1 /*
2 * Copyright (c) 1995, 2018, 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 * This reports error. VM will not be created and no usage is printed.
177 */
178 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \
179 do { \
180 if (!AC_ok) { \
181 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
182 printUsage = JNI_FALSE; \
183 *pret = 1; \
184 return JNI_FALSE; \
185 } \
186 } while (JNI_FALSE)
187
188 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \
189 do { \
190 if (AC_arg_count < 1) { \
191 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
192 printUsage = JNI_TRUE; \
193 *pret = 1; \
194 return JNI_TRUE; \
195 } \
196 } while (JNI_FALSE)
197
198 /*
199 * Running Java code in primordial thread caused many problems. We will
200 * create a new thread to invoke JVM. See 6316197 for more information.
201 */
202 static jlong threadStackSize = 0; /* stack size of the new thread */
203 static jlong maxHeapSize = 0; /* max heap size */
204 static jlong initialHeapSize = 0; /* inital heap size */
205
206 /*
207 * A minimum -Xss stack size suitable for all platforms.
208 */
209 #ifndef STACK_SIZE_MINIMUM
210 #define STACK_SIZE_MINIMUM (64 * KB)
211 #endif
212
213 /*
214 * Entry point.
215 */
216 JNIEXPORT int JNICALL
217 JLI_Launch(int argc, char ** argv, /* main argc, argc */
218 int jargc, const char** jargv, /* java args */
219 int appclassc, const char** appclassv, /* app classpath */
220 const char* fullversion, /* full version defined */
221 const char* dotversion, /* UNUSED dot version defined */
222 const char* pname, /* program name */
223 const char* lname, /* launcher name */
224 jboolean javaargs, /* JAVA_ARGS */
225 jboolean cpwildcard, /* classpath wildcard*/
226 jboolean javaw, /* windows-only javaw */
227 jint ergo /* unused */
228 )
229 {
230 int mode = LM_UNKNOWN;
231 char *what = NULL;
232 char *main_class = NULL;
233 int ret;
234 InvocationFunctions ifn;
235 jlong start, end;
236 char jvmpath[MAXPATHLEN];
237 char jrepath[MAXPATHLEN];
238 char jvmcfg[MAXPATHLEN];
239
240 _fVersion = fullversion;
241 _launcher_name = lname;
242 _program_name = pname;
243 _is_java_args = javaargs;
244 _wc_enabled = cpwildcard;
245
246 InitLauncher(javaw);
247 DumpState();
248 if (JLI_IsTraceLauncher()) {
249 int i;
250 printf("Java args:\n");
251 for (i = 0; i < jargc ; i++) {
252 printf("jargv[%d] = %s\n", i, jargv[i]);
253 }
254 printf("Command line args:\n");
255 for (i = 0; i < argc ; i++) {
256 printf("argv[%d] = %s\n", i, argv[i]);
257 }
258 AddOption("-Dsun.java.launcher.diag=true", NULL);
259 }
260
261 /*
262 * SelectVersion() has several responsibilities:
263 *
264 * 1) Disallow specification of another JRE. With 1.9, another
265 * version of the JRE cannot be invoked.
266 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since
267 * all mJRE directives have been stripped from the request but
268 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been
269 * invoked from the command line.
270 */
271 SelectVersion(argc, argv, &main_class);
272
273 CreateExecutionEnvironment(&argc, &argv,
274 jrepath, sizeof(jrepath),
275 jvmpath, sizeof(jvmpath),
276 jvmcfg, sizeof(jvmcfg));
277
278 if (!IsJavaArgs()) {
279 SetJvmEnvironment(argc,argv);
280 }
281
282 ifn.CreateJavaVM = 0;
283 ifn.GetDefaultJavaVMInitArgs = 0;
284
285 if (JLI_IsTraceLauncher()) {
286 start = CounterGet();
287 }
288
289 if (!LoadJavaVM(jvmpath, &ifn)) {
290 return(6);
291 }
292
293 if (JLI_IsTraceLauncher()) {
294 end = CounterGet();
295 }
296
297 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n",
298 (long)(jint)Counter2Micros(end-start));
299
300 ++argv;
301 --argc;
302
303 if (IsJavaArgs()) {
304 /* Preprocess wrapper arguments */
305 TranslateApplicationArgs(jargc, jargv, &argc, &argv);
306 if (!AddApplicationOptions(appclassc, appclassv)) {
307 return(1);
308 }
309 } else {
310 /* Set default CLASSPATH */
311 char* cpath = getenv("CLASSPATH");
312 if (cpath != NULL) {
313 SetClassPath(cpath);
314 }
315 }
316
317 /* Parse command line options; if the return value of
318 * ParseArguments is false, the program should exit.
319 */
320 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath))
321 {
322 return(ret);
323 }
324
325 /* Override class path if -jar flag was specified */
326 if (mode == LM_JAR) {
327 SetClassPath(what); /* Override class path */
328 }
329
330 /* set the -Dsun.java.command pseudo property */
331 SetJavaCommandLineProp(what, argc, argv);
332
333 /* Set the -Dsun.java.launcher pseudo property */
334 SetJavaLauncherProp();
335
336 /* set the -Dsun.java.launcher.* platform properties */
337 SetJavaLauncherPlatformProps();
338
339 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret);
340 }
341 /*
342 * Always detach the main thread so that it appears to have ended when
343 * the application's main method exits. This will invoke the
344 * uncaught exception handler machinery if main threw an
345 * exception. An uncaught exception handler cannot change the
346 * launcher's return code except by calling System.exit.
347 *
348 * Wait for all non-daemon threads to end, then destroy the VM.
349 * This will actually create a trivial new Java waiter thread
350 * named "DestroyJavaVM", but this will be seen as a different
351 * thread from the one that executed main, even though they are
352 * the same C thread. This allows mainThread.join() and
353 * mainThread.isAlive() to work as expected.
354 */
355 #define LEAVE() \
356 do { \
357 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \
358 JLI_ReportErrorMessage(JVM_ERROR2); \
359 ret = 1; \
360 } \
361 if (JNI_TRUE) { \
362 (*vm)->DestroyJavaVM(vm); \
363 return ret; \
364 } \
365 } while (JNI_FALSE)
366
367 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \
368 do { \
369 if ((*env)->ExceptionOccurred(env)) { \
370 JLI_ReportExceptionDescription(env); \
371 LEAVE(); \
372 } \
373 if ((CENL_exception) == NULL) { \
374 JLI_ReportErrorMessage(JNI_ERROR); \
375 LEAVE(); \
376 } \
377 } while (JNI_FALSE)
378
379 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \
380 do { \
381 if ((*env)->ExceptionOccurred(env)) { \
382 JLI_ReportExceptionDescription(env); \
383 ret = (CEL_return_value); \
384 LEAVE(); \
385 } \
386 } while (JNI_FALSE)
387
388
389 int JNICALL
390 JavaMain(void * _args)
391 {
392 JavaMainArgs *args = (JavaMainArgs *)_args;
393 int argc = args->argc;
394 char **argv = args->argv;
395 int mode = args->mode;
396 char *what = args->what;
397 InvocationFunctions ifn = args->ifn;
398
399 JavaVM *vm = 0;
400 JNIEnv *env = 0;
401 jclass mainClass = NULL;
402 jclass appClass = NULL; // actual application class being launched
403 jmethodID mainID;
404 jobjectArray mainArgs;
405 int ret = 0;
406 jlong start, end;
407
408 RegisterThread();
409
410 /* Initialize the virtual machine */
411 start = CounterGet();
412 if (!InitializeJVM(&vm, &env, &ifn)) {
413 JLI_ReportErrorMessage(JVM_ERROR1);
414 exit(1);
415 }
416
417 if (showSettings != NULL) {
418 ShowSettings(env, showSettings);
419 CHECK_EXCEPTION_LEAVE(1);
420 }
421
422 // show resolved modules and continue
423 if (showResolvedModules) {
424 ShowResolvedModules(env);
425 CHECK_EXCEPTION_LEAVE(1);
426 }
427
428 // list observable modules, then exit
429 if (listModules) {
430 ListModules(env);
431 CHECK_EXCEPTION_LEAVE(1);
432 LEAVE();
433 }
434
435 // describe a module, then exit
436 if (describeModule != NULL) {
437 DescribeModule(env, describeModule);
438 CHECK_EXCEPTION_LEAVE(1);
439 LEAVE();
440 }
441
442 // validate modules on the module path, then exit
443 if (validateModules) {
444 jboolean okay = ValidateModules(env);
445 CHECK_EXCEPTION_LEAVE(1);
446 if (!okay) ret = 1;
447 LEAVE();
448 }
449
450 if (printVersion || showVersion) {
451 PrintJavaVersion(env, showVersion);
452 CHECK_EXCEPTION_LEAVE(0);
453 if (printVersion) {
454 LEAVE();
455 }
456 }
457
458 /* If the user specified neither a class name nor a JAR file */
459 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) {
460 PrintUsage(env, printXUsage);
461 CHECK_EXCEPTION_LEAVE(1);
462 LEAVE();
463 }
464
465 FreeKnownVMs(); /* after last possible PrintUsage */
466
467 if (JLI_IsTraceLauncher()) {
468 end = CounterGet();
469 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n",
470 (long)(jint)Counter2Micros(end-start));
471 }
472
473 /* At this stage, argc/argv have the application's arguments */
474 if (JLI_IsTraceLauncher()){
475 int i;
476 printf("%s is '%s'\n", launchModeNames[mode], what);
477 printf("App's argc is %d\n", argc);
478 for (i=0; i < argc; i++) {
479 printf(" argv[%2d] = '%s'\n", i, argv[i]);
480 }
481 }
482
483 ret = 1;
484
485 /*
486 * Get the application's main class. It also checks if the main
487 * method exists.
