1 /*
2 * Copyright (c) 1995, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /*
27 * Shared source for 'java' command line tool.
28 *
29 * If JAVA_ARGS is defined, then acts as a launcher for applications. For
30 * instance, the JDK command line tools such as javac and javadoc (see
31 * makefiles for more details) are built with this program. Any arguments
32 * prefixed with '-J' will be passed directly to the 'java' command.
33 */
34
35 /*
36 * One job of the launcher is to remove command line options which the
37 * vm does not understand and will not process. These options include
38 * options which select which style of vm is run (e.g. -client and
39 * -server) as well as options which select the data model to use.
40 * Additionally, for tools which invoke an underlying vm "-J-foo"
41 * options are turned into "-foo" options to the vm. This option
42 * filtering is handled in a number of places in the launcher, some of
43 * it in machine-dependent code. In this file, the function
44 * CheckJvmType removes vm style options and TranslateApplicationArgs
45 * removes "-J" prefixes. The CreateExecutionEnvironment function processes
46 * and removes -d<n> options. On unix, there is a possibility that the running
47 * data model may not match to the desired data model, in this case an exec is
48 * required to start the desired model. If the data models match, then
49 * ParseArguments will remove the -d<n> flags. If the data models do not match
50 * the CreateExecutionEnviroment will remove the -d<n> flags.
51 */
52
53
54 #include "java.h"
55
56 /*
57 * A NOTE TO DEVELOPERS: For performance reasons it is important that
58 * the program image remain relatively small until after SelectVersion
59 * CreateExecutionEnvironment have finished their possibly recursive
60 * processing. Watch everything, but resist all temptations to use Java
61 * interfaces.
62 */
63
64 #define USE_STDERR JNI_TRUE /* we usually print to stderr */
65 #define USE_STDOUT JNI_FALSE
66
67 static jboolean printVersion = JNI_FALSE; /* print and exit */
68 static jboolean showVersion = JNI_FALSE; /* print but continue */
69 static jboolean printUsage = JNI_FALSE; /* print and exit*/
70 static jboolean printTo = USE_STDERR; /* where to print version/usage */
71 static jboolean printXUsage = JNI_FALSE; /* print and exit*/
72 static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */
73 static char *showSettings = NULL; /* print but continue */
74 static jboolean showResolvedModules = JNI_FALSE;
75 static jboolean listModules = JNI_FALSE;
76 static char *describeModule = NULL;
77 static jboolean validateModules = JNI_FALSE;
78
79 static const char *_program_name;
80 static const char *_launcher_name;
81 static jboolean _is_java_args = JNI_FALSE;
82 static jboolean _have_classpath = JNI_FALSE;
83 static const char *_fVersion;
84 static jboolean _wc_enabled = JNI_FALSE;
85
86 /*
87 * Entries for splash screen environment variables.
88 * putenv is performed in SelectVersion. We need
89 * them in memory until UnsetEnv, so they are made static
90 * global instead of auto local.
91 */
92 static char* splash_file_entry = NULL;
93 static char* splash_jar_entry = NULL;
94
95 /*
96 * List of VM options to be specified when the VM is created.
97 */
98 static JavaVMOption *options;
99 static int numOptions, maxOptions;
100
101 /*
102 * Prototypes for functions internal to launcher.
103 */
104 static void SetClassPath(const char *s);
105 static void SetMainModule(const char *s);
106 static void SelectVersion(int argc, char **argv, char **main_class);
107 static void SetJvmEnvironment(int argc, char **argv);
108 static jboolean ParseArguments(int *pargc, char ***pargv,
109 int *pmode, char **pwhat,
110 int *pret, const char *jrepath);
111 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv,
112 InvocationFunctions *ifn);
113 static jstring NewPlatformString(JNIEnv *env, char *s);
114 static jclass LoadMainClass(JNIEnv *env, int mode, char *name);
115 static jclass GetApplicationClass(JNIEnv *env);
116
117 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv);
118 static jboolean AddApplicationOptions(int cpathc, const char **cpathv);
119 static void SetApplicationClassPath(const char**);
120
121 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF);
122 static void PrintUsage(JNIEnv* env, jboolean doXUsage);
123 static void ShowSettings(JNIEnv* env, char *optString);
124 static void ShowResolvedModules(JNIEnv* env);
125 static void ListModules(JNIEnv* env);
126 static void DescribeModule(JNIEnv* env, char* optString);
127 static jboolean ValidateModules(JNIEnv* env);
128
129 static void SetPaths(int argc, char **argv);
130
131 static void DumpState();
132
133 enum OptionKind {
134 LAUNCHER_OPTION = 0,
135 LAUNCHER_OPTION_WITH_ARGUMENT,
136 LAUNCHER_MAIN_OPTION,
137 VM_LONG_OPTION,
138 VM_LONG_OPTION_WITH_ARGUMENT,
139 VM_OPTION
140 };
141
142 static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue);
143 static jboolean IsOptionWithArgument(int argc, char **argv);
144
145 /* Maximum supported entries from jvm.cfg. */
146 #define INIT_MAX_KNOWN_VMS 10
147
148 /* Values for vmdesc.flag */
149 enum vmdesc_flag {
150 VM_UNKNOWN = -1,
151 VM_KNOWN,
152 VM_ALIASED_TO,
153 VM_WARN,
154 VM_ERROR,
155 VM_IF_SERVER_CLASS,
156 VM_IGNORE
157 };
158
159 struct vmdesc {
160 char *name;
161 int flag;
162 char *alias;
163 char *server_class;
164 };
165 static struct vmdesc *knownVMs = NULL;
166 static int knownVMsCount = 0;
167 static int knownVMsLimit = 0;
168
169 static void GrowKnownVMs(int minimum);
170 static int KnownVMIndex(const char* name);
171 static void FreeKnownVMs();
172 static jboolean IsWildCardEnabled();
173
174 /*
175 * This reports error. VM will not be created and no usage is printed.
176 */
177 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \
178 do { \
179 if (!AC_ok) { \
180 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
181 printUsage = JNI_FALSE; \
182 *pret = 1; \
183 return JNI_FALSE; \
184 } \
185 } while (JNI_FALSE)
186
187 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \
188 do { \
189 if (AC_arg_count < 1) { \
190 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
191 printUsage = JNI_TRUE; \
192 *pret = 1; \
193 return JNI_TRUE; \
194 } \
195 } while (JNI_FALSE)
196
197 /*
198 * Running Java code in primordial thread caused many problems. We will
199 * create a new thread to invoke JVM. See 6316197 for more information.
200 */
201 static jlong threadStackSize = 0; /* stack size of the new thread */
202 static jlong maxHeapSize = 0; /* max heap size */
203 static jlong initialHeapSize = 0; /* inital heap size */
204
205 /*
206 * A minimum -Xss stack size suitable for all platforms.
207 */
208 #ifndef STACK_SIZE_MINIMUM
209 #define STACK_SIZE_MINIMUM (32 * KB)
210 #endif
211
212 /*
213 * Entry point.
214 */
215 int
216 JLI_Launch(int argc, char ** argv, /* main argc, argc */
217 int jargc, const char** jargv, /* java args */
218 int appclassc, const char** appclassv, /* app classpath */
219 const char* fullversion, /* full version defined */
220 const char* dotversion, /* UNUSED dot version defined */
221 const char* pname, /* program name */
222 const char* lname, /* launcher name */
223 jboolean javaargs, /* JAVA_ARGS */
224 jboolean cpwildcard, /* classpath wildcard*/
225 jboolean javaw, /* windows-only javaw */
226 jint ergo /* unused */
227 )
228 {
229 int mode = LM_UNKNOWN;
230 char *what = NULL;
231 char *main_class = NULL;
232 int ret;
233 InvocationFunctions ifn;
234 jlong start, end;
235 char jvmpath[MAXPATHLEN];
236 char jrepath[MAXPATHLEN];
237 char jvmcfg[MAXPATHLEN];
238
239 _fVersion = fullversion;
240 _launcher_name = lname;
241 _program_name = pname;
242 _is_java_args = javaargs;
243 _wc_enabled = cpwildcard;
244
245 InitLauncher(javaw);
246 DumpState();
247 if (JLI_IsTraceLauncher()) {
248 int i;
249 printf("Java args:\n");
250 for (i = 0; i < jargc ; i++) {
251 printf("jargv[%d] = %s\n", i, jargv[i]);
252 }
253 printf("Command line args:\n");
254 for (i = 0; i < argc ; i++) {
255 printf("argv[%d] = %s\n", i, argv[i]);
256 }
257 AddOption("-Dsun.java.launcher.diag=true", NULL);
258 }
259
260 /*
261 * SelectVersion() has several responsibilities:
262 *
263 * 1) Disallow specification of another JRE. With 1.9, another
264 * version of the JRE cannot be invoked.
265 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since
266 * all mJRE directives have been stripped from the request but
267 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been
268 * invoked from the command line.
