1 /*
2 * Copyright (c) 1995, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /*
27 * Shared source for 'java' command line tool.
28 *
29 * If JAVA_ARGS is defined, then acts as a launcher for applications. For
30 * instance, the JDK command line tools such as javac and javadoc (see
31 * makefiles for more details) are built with this program. Any arguments
32 * prefixed with '-J' will be passed directly to the 'java' command.
33 */
34
35 /*
36 * One job of the launcher is to remove command line options which the
37 * vm does not understand and will not process. These options include
38 * options which select which style of vm is run (e.g. -client and
39 * -server) as well as options which select the data model to use.
40 * Additionally, for tools which invoke an underlying vm "-J-foo"
41 * options are turned into "-foo" options to the vm. This option
42 * filtering is handled in a number of places in the launcher, some of
43 * it in machine-dependent code. In this file, the function
44 * CheckJvmType removes vm style options and TranslateApplicationArgs
45 * removes "-J" prefixes. The CreateExecutionEnvironment function processes
46 * and removes -d<n> options. On unix, there is a possibility that the running
47 * data model may not match to the desired data model, in this case an exec is
48 * required to start the desired model. If the data models match, then
49 * ParseArguments will remove the -d<n> flags. If the data models do not match
50 * the CreateExecutionEnviroment will remove the -d<n> flags.
51 */
52
53
54 #include "java.h"
55 #include "jni.h"
56
57 /*
58 * A NOTE TO DEVELOPERS: For performance reasons it is important that
59 * the program image remain relatively small until after SelectVersion
60 * CreateExecutionEnvironment have finished their possibly recursive
61 * processing. Watch everything, but resist all temptations to use Java
62 * interfaces.
63 */
64
65 #define USE_STDERR JNI_TRUE /* we usually print to stderr */
66 #define USE_STDOUT JNI_FALSE
67
68 static jboolean printVersion = JNI_FALSE; /* print and exit */
69 static jboolean showVersion = JNI_FALSE; /* print but continue */
70 static jboolean printUsage = JNI_FALSE; /* print and exit*/
71 static jboolean printTo = USE_STDERR; /* where to print version/usage */
72 static jboolean printXUsage = JNI_FALSE; /* print and exit*/
73 static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */
74 static char *showSettings = NULL; /* print but continue */
75 static jboolean showResolvedModules = JNI_FALSE;
76 static jboolean listModules = JNI_FALSE;
77 static char *describeModule = NULL;
78 static jboolean validateModules = JNI_FALSE;
79
80 static const char *_program_name;
81 static const char *_launcher_name;
82 static jboolean _is_java_args = JNI_FALSE;
83 static jboolean _have_classpath = JNI_FALSE;
84 static const char *_fVersion;
85 static jboolean _wc_enabled = JNI_FALSE;
86
87 /*
88 * Entries for splash screen environment variables.
89 * putenv is performed in SelectVersion. We need
90 * them in memory until UnsetEnv, so they are made static
91 * global instead of auto local.
92 */
93 static char* splash_file_entry = NULL;
94 static char* splash_jar_entry = NULL;
95
96 /*
97 * List of VM options to be specified when the VM is created.
98 */
99 static JavaVMOption *options;
100 static int numOptions, maxOptions;
101
102 /*
103 * Prototypes for functions internal to launcher.
104 */
105 static void SetClassPath(const char *s);
106 static void SetMainModule(const char *s);
107 static void SelectVersion(int argc, char **argv, char **main_class);
108 static void SetJvmEnvironment(int argc, char **argv);
109 static jboolean ParseArguments(int *pargc, char ***pargv,
110 int *pmode, char **pwhat,
111 int *pret, const char *jrepath);
112 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv,
113 InvocationFunctions *ifn);
114 static jstring NewPlatformString(JNIEnv *env, char *s);
115 static jclass LoadMainClass(JNIEnv *env, int mode, char *name);
116 static jclass GetApplicationClass(JNIEnv *env);
117
118 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv);
119 static jboolean AddApplicationOptions(int cpathc, const char **cpathv);
120 static void SetApplicationClassPath(const char**);
121
122 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF);
123 static void PrintUsage(JNIEnv* env, jboolean doXUsage);
124 static void ShowSettings(JNIEnv* env, char *optString);
125 static void ShowResolvedModules(JNIEnv* env);
126 static void ListModules(JNIEnv* env);
127 static void DescribeModule(JNIEnv* env, char* optString);
128 static jboolean ValidateModules(JNIEnv* env);
129
130 static void SetPaths(int argc, char **argv);
131
132 static void DumpState();
133
134 enum OptionKind {
135 LAUNCHER_OPTION = 0,
136 LAUNCHER_OPTION_WITH_ARGUMENT,
137 LAUNCHER_MAIN_OPTION,
138 VM_LONG_OPTION,
139 VM_LONG_OPTION_WITH_ARGUMENT,
140 VM_OPTION
141 };
142
143 static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue);
144 static jboolean IsOptionWithArgument(int argc, char **argv);
145
146 /* Maximum supported entries from jvm.cfg. */
147 #define INIT_MAX_KNOWN_VMS 10
148
149 /* Values for vmdesc.flag */
150 enum vmdesc_flag {
151 VM_UNKNOWN = -1,
152 VM_KNOWN,
153 VM_ALIASED_TO,
154 VM_WARN,
155 VM_ERROR,
156 VM_IF_SERVER_CLASS,
157 VM_IGNORE
158 };
159
160 struct vmdesc {
161 char *name;
162 int flag;
163 char *alias;
164 char *server_class;
165 };
166 static struct vmdesc *knownVMs = NULL;
167 static int knownVMsCount = 0;
168 static int knownVMsLimit = 0;
169
170 static void GrowKnownVMs(int minimum);
171 static int KnownVMIndex(const char* name);
172 static void FreeKnownVMs();
173 static jboolean IsWildCardEnabled();
174
175
176 #define SOURCE_LAUNCHER_MAIN_ENTRY "jdk.compiler/com.sun.tools.javac.launcher.Main"
177
178 /*
179 * This reports error. VM will not be created and no usage is printed.
180 */
181 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \
182 do { \
183 if (!AC_ok) { \
184 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
185 printUsage = JNI_FALSE; \
186 *pret = 1; \
187 return JNI_FALSE; \
188 } \
189 } while (JNI_FALSE)
190
191 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \
192 do { \
193 if (AC_arg_count < 1) { \
194 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
195 printUsage = JNI_TRUE; \
196 *pret = 1; \
197 return JNI_TRUE; \
198 } \
199 } while (JNI_FALSE)
200
201 /*
202 * Running Java code in primordial thread caused many problems. We will
203 * create a new thread to invoke JVM. See 6316197 for more information.
204 */
205 static jlong threadStackSize = 0; /* stack size of the new thread */
206 static jlong maxHeapSize = 0; /* max heap size */
207 static jlong initialHeapSize = 0; /* initial heap size */
208
209 /*
210 * A minimum initial-thread stack size suitable for most platforms.
211 * This is the minimum amount of stack needed to load the JVM such
212 * that it can reject a too small -Xss value. If this is too small
213 * JVM initialization would cause a StackOverflowError.
214 */
215 #ifndef STACK_SIZE_MINIMUM
216 #define STACK_SIZE_MINIMUM (64 * KB)
217 #endif
218
219 /*
220 * Entry point.
221 */
222 JNIEXPORT int JNICALL
223 JLI_Launch(int argc, char ** argv, /* main argc, argv */
224 int jargc, const char** jargv, /* java args */
225 int appclassc, const char** appclassv, /* app classpath */
226 const char* fullversion, /* full version defined */
227 const char* dotversion, /* UNUSED dot version defined */
228 const char* pname, /* program name */
229 const char* lname, /* launcher name */
230 jboolean javaargs, /* JAVA_ARGS */
231 jboolean cpwildcard, /* classpath wildcard*/
232 jboolean javaw, /* windows-only javaw */
233 jint ergo /* unused */
234 )
235 {
236 int mode = LM_UNKNOWN;
237 char *what = NULL;
238 char *main_class = NULL;
239 int ret;
240 InvocationFunctions ifn;
241 jlong start, end;
242 char jvmpath[MAXPATHLEN];
243 char jrepath[MAXPATHLEN];
244 char jvmcfg[MAXPATHLEN];
245
246 _fVersion = fullversion;
247 _launcher_name = lname;
248 _program_name = pname;
249 _is_java_args = javaargs;
250 _wc_enabled = cpwildcard;
251
252 InitLauncher(javaw);
253 DumpState();
254 if (JLI_IsTraceLauncher()) {
255 int i;
256 printf("Java args:\n");
257 for (i = 0; i < jargc ; i++) {
258 printf("jargv[%d] = %s\n", i, jargv[i]);
259 }
260 printf("Command line args:\n");
261 for (i = 0; i < argc ; i++) {
262 printf("argv[%d] = %s\n", i, argv[i]);
263 }
264 AddOption("-Dsun.java.launcher.diag=true", NULL);
265 }
266
267 /*
268 * SelectVersion() has several responsibilities:
269 *
270 * 1) Disallow specification of another JRE. With 1.9, another
271 * version of the JRE cannot be invoked.
272 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since
273 * all mJRE directives have been stripped from the request but
274 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been
275 * invoked from the command line.
