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 /* set the -Dsun.java.launcher.* platform properties */
342 SetJavaLauncherPlatformProps();
343
344 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret);
345 }
346 /*
347 * Always detach the main thread so that it appears to have ended when
348 * the application's main method exits. This will invoke the
349 * uncaught exception handler machinery if main threw an
350 * exception. An uncaught exception handler cannot change the
351 * launcher's return code except by calling System.exit.
352 *
353 * Wait for all non-daemon threads to end, then destroy the VM.
354 * This will actually create a trivial new Java waiter thread
355 * named "DestroyJavaVM", but this will be seen as a different
356 * thread from the one that executed main, even though they are
357 * the same C thread. This allows mainThread.join() and
358 * mainThread.isAlive() to work as expected.
359 */
360 #define LEAVE() \
361 do { \
362 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \
363 JLI_ReportErrorMessage(JVM_ERROR2); \
364 ret = 1; \
365 } \
366 if (JNI_TRUE) { \
367 (*vm)->DestroyJavaVM(vm); \
368 return ret; \
369 } \
370 } while (JNI_FALSE)
371
372 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \
373 do { \
374 if ((*env)->ExceptionOccurred(env)) { \
375 JLI_ReportExceptionDescription(env); \
376 LEAVE(); \
377 } \
378 if ((CENL_exception) == NULL) { \
379 JLI_ReportErrorMessage(JNI_ERROR); \
380 LEAVE(); \
381 } \
382 } while (JNI_FALSE)
383
384 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \
385 do { \
386 if ((*env)->ExceptionOccurred(env)) { \
387 JLI_ReportExceptionDescription(env); \
388 ret = (CEL_return_value); \
389 LEAVE(); \
390 } \
391 } while (JNI_FALSE)
392
393
394 int
395 JavaMain(void* _args)
396 {
397 JavaMainArgs *args = (JavaMainArgs *)_args;
398 int argc = args->argc;
399 char **argv = args->argv;
400 int mode = args->mode;
401 char *what = args->what;
402 InvocationFunctions ifn = args->ifn;
403
404 JavaVM *vm = 0;
405 JNIEnv *env = 0;
406 jclass mainClass = NULL;
407 jclass appClass = NULL; // actual application class being launched
408 jmethodID mainID;
409 jobjectArray mainArgs;
410 int ret = 0;
411 jlong start, end;
412
413 RegisterThread();
414
415 /* Initialize the virtual machine */
416 start = CounterGet();
417 if (!InitializeJVM(&vm, &env, &ifn)) {
418 JLI_ReportErrorMessage(JVM_ERROR1);
419 exit(1);
420 }
421
422 if (showSettings != NULL) {
423 ShowSettings(env, showSettings);
424 CHECK_EXCEPTION_LEAVE(1);
425 }
426
427 // show resolved modules and continue
428 if (showResolvedModules) {
429 ShowResolvedModules(env);
430 CHECK_EXCEPTION_LEAVE(1);
431 }
432
433 // list observable modules, then exit
434 if (listModules) {
435 ListModules(env);
436 CHECK_EXCEPTION_LEAVE(1);
437 LEAVE();
438 }
439
440 // describe a module, then exit
441 if (describeModule != NULL) {
442 DescribeModule(env, describeModule);
443 CHECK_EXCEPTION_LEAVE(1);
444 LEAVE();
445 }
446
447 if (printVersion || showVersion) {
448 PrintJavaVersion(env, showVersion);
449 CHECK_EXCEPTION_LEAVE(0);
450 if (printVersion) {
451 LEAVE();
452 }
453 }
454
455 // modules have been validated at startup so exit
456 if (validateModules) {
457 LEAVE();
458 }
459
460 /* If the user specified neither a class name nor a JAR file */
461 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) {
462 PrintUsage(env, printXUsage);
463 CHECK_EXCEPTION_LEAVE(1);
464 LEAVE();
465 }
466
467 FreeKnownVMs(); /* after last possible PrintUsage */
468
469 if (JLI_IsTraceLauncher()) {
470 end = CounterGet();
471 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n",
472 (long)(jint)Counter2Micros(end-start));
473 }
474
475 /* At this stage, argc/argv have the application's arguments */
476 if (JLI_IsTraceLauncher()){
477 int i;
478 printf("%s is '%s'\n", launchModeNames[mode], what);
479 printf("App's argc is %d\n", argc);
480 for (i=0; i < argc; i++) {
481 printf(" argv[%2d] = '%s'\n", i, argv[i]);
482 }
483 }
484
485 ret = 1;
486
487 /*
488 * Get the application's main class. It also checks if the main
489 * method exists.
490 *
491 * See bugid 5030265. The Main-Class name has already been parsed
492 * from the manifest, but not parsed properly for UTF-8 support.
493 * Hence the code here ignores the value previously extracted and
494 * uses the pre-existing code to reextract the value. This is
495 * possibly an end of release cycle expedient. However, it has
496 * also been discovered that passing some character sets through
497 * the environment has "strange" behavior on some variants of
498 * Windows. Hence, maybe the manifest parsing code local to the
499 * launcher should never be enhanced.
500 *
501 * Hence, future work should either:
502 * 1) Correct the local parsing code and verify that the
503 * Main-Class attribute gets properly passed through
504 * all environments,
505 * 2) Remove the vestages of maintaining main_class through
506 * the environment (and remove these comments).
507 *
508 * This method also correctly handles launching existing JavaFX
509 * applications that may or may not have a Main-Class manifest entry.
510 */
511 mainClass = LoadMainClass(env, mode, what);
512 CHECK_EXCEPTION_NULL_LEAVE(mainClass);
513 /*
514 * In some cases when launching an application that needs a helper, e.g., a
515 * JavaFX application with no main method, the mainClass will not be the
516 * applications own main class but rather a helper class. To keep things
517 * consistent in the UI we need to track and report the application main class.
518 */
519 appClass = GetApplicationClass(env);
520 NULL_CHECK_RETURN_VALUE(appClass, -1);
521
522 /* Build platform specific argument array */
523 mainArgs = CreateApplicationArgs(env, argv, argc);
524 CHECK_EXCEPTION_NULL_LEAVE(mainArgs);
525
526 if (dryRun) {
527 ret = 0;
528 LEAVE();
529 }
530
531 /*
532 * PostJVMInit uses the class name as the application name for GUI purposes,
533 * for example, on OSX this sets the application name in the menu bar for
534 * both SWT and JavaFX. So we'll pass the actual application class here
535 * instead of mainClass as that may be a launcher or helper class instead
536 * of the application class.
537 */
538 PostJVMInit(env, appClass, vm);
539 CHECK_EXCEPTION_LEAVE(1);
540
541 /*
542 * The LoadMainClass not only loads the main class, it will also ensure
543 * that the main method's signature is correct, therefore further checking
544 * is not required. The main method is invoked here so that extraneous java
545 * stacks are not in the application stack trace.
546 */
547 mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
548 "([Ljava/lang/String;)V");
549 CHECK_EXCEPTION_NULL_LEAVE(mainID);
550
551 /* Invoke main method. */
552 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs);
553
554 /*
555 * The launcher's exit code (in the absence of calls to
556 * System.exit) will be non-zero if main threw an exception.
557 */
558 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1;
559
560 LEAVE();
561 }
562
563 /*
564 * Test if the given name is one of the class path options.
565 */
566 static jboolean
567 IsClassPathOption(const char* name) {
568 return JLI_StrCmp(name, "-classpath") == 0 ||
569 JLI_StrCmp(name, "-cp") == 0 ||
570 JLI_StrCmp(name, "--class-path") == 0;
571 }
572
573 /*
574 * Test if the given name is a launcher option taking the main entry point.
575 */
576 static jboolean
577 IsLauncherMainOption(const char* name) {
578 return JLI_StrCmp(name, "--module") == 0 ||
579 JLI_StrCmp(name, "-m") == 0;
580 }
581
582 /*
583 * Test if the given name is a white-space launcher option.
584 */
585 static jboolean
586 IsLauncherOption(const char* name) {
587 return IsClassPathOption(name) ||
588 IsLauncherMainOption(name) ||
589 JLI_StrCmp(name, "--describe-module") == 0 ||
590 JLI_StrCmp(name, "-d") == 0 ||
591 JLI_StrCmp(name, "--source") == 0;
592 }
593
594 /*
595 * Test if the given name is a module-system white-space option that
596 * will be passed to the VM with its corresponding long-form option
597 * name and "=" delimiter.
