Mercurial > hg > truffle
comparison src/os/solaris/launcher/java.c @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | f008d3631bd1 |
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1 /* | |
2 * Copyright 1998-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 /* | |
26 * Gamma (Hotspot internal engineering test) launcher based on 1.6.0-b28 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 TranslateDashJArgs | |
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 "java.h" | |
83 | |
84 #ifndef GAMMA | |
85 #include "manifest_info.h" | |
86 #include "version_comp.h" | |
87 #endif | |
88 | |
89 #ifndef FULL_VERSION | |
90 #define FULL_VERSION JDK_MAJOR_VERSION "." JDK_MINOR_VERSION | |
91 #endif | |
92 | |
93 /* | |
94 * The following environment variable is used to influence the behavior | |
95 * of the jre exec'd through the SelectVersion routine. The command line | |
96 * options which specify the version are not passed to the exec'd version, | |
97 * because that jre may be an older version which wouldn't recognize them. | |
98 * This environment variable is known to this (and later) version and serves | |
99 * to suppress the version selection code. This is not only for efficiency, | |
100 * but also for correctness, since any command line options have been | |
101 * removed which would cause any value found in the manifest to be used. | |
102 * This would be incorrect because the command line options are defined | |
103 * to take precedence. | |
104 * | |
105 * The value associated with this environment variable is the MainClass | |
106 * name from within the executable jar file (if any). This is strictly a | |
107 * performance enhancement to avoid re-reading the jar file manifest. | |
108 * | |
109 * A NOTE TO DEVELOPERS: For performance reasons it is important that | |
110 * the program image remain relatively small until after SelectVersion | |
111 * CreateExecutionEnvironment have finished their possibly recursive | |
112 * processing. Watch everything, but resist all temptations to use Java | |
113 * interfaces. | |
114 */ | |
115 #define ENV_ENTRY "_JAVA_VERSION_SET" | |
116 | |
117 static jboolean printVersion = JNI_FALSE; /* print and exit */ | |
118 static jboolean showVersion = JNI_FALSE; /* print but continue */ | |
119 static char *progname; | |
120 jboolean _launcher_debug = JNI_FALSE; | |
121 | |
122 /* | |
123 * List of VM options to be specified when the VM is created. | |
124 */ | |
125 static JavaVMOption *options; | |
126 static int numOptions, maxOptions; | |
127 | |
128 /* | |
129 * Prototypes for functions internal to launcher. | |
130 */ | |
131 static void AddOption(char *str, void *info); | |
132 static void SetClassPath(char *s); | |
133 static void SelectVersion(int argc, char **argv, char **main_class); | |
134 static jboolean ParseArguments(int *pargc, char ***pargv, char **pjarfile, | |
135 char **pclassname, int *pret); | |
136 static jboolean InitializeJVM(JavaVM **pvm, JNIEnv **penv, | |
137 InvocationFunctions *ifn); | |
138 static jstring NewPlatformString(JNIEnv *env, char *s); | |
139 static jobjectArray NewPlatformStringArray(JNIEnv *env, char **strv, int strc); | |
140 static jclass LoadClass(JNIEnv *env, char *name); | |
141 static jstring GetMainClassName(JNIEnv *env, char *jarname); | |
142 static void SetJavaCommandLineProp(char* classname, char* jarfile, int argc, char** argv); | |
143 #ifdef GAMMA | |
144 static void SetJavaLauncherProp(void); | |
145 #endif | |
146 | |
147 #ifdef JAVA_ARGS | |
148 static void TranslateDashJArgs(int *pargc, char ***pargv); | |
149 static jboolean AddApplicationOptions(void); | |
150 #endif | |
