Mercurial > hg > truffle
annotate src/share/tools/launcher/java.c @ 4494:e55e2fca50fa
Removed SelectionCoordinator; now CFG and Graph view working in parallel.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Thu, 02 Feb 2012 17:51:39 +0100 |
parents | aa6e219afbf1 |
children | 203f64878aab |
rev | line source |
---|---|
1985 | 1 /* |
2 * Copyright (c) 1999, 2010, 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. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
25 /* | |
26 * Gamma (Hotspot internal engineering test) launcher based on 6.0u22 JDK, | |
27 * search "GAMMA" for gamma specific changes. | |
28 * | |
29 * GAMMA: gamma launcher is much simpler than regular java launcher in that | |
30 * JVM is either statically linked in or it is installed in the | |
31 * same directory where the launcher exists, so we don't have to | |
32 * worry about choosing the right JVM based on command line flag, jar | |
33 * file and/or ergonomics. Intead of removing unused logic from source | |
34 * they are commented out with #ifndef GAMMA, hopefully it'll be easier | |
35 * to maintain this file in sync with regular JDK launcher. | |
36 */ | |
37 | |
38 /* | |
39 * Shared source for 'java' command line tool. | |
40 * | |
41 * If JAVA_ARGS is defined, then acts as a launcher for applications. For | |
42 * instance, the JDK command line tools such as javac and javadoc (see | |
43 * makefiles for more details) are built with this program. Any arguments | |
44 * prefixed with '-J' will be passed directly to the 'java' command. | |
45 */ | |
46 | |
47 #ifdef GAMMA | |
48 # ifdef JAVA_ARGS | |
49 # error Do NOT define JAVA_ARGS when building gamma launcher | |
50 # endif | |
51 # if !defined(LINK_INTO_AOUT) && !defined(LINK_INTO_LIBJVM) | |
52 # error Either LINK_INTO_AOUT or LINK_INTO_LIBJVM must be defined | |
53 # endif | |
54 #endif | |
55 | |
56 /* | |
57 * One job of the launcher is to remove command line options which the | |
58 * vm does not understand and will not process. These options include | |
59 * options which select which style of vm is run (e.g. -client and | |
60 * -server) as well as options which select the data model to use. | |
61 * Additionally, for tools which invoke an underlying vm "-J-foo" | |
62 * options are turned into "-foo" options to the vm. This option | |
63 * filtering is handled in a number of places in the launcher, some of | |
64 * it in machine-dependent code. In this file, the function | |
65 * CheckJVMType removes vm style options and TranslateApplicationArgs | |
66 * removes "-J" prefixes. On unix platforms, the | |
67 * CreateExecutionEnvironment function from the unix java_md.c file | |
68 * processes and removes -d<n> options. However, in case | |
69 * CreateExecutionEnvironment does not need to exec because | |
70 * LD_LIBRARY_PATH is set acceptably and the data model does not need | |
71 * to be changed, ParseArguments will screen out the redundant -d<n> | |
72 * options and prevent them from being passed to the vm; this is done | |
73 * by using the machine-dependent call | |
74 * RemovableMachineDependentOption. | |
75 */ | |
76 | |
77 #include <stdio.h> | |
78 #include <stdlib.h> | |
79 #include <string.h> | |
80 | |
81 #include <jni.h> | |
82 #include <jvm.h> | |
83 #include "java.h" | |
84 #ifndef GAMMA | |
85 #include "manifest_info.h" | |
86 #include "version_comp.h" | |
87 #include "splashscreen.h" | |
88 #endif | |
89 #include "wildcard.h" | |
90 | |
91 #ifndef FULL_VERSION | |
92 #define FULL_VERSION JDK_MAJOR_VERSION "." JDK_MINOR_VERSION | |
93 #endif | |
94 | |
95 /* | |
96 * The following environment variable is used to influence the behavior | |
97 * of the jre exec'd through the SelectVersion routine. The command line | |
98 * options which specify the version are not passed to the exec'd version, | |
99 * because that jre may be an older version which wouldn't recognize them. | |
100 * This environment variable is known to this (and later) version and serves | |
101 * to suppress the version selection code. This is not only for efficiency, | |
102 * but also for correctness, since any command line options have been | |
103 * removed which would cause any value found in the manifest to be used. | |
104 * This would be incorrect because the command line options are defined | |
105 * to take precedence. | |
106 * | |
107 * The value associated with this environment variable is the MainClass | |
108 * name from within the executable jar file (if any). This is strictly a | |
109 * performance enhancement to avoid re-reading the jar file manifest. | |
110 * | |
111 * A NOTE TO DEVELOPERS: For performance reasons it is important that | |
112 * the program image remain relatively small until after SelectVersion | |
113 * CreateExecutionEnvironment have finished their possibly recursive | |
114 * processing. Watch everything, but resist all temptations to use Java | |
115 * interfaces. | |
116 */ | |
117 #define ENV_ENTRY "_JAVA_VERSION_SET" | |
118 | |
119 #ifndef GAMMA | |
120 #define SPLASH_FILE_ENV_ENTRY "_JAVA_SPLASH_FILE" | |
121 #define SPLASH_JAR_ENV_ENTRY "_JAVA_SPLASH_JAR" | |
122 #endif | |
123 | |
124 static jboolean printVersion = JNI_FALSE; /* print and exit */ | |
125 static jboolean showVersion = JNI_FALSE; /* print but continue */ | |
126 static char *progname; | |
127 jboolean _launcher_debug = JNI_FALSE; | |
128 | |
129 #ifndef GAMMA | |
130 /* | |
131 * Entries for splash screen environment variables. | |
132 * putenv is performed in SelectVersion. We need | |
133 * them in memory until UnsetEnv, so they are made static | |
134 * global instead of auto local. | |
135 */ | |
136 static char* splash_file_entry = NULL; | |
137 static char* splash_jar_entry = NULL; | |
138 #endif | |
139 | |
140 /* | |
141 * List of VM options to be specified when the VM is created. | |
142 */ | |
143 static JavaVMOption *options; | |
144 static int numOptions, maxOptions; | |
145 | |
146 /* | |
147 * Prototypes for functions internal to launcher. | |
148 */ | |
149 static void SetClassPath(const char *s); | |
150 static void SelectVersion(int argc, char **argv, char **main_class); | |
151 static jboolean ParseArguments(int *pargc, char ***pargv, char **pjarfile, | |
152 char **pclassname, int *pret, const char *jvmpath); | |
153 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, | |
154 InvocationFunctions *ifn); | |
155 static jstring NewPlatformString(JNIEnv *env, char *s); | |
156 static jobjectArray NewPlatformStringArray(JNIEnv *env, char **strv, int strc); | |
157 static jclass LoadClass(JNIEnv *env, char *name); | |
158 static jstring GetMainClassName(JNIEnv *env, char *jarname); | |
159 static void SetJavaCommandLineProp(char* classname, char* jarfile, int argc, char** argv); | |
160 static void SetJavaLauncherProp(void); | |
161 | |
162 #ifdef JAVA_ARGS | |
163 static void TranslateApplicationArgs(int *pargc, char ***pargv); | |
164 static jboolean AddApplicationOptions(void); | |
165 #endif | |
166 | |
167 static void PrintJavaVersion(JNIEnv *env); | |
168 static void PrintUsage(void); | |
169 static jint PrintXUsage(const char *jvmpath); | |
170 | |
171 static void SetPaths(int argc, char **argv); | |
172 | |
173 #ifndef GAMMA | |
174 | |
175 /* Maximum supported entries from jvm.cfg. */ | |
176 #define INIT_MAX_KNOWN_VMS 10 | |
177 /* Values for vmdesc.flag */ | |
178 #define VM_UNKNOWN -1 | |
179 #define VM_KNOWN 0 | |
180 #define VM_ALIASED_TO 1 | |
181 #define VM_WARN 2 | |
182 #define VM_ERROR 3 | |
183 #define VM_IF_SERVER_CLASS 4 | |
184 #define VM_IGNORE 5 | |
185 struct vmdesc { | |
186 char *name; | |
187 int flag; | |
188 char *alias; | |
189 char *server_class; | |
190 }; | |
191 static struct vmdesc *knownVMs = NULL; | |
192 static int knownVMsCount = 0; | |
193 static int knownVMsLimit = 0; | |
194 | |
195 static void GrowKnownVMs(); | |
196 static int KnownVMIndex(const char* name); | |
197 static void FreeKnownVMs(); | |
198 static void ShowSplashScreen(); | |
199 | |
200 #endif /* ifndef GAMMA */ | |
201 | |
202 jboolean ServerClassMachine(); | |
203 | |
204 /* flag which if set suppresses error messages from the launcher */ | |
205 static int noExitErrorMessage = 0; | |
206 | |
207 /* | |
208 * Running Java code in primordial thread caused many problems. We will | |
209 * create a new thread to invoke JVM. See 6316197 for more information. | |
210 */ | |
211 static jlong threadStackSize = 0; /* stack size of the new thread */ | |
212 | |
213 int JNICALL JavaMain(void * args); /* entry point */ | |
214 | |
215 struct JavaMainArgs { | |
216 int argc; | |
217 char ** argv; | |
218 char * jarfile; | |
219 char * classname; | |
220 InvocationFunctions ifn; | |
221 }; | |
222 | |
223 /* | |
224 * Entry point. | |
225 */ | |
226 int | |
227 main(int argc, char ** argv) | |
228 { | |
229 char *jarfile = 0; | |
230 char *classname = 0; | |
231 char *s = 0; | |
232 char *main_class = NULL; | |
233 int ret; | |
234 InvocationFunctions ifn; | |
235 jlong start, end; | |
236 char jrepath[MAXPATHLEN], jvmpath[MAXPATHLEN]; | |
237 char ** original_argv = argv; | |