598 */
599 static jboolean
600 IsModuleOption(const char* name) {
601 return JLI_StrCmp(name, "--module-path") == 0 ||
602 JLI_StrCmp(name, "-p") == 0 ||
603 JLI_StrCmp(name, "--upgrade-module-path") == 0 ||
604 JLI_StrCmp(name, "--add-modules") == 0 ||
605 JLI_StrCmp(name, "--limit-modules") == 0 ||
606 JLI_StrCmp(name, "--add-exports") == 0 ||
607 JLI_StrCmp(name, "--add-opens") == 0 ||
608 JLI_StrCmp(name, "--add-reads") == 0 ||
609 JLI_StrCmp(name, "--patch-module") == 0;
610 }
611
612 static jboolean
613 IsLongFormModuleOption(const char* name) {
614 return JLI_StrCCmp(name, "--module-path=") == 0 ||
615 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 ||
616 JLI_StrCCmp(name, "--add-modules=") == 0 ||
617 JLI_StrCCmp(name, "--limit-modules=") == 0 ||
618 JLI_StrCCmp(name, "--add-exports=") == 0 ||
619 JLI_StrCCmp(name, "--add-reads=") == 0 ||
620 JLI_StrCCmp(name, "--patch-module=") == 0;
621 }
622
623 /*
624 * Test if the given name has a white space option.
625 */
626 jboolean
627 IsWhiteSpaceOption(const char* name) {
628 return IsModuleOption(name) ||
629 IsLauncherOption(name);
630 }
631
632 /*
633 * Check if it is OK to set the mode.
634 * If the mode was previously set, and should not be changed,
635 * a fatal error is reported.
636 */
637 static int
638 checkMode(int mode, int newMode, const char *arg) {
639 if (mode == LM_SOURCE) {
640 JLI_ReportErrorMessage(ARG_ERROR14, arg);
641 exit(1);
642 }
643 return newMode;
644 }
645
646 /*
647 * Test if an arg identifies a source file.
648 */
649 jboolean
650 IsSourceFile(const char *arg) {
651 struct stat st;
652 return (JLI_HasSuffix(arg, ".java") && stat(arg, &st) == 0);
653 }
654
655 /*
656 * Checks the command line options to find which JVM type was
657 * specified. If no command line option was given for the JVM type,
658 * the default type is used. The environment variable
659 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also
660 * checked as ways of specifying which JVM type to invoke.
661 */
662 char *
663 CheckJvmType(int *pargc, char ***argv, jboolean speculative) {
664 int i, argi;
665 int argc;
666 char **newArgv;
667 int newArgvIdx = 0;
668 int isVMType;
669 int jvmidx = -1;
670 char *jvmtype = getenv("JDK_ALTERNATE_VM");
671
672 argc = *pargc;
673
674 /* To make things simpler we always copy the argv array */
675 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *));
676
677 /* The program name is always present */
678 newArgv[newArgvIdx++] = (*argv)[0];
679
680 for (argi = 1; argi < argc; argi++) {
681 char *arg = (*argv)[argi];
682 isVMType = 0;
683
684 if (IsJavaArgs()) {
685 if (arg[0] != '-') {
686 newArgv[newArgvIdx++] = arg;
687 continue;
688 }
689 } else {
690 if (IsWhiteSpaceOption(arg)) {
691 newArgv[newArgvIdx++] = arg;
692 argi++;
693 if (argi < argc) {
694 newArgv[newArgvIdx++] = (*argv)[argi];
695 }
696 continue;
697 }
698 if (arg[0] != '-') break;
699 }
700
701 /* Did the user pass an explicit VM type? */
702 i = KnownVMIndex(arg);
703 if (i >= 0) {
704 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */
705 isVMType = 1;
706 *pargc = *pargc - 1;
707 }
708
709 /* Did the user specify an "alternate" VM? */
710 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) {
711 isVMType = 1;
712 jvmtype = arg+((arg[1]=='X')? 10 : 12);
713 jvmidx = -1;
714 }
715
716 if (!isVMType) {
717 newArgv[newArgvIdx++] = arg;
718 }
719 }
720
721 /*
722 * Finish copying the arguments if we aborted the above loop.
723 * NOTE that if we aborted via "break" then we did NOT copy the
724 * last argument above, and in addition argi will be less than
725 * argc.
726 */
727 while (argi < argc) {
728 newArgv[newArgvIdx++] = (*argv)[argi];
729 argi++;
730 }
731
732 /* argv is null-terminated */
733 newArgv[newArgvIdx] = 0;
734
735 /* Copy back argv */
736 *argv = newArgv;
737 *pargc = newArgvIdx;
738
739 /* use the default VM type if not specified (no alias processing) */
740 if (jvmtype == NULL) {
741 char* result = knownVMs[0].name+1;
742 JLI_TraceLauncher("Default VM: %s\n", result);
743 return result;
744 }
745
746 /* if using an alternate VM, no alias processing */
747 if (jvmidx < 0)
748 return jvmtype;
749
750 /* Resolve aliases first */
751 {
752 int loopCount = 0;
753 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) {
754 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias);
755
756 if (loopCount > knownVMsCount) {
757 if (!speculative) {
758 JLI_ReportErrorMessage(CFG_ERROR1);
759 exit(1);
760 } else {
761 return "ERROR";
762 /* break; */
763 }
764 }
765
766 if (nextIdx < 0) {
767 if (!speculative) {
768 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias);
769 exit(1);
770 } else {
771 return "ERROR";
772 }
773 }
774 jvmidx = nextIdx;
775 jvmtype = knownVMs[jvmidx].name+1;
776 loopCount++;
777 }
778 }
779
780 switch (knownVMs[jvmidx].flag) {
781 case VM_WARN:
782 if (!speculative) {
783 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1);
784 }
785 /* fall through */
786 case VM_IGNORE:
787 jvmtype = knownVMs[jvmidx=0].name + 1;
788 /* fall through */
789 case VM_KNOWN:
790 break;
791 case VM_ERROR:
792 if (!speculative) {
793 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype);
794 exit(1);
795 } else {
796 return "ERROR";
797 }
798 }
799
800 return jvmtype;
801 }
802
803 /*
804 * This method must be called before the VM is loaded, primarily
805 * used to parse and set any VM related options or env variables.
806 * This function is non-destructive leaving the argument list intact.
807 */
808 static void
809 SetJvmEnvironment(int argc, char **argv) {
810
811 static const char* NMT_Env_Name = "NMT_LEVEL_";
812 int i;
813 /* process only the launcher arguments */
814 for (i = 0; i < argc; i++) {
815 char *arg = argv[i];
816 /*
817 * Since this must be a VM flag we stop processing once we see
818 * an argument the launcher would not have processed beyond (such
819 * as -version or -h), or an argument that indicates the following
820 * arguments are for the application (i.e. the main class name, or
821 * the -jar argument).
822 */
823 if (i > 0) {
824 char *prev = argv[i - 1];
825 // skip non-dash arg preceded by class path specifiers
826 if (*arg != '-' && IsWhiteSpaceOption(prev)) {
827 continue;
828 }
829
830 if (*arg != '-' || isTerminalOpt(arg)) {
831 return;
832 }
833 }
834 /*
835 * The following case checks for "-XX:NativeMemoryTracking=value".
836 * If value is non null, an environmental variable set to this value
837 * will be created to be used by the JVM.
838 * The argument is passed to the JVM, which will check validity.
839 * The JVM is responsible for removing the env variable.
840 */
841 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) {
842 int retval;
843 // get what follows this parameter, include "="
844 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking=");
845 if (JLI_StrLen(arg) > pnlen) {
846 char* value = arg + pnlen;
847 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits
848
849 /*
850 * ensures that malloc successful
851 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call
852 * that could store the address.
