1 /*
2 * Copyright (c) 1995, 2023, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /*
27 * Shared source for 'java' command line tool.
28 *
29 * If JAVA_ARGS is defined, then acts as a launcher for applications. For
30 * instance, the JDK command line tools such as javac and javadoc (see
31 * makefiles for more details) are built with this program. Any arguments
32 * prefixed with '-J' will be passed directly to the 'java' command.
33 */
34
35 /*
36 * One job of the launcher is to remove command line options which the
37 * vm does not understand and will not process. These options include
38 * options which select which style of vm is run (e.g. -client and
39 * -server) as well as options which select the data model to use.
40 * Additionally, for tools which invoke an underlying vm "-J-foo"
41 * options are turned into "-foo" options to the vm. This option
42 * filtering is handled in a number of places in the launcher, some of
43 * it in machine-dependent code. In this file, the function
44 * CheckJvmType removes vm style options and TranslateApplicationArgs
45 * removes "-J" prefixes. The CreateExecutionEnvironment function processes
46 * and removes -d<n> options. On unix, there is a possibility that the running
47 * data model may not match to the desired data model, in this case an exec is
48 * required to start the desired model. If the data models match, then
49 * ParseArguments will remove the -d<n> flags. If the data models do not match
50 * the CreateExecutionEnviroment will remove the -d<n> flags.
51 */
52
53
54 #include <assert.h>
55
56 #include "java.h"
57 #include "jni.h"
58
59 /*
60 * A NOTE TO DEVELOPERS: For performance reasons it is important that
61 * the program image remain relatively small until after SelectVersion
62 * CreateExecutionEnvironment have finished their possibly recursive
63 * processing. Watch everything, but resist all temptations to use Java
64 * interfaces.
65 */
66
67 #define USE_STDERR JNI_TRUE /* we usually print to stderr */
68 #define USE_STDOUT JNI_FALSE
69
70 static jboolean printVersion = JNI_FALSE; /* print and exit */
71 static jboolean showVersion = JNI_FALSE; /* print but continue */
72 static jboolean printUsage = JNI_FALSE; /* print and exit*/
73 static jboolean printTo = USE_STDERR; /* where to print version/usage */
74 static jboolean printXUsage = JNI_FALSE; /* print and exit*/
75 static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */
76 static char *showSettings = NULL; /* print but continue */
77 static jboolean showResolvedModules = JNI_FALSE;
78 static jboolean listModules = JNI_FALSE;
79 static char *describeModule = NULL;
80 static jboolean validateModules = JNI_FALSE;
81
82 static const char *_program_name;
83 static const char *_launcher_name;
84 static jboolean _is_java_args = JNI_FALSE;
85 static jboolean _have_classpath = JNI_FALSE;
86 static const char *_fVersion;
87 static jboolean _wc_enabled = JNI_FALSE;
88 static jboolean dumpSharedSpaces = JNI_FALSE; /* -Xshare:dump */
89
90 /*
91 * Entries for splash screen environment variables.
92 * putenv is performed in SelectVersion. We need
93 * them in memory until UnsetEnv, so they are made static
94 * global instead of auto local.
95 */
96 static char* splash_file_entry = NULL;
97 static char* splash_jar_entry = NULL;
98
99 /*
100 * List of VM options to be specified when the VM is created.
101 */
102 static JavaVMOption *options;
103 static int numOptions, maxOptions;
104
105 /*
106 * Prototypes for functions internal to launcher.
107 */
108 static const char* GetFullVersion();
109 static jboolean IsJavaArgs();
110 static void SetJavaLauncherProp();
111 static void SetClassPath(const char *s);
112 static void SetMainModule(const char *s);
113 static void SelectVersion(int argc, char **argv, char **main_class);
114 static jboolean ParseArguments(int *pargc, char ***pargv,
115 int *pmode, char **pwhat,
116 int *pret, const char *jrepath);
117 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv,
118 InvocationFunctions *ifn);
119 static jstring NewPlatformString(JNIEnv *env, char *s);
120 static jclass LoadMainClass(JNIEnv *env, int mode, char *name);
121 static jclass GetApplicationClass(JNIEnv *env);
122
123 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv);
124 static jboolean AddApplicationOptions(int cpathc, const char **cpathv);
125 static void SetApplicationClassPath(const char**);
126
127 static void PrintJavaVersion(JNIEnv *env);
128 static void PrintUsage(JNIEnv* env, jboolean doXUsage);
129 static void ShowSettings(JNIEnv* env, char *optString);
130 static void ShowResolvedModules(JNIEnv* env);
131 static void ListModules(JNIEnv* env);
132 static void DescribeModule(JNIEnv* env, char* optString);
133 static jboolean ValidateModules(JNIEnv* env);
134
135 static void SetPaths(int argc, char **argv);
136
137 static void DumpState();
138
139 enum OptionKind {
140 LAUNCHER_OPTION = 0,
141 LAUNCHER_OPTION_WITH_ARGUMENT,
142 LAUNCHER_MAIN_OPTION,
143 VM_LONG_OPTION,
144 VM_LONG_OPTION_WITH_ARGUMENT,
145 VM_OPTION
146 };
147
148 static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue);
149 static jboolean IsOptionWithArgument(int argc, char **argv);
150
151 /* Maximum supported entries from jvm.cfg. */
152 #define INIT_MAX_KNOWN_VMS 10
153
154 /* Values for vmdesc.flag */
155 enum vmdesc_flag {
156 VM_UNKNOWN = -1,
157 VM_KNOWN,
158 VM_ALIASED_TO,
159 VM_WARN,
160 VM_ERROR,
161 VM_IF_SERVER_CLASS,
162 VM_IGNORE
163 };
164
165 struct vmdesc {
166 char *name;
167 int flag;
168 char *alias;
169 char *server_class;
170 };
171 static struct vmdesc *knownVMs = NULL;
172 static int knownVMsCount = 0;
173 static int knownVMsLimit = 0;
174
175 static void GrowKnownVMs(int minimum);
176 static int KnownVMIndex(const char* name);
177 static void FreeKnownVMs();
178 static jboolean IsWildCardEnabled();
179
180
181 #define SOURCE_LAUNCHER_MAIN_ENTRY "jdk.compiler/com.sun.tools.javac.launcher.SourceLauncher"
182
183 /*
184 * This reports error. VM will not be created and no usage is printed.
185 */
186 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \
187 do { \
188 if (!AC_ok) { \
189 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
190 printUsage = JNI_FALSE; \
191 *pret = 1; \
192 return JNI_FALSE; \
193 } \
194 } while (JNI_FALSE)
195
196 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \
197 do { \
198 if (AC_arg_count < 1) { \
199 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
200 printUsage = JNI_TRUE; \
201 *pret = 1; \
202 return JNI_TRUE; \
203 } \
204 } while (JNI_FALSE)
205
206 /*
207 * Running Java code in primordial thread caused many problems. We will
208 * create a new thread to invoke JVM. See 6316197 for more information.
209 */
210 static jlong threadStackSize = 0; /* stack size of the new thread */
211 static jlong maxHeapSize = 0; /* max heap size */
212 static jlong initialHeapSize = 0; /* initial heap size */
213
214 /*
215 * A minimum initial-thread stack size suitable for most platforms.
216 * This is the minimum amount of stack needed to load the JVM such
217 * that it can reject a too small -Xss value. If this is too small
218 * JVM initialization would cause a StackOverflowError.
219 */
220 #ifndef STACK_SIZE_MINIMUM
221 #define STACK_SIZE_MINIMUM (64 * KB)
222 #endif
223
224 /*
225 * Entry point.
226 */
227 JNIEXPORT int JNICALL
228 JLI_Launch(int argc, char ** argv, /* main argc, argv */
229 int jargc, const char** jargv, /* java args */
230 int appclassc, const char** appclassv, /* app classpath */
231 const char* fullversion, /* full version defined */
232 const char* dotversion, /* UNUSED dot version defined */
233 const char* pname, /* program name */
234 const char* lname, /* launcher name */
235 jboolean javaargs, /* JAVA_ARGS */
236 jboolean cpwildcard, /* classpath wildcard*/
237 jboolean javaw, /* windows-only javaw */
238 jint ergo /* unused */
239 )
240 {
241 int mode = LM_UNKNOWN;
242 char *what = NULL;
243 char *main_class = NULL;
244 int ret;
245 InvocationFunctions ifn;
246 jlong start = 0, end = 0;
247 char jvmpath[MAXPATHLEN];
248 char jrepath[MAXPATHLEN];
249 char jvmcfg[MAXPATHLEN];
250
251 _fVersion = fullversion;
252 _launcher_name = lname;
253 _program_name = pname;
254 _is_java_args = javaargs;
255 _wc_enabled = cpwildcard;
256
257 InitLauncher(javaw);
258 DumpState();
259 if (JLI_IsTraceLauncher()) {
260 int i;
261 printf("Java args:\n");
262 for (i = 0; i < jargc ; i++) {
263 printf("jargv[%d] = %s\n", i, jargv[i]);
264 }
265 printf("Command line args:\n");
266 for (i = 0; i < argc ; i++) {
267 printf("argv[%d] = %s\n", i, argv[i]);
268 }
269 AddOption("-Dsun.java.launcher.diag=true", NULL);
270 }
271
272 /*
273 * SelectVersion() has several responsibilities:
274 *
275 * 1) Disallow specification of another JRE. With 1.9, another
276 * version of the JRE cannot be invoked.
277 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since
278 * all mJRE directives have been stripped from the request but
279 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been
280 * invoked from the command line.
281 */
282 SelectVersion(argc, argv, &main_class);
283
284 CreateExecutionEnvironment(&argc, &argv,
285 jrepath, sizeof(jrepath),
286 jvmpath, sizeof(jvmpath),
287 jvmcfg, sizeof(jvmcfg));
288
289 ifn.CreateJavaVM = 0;
290 ifn.GetDefaultJavaVMInitArgs = 0;
291
292 if (JLI_IsTraceLauncher()) {
293 start = CurrentTimeMicros();
294 }
295
296 if (!LoadJavaVM(jvmpath, &ifn)) {
297 return(6);
298 }
299
300 if (JLI_IsTraceLauncher()) {
301 end = CurrentTimeMicros();
302 }
303
304 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n", (long)(end-start));
305
306 ++argv;
307 --argc;
308
309 if (IsJavaArgs()) {
310 /* Preprocess wrapper arguments */
311 TranslateApplicationArgs(jargc, jargv, &argc, &argv);
312 if (!AddApplicationOptions(appclassc, appclassv)) {
313 return(1);
314 }
315 } else {
316 /* Set default CLASSPATH */
317 char* cpath = getenv("CLASSPATH");
318 if (cpath != NULL) {
319 SetClassPath(cpath);
320 }
321 }
322
323 /* Parse command line options; if the return value of
324 * ParseArguments is false, the program should exit.
