1 /*
2 * Copyright (c) 1995, 2025, 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).
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.
46 */
47
48
49 #include <assert.h>
50
51 #include "java.h"
52 #include "jni.h"
53 #include "stdbool.h"
54
55 /*
56 * A NOTE TO DEVELOPERS: For performance reasons it is important that
57 * the program image remain relatively small until after
58 * CreateExecutionEnvironment has finished its possibly recursive
59 * processing. Watch everything, but resist all temptations to use Java
60 * interfaces.
61 */
62
63 #define USE_STDERR JNI_TRUE /* we usually print to stderr */
64 #define USE_STDOUT JNI_FALSE
65
66 enum HelpKind {
67 HELP_NONE,
68 HELP_CONCISE,
69 HELP_FULL,
70 HELP_EXTRA
71 };
72
73 static jboolean printVersion = JNI_FALSE; /* print and exit */
74 static jboolean showVersion = JNI_FALSE; /* print but continue */
75 static enum HelpKind printUsageKind = HELP_NONE; /* if not NONE, print specified usage and exit*/
76 static jboolean printTo = USE_STDERR; /* where to print version/usage */
77 static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */
78 static char *showSettings = NULL; /* print but continue */
79 static jboolean showResolvedModules = JNI_FALSE;
80 static jboolean listModules = JNI_FALSE;
81 static char *describeModule = NULL;
82 static jboolean validateModules = JNI_FALSE;
83
84 static const char *_program_name;
85 static const char *_launcher_name;
86 static jboolean _is_java_args = JNI_FALSE;
87 static jboolean _have_classpath = JNI_FALSE;
88 static const char *_fVersion;
89 static jboolean _wc_enabled = JNI_FALSE;
90 static jboolean dumpSharedSpaces = JNI_FALSE; /* -Xshare:dump */
91
92 /*
93 * Values that will be stored into splash screen environment variables.
94 * putenv is performed to set _JAVA_SPLASH_FILE and _JAVA_SPLASH_JAR
95 * with these values. We need them in memory until UnsetEnv in
96 * ShowSplashScreen, so they are made static global instead of auto local.
97 */
98 static char* splash_file_entry = NULL;
99 static char* splash_jar_entry = NULL;
100
101 /*
102 * List of VM options to be specified when the VM is created.
103 */
104 static JavaVMOption *options;
105 static int numOptions, maxOptions;
106
107 /*
108 * Prototypes for functions internal to launcher.
109 */
110 static const char* GetFullVersion();
111 static jboolean IsJavaArgs();
112 static void SetJavaLauncherProp();
113 static void SetClassPath(const char *s);
114 static void SetMainModule(const char *s);
115 static jboolean ParseArguments(int *pargc, char ***pargv,
116 int *pmode, char **pwhat,
117 int *pret);
118 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv,
119 InvocationFunctions *ifn);
120 static jstring NewPlatformString(JNIEnv *env, char *s);
121 static jclass LoadMainClass(JNIEnv *env, int mode, char *name);
122 static void SetupSplashScreenEnvVars(const char *splash_file_path, char *jar_path);
123 static jclass GetApplicationClass(JNIEnv *env);
124
125 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv);
126 static jboolean AddApplicationOptions(int cpathc, const char **cpathv);
127
128 static void PrintJavaVersion(JNIEnv *env);
129 static void PrintUsage(JNIEnv* env, enum HelpKind printUsageKind);
130 static void ShowSettings(JNIEnv* env, char *optString);
131 static void ShowResolvedModules(JNIEnv* env);
132 static void ListModules(JNIEnv* env);
133 static void DescribeModule(JNIEnv* env, char* optString);
134
135 static void DumpState();
136
137 enum OptionKind {
138 LAUNCHER_OPTION = 0,
139 LAUNCHER_OPTION_WITH_ARGUMENT,
140 LAUNCHER_MAIN_OPTION,
141 VM_LONG_OPTION,
142 VM_LONG_OPTION_WITH_ARGUMENT,
143 VM_OPTION
144 };
145
146 static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue);
147 static jboolean IsOptionWithArgument(int argc, char **argv);
148
149 /* Maximum supported entries from jvm.cfg. */
150 #define INIT_MAX_KNOWN_VMS 10
151
152 /* Values for vmdesc.flag */
153 enum vmdesc_flag {
154 VM_UNKNOWN = -1,
155 VM_KNOWN,
156 VM_ALIASED_TO,
157 VM_WARN,
158 VM_ERROR,
159 VM_IF_SERVER_CLASS,
160 VM_IGNORE
161 };
162
163 struct vmdesc {
164 char *name;
165 int flag;
166 char *alias;
167 char *server_class;
168 };
169 static struct vmdesc *knownVMs = NULL;
170 static int knownVMsCount = 0;
171 static int knownVMsLimit = 0;
172
173 static void GrowKnownVMs(int minimum);
174 static int KnownVMIndex(const char* name);
175 static void FreeKnownVMs();
176 static jboolean IsWildCardEnabled();
177
178
179 #define SOURCE_LAUNCHER_MAIN_ENTRY "jdk.compiler/com.sun.tools.javac.launcher.SourceLauncher"
180
181 /*
182 * This reports error. VM will not be created and no usage is printed.
183 */
184 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \
185 do { \
186 if (!AC_ok) { \
187 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
188 printUsageKind = HELP_NONE; \
189 *pret = 1; \
190 return JNI_FALSE; \
191 } \
192 } while (JNI_FALSE)
193
194 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \
195 do { \
196 if (AC_arg_count < 1) { \
197 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
198 printUsageKind = HELP_FULL; \
199 *pret = 1; \
200 return JNI_TRUE; \
201 } \
202 } while (JNI_FALSE)
203
204 /*
205 * Running Java code in primordial thread caused many problems. We will
206 * create a new thread to invoke JVM. See 6316197 for more information.
207 */
208 static jlong threadStackSize = 0; /* stack size of the new thread */
209 static jlong maxHeapSize = 0; /* max heap size */
210 static jlong initialHeapSize = 0; /* initial heap size */
211
212 /*
213 * A minimum initial-thread stack size suitable for most platforms.
214 * This is the minimum amount of stack needed to load the JVM such
215 * that it can reject a too small -Xss value. If this is too small
216 * JVM initialization would cause a StackOverflowError.
217 */
218 #ifndef STACK_SIZE_MINIMUM
219 #define STACK_SIZE_MINIMUM (64 * KB)
220 #endif
221
222 /*
223 * Entry point.
224 */
225 JNIEXPORT int JNICALL
226 JLI_Launch(int argc, char ** argv, /* main argc, argv */
227 int jargc, const char** jargv, /* java args */
228 int appclassc, const char** appclassv, /* app classpath */
229 const char* fullversion, /* full version defined */
230 const char* dotversion, /* UNUSED dot version defined */
231 const char* pname, /* program name */
232 const char* lname, /* launcher name */
233 jboolean javaargs, /* JAVA_ARGS */
234 jboolean cpwildcard, /* classpath wildcard*/
235 jboolean javaw, /* windows-only javaw */
236 jint ergo /* unused */
237 )
238 {
239 int mode = LM_UNKNOWN;
240 char *what = NULL;
241 int ret;
242 InvocationFunctions ifn;
243 jlong start = 0, end = 0;
244 char jvmpath[MAXPATHLEN];
245 char jdkroot[MAXPATHLEN];
246 char jvmcfg[MAXPATHLEN];
247
248 _fVersion = fullversion;
249 _launcher_name = lname;
250 _program_name = pname;
251 _is_java_args = javaargs;
252 _wc_enabled = cpwildcard;
253
254 InitLauncher(javaw);
255 DumpState();
256 if (JLI_IsTraceLauncher()) {
257 char *env_in;
258 if ((env_in = getenv(MAIN_CLASS_ENV_ENTRY)) != NULL) {
259 printf("Launched through Multiple JRE (mJRE) support\n");
260 }
261 int i;
262 printf("Java args:\n");
263 for (i = 0; i < jargc ; i++) {
264 printf("jargv[%d] = %s\n", i, jargv[i]);
265 }
266 printf("Command line args:\n");
267 for (i = 0; i < argc ; i++) {
268 printf("argv[%d] = %s\n", i, argv[i]);
269 }
270 AddOption("-Dsun.java.launcher.diag=true", NULL);
271 }
272
273 CreateExecutionEnvironment(&argc, &argv,
274 jdkroot, sizeof(jdkroot),
275 jvmpath, sizeof(jvmpath),
276 jvmcfg, sizeof(jvmcfg));
277
278 ifn.CreateJavaVM = 0;
279 ifn.GetDefaultJavaVMInitArgs = 0;
280
281 if (JLI_IsTraceLauncher()) {
282 start = CurrentTimeMicros();
283 }
284
285 if (!LoadJavaVM(jvmpath, &ifn)) {
286 return(6);
287 }
288
289 if (JLI_IsTraceLauncher()) {
290 end = CurrentTimeMicros();
291 }
292
293 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", (long)(end-start));
294
295 ++argv;
296 --argc;
297
298 if (IsJavaArgs()) {
299 /* Preprocess wrapper arguments */
300 TranslateApplicationArgs(jargc, jargv, &argc, &argv);
301 if (!AddApplicationOptions(appclassc, appclassv)) {
302 return(1);
303 }
304 } else {
305 /* Set default CLASSPATH */
306 char* cpath = getenv("CLASSPATH");
307 if (cpath != NULL) {
308 SetClassPath(cpath);
309 }
310 }
311
312 /* Parse command line options; if the return value of
313 * ParseArguments is false, the program should exit.
314 */
315 if (!ParseArguments(&argc, &argv, &mode, &what, &ret)) {
316 return(ret);
317 }
318
319 /* Override class path if -jar flag was specified */
320 if (mode == LM_JAR) {
321 SetClassPath(what); /* Override class path */
322 }
323
324 /* set the -Dsun.java.command pseudo property */
325 SetJavaCommandLineProp(what, argc, argv);
326
327 /* Set the -Dsun.java.launcher pseudo property */
328 SetJavaLauncherProp();
329
330 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret);
331 }
332 /*
333 * Always detach the main thread so that it appears to have ended when
334 * the application's main method exits. This will invoke the
335 * uncaught exception handler machinery if main threw an
336 * exception. An uncaught exception handler cannot change the
337 * launcher's return code except by calling System.exit.