853 */
854 char * pbuf = (char*)JLI_MemAlloc(pbuflen);
855
856 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value);
857 retval = JLI_PutEnv(pbuf);
858 if (JLI_IsTraceLauncher()) {
859 char* envName;
860 char* envBuf;
861
862 // ensures that malloc successful
863 envName = (char*)JLI_MemAlloc(pbuflen);
864 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid());
865
866 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName);
867 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf);
868 envBuf = getenv(envName);
869 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf);
870 free(envName);
871 }
872 }
873 }
874 }
875 }
876
877 /* copied from HotSpot function "atomll()" */
878 static int
879 parse_size(const char *s, jlong *result) {
880 jlong n = 0;
881 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n);
882 if (args_read != 1) {
883 return 0;
884 }
885 while (*s != '\0' && *s >= '0' && *s <= '9') {
886 s++;
887 }
888 // 4705540: illegal if more characters are found after the first non-digit
889 if (JLI_StrLen(s) > 1) {
890 return 0;
891 }
892 switch (*s) {
893 case 'T': case 't':
894 *result = n * GB * KB;
895 return 1;
896 case 'G': case 'g':
897 *result = n * GB;
898 return 1;
899 case 'M': case 'm':
900 *result = n * MB;
901 return 1;
902 case 'K': case 'k':
903 *result = n * KB;
904 return 1;
905 case '\0':
906 *result = n;
907 return 1;
908 default:
909 /* Create JVM with default stack and let VM handle malformed -Xss string*/
910 return 0;
911 }
912 }
913
914 /*
915 * Adds a new VM option with the given name and value.
916 */
917 void
918 AddOption(char *str, void *info)
919 {
920 /*
921 * Expand options array if needed to accommodate at least one more
922 * VM option.
923 */
924 if (numOptions >= maxOptions) {
925 if (options == 0) {
926 maxOptions = 4;
927 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
928 } else {
929 JavaVMOption *tmp;
930 maxOptions *= 2;
931 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
932 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
933 JLI_MemFree(options);
934 options = tmp;
935 }
936 }
937 options[numOptions].optionString = str;
938 options[numOptions++].extraInfo = info;
939
940 /*
941 * -Xss is used both by the JVM and here to establish the stack size of the thread
942 * created to launch the JVM. In the latter case we need to ensure we don't go
943 * below the minimum stack size allowed. If -Xss is zero that tells the JVM to use
944 * 'default' sizes (either from JVM or system configuration, e.g. 'ulimit -s' on linux),
945 * and is not itself a small stack size that will be rejected. So we ignore -Xss0 here.
946 */
947 if (JLI_StrCCmp(str, "-Xss") == 0) {
948 jlong tmp;
949 if (parse_size(str + 4, &tmp)) {
950 threadStackSize = tmp;
951 if (threadStackSize > 0 && threadStackSize < (jlong)STACK_SIZE_MINIMUM) {
952 threadStackSize = STACK_SIZE_MINIMUM;
953 }
954 }
955 }
956
957 if (JLI_StrCCmp(str, "-Xmx") == 0) {
958 jlong tmp;
959 if (parse_size(str + 4, &tmp)) {
960 maxHeapSize = tmp;
961 }
962 }
963
964 if (JLI_StrCCmp(str, "-Xms") == 0) {
965 jlong tmp;
966 if (parse_size(str + 4, &tmp)) {
967 initialHeapSize = tmp;
968 }
969 }
970 }
971
972 static void
973 SetClassPath(const char *s)
974 {
975 char *def;
976 const char *orig = s;
977 static const char format[] = "-Djava.class.path=%s";
978 /*
979 * usually we should not get a null pointer, but there are cases where
980 * we might just get one, in which case we simply ignore it, and let the
981 * caller deal with it
982 */
983 if (s == NULL)
984 return;
985 s = JLI_WildcardExpandClasspath(s);
986 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s))
987 // s is became corrupted after expanding wildcards
988 return;
989 def = JLI_MemAlloc(sizeof(format)
990 - 2 /* strlen("%s") */
991 + JLI_StrLen(s));
992 sprintf(def, format, s);
993 AddOption(def, NULL);
994 if (s != orig)
995 JLI_MemFree((char *) s);
996 _have_classpath = JNI_TRUE;
997 }
998
999 static void
1000 AddLongFormOption(const char *option, const char *arg)
1001 {
1002 static const char format[] = "%s=%s";
1003 char *def;
1004 size_t def_len;
1005
1006 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1;
1007 def = JLI_MemAlloc(def_len);
1008 JLI_Snprintf(def, def_len, format, option, arg);
1009 AddOption(def, NULL);
1010 }
1011
1012 static void
1013 SetMainModule(const char *s)
1014 {
1015 static const char format[] = "-Djdk.module.main=%s";
1016 char* slash = JLI_StrChr(s, '/');
1017 size_t s_len, def_len;
1018 char *def;
1019
1020 /* value may be <module> or <module>/<mainclass> */
1021 if (slash == NULL) {
1022 s_len = JLI_StrLen(s);
1023 } else {
1024 s_len = (size_t) (slash - s);
1025 }
1026 def_len = sizeof(format)
1027 - 2 /* strlen("%s") */
1028 + s_len;
1029 def = JLI_MemAlloc(def_len);
1030 JLI_Snprintf(def, def_len, format, s);
1031 AddOption(def, NULL);
1032 }
1033
1034 /*
1035 * The SelectVersion() routine ensures that an appropriate version of
1036 * the JRE is running. The specification for the appropriate version
1037 * is obtained from either the manifest of a jar file (preferred) or
1038 * from command line options.
1039 * The routine also parses splash screen command line options and
1040 * passes on their values in private environment variables.
1041 */
1042 static void
1043 SelectVersion(int argc, char **argv, char **main_class)
1044 {
1045 char *arg;
1046 char *operand;
1047 char *version = NULL;
1048 char *jre = NULL;
1049 int jarflag = 0;
1050 int headlessflag = 0;
1051 int restrict_search = -1; /* -1 implies not known */
1052 manifest_info info;
1053 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "=";
1054 char *splash_file_name = NULL;
1055 char *splash_jar_name = NULL;
1056 char *env_in;
1057 int res;
1058 jboolean has_arg;
1059
1060 /*
1061 * If the version has already been selected, set *main_class
1062 * with the value passed through the environment (if any) and
1063 * simply return.
1064 */
1065
1066 /*
1067 * This environmental variable can be set by mJRE capable JREs
1068 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been
1069 * stripped by those JREs. This environmental variable allows 1.9+
1070 * JREs to be started by these mJRE capable JREs.
1071 * Note that mJRE directives in the jar manifest file would have been
1072 * ignored for a JRE started by another JRE...
1073 * .. skipped for JRE 1.5 and beyond.
1074 * .. not even checked for pre 1.5.
1075 */
1076 if ((env_in = getenv(ENV_ENTRY)) != NULL) {
1077 if (*env_in != '\0')
1078 *main_class = JLI_StringDup(env_in);
1079 return;
1080 }
1081
1082 /*
1083 * Scan through the arguments for options relevant to multiple JRE
1084 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8.
1085 *
1086 * This capability is no longer available with JRE versions 1.9 and later.
1087 * These command line options are reported as errors.
1088 */
1089
1090 argc--;
1091 argv++;
1092 while ((arg = *argv) != 0 && *arg == '-') {
1093 has_arg = IsOptionWithArgument(argc, argv);
1094 if (JLI_StrCCmp(arg, "-version:") == 0) {
1095 JLI_ReportErrorMessage(SPC_ERROR1);
1096 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) {
1097 JLI_ReportErrorMessage(SPC_ERROR2);
1098 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) {
1099 JLI_ReportErrorMessage(SPC_ERROR2);
1100 } else {
1101 if (JLI_StrCmp(arg, "-jar") == 0)
1102 jarflag = 1;
1103 if (IsWhiteSpaceOption(arg)) {
1104 if (has_arg) {
1105 argc--;
1106 argv++;
1107 arg = *argv;
1108 }
1109 }
1110
1111 /*
1112 * Checking for headless toolkit option in the some way as AWT does:
1113 * "true" means true and any other value means false
1114 */
1115 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) {
1116 headlessflag = 1;
1117 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) {
1118 headlessflag = 0;
1119 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1120 splash_file_name = arg+8;
1121 }
1122 }
1123 argc--;
1124 argv++;
1125 }
1126 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */
1127 operand = NULL;
1128 } else {
1129 argc--;
1130 operand = *argv++;
1131 }
1132
1133 /*
1134 * If there is a jar file, read the manifest. If the jarfile can't be
1135 * read, the manifest can't be read from the jar file, or the manifest
1136 * is corrupt, issue the appropriate error messages and exit.
1137 *
1138 * Even if there isn't a jar file, construct a manifest_info structure
1139 * containing the command line information. It's a convenient way to carry
1140 * this data around.