325 */
326 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath)) {
327 return(ret);
328 }
329
330 /* Override class path if -jar flag was specified */
331 if (mode == LM_JAR) {
332 SetClassPath(what); /* Override class path */
333 }
334
335 /* set the -Dsun.java.command pseudo property */
336 SetJavaCommandLineProp(what, argc, argv);
337
338 /* Set the -Dsun.java.launcher pseudo property */
339 SetJavaLauncherProp();
340
341 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret);
342 }
343 /*
344 * Always detach the main thread so that it appears to have ended when
345 * the application's main method exits. This will invoke the
346 * uncaught exception handler machinery if main threw an
347 * exception. An uncaught exception handler cannot change the
348 * launcher's return code except by calling System.exit.
349 *
350 * Wait for all non-daemon threads to end, then destroy the VM.
351 * This will actually create a trivial new Java waiter thread
352 * named "DestroyJavaVM", but this will be seen as a different
353 * thread from the one that executed main, even though they are
354 * the same C thread. This allows mainThread.join() and
355 * mainThread.isAlive() to work as expected.
356 */
357 #define LEAVE() \
358 do { \
359 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \
360 JLI_ReportErrorMessage(JVM_ERROR2); \
361 ret = 1; \
362 } \
363 if (JNI_TRUE) { \
364 (*vm)->DestroyJavaVM(vm); \
365 return ret; \
366 } \
367 } while (JNI_FALSE)
368
369 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \
370 do { \
371 if ((*env)->ExceptionOccurred(env)) { \
372 JLI_ReportExceptionDescription(env); \
373 LEAVE(); \
374 } \
375 if ((CENL_exception) == NULL) { \
376 JLI_ReportErrorMessage(JNI_ERROR); \
377 LEAVE(); \
378 } \
379 } while (JNI_FALSE)
380
381 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \
382 do { \
383 if ((*env)->ExceptionOccurred(env)) { \
384 JLI_ReportExceptionDescription(env); \
385 ret = (CEL_return_value); \
386 LEAVE(); \
387 } \
388 } while (JNI_FALSE)
389
390 /*
391 * Invokes static main(String[]) method if found.
392 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe
393 * a pending exception if the method threw.
394 */
395 int
396 invokeStaticMainWithArgs(JNIEnv *env, jclass mainClass, jobjectArray mainArgs) {
397 jmethodID mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
398 "([Ljava/lang/String;)V");
399 if (mainID == NULL) {
400 // static main(String[]) not found
401 return 0;
402 }
403 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs);
404 return 1; // method was invoked
405 }
406
407 /*
408 * Invokes instance main(String[]) method if found.
409 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe
410 * a pending exception if the method threw.
411 */
412 int
413 invokeInstanceMainWithArgs(JNIEnv *env, jclass mainClass, jobjectArray mainArgs) {
414 jmethodID constructor = (*env)->GetMethodID(env, mainClass, "<init>", "()V");
415 if (constructor == NULL) {
416 // main class' no-arg constructor not found
417 return 0;
418 }
419 jobject mainObject = (*env)->NewObject(env, mainClass, constructor);
420 if (mainObject == NULL) {
421 // main class instance couldn't be constructed
422 return 0;
423 }
424 jmethodID mainID =
425 (*env)->GetMethodID(env, mainClass, "main", "([Ljava/lang/String;)V");
426 if (mainID == NULL) {
427 // instance method main(String[]) method not found
428 return 0;
429 }
430 (*env)->CallVoidMethod(env, mainObject, mainID, mainArgs);
431 return 1; // method was invoked
432 }
433
434 /*
435 * Invokes no-arg static main() method if found.
436 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe
437 * a pending exception if the method threw.
438 */
439 int
440 invokeStaticMainWithoutArgs(JNIEnv *env, jclass mainClass) {
441 jmethodID mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
442 "()V");
443 if (mainID == NULL) {
444 // static main() method couldn't be located
445 return 0;
446 }
447 (*env)->CallStaticVoidMethod(env, mainClass, mainID);
448 return 1; // method was invoked
449 }
450
451 /*
452 * Invokes no-arg instance main() method if found.
453 * Returns 0 with a pending exception if not found. Returns 1 if invoked, maybe
454 * a pending exception if the method threw.
455 */
456 int
457 invokeInstanceMainWithoutArgs(JNIEnv *env, jclass mainClass) {
458 jmethodID constructor = (*env)->GetMethodID(env, mainClass, "<init>", "()V");
459 if (constructor == NULL) {
460 // main class' no-arg constructor not found
461 return 0;
462 }
463 jobject mainObject = (*env)->NewObject(env, mainClass, constructor);
464 if (mainObject == NULL) {
465 // couldn't create instance of main class
466 return 0;
467 }
468 jmethodID mainID = (*env)->GetMethodID(env, mainClass, "main",
469 "()V");
470 if (mainID == NULL) {
471 // instance method main() not found
472 return 0;
473 }
474 (*env)->CallVoidMethod(env, mainObject, mainID);
475 return 1; // method was invoked
476 }
477
478 int
479 JavaMain(void* _args)
480 {
481 JavaMainArgs *args = (JavaMainArgs *)_args;
482 int argc = args->argc;
483 char **argv = args->argv;
484 int mode = args->mode;
485 char *what = args->what;
486 InvocationFunctions ifn = args->ifn;
487
488 JavaVM *vm = 0;
489 JNIEnv *env = 0;
490 jclass mainClass = NULL;
491 jclass appClass = NULL; // actual application class being launched
492 jobjectArray mainArgs;
493 int ret = 0;
494 jlong start = 0, end = 0;
495 jclass helperClass;
496 jfieldID isStaticMainField;
497 jboolean isStaticMain;
498 jfieldID noArgMainField;
499 jboolean noArgMain;
500
501 RegisterThread();
502
503 /* Initialize the virtual machine */
504 start = CurrentTimeMicros();
505 if (!InitializeJVM(&vm, &env, &ifn)) {
506 JLI_ReportErrorMessage(JVM_ERROR1);
507 exit(1);
508 }
509
510 if (showSettings != NULL) {
511 ShowSettings(env, showSettings);
512 CHECK_EXCEPTION_LEAVE(1);
513 }
514
515 // show resolved modules and continue
516 if (showResolvedModules) {
517 ShowResolvedModules(env);
518 CHECK_EXCEPTION_LEAVE(1);
519 }
520
521 // list observable modules, then exit
522 if (listModules) {
523 ListModules(env);
524 CHECK_EXCEPTION_LEAVE(1);
525 LEAVE();
526 }
527
528 // describe a module, then exit
529 if (describeModule != NULL) {
530 DescribeModule(env, describeModule);
531 CHECK_EXCEPTION_LEAVE(1);
532 LEAVE();
533 }
534
535 if (printVersion || showVersion) {
536 PrintJavaVersion(env);
537 CHECK_EXCEPTION_LEAVE(0);
538 if (printVersion) {
539 LEAVE();
540 }
541 }
542
543 // modules have been validated at startup so exit
544 if (validateModules) {
545 LEAVE();
546 }
547
548 /*
549 * -Xshare:dump does not have a main class so the VM can safely exit now
550 */
551 if (dumpSharedSpaces) {
552 CHECK_EXCEPTION_LEAVE(1);
553 LEAVE();
554 }
555
556 /* If the user specified neither a class name nor a JAR file */
557 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) {
558 PrintUsage(env, printXUsage);
559 CHECK_EXCEPTION_LEAVE(1);
560 LEAVE();
561 }
562
563 FreeKnownVMs(); /* after last possible PrintUsage */
564
565 if (JLI_IsTraceLauncher()) {
566 end = CurrentTimeMicros();
567 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n", (long)(end-start));
568 }
569
570 /* At this stage, argc/argv have the application's arguments */
571 if (JLI_IsTraceLauncher()){
572 int i;
573 printf("%s is '%s'\n", launchModeNames[mode], what);
574 printf("App's argc is %d\n", argc);
575 for (i=0; i < argc; i++) {
576 printf(" argv[%2d] = '%s'\n", i, argv[i]);
577 }
578 }
579
580 ret = 1;
581
582 /*
583 * See bugid 5030265. The Main-Class name has already been parsed
584 * from the manifest, but not parsed properly for UTF-8 support.
585 * Hence the code here ignores the value previously extracted and
586 * uses the pre-existing code to reextract the value. This is
587 * possibly an end of release cycle expedient. However, it has
588 * also been discovered that passing some character sets through
589 * the environment has "strange" behavior on some variants of
590 * Windows. Hence, maybe the manifest parsing code local to the
591 * launcher should never be enhanced.
592 *
593 * Hence, future work should either:
594 * 1) Correct the local parsing code and verify that the
595 * Main-Class attribute gets properly passed through
596 * all environments,
597 * 2) Remove the vestages of maintaining main_class through
598 * the environment (and remove these comments).
599 *
600 * This method also correctly handles launching existing JavaFX
601 * applications that may or may not have a Main-Class manifest entry.
602 */
603 mainClass = LoadMainClass(env, mode, what);
604 CHECK_EXCEPTION_NULL_LEAVE(mainClass);
605 /*
606 * In some cases when launching an application that needs a helper, e.g., a
607 * JavaFX application with no main method, the mainClass will not be the
608 * applications own main class but rather a helper class. To keep things
609 * consistent in the UI we need to track and report the application main class.
610 */
611 appClass = GetApplicationClass(env);
612 CHECK_EXCEPTION_NULL_LEAVE(appClass);
613
614 /* Build platform specific argument array */
615 mainArgs = CreateApplicationArgs(env, argv, argc);
616 CHECK_EXCEPTION_NULL_LEAVE(mainArgs);
617
618 if (dryRun) {
619 ret = 0;
620 LEAVE();
621 }
622
623 /*
624 * PostJVMInit uses the class name as the application name for GUI purposes,
625 * for example, on OSX this sets the application name in the menu bar for
626 * both SWT and JavaFX. So we'll pass the actual application class here
627 * instead of mainClass as that may be a launcher or helper class instead
628 * of the application class.