338 *
339 * Wait for all non-daemon threads to end, then destroy the VM.
340 * This will actually create a trivial new Java waiter thread
341 * named "DestroyJavaVM", but this will be seen as a different
342 * thread from the one that executed main, even though they are
343 * the same C thread. This allows mainThread.join() and
344 * mainThread.isAlive() to work as expected.
345 */
346 #define LEAVE() \
347 do { \
348 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \
349 JLI_ReportErrorMessage(JVM_ERROR2); \
350 ret = 1; \
351 } \
352 if (JNI_TRUE) { \
353 (*vm)->DestroyJavaVM(vm); \
354 return ret; \
355 } \
356 } while (JNI_FALSE)
357
358 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \
359 do { \
360 if ((*env)->ExceptionCheck(env)) { \
361 JLI_ReportExceptionDescription(env); \
362 LEAVE(); \
363 } \
364 if ((CENL_exception) == NULL) { \
365 JLI_ReportErrorMessage(JNI_ERROR); \
366 LEAVE(); \
367 } \
368 } while (JNI_FALSE)
369
370 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \
371 do { \
372 if ((*env)->ExceptionCheck(env)) { \
373 JLI_ReportExceptionDescription(env); \
374 ret = (CEL_return_value); \
375 LEAVE(); \
376 } \
377 } while (JNI_FALSE)
378
379 /*
380 * Invokes static main(String[]) method if found.
381 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe
382 * a pending exception if the method threw.
383 */
384 int
385 invokeStaticMainWithArgs(JNIEnv *env, jclass mainClass, jobjectArray mainArgs) {
386 jmethodID mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
387 "([Ljava/lang/String;)V");
388 if (mainID == NULL) {
389 // static main(String[]) not found
390 return 0;
391 }
392 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs);
393 return 1; // method was invoked
394 }
395
396 /*
397 * Invokes instance main(String[]) method if found.
398 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe
399 * a pending exception if the method threw.
400 */
401 int
402 invokeInstanceMainWithArgs(JNIEnv *env, jclass mainClass, jobjectArray mainArgs) {
403 jmethodID constructor = (*env)->GetMethodID(env, mainClass, "<init>", "()V");
404 if (constructor == NULL) {
405 // main class' no-arg constructor not found
406 return 0;
407 }
408 jobject mainObject = (*env)->NewObject(env, mainClass, constructor);
409 if (mainObject == NULL) {
410 // main class instance couldn't be constructed
411 return 0;
412 }
413 jmethodID mainID =
414 (*env)->GetMethodID(env, mainClass, "main", "([Ljava/lang/String;)V");
415 if (mainID == NULL) {
416 // instance method main(String[]) method not found
417 return 0;
418 }
419 (*env)->CallVoidMethod(env, mainObject, mainID, mainArgs);
420 return 1; // method was invoked
421 }
422
423 /*
424 * Invokes no-arg static main() method if found.
425 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe
426 * a pending exception if the method threw.
427 */
428 int
429 invokeStaticMainWithoutArgs(JNIEnv *env, jclass mainClass) {
430 jmethodID mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
431 "()V");
432 if (mainID == NULL) {
433 // static main() method couldn't be located
434 return 0;
435 }
436 (*env)->CallStaticVoidMethod(env, mainClass, mainID);
437 return 1; // method was invoked
438 }
439
440 /*
441 * Invokes no-arg instance main() method if found.
442 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe
443 * a pending exception if the method threw.
444 */
445 int
446 invokeInstanceMainWithoutArgs(JNIEnv *env, jclass mainClass) {
447 jmethodID constructor = (*env)->GetMethodID(env, mainClass, "<init>", "()V");
448 if (constructor == NULL) {
449 // main class' no-arg constructor not found
450 return 0;
451 }
452 jobject mainObject = (*env)->NewObject(env, mainClass, constructor);
453 if (mainObject == NULL) {
454 // couldn't create instance of main class
455 return 0;
456 }
457 jmethodID mainID = (*env)->GetMethodID(env, mainClass, "main",
458 "()V");
459 if (mainID == NULL) {
460 // instance method main() not found
461 return 0;
462 }
463 (*env)->CallVoidMethod(env, mainObject, mainID);
464 return 1; // method was invoked
465 }
466
467 int
468 JavaMain(void* _args)
469 {
470 JavaMainArgs *args = (JavaMainArgs *)_args;
471 int argc = args->argc;
472 char **argv = args->argv;
473 int mode = args->mode;
474 char *what = args->what;
475 InvocationFunctions ifn = args->ifn;
476
477 JavaVM *vm = 0;
478 JNIEnv *env = 0;
479 jclass mainClass = NULL;
480 jclass appClass = NULL; // actual application class being launched
481 jobjectArray mainArgs;
482 int ret = 0;
483 jlong start = 0, end = 0;
484 jclass helperClass;
485 jfieldID isStaticMainField;
486 jboolean isStaticMain;
487 jfieldID noArgMainField;
488 jboolean noArgMain;
489
490 RegisterThread();
491
492 /* Initialize the virtual machine */
493 start = CurrentTimeMicros();
494 if (!InitializeJVM(&vm, &env, &ifn)) {
495 JLI_ReportErrorMessage(JVM_ERROR1);
496 exit(1);
497 }
498
499 if (showSettings != NULL) {
500 ShowSettings(env, showSettings);
501 CHECK_EXCEPTION_LEAVE(1);
502 }
503
504 // show resolved modules and continue
505 if (showResolvedModules) {
506 ShowResolvedModules(env);
507 CHECK_EXCEPTION_LEAVE(1);
508 }
509
510 // list observable modules, then exit
511 if (listModules) {
512 ListModules(env);
513 CHECK_EXCEPTION_LEAVE(1);
514 LEAVE();
515 }
516
517 // describe a module, then exit
518 if (describeModule != NULL) {
519 DescribeModule(env, describeModule);
520 CHECK_EXCEPTION_LEAVE(1);
521 LEAVE();
522 }
523
524 if (printVersion || showVersion) {
525 PrintJavaVersion(env);
526 CHECK_EXCEPTION_LEAVE(0);
527 if (printVersion) {
528 LEAVE();
529 }
530 }
531
532 // modules have been validated at startup so exit
533 if (validateModules) {
534 LEAVE();
535 }
536
537 /*
538 * -Xshare:dump does not have a main class so the VM can safely exit now
539 */
540 if (dumpSharedSpaces) {
541 CHECK_EXCEPTION_LEAVE(1);
542 LEAVE();
543 }
544
545 /* If the user specified neither a class name nor a JAR file */
546 if (printUsageKind != HELP_NONE) {
547 PrintUsage(env, printUsageKind);
548 CHECK_EXCEPTION_LEAVE(1);
549 LEAVE();
550 }
551
552 FreeKnownVMs(); /* after last possible PrintUsage */
553
554 if (JLI_IsTraceLauncher()) {
555 end = CurrentTimeMicros();
556 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", (long)(end-start));
557 }
558
559 /* At this stage, argc/argv have the application's arguments */
560 if (JLI_IsTraceLauncher()){
561 int i;
562 printf("%s is '%s'\n", launchModeNames[mode], what);
563 printf("App's argc is %d\n", argc);
564 for (i=0; i < argc; i++) {
565 printf(" argv[%2d] = '%s'\n", i, argv[i]);
566 }
567 }
568
569 ret = 1;
570
571 /*
572 * See bugid 5030265. The Main-Class name has already been parsed
573 * from the manifest, but not parsed properly for UTF-8 support.
574 * Hence the code here ignores the value previously extracted and
575 * uses the pre-existing code to reextract the value. This is
576 * possibly an end of release cycle expedient. However, it has
577 * also been discovered that passing some character sets through
578 * the environment has "strange" behavior on some variants of
579 * Windows. Hence, maybe the manifest parsing code local to the
580 * launcher should never be enhanced.
581 *
582 * Hence, future work should either:
583 * 1) Correct the local parsing code and verify that the
584 * Main-Class attribute gets properly passed through
585 * all environments,
586 * 2) Remove the vestages of maintaining main_class through
587 * the environment (and remove these comments).
588 *
589 * This method also correctly handles launching existing JavaFX
590 * applications that may or may not have a Main-Class manifest entry.
591 */
592 mainClass = LoadMainClass(env, mode, what);
593 CHECK_EXCEPTION_NULL_LEAVE(mainClass);
594 /*
595 * In some cases when launching an application that needs a helper, e.g., a
596 * JavaFX application with no main method, the mainClass will not be the
597 * applications own main class but rather a helper class. To keep things
598 * consistent in the UI we need to track and report the application main class.
599 */
600 appClass = GetApplicationClass(env);
601 CHECK_EXCEPTION_NULL_LEAVE(appClass);
602
603 /* Build platform specific argument array */
604 mainArgs = CreateApplicationArgs(env, argv, argc);
605 CHECK_EXCEPTION_NULL_LEAVE(mainArgs);
606
607 if (dryRun) {
608 ret = 0;
609 LEAVE();
610 }
611
612 /*
613 * PostJVMInit uses the class name as the application name for GUI purposes,
614 * for example, on OSX this sets the application name in the menu bar for
615 * both SWT and JavaFX. So we'll pass the actual application class here
616 * instead of mainClass as that may be a launcher or helper class instead
617 * of the application class.
618 */
619 PostJVMInit(env, appClass, vm);
620 CHECK_EXCEPTION_LEAVE(1);
621
622 /*
623 * The main method is invoked here so that extraneous java stacks are not in
624 * the application stack trace.