488 *
489 * See bugid 5030265. The Main-Class name has already been parsed
490 * from the manifest, but not parsed properly for UTF-8 support.
491 * Hence the code here ignores the value previously extracted and
492 * uses the pre-existing code to reextract the value. This is
493 * possibly an end of release cycle expedient. However, it has
494 * also been discovered that passing some character sets through
495 * the environment has "strange" behavior on some variants of
496 * Windows. Hence, maybe the manifest parsing code local to the
497 * launcher should never be enhanced.
498 *
499 * Hence, future work should either:
500 * 1) Correct the local parsing code and verify that the
501 * Main-Class attribute gets properly passed through
502 * all environments,
503 * 2) Remove the vestages of maintaining main_class through
504 * the environment (and remove these comments).
505 *
506 * This method also correctly handles launching existing JavaFX
507 * applications that may or may not have a Main-Class manifest entry.
508 */
509 mainClass = LoadMainClass(env, mode, what);
510 CHECK_EXCEPTION_NULL_LEAVE(mainClass);
511 /*
512 * In some cases when launching an application that needs a helper, e.g., a
513 * JavaFX application with no main method, the mainClass will not be the
514 * applications own main class but rather a helper class. To keep things
515 * consistent in the UI we need to track and report the application main class.
516 */
517 appClass = GetApplicationClass(env);
518 NULL_CHECK_RETURN_VALUE(appClass, -1);
519
520 /* Build platform specific argument array */
521 mainArgs = CreateApplicationArgs(env, argv, argc);
522 CHECK_EXCEPTION_NULL_LEAVE(mainArgs);
523
524 if (dryRun) {
525 ret = 0;
526 LEAVE();
527 }
528
529 /*
530 * PostJVMInit uses the class name as the application name for GUI purposes,
531 * for example, on OSX this sets the application name in the menu bar for
532 * both SWT and JavaFX. So we'll pass the actual application class here
533 * instead of mainClass as that may be a launcher or helper class instead
534 * of the application class.
535 */
536 PostJVMInit(env, appClass, vm);
537 CHECK_EXCEPTION_LEAVE(1);
538
539 /*
540 * The LoadMainClass not only loads the main class, it will also ensure
541 * that the main method's signature is correct, therefore further checking
542 * is not required. The main method is invoked here so that extraneous java
543 * stacks are not in the application stack trace.
544 */
545 mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
546 "([Ljava/lang/String;)V");
547 CHECK_EXCEPTION_NULL_LEAVE(mainID);
548
549 /* Invoke main method. */
550 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs);
551
552 /*
553 * The launcher's exit code (in the absence of calls to
554 * System.exit) will be non-zero if main threw an exception.
555 */
556 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1;
557
558 LEAVE();
559 }
560
561 /*
562 * Test if the given name is one of the class path options.
563 */
564 static jboolean
565 IsClassPathOption(const char* name) {
566 return JLI_StrCmp(name, "-classpath") == 0 ||
567 JLI_StrCmp(name, "-cp") == 0 ||
568 JLI_StrCmp(name, "--class-path") == 0;
569 }
570
571 /*
572 * Test if the given name is a launcher option taking the main entry point.
573 */
574 static jboolean
575 IsLauncherMainOption(const char* name) {
576 return JLI_StrCmp(name, "--module") == 0 ||
577 JLI_StrCmp(name, "-m") == 0;
578 }
579
580 /*
581 * Test if the given name is a white-space launcher option.
582 */
583 static jboolean
584 IsLauncherOption(const char* name) {
585 return IsClassPathOption(name) ||
586 IsLauncherMainOption(name) ||
587 JLI_StrCmp(name, "--describe-module") == 0 ||
588 JLI_StrCmp(name, "-d") == 0;
589 }
590
591 /*
592 * Test if the given name is a module-system white-space option that
593 * will be passed to the VM with its corresponding long-form option
594 * name and "=" delimiter.
595 */
596 static jboolean
597 IsModuleOption(const char* name) {
598 return JLI_StrCmp(name, "--module-path") == 0 ||
599 JLI_StrCmp(name, "-p") == 0 ||
600 JLI_StrCmp(name, "--upgrade-module-path") == 0 ||
601 JLI_StrCmp(name, "--add-modules") == 0 ||
602 JLI_StrCmp(name, "--limit-modules") == 0 ||
603 JLI_StrCmp(name, "--add-exports") == 0 ||
604 JLI_StrCmp(name, "--add-opens") == 0 ||
605 JLI_StrCmp(name, "--add-reads") == 0 ||
606 JLI_StrCmp(name, "--patch-module") == 0;
607 }
608
609 static jboolean
610 IsLongFormModuleOption(const char* name) {
611 return JLI_StrCCmp(name, "--module-path=") == 0 ||
612 JLI_StrCCmp(name, "--upgrade-module-path=") == 0 ||
613 JLI_StrCCmp(name, "--add-modules=") == 0 ||
614 JLI_StrCCmp(name, "--limit-modules=") == 0 ||
615 JLI_StrCCmp(name, "--add-exports=") == 0 ||
616 JLI_StrCCmp(name, "--add-reads=") == 0 ||
617 JLI_StrCCmp(name, "--patch-module=") == 0;
618 }
619
620 /*
621 * Test if the given name has a white space option.
622 */
623 jboolean
624 IsWhiteSpaceOption(const char* name) {
625 return IsModuleOption(name) ||
626 IsLauncherOption(name);
627 }
628
629 /*
630 * Checks the command line options to find which JVM type was
631 * specified. If no command line option was given for the JVM type,
632 * the default type is used. The environment variable
633 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also
634 * checked as ways of specifying which JVM type to invoke.
635 */
636 char *
637 CheckJvmType(int *pargc, char ***argv, jboolean speculative) {
638 int i, argi;
639 int argc;
640 char **newArgv;
641 int newArgvIdx = 0;
642 int isVMType;
643 int jvmidx = -1;
644 char *jvmtype = getenv("JDK_ALTERNATE_VM");
645
646 argc = *pargc;
647
648 /* To make things simpler we always copy the argv array */
649 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *));
650
651 /* The program name is always present */
652 newArgv[newArgvIdx++] = (*argv)[0];
653
654 for (argi = 1; argi < argc; argi++) {
655 char *arg = (*argv)[argi];
656 isVMType = 0;
657
658 if (IsJavaArgs()) {
659 if (arg[0] != '-') {
660 newArgv[newArgvIdx++] = arg;
661 continue;
662 }
663 } else {
664 if (IsWhiteSpaceOption(arg)) {
665 newArgv[newArgvIdx++] = arg;
666 argi++;
667 if (argi < argc) {
668 newArgv[newArgvIdx++] = (*argv)[argi];
669 }
670 continue;
671 }
672 if (arg[0] != '-') break;
673 }
674
675 /* Did the user pass an explicit VM type? */
676 i = KnownVMIndex(arg);
677 if (i >= 0) {
678 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */
679 isVMType = 1;
680 *pargc = *pargc - 1;
681 }
682
683 /* Did the user specify an "alternate" VM? */
684 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) {
685 isVMType = 1;
686 jvmtype = arg+((arg[1]=='X')? 10 : 12);
687 jvmidx = -1;
688 }
689
690 if (!isVMType) {
691 newArgv[newArgvIdx++] = arg;
692 }
693 }
694
695 /*
696 * Finish copying the arguments if we aborted the above loop.
697 * NOTE that if we aborted via "break" then we did NOT copy the
698 * last argument above, and in addition argi will be less than
699 * argc.