629 */
630 PostJVMInit(env, appClass, vm);
631 CHECK_EXCEPTION_LEAVE(1);
632
633 /*
634 * The main method is invoked here so that extraneous java stacks are not in
635 * the application stack trace.
636 */
637
638 helperClass = GetLauncherHelperClass(env);
639 isStaticMainField = (*env)->GetStaticFieldID(env, helperClass, "isStaticMain", "Z");
640 CHECK_EXCEPTION_NULL_LEAVE(isStaticMainField);
641 isStaticMain = (*env)->GetStaticBooleanField(env, helperClass, isStaticMainField);
642
643 noArgMainField = (*env)->GetStaticFieldID(env, helperClass, "noArgMain", "Z");
644 CHECK_EXCEPTION_NULL_LEAVE(noArgMainField);
645 noArgMain = (*env)->GetStaticBooleanField(env, helperClass, noArgMainField);
646
647 if (isStaticMain) {
648 if (noArgMain) {
649 ret = invokeStaticMainWithoutArgs(env, mainClass);
650 } else {
651 ret = invokeStaticMainWithArgs(env, mainClass, mainArgs);
652 }
653 } else {
654 if (noArgMain) {
655 ret = invokeInstanceMainWithoutArgs(env, mainClass);
656 } else {
657 ret = invokeInstanceMainWithArgs(env, mainClass, mainArgs);
658 }
659 }
660 if (!ret) {
661 // An appropriate main method couldn't be located, check and report
662 // any exception and LEAVE()
663 CHECK_EXCEPTION_LEAVE(1);
664 }
665
666 /*
667 * The launcher's exit code (in the absence of calls to
668 * System.exit) will be non-zero if main threw an exception.
669 */
670 if (ret && (*env)->ExceptionOccurred(env) == NULL) {
671 // main method was invoked and no exception was thrown from it,
672 // return success.
673 ret = 0;
674 } else {
675 // Either the main method couldn't be located or an exception occurred
676 // in the invoked main method, return failure.
677 ret = 1;
678 }
679 LEAVE();
680 }
681
682 /*
683 * Test if the given name is one of the class path options.
684 */
685 static jboolean
686 IsClassPathOption(const char* name) {
687 return JLI_StrCmp(name, "-classpath") == 0 ||
688 JLI_StrCmp(name, "-cp") == 0 ||
689 JLI_StrCmp(name, "--class-path") == 0;
690 }
691
692 /*
693 * Test if the given name is a launcher option taking the main entry point.
694 */
695 static jboolean
696 IsLauncherMainOption(const char* name) {
697 return JLI_StrCmp(name, "--module") == 0 ||
698 JLI_StrCmp(name, "-m") == 0;
699 }
700
701 /*
702 * Test if the given name is a white-space launcher option.
703 */
704 static jboolean
705 IsLauncherOption(const char* name) {
706 return IsClassPathOption(name) ||
707 IsLauncherMainOption(name) ||
708 JLI_StrCmp(name, "--describe-module") == 0 ||
709 JLI_StrCmp(name, "-d") == 0 ||
710 JLI_StrCmp(name, "--source") == 0;
711 }
712
713 /*
714 * Test if the given name is a module-system white-space option that
715 * will be passed to the VM with its corresponding long-form option
716 * name and "=" delimiter.
717 */
718 static jboolean
719 IsModuleOption(const char* name) {
720 return JLI_StrCmp(name, "--module-path") == 0 ||
721 JLI_StrCmp(name, "-p") == 0 ||
722 JLI_StrCmp(name, "--upgrade-module-path") == 0 ||
723 JLI_StrCmp(name, "--add-modules") == 0 ||
724 JLI_StrCmp(name, "--enable-native-access") == 0 ||
725 JLI_StrCmp(name, "--limit-modules") == 0 ||
726 JLI_StrCmp(name, "--add-exports") == 0 ||
727 JLI_StrCmp(name, "--add-opens") == 0 ||
728 JLI_StrCmp(name, "--add-reads") == 0 ||
729 JLI_StrCmp(name, "--patch-module") == 0;
730 }
731
732 static jboolean
733 IsLongFormModuleOption(const char* name) {
734 return JLI_StrCCmp(name, "--module-path=") == 0 ||
735 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 ||
736 JLI_StrCCmp(name, "--add-modules=") == 0 ||
737 JLI_StrCCmp(name, "--enable-native-access=") == 0 ||
738 JLI_StrCCmp(name, "--limit-modules=") == 0 ||
739 JLI_StrCCmp(name, "--add-exports=") == 0 ||
740 JLI_StrCCmp(name, "--add-reads=") == 0 ||
741 JLI_StrCCmp(name, "--patch-module=") == 0;
742 }
743
744 /*
745 * Test if the given name has a white space option.
746 */
747 jboolean
748 IsWhiteSpaceOption(const char* name) {
749 return IsModuleOption(name) ||
750 IsLauncherOption(name);
751 }
752
753 /*
754 * Check if it is OK to set the mode.
755 * If the mode was previously set, and should not be changed,
756 * a fatal error is reported.
757 */
758 static int
759 checkMode(int mode, int newMode, const char *arg) {
760 if (mode == LM_SOURCE) {
761 JLI_ReportErrorMessage(ARG_ERROR14, arg);
762 exit(1);
763 }
764 return newMode;
765 }
766
767 /*
768 * Test if an arg identifies a source file.
769 */
770 static jboolean IsSourceFile(const char *arg) {
771 struct stat st;
772 return (JLI_HasSuffix(arg, ".java") && stat(arg, &st) == 0);
773 }
774
775 /*
776 * Checks the command line options to find which JVM type was
777 * specified. If no command line option was given for the JVM type,
778 * the default type is used. The environment variable
779 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also
780 * checked as ways of specifying which JVM type to invoke.
781 */
782 char *
783 CheckJvmType(int *pargc, char ***argv, jboolean speculative) {
784 int i, argi;
785 int argc;
786 char **newArgv;
787 int newArgvIdx = 0;
788 int isVMType;
789 int jvmidx = -1;
790 char *jvmtype = getenv("JDK_ALTERNATE_VM");
791
792 argc = *pargc;
793
794 /* To make things simpler we always copy the argv array */
795 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *));
796
797 /* The program name is always present */
798 newArgv[newArgvIdx++] = (*argv)[0];
799
800 for (argi = 1; argi < argc; argi++) {
801 char *arg = (*argv)[argi];
802 isVMType = 0;
803
804 if (IsJavaArgs()) {
805 if (arg[0] != '-') {
806 newArgv[newArgvIdx++] = arg;
807 continue;
808 }
809 } else {
810 if (IsWhiteSpaceOption(arg)) {
811 newArgv[newArgvIdx++] = arg;
812 argi++;
813 if (argi < argc) {
814 newArgv[newArgvIdx++] = (*argv)[argi];
815 }
816 continue;
817 }
818 if (arg[0] != '-') break;
819 }
820
821 /* Did the user pass an explicit VM type? */
822 i = KnownVMIndex(arg);
823 if (i >= 0) {
824 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */
825 isVMType = 1;
826 *pargc = *pargc - 1;
827 }
828
829 /* Did the user specify an "alternate" VM? */
830 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) {
831 isVMType = 1;
832 jvmtype = arg+((arg[1]=='X')? 10 : 12);
833 jvmidx = -1;
834 }
835
836 if (!isVMType) {
837 newArgv[newArgvIdx++] = arg;
838 }
839 }
840
841 /*
842 * Finish copying the arguments if we aborted the above loop.
843 * NOTE that if we aborted via "break" then we did NOT copy the
844 * last argument above, and in addition argi will be less than
845 * argc.
846 */
847 while (argi < argc) {
848 newArgv[newArgvIdx++] = (*argv)[argi];
849 argi++;
850 }
851
852 /* argv is null-terminated */
853 newArgv[newArgvIdx] = 0;
854
855 /* Copy back argv */
856 *argv = newArgv;
857 *pargc = newArgvIdx;
858
859 /* use the default VM type if not specified (no alias processing) */
860 if (jvmtype == NULL) {
861 char* result = knownVMs[0].name+1;
862 JLI_TraceLauncher("Default VM: %s\n", result);
863 return result;
864 }
865
866 /* if using an alternate VM, no alias processing */
867 if (jvmidx < 0)
868 return jvmtype;
869
870 /* Resolve aliases first */
871 {
872 int loopCount = 0;
873 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) {
874 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias);
875
876 if (loopCount > knownVMsCount) {
877 if (!speculative) {
878 JLI_ReportErrorMessage(CFG_ERROR1);
879 exit(1);
880 } else {
881 return "ERROR";
882 /* break; */
883 }
884 }
885
886 if (nextIdx < 0) {
887 if (!speculative) {
888 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias);
889 exit(1);
890 } else {
891 return "ERROR";
892 }
893 }
894 jvmidx = nextIdx;
895 jvmtype = knownVMs[jvmidx].name+1;
896 loopCount++;
897 }
898 }
899
900 switch (knownVMs[jvmidx].flag) {
901 case VM_WARN:
902 if (!speculative) {
903 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1);
904 }
905 /* fall through */
906 case VM_IGNORE:
907 jvmtype = knownVMs[jvmidx=0].name + 1;
908 /* fall through */
909 case VM_KNOWN:
910 break;
911 case VM_ERROR:
912 if (!speculative) {
913 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype);
914 exit(1);
915 } else {
916 return "ERROR";
917 }
918 }
919
920 return jvmtype;
921 }
922
923 /* copied from HotSpot function "atomll()" */
924 static int
925 parse_size(const char *s, jlong *result) {
926 jlong n = 0;
927 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n);
928 if (args_read != 1) {
929 return 0;
930 }
931 while (*s != '\0' && *s >= '0' && *s <= '9') {
932 s++;
933 }
934 // 4705540: illegal if more characters are found after the first non-digit
935 if (JLI_StrLen(s) > 1) {
936 return 0;
937 }
938 switch (*s) {
939 case 'T': case 't':
940 *result = n * GB * KB;
941 return 1;
942 case 'G': case 'g':
943 *result = n * GB;
944 return 1;
945 case 'M': case 'm':
946 *result = n * MB;
947 return 1;
948 case 'K': case 'k':
949 *result = n * KB;
950 return 1;
951 case '\0':
952 *result = n;
953 return 1;
954 default:
955 /* Create JVM with default stack and let VM handle malformed -Xss string*/
956 return 0;
957 }
958 }
959
960 /*
961 * Adds a new VM option with the given name and value.
