse_stack_size(const char *s, jlong *result) {
808 jlong n = 0;
809 int args_read = sscanf(s, jlong_format_specifier(), &n);
810 if (args_read != 1) {
811 return 0;
812 }
813 while (*s != '\0' && *s >= '0' && *s <= '9') {
814 s++;
815 }
816 // 4705540: illegal if more characters are found after the first non-digit
817 if (strlen(s) > 1) {
818 return 0;
819 }
820 switch (*s) {
821 case 'T': case 't':
822 *result = n * GB * KB;
823 return 1;
824 case 'G': case 'g':
825 *result = n * GB;
826 return 1;
827 case 'M': case 'm':
828 *result = n * MB;
829 return 1;
830 case 'K': case 'k':
831 *result = n * KB;
832 return 1;
833 case '\0':
834 *result = n;
835 return 1;
836 default:
837 /* Create JVM with default stack and let VM handle malformed -Xss string*/
838 return 0;
839 }
840 }
841
842 /*
843 * Adds a new VM option with the given given name and value.
844 */
845 void
846 AddOption(char *str, void *info)
847 {
848 /*
849 * Expand options array if needed to accommodate at least one more
850 * VM option.
851 */
852 if (numOptions >= maxOptions) {
853 if (options == 0) {
854 maxOptions = 4;
855 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
856 } else {
857 JavaVMOption *tmp;
858 maxOptions *= 2;
859 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
860 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
861 JLI_MemFree(options);
862 options = tmp;
863 }
864 }
865 options[numOptions].optionString = str;
866 options[numOptions++].extraInfo = info;
867
868 if (strncmp(str, "-Xss", 4) == 0) {
869 jlong tmp;
870 if (parse_stack_size(str + 4, &tmp)) {
871 threadStackSize = tmp;
872 }
873 }
874 }
875
876 static void
877 SetClassPath(const char *s)
878 {
879 char *def;
880 s = JLI_WildcardExpandClasspath(s);
881 def = JLI_MemAlloc(strlen(s) + 40);
882 sprintf(def, "-Djava.class.path=%s", s);
883 AddOption(def, NULL);
884 }
885
886 #ifndef GAMMA
887 /*
888 * The SelectVersion() routine ensures that an appropriate version of
889 * the JRE is running. The specification for the appropriate version
890 * is obtained from either the manifest of a jar file (preferred) or
891 * from command line options.
892 * The routine also parses splash screen command line options and
893 * passes on their values in private environment variables.
894 */
895 static void
896 SelectVersion(int argc, char **argv, char **main_class)
897 {
898 char *arg;
899 char **new_argv;
900 char **new_argp;
901 char *operand;
902 char *version = NULL;
903 char *jre = NULL;
904 int jarflag = 0;
905 int headlessflag = 0;
906 int restrict_search = -1; /* -1 implies not known */
907 manifest_info info;
908 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "=";
909 char *splash_file_name = NULL;
910 char *splash_jar_name = NULL;
911 char *env_in;
912 int res;
913
914 /*
915 * If the version has already been selected, set *main_class
916 * with the value passed through the environment (if any) and
917 * simply return.
918 */
919 if ((env_in = getenv(ENV_ENTRY)) != NULL) {
920 if (*env_in != '\0')
921 *main_class = JLI_StringDup(env_in);
922 return;
923 }
924
925 /*
926 * Scan through the arguments for options relevant to multiple JRE
927 * support. For reference, the command line syntax is defined as:
928 *
929 * SYNOPSIS
930 * java [options] class [argument...]
931 *
932 * java [options] -jar file.jar [argument...]
933 *
934 * As the scan is performed, make a copy of the argument list with
935 * the version specification options (new to 1.5) removed, so that
936 * a version less than 1.5 can be exec'd.
937 *
938 * Note that due to the syntax of the native Windows interface
939 * CreateProcess(), processing similar to the following exists in
940 * the Windows platform specific routine ExecJRE (in java_md.c).
941 * Changes here should be reproduced there.
942 */
943 new_argv = JLI_MemAlloc((argc + 1) * sizeof(char*));
944 new_argv[0] = argv[0];
945 new_argp = &new_argv[1];
946 argc--;
947 argv++;
948 while ((arg = *argv) != 0 && *arg == '-') {
949 if (strncmp(arg, "-version:", 9) == 0) {
950 version = arg + 9;
951 } else if (strcmp(arg, "-jre-restrict-search") == 0) {
952 restrict_search = 1;
953 } else if (strcmp(arg, "-no-jre-restrict-search") == 0) {
954 restrict_search = 0;
955 } else {
956 if (strcmp(arg, "-jar") == 0)
957 jarflag = 1;
958 /* deal with "unfortunate" classpath syntax */
959 if ((strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) &&
960 (argc >= 2)) {
961 *new_argp++ = arg;
962 argc--;
963 argv++;
964 arg = *argv;
965 }
966
967 /*
968 * Checking for headless toolkit option in the some way as AWT does:
969 * "true" means true and any other value means false
970 */
971 if (strcmp(arg, "-Djava.awt.headless=true") == 0) {
972 headlessflag = 1;
973 } else if (strncmp(arg, "-Djava.awt.headless=", 20) == 0) {
974 headlessflag = 0;
975 } else if (strncmp(arg, "-splash:", 8) == 0) {
976 splash_file_name = arg+8;
977 }
978 *new_argp++ = arg;
979 }
980 argc--;
981 argv++;
982 }
983 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */
984 operand = NULL;
985 } else {
986 argc--;
987 *new_argp++ = operand = *argv++;
988 }
989 while (argc-- > 0) /* Copy over [argument...] */
990 *new_argp++ = *argv++;
991 *new_argp = NULL;
992
993 /*
994 * If there is a jar file, read the manifest. If the jarfile can't be
995 * read, the manifest can't be read from the jar file, or the manifest
996 * is corrupt, issue the appropriate error messages and exit.