269 */
270 SelectVersion(argc, argv, &main_class);
271
272 CreateExecutionEnvironment(&argc, &argv,
273 jrepath, sizeof(jrepath),
274 jvmpath, sizeof(jvmpath),
275 jvmcfg, sizeof(jvmcfg));
276
277 if (!IsJavaArgs()) {
278 SetJvmEnvironment(argc,argv);
279 }
280
281 ifn.CreateJavaVM = 0;
282 ifn.GetDefaultJavaVMInitArgs = 0;
283
284 if (JLI_IsTraceLauncher()) {
285 start = CounterGet();
286 }
287
288 if (!LoadJavaVM(jvmpath, &ifn)) {
289 return(6);
290 }
291
292 if (JLI_IsTraceLauncher()) {
293 end = CounterGet();
294 }
295
296 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n",
297 (long)(jint)Counter2Micros(end-start));
298
299 ++argv;
300 --argc;
301
302 if (IsJavaArgs()) {
303 /* Preprocess wrapper arguments */
304 TranslateApplicationArgs(jargc, jargv, &argc, &argv);
305 if (!AddApplicationOptions(appclassc, appclassv)) {
306 return(1);
307 }
308 } else {
309 /* Set default CLASSPATH */
310 char* cpath = getenv("CLASSPATH");
311 if (cpath != NULL) {
312 SetClassPath(cpath);
313 }
314 }
315
316 /* Parse command line options; if the return value of
317 * ParseArguments is false, the program should exit.
318 */
319 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath))
320 {
321 return(ret);
322 }
323
324 /* Override class path if -jar flag was specified */
325 if (mode == LM_JAR) {
326 SetClassPath(what); /* Override class path */
327 }
328
329 /* set the -Dsun.java.command pseudo property */
330 SetJavaCommandLineProp(what, argc, argv);
331
332 /* Set the -Dsun.java.launcher pseudo property */
333 SetJavaLauncherProp();
334
335 /* set the -Dsun.java.launcher.* platform properties */
336 SetJavaLauncherPlatformProps();
337
338 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret);
339 }
340 /*
341 * Always detach the main thread so that it appears to have ended when
342 * the application's main method exits. This will invoke the
343 * uncaught exception handler machinery if main threw an
344 * exception. An uncaught exception handler cannot change the
345 * launcher's return code except by calling System.exit.
346 *
347 * Wait for all non-daemon threads to end, then destroy the VM.
348 * This will actually create a trivial new Java waiter thread
349 * named "DestroyJavaVM", but this will be seen as a different
350 * thread from the one that executed main, even though they are
351 * the same C thread. This allows mainThread.join() and
352 * mainThread.isAlive() to work as expected.
353 */
354 #define LEAVE() \
355 do { \
356 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \
357 JLI_ReportErrorMessage(JVM_ERROR2); \
358 ret = 1; \
359 } \
360 if (JNI_TRUE) { \
361 (*vm)->DestroyJavaVM(vm); \
362 return ret; \
363 } \
364 } while (JNI_FALSE)
365
366 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \
367 do { \
368 if ((*env)->ExceptionOccurred(env)) { \
369 JLI_ReportExceptionDescription(env); \
370 LEAVE(); \
371 } \
372 if ((CENL_exception) == NULL) { \
373 JLI_ReportErrorMessage(JNI_ERROR); \
374 LEAVE(); \
375 } \
376 } while (JNI_FALSE)
377
378 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \
379 do { \
380 if ((*env)->ExceptionOccurred(env)) { \
381 JLI_ReportExceptionDescription(env); \
382 ret = (CEL_return_value); \
383 LEAVE(); \
384 } \
385 } while (JNI_FALSE)
386
387
388 int JNICALL
389 JavaMain(void * _args)
390 {
391 JavaMainArgs *args = (JavaMainArgs *)_args;
392 int argc = args->argc;
393 char **argv = args->argv;
394 int mode = args->mode;
395 char *what = args->what;
396 InvocationFunctions ifn = args->ifn;
397
398 JavaVM *vm = 0;
399 JNIEnv *env = 0;
400 jclass mainClass = NULL;
401 jclass appClass = NULL; // actual application class being launched
402 jmethodID mainID;
403 jobjectArray mainArgs;
404 int ret = 0;
405 jlong start, end;
406
407 RegisterThread();
408
409 /* Initialize the virtual machine */
410 start = CounterGet();
411 if (!InitializeJVM(&vm, &env, &ifn)) {
412 JLI_ReportErrorMessage(JVM_ERROR1);
413 exit(1);
414 }
415
416 if (showSettings != NULL) {
417 ShowSettings(env, showSettings);
418 CHECK_EXCEPTION_LEAVE(1);
419 }
420
421 // show resolved modules and continue
422 if (showResolvedModules) {
423 ShowResolvedModules(env);
424 CHECK_EXCEPTION_LEAVE(1);
425 }
426
427 // list observable modules, then exit
428 if (listModules) {
429 ListModules(env);
430 CHECK_EXCEPTION_LEAVE(1);
431 LEAVE();
432 }
433
434 // describe a module, then exit
435 if (describeModule != NULL) {
436 DescribeModule(env, describeModule);
437 CHECK_EXCEPTION_LEAVE(1);
438 LEAVE();
439 }
440
441 // validate modules on the module path, then exit
442 if (validateModules) {
443 jboolean okay = ValidateModules(env);
444 CHECK_EXCEPTION_LEAVE(1);
445 if (!okay) ret = 1;
446 LEAVE();
447 }
448
449 if (printVersion || showVersion) {
450 PrintJavaVersion(env, showVersion);
451 CHECK_EXCEPTION_LEAVE(0);
452 if (printVersion) {
453 LEAVE();
454 }
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 }
589
590 /*
591 * Test if the given name is a module-system white-space option that
592 * will be passed to the VM with its corresponding long-form option
593 * name and "=" delimiter.
594 */
595 static jboolean
596 IsModuleOption(const char* name) {
597 return JLI_StrCmp(name, "--module-path") == 0 ||
598 JLI_StrCmp(name, "-p") == 0 ||
599 JLI_StrCmp(name, "--upgrade-module-path") == 0 ||
600 JLI_StrCmp(name, "--add-modules") == 0 ||
601 JLI_StrCmp(name, "--limit-modules") == 0 ||
602 JLI_StrCmp(name, "--add-exports") == 0 ||
603 JLI_StrCmp(name, "--add-opens") == 0 ||
604 JLI_StrCmp(name, "--add-reads") == 0 ||
605 JLI_StrCmp(name, "--patch-module") == 0;
606 }
607
608 static jboolean
609 IsLongFormModuleOption(const char* name) {
610 return JLI_StrCCmp(name, "--module-path=") == 0 ||
611 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 ||
612 JLI_StrCCmp(name, "--add-modules=") == 0 ||
613 JLI_StrCCmp(name, "--limit-modules=") == 0 ||
614 JLI_StrCCmp(name, "--add-exports=") == 0 ||
615 JLI_StrCCmp(name, "--add-reads=") == 0 ||
616 JLI_StrCCmp(name, "--patch-module=") == 0;
617 }
618
619 /*
620 * Test if the given name has a white space option.
621 */
622 jboolean
623 IsWhiteSpaceOption(const char* name) {
624 return IsModuleOption(name) ||
625 IsLauncherOption(name);
626 }
627
628 /*
629 * Checks the command line options to find which JVM type was
630 * specified. If no command line option was given for the JVM type,
631 * the default type is used. The environment variable
632 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also
633 * checked as ways of specifying which JVM type to invoke.
634 */
635 char *
636 CheckJvmType(int *pargc, char ***argv, jboolean speculative) {
637 int i, argi;
638 int argc;
639 char **newArgv;
640 int newArgvIdx = 0;
641 int isVMType;
642 int jvmidx = -1;
643 char *jvmtype = getenv("JDK_ALTERNATE_VM");
644
645 argc = *pargc;
646
647 /* To make things simpler we always copy the argv array */
648 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *));
649
650 /* The program name is always present */
651 newArgv[newArgvIdx++] = (*argv)[0];
652
653 for (argi = 1; argi < argc; argi++) {
654 char *arg = (*argv)[argi];
655 isVMType = 0;
656
657 if (IsJavaArgs()) {
658 if (arg[0] != '-') {
659 newArgv[newArgvIdx++] = arg;
660 continue;
661 }
662 } else {
663 if (IsWhiteSpaceOption(arg)) {
664 newArgv[newArgvIdx++] = arg;
665 argi++;
666 if (argi < argc) {
667 newArgv[newArgvIdx++] = (*argv)[argi];
668 }
669 continue;
670 }
671 if (arg[0] != '-') break;
672 }
673
674 /* Did the user pass an explicit VM type? */
675 i = KnownVMIndex(arg);
676 if (i >= 0) {
677 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */
678 isVMType = 1;
679 *pargc = *pargc - 1;
680 }
681
682 /* Did the user specify an "alternate" VM? */
683 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) {
684 isVMType = 1;
685 jvmtype = arg+((arg[1]=='X')? 10 : 12);
686 jvmidx = -1;
687 }
688
689 if (!isVMType) {
690 newArgv[newArgvIdx++] = arg;
691 }
692 }
693
694 /*
695 * Finish copying the arguments if we aborted the above loop.