700 */
701 while (argi < argc) {
702 newArgv[newArgvIdx++] = (*argv)[argi];
703 argi++;
704 }
705
706 /* argv is null-terminated */
707 newArgv[newArgvIdx] = 0;
708
709 /* Copy back argv */
710 *argv = newArgv;
711 *pargc = newArgvIdx;
712
713 /* use the default VM type if not specified (no alias processing) */
714 if (jvmtype == NULL) {
715 char* result = knownVMs[0].name+1;
716 JLI_TraceLauncher("Default VM: %s\n", result);
717 return result;
718 }
719
720 /* if using an alternate VM, no alias processing */
721 if (jvmidx < 0)
722 return jvmtype;
723
724 /* Resolve aliases first */
725 {
726 int loopCount = 0;
727 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) {
728 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias);
729
730 if (loopCount > knownVMsCount) {
731 if (!speculative) {
732 JLI_ReportErrorMessage(CFG_ERROR1);
733 exit(1);
734 } else {
735 return "ERROR";
736 /* break; */
737 }
738 }
739
740 if (nextIdx < 0) {
741 if (!speculative) {
742 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias);
743 exit(1);
744 } else {
745 return "ERROR";
746 }
747 }
748 jvmidx = nextIdx;
749 jvmtype = knownVMs[jvmidx].name+1;
750 loopCount++;
751 }
752 }
753
754 switch (knownVMs[jvmidx].flag) {
755 case VM_WARN:
756 if (!speculative) {
757 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1);
758 }
759 /* fall through */
760 case VM_IGNORE:
761 jvmtype = knownVMs[jvmidx=0].name + 1;
762 /* fall through */
763 case VM_KNOWN:
764 break;
765 case VM_ERROR:
766 if (!speculative) {
767 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype);
768 exit(1);
769 } else {
770 return "ERROR";
771 }
772 }
773
774 return jvmtype;
775 }
776
777 /*
778 * This method must be called before the VM is loaded, primarily
779 * used to parse and set any VM related options or env variables.
780 * This function is non-destructive leaving the argument list intact.
781 */
782 static void
783 SetJvmEnvironment(int argc, char **argv) {
784
785 static const char* NMT_Env_Name = "NMT_LEVEL_";
786 int i;
787 /* process only the launcher arguments */
788 for (i = 0; i < argc; i++) {
789 char *arg = argv[i];
790 /*
791 * Since this must be a VM flag we stop processing once we see
792 * an argument the launcher would not have processed beyond (such
793 * as -version or -h), or an argument that indicates the following
794 * arguments are for the application (i.e. the main class name, or
795 * the -jar argument).
796 */
797 if (i > 0) {
798 char *prev = argv[i - 1];
799 // skip non-dash arg preceded by class path specifiers
800 if (*arg != '-' && IsWhiteSpaceOption(prev)) {
801 continue;
802 }
803
804 if (*arg != '-' || isTerminalOpt(arg)) {
805 return;
806 }
807 }
808 /*
809 * The following case checks for "-XX:NativeMemoryTracking=value".
810 * If value is non null, an environmental variable set to this value
811 * will be created to be used by the JVM.
812 * The argument is passed to the JVM, which will check validity.
813 * The JVM is responsible for removing the env variable.
814 */
815 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) {
816 int retval;
817 // get what follows this parameter, include "="
818 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking=");
819 if (JLI_StrLen(arg) > pnlen) {
820 char* value = arg + pnlen;
821 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits
822
823 /*
824 * ensures that malloc successful
825 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call
826 * that could store the address.
827 */
828 char * pbuf = (char*)JLI_MemAlloc(pbuflen);
829
830 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value);
831 retval = JLI_PutEnv(pbuf);
832 if (JLI_IsTraceLauncher()) {
833 char* envName;
834 char* envBuf;
835
836 // ensures that malloc successful
837 envName = (char*)JLI_MemAlloc(pbuflen);
838 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid());
839
840 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName);
841 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf);
842 envBuf = getenv(envName);
843 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf);
844 free(envName);
845 }
846 }
847 }
848 }
849 }
850
851 /* copied from HotSpot function "atomll()" */
852 static int
853 parse_size(const char *s, jlong *result) {
854 jlong n = 0;
855 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n);
856 if (args_read != 1) {
857 return 0;
858 }
859 while (*s != '\0' && *s >= '0' && *s <= '9') {
860 s++;
861 }
862 // 4705540: illegal if more characters are found after the first non-digit
863 if (JLI_StrLen(s) > 1) {
864 return 0;
865 }
866 switch (*s) {
867 case 'T': case 't':
868 *result = n * GB * KB;
869 return 1;
870 case 'G': case 'g':
871 *result = n * GB;
872 return 1;
873 case 'M': case 'm':
874 *result = n * MB;
875 return 1;
876 case 'K': case 'k':
877 *result = n * KB;
878 return 1;
879 case '\0':
880 *result = n;
881 return 1;
882 default:
883 /* Create JVM with default stack and let VM handle malformed -Xss string*/
884 return 0;
885 }
886 }
887
888 /*
889 * Adds a new VM option with the given name and value.
890 */
891 void
892 AddOption(char *str, void *info)
893 {
894 /*
895 * Expand options array if needed to accommodate at least one more
896 * VM option.
897 */
898 if (numOptions >= maxOptions) {
899 if (options == 0) {
900 maxOptions = 4;
901 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
902 } else {
903 JavaVMOption *tmp;
904 maxOptions *= 2;
905 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
906 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
907 JLI_MemFree(options);
908 options = tmp;
909 }
910 }
911 options[numOptions].optionString = str;
912 options[numOptions++].extraInfo = info;
913
914 if (JLI_StrCCmp(str, "-Xss") == 0) {
915 jlong tmp;
916 if (parse_size(str + 4, &tmp)) {
917 threadStackSize = tmp;
918 /*
919 * Make sure the thread stack size is big enough that we won't get a stack
920 * overflow before the JVM startup code can check to make sure the stack
921 * is big enough.
922 */
923 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) {
924 threadStackSize = STACK_SIZE_MINIMUM;
925 }
926 }
927 }
928
929 if (JLI_StrCCmp(str, "-Xmx") == 0) {
930 jlong tmp;
931 if (parse_size(str + 4, &tmp)) {
932 maxHeapSize = tmp;
933 }
934 }
935
936 if (JLI_StrCCmp(str, "-Xms") == 0) {
937 jlong tmp;
938 if (parse_size(str + 4, &tmp)) {
939 initialHeapSize = tmp;
940 }
941 }
942 }
943
944 static void
945 SetClassPath(const char *s)
946 {
947 char *def;
948 const char *orig = s;
949 static const char format[] = "-Djava.class.path=%s";
950 /*
951 * usually we should not get a null pointer, but there are cases where
952 * we might just get one, in which case we simply ignore it, and let the
953 * caller deal with it
954 */
955 if (s == NULL)
956 return;
957 s = JLI_WildcardExpandClasspath(s);
958 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s))
959 // s is became corrupted after expanding wildcards
960 return;
961 def = JLI_MemAlloc(sizeof(format)
962 - 2 /* strlen("%s") */
963 + JLI_StrLen(s));
964 sprintf(def, format, s);
965 AddOption(def, NULL);
966 if (s != orig)
967 JLI_MemFree((char *) s);
968 _have_classpath = JNI_TRUE;
969 }
970
971 static void
972 AddLongFormOption(const char *option, const char *arg)
973 {
974 static const char format[] = "%s=%s";
975 char *def;
976 size_t def_len;
977
978 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1;
979 def = JLI_MemAlloc(def_len);
980 JLI_Snprintf(def, def_len, format, option, arg);
981 AddOption(def, NULL);
982 }
983
984 static void
985 SetMainModule(const char *s)
986 {
987 static const char format[] = "-Djdk.module.main=%s";
988 char* slash = JLI_StrChr(s, '/');
989 size_t s_len, def_len;
990 char *def;
991
992 /* value may be <module> or <module>/<mainclass> */
993 if (slash == NULL) {
994 s_len = JLI_StrLen(s);
995 } else {
996 s_len = (size_t) (slash - s);
997 }
998 def_len = sizeof(format)
999 - 2 /* strlen("%s") */
1000 + s_len;
1001 def = JLI_MemAlloc(def_len);
1002 JLI_Snprintf(def, def_len, format, s);
1003 AddOption(def, NULL);
1004 }
1005
1006 /*
1007 * The SelectVersion() routine ensures that an appropriate version of
1008 * the JRE is running. The specification for the appropriate version
1009 * is obtained from either the manifest of a jar file (preferred) or
1010 * from command line options.
1011 * The routine also parses splash screen command line options and
1012 * passes on their values in private environment variables.
1013 */
1014 static void
1015 SelectVersion(int argc, char **argv, char **main_class)
1016 {
1017 char *arg;
1018 char *operand;
1019 char *version = NULL;
1020 char *jre = NULL;
1021 int jarflag = 0;
1022 int headlessflag = 0;
1023 int restrict_search = -1; /* -1 implies not known */
1024 manifest_info info;
1025 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "=";
1026 char *splash_file_name = NULL;
1027 char *splash_jar_name = NULL;
1028 char *env_in;
1029 int res;
1030 jboolean has_arg;
1031
1032 /*
1033 * If the version has already been selected, set *main_class
1034 * with the value passed through the environment (if any) and
1035 * simply return.
1036 */
1037
1038 /*
1039 * This environmental variable can be set by mJRE capable JREs
1040 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been
1041 * stripped by those JREs. This environmental variable allows 1.9+
1042 * JREs to be started by these mJRE capable JREs.