997 *
998 * Even if there isn't a jar file, construct a manifest_info structure
999 * containing the command line information. It's a convenient way to carry
1000 * this data around.
1001 */
1002 if (jarflag && operand) {
1003 if ((res = JLI_ParseManifest(operand, &info)) != 0) {
1004 if (res == -1)
1005 ReportErrorMessage2("Unable to access jarfile %s",
1006 operand, JNI_TRUE);
1007 else
1008 ReportErrorMessage2("Invalid or corrupt jarfile %s",
1009 operand, JNI_TRUE);
1010 exit(1);
1011 }
1012
1013 /*
1014 * Command line splash screen option should have precedence
1015 * over the manifest, so the manifest data is used only if
1016 * splash_file_name has not been initialized above during command
1017 * line parsing
1018 */
1019 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) {
1020 splash_file_name = info.splashscreen_image_file_name;
1021 splash_jar_name = operand;
1022 }
1023 } else {
1024 info.manifest_version = NULL;
1025 info.main_class = NULL;
1026 info.jre_version = NULL;
1027 info.jre_restrict_search = 0;
1028 }
1029
1030 /*
1031 * Passing on splash screen info in environment variables
1032 */
1033 if (splash_file_name && !headlessflag) {
1034 char* splash_file_entry = JLI_MemAlloc(strlen(SPLASH_FILE_ENV_ENTRY "=")+strlen(splash_file_name)+1);
1035 strcpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
1036 strcat(splash_file_entry, splash_file_name);
1037 putenv(splash_file_entry);
1038 }
1039 if (splash_jar_name && !headlessflag) {
1040 char* splash_jar_entry = JLI_MemAlloc(strlen(SPLASH_JAR_ENV_ENTRY "=")+strlen(splash_jar_name)+1);
1041 strcpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
1042 strcat(splash_jar_entry, splash_jar_name);
1043 putenv(splash_jar_entry);
1044 }
1045
1046 /*
1047 * The JRE-Version and JRE-Restrict-Search values (if any) from the
1048 * manifest are overwritten by any specified on the command line.
1049 */
1050 if (version != NULL)
1051 info.jre_version = version;
1052 if (restrict_search != -1)
1053 info.jre_restrict_search = restrict_search;
1054
1055 /*
1056 * "Valid" returns (other than unrecoverable errors) follow. Set
1057 * main_class as a side-effect of this routine.
1058 */
1059 if (info.main_class != NULL)
1060 *main_class = JLI_StringDup(info.main_class);
1061
1062 /*
1063 * If no version selection information is found either on the command
1064 * line or in the manifest, simply return.
1065 */
1066 if (info.jre_version == NULL) {
1067 JLI_FreeManifest();
1068 JLI_MemFree(new_argv);
1069 return;
1070 }
1071
1072 /*
1073 * Check for correct syntax of the version specification (JSR 56).
1074 */
1075 if (!JLI_ValidVersionString(info.jre_version)) {
1076 ReportErrorMessage2("Syntax error in version specification \"%s\"",
1077 info.jre_version, JNI_TRUE);
1078 exit(1);
1079 }
1080
1081 /*
1082 * Find the appropriate JVM on the system. Just to be as forgiving as
1083 * possible, if the standard algorithms don't locate an appropriate
1084 * jre, check to see if the one running will satisfy the requirements.
1085 * This can happen on systems which haven't been set-up for multiple
1086 * JRE support.
1087 */
1088 jre = LocateJRE(&info);
1089 if (_launcher_debug)
1090 printf("JRE-Version = %s, JRE-Restrict-Search = %s Selected = %s\n",
1091 (info.jre_version?info.jre_version:"null"),
1092 (info.jre_restrict_search?"true":"false"), (jre?jre:"null"));
1093 if (jre == NULL) {
1094 if (JLI_AcceptableRelease(FULL_VERSION, info.jre_version)) {
1095 JLI_FreeManifest();
1096 JLI_MemFree(new_argv);
1097 return;
1098 } else {
1099 ReportErrorMessage2(
1100 "Unable to locate JRE meeting specification \"%s\"",
1101 info.jre_version, JNI_TRUE);
1102 exit(1);
1103 }
1104 }
1105
1106 /*
1107 * If I'm not the chosen one, exec the chosen one. Returning from
1108 * ExecJRE indicates that I am indeed the chosen one.
1109 *
1110 * The private environment variable _JAVA_VERSION_SET is used to
1111 * prevent the chosen one from re-reading the manifest file and
1112 * using the values found within to override the (potential) command
1113 * line flags stripped from argv (because the target may not
1114 * understand them). Passing the MainClass value is an optimization
1115 * to avoid locating, expanding and parsing the manifest extra
1116 * times.
1117 */
1118 if (info.main_class != NULL) {
1119 if (strlen(info.main_class) <= MAXNAMELEN) {
1120 (void)strcat(env_entry, info.main_class);
1121 } else {
1122 ReportErrorMessage("Error: main-class: attribute exceeds system limits\n", JNI_TRUE);
1123 exit(1);
1124 }
1125 }
1126 (void)putenv(env_entry);
1127 ExecJRE(jre, new_argv);
1128 JLI_FreeManifest();
1129 JLI_MemFree(new_argv);
1130 return;
1131 }
1132 #endif /* ifndef GAMMA */
1133
1134 /*
1135 * Parses command line arguments. Returns JNI_FALSE if launcher
1136 * should exit without starting vm (e.g. certain version and usage
1137 * options); returns JNI_TRUE if vm needs to be started to process
1138 * given options. *pret (the launcher process return value) is set to
1139 * 0 for a normal exit.