625 */
626
627 helperClass = GetLauncherHelperClass(env);
628 isStaticMainField = (*env)->GetStaticFieldID(env, helperClass, "isStaticMain", "Z");
629 CHECK_EXCEPTION_NULL_LEAVE(isStaticMainField);
630 isStaticMain = (*env)->GetStaticBooleanField(env, helperClass, isStaticMainField);
631
632 noArgMainField = (*env)->GetStaticFieldID(env, helperClass, "noArgMain", "Z");
633 CHECK_EXCEPTION_NULL_LEAVE(noArgMainField);
634 noArgMain = (*env)->GetStaticBooleanField(env, helperClass, noArgMainField);
635
636 if (isStaticMain) {
637 if (noArgMain) {
638 ret = invokeStaticMainWithoutArgs(env, mainClass);
639 } else {
640 ret = invokeStaticMainWithArgs(env, mainClass, mainArgs);
641 }
642 } else {
643 if (noArgMain) {
644 ret = invokeInstanceMainWithoutArgs(env, mainClass);
645 } else {
646 ret = invokeInstanceMainWithArgs(env, mainClass, mainArgs);
647 }
648 }
649 if (!ret) {
650 // An appropriate main method couldn't be located, check and report
651 // any exception and LEAVE()
652 CHECK_EXCEPTION_LEAVE(1);
653 }
654
655 /*
656 * The launcher's exit code (in the absence of calls to
657 * System.exit) will be non-zero if main threw an exception.
658 */
659 if (ret && !(*env)->ExceptionCheck(env)) {
660 // main method was invoked and no exception was thrown from it,
661 // return success.
662 ret = 0;
663 } else {
664 // Either the main method couldn't be located or an exception occurred
665 // in the invoked main method, return failure.
666 ret = 1;
667 }
668 LEAVE();
669 }
670
671 /*
672 * Test if the given name is one of the class path options.
673 */
674 static jboolean
675 IsClassPathOption(const char* name) {
676 return JLI_StrCmp(name, "-classpath") == 0 ||
677 JLI_StrCmp(name, "-cp") == 0 ||
678 JLI_StrCmp(name, "--class-path") == 0;
679 }
680
681 /*
682 * Test if the given name is a launcher option taking the main entry point.
683 */
684 static jboolean
685 IsLauncherMainOption(const char* name) {
686 return JLI_StrCmp(name, "--module") == 0 ||
687 JLI_StrCmp(name, "-m") == 0;
688 }
689
690 /*
691 * Test if the given name is a white-space launcher option.
692 */
693 static jboolean
694 IsLauncherOption(const char* name) {
695 return IsClassPathOption(name) ||
696 IsLauncherMainOption(name) ||
697 JLI_StrCmp(name, "--describe-module") == 0 ||
698 JLI_StrCmp(name, "-d") == 0 ||
699 JLI_StrCmp(name, "--source") == 0;
700 }
701
702 /*
703 * Test if the given name is a module-system white-space option that
704 * will be passed to the VM with its corresponding long-form option
705 * name and "=" delimiter.
706 */
707 static jboolean
708 IsModuleOption(const char* name) {
709 return JLI_StrCmp(name, "--module-path") == 0 ||
710 JLI_StrCmp(name, "-p") == 0 ||
711 JLI_StrCmp(name, "--upgrade-module-path") == 0 ||
712 JLI_StrCmp(name, "--add-modules") == 0 ||
713 JLI_StrCmp(name, "--enable-native-access") == 0 ||
714 JLI_StrCmp(name, "--limit-modules") == 0 ||
715 JLI_StrCmp(name, "--add-exports") == 0 ||
716 JLI_StrCmp(name, "--add-opens") == 0 ||
717 JLI_StrCmp(name, "--add-reads") == 0 ||
718 JLI_StrCmp(name, "--patch-module") == 0;
719 }
720
721 static jboolean
722 IsLongFormModuleOption(const char* name) {
723 return JLI_StrCCmp(name, "--module-path=") == 0 ||
724 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 ||
725 JLI_StrCCmp(name, "--add-modules=") == 0 ||
726 JLI_StrCCmp(name, "--enable-native-access=") == 0 ||
727 JLI_StrCCmp(name, "--limit-modules=") == 0 ||
728 JLI_StrCCmp(name, "--add-exports=") == 0 ||
729 JLI_StrCCmp(name, "--add-reads=") == 0 ||
730 JLI_StrCCmp(name, "--patch-module=") == 0;
731 }
732
733 /*
734 * Test if the given name has a white space option.
735 */
736 jboolean
737 IsWhiteSpaceOption(const char* name) {
738 return IsModuleOption(name) ||
739 IsLauncherOption(name);
740 }
741
742 /*
743 * Check if it is OK to set the mode.
744 * If the mode was previously set, and should not be changed,
745 * a fatal error is reported.
746 */
747 static int
748 checkMode(int mode, int newMode, const char *arg) {
749 if (mode == LM_SOURCE) {
750 JLI_ReportErrorMessage(ARG_ERROR14, arg);
751 exit(1);
752 }
753 return newMode;
754 }
755
756 /*
757 * Test if an arg identifies a source file.
758 */
759 static jboolean IsSourceFile(const char *arg) {
760 struct stat st;
761 return (JLI_HasSuffix(arg, ".java") && stat(arg, &st) == 0);
762 }
763
764 /*
765 * Checks the command line options to find which JVM type was
766 * specified. If no command line option was given for the JVM type,
767 * the default type is used. The environment variable
768 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also
769 * checked as ways of specifying which JVM type to invoke.
770 */
771 char *
772 CheckJvmType(int *pargc, char ***argv, jboolean speculative) {
773 int i, argi;
774 int argc;
775 char **newArgv;
776 int newArgvIdx = 0;
777 int isVMType;
778 int jvmidx = -1;
779 char *jvmtype = getenv("JDK_ALTERNATE_VM");
780
781 argc = *pargc;
782
783 /* To make things simpler we always copy the argv array */
784 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *));
785
786 /* The program name is always present */
787 newArgv[newArgvIdx++] = (*argv)[0];
788
789 for (argi = 1; argi < argc; argi++) {
790 char *arg = (*argv)[argi];
791 isVMType = 0;
792
793 if (IsJavaArgs()) {
794 if (arg[0] != '-') {
795 newArgv[newArgvIdx++] = arg;
796 continue;
797 }
798 } else {
799 if (IsWhiteSpaceOption(arg)) {
800 newArgv[newArgvIdx++] = arg;
801 argi++;
802 if (argi < argc) {
803 newArgv[newArgvIdx++] = (*argv)[argi];
804 }
805 continue;
806 }
807 if (arg[0] != '-') break;
808 }
809
810 /* Did the user pass an explicit VM type? */
811 i = KnownVMIndex(arg);
812 if (i >= 0) {
813 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */
814 isVMType = 1;
815 *pargc = *pargc - 1;
816 }
817
818 /* Did the user specify an "alternate" VM? */
819 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) {
820 isVMType = 1;
821 jvmtype = arg+((arg[1]=='X')? 10 : 12);
822 jvmidx = -1;
823 }
824
825 if (!isVMType) {
826 newArgv[newArgvIdx++] = arg;
827 }
828 }
829
830 /*
831 * Finish copying the arguments if we aborted the above loop.
832 * NOTE that if we aborted via "break" then we did NOT copy the
833 * last argument above, and in addition argi will be less than
834 * argc.
835 */
836 while (argi < argc) {
837 newArgv[newArgvIdx++] = (*argv)[argi];
838 argi++;
839 }
840
841 /* argv is null-terminated */
842 newArgv[newArgvIdx] = 0;
843
844 /* Copy back argv */
845 *argv = newArgv;
846 *pargc = newArgvIdx;
847
848 /* use the default VM type if not specified (no alias processing) */
849 if (jvmtype == NULL) {
850 char* result = knownVMs[0].name+1;
851 JLI_TraceLauncher("Default VM: %s\n", result);
852 return result;
853 }
854
855 /* if using an alternate VM, no alias processing */
856 if (jvmidx < 0)
857 return jvmtype;
858
859 /* Resolve aliases first */
860 {
861 int loopCount = 0;
862 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) {
863 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias);
864
865 if (loopCount > knownVMsCount) {
866 if (!speculative) {
867 JLI_ReportErrorMessage(CFG_ERROR1);
868 exit(1);
869 } else {
870 return "ERROR";
871 /* break; */
872 }
873 }
874
875 if (nextIdx < 0) {
876 if (!speculative) {
877 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias);
878 exit(1);
879 } else {
880 return "ERROR";
881 }
882 }
883 jvmidx = nextIdx;
884 jvmtype = knownVMs[jvmidx].name+1;
885 loopCount++;
886 }
887 }
888
889 switch (knownVMs[jvmidx].flag) {
890 case VM_WARN:
891 if (!speculative) {
892 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1);
893 }
894 /* fall through */
895 case VM_IGNORE:
896 jvmtype = knownVMs[jvmidx=0].name + 1;
897 /* fall through */
898 case VM_KNOWN:
899 break;
900 case VM_ERROR:
901 if (!speculative) {
902 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype);
903 exit(1);
904 } else {
905 return "ERROR";
906 }
907 }
908
909 return jvmtype;
910 }
911
912 /* copied from HotSpot function "atomll()" */
913 static int
914 parse_size(const char *s, jlong *result) {
915 jlong n = 0;
916 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n);
917 if (args_read != 1) {
918 return 0;
919 }
920 while (*s != '\0' && *s >= '0' && *s <= '9') {
921 s++;
922 }
923 // 4705540: illegal if more characters are found after the first non-digit
924 if (JLI_StrLen(s) > 1) {
925 return 0;
926 }
927 switch (*s) {
928 case 'T': case 't':
929 *result = n * GB * KB;
930 return 1;
931 case 'G': case 'g':
932 *result = n * GB;
933 return 1;
934 case 'M': case 'm':
935 *result = n * MB;
936 return 1;
937 case 'K': case 'k':
938 *result = n * KB;
939 return 1;
940 case '\0':
941 *result = n;
942 return 1;
943 default:
944 /* Create JVM with default stack and let VM handle malformed -Xss string*/
945 return 0;
946 }
947 }
948
949 /*
950 * Adds a new VM option with the given name and value.