238 | |
239 if (getenv("_JAVA_LAUNCHER_DEBUG") != 0) { | |
240 _launcher_debug = JNI_TRUE; | |
241 printf("----_JAVA_LAUNCHER_DEBUG----\n"); | |
242 } | |
243 | |
244 #ifndef GAMMA | |
245 /* | |
246 * Make sure the specified version of the JRE is running. | |
247 * | |
248 * There are three things to note about the SelectVersion() routine: | |
249 * 1) If the version running isn't correct, this routine doesn't | |
250 * return (either the correct version has been exec'd or an error | |
251 * was issued). | |
252 * 2) Argc and Argv in this scope are *not* altered by this routine. | |
253 * It is the responsibility of subsequent code to ignore the | |
254 * arguments handled by this routine. | |
255 * 3) As a side-effect, the variable "main_class" is guaranteed to | |
256 * be set (if it should ever be set). This isn't exactly the | |
257 * poster child for structured programming, but it is a small | |
258 * price to pay for not processing a jar file operand twice. | |
259 * (Note: This side effect has been disabled. See comment on | |
260 * bugid 5030265 below.) | |
261 */ | |
262 SelectVersion(argc, argv, &main_class); | |
263 #endif /* ifndef GAMMA */ | |
264 | |
265 /* copy original argv */ | |
266 { | |
267 int i; | |
268 original_argv = (char**)JLI_MemAlloc(sizeof(char*)*(argc+1)); | |
269 for(i = 0; i < argc+1; i++) | |
270 original_argv[i] = argv[i]; | |
271 } | |
272 | |
273 CreateExecutionEnvironment(&argc, &argv, | |
274 jrepath, sizeof(jrepath), | |
275 jvmpath, sizeof(jvmpath), | |
276 original_argv); | |
277 | |
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
1985
diff
changeset
|
278 printf("Using java runtime at: %s\n", jrepath); |
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
1985
diff
changeset
|
279 |
1985 | 280 ifn.CreateJavaVM = 0; |
281 ifn.GetDefaultJavaVMInitArgs = 0; | |
282 | |
283 if (_launcher_debug) | |
284 start = CounterGet(); | |
285 if (!LoadJavaVM(jvmpath, &ifn)) { | |
286 exit(6); | |
287 } | |
288 if (_launcher_debug) { | |
289 end = CounterGet(); | |
290 printf("%ld micro seconds to LoadJavaVM\n", | |
291 (long)(jint)Counter2Micros(end-start)); | |
292 } | |
293 | |
294 #ifdef JAVA_ARGS /* javac, jar and friends. */ | |
295 progname = "java"; | |
296 #else /* java, oldjava, javaw and friends */ | |
297 #ifdef PROGNAME | |
298 progname = PROGNAME; | |
299 #else | |
300 progname = *argv; | |
301 if ((s = strrchr(progname, FILE_SEPARATOR)) != 0) { | |
302 progname = s + 1; | |
303 } | |
304 #endif /* PROGNAME */ | |
305 #endif /* JAVA_ARGS */ | |
306 ++argv; | |
307 --argc; | |
308 | |
309 #ifdef JAVA_ARGS | |
310 /* Preprocess wrapper arguments */ | |
311 TranslateApplicationArgs(&argc, &argv); | |
312 if (!AddApplicationOptions()) { | |
313 exit(1); | |
314 } | |
315 #endif | |
316 | |
317 /* Set default CLASSPATH */ | |
318 if ((s = getenv("CLASSPATH")) == 0) { | |
319 s = "."; | |
320 } | |
321 #ifndef JAVA_ARGS | |
322 SetClassPath(s); | |
323 #endif | |
324 | |
325 /* | |
326 * Parse command line options; if the return value of | |
327 * ParseArguments is false, the program should exit. | |
328 */ | |
329 if (!ParseArguments(&argc, &argv, &jarfile, &classname, &ret, jvmpath)) { | |
330 exit(ret); | |
331 } | |
332 | |
333 /* Override class path if -jar flag was specified */ | |
334 if (jarfile != 0) { | |
335 SetClassPath(jarfile); | |
336 } | |
337 | |
338 /* set the -Dsun.java.command pseudo property */ | |
339 SetJavaCommandLineProp(classname, jarfile, argc, argv); | |
340 | |
341 /* Set the -Dsun.java.launcher pseudo property */ | |
342 SetJavaLauncherProp(); | |
343 | |
344 /* set the -Dsun.java.launcher.* platform properties */ | |
345 SetJavaLauncherPlatformProps(); | |
346 | |
347 #ifndef GAMMA | |
348 /* Show the splash screen if needed */ | |
349 ShowSplashScreen(); | |
350 #endif | |
351 | |
352 /* | |
353 * Done with all command line processing and potential re-execs so | |
354 * clean up the environment. | |
355 */ | |
356 (void)UnsetEnv(ENV_ENTRY); | |
357 #ifndef GAMMA | |
358 (void)UnsetEnv(SPLASH_FILE_ENV_ENTRY); | |
359 (void)UnsetEnv(SPLASH_JAR_ENV_ENTRY); | |
360 | |
361 JLI_MemFree(splash_jar_entry); | |
362 JLI_MemFree(splash_file_entry); | |
363 #endif | |
364 | |
365 /* | |
366 * If user doesn't specify stack size, check if VM has a preference. | |
367 * Note that HotSpot no longer supports JNI_VERSION_1_1 but it will | |
368 * return its default stack size through the init args structure. | |
369 */ | |
370 if (threadStackSize == 0) { | |
371 struct JDK1_1InitArgs args1_1; | |
372 memset((void*)&args1_1, 0, sizeof(args1_1)); | |
373 args1_1.version = JNI_VERSION_1_1; | |
374 ifn.GetDefaultJavaVMInitArgs(&args1_1); /* ignore return value */ | |
375 if (args1_1.javaStackSize > 0) { | |
376 threadStackSize = args1_1.javaStackSize; | |
377 } | |
378 } | |
379 | |
380 { /* Create a new thread to create JVM and invoke main method */ | |
381 struct JavaMainArgs args; | |
382 | |
383 args.argc = argc; | |
384 args.argv = argv; | |
385 args.jarfile = jarfile; | |
386 args.classname = classname; | |
387 args.ifn = ifn; | |
388 | |
389 return ContinueInNewThread(JavaMain, threadStackSize, (void*)&args); | |
390 } | |
391 } | |
392 | |
393 int JNICALL | |
394 JavaMain(void * _args) | |
395 { | |
396 struct JavaMainArgs *args = (struct JavaMainArgs *)_args; | |
397 int argc = args->argc; | |
398 char **argv = args->argv; | |
399 char *jarfile = args->jarfile; | |
400 char *classname = args->classname; | |
401 InvocationFunctions ifn = args->ifn; | |
402 | |
403 JavaVM *vm = 0; | |
404 JNIEnv *env = 0; | |
405 jstring mainClassName; | |
406 jclass mainClass; | |
407 jmethodID mainID; | |
408 jobjectArray mainArgs; | |
409 int ret = 0; | |
410 jlong start, end; | |
411 | |
412 /* | |
413 * Error message to print or display; by default the message will | |
414 * only be displayed in a window. | |
415 */ | |
416 char * message = "Fatal exception occurred. Program will exit."; | |
417 jboolean messageDest = JNI_FALSE; | |
418 | |
419 /* Initialize the virtual machine */ | |
420 | |
421 if (_launcher_debug) | |
422 start = CounterGet(); | |
423 if (!InitializeJVM(&vm, &env, &ifn)) { | |
424 ReportErrorMessage("Could not create the Java virtual machine.", | |
425 JNI_TRUE); | |
426 exit(1); | |
427 } | |
428 | |
429 if (printVersion || showVersion) { | |
430 PrintJavaVersion(env); | |
431 if ((*env)->ExceptionOccurred(env)) { | |
432 ReportExceptionDescription(env); | |
433 goto leave; | |
434 } | |
435 if (printVersion) { | |
436 ret = 0; | |
437 message = NULL; | |
438 goto leave; | |
439 } | |
440 if (showVersion) { | |
441 fprintf(stderr, "\n"); | |
442 } | |
443 } | |
444 | |
445 /* If the user specified neither a class name nor a JAR file */ | |
446 if (jarfile == 0 && classname == 0) { | |
447 PrintUsage(); | |
448 message = NULL; | |
449 goto leave; | |
450 } | |
451 | |
452 #ifndef GAMMA | |
453 FreeKnownVMs(); /* after last possible PrintUsage() */ | |
454 #endif | |
455 | |
456 if (_launcher_debug) { | |
457 end = CounterGet(); | |
458 printf("%ld micro seconds to InitializeJVM\n", | |
459 (long)(jint)Counter2Micros(end-start)); | |
460 } | |
461 | |
462 /* At this stage, argc/argv have the applications' arguments */ | |
463 if (_launcher_debug) { | |
464 int i = 0; | |
465 printf("Main-Class is '%s'\n", classname ? classname : ""); | |
466 printf("Apps' argc is %d\n", argc); | |
467 for (; i < argc; i++) { | |
468 printf(" argv[%2d] = '%s'\n", i, argv[i]); | |
469 } | |
470 } | |
471 | |
472 ret = 1; | |
473 | |
474 /* | |
475 * Get the application's main class. | |
476 * | |
477 * See bugid 5030265. The Main-Class name has already been parsed | |
478 * from the manifest, but not parsed properly for UTF-8 support. | |
479 * Hence the code here ignores the value previously extracted and | |
480 * uses the pre-existing code to reextract the value. This is | |
481 * possibly an end of release cycle expedient. However, it has | |
482 * also been discovered that passing some character sets through | |
483 * the environment has "strange" behavior on some variants of | |
484 * Windows. Hence, maybe the manifest parsing code local to the | |
485 * launcher should never be enhanced. | |
486 * | |
487 * Hence, future work should either: | |
488 * 1) Correct the local parsing code and verify that the | |
489 * Main-Class attribute gets properly passed through | |
490 * all environments, | |
491 * 2) Remove the vestages of maintaining main_class through | |
492 * the environment (and remove these comments). | |
493 */ | |
494 if (jarfile != 0) { | |
495 mainClassName = GetMainClassName(env, jarfile); | |
496 if ((*env)->ExceptionOccurred(env)) { | |
497 ReportExceptionDescription(env); | |
498 goto leave; | |
499 } | |
500 if (mainClassName == NULL) { | |
501 const char * format = "Failed to load Main-Class manifest " | |
502 "attribute from\n%s"; | |
503 message = (char*)JLI_MemAlloc((strlen(format) + strlen(jarfile)) * | |
504 sizeof(char)); | |
505 sprintf(message, format, jarfile); | |
506 messageDest = JNI_TRUE; | |
507 goto leave; | |
508 } | |