276 */
277 SelectVersion(argc, argv, &main_class);
278
279 CreateExecutionEnvironment(&argc, &argv,
280 jrepath, sizeof(jrepath),
281 jvmpath, sizeof(jvmpath),
282 jvmcfg, sizeof(jvmcfg));
283
284 if (!IsJavaArgs()) {
285 SetJvmEnvironment(argc,argv);
286 }
287
288 ifn.CreateJavaVM = 0;
289 ifn.GetDefaultJavaVMInitArgs = 0;
290
291 if (JLI_IsTraceLauncher()) {
292 start = CounterGet();
293 }
294
295 if (!LoadJavaVM(jvmpath, &ifn)) {
296 return(6);
297 }
298
299 if (JLI_IsTraceLauncher()) {
300 end = CounterGet();
301 }
302
303 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n",
304 (long)(jint)Counter2Micros(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 int
392 JavaMain(void* _args)
393 {
394 JavaMainArgs *args = (JavaMainArgs *)_args;
395 int argc = args->argc;
396 char **argv = args->argv;
397 int mode = args->mode;
398 char *what = args->what;
399 InvocationFunctions ifn = args->ifn;
400
401 JavaVM *vm = 0;
402 JNIEnv *env = 0;
403 jclass mainClass = NULL;
404 jclass appClass = NULL; // actual application class being launched
405 jmethodID mainID;
406 jobjectArray mainArgs;
407 int ret = 0;
408 jlong start, end;
409
410 RegisterThread();
411
412 /* Initialize the virtual machine */
413 start = CounterGet();
414 if (!InitializeJVM(&vm, &env, &ifn)) {
415 JLI_ReportErrorMessage(JVM_ERROR1);
416 exit(1);
417 }
418
419 if (showSettings != NULL) {
420 ShowSettings(env, showSettings);
421 CHECK_EXCEPTION_LEAVE(1);
422 }
423
424 // show resolved modules and continue
425 if (showResolvedModules) {
426 ShowResolvedModules(env);
427 CHECK_EXCEPTION_LEAVE(1);
428 }
429
430 // list observable modules, then exit
431 if (listModules) {
432 ListModules(env);
433 CHECK_EXCEPTION_LEAVE(1);
434 LEAVE();
435 }
436
437 // describe a module, then exit
438 if (describeModule != NULL) {
439 DescribeModule(env, describeModule);
440 CHECK_EXCEPTION_LEAVE(1);
441 LEAVE();
442 }
443
444 if (printVersion || showVersion) {
445 PrintJavaVersion(env, showVersion);
446 CHECK_EXCEPTION_LEAVE(0);
447 if (printVersion) {
448 LEAVE();
449 }
450 }
451
452 // modules have been validated at startup so exit
453 if (validateModules) {
454 LEAVE();
455 }
456
457 /* If the user specified neither a class name nor a JAR file */
458 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) {
459 PrintUsage(env, printXUsage);
460 CHECK_EXCEPTION_LEAVE(1);
461 LEAVE();
462 }
463
464 FreeKnownVMs(); /* after last possible PrintUsage */
465
466 if (JLI_IsTraceLauncher()) {
467 end = CounterGet();
468 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n",
469 (long)(jint)Counter2Micros(end-start));
470 }
471
472 /* At this stage, argc/argv have the application's arguments */
473 if (JLI_IsTraceLauncher()){
474 int i;
475 printf("%s is '%s'\n", launchModeNames[mode], what);
476 printf("App's argc is %d\n", argc);
477 for (i=0; i < argc; i++) {
478 printf(" argv[%2d] = '%s'\n", i, argv[i]);
479 }
480 }
481
482 ret = 1;
483
484 /*
485 * Get the application's main class. It also checks if the main
486 * method exists.
487 *
488 * See bugid 5030265. The Main-Class name has already been parsed
489 * from the manifest, but not parsed properly for UTF-8 support.
490 * Hence the code here ignores the value previously extracted and
491 * uses the pre-existing code to reextract the value. This is
492 * possibly an end of release cycle expedient. However, it has
493 * also been discovered that passing some character sets through
494 * the environment has "strange" behavior on some variants of
495 * Windows. Hence, maybe the manifest parsing code local to the
496 * launcher should never be enhanced.
497 *
498 * Hence, future work should either:
499 * 1) Correct the local parsing code and verify that the
500 * Main-Class attribute gets properly passed through
501 * all environments,
502 * 2) Remove the vestages of maintaining main_class through
503 * the environment (and remove these comments).
504 *
505 * This method also correctly handles launching existing JavaFX
506 * applications that may or may not have a Main-Class manifest entry.
507 */
508 mainClass = LoadMainClass(env, mode, what);
509 CHECK_EXCEPTION_NULL_LEAVE(mainClass);
510 /*
511 * In some cases when launching an application that needs a helper, e.g., a
512 * JavaFX application with no main method, the mainClass will not be the
513 * applications own main class but rather a helper class. To keep things
514 * consistent in the UI we need to track and report the application main class.
515 */
516 appClass = GetApplicationClass(env);
517 NULL_CHECK_RETURN_VALUE(appClass, -1);
518
519 /* Build platform specific argument array */
520 mainArgs = CreateApplicationArgs(env, argv, argc);
521 CHECK_EXCEPTION_NULL_LEAVE(mainArgs);
522
523 if (dryRun) {
524 ret = 0;
525 LEAVE();
526 }
527
528 /*
529 * PostJVMInit uses the class name as the application name for GUI purposes,
530 * for example, on OSX this sets the application name in the menu bar for
531 * both SWT and JavaFX. So we'll pass the actual application class here
532 * instead of mainClass as that may be a launcher or helper class instead
533 * of the application class.
534 */
535 PostJVMInit(env, appClass, vm);
536 CHECK_EXCEPTION_LEAVE(1);
537
538 /*
539 * The LoadMainClass not only loads the main class, it will also ensure
540 * that the main method's signature is correct, therefore further checking
541 * is not required. The main method is invoked here so that extraneous java
542 * stacks are not in the application stack trace.
543 */
544 mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
545 "([Ljava/lang/String;)V");
546 CHECK_EXCEPTION_NULL_LEAVE(mainID);
547
548 /* Invoke main method. */
549 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs);
550
551 /*
552 * The launcher's exit code (in the absence of calls to
553 * System.exit) will be non-zero if main threw an exception.
554 */
555 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1;
556
557 LEAVE();
558 }
559
560 /*
561 * Test if the given name is one of the class path options.
562 */
563 static jboolean
564 IsClassPathOption(const char* name) {
565 return JLI_StrCmp(name, "-classpath") == 0 ||
566 JLI_StrCmp(name, "-cp") == 0 ||
567 JLI_StrCmp(name, "--class-path") == 0;
568 }
569
570 /*
571 * Test if the given name is a launcher option taking the main entry point.
572 */
573 static jboolean
574 IsLauncherMainOption(const char* name) {
575 return JLI_StrCmp(name, "--module") == 0 ||
576 JLI_StrCmp(name, "-m") == 0;
577 }
578
579 /*
580 * Test if the given name is a white-space launcher option.
581 */
582 static jboolean
583 IsLauncherOption(const char* name) {
584 return IsClassPathOption(name) ||
585 IsLauncherMainOption(name) ||
586 JLI_StrCmp(name, "--describe-module") == 0 ||
587 JLI_StrCmp(name, "-d") == 0 ||
588 JLI_StrCmp(name, "--source") == 0;
589 }
590
591 /*
592 * Test if the given name is a module-system white-space option that
593 * will be passed to the VM with its corresponding long-form option
594 * name and "=" delimiter.
595 */
596 static jboolean
597 IsModuleOption(const char* name) {
598 return JLI_StrCmp(name, "--module-path") == 0 ||
599 JLI_StrCmp(name, "-p") == 0 ||
600 JLI_StrCmp(name, "--upgrade-module-path") == 0 ||
601 JLI_StrCmp(name, "--add-modules") == 0 ||
602 JLI_StrCmp(name, "--limit-modules") == 0 ||
603 JLI_StrCmp(name, "--add-exports") == 0 ||
604 JLI_StrCmp(name, "--add-opens") == 0 ||
605 JLI_StrCmp(name, "--add-reads") == 0 ||
606 JLI_StrCmp(name, "--patch-module") == 0;
607 }
608
609 static jboolean
610 IsLongFormModuleOption(const char* name) {
611 return JLI_StrCCmp(name, "--module-path=") == 0 ||
612 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 ||
613 JLI_StrCCmp(name, "--add-modules=") == 0 ||
614 JLI_StrCCmp(name, "--limit-modules=") == 0 ||
615 JLI_StrCCmp(name, "--add-exports=") == 0 ||
616 JLI_StrCCmp(name, "--add-reads=") == 0 ||
617 JLI_StrCCmp(name, "--patch-module=") == 0;
618 }
619
620 /*
621 * Test if the given name has a white space option.
622 */
623 jboolean
624 IsWhiteSpaceOption(const char* name) {
625 return IsModuleOption(name) ||
626 IsLauncherOption(name);
627 }
628
629 /*
630 * Check if it is OK to set the mode.
631 * If the mode was previously set, and should not be changed,
632 * a fatal error is reported.
633 */
634 static int
635 checkMode(int mode, int newMode, const char *arg) {
636 if (mode == LM_SOURCE) {
637 JLI_ReportErrorMessage(ARG_ERROR14, arg);
638 exit(1);
639 }
640 return newMode;
641 }
642
643 /*
644 * Test if an arg identifies a source file.
645 */
646 jboolean
647 IsSourceFile(const char *arg) {
648 struct stat st;
649 return (JLI_HasSuffix(arg, ".java") && stat(arg, &st) == 0);
650 }
651
652 /*
653 * Checks the command line options to find which JVM type was
654 * specified. If no command line option was given for the JVM type,
655 * the default type is used. The environment variable
656 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also
657 * checked as ways of specifying which JVM type to invoke.
