1 /*
2 * Copyright (c) 1995, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /*
27 * Shared source for 'java' command line tool.
28 *
29 * If JAVA_ARGS is defined, then acts as a launcher for applications. For
30 * instance, the JDK command line tools such as javac and javadoc (see
31 * makefiles for more details) are built with this program. Any arguments
32 * prefixed with '-J' will be passed directly to the 'java' command.
33 */
34
35 /*
36 * One job of the launcher is to remove command line options which the
37 * vm does not understand and will not process. These options include
38 * options which select which style of vm is run (e.g. -client and
39 * -server) as well as options which select the data model to use.
40 * Additionally, for tools which invoke an underlying vm "-J-foo"
41 * options are turned into "-foo" options to the vm. This option
42 * filtering is handled in a number of places in the launcher, some of
43 * it in machine-dependent code. In this file, the function
44 * CheckJvmType removes vm style options and TranslateApplicationArgs
45 * removes "-J" prefixes. The CreateExecutionEnvironment function processes
46 * and removes -d<n> options. On unix, there is a possibility that the running
47 * data model may not match to the desired data model, in this case an exec is
48 * required to start the desired model. If the data models match, then
49 * ParseArguments will remove the -d<n> flags. If the data models do not match
50 * the CreateExecutionEnviroment will remove the -d<n> flags.
51 */
52
53
54 #include "java.h"
55
56 /*
57 * A NOTE TO DEVELOPERS: For performance reasons it is important that
58 * the program image remain relatively small until after SelectVersion
59 * CreateExecutionEnvironment have finished their possibly recursive
60 * processing. Watch everything, but resist all temptations to use Java
61 * interfaces.
62 */
63
64 /* we always print to stderr */
65 #define USE_STDERR JNI_TRUE
66
67 static jboolean printVersion = JNI_FALSE; /* print and exit */
68 static jboolean showVersion = JNI_FALSE; /* print but continue */
69 static jboolean printUsage = JNI_FALSE; /* print and exit*/
70 static jboolean printXUsage = JNI_FALSE; /* print and exit*/
71 static jboolean dryRun = JNI_FALSE; /* initialize VM and exit */
72 static char *showSettings = NULL; /* print but continue */
73 static char *listModules = NULL;
74
75 static const char *_program_name;
76 static const char *_launcher_name;
77 static jboolean _is_java_args = JNI_FALSE;
78 static jboolean _have_classpath = JNI_FALSE;
79 static const char *_fVersion;
80 static jboolean _wc_enabled = JNI_FALSE;
81 static jint _ergo_policy = DEFAULT_POLICY;
82
83 /*
84 * Entries for splash screen environment variables.
85 * putenv is performed in SelectVersion. We need
86 * them in memory until UnsetEnv, so they are made static
87 * global instead of auto local.
88 */
89 static char* splash_file_entry = NULL;
90 static char* splash_jar_entry = NULL;
91
92 /*
93 * List of VM options to be specified when the VM is created.
94 */
95 static JavaVMOption *options;
96 static int numOptions, maxOptions;
97
98 /*
99 * Prototypes for functions internal to launcher.
100 */
101 static void SetClassPath(const char *s);
102 static void SetMainModule(const char *s);
103 static void SelectVersion(int argc, char **argv, char **main_class);
104 static void SetJvmEnvironment(int argc, char **argv);
105 static jboolean ParseArguments(int *pargc, char ***pargv,
106 int *pmode, char **pwhat,
107 int *pret, const char *jrepath);
108 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv,
109 InvocationFunctions *ifn);
110 static jstring NewPlatformString(JNIEnv *env, char *s);
111 static jclass LoadMainClass(JNIEnv *env, int mode, char *name);
112 static jclass GetApplicationClass(JNIEnv *env);
113
114 static void TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv);
115 static jboolean AddApplicationOptions(int cpathc, const char **cpathv);
116 static void SetApplicationClassPath(const char**);
117
118 static void PrintJavaVersion(JNIEnv *env, jboolean extraLF);
119 static void PrintUsage(JNIEnv* env, jboolean doXUsage);
120 static void ShowSettings(JNIEnv* env, char *optString);
121 static void ListModules(JNIEnv* env, char *optString);
122
123 static void SetPaths(int argc, char **argv);
124
125 static void DumpState();
126 static jboolean RemovableOption(char *option);
127
128 enum OptionKind {
129 LAUNCHER_OPTION = 0,
130 LAUNCHER_OPTION_WITH_ARGUMENT,
131 LAUNCHER_MAIN_OPTION,
132 VM_LONG_OPTION,
133 VM_LONG_OPTION_WITH_ARGUMENT,
134 VM_OPTION
135 };
136
137 static int GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue);
138 static jboolean IsOptionWithArgument(int argc, char **argv);
139
140 /* Maximum supported entries from jvm.cfg. */
141 #define INIT_MAX_KNOWN_VMS 10
142
143 /* Values for vmdesc.flag */
144 enum vmdesc_flag {
145 VM_UNKNOWN = -1,
146 VM_KNOWN,
147 VM_ALIASED_TO,
148 VM_WARN,
149 VM_ERROR,
150 VM_IF_SERVER_CLASS,
151 VM_IGNORE
152 };
153
154 struct vmdesc {
155 char *name;
156 int flag;
157 char *alias;
158 char *server_class;
159 };
160 static struct vmdesc *knownVMs = NULL;
161 static int knownVMsCount = 0;
162 static int knownVMsLimit = 0;
163
164 static void GrowKnownVMs(int minimum);
165 static int KnownVMIndex(const char* name);
166 static void FreeKnownVMs();
167 static jboolean IsWildCardEnabled();
168
169 /*
170 * This reports error. VM will not be created and no usage is printed.
171 */
172 #define REPORT_ERROR(AC_ok, AC_failure_message, AC_questionable_arg) \
173 do { \
174 if (!AC_ok) { \
175 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
176 printUsage = JNI_FALSE; \
177 *pret = 1; \
178 return JNI_FALSE; \
179 } \
180 } while (JNI_FALSE)
181
182 #define ARG_CHECK(AC_arg_count, AC_failure_message, AC_questionable_arg) \
183 do { \
184 if (AC_arg_count < 1) { \
185 JLI_ReportErrorMessage(AC_failure_message, AC_questionable_arg); \
186 printUsage = JNI_TRUE; \
187 *pret = 1; \
188 return JNI_TRUE; \
189 } \
190 } while (JNI_FALSE)
191
192 /*
193 * Running Java code in primordial thread caused many problems. We will
194 * create a new thread to invoke JVM. See 6316197 for more information.
195 */
196 static jlong threadStackSize = 0; /* stack size of the new thread */
197 static jlong maxHeapSize = 0; /* max heap size */
198 static jlong initialHeapSize = 0; /* inital heap size */
199
200 /*
201 * A minimum -Xss stack size suitable for all platforms.
202 */
203 #ifndef STACK_SIZE_MINIMUM
204 #define STACK_SIZE_MINIMUM (32 * KB)
205 #endif
206
207 /*
208 * Entry point.
209 */
210 int
211 JLI_Launch(int argc, char ** argv, /* main argc, argc */
212 int jargc, const char** jargv, /* java args */
213 int appclassc, const char** appclassv, /* app classpath */
214 const char* fullversion, /* full version defined */
215 const char* dotversion, /* UNUSED dot version defined */
216 const char* pname, /* program name */
217 const char* lname, /* launcher name */
218 jboolean javaargs, /* JAVA_ARGS */
219 jboolean cpwildcard, /* classpath wildcard*/
220 jboolean javaw, /* windows-only javaw */
221 jint ergo /* ergonomics class policy */
222 )
223 {
224 int mode = LM_UNKNOWN;
225 char *what = NULL;
226 char *main_class = NULL;
227 int ret;
228 InvocationFunctions ifn;
229 jlong start, end;
230 char jvmpath[MAXPATHLEN];
231 char jrepath[MAXPATHLEN];
232 char jvmcfg[MAXPATHLEN];
233
234 _fVersion = fullversion;
235 _launcher_name = lname;
236 _program_name = pname;
237 _is_java_args = javaargs;
238 _wc_enabled = cpwildcard;
239 _ergo_policy = ergo;
240
241 InitLauncher(javaw);
242 DumpState();
243 if (JLI_IsTraceLauncher()) {
244 int i;
245 printf("Command line args:\n");
246 for (i = 0; i < argc ; i++) {
247 printf("argv[%d] = %s\n", i, argv[i]);
248 }
249 AddOption("-Dsun.java.launcher.diag=true", NULL);
250 }
251
252 /*
253 * SelectVersion() has several responsibilities:
254 *
255 * 1) Disallow specification of another JRE. With 1.9, another
256 * version of the JRE cannot be invoked.
257 * 2) Allow for a JRE version to invoke JDK 1.9 or later. Since
258 * all mJRE directives have been stripped from the request but
259 * the pre 1.9 JRE [ 1.6 thru 1.8 ], it is as if 1.9+ has been
260 * invoked from the command line.
261 */
262 SelectVersion(argc, argv, &main_class);
263
264 CreateExecutionEnvironment(&argc, &argv,
265 jrepath, sizeof(jrepath),
266 jvmpath, sizeof(jvmpath),
267 jvmcfg, sizeof(jvmcfg));
268
269 if (!IsJavaArgs()) {
270 SetJvmEnvironment(argc,argv);
271 }
272
273 ifn.CreateJavaVM = 0;
274 ifn.GetDefaultJavaVMInitArgs = 0;
275
276 if (JLI_IsTraceLauncher()) {
277 start = CounterGet();
278 }
279
280 if (!LoadJavaVM(jvmpath, &ifn)) {
281 return(6);
282 }
283
284 if (JLI_IsTraceLauncher()) {
285 end = CounterGet();
286 }
287
288 JLI_TraceLauncher("%ld micro seconds to LoadJavaVM\n",
289 (long)(jint)Counter2Micros(end-start));
290
291 ++argv;
292 --argc;
293
294 if (IsJavaArgs()) {
295 /* Preprocess wrapper arguments */
296 TranslateApplicationArgs(jargc, jargv, &argc, &argv);
297 if (!AddApplicationOptions(appclassc, appclassv)) {
298 return(1);
299 }
300 } else {
301 /* Set default CLASSPATH */
302 char* cpath = getenv("CLASSPATH");
303 if (cpath != NULL) {
304 SetClassPath(cpath);
305 }
306 }
307
308 /* Parse command line options; if the return value of
309 * ParseArguments is false, the program should exit.