509 classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0); | |
510 if (classname == NULL) { | |
511 ReportExceptionDescription(env); | |
512 goto leave; | |
513 } | |
514 mainClass = LoadClass(env, classname); | |
515 if(mainClass == NULL) { /* exception occured */ | |
516 const char * format = "Could not find the main class: %s. Program will exit."; | |
517 ReportExceptionDescription(env); | |
518 message = (char *)JLI_MemAlloc((strlen(format) + | |
519 strlen(classname)) * sizeof(char) ); | |
520 messageDest = JNI_TRUE; | |
521 sprintf(message, format, classname); | |
522 goto leave; | |
523 } | |
524 (*env)->ReleaseStringUTFChars(env, mainClassName, classname); | |
525 } else { | |
526 mainClassName = NewPlatformString(env, classname); | |
527 if (mainClassName == NULL) { | |
528 const char * format = "Failed to load Main Class: %s"; | |
529 message = (char *)JLI_MemAlloc((strlen(format) + strlen(classname)) * | |
530 sizeof(char) ); | |
531 sprintf(message, format, classname); | |
532 messageDest = JNI_TRUE; | |
533 goto leave; | |
534 } | |
535 classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0); | |
536 if (classname == NULL) { | |
537 ReportExceptionDescription(env); | |
538 goto leave; | |
539 } | |
540 mainClass = LoadClass(env, classname); | |
541 if(mainClass == NULL) { /* exception occured */ | |
542 const char * format = "Could not find the main class: %s. Program will exit."; | |
543 ReportExceptionDescription(env); | |
544 message = (char *)JLI_MemAlloc((strlen(format) + | |
545 strlen(classname)) * sizeof(char) ); | |
546 messageDest = JNI_TRUE; | |
547 sprintf(message, format, classname); | |
548 goto leave; | |
549 } | |
550 (*env)->ReleaseStringUTFChars(env, mainClassName, classname); | |
551 } | |
552 | |
553 /* Get the application's main method */ | |
554 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", | |
555 "([Ljava/lang/String;)V"); | |
556 if (mainID == NULL) { | |
557 if ((*env)->ExceptionOccurred(env)) { | |
558 ReportExceptionDescription(env); | |
559 } else { | |
560 message = "No main method found in specified class."; | |
561 messageDest = JNI_TRUE; | |
562 } | |
563 goto leave; | |
564 } | |
565 | |
566 { /* Make sure the main method is public */ | |
567 jint mods; | |
568 jmethodID mid; | |
569 jobject obj = (*env)->ToReflectedMethod(env, mainClass, | |
570 mainID, JNI_TRUE); | |
571 | |
572 if( obj == NULL) { /* exception occurred */ | |
573 ReportExceptionDescription(env); | |
574 goto leave; | |
575 } | |
576 | |
577 mid = | |
578 (*env)->GetMethodID(env, | |
579 (*env)->GetObjectClass(env, obj), | |
580 "getModifiers", "()I"); | |
581 if ((*env)->ExceptionOccurred(env)) { | |
582 ReportExceptionDescription(env); | |
583 goto leave; | |
584 } | |
585 | |
586 mods = (*env)->CallIntMethod(env, obj, mid); | |
587 if ((mods & 1) == 0) { /* if (!Modifier.isPublic(mods)) ... */ | |
588 message = "Main method not public."; | |
589 messageDest = JNI_TRUE; | |
590 goto leave; | |
591 } | |
592 } | |
593 | |
594 /* Build argument array */ | |
595 mainArgs = NewPlatformStringArray(env, argv, argc); | |
596 if (mainArgs == NULL) { | |
597 ReportExceptionDescription(env); | |
598 goto leave; | |
599 } | |
600 | |
601 /* Invoke main method. */ | |
602 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); | |
603 | |
604 /* | |
605 * The launcher's exit code (in the absence of calls to | |
606 * System.exit) will be non-zero if main threw an exception. | |
607 */ | |
608 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; | |
609 | |
610 /* | |
611 * Detach the main thread so that it appears to have ended when | |
612 * the application's main method exits. This will invoke the | |
613 * uncaught exception handler machinery if main threw an | |
614 * exception. An uncaught exception handler cannot change the | |
615 * launcher's return code except by calling System.exit. | |
616 */ | |
617 if ((*vm)->DetachCurrentThread(vm) != 0) { | |
618 message = "Could not detach main thread."; | |
619 messageDest = JNI_TRUE; | |
620 ret = 1; | |
621 goto leave; | |
622 } | |
623 | |
624 message = NULL; | |
625 | |
626 leave: | |
627 /* | |
628 * Wait for all non-daemon threads to end, then destroy the VM. | |
629 * This will actually create a trivial new Java waiter thread | |
630 * named "DestroyJavaVM", but this will be seen as a different | |
631 * thread from the one that executed main, even though they are | |
632 * the same C thread. This allows mainThread.join() and | |
633 * mainThread.isAlive() to work as expected. | |
634 */ | |
635 (*vm)->DestroyJavaVM(vm); | |
636 | |
637 if(message != NULL && !noExitErrorMessage) | |
638 ReportErrorMessage(message, messageDest); | |
639 return ret; | |
640 } | |
641 | |
642 #ifndef GAMMA | |
643 /* | |
644 * Checks the command line options to find which JVM type was | |
645 * specified. If no command line option was given for the JVM type, | |
646 * the default type is used. The environment variable | |
647 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also | |
648 * checked as ways of specifying which JVM type to invoke. | |
649 */ | |
650 char * | |
651 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { | |
652 int i, argi; | |
653 int argc; | |
654 char **newArgv; | |
655 int newArgvIdx = 0; | |
656 int isVMType; | |
657 int jvmidx = -1; | |
658 char *jvmtype = getenv("JDK_ALTERNATE_VM"); | |
659 | |
660 argc = *pargc; | |
661 | |
662 /* To make things simpler we always copy the argv array */ | |
663 newArgv = JLI_MemAlloc((argc + 1) * sizeof(char *)); | |
664 | |
665 /* The program name is always present */ | |
666 newArgv[newArgvIdx++] = (*argv)[0]; | |
667 | |
668 for (argi = 1; argi < argc; argi++) { | |
669 char *arg = (*argv)[argi]; | |
670 isVMType = 0; | |
671 | |
672 #ifdef JAVA_ARGS | |
673 if (arg[0] != '-') { | |
674 newArgv[newArgvIdx++] = arg; | |
675 continue; | |
676 } | |
677 #else | |
678 if (strcmp(arg, "-classpath") == 0 || | |
679 strcmp(arg, "-cp") == 0) { | |
680 newArgv[newArgvIdx++] = arg; | |
681 argi++; | |
682 if (argi < argc) { | |
683 newArgv[newArgvIdx++] = (*argv)[argi]; | |
684 } | |
685 continue; | |
686 } | |
687 if (arg[0] != '-') break; | |
688 #endif | |
689 | |
690 /* Did the user pass an explicit VM type? */ | |
691 i = KnownVMIndex(arg); | |
692 if (i >= 0) { | |
693 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ | |
694 isVMType = 1; | |
695 *pargc = *pargc - 1; | |
696 } | |
697 | |
698 /* Did the user specify an "alternate" VM? */ | |
699 else if (strncmp(arg, "-XXaltjvm=", 10) == 0 || strncmp(arg, "-J-XXaltjvm=", 12) == 0) { | |
700 isVMType = 1; | |
701 jvmtype = arg+((arg[1]=='X')? 10 : 12); | |
702 jvmidx = -1; | |
703 } | |
704 | |
705 if (!isVMType) { | |
706 newArgv[newArgvIdx++] = arg; | |
707 } | |
708 } | |
709 | |
710 /* | |
711 * Finish copying the arguments if we aborted the above loop. | |
712 * NOTE that if we aborted via "break" then we did NOT copy the | |
713 * last argument above, and in addition argi will be less than | |
714 * argc. | |
715 */ | |
716 while (argi < argc) { | |
717 newArgv[newArgvIdx++] = (*argv)[argi]; | |
718 argi++; | |
719 } | |
720 | |
721 /* argv is null-terminated */ | |
722 newArgv[newArgvIdx] = 0; | |
723 | |
724 /* Copy back argv */ | |
725 *argv = newArgv; | |
726 *pargc = newArgvIdx; | |
727 | |
728 /* use the default VM type if not specified (no alias processing) */ | |
729 if (jvmtype == NULL) { | |
730 char* result = knownVMs[0].name+1; | |
731 /* Use a different VM type if we are on a server class machine? */ | |
732 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && | |
733 (ServerClassMachine() == JNI_TRUE)) { | |
734 result = knownVMs[0].server_class+1; | |
735 } | |
736 if (_launcher_debug) { | |
737 printf("Default VM: %s\n", result); | |
738 } | |
739 return result; | |
740 } | |
741 | |
742 /* if using an alternate VM, no alias processing */ | |
743 if (jvmidx < 0) | |
744 return jvmtype; | |
745 | |
746 /* Resolve aliases first */ | |
747 { | |
748 int loopCount = 0; | |
749 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { | |
750 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); | |
751 | |
752 if (loopCount > knownVMsCount) { | |
753 if (!speculative) { | |
754 ReportErrorMessage("Error: Corrupt jvm.cfg file; cycle in alias list.", | |
755 JNI_TRUE); | |
756 exit(1); | |
757 } else { | |
758 return "ERROR"; | |
759 /* break; */ | |
760 } | |
761 } | |
762 | |
763 if (nextIdx < 0) { | |
764 if (!speculative) { | |
765 ReportErrorMessage2("Error: Unable to resolve VM alias %s", | |
766 knownVMs[jvmidx].alias, JNI_TRUE); | |
767 exit(1); | |
768 } else { | |
769 return "ERROR"; | |
770 } | |
771 } | |
772 jvmidx = nextIdx; | |
773 jvmtype = knownVMs[jvmidx].name+1; | |
774 loopCount++; | |
775 } | |
776 } | |
777 | |
778 switch (knownVMs[jvmidx].flag) { | |
779 case VM_WARN: | |
780 if (!speculative) { | |
781 fprintf(stderr, "Warning: %s VM not supported; %s VM will be used\n", | |
782 jvmtype, knownVMs[0].name + 1); | |
783 } | |
784 /* fall through */ | |
785 case VM_IGNORE: | |
786 jvmtype = knownVMs[jvmidx=0].name + 1; | |