658 */
659 char *
660 CheckJvmType(int *pargc, char ***argv, jboolean speculative) {
661 int i, argi;
662 int argc;
663 char **newArgv;
664 int newArgvIdx = 0;
665 int isVMType;
666 int jvmidx = -1;
667 char *jvmtype = getenv("JDK_ALTERNATE_VM");
668
669 argc = *pargc;
670
671 /* To make things simpler we always copy the argv array */
672 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *));
673
674 /* The program name is always present */
675 newArgv[newArgvIdx++] = (*argv)[0];
676
677 for (argi = 1; argi < argc; argi++) {
678 char *arg = (*argv)[argi];
679 isVMType = 0;
680
681 if (IsJavaArgs()) {
682 if (arg[0] != '-') {
683 newArgv[newArgvIdx++] = arg;
684 continue;
685 }
686 } else {
687 if (IsWhiteSpaceOption(arg)) {
688 newArgv[newArgvIdx++] = arg;
689 argi++;
690 if (argi < argc) {
691 newArgv[newArgvIdx++] = (*argv)[argi];
692 }
693 continue;
694 }
695 if (arg[0] != '-') break;
696 }
697
698 /* Did the user pass an explicit VM type? */
699 i = KnownVMIndex(arg);
700 if (i >= 0) {
701 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */
702 isVMType = 1;
703 *pargc = *pargc - 1;
704 }
705
706 /* Did the user specify an "alternate" VM? */
707 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) {
708 isVMType = 1;
709 jvmtype = arg+((arg[1]=='X')? 10 : 12);
710 jvmidx = -1;
711 }
712
713 if (!isVMType) {
714 newArgv[newArgvIdx++] = arg;
715 }
716 }
717
718 /*
719 * Finish copying the arguments if we aborted the above loop.
720 * NOTE that if we aborted via "break" then we did NOT copy the
721 * last argument above, and in addition argi will be less than
722 * argc.
723 */
724 while (argi < argc) {
725 newArgv[newArgvIdx++] = (*argv)[argi];
726 argi++;
727 }
728
729 /* argv is null-terminated */
730 newArgv[newArgvIdx] = 0;
731
732 /* Copy back argv */
733 *argv = newArgv;
734 *pargc = newArgvIdx;
735
736 /* use the default VM type if not specified (no alias processing) */
737 if (jvmtype == NULL) {
738 char* result = knownVMs[0].name+1;
739 JLI_TraceLauncher("Default VM: %s\n", result);
740 return result;
741 }
742
743 /* if using an alternate VM, no alias processing */
744 if (jvmidx < 0)
745 return jvmtype;
746
747 /* Resolve aliases first */
748 {
749 int loopCount = 0;
750 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) {
751 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias);
752
753 if (loopCount > knownVMsCount) {
754 if (!speculative) {
755 JLI_ReportErrorMessage(CFG_ERROR1);
756 exit(1);
757 } else {
758 return "ERROR";
759 /* break; */
760 }
761 }
762
763 if (nextIdx < 0) {
764 if (!speculative) {
765 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias);
766 exit(1);
767 } else {
768 return "ERROR";
769 }
770 }
771 jvmidx = nextIdx;
772 jvmtype = knownVMs[jvmidx].name+1;
773 loopCount++;
774 }
775 }
776
777 switch (knownVMs[jvmidx].flag) {
778 case VM_WARN:
779 if (!speculative) {
780 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1);
781 }
782 /* fall through */
783 case VM_IGNORE:
784 jvmtype = knownVMs[jvmidx=0].name + 1;
785 /* fall through */
786 case VM_KNOWN:
787 break;
788 case VM_ERROR:
789 if (!speculative) {
790 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype);
791 exit(1);
792 } else {
793 return "ERROR";
794 }
795 }
796
797 return jvmtype;
798 }
799
800 /*
801 * This method must be called before the VM is loaded, primarily
802 * used to parse and set any VM related options or env variables.
803 * This function is non-destructive leaving the argument list intact.
804 */
805 static void
806 SetJvmEnvironment(int argc, char **argv) {
807
808 static const char* NMT_Env_Name = "NMT_LEVEL_";
809 int i;
810 /* process only the launcher arguments */
811 for (i = 0; i < argc; i++) {
812 char *arg = argv[i];
813 /*
814 * Since this must be a VM flag we stop processing once we see
815 * an argument the launcher would not have processed beyond (such
816 * as -version or -h), or an argument that indicates the following
817 * arguments are for the application (i.e. the main class name, or
818 * the -jar argument).
819 */
820 if (i > 0) {
821 char *prev = argv[i - 1];
822 // skip non-dash arg preceded by class path specifiers
823 if (*arg != '-' && IsWhiteSpaceOption(prev)) {
824 continue;
825 }
826
827 if (*arg != '-' || isTerminalOpt(arg)) {
828 return;
829 }
830 }
831 /*
832 * The following case checks for "-XX:NativeMemoryTracking=value".
833 * If value is non null, an environmental variable set to this value
834 * will be created to be used by the JVM.
835 * The argument is passed to the JVM, which will check validity.
836 * The JVM is responsible for removing the env variable.
837 */
838 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) {
839 int retval;
840 // get what follows this parameter, include "="
841 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking=");
842 if (JLI_StrLen(arg) > pnlen) {
843 char* value = arg + pnlen;
844 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits
845
846 /*
847 * ensures that malloc successful
848 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call
849 * that could store the address.
850 */
851 char * pbuf = (char*)JLI_MemAlloc(pbuflen);
852
853 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value);
854 retval = JLI_PutEnv(pbuf);
855 if (JLI_IsTraceLauncher()) {
856 char* envName;
857 char* envBuf;
858
859 // ensures that malloc successful
860 envName = (char*)JLI_MemAlloc(pbuflen);
861 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid());
862
863 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName);
864 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf);
865 envBuf = getenv(envName);
866 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf);
867 free(envName);
868 }
869 }
870 }
871 }
872 }
873
874 /* copied from HotSpot function "atomll()" */
875 static int
876 parse_size(const char *s, jlong *result) {
877 jlong n = 0;
878 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n);
879 if (args_read != 1) {
880 return 0;
881 }
882 while (*s != '\0' && *s >= '0' && *s <= '9') {
883 s++;
884 }
885 // 4705540: illegal if more characters are found after the first non-digit
886 if (JLI_StrLen(s) > 1) {
887 return 0;
888 }
889 switch (*s) {
890 case 'T': case 't':
891 *result = n * GB * KB;
892 return 1;
893 case 'G': case 'g':
894 *result = n * GB;
895 return 1;
896 case 'M': case 'm':
897 *result = n * MB;
898 return 1;
899 case 'K': case 'k':
900 *result = n * KB;
901 return 1;
902 case '\0':
903 *result = n;
904 return 1;
905 default:
906 /* Create JVM with default stack and let VM handle malformed -Xss string*/
907 return 0;
908 }
909 }
910
911 /*
912 * Adds a new VM option with the given name and value.
913 */
914 void
915 AddOption(char *str, void *info)
916 {
917 /*
918 * Expand options array if needed to accommodate at least one more
919 * VM option.
920 */
921 if (numOptions >= maxOptions) {
922 if (options == 0) {
923 maxOptions = 4;
924 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
925 } else {
926 JavaVMOption *tmp;
927 maxOptions *= 2;
928 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
929 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
930 JLI_MemFree(options);
931 options = tmp;
932 }
933 }
934 options[numOptions].optionString = str;
935 options[numOptions++].extraInfo = info;
936
937 /*
938 * -Xss is used both by the JVM and here to establish the stack size of the thread
939 * created to launch the JVM. In the latter case we need to ensure we don't go
940 * below the minimum stack size allowed. If -Xss is zero that tells the JVM to use
941 * 'default' sizes (either from JVM or system configuration, e.g. 'ulimit -s' on linux),
942 * and is not itself a small stack size that will be rejected. So we ignore -Xss0 here.