310 */
311 if (!ParseArguments(&argc, &argv, &mode, &what, &ret, jrepath))
312 {
313 return(ret);
314 }
315
316 /* Override class path if -jar flag was specified */
317 if (mode == LM_JAR) {
318 SetClassPath(what); /* Override class path */
319 }
320
321 /* set the -Dsun.java.command pseudo property */
322 SetJavaCommandLineProp(what, argc, argv);
323
324 /* Set the -Dsun.java.launcher pseudo property */
325 SetJavaLauncherProp();
326
327 /* set the -Dsun.java.launcher.* platform properties */
328 SetJavaLauncherPlatformProps();
329
330 return JVMInit(&ifn, threadStackSize, argc, argv, mode, what, ret);
331 }
332 /*
333 * Always detach the main thread so that it appears to have ended when
334 * the application's main method exits. This will invoke the
335 * uncaught exception handler machinery if main threw an
336 * exception. An uncaught exception handler cannot change the
337 * launcher's return code except by calling System.exit.
338 *
339 * Wait for all non-daemon threads to end, then destroy the VM.
340 * This will actually create a trivial new Java waiter thread
341 * named "DestroyJavaVM", but this will be seen as a different
342 * thread from the one that executed main, even though they are
343 * the same C thread. This allows mainThread.join() and
344 * mainThread.isAlive() to work as expected.
345 */
346 #define LEAVE() \
347 do { \
348 if ((*vm)->DetachCurrentThread(vm) != JNI_OK) { \
349 JLI_ReportErrorMessage(JVM_ERROR2); \
350 ret = 1; \
351 } \
352 if (JNI_TRUE) { \
353 (*vm)->DestroyJavaVM(vm); \
354 return ret; \
355 } \
356 } while (JNI_FALSE)
357
358 #define CHECK_EXCEPTION_NULL_LEAVE(CENL_exception) \
359 do { \
360 if ((*env)->ExceptionOccurred(env)) { \
361 JLI_ReportExceptionDescription(env); \
362 LEAVE(); \
363 } \
364 if ((CENL_exception) == NULL) { \
365 JLI_ReportErrorMessage(JNI_ERROR); \
366 LEAVE(); \
367 } \
368 } while (JNI_FALSE)
369
370 #define CHECK_EXCEPTION_LEAVE(CEL_return_value) \
371 do { \
372 if ((*env)->ExceptionOccurred(env)) { \
373 JLI_ReportExceptionDescription(env); \
374 ret = (CEL_return_value); \
375 LEAVE(); \
376 } \
377 } while (JNI_FALSE)
378
379 #define CHECK_EXCEPTION_PRINT() \
380 do { \
381 if ((*env)->ExceptionOccurred(env)) { \
382 JLI_ReportExceptionDescription(env); \
383 } \
384 } while (JNI_FALSE)
385
386 int JNICALL
387 JavaMain(void * _args)
388 {
389 JavaMainArgs *args = (JavaMainArgs *)_args;
390 int argc = args->argc;
391 char **argv = args->argv;
392 int mode = args->mode;
393 char *what = args->what;
394 InvocationFunctions ifn = args->ifn;
395
396 JavaVM *vm = 0;
397 JNIEnv *env = 0;
398 jclass mainClass = NULL;
399 jclass appClass = NULL; // actual application class being launched
400 jmethodID mainID;
401 jobjectArray mainArgs;
402 int ret = 0;
403 jlong start, end;
404
405 RegisterThread();
406
407 /* Initialize the virtual machine */
408 start = CounterGet();
409 if (!InitializeJVM(&vm, &env, &ifn)) {
410 JLI_ReportErrorMessage(JVM_ERROR1);
411 exit(1);
412 }
413
414 if (showSettings != NULL) {
415 ShowSettings(env, showSettings);
416 CHECK_EXCEPTION_LEAVE(1);
417 }
418
419 if (listModules != NULL) {
420 ListModules(env, listModules);
421 CHECK_EXCEPTION_LEAVE(1);
422 LEAVE();
423 }
424
425 if (printVersion || showVersion) {
426 PrintJavaVersion(env, showVersion);
427 CHECK_EXCEPTION_LEAVE(0);
428 if (printVersion) {
429 LEAVE();
430 }
431 }
432
433 /* If the user specified neither a class name nor a JAR file */
434 if (printXUsage || printUsage || what == 0 || mode == LM_UNKNOWN) {
435 PrintUsage(env, printXUsage);
436 CHECK_EXCEPTION_LEAVE(1);
437 LEAVE();
438 }
439
440 FreeKnownVMs(); /* after last possible PrintUsage() */
441
442 if (JLI_IsTraceLauncher()) {
443 end = CounterGet();
444 JLI_TraceLauncher("%ld micro seconds to InitializeJVM\n",
445 (long)(jint)Counter2Micros(end-start));
446 }
447
448 /* At this stage, argc/argv have the application's arguments */
449 if (JLI_IsTraceLauncher()){
450 int i;
451 printf("%s is '%s'\n", launchModeNames[mode], what);
452 printf("App's argc is %d\n", argc);
453 for (i=0; i < argc; i++) {
454 printf(" argv[%2d] = '%s'\n", i, argv[i]);
455 }
456 }
457
458 ret = 1;
459
460 /*
461 * Get the application's main class. It also checks if the main
462 * method exists.
463 *
464 * See bugid 5030265. The Main-Class name has already been parsed
465 * from the manifest, but not parsed properly for UTF-8 support.
466 * Hence the code here ignores the value previously extracted and
467 * uses the pre-existing code to reextract the value. This is
468 * possibly an end of release cycle expedient. However, it has
469 * also been discovered that passing some character sets through
470 * the environment has "strange" behavior on some variants of
471 * Windows. Hence, maybe the manifest parsing code local to the
472 * launcher should never be enhanced.
473 *
474 * Hence, future work should either:
475 * 1) Correct the local parsing code and verify that the
476 * Main-Class attribute gets properly passed through
477 * all environments,
478 * 2) Remove the vestages of maintaining main_class through
479 * the environment (and remove these comments).
480 *
481 * This method also correctly handles launching existing JavaFX
482 * applications that may or may not have a Main-Class manifest entry.
483 */
484 mainClass = LoadMainClass(env, mode, what);
485 CHECK_EXCEPTION_NULL_LEAVE(mainClass);
486 /*
487 * In some cases when launching an application that needs a helper, e.g., a
488 * JavaFX application with no main method, the mainClass will not be the
489 * applications own main class but rather a helper class. To keep things
490 * consistent in the UI we need to track and report the application main class.
491 */
492 appClass = GetApplicationClass(env);
493 NULL_CHECK_RETURN_VALUE(appClass, -1);
494
495 /* Build platform specific argument array */
496 mainArgs = CreateApplicationArgs(env, argv, argc);
497 CHECK_EXCEPTION_NULL_LEAVE(mainArgs);
498
499 if (dryRun) {
500 ret = 0;
501 LEAVE();
502 }
503
504 /*
505 * PostJVMInit uses the class name as the application name for GUI purposes,
506 * for example, on OSX this sets the application name in the menu bar for
507 * both SWT and JavaFX. So we'll pass the actual application class here
508 * instead of mainClass as that may be a launcher or helper class instead
509 * of the application class.
510 */
511 PostJVMInit(env, appClass, vm);
512 CHECK_EXCEPTION_LEAVE(1);
513
514 /*
515 * The LoadMainClass not only loads the main class, it will also ensure
516 * that the main method's signature is correct, therefore further checking
517 * is not required. The main method is invoked here so that extraneous java
518 * stacks are not in the application stack trace.
519 */
520 mainID = (*env)->GetStaticMethodID(env, mainClass, "main",
521 "([Ljava/lang/String;)V");
522 CHECK_EXCEPTION_NULL_LEAVE(mainID);
523
524 /* Invoke main method. */
525 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs);
526
527 /*
528 * The launcher's exit code (in the absence of calls to
529 * System.exit) will be non-zero if main threw an exception.
530 */
531 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1;
532
533 LEAVE();
534 }
535
536 /*
537 * Test if the given name is one of the class path options.
538 */
539 static jboolean
540 IsClassPathOption(const char* name) {
541 return JLI_StrCmp(name, "-classpath") == 0 ||
542 JLI_StrCmp(name, "-cp") == 0 ||
543 JLI_StrCmp(name, "--class-path") == 0;
544 }
545
546 /*
547 * Test if the given name is a launcher option taking the main entry point.
548 */
549 static jboolean
550 IsLauncherMainOption(const char* name) {
551 return JLI_StrCmp(name, "--module") == 0 ||
552 JLI_StrCmp(name, "-m") == 0;
553 }
554
555 /*
556 * Test if the given name is a white-space launcher option.
557 */
558 static jboolean
559 IsLauncherOption(const char* name) {
560 return IsClassPathOption(name) ||
561 IsLauncherMainOption(name) ||
562 JLI_StrCmp(name, "--list-modules") == 0;
563 }
564
565 #ifndef OLD_MODULE_OPTIONS
566 /*
567 * Old module options for transition
568 */
569 static jboolean
570 IsOldModuleOption(const char* name) {
571 return JLI_StrCmp(name, "-modulepath") == 0 ||
572 JLI_StrCmp(name, "-mp") == 0 ||
573 JLI_StrCmp(name, "-upgrademodulepath") == 0 ||
574 JLI_StrCmp(name, "-addmods") == 0 ||
575 JLI_StrCmp(name, "-limitmods") == 0;
576 }
577 #endif
578
579 /*
580 * Test if the given name is a module-system white-space option that
581 * will be passed to the VM with its corresponding long-form option
582 * name and "=" delimiter.
583 */
584 static jboolean
585 IsModuleOption(const char* name) {
586 return JLI_StrCmp(name, "--module-path") == 0 ||
587 JLI_StrCmp(name, "-p") == 0 ||
588 JLI_StrCmp(name, "--upgrade-module-path") == 0 ||
589 JLI_StrCmp(name, "--add-modules") == 0 ||
590 JLI_StrCmp(name, "--limit-modules") == 0 ||
591 JLI_StrCmp(name, "--add-exports") == 0 ||
592 JLI_StrCmp(name, "--add-reads") == 0 ||
593 JLI_StrCmp(name, "--patch-module") == 0 ||
594 IsOldModuleOption(name);
595 }
596
597 /*
598 * Test if the given name has a white space option.
599 */
600 jboolean
601 IsWhiteSpaceOption(const char* name) {
602 return IsModuleOption(name) ||
603 IsLauncherOption(name);
604 }
605
606 /*
607 * Checks the command line options to find which JVM type was
608 * specified. If no command line option was given for the JVM type,
609 * the default type is used. The environment variable
610 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also
611 * checked as ways of specifying which JVM type to invoke.
