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