943 */
944 if (JLI_StrCCmp(str, "-Xss") == 0) {
945 jlong tmp;
946 if (parse_size(str + 4, &tmp)) {
947 threadStackSize = tmp;
948 if (threadStackSize > 0 && threadStackSize < (jlong)STACK_SIZE_MINIMUM) {
949 threadStackSize = STACK_SIZE_MINIMUM;
950 }
951 }
952 }
953
954 if (JLI_StrCCmp(str, "-Xmx") == 0) {
955 jlong tmp;
956 if (parse_size(str + 4, &tmp)) {
957 maxHeapSize = tmp;
958 }
959 }
960
961 if (JLI_StrCCmp(str, "-Xms") == 0) {
962 jlong tmp;
963 if (parse_size(str + 4, &tmp)) {
964 initialHeapSize = tmp;
965 }
966 }
967 }
968
969 static void
970 SetClassPath(const char *s)
971 {
972 char *def;
973 const char *orig = s;
974 static const char format[] = "-Djava.class.path=%s";
975 /*
976 * usually we should not get a null pointer, but there are cases where
977 * we might just get one, in which case we simply ignore it, and let the
978 * caller deal with it
979 */
980 if (s == NULL)
981 return;
982 s = JLI_WildcardExpandClasspath(s);
983 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s))
984 // s is became corrupted after expanding wildcards
985 return;
986 def = JLI_MemAlloc(sizeof(format)
987 - 2 /* strlen("%s") */
988 + JLI_StrLen(s));
989 sprintf(def, format, s);
990 AddOption(def, NULL);
991 if (s != orig)
992 JLI_MemFree((char *) s);
993 _have_classpath = JNI_TRUE;
994 }
995
996 static void
997 AddLongFormOption(const char *option, const char *arg)
998 {
999 static const char format[] = "%s=%s";
1000 char *def;
1001 size_t def_len;
1002
1003 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1;
1004 def = JLI_MemAlloc(def_len);
1005 JLI_Snprintf(def, def_len, format, option, arg);
1006 AddOption(def, NULL);
1007 }
1008
1009 static void
1010 SetMainModule(const char *s)
1011 {
1012 static const char format[] = "-Djdk.module.main=%s";
1013 char* slash = JLI_StrChr(s, '/');
1014 size_t s_len, def_len;
1015 char *def;
1016
1017 /* value may be <module> or <module>/<mainclass> */
1018 if (slash == NULL) {
1019 s_len = JLI_StrLen(s);
1020 } else {
1021 s_len = (size_t) (slash - s);
1022 }
1023 def_len = sizeof(format)
1024 - 2 /* strlen("%s") */
1025 + s_len;
1026 def = JLI_MemAlloc(def_len);
1027 JLI_Snprintf(def, def_len, format, s);
1028 AddOption(def, NULL);
1029 }
1030
1031 /*
1032 * The SelectVersion() routine ensures that an appropriate version of
1033 * the JRE is running. The specification for the appropriate version
1034 * is obtained from either the manifest of a jar file (preferred) or
1035 * from command line options.
1036 * The routine also parses splash screen command line options and
1037 * passes on their values in private environment variables.
1038 */
1039 static void
1040 SelectVersion(int argc, char **argv, char **main_class)
1041 {
1042 char *arg;
1043 char *operand;
1044 char *version = NULL;
1045 char *jre = NULL;
1046 int jarflag = 0;
1047 int headlessflag = 0;
1048 int restrict_search = -1; /* -1 implies not known */
1049 manifest_info info;
1050 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "=";
1051 char *splash_file_name = NULL;
1052 char *splash_jar_name = NULL;
1053 char *env_in;
1054 int res;
1055 jboolean has_arg;
1056
1057 /*
1058 * If the version has already been selected, set *main_class
1059 * with the value passed through the environment (if any) and
1060 * simply return.
1061 */
1062
1063 /*
1064 * This environmental variable can be set by mJRE capable JREs
1065 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been
1066 * stripped by those JREs. This environmental variable allows 1.9+
1067 * JREs to be started by these mJRE capable JREs.
1068 * Note that mJRE directives in the jar manifest file would have been
1069 * ignored for a JRE started by another JRE...
1070 * .. skipped for JRE 1.5 and beyond.
1071 * .. not even checked for pre 1.5.
1072 */
1073 if ((env_in = getenv(ENV_ENTRY)) != NULL) {
1074 if (*env_in != '\0')
1075 *main_class = JLI_StringDup(env_in);
1076 return;
1077 }
1078
1079 /*
1080 * Scan through the arguments for options relevant to multiple JRE
1081 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8.
1082 *
1083 * This capability is no longer available with JRE versions 1.9 and later.
1084 * These command line options are reported as errors.
1085 */
1086
1087 argc--;
1088 argv++;
1089 while ((arg = *argv) != 0 && *arg == '-') {
1090 has_arg = IsOptionWithArgument(argc, argv);
1091 if (JLI_StrCCmp(arg, "-version:") == 0) {
1092 JLI_ReportErrorMessage(SPC_ERROR1);
1093 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) {
1094 JLI_ReportErrorMessage(SPC_ERROR2);
1095 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) {
1096 JLI_ReportErrorMessage(SPC_ERROR2);
1097 } else {
1098 if (JLI_StrCmp(arg, "-jar") == 0)
1099 jarflag = 1;
1100 if (IsWhiteSpaceOption(arg)) {
1101 if (has_arg) {
1102 argc--;
1103 argv++;
1104 arg = *argv;
1105 }
1106 }
1107
1108 /*
1109 * Checking for headless toolkit option in the some way as AWT does:
1110 * "true" means true and any other value means false
1111 */
1112 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) {
1113 headlessflag = 1;
1114 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) {
1115 headlessflag = 0;
1116 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1117 splash_file_name = arg+8;
1118 }
1119 }
1120 argc--;
1121 argv++;
1122 }
1123 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */
1124 operand = NULL;
1125 } else {
1126 argc--;
1127 operand = *argv++;
1128 }
1129
1130 /*
1131 * If there is a jar file, read the manifest. If the jarfile can't be
1132 * read, the manifest can't be read from the jar file, or the manifest
1133 * is corrupt, issue the appropriate error messages and exit.
1134 *
1135 * Even if there isn't a jar file, construct a manifest_info structure
1136 * containing the command line information. It's a convenient way to carry
1137 * this data around.
1138 */
1139 if (jarflag && operand) {
1140 if ((res = JLI_ParseManifest(operand, &info)) != 0) {
1141 if (res == -1)
1142 JLI_ReportErrorMessage(JAR_ERROR2, operand);
1143 else
1144 JLI_ReportErrorMessage(JAR_ERROR3, operand);
1145 exit(1);
1146 }
1147
1148 /*
1149 * Command line splash screen option should have precedence
1150 * over the manifest, so the manifest data is used only if
1151 * splash_file_name has not been initialized above during command
1152 * line parsing
1153 */
1154 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) {
1155 splash_file_name = info.splashscreen_image_file_name;
1156 splash_jar_name = operand;
1157 }
1158 } else {
1159 info.manifest_version = NULL;
1160 info.main_class = NULL;
1161 info.jre_version = NULL;
1162 info.jre_restrict_search = 0;
1163 }
1164
1165 /*
1166 * Passing on splash screen info in environment variables
1167 */
1168 if (splash_file_name && !headlessflag) {
1169 splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1);
1170 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
1171 JLI_StrCat(splash_file_entry, splash_file_name);
1172 putenv(splash_file_entry);
1173 }
1174 if (splash_jar_name && !headlessflag) {
1175 splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1);
1176 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
1177 JLI_StrCat(splash_jar_entry, splash_jar_name);
1178 putenv(splash_jar_entry);
1179 }
1180
1181
1182 /*
1183 * "Valid" returns (other than unrecoverable errors) follow. Set
1184 * main_class as a side-effect of this routine.
1185 */
1186 if (info.main_class != NULL)
1187 *main_class = JLI_StringDup(info.main_class);
1188
1189 if (info.jre_version == NULL) {
1190 JLI_FreeManifest();
1191 return;
1192 }
1193
1194 }
1195
1196 /*
1197 * Test if the current argv is an option, i.e. with a leading `-`
1198 * and followed with an argument without a leading `-`.
1199 */
1200 static jboolean
1201 IsOptionWithArgument(int argc, char** argv) {
1202 char* option;
1203 char* arg;
1204
1205 if (argc <= 1)
1206 return JNI_FALSE;
1207
1208 option = *argv;
1209 arg = *(argv+1);
1210 return *option == '-' && *arg != '-';
1211 }
1212
1213 /*
1214 * Gets the option, and its argument if the option has an argument.
1215 * It will update *pargc, **pargv to the next option.
1216 */
1217 static int
1218 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) {
1219 int argc = *pargc;
1220 char** argv = *pargv;
1221 char* arg = *argv;
1222
1223 char* option = arg;
1224 char* value = NULL;
1225 char* equals = NULL;
1226 int kind = LAUNCHER_OPTION;
1227 jboolean has_arg = JNI_FALSE;
1228
1229 // check if this option may be a white-space option with an argument
1230 has_arg = IsOptionWithArgument(argc, argv);
1231
1232 argv++; --argc;
1233 if (IsLauncherOption(arg)) {
1234 if (has_arg) {
1235 value = *argv;
1236 argv++; --argc;
1237 }
1238 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION
1239 : LAUNCHER_OPTION_WITH_ARGUMENT;
1240 } else if (IsModuleOption(arg)) {
1241 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1242 if (has_arg) {
1243 value = *argv;
1244 argv++; --argc;
1245 }
1246
1247 /*
1248 * Support short form alias
1249 */
1250 if (JLI_StrCmp(arg, "-p") == 0) {
1251 option = "--module-path";
1252 }
1253
1254 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) {
1255 value = equals+1;
1256 if (JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1257 JLI_StrCCmp(arg, "--module=") == 0 ||
1258 JLI_StrCCmp(arg, "--class-path=") == 0||
1259 JLI_StrCCmp(arg, "--source=") == 0) {
1260 kind = LAUNCHER_OPTION_WITH_ARGUMENT;
1261 } else {
1262 kind = VM_LONG_OPTION;
1263 }
1264 }
1265
1266 *pargc = argc;
1267 *pargv = argv;
1268 *poption = option;
1269 *pvalue = value;
1270 return kind;
1271 }
1272
1273 /*
1274 * Parses command line arguments. Returns JNI_FALSE if launcher
1275 * should exit without starting vm, returns JNI_TRUE if vm needs
1276 * to be started to process given options. *pret (the launcher
1277 * process return value) is set to 0 for a normal exit.