1043 * Note that mJRE directives in the jar manifest file would have been
1044 * ignored for a JRE started by another JRE...
1045 * .. skipped for JRE 1.5 and beyond.
1046 * .. not even checked for pre 1.5.
1047 */
1048 if ((env_in = getenv(ENV_ENTRY)) != NULL) {
1049 if (*env_in != '\0')
1050 *main_class = JLI_StringDup(env_in);
1051 return;
1052 }
1053
1054 /*
1055 * Scan through the arguments for options relevant to multiple JRE
1056 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8.
1057 *
1058 * This capability is no longer available with JRE versions 1.9 and later.
1059 * These command line options are reported as errors.
1060 */
1061
1062 argc--;
1063 argv++;
1064 while ((arg = *argv) != 0 && *arg == '-') {
1065 has_arg = IsOptionWithArgument(argc, argv);
1066 if (JLI_StrCCmp(arg, "-version:") == 0) {
1067 JLI_ReportErrorMessage(SPC_ERROR1);
1068 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) {
1069 JLI_ReportErrorMessage(SPC_ERROR2);
1070 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) {
1071 JLI_ReportErrorMessage(SPC_ERROR2);
1072 } else {
1073 if (JLI_StrCmp(arg, "-jar") == 0)
1074 jarflag = 1;
1075 if (IsWhiteSpaceOption(arg)) {
1076 if (has_arg) {
1077 argc--;
1078 argv++;
1079 arg = *argv;
1080 }
1081 }
1082
1083 /*
1084 * Checking for headless toolkit option in the some way as AWT does:
1085 * "true" means true and any other value means false
1086 */
1087 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) {
1088 headlessflag = 1;
1089 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) {
1090 headlessflag = 0;
1091 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1092 splash_file_name = arg+8;
1093 }
1094 }
1095 argc--;
1096 argv++;
1097 }
1098 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */
1099 operand = NULL;
1100 } else {
1101 argc--;
1102 operand = *argv++;
1103 }
1104
1105 /*
1106 * If there is a jar file, read the manifest. If the jarfile can't be
1107 * read, the manifest can't be read from the jar file, or the manifest
1108 * is corrupt, issue the appropriate error messages and exit.
1109 *
1110 * Even if there isn't a jar file, construct a manifest_info structure
1111 * containing the command line information. It's a convenient way to carry
1112 * this data around.
1113 */
1114 if (jarflag && operand) {
1115 if ((res = JLI_ParseManifest(operand, &info)) != 0) {
1116 if (res == -1)
1117 JLI_ReportErrorMessage(JAR_ERROR2, operand);
1118 else
1119 JLI_ReportErrorMessage(JAR_ERROR3, operand);
1120 exit(1);
1121 }
1122
1123 /*
1124 * Command line splash screen option should have precedence
1125 * over the manifest, so the manifest data is used only if
1126 * splash_file_name has not been initialized above during command
1127 * line parsing
1128 */
1129 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) {
1130 splash_file_name = info.splashscreen_image_file_name;
1131 splash_jar_name = operand;
1132 }
1133 } else {
1134 info.manifest_version = NULL;
1135 info.main_class = NULL;
1136 info.jre_version = NULL;
1137 info.jre_restrict_search = 0;
1138 }
1139
1140 /*
1141 * Passing on splash screen info in environment variables
1142 */
1143 if (splash_file_name && !headlessflag) {
1144 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1);
1145 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
1146 JLI_StrCat(splash_file_entry, splash_file_name);
1147 putenv(splash_file_entry);
1148 }
1149 if (splash_jar_name && !headlessflag) {
1150 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1);
1151 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
1152 JLI_StrCat(splash_jar_entry, splash_jar_name);
1153 putenv(splash_jar_entry);
1154 }
1155
1156
1157 /*
1158 * "Valid" returns (other than unrecoverable errors) follow. Set
1159 * main_class as a side-effect of this routine.
1160 */
1161 if (info.main_class != NULL)
1162 *main_class = JLI_StringDup(info.main_class);
1163
1164 if (info.jre_version == NULL) {
1165 JLI_FreeManifest();
1166 return;
1167 }
1168
1169 }
1170
1171 /*
1172 * Test if the current argv is an option, i.e. with a leading `-`
1173 * and followed with an argument without a leading `-`.
1174 */
1175 static jboolean
1176 IsOptionWithArgument(int argc, char** argv) {
1177 char* option;
1178 char* arg;
1179
1180 if (argc <= 1)
1181 return JNI_FALSE;
1182
1183 option = *argv;
1184 arg = *(argv+1);
1185 return *option == '-' && *arg != '-';
1186 }
1187
1188 /*
1189 * Gets the option, and its argument if the option has an argument.
1190 * It will update *pargc, **pargv to the next option.
1191 */
1192 static int
1193 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) {
1194 int argc = *pargc;
1195 char** argv = *pargv;
1196 char* arg = *argv;
1197
1198 char* option = arg;
1199 char* value = NULL;
1200 char* equals = NULL;
1201 int kind = LAUNCHER_OPTION;
1202 jboolean has_arg = JNI_FALSE;
1203
1204 // check if this option may be a white-space option with an argument
1205 has_arg = IsOptionWithArgument(argc, argv);
1206
1207 argv++; --argc;
1208 if (IsLauncherOption(arg)) {
1209 if (has_arg) {
1210 value = *argv;
1211 argv++; --argc;
1212 }
1213 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION
1214 : LAUNCHER_OPTION_WITH_ARGUMENT;
1215 } else if (IsModuleOption(arg)) {
1216 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1217 if (has_arg) {
1218 value = *argv;
1219 argv++; --argc;
1220 }
1221
1222 /*
1223 * Support short form alias
1224 */
1225 if (JLI_StrCmp(arg, "-p") == 0) {
1226 option = "--module-path";
1227 }
1228
1229 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) {
1230 value = equals+1;
1231 if (JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1232 JLI_StrCCmp(arg, "--module=") == 0 ||
1233 JLI_StrCCmp(arg, "--class-path=") == 0) {
1234 kind = LAUNCHER_OPTION_WITH_ARGUMENT;
1235 } else {
1236 kind = VM_LONG_OPTION;
1237 }
1238 }
1239
1240 *pargc = argc;
1241 *pargv = argv;
1242 *poption = option;
1243 *pvalue = value;
1244 return kind;
1245 }
1246
1247 /*
1248 * Parses command line arguments. Returns JNI_FALSE if launcher
1249 * should exit without starting vm, returns JNI_TRUE if vm needs
1250 * to be started to process given options. *pret (the launcher
1251 * process return value) is set to 0 for a normal exit.