696 * NOTE that if we aborted via "break" then we did NOT copy the
697 * last argument above, and in addition argi will be less than
698 * argc.
699 */
700 while (argi < argc) {
701 newArgv[newArgvIdx++] = (*argv)[argi];
702 argi++;
703 }
704
705 /* argv is null-terminated */
706 newArgv[newArgvIdx] = 0;
707
708 /* Copy back argv */
709 *argv = newArgv;
710 *pargc = newArgvIdx;
711
712 /* use the default VM type if not specified (no alias processing) */
713 if (jvmtype == NULL) {
714 char* result = knownVMs[0].name+1;
715 JLI_TraceLauncher("Default VM: %s\n", result);
716 return result;
717 }
718
719 /* if using an alternate VM, no alias processing */
720 if (jvmidx < 0)
721 return jvmtype;
722
723 /* Resolve aliases first */
724 {
725 int loopCount = 0;
726 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) {
727 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias);
728
729 if (loopCount > knownVMsCount) {
730 if (!speculative) {
731 JLI_ReportErrorMessage(CFG_ERROR1);
732 exit(1);
733 } else {
734 return "ERROR";
735 /* break; */
736 }
737 }
738
739 if (nextIdx < 0) {
740 if (!speculative) {
741 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias);
742 exit(1);
743 } else {
744 return "ERROR";
745 }
746 }
747 jvmidx = nextIdx;
748 jvmtype = knownVMs[jvmidx].name+1;
749 loopCount++;
750 }
751 }
752
753 switch (knownVMs[jvmidx].flag) {
754 case VM_WARN:
755 if (!speculative) {
756 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1);
757 }
758 /* fall through */
759 case VM_IGNORE:
760 jvmtype = knownVMs[jvmidx=0].name + 1;
761 /* fall through */
762 case VM_KNOWN:
763 break;
764 case VM_ERROR:
765 if (!speculative) {
766 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype);
767 exit(1);
768 } else {
769 return "ERROR";
770 }
771 }
772
773 return jvmtype;
774 }
775
776 /*
777 * This method must be called before the VM is loaded, primarily
778 * used to parse and set any VM related options or env variables.
779 * This function is non-destructive leaving the argument list intact.
780 */
781 static void
782 SetJvmEnvironment(int argc, char **argv) {
783
784 static const char* NMT_Env_Name = "NMT_LEVEL_";
785 int i;
786 /* process only the launcher arguments */
787 for (i = 0; i < argc; i++) {
788 char *arg = argv[i];
789 /*
790 * Since this must be a VM flag we stop processing once we see
791 * an argument the launcher would not have processed beyond (such
792 * as -version or -h), or an argument that indicates the following
793 * arguments are for the application (i.e. the main class name, or
794 * the -jar argument).
795 */
796 if (i > 0) {
797 char *prev = argv[i - 1];
798 // skip non-dash arg preceded by class path specifiers
799 if (*arg != '-' && IsWhiteSpaceOption(prev)) {
800 continue;
801 }
802
803 if (*arg != '-' || isTerminalOpt(arg)) {
804 return;
805 }
806 }
807 /*
808 * The following case checks for "-XX:NativeMemoryTracking=value".
809 * If value is non null, an environmental variable set to this value
810 * will be created to be used by the JVM.
811 * The argument is passed to the JVM, which will check validity.
812 * The JVM is responsible for removing the env variable.
813 */
814 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) {
815 int retval;
816 // get what follows this parameter, include "="
817 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking=");
818 if (JLI_StrLen(arg) > pnlen) {
819 char* value = arg + pnlen;
820 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits
821
822 /*
823 * ensures that malloc successful
824 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call
825 * that could store the address.
826 */
827 char * pbuf = (char*)JLI_MemAlloc(pbuflen);
828
829 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value);
830 retval = JLI_PutEnv(pbuf);
831 if (JLI_IsTraceLauncher()) {
832 char* envName;
833 char* envBuf;
834
835 // ensures that malloc successful
836 envName = (char*)JLI_MemAlloc(pbuflen);
837 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid());
838
839 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName);
840 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf);
841 envBuf = getenv(envName);
842 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf);
843 free(envName);
844 }
845 }
846 }
847 }
848 }
849
850 /* copied from HotSpot function "atomll()" */
851 static int
852 parse_size(const char *s, jlong *result) {
853 jlong n = 0;
854 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n);
855 if (args_read != 1) {
856 return 0;
857 }
858 while (*s != '\0' && *s >= '0' && *s <= '9') {
859 s++;
860 }
861 // 4705540: illegal if more characters are found after the first non-digit
862 if (JLI_StrLen(s) > 1) {
863 return 0;
864 }
865 switch (*s) {
866 case 'T': case 't':
867 *result = n * GB * KB;
868 return 1;
869 case 'G': case 'g':
870 *result = n * GB;
871 return 1;
872 case 'M': case 'm':
873 *result = n * MB;
874 return 1;
875 case 'K': case 'k':
876 *result = n * KB;
877 return 1;
878 case '\0':
879 *result = n;
880 return 1;
881 default:
882 /* Create JVM with default stack and let VM handle malformed -Xss string*/
883 return 0;
884 }
885 }
886
887 /*
888 * Adds a new VM option with the given name and value.
889 */
890 void
891 AddOption(char *str, void *info)
892 {
893 /*
894 * Expand options array if needed to accommodate at least one more
895 * VM option.
896 */
897 if (numOptions >= maxOptions) {
898 if (options == 0) {
899 maxOptions = 4;
900 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
901 } else {
902 JavaVMOption *tmp;
903 maxOptions *= 2;
904 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
905 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
906 JLI_MemFree(options);
907 options = tmp;
908 }
909 }
910 options[numOptions].optionString = str;
911 options[numOptions++].extraInfo = info;
912
913 if (JLI_StrCCmp(str, "-Xss") == 0) {
914 jlong tmp;
915 if (parse_size(str + 4, &tmp)) {
916 threadStackSize = tmp;
917 /*
918 * Make sure the thread stack size is big enough that we won't get a stack
919 * overflow before the JVM startup code can check to make sure the stack
920 * is big enough.
921 */
922 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) {
923 threadStackSize = STACK_SIZE_MINIMUM;
924 }
925 }
926 }
927
928 if (JLI_StrCCmp(str, "-Xmx") == 0) {
929 jlong tmp;
930 if (parse_size(str + 4, &tmp)) {
931 maxHeapSize = tmp;
932 }
933 }
934
935 if (JLI_StrCCmp(str, "-Xms") == 0) {
936 jlong tmp;
937 if (parse_size(str + 4, &tmp)) {
938 initialHeapSize = tmp;
939 }
940 }
941 }
942
943 static void
944 SetClassPath(const char *s)
945 {
946 char *def;
947 const char *orig = s;
948 static const char format[] = "-Djava.class.path=%s";
949 /*
950 * usually we should not get a null pointer, but there are cases where
951 * we might just get one, in which case we simply ignore it, and let the
952 * caller deal with it
953 */
954 if (s == NULL)
955 return;
956 s = JLI_WildcardExpandClasspath(s);
957 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s))
958 // s is became corrupted after expanding wildcards
959 return;
960 def = JLI_MemAlloc(sizeof(format)
961 - 2 /* strlen("%s") */
962 + JLI_StrLen(s));
963 sprintf(def, format, s);
964 AddOption(def, NULL);
965 if (s != orig)
966 JLI_MemFree((char *) s);
967 _have_classpath = JNI_TRUE;
968 }
969
970 static void
971 AddLongFormOption(const char *option, const char *arg)
972 {
973 static const char format[] = "%s=%s";
974 char *def;
975 size_t def_len;
976
977 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1;
978 def = JLI_MemAlloc(def_len);
979 JLI_Snprintf(def, def_len, format, option, arg);
980 AddOption(def, NULL);
981 }
982
983 static void
984 SetMainModule(const char *s)
985 {
986 static const char format[] = "-Djdk.module.main=%s";
987 char* slash = JLI_StrChr(s, '/');
988 size_t s_len, def_len;
989 char *def;
990
991 /* value may be <module> or <module>/<mainclass> */
992 if (slash == NULL) {
993 s_len = JLI_StrLen(s);
994 } else {
995 s_len = (size_t) (slash - s);
996 }
997 def_len = sizeof(format)
998 - 2 /* strlen("%s") */
999 + s_len;
1000 def = JLI_MemAlloc(def_len);
1001 JLI_Snprintf(def, def_len, format, s);
1002 AddOption(def, NULL);
1003 }
1004
1005 /*
1006 * The SelectVersion() routine ensures that an appropriate version of
1007 * the JRE is running. The specification for the appropriate version
1008 * is obtained from either the manifest of a jar file (preferred) or
1009 * from command line options.