962 */
963 void
964 AddOption(char *str, void *info)
965 {
966 /*
967 * Expand options array if needed to accommodate at least one more
968 * VM option.
969 */
970 if (numOptions >= maxOptions) {
971 if (options == 0) {
972 maxOptions = 4;
973 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
974 } else {
975 JavaVMOption *tmp;
976 maxOptions *= 2;
977 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
978 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
979 JLI_MemFree(options);
980 options = tmp;
981 }
982 }
983 options[numOptions].optionString = str;
984 options[numOptions++].extraInfo = info;
985
986 /*
987 * -Xss is used both by the JVM and here to establish the stack size of the thread
988 * created to launch the JVM. In the latter case we need to ensure we don't go
989 * below the minimum stack size allowed. If -Xss is zero that tells the JVM to use
990 * 'default' sizes (either from JVM or system configuration, e.g. 'ulimit -s' on linux),
991 * and is not itself a small stack size that will be rejected. So we ignore -Xss0 here.
992 */
993 if (JLI_StrCCmp(str, "-Xss") == 0) {
994 jlong tmp;
995 if (parse_size(str + 4, &tmp)) {
996 threadStackSize = tmp;
997 if (threadStackSize > 0 && threadStackSize < (jlong)STACK_SIZE_MINIMUM) {
998 threadStackSize = STACK_SIZE_MINIMUM;
999 }
1000 }
1001 }
1002
1003 if (JLI_StrCCmp(str, "-Xmx") == 0) {
1004 jlong tmp;
1005 if (parse_size(str + 4, &tmp)) {
1006 maxHeapSize = tmp;
1007 }
1008 }
1009
1010 if (JLI_StrCCmp(str, "-Xms") == 0) {
1011 jlong tmp;
1012 if (parse_size(str + 4, &tmp)) {
1013 initialHeapSize = tmp;
1014 }
1015 }
1016 }
1017
1018 static void
1019 SetClassPath(const char *s)
1020 {
1021 char *def;
1022 const char *orig = s;
1023 static const char format[] = "-Djava.class.path=%s";
1024 /*
1025 * usually we should not get a null pointer, but there are cases where
1026 * we might just get one, in which case we simply ignore it, and let the
1027 * caller deal with it
1028 */
1029 if (s == NULL)
1030 return;
1031 s = JLI_WildcardExpandClasspath(s);
1032 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s))
1033 // s is became corrupted after expanding wildcards
1034 return;
1035 size_t defSize = sizeof(format)
1036 - 2 /* strlen("%s") */
1037 + JLI_StrLen(s);
1038 def = JLI_MemAlloc(defSize);
1039 snprintf(def, defSize, format, s);
1040 AddOption(def, NULL);
1041 if (s != orig)
1042 JLI_MemFree((char *) s);
1043 _have_classpath = JNI_TRUE;
1044 }
1045
1046 static void
1047 AddLongFormOption(const char *option, const char *arg)
1048 {
1049 static const char format[] = "%s=%s";
1050 char *def;
1051 size_t def_len;
1052
1053 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1;
1054 def = JLI_MemAlloc(def_len);
1055 JLI_Snprintf(def, def_len, format, option, arg);
1056 AddOption(def, NULL);
1057 }
1058
1059 static void
1060 SetMainModule(const char *s)
1061 {
1062 static const char format[] = "-Djdk.module.main=%s";
1063 char* slash = JLI_StrChr(s, '/');
1064 size_t s_len, def_len;
1065 char *def;
1066
1067 /* value may be <module> or <module>/<mainclass> */
1068 if (slash == NULL) {
1069 s_len = JLI_StrLen(s);
1070 } else {
1071 s_len = (size_t) (slash - s);
1072 }
1073 def_len = sizeof(format)
1074 - 2 /* strlen("%s") */
1075 + s_len;
1076 def = JLI_MemAlloc(def_len);
1077 JLI_Snprintf(def, def_len, format, s);
1078 AddOption(def, NULL);
1079 }
1080
1081 /*
1082 * The SelectVersion() routine ensures that an appropriate version of
1083 * the JRE is running. The specification for the appropriate version
1084 * is obtained from either the manifest of a jar file (preferred) or
1085 * from command line options.
1086 * The routine also parses splash screen command line options and
1087 * passes on their values in private environment variables.
1088 */
1089 static void
1090 SelectVersion(int argc, char **argv, char **main_class)
1091 {
1092 char *arg;
1093 char *operand;
1094 int jarflag = 0;
1095 int headlessflag = 0;
1096 manifest_info info;
1097 char *splash_file_name = NULL;
1098 char *splash_jar_name = NULL;
1099 char *env_in;
1100 int res;
1101 jboolean has_arg;
1102
1103 /*
1104 * If the version has already been selected, set *main_class
1105 * with the value passed through the environment (if any) and
1106 * simply return.
1107 */
1108
1109 /*
1110 * This environmental variable can be set by mJRE capable JREs
1111 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been
1112 * stripped by those JREs. This environmental variable allows 1.9+
1113 * JREs to be started by these mJRE capable JREs.
1114 * Note that mJRE directives in the jar manifest file would have been
1115 * ignored for a JRE started by another JRE...
1116 * .. skipped for JRE 1.5 and beyond.
1117 * .. not even checked for pre 1.5.
1118 */
1119 if ((env_in = getenv(ENV_ENTRY)) != NULL) {
1120 if (*env_in != '\0')
1121 *main_class = JLI_StringDup(env_in);
1122 return;
1123 }
1124
1125 /*
1126 * Scan through the arguments for options relevant to multiple JRE
1127 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8.
1128 *
1129 * This capability is no longer available with JRE versions 1.9 and later.
1130 * These command line options are reported as errors.
1131 */
1132
1133 argc--;
1134 argv++;
1135 while (argc > 0 && *(arg = *argv) == '-') {
1136 has_arg = IsOptionWithArgument(argc, argv);
1137 if (JLI_StrCCmp(arg, "-version:") == 0) {
1138 JLI_ReportErrorMessage(SPC_ERROR1);
1139 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) {
1140 JLI_ReportErrorMessage(SPC_ERROR2);
1141 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) {
1142 JLI_ReportErrorMessage(SPC_ERROR2);
1143 } else {
1144 if (JLI_StrCmp(arg, "-jar") == 0)
1145 jarflag = 1;
1146 if (IsWhiteSpaceOption(arg)) {
1147 if (has_arg) {
1148 argc--;
1149 argv++;
1150 arg = *argv;
1151 }
1152 }
1153
1154 /*
1155 * Checking for headless toolkit option in the some way as AWT does:
1156 * "true" means true and any other value means false
1157 */
1158 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) {
1159 headlessflag = 1;
1160 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) {
1161 headlessflag = 0;
1162 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1163 splash_file_name = arg+8;
1164 }
1165 }
1166 argc--;
1167 argv++;
1168 }
1169 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */
1170 operand = NULL;
1171 } else {
1172 argc--;
1173 operand = *argv++;
1174 }
1175
1176 /*
1177 * If there is a jar file, read the manifest. If the jarfile can't be
1178 * read, the manifest can't be read from the jar file, or the manifest
1179 * is corrupt, issue the appropriate error messages and exit.
1180 *
1181 * Even if there isn't a jar file, construct a manifest_info structure
1182 * containing the command line information. It's a convenient way to carry
1183 * this data around.
1184 */
1185 if (jarflag && operand) {
1186 if ((res = JLI_ParseManifest(operand, &info)) != 0) {
1187 if (res == -1)
1188 JLI_ReportErrorMessage(JAR_ERROR2, operand);
1189 else
1190 JLI_ReportErrorMessage(JAR_ERROR3, operand);
1191 exit(1);
1192 }
1193
1194 /*
1195 * Command line splash screen option should have precedence
1196 * over the manifest, so the manifest data is used only if
1197 * splash_file_name has not been initialized above during command
1198 * line parsing
1199 */
1200 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) {
1201 splash_file_name = info.splashscreen_image_file_name;
1202 splash_jar_name = operand;
1203 }
1204 } else {
1205 info.manifest_version = NULL;
1206 info.main_class = NULL;
1207 info.jre_version = NULL;
1208 info.jre_restrict_search = 0;
1209 }
1210
1211 /*
1212 * Passing on splash screen info in environment variables
1213 */
1214 if (splash_file_name && !headlessflag) {
1215 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1);
1216 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
1217 JLI_StrCat(splash_file_entry, splash_file_name);
1218 putenv(splash_file_entry);
1219 }
1220 if (splash_jar_name && !headlessflag) {
1221 splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1);
1222 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
1223 JLI_StrCat(splash_jar_entry, splash_jar_name);
1224 putenv(splash_jar_entry);
1225 }
1226
1227
1228 /*
1229 * "Valid" returns (other than unrecoverable errors) follow. Set
1230 * main_class as a side-effect of this routine.
1231 */
1232 if (info.main_class != NULL)
1233 *main_class = JLI_StringDup(info.main_class);
1234
1235 if (info.jre_version == NULL) {
1236 JLI_FreeManifest();
1237 return;
1238 }
1239
1240 }
1241
1242 /*
1243 * Test if the current argv is an option, i.e. with a leading `-`
1244 * and followed with an argument without a leading `-`.
1245 */
1246 static jboolean
1247 IsOptionWithArgument(int argc, char** argv) {
1248 char* option;
1249 char* arg;
1250
1251 if (argc <= 1)
1252 return JNI_FALSE;
1253
1254 option = *argv;
1255 arg = *(argv+1);
1256 return *option == '-' && *arg != '-';
1257 }
1258
1259 /*
1260 * Gets the option, and its argument if the option has an argument.
1261 * It will update *pargc, **pargv to the next option.