1252 */
1253 static jboolean
1254 ParseArguments(int *pargc, char ***pargv,
1255 int *pmode, char **pwhat,
1256 int *pret, const char *jrepath)
1257 {
1258 int argc = *pargc;
1259 char **argv = *pargv;
1260 int mode = LM_UNKNOWN;
1261 char *arg;
1262
1263 *pret = 0;
1264
1265 while ((arg = *argv) != 0 && *arg == '-') {
1266 char *option = NULL;
1267 char *value = NULL;
1268 int kind = GetOpt(&argc, &argv, &option, &value);
1269 jboolean has_arg = value != NULL && JLI_StrLen(value) > 0;
1270 jboolean has_arg_any_len = value != NULL;
1271
1272 /*
1273 * Option to set main entry point
1274 */
1275 if (JLI_StrCmp(arg, "-jar") == 0) {
1276 ARG_CHECK(argc, ARG_ERROR2, arg);
1277 mode = LM_JAR;
1278 } else if (JLI_StrCmp(arg, "--module") == 0 ||
1279 JLI_StrCCmp(arg, "--module=") == 0 ||
1280 JLI_StrCmp(arg, "-m") == 0) {
1281 REPORT_ERROR (has_arg, ARG_ERROR5, arg);
1282 SetMainModule(value);
1283 mode = LM_MODULE;
1284 if (has_arg) {
1285 *pwhat = value;
1286 break;
1287 }
1288 } else if (JLI_StrCmp(arg, "--class-path") == 0 ||
1289 JLI_StrCCmp(arg, "--class-path=") == 0 ||
1290 JLI_StrCmp(arg, "-classpath") == 0 ||
1291 JLI_StrCmp(arg, "-cp") == 0) {
1292 REPORT_ERROR (has_arg_any_len, ARG_ERROR1, arg);
1293 SetClassPath(value);
1294 mode = LM_CLASS;
1295 } else if (JLI_StrCmp(arg, "--list-modules") == 0) {
1296 listModules = JNI_TRUE;
1297 } else if (JLI_StrCmp(arg, "--show-resolved-modules") == 0) {
1298 showResolvedModules = JNI_TRUE;
1299 } else if (JLI_StrCmp(arg, "--validate-modules") == 0) {
1300 AddOption("-Djdk.module.validation=true", NULL);
1301 validateModules = JNI_TRUE;
1302 } else if (JLI_StrCmp(arg, "--describe-module") == 0 ||
1303 JLI_StrCCmp(arg, "--describe-module=") == 0 ||
1304 JLI_StrCmp(arg, "-d") == 0) {
1305 REPORT_ERROR (has_arg_any_len, ARG_ERROR12, arg);
1306 describeModule = value;
1307 /*
1308 * Parse white-space options
1309 */
1310 } else if (has_arg) {
1311 if (kind == VM_LONG_OPTION) {
1312 AddOption(option, NULL);
1313 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) {
1314 AddLongFormOption(option, value);
1315 }
1316 /*
1317 * Error missing argument
1318 */
1319 } else if (!has_arg && (JLI_StrCmp(arg, "--module-path") == 0 ||
1320 JLI_StrCmp(arg, "-p") == 0 ||
1321 JLI_StrCmp(arg, "--upgrade-module-path") == 0)) {
1322 REPORT_ERROR (has_arg, ARG_ERROR4, arg);
1323
1324 } else if (!has_arg && (IsModuleOption(arg) || IsLongFormModuleOption(arg))) {
1325 REPORT_ERROR (has_arg, ARG_ERROR6, arg);
1326 /*
1327 * The following cases will cause the argument parsing to stop
1328 */
1329 } else if (JLI_StrCmp(arg, "-help") == 0 ||
1330 JLI_StrCmp(arg, "-h") == 0 ||
1331 JLI_StrCmp(arg, "-?") == 0) {
1332 printUsage = JNI_TRUE;
1333 return JNI_TRUE;
1334 } else if (JLI_StrCmp(arg, "--help") == 0) {
1335 printUsage = JNI_TRUE;
1336 printTo = USE_STDOUT;
1337 return JNI_TRUE;
1338 } else if (JLI_StrCmp(arg, "-version") == 0) {
1339 printVersion = JNI_TRUE;
1340 return JNI_TRUE;
1341 } else if (JLI_StrCmp(arg, "--version") == 0) {
1342 printVersion = JNI_TRUE;
1343 printTo = USE_STDOUT;
1344 return JNI_TRUE;
1345 } else if (JLI_StrCmp(arg, "-showversion") == 0) {
1346 showVersion = JNI_TRUE;
1347 } else if (JLI_StrCmp(arg, "--show-version") == 0) {
1348 showVersion = JNI_TRUE;
1349 printTo = USE_STDOUT;
1350 } else if (JLI_StrCmp(arg, "--dry-run") == 0) {
1351 dryRun = JNI_TRUE;
1352 } else if (JLI_StrCmp(arg, "-X") == 0) {
1353 printXUsage = JNI_TRUE;
1354 return JNI_TRUE;
1355 } else if (JLI_StrCmp(arg, "--help-extra") == 0) {
1356 printXUsage = JNI_TRUE;
1357 printTo = USE_STDOUT;
1358 return JNI_TRUE;
1359 /*
1360 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT.
1361 * In the latter case, any SUBOPT value not recognized will default to "all"
1362 */
1363 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 ||
1364 JLI_StrCCmp(arg, "-XshowSettings:") == 0) {
1365 showSettings = arg;
1366 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) {
1367 AddOption("-Dsun.java.launcher.diag=true", NULL);
1368 } else if (JLI_StrCmp(arg, "--show-module-resolution") == 0) {
1369 AddOption("-Djdk.module.showModuleResolution=true", NULL);
1370 /*
1371 * The following case provide backward compatibility with old-style
1372 * command line options.
1373 */
1374 } else if (JLI_StrCmp(arg, "-fullversion") == 0) {
1375 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion());
1376 return JNI_FALSE;
1377 } else if (JLI_StrCmp(arg, "--full-version") == 0) {
1378 JLI_ShowMessage("%s %s", _launcher_name, GetFullVersion());
1379 return JNI_FALSE;
1380 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) {
1381 AddOption("-verbose:gc", NULL);
1382 } else if (JLI_StrCmp(arg, "-t") == 0) {
1383 AddOption("-Xt", NULL);
1384 } else if (JLI_StrCmp(arg, "-tm") == 0) {
1385 AddOption("-Xtm", NULL);
1386 } else if (JLI_StrCmp(arg, "-debug") == 0) {
1387 AddOption("-Xdebug", NULL);
1388 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) {
1389 AddOption("-Xnoclassgc", NULL);
1390 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) {
1391 AddOption("-Xverify:all", NULL);
1392 } else if (JLI_StrCmp(arg, "-verify") == 0) {
1393 AddOption("-Xverify:all", NULL);
1394 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) {
1395 AddOption("-Xverify:remote", NULL);
1396 } else if (JLI_StrCmp(arg, "-noverify") == 0) {
1397 AddOption("-Xverify:none", NULL);
1398 } else if (JLI_StrCCmp(arg, "-ss") == 0 ||
1399 JLI_StrCCmp(arg, "-oss") == 0 ||
1400 JLI_StrCCmp(arg, "-ms") == 0 ||
1401 JLI_StrCCmp(arg, "-mx") == 0) {
1402 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6);
1403 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */
1404 AddOption(tmp, NULL);
1405 } else if (JLI_StrCmp(arg, "-checksource") == 0 ||
1406 JLI_StrCmp(arg, "-cs") == 0 ||
1407 JLI_StrCmp(arg, "-noasyncgc") == 0) {
1408 /* No longer supported */
1409 JLI_ReportErrorMessage(ARG_WARN, arg);
1410 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1411 ; /* Ignore machine independent options already handled */
1412 } else if (ProcessPlatformOption(arg)) {
1413 ; /* Processing of platform dependent options */
1414 } else {
1415 /* java.class.path set on the command line */
1416 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) {
1417 _have_classpath = JNI_TRUE;
1418 }
1419 AddOption(arg, NULL);
1420 }
1421 }
1422
1423 if (*pwhat == NULL && --argc >= 0) {
1424 *pwhat = *argv++;
1425 }
1426
1427 if (*pwhat == NULL) {
1428 /* LM_UNKNOWN okay for options that exit */
1429 if (!listModules && !describeModule && !validateModules) {
1430 *pret = 1;
1431 }
1432 } else if (mode == LM_UNKNOWN) {
1433 /* default to LM_CLASS if -m, -jar and -cp options are
1434 * not specified */
1435 if (!_have_classpath) {
1436 SetClassPath(".");
1437 }
1438 mode = LM_CLASS;
1439 }
1440
1441 if (argc >= 0) {
1442 *pargc = argc;
1443 *pargv = argv;
1444 }
1445
1446 *pmode = mode;
1447
1448 return JNI_TRUE;
1449 }
1450
1451 /*
1452 * Initializes the Java Virtual Machine. Also frees options array when
1453 * finished.
1454 */
1455 static jboolean
1456 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1457 {
1458 JavaVMInitArgs args;
1459 jint r;
1460
1461 memset(&args, 0, sizeof(args));
1462 args.version = JNI_VERSION_1_2;
1463 args.nOptions = numOptions;
1464 args.options = options;
1465 args.ignoreUnrecognized = JNI_FALSE;
1466
1467 if (JLI_IsTraceLauncher()) {
1468 int i = 0;
1469 printf("JavaVM args:\n ");
1470 printf("version 0x%08lx, ", (long)args.version);
1471 printf("ignoreUnrecognized is %s, ",
1472 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1473 printf("nOptions is %ld\n", (long)args.nOptions);
1474 for (i = 0; i < numOptions; i++)
1475 printf(" option[%2d] = '%s'\n",
1476 i, args.options[i].optionString);
1477 }
1478
1479 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1480 JLI_MemFree(options);
1481 return r == JNI_OK;
1482 }
1483
1484 static jclass helperClass = NULL;
1485
1486 jclass
1487 GetLauncherHelperClass(JNIEnv *env)
1488 {
1489 if (helperClass == NULL) {
1490 NULL_CHECK0(helperClass = FindBootStrapClass(env,
1491 "sun/launcher/LauncherHelper"));
1492 }
1493 return helperClass;
1494 }
1495
1496 static jmethodID makePlatformStringMID = NULL;
1497 /*
1498 * Returns a new Java string object for the specified platform string.
1499 */
1500 static jstring
1501 NewPlatformString(JNIEnv *env, char *s)
1502 {
1503 int len = (int)JLI_StrLen(s);
1504 jbyteArray ary;
1505 jclass cls = GetLauncherHelperClass(env);
1506 NULL_CHECK0(cls);
1507 if (s == NULL)
1508 return 0;
1509
1510 ary = (*env)->NewByteArray(env, len);
1511 if (ary != 0) {
1512 jstring str = 0;
1513 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1514 if (!(*env)->ExceptionOccurred(env)) {
1515 if (makePlatformStringMID == NULL) {
1516 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env,
1517 cls, "makePlatformString", "(Z[B)Ljava/lang/String;"));
1518 }
1519 str = (*env)->CallStaticObjectMethod(env, cls,
1520 makePlatformStringMID, USE_STDERR, ary);
1521 CHECK_EXCEPTION_RETURN_VALUE(0);
1522 (*env)->DeleteLocalRef(env, ary);
1523 return str;
1524 }
1525 }
1526 return 0;
1527 }
1528
1529 /*
1530 * Returns a new array of Java string objects for the specified
1531 * array of platform strings.