151 | |
152 static void PrintJavaVersion(JNIEnv *env); | |
153 static void PrintUsage(void); | |
154 static jint PrintXUsage(void); | |
155 | |
156 static void SetPaths(int argc, char **argv); | |
157 | |
158 /* Maximum supported entries from jvm.cfg. */ | |
159 #define INIT_MAX_KNOWN_VMS 10 | |
160 /* Values for vmdesc.flag */ | |
161 #define VM_UNKNOWN -1 | |
162 #define VM_KNOWN 0 | |
163 #define VM_ALIASED_TO 1 | |
164 #define VM_WARN 2 | |
165 #define VM_ERROR 3 | |
166 #define VM_IF_SERVER_CLASS 4 | |
167 #define VM_IGNORE 5 | |
168 struct vmdesc { | |
169 char *name; | |
170 int flag; | |
171 char *alias; | |
172 char *server_class; | |
173 }; | |
174 static struct vmdesc *knownVMs = NULL; | |
175 static int knownVMsCount = 0; | |
176 static int knownVMsLimit = 0; | |
177 | |
178 static void GrowKnownVMs(); | |
179 static int KnownVMIndex(const char* name); | |
180 static void FreeKnownVMs(); | |
181 | |
182 jboolean ServerClassMachine(); | |
183 | |
184 /* flag which if set suppresses error messages from the launcher */ | |
185 static int noExitErrorMessage = 0; | |
186 | |
187 /* | |
188 * Entry point. | |
189 */ | |
190 int | |
191 main(int argc, char ** argv) | |
192 { | |
193 JavaVM *vm = 0; | |
194 JNIEnv *env = 0; | |
195 char *jarfile = 0; | |
196 char *classname = 0; | |
197 char *s = 0; | |
198 char *main_class = NULL; | |
199 jstring mainClassName; | |
200 jclass mainClass; | |
201 jmethodID mainID; | |
202 jobjectArray mainArgs; | |
203 int ret; | |
204 InvocationFunctions ifn; | |
205 jlong start, end; | |
206 char jrepath[MAXPATHLEN], jvmpath[MAXPATHLEN]; | |
207 char ** original_argv = argv; | |
208 | |
209 /* | |
210 * Error message to print or display; by default the message will | |
211 * only be displayed in a window. | |
212 */ | |
213 char * message = "Fatal exception occurred. Program will exit."; | |
214 jboolean messageDest = JNI_FALSE; | |
215 | |
216 if (getenv("_JAVA_LAUNCHER_DEBUG") != 0) { | |
217 _launcher_debug = JNI_TRUE; | |
218 printf("----_JAVA_LAUNCHER_DEBUG----\n"); | |
219 } | |
220 | |
221 #ifndef GAMMA | |
222 /* | |
223 * Make sure the specified version of the JRE is running. | |
224 * | |
225 * There are three things to note about the SelectVersion() routine: | |
226 * 1) If the version running isn't correct, this routine doesn't | |
227 * return (either the correct version has been exec'd or an error | |
228 * was issued). | |
229 * 2) Argc and Argv in this scope are *not* altered by this routine. | |
230 * It is the responsibility of subsequent code to ignore the | |
231 * arguments handled by this routine. | |
232 * 3) As a side-effect, the variable "main_class" is guaranteed to | |
233 * be set (if it should ever be set). This isn't exactly the | |
234 * poster child for structured programming, but it is a small | |
235 * price to pay for not processing a jar file operand twice. | |
236 * (Note: This side effect has been disabled. See comment on | |
237 * bugid 5030265 below.) | |
238 */ | |
239 SelectVersion(argc, argv, &main_class); | |
240 #endif /* ifndef GAMMA */ | |
241 | |
242 /* copy original argv */ | |
243 { | |
244 int i; | |
245 original_argv = (char**)MemAlloc(sizeof(char*)*(argc+1)); | |
246 for(i = 0; i < argc+1; i++) | |
247 original_argv[i] = argv[i]; | |
248 } | |
249 | |
250 CreateExecutionEnvironment(&argc, &argv, | |
251 jrepath, sizeof(jrepath), | |
252 jvmpath, sizeof(jvmpath), | |
253 original_argv); | |
254 ifn.CreateJavaVM = 0; | |
255 ifn.GetDefaultJavaVMInitArgs = 0; | |
256 | |
257 if (_launcher_debug) | |
258 start = CounterGet(); | |
259 if (!LoadJavaVM(jvmpath, &ifn)) { | |
260 exit(6); | |
261 } | |