787 /* fall through */ | |
788 case VM_KNOWN: | |
789 break; | |
790 case VM_ERROR: | |
791 if (!speculative) { | |
792 ReportErrorMessage2("Error: %s VM not supported", jvmtype, JNI_TRUE); | |
793 exit(1); | |
794 } else { | |
795 return "ERROR"; | |
796 } | |
797 } | |
798 | |
799 return jvmtype; | |
800 } | |
801 #endif /* ifndef GAMMA */ | |
802 | |
803 # define KB (1024UL) | |
804 # define MB (1024UL * KB) | |
805 # define GB (1024UL * MB) | |
806 | |
807 /* copied from HotSpot function "atomll()" */ | |
808 static int | |
809 parse_stack_size(const char *s, jlong *result) { | |
810 jlong n = 0; | |
811 int args_read = sscanf(s, jlong_format_specifier(), &n); | |
812 if (args_read != 1) { | |
813 return 0; | |
814 } | |
815 while (*s != '\0' && *s >= '0' && *s <= '9') { | |
816 s++; | |
817 } | |
818 // 4705540: illegal if more characters are found after the first non-digit | |
819 if (strlen(s) > 1) { | |
820 return 0; | |
821 } | |
822 switch (*s) { | |
823 case 'T': case 't': | |
824 *result = n * GB * KB; | |
825 return 1; | |
826 case 'G': case 'g': | |
827 *result = n * GB; | |
828 return 1; | |
829 case 'M': case 'm': | |
830 *result = n * MB; | |
831 return 1; | |
832 case 'K': case 'k': | |
833 *result = n * KB; | |
834 return 1; | |
835 case '\0': | |
836 *result = n; | |
837 return 1; | |
838 default: | |
839 /* Create JVM with default stack and let VM handle malformed -Xss string*/ | |
840 return 0; | |
841 } | |
842 } | |
843 | |
844 /* | |
845 * Adds a new VM option with the given given name and value. | |
846 */ | |
847 void | |
848 AddOption(char *str, void *info) | |
849 { | |
850 /* | |
851 * Expand options array if needed to accommodate at least one more | |
852 * VM option. | |
853 */ | |
854 if (numOptions >= maxOptions) { | |
855 if (options == 0) { | |
856 maxOptions = 4; | |
857 options = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); | |
858 } else { | |
859 JavaVMOption *tmp; | |
860 maxOptions *= 2; | |
861 tmp = JLI_MemAlloc(maxOptions * sizeof(JavaVMOption)); | |
862 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); | |
863 JLI_MemFree(options); | |
864 options = tmp; | |
865 } | |
866 } | |
867 options[numOptions].optionString = str; | |
868 options[numOptions++].extraInfo = info; | |
869 | |
870 if (strncmp(str, "-Xss", 4) == 0) { | |
871 jlong tmp; | |
872 if (parse_stack_size(str + 4, &tmp)) { | |
873 threadStackSize = tmp; | |
874 } | |
875 } | |
876 } | |
877 | |
878 static void | |
879 SetClassPath(const char *s) | |
880 { | |
881 char *def; | |
882 s = JLI_WildcardExpandClasspath(s); | |
883 def = JLI_MemAlloc(strlen(s) + 40); | |
884 sprintf(def, "-Djava.class.path=%s", s); | |
885 AddOption(def, NULL); | |
886 } | |
887 | |
888 #ifndef GAMMA | |
889 /* | |
890 * The SelectVersion() routine ensures that an appropriate version of | |
891 * the JRE is running. The specification for the appropriate version | |
892 * is obtained from either the manifest of a jar file (preferred) or | |
893 * from command line options. | |
894 * The routine also parses splash screen command line options and | |
895 * passes on their values in private environment variables. | |
896 */ | |
897 static void | |
898 SelectVersion(int argc, char **argv, char **main_class) | |
899 { | |
900 char *arg; | |
901 char **new_argv; | |
902 char **new_argp; | |
903 char *operand; | |
904 char *version = NULL; | |
905 char *jre = NULL; | |
906 int jarflag = 0; | |
907 int headlessflag = 0; | |
908 int restrict_search = -1; /* -1 implies not known */ | |
909 manifest_info info; | |
910 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; | |
911 char *splash_file_name = NULL; | |
912 char *splash_jar_name = NULL; | |
913 char *env_in; | |
914 int res; | |
915 | |
916 /* | |
917 * If the version has already been selected, set *main_class | |
918 * with the value passed through the environment (if any) and | |
919 * simply return. | |
920 */ | |
921 if ((env_in = getenv(ENV_ENTRY)) != NULL) { | |
922 if (*env_in != '\0') | |
923 *main_class = JLI_StringDup(env_in); | |
924 return; | |
925 } | |
926 | |
927 /* | |
928 * Scan through the arguments for options relevant to multiple JRE | |
929 * support. For reference, the command line syntax is defined as: | |
930 * | |
931 * SYNOPSIS | |
932 * java [options] class [argument...] | |
933 * | |
934 * java [options] -jar file.jar [argument...] | |
935 * | |
936 * As the scan is performed, make a copy of the argument list with | |
937 * the version specification options (new to 1.5) removed, so that | |
938 * a version less than 1.5 can be exec'd. | |
939 * | |
940 * Note that due to the syntax of the native Windows interface | |
941 * CreateProcess(), processing similar to the following exists in | |
942 * the Windows platform specific routine ExecJRE (in java_md.c). | |
943 * Changes here should be reproduced there. | |
944 */ | |
945 new_argv = JLI_MemAlloc((argc + 1) * sizeof(char*)); | |
946 new_argv[0] = argv[0]; | |
947 new_argp = &new_argv[1]; | |
948 argc--; | |
949 argv++; | |
950 while ((arg = *argv) != 0 && *arg == '-') { | |
951 if (strncmp(arg, "-version:", 9) == 0) { | |
952 version = arg + 9; | |
953 } else if (strcmp(arg, "-jre-restrict-search") == 0) { | |
954 restrict_search = 1; | |
955 } else if (strcmp(arg, "-no-jre-restrict-search") == 0) { | |
956 restrict_search = 0; | |
957 } else { | |
958 if (strcmp(arg, "-jar") == 0) | |
959 jarflag = 1; | |
960 /* deal with "unfortunate" classpath syntax */ | |
961 if ((strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) && | |
962 (argc >= 2)) { | |
963 *new_argp++ = arg; | |
964 argc--; | |
965 argv++; | |
966 arg = *argv; | |
967 } | |
968 | |
969 /* | |
970 * Checking for headless toolkit option in the some way as AWT does: | |
971 * "true" means true and any other value means false | |
972 */ | |
973 if (strcmp(arg, "-Djava.awt.headless=true") == 0) { | |
974 headlessflag = 1; | |
975 } else if (strncmp(arg, "-Djava.awt.headless=", 20) == 0) { | |
976 headlessflag = 0; | |
977 } else if (strncmp(arg, "-splash:", 8) == 0) { | |
978 splash_file_name = arg+8; | |
979 } | |
980 *new_argp++ = arg; | |
981 } | |
982 argc--; | |
983 argv++; | |
984 } | |
985 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ | |
986 operand = NULL; | |
987 } else { | |
988 argc--; | |
989 *new_argp++ = operand = *argv++; | |
990 } | |
991 while (argc-- > 0) /* Copy over [argument...] */ | |
992 *new_argp++ = *argv++; | |
993 *new_argp = NULL; | |
994 | |
995 /* | |
996 * If there is a jar file, read the manifest. If the jarfile can't be | |
997 * read, the manifest can't be read from the jar file, or the manifest | |
998 * is corrupt, issue the appropriate error messages and exit. | |
999 * | |
1000 * Even if there isn't a jar file, construct a manifest_info structure | |
1001 * containing the command line information. It's a convenient way to carry | |
1002 * this data around. | |
1003 */ | |
1004 if (jarflag && operand) { | |
1005 if ((res = JLI_ParseManifest(operand, &info)) != 0) { | |
1006 if (res == -1) | |
1007 ReportErrorMessage2("Unable to access jarfile %s", | |
1008 operand, JNI_TRUE); | |
1009 else | |
1010 ReportErrorMessage2("Invalid or corrupt jarfile %s", | |
1011 operand, JNI_TRUE); | |
1012 exit(1); | |
1013 } | |
1014 | |
1015 /* | |
1016 * Command line splash screen option should have precedence | |
1017 * over the manifest, so the manifest data is used only if | |
1018 * splash_file_name has not been initialized above during command | |
1019 * line parsing | |
1020 */ | |
1021 if (!headlessflag && !splash_file_name && info.splashscreen_image_file_name) { | |
1022 splash_file_name = info.splashscreen_image_file_name; | |
1023 splash_jar_name = operand; | |
1024 } | |
1025 } else { | |
1026 info.manifest_version = NULL; | |
1027 info.main_class = NULL; | |
1028 info.jre_version = NULL; | |
1029 info.jre_restrict_search = 0; | |
1030 } | |
1031 | |
1032 /* | |
1033 * Passing on splash screen info in environment variables | |
1034 */ | |
1035 if (splash_file_name && !headlessflag) { | |
1036 char* splash_file_entry = JLI_MemAlloc(strlen(SPLASH_FILE_ENV_ENTRY "=")+strlen(splash_file_name)+1); | |
1037 strcpy(splash_file_entry, SPLASH_FILE_ENV_ENTRY "="); | |
1038 strcat(splash_file_entry, splash_file_name); | |
1039 putenv(splash_file_entry); | |
1040 } | |
1041 if (splash_jar_name && !headlessflag) { | |
1042 char* splash_jar_entry = JLI_MemAlloc(strlen(SPLASH_JAR_ENV_ENTRY "=")+strlen(splash_jar_name)+1); | |
1043 strcpy(splash_jar_entry, SPLASH_JAR_ENV_ENTRY "="); | |
1044 strcat(splash_jar_entry, splash_jar_name); | |
1045 putenv(splash_jar_entry); | |
1046 } | |
1047 | |
1048 /* | |
1049 * The JRE-Version and JRE-Restrict-Search values (if any) from the | |
1050 * manifest are overwritten by any specified on the command line. | |
1051 */ | |
1052 if (version != NULL) | |
1053 info.jre_version = version; | |
1054 if (restrict_search != -1) | |
1055 info.jre_restrict_search = restrict_search; | |
1056 | |
1057 /* | |
1058 * "Valid" returns (other than unrecoverable errors) follow. Set | |