951 */
952 void
953 AddOption(char *str, void *info)
954 {
955 /*
956 * Expand options array if needed to accommodate at least one more
957 * VM option.
958 */
959 if (numOptions >= maxOptions) {
960 if (options == 0) {
961 maxOptions = 4;
962 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
963 } else {
964 JavaVMOption *tmp;
965 maxOptions *= 2;
966 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
967 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
968 JLI_MemFree(options);
969 options = tmp;
970 }
971 }
972 options[numOptions].optionString = str;
973 options[numOptions++].extraInfo = info;
974
975 /*
976 * -Xss is used both by the JVM and here to establish the stack size of the thread
977 * created to launch the JVM. In the latter case we need to ensure we don't go
978 * below the minimum stack size allowed. If -Xss is zero that tells the JVM to use
979 * 'default' sizes (either from JVM or system configuration, e.g. 'ulimit -s' on linux),
980 * and is not itself a small stack size that will be rejected. So we ignore -Xss0 here.
981 */
982 if (JLI_StrCCmp(str, "-Xss") == 0) {
983 jlong tmp;
984 if (parse_size(str + 4, &tmp)) {
985 threadStackSize = tmp;
986 if (threadStackSize > 0 && threadStackSize < (jlong)STACK_SIZE_MINIMUM) {
987 threadStackSize = STACK_SIZE_MINIMUM;
988 }
989 }
990 }
991
992 if (JLI_StrCCmp(str, "-Xmx") == 0) {
993 jlong tmp;
994 if (parse_size(str + 4, &tmp)) {
995 maxHeapSize = tmp;
996 }
997 }
998
999 if (JLI_StrCCmp(str, "-Xms") == 0) {
1000 jlong tmp;
1001 if (parse_size(str + 4, &tmp)) {
1002 initialHeapSize = tmp;
1003 }
1004 }
1005 }
1006
1007 static void
1008 SetClassPath(const char *s)
1009 {
1010 char *def;
1011 const char *orig = s;
1012 static const char format[] = "-Djava.class.path=%s";
1013 /*
1014 * usually we should not get a null pointer, but there are cases where
1015 * we might just get one, in which case we simply ignore it, and let the
1016 * caller deal with it
1017 */
1018 if (s == NULL)
1019 return;
1020 s = JLI_WildcardExpandClasspath(s);
1021 if (s == NULL)
1022 return;
1023 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s))
1024 // s is became corrupted after expanding wildcards
1025 return;
1026 size_t defSize = sizeof(format)
1027 - 2 /* strlen("%s") */
1028 + JLI_StrLen(s);
1029 def = JLI_MemAlloc(defSize);
1030 snprintf(def, defSize, format, s);
1031 AddOption(def, NULL);
1032 if (s != orig)
1033 JLI_MemFree((char *) s);
1034 _have_classpath = JNI_TRUE;
1035 }
1036
1037 static void
1038 AddLongFormOption(const char *option, const char *arg)
1039 {
1040 static const char format[] = "%s=%s";
1041 char *def;
1042 size_t def_len;
1043
1044 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1;
1045 def = JLI_MemAlloc(def_len);
1046 JLI_Snprintf(def, def_len, format, option, arg);
1047 AddOption(def, NULL);
1048 }
1049
1050 static void
1051 SetMainModule(const char *s)
1052 {
1053 static const char format[] = "-Djdk.module.main=%s";
1054 char* slash = JLI_StrChr(s, '/');
1055 size_t s_len, def_len;
1056 char *def;
1057
1058 /* value may be <module> or <module>/<mainclass> */
1059 if (slash == NULL) {
1060 s_len = JLI_StrLen(s);
1061 } else {
1062 s_len = (size_t) (slash - s);
1063 }
1064 def_len = sizeof(format)
1065 - 2 /* strlen("%s") */
1066 + s_len;
1067 def = JLI_MemAlloc(def_len);
1068 JLI_Snprintf(def, def_len, format, s);
1069 AddOption(def, NULL);
1070 }
1071
1072 /*
1073 * Test if the current argv is an option, i.e. with a leading `-`
1074 * and followed with an argument without a leading `-`.
1075 */
1076 static jboolean
1077 IsOptionWithArgument(int argc, char** argv) {
1078 char* option;
1079 char* arg;
1080
1081 if (argc <= 1)
1082 return JNI_FALSE;
1083
1084 option = *argv;
1085 arg = *(argv+1);
1086 return *option == '-' && *arg != '-';
1087 }
1088
1089 /*
1090 * Gets the option, and its argument if the option has an argument.
1091 * It will update *pargc, **pargv to the next option.
1092 */
1093 static int
1094 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) {
1095 int argc = *pargc;
1096 char** argv = *pargv;
1097 char* arg = *argv;
1098
1099 char* option = arg;
1100 char* value = NULL;
1101 char* equals = NULL;
1102 int kind = LAUNCHER_OPTION;
1103 jboolean has_arg = JNI_FALSE;
1104
1105 // check if this option may be a white-space option with an argument
1106 has_arg = IsOptionWithArgument(argc, argv);
1107
1108 argv++; --argc;
1109 if (IsLauncherOption(arg)) {
1110 if (has_arg) {
1111 value = *argv;
1112 argv++; --argc;
1113 }
1114 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION
1115 : LAUNCHER_OPTION_WITH_ARGUMENT;
1116 } else if (IsModuleOption(arg)) {
1117 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1118 if (has_arg) {
1119 value = *argv;
1120 argv++; --argc;
1121 }
1122
1123 /*
1124 * Support short form alias
1125 */
1126 if (JLI_StrCmp(arg, "-p") == 0) {
1127 option = "--module-path";
1128 }
1129
1130 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) {
1131 value = equals+1;
1132 if (JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1133 JLI_StrCCmp(arg, "--module=") == 0 ||
1134 JLI_StrCCmp(arg, "--class-path=") == 0||
1135 JLI_StrCCmp(arg, "--source=") == 0) {
1136 kind = LAUNCHER_OPTION_WITH_ARGUMENT;
1137 } else {
1138 kind = VM_LONG_OPTION;
1139 }
1140 }
1141
1142 *pargc = argc;
1143 *pargv = argv;
1144 *poption = option;
1145 *pvalue = value;
1146 return kind;
1147 }
1148
1149 /*
1150 * Parses command line arguments. Returns JNI_FALSE if launcher
1151 * should exit without starting vm, returns JNI_TRUE if vm needs
1152 * to be started to process given options. *pret (the launcher
1153 * process return value) is set to 0 for a normal exit.
1154 */
1155 static jboolean
1156 ParseArguments(int *pargc, char ***pargv,
1157 int *pmode, char **pwhat,
1158 int *pret)
1159 {
1160 int argc = *pargc;
1161 char **argv = *pargv;
1162 int mode = LM_UNKNOWN;
1163 char *arg = NULL;
1164 bool headless = false;
1165 char *splash_file_path = NULL; // value of "-splash:" option
1166
1167 *pret = 0;
1168
1169 while (argc > 0 && *(arg = *argv) == '-') {
1170 char *option = NULL;
1171 char *value = NULL;
1172 int kind = GetOpt(&argc, &argv, &option, &value);
1173 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0;
1174 jboolean has_arg_any_len = value != NULL;
1175
1176 /*
1177 * Option to set main entry point
1178 */
1179 if (JLI_StrCmp(arg, "-jar") == 0) {
1180 ARG_CHECK(argc, ARG_ERROR2, arg);
1181 mode = checkMode(mode, LM_JAR, arg);
1182 } else if (JLI_StrCmp(arg, "--module") == 0 ||
1183 JLI_StrCCmp(arg, "--module=") == 0 ||
1184 JLI_StrCmp(arg, "-m") == 0) {
1185 REPORT_ERROR (has_arg, ARG_ERROR5, arg);
1186 SetMainModule(value);
1187 mode = checkMode(mode, LM_MODULE, arg);
1188 if (has_arg) {
1189 *pwhat = value;
1190 break;
1191 }
1192 } else if (JLI_StrCmp(arg, "--source") == 0 ||
1193 JLI_StrCCmp(arg, "--source=") == 0) {
1194 REPORT_ERROR (has_arg, ARG_ERROR13, arg);
1195 mode = LM_SOURCE;
1196 if (has_arg) {
1197 const char *prop = "-Djdk.internal.javac.source=";
1198 size_t size = JLI_StrLen(prop) + JLI_StrLen(value) + 1;
1199 char *propValue = (char *)JLI_MemAlloc(size);
1200 JLI_Snprintf(propValue, size, "%s%s", prop, value);
1201 AddOption(propValue, NULL);
1202 }
1203 } else if (JLI_StrCmp(arg, "--class-path") == 0 ||
1204 JLI_StrCCmp(arg, "--class-path=") == 0 ||
1205 JLI_StrCmp(arg, "-classpath") == 0 ||
1206 JLI_StrCmp(arg, "-cp") == 0) {
1207 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg);
1208 SetClassPath(value);
1209 } else if (JLI_StrCmp(arg, "--list-modules") == 0) {
1210 listModules = JNI_TRUE;
1211 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) {
1212 showResolvedModules = JNI_TRUE;
1213 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) {
1214 AddOption("-Djdk.module.validation=true", NULL);
1215 validateModules = JNI_TRUE;
1216 } else if (JLI_StrCmp(arg, "--describe-module") == 0 ||
1217 JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1218 JLI_StrCmp(arg, "-d") == 0) {
1219 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg);
1220 describeModule = value;
1221 /*
1222 * Parse white-space options
1223 */
1224 } else if (has_arg) {
1225 if (kind == VM_LONG_OPTION) {
1226 AddOption(option, NULL);
1227 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) {
1228 AddLongFormOption(option, value);
1229 }
1230 /*
1231 * Error missing argument
1232 */
1233 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 ||
1234 JLI_StrCmp(arg, "-p") == 0 ||
1235 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) {
1236 REPORT_ERROR (has_arg, ARG_ERROR4, arg);
1237
1238 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) {
1239 REPORT_ERROR (has_arg, ARG_ERROR6, arg);
1240 /*
1241 * The following cases will cause the argument parsing to stop
1242 */
1243 } else if (JLI_StrCmp(arg, "-help") == 0 ||
1244 JLI_StrCmp(arg, "-h") == 0 ||
1245 JLI_StrCmp(arg, "-?") == 0) {
1246 printUsageKind = HELP_FULL;
1247 return JNI_TRUE;
1248 } else if (JLI_StrCmp(arg, "--help") == 0) {
1249 printUsageKind = HELP_FULL;
1250 printTo = USE_STDOUT;
1251 return JNI_TRUE;
1252 } else if (JLI_StrCmp(arg, "-version") == 0) {
1253 printVersion = JNI_TRUE;
1254 return JNI_TRUE;
1255 } else if (JLI_StrCmp(arg, "--version") == 0) {
1256 printVersion = JNI_TRUE;
1257 printTo = USE_STDOUT;
1258 return JNI_TRUE;
1259 } else if (JLI_StrCmp(arg, "-showversion") == 0) {
1260 showVersion = JNI_TRUE;
1261 } else if (JLI_StrCmp(arg, "--show-version") == 0) {
1262 showVersion = JNI_TRUE;
1263 printTo = USE_STDOUT;
1264 } else if (JLI_StrCmp(arg, "--dry-run") == 0) {
1265 dryRun = JNI_TRUE;
1266 } else if (JLI_StrCmp(arg, "-X") == 0) {
1267 printUsageKind = HELP_EXTRA;
1268 return JNI_TRUE;
1269 } else if (JLI_StrCmp(arg, "--help-extra") == 0) {
1270 printUsageKind = HELP_EXTRA;
1271 printTo = USE_STDOUT;
1272 return JNI_TRUE;
1273 /*
1274 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT.