612 */
613 char *
614 CheckJvmType(int *pargc, char ***argv, jboolean speculative) {
615 int i, argi;
616 int argc;
617 char **newArgv;
618 int newArgvIdx = 0;
619 int isVMType;
620 int jvmidx = -1;
621 char *jvmtype = getenv("JDK_ALTERNATE_VM");
622
623 argc = *pargc;
624
625 /* To make things simpler we always copy the argv array */
626 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *));
627
628 /* The program name is always present */
629 newArgv[newArgvIdx++] = (*argv)[0];
630
631 for (argi = 1; argi < argc; argi++) {
632 char *arg = (*argv)[argi];
633 isVMType = 0;
634
635 if (IsJavaArgs()) {
636 if (arg[0] != '-') {
637 newArgv[newArgvIdx++] = arg;
638 continue;
639 }
640 } else {
641 if (IsWhiteSpaceOption(arg)) {
642 newArgv[newArgvIdx++] = arg;
643 argi++;
644 if (argi < argc) {
645 newArgv[newArgvIdx++] = (*argv)[argi];
646 }
647 continue;
648 }
649 if (arg[0] != '-') break;
650 }
651
652 /* Did the user pass an explicit VM type? */
653 i = KnownVMIndex(arg);
654 if (i >= 0) {
655 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */
656 isVMType = 1;
657 *pargc = *pargc - 1;
658 }
659
660 /* Did the user specify an "alternate" VM? */
661 else if (JLI_StrCCmp(arg, "-XXaltjvm=") == 0 || JLI_StrCCmp(arg, "-J-XXaltjvm=") == 0) {
662 isVMType = 1;
663 jvmtype = arg+((arg[1]=='X')? 10 : 12);
664 jvmidx = -1;
665 }
666
667 if (!isVMType) {
668 newArgv[newArgvIdx++] = arg;
669 }
670 }
671
672 /*
673 * Finish copying the arguments if we aborted the above loop.
674 * NOTE that if we aborted via "break" then we did NOT copy the
675 * last argument above, and in addition argi will be less than
676 * argc.
677 */
678 while (argi < argc) {
679 newArgv[newArgvIdx++] = (*argv)[argi];
680 argi++;
681 }
682
683 /* argv is null-terminated */
684 newArgv[newArgvIdx] = 0;
685
686 /* Copy back argv */
687 *argv = newArgv;
688 *pargc = newArgvIdx;
689
690 /* use the default VM type if not specified (no alias processing) */
691 if (jvmtype == NULL) {
692 char* result = knownVMs[0].name+1;
693 /* Use a different VM type if we are on a server class machine? */
694 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) &&
695 (ServerClassMachine() == JNI_TRUE)) {
696 result = knownVMs[0].server_class+1;
697 }
698 JLI_TraceLauncher("Default VM: %s\n", result);
699 return result;
700 }
701
702 /* if using an alternate VM, no alias processing */
703 if (jvmidx < 0)
704 return jvmtype;
705
706 /* Resolve aliases first */
707 {
708 int loopCount = 0;
709 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) {
710 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias);
711
712 if (loopCount > knownVMsCount) {
713 if (!speculative) {
714 JLI_ReportErrorMessage(CFG_ERROR1);
715 exit(1);
716 } else {
717 return "ERROR";
718 /* break; */
719 }
720 }
721
722 if (nextIdx < 0) {
723 if (!speculative) {
724 JLI_ReportErrorMessage(CFG_ERROR2, knownVMs[jvmidx].alias);
725 exit(1);
726 } else {
727 return "ERROR";
728 }
729 }
730 jvmidx = nextIdx;
731 jvmtype = knownVMs[jvmidx].name+1;
732 loopCount++;
733 }
734 }
735
736 switch (knownVMs[jvmidx].flag) {
737 case VM_WARN:
738 if (!speculative) {
739 JLI_ReportErrorMessage(CFG_WARN1, jvmtype, knownVMs[0].name + 1);
740 }
741 /* fall through */
742 case VM_IGNORE:
743 jvmtype = knownVMs[jvmidx=0].name + 1;
744 /* fall through */
745 case VM_KNOWN:
746 break;
747 case VM_ERROR:
748 if (!speculative) {
749 JLI_ReportErrorMessage(CFG_ERROR3, jvmtype);
750 exit(1);
751 } else {
752 return "ERROR";
753 }
754 }
755
756 return jvmtype;
757 }
758
759 /*
760 * static void SetJvmEnvironment(int argc, char **argv);
761 * Is called just before the JVM is loaded. We can set env variables
762 * that are consumed by the JVM. This function is non-destructive,
763 * leaving the arg list intact. The first use is for the JVM flag
764 * -XX:NativeMemoryTracking=value.
765 */
766 static void
767 SetJvmEnvironment(int argc, char **argv) {
768
769 static const char* NMT_Env_Name = "NMT_LEVEL_";
770 int i;
771 for (i = 0; i < argc; i++) {
772 char *arg = argv[i];
773 /*
774 * Since this must be a VM flag we stop processing once we see
775 * an argument the launcher would not have processed beyond (such
776 * as -version or -h), or an argument that indicates the following
777 * arguments are for the application (i.e. the main class name, or
778 * the -jar argument).
779 */
780 if (i > 0) {
781 char *prev = argv[i - 1];
782 // skip non-dash arg preceded by class path specifiers
783 if (*arg != '-' && IsWhiteSpaceOption(prev)) {
784 continue;
785 }
786
787 if (*arg != '-'
788 || JLI_StrCmp(arg, "-version") == 0
789 || JLI_StrCmp(arg, "-fullversion") == 0
790 || JLI_StrCmp(arg, "-help") == 0
791 || JLI_StrCmp(arg, "--help") == 0
792 || JLI_StrCmp(arg, "-?") == 0
793 || JLI_StrCmp(arg, "-jar") == 0
794 || JLI_StrCmp(arg, "-X") == 0) {
795 return;
796 }
797 }
798 /*
799 * The following case checks for "-XX:NativeMemoryTracking=value".
800 * If value is non null, an environmental variable set to this value
801 * will be created to be used by the JVM.
802 * The argument is passed to the JVM, which will check validity.
803 * The JVM is responsible for removing the env variable.
804 */
805 if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) {
806 int retval;
807 // get what follows this parameter, include "="
808 size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking=");
809 if (JLI_StrLen(arg) > pnlen) {
810 char* value = arg + pnlen;
811 size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits
812
813 /*
814 * ensures that malloc successful
815 * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call
816 * that could store the address.
817 */
818 char * pbuf = (char*)JLI_MemAlloc(pbuflen);
819
820 JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value);
821 retval = JLI_PutEnv(pbuf);
822 if (JLI_IsTraceLauncher()) {
823 char* envName;
824 char* envBuf;
825
826 // ensures that malloc successful
827 envName = (char*)JLI_MemAlloc(pbuflen);
828 JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid());
829
830 printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName);
831 printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf);
832 envBuf = getenv(envName);
833 printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf);
834 free(envName);
835 }
836
837 }
838
839 }
840
841 }
842 }
843
844 /* copied from HotSpot function "atomll()" */
845 static int
846 parse_size(const char *s, jlong *result) {
847 jlong n = 0;
848 int args_read = sscanf(s, JLONG_FORMAT_SPECIFIER, &n);
849 if (args_read != 1) {
850 return 0;
851 }
852 while (*s != '\0' && *s >= '0' && *s <= '9') {
853 s++;
854 }
855 // 4705540: illegal if more characters are found after the first non-digit
856 if (JLI_StrLen(s) > 1) {
857 return 0;
858 }
859 switch (*s) {
860 case 'T': case 't':
861 *result = n * GB * KB;
862 return 1;
863 case 'G': case 'g':
864 *result = n * GB;
865 return 1;
866 case 'M': case 'm':
867 *result = n * MB;
868 return 1;
869 case 'K': case 'k':
870 *result = n * KB;
871 return 1;
872 case '\0':
873 *result = n;
874 return 1;
875 default:
876 /* Create JVM with default stack and let VM handle malformed -Xss string*/
877 return 0;
878 }
879 }
880
881 /*
882 * Adds a new VM option with the given name and value.
883 */
884 void
885 AddOption(char *str, void *info)
886 {
887 /*
888 * Expand options array if needed to accommodate at least one more
889 * VM option.
890 */
891 if (numOptions >= maxOptions) {
892 if (options == 0) {
893 maxOptions = 4;
894 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
895 } else {
896 JavaVMOption *tmp;
897 maxOptions *= 2;
898 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption));
899 memcpy(tmp, options, numOptions * sizeof(JavaVMOption));
900 JLI_MemFree(options);
901 options = tmp;
902 }
903 }
904 options[numOptions].optionString = str;
905 options[numOptions++].extraInfo = info;
906
907 if (JLI_StrCCmp(str, "-Xss") == 0) {
908 jlong tmp;
909 if (parse_size(str + 4, &tmp)) {
910 threadStackSize = tmp;
911 /*
912 * Make sure the thread stack size is big enough that we won't get a stack
913 * overflow before the JVM startup code can check to make sure the stack
914 * is big enough.
915 */
916 if (threadStackSize < (jlong)STACK_SIZE_MINIMUM) {
917 threadStackSize = STACK_SIZE_MINIMUM;
918 }
919 }
920 }
921
922 if (JLI_StrCCmp(str, "-Xmx") == 0) {
923 jlong tmp;
924 if (parse_size(str + 4, &tmp)) {
925 maxHeapSize = tmp;
926 }
927 }
928
929 if (JLI_StrCCmp(str, "-Xms") == 0) {
930 jlong tmp;
931 if (parse_size(str + 4, &tmp)) {
932 initialHeapSize = tmp;
933 }
934 }
935 }
936
937 static void
938 SetClassPath(const char *s)
939 {
940 char *def;
941 const char *orig = s;
942 static const char format[] = "-Djava.class.path=%s";
943 /*
944 * usually we should not get a null pointer, but there are cases where
945 * we might just get one, in which case we simply ignore it, and let the
946 * caller deal with it
947 */
948 if (s == NULL)
949 return;
950 s = JLI_WildcardExpandClasspath(s);
951 if (sizeof(format) - 2 + JLI_StrLen(s) < JLI_StrLen(s))
952 // s is became corrupted after expanding wildcards
953 return;
954 def = JLI_MemAlloc(sizeof(format)
955 - 2 /* strlen("%s") */
956 + JLI_StrLen(s));
957 sprintf(def, format, s);
958 AddOption(def, NULL);
959 if (s != orig)
960 JLI_MemFree((char *) s);
961 _have_classpath = JNI_TRUE;
962 }
963
964 static void
965 AddLongFormOption(const char *option, const char *arg)
966 {
967 static const char format[] = "%s=%s";
968 char *def;
969 size_t def_len;
970
971 def_len = JLI_StrLen(option) + 1 + JLI_StrLen(arg) + 1;
972 def = JLI_MemAlloc(def_len);
973 JLI_Snprintf(def, def_len, format, option, arg);
974 AddOption(def, NULL);
975 }
976
977 static void
978 SetMainModule(const char *s)
979 {
980 static const char format[] = "-Djdk.module.main=%s";
981 char* slash = JLI_StrChr(s, '/');
982 size_t s_len, def_len;
983 char *def;
984
985 /* value may be <module> or <module>/<mainclass> */
986 if (slash == NULL) {
987 s_len = JLI_StrLen(s);
988 } else {
989 s_len = (size_t) (slash - s);
990 }
991 def_len = sizeof(format)
992 - 2 /* strlen("%s") */
993 + s_len;
994 def = JLI_MemAlloc(def_len);
995 JLI_Snprintf(def, def_len, format, s);
996 AddOption(def, NULL);
997 }
998
999 /*
1000 * The SelectVersion() routine ensures that an appropriate version of
1001 * the JRE is running. The specification for the appropriate version
1002 * is obtained from either the manifest of a jar file (preferred) or
1003 * from command line options.