1262 */
1263 static int
1264 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) {
1265 int argc = *pargc;
1266 char** argv = *pargv;
1267 char* arg = *argv;
1268
1269 char* option = arg;
1270 char* value = NULL;
1271 char* equals = NULL;
1272 int kind = LAUNCHER_OPTION;
1273 jboolean has_arg = JNI_FALSE;
1274
1275 // check if this option may be a white-space option with an argument
1276 has_arg = IsOptionWithArgument(argc, argv);
1277
1278 argv++; --argc;
1279 if (IsLauncherOption(arg)) {
1280 if (has_arg) {
1281 value = *argv;
1282 argv++; --argc;
1283 }
1284 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION
1285 : LAUNCHER_OPTION_WITH_ARGUMENT;
1286 } else if (IsModuleOption(arg)) {
1287 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1288 if (has_arg) {
1289 value = *argv;
1290 argv++; --argc;
1291 }
1292
1293 /*
1294 * Support short form alias
1295 */
1296 if (JLI_StrCmp(arg, "-p") == 0) {
1297 option = "--module-path";
1298 }
1299
1300 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) {
1301 value = equals+1;
1302 if (JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1303 JLI_StrCCmp(arg, "--module=") == 0 ||
1304 JLI_StrCCmp(arg, "--class-path=") == 0||
1305 JLI_StrCCmp(arg, "--source=") == 0) {
1306 kind = LAUNCHER_OPTION_WITH_ARGUMENT;
1307 } else {
1308 kind = VM_LONG_OPTION;
1309 }
1310 }
1311
1312 *pargc = argc;
1313 *pargv = argv;
1314 *poption = option;
1315 *pvalue = value;
1316 return kind;
1317 }
1318
1319 /*
1320 * Parses command line arguments. Returns JNI_FALSE if launcher
1321 * should exit without starting vm, returns JNI_TRUE if vm needs
1322 * to be started to process given options. *pret (the launcher
1323 * process return value) is set to 0 for a normal exit.
1324 */
1325 static jboolean
1326 ParseArguments(int *pargc, char ***pargv,
1327 int *pmode, char **pwhat,
1328 int *pret, const char *jrepath)
1329 {
1330 int argc = *pargc;
1331 char **argv = *pargv;
1332 int mode = LM_UNKNOWN;
1333 char *arg = NULL;
1334
1335 *pret = 0;
1336
1337 while (argc > 0 && *(arg = *argv) == '-') {
1338 char *option = NULL;
1339 char *value = NULL;
1340 int kind = GetOpt(&argc, &argv, &option, &value);
1341 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0;
1342 jboolean has_arg_any_len = value != NULL;
1343
1344 /*
1345 * Option to set main entry point
1346 */
1347 if (JLI_StrCmp(arg, "-jar") == 0) {
1348 ARG_CHECK(argc, ARG_ERROR2, arg);
1349 mode = checkMode(mode, LM_JAR, arg);
1350 } else if (JLI_StrCmp(arg, "--module") == 0 ||
1351 JLI_StrCCmp(arg, "--module=") == 0 ||
1352 JLI_StrCmp(arg, "-m") == 0) {
1353 REPORT_ERROR (has_arg, ARG_ERROR5, arg);
1354 SetMainModule(value);
1355 mode = checkMode(mode, LM_MODULE, arg);
1356 if (has_arg) {
1357 *pwhat = value;
1358 break;
1359 }
1360 } else if (JLI_StrCmp(arg, "--source") == 0 ||
1361 JLI_StrCCmp(arg, "--source=") == 0) {
1362 REPORT_ERROR (has_arg, ARG_ERROR13, arg);
1363 mode = LM_SOURCE;
1364 if (has_arg) {
1365 const char *prop = "-Djdk.internal.javac.source=";
1366 size_t size = JLI_StrLen(prop) + JLI_StrLen(value) + 1;
1367 char *propValue = (char *)JLI_MemAlloc(size);
1368 JLI_Snprintf(propValue, size, "%s%s", prop, value);
1369 AddOption(propValue, NULL);
1370 }
1371 } else if (JLI_StrCmp(arg, "--class-path") == 0 ||
1372 JLI_StrCCmp(arg, "--class-path=") == 0 ||
1373 JLI_StrCmp(arg, "-classpath") == 0 ||
1374 JLI_StrCmp(arg, "-cp") == 0) {
1375 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg);
1376 SetClassPath(value);
1377 if (mode != LM_SOURCE) {
1378 mode = LM_CLASS;
1379 }
1380 } else if (JLI_StrCmp(arg, "--list-modules") == 0) {
1381 listModules = JNI_TRUE;
1382 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) {
1383 showResolvedModules = JNI_TRUE;
1384 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) {
1385 AddOption("-Djdk.module.validation=true", NULL);
1386 validateModules = JNI_TRUE;
1387 } else if (JLI_StrCmp(arg, "--describe-module") == 0 ||
1388 JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1389 JLI_StrCmp(arg, "-d") == 0) {
1390 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg);
1391 describeModule = value;
1392 /*
1393 * Parse white-space options
1394 */
1395 } else if (has_arg) {
1396 if (kind == VM_LONG_OPTION) {
1397 AddOption(option, NULL);
1398 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) {
1399 AddLongFormOption(option, value);
1400 }
1401 /*
1402 * Error missing argument
1403 */
1404 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 ||
1405 JLI_StrCmp(arg, "-p") == 0 ||
1406 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) {
1407 REPORT_ERROR (has_arg, ARG_ERROR4, arg);
1408
1409 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) {
1410 REPORT_ERROR (has_arg, ARG_ERROR6, arg);
1411 /*
1412 * The following cases will cause the argument parsing to stop
1413 */
1414 } else if (JLI_StrCmp(arg, "-help") == 0 ||
1415 JLI_StrCmp(arg, "-h") == 0 ||
1416 JLI_StrCmp(arg, "-?") == 0) {
1417 printUsage = JNI_TRUE;
1418 return JNI_TRUE;
1419 } else if (JLI_StrCmp(arg, "--help") == 0) {
1420 printUsage = JNI_TRUE;
1421 printTo = USE_STDOUT;
1422 return JNI_TRUE;
1423 } else if (JLI_StrCmp(arg, "-version") == 0) {
1424 printVersion = JNI_TRUE;
1425 return JNI_TRUE;
1426 } else if (JLI_StrCmp(arg, "--version") == 0) {
1427 printVersion = JNI_TRUE;
1428 printTo = USE_STDOUT;
1429 return JNI_TRUE;
1430 } else if (JLI_StrCmp(arg, "-showversion") == 0) {
1431 showVersion = JNI_TRUE;
1432 } else if (JLI_StrCmp(arg, "--show-version") == 0) {
1433 showVersion = JNI_TRUE;
1434 printTo = USE_STDOUT;
1435 } else if (JLI_StrCmp(arg, "--dry-run") == 0) {
1436 dryRun = JNI_TRUE;
1437 } else if (JLI_StrCmp(arg, "-X") == 0) {
1438 printXUsage = JNI_TRUE;
1439 return JNI_TRUE;
1440 } else if (JLI_StrCmp(arg, "--help-extra") == 0) {
1441 printXUsage = JNI_TRUE;
1442 printTo = USE_STDOUT;
1443 return JNI_TRUE;
1444 /*
1445 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT.
1446 * In the latter case, any SUBOPT value not recognized will default to "all"
1447 */
1448 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 ||
1449 JLI_StrCCmp(arg, "-XshowSettings:") == 0) {
1450 showSettings = arg;
1451 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) {
1452 AddOption("-Dsun.java.launcher.diag=true", NULL);
1453 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) {
1454 AddOption("-Djdk.module.showModuleResolution=true", NULL);
1455 /*
1456 * The following case provide backward compatibility with old-style
1457 * command line options.
1458 */
1459 } else if (JLI_StrCmp(arg, "-fullversion") == 0) {
1460 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion());
1461 return JNI_FALSE;
1462 } else if (JLI_StrCmp(arg, "--full-version") == 0) {
1463 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion());
1464 return JNI_FALSE;
1465 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) {
1466 AddOption("-verbose:gc", NULL);
1467 } else if (JLI_StrCmp(arg, "-t") == 0) {
1468 AddOption("-Xt", NULL);
1469 } else if (JLI_StrCmp(arg, "-tm") == 0) {
1470 AddOption("-Xtm", NULL);
1471 } else if (JLI_StrCmp(arg, "-debug") == 0) {
1472 JLI_ReportErrorMessage(ARG_DEPRECATED, "-debug");
1473 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) {
1474 AddOption("-Xnoclassgc", NULL);
1475 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) {
1476 JLI_ReportErrorMessage(ARG_DEPRECATED, "-Xfuture");
1477 AddOption("-Xverify:all", NULL);
1478 } else if (JLI_StrCmp(arg, "-verify") == 0) {
1479 AddOption("-Xverify:all", NULL);
1480 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) {
1481 AddOption("-Xverify:remote", NULL);
1482 } else if (JLI_StrCmp(arg, "-noverify") == 0) {
1483 /*
1484 * Note that no 'deprecated' message is needed here because the VM
1485 * issues 'deprecated' messages for -noverify and -Xverify:none.