1141 */
1142 if (jarflag && operand) {
1143 if ((res = JLI_ParseManifest(operand, &info)) != 0) {
1144 if (res == -1)
1145 JLI_ReportErrorMessage(JAR_ERROR2, operand);
1146 else
1147 JLI_ReportErrorMessage(JAR_ERROR3, operand);
1148 exit(1);
1149 }
1150
1151 /*
1152 * Command line splash screen option should have precedence
1153 * over the manifest, so the manifest data is used only if
1154 * splash_file_name has not been initialized above during command
1155 * line parsing
1156 */
1157 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) {
1158 splash_file_name = info.splashscreen_image_file_name;
1159 splash_jar_name = operand;
1160 }
1161 } else {
1162 info.manifest_version = NULL;
1163 info.main_class = NULL;
1164 info.jre_version = NULL;
1165 info.jre_restrict_search = 0;
1166 }
1167
1168 /*
1169 * Passing on splash screen info in environment variables
1170 */
1171 if (splash_file_name && !headlessflag) {
1172 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1);
1173 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
1174 JLI_StrCat(splash_file_entry, splash_file_name);
1175 putenv(splash_file_entry);
1176 }
1177 if (splash_jar_name && !headlessflag) {
1178 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1);
1179 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
1180 JLI_StrCat(splash_jar_entry, splash_jar_name);
1181 putenv(splash_jar_entry);
1182 }
1183
1184
1185 /*
1186 * "Valid" returns (other than unrecoverable errors) follow. Set
1187 * main_class as a side-effect of this routine.
1188 */
1189 if (info.main_class != NULL)
1190 *main_class = JLI_StringDup(info.main_class);
1191
1192 if (info.jre_version == NULL) {
1193 JLI_FreeManifest();
1194 return;
1195 }
1196
1197 }
1198
1199 /*
1200 * Test if the current argv is an option, i.e. with a leading `-`
1201 * and followed with an argument without a leading `-`.
1202 */
1203 static jboolean
1204 IsOptionWithArgument(int argc, char** argv) {
1205 char* option;
1206 char* arg;
1207
1208 if (argc <= 1)
1209 return JNI_FALSE;
1210
1211 option = *argv;
1212 arg = *(argv+1);
1213 return *option == '-' && *arg != '-';
1214 }
1215
1216 /*
1217 * Gets the option, and its argument if the option has an argument.
1218 * It will update *pargc, **pargv to the next option.
1219 */
1220 static int
1221 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) {
1222 int argc = *pargc;
1223 char** argv = *pargv;
1224 char* arg = *argv;
1225
1226 char* option = arg;
1227 char* value = NULL;
1228 char* equals = NULL;
1229 int kind = LAUNCHER_OPTION;
1230 jboolean has_arg = JNI_FALSE;
1231
1232 // check if this option may be a white-space option with an argument
1233 has_arg = IsOptionWithArgument(argc, argv);
1234
1235 argv++; --argc;
1236 if (IsLauncherOption(arg)) {
1237 if (has_arg) {
1238 value = *argv;
1239 argv++; --argc;
1240 }
1241 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION
1242 : LAUNCHER_OPTION_WITH_ARGUMENT;
1243 } else if (IsModuleOption(arg)) {
1244 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1245 if (has_arg) {
1246 value = *argv;
1247 argv++; --argc;
1248 }
1249
1250 /*
1251 * Support short form alias
1252 */
1253 if (JLI_StrCmp(arg, "-p") == 0) {
1254 option = "--module-path";
1255 }
1256
1257 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) {
1258 value = equals+1;
1259 if (JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1260 JLI_StrCCmp(arg, "--module=") == 0 ||
1261 JLI_StrCCmp(arg, "--class-path=") == 0||
1262 JLI_StrCCmp(arg, "--source=") == 0) {
1263 kind = LAUNCHER_OPTION_WITH_ARGUMENT;
1264 } else {
1265 kind = VM_LONG_OPTION;
1266 }
1267 }
1268
1269 *pargc = argc;
1270 *pargv = argv;
1271 *poption = option;
1272 *pvalue = value;
1273 return kind;
1274 }
1275
1276 /*
1277 * Parses command line arguments. Returns JNI_FALSE if launcher
1278 * should exit without starting vm, returns JNI_TRUE if vm needs
1279 * to be started to process given options. *pret (the launcher
1280 * process return value) is set to 0 for a normal exit.
1281 */
1282 static jboolean
1283 ParseArguments(int *pargc, char ***pargv,
1284 int *pmode, char **pwhat,
1285 int *pret, const char *jrepath)
1286 {
1287 int argc = *pargc;
1288 char **argv = *pargv;
1289 int mode = LM_UNKNOWN;
1290 char *arg;
1291
1292 *pret = 0;
1293
1294 while ((arg = *argv) != 0 && *arg == '-') {
1295 char *option = NULL;
1296 char *value = NULL;
1297 int kind = GetOpt(&argc, &argv, &option, &value);
1298 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0;
1299 jboolean has_arg_any_len = value != NULL;
1300
1301 /*
1302 * Option to set main entry point
1303 */
1304 if (JLI_StrCmp(arg, "-jar") == 0) {
1305 ARG_CHECK(argc, ARG_ERROR2, arg);
1306 mode = checkMode(mode, LM_JAR, arg);
1307 } else if (JLI_StrCmp(arg, "--module") == 0 ||
1308 JLI_StrCCmp(arg, "--module=") == 0 ||
1309 JLI_StrCmp(arg, "-m") == 0) {
1310 REPORT_ERROR (has_arg, ARG_ERROR5, arg);
1311 SetMainModule(value);
1312 mode = checkMode(mode, LM_MODULE, arg);
1313 if (has_arg) {
1314 *pwhat = value;
1315 break;
1316 }
1317 } else if (JLI_StrCmp(arg, "--source") == 0 ||
1318 JLI_StrCCmp(arg, "--source=") == 0) {
1319 REPORT_ERROR (has_arg, ARG_ERROR13, arg);
1320 mode = LM_SOURCE;
1321 if (has_arg) {
1322 const char *prop = "-Djdk.internal.javac.source=";
1323 size_t size = JLI_StrLen(prop) + JLI_StrLen(value) + 1;
1324 char *propValue = (char *)JLI_MemAlloc(size);
1325 JLI_Snprintf(propValue, size, "%s%s", prop, value);
1326 AddOption(propValue, NULL);
1327 }
1328 } else if (JLI_StrCmp(arg, "--class-path") == 0 ||
1329 JLI_StrCCmp(arg, "--class-path=") == 0 ||
1330 JLI_StrCmp(arg, "-classpath") == 0 ||
1331 JLI_StrCmp(arg, "-cp") == 0) {
1332 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg);
1333 SetClassPath(value);
1334 if (mode != LM_SOURCE) {
1335 mode = LM_CLASS;
1336 }
1337 } else if (JLI_StrCmp(arg, "--list-modules") == 0) {
1338 listModules = JNI_TRUE;
1339 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) {
1340 showResolvedModules = JNI_TRUE;
1341 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) {
1342 AddOption("-Djdk.module.validation=true", NULL);
1343 validateModules = JNI_TRUE;
1344 } else if (JLI_StrCmp(arg, "--describe-module") == 0 ||
1345 JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1346 JLI_StrCmp(arg, "-d") == 0) {
1347 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg);
1348 describeModule = value;
1349 /*
1350 * Parse white-space options
1351 */
1352 } else if (has_arg) {
1353 if (kind == VM_LONG_OPTION) {
1354 AddOption(option, NULL);
1355 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) {
1356 AddLongFormOption(option, value);
1357 }
1358 /*
1359 * Error missing argument
1360 */
1361 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 ||
1362 JLI_StrCmp(arg, "-p") == 0 ||
1363 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) {
1364 REPORT_ERROR (has_arg, ARG_ERROR4, arg);
1365
1366 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) {
1367 REPORT_ERROR (has_arg, ARG_ERROR6, arg);
1368 /*
1369 * The following cases will cause the argument parsing to stop
1370 */
1371 } else if (JLI_StrCmp(arg, "-help") == 0 ||
1372 JLI_StrCmp(arg, "-h") == 0 ||
1373 JLI_StrCmp(arg, "-?") == 0) {
1374 printUsage = JNI_TRUE;
1375 return JNI_TRUE;
1376 } else if (JLI_StrCmp(arg, "--help") == 0) {
1377 printUsage = JNI_TRUE;
1378 printTo = USE_STDOUT;
1379 return JNI_TRUE;
1380 } else if (JLI_StrCmp(arg, "-version") == 0) {
1381 printVersion = JNI_TRUE;
1382 return JNI_TRUE;
1383 } else if (JLI_StrCmp(arg, "--version") == 0) {
1384 printVersion = JNI_TRUE;
1385 printTo = USE_STDOUT;
1386 return JNI_TRUE;
1387 } else if (JLI_StrCmp(arg, "-showversion") == 0) {
1388 showVersion = JNI_TRUE;
1389 } else if (JLI_StrCmp(arg, "--show-version") == 0) {
1390 showVersion = JNI_TRUE;
1391 printTo = USE_STDOUT;
1392 } else if (JLI_StrCmp(arg, "--dry-run") == 0) {
1393 dryRun = JNI_TRUE;
1394 } else if (JLI_StrCmp(arg, "-X") == 0) {
1395 printXUsage = JNI_TRUE;
1396 return JNI_TRUE;
1397 } else if (JLI_StrCmp(arg, "--help-extra") == 0) {
1398 printXUsage = JNI_TRUE;
1399 printTo = USE_STDOUT;
1400 return JNI_TRUE;
1401 /*
1402 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT.
