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