1486 */
1487 AddOption("-Xverify:none", NULL);
1488 } else if (JLI_StrCCmp(arg, "-ss") == 0 ||
1489 JLI_StrCCmp(arg, "-oss") == 0 ||
1490 JLI_StrCCmp(arg, "-ms") == 0 ||
1491 JLI_StrCCmp(arg, "-mx") == 0) {
1492 size_t tmpSize = JLI_StrLen(arg) + 6;
1493 char *tmp = JLI_MemAlloc(tmpSize);
1494 snprintf(tmp, tmpSize, "-X%s", arg + 1); /* skip '-' */
1495 AddOption(tmp, NULL);
1496 } else if (JLI_StrCmp(arg, "-checksource") == 0 ||
1497 JLI_StrCmp(arg, "-cs") == 0 ||
1498 JLI_StrCmp(arg, "-noasyncgc") == 0) {
1499 /* No longer supported */
1500 JLI_ReportErrorMessage(ARG_WARN, arg);
1501 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1502 ; /* Ignore machine independent options already handled */
1503 } else if (JLI_StrCmp(arg, "--disable-@files") == 0) {
1504 ; /* Ignore --disable-@files option already handled */
1505 } else if (ProcessPlatformOption(arg)) {
1506 ; /* Processing of platform dependent options */
1507 } else {
1508 /* java.class.path set on the command line */
1509 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) {
1510 _have_classpath = JNI_TRUE;
1511 }
1512 AddOption(arg, NULL);
1513 }
1514
1515 /*
1516 * Check for CDS option
1517 */
1518 if (JLI_StrCmp(arg, "-Xshare:dump") == 0) {
1519 dumpSharedSpaces = JNI_TRUE;
1520 }
1521 }
1522
1523 if (*pwhat == NULL && --argc >= 0) {
1524 *pwhat = *argv++;
1525 }
1526
1527 if (*pwhat == NULL) {
1528 /* LM_UNKNOWN okay for options that exit */
1529 if (!listModules && !describeModule && !validateModules && !dumpSharedSpaces) {
1530 *pret = 1;
1531 }
1532 } else if (mode == LM_UNKNOWN) {
1533 /* default to LM_CLASS if -m, -jar and -cp options are
1534 * not specified */
1535 if (!_have_classpath) {
1536 SetClassPath(".");
1537 }
1538 mode = IsSourceFile(arg) ? LM_SOURCE : LM_CLASS;
1539 } else if (mode == LM_CLASS && IsSourceFile(arg)) {
1540 /* override LM_CLASS mode if given a source file */
1541 mode = LM_SOURCE;
1542 }
1543
1544 if (mode == LM_SOURCE) {
1545 AddOption("--add-modules=ALL-DEFAULT", NULL);
1546 *pwhat = SOURCE_LAUNCHER_MAIN_ENTRY;
1547 // adjust (argc, argv) so that the name of the source file
1548 // is included in the args passed to the source launcher
1549 // main entry class
1550 *pargc = argc + 1;
1551 *pargv = argv - 1;
1552 } else {
1553 if (argc >= 0) {
1554 *pargc = argc;
1555 *pargv = argv;
1556 }
1557 }
1558
1559 *pmode = mode;
1560
1561 return JNI_TRUE;
1562 }
1563
1564 /*
1565 * Initializes the Java Virtual Machine. Also frees options array when
1566 * finished.
1567 */
1568 static jboolean
1569 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1570 {
1571 JavaVMInitArgs args;
1572 jint r;
1573
1574 memset(&args, 0, sizeof(args));
1575 args.version = JNI_VERSION_1_2;
1576 args.nOptions = numOptions;
1577 args.options = options;
1578 args.ignoreUnrecognized = JNI_FALSE;
1579
1580 if (JLI_IsTraceLauncher()) {
1581 int i = 0;
1582 printf("JavaVM args:\n ");
1583 printf("version 0x%08lx, ", (long)args.version);
1584 printf("ignoreUnrecognized is %s, ",
1585 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1586 printf("nOptions is %ld\n", (long)args.nOptions);
1587 for (i = 0; i < numOptions; i++)
1588 printf(" option[%2d] = '%s'\n",
1589 i, args.options[i].optionString);
1590 }
1591
1592 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1593 JLI_MemFree(options);
1594 return r == JNI_OK;
1595 }
1596
1597 static jclass helperClass = NULL;
1598
1599 jclass
1600 GetLauncherHelperClass(JNIEnv *env)
1601 {
1602 if (helperClass == NULL) {
1603 NULL_CHECK0(helperClass = FindBootStrapClass(env,
1604 "sun/launcher/LauncherHelper"));
1605 }
1606 return helperClass;
1607 }
1608
1609 static jmethodID makePlatformStringMID = NULL;
1610 /*
1611 * Returns a new Java string object for the specified platform string.
1612 */
1613 static jstring
1614 NewPlatformString(JNIEnv *env, char *s)
1615 {
1616 int len = (int)JLI_StrLen(s);
1617 jbyteArray ary;
1618 jclass cls = GetLauncherHelperClass(env);
1619 NULL_CHECK0(cls);
1620 if (s == NULL)
1621 return 0;
1622
1623 ary = (*env)->NewByteArray(env, len);
1624 if (ary != 0) {
1625 jstring str = 0;
1626 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1627 if (!(*env)->ExceptionOccurred(env)) {
1628 if (makePlatformStringMID == NULL) {
1629 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env,
1630 cls, "makePlatformString", "(Z[B)Ljava/lang/String;"));
1631 }
1632 str = (*env)->CallStaticObjectMethod(env, cls,
1633 makePlatformStringMID, USE_STDERR, ary);
1634 CHECK_EXCEPTION_RETURN_VALUE(0);
1635 (*env)->DeleteLocalRef(env, ary);
1636 return str;
1637 }
1638 }
1639 return 0;
1640 }
1641
1642 /*
1643 * Returns a new array of Java string objects for the specified
1644 * array of platform strings.
1645 */
1646 jobjectArray
1647 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1648 {
1649 jarray cls;
1650 jarray ary;
1651 int i;
1652
1653 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String"));
1654 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1655 CHECK_EXCEPTION_RETURN_VALUE(0);
1656 for (i = 0; i < strc; i++) {
1657 jstring str = NewPlatformString(env, *strv++);
1658 NULL_CHECK0(str);
1659 (*env)->SetObjectArrayElement(env, ary, i, str);
1660 (*env)->DeleteLocalRef(env, str);
1661 }
1662 return ary;
1663 }
1664
1665 /*
1666 * Calls LauncherHelper::checkAndLoadMain to verify that the main class
1667 * is present, it is ok to load the main class and then load the main class.
1668 * For more details refer to the java implementation.
1669 */
1670 static jclass
1671 LoadMainClass(JNIEnv *env, int mode, char *name)
1672 {
1673 jmethodID mid;
1674 jstring str;
1675 jobject result;
1676 jlong start = 0, end = 0;
1677 jclass cls = GetLauncherHelperClass(env);
1678 NULL_CHECK0(cls);
1679 if (JLI_IsTraceLauncher()) {
1680 start = CurrentTimeMicros();
1681 }
1682 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1683 "checkAndLoadMain",
1684 "(ZILjava/lang/String;)Ljava/lang/Class;"));
1685
1686 NULL_CHECK0(str = NewPlatformString(env, name));
1687 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid,
1688 USE_STDERR, mode, str));
1689
1690 if (JLI_IsTraceLauncher()) {
1691 end = CurrentTimeMicros();
1692 printf("%ld micro seconds to load main class\n", (long)(end-start));
1693 printf("----%s----\n", JLDEBUG_ENV_ENTRY);
1694 }
1695
1696 return (jclass)result;
1697 }
1698
1699 static jclass
1700 GetApplicationClass(JNIEnv *env)
1701 {
1702 jmethodID mid;
1703 jclass appClass;
1704 jclass cls = GetLauncherHelperClass(env);
1705 NULL_CHECK0(cls);
1706 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1707 "getApplicationClass",
1708 "()Ljava/lang/Class;"));
1709
1710 appClass = (*env)->CallStaticObjectMethod(env, cls, mid);
1711 CHECK_EXCEPTION_RETURN_VALUE(0);
1712 return appClass;
1713 }
1714
1715 static char* expandWildcardOnLongOpt(char* arg) {
1716 char *p, *value;
1717 size_t optLen, valueLen;
1718 p = JLI_StrChr(arg, '=');
1719
1720 if (p == NULL || p[1] == '\0') {
1721 JLI_ReportErrorMessage(ARG_ERROR1, arg);
1722 exit(1);
1723 }
1724 p++;
1725 value = (char *) JLI_WildcardExpandClasspath(p);
1726 if (p == value) {
1727 // no wildcard
1728 return arg;
1729 }
1730
1731 optLen = p - arg;
1732 valueLen = JLI_StrLen(value);
1733 p = JLI_MemAlloc(optLen + valueLen + 1);
1734 memcpy(p, arg, optLen);
1735 memcpy(p + optLen, value, valueLen);
1736 p[optLen + valueLen] = '\0';
1737 return p;
1738 }
1739
1740 /*
1741 * For tools, convert command line args thus:
1742 * javac -cp foo:foo/"*" -J-ms32m ...
1743 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1744 *
1745 * Takes 4 parameters, and returns the populated arguments
1746 */
1747 static void
1748 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv)
1749 {
1750 int argc = *pargc;
1751 char **argv = *pargv;
1752 int nargc = argc + jargc;
1753 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1754 int i;
1755
1756 *pargc = nargc;
1757 *pargv = nargv;
1758
1759 /* Copy the VM arguments (i.e. prefixed with -J) */
1760 for (i = 0; i < jargc; i++) {
1761 const char *arg = jargv[i];
1762 if (arg[0] == '-' && arg[1] == 'J') {
1763 assert(arg[2] != '\0' && "Invalid JAVA_ARGS or EXTRA_JAVA_ARGS defined by build");
1764 *nargv++ = JLI_StringDup(arg + 2);
1765 }
1766 }
1767
1768 for (i = 0; i < argc; i++) {
1769 char *arg = argv[i];
1770 if (arg[0] == '-' && arg[1] == 'J') {
1771 if (arg[2] == '\0') {
1772 JLI_ReportErrorMessage(ARG_ERROR3);
1773 exit(1);
1774 }
1775 *nargv++ = arg + 2;
1776 }
1777 }
1778
1779 /* Copy the rest of the arguments */
1780 for (i = 0; i < jargc ; i++) {
1781 const char *arg = jargv[i];
1782 if (arg[0] != '-' || arg[1] != 'J') {
1783 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg);
1784 }
1785 }
1786 for (i = 0; i < argc; i++) {
1787 char *arg = argv[i];
1788 if (arg[0] == '-') {
1789 if (arg[1] == 'J')
1790 continue;
1791 if (IsWildCardEnabled()) {
1792 if (IsClassPathOption(arg) && i < argc - 1) {
1793 *nargv++ = arg;
1794 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1795 i++;
1796 continue;
1797 }
1798 if (JLI_StrCCmp(arg, "--class-path=") == 0) {
1799 *nargv++ = expandWildcardOnLongOpt(arg);
1800 continue;
1801 }
1802 }
1803 }
1804 *nargv++ = arg;
1805 }
1806 *nargv = 0;
1807 }
1808
1809 /*
1810 * For our tools, we try to add 3 VM options:
1811 * -Denv.class.path=<envcp>
1812 * -Dapplication.home=<apphome>
1813 * -Djava.class.path=<appcp>
1814 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1815 * tells javac where to find binary classes through this environment
1816 * variable. Notice that users will be able to compile against our
1817 * tools classes (sun.tools.javac.Main) only if they explicitly add
1818 * tools.jar to CLASSPATH.