1403 * In the latter case, any SUBOPT value not recognized will default to "all"
1404 */
1405 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 ||
1406 JLI_StrCCmp(arg, "-XshowSettings:") == 0) {
1407 showSettings = arg;
1408 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) {
1409 AddOption("-Dsun.java.launcher.diag=true", NULL);
1410 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) {
1411 AddOption("-Djdk.module.showModuleResolution=true", NULL);
1412 /*
1413 * The following case provide backward compatibility with old-style
1414 * command line options.
1415 */
1416 } else if (JLI_StrCmp(arg, "-fullversion") == 0) {
1417 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion());
1418 return JNI_FALSE;
1419 } else if (JLI_StrCmp(arg, "--full-version") == 0) {
1420 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion());
1421 return JNI_FALSE;
1422 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) {
1423 AddOption("-verbose:gc", NULL);
1424 } else if (JLI_StrCmp(arg, "-t") == 0) {
1425 AddOption("-Xt", NULL);
1426 } else if (JLI_StrCmp(arg, "-tm") == 0) {
1427 AddOption("-Xtm", NULL);
1428 } else if (JLI_StrCmp(arg, "-debug") == 0) {
1429 AddOption("-Xdebug", NULL);
1430 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) {
1431 AddOption("-Xnoclassgc", NULL);
1432 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) {
1433 AddOption("-Xverify:all", NULL);
1434 } else if (JLI_StrCmp(arg, "-verify") == 0) {
1435 AddOption("-Xverify:all", NULL);
1436 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) {
1437 AddOption("-Xverify:remote", NULL);
1438 } else if (JLI_StrCmp(arg, "-noverify") == 0) {
1439 AddOption("-Xverify:none", NULL);
1440 } else if (JLI_StrCCmp(arg, "-ss") == 0 ||
1441 JLI_StrCCmp(arg, "-oss") == 0 ||
1442 JLI_StrCCmp(arg, "-ms") == 0 ||
1443 JLI_StrCCmp(arg, "-mx") == 0) {
1444 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6);
1445 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */
1446 AddOption(tmp, NULL);
1447 } else if (JLI_StrCmp(arg, "-checksource") == 0 ||
1448 JLI_StrCmp(arg, "-cs") == 0 ||
1449 JLI_StrCmp(arg, "-noasyncgc") == 0) {
1450 /* No longer supported */
1451 JLI_ReportErrorMessage(ARG_WARN, arg);
1452 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1453 ; /* Ignore machine independent options already handled */
1454 } else if (ProcessPlatformOption(arg)) {
1455 ; /* Processing of platform dependent options */
1456 } else {
1457 /* java.class.path set on the command line */
1458 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) {
1459 _have_classpath = JNI_TRUE;
1460 }
1461 AddOption(arg, NULL);
1462 }
1463 }
1464
1465 if (*pwhat == NULL && --argc >= 0) {
1466 *pwhat = *argv++;
1467 }
1468
1469 if (*pwhat == NULL) {
1470 /* LM_UNKNOWN okay for options that exit */
1471 if (!listModules && !describeModule && !validateModules) {
1472 *pret = 1;
1473 }
1474 } else if (mode == LM_UNKNOWN) {
1475 /* default to LM_CLASS if -m, -jar and -cp options are
1476 * not specified */
1477 if (!_have_classpath) {
1478 SetClassPath(".");
1479 }
1480 mode = IsSourceFile(arg) ? LM_SOURCE : LM_CLASS;
1481 } else if (mode == LM_CLASS && IsSourceFile(arg)) {
1482 /* override LM_CLASS mode if given a source file */
1483 mode = LM_SOURCE;
1484 }
1485
1486 if (mode == LM_SOURCE) {
1487 AddOption("--add-modules=ALL-DEFAULT", NULL);
1488 *pwhat = SOURCE_LAUNCHER_MAIN_ENTRY;
1489 // adjust (argc, argv) so that the name of the source file
1490 // is included in the args passed to the source launcher
1491 // main entry class
1492 *pargc = argc + 1;
1493 *pargv = argv - 1;
1494 } else {
1495 if (argc >= 0) {
1496 *pargc = argc;
1497 *pargv = argv;
1498 }
1499 }
1500
1501 *pmode = mode;
1502
1503 return JNI_TRUE;
1504 }
1505
1506 /*
1507 * Initializes the Java Virtual Machine. Also frees options array when
1508 * finished.
1509 */
1510 static jboolean
1511 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1512 {
1513 JavaVMInitArgs args;
1514 jint r;
1515
1516 memset(&args, 0, sizeof(args));
1517 args.version = JNI_VERSION_1_2;
1518 args.nOptions = numOptions;
1519 args.options = options;
1520 args.ignoreUnrecognized = JNI_FALSE;
1521
1522 if (JLI_IsTraceLauncher()) {
1523 int i = 0;
1524 printf("JavaVM args:\n ");
1525 printf("version 0x%08lx, ", (long)args.version);
1526 printf("ignoreUnrecognized is %s, ",
1527 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1528 printf("nOptions is %ld\n", (long)args.nOptions);
1529 for (i = 0; i < numOptions; i++)
1530 printf(" option[%2d] = '%s'\n",
1531 i, args.options[i].optionString);
1532 }
1533
1534 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1535 JLI_MemFree(options);
1536 return r == JNI_OK;
1537 }
1538
1539 static jclass helperClass = NULL;
1540
1541 jclass
1542 GetLauncherHelperClass(JNIEnv *env)
1543 {
1544 if (helperClass == NULL) {
1545 NULL_CHECK0(helperClass = FindBootStrapClass(env,
1546 "sun/launcher/LauncherHelper"));
1547 }
1548 return helperClass;
1549 }
1550
1551 static jmethodID makePlatformStringMID = NULL;
1552 /*
1553 * Returns a new Java string object for the specified platform string.
1554 */
1555 static jstring
1556 NewPlatformString(JNIEnv *env, char *s)
1557 {
1558 int len = (int)JLI_StrLen(s);
1559 jbyteArray ary;
1560 jclass cls = GetLauncherHelperClass(env);
1561 NULL_CHECK0(cls);
1562 if (s == NULL)
1563 return 0;
1564
1565 ary = (*env)->NewByteArray(env, len);
1566 if (ary != 0) {
1567 jstring str = 0;
1568 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1569 if (!(*env)->ExceptionOccurred(env)) {
1570 if (makePlatformStringMID == NULL) {
1571 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env,
1572 cls, "makePlatformString", "(Z[B)Ljava/lang/String;"));
1573 }
1574 str = (*env)->CallStaticObjectMethod(env, cls,
1575 makePlatformStringMID, USE_STDERR, ary);
1576 CHECK_EXCEPTION_RETURN_VALUE(0);
1577 (*env)->DeleteLocalRef(env, ary);
1578 return str;
1579 }
1580 }
1581 return 0;
1582 }
1583
1584 /*
1585 * Returns a new array of Java string objects for the specified
1586 * array of platform strings.
1587 */
1588 jobjectArray
1589 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1590 {
1591 jarray cls;
1592 jarray ary;
1593 int i;
1594
1595 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String"));
1596 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1597 CHECK_EXCEPTION_RETURN_VALUE(0);
1598 for (i = 0; i < strc; i++) {
1599 jstring str = NewPlatformString(env, *strv++);
1600 NULL_CHECK0(str);
1601 (*env)->SetObjectArrayElement(env, ary, i, str);
1602 (*env)->DeleteLocalRef(env, str);
1603 }
1604 return ary;
1605 }
1606
1607 /*
1608 * Loads a class and verifies that the main class is present and it is ok to
1609 * call it for more details refer to the java implementation.