1532 */
1533 jobjectArray
1534 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1535 {
1536 jarray cls;
1537 jarray ary;
1538 int i;
1539
1540 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String"));
1541 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1542 CHECK_EXCEPTION_RETURN_VALUE(0);
1543 for (i = 0; i < strc; i++) {
1544 jstring str = NewPlatformString(env, *strv++);
1545 NULL_CHECK0(str);
1546 (*env)->SetObjectArrayElement(env, ary, i, str);
1547 (*env)->DeleteLocalRef(env, str);
1548 }
1549 return ary;
1550 }
1551
1552 /*
1553 * Loads a class and verifies that the main class is present and it is ok to
1554 * call it for more details refer to the java implementation.
1555 */
1556 static jclass
1557 LoadMainClass(JNIEnv *env, int mode, char *name)
1558 {
1559 jmethodID mid;
1560 jstring str;
1561 jobject result;
1562 jlong start, end;
1563 jclass cls = GetLauncherHelperClass(env);
1564 NULL_CHECK0(cls);
1565 if (JLI_IsTraceLauncher()) {
1566 start = CounterGet();
1567 }
1568 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1569 "checkAndLoadMain",
1570 "(ZILjava/lang/String;)Ljava/lang/Class;"));
1571
1572 NULL_CHECK0(str = NewPlatformString(env, name));
1573 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid,
1574 USE_STDERR, mode, str));
1575
1576 if (JLI_IsTraceLauncher()) {
1577 end = CounterGet();
1578 printf("%ld micro seconds to load main class\n",
1579 (long)(jint)Counter2Micros(end-start));
1580 printf("----%s----\n", JLDEBUG_ENV_ENTRY);
1581 }
1582
1583 return (jclass)result;
1584 }
1585
1586 static jclass
1587 GetApplicationClass(JNIEnv *env)
1588 {
1589 jmethodID mid;
1590 jclass appClass;
1591 jclass cls = GetLauncherHelperClass(env);
1592 NULL_CHECK0(cls);
1593 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1594 "getApplicationClass",
1595 "()Ljava/lang/Class;"));
1596
1597 appClass = (*env)->CallStaticObjectMethod(env, cls, mid);
1598 CHECK_EXCEPTION_RETURN_VALUE(0);
1599 return appClass;
1600 }
1601
1602 static char* expandWildcardOnLongOpt(char* arg) {
1603 char *p, *value;
1604 size_t optLen, valueLen;
1605 p = JLI_StrChr(arg, '=');
1606
1607 if (p == NULL || p[1] == '\0') {
1608 JLI_ReportErrorMessage(ARG_ERROR1, arg);
1609 exit(1);
1610 }
1611 p++;
1612 value = (char *) JLI_WildcardExpandClasspath(p);
1613 if (p == value) {
1614 // no wildcard
1615 return arg;
1616 }
1617
1618 optLen = p - arg;
1619 valueLen = JLI_StrLen(value);
1620 p = JLI_MemAlloc(optLen + valueLen + 1);
1621 memcpy(p, arg, optLen);
1622 memcpy(p + optLen, value, valueLen);
1623 p[optLen + valueLen] = '\0';
1624 return p;
1625 }
1626
1627 /*
1628 * For tools, convert command line args thus:
1629 * javac -cp foo:foo/"*" -J-ms32m ...
1630 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1631 *
1632 * Takes 4 parameters, and returns the populated arguments
1633 */
1634 static void
1635 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv)
1636 {
1637 int argc = *pargc;
1638 char **argv = *pargv;
1639 int nargc = argc + jargc;
1640 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1641 int i;
1642
1643 *pargc = nargc;
1644 *pargv = nargv;
1645
1646 /* Copy the VM arguments (i.e. prefixed with -J) */
1647 for (i = 0; i < jargc; i++) {
1648 const char *arg = jargv[i];
1649 if (arg[0] == '-' && arg[1] == 'J') {
1650 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2);
1651 }
1652 }
1653
1654 for (i = 0; i < argc; i++) {
1655 char *arg = argv[i];
1656 if (arg[0] == '-' && arg[1] == 'J') {
1657 if (arg[2] == '\0') {
1658 JLI_ReportErrorMessage(ARG_ERROR3);
1659 exit(1);
1660 }
1661 *nargv++ = arg + 2;
1662 }
1663 }
1664
1665 /* Copy the rest of the arguments */
1666 for (i = 0; i < jargc ; i++) {
1667 const char *arg = jargv[i];
1668 if (arg[0] != '-' || arg[1] != 'J') {
1669 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg);
1670 }
1671 }
1672 for (i = 0; i < argc; i++) {
1673 char *arg = argv[i];
1674 if (arg[0] == '-') {
1675 if (arg[1] == 'J')
1676 continue;
1677 if (IsWildCardEnabled()) {
1678 if (IsClassPathOption(arg) && i < argc - 1) {
1679 *nargv++ = arg;
1680 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1681 i++;
1682 continue;
1683 }
1684 if (JLI_StrCCmp(arg, "--class-path=") == 0) {
1685 *nargv++ = expandWildcardOnLongOpt(arg);
1686 continue;
1687 }
1688 }
1689 }
1690 *nargv++ = arg;
1691 }
1692 *nargv = 0;
1693 }
1694
1695 /*
1696 * For our tools, we try to add 3 VM options:
1697 * -Denv.class.path=<envcp>
1698 * -Dapplication.home=<apphome>
1699 * -Djava.class.path=<appcp>
1700 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1701 * tells javac where to find binary classes through this environment
1702 * variable. Notice that users will be able to compile against our
1703 * tools classes (sun.tools.javac.Main) only if they explicitly add
1704 * tools.jar to CLASSPATH.
1705 * <apphome> is the directory where the application is installed.
1706 * <appcp> is the classpath to where our apps' classfiles are.
1707 */
1708 static jboolean
1709 AddApplicationOptions(int cpathc, const char **cpathv)
1710 {
1711 char *envcp, *appcp, *apphome;
1712 char home[MAXPATHLEN]; /* application home */
1713 char separator[] = { PATH_SEPARATOR, '\0' };
1714 int size, i;
1715
1716 {
1717 const char *s = getenv("CLASSPATH");
1718 if (s) {
1719 s = (char *) JLI_WildcardExpandClasspath(s);
1720 /* 40 for -Denv.class.path= */
1721 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow
1722 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40);
1723 sprintf(envcp, "-Denv.class.path=%s", s);
1724 AddOption(envcp, NULL);
1725 }
1726 }
1727 }
1728
1729 if (!GetApplicationHome(home, sizeof(home))) {
1730 JLI_ReportErrorMessage(CFG_ERROR5);
1731 return JNI_FALSE;
1732 }
1733
1734 /* 40 for '-Dapplication.home=' */
1735 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40);
1736 sprintf(apphome, "-Dapplication.home=%s", home);
1737 AddOption(apphome, NULL);
1738
1739 /* How big is the application's classpath? */
1740 if (cpathc > 0) {
1741 size = 40; /* 40: "-Djava.class.path=" */
1742 for (i = 0; i < cpathc; i++) {
1743 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */
1744 }
1745 appcp = (char *)JLI_MemAlloc(size + 1);
1746 JLI_StrCpy(appcp, "-Djava.class.path=");
1747 for (i = 0; i < cpathc; i++) {
1748 JLI_StrCat(appcp, home); /* c:\program files\myapp */
1749 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */
1750 JLI_StrCat(appcp, separator); /* ; */
1751 }
1752 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */
1753 AddOption(appcp, NULL);
1754 }
1755 return JNI_TRUE;
1756 }
1757
1758 /*
1759 * inject the -Dsun.java.command pseudo property into the args structure
1760 * this pseudo property is used in the HotSpot VM to expose the
1761 * Java class name and arguments to the main method to the VM. The
1762 * HotSpot VM uses this pseudo property to store the Java class name
1763 * (or jar file name) and the arguments to the class's main method
1764 * to the instrumentation memory region. The sun.java.command pseudo
1765 * property is not exported by HotSpot to the Java layer.
1766 */
1767 void
1768 SetJavaCommandLineProp(char *what, int argc, char **argv)
1769 {
1770
1771 int i = 0;
1772 size_t len = 0;
1773 char* javaCommand = NULL;
1774 char* dashDstr = "-Dsun.java.command=";
1775
1776 if (what == NULL) {
1777 /* unexpected, one of these should be set. just return without
1778 * setting the property
1779 */
1780 return;
1781 }
1782
1783 /* determine the amount of memory to allocate assuming
1784 * the individual components will be space separated
1785 */
1786 len = JLI_StrLen(what);
1787 for (i = 0; i < argc; i++) {
1788 len += JLI_StrLen(argv[i]) + 1;
1789 }
1790
1791 /* allocate the memory */
1792 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1);
1793
1794 /* build the -D string */
1795 *javaCommand = '\0';
1796 JLI_StrCat(javaCommand, dashDstr);
1797 JLI_StrCat(javaCommand, what);
1798
1799 for (i = 0; i < argc; i++) {
1800 /* the components of the string are space separated. In
1801 * the case of embedded white space, the relationship of
1802 * the white space separated components to their true
1803 * positional arguments will be ambiguous. This issue may
1804 * be addressed in a future release.