262 if (_launcher_debug) { | |
263 end = CounterGet(); | |
264 printf("%ld micro seconds to LoadJavaVM\n", | |
265 (long)(jint)Counter2Micros(end-start)); | |
266 } | |
267 | |
268 #ifdef JAVA_ARGS /* javac, jar and friends. */ | |
269 progname = "java"; | |
270 #else /* java, oldjava, javaw and friends */ | |
271 #ifdef PROGNAME | |
272 progname = PROGNAME; | |
273 #else | |
274 progname = *argv; | |
275 if ((s = strrchr(progname, FILE_SEPARATOR)) != 0) { | |
276 progname = s + 1; | |
277 } | |
278 #endif /* PROGNAME */ | |
279 #endif /* JAVA_ARGS */ | |
280 ++argv; | |
281 --argc; | |
282 | |
283 #ifdef JAVA_ARGS | |
284 /* Preprocess wrapper arguments */ | |
285 TranslateDashJArgs(&argc, &argv); | |
286 if (!AddApplicationOptions()) { | |
287 exit(1); | |
288 } | |
289 #endif | |
290 | |
291 /* Set default CLASSPATH */ | |
292 if ((s = getenv("CLASSPATH")) == 0) { | |
293 s = "."; | |
294 } | |
295 #ifndef JAVA_ARGS | |
296 SetClassPath(s); | |
297 #endif | |
298 | |
299 /* | |
300 * Parse command line options; if the return value of | |
301 * ParseArguments is false, the program should exit. | |
302 */ | |
303 if (!ParseArguments(&argc, &argv, &jarfile, &classname, &ret)) { | |
304 exit(ret); | |
305 } | |
306 | |
307 /* Override class path if -jar flag was specified */ | |
308 if (jarfile != 0) { | |
309 SetClassPath(jarfile); | |
310 } | |
311 | |
312 /* set the -Dsun.java.command pseudo property */ | |
313 SetJavaCommandLineProp(classname, jarfile, argc, argv); | |
314 | |
315 #ifdef GAMMA | |
316 /* Set the -Dsun.java.launcher pseudo property */ | |
317 SetJavaLauncherProp(); | |
318 #endif | |
319 | |
320 /* | |
321 * Done with all command line processing and potential re-execs so | |
322 * clean up the environment. | |
323 */ | |
324 (void)UnsetEnv(ENV_ENTRY); | |
325 | |
326 /* Initialize the virtual machine */ | |
327 | |
328 if (_launcher_debug) | |
329 start = CounterGet(); | |
330 if (!InitializeJVM(&vm, &env, &ifn)) { | |
331 ReportErrorMessage("Could not create the Java virtual machine.", | |
332 JNI_TRUE); | |
333 exit(1); | |
334 } | |
335 | |
336 if (printVersion || showVersion) { | |
337 PrintJavaVersion(env); | |
338 if ((*env)->ExceptionOccurred(env)) { | |
339 ReportExceptionDescription(env); | |
340 goto leave; | |
341 } | |
342 if (printVersion) { | |
343 ret = 0; | |
344 message = NULL; | |
345 goto leave; | |
346 } | |
347 if (showVersion) { | |
348 fprintf(stderr, "\n"); | |
349 } | |
350 } | |
351 | |
352 /* If the user specified neither a class name nor a JAR file */ | |
353 if (jarfile == 0 && classname == 0) { | |
354 PrintUsage(); | |
355 message = NULL; | |
356 goto leave; | |
357 } | |
358 | |
359 #ifndef GAMMA | |
360 FreeKnownVMs(); /* after last possible PrintUsage() */ | |
361 #endif | |
362 | |
363 if (_launcher_debug) { | |
364 end = CounterGet(); | |
365 printf("%ld micro seconds to InitializeJVM\n", | |
366 (long)(jint)Counter2Micros(end-start)); | |
367 } | |
368 | |
369 /* At this stage, argc/argv have the applications' arguments */ | |
370 if (_launcher_debug) { | |
371 int i = 0; | |
372 printf("Main-Class is '%s'\n", classname ? classname : ""); | |
373 printf("Apps' argc is %d\n", argc); | |
374 for (; i < argc; i++) { | |
375 printf(" argv[%2d] = '%s'\n", i, argv[i]); | |
376 } | |
377 } | |
378 | |
379 ret = 1; | |
380 | |
381 /* | |
382 * Get the application's main class. | |
383 * | |
384 * See bugid 5030265. The Main-Class name has already been parsed | |
385 * from the manifest, but not parsed properly for UTF-8 support. | |
386 * Hence the code here ignores the value previously extracted and | |
387 * uses the pre-existing code to reextract the value. This is | |