1610 */
1611 static jclass
1612 LoadMainClass(JNIEnv *env, int mode, char *name)
1613 {
1614 jmethodID mid;
1615 jstring str;
1616 jobject result;
1617 jlong start, end;
1618 jclass cls = GetLauncherHelperClass(env);
1619 NULL_CHECK0(cls);
1620 if (JLI_IsTraceLauncher()) {
1621 start = CounterGet();
1622 }
1623 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1624 "checkAndLoadMain",
1625 "(ZILjava/lang/String;)Ljava/lang/Class;"));
1626
1627 NULL_CHECK0(str = NewPlatformString(env, name));
1628 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid,
1629 USE_STDERR, mode, str));
1630
1631 if (JLI_IsTraceLauncher()) {
1632 end = CounterGet();
1633 printf("%ld micro seconds to load main class\n",
1634 (long)(jint)Counter2Micros(end-start));
1635 printf("----%s----\n", JLDEBUG_ENV_ENTRY);
1636 }
1637
1638 return (jclass)result;
1639 }
1640
1641 static jclass
1642 GetApplicationClass(JNIEnv *env)
1643 {
1644 jmethodID mid;
1645 jclass appClass;
1646 jclass cls = GetLauncherHelperClass(env);
1647 NULL_CHECK0(cls);
1648 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1649 "getApplicationClass",
1650 "()Ljava/lang/Class;"));
1651
1652 appClass = (*env)->CallStaticObjectMethod(env, cls, mid);
1653 CHECK_EXCEPTION_RETURN_VALUE(0);
1654 return appClass;
1655 }
1656
1657 static char* expandWildcardOnLongOpt(char* arg) {
1658 char *p, *value;
1659 size_t optLen, valueLen;
1660 p = JLI_StrChr(arg, '=');
1661
1662 if (p == NULL || p[1] == '\0') {
1663 JLI_ReportErrorMessage(ARG_ERROR1, arg);
1664 exit(1);
1665 }
1666 p++;
1667 value = (char *) JLI_WildcardExpandClasspath(p);
1668 if (p == value) {
1669 // no wildcard
1670 return arg;
1671 }
1672
1673 optLen = p - arg;
1674 valueLen = JLI_StrLen(value);
1675 p = JLI_MemAlloc(optLen + valueLen + 1);
1676 memcpy(p, arg, optLen);
1677 memcpy(p + optLen, value, valueLen);
1678 p[optLen + valueLen] = '\0';
1679 return p;
1680 }
1681
1682 /*
1683 * For tools, convert command line args thus:
1684 * javac -cp foo:foo/"*" -J-ms32m ...
1685 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1686 *
1687 * Takes 4 parameters, and returns the populated arguments
1688 */
1689 static void
1690 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv)
1691 {
1692 int argc = *pargc;
1693 char **argv = *pargv;
1694 int nargc = argc + jargc;
1695 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1696 int i;
1697
1698 *pargc = nargc;
1699 *pargv = nargv;
1700
1701 /* Copy the VM arguments (i.e. prefixed with -J) */
1702 for (i = 0; i < jargc; i++) {
1703 const char *arg = jargv[i];
1704 if (arg[0] == '-' && arg[1] == 'J') {
1705 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2);
1706 }
1707 }
1708
1709 for (i = 0; i < argc; i++) {
1710 char *arg = argv[i];
1711 if (arg[0] == '-' && arg[1] == 'J') {
1712 if (arg[2] == '\0') {
1713 JLI_ReportErrorMessage(ARG_ERROR3);
1714 exit(1);
1715 }
1716 *nargv++ = arg + 2;
1717 }
1718 }
1719
1720 /* Copy the rest of the arguments */
1721 for (i = 0; i < jargc ; i++) {
1722 const char *arg = jargv[i];
1723 if (arg[0] != '-' || arg[1] != 'J') {
1724 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg);
1725 }
1726 }
1727 for (i = 0; i < argc; i++) {
1728 char *arg = argv[i];
1729 if (arg[0] == '-') {
1730 if (arg[1] == 'J')
1731 continue;
1732 if (IsWildCardEnabled()) {
1733 if (IsClassPathOption(arg) && i < argc - 1) {
1734 *nargv++ = arg;
1735 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1736 i++;
1737 continue;
1738 }
1739 if (JLI_StrCCmp(arg, "--class-path=") == 0) {
1740 *nargv++ = expandWildcardOnLongOpt(arg);
1741 continue;
1742 }
1743 }
1744 }
1745 *nargv++ = arg;
1746 }
1747 *nargv = 0;
1748 }
1749
1750 /*
1751 * For our tools, we try to add 3 VM options:
1752 * -Denv.class.path=<envcp>
1753 * -Dapplication.home=<apphome>
1754 * -Djava.class.path=<appcp>
1755 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1756 * tells javac where to find binary classes through this environment
1757 * variable. Notice that users will be able to compile against our
1758 * tools classes (sun.tools.javac.Main) only if they explicitly add
1759 * tools.jar to CLASSPATH.
1760 * <apphome> is the directory where the application is installed.
1761 * <appcp> is the classpath to where our apps' classfiles are.
1762 */
1763 static jboolean
1764 AddApplicationOptions(int cpathc, const char **cpathv)
1765 {
1766 char *envcp, *appcp, *apphome;
1767 char home[MAXPATHLEN]; /* application home */
1768 char separator[] = { PATH_SEPARATOR, '\0' };
1769 int size, i;
1770
1771 {
1772 const char *s = getenv("CLASSPATH");
1773 if (s) {
1774 s = (char *) JLI_WildcardExpandClasspath(s);
1775 /* 40 for -Denv.class.path= */
1776 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow
1777 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40);
1778 sprintf(envcp, "-Denv.class.path=%s", s);
1779 AddOption(envcp, NULL);
1780 }
1781 }
1782 }
1783
1784 if (!GetApplicationHome(home, sizeof(home))) {
1785 JLI_ReportErrorMessage(CFG_ERROR5);
1786 return JNI_FALSE;
1787 }
1788
1789 /* 40 for '-Dapplication.home=' */
1790 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40);
1791 sprintf(apphome, "-Dapplication.home=%s", home);
1792 AddOption(apphome, NULL);
1793
1794 /* How big is the application's classpath? */
1795 if (cpathc > 0) {
1796 size = 40; /* 40: "-Djava.class.path=" */
1797 for (i = 0; i < cpathc; i++) {
1798 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */
1799 }
1800 appcp = (char *)JLI_MemAlloc(size + 1);
1801 JLI_StrCpy(appcp, "-Djava.class.path=");
1802 for (i = 0; i < cpathc; i++) {
1803 JLI_StrCat(appcp, home); /* c:\program files\myapp */
1804 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */
1805 JLI_StrCat(appcp, separator); /* ; */
1806 }
1807 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */
1808 AddOption(appcp, NULL);
1809 }
1810 return JNI_TRUE;
1811 }
1812
1813 /*
1814 * inject the -Dsun.java.command pseudo property into the args structure
1815 * this pseudo property is used in the HotSpot VM to expose the
1816 * Java class name and arguments to the main method to the VM. The
1817 * HotSpot VM uses this pseudo property to store the Java class name
1818 * (or jar file name) and the arguments to the class's main method
1819 * to the instrumentation memory region. The sun.java.command pseudo
1820 * property is not exported by HotSpot to the Java layer.
1821 */
1822 void
1823 SetJavaCommandLineProp(char *what, int argc, char **argv)
1824 {
1825
1826 int i = 0;
1827 size_t len = 0;
1828 char* javaCommand = NULL;
1829 char* dashDstr = "-Dsun.java.command=";
1830
1831 if (what == NULL) {
1832 /* unexpected, one of these should be set. just return without
1833 * setting the property
1834 */
1835 return;
1836 }
1837
1838 /* determine the amount of memory to allocate assuming
1839 * the individual components will be space separated
1840 */
1841 len = JLI_StrLen(what);
1842 for (i = 0; i < argc; i++) {
1843 len += JLI_StrLen(argv[i]) + 1;
1844 }
1845
1846 /* allocate the memory */
1847 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1);
1848
1849 /* build the -D string */
1850 *javaCommand = '\0';
1851 JLI_StrCat(javaCommand, dashDstr);
1852 JLI_StrCat(javaCommand, what);
1853
1854 for (i = 0; i < argc; i++) {
1855 /* the components of the string are space separated. In
1856 * the case of embedded white space, the relationship of
1857 * the white space separated components to their true
1858 * positional arguments will be ambiguous. This issue may
1859 * be addressed in a future release.