1004 * The routine also parses splash screen command line options and
1005 * passes on their values in private environment variables.
1006 */
1007 static void
1008 SelectVersion(int argc, char **argv, char **main_class)
1009 {
1010 char *arg;
1011 char *operand;
1012 char *version = NULL;
1013 char *jre = NULL;
1014 int jarflag = 0;
1015 int headlessflag = 0;
1016 int restrict_search = -1; /* -1 implies not known */
1017 manifest_info info;
1018 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "=";
1019 char *splash_file_name = NULL;
1020 char *splash_jar_name = NULL;
1021 char *env_in;
1022 int res;
1023 jboolean has_arg;
1024
1025 /*
1026 * If the version has already been selected, set *main_class
1027 * with the value passed through the environment (if any) and
1028 * simply return.
1029 */
1030
1031 /*
1032 * This environmental variable can be set by mJRE capable JREs
1033 * [ 1.5 thru 1.8 ]. All other aspects of mJRE processing have been
1034 * stripped by those JREs. This environmental variable allows 1.9+
1035 * JREs to be started by these mJRE capable JREs.
1036 * Note that mJRE directives in the jar manifest file would have been
1037 * ignored for a JRE started by another JRE...
1038 * .. skipped for JRE 1.5 and beyond.
1039 * .. not even checked for pre 1.5.
1040 */
1041 if ((env_in = getenv(ENV_ENTRY)) != NULL) {
1042 if (*env_in != '\0')
1043 *main_class = JLI_StringDup(env_in);
1044 return;
1045 }
1046
1047 /*
1048 * Scan through the arguments for options relevant to multiple JRE
1049 * support. Multiple JRE support existed in JRE versions 1.5 thru 1.8.
1050 *
1051 * This capability is no longer available with JRE versions 1.9 and later.
1052 * These command line options are reported as errors.
1053 */
1054
1055 argc--;
1056 argv++;
1057 while ((arg = *argv) != 0 && *arg == '-') {
1058 has_arg = IsOptionWithArgument(argc, argv);
1059 if (JLI_StrCCmp(arg, "-version:") == 0) {
1060 JLI_ReportErrorMessage(SPC_ERROR1);
1061 } else if (JLI_StrCmp(arg, "-jre-restrict-search") == 0) {
1062 JLI_ReportErrorMessage(SPC_ERROR2);
1063 } else if (JLI_StrCmp(arg, "-jre-no-restrict-search") == 0) {
1064 JLI_ReportErrorMessage(SPC_ERROR2);
1065 } else {
1066 if (JLI_StrCmp(arg, "-jar") == 0)
1067 jarflag = 1;
1068 if (IsWhiteSpaceOption(arg)) {
1069 if (has_arg) {
1070 argc--;
1071 argv++;
1072 arg = *argv;
1073 }
1074 }
1075
1076 /*
1077 * Checking for headless toolkit option in the some way as AWT does:
1078 * "true" means true and any other value means false
1079 */
1080 if (JLI_StrCmp(arg, "-Djava.awt.headless=true") == 0) {
1081 headlessflag = 1;
1082 } else if (JLI_StrCCmp(arg, "-Djava.awt.headless=") == 0) {
1083 headlessflag = 0;
1084 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1085 splash_file_name = arg+8;
1086 }
1087 }
1088 argc--;
1089 argv++;
1090 }
1091 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */
1092 operand = NULL;
1093 } else {
1094 argc--;
1095 operand = *argv++;
1096 }
1097
1098 /*
1099 * If there is a jar file, read the manifest. If the jarfile can't be
1100 * read, the manifest can't be read from the jar file, or the manifest
1101 * is corrupt, issue the appropriate error messages and exit.
1102 *
1103 * Even if there isn't a jar file, construct a manifest_info structure
1104 * containing the command line information. It's a convenient way to carry
1105 * this data around.
1106 */
1107 if (jarflag && operand) {
1108 if ((res = JLI_ParseManifest(operand, &info)) != 0) {
1109 if (res == -1)
1110 JLI_ReportErrorMessage(JAR_ERROR2, operand);
1111 else
1112 JLI_ReportErrorMessage(JAR_ERROR3, operand);
1113 exit(1);
1114 }
1115
1116 /*
1117 * Command line splash screen option should have precedence
1118 * over the manifest, so the manifest data is used only if
1119 * splash_file_name has not been initialized above during command
1120 * line parsing
1121 */
1122 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) {
1123 splash_file_name = info.splashscreen_image_file_name;
1124 splash_jar_name = operand;
1125 }
1126 } else {
1127 info.manifest_version = NULL;
1128 info.main_class = NULL;
1129 info.jre_version = NULL;
1130 info.jre_restrict_search = 0;
1131 }
1132
1133 /*
1134 * Passing on splash screen info in environment variables
1135 */
1136 if (splash_file_name && !headlessflag) {
1137 char* splash_file_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_FILE_ENV_ENTRY "=")+JLI_StrLen(splash_file_name)+1);
1138 JLI_StrCpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "=");
1139 JLI_StrCat(splash_file_entry, splash_file_name);
1140 putenv(splash_file_entry);
1141 }
1142 if (splash_jar_name && !headlessflag) {
1143 char* splash_jar_entry = JLI_MemAlloc(JLI_StrLen(SPLASH_JAR_ENV_ENTRY "=")+JLI_StrLen(splash_jar_name)+1);
1144 JLI_StrCpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "=");
1145 JLI_StrCat(splash_jar_entry, splash_jar_name);
1146 putenv(splash_jar_entry);
1147 }
1148
1149
1150 /*
1151 * "Valid" returns (other than unrecoverable errors) follow. Set
1152 * main_class as a side-effect of this routine.
1153 */
1154 if (info.main_class != NULL)
1155 *main_class = JLI_StringDup(info.main_class);
1156
1157 if (info.jre_version == NULL) {
1158 JLI_FreeManifest();
1159 return;
1160 }
1161
1162 }
1163
1164 /*
1165 * Test if the current argv is an option, i.e. with a leading `-`
1166 * and followed with an argument without a leading `-`.
1167 */
1168 static jboolean
1169 IsOptionWithArgument(int argc, char** argv) {
1170 char* option;
1171 char* arg;
1172
1173 if (argc <= 1)
1174 return JNI_FALSE;
1175
1176 option = *argv;
1177 arg = *(argv+1);
1178 return *option == '-' && *arg != '-';
1179 }
1180
1181 /*
1182 * Gets the option, and its argument if the option has an argument.
1183 * It will update *pargc, **pargv to the next option.
1184 */
1185 static int
1186 GetOpt(int *pargc, char ***pargv, char **poption, char **pvalue) {
1187 int argc = *pargc;
1188 char** argv = *pargv;
1189 char* arg = *argv;
1190
1191 char* option = arg;
1192 char* value = NULL;
1193 char* equals = NULL;
1194 int kind = LAUNCHER_OPTION;
1195 jboolean has_arg = JNI_FALSE;
1196
1197 // check if this option may be a white-space option with an argument
1198 has_arg = IsOptionWithArgument(argc, argv);
1199
1200 argv++; --argc;
1201 if (IsLauncherOption(arg)) {
1202 if (has_arg) {
1203 value = *argv;
1204 argv++; --argc;
1205 }
1206 kind = IsLauncherMainOption(arg) ? LAUNCHER_MAIN_OPTION
1207 : LAUNCHER_OPTION_WITH_ARGUMENT;
1208 } else if (IsModuleOption(arg)) {
1209 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1210 if (has_arg) {
1211 value = *argv;
1212 argv++; --argc;
1213 }
1214
1215 /*
1216 * Support short form alias
1217 */
1218 if (JLI_StrCmp(arg, "-p") == 0) {
1219 option = "--module-path";
1220 }
1221
1222 } else if (JLI_StrCCmp(arg, "--") == 0 && (equals = JLI_StrChr(arg, '=')) != NULL) {
1223 value = equals+1;
1224 if (JLI_StrCCmp(arg, "--list-modules=") == 0 ||
1225 JLI_StrCCmp(arg, "--module=") == 0 ||
1226 JLI_StrCCmp(arg, "--class-path=") == 0) {
1227 kind = LAUNCHER_OPTION_WITH_ARGUMENT;
1228 } else {
1229 kind = VM_LONG_OPTION;
1230 }
1231 }
1232
1233 #ifndef OLD_MODULE_OPTIONS
1234 // for transition to support both old and new syntax
1235 if (JLI_StrCmp(arg, "-modulepath") == 0 ||
1236 JLI_StrCmp(arg, "-mp") == 0) {
1237 option = "--module-path";
1238 } else if (JLI_StrCmp(arg, "-upgrademodulepath") == 0) {
1239 option = "--upgrade-module-path";
1240 } else if (JLI_StrCmp(arg, "-addmods") == 0) {
1241 option = "--add-modules";
1242 } else if (JLI_StrCmp(arg, "-limitmods") == 0) {
1243 option = "--limit-modules";
1244 } else if (JLI_StrCCmp(arg, "-XaddExports:") == 0) {
1245 option = "--add-exports";
1246 value = arg + 13;
1247 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1248 } else if (JLI_StrCCmp(arg, "-XaddReads:") == 0) {
1249 option = "--add-reads";
1250 value = arg + 11;
1251 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1252 } else if (JLI_StrCCmp(arg, "-Xpatch:") == 0) {
1253 option = "--patch-module";
1254 value = arg + 8;
1255 kind = VM_LONG_OPTION_WITH_ARGUMENT;
1256 }
1257 #endif
1258
1259 *pargc = argc;
1260 *pargv = argv;
1261 *poption = option;
1262 *pvalue = value;
1263 return kind;
1264 }
1265
1266 /*
1267 * Parses command line arguments. Returns JNI_FALSE if launcher
1268 * should exit without starting vm, returns JNI_TRUE if vm needs
1269 * to be started to process given options. *pret (the launcher
1270 * process return value) is set to 0 for a normal exit.