1819 * <apphome> is the directory where the application is installed.
1820 * <appcp> is the classpath to where our apps' classfiles are.
1821 */
1822 static jboolean
1823 AddApplicationOptions(int cpathc, const char **cpathv)
1824 {
1825 char *envcp, *appcp, *apphome;
1826 char home[MAXPATHLEN]; /* application home */
1827 char separator[] = { PATH_SEPARATOR, '\0' };
1828 int size, i;
1829
1830 {
1831 const char *s = getenv("CLASSPATH");
1832 if (s) {
1833 s = (char *) JLI_WildcardExpandClasspath(s);
1834 /* 40 for -Denv.class.path= */
1835 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow
1836 size_t envcpSize = JLI_StrLen(s) + 40;
1837 envcp = (char *)JLI_MemAlloc(envcpSize);
1838 snprintf(envcp, envcpSize, "-Denv.class.path=%s", s);
1839 AddOption(envcp, NULL);
1840 }
1841 }
1842 }
1843
1844 if (!GetApplicationHome(home, sizeof(home))) {
1845 JLI_ReportErrorMessage(CFG_ERROR5);
1846 return JNI_FALSE;
1847 }
1848
1849 /* 40 for '-Dapplication.home=' */
1850 size_t apphomeSize = JLI_StrLen(home) + 40;
1851 apphome = (char *)JLI_MemAlloc(apphomeSize);
1852 snprintf(apphome, apphomeSize, "-Dapplication.home=%s", home);
1853 AddOption(apphome, NULL);
1854
1855 /* How big is the application's classpath? */
1856 if (cpathc > 0) {
1857 size = 40; /* 40: "-Djava.class.path=" */
1858 for (i = 0; i < cpathc; i++) {
1859 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */
1860 }
1861 appcp = (char *)JLI_MemAlloc(size + 1);
1862 JLI_StrCpy(appcp, "-Djava.class.path=");
1863 for (i = 0; i < cpathc; i++) {
1864 JLI_StrCat(appcp, home); /* c:\program files\myapp */
1865 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */
1866 JLI_StrCat(appcp, separator); /* ; */
1867 }
1868 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */
1869 AddOption(appcp, NULL);
1870 }
1871 return JNI_TRUE;
1872 }
1873
1874 /*
1875 * inject the -Dsun.java.command pseudo property into the args structure
1876 * this pseudo property is used in the HotSpot VM to expose the
1877 * Java class name and arguments to the main method to the VM. The
1878 * HotSpot VM uses this pseudo property to store the Java class name
1879 * (or jar file name) and the arguments to the class's main method
1880 * to the instrumentation memory region. The sun.java.command pseudo
1881 * property is not exported by HotSpot to the Java layer.
1882 */
1883 void
1884 SetJavaCommandLineProp(char *what, int argc, char **argv)
1885 {
1886
1887 int i = 0;
1888 size_t len = 0;
1889 char* javaCommand = NULL;
1890 char* dashDstr = "-Dsun.java.command=";
1891
1892 if (what == NULL) {
1893 /* unexpected, one of these should be set. just return without
1894 * setting the property
1895 */
1896 return;
1897 }
1898
1899 /* determine the amount of memory to allocate assuming
1900 * the individual components will be space separated
1901 */
1902 len = JLI_StrLen(what);
1903 for (i = 0; i < argc; i++) {
1904 len += JLI_StrLen(argv[i]) + 1;
1905 }
1906
1907 /* allocate the memory */
1908 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1);
1909
1910 /* build the -D string */
1911 *javaCommand = '\0';
1912 JLI_StrCat(javaCommand, dashDstr);
1913 JLI_StrCat(javaCommand, what);
1914
1915 for (i = 0; i < argc; i++) {
1916 /* the components of the string are space separated. In
1917 * the case of embedded white space, the relationship of
1918 * the white space separated components to their true
1919 * positional arguments will be ambiguous. This issue may
1920 * be addressed in a future release.
1921 */
1922 JLI_StrCat(javaCommand, " ");
1923 JLI_StrCat(javaCommand, argv[i]);
1924 }
1925
1926 AddOption(javaCommand, NULL);
1927 }
1928
1929 /*
1930 * JVM would like to know if it's created by a standard Sun launcher, or by
1931 * user native application, the following property indicates the former.
1932 */
1933 static void SetJavaLauncherProp() {
1934 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL);
1935 }
1936
1937 /*
1938 * Prints the version information from the java.version and other properties.
1939 */
1940 static void
1941 PrintJavaVersion(JNIEnv *env)
1942 {
1943 jclass ver;
1944 jmethodID print;
1945
1946 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps"));
1947 NULL_CHECK(print = (*env)->GetStaticMethodID(env,
1948 ver,
1949 "print",
1950 "(Z)V"
1951 )
1952 );
1953
1954 (*env)->CallStaticVoidMethod(env, ver, print, printTo);
1955 }
1956
1957 /*
1958 * Prints all the Java settings, see the java implementation for more details.
1959 */
1960 static void
1961 ShowSettings(JNIEnv *env, char *optString)
1962 {
1963 jmethodID showSettingsID;
1964 jstring joptString;
1965 jclass cls = GetLauncherHelperClass(env);
1966 NULL_CHECK(cls);
1967 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls,
1968 "showSettings", "(ZLjava/lang/String;JJJ)V"));
1969 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1970 (*env)->CallStaticVoidMethod(env, cls, showSettingsID,
1971 USE_STDERR,
1972 joptString,
1973 (jlong)initialHeapSize,
1974 (jlong)maxHeapSize,
1975 (jlong)threadStackSize);
1976 }
1977
1978 /**
1979 * Show resolved modules
1980 */
1981 static void
1982 ShowResolvedModules(JNIEnv *env)
1983 {
1984 jmethodID showResolvedModulesID;
1985 jclass cls = GetLauncherHelperClass(env);
1986 NULL_CHECK(cls);
1987 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls,
1988 "showResolvedModules", "()V"));
1989 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID);
1990 }
1991
1992 /**
1993 * List observable modules
1994 */
1995 static void
1996 ListModules(JNIEnv *env)
1997 {
1998 jmethodID listModulesID;
1999 jclass cls = GetLauncherHelperClass(env);
2000 NULL_CHECK(cls);
2001 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls,
2002 "listModules", "()V"));
2003 (*env)->CallStaticVoidMethod(env, cls, listModulesID);
2004 }
2005
2006 /**
2007 * Describe a module
2008 */
2009 static void
2010 DescribeModule(JNIEnv *env, char *optString)
2011 {
2012 jmethodID describeModuleID;
2013 jstring joptString = NULL;
2014 jclass cls = GetLauncherHelperClass(env);
2015 NULL_CHECK(cls);
2016 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls,
2017 "describeModule", "(Ljava/lang/String;)V"));
2018 NULL_CHECK(joptString = NewPlatformString(env, optString));
2019 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString);
2020 }
2021
2022 /*
2023 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java
2024 */
2025 static void
2026 PrintUsage(JNIEnv* env, jboolean doXUsage)
2027 {
2028 jmethodID initHelp, vmSelect, vmSynonym, printHelp, printXUsageMessage;
2029 jstring jprogname, vm1, vm2;
2030 int i;
2031 jclass cls = GetLauncherHelperClass(env);
2032 NULL_CHECK(cls);
2033 if (doXUsage) {
2034 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls,
2035 "printXUsageMessage", "(Z)V"));
2036 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo);
2037 } else {
2038 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls,
2039 "initHelpMessage", "(Ljava/lang/String;)V"));
2040
2041 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage",
2042 "(Ljava/lang/String;Ljava/lang/String;)V"));
2043
2044 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls,
2045 "appendVmSynonymMessage",
2046 "(Ljava/lang/String;Ljava/lang/String;)V"));
2047
2048 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls,
2049 "printHelpMessage", "(Z)V"));
2050
2051 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name));
2052
2053 /* Initialize the usage message with the usual preamble */
2054 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname);
2055 CHECK_EXCEPTION_RETURN();
2056
2057
2058 /* Assemble the other variant part of the usage */
2059 for (i=1; i<knownVMsCount; i++) {
2060 if (knownVMs[i].flag == VM_KNOWN) {
2061 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
2062 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1));
2063 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
2064 CHECK_EXCEPTION_RETURN();
2065 }
2066 }
2067 for (i=1; i<knownVMsCount; i++) {
2068 if (knownVMs[i].flag == VM_ALIASED_TO) {
2069 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
2070 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1));
2071 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2);
2072 CHECK_EXCEPTION_RETURN();
2073 }
2074 }
2075
2076 /* Complete the usage message and print to stderr*/
2077 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo);
2078 }
2079 return;
2080 }
2081
2082 /*
2083 * Read the jvm.cfg file and fill the knownJVMs[] array.
2084 *
2085 * The functionality of the jvm.cfg file is subject to change without
2086 * notice and the mechanism will be removed in the future.
2087 *
2088 * The lexical structure of the jvm.cfg file is as follows:
2089 *
2090 * jvmcfg := { vmLine }
2091 * vmLine := knownLine
2092 * | aliasLine
2093 * | warnLine
2094 * | ignoreLine
2095 * | errorLine
2096 * | predicateLine
2097 * | commentLine
2098 * knownLine := flag "KNOWN" EOL
2099 * warnLine := flag "WARN" EOL
2100 * ignoreLine := flag "IGNORE" EOL
2101 * errorLine := flag "ERROR" EOL
2102 * aliasLine := flag "ALIASED_TO" flag EOL
2103 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
2104 * commentLine := "#" text EOL
2105 * flag := "-" identifier
2106 *
2107 * The semantics are that when someone specifies a flag on the command line:
2108 * - if the flag appears on a knownLine, then the identifier is used as
2109 * the name of the directory holding the JVM library (the name of the JVM).
2110 * - if the flag appears as the first flag on an aliasLine, the identifier
2111 * of the second flag is used as the name of the JVM.
2112 * - if the flag appears on a warnLine, the identifier is used as the
2113 * name of the JVM, but a warning is generated.
2114 * - if the flag appears on an ignoreLine, the identifier is recognized as the
2115 * name of a JVM, but the identifier is ignored and the default vm used
2116 * - if the flag appears on an errorLine, an error is generated.