1860 */
1861 JLI_StrCat(javaCommand, " ");
1862 JLI_StrCat(javaCommand, argv[i]);
1863 }
1864
1865 AddOption(javaCommand, NULL);
1866 }
1867
1868 /*
1869 * JVM would like to know if it's created by a standard Sun launcher, or by
1870 * user native application, the following property indicates the former.
1871 */
1872 void
1873 SetJavaLauncherProp() {
1874 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL);
1875 }
1876
1877 /*
1878 * Prints the version information from the java.version and other properties.
1879 */
1880 static void
1881 PrintJavaVersion(JNIEnv *env, jboolean extraLF)
1882 {
1883 jclass ver;
1884 jmethodID print;
1885
1886 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps"));
1887 NULL_CHECK(print = (*env)->GetStaticMethodID(env,
1888 ver,
1889 (extraLF == JNI_TRUE) ? "println" : "print",
1890 "(Z)V"
1891 )
1892 );
1893
1894 (*env)->CallStaticVoidMethod(env, ver, print, printTo);
1895 }
1896
1897 /*
1898 * Prints all the Java settings, see the java implementation for more details.
1899 */
1900 static void
1901 ShowSettings(JNIEnv *env, char *optString)
1902 {
1903 jmethodID showSettingsID;
1904 jstring joptString;
1905 jclass cls = GetLauncherHelperClass(env);
1906 NULL_CHECK(cls);
1907 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls,
1908 "showSettings", "(ZLjava/lang/String;JJJ)V"));
1909 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1910 (*env)->CallStaticVoidMethod(env, cls, showSettingsID,
1911 USE_STDERR,
1912 joptString,
1913 (jlong)initialHeapSize,
1914 (jlong)maxHeapSize,
1915 (jlong)threadStackSize);
1916 }
1917
1918 /**
1919 * Show resolved modules
1920 */
1921 static void
1922 ShowResolvedModules(JNIEnv *env)
1923 {
1924 jmethodID showResolvedModulesID;
1925 jclass cls = GetLauncherHelperClass(env);
1926 NULL_CHECK(cls);
1927 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls,
1928 "showResolvedModules", "()V"));
1929 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID);
1930 }
1931
1932 /**
1933 * List observable modules
1934 */
1935 static void
1936 ListModules(JNIEnv *env)
1937 {
1938 jmethodID listModulesID;
1939 jclass cls = GetLauncherHelperClass(env);
1940 NULL_CHECK(cls);
1941 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls,
1942 "listModules", "()V"));
1943 (*env)->CallStaticVoidMethod(env, cls, listModulesID);
1944 }
1945
1946 /**
1947 * Describe a module
1948 */
1949 static void
1950 DescribeModule(JNIEnv *env, char *optString)
1951 {
1952 jmethodID describeModuleID;
1953 jstring joptString = NULL;
1954 jclass cls = GetLauncherHelperClass(env);
1955 NULL_CHECK(cls);
1956 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls,
1957 "describeModule", "(Ljava/lang/String;)V"));
1958 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1959 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString);
1960 }
1961
1962 /*
1963 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java
1964 */
1965 static void
1966 PrintUsage(JNIEnv* env, jboolean doXUsage)
1967 {
1968 jmethodID initHelp, vmSelect, vmSynonym, printHelp, printXUsageMessage;
1969 jstring jprogname, vm1, vm2;
1970 int i;
1971 jclass cls = GetLauncherHelperClass(env);
1972 NULL_CHECK(cls);
1973 if (doXUsage) {
1974 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls,
1975 "printXUsageMessage", "(Z)V"));
1976 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo);
1977 } else {
1978 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls,
1979 "initHelpMessage", "(Ljava/lang/String;)V"));
1980
1981 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage",
1982 "(Ljava/lang/String;Ljava/lang/String;)V"));
1983
1984 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls,
1985 "appendVmSynonymMessage",
1986 "(Ljava/lang/String;Ljava/lang/String;)V"));
1987
1988 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls,
1989 "printHelpMessage", "(Z)V"));
1990
1991 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name));
1992
1993 /* Initialize the usage message with the usual preamble */
1994 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname);
1995 CHECK_EXCEPTION_RETURN();
1996
1997
1998 /* Assemble the other variant part of the usage */
1999 for (i=1; i<knownVMsCount; i++) {
2000 if (knownVMs[i].flag == VM_KNOWN) {
2001 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
2002 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1));
2003 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
2004 CHECK_EXCEPTION_RETURN();
2005 }
2006 }
2007 for (i=1; i<knownVMsCount; i++) {
2008 if (knownVMs[i].flag == VM_ALIASED_TO) {
2009 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
2010 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1));
2011 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2);
2012 CHECK_EXCEPTION_RETURN();
2013 }
2014 }
2015
2016 /* Complete the usage message and print to stderr*/
2017 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo);
2018 }
2019 return;
2020 }
2021
2022 /*
2023 * Read the jvm.cfg file and fill the knownJVMs[] array.
2024 *
2025 * The functionality of the jvm.cfg file is subject to change without
2026 * notice and the mechanism will be removed in the future.
2027 *
2028 * The lexical structure of the jvm.cfg file is as follows:
2029 *
2030 * jvmcfg := { vmLine }
2031 * vmLine := knownLine
2032 * | aliasLine
2033 * | warnLine
2034 * | ignoreLine
2035 * | errorLine
2036 * | predicateLine
2037 * | commentLine
2038 * knownLine := flag "KNOWN" EOL
2039 * warnLine := flag "WARN" EOL
2040 * ignoreLine := flag "IGNORE" EOL
2041 * errorLine := flag "ERROR" EOL
2042 * aliasLine := flag "ALIASED_TO" flag EOL
2043 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
2044 * commentLine := "#" text EOL
2045 * flag := "-" identifier
2046 *
2047 * The semantics are that when someone specifies a flag on the command line:
2048 * - if the flag appears on a knownLine, then the identifier is used as
2049 * the name of the directory holding the JVM library (the name of the JVM).
2050 * - if the flag appears as the first flag on an aliasLine, the identifier
2051 * of the second flag is used as the name of the JVM.
2052 * - if the flag appears on a warnLine, the identifier is used as the
2053 * name of the JVM, but a warning is generated.
2054 * - if the flag appears on an ignoreLine, the identifier is recognized as the
2055 * name of a JVM, but the identifier is ignored and the default vm used
2056 * - if the flag appears on an errorLine, an error is generated.
2057 * - if the flag appears as the first flag on a predicateLine, and
2058 * the machine on which you are running passes the predicate indicated,
2059 * then the identifier of the second flag is used as the name of the JVM,
2060 * otherwise the identifier of the first flag is used as the name of the JVM.
2061 * If no flag is given on the command line, the first vmLine of the jvm.cfg
2062 * file determines the name of the JVM.
2063 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
2064 * since they only make sense if someone hasn't specified the name of the
2065 * JVM on the command line.
2066 *
2067 * The intent of the jvm.cfg file is to allow several JVM libraries to
2068 * be installed in different subdirectories of a single JRE installation,
2069 * for space-savings and convenience in testing.
2070 * The intent is explicitly not to provide a full aliasing or predicate
2071 * mechanism.