1010 * The routine also parses splash screen command line options and
1011 * passes on their values in private environment variables.
1012 */
1013 static void
1014 SelectVersion(int argc, char **argv, char **main_class)
1015 {
1016 char *arg;
1017 char *operand;
1018 char *version = NULL;
1019 char *jre = NULL;
1020 int jarflag = 0;
1021 int headlessflag = 0;
1022 int restrict_search = -1; /* -1 implies not known */
1023 manifest_info info;
1024 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "=";
1025 char *splash_file_name = NULL;
1026 char *splash_jar_name = NULL;
1027 char *env_in;
1028 int res;
1029 jboolean has_arg;
1030
1031 /*
1032 * If the version has already been selected, set *main_class
1033 * with the value passed through the environment (if any) and
1034 * simply return.
1035 */
1036
1037 /*
1038 * This environmental variable can be set by mJRE capable JREs
1039 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been
1040 * stripped by those JREs. This environmental variable allows 1.9+
1041 * JREs to be started by these mJRE capable JREs.
1042 * Note that mJRE directives in the jar manifest file would have been
1043 * ignored for a JRE started by another JRE...
1044 * .. skipped for JRE 1.5 and beyond.
1045 * .. not even checked for pre 1.5.
1046 */
1047 if ((env_in = getenv(ENV_ENTRY)) != NULL) {
1048 if (*env_in != '\0')
1049 *main_class = JLI_StringDup(env_in);
1050 return;
1051 }
1052
1053 /*
1054 * Scan through the arguments for options relevant to multiple JRE
1055 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8.
1056 *
1057 * This capability is no longer available with JRE versions 1.9 and later.
1058 * These command line options are reported as errors.
1059 */
1060
1061 argc--;
1062 argv++;
1063 while ((arg = *argv) != 0 && *arg == '-') {
1064 has_arg = IsOptionWithArgument(argc, argv);
1065 if (JLI_StrCCmp(arg, "-version:") == 0) {
1066 JLI_ReportErrorMessage(SPC_ERROR1);
1067 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) {
1068 JLI_ReportErrorMessage(SPC_ERROR2);
1069 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) {
1070 JLI_ReportErrorMessage(SPC_ERROR2);
1071 } else {
1072 if (JLI_StrCmp(arg, "-jar") == 0)
1073 jarflag = 1;
1074 if (IsWhiteSpaceOption(arg)) {
1075 if (has_arg) {
1076 argc--;
1077 argv++;
1078 arg = *argv;
1079 }
1080 }
1081
1082 /*
1083 * Checking for headless toolkit option in the some way as AWT does:
1084 * "true" means true and any other value means false
1085 */
1086 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) {
1087 headlessflag = 1;
1088 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) {
1089 headlessflag = 0;
1090 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1091 splash_file_name = arg+8;
1092 }
1093 }
1094 argc--;
1095 argv++;
1096 }
1097 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */
1098 operand = NULL;
1099 } else {
1100 argc--;
1101 operand = *argv++;
1102 }
1103
1104 /*
1105 * If there is a jar file, read the manifest. If the jarfile can't be
1106 * read, the manifest can't be read from the jar file, or the manifest
1107 * is corrupt, issue the appropriate error messages and exit.
1108 *
1109 * Even if there isn't a jar file, construct a manifest_info structure
1110 * containing the command line information. It's a convenient way to carry
1111 * this data around.
1112 */
1113 if (jarflag && operand) {
1114 if ((res = JLI_ParseManifest(operand, &info)) != 0) {
1115 if (res == -1)
1116 JLI_ReportErrorMessage(JAR_ERROR2, operand);
1117 else
1118 JLI_ReportErrorMessage(JAR_ERROR3, operand);
1119 exit(1);
1120 }
1121
1122 /*
1123 * Command line splash screen option should have precedence
1124 * over the manifest, so the manifest data is used only if
1125 * splash_file_name has not been initialized above during command
1126 * line parsing
1127 */
1128 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) {
1129 splash_file_name = info.splashscreen_image_file_name;
1130 splash_jar_name = operand;
1131 }
1132 } else {
1133 info.manifest_version = NULL;
1134 info.main_class = NULL;
1135 info.jre_version = NULL;
1136 info.jre_restrict_search = 0;
1137 }
1138
1139 /*
1140 * Passing on splash screen info in environment variables
1141 */
1142 if (splash_file_name && !headlessflag) {
1143 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1);
1144 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
1145 JLI_StrCat(splash_file_entry, splash_file_name);
1146 putenv(splash_file_entry);
1147 }
1148 if (splash_jar_name && !headlessflag) {
1149 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1);
1150 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
1151 JLI_StrCat(splash_jar_entry, splash_jar_name);
1152 putenv(splash_jar_entry);
1153 }
1154
1155
1156 /*
1157 * "Valid" returns (other than unrecoverable errors) follow. Set
1158 * main_class as a side-effect of this routine.
1159 */
1160 if (info.main_class != NULL)
1161 *main_class = JLI_StringDup(info.main_class);
1162
1163 if (info.jre_version == NULL) {
1164 JLI_FreeManifest();
1165 return;
1166 }
1167
1168 }
1169
1170 /*
1171 * Test if the current argv is an option, i.e. with a leading `-`
1172 * and followed with an argument without a leading `-`.
1173 */
1174 static jboolean
1175 IsOptionWithArgument(int argc, char** argv) {
1176 char* option;
1177 char* arg;
1178
1179 if (argc <= 1)
1180 return JNI_FALSE;
1181
1182 option = *argv;
1183 arg = *(argv+1);
1184 return *option == '-' && *arg != '-';
1185 }
1186
1187 /*
1188 * Gets the option, and its argument if the option has an argument.
1189 * It will update *pargc, **pargv to the next option.
1190 */
1191 static int
1192 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) {
1193 int argc = *pargc;
1194 char** argv = *pargv;
1195 char* arg = *argv;
1196
1197 char* option = arg;
1198 char* value = NULL;
1199 char* equals = NULL;
1200 int kind = LAUNCHER_OPTION;
1201 jboolean has_arg = JNI_FALSE;
1202
1203 // check if this option may be a white-space option with an argument
1204 has_arg = IsOptionWithArgument(argc, argv);
1205
1206 argv++; --argc;
1207 if (IsLauncherOption(arg)) {
1208 if (has_arg) {
1209 value = *argv;
1210 argv++; --argc;
1211 }
1212 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION
1213 : LAUNCHER_OPTION_WITH_ARGUMENT;
1214 } else if (IsModuleOption(arg)) {
1215 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1216 if (has_arg) {
1217 value = *argv;
1218 argv++; --argc;
1219 }
1220
1221 /*
1222 * Support short form alias
1223 */
1224 if (JLI_StrCmp(arg, "-p") == 0) {
1225 option = "--module-path";
1226 }
1227
1228 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) {
1229 value = equals+1;
1230 if (JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1231 JLI_StrCCmp(arg, "--module=") == 0 ||
1232 JLI_StrCCmp(arg, "--class-path=") == 0) {
1233 kind = LAUNCHER_OPTION_WITH_ARGUMENT;
1234 } else {
1235 kind = VM_LONG_OPTION;
1236 }
1237 }
1238
1239 *pargc = argc;
1240 *pargv = argv;
1241 *poption = option;
1242 *pvalue = value;
1243 return kind;
1244 }
1245
1246 /*
1247 * Parses command line arguments. Returns JNI_FALSE if launcher
1248 * should exit without starting vm, returns JNI_TRUE if vm needs
1249 * to be started to process given options. *pret (the launcher
1250 * process return value) is set to 0 for a normal exit.