1275 * In the latter case, any SUBOPT value not recognized will default to "all"
1276 */
1277 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 ||
1278 JLI_StrCCmp(arg, "-XshowSettings:") == 0) {
1279 showSettings = arg;
1280 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) {
1281 AddOption("-Dsun.java.launcher.diag=true", NULL);
1282 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) {
1283 AddOption("-Djdk.module.showModuleResolution=true", NULL);
1284 /*
1285 * The following case provide backward compatibility with old-style
1286 * command line options.
1287 */
1288 } else if (JLI_StrCmp(arg, "-fullversion") == 0) {
1289 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion());
1290 return JNI_FALSE;
1291 } else if (JLI_StrCmp(arg, "--full-version") == 0) {
1292 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion());
1293 return JNI_FALSE;
1294 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) {
1295 JLI_ReportErrorMessage(ARG_DEPRECATED, "-verbosegc");
1296 AddOption("-verbose:gc", NULL);
1297 } else if (JLI_StrCmp(arg, "-debug") == 0) {
1298 JLI_ReportErrorMessage(ARG_DEPRECATED, "-debug");
1299 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) {
1300 JLI_ReportErrorMessage(ARG_DEPRECATED, "-noclassgc");
1301 AddOption("-Xnoclassgc", NULL);
1302 } else if (JLI_StrCmp(arg, "-verify") == 0) {
1303 JLI_ReportErrorMessage(ARG_DEPRECATED, "-verify");
1304 AddOption("-Xverify:all", NULL);
1305 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) {
1306 JLI_ReportErrorMessage(ARG_DEPRECATED, "-verifyremote");
1307 AddOption("-Xverify:remote", NULL);
1308 } else if (JLI_StrCmp(arg, "-noverify") == 0) {
1309 /*
1310 * Note that no 'deprecated' message is needed here because the VM
1311 * issues 'deprecated' messages for -noverify and -Xverify:none.
1312 */
1313 AddOption("-Xverify:none", NULL);
1314 } else if (JLI_StrCCmp(arg, "-ss") == 0 ||
1315 JLI_StrCCmp(arg, "-ms") == 0 ||
1316 JLI_StrCCmp(arg, "-mx") == 0) {
1317 JLI_ReportErrorMessage("Warning: %.3s option is deprecated"
1318 " and may be removed in a future release.", arg);
1319 size_t tmpSize = JLI_StrLen(arg) + 6;
1320 char *tmp = JLI_MemAlloc(tmpSize);
1321 snprintf(tmp, tmpSize, "-X%s", arg + 1); /* skip '-' */
1322 AddOption(tmp, NULL);
1323 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1324 splash_file_path = arg + 8;
1325 } else if (JLI_StrCmp(arg, "--disable-@files") == 0) {
1326 ; /* Ignore --disable-@files option already handled */
1327 } else if (ProcessPlatformOption(arg)) {
1328 ; /* Processing of platform dependent options */
1329 } else {
1330 /* java.class.path set on the command line */
1331 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) {
1332 _have_classpath = JNI_TRUE;
1333 } else if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) {
1334 /*
1335 * Checking for headless toolkit option in the same way as AWT does:
1336 * "true" means true and any other value means false
1337 */
1338 headless = true;
1339 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) {
1340 headless = false;
1341 }
1342 AddOption(arg, NULL);
1343 }
1344
1345 /*
1346 * Check for CDS option
1347 */
1348 if (JLI_StrCmp(arg, "-Xshare:dump") == 0) {
1349 dumpSharedSpaces = JNI_TRUE;
1350 }
1351 if (JLI_StrCmp(arg, "-XX:AOTMode=create") == 0) {
1352 // Alias for -Xshare:dump
1353 dumpSharedSpaces = JNI_TRUE;
1354 }
1355 }
1356
1357 if (*pwhat == NULL && --argc >= 0) {
1358 *pwhat = *argv++;
1359 }
1360
1361 if (*pwhat == NULL) {
1362 /* LM_UNKNOWN okay for options that exit */
1363 if (!listModules && !describeModule && !validateModules && !dumpSharedSpaces) {
1364 *pret = 1;
1365 printUsageKind = HELP_CONCISE;
1366 }
1367 } else if (mode == LM_UNKNOWN) {
1368 if (!_have_classpath) {
1369 SetClassPath(".");
1370 }
1371 /* If neither of -m, -jar, --source option is set, then the
1372 * launcher mode is LM_UNKNOWN. In such cases, we determine the
1373 * mode as LM_CLASS or LM_SOURCE per the input file. */
1374 mode = IsSourceFile(arg) ? LM_SOURCE : LM_CLASS;
1375 } else if (mode == LM_CLASS && IsSourceFile(arg)) {
1376 /* override LM_CLASS mode if given a source file */
1377 mode = LM_SOURCE;
1378 }
1379
1380 if (mode == LM_SOURCE) {
1381 // communicate the launcher mode to runtime
1382 AddOption("-Dsun.java.launcher.mode=source", NULL);
1383 AddOption("--add-modules=ALL-DEFAULT", NULL);
1384 *pwhat = SOURCE_LAUNCHER_MAIN_ENTRY;
1385 // adjust (argc, argv) so that the name of the source file
1386 // is included in the args passed to the source launcher
1387 // main entry class
1388 *pargc = argc + 1;
1389 *pargv = argv - 1;
1390 } else {
1391 if (argc >= 0) {
1392 *pargc = argc;
1393 *pargv = argv;
1394 }
1395 }
1396
1397 *pmode = mode;
1398
1399 if (!headless) {
1400 char *jar_path = NULL;
1401 if (mode == LM_JAR) {
1402 jar_path = *pwhat;
1403 }
1404 // Not in headless mode. We now set a couple of env variables that
1405 // will be used later by ShowSplashScreen().
1406 SetupSplashScreenEnvVars(splash_file_path, jar_path);
1407 }
1408
1409 return JNI_TRUE;
1410 }
1411
1412 /*
1413 * Sets the relevant environment variables that are subsequently used by
1414 * the ShowSplashScreen() function. The splash_file_path and jar_path parameters
1415 * are used to determine which environment variables to set.
1416 * The splash_file_path is the value that was provided to the "-splash:" option
1417 * when launching java. It may be null, which implies the "-splash:" option wasn't used.
1418 * The jar_path is the value that was provided to the "-jar" option when launching java.
1419 * It too may be null, which implies the "-jar" option wasn't used.
1420 */
1421 static void
1422 SetupSplashScreenEnvVars(const char *splash_file_path, char *jar_path) {
1423 // Command line specified "-splash:" takes priority over manifest one.
1424 if (splash_file_path) {
1425 // We set up the splash file name as a env variable which then gets
1426 // used when showing the splash screen in ShowSplashScreen().
1427
1428 // create the string of the form _JAVA_SPLASH_FILE=<val>
1429 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")
1430 + JLI_StrLen(splash_file_path) + 1);
1431 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
1432 JLI_StrCat(splash_file_entry, splash_file_path);
1433 putenv(splash_file_entry);
1434 return;
1435 }
1436 if (!jar_path) {
1437 // no jar to look into for "SplashScreen-Image" manifest attribute
1438 return;
1439 }
1440 // parse the jar's manifest to find any "SplashScreen-Image"
1441 int res = 0;
1442 manifest_info info;
1443 if ((res = JLI_ParseManifest(jar_path, &info)) != 0) {
1444 JLI_FreeManifest(); // cleanup any manifest structure
1445 if (res == -1) {
1446 JLI_ReportErrorMessage(JAR_ERROR2, jar_path);
1447 } else {
1448 JLI_ReportErrorMessage(JAR_ERROR3, jar_path);
1449 }
1450 exit(1);
1451 }
1452 if (!info.splashscreen_image_file_name) {
1453 JLI_FreeManifest(); // cleanup the manifest structure
1454 // no "SplashScreen-Image" in jar's manifest
1455 return;
1456 }
1457 // The jar's manifest had a "Splashscreen-Image" specified. We set up the jar entry name
1458 // and the jar file name as env variables which then get used when showing the splash screen
1459 // in ShowSplashScreen().