388 * possibly an end of release cycle expedient. However, it has | |
389 * also been discovered that passing some character sets through | |
390 * the environment has "strange" behavior on some variants of | |
391 * Windows. Hence, maybe the manifest parsing code local to the | |
392 * launcher should never be enhanced. | |
393 * | |
394 * Hence, future work should either: | |
395 * 1) Correct the local parsing code and verify that the | |
396 * Main-Class attribute gets properly passed through | |
397 * all environments, | |
398 * 2) Remove the vestages of maintaining main_class through | |
399 * the environment (and remove these comments). | |
400 */ | |
401 if (jarfile != 0) { | |
402 mainClassName = GetMainClassName(env, jarfile); | |
403 if ((*env)->ExceptionOccurred(env)) { | |
404 ReportExceptionDescription(env); | |
405 goto leave; | |
406 } | |
407 if (mainClassName == NULL) { | |
408 const char * format = "Failed to load Main-Class manifest " | |
409 "attribute from\n%s"; | |
410 message = (char*)MemAlloc((strlen(format) + strlen(jarfile)) * | |
411 sizeof(char)); | |
412 sprintf(message, format, jarfile); | |
413 messageDest = JNI_TRUE; | |
414 goto leave; | |
415 } | |
416 classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0); | |
417 if (classname == NULL) { | |
418 ReportExceptionDescription(env); | |
419 goto leave; | |
420 } | |
421 mainClass = LoadClass(env, classname); | |
422 if(mainClass == NULL) { /* exception occured */ | |
423 ReportExceptionDescription(env); | |
424 message = "Could not find the main class. Program will exit."; | |
425 goto leave; | |
426 } | |
427 (*env)->ReleaseStringUTFChars(env, mainClassName, classname); | |
428 } else { | |
429 mainClassName = NewPlatformString(env, classname); | |
430 if (mainClassName == NULL) { | |
431 const char * format = "Failed to load Main Class: %s"; | |
432 message = (char *)MemAlloc((strlen(format) + strlen(classname)) * | |
433 sizeof(char) ); | |
434 sprintf(message, format, classname); | |
435 messageDest = JNI_TRUE; | |
436 goto leave; | |
437 } | |
438 classname = (char *)(*env)->GetStringUTFChars(env, mainClassName, 0); | |
439 if (classname == NULL) { | |
440 ReportExceptionDescription(env); | |
441 goto leave; | |
442 } | |
443 mainClass = LoadClass(env, classname); | |
444 if(mainClass == NULL) { /* exception occured */ | |
445 ReportExceptionDescription(env); | |
446 message = "Could not find the main class. Program will exit."; | |
447 goto leave; | |
448 } | |
449 (*env)->ReleaseStringUTFChars(env, mainClassName, classname); | |
450 } | |
451 | |
452 /* Get the application's main method */ | |
453 mainID = (*env)->GetStaticMethodID(env, mainClass, "main", | |
454 "([Ljava/lang/String;)V"); | |
455 if (mainID == NULL) { | |
456 if ((*env)->ExceptionOccurred(env)) { | |
457 ReportExceptionDescription(env); | |
458 } else { | |
459 message = "No main method found in specified class."; | |
460 messageDest = JNI_TRUE; | |
461 } | |
462 goto leave; | |
463 } | |
464 | |
465 { /* Make sure the main method is public */ | |
466 jint mods; | |
467 jmethodID mid; | |
468 jobject obj = (*env)->ToReflectedMethod(env, mainClass, | |
469 mainID, JNI_TRUE); | |
470 | |
471 if( obj == NULL) { /* exception occurred */ | |
472 ReportExceptionDescription(env); | |
473 goto leave; | |
474 } | |
475 | |
476 mid = | |
477 (*env)->GetMethodID(env, | |
478 (*env)->GetObjectClass(env, obj), | |
479 "getModifiers", "()I"); | |
480 if ((*env)->ExceptionOccurred(env)) { | |
481 ReportExceptionDescription(env); | |
482 goto leave; | |
483 } | |
484 | |
485 mods = (*env)->CallIntMethod(env, obj, mid); | |