1251 */
1252 static jboolean
1253 ParseArguments(int *pargc, char ***pargv,
1254 int *pmode, char **pwhat,
1255 int *pret, const char *jrepath)
1256 {
1257 int argc = *pargc;
1258 char **argv = *pargv;
1259 int mode = LM_UNKNOWN;
1260 char *arg;
1261
1262 *pret = 0;
1263
1264 while ((arg = *argv) != 0 && *arg == '-') {
1265 char *option = NULL;
1266 char *value = NULL;
1267 int kind = GetOpt(&argc, &argv, &option, &value);
1268 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0;
1269 jboolean has_arg_any_len = value != NULL;
1270
1271 /*
1272 * Option to set main entry point
1273 */
1274 if (JLI_StrCmp(arg, "-jar") == 0) {
1275 ARG_CHECK(argc, ARG_ERROR2, arg);
1276 mode = LM_JAR;
1277 } else if (JLI_StrCmp(arg, "--module") == 0 ||
1278 JLI_StrCCmp(arg, "--module=") == 0 ||
1279 JLI_StrCmp(arg, "-m") == 0) {
1280 REPORT_ERROR (has_arg, ARG_ERROR5, arg);
1281 SetMainModule(value);
1282 mode = LM_MODULE;
1283 if (has_arg) {
1284 *pwhat = value;
1285 break;
1286 }
1287 } else if (JLI_StrCmp(arg, "--class-path") == 0 ||
1288 JLI_StrCCmp(arg, "--class-path=") == 0 ||
1289 JLI_StrCmp(arg, "-classpath") == 0 ||
1290 JLI_StrCmp(arg, "-cp") == 0) {
1291 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg);
1292 SetClassPath(value);
1293 mode = LM_CLASS;
1294 } else if (JLI_StrCmp(arg, "--list-modules") == 0) {
1295 listModules = JNI_TRUE;
1296 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) {
1297 showResolvedModules = JNI_TRUE;
1298 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) {
1299 AddOption("-Djdk.module.minimumBoot=true", NULL);
1300 validateModules = JNI_TRUE;
1301 } else if (JLI_StrCmp(arg, "--describe-module") == 0 ||
1302 JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1303 JLI_StrCmp(arg, "-d") == 0) {
1304 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg);
1305 describeModule = value;
1306 /*
1307 * Parse white-space options
1308 */
1309 } else if (has_arg) {
1310 if (kind == VM_LONG_OPTION) {
1311 AddOption(option, NULL);
1312 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) {
1313 AddLongFormOption(option, value);
1314 }
1315 /*
1316 * Error missing argument
1317 */
1318 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 ||
1319 JLI_StrCmp(arg, "-p") == 0 ||
1320 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) {
1321 REPORT_ERROR (has_arg, ARG_ERROR4, arg);
1322
1323 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) {
1324 REPORT_ERROR (has_arg, ARG_ERROR6, arg);
1325 /*
1326 * The following cases will cause the argument parsing to stop
1327 */
1328 } else if (JLI_StrCmp(arg, "-help") == 0 ||
1329 JLI_StrCmp(arg, "-h") == 0 ||
1330 JLI_StrCmp(arg, "-?") == 0) {
1331 printUsage = JNI_TRUE;
1332 return JNI_TRUE;
1333 } else if (JLI_StrCmp(arg, "--help") == 0) {
1334 printUsage = JNI_TRUE;
1335 printTo = USE_STDOUT;
1336 return JNI_TRUE;
1337 } else if (JLI_StrCmp(arg, "-version") == 0) {
1338 printVersion = JNI_TRUE;
1339 return JNI_TRUE;
1340 } else if (JLI_StrCmp(arg, "--version") == 0) {
1341 printVersion = JNI_TRUE;
1342 printTo = USE_STDOUT;
1343 return JNI_TRUE;
1344 } else if (JLI_StrCmp(arg, "-showversion") == 0) {
1345 showVersion = JNI_TRUE;
1346 } else if (JLI_StrCmp(arg, "--show-version") == 0) {
1347 showVersion = JNI_TRUE;
1348 printTo = USE_STDOUT;
1349 } else if (JLI_StrCmp(arg, "--dry-run") == 0) {
1350 dryRun = JNI_TRUE;
1351 } else if (JLI_StrCmp(arg, "-X") == 0) {
1352 printXUsage = JNI_TRUE;
1353 return JNI_TRUE;
1354 } else if (JLI_StrCmp(arg, "--help-extra") == 0) {
1355 printXUsage = JNI_TRUE;
1356 printTo = USE_STDOUT;
1357 return JNI_TRUE;
1358 /*
1359 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT.
1360 * In the latter case, any SUBOPT value not recognized will default to "all"
1361 */
1362 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 ||
1363 JLI_StrCCmp(arg, "-XshowSettings:") == 0) {
1364 showSettings = arg;
1365 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) {
1366 AddOption("-Dsun.java.launcher.diag=true", NULL);
1367 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) {
1368 AddOption("-Djdk.module.showModuleResolution=true", NULL);
1369 /*
1370 * The following case provide backward compatibility with old-style
1371 * command line options.
1372 */
1373 } else if (JLI_StrCmp(arg, "-fullversion") == 0) {
1374 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion());
1375 return JNI_FALSE;
1376 } else if (JLI_StrCmp(arg, "--full-version") == 0) {
1377 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion());
1378 return JNI_FALSE;
1379 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) {
1380 AddOption("-verbose:gc", NULL);
1381 } else if (JLI_StrCmp(arg, "-t") == 0) {
1382 AddOption("-Xt", NULL);
1383 } else if (JLI_StrCmp(arg, "-tm") == 0) {
1384 AddOption("-Xtm", NULL);
1385 } else if (JLI_StrCmp(arg, "-debug") == 0) {
1386 AddOption("-Xdebug", NULL);
1387 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) {
1388 AddOption("-Xnoclassgc", NULL);
1389 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) {
1390 AddOption("-Xverify:all", NULL);
1391 } else if (JLI_StrCmp(arg, "-verify") == 0) {
1392 AddOption("-Xverify:all", NULL);
1393 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) {
1394 AddOption("-Xverify:remote", NULL);
1395 } else if (JLI_StrCmp(arg, "-noverify") == 0) {
1396 AddOption("-Xverify:none", NULL);
1397 } else if (JLI_StrCCmp(arg, "-ss") == 0 ||
1398 JLI_StrCCmp(arg, "-oss") == 0 ||
1399 JLI_StrCCmp(arg, "-ms") == 0 ||
1400 JLI_StrCCmp(arg, "-mx") == 0) {
1401 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6);
1402 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */
1403 AddOption(tmp, NULL);
1404 } else if (JLI_StrCmp(arg, "-checksource") == 0 ||
1405 JLI_StrCmp(arg, "-cs") == 0 ||
1406 JLI_StrCmp(arg, "-noasyncgc") == 0) {
1407 /* No longer supported */
1408 JLI_ReportErrorMessage(ARG_WARN, arg);
1409 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1410 ; /* Ignore machine independent options already handled */
1411 } else if (ProcessPlatformOption(arg)) {
1412 ; /* Processing of platform dependent options */
1413 } else {
1414 /* java.class.path set on the command line */
1415 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) {
1416 _have_classpath = JNI_TRUE;
1417 }
1418 AddOption(arg, NULL);
1419 }
1420 }
1421
1422 if (*pwhat == NULL && --argc >= 0) {
1423 *pwhat = *argv++;
1424 }
1425
1426 if (*pwhat == NULL) {
1427 /* LM_UNKNOWN okay for options that exit */
1428 if (!listModules && !describeModule && !validateModules) {
1429 *pret = 1;
1430 }
1431 } else if (mode == LM_UNKNOWN) {
1432 /* default to LM_CLASS if -m, -jar and -cp options are
1433 * not specified */
1434 if (!_have_classpath) {
1435 SetClassPath(".");
1436 }
1437 mode = LM_CLASS;
1438 }
1439
1440 if (argc >= 0) {
1441 *pargc = argc;
1442 *pargv = argv;
1443 }
1444
1445 *pmode = mode;
1446
1447 return JNI_TRUE;
1448 }
1449
1450 /*
1451 * Initializes the Java Virtual Machine. Also frees options array when
1452 * finished.
1453 */
1454 static jboolean
1455 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1456 {
1457 JavaVMInitArgs args;
1458 jint r;
1459
1460 memset(&args, 0, sizeof(args));
1461 args.version = JNI_VERSION_1_2;
1462 args.nOptions = numOptions;
1463 args.options = options;
1464 args.ignoreUnrecognized = JNI_FALSE;
1465
1466 if (JLI_IsTraceLauncher()) {
1467 int i = 0;
1468 printf("JavaVM args:\n ");
1469 printf("version 0x%08lx, ", (long)args.version);
1470 printf("ignoreUnrecognized is %s, ",
1471 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1472 printf("nOptions is %ld\n", (long)args.nOptions);
1473 for (i = 0; i < numOptions; i++)
1474 printf(" option[%2d] = '%s'\n",
1475 i, args.options[i].optionString);
1476 }
1477
1478 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1479 JLI_MemFree(options);
1480 return r == JNI_OK;
1481 }
1482
1483 static jclass helperClass = NULL;
1484
1485 jclass
1486 GetLauncherHelperClass(JNIEnv *env)
1487 {
1488 if (helperClass == NULL) {
1489 NULL_CHECK0(helperClass = FindBootStrapClass(env,
1490 "sun/launcher/LauncherHelper"));
1491 }
1492 return helperClass;
1493 }
1494
1495 static jmethodID makePlatformStringMID = NULL;
1496 /*
1497 * Returns a new Java string object for the specified platform string.