1460
1461 // create the string of the form _JAVA_SPLASH_FILE=<val>
1462 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")
1463 + JLI_StrLen(info.splashscreen_image_file_name) + 1);
1464 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
1465 JLI_StrCat(splash_file_entry, info.splashscreen_image_file_name);
1466 putenv(splash_file_entry);
1467 // create the string of the form _JAVA_SPLASH_JAR=<val>
1468 splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=") + JLI_StrLen(jar_path) + 1);
1469 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
1470 JLI_StrCat(splash_jar_entry, jar_path);
1471 putenv(splash_jar_entry);
1472 JLI_FreeManifest(); // cleanup the manifest structure
1473 }
1474
1475 /*
1476 * Initializes the Java Virtual Machine. Also frees options array when
1477 * finished.
1478 */
1479 static jboolean
1480 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1481 {
1482 JavaVMInitArgs args;
1483 jint r;
1484
1485 memset(&args, 0, sizeof(args));
1486 args.version = JNI_VERSION_1_2;
1487 args.nOptions = numOptions;
1488 args.options = options;
1489 args.ignoreUnrecognized = JNI_FALSE;
1490
1491 if (JLI_IsTraceLauncher()) {
1492 int i = 0;
1493 printf("JavaVM args:\n ");
1494 printf("version 0x%08lx, ", (long)args.version);
1495 printf("ignoreUnrecognized is %s, ",
1496 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1497 printf("nOptions is %ld\n", (long)args.nOptions);
1498 for (i = 0; i < numOptions; i++)
1499 printf(" option[%2d] = '%s'\n",
1500 i, args.options[i].optionString);
1501 }
1502
1503 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1504 JLI_MemFree(options);
1505 return r == JNI_OK;
1506 }
1507
1508 static jclass helperClass = NULL;
1509
1510 jclass
1511 GetLauncherHelperClass(JNIEnv *env)
1512 {
1513 if (helperClass == NULL) {
1514 NULL_CHECK0(helperClass = FindBootStrapClass(env,
1515 "sun/launcher/LauncherHelper"));
1516 }
1517 return helperClass;
1518 }
1519
1520 static jmethodID makePlatformStringMID = NULL;
1521 /*
1522 * Returns a new Java string object for the specified platform string.
1523 */
1524 static jstring
1525 NewPlatformString(JNIEnv *env, char *s)
1526 {
1527 int len = (int)JLI_StrLen(s);
1528 jbyteArray ary;
1529 jclass cls = GetLauncherHelperClass(env);
1530 NULL_CHECK0(cls);
1531 if (s == NULL)
1532 return 0;
1533
1534 ary = (*env)->NewByteArray(env, len);
1535 if (ary != 0) {
1536 jstring str = 0;
1537 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1538 if (!(*env)->ExceptionCheck(env)) {
1539 if (makePlatformStringMID == NULL) {
1540 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env,
1541 cls, "makePlatformString", "(Z[B)Ljava/lang/String;"));
1542 }
1543 str = (*env)->CallStaticObjectMethod(env, cls,
1544 makePlatformStringMID, USE_STDERR, ary);
1545 CHECK_EXCEPTION_RETURN_VALUE(0);
1546 (*env)->DeleteLocalRef(env, ary);
1547 return str;
1548 }
1549 }
1550 return 0;
1551 }
1552
1553 /*
1554 * Returns a new array of Java string objects for the specified
1555 * array of platform strings.
1556 */
1557 jobjectArray
1558 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1559 {
1560 jarray cls;
1561 jarray ary;
1562 int i;
1563
1564 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String"));
1565 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1566 CHECK_EXCEPTION_RETURN_VALUE(0);
1567 for (i = 0; i < strc; i++) {
1568 jstring str = NewPlatformString(env, *strv++);
1569 NULL_CHECK0(str);
1570 (*env)->SetObjectArrayElement(env, ary, i, str);
1571 (*env)->DeleteLocalRef(env, str);
1572 }
1573 return ary;
1574 }
1575
1576 /*
1577 * Calls LauncherHelper::checkAndLoadMain to verify that the main class
1578 * is present, it is ok to load the main class and then load the main class.
1579 * For more details refer to the java implementation.
1580 */
1581 static jclass
1582 LoadMainClass(JNIEnv *env, int mode, char *name)
1583 {
1584 jmethodID mid;
1585 jstring str;
1586 jobject result;
1587 jlong start = 0, end = 0;
1588 jclass cls = GetLauncherHelperClass(env);
1589 NULL_CHECK0(cls);
1590 if (JLI_IsTraceLauncher()) {
1591 start = CurrentTimeMicros();
1592 }
1593 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1594 "checkAndLoadMain",
1595 "(ZILjava/lang/String;)Ljava/lang/Class;"));
1596
1597 NULL_CHECK0(str = NewPlatformString(env, name));
1598 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid,
1599 USE_STDERR, mode, str));
1600
1601 if (JLI_IsTraceLauncher()) {
1602 end = CurrentTimeMicros();
1603 printf("%ld micro seconds to load main class\n", (long)(end-start));
1604 printf("----%s----\n", JLDEBUG_ENV_ENTRY);
1605 }
1606
1607 return (jclass)result;
1608 }
1609
1610 static jclass
1611 GetApplicationClass(JNIEnv *env)
1612 {
1613 jmethodID mid;
1614 jclass appClass;
1615 jclass cls = GetLauncherHelperClass(env);
1616 NULL_CHECK0(cls);
1617 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1618 "getApplicationClass",
1619 "()Ljava/lang/Class;"));
1620
1621 appClass = (*env)->CallStaticObjectMethod(env, cls, mid);
1622 CHECK_EXCEPTION_RETURN_VALUE(0);
1623 return appClass;
1624 }
1625
1626 static char* expandWildcardOnLongOpt(char* arg) {
1627 char *p, *value;
1628 size_t optLen, valueLen;
1629 p = JLI_StrChr(arg, '=');
1630
1631 if (p == NULL || p[1] == '\0') {
1632 JLI_ReportErrorMessage(ARG_ERROR1, arg);
1633 exit(1);
1634 }
1635 p++;
1636 value = (char *) JLI_WildcardExpandClasspath(p);
1637 if (p == value) {
1638 // no wildcard
1639 return arg;
1640 }
1641
1642 optLen = p - arg;
1643 valueLen = JLI_StrLen(value);
1644 p = JLI_MemAlloc(optLen + valueLen + 1);
1645 memcpy(p, arg, optLen);
1646 memcpy(p + optLen, value, valueLen);
1647 p[optLen + valueLen] = '\0';
1648 return p;
1649 }
1650
1651 /*
1652 * For tools, convert command line args thus:
1653 * javac -cp foo:foo/"*" -J-ms32m ...
1654 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1655 *
1656 * Takes 4 parameters, and returns the populated arguments
1657 */
1658 static void
1659 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv)
1660 {
1661 int argc = *pargc;
1662 char **argv = *pargv;
1663 int nargc = argc + jargc;
1664 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1665 int i;
1666
1667 *pargc = nargc;
1668 *pargv = nargv;
1669
1670 /* Copy the VM arguments (i.e. prefixed with -J) */
1671 for (i = 0; i < jargc; i++) {
1672 const char *arg = jargv[i];
1673 if (arg[0] == '-' && arg[1] == 'J') {
1674 assert(arg[2] != '\0' && "Invalid JAVA_ARGS or EXTRA_JAVA_ARGS defined by build");
1675 *nargv++ = JLI_StringDup(arg + 2);
1676 }
1677 }
1678
1679 for (i = 0; i < argc; i++) {
1680 char *arg = argv[i];
1681 if (arg[0] == '-' && arg[1] == 'J') {
1682 if (arg[2] == '\0') {
1683 JLI_ReportErrorMessage(ARG_ERROR3);
1684 exit(1);
1685 }
1686 *nargv++ = arg + 2;
1687 }
1688 }
1689
1690 /* Copy the rest of the arguments */
1691 for (i = 0; i < jargc ; i++) {
1692 const char *arg = jargv[i];
1693 if (arg[0] != '-' || arg[1] != 'J') {
1694 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg);
1695 }
1696 }
1697 for (i = 0; i < argc; i++) {
1698 char *arg = argv[i];
1699 if (arg[0] == '-') {
1700 if (arg[1] == 'J')
1701 continue;
1702 if (IsWildCardEnabled()) {
1703 if (IsClassPathOption(arg) && i < argc - 1) {
1704 *nargv++ = arg;
1705 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1706 i++;
1707 continue;
1708 }
1709 if (JLI_StrCCmp(arg, "--class-path=") == 0) {
1710 *nargv++ = expandWildcardOnLongOpt(arg);
1711 continue;
1712 }
1713 }
1714 }
1715 *nargv++ = arg;
1716 }
1717 *nargv = 0;
1718 }
1719
1720 /*
1721 * For our tools, we try to add 3 VM options:
1722 * -Denv.class.path=<envcp>
1723 * -Dapplication.home=<apphome>
1724 * -Djava.class.path=<appcp>
1725 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1726 * tells javac where to find binary classes through this environment
1727 * variable. Notice that users will be able to compile against our
1728 * tools classes (sun.tools.javac.Main) only if they explicitly add
1729 * tools.jar to CLASSPATH.
1730 * <apphome> is the directory where the application is installed.
1731 * <appcp> is the classpath to where our apps' classfiles are.