1059 * main_class as a side-effect of this routine. | |
1060 */ | |
1061 if (info.main_class != NULL) | |
1062 *main_class = JLI_StringDup(info.main_class); | |
1063 | |
1064 /* | |
1065 * If no version selection information is found either on the command | |
1066 * line or in the manifest, simply return. | |
1067 */ | |
1068 if (info.jre_version == NULL) { | |
1069 JLI_FreeManifest(); | |
1070 JLI_MemFree(new_argv); | |
1071 return; | |
1072 } | |
1073 | |
1074 /* | |
1075 * Check for correct syntax of the version specification (JSR 56). | |
1076 */ | |
1077 if (!JLI_ValidVersionString(info.jre_version)) { | |
1078 ReportErrorMessage2("Syntax error in version specification \"%s\"", | |
1079 info.jre_version, JNI_TRUE); | |
1080 exit(1); | |
1081 } | |
1082 | |
1083 /* | |
1084 * Find the appropriate JVM on the system. Just to be as forgiving as | |
1085 * possible, if the standard algorithms don't locate an appropriate | |
1086 * jre, check to see if the one running will satisfy the requirements. | |
1087 * This can happen on systems which haven't been set-up for multiple | |
1088 * JRE support. | |
1089 */ | |
1090 jre = LocateJRE(&info); | |
1091 if (_launcher_debug) | |
1092 printf("JRE-Version = %s, JRE-Restrict-Search = %s Selected = %s\n", | |
1093 (info.jre_version?info.jre_version:"null"), | |
1094 (info.jre_restrict_search?"true":"false"), (jre?jre:"null")); | |
1095 if (jre == NULL) { | |
1096 if (JLI_AcceptableRelease(FULL_VERSION, info.jre_version)) { | |
1097 JLI_FreeManifest(); | |
1098 JLI_MemFree(new_argv); | |
1099 return; | |
1100 } else { | |
1101 ReportErrorMessage2( | |
1102 "Unable to locate JRE meeting specification \"%s\"", | |
1103 info.jre_version, JNI_TRUE); | |
1104 exit(1); | |
1105 } | |
1106 } | |
1107 | |
1108 /* | |
1109 * If I'm not the chosen one, exec the chosen one. Returning from | |
1110 * ExecJRE indicates that I am indeed the chosen one. | |
1111 * | |
1112 * The private environment variable _JAVA_VERSION_SET is used to | |
1113 * prevent the chosen one from re-reading the manifest file and | |
1114 * using the values found within to override the (potential) command | |
1115 * line flags stripped from argv (because the target may not | |
1116 * understand them). Passing the MainClass value is an optimization | |
1117 * to avoid locating, expanding and parsing the manifest extra | |
1118 * times. | |
1119 */ | |
1120 if (info.main_class != NULL) { | |
1121 if (strlen(info.main_class) <= MAXNAMELEN) { | |
1122 (void)strcat(env_entry, info.main_class); | |
1123 } else { | |
1124 ReportErrorMessage("Error: main-class: attribute exceeds system limits\n", JNI_TRUE); | |
1125 exit(1); | |
1126 } | |
1127 } | |
1128 (void)putenv(env_entry); | |
1129 ExecJRE(jre, new_argv); | |
1130 JLI_FreeManifest(); | |
1131 JLI_MemFree(new_argv); | |
1132 return; | |
1133 } | |
1134 #endif /* ifndef GAMMA */ | |
1135 | |
1136 /* | |
1137 * Parses command line arguments. Returns JNI_FALSE if launcher | |
1138 * should exit without starting vm (e.g. certain version and usage | |
1139 * options); returns JNI_TRUE if vm needs to be started to process | |
1140 * given options. *pret (the launcher process return value) is set to | |
1141 * 0 for a normal exit. | |
1142 */ | |
1143 static jboolean | |
1144 ParseArguments(int *pargc, char ***pargv, char **pjarfile, | |
1145 char **pclassname, int *pret, const char *jvmpath) | |
1146 { | |
1147 int argc = *pargc; | |
1148 char **argv = *pargv; | |
1149 jboolean jarflag = JNI_FALSE; | |
1150 char *arg; | |
1151 | |
1152 *pret = 1; | |
1153 while ((arg = *argv) != 0 && *arg == '-') { | |
1154 argv++; --argc; | |
1155 if (strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) { | |
1156 if (argc < 1) { | |
1157 ReportErrorMessage2("%s requires class path specification", | |
1158 arg, JNI_TRUE); | |
1159 PrintUsage(); | |
1160 return JNI_FALSE; | |
1161 } | |
1162 SetClassPath(*argv); | |
1163 argv++; --argc; | |
1164 } else if (strcmp(arg, "-jar") == 0) { | |
1165 jarflag = JNI_TRUE; | |
1166 } else if (strcmp(arg, "-help") == 0 || | |
1167 strcmp(arg, "-h") == 0 || | |
1168 strcmp(arg, "-?") == 0) { | |
1169 PrintUsage(); | |
1170 *pret = 0; | |
1171 return JNI_FALSE; | |
1172 } else if (strcmp(arg, "-version") == 0) { | |
1173 printVersion = JNI_TRUE; | |
1174 return JNI_TRUE; | |
1175 } else if (strcmp(arg, "-showversion") == 0) { | |
1176 showVersion = JNI_TRUE; | |
1177 } else if (strcmp(arg, "-X") == 0) { | |
1178 *pret = PrintXUsage(jvmpath); | |
1179 return JNI_FALSE; | |
1180 /* | |
1181 * The following case provide backward compatibility with old-style | |
1182 * command line options. | |
1183 */ | |
1184 } else if (strcmp(arg, "-fullversion") == 0) { | |
1185 fprintf(stderr, "%s full version \"%s\"\n", progname, | |
1186 FULL_VERSION); | |
1187 *pret = 0; | |
1188 return JNI_FALSE; | |
1189 } else if (strcmp(arg, "-verbosegc") == 0) { | |
1190 AddOption("-verbose:gc", NULL); | |
1191 } else if (strcmp(arg, "-t") == 0) { | |
1192 AddOption("-Xt", NULL); | |
1193 } else if (strcmp(arg, "-tm") == 0) { | |
1194 AddOption("-Xtm", NULL); | |
1195 } else if (strcmp(arg, "-debug") == 0) { | |
1196 AddOption("-Xdebug", NULL); | |
1197 } else if (strcmp(arg, "-noclassgc") == 0) { | |
1198 AddOption("-Xnoclassgc", NULL); | |
1199 } else if (strcmp(arg, "-Xfuture") == 0) { | |
1200 AddOption("-Xverify:all", NULL); | |
1201 } else if (strcmp(arg, "-verify") == 0) { | |
1202 AddOption("-Xverify:all", NULL); | |
1203 } else if (strcmp(arg, "-verifyremote") == 0) { | |
1204 AddOption("-Xverify:remote", NULL); | |
1205 } else if (strcmp(arg, "-noverify") == 0) { | |
1206 AddOption("-Xverify:none", NULL); | |
1207 } else if (strcmp(arg, "-XXsuppressExitMessage") == 0) { | |
1208 noExitErrorMessage = 1; | |
1209 } else if (strncmp(arg, "-prof", 5) == 0) { | |
1210 char *p = arg + 5; | |
1211 char *tmp = JLI_MemAlloc(strlen(arg) + 50); | |
1212 if (*p) { | |
1213 sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1); | |
1214 } else { | |
1215 sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof"); | |
1216 } | |
1217 AddOption(tmp, NULL); | |
1218 } else if (strncmp(arg, "-ss", 3) == 0 || | |
1219 strncmp(arg, "-oss", 4) == 0 || | |
1220 strncmp(arg, "-ms", 3) == 0 || | |
1221 strncmp(arg, "-mx", 3) == 0) { | |
1222 char *tmp = JLI_MemAlloc(strlen(arg) + 6); | |
1223 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ | |
1224 AddOption(tmp, NULL); | |
1225 } else if (strcmp(arg, "-checksource") == 0 || | |
1226 strcmp(arg, "-cs") == 0 || | |
1227 strcmp(arg, "-noasyncgc") == 0) { | |
1228 /* No longer supported */ | |
1229 fprintf(stderr, | |
1230 "Warning: %s option is no longer supported.\n", | |
1231 arg); | |
1232 } else if (strncmp(arg, "-version:", 9) == 0 || | |
1233 strcmp(arg, "-no-jre-restrict-search") == 0 || | |
1234 strcmp(arg, "-jre-restrict-search") == 0 || | |
1235 strncmp(arg, "-splash:", 8) == 0) { | |
1236 ; /* Ignore machine independent options already handled */ | |
1237 } else if (RemovableMachineDependentOption(arg) ) { | |
1238 ; /* Do not pass option to vm. */ | |
1239 } | |
1240 else { | |
1241 AddOption(arg, NULL); | |
1242 } | |
1243 } | |
1244 | |
1245 if (--argc >= 0) { | |
1246 if (jarflag) { | |
1247 *pjarfile = *argv++; | |
1248 *pclassname = 0; | |
1249 } else { | |
1250 *pjarfile = 0; | |
1251 *pclassname = *argv++; | |
1252 } | |
1253 *pargc = argc; | |
1254 *pargv = argv; | |
1255 } | |
1256 | |
1257 return JNI_TRUE; | |
1258 } | |
1259 | |
1260 /* | |
1261 * Initializes the Java Virtual Machine. Also frees options array when | |
1262 * finished. | |
1263 */ | |
1264 static jboolean | |
1265 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) | |
1266 { | |
1267 JavaVMInitArgs args; | |
1268 jint r; | |
1269 | |
1270 memset(&args, 0, sizeof(args)); | |
1271 args.version = JNI_VERSION_1_2; | |
1272 args.nOptions = numOptions; | |
1273 args.options = options; | |
1274 args.ignoreUnrecognized = JNI_FALSE; | |
1275 | |
1276 if (_launcher_debug) { | |
1277 int i = 0; | |
1278 printf("JavaVM args:\n "); | |
1279 printf("version 0x%08lx, ", (long)args.version); | |
1280 printf("ignoreUnrecognized is %s, ", | |
1281 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); | |
1282 printf("nOptions is %ld\n", (long)args.nOptions); | |
1283 for (i = 0; i < numOptions; i++) | |
1284 printf(" option[%2d] = '%s'\n", | |
1285 i, args.options[i].optionString); | |
1286 } | |
1287 | |
1288 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); | |
1289 JLI_MemFree(options); | |
1290 return r == JNI_OK; | |
1291 } | |
1292 | |
1293 | |
1294 #define NULL_CHECK0(e) if ((e) == 0) return 0 | |
1295 #define NULL_CHECK(e) if ((e) == 0) return | |
1296 | |
1297 static jstring platformEncoding = NULL; | |
1298 static jstring getPlatformEncoding(JNIEnv *env) { | |
1299 if (platformEncoding == NULL) { | |
1300 jstring propname = (*env)->NewStringUTF(env, "sun.jnu.encoding"); | |
1301 if (propname) { | |
1302 jclass cls; | |
1303 jmethodID mid; | |
1304 NULL_CHECK0 (cls = (*env)->FindClass(env, "java/lang/System")); | |
1305 NULL_CHECK0 (mid = (*env)->GetStaticMethodID( | |