1140 */
1141 static jboolean
1142 ParseArguments(int *pargc, char ***pargv, char **pjarfile,
1143 char **pclassname, int *pret, const char *jvmpath)
1144 {
1145 int argc = *pargc;
1146 char **argv = *pargv;
1147 jboolean jarflag = JNI_FALSE;
1148 char *arg;
1149
1150 *pret = 1;
1151 while ((arg = *argv) != 0 && *arg == '-') {
1152 argv++; --argc;
1153 if (strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) {
1154 if (argc < 1) {
1155 ReportErrorMessage2("%s requires class path specification",
1156 arg, JNI_TRUE);
1157 PrintUsage();
1158 return JNI_FALSE;
1159 }
1160 SetClassPath(*argv);
1161 argv++; --argc;
1162 } else if (strcmp(arg, "-jar") == 0) {
1163 jarflag = JNI_TRUE;
1164 } else if (strcmp(arg, "-help") == 0 ||
1165 strcmp(arg, "-h") == 0 ||
1166 strcmp(arg, "-?") == 0) {
1167 PrintUsage();
1168 *pret = 0;
1169 return JNI_FALSE;
1170 } else if (strcmp(arg, "-version") == 0) {
1171 printVersion = JNI_TRUE;
1172 return JNI_TRUE;
1173 } else if (strcmp(arg, "-showversion") == 0) {
1174 showVersion = JNI_TRUE;
1175 } else if (strcmp(arg, "-X") == 0) {
1176 *pret = PrintXUsage(jvmpath);
1177 return JNI_FALSE;
1178 /*
1179 * The following case provide backward compatibility with old-style
1180 * command line options.
1181 */
1182 } else if (strcmp(arg, "-fullversion") == 0) {
1183 fprintf(stderr, "%s full version \"%s\"\n", progname,
1184 FULL_VERSION);
1185 *pret = 0;
1186 return JNI_FALSE;
1187 } else if (strcmp(arg, "-verbosegc") == 0) {
1188 AddOption("-verbose:gc", NULL);
1189 } else if (strcmp(arg, "-t") == 0) {
1190 AddOption("-Xt", NULL);
1191 } else if (strcmp(arg, "-tm") == 0) {
1192 AddOption("-Xtm", NULL);
1193 } else if (strcmp(arg, "-debug") == 0) {
1194 AddOption("-Xdebug", NULL);
1195 } else if (strcmp(arg, "-noclassgc") == 0) {
1196 AddOption("-Xnoclassgc", NULL);
1197 } else if (strcmp(arg, "-Xfuture") == 0) {
1198 AddOption("-Xverify:all", NULL);
1199 } else if (strcmp(arg, "-verify") == 0) {
1200 AddOption("-Xverify:all", NULL);
1201 } else if (strcmp(arg, "-verifyremote") == 0) {
1202 AddOption("-Xverify:remote", NULL);
1203 } else if (strcmp(arg, "-noverify") == 0) {
1204 AddOption("-Xverify:none", NULL);
1205 } else if (strcmp(arg, "-XXsuppressExitMessage") == 0) {
1206 noExitErrorMessage = 1;
1207 } else if (strncmp(arg, "-prof", 5) == 0) {
1208 char *p = arg + 5;
1209 char *tmp = JLI_MemAlloc(strlen(arg) + 50);
1210 if (*p) {
1211 sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1);
1212 } else {
1213 sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof");
1214 }
1215 AddOption(tmp, NULL);
1216 } else if (strncmp(arg, "-ss", 3) == 0 ||
1217 strncmp(arg, "-oss", 4) == 0 ||
1218 strncmp(arg, "-ms", 3) == 0 ||
1219 strncmp(arg, "-mx", 3) == 0) {
1220 char *tmp = JLI_MemAlloc(strlen(arg) + 6);
1221 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */
1222 AddOption(tmp, NULL);
1223 } else if (strcmp(arg, "-checksource") == 0 ||
1224 strcmp(arg, "-cs") == 0 ||
1225 strcmp(arg, "-noasyncgc") == 0) {
1226 /* No longer supported */
1227 fprintf(stderr,
1228 "Warning: %s option is no longer supported.\n",
1229 arg);
1230 } else if (strncmp(arg, "-version:", 9) == 0 ||
1231 strcmp(arg, "-no-jre-restrict-search") == 0 ||
1232 strcmp(arg, "-jre-restrict-search") == 0 ||
1233 strncmp(arg, "-splash:", 8) == 0) {
1234 ; /* Ignore machine independent options already handled */
1235 } else if (RemovableMachineDependentOption(arg) ) {
1236 ; /* Do not pass option to vm. */
1237 }
1238 else {
1239 AddOption(arg, NULL);
1240 }
1241 }
1242
1243 if (--argc >= 0) {
1244 if (jarflag) {
1245 *pjarfile = *argv++;
1246 *pclassname = 0;
1247 } else {
1248 *pjarfile = 0;
1249 *pclassname = *argv++;
1250 }
1251 *pargc = argc;
1252 *pargv = argv;
1253 }
1254
1255 return JNI_TRUE;
1256 }
1257
1258 /*
1259 * Initializes the Java Virtual Machine. Also frees options array when
1260 * finished.