1732 */
1733 static jboolean
1734 AddApplicationOptions(int cpathc, const char **cpathv)
1735 {
1736 char *envcp, *appcp, *apphome;
1737 char home[MAXPATHLEN]; /* application home */
1738 char separator[] = { PATH_SEPARATOR, '\0' };
1739 int size, i;
1740
1741 {
1742 const char *s = getenv("CLASSPATH");
1743 if (s) {
1744 s = (char *) JLI_WildcardExpandClasspath(s);
1745 /* 40 for -Denv.class.path= */
1746 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow
1747 size_t envcpSize = JLI_StrLen(s) + 40;
1748 envcp = (char *)JLI_MemAlloc(envcpSize);
1749 snprintf(envcp, envcpSize, "-Denv.class.path=%s", s);
1750 AddOption(envcp, NULL);
1751 }
1752 }
1753 }
1754
1755 if (!GetApplicationHome(home, sizeof(home))) {
1756 JLI_ReportErrorMessage(CFG_ERROR5);
1757 return JNI_FALSE;
1758 }
1759
1760 /* 40 for '-Dapplication.home=' */
1761 size_t apphomeSize = JLI_StrLen(home) + 40;
1762 apphome = (char *)JLI_MemAlloc(apphomeSize);
1763 snprintf(apphome, apphomeSize, "-Dapplication.home=%s", home);
1764 AddOption(apphome, NULL);
1765
1766 /* How big is the application's classpath? */
1767 if (cpathc > 0) {
1768 size = 40; /* 40: "-Djava.class.path=" */
1769 for (i = 0; i < cpathc; i++) {
1770 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */
1771 }
1772 appcp = (char *)JLI_MemAlloc(size + 1);
1773 JLI_StrCpy(appcp, "-Djava.class.path=");
1774 for (i = 0; i < cpathc; i++) {
1775 JLI_StrCat(appcp, home); /* c:\program files\myapp */
1776 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */
1777 JLI_StrCat(appcp, separator); /* ; */
1778 }
1779 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */
1780 AddOption(appcp, NULL);
1781 }
1782 return JNI_TRUE;
1783 }
1784
1785 /*
1786 * inject the -Dsun.java.command pseudo property into the args structure
1787 * this pseudo property is used in the HotSpot VM to expose the
1788 * Java class name and arguments to the main method to the VM. The
1789 * HotSpot VM uses this pseudo property to store the Java class name
1790 * (or jar file name) and the arguments to the class's main method
1791 * to the instrumentation memory region. The sun.java.command pseudo
1792 * property is not exported by HotSpot to the Java layer.
1793 */
1794 void
1795 SetJavaCommandLineProp(char *what, int argc, char **argv)
1796 {
1797
1798 int i = 0;
1799 size_t len = 0;
1800 char* javaCommand = NULL;
1801 char* dashDstr = "-Dsun.java.command=";
1802
1803 if (what == NULL) {
1804 /* unexpected, one of these should be set. just return without
1805 * setting the property
1806 */
1807 return;
1808 }
1809
1810 /* determine the amount of memory to allocate assuming
1811 * the individual components will be space separated
1812 */
1813 len = JLI_StrLen(what);
1814 for (i = 0; i < argc; i++) {
1815 len += JLI_StrLen(argv[i]) + 1;
1816 }
1817
1818 /* allocate the memory */
1819 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1);
1820
1821 /* build the -D string */
1822 *javaCommand = '\0';
1823 JLI_StrCat(javaCommand, dashDstr);
1824 JLI_StrCat(javaCommand, what);
1825
1826 for (i = 0; i < argc; i++) {
1827 /* the components of the string are space separated. In
1828 * the case of embedded white space, the relationship of
1829 * the white space separated components to their true
1830 * positional arguments will be ambiguous. This issue may
1831 * be addressed in a future release.
1832 */
1833 JLI_StrCat(javaCommand, " ");
1834 JLI_StrCat(javaCommand, argv[i]);
1835 }
1836
1837 AddOption(javaCommand, NULL);
1838 }
1839
1840 /*
1841 * JVM would like to know if it's created by a standard Sun launcher, or by
1842 * user native application, the following property indicates the former.
1843 */
1844 static void SetJavaLauncherProp() {
1845 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL);
1846 }
1847
1848 /*
1849 * Prints the version information from the java.version and other properties.
1850 */
1851 static void
1852 PrintJavaVersion(JNIEnv *env)
1853 {
1854 jclass ver;
1855 jmethodID print;
1856
1857 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps"));
1858 NULL_CHECK(print = (*env)->GetStaticMethodID(env,
1859 ver,
1860 "print",
1861 "(Z)V"
1862 )
1863 );
1864
1865 (*env)->CallStaticVoidMethod(env, ver, print, printTo);
1866 }
1867
1868 /*
1869 * Prints all the Java settings, see the java implementation for more details.
1870 */
1871 static void
1872 ShowSettings(JNIEnv *env, char *optString)
1873 {
1874 jmethodID showSettingsID;
1875 jstring joptString;
1876 jclass cls = GetLauncherHelperClass(env);
1877 NULL_CHECK(cls);
1878 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls,
1879 "showSettings", "(ZLjava/lang/String;JJJ)V"));
1880 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1881 (*env)->CallStaticVoidMethod(env, cls, showSettingsID,
1882 USE_STDERR,
1883 joptString,
1884 (jlong)initialHeapSize,
1885 (jlong)maxHeapSize,
1886 (jlong)threadStackSize);
1887 }
1888
1889 /**
1890 * Show resolved modules
1891 */
1892 static void
1893 ShowResolvedModules(JNIEnv *env)
1894 {
1895 jmethodID showResolvedModulesID;
1896 jclass cls = GetLauncherHelperClass(env);
1897 NULL_CHECK(cls);
1898 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls,
1899 "showResolvedModules", "()V"));
1900 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID);
1901 }
1902
1903 /**
1904 * List observable modules
1905 */
1906 static void
1907 ListModules(JNIEnv *env)
1908 {
1909 jmethodID listModulesID;
1910 jclass cls = GetLauncherHelperClass(env);
1911 NULL_CHECK(cls);
1912 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls,
1913 "listModules", "()V"));
1914 (*env)->CallStaticVoidMethod(env, cls, listModulesID);
1915 }
1916
1917 /**
1918 * Describe a module
1919 */
1920 static void
1921 DescribeModule(JNIEnv *env, char *optString)
1922 {
1923 jmethodID describeModuleID;
1924 jstring joptString = NULL;
1925 jclass cls = GetLauncherHelperClass(env);
1926 NULL_CHECK(cls);
1927 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls,
1928 "describeModule", "(Ljava/lang/String;)V"));
1929 NULL_CHECK(joptString = NewPlatformString(env, optString));
1930 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString);
1931 }
1932
1933 /*
1934 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java
1935 */
1936 static void
1937 PrintUsage(JNIEnv* env, enum HelpKind printUsageKind)
1938 {
1939 jmethodID initHelp, vmSelect, vmSynonym;
1940 jmethodID printHelp, printConciseUsageMessage, printXUsageMessage;
1941 jstring jprogname, vm1, vm2;
1942 int i;
1943 jclass cls = GetLauncherHelperClass(env);
1944 NULL_CHECK(cls);
1945 switch (printUsageKind) {
1946 case HELP_NONE: break;
1947 case HELP_CONCISE:
1948 NULL_CHECK(printConciseUsageMessage = (*env)->GetStaticMethodID(env, cls,
1949 "printConciseUsageMessage", "(Z)V"));
1950 (*env)->CallStaticVoidMethod(env, cls, printConciseUsageMessage, printTo);
1951 break;
1952 case HELP_EXTRA:
1953 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls,
1954 "printXUsageMessage", "(Z)V"));
1955 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo);
1956 break;
1957 case HELP_FULL:
1958 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls,
1959 "initHelpMessage", "(Ljava/lang/String;)V"));
1960
1961 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage",
1962 "(Ljava/lang/String;Ljava/lang/String;)V"));
1963
1964 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls,
1965 "appendVmSynonymMessage",
1966 "(Ljava/lang/String;Ljava/lang/String;)V"));
1967
1968 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls,
1969 "printHelpMessage", "(Z)V"));
1970
1971 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name));
1972
1973 /* Initialize the usage message with the usual preamble */
1974 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname);
1975 CHECK_EXCEPTION_RETURN();
1976
1977
1978 /* Assemble the other variant part of the usage */
1979 for (i=1; i<knownVMsCount; i++) {
1980 if (knownVMs[i].flag == VM_KNOWN) {
1981 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1982 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1));
1983 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
1984 CHECK_EXCEPTION_RETURN();
1985 }
1986 }
1987 for (i=1; i<knownVMsCount; i++) {
1988 if (knownVMs[i].flag == VM_ALIASED_TO) {
1989 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1990 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1));
1991 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2);
1992 CHECK_EXCEPTION_RETURN();
1993 }
1994 }
1995
1996 /* Complete the usage message and print to stderr*/
1997 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo);
1998 break;
1999 }
2000 return;
2001 }
2002
2003 /*
2004 * Read the jvm.cfg file and fill the knownJVMs[] array.
2005 *
2006 * The functionality of the jvm.cfg file is subject to change without
2007 * notice and the mechanism will be removed in the future.
2008 *
2009 * The lexical structure of the jvm.cfg file is as follows:
2010 *
2011 * jvmcfg := { vmLine }
2012 * vmLine := knownLine
2013 * | aliasLine
2014 * | warnLine
2015 * | ignoreLine
2016 * | errorLine
2017 * | predicateLine
2018 * | commentLine
2019 * knownLine := flag "KNOWN" EOL
2020 * warnLine := flag "WARN" EOL
2021 * ignoreLine := flag "IGNORE" EOL
2022 * errorLine := flag "ERROR" EOL
2023 * aliasLine := flag "ALIASED_TO" flag EOL
2024 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
2025 * commentLine := "#" text EOL
2026 * flag := "-" identifier
2027 *
2028 * The semantics are that when someone specifies a flag on the command line:
2029 * - if the flag appears on a knownLine, then the identifier is used as
2030 * the name of the directory holding the JVM library (the name of the JVM).
2031 * - if the flag appears as the first flag on an aliasLine, the identifier
2032 * of the second flag is used as the name of the JVM.
2033 * - if the flag appears on a warnLine, the identifier is used as the
2034 * name of the JVM, but a warning is generated.
2035 * - if the flag appears on an ignoreLine, the identifier is recognized as the
2036 * name of a JVM, but the identifier is ignored and the default vm used
2037 * - if the flag appears on an errorLine, an error is generated.
2038 * - if the flag appears as the first flag on a predicateLine, and
2039 * the machine on which you are running passes the predicate indicated,
2040 * then the identifier of the second flag is used as the name of the JVM,
2041 * otherwise the identifier of the first flag is used as the name of the JVM.