1278 */
1279 static jboolean
1280 ParseArguments(int *pargc, char ***pargv,
1281 int *pmode, char **pwhat,
1282 int *pret, const char *jrepath)
1283 {
1284 int argc = *pargc;
1285 char **argv = *pargv;
1286 int mode = LM_UNKNOWN;
1287 char *arg;
1288
1289 *pret = 0;
1290
1291 while ((arg = *argv) != 0 && *arg == '-') {
1292 char *option = NULL;
1293 char *value = NULL;
1294 int kind = GetOpt(&argc, &argv, &option, &value);
1295 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0;
1296 jboolean has_arg_any_len = value != NULL;
1297
1298 /*
1299 * Option to set main entry point
1300 */
1301 if (JLI_StrCmp(arg, "-jar") == 0) {
1302 ARG_CHECK(argc, ARG_ERROR2, arg);
1303 mode = checkMode(mode, LM_JAR, arg);
1304 } else if (JLI_StrCmp(arg, "--module") == 0 ||
1305 JLI_StrCCmp(arg, "--module=") == 0 ||
1306 JLI_StrCmp(arg, "-m") == 0) {
1307 REPORT_ERROR (has_arg, ARG_ERROR5, arg);
1308 SetMainModule(value);
1309 mode = checkMode(mode, LM_MODULE, arg);
1310 if (has_arg) {
1311 *pwhat = value;
1312 break;
1313 }
1314 } else if (JLI_StrCmp(arg, "--source") == 0 ||
1315 JLI_StrCCmp(arg, "--source=") == 0) {
1316 REPORT_ERROR (has_arg, ARG_ERROR13, arg);
1317 mode = LM_SOURCE;
1318 if (has_arg) {
1319 const char *prop = "-Djdk.internal.javac.source=";
1320 size_t size = JLI_StrLen(prop) + JLI_StrLen(value) + 1;
1321 char *propValue = (char *)JLI_MemAlloc(size);
1322 JLI_Snprintf(propValue, size, "%s%s", prop, value);
1323 AddOption(propValue, NULL);
1324 }
1325 } else if (JLI_StrCmp(arg, "--class-path") == 0 ||
1326 JLI_StrCCmp(arg, "--class-path=") == 0 ||
1327 JLI_StrCmp(arg, "-classpath") == 0 ||
1328 JLI_StrCmp(arg, "-cp") == 0) {
1329 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg);
1330 SetClassPath(value);
1331 if (mode != LM_SOURCE) {
1332 mode = LM_CLASS;
1333 }
1334 } else if (JLI_StrCmp(arg, "--list-modules") == 0) {
1335 listModules = JNI_TRUE;
1336 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) {
1337 showResolvedModules = JNI_TRUE;
1338 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) {
1339 AddOption("-Djdk.module.validation=true", NULL);
1340 validateModules = JNI_TRUE;
1341 } else if (JLI_StrCmp(arg, "--describe-module") == 0 ||
1342 JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1343 JLI_StrCmp(arg, "-d") == 0) {
1344 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg);
1345 describeModule = value;
1346 /*
1347 * Parse white-space options
1348 */
1349 } else if (has_arg) {
1350 if (kind == VM_LONG_OPTION) {
1351 AddOption(option, NULL);
1352 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) {
1353 AddLongFormOption(option, value);
1354 }
1355 /*
1356 * Error missing argument
1357 */
1358 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 ||
1359 JLI_StrCmp(arg, "-p") == 0 ||
1360 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) {
1361 REPORT_ERROR (has_arg, ARG_ERROR4, arg);
1362
1363 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) {
1364 REPORT_ERROR (has_arg, ARG_ERROR6, arg);
1365 /*
1366 * The following cases will cause the argument parsing to stop
1367 */
1368 } else if (JLI_StrCmp(arg, "-help") == 0 ||
1369 JLI_StrCmp(arg, "-h") == 0 ||
1370 JLI_StrCmp(arg, "-?") == 0) {
1371 printUsage = JNI_TRUE;
1372 return JNI_TRUE;
1373 } else if (JLI_StrCmp(arg, "--help") == 0) {
1374 printUsage = JNI_TRUE;
1375 printTo = USE_STDOUT;
1376 return JNI_TRUE;
1377 } else if (JLI_StrCmp(arg, "-version") == 0) {
1378 printVersion = JNI_TRUE;
1379 return JNI_TRUE;
1380 } else if (JLI_StrCmp(arg, "--version") == 0) {
1381 printVersion = JNI_TRUE;
1382 printTo = USE_STDOUT;
1383 return JNI_TRUE;
1384 } else if (JLI_StrCmp(arg, "-showversion") == 0) {
1385 showVersion = JNI_TRUE;
1386 } else if (JLI_StrCmp(arg, "--show-version") == 0) {
1387 showVersion = JNI_TRUE;
1388 printTo = USE_STDOUT;
1389 } else if (JLI_StrCmp(arg, "--dry-run") == 0) {
1390 dryRun = JNI_TRUE;
1391 } else if (JLI_StrCmp(arg, "-X") == 0) {
1392 printXUsage = JNI_TRUE;
1393 return JNI_TRUE;
1394 } else if (JLI_StrCmp(arg, "--help-extra") == 0) {
1395 printXUsage = JNI_TRUE;
1396 printTo = USE_STDOUT;
1397 return JNI_TRUE;
1398 /*
1399 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT.
1400 * In the latter case, any SUBOPT value not recognized will default to "all"
1401 */
1402 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 ||
1403 JLI_StrCCmp(arg, "-XshowSettings:") == 0) {
1404 showSettings = arg;
1405 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) {
1406 AddOption("-Dsun.java.launcher.diag=true", NULL);
1407 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) {
1408 AddOption("-Djdk.module.showModuleResolution=true", NULL);
1409 /*
1410 * The following case provide backward compatibility with old-style
1411 * command line options.
1412 */
1413 } else if (JLI_StrCmp(arg, "-fullversion") == 0) {
1414 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion());
1415 return JNI_FALSE;
1416 } else if (JLI_StrCmp(arg, "--full-version") == 0) {
1417 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion());
1418 return JNI_FALSE;
1419 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) {
1420 AddOption("-verbose:gc", NULL);
1421 } else if (JLI_StrCmp(arg, "-t") == 0) {
1422 AddOption("-Xt", NULL);
1423 } else if (JLI_StrCmp(arg, "-tm") == 0) {
1424 AddOption("-Xtm", NULL);
1425 } else if (JLI_StrCmp(arg, "-debug") == 0) {
1426 AddOption("-Xdebug", NULL);
1427 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) {
1428 AddOption("-Xnoclassgc", NULL);
1429 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) {
1430 JLI_ReportErrorMessage(ARG_DEPRECATED, "-Xfuture");
1431 AddOption("-Xverify:all", NULL);
1432 } else if (JLI_StrCmp(arg, "-verify") == 0) {
1433 AddOption("-Xverify:all", NULL);
1434 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) {
1435 AddOption("-Xverify:remote", NULL);
1436 } else if (JLI_StrCmp(arg, "-noverify") == 0) {
1437 /*
1438 * Note that no 'deprecated' message is needed here because the VM
1439 * issues 'deprecated' messages for -noverify and -Xverify:none.
1440 */
1441 AddOption("-Xverify:none", NULL);
1442 } else if (JLI_StrCCmp(arg, "-ss") == 0 ||
1443 JLI_StrCCmp(arg, "-oss") == 0 ||
1444 JLI_StrCCmp(arg, "-ms") == 0 ||
1445 JLI_StrCCmp(arg, "-mx") == 0) {
1446 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6);
1447 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */
1448 AddOption(tmp, NULL);
1449 } else if (JLI_StrCmp(arg, "-checksource") == 0 ||
1450 JLI_StrCmp(arg, "-cs") == 0 ||
1451 JLI_StrCmp(arg, "-noasyncgc") == 0) {
1452 /* No longer supported */
1453 JLI_ReportErrorMessage(ARG_WARN, arg);
1454 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1455 ; /* Ignore machine independent options already handled */
1456 } else if (ProcessPlatformOption(arg)) {
1457 ; /* Processing of platform dependent options */
1458 } else {
1459 /* java.class.path set on the command line */
1460 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) {
1461 _have_classpath = JNI_TRUE;
1462 }
1463 AddOption(arg, NULL);
1464 }
1465 }
1466
1467 if (*pwhat == NULL && --argc >= 0) {
1468 *pwhat = *argv++;
1469 }
1470
1471 if (*pwhat == NULL) {
1472 /* LM_UNKNOWN okay for options that exit */
1473 if (!listModules && !describeModule && !validateModules) {
1474 *pret = 1;
1475 }
1476 } else if (mode == LM_UNKNOWN) {
1477 /* default to LM_CLASS if -m, -jar and -cp options are
1478 * not specified */
1479 if (!_have_classpath) {
1480 SetClassPath(".");
1481 }
1482 mode = IsSourceFile(arg) ? LM_SOURCE : LM_CLASS;
1483 } else if (mode == LM_CLASS && IsSourceFile(arg)) {
1484 /* override LM_CLASS mode if given a source file */
1485 mode = LM_SOURCE;
1486 }
1487
1488 if (mode == LM_SOURCE) {
1489 AddOption("--add-modules=ALL-DEFAULT", NULL);
1490 *pwhat = SOURCE_LAUNCHER_MAIN_ENTRY;
1491 // adjust (argc, argv) so that the name of the source file
1492 // is included in the args passed to the source launcher
1493 // main entry class
1494 *pargc = argc + 1;
1495 *pargv = argv - 1;
1496 } else {
1497 if (argc >= 0) {
1498 *pargc = argc;
1499 *pargv = argv;
1500 }
1501 }
1502
1503 *pmode = mode;
1504
1505 return JNI_TRUE;
1506 }
1507
1508 /*
1509 * Initializes the Java Virtual Machine. Also frees options array when
1510 * finished.