1306 env, cls, | |
1307 "getProperty", | |
1308 "(Ljava/lang/String;)Ljava/lang/String;")); | |
1309 platformEncoding = (*env)->CallStaticObjectMethod ( | |
1310 env, cls, mid, propname); | |
1311 } | |
1312 } | |
1313 return platformEncoding; | |
1314 } | |
1315 | |
1316 static jboolean isEncodingSupported(JNIEnv *env, jstring enc) { | |
1317 jclass cls; | |
1318 jmethodID mid; | |
1319 NULL_CHECK0 (cls = (*env)->FindClass(env, "java/nio/charset/Charset")); | |
1320 NULL_CHECK0 (mid = (*env)->GetStaticMethodID( | |
1321 env, cls, | |
1322 "isSupported", | |
1323 "(Ljava/lang/String;)Z")); | |
1324 return (*env)->CallStaticBooleanMethod(env, cls, mid, enc); | |
1325 } | |
1326 | |
1327 /* | |
1328 * Returns a new Java string object for the specified platform string. | |
1329 */ | |
1330 static jstring | |
1331 NewPlatformString(JNIEnv *env, char *s) | |
1332 { | |
1333 int len = (int)strlen(s); | |
1334 jclass cls; | |
1335 jmethodID mid; | |
1336 jbyteArray ary; | |
1337 jstring enc; | |
1338 | |
1339 if (s == NULL) | |
1340 return 0; | |
1341 enc = getPlatformEncoding(env); | |
1342 | |
1343 ary = (*env)->NewByteArray(env, len); | |
1344 if (ary != 0) { | |
1345 jstring str = 0; | |
1346 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); | |
1347 if (!(*env)->ExceptionOccurred(env)) { | |
1348 if (isEncodingSupported(env, enc) == JNI_TRUE) { | |
1349 NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String")); | |
1350 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", | |
1351 "([BLjava/lang/String;)V")); | |
1352 str = (*env)->NewObject(env, cls, mid, ary, enc); | |
1353 } else { | |
1354 /*If the encoding specified in sun.jnu.encoding is not | |
1355 endorsed by "Charset.isSupported" we have to fall back | |
1356 to use String(byte[]) explicitly here without specifying | |
1357 the encoding name, in which the StringCoding class will | |
1358 pickup the iso-8859-1 as the fallback converter for us. | |
1359 */ | |
1360 NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String")); | |
1361 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", | |
1362 "([B)V")); | |
1363 str = (*env)->NewObject(env, cls, mid, ary); | |
1364 } | |
1365 (*env)->DeleteLocalRef(env, ary); | |
1366 return str; | |
1367 } | |
1368 } | |
1369 return 0; | |
1370 } | |
1371 | |
1372 /* | |
1373 * Returns a new array of Java string objects for the specified | |
1374 * array of platform strings. | |
1375 */ | |
1376 static jobjectArray | |
1377 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) | |
1378 { | |
1379 jarray cls; | |
1380 jarray ary; | |
1381 int i; | |
1382 | |
1383 NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String")); | |
1384 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); | |
1385 for (i = 0; i < strc; i++) { | |
1386 jstring str = NewPlatformString(env, *strv++); | |
1387 NULL_CHECK0(str); | |
1388 (*env)->SetObjectArrayElement(env, ary, i, str); | |
1389 (*env)->DeleteLocalRef(env, str); | |
1390 } | |
1391 return ary; | |
1392 } | |
1393 | |
1394 /* | |
1395 * Loads a class, convert the '.' to '/'. | |
1396 */ | |
1397 static jclass | |
1398 LoadClass(JNIEnv *env, char *name) | |
1399 { | |
1400 char *buf = JLI_MemAlloc(strlen(name) + 1); | |
1401 char *s = buf, *t = name, c; | |
1402 jclass cls; | |
1403 jlong start, end; | |
1404 | |
1405 if (_launcher_debug) | |
1406 start = CounterGet(); | |
1407 | |
1408 do { | |
1409 c = *t++; | |
1410 *s++ = (c == '.') ? '/' : c; | |
1411 } while (c != '\0'); | |
1412 cls = (*env)->FindClass(env, buf); | |
1413 JLI_MemFree(buf); | |
1414 | |
1415 if (_launcher_debug) { | |
1416 end = CounterGet(); | |
1417 printf("%ld micro seconds to load main class\n", | |
1418 (long)(jint)Counter2Micros(end-start)); | |
1419 printf("----_JAVA_LAUNCHER_DEBUG----\n"); | |
1420 } | |
1421 | |
1422 return cls; | |
1423 } | |
1424 | |
1425 | |
1426 /* | |
1427 * Returns the main class name for the specified jar file. | |
1428 */ | |
1429 static jstring | |
1430 GetMainClassName(JNIEnv *env, char *jarname) | |
1431 { | |
1432 #define MAIN_CLASS "Main-Class" | |
1433 jclass cls; | |
1434 jmethodID mid; | |
1435 jobject jar, man, attr; | |
1436 jstring str, result = 0; | |
1437 | |
1438 NULL_CHECK0(cls = (*env)->FindClass(env, "java/util/jar/JarFile")); | |
1439 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", | |
1440 "(Ljava/lang/String;)V")); | |
1441 NULL_CHECK0(str = NewPlatformString(env, jarname)); | |
1442 NULL_CHECK0(jar = (*env)->NewObject(env, cls, mid, str)); | |
1443 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "getManifest", | |
1444 "()Ljava/util/jar/Manifest;")); | |
1445 man = (*env)->CallObjectMethod(env, jar, mid); | |
1446 if (man != 0) { | |
1447 NULL_CHECK0(mid = (*env)->GetMethodID(env, | |
1448 (*env)->GetObjectClass(env, man), | |
1449 "getMainAttributes", | |
1450 "()Ljava/util/jar/Attributes;")); | |
1451 attr = (*env)->CallObjectMethod(env, man, mid); | |
1452 if (attr != 0) { | |
1453 NULL_CHECK0(mid = (*env)->GetMethodID(env, | |
1454 (*env)->GetObjectClass(env, attr), | |
1455 "getValue", | |
1456 "(Ljava/lang/String;)Ljava/lang/String;")); | |
1457 NULL_CHECK0(str = NewPlatformString(env, MAIN_CLASS)); | |
1458 result = (*env)->CallObjectMethod(env, attr, mid, str); | |
1459 } | |
1460 } | |
1461 return result; | |
1462 } | |
1463 | |
1464 #ifdef JAVA_ARGS | |
1465 static char *java_args[] = JAVA_ARGS; | |
1466 static char *app_classpath[] = APP_CLASSPATH; | |
1467 | |
1468 /* | |
1469 * For tools, convert command line args thus: | |
1470 * javac -cp foo:foo/"*" -J-ms32m ... | |
1471 * java -ms32m -cp JLI_WildcardExpandClasspath(foo:foo/"*") ... | |
1472 */ | |
1473 static void | |
1474 TranslateApplicationArgs(int *pargc, char ***pargv) | |
1475 { | |
1476 const int NUM_ARGS = (sizeof(java_args) / sizeof(char *)); | |
1477 int argc = *pargc; | |
1478 char **argv = *pargv; | |
1479 int nargc = argc + NUM_ARGS; | |
1480 char **nargv = JLI_MemAlloc((nargc + 1) * sizeof(char *)); | |
1481 int i; | |
1482 | |
1483 *pargc = nargc; | |
1484 *pargv = nargv; | |
1485 | |
1486 /* Copy the VM arguments (i.e. prefixed with -J) */ | |
1487 for (i = 0; i < NUM_ARGS; i++) { | |
1488 char *arg = java_args[i]; | |
1489 if (arg[0] == '-' && arg[1] == 'J') { | |
1490 *nargv++ = arg + 2; | |
1491 } | |
1492 } | |
1493 | |
1494 for (i = 0; i < argc; i++) { | |
1495 char *arg = argv[i]; | |
1496 if (arg[0] == '-' && arg[1] == 'J') { | |
1497 if (arg[2] == '\0') { | |
1498 ReportErrorMessage("Error: the -J option should not be " | |
1499 "followed by a space.", JNI_TRUE); | |
1500 exit(1); | |
1501 } | |
1502 *nargv++ = arg + 2; | |
1503 } | |
1504 } | |
1505 | |
1506 /* Copy the rest of the arguments */ | |
1507 for (i = 0; i < NUM_ARGS; i++) { | |
1508 char *arg = java_args[i]; | |
1509 if (arg[0] != '-' || arg[1] != 'J') { | |
1510 *nargv++ = arg; | |
1511 } | |
1512 } | |
1513 for (i = 0; i < argc; i++) { | |
1514 char *arg = argv[i]; | |
1515 if (arg[0] == '-') { | |
1516 if (arg[1] == 'J') | |
1517 continue; | |
1518 #ifdef EXPAND_CLASSPATH_WILDCARDS | |
1519 if (arg[1] == 'c' | |
1520 && (strcmp(arg, "-cp") == 0 || | |
1521 strcmp(arg, "-classpath") == 0) | |
1522 && i < argc - 1) { | |
1523 *nargv++ = arg; | |
1524 *nargv++ = (char *) JLI_WildcardExpandClasspath(argv[i+1]); | |
1525 i++; | |
1526 continue; | |
1527 } | |
1528 #endif | |
1529 } | |
1530 *nargv++ = arg; | |
1531 } | |
1532 *nargv = 0; | |
1533 } | |
1534 | |
1535 /* | |
1536 * For our tools, we try to add 3 VM options: | |
1537 * -Denv.class.path=<envcp> | |
1538 * -Dapplication.home=<apphome> | |
1539 * -Djava.class.path=<appcp> | |
1540 * <envcp> is the user's setting of CLASSPATH -- for instance the user | |
1541 * tells javac where to find binary classes through this environment | |
1542 * variable. Notice that users will be able to compile against our | |
1543 * tools classes (sun.tools.javac.Main) only if they explicitly add | |
1544 * tools.jar to CLASSPATH. | |
1545 * <apphome> is the directory where the application is installed. | |
1546 * <appcp> is the classpath to where our apps' classfiles are. | |
1547 */ | |
1548 static jboolean | |
1549 AddApplicationOptions() | |
1550 { | |
1551 const int NUM_APP_CLASSPATH = (sizeof(app_classpath) / sizeof(char *)); | |
1552 char *envcp, *appcp, *apphome; | |
1553 char home[MAXPATHLEN]; /* application home */ | |
1554 char separator[] = { PATH_SEPARATOR, '\0' }; | |
1555 int size, i; | |
1556 int strlenHome; | |
1557 | |
1558 { | |
1559 const char *s = getenv("CLASSPATH"); | |
1560 if (s) { | |
1561 s = (char *) JLI_WildcardExpandClasspath(s); | |
1562 /* 40 for -Denv.class.path= */ | |
1563 envcp = (char *)JLI_MemAlloc(strlen(s) + 40); | |
1564 sprintf(envcp, "-Denv.class.path=%s", s); | |
1565 AddOption(envcp, NULL); | |
1566 } | |
1567 } | |
1568 | |
1569 if (!GetApplicationHome(home, sizeof(home))) { | |
1570 ReportErrorMessage("Can't determine application home", JNI_TRUE); | |
1571 return JNI_FALSE; | |
1572 } | |
1573 | |
1574 /* 40 for '-Dapplication.home=' */ | |
1575 apphome = (char *)JLI_MemAlloc(strlen(home) + 40); | |