1261 */
1262 static jboolean
1263 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1264 {
1265 JavaVMInitArgs args;
1266 jint r;
1267
1268 memset(&args, 0, sizeof(args));
1269 args.version = JNI_VERSION_1_2;
1270 args.nOptions = numOptions;
1271 args.options = options;
1272 args.ignoreUnrecognized = JNI_FALSE;
1273
1274 if (_launcher_debug) {
1275 int i = 0;
1276 printf("JavaVM args:\n ");
1277 printf("version 0x%08lx, ", (long)args.version);
1278 printf("ignoreUnrecognized is %s, ",
1279 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1280 printf("nOptions is %ld\n", (long)args.nOptions);
1281 for (i = 0; i < numOptions; i++)
1282 printf(" option[%2d] = '%s'\n",
1283 i, args.options[i].optionString);
1284 }
1285
1286 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1287 JLI_MemFree(options);
1288 return r == JNI_OK;
1289 }
1290
1291
1292 #define NULL_CHECK0(e) if ((e) == 0) return 0
1293 #define NULL_CHECK(e) if ((e) == 0) return
1294
1295 static jstring platformEncoding = NULL;
1296 static jstring getPlatformEncoding(JNIEnv *env) {
1297 if (platformEncoding == NULL) {
1298 jstring propname = (*env)->NewStringUTF(env, "sun.jnu.encoding");
1299 if (propname) {
1300 jclass cls;
1301 jmethodID mid;
1302 NULL_CHECK0 (cls = (*env)->FindClass(env, "java/lang/System"));
1303 NULL_CHECK0 (mid = (*env)->GetStaticMethodID(
1304 env, cls,
1305 "getProperty",
1306 "(Ljava/lang/String;)Ljava/lang/String;"));
1307 platformEncoding = (*env)->CallStaticObjectMethod (
1308 env, cls, mid, propname);
1309 }
1310 }
1311 return platformEncoding;
1312 }
1313
1314 static jboolean isEncodingSupported(JNIEnv *env, jstring enc) {
1315 jclass cls;
1316 jmethodID mid;
1317 NULL_CHECK0 (cls = (*env)->FindClass(env, "java/nio/charset/Charset"));
1318 NULL_CHECK0 (mid = (*env)->GetStaticMethodID(
1319 env, cls,
1320 "isSupported",
1321 "(Ljava/lang/String;)Z"));
1322 return (*env)->CallStaticBooleanMethod(env, cls, mid, enc);
1323 }
1324
1325 /*
1326 * Returns a new Java string object for the specified platform string.
1327 */
1328 static jstring
1329 NewPlatformString(JNIEnv *env, char *s)
1330 {
1331 int len = (int)strlen(s);
1332 jclass cls;
1333 jmethodID mid;
1334 jbyteArray ary;
1335 jstring enc;
1336
1337 if (s == NULL)
1338 return 0;
1339 enc = getPlatformEncoding(env);
1340
1341 ary = (*env)->NewByteArray(env, len);
1342 if (ary != 0) {
1343 jstring str = 0;
1344 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1345 if (!(*env)->ExceptionOccurred(env)) {
1346 if (isEncodingSupported(env, enc) == JNI_TRUE) {
1347 NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String"));
1348 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>",
1349 "([BLjava/lang/String;)V"));
1350 str = (*env)->NewObject(env, cls, mid, ary, enc);
1351 } else {
1352 /*If the encoding specified in sun.jnu.encoding is not
1353 endorsed by "Charset.isSupported" we have to fall back
1354 to use String(byte[]) explicitly here without specifying
1355 the encoding name, in which the StringCoding class will
1356 pickup the iso-8859-1 as the fallback converter for us.
1357 */
1358 NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String"));
1359 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>",
1360 "([B)V"));
1361 str = (*env)->NewObject(env, cls, mid, ary);
1362 }
1363 (*env)->DeleteLocalRef(env, ary);
1364 return str;
1365 }
1366 }
1367 return 0;
1368 }
1369
1370 /*
1371 * Returns a new array of Java string objects for the specified
1372 * array of platform strings.
1373 */
1374 static jobjectArray
1375 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1376 {
1377 jarray cls;
1378 jarray ary;
1379 int i;
1380
1381 NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String"));
1382 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1383 for (i = 0; i < strc; i++) {
1384 jstring str = NewPlatformString(env, *strv++);
1385 NULL_CHECK0(str);
1386 (*env)->SetObjectArrayElement(env, ary, i, str);
1387 (*env)->DeleteLocalRef(env, str);
1388 }
1389 return ary;
1390 }
1391
1392 /*
1393 * Loads a class, convert the '.' to '/'.
1394 */
1395 static jclass
1396 LoadClass(JNIEnv *env, char *name)
1397 {
1398 char *buf = JLI_MemAlloc(strlen(name) + 1);
1399 char *s = buf, *t = name, c;
1400 jclass cls;
1401 jlong start, end;
1402
1403 if (_launcher_debug)
1404 start = CounterGet();
1405
1406 do {
1407 c = *t++;
1408 *s++ = (c == '.') ? '/' : c;
1409 } while (c != '\0');
1410 cls = (*env)->FindClass(env, buf);
1411 JLI_MemFree(buf);
1412
1413 if (_launcher_debug) {
1414 end = CounterGet();
1415 printf("%ld micro seconds to load main class\n",
1416 (long)(jint)Counter2Micros(end-start));
1417 printf("----_JAVA_LAUNCHER_DEBUG----\n");
1418 }
1419
1420 return cls;
1421 }
1422
1423
1424 /*
1425 * Returns the main class name for the specified jar file.
1426 */
1427 static jstring
1428 GetMainClassName(JNIEnv *env, char *jarname)
1429 {
1430 #define MAIN_CLASS "Main-Class"
1431 jclass cls;
1432 jmethodID mid;
1433 jobject jar, man, attr;
1434 jstring str, result = 0;
1435
1436 NULL_CHECK0(cls = (*env)->FindClass(env, "java/util/jar/JarFile"));
1437 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>",
1438 "(Ljava/lang/String;)V"));
1439 NULL_CHECK0(str = NewPlatformString(env, jarname));
1440 NULL_CHECK0(jar = (*env)->NewObject(env, cls, mid, str));
1441 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "getManifest",
1442 "()Ljava/util/jar/Manifest;"));
1443 man = (*env)->CallObjectMethod(env, jar, mid);
1444 if (man != 0) {
1445 NULL_CHECK0(mid = (*env)->GetMethodID(env,
1446 (*env)->GetObjectClass(env, man),
1447 "getMainAttributes",
1448 "()Ljava/util/jar/Attributes;"));
1449 attr = (*env)->CallObjectMethod(env, man, mid);
1450 if (attr != 0) {
1451 NULL_CHECK0(mid = (*env)->GetMethodID(env,
1452 (*env)->GetObjectClass(env, attr),
1453 "getValue",
1454 "(Ljava/lang/String;)Ljava/lang/String;"));
1455 NULL_CHECK0(str = NewPlatformString(env, MAIN_CLASS));
1456 result = (*env)->CallObjectMethod(env, attr, mid, str);
1457 }
1458 }
1459 return result;
1460 }
1461
1462 #ifdef JAVA_ARGS
1463 static char *java_args[] = JAVA_ARGS;
1464 static char *app_classpath[] = APP_CLASSPATH;
1465
1466 /*
1467 * For tools, convert command line args thus:
1468 * javac -cp foo:foo/"*" -J-ms32m ...