1511 */
1512 static jboolean
1513 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1514 {
1515 JavaVMInitArgs args;
1516 jint r;
1517
1518 memset(&args, 0, sizeof(args));
1519 args.version = JNI_VERSION_1_2;
1520 args.nOptions = numOptions;
1521 args.options = options;
1522 args.ignoreUnrecognized = JNI_FALSE;
1523
1524 if (JLI_IsTraceLauncher()) {
1525 int i = 0;
1526 printf("JavaVM args:\n ");
1527 printf("version 0x%08lx, ", (long)args.version);
1528 printf("ignoreUnrecognized is %s, ",
1529 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1530 printf("nOptions is %ld\n", (long)args.nOptions);
1531 for (i = 0; i < numOptions; i++)
1532 printf(" option[%2d] = '%s'\n",
1533 i, args.options[i].optionString);
1534 }
1535
1536 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1537 JLI_MemFree(options);
1538 return r == JNI_OK;
1539 }
1540
1541 static jclass helperClass = NULL;
1542
1543 jclass
1544 GetLauncherHelperClass(JNIEnv *env)
1545 {
1546 if (helperClass == NULL) {
1547 NULL_CHECK0(helperClass = FindBootStrapClass(env,
1548 "sun/launcher/LauncherHelper"));
1549 }
1550 return helperClass;
1551 }
1552
1553 static jmethodID makePlatformStringMID = NULL;
1554 /*
1555 * Returns a new Java string object for the specified platform string.
1556 */
1557 static jstring
1558 NewPlatformString(JNIEnv *env, char *s)
1559 {
1560 int len = (int)JLI_StrLen(s);
1561 jbyteArray ary;
1562 jclass cls = GetLauncherHelperClass(env);
1563 NULL_CHECK0(cls);
1564 if (s == NULL)
1565 return 0;
1566
1567 ary = (*env)->NewByteArray(env, len);
1568 if (ary != 0) {
1569 jstring str = 0;
1570 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1571 if (!(*env)->ExceptionOccurred(env)) {
1572 if (makePlatformStringMID == NULL) {
1573 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env,
1574 cls, "makePlatformString", "(Z[B)Ljava/lang/String;"));
1575 }
1576 str = (*env)->CallStaticObjectMethod(env, cls,
1577 makePlatformStringMID, USE_STDERR, ary);
1578 CHECK_EXCEPTION_RETURN_VALUE(0);
1579 (*env)->DeleteLocalRef(env, ary);
1580 return str;
1581 }
1582 }
1583 return 0;
1584 }
1585
1586 /*
1587 * Returns a new array of Java string objects for the specified
1588 * array of platform strings.
1589 */
1590 jobjectArray
1591 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1592 {
1593 jarray cls;
1594 jarray ary;
1595 int i;
1596
1597 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String"));
1598 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1599 CHECK_EXCEPTION_RETURN_VALUE(0);
1600 for (i = 0; i < strc; i++) {
1601 jstring str = NewPlatformString(env, *strv++);
1602 NULL_CHECK0(str);
1603 (*env)->SetObjectArrayElement(env, ary, i, str);
1604 (*env)->DeleteLocalRef(env, str);
1605 }
1606 return ary;
1607 }
1608
1609 /*
1610 * Loads a class and verifies that the main class is present and it is ok to
1611 * call it for more details refer to the java implementation.
1612 */
1613 static jclass
1614 LoadMainClass(JNIEnv *env, int mode, char *name)
1615 {
1616 jmethodID mid;
1617 jstring str;
1618 jobject result;
1619 jlong start, end;
1620 jclass cls = GetLauncherHelperClass(env);
1621 NULL_CHECK0(cls);
1622 if (JLI_IsTraceLauncher()) {
1623 start = CounterGet();
1624 }
1625 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1626 "checkAndLoadMain",
1627 "(ZILjava/lang/String;)Ljava/lang/Class;"));
1628
1629 NULL_CHECK0(str = NewPlatformString(env, name));
1630 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid,
1631 USE_STDERR, mode, str));
1632
1633 if (JLI_IsTraceLauncher()) {
1634 end = CounterGet();
1635 printf("%ld micro seconds to load main class\n",
1636 (long)(jint)Counter2Micros(end-start));
1637 printf("----%s----\n", JLDEBUG_ENV_ENTRY);
1638 }
1639
1640 return (jclass)result;
1641 }
1642
1643 static jclass
1644 GetApplicationClass(JNIEnv *env)
1645 {
1646 jmethodID mid;
1647 jclass appClass;
1648 jclass cls = GetLauncherHelperClass(env);
1649 NULL_CHECK0(cls);
1650 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1651 "getApplicationClass",
1652 "()Ljava/lang/Class;"));
1653
1654 appClass = (*env)->CallStaticObjectMethod(env, cls, mid);
1655 CHECK_EXCEPTION_RETURN_VALUE(0);
1656 return appClass;
1657 }
1658
1659 static char* expandWildcardOnLongOpt(char* arg) {
1660 char *p, *value;
1661 size_t optLen, valueLen;
1662 p = JLI_StrChr(arg, '=');
1663
1664 if (p == NULL || p[1] == '\0') {
1665 JLI_ReportErrorMessage(ARG_ERROR1, arg);
1666 exit(1);
1667 }
1668 p++;
1669 value = (char *) JLI_WildcardExpandClasspath(p);
1670 if (p == value) {
1671 // no wildcard
1672 return arg;
1673 }
1674
1675 optLen = p - arg;
1676 valueLen = JLI_StrLen(value);
1677 p = JLI_MemAlloc(optLen + valueLen + 1);
1678 memcpy(p, arg, optLen);
1679 memcpy(p + optLen, value, valueLen);
1680 p[optLen + valueLen] = '\0';
1681 return p;
1682 }
1683
1684 /*
1685 * For tools, convert command line args thus:
1686 * javac -cp foo:foo/"*" -J-ms32m ...
1687 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1688 *
1689 * Takes 4 parameters, and returns the populated arguments
1690 */
1691 static void
1692 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv)
1693 {
1694 int argc = *pargc;
1695 char **argv = *pargv;
1696 int nargc = argc + jargc;
1697 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1698 int i;
1699
1700 *pargc = nargc;
1701 *pargv = nargv;
1702
1703 /* Copy the VM arguments (i.e. prefixed with -J) */
1704 for (i = 0; i < jargc; i++) {
1705 const char *arg = jargv[i];
1706 if (arg[0] == '-' && arg[1] == 'J') {
1707 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2);
1708 }
1709 }
1710
1711 for (i = 0; i < argc; i++) {
1712 char *arg = argv[i];
1713 if (arg[0] == '-' && arg[1] == 'J') {
1714 if (arg[2] == '\0') {
1715 JLI_ReportErrorMessage(ARG_ERROR3);
1716 exit(1);
1717 }
1718 *nargv++ = arg + 2;
1719 }
1720 }
1721
1722 /* Copy the rest of the arguments */
1723 for (i = 0; i < jargc ; i++) {
1724 const char *arg = jargv[i];
1725 if (arg[0] != '-' || arg[1] != 'J') {
1726 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg);
1727 }
1728 }
1729 for (i = 0; i < argc; i++) {
1730 char *arg = argv[i];
1731 if (arg[0] == '-') {
1732 if (arg[1] == 'J')
1733 continue;
1734 if (IsWildCardEnabled()) {
1735 if (IsClassPathOption(arg) && i < argc - 1) {
1736 *nargv++ = arg;
1737 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1738 i++;
1739 continue;
1740 }
1741 if (JLI_StrCCmp(arg, "--class-path=") == 0) {
1742 *nargv++ = expandWildcardOnLongOpt(arg);
1743 continue;
1744 }
1745 }
1746 }
1747 *nargv++ = arg;
1748 }
1749 *nargv = 0;
1750 }
1751
1752 /*
1753 * For our tools, we try to add 3 VM options:
1754 * -Denv.class.path=<envcp>
1755 * -Dapplication.home=<apphome>
1756 * -Djava.class.path=<appcp>
1757 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1758 * tells javac where to find binary classes through this environment
1759 * variable. Notice that users will be able to compile against our
1760 * tools classes (sun.tools.javac.Main) only if they explicitly add
1761 * tools.jar to CLASSPATH.
1762 * <apphome> is the directory where the application is installed.
1763 * <appcp> is the classpath to where our apps' classfiles are.
1764 */
1765 static jboolean
1766 AddApplicationOptions(int cpathc, const char **cpathv)
1767 {
1768 char *envcp, *appcp, *apphome;
1769 char home[MAXPATHLEN]; /* application home */
1770 char separator[] = { PATH_SEPARATOR, '\0' };
1771 int size, i;
1772
1773 {
1774 const char *s = getenv("CLASSPATH");
1775 if (s) {
1776 s = (char *) JLI_WildcardExpandClasspath(s);
1777 /* 40 for -Denv.class.path= */
1778 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow
1779 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40);
1780 sprintf(envcp, "-Denv.class.path=%s", s);
1781 AddOption(envcp, NULL);
1782 }
1783 }
1784 }
1785
1786 if (!GetApplicationHome(home, sizeof(home))) {
1787 JLI_ReportErrorMessage(CFG_ERROR5);
1788 return JNI_FALSE;
1789 }
1790
1791 /* 40 for '-Dapplication.home=' */
1792 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40);
1793 sprintf(apphome, "-Dapplication.home=%s", home);
1794 AddOption(apphome, NULL);
1795
1796 /* How big is the application's classpath? */
1797 if (cpathc > 0) {
1798 size = 40; /* 40: "-Djava.class.path=" */
1799 for (i = 0; i < cpathc; i++) {
1800 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */
1801 }
1802 appcp = (char *)JLI_MemAlloc(size + 1);
1803 JLI_StrCpy(appcp, "-Djava.class.path=");
1804 for (i = 0; i < cpathc; i++) {
1805 JLI_StrCat(appcp, home); /* c:\program files\myapp */
1806 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */
1807 JLI_StrCat(appcp, separator); /* ; */
1808 }
1809 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */
1810 AddOption(appcp, NULL);
1811 }
1812 return JNI_TRUE;
1813 }
1814
1815 /*
1816 * inject the -Dsun.java.command pseudo property into the args structure
1817 * this pseudo property is used in the HotSpot VM to expose the
1818 * Java class name and arguments to the main method to the VM. The
1819 * HotSpot VM uses this pseudo property to store the Java class name
1820 * (or jar file name) and the arguments to the class's main method
1821 * to the instrumentation memory region. The sun.java.command pseudo
1822 * property is not exported by HotSpot to the Java layer.