486 if ((mods & 1) == 0) { /* if (!Modifier.isPublic(mods)) ... */ | |
487 message = "Main method not public."; | |
488 messageDest = JNI_TRUE; | |
489 goto leave; | |
490 } | |
491 } | |
492 | |
493 /* Build argument array */ | |
494 mainArgs = NewPlatformStringArray(env, argv, argc); | |
495 if (mainArgs == NULL) { | |
496 ReportExceptionDescription(env); | |
497 goto leave; | |
498 } | |
499 | |
500 /* Invoke main method. */ | |
501 (*env)->CallStaticVoidMethod(env, mainClass, mainID, mainArgs); | |
502 | |
503 /* | |
504 * The launcher's exit code (in the absence of calls to | |
505 * System.exit) will be non-zero if main threw an exception. | |
506 */ | |
507 ret = (*env)->ExceptionOccurred(env) == NULL ? 0 : 1; | |
508 | |
509 /* | |
510 * Detach the main thread so that it appears to have ended when | |
511 * the application's main method exits. This will invoke the | |
512 * uncaught exception handler machinery if main threw an | |
513 * exception. An uncaught exception handler cannot change the | |
514 * launcher's return code except by calling System.exit. | |
515 */ | |
516 if ((*vm)->DetachCurrentThread(vm) != 0) { | |
517 message = "Could not detach main thread."; | |
518 messageDest = JNI_TRUE; | |
519 ret = 1; | |
520 goto leave; | |
521 } | |
522 | |
523 message = NULL; | |
524 | |
525 leave: | |
526 /* | |
527 * Wait for all non-daemon threads to end, then destroy the VM. | |
528 * This will actually create a trivial new Java waiter thread | |
529 * named "DestroyJavaVM", but this will be seen as a different | |
530 * thread from the one that executed main, even though they are | |
531 * the same C thread. This allows mainThread.join() and | |
532 * mainThread.isAlive() to work as expected. | |
533 */ | |
534 (*vm)->DestroyJavaVM(vm); | |
535 | |
536 if(message != NULL && !noExitErrorMessage) | |
537 ReportErrorMessage(message, messageDest); | |
538 return ret; | |
539 } | |
540 | |
541 | |
542 #ifndef GAMMA | |
543 /* | |
544 * Checks the command line options to find which JVM type was | |
545 * specified. If no command line option was given for the JVM type, | |
546 * the default type is used. The environment variable | |
547 * JDK_ALTERNATE_VM and the command line option -XXaltjvm= are also | |
548 * checked as ways of specifying which JVM type to invoke. | |
549 */ | |
550 char * | |
551 CheckJvmType(int *pargc, char ***argv, jboolean speculative) { | |
552 int i, argi; | |
553 int argc; | |
554 char **newArgv; | |
555 int newArgvIdx = 0; | |
556 int isVMType; | |
557 int jvmidx = -1; | |
558 char *jvmtype = getenv("JDK_ALTERNATE_VM"); | |
559 | |
560 argc = *pargc; | |
561 | |
562 /* To make things simpler we always copy the argv array */ | |
563 newArgv = MemAlloc((argc + 1) * sizeof(char *)); | |
564 | |
565 /* The program name is always present */ | |
566 newArgv[newArgvIdx++] = (*argv)[0]; | |
567 | |
568 for (argi = 1; argi < argc; argi++) { | |
569 char *arg = (*argv)[argi]; | |
570 isVMType = 0; | |
571 | |
572 #ifdef JAVA_ARGS | |
573 if (arg[0] != '-') { | |
574 newArgv[newArgvIdx++] = arg; | |
575 continue; | |
576 } | |
577 #else | |
578 if (strcmp(arg, "-classpath") == 0 || | |
579 strcmp(arg, "-cp") == 0) { | |
580 newArgv[newArgvIdx++] = arg; | |
581 argi++; | |
582 if (argi < argc) { | |
583 newArgv[newArgvIdx++] = (*argv)[argi]; | |
584 } | |
585 continue; | |
586 } | |
587 if (arg[0] != '-') break; | |
588 #endif | |
589 | |
590 /* Did the user pass an explicit VM type? */ | |
591 i = KnownVMIndex(arg); | |
592 if (i >= 0) { | |
593 jvmtype = knownVMs[jvmidx = i].name + 1; /* skip the - */ | |
594 isVMType = 1; | |
595 *pargc = *pargc - 1; | |