2117 * - if the flag appears as the first flag on a predicateLine, and
2118 * the machine on which you are running passes the predicate indicated,
2119 * then the identifier of the second flag is used as the name of the JVM,
2120 * otherwise the identifier of the first flag is used as the name of the JVM.
2121 * If no flag is given on the command line, the first vmLine of the jvm.cfg
2122 * file determines the name of the JVM.
2123 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
2124 * since they only make sense if someone hasn't specified the name of the
2125 * JVM on the command line.
2126 *
2127 * The intent of the jvm.cfg file is to allow several JVM libraries to
2128 * be installed in different subdirectories of a single JRE installation,
2129 * for space-savings and convenience in testing.
2130 * The intent is explicitly not to provide a full aliasing or predicate
2131 * mechanism.
2132 */
2133 jint
2134 ReadKnownVMs(const char *jvmCfgName, jboolean speculative)
2135 {
2136 FILE *jvmCfg;
2137 char line[MAXPATHLEN+20];
2138 int cnt = 0;
2139 int lineno = 0;
2140 jlong start = 0, end = 0;
2141 int vmType;
2142 char *tmpPtr;
2143 char *altVMName = NULL;
2144 static char *whiteSpace = " \t";
2145 if (JLI_IsTraceLauncher()) {
2146 start = CurrentTimeMicros();
2147 }
2148
2149 jvmCfg = fopen(jvmCfgName, "r");
2150 if (jvmCfg == NULL) {
2151 if (!speculative) {
2152 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName);
2153 exit(1);
2154 } else {
2155 return -1;
2156 }
2157 }
2158 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
2159 vmType = VM_UNKNOWN;
2160 lineno++;
2161 if (line[0] == '#')
2162 continue;
2163 if (line[0] != '-') {
2164 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName);
2165 }
2166 if (cnt >= knownVMsLimit) {
2167 GrowKnownVMs(cnt);
2168 }
2169 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */
2170 tmpPtr = line + JLI_StrCSpn(line, whiteSpace);
2171 if (*tmpPtr == 0) {
2172 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2173 } else {
2174 /* Null-terminate this string for JLI_StringDup below */
2175 *tmpPtr++ = 0;
2176 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2177 if (*tmpPtr == 0) {
2178 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2179 } else {
2180 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) {
2181 vmType = VM_KNOWN;
2182 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) {
2183 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2184 if (*tmpPtr != 0) {
2185 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2186 }
2187 if (*tmpPtr == 0) {
2188 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2189 } else {
2190 /* Null terminate altVMName */
2191 altVMName = tmpPtr;
2192 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2193 *tmpPtr = 0;
2194 vmType = VM_ALIASED_TO;
2195 }
2196 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) {
2197 vmType = VM_WARN;
2198 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) {
2199 vmType = VM_IGNORE;
2200 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) {
2201 vmType = VM_ERROR;
2202 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) {
2203 /* ignored */
2204 } else {
2205 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]);
2206 vmType = VM_KNOWN;
2207 }
2208 }
2209 }
2210
2211 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line);
2212 if (vmType != VM_UNKNOWN) {
2213 knownVMs[cnt].name = JLI_StringDup(line);
2214 knownVMs[cnt].flag = vmType;
2215 switch (vmType) {
2216 default:
2217 break;
2218 case VM_ALIASED_TO:
2219 knownVMs[cnt].alias = JLI_StringDup(altVMName);
2220 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n",
2221 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
2222 break;
2223 }
2224 cnt++;
2225 }
2226 }
2227 fclose(jvmCfg);
2228 knownVMsCount = cnt;
2229
2230 if (JLI_IsTraceLauncher()) {
2231 end = CurrentTimeMicros();
2232 printf("%ld micro seconds to parse jvm.cfg\n", (long)(end-start));
2233 }
2234
2235 return cnt;
2236 }
2237
2238
2239 static void
2240 GrowKnownVMs(int minimum)
2241 {
2242 struct vmdesc* newKnownVMs;
2243 int newMax;
2244
2245 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
2246 if (newMax <= minimum) {
2247 newMax = minimum;
2248 }
2249 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
2250 if (knownVMs != NULL) {
2251 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
2252 }
2253 JLI_MemFree(knownVMs);
2254 knownVMs = newKnownVMs;
2255 knownVMsLimit = newMax;
2256 }
2257
2258
2259 /* Returns index of VM or -1 if not found */
2260 static int
2261 KnownVMIndex(const char* name)
2262 {
2263 int i;
2264 if (JLI_StrCCmp(name, "-J") == 0) name += 2;
2265 for (i = 0; i < knownVMsCount; i++) {
2266 if (!JLI_StrCmp(name, knownVMs[i].name)) {
2267 return i;
2268 }
2269 }
2270 return -1;
2271 }
2272
2273 static void
2274 FreeKnownVMs()
2275 {
2276 int i;
2277 for (i = 0; i < knownVMsCount; i++) {
2278 JLI_MemFree(knownVMs[i].name);
2279 knownVMs[i].name = NULL;
2280 }
2281 JLI_MemFree(knownVMs);
2282 }
2283
2284 /*
2285 * Displays the splash screen according to the jar file name
2286 * and image file names stored in environment variables
2287 */
2288 void
2289 ShowSplashScreen()
2290 {
2291 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
2292 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
2293 int data_size;
2294 void *image_data = NULL;
2295 float scale_factor = 1;
2296 char *scaled_splash_name = NULL;
2297 jboolean isImageScaled = JNI_FALSE;
2298 size_t maxScaledImgNameLength = 0;
2299 if (file_name == NULL){
2300 return;
2301 }
2302
2303 if (!DoSplashInit()) {
2304 goto exit;
2305 }
2306
2307 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name);
2308
2309 scaled_splash_name = JLI_MemAlloc(
2310 maxScaledImgNameLength * sizeof(char));
2311 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name,
2312 &scale_factor,
2313 scaled_splash_name, maxScaledImgNameLength);
2314 if (jar_name) {
2315
2316 if (isImageScaled) {
2317 image_data = JLI_JarUnpackFile(
2318 jar_name, scaled_splash_name, &data_size);
2319 }
2320
2321 if (!image_data) {
2322 scale_factor = 1;
2323 image_data = JLI_JarUnpackFile(
2324 jar_name, file_name, &data_size);
2325 }
2326 if (image_data) {
2327 DoSplashSetScaleFactor(scale_factor);
2328 DoSplashLoadMemory(image_data, data_size);
2329 JLI_MemFree(image_data);
2330 } else {
2331 DoSplashClose();
2332 }
2333 } else {
2334 if (isImageScaled) {
2335 DoSplashSetScaleFactor(scale_factor);
2336 DoSplashLoadFile(scaled_splash_name);
2337 } else {
2338 DoSplashLoadFile(file_name);
2339 }
2340 }
2341 JLI_MemFree(scaled_splash_name);
2342
2343 DoSplashSetFileJarName(file_name, jar_name);
2344
2345 exit:
2346 /*
2347 * Done with all command line processing and potential re-execs so
2348 * clean up the environment.
2349 */
2350 (void)UnsetEnv(ENV_ENTRY);
2351 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
2352 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
2353
2354 JLI_MemFree(splash_jar_entry);
2355 JLI_MemFree(splash_file_entry);
2356
2357 }
2358
2359 static const char* GetFullVersion()
2360 {
2361 return _fVersion;
2362 }
2363
2364 static const char* GetProgramName()
2365 {
2366 return _program_name;
2367 }
2368
2369 static const char* GetLauncherName()
2370 {
2371 return _launcher_name;
2372 }
2373
2374 static jboolean IsJavaArgs()
2375 {
2376 return _is_java_args;
2377 }
2378
2379 static jboolean
2380 IsWildCardEnabled()
2381 {
2382 return _wc_enabled;
2383 }
2384
2385 int
2386 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize,
2387 int argc, char **argv,
2388 int mode, char *what, int ret)
2389 {
2390 if (threadStackSize == 0) {
2391 /*
2392 * If the user hasn't specified a non-zero stack size ask the JVM for its default.
2393 * A returned 0 means 'use the system default' for a platform, e.g., Windows.
2394 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
2395 * return its default stack size through the init args structure.
2396 */
2397 struct JDK1_1InitArgs args1_1;
2398 memset((void*)&args1_1, 0, sizeof(args1_1));
2399 args1_1.version = JNI_VERSION_1_1;
2400 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
2401 if (args1_1.javaStackSize > 0) {
2402 threadStackSize = args1_1.javaStackSize;
2403 }
2404 }
2405
2406 { /* Create a new thread to create JVM and invoke main method */
2407 JavaMainArgs args;
2408 int rslt;
2409
2410 args.argc = argc;
2411 args.argv = argv;
2412 args.mode = mode;
2413 args.what = what;
2414 args.ifn = *ifn;
2415
2416 rslt = CallJavaMainInNewThread(threadStackSize, (void*)&args);
2417 /* If the caller has deemed there is an error we
2418 * simply return that, otherwise we return the value of
2419 * the callee
2420 */
2421 return (ret != 0) ? ret : rslt;
2422 }
2423 }
2424
2425 static void
2426 DumpState()
2427 {
2428 if (!JLI_IsTraceLauncher()) return ;
2429 printf("Launcher state:\n");
2430 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex());
2431 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off");
2432 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off");
2433 printf("\tprogram name:%s\n", GetProgramName());
2434 printf("\tlauncher name:%s\n", GetLauncherName());
2435 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off");
2436 printf("\tfullversion:%s\n", GetFullVersion());
2437 }
2438
2439 /*
2440 * A utility procedure to always print to stderr
2441 */
2442 JNIEXPORT void JNICALL
2443 JLI_ReportMessage(const char* fmt, ...)
2444 {
2445 va_list vl;
2446 va_start(vl, fmt);
2447 vfprintf(stderr, fmt, vl);
2448 fprintf(stderr, "\n");
2449 va_end(vl);
2450 }
2451
2452 /*
2453 * A utility procedure to always print to stdout
2454 */
2455 void
2456 JLI_ShowMessage(const char* fmt, ...)
2457 {
2458 va_list vl;
2459 va_start(vl, fmt);
2460 vfprintf(stdout, fmt, vl);
2461 fprintf(stdout, "\n");
2462 va_end(vl);
2463 }