1469 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1470 */
1471 static void
1472 TranslateApplicationArgs(int *pargc, char ***pargv)
1473 {
1474 const int NUM_ARGS = (sizeof(java_args) / sizeof(char *));
1475 int argc = *pargc;
1476 char **argv = *pargv;
1477 int nargc = argc + NUM_ARGS;
1478 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1479 int i;
1480
1481 *pargc = nargc;
1482 *pargv = nargv;
1483
1484 /* Copy the VM arguments (i.e. prefixed with -J) */
1485 for (i = 0; i < NUM_ARGS; i++) {
1486 char *arg = java_args[i];
1487 if (arg[0] == '-' && arg[1] == 'J') {
1488 *nargv++ = arg + 2;
1489 }
1490 }
1491
1492 for (i = 0; i < argc; i++) {
1493 char *arg = argv[i];
1494 if (arg[0] == '-' && arg[1] == 'J') {
1495 if (arg[2] == '\0') {
1496 ReportErrorMessage("Error: the -J option should not be "
1497 "followed by a space.", JNI_TRUE);
1498 exit(1);
1499 }
1500 *nargv++ = arg + 2;
1501 }
1502 }
1503
1504 /* Copy the rest of the arguments */
1505 for (i = 0; i < NUM_ARGS; i++) {
1506 char *arg = java_args[i];
1507 if (arg[0] != '-' || arg[1] != 'J') {
1508 *nargv++ = arg;
1509 }
1510 }
1511 for (i = 0; i < argc; i++) {
1512 char *arg = argv[i];
1513 if (arg[0] == '-') {
1514 if (arg[1] == 'J')
1515 continue;
1516 #ifdef EXPAND_CLASSPATH_WILDCARDS
1517 if (arg[1] == 'c'
1518 && (strcmp(arg, "-cp") == 0 ||
1519 strcmp(arg, "-classpath") == 0)
1520 && i < argc - 1) {
1521 *nargv++ = arg;
1522 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1523 i++;
1524 continue;
1525 }
1526 #endif
1527 }
1528 *nargv++ = arg;
1529 }
1530 *nargv = 0;
1531 }
1532
1533 /*
1534 * For our tools, we try to add 3 VM options:
1535 * -Denv.class.path=<envcp>
1536 * -Dapplication.home=<apphome>
1537 * -Djava.class.path=<appcp>
1538 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1539 * tells javac where to find binary classes through this environment
1540 * variable. Notice that users will be able to compile against our
1541 * tools classes (sun.tools.javac.Main) only if they explicitly add
1542 * tools.jar to CLASSPATH.
1543 * <apphome> is the directory where the application is installed.
1544 * <appcp> is the classpath to where our apps' classfiles are.
1545 */
1546 static jboolean
1547 AddApplicationOptions()
1548 {
1549 const int NUM_APP_CLASSPATH = (sizeof(app_classpath) / sizeof(char *));
1550 char *envcp, *appcp, *apphome;
1551 char home[MAXPATHLEN]; /* application home */
1552 char separator[] = { PATH_SEPARATOR, '\0' };
1553 int size, i;
1554 int strlenHome;
1555
1556 {
1557 const char *s = getenv("CLASSPATH");
1558 if (s) {
1559 s = (char *) JLI_WildcardExpandClasspath(s);
1560 /* 40 for -Denv.class.path= */
1561 envcp = (char *)JLI_MemAlloc(strlen(s) + 40);
1562 sprintf(envcp, "-Denv.class.path=%s", s);
1563 AddOption(envcp, NULL);
1564 }
1565 }
1566
1567 if (!GetApplicationHome(home, sizeof(home))) {
1568 ReportErrorMessage("Can't determine application home", JNI_TRUE);
1569 return JNI_FALSE;
1570 }
1571
1572 /* 40 for '-Dapplication.home=' */
1573 apphome = (char *)JLI_MemAlloc(strlen(home) + 40);
1574 sprintf(apphome, "-Dapplication.home=%s", home);
1575 AddOption(apphome, NULL);
1576
1577 /* How big is the application's classpath? */
1578 size = 40; /* 40: "-Djava.class.path=" */
1579 strlenHome = (int)strlen(home);
1580 for (i = 0; i < NUM_APP_CLASSPATH; i++) {
1581 size += strlenHome + (int)strlen(app_classpath[i]) + 1; /* 1: separator */
1582 }
1583 appcp = (char *)JLI_MemAlloc(size + 1);
1584 strcpy(appcp, "-Djava.class.path=");
1585 for (i = 0; i < NUM_APP_CLASSPATH; i++) {
1586 strcat(appcp, home); /* c:\program files\myapp */
1587 strcat(appcp, app_classpath[i]); /* \lib\myapp.jar */
1588 strcat(appcp, separator); /* ; */
1589 }
1590 appcp[strlen(appcp)-1] = '\0'; /* remove trailing path separator */
1591 AddOption(appcp, NULL);
1592 return JNI_TRUE;
1593 }
1594 #endif /* JAVA_ARGS */
1595
1596 /*
1597 * inject the -Dsun.java.command pseudo property into the args structure
1598 * this pseudo property is used in the HotSpot VM to expose the
1599 * Java class name and arguments to the main method to the VM. The
1600 * HotSpot VM uses this pseudo property to store the Java class name
1601 * (or jar file name) and the arguments to the class's main method
1602 * to the instrumentation memory region. The sun.java.command pseudo
1603 * property is not exported by HotSpot to the Java layer.