2072 */
2073 jint
2074 ReadKnownVMs(const char *jvmCfgName, jboolean speculative)
2075 {
2076 FILE *jvmCfg;
2077 char line[MAXPATHLEN+20];
2078 int cnt = 0;
2079 int lineno = 0;
2080 jlong start, end;
2081 int vmType;
2082 char *tmpPtr;
2083 char *altVMName = NULL;
2084 char *serverClassVMName = NULL;
2085 static char *whiteSpace = " \t";
2086 if (JLI_IsTraceLauncher()) {
2087 start = CounterGet();
2088 }
2089
2090 jvmCfg = fopen(jvmCfgName, "r");
2091 if (jvmCfg == NULL) {
2092 if (!speculative) {
2093 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName);
2094 exit(1);
2095 } else {
2096 return -1;
2097 }
2098 }
2099 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
2100 vmType = VM_UNKNOWN;
2101 lineno++;
2102 if (line[0] == '#')
2103 continue;
2104 if (line[0] != '-') {
2105 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName);
2106 }
2107 if (cnt >= knownVMsLimit) {
2108 GrowKnownVMs(cnt);
2109 }
2110 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */
2111 tmpPtr = line + JLI_StrCSpn(line, whiteSpace);
2112 if (*tmpPtr == 0) {
2113 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2114 } else {
2115 /* Null-terminate this string for JLI_StringDup below */
2116 *tmpPtr++ = 0;
2117 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2118 if (*tmpPtr == 0) {
2119 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2120 } else {
2121 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) {
2122 vmType = VM_KNOWN;
2123 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) {
2124 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2125 if (*tmpPtr != 0) {
2126 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2127 }
2128 if (*tmpPtr == 0) {
2129 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2130 } else {
2131 /* Null terminate altVMName */
2132 altVMName = tmpPtr;
2133 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2134 *tmpPtr = 0;
2135 vmType = VM_ALIASED_TO;
2136 }
2137 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) {
2138 vmType = VM_WARN;
2139 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) {
2140 vmType = VM_IGNORE;
2141 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) {
2142 vmType = VM_ERROR;
2143 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) {
2144 /* ignored */
2145 } else {
2146 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]);
2147 vmType = VM_KNOWN;
2148 }
2149 }
2150 }
2151
2152 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line);
2153 if (vmType != VM_UNKNOWN) {
2154 knownVMs[cnt].name = JLI_StringDup(line);
2155 knownVMs[cnt].flag = vmType;
2156 switch (vmType) {
2157 default:
2158 break;
2159 case VM_ALIASED_TO:
2160 knownVMs[cnt].alias = JLI_StringDup(altVMName);
2161 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n",
2162 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
2163 break;
2164 }
2165 cnt++;
2166 }
2167 }
2168 fclose(jvmCfg);
2169 knownVMsCount = cnt;
2170
2171 if (JLI_IsTraceLauncher()) {
2172 end = CounterGet();
2173 printf("%ld micro seconds to parse jvm.cfg\n",
2174 (long)(jint)Counter2Micros(end-start));
2175 }
2176
2177 return cnt;
2178 }
2179
2180
2181 static void
2182 GrowKnownVMs(int minimum)
2183 {
2184 struct vmdesc* newKnownVMs;
2185 int newMax;
2186
2187 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
2188 if (newMax <= minimum) {
2189 newMax = minimum;
2190 }
2191 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
2192 if (knownVMs != NULL) {
2193 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
2194 }
2195 JLI_MemFree(knownVMs);
2196 knownVMs = newKnownVMs;
2197 knownVMsLimit = newMax;
2198 }
2199
2200
2201 /* Returns index of VM or -1 if not found */
2202 static int
2203 KnownVMIndex(const char* name)
2204 {
2205 int i;
2206 if (JLI_StrCCmp(name, "-J") == 0) name += 2;
2207 for (i = 0; i < knownVMsCount; i++) {
2208 if (!JLI_StrCmp(name, knownVMs[i].name)) {
2209 return i;
2210 }
2211 }
2212 return -1;
2213 }
2214
2215 static void
2216 FreeKnownVMs()
2217 {
2218 int i;
2219 for (i = 0; i < knownVMsCount; i++) {
2220 JLI_MemFree(knownVMs[i].name);
2221 knownVMs[i].name = NULL;
2222 }
2223 JLI_MemFree(knownVMs);
2224 }
2225
2226 /*
2227 * Displays the splash screen according to the jar file name
2228 * and image file names stored in environment variables
2229 */
2230 void
2231 ShowSplashScreen()
2232 {
2233 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
2234 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
2235 int data_size;
2236 void *image_data = NULL;
2237 float scale_factor = 1;
2238 char *scaled_splash_name = NULL;
2239 jboolean isImageScaled = JNI_FALSE;
2240 size_t maxScaledImgNameLength = 0;
2241 if (file_name == NULL){
2242 return;
2243 }
2244 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name);
2245
2246 scaled_splash_name = JLI_MemAlloc(
2247 maxScaledImgNameLength * sizeof(char));
2248 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name,
2249 &scale_factor,
2250 scaled_splash_name, maxScaledImgNameLength);
2251 if (jar_name) {
2252
2253 if (isImageScaled) {
2254 image_data = JLI_JarUnpackFile(
2255 jar_name, scaled_splash_name, &data_size);
2256 }
2257
2258 if (!image_data) {
2259 scale_factor = 1;
2260 image_data = JLI_JarUnpackFile(
2261 jar_name, file_name, &data_size);
2262 }
2263 if (image_data) {
2264 DoSplashInit();
2265 DoSplashSetScaleFactor(scale_factor);
2266 DoSplashLoadMemory(image_data, data_size);
2267 JLI_MemFree(image_data);
2268 }
2269 } else {
2270 DoSplashInit();
2271 if (isImageScaled) {
2272 DoSplashSetScaleFactor(scale_factor);
2273 DoSplashLoadFile(scaled_splash_name);
2274 } else {
2275 DoSplashLoadFile(file_name);
2276 }
2277 }
2278 JLI_MemFree(scaled_splash_name);
2279
2280 DoSplashSetFileJarName(file_name, jar_name);
2281
2282 /*
2283 * Done with all command line processing and potential re-execs so
2284 * clean up the environment.
2285 */
2286 (void)UnsetEnv(ENV_ENTRY);
2287 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
2288 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
2289
2290 JLI_MemFree(splash_jar_entry);
2291 JLI_MemFree(splash_file_entry);
2292
2293 }
2294
2295 const char*
2296 GetFullVersion()
2297 {
2298 return _fVersion;
2299 }
2300
2301 const char*
2302 GetProgramName()
2303 {
2304 return _program_name;
2305 }
2306
2307 const char*
2308 GetLauncherName()
2309 {
2310 return _launcher_name;
2311 }
2312
2313 jboolean
2314 IsJavaArgs()
2315 {
2316 return _is_java_args;
2317 }
2318
2319 static jboolean
2320 IsWildCardEnabled()
2321 {
2322 return _wc_enabled;
2323 }
2324
2325 int
2326 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize,
2327 int argc, char **argv,
2328 int mode, char *what, int ret)
2329 {
2330 if (threadStackSize == 0) {
2331 /*
2332 * If the user hasn't specified a non-zero stack size ask the JVM for its default.
2333 * A returned 0 means 'use the system default' for a platform, e.g., Windows.
2334 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
2335 * return its default stack size through the init args structure.
2336 */
2337 struct JDK1_1InitArgs args1_1;
2338 memset((void*)&args1_1, 0, sizeof(args1_1));
2339 args1_1.version = JNI_VERSION_1_1;
2340 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
2341 if (args1_1.javaStackSize > 0) {
2342 threadStackSize = args1_1.javaStackSize;
2343 }
2344 }
2345
2346 /* Create a new thread to create JVM and invoke main method */
2347 JavaMainArgs args;
2348 int rslt;
2349
2350 args.argc = argc;
2351 args.argv = argv;
2352 args.mode = mode;
2353 args.what = what;
2354 args.ifn = *ifn;
2355
2356 rslt = CallJavaMainInNewThread(threadStackSize, (void*)&args);
2357 /* If the caller has deemed there is an error we
2358 * simply return that, otherwise we return the value of
2359 * the callee
2360 */
2361 return (ret != 0) ? ret : rslt;
2362 }
2363
2364 static void
2365 DumpState()
2366 {
2367 if (!JLI_IsTraceLauncher()) return ;
2368 printf("Launcher state:\n");
2369 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex());
2370 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off");
2371 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off");
2372 printf("\tprogram name:%s\n", GetProgramName());
2373 printf("\tlauncher name:%s\n", GetLauncherName());
2374 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off");
2375 printf("\tfullversion:%s\n", GetFullVersion());
2376 }
2377
2378 /*
2379 * A utility procedure to always print to stderr
2380 */
2381 JNIEXPORT void JNICALL
2382 JLI_ReportMessage(const char* fmt, ...)
2383 {
2384 va_list vl;
2385 va_start(vl, fmt);
2386 vfprintf(stderr, fmt, vl);
2387 fprintf(stderr, "\n");
2388 va_end(vl);
2389 }
2390
2391 /*
2392 * A utility procedure to always print to stdout
2393 */
2394 void
2395 JLI_ShowMessage(const char* fmt, ...)
2396 {
2397 va_list vl;
2398 va_start(vl, fmt);
2399 vfprintf(stdout, fmt, vl);
2400 fprintf(stdout, "\n");
2401 va_end(vl);
2402 }