1823 */
1824 void
1825 SetJavaCommandLineProp(char *what, int argc, char **argv)
1826 {
1827
1828 int i = 0;
1829 size_t len = 0;
1830 char* javaCommand = NULL;
1831 char* dashDstr = "-Dsun.java.command=";
1832
1833 if (what == NULL) {
1834 /* unexpected, one of these should be set. just return without
1835 * setting the property
1836 */
1837 return;
1838 }
1839
1840 /* determine the amount of memory to allocate assuming
1841 * the individual components will be space separated
1842 */
1843 len = JLI_StrLen(what);
1844 for (i = 0; i < argc; i++) {
1845 len += JLI_StrLen(argv[i]) + 1;
1846 }
1847
1848 /* allocate the memory */
1849 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1);
1850
1851 /* build the -D string */
1852 *javaCommand = '\0';
1853 JLI_StrCat(javaCommand, dashDstr);
1854 JLI_StrCat(javaCommand, what);
1855
1856 for (i = 0; i < argc; i++) {
1857 /* the components of the string are space separated. In
1858 * the case of embedded white space, the relationship of
1859 * the white space separated components to their true
1860 * positional arguments will be ambiguous. This issue may
1861 * be addressed in a future release.
1862 */
1863 JLI_StrCat(javaCommand, " ");
1864 JLI_StrCat(javaCommand, argv[i]);
1865 }
1866
1867 AddOption(javaCommand, NULL);
1868 }
1869
1870 /*
1871 * JVM would like to know if it's created by a standard Sun launcher, or by
1872 * user native application, the following property indicates the former.
1873 */
1874 void
1875 SetJavaLauncherProp() {
1876 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL);
1877 }
1878
1879 /*
1880 * Prints the version information from the java.version and other properties.
1881 */
1882 static void
1883 PrintJavaVersion(JNIEnv *env, jboolean extraLF)
1884 {
1885 jclass ver;
1886 jmethodID print;
1887
1888 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps"));
1889 NULL_CHECK(print = (*env)->GetStaticMethodID(env,
1890 ver,
1891 (extraLF == JNI_TRUE) ? "println" : "print",
1892 "(Z)V"
1893 )
1894 );
1895
1896 (*env)->CallStaticVoidMethod(env, ver, print, printTo);
1897 }
1898
1899 /*
1900 * Prints all the Java settings, see the java implementation for more details.
1901 */
1902 static void
1903 ShowSettings(JNIEnv *env, char *optString)
1904 {
1905 jmethodID showSettingsID;
1906 jstring joptString;
1907 jclass cls = GetLauncherHelperClass(env);
1908 NULL_CHECK(cls);
1909 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls,
1910 "showSettings", "(ZLjava/lang/String;JJJ)V"));
1911 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1912 (*env)->CallStaticVoidMethod(env, cls, showSettingsID,
1913 USE_STDERR,
1914 joptString,
1915 (jlong)initialHeapSize,
1916 (jlong)maxHeapSize,
1917 (jlong)threadStackSize);
1918 }
1919
1920 /**
1921 * Show resolved modules
1922 */
1923 static void
1924 ShowResolvedModules(JNIEnv *env)
1925 {
1926 jmethodID showResolvedModulesID;
1927 jclass cls = GetLauncherHelperClass(env);
1928 NULL_CHECK(cls);
1929 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls,
1930 "showResolvedModules", "()V"));
1931 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID);
1932 }
1933
1934 /**
1935 * List observable modules
1936 */
1937 static void
1938 ListModules(JNIEnv *env)
1939 {
1940 jmethodID listModulesID;
1941 jclass cls = GetLauncherHelperClass(env);
1942 NULL_CHECK(cls);
1943 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls,
1944 "listModules", "()V"));
1945 (*env)->CallStaticVoidMethod(env, cls, listModulesID);
1946 }
1947
1948 /**
1949 * Describe a module
1950 */
1951 static void
1952 DescribeModule(JNIEnv *env, char *optString)
1953 {
1954 jmethodID describeModuleID;
1955 jstring joptString = NULL;
1956 jclass cls = GetLauncherHelperClass(env);
1957 NULL_CHECK(cls);
1958 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls,
1959 "describeModule", "(Ljava/lang/String;)V"));
1960 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1961 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString);
1962 }
1963
1964 /*
1965 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java
1966 */
1967 static void
1968 PrintUsage(JNIEnv* env, jboolean doXUsage)
1969 {
1970 jmethodID initHelp, vmSelect, vmSynonym, printHelp, printXUsageMessage;
1971 jstring jprogname, vm1, vm2;
1972 int i;
1973 jclass cls = GetLauncherHelperClass(env);
1974 NULL_CHECK(cls);
1975 if (doXUsage) {
1976 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls,
1977 "printXUsageMessage", "(Z)V"));
1978 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo);
1979 } else {
1980 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls,
1981 "initHelpMessage", "(Ljava/lang/String;)V"));
1982
1983 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage",
1984 "(Ljava/lang/String;Ljava/lang/String;)V"));
1985
1986 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls,
1987 "appendVmSynonymMessage",
1988 "(Ljava/lang/String;Ljava/lang/String;)V"));
1989
1990 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls,
1991 "printHelpMessage", "(Z)V"));
1992
1993 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name));
1994
1995 /* Initialize the usage message with the usual preamble */
1996 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname);
1997 CHECK_EXCEPTION_RETURN();
1998
1999
2000 /* Assemble the other variant part of the usage */
2001 for (i=1; i<knownVMsCount; i++) {
2002 if (knownVMs[i].flag == VM_KNOWN) {
2003 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
2004 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1));
2005 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
2006 CHECK_EXCEPTION_RETURN();
2007 }
2008 }
2009 for (i=1; i<knownVMsCount; i++) {
2010 if (knownVMs[i].flag == VM_ALIASED_TO) {
2011 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
2012 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1));
2013 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2);
2014 CHECK_EXCEPTION_RETURN();
2015 }
2016 }
2017
2018 /* Complete the usage message and print to stderr*/
2019 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo);
2020 }
2021 return;
2022 }
2023
2024 /*
2025 * Read the jvm.cfg file and fill the knownJVMs[] array.
2026 *
2027 * The functionality of the jvm.cfg file is subject to change without
2028 * notice and the mechanism will be removed in the future.
2029 *
2030 * The lexical structure of the jvm.cfg file is as follows:
2031 *
2032 * jvmcfg := { vmLine }
2033 * vmLine := knownLine
2034 * | aliasLine
2035 * | warnLine
2036 * | ignoreLine
2037 * | errorLine
2038 * | predicateLine
2039 * | commentLine
2040 * knownLine := flag "KNOWN" EOL
2041 * warnLine := flag "WARN" EOL
2042 * ignoreLine := flag "IGNORE" EOL
2043 * errorLine := flag "ERROR" EOL
2044 * aliasLine := flag "ALIASED_TO" flag EOL
2045 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
2046 * commentLine := "#" text EOL
2047 * flag := "-" identifier
2048 *
2049 * The semantics are that when someone specifies a flag on the command line:
2050 * - if the flag appears on a knownLine, then the identifier is used as
2051 * the name of the directory holding the JVM library (the name of the JVM).
2052 * - if the flag appears as the first flag on an aliasLine, the identifier
2053 * of the second flag is used as the name of the JVM.
2054 * - if the flag appears on a warnLine, the identifier is used as the
2055 * name of the JVM, but a warning is generated.
2056 * - if the flag appears on an ignoreLine, the identifier is recognized as the
2057 * name of a JVM, but the identifier is ignored and the default vm used
2058 * - if the flag appears on an errorLine, an error is generated.
2059 * - if the flag appears as the first flag on a predicateLine, and
2060 * the machine on which you are running passes the predicate indicated,
2061 * then the identifier of the second flag is used as the name of the JVM,
2062 * otherwise the identifier of the first flag is used as the name of the JVM.
2063 * If no flag is given on the command line, the first vmLine of the jvm.cfg
2064 * file determines the name of the JVM.
2065 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
2066 * since they only make sense if someone hasn't specified the name of the
2067 * JVM on the command line.
2068 *
2069 * The intent of the jvm.cfg file is to allow several JVM libraries to
2070 * be installed in different subdirectories of a single JRE installation,
2071 * for space-savings and convenience in testing.
2072 * The intent is explicitly not to provide a full aliasing or predicate
2073 * mechanism.