1604 */
1605 void
1606 SetJavaCommandLineProp(char *classname, char *jarfile,
1607 int argc, char **argv)
1608 {
1609
1610 int i = 0;
1611 size_t len = 0;
1612 char* javaCommand = NULL;
1613 char* dashDstr = "-Dsun.java.command=";
1614
1615 if (classname == NULL && jarfile == NULL) {
1616 /* unexpected, one of these should be set. just return without
1617 * setting the property
1618 */
1619 return;
1620 }
1621
1622 /* if the class name is not set, then use the jarfile name */
1623 if (classname == NULL) {
1624 classname = jarfile;
1625 }
1626
1627 /* determine the amount of memory to allocate assuming
1628 * the individual components will be space separated
1629 */
1630 len = strlen(classname);
1631 for (i = 0; i < argc; i++) {
1632 len += strlen(argv[i]) + 1;
1633 }
1634
1635 /* allocate the memory */
1636 javaCommand = (char*) JLI_MemAlloc(len + strlen(dashDstr) + 1);
1637
1638 /* build the -D string */
1639 *javaCommand = '\0';
1640 strcat(javaCommand, dashDstr);
1641 strcat(javaCommand, classname);
1642
1643 for (i = 0; i < argc; i++) {
1644 /* the components of the string are space separated. In
1645 * the case of embedded white space, the relationship of
1646 * the white space separated components to their true
1647 * positional arguments will be ambiguous. This issue may
1648 * be addressed in a future release.
1649 */
1650 strcat(javaCommand, " ");
1651 strcat(javaCommand, argv[i]);
1652 }
1653
1654 AddOption(javaCommand, NULL);
1655 }
1656
1657 /*
1658 * JVM would like to know if it's created by a standard Sun launcher, or by
1659 * user native application, the following property indicates the former.
1660 */
1661 void SetJavaLauncherProp() {
1662 AddOption("-Dsun.java.launcher=" LAUNCHER_TYPE, NULL);
1663 }
1664
1665 /*
1666 * Prints the version information from the java.version and other properties.
1667 */
1668 static void
1669 PrintJavaVersion(JNIEnv *env)
1670 {
1671 jclass ver;
1672 jmethodID print;
1673
1674 NULL_CHECK(ver = (*env)->FindClass(env, "sun/misc/Version"));
1675 NULL_CHECK(print = (*env)->GetStaticMethodID(env, ver, "print", "()V"));
1676
1677 (*env)->CallStaticVoidMethod(env, ver, print);
1678 }
1679
1680 /*
1681 * Prints default usage message.
1682 */
1683 static void
1684 PrintUsage(void)
1685 {
1686 #ifndef GAMMA
1687 int i;
1688 #endif
1689
1690 fprintf(stdout,
1691 "Usage: %s [-options] class [args...]\n"
1692 " (to execute a class)\n"
1693 " or %s [-options] -jar jarfile [args...]\n"
1694 " (to execute a jar file)\n"
1695 "\n"
1696 "where options include:\n",
1697 progname,
1698 progname);
1699
1700 #ifndef GAMMA
1701 PrintMachineDependentOptions();
1702
1703 if ((knownVMs[0].flag == VM_KNOWN) ||
1704 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) {
1705 fprintf(stdout, " %s\t to select the \"%s\" VM\n",
1706 knownVMs[0].name, knownVMs[0].name+1);
1707 }
1708 for (i=1; i<knownVMsCount; i++) {
1709 if (knownVMs[i].flag == VM_KNOWN)
1710 fprintf(stdout, " %s\t to select the \"%s\" VM\n",
1711 knownVMs[i].name, knownVMs[i].name+1);
1712 }
1713 for (i=1; i<knownVMsCount; i++) {
1714 if (knownVMs[i].flag == VM_ALIASED_TO)
1715 fprintf(stdout, " %s\t is a synonym for "
1716 "the \"%s\" VM [deprecated]\n",
1717 knownVMs[i].name, knownVMs[i].alias+1);
1718 }
1719 /* The first known VM is the default */
1720 {
1721 const char* defaultVM = knownVMs[0].name+1;
1722 const char* punctuation = ".";
1723 const char* reason = "";
1724 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) &&
1725 (ServerClassMachine() == JNI_TRUE)) {
1726 defaultVM = knownVMs[0].server_class+1;
1727 punctuation = ", ";
1728 reason = "because you are running on a server-class machine.\n";
1729 }
1730 fprintf(stdout, " The default VM is %s%s\n",
1731 defaultVM, punctuation);
1732 fprintf(stdout, " %s\n",
1733 reason);
1734 }
1735 #endif /* ifndef GAMMA */
1736
1737 fprintf(stdout,
1738 " -cp <class search path of directories and zip/jar files>\n"
1739 " -classpath <class search path of directories and zip/jar files>\n"
1740 " A %c separated list of directories, JAR archives,\n"
1741 " and ZIP archives to search for class files.\n"
1742 " -D<name>=<value>\n"
1743 " set a system property\n"
1744 " -verbose[:class|gc|jni]\n"
1745 " enable verbose output\n"
1746 " -version print product version and exit\n"
1747 " -version:<value>\n"
1748 " require the specified version to run\n"
1749 " -showversion print product version and continue\n"
1750 " -jre-restrict-search | -jre-no-restrict-search\n"
1751 " include/exclude user private JREs in the version search\n"
1752 " -? -help print this help message\n"
1753 " -X print help on non-standard options\n"
1754 " -ea[:<packagename>...|:<classname>]\n"
1755 " -enableassertions[:<packagename>...|:<classname>]\n"
1756 " enable assertions\n"
1757 " -da[:<packagename>...|:<classname>]\n"
1758 " -disableassertions[:<packagename>...|:<classname>]\n"
1759 " disable assertions\n"
1760 " -esa | -enablesystemassertions\n"
1761 " enable system assertions\n"
1762 " -dsa | -disablesystemassertions\n"
1763 " disable system assertions\n"
1764 " -agentlib:<libname>[=<options>]\n"
1765 " load native agent library <libname>, e.g. -agentlib:hprof\n"
1766 " see also, -agentlib:jdwp=help and -agentlib:hprof=help\n"
1767 " -agentpath:<pathname>[=<options>]\n"
1768 " load native agent library by full pathname\n"
1769 " -javaagent:<jarpath>[=<options>]\n"
1770 " load Java programming language agent, see java.lang.instrument\n"
1771 " -splash:<imagepath>\n"
1772 " show splash screen with specified image\n"
1773
1774 ,PATH_SEPARATOR);
1775 }
1776
1777 /*
1778 * Print usage message for -X options.