1498 */
1499 static jstring
1500 NewPlatformString(JNIEnv *env, char *s)
1501 {
1502 int len = (int)JLI_StrLen(s);
1503 jbyteArray ary;
1504 jclass cls = GetLauncherHelperClass(env);
1505 NULL_CHECK0(cls);
1506 if (s == NULL)
1507 return 0;
1508
1509 ary = (*env)->NewByteArray(env, len);
1510 if (ary != 0) {
1511 jstring str = 0;
1512 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1513 if (!(*env)->ExceptionOccurred(env)) {
1514 if (makePlatformStringMID == NULL) {
1515 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env,
1516 cls, "makePlatformString", "(Z[B)Ljava/lang/String;"));
1517 }
1518 str = (*env)->CallStaticObjectMethod(env, cls,
1519 makePlatformStringMID, USE_STDERR, ary);
1520 (*env)->DeleteLocalRef(env, ary);
1521 return str;
1522 }
1523 }
1524 return 0;
1525 }
1526
1527 /*
1528 * Returns a new array of Java string objects for the specified
1529 * array of platform strings.
1530 */
1531 jobjectArray
1532 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1533 {
1534 jarray cls;
1535 jarray ary;
1536 int i;
1537
1538 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String"));
1539 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1540 CHECK_EXCEPTION_RETURN_VALUE(0);
1541 for (i = 0; i < strc; i++) {
1542 jstring str = NewPlatformString(env, *strv++);
1543 NULL_CHECK0(str);
1544 (*env)->SetObjectArrayElement(env, ary, i, str);
1545 (*env)->DeleteLocalRef(env, str);
1546 }
1547 return ary;
1548 }
1549
1550 /*
1551 * Loads a class and verifies that the main class is present and it is ok to
1552 * call it for more details refer to the java implementation.
1553 */
1554 static jclass
1555 LoadMainClass(JNIEnv *env, int mode, char *name)
1556 {
1557 jmethodID mid;
1558 jstring str;
1559 jobject result;
1560 jlong start, end;
1561 jclass cls = GetLauncherHelperClass(env);
1562 NULL_CHECK0(cls);
1563 if (JLI_IsTraceLauncher()) {
1564 start = CounterGet();
1565 }
1566 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1567 "checkAndLoadMain",
1568 "(ZILjava/lang/String;)Ljava/lang/Class;"));
1569
1570 NULL_CHECK0(str = NewPlatformString(env, name));
1571 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid,
1572 USE_STDERR, mode, str));
1573
1574 if (JLI_IsTraceLauncher()) {
1575 end = CounterGet();
1576 printf("%ld micro seconds to load main class\n",
1577 (long)(jint)Counter2Micros(end-start));
1578 printf("----%s----\n", JLDEBUG_ENV_ENTRY);
1579 }
1580
1581 return (jclass)result;
1582 }
1583
1584 static jclass
1585 GetApplicationClass(JNIEnv *env)
1586 {
1587 jmethodID mid;
1588 jclass cls = GetLauncherHelperClass(env);
1589 NULL_CHECK0(cls);
1590 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1591 "getApplicationClass",
1592 "()Ljava/lang/Class;"));
1593
1594 return (*env)->CallStaticObjectMethod(env, cls, mid);
1595 }
1596
1597 static char* expandWildcardOnLongOpt(char* arg) {
1598 char *p, *value;
1599 size_t optLen, valueLen;
1600 p = JLI_StrChr(arg, '=');
1601
1602 if (p == NULL || p[1] == '\0') {
1603 JLI_ReportErrorMessage(ARG_ERROR1, arg);
1604 exit(1);
1605 }
1606 p++;
1607 value = (char *) JLI_WildcardExpandClasspath(p);
1608 if (p == value) {
1609 // no wildcard
1610 return arg;
1611 }
1612
1613 optLen = p - arg;
1614 valueLen = JLI_StrLen(value);
1615 p = JLI_MemAlloc(optLen + valueLen + 1);
1616 memcpy(p, arg, optLen);
1617 memcpy(p + optLen, value, valueLen);
1618 p[optLen + valueLen] = '\0';
1619 return p;
1620 }
1621
1622 /*
1623 * For tools, convert command line args thus:
1624 * javac -cp foo:foo/"*" -J-ms32m ...
1625 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1626 *
1627 * Takes 4 parameters, and returns the populated arguments
1628 */
1629 static void
1630 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv)
1631 {
1632 int argc = *pargc;
1633 char **argv = *pargv;
1634 int nargc = argc + jargc;
1635 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1636 int i;
1637
1638 *pargc = nargc;
1639 *pargv = nargv;
1640
1641 /* Copy the VM arguments (i.e. prefixed with -J) */
1642 for (i = 0; i < jargc; i++) {
1643 const char *arg = jargv[i];
1644 if (arg[0] == '-' && arg[1] == 'J') {
1645 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2);
1646 }
1647 }
1648
1649 for (i = 0; i < argc; i++) {
1650 char *arg = argv[i];
1651 if (arg[0] == '-' && arg[1] == 'J') {
1652 if (arg[2] == '\0') {
1653 JLI_ReportErrorMessage(ARG_ERROR3);
1654 exit(1);
1655 }
1656 *nargv++ = arg + 2;
1657 }
1658 }
1659
1660 /* Copy the rest of the arguments */
1661 for (i = 0; i < jargc ; i++) {
1662 const char *arg = jargv[i];
1663 if (arg[0] != '-' || arg[1] != 'J') {
1664 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg);
1665 }
1666 }
1667 for (i = 0; i < argc; i++) {
1668 char *arg = argv[i];
1669 if (arg[0] == '-') {
1670 if (arg[1] == 'J')
1671 continue;
1672 if (IsWildCardEnabled()) {
1673 if (IsClassPathOption(arg) && i < argc - 1) {
1674 *nargv++ = arg;
1675 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1676 i++;
1677 continue;
1678 }
1679 if (JLI_StrCCmp(arg, "--class-path=") == 0) {
1680 *nargv++ = expandWildcardOnLongOpt(arg);
1681 continue;
1682 }
1683 }
1684 }
1685 *nargv++ = arg;
1686 }
1687 *nargv = 0;
1688 }
1689
1690 /*
1691 * For our tools, we try to add 3 VM options:
1692 * -Denv.class.path=<envcp>
1693 * -Dapplication.home=<apphome>
1694 * -Djava.class.path=<appcp>
1695 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1696 * tells javac where to find binary classes through this environment
1697 * variable. Notice that users will be able to compile against our
1698 * tools classes (sun.tools.javac.Main) only if they explicitly add
1699 * tools.jar to CLASSPATH.
1700 * <apphome> is the directory where the application is installed.
1701 * <appcp> is the classpath to where our apps' classfiles are.
1702 */
1703 static jboolean
1704 AddApplicationOptions(int cpathc, const char **cpathv)
1705 {
1706 char *envcp, *appcp, *apphome;
1707 char home[MAXPATHLEN]; /* application home */
1708 char separator[] = { PATH_SEPARATOR, '\0' };
1709 int size, i;
1710
1711 {
1712 const char *s = getenv("CLASSPATH");
1713 if (s) {
1714 s = (char *) JLI_WildcardExpandClasspath(s);
1715 /* 40 for -Denv.class.path= */
1716 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow
1717 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40);
1718 sprintf(envcp, "-Denv.class.path=%s", s);
1719 AddOption(envcp, NULL);
1720 }
1721 }
1722 }
1723
1724 if (!GetApplicationHome(home, sizeof(home))) {
1725 JLI_ReportErrorMessage(CFG_ERROR5);
1726 return JNI_FALSE;
1727 }
1728
1729 /* 40 for '-Dapplication.home=' */
1730 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40);
1731 sprintf(apphome, "-Dapplication.home=%s", home);
1732 AddOption(apphome, NULL);
1733
1734 /* How big is the application's classpath? */
1735 if (cpathc > 0) {
1736 size = 40; /* 40: "-Djava.class.path=" */
1737 for (i = 0; i < cpathc; i++) {
1738 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */
1739 }
1740 appcp = (char *)JLI_MemAlloc(size + 1);
1741 JLI_StrCpy(appcp, "-Djava.class.path=");
1742 for (i = 0; i < cpathc; i++) {
1743 JLI_StrCat(appcp, home); /* c:\program files\myapp */
1744 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */
1745 JLI_StrCat(appcp, separator); /* ; */
1746 }
1747 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */
1748 AddOption(appcp, NULL);
1749 }
1750 return JNI_TRUE;
1751 }
1752
1753 /*
1754 * inject the -Dsun.java.command pseudo property into the args structure
1755 * this pseudo property is used in the HotSpot VM to expose the
1756 * Java class name and arguments to the main method to the VM. The
1757 * HotSpot VM uses this pseudo property to store the Java class name
1758 * (or jar file name) and the arguments to the class's main method
1759 * to the instrumentation memory region. The sun.java.command pseudo
1760 * property is not exported by HotSpot to the Java layer.