1576 sprintf(apphome, "-Dapplication.home=%s", home); | |
1577 AddOption(apphome, NULL); | |
1578 | |
1579 /* How big is the application's classpath? */ | |
1580 size = 40; /* 40: "-Djava.class.path=" */ | |
1581 strlenHome = (int)strlen(home); | |
1582 for (i = 0; i < NUM_APP_CLASSPATH; i++) { | |
1583 size += strlenHome + (int)strlen(app_classpath[i]) + 1; /* 1: separator */ | |
1584 } | |
1585 appcp = (char *)JLI_MemAlloc(size + 1); | |
1586 strcpy(appcp, "-Djava.class.path="); | |
1587 for (i = 0; i < NUM_APP_CLASSPATH; i++) { | |
1588 strcat(appcp, home); /* c:\program files\myapp */ | |
1589 strcat(appcp, app_classpath[i]); /* \lib\myapp.jar */ | |
1590 strcat(appcp, separator); /* ; */ | |
1591 } | |
1592 appcp[strlen(appcp)-1] = '\0'; /* remove trailing path separator */ | |
1593 AddOption(appcp, NULL); | |
1594 return JNI_TRUE; | |
1595 } | |
1596 #endif /* JAVA_ARGS */ | |
1597 | |
1598 /* | |
1599 * inject the -Dsun.java.command pseudo property into the args structure | |
1600 * this pseudo property is used in the HotSpot VM to expose the | |
1601 * Java class name and arguments to the main method to the VM. The | |
1602 * HotSpot VM uses this pseudo property to store the Java class name | |
1603 * (or jar file name) and the arguments to the class's main method | |
1604 * to the instrumentation memory region. The sun.java.command pseudo | |
1605 * property is not exported by HotSpot to the Java layer. | |
1606 */ | |
1607 void | |
1608 SetJavaCommandLineProp(char *classname, char *jarfile, | |
1609 int argc, char **argv) | |
1610 { | |
1611 | |
1612 int i = 0; | |
1613 size_t len = 0; | |
1614 char* javaCommand = NULL; | |
1615 char* dashDstr = "-Dsun.java.command="; | |
1616 | |
1617 if (classname == NULL && jarfile == NULL) { | |
1618 /* unexpected, one of these should be set. just return without | |
1619 * setting the property | |
1620 */ | |
1621 return; | |
1622 } | |
1623 | |
1624 /* if the class name is not set, then use the jarfile name */ | |
1625 if (classname == NULL) { | |
1626 classname = jarfile; | |
1627 } | |
1628 | |
1629 /* determine the amount of memory to allocate assuming | |
1630 * the individual components will be space separated | |
1631 */ | |
1632 len = strlen(classname); | |
1633 for (i = 0; i < argc; i++) { | |
1634 len += strlen(argv[i]) + 1; | |
1635 } | |
1636 | |
1637 /* allocate the memory */ | |
1638 javaCommand = (char*) JLI_MemAlloc(len + strlen(dashDstr) + 1); | |
1639 | |
1640 /* build the -D string */ | |
1641 *javaCommand = '\0'; | |
1642 strcat(javaCommand, dashDstr); | |
1643 strcat(javaCommand, classname); | |
1644 | |
1645 for (i = 0; i < argc; i++) { | |
1646 /* the components of the string are space separated. In | |
1647 * the case of embedded white space, the relationship of | |
1648 * the white space separated components to their true | |
1649 * positional arguments will be ambiguous. This issue may | |
1650 * be addressed in a future release. | |
1651 */ | |
1652 strcat(javaCommand, " "); | |
1653 strcat(javaCommand, argv[i]); | |
1654 } | |
1655 | |
1656 AddOption(javaCommand, NULL); | |
1657 } | |
1658 | |
1659 /* | |
1660 * JVM would like to know if it's created by a standard Sun launcher, or by | |
1661 * user native application, the following property indicates the former. | |
1662 */ | |
1663 void SetJavaLauncherProp() { | |
1664 AddOption("-Dsun.java.launcher=" LAUNCHER_TYPE, NULL); | |
1665 } | |
1666 | |
1667 /* | |
1668 * Prints the version information from the java.version and other properties. | |
1669 */ | |
1670 static void | |
1671 PrintJavaVersion(JNIEnv *env) | |
1672 { | |
1673 jclass ver; | |
1674 jmethodID print; | |
1675 | |
1676 NULL_CHECK(ver = (*env)->FindClass(env, "sun/misc/Version")); | |
1677 NULL_CHECK(print = (*env)->GetStaticMethodID(env, ver, "print", "()V")); | |
1678 | |
1679 (*env)->CallStaticVoidMethod(env, ver, print); | |
1680 } | |
1681 | |
1682 /* | |
1683 * Prints default usage message. | |
1684 */ | |
1685 static void | |
1686 PrintUsage(void) | |
1687 { | |
1688 #ifndef GAMMA | |
1689 int i; | |
1690 #endif | |
1691 | |
1692 fprintf(stdout, | |
1693 "Usage: %s [-options] class [args...]\n" | |
1694 " (to execute a class)\n" | |
1695 " or %s [-options] -jar jarfile [args...]\n" | |
1696 " (to execute a jar file)\n" | |
1697 "\n" | |
1698 "where options include:\n", | |
1699 progname, | |
1700 progname); | |
1701 | |
1702 #ifndef GAMMA | |
1703 PrintMachineDependentOptions(); | |
1704 | |
1705 if ((knownVMs[0].flag == VM_KNOWN) || | |
1706 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { | |
1707 fprintf(stdout, " %s\t to select the \"%s\" VM\n", | |
1708 knownVMs[0].name, knownVMs[0].name+1); | |
1709 } | |
1710 for (i=1; i<knownVMsCount; i++) { | |
1711 if (knownVMs[i].flag == VM_KNOWN) | |
1712 fprintf(stdout, " %s\t to select the \"%s\" VM\n", | |
1713 knownVMs[i].name, knownVMs[i].name+1); | |
1714 } | |
1715 for (i=1; i<knownVMsCount; i++) { | |
1716 if (knownVMs[i].flag == VM_ALIASED_TO) | |
1717 fprintf(stdout, " %s\t is a synonym for " | |
1718 "the \"%s\" VM [deprecated]\n", | |
1719 knownVMs[i].name, knownVMs[i].alias+1); | |
1720 } | |
1721 /* The first known VM is the default */ | |
1722 { | |
1723 const char* defaultVM = knownVMs[0].name+1; | |
1724 const char* punctuation = "."; | |
1725 const char* reason = ""; | |
1726 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && | |
1727 (ServerClassMachine() == JNI_TRUE)) { | |
1728 defaultVM = knownVMs[0].server_class+1; | |
1729 punctuation = ", "; | |
1730 reason = "because you are running on a server-class machine.\n"; | |
1731 } | |
1732 fprintf(stdout, " The default VM is %s%s\n", | |
1733 defaultVM, punctuation); | |
1734 fprintf(stdout, " %s\n", | |
1735 reason); | |
1736 } | |
1737 #endif /* ifndef GAMMA */ | |
1738 | |
1739 fprintf(stdout, | |
1740 " -cp <class search path of directories and zip/jar files>\n" | |
1741 " -classpath <class search path of directories and zip/jar files>\n" | |
1742 " A %c separated list of directories, JAR archives,\n" | |
1743 " and ZIP archives to search for class files.\n" | |
1744 " -D<name>=<value>\n" | |
1745 " set a system property\n" | |
1746 " -verbose[:class|gc|jni]\n" | |
1747 " enable verbose output\n" | |
1748 " -version print product version and exit\n" | |
1749 " -version:<value>\n" | |
1750 " require the specified version to run\n" | |
1751 " -showversion print product version and continue\n" | |
1752 " -jre-restrict-search | -jre-no-restrict-search\n" | |
1753 " include/exclude user private JREs in the version search\n" | |
1754 " -? -help print this help message\n" | |
1755 " -X print help on non-standard options\n" | |
1756 " -ea[:<packagename>...|:<classname>]\n" | |
1757 " -enableassertions[:<packagename>...|:<classname>]\n" | |
1758 " enable assertions\n" | |
1759 " -da[:<packagename>...|:<classname>]\n" | |
1760 " -disableassertions[:<packagename>...|:<classname>]\n" | |
1761 " disable assertions\n" | |
1762 " -esa | -enablesystemassertions\n" | |
1763 " enable system assertions\n" | |
1764 " -dsa | -disablesystemassertions\n" | |
1765 " disable system assertions\n" | |
1766 " -agentlib:<libname>[=<options>]\n" | |
1767 " load native agent library <libname>, e.g. -agentlib:hprof\n" | |
1768 " see also, -agentlib:jdwp=help and -agentlib:hprof=help\n" | |
1769 " -agentpath:<pathname>[=<options>]\n" | |
1770 " load native agent library by full pathname\n" | |
1771 " -javaagent:<jarpath>[=<options>]\n" | |
1772 " load Java programming language agent, see java.lang.instrument\n" | |
1773 " -splash:<imagepath>\n" | |
1774 " show splash screen with specified image\n" | |
1775 | |
1776 ,PATH_SEPARATOR); | |
1777 } | |
1778 | |
1779 /* | |
1780 * Print usage message for -X options. | |
1781 */ | |
1782 static jint | |
1783 PrintXUsage(const char *jvmpath) | |
1784 { | |
1785 /* | |
1786 A 32 bit cushion to prevent buffer overrun, noting that | |
1787 fopen(3C) may fail if the buffer exceeds MAXPATHLEN. | |
1788 */ | |
1789 char path[MAXPATHLEN+32]; | |
1790 char buf[128]; | |
1791 size_t n; | |
1792 FILE *fp; | |
1793 static const char Xusage_txt[] = "/Xusage.txt"; | |
1794 | |
1795 strcpy(path, jvmpath); | |
1796 /* Note the FILE_SEPARATOR is platform dependent */ | |
1797 strcpy(strrchr(path, FILE_SEPARATOR), Xusage_txt); | |
1798 fp = fopen(path, "r"); | |
1799 if (fp == 0) { | |
1800 fprintf(stderr, "Can't open %s\n", path); | |
1801 return 1; | |
1802 } | |
1803 while ((n = fread(buf, 1, sizeof(buf), fp)) != 0) { | |
1804 fwrite(buf, 1, n, stdout); | |
1805 } | |
1806 fclose(fp); | |
1807 return 0; | |
1808 } | |
1809 | |
1810 #ifndef GAMMA | |
1811 /* | |
1812 * Read the jvm.cfg file and fill the knownJVMs[] array. | |
1813 * | |
1814 * The functionality of the jvm.cfg file is subject to change without | |
1815 * notice and the mechanism will be removed in the future. | |
1816 * | |
1817 * The lexical structure of the jvm.cfg file is as follows: | |
1818 * | |
1819 * jvmcfg := { vmLine } | |
1820 * vmLine := knownLine | |
1821 * | aliasLine | |
1822 * | warnLine | |