2042 * If no flag is given on the command line, the first vmLine of the jvm.cfg
2043 * file determines the name of the JVM.
2044 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
2045 * since they only make sense if someone hasn't specified the name of the
2046 * JVM on the command line.
2047 *
2048 * The intent of the jvm.cfg file is to allow several JVM libraries to
2049 * be installed in different subdirectories of a single JDK installation,
2050 * for space-savings and convenience in testing.
2051 * The intent is explicitly not to provide a full aliasing or predicate
2052 * mechanism.
2053 */
2054 jint
2055 ReadKnownVMs(const char *jvmCfgName, jboolean speculative)
2056 {
2057 FILE *jvmCfg;
2058 char line[MAXPATHLEN+20];
2059 int cnt = 0;
2060 int lineno = 0;
2061 jlong start = 0, end = 0;
2062 int vmType;
2063 char *tmpPtr;
2064 char *altVMName = NULL;
2065 static char *whiteSpace = " \t";
2066 if (JLI_IsTraceLauncher()) {
2067 start = CurrentTimeMicros();
2068 }
2069
2070 jvmCfg = fopen(jvmCfgName, "r");
2071 if (jvmCfg == NULL) {
2072 if (!speculative) {
2073 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName);
2074 exit(1);
2075 } else {
2076 return -1;
2077 }
2078 }
2079 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
2080 vmType = VM_UNKNOWN;
2081 lineno++;
2082 if (line[0] == '#')
2083 continue;
2084 if (line[0] != '-') {
2085 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName);
2086 }
2087 if (cnt >= knownVMsLimit) {
2088 GrowKnownVMs(cnt);
2089 }
2090 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */
2091 tmpPtr = line + JLI_StrCSpn(line, whiteSpace);
2092 if (*tmpPtr == 0) {
2093 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2094 } else {
2095 /* Null-terminate this string for JLI_StringDup below */
2096 *tmpPtr++ = 0;
2097 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2098 if (*tmpPtr == 0) {
2099 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2100 } else {
2101 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) {
2102 vmType = VM_KNOWN;
2103 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) {
2104 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2105 if (*tmpPtr != 0) {
2106 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2107 }
2108 if (*tmpPtr == 0) {
2109 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2110 } else {
2111 /* Null terminate altVMName */
2112 altVMName = tmpPtr;
2113 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2114 *tmpPtr = 0;
2115 vmType = VM_ALIASED_TO;
2116 }
2117 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) {
2118 vmType = VM_WARN;
2119 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) {
2120 vmType = VM_IGNORE;
2121 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) {
2122 vmType = VM_ERROR;
2123 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) {
2124 /* ignored */
2125 } else {
2126 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]);
2127 vmType = VM_KNOWN;
2128 }
2129 }
2130 }
2131
2132 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line);
2133 if (vmType != VM_UNKNOWN) {
2134 knownVMs[cnt].name = JLI_StringDup(line);
2135 knownVMs[cnt].flag = vmType;
2136 switch (vmType) {
2137 default:
2138 break;
2139 case VM_ALIASED_TO:
2140 knownVMs[cnt].alias = JLI_StringDup(altVMName);
2141 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n",
2142 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
2143 break;
2144 }
2145 cnt++;
2146 }
2147 }
2148 fclose(jvmCfg);
2149 knownVMsCount = cnt;
2150
2151 if (JLI_IsTraceLauncher()) {
2152 end = CurrentTimeMicros();
2153 printf("%ld micro seconds to parse jvm.cfg\n", (long)(end-start));
2154 }
2155
2156 return cnt;
2157 }
2158
2159
2160 static void
2161 GrowKnownVMs(int minimum)
2162 {
2163 struct vmdesc* newKnownVMs;
2164 int newMax;
2165
2166 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
2167 if (newMax <= minimum) {
2168 newMax = minimum;
2169 }
2170 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
2171 if (knownVMs != NULL) {
2172 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
2173 }
2174 JLI_MemFree(knownVMs);
2175 knownVMs = newKnownVMs;
2176 knownVMsLimit = newMax;
2177 }
2178
2179
2180 /* Returns index of VM or -1 if not found */
2181 static int
2182 KnownVMIndex(const char* name)
2183 {
2184 int i;
2185 if (JLI_StrCCmp(name, "-J") == 0) name += 2;
2186 for (i = 0; i < knownVMsCount; i++) {
2187 if (!JLI_StrCmp(name, knownVMs[i].name)) {
2188 return i;
2189 }
2190 }
2191 return -1;
2192 }
2193
2194 static void
2195 FreeKnownVMs()
2196 {
2197 int i;
2198 for (i = 0; i < knownVMsCount; i++) {
2199 JLI_MemFree(knownVMs[i].name);
2200 knownVMs[i].name = NULL;
2201 }
2202 JLI_MemFree(knownVMs);
2203 }
2204
2205 /*
2206 * Displays the splash screen according to the jar file name
2207 * and image file names stored in environment variables
2208 */
2209 void
2210 ShowSplashScreen()
2211 {
2212 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
2213 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
2214 int data_size;
2215 void *image_data = NULL;
2216 float scale_factor = 1;
2217 char *scaled_splash_name = NULL;
2218 jboolean isImageScaled = JNI_FALSE;
2219 size_t maxScaledImgNameLength = 0;
2220 if (file_name == NULL){
2221 return;
2222 }
2223
2224 if (!DoSplashInit()) {
2225 goto exit;
2226 }
2227
2228 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name);
2229
2230 scaled_splash_name = JLI_MemAlloc(
2231 maxScaledImgNameLength * sizeof(char));
2232 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name,
2233 &scale_factor,
2234 scaled_splash_name, maxScaledImgNameLength);
2235 if (jar_name) {
2236
2237 if (isImageScaled) {
2238 image_data = JLI_JarUnpackFile(
2239 jar_name, scaled_splash_name, &data_size);
2240 }
2241
2242 if (!image_data) {
2243 scale_factor = 1;
2244 image_data = JLI_JarUnpackFile(
2245 jar_name, file_name, &data_size);
2246 }
2247 if (image_data) {
2248 DoSplashSetScaleFactor(scale_factor);
2249 DoSplashLoadMemory(image_data, data_size);
2250 JLI_MemFree(image_data);
2251 } else {
2252 DoSplashClose();
2253 }
2254 } else {
2255 if (isImageScaled) {
2256 DoSplashSetScaleFactor(scale_factor);
2257 DoSplashLoadFile(scaled_splash_name);
2258 } else {
2259 DoSplashLoadFile(file_name);
2260 }
2261 }
2262 JLI_MemFree(scaled_splash_name);
2263
2264 DoSplashSetFileJarName(file_name, jar_name);
2265
2266 exit:
2267 /*
2268 * Done with all command line processing and potential re-execs so
2269 * clean up the environment.
2270 */
2271 (void)UnsetEnv(MAIN_CLASS_ENV_ENTRY);
2272 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
2273 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
2274
2275 JLI_MemFree(splash_jar_entry);
2276 JLI_MemFree(splash_file_entry);
2277
2278 }
2279
2280 static const char* GetFullVersion()
2281 {
2282 return _fVersion;
2283 }
2284
2285 static const char* GetProgramName()
2286 {
2287 return _program_name;
2288 }
2289
2290 static const char* GetLauncherName()
2291 {
2292 return _launcher_name;
2293 }
2294
2295 static jboolean IsJavaArgs()
2296 {
2297 return _is_java_args;
2298 }
2299
2300 static jboolean
2301 IsWildCardEnabled()
2302 {
2303 return _wc_enabled;
2304 }
2305
2306 int
2307 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize,
2308 int argc, char **argv,
2309 int mode, char *what, int ret)
2310 {
2311 if (threadStackSize == 0) {
2312 /*
2313 * If the user hasn't specified a non-zero stack size ask the JVM for its default.
2314 * A returned 0 means 'use the system default' for a platform, e.g., Windows.
2315 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
2316 * return its default stack size through the init args structure.
2317 */
2318 struct JDK1_1InitArgs args1_1;
2319 memset((void*)&args1_1, 0, sizeof(args1_1));
2320 args1_1.version = JNI_VERSION_1_1;
2321 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
2322 if (args1_1.javaStackSize > 0) {
2323 threadStackSize = args1_1.javaStackSize;
2324 }
2325 }
2326
2327 { /* Create a new thread to create JVM and invoke main method */
2328 JavaMainArgs args;
2329 int rslt;
2330
2331 args.argc = argc;
2332 args.argv = argv;
2333 args.mode = mode;
2334 args.what = what;
2335 args.ifn = *ifn;
2336
2337 rslt = CallJavaMainInNewThread(threadStackSize, (void*)&args);
2338 /* If the caller has deemed there is an error we
2339 * simply return that, otherwise we return the value of
2340 * the callee
2341 */
2342 return (ret != 0) ? ret : rslt;
2343 }
2344 }
2345
2346 static void
2347 DumpState()
2348 {
2349 if (!JLI_IsTraceLauncher()) return ;
2350 printf("Launcher state:\n");
2351 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex());
2352 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off");
2353 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off");
2354 printf("\tprogram name:%s\n", GetProgramName());
2355 printf("\tlauncher name:%s\n", GetLauncherName());
2356 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off");
2357 printf("\tfullversion:%s\n", GetFullVersion());
2358 }
2359
2360 /*
2361 * A utility procedure to always print to stderr
2362 */
2363 JNIEXPORT void JNICALL
2364 JLI_ReportMessage(const char* fmt, ...)
2365 {
2366 va_list vl;
2367 va_start(vl, fmt);
2368 vfprintf(stderr, fmt, vl);
2369 fprintf(stderr, "\n");
2370 va_end(vl);
2371 }
2372
2373 /*
2374 * A utility procedure to always print to stdout
2375 */
2376 void
2377 JLI_ShowMessage(const char* fmt, ...)
2378 {
2379 va_list vl;
2380 va_start(vl, fmt);
2381 vfprintf(stdout, fmt, vl);
2382 fprintf(stdout, "\n");
2383 va_end(vl);
2384 }