1761 */
1762 void
1763 SetJavaCommandLineProp(char *what, int argc, char **argv)
1764 {
1765
1766 int i = 0;
1767 size_t len = 0;
1768 char* javaCommand = NULL;
1769 char* dashDstr = "-Dsun.java.command=";
1770
1771 if (what == NULL) {
1772 /* unexpected, one of these should be set. just return without
1773 * setting the property
1774 */
1775 return;
1776 }
1777
1778 /* determine the amount of memory to allocate assuming
1779 * the individual components will be space separated
1780 */
1781 len = JLI_StrLen(what);
1782 for (i = 0; i < argc; i++) {
1783 len += JLI_StrLen(argv[i]) + 1;
1784 }
1785
1786 /* allocate the memory */
1787 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1);
1788
1789 /* build the -D string */
1790 *javaCommand = '\0';
1791 JLI_StrCat(javaCommand, dashDstr);
1792 JLI_StrCat(javaCommand, what);
1793
1794 for (i = 0; i < argc; i++) {
1795 /* the components of the string are space separated. In
1796 * the case of embedded white space, the relationship of
1797 * the white space separated components to their true
1798 * positional arguments will be ambiguous. This issue may
1799 * be addressed in a future release.
1800 */
1801 JLI_StrCat(javaCommand, " ");
1802 JLI_StrCat(javaCommand, argv[i]);
1803 }
1804
1805 AddOption(javaCommand, NULL);
1806 }
1807
1808 /*
1809 * JVM would like to know if it's created by a standard Sun launcher, or by
1810 * user native application, the following property indicates the former.
1811 */
1812 void
1813 SetJavaLauncherProp() {
1814 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL);
1815 }
1816
1817 /*
1818 * Prints the version information from the java.version and other properties.
1819 */
1820 static void
1821 PrintJavaVersion(JNIEnv *env, jboolean extraLF)
1822 {
1823 jclass ver;
1824 jmethodID print;
1825
1826 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps"));
1827 NULL_CHECK(print = (*env)->GetStaticMethodID(env,
1828 ver,
1829 (extraLF == JNI_TRUE) ? "println" : "print",
1830 "(Z)V"
1831 )
1832 );
1833
1834 (*env)->CallStaticVoidMethod(env, ver, print, printTo);
1835 }
1836
1837 /*
1838 * Prints all the Java settings, see the java implementation for more details.
1839 */
1840 static void
1841 ShowSettings(JNIEnv *env, char *optString)
1842 {
1843 jmethodID showSettingsID;
1844 jstring joptString;
1845 jclass cls = GetLauncherHelperClass(env);
1846 NULL_CHECK(cls);
1847 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls,
1848 "showSettings", "(ZLjava/lang/String;JJJ)V"));
1849 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1850 (*env)->CallStaticVoidMethod(env, cls, showSettingsID,
1851 USE_STDERR,
1852 joptString,
1853 (jlong)initialHeapSize,
1854 (jlong)maxHeapSize,
1855 (jlong)threadStackSize);
1856 }
1857
1858 /**
1859 * Show resolved modules
1860 */
1861 static void
1862 ShowResolvedModules(JNIEnv *env)
1863 {
1864 jmethodID showResolvedModulesID;
1865 jclass cls = GetLauncherHelperClass(env);
1866 NULL_CHECK(cls);
1867 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls,
1868 "showResolvedModules", "()V"));
1869 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID);
1870 }
1871
1872 /**
1873 * List observable modules
1874 */
1875 static void
1876 ListModules(JNIEnv *env)
1877 {
1878 jmethodID listModulesID;
1879 jclass cls = GetLauncherHelperClass(env);
1880 NULL_CHECK(cls);
1881 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls,
1882 "listModules", "()V"));
1883 (*env)->CallStaticVoidMethod(env, cls, listModulesID);
1884 }
1885
1886 /**
1887 * Describe a module
1888 */
1889 static void
1890 DescribeModule(JNIEnv *env, char *optString)
1891 {
1892 jmethodID describeModuleID;
1893 jstring joptString = NULL;
1894 jclass cls = GetLauncherHelperClass(env);
1895 NULL_CHECK(cls);
1896 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls,
1897 "describeModule", "(Ljava/lang/String;)V"));
1898 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1899 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString);
1900 }
1901
1902 /**
1903 * Validate modules
1904 */
1905 static jboolean
1906 ValidateModules(JNIEnv *env)
1907 {
1908 jmethodID validateModulesID;
1909 jclass cls = GetLauncherHelperClass(env);
1910 NULL_CHECK_RETURN_VALUE(cls, JNI_FALSE);
1911 validateModulesID = (*env)->GetStaticMethodID(env, cls, "validateModules", "()Z");
1912 NULL_CHECK_RETURN_VALUE(cls, JNI_FALSE);
1913 return (*env)->CallStaticBooleanMethod(env, cls, validateModulesID);
1914 }
1915
1916 /*
1917 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java
1918 */
1919 static void
1920 PrintUsage(JNIEnv* env, jboolean doXUsage)
1921 {
1922 jmethodID initHelp, vmSelect, vmSynonym, printHelp, printXUsageMessage;
1923 jstring jprogname, vm1, vm2;
1924 int i;
1925 jclass cls = GetLauncherHelperClass(env);
1926 NULL_CHECK(cls);
1927 if (doXUsage) {
1928 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls,
1929 "printXUsageMessage", "(Z)V"));
1930 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo);
1931 } else {
1932 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls,
1933 "initHelpMessage", "(Ljava/lang/String;)V"));
1934
1935 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage",
1936 "(Ljava/lang/String;Ljava/lang/String;)V"));
1937
1938 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls,
1939 "appendVmSynonymMessage",
1940 "(Ljava/lang/String;Ljava/lang/String;)V"));
1941
1942 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls,
1943 "printHelpMessage", "(Z)V"));
1944
1945 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name));
1946
1947 /* Initialize the usage message with the usual preamble */
1948 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname);
1949 CHECK_EXCEPTION_RETURN();
1950
1951
1952 /* Assemble the other variant part of the usage */
1953 for (i=1; i<knownVMsCount; i++) {
1954 if (knownVMs[i].flag == VM_KNOWN) {
1955 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1956 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1));
1957 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
1958 CHECK_EXCEPTION_RETURN();
1959 }
1960 }
1961 for (i=1; i<knownVMsCount; i++) {
1962 if (knownVMs[i].flag == VM_ALIASED_TO) {
1963 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1964 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1));
1965 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2);
1966 CHECK_EXCEPTION_RETURN();
1967 }
1968 }
1969
1970 /* Complete the usage message and print to stderr*/
1971 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo);
1972 }
1973 return;
1974 }
1975
1976 /*
1977 * Read the jvm.cfg file and fill the knownJVMs[] array.
1978 *
1979 * The functionality of the jvm.cfg file is subject to change without
1980 * notice and the mechanism will be removed in the future.
1981 *
1982 * The lexical structure of the jvm.cfg file is as follows:
1983 *
1984 * jvmcfg := { vmLine }
1985 * vmLine := knownLine
1986 * | aliasLine
1987 * | warnLine
1988 * | ignoreLine
1989 * | errorLine
1990 * | predicateLine
1991 * | commentLine
1992 * knownLine := flag "KNOWN" EOL
1993 * warnLine := flag "WARN" EOL
1994 * ignoreLine := flag "IGNORE" EOL
1995 * errorLine := flag "ERROR" EOL
1996 * aliasLine := flag "ALIASED_TO" flag EOL
1997 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
1998 * commentLine := "#" text EOL
1999 * flag := "-" identifier
2000 *
2001 * The semantics are that when someone specifies a flag on the command line:
2002 * - if the flag appears on a knownLine, then the identifier is used as
2003 * the name of the directory holding the JVM library (the name of the JVM).
2004 * - if the flag appears as the first flag on an aliasLine, the identifier
2005 * of the second flag is used as the name of the JVM.
2006 * - if the flag appears on a warnLine, the identifier is used as the
2007 * name of the JVM, but a warning is generated.
2008 * - if the flag appears on an ignoreLine, the identifier is recognized as the
2009 * name of a JVM, but the identifier is ignored and the default vm used
2010 * - if the flag appears on an errorLine, an error is generated.
2011 * - if the flag appears as the first flag on a predicateLine, and
2012 * the machine on which you are running passes the predicate indicated,
2013 * then the identifier of the second flag is used as the name of the JVM,
2014 * otherwise the identifier of the first flag is used as the name of the JVM.
2015 * If no flag is given on the command line, the first vmLine of the jvm.cfg
2016 * file determines the name of the JVM.
2017 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
2018 * since they only make sense if someone hasn't specified the name of the
2019 * JVM on the command line.
2020 *
2021 * The intent of the jvm.cfg file is to allow several JVM libraries to
2022 * be installed in different subdirectories of a single JRE installation,
2023 * for space-savings and convenience in testing.
2024 * The intent is explicitly not to provide a full aliasing or predicate
2025 * mechanism.