1805 */
1806 JLI_StrCat(javaCommand, " ");
1807 JLI_StrCat(javaCommand, argv[i]);
1808 }
1809
1810 AddOption(javaCommand, NULL);
1811 }
1812
1813 /*
1814 * JVM would like to know if it's created by a standard Sun launcher, or by
1815 * user native application, the following property indicates the former.
1816 */
1817 void
1818 SetJavaLauncherProp() {
1819 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL);
1820 }
1821
1822 /*
1823 * Prints the version information from the java.version and other properties.
1824 */
1825 static void
1826 PrintJavaVersion(JNIEnv *env, jboolean extraLF)
1827 {
1828 jclass ver;
1829 jmethodID print;
1830
1831 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps"));
1832 NULL_CHECK(print = (*env)->GetStaticMethodID(env,
1833 ver,
1834 (extraLF == JNI_TRUE) ? "println" : "print",
1835 "(Z)V"
1836 )
1837 );
1838
1839 (*env)->CallStaticVoidMethod(env, ver, print, printTo);
1840 }
1841
1842 /*
1843 * Prints all the Java settings, see the java implementation for more details.
1844 */
1845 static void
1846 ShowSettings(JNIEnv *env, char *optString)
1847 {
1848 jmethodID showSettingsID;
1849 jstring joptString;
1850 jclass cls = GetLauncherHelperClass(env);
1851 NULL_CHECK(cls);
1852 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls,
1853 "showSettings", "(ZLjava/lang/String;JJJ)V"));
1854 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1855 (*env)->CallStaticVoidMethod(env, cls, showSettingsID,
1856 USE_STDERR,
1857 joptString,
1858 (jlong)initialHeapSize,
1859 (jlong)maxHeapSize,
1860 (jlong)threadStackSize);
1861 }
1862
1863 /**
1864 * Show resolved modules
1865 */
1866 static void
1867 ShowResolvedModules(JNIEnv *env)
1868 {
1869 jmethodID showResolvedModulesID;
1870 jclass cls = GetLauncherHelperClass(env);
1871 NULL_CHECK(cls);
1872 NULL_CHECK(showResolvedModulesID = (*env)->GetStaticMethodID(env, cls,
1873 "showResolvedModules", "()V"));
1874 (*env)->CallStaticVoidMethod(env, cls, showResolvedModulesID);
1875 }
1876
1877 /**
1878 * List observable modules
1879 */
1880 static void
1881 ListModules(JNIEnv *env)
1882 {
1883 jmethodID listModulesID;
1884 jclass cls = GetLauncherHelperClass(env);
1885 NULL_CHECK(cls);
1886 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls,
1887 "listModules", "()V"));
1888 (*env)->CallStaticVoidMethod(env, cls, listModulesID);
1889 }
1890
1891 /**
1892 * Describe a module
1893 */
1894 static void
1895 DescribeModule(JNIEnv *env, char *optString)
1896 {
1897 jmethodID describeModuleID;
1898 jstring joptString = NULL;
1899 jclass cls = GetLauncherHelperClass(env);
1900 NULL_CHECK(cls);
1901 NULL_CHECK(describeModuleID = (*env)->GetStaticMethodID(env, cls,
1902 "describeModule", "(Ljava/lang/String;)V"));
1903 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1904 (*env)->CallStaticVoidMethod(env, cls, describeModuleID, joptString);
1905 }
1906
1907 /**
1908 * Validate modules
1909 */
1910 static jboolean
1911 ValidateModules(JNIEnv *env)
1912 {
1913 jmethodID validateModulesID;
1914 jclass cls = GetLauncherHelperClass(env);
1915 NULL_CHECK_RETURN_VALUE(cls, JNI_FALSE);
1916 validateModulesID = (*env)->GetStaticMethodID(env, cls, "validateModules", "()Z");
1917 NULL_CHECK_RETURN_VALUE(cls, JNI_FALSE);
1918 return (*env)->CallStaticBooleanMethod(env, cls, validateModulesID);
1919 }
1920
1921 /*
1922 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java
1923 */
1924 static void
1925 PrintUsage(JNIEnv* env, jboolean doXUsage)
1926 {
1927 jmethodID initHelp, vmSelect, vmSynonym, printHelp, printXUsageMessage;
1928 jstring jprogname, vm1, vm2;
1929 int i;
1930 jclass cls = GetLauncherHelperClass(env);
1931 NULL_CHECK(cls);
1932 if (doXUsage) {
1933 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls,
1934 "printXUsageMessage", "(Z)V"));
1935 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, printTo);
1936 } else {
1937 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls,
1938 "initHelpMessage", "(Ljava/lang/String;)V"));
1939
1940 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage",
1941 "(Ljava/lang/String;Ljava/lang/String;)V"));
1942
1943 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls,
1944 "appendVmSynonymMessage",
1945 "(Ljava/lang/String;Ljava/lang/String;)V"));
1946
1947 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls,
1948 "printHelpMessage", "(Z)V"));
1949
1950 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name));
1951
1952 /* Initialize the usage message with the usual preamble */
1953 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname);
1954 CHECK_EXCEPTION_RETURN();
1955
1956
1957 /* Assemble the other variant part of the usage */
1958 for (i=1; i<knownVMsCount; i++) {
1959 if (knownVMs[i].flag == VM_KNOWN) {
1960 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1961 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1));
1962 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
1963 CHECK_EXCEPTION_RETURN();
1964 }
1965 }
1966 for (i=1; i<knownVMsCount; i++) {
1967 if (knownVMs[i].flag == VM_ALIASED_TO) {
1968 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1969 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1));
1970 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2);
1971 CHECK_EXCEPTION_RETURN();
1972 }
1973 }
1974
1975 /* Complete the usage message and print to stderr*/
1976 (*env)->CallStaticVoidMethod(env, cls, printHelp, printTo);
1977 }
1978 return;
1979 }
1980
1981 /*
1982 * Read the jvm.cfg file and fill the knownJVMs[] array.
1983 *
1984 * The functionality of the jvm.cfg file is subject to change without
1985 * notice and the mechanism will be removed in the future.
1986 *
1987 * The lexical structure of the jvm.cfg file is as follows:
1988 *
1989 * jvmcfg := { vmLine }
1990 * vmLine := knownLine
1991 * | aliasLine
1992 * | warnLine
1993 * | ignoreLine
1994 * | errorLine
1995 * | predicateLine
1996 * | commentLine
1997 * knownLine := flag "KNOWN" EOL
1998 * warnLine := flag "WARN" EOL
1999 * ignoreLine := flag "IGNORE" EOL
2000 * errorLine := flag "ERROR" EOL
2001 * aliasLine := flag "ALIASED_TO" flag EOL
2002 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
2003 * commentLine := "#" text EOL
2004 * flag := "-" identifier
2005 *
2006 * The semantics are that when someone specifies a flag on the command line:
2007 * - if the flag appears on a knownLine, then the identifier is used as
2008 * the name of the directory holding the JVM library (the name of the JVM).
2009 * - if the flag appears as the first flag on an aliasLine, the identifier
2010 * of the second flag is used as the name of the JVM.
2011 * - if the flag appears on a warnLine, the identifier is used as the
2012 * name of the JVM, but a warning is generated.
2013 * - if the flag appears on an ignoreLine, the identifier is recognized as the
2014 * name of a JVM, but the identifier is ignored and the default vm used
2015 * - if the flag appears on an errorLine, an error is generated.
2016 * - if the flag appears as the first flag on a predicateLine, and
2017 * the machine on which you are running passes the predicate indicated,
2018 * then the identifier of the second flag is used as the name of the JVM,
2019 * otherwise the identifier of the first flag is used as the name of the JVM.
2020 * If no flag is given on the command line, the first vmLine of the jvm.cfg
2021 * file determines the name of the JVM.
2022 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
2023 * since they only make sense if someone hasn't specified the name of the
2024 * JVM on the command line.
2025 *
2026 * The intent of the jvm.cfg file is to allow several JVM libraries to
2027 * be installed in different subdirectories of a single JRE installation,
2028 * for space-savings and convenience in testing.
2029 * The intent is explicitly not to provide a full aliasing or predicate
2030 * mechanism.
