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