2026 */
2027 jint
2028 ReadKnownVMs(const char *jvmCfgName, jboolean speculative)
2029 {
2030 FILE *jvmCfg;
2031 char line[MAXPATHLEN+20];
2032 int cnt = 0;
2033 int lineno = 0;
2034 jlong start, end;
2035 int vmType;
2036 char *tmpPtr;
2037 char *altVMName = NULL;
2038 char *serverClassVMName = NULL;
2039 static char *whiteSpace = " \t";
2040 if (JLI_IsTraceLauncher()) {
2041 start = CounterGet();
2042 }
2043
2044 jvmCfg = fopen(jvmCfgName, "r");
2045 if (jvmCfg == NULL) {
2046 if (!speculative) {
2047 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName);
2048 exit(1);
2049 } else {
2050 return -1;
2051 }
2052 }
2053 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
2054 vmType = VM_UNKNOWN;
2055 lineno++;
2056 if (line[0] == '#')
2057 continue;
2058 if (line[0] != '-') {
2059 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName);
2060 }
2061 if (cnt >= knownVMsLimit) {
2062 GrowKnownVMs(cnt);
2063 }
2064 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */
2065 tmpPtr = line + JLI_StrCSpn(line, whiteSpace);
2066 if (*tmpPtr == 0) {
2067 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2068 } else {
2069 /* Null-terminate this string for JLI_StringDup below */
2070 *tmpPtr++ = 0;
2071 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2072 if (*tmpPtr == 0) {
2073 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2074 } else {
2075 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) {
2076 vmType = VM_KNOWN;
2077 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) {
2078 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2079 if (*tmpPtr != 0) {
2080 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2081 }
2082 if (*tmpPtr == 0) {
2083 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2084 } else {
2085 /* Null terminate altVMName */
2086 altVMName = tmpPtr;
2087 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2088 *tmpPtr = 0;
2089 vmType = VM_ALIASED_TO;
2090 }
2091 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) {
2092 vmType = VM_WARN;
2093 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) {
2094 vmType = VM_IGNORE;
2095 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) {
2096 vmType = VM_ERROR;
2097 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) {
2098 /* ignored */
2099 } else {
2100 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]);
2101 vmType = VM_KNOWN;
2102 }
2103 }
2104 }
2105
2106 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line);
2107 if (vmType != VM_UNKNOWN) {
2108 knownVMs[cnt].name = JLI_StringDup(line);
2109 knownVMs[cnt].flag = vmType;
2110 switch (vmType) {
2111 default:
2112 break;
2113 case VM_ALIASED_TO:
2114 knownVMs[cnt].alias = JLI_StringDup(altVMName);
2115 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n",
2116 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
2117 break;
2118 }
2119 cnt++;
2120 }
2121 }
2122 fclose(jvmCfg);
2123 knownVMsCount = cnt;
2124
2125 if (JLI_IsTraceLauncher()) {
2126 end = CounterGet();
2127 printf("%ld micro seconds to parse jvm.cfg\n",
2128 (long)(jint)Counter2Micros(end-start));
2129 }
2130
2131 return cnt;
2132 }
2133
2134
2135 static void
2136 GrowKnownVMs(int minimum)
2137 {
2138 struct vmdesc* newKnownVMs;
2139 int newMax;
2140
2141 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
2142 if (newMax <= minimum) {
2143 newMax = minimum;
2144 }
2145 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
2146 if (knownVMs != NULL) {
2147 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
2148 }
2149 JLI_MemFree(knownVMs);
2150 knownVMs = newKnownVMs;
2151 knownVMsLimit = newMax;
2152 }
2153
2154
2155 /* Returns index of VM or -1 if not found */
2156 static int
2157 KnownVMIndex(const char* name)
2158 {
2159 int i;
2160 if (JLI_StrCCmp(name, "-J") == 0) name += 2;
2161 for (i = 0; i < knownVMsCount; i++) {
2162 if (!JLI_StrCmp(name, knownVMs[i].name)) {
2163 return i;
2164 }
2165 }
2166 return -1;
2167 }
2168
2169 static void
2170 FreeKnownVMs()
2171 {
2172 int i;
2173 for (i = 0; i < knownVMsCount; i++) {
2174 JLI_MemFree(knownVMs[i].name);
2175 knownVMs[i].name = NULL;
2176 }
2177 JLI_MemFree(knownVMs);
2178 }
2179
2180 /*
2181 * Displays the splash screen according to the jar file name
2182 * and image file names stored in environment variables
2183 */
2184 void
2185 ShowSplashScreen()
2186 {
2187 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
2188 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
2189 int data_size;
2190 void *image_data = NULL;
2191 float scale_factor = 1;
2192 char *scaled_splash_name = NULL;
2193 jboolean isImageScaled = JNI_FALSE;
2194 size_t maxScaledImgNameLength = 0;
2195 if (file_name == NULL){
2196 return;
2197 }
2198 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name);
2199
2200 scaled_splash_name = JLI_MemAlloc(
2201 maxScaledImgNameLength * sizeof(char));
2202 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name,
2203 &scale_factor,
2204 scaled_splash_name, maxScaledImgNameLength);
2205 if (jar_name) {
2206
2207 if (isImageScaled) {
2208 image_data = JLI_JarUnpackFile(
2209 jar_name, scaled_splash_name, &data_size);
2210 }
2211
2212 if (!image_data) {
2213 scale_factor = 1;
2214 image_data = JLI_JarUnpackFile(
2215 jar_name, file_name, &data_size);
2216 }
2217 if (image_data) {
2218 DoSplashInit();
2219 DoSplashSetScaleFactor(scale_factor);
2220 DoSplashLoadMemory(image_data, data_size);
2221 JLI_MemFree(image_data);
2222 }
2223 } else {
2224 DoSplashInit();
2225 if (isImageScaled) {
2226 DoSplashSetScaleFactor(scale_factor);
2227 DoSplashLoadFile(scaled_splash_name);
2228 } else {
2229 DoSplashLoadFile(file_name);
2230 }
2231 }
2232 JLI_MemFree(scaled_splash_name);
2233
2234 DoSplashSetFileJarName(file_name, jar_name);
2235
2236 /*
2237 * Done with all command line processing and potential re-execs so
2238 * clean up the environment.
2239 */
2240 (void)UnsetEnv(ENV_ENTRY);
2241 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
2242 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
2243
2244 JLI_MemFree(splash_jar_entry);
2245 JLI_MemFree(splash_file_entry);
2246
2247 }
2248
2249 const char*
2250 GetFullVersion()
2251 {
2252 return _fVersion;
2253 }
2254
2255 const char*
2256 GetProgramName()
2257 {
2258 return _program_name;
2259 }
2260
2261 const char*
2262 GetLauncherName()
2263 {
2264 return _launcher_name;
2265 }
2266
2267 jboolean
2268 IsJavaArgs()
2269 {
2270 return _is_java_args;
2271 }
2272
2273 static jboolean
2274 IsWildCardEnabled()
2275 {
2276 return _wc_enabled;
2277 }
2278
2279 int
2280 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize,
2281 int argc, char **argv,
2282 int mode, char *what, int ret)
2283 {
2284
2285 /*
2286 * If user doesn't specify stack size, check if VM has a preference.
2287 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
2288 * return its default stack size through the init args structure.
2289 */
2290 if (threadStackSize == 0) {
2291 struct JDK1_1InitArgs args1_1;
2292 memset((void*)&args1_1, 0, sizeof(args1_1));
2293 args1_1.version = JNI_VERSION_1_1;
2294 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
2295 if (args1_1.javaStackSize > 0) {
2296 threadStackSize = args1_1.javaStackSize;
2297 }
2298 }
2299
2300 { /* Create a new thread to create JVM and invoke main method */
2301 JavaMainArgs args;
2302 int rslt;
2303
2304 args.argc = argc;
2305 args.argv = argv;
2306 args.mode = mode;
2307 args.what = what;
2308 args.ifn = *ifn;
2309
2310 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args);
2311 /* If the caller has deemed there is an error we
2312 * simply return that, otherwise we return the value of
2313 * the callee
2314 */
2315 return (ret != 0) ? ret : rslt;
2316 }
2317 }
2318
2319 static void
2320 DumpState()
2321 {
2322 if (!JLI_IsTraceLauncher()) return ;
2323 printf("Launcher state:\n");
2324 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex());
2325 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off");
2326 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off");
2327 printf("\tprogram name:%s\n", GetProgramName());
2328 printf("\tlauncher name:%s\n", GetLauncherName());
2329 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off");
2330 printf("\tfullversion:%s\n", GetFullVersion());
2331 }
2332
2333 /*
2334 * A utility procedure to always print to stderr
2335 */
2336 void
2337 JLI_ReportMessage(const char* fmt, ...)
2338 {
2339 va_list vl;
2340 va_start(vl, fmt);
2341 vfprintf(stderr, fmt, vl);
2342 fprintf(stderr, "\n");
2343 va_end(vl);
2344 }
2345
2346 /*
2347 * A utility procedure to always print to stdout
2348 */
2349 void
2350 JLI_ShowMessage(const char* fmt, ...)
2351 {
2352 va_list vl;
2353 va_start(vl, fmt);
2354 vfprintf(stdout, fmt, vl);
2355 fprintf(stdout, "\n");
2356 va_end(vl);
2357 }