2074 */
2075 jint
2076 ReadKnownVMs(const char *jvmCfgName, jboolean speculative)
2077 {
2078 FILE *jvmCfg;
2079 char line[MAXPATHLEN+20];
2080 int cnt = 0;
2081 int lineno = 0;
2082 jlong start, end;
2083 int vmType;
2084 char *tmpPtr;
2085 char *altVMName = NULL;
2086 char *serverClassVMName = NULL;
2087 static char *whiteSpace = " \t";
2088 if (JLI_IsTraceLauncher()) {
2089 start = CounterGet();
2090 }
2091
2092 jvmCfg = fopen(jvmCfgName, "r");
2093 if (jvmCfg == NULL) {
2094 if (!speculative) {
2095 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName);
2096 exit(1);
2097 } else {
2098 return -1;
2099 }
2100 }
2101 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
2102 vmType = VM_UNKNOWN;
2103 lineno++;
2104 if (line[0] == '#')
2105 continue;
2106 if (line[0] != '-') {
2107 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName);
2108 }
2109 if (cnt >= knownVMsLimit) {
2110 GrowKnownVMs(cnt);
2111 }
2112 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */
2113 tmpPtr = line + JLI_StrCSpn(line, whiteSpace);
2114 if (*tmpPtr == 0) {
2115 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2116 } else {
2117 /* Null-terminate this string for JLI_StringDup below */
2118 *tmpPtr++ = 0;
2119 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2120 if (*tmpPtr == 0) {
2121 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2122 } else {
2123 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) {
2124 vmType = VM_KNOWN;
2125 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) {
2126 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2127 if (*tmpPtr != 0) {
2128 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2129 }
2130 if (*tmpPtr == 0) {
2131 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2132 } else {
2133 /* Null terminate altVMName */
2134 altVMName = tmpPtr;
2135 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2136 *tmpPtr = 0;
2137 vmType = VM_ALIASED_TO;
2138 }
2139 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) {
2140 vmType = VM_WARN;
2141 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) {
2142 vmType = VM_IGNORE;
2143 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) {
2144 vmType = VM_ERROR;
2145 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) {
2146 /* ignored */
2147 } else {
2148 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]);
2149 vmType = VM_KNOWN;
2150 }
2151 }
2152 }
2153
2154 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line);
2155 if (vmType != VM_UNKNOWN) {
2156 knownVMs[cnt].name = JLI_StringDup(line);
2157 knownVMs[cnt].flag = vmType;
2158 switch (vmType) {
2159 default:
2160 break;
2161 case VM_ALIASED_TO:
2162 knownVMs[cnt].alias = JLI_StringDup(altVMName);
2163 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n",
2164 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
2165 break;
2166 }
2167 cnt++;
2168 }
2169 }
2170 fclose(jvmCfg);
2171 knownVMsCount = cnt;
2172
2173 if (JLI_IsTraceLauncher()) {
2174 end = CounterGet();
2175 printf("%ld micro seconds to parse jvm.cfg\n",
2176 (long)(jint)Counter2Micros(end-start));
2177 }
2178
2179 return cnt;
2180 }
2181
2182
2183 static void
2184 GrowKnownVMs(int minimum)
2185 {
2186 struct vmdesc* newKnownVMs;
2187 int newMax;
2188
2189 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
2190 if (newMax <= minimum) {
2191 newMax = minimum;
2192 }
2193 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
2194 if (knownVMs != NULL) {
2195 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
2196 }
2197 JLI_MemFree(knownVMs);
2198 knownVMs = newKnownVMs;
2199 knownVMsLimit = newMax;
2200 }
2201
2202
2203 /* Returns index of VM or -1 if not found */
2204 static int
2205 KnownVMIndex(const char* name)
2206 {
2207 int i;
2208 if (JLI_StrCCmp(name, "-J") == 0) name += 2;
2209 for (i = 0; i < knownVMsCount; i++) {
2210 if (!JLI_StrCmp(name, knownVMs[i].name)) {
2211 return i;
2212 }
2213 }
2214 return -1;
2215 }
2216
2217 static void
2218 FreeKnownVMs()
2219 {
2220 int i;
2221 for (i = 0; i < knownVMsCount; i++) {
2222 JLI_MemFree(knownVMs[i].name);
2223 knownVMs[i].name = NULL;
2224 }
2225 JLI_MemFree(knownVMs);
2226 }
2227
2228 /*
2229 * Displays the splash screen according to the jar file name
2230 * and image file names stored in environment variables
2231 */
2232 void
2233 ShowSplashScreen()
2234 {
2235 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
2236 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
2237 int data_size;
2238 void *image_data = NULL;
2239 float scale_factor = 1;
2240 char *scaled_splash_name = NULL;
2241 jboolean isImageScaled = JNI_FALSE;
2242 size_t maxScaledImgNameLength = 0;
2243 if (file_name == NULL){
2244 return;
2245 }
2246
2247 if (!DoSplashInit()) {
2248 goto exit;
2249 }
2250
2251 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name);
2252
2253 scaled_splash_name = JLI_MemAlloc(
2254 maxScaledImgNameLength * sizeof(char));
2255 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name,
2256 &scale_factor,
2257 scaled_splash_name, maxScaledImgNameLength);
2258 if (jar_name) {
2259
2260 if (isImageScaled) {
2261 image_data = JLI_JarUnpackFile(
2262 jar_name, scaled_splash_name, &data_size);
2263 }
2264
2265 if (!image_data) {
2266 scale_factor = 1;
2267 image_data = JLI_JarUnpackFile(
2268 jar_name, file_name, &data_size);
2269 }
2270 if (image_data) {
2271 DoSplashSetScaleFactor(scale_factor);
2272 DoSplashLoadMemory(image_data, data_size);
2273 JLI_MemFree(image_data);
2274 } else {
2275 DoSplashClose();
2276 }
2277 } else {
2278 if (isImageScaled) {
2279 DoSplashSetScaleFactor(scale_factor);
2280 DoSplashLoadFile(scaled_splash_name);
2281 } else {
2282 DoSplashLoadFile(file_name);
2283 }
2284 }
2285 JLI_MemFree(scaled_splash_name);
2286
2287 DoSplashSetFileJarName(file_name, jar_name);
2288
2289 exit:
2290 /*
2291 * Done with all command line processing and potential re-execs so
2292 * clean up the environment.
2293 */
2294 (void)UnsetEnv(ENV_ENTRY);
2295 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
2296 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
2297
2298 JLI_MemFree(splash_jar_entry);
2299 JLI_MemFree(splash_file_entry);
2300
2301 }
2302
2303 const char*
2304 GetFullVersion()
2305 {
2306 return _fVersion;
2307 }
2308
2309 const char*
2310 GetProgramName()
2311 {
2312 return _program_name;
2313 }
2314
2315 const char*
2316 GetLauncherName()
2317 {
2318 return _launcher_name;
2319 }
2320
2321 jboolean
2322 IsJavaArgs()
2323 {
2324 return _is_java_args;
2325 }
2326
2327 static jboolean
2328 IsWildCardEnabled()
2329 {
2330 return _wc_enabled;
2331 }
2332
2333 int
2334 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize,
2335 int argc, char **argv,
2336 int mode, char *what, int ret)
2337 {
2338 if (threadStackSize == 0) {
2339 /*
2340 * If the user hasn't specified a non-zero stack size ask the JVM for its default.
2341 * A returned 0 means 'use the system default' for a platform, e.g., Windows.
2342 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
2343 * return its default stack size through the init args structure.
2344 */
2345 struct JDK1_1InitArgs args1_1;
2346 memset((void*)&args1_1, 0, sizeof(args1_1));
2347 args1_1.version = JNI_VERSION_1_1;
2348 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
2349 if (args1_1.javaStackSize > 0) {
2350 threadStackSize = args1_1.javaStackSize;
2351 }
2352 }
2353
2354 { /* Create a new thread to create JVM and invoke main method */
2355 JavaMainArgs args;
2356 int rslt;
2357
2358 args.argc = argc;
2359 args.argv = argv;
2360 args.mode = mode;
2361 args.what = what;
2362 args.ifn = *ifn;
2363
2364 rslt = CallJavaMainInNewThread(threadStackSize, (void*)&args);
2365 /* If the caller has deemed there is an error we
2366 * simply return that, otherwise we return the value of
2367 * the callee
2368 */
2369 return (ret != 0) ? ret : rslt;
2370 }
2371 }
2372
2373 static void
2374 DumpState()
2375 {
2376 if (!JLI_IsTraceLauncher()) return ;
2377 printf("Launcher state:\n");
2378 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex());
2379 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off");
2380 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off");
2381 printf("\tprogram name:%s\n", GetProgramName());
2382 printf("\tlauncher name:%s\n", GetLauncherName());
2383 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off");
2384 printf("\tfullversion:%s\n", GetFullVersion());
2385 }
2386
2387 /*
2388 * A utility procedure to always print to stderr
2389 */
2390 JNIEXPORT void JNICALL
2391 JLI_ReportMessage(const char* fmt, ...)
2392 {
2393 va_list vl;
2394 va_start(vl, fmt);
2395 vfprintf(stderr, fmt, vl);
2396 fprintf(stderr, "\n");
2397 va_end(vl);
2398 }
2399
2400 /*
2401 * A utility procedure to always print to stdout
2402 */
2403 void
2404 JLI_ShowMessage(const char* fmt, ...)
2405 {
2406 va_list vl;
2407 va_start(vl, fmt);
2408 vfprintf(stdout, fmt, vl);
2409 fprintf(stdout, "\n");
2410 va_end(vl);
2411 }