1271 */
1272 static jboolean
1273 ParseArguments(int *pargc, char ***pargv,
1274 int *pmode, char **pwhat,
1275 int *pret, const char *jrepath)
1276 {
1277 int argc = *pargc;
1278 char **argv = *pargv;
1279 int mode = LM_UNKNOWN;
1280 char *arg;
1281
1282 *pret = 0;
1283
1284 while ((arg = *argv) != 0 && *arg == '-') {
1285 char *option = NULL;
1286 char *value = NULL;
1287 int kind = GetOpt(&argc, &argv, &option, &value);
1288 jboolean has_arg = value != NULL;
1289
1290 /*
1291 * Option to set main entry point
1292 */
1293 if (JLI_StrCmp(arg, "-jar") == 0) {
1294 ARG_CHECK(argc, ARG_ERROR2, arg);
1295 mode = LM_JAR;
1296 } else if (JLI_StrCmp(arg, "--module") == 0 ||
1297 JLI_StrCCmp(arg, "--module=") == 0 ||
1298 JLI_StrCmp(arg, "-m") == 0) {
1299 REPORT_ERROR (has_arg, ARG_ERROR5, arg);
1300 SetMainModule(value);
1301 mode = LM_MODULE;
1302 if (has_arg) {
1303 *pwhat = value;
1304 break;
1305 }
1306 } else if (JLI_StrCmp(arg, "--class-path") == 0 ||
1307 JLI_StrCCmp(arg, "--class-path=") == 0 ||
1308 JLI_StrCmp(arg, "-classpath") == 0 ||
1309 JLI_StrCmp(arg, "-cp") == 0) {
1310 REPORT_ERROR (has_arg, ARG_ERROR1, arg);
1311 SetClassPath(value);
1312 mode = LM_CLASS;
1313 } else if (JLI_StrCmp(arg, "--list-modules") == 0 ||
1314 JLI_StrCCmp(arg, "--list-modules=") == 0) {
1315 listModules = arg;
1316
1317 // set listModules to --list-modules=<module-names> if argument is specified
1318 if (JLI_StrCmp(arg, "--list-modules") == 0 && has_arg) {
1319 static const char format[] = "%s=%s";
1320 size_t buflen = JLI_StrLen(option) + 2 + JLI_StrLen(value);
1321 listModules = JLI_MemAlloc(buflen);
1322 JLI_Snprintf(listModules, buflen, format, option, value);
1323 }
1324 return JNI_TRUE;
1325 /*
1326 * Parse white-space options
1327 */
1328 } else if (has_arg) {
1329 if (kind == VM_LONG_OPTION) {
1330 AddOption(option, NULL);
1331 } else if (kind == VM_LONG_OPTION_WITH_ARGUMENT) {
1332 AddLongFormOption(option, value);
1333 }
1334 /*
1335 * Error missing argument
1336 */
1337 } else if (!has_arg && IsWhiteSpaceOption(arg)) {
1338 if (JLI_StrCmp(arg, "--module-path") == 0 ||
1339 JLI_StrCmp(arg, "-p") == 0 ||
1340 JLI_StrCmp(arg, "--upgrade-module-path") == 0) {
1341 REPORT_ERROR (has_arg, ARG_ERROR4, arg);
1342 } else if (JLI_StrCmp(arg, "--add-modules") == 0 ||
1343 JLI_StrCmp(arg, "--limit-modules") == 0 ||
1344 JLI_StrCmp(arg, "--add-exports") == 0 ||
1345 JLI_StrCmp(arg, "--add-reads") == 0 ||
1346 JLI_StrCmp(arg, "--patch-module") == 0) {
1347 REPORT_ERROR (has_arg, ARG_ERROR6, arg);
1348 }
1349 #ifndef OLD_MODULE_OPTIONS
1350 else if (JLI_StrCmp(arg, "-modulepath") == 0 ||
1351 JLI_StrCmp(arg, "-mp") == 0 ||
1352 JLI_StrCmp(arg, "-upgrademodulepath") == 0) {
1353 REPORT_ERROR (has_arg, ARG_ERROR4, arg);
1354 } else if (JLI_StrCmp(arg, "-addmods") == 0 ||
1355 JLI_StrCmp(arg, "-limitmods") == 0) {
1356 REPORT_ERROR (has_arg, ARG_ERROR6, arg);
1357 }
1358 #endif
1359 /*
1360 * The following cases will cause the argument parsing to stop
1361 */
1362 } else if (JLI_StrCmp(arg, "--help") == 0 ||
1363 JLI_StrCmp(arg, "-help") == 0 ||
1364 JLI_StrCmp(arg, "-h") == 0 ||
1365 JLI_StrCmp(arg, "-?") == 0) {
1366 printUsage = JNI_TRUE;
1367 return JNI_TRUE;
1368 } else if (JLI_StrCmp(arg, "-version") == 0) {
1369 printVersion = JNI_TRUE;
1370 return JNI_TRUE;
1371 } else if (JLI_StrCmp(arg, "-showversion") == 0) {
1372 showVersion = JNI_TRUE;
1373 } else if (JLI_StrCmp(arg, "--dry-run") == 0) {
1374 dryRun = JNI_TRUE;
1375 } else if (JLI_StrCmp(arg, "-X") == 0) {
1376 printXUsage = JNI_TRUE;
1377 return JNI_TRUE;
1378 /*
1379 * The following case checks for -XshowSettings OR -XshowSetting:SUBOPT.
1380 * In the latter case, any SUBOPT value not recognized will default to "all"
1381 */
1382 } else if (JLI_StrCmp(arg, "-XshowSettings") == 0 ||
1383 JLI_StrCCmp(arg, "-XshowSettings:") == 0) {
1384 showSettings = arg;
1385 } else if (JLI_StrCmp(arg, "-Xdiag") == 0) {
1386 AddOption("-Dsun.java.launcher.diag=true", NULL);
1387 AddOption("-Djdk.launcher.traceResolver=true", NULL);
1388 } else if (JLI_StrCmp(arg, "-Xdiag:resolver") == 0) {
1389 AddOption("-Djdk.launcher.traceResolver=true", NULL);
1390 /*
1391 * The following case provide backward compatibility with old-style
1392 * command line options.
1393 */
1394 } else if (JLI_StrCmp(arg, "-fullversion") == 0) {
1395 JLI_ReportMessage("%s full version \"%s\"", _launcher_name, GetFullVersion());
1396 return JNI_FALSE;
1397 } else if (JLI_StrCmp(arg, "-verbosegc") == 0) {
1398 AddOption("-verbose:gc", NULL);
1399 } else if (JLI_StrCmp(arg, "-t") == 0) {
1400 AddOption("-Xt", NULL);
1401 } else if (JLI_StrCmp(arg, "-tm") == 0) {
1402 AddOption("-Xtm", NULL);
1403 } else if (JLI_StrCmp(arg, "-debug") == 0) {
1404 AddOption("-Xdebug", NULL);
1405 } else if (JLI_StrCmp(arg, "-noclassgc") == 0) {
1406 AddOption("-Xnoclassgc", NULL);
1407 } else if (JLI_StrCmp(arg, "-Xfuture") == 0) {
1408 AddOption("-Xverify:all", NULL);
1409 } else if (JLI_StrCmp(arg, "-verify") == 0) {
1410 AddOption("-Xverify:all", NULL);
1411 } else if (JLI_StrCmp(arg, "-verifyremote") == 0) {
1412 AddOption("-Xverify:remote", NULL);
1413 } else if (JLI_StrCmp(arg, "-noverify") == 0) {
1414 AddOption("-Xverify:none", NULL);
1415 } else if (JLI_StrCCmp(arg, "-ss") == 0 ||
1416 JLI_StrCCmp(arg, "-oss") == 0 ||
1417 JLI_StrCCmp(arg, "-ms") == 0 ||
1418 JLI_StrCCmp(arg, "-mx") == 0) {
1419 char *tmp = JLI_MemAlloc(JLI_StrLen(arg) + 6);
1420 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */
1421 AddOption(tmp, NULL);
1422 } else if (JLI_StrCmp(arg, "-checksource") == 0 ||
1423 JLI_StrCmp(arg, "-cs") == 0 ||
1424 JLI_StrCmp(arg, "-noasyncgc") == 0) {
1425 /* No longer supported */
1426 JLI_ReportErrorMessage(ARG_WARN, arg);
1427 } else if (JLI_StrCCmp(arg, "-splash:") == 0) {
1428 ; /* Ignore machine independent options already handled */
1429 } else if (ProcessPlatformOption(arg)) {
1430 ; /* Processing of platform dependent options */
1431 } else if (RemovableOption(arg)) {
1432 ; /* Do not pass option to vm. */
1433 } else {
1434 /* java.class.path set on the command line */
1435 if (JLI_StrCCmp(arg, "-Djava.class.path=") == 0) {
1436 _have_classpath = JNI_TRUE;
1437 }
1438 AddOption(arg, NULL);
1439 }
1440 }
1441
1442 if (*pwhat == NULL && --argc >= 0) {
1443 *pwhat = *argv++;
1444 }
1445
1446 if (*pwhat == NULL) {
1447 *pret = 1;
1448 } else if (mode == LM_UNKNOWN) {
1449 /* default to LM_CLASS if -m, -jar and -cp options are
1450 * not specified */
1451 if (!_have_classpath) {
1452 SetClassPath(".");
1453 }
1454 mode = LM_CLASS;
1455 }
1456
1457 if (argc >= 0) {
1458 *pargc = argc;
1459 *pargv = argv;
1460 }
1461
1462 *pmode = mode;
1463
1464 return JNI_TRUE;
1465 }
1466
1467 /*
1468 * Initializes the Java Virtual Machine. Also frees options array when
1469 * finished.
1470 */
1471 static jboolean
1472 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn)
1473 {
1474 JavaVMInitArgs args;
1475 jint r;
1476
1477 memset(&args, 0, sizeof(args));
1478 args.version = JNI_VERSION_1_2;
1479 args.nOptions = numOptions;
1480 args.options = options;
1481 args.ignoreUnrecognized = JNI_FALSE;
1482
1483 if (JLI_IsTraceLauncher()) {
1484 int i = 0;
1485 printf("JavaVM args:\n ");
1486 printf("version 0x%08lx, ", (long)args.version);
1487 printf("ignoreUnrecognized is %s, ",
1488 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE");
1489 printf("nOptions is %ld\n", (long)args.nOptions);
1490 for (i = 0; i < numOptions; i++)
1491 printf(" option[%2d] = '%s'\n",
1492 i, args.options[i].optionString);
1493 }
1494
1495 r = ifn->CreateJavaVM(pvm, (void **)penv, &args);
1496 JLI_MemFree(options);
1497 return r == JNI_OK;
1498 }
1499
1500 static jclass helperClass = NULL;
1501
1502 jclass
1503 GetLauncherHelperClass(JNIEnv *env)
1504 {
1505 if (helperClass == NULL) {
1506 NULL_CHECK0(helperClass = FindBootStrapClass(env,
1507 "sun/launcher/LauncherHelper"));
1508 }
1509 return helperClass;
1510 }
1511
1512 static jmethodID makePlatformStringMID = NULL;
1513 /*
1514 * Returns a new Java string object for the specified platform string.