1779 */
1780 static jint
1781 PrintXUsage(const char *jvmpath)
1782 {
1783 /*
1784 A 32 bit cushion to prevent buffer overrun, noting that
1785 fopen(3C) may fail if the buffer exceeds MAXPATHLEN.
1786 */
1787 char path[MAXPATHLEN+32];
1788 char buf[128];
1789 size_t n;
1790 FILE *fp;
1791 static const char Xusage_txt[] = "/Xusage.txt";
1792
1793 strcpy(path, jvmpath);
1794 /* Note the FILE_SEPARATOR is platform dependent */
1795 strcpy(strrchr(path, FILE_SEPARATOR), Xusage_txt);
1796 fp = fopen(path, "r");
1797 if (fp == 0) {
1798 fprintf(stderr, "Can't open %s\n", path);
1799 return 1;
1800 }
1801 while ((n = fread(buf, 1, sizeof(buf), fp)) != 0) {
1802 fwrite(buf, 1, n, stdout);
1803 }
1804 fclose(fp);
1805 return 0;
1806 }
1807
1808 #ifndef GAMMA
1809 /*
1810 * Read the jvm.cfg file and fill the knownJVMs[] array.
1811 *
1812 * The functionality of the jvm.cfg file is subject to change without
1813 * notice and the mechanism will be removed in the future.
1814 *
1815 * The lexical structure of the jvm.cfg file is as follows:
1816 *
1817 * jvmcfg := { vmLine }
1818 * vmLine := knownLine
1819 * | aliasLine
1820 * | warnLine
1821 * | ignoreLine
1822 * | errorLine
1823 * | predicateLine
1824 * | commentLine
1825 * knownLine := flag "KNOWN" EOL
1826 * warnLine := flag "WARN" EOL
1827 * ignoreLine := flag "IGNORE" EOL
1828 * errorLine := flag "ERROR" EOL
1829 * aliasLine := flag "ALIASED_TO" flag EOL
1830 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
1831 * commentLine := "#" text EOL
1832 * flag := "-" identifier
1833 *
1834 * The semantics are that when someone specifies a flag on the command line:
1835 * - if the flag appears on a knownLine, then the identifier is used as
1836 * the name of the directory holding the JVM library (the name of the JVM).
1837 * - if the flag appears as the first flag on an aliasLine, the identifier
1838 * of the second flag is used as the name of the JVM.
1839 * - if the flag appears on a warnLine, the identifier is used as the
1840 * name of the JVM, but a warning is generated.
1841 * - if the flag appears on an ignoreLine, the identifier is recognized as the
1842 * name of a JVM, but the identifier is ignored and the default vm used
1843 * - if the flag appears on an errorLine, an error is generated.
1844 * - if the flag appears as the first flag on a predicateLine, and
1845 * the machine on which you are running passes the predicate indicated,
1846 * then the identifier of the second flag is used as the name of the JVM,
1847 * otherwise the identifier of the first flag is used as the name of the JVM.
1848 * If no flag is given on the command line, the first vmLine of the jvm.cfg
1849 * file determines the name of the JVM.
1850 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
1851 * since they only make sense if someone hasn't specified the name of the
1852 * JVM on the command line.
1853 *
1854 * The intent of the jvm.cfg file is to allow several JVM libraries to
1855 * be installed in different subdirectories of a single JRE installation,
1856 * for space-savings and convenience in testing.
1857 * The intent is explicitly not to provide a full aliasing or predicate
1858 * mechanism.
1859 */
1860 jint
1861 ReadKnownVMs(const char *jrepath, char * arch, jboolean speculative)
1862 {
1863 FILE *jvmCfg;
1864 char jvmCfgName[MAXPATHLEN+20];
1865 char line[MAXPATHLEN+20];
1866 int cnt = 0;
1867 int lineno = 0;
1868 jlong start, end;
1869 int vmType;
1870 char *tmpPtr;
1871 char *altVMName = NULL;
1872 char *serverClassVMName = NULL;
1873 static char *whiteSpace = " \t";
1874 if (_launcher_debug) {
1875 start = CounterGet();
1876 }
1877
1878 strcpy(jvmCfgName, jrepath);
1879 strcat(jvmCfgName, FILESEP "lib" FILESEP);
1880 strcat(jvmCfgName, arch);
1881 strcat(jvmCfgName, FILESEP "jvm.cfg");
1882
1883 jvmCfg = fopen(jvmCfgName, "r");
1884 if (jvmCfg == NULL) {
1885 if (!speculative) {
1886 ReportErrorMessage2("Error: could not open `%s'", jvmCfgName,
1887 JNI_TRUE);
1888 exit(1);
1889 } else {
1890 return -1;
1891 }
1892 }
1893 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
1894 vmType = VM_UNKNOWN;
1895 lineno++;
1896 if (line[0] == '#')
1897 continue;
1898 if (line[0] != '-') {
1899 fprintf(stderr, "Warning: no leading - on line %d of `%s'\n",
1900 lineno, jvmCfgName);
1901 }
1902 if (cnt >= knownVMsLimit) {
1903 GrowKnownVMs(cnt);
1904 }
1905 line[strlen(line)-1] = '\0'; /* remove trailing newline */
1906 tmpPtr = line + strcspn(line, whiteSpace);
1907 if (*tmpPtr == 0) {
1908 fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n",
1909 lineno, jvmCfgName);