2031 */
2032 jint
2033 ReadKnownVMs(const char *jvmCfgName, jboolean speculative)
2034 {
2035 FILE *jvmCfg;
2036 char line[MAXPATHLEN+20];
2037 int cnt = 0;
2038 int lineno = 0;
2039 jlong start, end;
2040 int vmType;
2041 char *tmpPtr;
2042 char *altVMName = NULL;
2043 char *serverClassVMName = NULL;
2044 static char *whiteSpace = " \t";
2045 if (JLI_IsTraceLauncher()) {
2046 start = CounterGet();
2047 }
2048
2049 jvmCfg = fopen(jvmCfgName, "r");
2050 if (jvmCfg == NULL) {
2051 if (!speculative) {
2052 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName);
2053 exit(1);
2054 } else {
2055 return -1;
2056 }
2057 }
2058 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
2059 vmType = VM_UNKNOWN;
2060 lineno++;
2061 if (line[0] == '#')
2062 continue;
2063 if (line[0] != '-') {
2064 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName);
2065 }
2066 if (cnt >= knownVMsLimit) {
2067 GrowKnownVMs(cnt);
2068 }
2069 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */
2070 tmpPtr = line + JLI_StrCSpn(line, whiteSpace);
2071 if (*tmpPtr == 0) {
2072 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2073 } else {
2074 /* Null-terminate this string for JLI_StringDup below */
2075 *tmpPtr++ = 0;
2076 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2077 if (*tmpPtr == 0) {
2078 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2079 } else {
2080 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) {
2081 vmType = VM_KNOWN;
2082 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) {
2083 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2084 if (*tmpPtr != 0) {
2085 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2086 }
2087 if (*tmpPtr == 0) {
2088 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2089 } else {
2090 /* Null terminate altVMName */
2091 altVMName = tmpPtr;
2092 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2093 *tmpPtr = 0;
2094 vmType = VM_ALIASED_TO;
2095 }
2096 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) {
2097 vmType = VM_WARN;
2098 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) {
2099 vmType = VM_IGNORE;
2100 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) {
2101 vmType = VM_ERROR;
2102 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) {
2103 /* ignored */
2104 } else {
2105 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]);
2106 vmType = VM_KNOWN;
2107 }
2108 }
2109 }
2110
2111 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line);
2112 if (vmType != VM_UNKNOWN) {
2113 knownVMs[cnt].name = JLI_StringDup(line);
2114 knownVMs[cnt].flag = vmType;
2115 switch (vmType) {
2116 default:
2117 break;
2118 case VM_ALIASED_TO:
2119 knownVMs[cnt].alias = JLI_StringDup(altVMName);
2120 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n",
2121 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
2122 break;
2123 }
2124 cnt++;
2125 }
2126 }
2127 fclose(jvmCfg);
2128 knownVMsCount = cnt;
2129
2130 if (JLI_IsTraceLauncher()) {
2131 end = CounterGet();
2132 printf("%ld micro seconds to parse jvm.cfg\n",
2133 (long)(jint)Counter2Micros(end-start));
2134 }
2135
2136 return cnt;
2137 }
2138
2139
2140 static void
2141 GrowKnownVMs(int minimum)
2142 {
2143 struct vmdesc* newKnownVMs;
2144 int newMax;
2145
2146 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
2147 if (newMax <= minimum) {
2148 newMax = minimum;
2149 }
2150 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
2151 if (knownVMs != NULL) {
2152 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
2153 }
2154 JLI_MemFree(knownVMs);
2155 knownVMs = newKnownVMs;
2156 knownVMsLimit = newMax;
2157 }
2158
2159
2160 /* Returns index of VM or -1 if not found */
2161 static int
2162 KnownVMIndex(const char* name)
2163 {
2164 int i;
2165 if (JLI_StrCCmp(name, "-J") == 0) name += 2;
2166 for (i = 0; i < knownVMsCount; i++) {
2167 if (!JLI_StrCmp(name, knownVMs[i].name)) {
2168 return i;
2169 }
2170 }
2171 return -1;
2172 }
2173
2174 static void
2175 FreeKnownVMs()
2176 {
2177 int i;
2178 for (i = 0; i < knownVMsCount; i++) {
2179 JLI_MemFree(knownVMs[i].name);
2180 knownVMs[i].name = NULL;
2181 }
2182 JLI_MemFree(knownVMs);
2183 }
2184
2185 /*
2186 * Displays the splash screen according to the jar file name
2187 * and image file names stored in environment variables
2188 */
2189 void
2190 ShowSplashScreen()
2191 {
2192 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
2193 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
2194 int data_size;
2195 void *image_data = NULL;
2196 float scale_factor = 1;
2197 char *scaled_splash_name = NULL;
2198 jboolean isImageScaled = JNI_FALSE;
2199 size_t maxScaledImgNameLength = 0;
2200 if (file_name == NULL){
2201 return;
2202 }
2203 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name);
2204
2205 scaled_splash_name = JLI_MemAlloc(
2206 maxScaledImgNameLength * sizeof(char));
2207 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name,
2208 &scale_factor,
2209 scaled_splash_name, maxScaledImgNameLength);
2210 if (jar_name) {
2211
2212 if (isImageScaled) {
2213 image_data = JLI_JarUnpackFile(
2214 jar_name, scaled_splash_name, &data_size);
2215 }
2216
2217 if (!image_data) {
2218 scale_factor = 1;
2219 image_data = JLI_JarUnpackFile(
2220 jar_name, file_name, &data_size);
2221 }
2222 if (image_data) {
2223 DoSplashInit();
2224 DoSplashSetScaleFactor(scale_factor);
2225 DoSplashLoadMemory(image_data, data_size);
2226 JLI_MemFree(image_data);
2227 }
2228 } else {
2229 DoSplashInit();
2230 if (isImageScaled) {
2231 DoSplashSetScaleFactor(scale_factor);
2232 DoSplashLoadFile(scaled_splash_name);
2233 } else {
2234 DoSplashLoadFile(file_name);
2235 }
2236 }
2237 JLI_MemFree(scaled_splash_name);
2238
2239 DoSplashSetFileJarName(file_name, jar_name);
2240
2241 /*
2242 * Done with all command line processing and potential re-execs so
2243 * clean up the environment.
2244 */
2245 (void)UnsetEnv(ENV_ENTRY);
2246 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
2247 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
2248
2249 JLI_MemFree(splash_jar_entry);
2250 JLI_MemFree(splash_file_entry);
2251
2252 }
2253
2254 const char*
2255 GetFullVersion()
2256 {
2257 return _fVersion;
2258 }
2259
2260 const char*
2261 GetProgramName()
2262 {
2263 return _program_name;
2264 }
2265
2266 const char*
2267 GetLauncherName()
2268 {
2269 return _launcher_name;
2270 }
2271
2272 jboolean
2273 IsJavaArgs()
2274 {
2275 return _is_java_args;
2276 }
2277
2278 static jboolean
2279 IsWildCardEnabled()
2280 {
2281 return _wc_enabled;
2282 }
2283
2284 int
2285 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize,
2286 int argc, char **argv,
2287 int mode, char *what, int ret)
2288 {
2289
2290 /*
2291 * If user doesn't specify stack size, check if VM has a preference.
2292 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
2293 * return its default stack size through the init args structure.
2294 */
2295 if (threadStackSize == 0) {
2296 struct JDK1_1InitArgs args1_1;
2297 memset((void*)&args1_1, 0, sizeof(args1_1));
2298 args1_1.version = JNI_VERSION_1_1;
2299 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
2300 if (args1_1.javaStackSize > 0) {
2301 threadStackSize = args1_1.javaStackSize;
2302 }
2303 }
2304
2305 { /* Create a new thread to create JVM and invoke main method */
2306 JavaMainArgs args;
2307 int rslt;
2308
2309 args.argc = argc;
2310 args.argv = argv;
2311 args.mode = mode;
2312 args.what = what;
2313 args.ifn = *ifn;
2314
2315 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args);
2316 /* If the caller has deemed there is an error we
2317 * simply return that, otherwise we return the value of
2318 * the callee
2319 */
2320 return (ret != 0) ? ret : rslt;
2321 }
2322 }
2323
2324 static void
2325 DumpState()
2326 {
2327 if (!JLI_IsTraceLauncher()) return ;
2328 printf("Launcher state:\n");
2329 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex());
2330 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off");
2331 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off");
2332 printf("\tprogram name:%s\n", GetProgramName());
2333 printf("\tlauncher name:%s\n", GetLauncherName());
2334 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off");
2335 printf("\tfullversion:%s\n", GetFullVersion());
2336 }
2337
2338 /*
2339 * A utility procedure to always print to stderr
2340 */
2341 JNIEXPORT void JNICALL
2342 JLI_ReportMessage(const char* fmt, ...)
2343 {
2344 va_list vl;
2345 va_start(vl, fmt);
2346 vfprintf(stderr, fmt, vl);
2347 fprintf(stderr, "\n");
2348 va_end(vl);
2349 }
2350
2351 /*
2352 * A utility procedure to always print to stdout
2353 */
2354 void
2355 JLI_ShowMessage(const char* fmt, ...)
2356 {
2357 va_list vl;
2358 va_start(vl, fmt);
2359 vfprintf(stdout, fmt, vl);
2360 fprintf(stdout, "\n");
2361 va_end(vl);
2362 }