1515 */
1516 static jstring
1517 NewPlatformString(JNIEnv *env, char *s)
1518 {
1519 int len = (int)JLI_StrLen(s);
1520 jbyteArray ary;
1521 jclass cls = GetLauncherHelperClass(env);
1522 NULL_CHECK0(cls);
1523 if (s == NULL)
1524 return 0;
1525
1526 ary = (*env)->NewByteArray(env, len);
1527 if (ary != 0) {
1528 jstring str = 0;
1529 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s);
1530 if (!(*env)->ExceptionOccurred(env)) {
1531 if (makePlatformStringMID == NULL) {
1532 NULL_CHECK0(makePlatformStringMID = (*env)->GetStaticMethodID(env,
1533 cls, "makePlatformString", "(Z[B)Ljava/lang/String;"));
1534 }
1535 str = (*env)->CallStaticObjectMethod(env, cls,
1536 makePlatformStringMID, USE_STDERR, ary);
1537 (*env)->DeleteLocalRef(env, ary);
1538 CHECK_EXCEPTION_PRINT();
1539 return str;
1540 }
1541 }
1542 return 0;
1543 }
1544
1545 /*
1546 * Returns a new array of Java string objects for the specified
1547 * array of platform strings.
1548 */
1549 jobjectArray
1550 NewPlatformStringArray(JNIEnv *env, char **strv, int strc)
1551 {
1552 jarray cls;
1553 jarray ary;
1554 int i;
1555
1556 NULL_CHECK0(cls = FindBootStrapClass(env, "java/lang/String"));
1557 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0));
1558 for (i = 0; i < strc; i++) {
1559 jstring str = NewPlatformString(env, *strv++);
1560 NULL_CHECK0(str);
1561 (*env)->SetObjectArrayElement(env, ary, i, str);
1562 (*env)->DeleteLocalRef(env, str);
1563 }
1564 return ary;
1565 }
1566
1567 /*
1568 * Loads a class and verifies that the main class is present and it is ok to
1569 * call it for more details refer to the java implementation.
1570 */
1571 static jclass
1572 LoadMainClass(JNIEnv *env, int mode, char *name)
1573 {
1574 jmethodID mid;
1575 jstring str;
1576 jobject result;
1577 jlong start, end;
1578 jclass cls = GetLauncherHelperClass(env);
1579 NULL_CHECK0(cls);
1580 if (JLI_IsTraceLauncher()) {
1581 start = CounterGet();
1582 }
1583 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1584 "checkAndLoadMain",
1585 "(ZILjava/lang/String;)Ljava/lang/Class;"));
1586
1587 NULL_CHECK0(str = NewPlatformString(env, name));
1588 NULL_CHECK0(result = (*env)->CallStaticObjectMethod(env, cls, mid,
1589 USE_STDERR, mode, str));
1590 CHECK_EXCEPTION_PRINT();
1591
1592 if (JLI_IsTraceLauncher()) {
1593 end = CounterGet();
1594 printf("%ld micro seconds to load main class\n",
1595 (long)(jint)Counter2Micros(end-start));
1596 printf("----%s----\n", JLDEBUG_ENV_ENTRY);
1597 }
1598
1599 return (jclass)result;
1600 }
1601
1602 static jclass
1603 GetApplicationClass(JNIEnv *env)
1604 {
1605 jmethodID mid;
1606 jclass cls = GetLauncherHelperClass(env);
1607 NULL_CHECK0(cls);
1608 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1609 "getApplicationClass",
1610 "()Ljava/lang/Class;"));
1611
1612 cls = (*env)->CallStaticObjectMethod(env, cls, mid);
1613 CHECK_EXCEPTION_PRINT();
1614 return cls;
1615 }
1616
1617 /*
1618 * For tools, convert command line args thus:
1619 * javac -cp foo:foo/"*" -J-ms32m ...
1620 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ...
1621 *
1622 * Takes 4 parameters, and returns the populated arguments
1623 */
1624 static void
1625 TranslateApplicationArgs(int jargc, const char **jargv, int *pargc, char ***pargv)
1626 {
1627 int argc = *pargc;
1628 char **argv = *pargv;
1629 int nargc = argc + jargc;
1630 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *));
1631 int i;
1632
1633 *pargc = nargc;
1634 *pargv = nargv;
1635
1636 /* Copy the VM arguments (i.e. prefixed with -J) */
1637 for (i = 0; i < jargc; i++) {
1638 const char *arg = jargv[i];
1639 if (arg[0] == '-' && arg[1] == 'J') {
1640 *nargv++ = ((arg + 2) == NULL) ? NULL : JLI_StringDup(arg + 2);
1641 }
1642 }
1643
1644 for (i = 0; i < argc; i++) {
1645 char *arg = argv[i];
1646 if (arg[0] == '-' && arg[1] == 'J') {
1647 if (arg[2] == '\0') {
1648 JLI_ReportErrorMessage(ARG_ERROR3);
1649 exit(1);
1650 }
1651 *nargv++ = arg + 2;
1652 }
1653 }
1654
1655 /* Copy the rest of the arguments */
1656 for (i = 0; i < jargc ; i++) {
1657 const char *arg = jargv[i];
1658 if (arg[0] != '-' || arg[1] != 'J') {
1659 *nargv++ = (arg == NULL) ? NULL : JLI_StringDup(arg);
1660 }
1661 }
1662 for (i = 0; i < argc; i++) {
1663 char *arg = argv[i];
1664 if (arg[0] == '-') {
1665 if (arg[1] == 'J')
1666 continue;
1667 if (IsWildCardEnabled() && arg[1] == 'c'
1668 && (JLI_StrCmp(arg, "-cp") == 0 ||
1669 JLI_StrCmp(arg, "-classpath") == 0)
1670 && i < argc - 1) {
1671 *nargv++ = arg;
1672 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]);
1673 i++;
1674 continue;
1675 }
1676 }
1677 *nargv++ = arg;
1678 }
1679 *nargv = 0;
1680 }
1681
1682 /*
1683 * For our tools, we try to add 3 VM options:
1684 * -Denv.class.path=<envcp>
1685 * -Dapplication.home=<apphome>
1686 * -Djava.class.path=<appcp>
1687 * <envcp> is the user's setting of CLASSPATH -- for instance the user
1688 * tells javac where to find binary classes through this environment
1689 * variable. Notice that users will be able to compile against our
1690 * tools classes (sun.tools.javac.Main) only if they explicitly add
1691 * tools.jar to CLASSPATH.
1692 * <apphome> is the directory where the application is installed.
1693 * <appcp> is the classpath to where our apps' classfiles are.
1694 */
1695 static jboolean
1696 AddApplicationOptions(int cpathc, const char **cpathv)
1697 {
1698 char *envcp, *appcp, *apphome;
1699 char home[MAXPATHLEN]; /* application home */
1700 char separator[] = { PATH_SEPARATOR, '\0' };
1701 int size, i;
1702
1703 {
1704 const char *s = getenv("CLASSPATH");
1705 if (s) {
1706 s = (char *) JLI_WildcardExpandClasspath(s);
1707 /* 40 for -Denv.class.path= */
1708 if (JLI_StrLen(s) + 40 > JLI_StrLen(s)) { // Safeguard from overflow
1709 envcp = (char *)JLI_MemAlloc(JLI_StrLen(s) + 40);
1710 sprintf(envcp, "-Denv.class.path=%s", s);
1711 AddOption(envcp, NULL);
1712 }
1713 }
1714 }
1715
1716 if (!GetApplicationHome(home, sizeof(home))) {
1717 JLI_ReportErrorMessage(CFG_ERROR5);
1718 return JNI_FALSE;
1719 }
1720
1721 /* 40 for '-Dapplication.home=' */
1722 apphome = (char *)JLI_MemAlloc(JLI_StrLen(home) + 40);
1723 sprintf(apphome, "-Dapplication.home=%s", home);
1724 AddOption(apphome, NULL);
1725
1726 /* How big is the application's classpath? */
1727 size = 40; /* 40: "-Djava.class.path=" */
1728 for (i = 0; i < cpathc; i++) {
1729 size += (int)JLI_StrLen(home) + (int)JLI_StrLen(cpathv[i]) + 1; /* 1: separator */
1730 }
1731 appcp = (char *)JLI_MemAlloc(size + 1);
1732 JLI_StrCpy(appcp, "-Djava.class.path=");
1733 for (i = 0; i < cpathc; i++) {
1734 JLI_StrCat(appcp, home); /* c:\program files\myapp */
1735 JLI_StrCat(appcp, cpathv[i]); /* \lib\myapp.jar */
1736 JLI_StrCat(appcp, separator); /* ; */
1737 }
1738 appcp[JLI_StrLen(appcp)-1] = '\0'; /* remove trailing path separator */
1739 AddOption(appcp, NULL);
1740 return JNI_TRUE;
1741 }
1742
1743 /*
1744 * inject the -Dsun.java.command pseudo property into the args structure
1745 * this pseudo property is used in the HotSpot VM to expose the
1746 * Java class name and arguments to the main method to the VM. The
1747 * HotSpot VM uses this pseudo property to store the Java class name
1748 * (or jar file name) and the arguments to the class's main method
1749 * to the instrumentation memory region. The sun.java.command pseudo
1750 * property is not exported by HotSpot to the Java layer.
1751 */
1752 void
1753 SetJavaCommandLineProp(char *what, int argc, char **argv)
1754 {
1755
1756 int i = 0;
1757 size_t len = 0;
1758 char* javaCommand = NULL;
1759 char* dashDstr = "-Dsun.java.command=";
1760
1761 if (what == NULL) {
1762 /* unexpected, one of these should be set. just return without
1763 * setting the property
1764 */
1765 return;
1766 }
1767
1768 /* determine the amount of memory to allocate assuming
1769 * the individual components will be space separated
1770 */
1771 len = JLI_StrLen(what);
1772 for (i = 0; i < argc; i++) {
1773 len += JLI_StrLen(argv[i]) + 1;
1774 }
1775
1776 /* allocate the memory */
1777 javaCommand = (char*) JLI_MemAlloc(len + JLI_StrLen(dashDstr) + 1);
1778
1779 /* build the -D string */
1780 *javaCommand = '\0';
1781 JLI_StrCat(javaCommand, dashDstr);
1782 JLI_StrCat(javaCommand, what);
1783
1784 for (i = 0; i < argc; i++) {
1785 /* the components of the string are space separated. In
1786 * the case of embedded white space, the relationship of
1787 * the white space separated components to their true
1788 * positional arguments will be ambiguous. This issue may
1789 * be addressed in a future release.
1790 */
1791 JLI_StrCat(javaCommand, " ");
1792 JLI_StrCat(javaCommand, argv[i]);
1793 }
1794
1795 AddOption(javaCommand, NULL);
1796 }
1797
1798 /*
1799 * JVM would like to know if it's created by a standard Sun launcher, or by
1800 * user native application, the following property indicates the former.
1801 */
1802 void
1803 SetJavaLauncherProp() {
1804 AddOption("-Dsun.java.launcher=SUN_STANDARD", NULL);
1805 }
1806
1807 /*
1808 * Prints the version information from the java.version and other properties.