1910 } else {
1911 /* Null-terminate this string for JLI_StringDup below */
1912 *tmpPtr++ = 0;
1913 tmpPtr += strspn(tmpPtr, whiteSpace);
1914 if (*tmpPtr == 0) {
1915 fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n",
1916 lineno, jvmCfgName);
1917 } else {
1918 if (!strncmp(tmpPtr, "KNOWN", strlen("KNOWN"))) {
1919 vmType = VM_KNOWN;
1920 } else if (!strncmp(tmpPtr, "ALIASED_TO", strlen("ALIASED_TO"))) {
1921 tmpPtr += strcspn(tmpPtr, whiteSpace);
1922 if (*tmpPtr != 0) {
1923 tmpPtr += strspn(tmpPtr, whiteSpace);
1924 }
1925 if (*tmpPtr == 0) {
1926 fprintf(stderr, "Warning: missing VM alias on line %d of `%s'\n",
1927 lineno, jvmCfgName);
1928 } else {
1929 /* Null terminate altVMName */
1930 altVMName = tmpPtr;
1931 tmpPtr += strcspn(tmpPtr, whiteSpace);
1932 *tmpPtr = 0;
1933 vmType = VM_ALIASED_TO;
1934 }
1935 } else if (!strncmp(tmpPtr, "WARN", strlen("WARN"))) {
1936 vmType = VM_WARN;
1937 } else if (!strncmp(tmpPtr, "IGNORE", strlen("IGNORE"))) {
1938 vmType = VM_IGNORE;
1939 } else if (!strncmp(tmpPtr, "ERROR", strlen("ERROR"))) {
1940 vmType = VM_ERROR;
1941 } else if (!strncmp(tmpPtr,
1942 "IF_SERVER_CLASS",
1943 strlen("IF_SERVER_CLASS"))) {
1944 tmpPtr += strcspn(tmpPtr, whiteSpace);
1945 if (*tmpPtr != 0) {
1946 tmpPtr += strspn(tmpPtr, whiteSpace);
1947 }
1948 if (*tmpPtr == 0) {
1949 fprintf(stderr, "Warning: missing server class VM on line %d of `%s'\n",
1950 lineno, jvmCfgName);
1951 } else {
1952 /* Null terminate server class VM name */
1953 serverClassVMName = tmpPtr;
1954 tmpPtr += strcspn(tmpPtr, whiteSpace);
1955 *tmpPtr = 0;
1956 vmType = VM_IF_SERVER_CLASS;
1957 }
1958 } else {
1959 fprintf(stderr, "Warning: unknown VM type on line %d of `%s'\n",
1960 lineno, &jvmCfgName[0]);
1961 vmType = VM_KNOWN;
1962 }
1963 }
1964 }
1965
1966 if (_launcher_debug)
1967 printf("jvm.cfg[%d] = ->%s<-\n", cnt, line);
1968 if (vmType != VM_UNKNOWN) {
1969 knownVMs[cnt].name = JLI_StringDup(line);
1970 knownVMs[cnt].flag = vmType;
1971 switch (vmType) {
1972 default:
1973 break;
1974 case VM_ALIASED_TO:
1975 knownVMs[cnt].alias = JLI_StringDup(altVMName);
1976 if (_launcher_debug) {
1977 printf(" name: %s vmType: %s alias: %s\n",
1978 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
1979 }
1980 break;
1981 case VM_IF_SERVER_CLASS:
1982 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName);
1983 if (_launcher_debug) {
1984 printf(" name: %s vmType: %s server_class: %s\n",
1985 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class);
1986 }
1987 break;
1988 }
1989 cnt++;
1990 }
1991 }
1992 fclose(jvmCfg);
1993 knownVMsCount = cnt;
1994
1995 if (_launcher_debug) {
1996 end = CounterGet();
1997 printf("%ld micro seconds to parse jvm.cfg\n",
1998 (long)(jint)Counter2Micros(end-start));
1999 }
2000
2001 return cnt;
2002 }
2003
2004
2005 static void
2006 GrowKnownVMs(int minimum)
2007 {
2008 struct vmdesc* newKnownVMs;
2009 int newMax;
2010
2011 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
2012 if (newMax <= minimum) {
2013 newMax = minimum;
2014 }
2015 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
2016 if (knownVMs != NULL) {
2017 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
2018 }
2019 JLI_MemFree(knownVMs);
2020 knownVMs = newKnownVMs;
2021 knownVMsLimit = newMax;
2022 }
2023
2024
2025 /* Returns index of VM or -1 if not found */
2026 static int
2027 KnownVMIndex(const char* name)
2028 {
2029 int i;
2030 if (strncmp(name, "-J", 2) == 0) name += 2;
2031 for (i = 0; i < knownVMsCount; i++) {
2032 if (!strcmp(name, knownVMs[i].name)) {
2033 return i;
2034 }
2035 }
2036 return -1;
2037 }
2038
2039 static void
2040 FreeKnownVMs()
2041 {
2042 int i;
2043 for (i = 0; i < knownVMsCount; i++) {
2044 JLI_MemFree(knownVMs[i].name);
2045 knownVMs[i].name = NULL;
2046 }
2047 JLI_MemFree(knownVMs);
2048 }
2049
2050
2051 /*
2052 * Displays the splash screen according to the jar file name
2053 * and image file names stored in environment variables
2054 */
2055 static void
2056 ShowSplashScreen()
2057 {
2058 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
2059 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
2060 int data_size;
2061 void *image_data;
2062 if (jar_name) {
2063 image_data = JLI_JarUnpackFile(jar_name, file_name, &data_size);
2064 if (image_data) {
2065 DoSplashInit();
2066 DoSplashLoadMemory(image_data, data_size);
2067 JLI_MemFree(image_data);
2068 }
2069 } else if (file_name) {
2070 DoSplashInit();
2071 DoSplashLoadFile(file_name);
2072 } else {
2073 return;
2074 }
2075 DoSplashSetFileJarName(file_name, jar_name);
2076 }
2077
2078 #endif /* ifndef GAMMA */