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