1809 */
1810 static void
1811 PrintJavaVersion(JNIEnv *env, jboolean extraLF)
1812 {
1813 jclass ver;
1814 jmethodID print;
1815
1816 NULL_CHECK(ver = FindBootStrapClass(env, "java/lang/VersionProps"));
1817 NULL_CHECK(print = (*env)->GetStaticMethodID(env,
1818 ver,
1819 (extraLF == JNI_TRUE) ? "println" : "print",
1820 "()V"
1821 )
1822 );
1823
1824 (*env)->CallStaticVoidMethod(env, ver, print);
1825 CHECK_EXCEPTION_PRINT();
1826 }
1827
1828 /*
1829 * Prints all the Java settings, see the java implementation for more details.
1830 */
1831 static void
1832 ShowSettings(JNIEnv *env, char *optString)
1833 {
1834 jmethodID showSettingsID;
1835 jstring joptString;
1836 jclass cls = GetLauncherHelperClass(env);
1837 NULL_CHECK(cls);
1838 NULL_CHECK(showSettingsID = (*env)->GetStaticMethodID(env, cls,
1839 "showSettings", "(ZLjava/lang/String;JJJZ)V"));
1840 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1841 (*env)->CallStaticVoidMethod(env, cls, showSettingsID,
1842 USE_STDERR,
1843 joptString,
1844 (jlong)initialHeapSize,
1845 (jlong)maxHeapSize,
1846 (jlong)threadStackSize,
1847 ServerClassMachine());
1848 CHECK_EXCEPTION_PRINT();
1849 }
1850
1851 /**
1852 * List modules supported by the runtime
1853 */
1854 static void
1855 ListModules(JNIEnv *env, char *optString)
1856 {
1857 jmethodID listModulesID;
1858 jstring joptString = NULL;
1859 jclass cls = GetLauncherHelperClass(env);
1860 NULL_CHECK(cls);
1861 NULL_CHECK(listModulesID = (*env)->GetStaticMethodID(env, cls,
1862 "listModules", "(ZLjava/lang/String;)V"));
1863 NULL_CHECK(joptString = (*env)->NewStringUTF(env, optString));
1864 (*env)->CallStaticVoidMethod(env, cls, listModulesID,
1865 USE_STDERR,
1866 joptString);
1867 CHECK_EXCEPTION_PRINT();
1868 }
1869
1870 /*
1871 * Prints default usage or the Xusage message, see sun.launcher.LauncherHelper.java
1872 */
1873 static void
1874 PrintUsage(JNIEnv* env, jboolean doXUsage)
1875 {
1876 jmethodID initHelp, vmSelect, vmSynonym, vmErgo, printHelp, printXUsageMessage;
1877 jstring jprogname, vm1, vm2;
1878 int i;
1879 jclass cls = GetLauncherHelperClass(env);
1880 NULL_CHECK(cls);
1881 if (doXUsage) {
1882 NULL_CHECK(printXUsageMessage = (*env)->GetStaticMethodID(env, cls,
1883 "printXUsageMessage", "(Z)V"));
1884 (*env)->CallStaticVoidMethod(env, cls, printXUsageMessage, USE_STDERR);
1885 CHECK_EXCEPTION_PRINT();
1886 } else {
1887 NULL_CHECK(initHelp = (*env)->GetStaticMethodID(env, cls,
1888 "initHelpMessage", "(Ljava/lang/String;)V"));
1889
1890 NULL_CHECK(vmSelect = (*env)->GetStaticMethodID(env, cls, "appendVmSelectMessage",
1891 "(Ljava/lang/String;Ljava/lang/String;)V"));
1892
1893 NULL_CHECK(vmSynonym = (*env)->GetStaticMethodID(env, cls,
1894 "appendVmSynonymMessage",
1895 "(Ljava/lang/String;Ljava/lang/String;)V"));
1896 NULL_CHECK(vmErgo = (*env)->GetStaticMethodID(env, cls,
1897 "appendVmErgoMessage", "(ZLjava/lang/String;)V"));
1898
1899 NULL_CHECK(printHelp = (*env)->GetStaticMethodID(env, cls,
1900 "printHelpMessage", "(Z)V"));
1901
1902 NULL_CHECK(jprogname = (*env)->NewStringUTF(env, _program_name));
1903
1904 /* Initialize the usage message with the usual preamble */
1905 (*env)->CallStaticVoidMethod(env, cls, initHelp, jprogname);
1906 CHECK_EXCEPTION_RETURN();
1907
1908
1909 /* Assemble the other variant part of the usage */
1910 if ((knownVMs[0].flag == VM_KNOWN) ||
1911 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) {
1912 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[0].name));
1913 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[0].name+1));
1914 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
1915 CHECK_EXCEPTION_RETURN();
1916 }
1917 for (i=1; i<knownVMsCount; i++) {
1918 if (knownVMs[i].flag == VM_KNOWN) {
1919 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1920 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].name+1));
1921 (*env)->CallStaticVoidMethod(env, cls, vmSelect, vm1, vm2);
1922 CHECK_EXCEPTION_RETURN();
1923 }
1924 }
1925 for (i=1; i<knownVMsCount; i++) {
1926 if (knownVMs[i].flag == VM_ALIASED_TO) {
1927 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, knownVMs[i].name));
1928 NULL_CHECK(vm2 = (*env)->NewStringUTF(env, knownVMs[i].alias+1));
1929 (*env)->CallStaticVoidMethod(env, cls, vmSynonym, vm1, vm2);
1930 CHECK_EXCEPTION_RETURN();
1931 }
1932 }
1933
1934 /* The first known VM is the default */
1935 {
1936 jboolean isServerClassMachine = ServerClassMachine();
1937
1938 const char* defaultVM = knownVMs[0].name+1;
1939 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && isServerClassMachine) {
1940 defaultVM = knownVMs[0].server_class+1;
1941 }
1942
1943 NULL_CHECK(vm1 = (*env)->NewStringUTF(env, defaultVM));
1944 (*env)->CallStaticVoidMethod(env, cls, vmErgo, isServerClassMachine, vm1);
1945 CHECK_EXCEPTION_RETURN();
1946 }
1947
1948 /* Complete the usage message and print to stderr*/
1949 (*env)->CallStaticVoidMethod(env, cls, printHelp, USE_STDERR);
1950 CHECK_EXCEPTION_RETURN();
1951 }
1952 return;
1953 }
1954
1955 /*
1956 * Read the jvm.cfg file and fill the knownJVMs[] array.
1957 *
1958 * The functionality of the jvm.cfg file is subject to change without
1959 * notice and the mechanism will be removed in the future.
1960 *
1961 * The lexical structure of the jvm.cfg file is as follows:
1962 *
1963 * jvmcfg := { vmLine }
1964 * vmLine := knownLine
1965 * | aliasLine
1966 * | warnLine
1967 * | ignoreLine
1968 * | errorLine
1969 * | predicateLine
1970 * | commentLine
1971 * knownLine := flag "KNOWN" EOL
1972 * warnLine := flag "WARN" EOL
1973 * ignoreLine := flag "IGNORE" EOL
1974 * errorLine := flag "ERROR" EOL
1975 * aliasLine := flag "ALIASED_TO" flag EOL
1976 * predicateLine := flag "IF_SERVER_CLASS" flag EOL
1977 * commentLine := "#" text EOL
1978 * flag := "-" identifier
1979 *
1980 * The semantics are that when someone specifies a flag on the command line:
1981 * - if the flag appears on a knownLine, then the identifier is used as
1982 * the name of the directory holding the JVM library (the name of the JVM).
1983 * - if the flag appears as the first flag on an aliasLine, the identifier
1984 * of the second flag is used as the name of the JVM.
1985 * - if the flag appears on a warnLine, the identifier is used as the
1986 * name of the JVM, but a warning is generated.
1987 * - if the flag appears on an ignoreLine, the identifier is recognized as the
1988 * name of a JVM, but the identifier is ignored and the default vm used
1989 * - if the flag appears on an errorLine, an error is generated.
1990 * - if the flag appears as the first flag on a predicateLine, and
1991 * the machine on which you are running passes the predicate indicated,
1992 * then the identifier of the second flag is used as the name of the JVM,
1993 * otherwise the identifier of the first flag is used as the name of the JVM.
1994 * If no flag is given on the command line, the first vmLine of the jvm.cfg
1995 * file determines the name of the JVM.
1996 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file,
1997 * since they only make sense if someone hasn't specified the name of the
1998 * JVM on the command line.
1999 *
2000 * The intent of the jvm.cfg file is to allow several JVM libraries to
2001 * be installed in different subdirectories of a single JRE installation,
2002 * for space-savings and convenience in testing.
2003 * The intent is explicitly not to provide a full aliasing or predicate
2004 * mechanism.