1823 * | ignoreLine | |
1824 * | errorLine | |
1825 * | predicateLine | |
1826 * | commentLine | |
1827 * knownLine := flag "KNOWN" EOL | |
1828 * warnLine := flag "WARN" EOL | |
1829 * ignoreLine := flag "IGNORE" EOL | |
1830 * errorLine := flag "ERROR" EOL | |
1831 * aliasLine := flag "ALIASED_TO" flag EOL | |
1832 * predicateLine := flag "IF_SERVER_CLASS" flag EOL | |
1833 * commentLine := "#" text EOL | |
1834 * flag := "-" identifier | |
1835 * | |
1836 * The semantics are that when someone specifies a flag on the command line: | |
1837 * - if the flag appears on a knownLine, then the identifier is used as | |
1838 * the name of the directory holding the JVM library (the name of the JVM). | |
1839 * - if the flag appears as the first flag on an aliasLine, the identifier | |
1840 * of the second flag is used as the name of the JVM. | |
1841 * - if the flag appears on a warnLine, the identifier is used as the | |
1842 * name of the JVM, but a warning is generated. | |
1843 * - if the flag appears on an ignoreLine, the identifier is recognized as the | |
1844 * name of a JVM, but the identifier is ignored and the default vm used | |
1845 * - if the flag appears on an errorLine, an error is generated. | |
1846 * - if the flag appears as the first flag on a predicateLine, and | |
1847 * the machine on which you are running passes the predicate indicated, | |
1848 * then the identifier of the second flag is used as the name of the JVM, | |
1849 * otherwise the identifier of the first flag is used as the name of the JVM. | |
1850 * If no flag is given on the command line, the first vmLine of the jvm.cfg | |
1851 * file determines the name of the JVM. | |
1852 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, | |
1853 * since they only make sense if someone hasn't specified the name of the | |
1854 * JVM on the command line. | |
1855 * | |
1856 * The intent of the jvm.cfg file is to allow several JVM libraries to | |
1857 * be installed in different subdirectories of a single JRE installation, | |
1858 * for space-savings and convenience in testing. | |
1859 * The intent is explicitly not to provide a full aliasing or predicate | |
1860 * mechanism. | |
1861 */ | |
1862 jint | |
1863 ReadKnownVMs(const char *jrepath, char * arch, jboolean speculative) | |
1864 { | |
1865 FILE *jvmCfg; | |
1866 char jvmCfgName[MAXPATHLEN+20]; | |
1867 char line[MAXPATHLEN+20]; | |
1868 int cnt = 0; | |
1869 int lineno = 0; | |
1870 jlong start, end; | |
1871 int vmType; | |
1872 char *tmpPtr; | |
1873 char *altVMName = NULL; | |
1874 char *serverClassVMName = NULL; | |
1875 static char *whiteSpace = " \t"; | |
1876 if (_launcher_debug) { | |
1877 start = CounterGet(); | |
1878 } | |
1879 | |
1880 strcpy(jvmCfgName, jrepath); | |
1881 strcat(jvmCfgName, FILESEP "lib" FILESEP); | |
1882 strcat(jvmCfgName, arch); | |
1883 strcat(jvmCfgName, FILESEP "jvm.cfg"); | |
1884 | |
1885 jvmCfg = fopen(jvmCfgName, "r"); | |
1886 if (jvmCfg == NULL) { | |
1887 if (!speculative) { | |
1888 ReportErrorMessage2("Error: could not open `%s'", jvmCfgName, | |
1889 JNI_TRUE); | |
1890 exit(1); | |
1891 } else { | |
1892 return -1; | |
1893 } | |
1894 } | |
1895 while (fgets(line, sizeof(line), jvmCfg) != NULL) { | |
1896 vmType = VM_UNKNOWN; | |
1897 lineno++; | |
1898 if (line[0] == '#') | |
1899 continue; | |
1900 if (line[0] != '-') { | |
1901 fprintf(stderr, "Warning: no leading - on line %d of `%s'\n", | |
1902 lineno, jvmCfgName); | |
1903 } | |
1904 if (cnt >= knownVMsLimit) { | |
1905 GrowKnownVMs(cnt); | |
1906 } | |
1907 line[strlen(line)-1] = '\0'; /* remove trailing newline */ | |
1908 tmpPtr = line + strcspn(line, whiteSpace); | |
1909 if (*tmpPtr == 0) { | |
1910 fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n", | |
1911 lineno, jvmCfgName); | |
1912 } else { | |
1913 /* Null-terminate this string for JLI_StringDup below */ | |
1914 *tmpPtr++ = 0; | |
1915 tmpPtr += strspn(tmpPtr, whiteSpace); | |
1916 if (*tmpPtr == 0) { | |
1917 fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n", | |
1918 lineno, jvmCfgName); | |
1919 } else { | |
1920 if (!strncmp(tmpPtr, "KNOWN", strlen("KNOWN"))) { | |
1921 vmType = VM_KNOWN; | |
1922 } else if (!strncmp(tmpPtr, "ALIASED_TO", strlen("ALIASED_TO"))) { | |
1923 tmpPtr += strcspn(tmpPtr, whiteSpace); | |
1924 if (*tmpPtr != 0) { | |
1925 tmpPtr += strspn(tmpPtr, whiteSpace); | |
1926 } | |
1927 if (*tmpPtr == 0) { | |
1928 fprintf(stderr, "Warning: missing VM alias on line %d of `%s'\n", | |
1929 lineno, jvmCfgName); | |
1930 } else { | |
1931 /* Null terminate altVMName */ | |
1932 altVMName = tmpPtr; | |
1933 tmpPtr += strcspn(tmpPtr, whiteSpace); | |
1934 *tmpPtr = 0; | |
1935 vmType = VM_ALIASED_TO; | |
1936 } | |
1937 } else if (!strncmp(tmpPtr, "WARN", strlen("WARN"))) { | |
1938 vmType = VM_WARN; | |
1939 } else if (!strncmp(tmpPtr, "IGNORE", strlen("IGNORE"))) { | |
1940 vmType = VM_IGNORE; | |
1941 } else if (!strncmp(tmpPtr, "ERROR", strlen("ERROR"))) { | |
1942 vmType = VM_ERROR; | |
1943 } else if (!strncmp(tmpPtr, | |
1944 "IF_SERVER_CLASS", | |
1945 strlen("IF_SERVER_CLASS"))) { | |
1946 tmpPtr += strcspn(tmpPtr, whiteSpace); | |
1947 if (*tmpPtr != 0) { | |
1948 tmpPtr += strspn(tmpPtr, whiteSpace); | |
1949 } | |
1950 if (*tmpPtr == 0) { | |
1951 fprintf(stderr, "Warning: missing server class VM on line %d of `%s'\n", | |
1952 lineno, jvmCfgName); | |
1953 } else { | |
1954 /* Null terminate server class VM name */ | |
1955 serverClassVMName = tmpPtr; | |
1956 tmpPtr += strcspn(tmpPtr, whiteSpace); | |
1957 *tmpPtr = 0; | |
1958 vmType = VM_IF_SERVER_CLASS; | |
1959 } | |
1960 } else { | |
1961 fprintf(stderr, "Warning: unknown VM type on line %d of `%s'\n", | |
1962 lineno, &jvmCfgName[0]); | |
1963 vmType = VM_KNOWN; | |
1964 } | |
1965 } | |
1966 } | |
1967 | |
1968 if (_launcher_debug) | |
1969 printf("jvm.cfg[%d] = ->%s<-\n", cnt, line); | |
1970 if (vmType != VM_UNKNOWN) { | |
1971 knownVMs[cnt].name = JLI_StringDup(line); | |
1972 knownVMs[cnt].flag = vmType; | |
1973 switch (vmType) { | |
1974 default: | |
1975 break; | |
1976 case VM_ALIASED_TO: | |
1977 knownVMs[cnt].alias = JLI_StringDup(altVMName); | |
1978 if (_launcher_debug) { | |
1979 printf(" name: %s vmType: %s alias: %s\n", | |
1980 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); | |
1981 } | |
1982 break; | |
1983 case VM_IF_SERVER_CLASS: | |
1984 knownVMs[cnt].server_class = JLI_StringDup(serverClassVMName); | |
1985 if (_launcher_debug) { | |
1986 printf(" name: %s vmType: %s server_class: %s\n", | |
1987 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); | |
1988 } | |
1989 break; | |
1990 } | |
1991 cnt++; | |
1992 } | |
1993 } | |
1994 fclose(jvmCfg); | |
1995 knownVMsCount = cnt; | |
1996 | |
1997 if (_launcher_debug) { | |
1998 end = CounterGet(); | |
1999 printf("%ld micro seconds to parse jvm.cfg\n", | |
2000 (long)(jint)Counter2Micros(end-start)); | |
2001 } | |
2002 | |
2003 return cnt; | |
2004 } | |
2005 | |
2006 | |
2007 static void | |
2008 GrowKnownVMs(int minimum) | |
2009 { | |
2010 struct vmdesc* newKnownVMs; | |
2011 int newMax; | |
2012 | |
2013 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); | |
2014 if (newMax <= minimum) { | |
2015 newMax = minimum; | |
2016 } | |
2017 newKnownVMs = (struct vmdesc*) JLI_MemAlloc(newMax * sizeof(struct vmdesc)); | |
2018 if (knownVMs != NULL) { | |
2019 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); | |
2020 } | |
2021 JLI_MemFree(knownVMs); | |
2022 knownVMs = newKnownVMs; | |
2023 knownVMsLimit = newMax; | |
2024 } | |
2025 | |
2026 | |
2027 /* Returns index of VM or -1 if not found */ | |
2028 static int | |
2029 KnownVMIndex(const char* name) | |
2030 { | |
2031 int i; | |
2032 if (strncmp(name, "-J", 2) == 0) name += 2; | |
2033 for (i = 0; i < knownVMsCount; i++) { | |
2034 if (!strcmp(name, knownVMs[i].name)) { | |
2035 return i; | |
2036 } | |
2037 } | |
2038 return -1; | |
2039 } | |
2040 | |
2041 static void | |
2042 FreeKnownVMs() | |
2043 { | |
2044 int i; | |
2045 for (i = 0; i < knownVMsCount; i++) { | |
2046 JLI_MemFree(knownVMs[i].name); | |
2047 knownVMs[i].name = NULL; | |
2048 } | |
2049 JLI_MemFree(knownVMs); | |
2050 } | |
2051 | |
2052 | |
2053 /* | |
2054 * Displays the splash screen according to the jar file name | |
2055 * and image file names stored in environment variables | |
2056 */ | |
2057 static void | |
2058 ShowSplashScreen() | |
2059 { | |
2060 const char *jar_name = getenv(SPLASH_JAR_ENV_ENTRY); | |
2061 const char *file_name = getenv(SPLASH_FILE_ENV_ENTRY); | |
2062 int data_size; | |
2063 void *image_data; | |
2064 if (jar_name) { | |
2065 image_data = JLI_JarUnpackFile(jar_name, file_name, &data_size); | |
2066 if (image_data) { | |
2067 DoSplashInit(); | |
2068 DoSplashLoadMemory(image_data, data_size); | |
2069 JLI_MemFree(image_data); | |
2070 } | |
2071 } else if (file_name) { | |
2072 DoSplashInit(); | |
2073 DoSplashLoadFile(file_name); | |
2074 } else { | |
2075 return; | |
2076 } | |
2077 DoSplashSetFileJarName(file_name, jar_name); | |
2078 } | |
2079 | |
2080 #endif /* ifndef GAMMA */ |