2005 */
2006 jint
2007 ReadKnownVMs(const char *jvmCfgName, jboolean speculative)
2008 {
2009 FILE *jvmCfg;
2010 char line[MAXPATHLEN+20];
2011 int cnt = 0;
2012 int lineno = 0;
2013 jlong start, end;
2014 int vmType;
2015 char *tmpPtr;
2016 char *altVMName = NULL;
2017 char *serverClassVMName = NULL;
2018 static char *whiteSpace = " \t";
2019 if (JLI_IsTraceLauncher()) {
2020 start = CounterGet();
2021 }
2022
2023 jvmCfg = fopen(jvmCfgName, "r");
2024 if (jvmCfg == NULL) {
2025 if (!speculative) {
2026 JLI_ReportErrorMessage(CFG_ERROR6, jvmCfgName);
2027 exit(1);
2028 } else {
2029 return -1;
2030 }
2031 }
2032 while (fgets(line, sizeof(line), jvmCfg) != NULL) {
2033 vmType = VM_UNKNOWN;
2034 lineno++;
2035 if (line[0] == '#')
2036 continue;
2037 if (line[0] != '-') {
2038 JLI_ReportErrorMessage(CFG_WARN2, lineno, jvmCfgName);
2039 }
2040 if (cnt >= knownVMsLimit) {
2041 GrowKnownVMs(cnt);
2042 }
2043 line[JLI_StrLen(line)-1] = '\0'; /* remove trailing newline */
2044 tmpPtr = line + JLI_StrCSpn(line, whiteSpace);
2045 if (*tmpPtr == 0) {
2046 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2047 } else {
2048 /* Null-terminate this string for JLI_StringDup below */
2049 *tmpPtr++ = 0;
2050 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2051 if (*tmpPtr == 0) {
2052 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2053 } else {
2054 if (!JLI_StrCCmp(tmpPtr, "KNOWN")) {
2055 vmType = VM_KNOWN;
2056 } else if (!JLI_StrCCmp(tmpPtr, "ALIASED_TO")) {
2057 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2058 if (*tmpPtr != 0) {
2059 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2060 }
2061 if (*tmpPtr == 0) {
2062 JLI_ReportErrorMessage(CFG_WARN3, lineno, jvmCfgName);
2063 } else {
2064 /* Null terminate altVMName */
2065 altVMName = tmpPtr;
2066 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2067 *tmpPtr = 0;
2068 vmType = VM_ALIASED_TO;
2069 }
2070 } else if (!JLI_StrCCmp(tmpPtr, "WARN")) {
2071 vmType = VM_WARN;
2072 } else if (!JLI_StrCCmp(tmpPtr, "IGNORE")) {
2073 vmType = VM_IGNORE;
2074 } else if (!JLI_StrCCmp(tmpPtr, "ERROR")) {
2075 vmType = VM_ERROR;
2076 } else if (!JLI_StrCCmp(tmpPtr, "IF_SERVER_CLASS")) {
2077 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2078 if (*tmpPtr != 0) {
2079 tmpPtr += JLI_StrSpn(tmpPtr, whiteSpace);
2080 }
2081 if (*tmpPtr == 0) {
2082 JLI_ReportErrorMessage(CFG_WARN4, lineno, jvmCfgName);
2083 } else {
2084 /* Null terminate server class VM name */
2085 serverClassVMName = tmpPtr;
2086 tmpPtr += JLI_StrCSpn(tmpPtr, whiteSpace);
2087 *tmpPtr = 0;
2088 vmType = VM_IF_SERVER_CLASS;
2089 }
2090 } else {
2091 JLI_ReportErrorMessage(CFG_WARN5, lineno, &jvmCfgName[0]);
2092 vmType = VM_KNOWN;
2093 }
2094 }
2095 }
2096
2097 JLI_TraceLauncher("jvm.cfg[%d] = ->%s<-\n", cnt, line);
2098 if (vmType != VM_UNKNOWN) {
2099 knownVMs[cnt].name = JLI_StringDup(line);
2100 knownVMs[cnt].flag = vmType;
2101 switch (vmType) {
2102 default:
2103 break;
2104 case VM_ALIASED_TO:
2105 knownVMs[cnt].alias = JLI_StringDup(altVMName);
2106 JLI_TraceLauncher(" name: %s vmType: %s alias: %s\n",
2107 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias);
2108 break;
2109 case VM_IF_SERVER_CLASS:
2110 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName);
2111 JLI_TraceLauncher(" name: %s vmType: %s server_class: %s\n",
2112 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class);
2113 break;
2114 }
2115 cnt++;
2116 }
2117 }
2118 fclose(jvmCfg);
2119 knownVMsCount = cnt;
2120
2121 if (JLI_IsTraceLauncher()) {
2122 end = CounterGet();
2123 printf("%ld micro seconds to parse jvm.cfg\n",
2124 (long)(jint)Counter2Micros(end-start));
2125 }
2126
2127 return cnt;
2128 }
2129
2130
2131 static void
2132 GrowKnownVMs(int minimum)
2133 {
2134 struct vmdesc* newKnownVMs;
2135 int newMax;
2136
2137 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit));
2138 if (newMax <= minimum) {
2139 newMax = minimum;
2140 }
2141 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc));
2142 if (knownVMs != NULL) {
2143 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc));
2144 }
2145 JLI_MemFree(knownVMs);
2146 knownVMs = newKnownVMs;
2147 knownVMsLimit = newMax;
2148 }
2149
2150
2151 /* Returns index of VM or -1 if not found */
2152 static int
2153 KnownVMIndex(const char* name)
2154 {
2155 int i;
2156 if (JLI_StrCCmp(name, "-J") == 0) name += 2;
2157 for (i = 0; i < knownVMsCount; i++) {
2158 if (!JLI_StrCmp(name, knownVMs[i].name)) {
2159 return i;
2160 }
2161 }
2162 return -1;
2163 }
2164
2165 static void
2166 FreeKnownVMs()
2167 {
2168 int i;
2169 for (i = 0; i < knownVMsCount; i++) {
2170 JLI_MemFree(knownVMs[i].name);
2171 knownVMs[i].name = NULL;
2172 }
2173 JLI_MemFree(knownVMs);
2174 }
2175
2176 /*
2177 * Displays the splash screen according to the jar file name
2178 * and image file names stored in environment variables
2179 */
2180 void
2181 ShowSplashScreen()
2182 {
2183 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY);
2184 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY);
2185 int data_size;
2186 void *image_data = NULL;
2187 float scale_factor = 1;
2188 char *scaled_splash_name = NULL;
2189 jboolean isImageScaled = JNI_FALSE;
2190 size_t maxScaledImgNameLength = 0;
2191 if (file_name == NULL){
2192 return;
2193 }
2194 maxScaledImgNameLength = DoSplashGetScaledImgNameMaxPstfixLen(file_name);
2195
2196 scaled_splash_name = JLI_MemAlloc(
2197 maxScaledImgNameLength * sizeof(char));
2198 isImageScaled = DoSplashGetScaledImageName(jar_name, file_name,
2199 &scale_factor,
2200 scaled_splash_name, maxScaledImgNameLength);
2201 if (jar_name) {
2202
2203 if (isImageScaled) {
2204 image_data = JLI_JarUnpackFile(
2205 jar_name, scaled_splash_name, &data_size);
2206 }
2207
2208 if (!image_data) {
2209 scale_factor = 1;
2210 image_data = JLI_JarUnpackFile(
2211 jar_name, file_name, &data_size);
2212 }
2213 if (image_data) {
2214 DoSplashInit();
2215 DoSplashSetScaleFactor(scale_factor);
2216 DoSplashLoadMemory(image_data, data_size);
2217 JLI_MemFree(image_data);
2218 }
2219 } else {
2220 DoSplashInit();
2221 if (isImageScaled) {
2222 DoSplashSetScaleFactor(scale_factor);
2223 DoSplashLoadFile(scaled_splash_name);
2224 } else {
2225 DoSplashLoadFile(file_name);
2226 }
2227 }
2228 JLI_MemFree(scaled_splash_name);
2229
2230 DoSplashSetFileJarName(file_name, jar_name);
2231
2232 /*
2233 * Done with all command line processing and potential re-execs so
2234 * clean up the environment.
2235 */
2236 (void)UnsetEnv(ENV_ENTRY);
2237 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY);
2238 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY);
2239
2240 JLI_MemFree(splash_jar_entry);
2241 JLI_MemFree(splash_file_entry);
2242
2243 }
2244
2245 const char*
2246 GetFullVersion()
2247 {
2248 return _fVersion;
2249 }
2250
2251 const char*
2252 GetProgramName()
2253 {
2254 return _program_name;
2255 }
2256
2257 const char*
2258 GetLauncherName()
2259 {
2260 return _launcher_name;
2261 }
2262
2263 jint
2264 GetErgoPolicy()
2265 {
2266 return _ergo_policy;
2267 }
2268
2269 jboolean
2270 IsJavaArgs()
2271 {
2272 return _is_java_args;
2273 }
2274
2275 static jboolean
2276 IsWildCardEnabled()
2277 {
2278 return _wc_enabled;
2279 }
2280
2281 int
2282 ContinueInNewThread(InvocationFunctions* ifn, jlong threadStackSize,
2283 int argc, char **argv,
2284 int mode, char *what, int ret)
2285 {
2286
2287 /*
2288 * If user doesn't specify stack size, check if VM has a preference.
2289 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will
2290 * return its default stack size through the init args structure.
2291 */
2292 if (threadStackSize == 0) {
2293 struct JDK1_1InitArgs args1_1;
2294 memset((void*)&args1_1, 0, sizeof(args1_1));
2295 args1_1.version = JNI_VERSION_1_1;
2296 ifn->GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */
2297 if (args1_1.javaStackSize > 0) {
2298 threadStackSize = args1_1.javaStackSize;
2299 }
2300 }
2301
2302 { /* Create a new thread to create JVM and invoke main method */
2303 JavaMainArgs args;
2304 int rslt;
2305
2306 args.argc = argc;
2307 args.argv = argv;
2308 args.mode = mode;
2309 args.what = what;
2310 args.ifn = *ifn;
2311
2312 rslt = ContinueInNewThread0(JavaMain, threadStackSize, (void*)&args);
2313 /* If the caller has deemed there is an error we
2314 * simply return that, otherwise we return the value of
2315 * the callee
2316 */
2317 return (ret != 0) ? ret : rslt;
2318 }
2319 }
2320
2321 static void
2322 DumpState()
2323 {
2324 if (!JLI_IsTraceLauncher()) return ;
2325 printf("Launcher state:\n");
2326 printf("\tFirst application arg index: %d\n", JLI_GetAppArgIndex());
2327 printf("\tdebug:%s\n", (JLI_IsTraceLauncher() == JNI_TRUE) ? "on" : "off");
2328 printf("\tjavargs:%s\n", (_is_java_args == JNI_TRUE) ? "on" : "off");
2329 printf("\tprogram name:%s\n", GetProgramName());
2330 printf("\tlauncher name:%s\n", GetLauncherName());
2331 printf("\tjavaw:%s\n", (IsJavaw() == JNI_TRUE) ? "on" : "off");
2332 printf("\tfullversion:%s\n", GetFullVersion());
2333 printf("\tergo_policy:");
2334 switch(GetErgoPolicy()) {
2335 case NEVER_SERVER_CLASS:
2336 printf("NEVER_ACT_AS_A_SERVER_CLASS_MACHINE\n");
2337 break;
2338 case ALWAYS_SERVER_CLASS:
2339 printf("ALWAYS_ACT_AS_A_SERVER_CLASS_MACHINE\n");
2340 break;
2341 default:
2342 printf("DEFAULT_ERGONOMICS_POLICY\n");
2343 }
2344 }
2345
2346 /*
2347 * Return JNI_TRUE for an option string that has no effect but should
2348 * _not_ be passed on to the vm; return JNI_FALSE otherwise. On
2349 * Solaris SPARC, this screening needs to be done if:
2350 * -d32 or -d64 is passed to a binary with an unmatched data model
2351 * (the exec in CreateExecutionEnvironment removes -d<n> options and points the
2352 * exec to the proper binary). In the case of when the data model and the
2353 * requested version is matched, an exec would not occur, and these options
2354 * were erroneously passed to the vm.
2355 */
2356 jboolean
2357 RemovableOption(char * option)
2358 {
2359 /*
2360 * Unconditionally remove both -d32 and -d64 options since only
2361 * the last such options has an effect; e.g.
2362 * java -d32 -d64 -d32 -version
2363 * is equivalent to
2364 * java -d32 -version
2365 */
2366
2367 if( (JLI_StrCCmp(option, "-d32") == 0 ) ||
2368 (JLI_StrCCmp(option, "-d64") == 0 ) )
2369 return JNI_TRUE;
2370 else
2371 return JNI_FALSE;
2372 }
2373
2374 /*
2375 * A utility procedure to always print to stderr
2376 */
2377 void
2378 JLI_ReportMessage(const char* fmt, ...)
2379 {
2380 va_list vl;
2381 va_start(vl, fmt);
2382 vfprintf(stderr, fmt, vl);
2383 fprintf(stderr, "\n");
2384 va_end(vl);
2385 }