596 } | |
597 | |
598 /* Did the user specify an "alternate" VM? */ | |
599 else if (strncmp(arg, "-XXaltjvm=", 10) == 0 || strncmp(arg, "-J-XXaltjvm=", 12) == 0) { | |
600 isVMType = 1; | |
601 jvmtype = arg+((arg[1]=='X')? 10 : 12); | |
602 jvmidx = -1; | |
603 } | |
604 | |
605 if (!isVMType) { | |
606 newArgv[newArgvIdx++] = arg; | |
607 } | |
608 } | |
609 | |
610 /* | |
611 * Finish copying the arguments if we aborted the above loop. | |
612 * NOTE that if we aborted via "break" then we did NOT copy the | |
613 * last argument above, and in addition argi will be less than | |
614 * argc. | |
615 */ | |
616 while (argi < argc) { | |
617 newArgv[newArgvIdx++] = (*argv)[argi]; | |
618 argi++; | |
619 } | |
620 | |
621 /* argv is null-terminated */ | |
622 newArgv[newArgvIdx] = 0; | |
623 | |
624 /* Copy back argv */ | |
625 *argv = newArgv; | |
626 *pargc = newArgvIdx; | |
627 | |
628 /* use the default VM type if not specified (no alias processing) */ | |
629 if (jvmtype == NULL) { | |
630 char* result = knownVMs[0].name+1; | |
631 /* Use a different VM type if we are on a server class machine? */ | |
632 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && | |
633 (ServerClassMachine() == JNI_TRUE)) { | |
634 result = knownVMs[0].server_class+1; | |
635 } | |
636 if (_launcher_debug) { | |
637 printf("Default VM: %s\n", result); | |
638 } | |
639 return result; | |
640 } | |
641 | |
642 /* if using an alternate VM, no alias processing */ | |
643 if (jvmidx < 0) | |
644 return jvmtype; | |
645 | |
646 /* Resolve aliases first */ | |
647 { | |
648 int loopCount = 0; | |
649 while (knownVMs[jvmidx].flag == VM_ALIASED_TO) { | |
650 int nextIdx = KnownVMIndex(knownVMs[jvmidx].alias); | |
651 | |
652 if (loopCount > knownVMsCount) { | |
653 if (!speculative) { | |
654 ReportErrorMessage("Error: Corrupt jvm.cfg file; cycle in alias list.", | |
655 JNI_TRUE); | |
656 exit(1); | |
657 } else { | |
658 return "ERROR"; | |
659 /* break; */ | |
660 } | |
661 } | |
662 | |
663 if (nextIdx < 0) { | |
664 if (!speculative) { | |
665 ReportErrorMessage2("Error: Unable to resolve VM alias %s", | |
666 knownVMs[jvmidx].alias, JNI_TRUE); | |
667 exit(1); | |
668 } else { | |
669 return "ERROR"; | |
670 } | |
671 } | |
672 jvmidx = nextIdx; | |
673 jvmtype = knownVMs[jvmidx].name+1; | |
674 loopCount++; | |
675 } | |
676 } | |
677 | |
678 switch (knownVMs[jvmidx].flag) { | |
679 case VM_WARN: | |
680 if (!speculative) { | |
681 fprintf(stderr, "Warning: %s VM not supported; %s VM will be used\n", | |
682 jvmtype, knownVMs[0].name + 1); | |
683 } | |
684 /* fall through */ | |
685 case VM_IGNORE: | |
686 jvmtype = knownVMs[jvmidx=0].name + 1; | |
687 /* fall through */ | |
688 case VM_KNOWN: | |
689 break; | |
690 case VM_ERROR: | |
691 if (!speculative) { | |
692 ReportErrorMessage2("Error: %s VM not supported", jvmtype, JNI_TRUE); | |
693 exit(1); | |
694 } else { | |
695 return "ERROR"; | |
696 } | |
697 } | |
698 | |
699 return jvmtype; | |
700 } | |
701 #endif /* ifndef GAMMA */ | |
702 | |
703 /* | |
704 * Adds a new VM option with the given given name and value. | |
705 */ | |
706 static void | |
707 AddOption(char *str, void *info) | |
708 { | |
709 /* | |
710 * Expand options array if needed to accommodate at least one more | |
711 * VM option. | |
712 */ | |
713 if (numOptions >= maxOptions) { | |
714 if (options == 0) { | |
715 maxOptions = 4; | |
716 options = MemAlloc(maxOptions * sizeof(JavaVMOption)); | |
717 } else { | |
718 JavaVMOption *tmp; | |
719 maxOptions *= 2; | |
720 tmp = MemAlloc(maxOptions * sizeof(JavaVMOption)); | |
721 memcpy(tmp, options, numOptions * sizeof(JavaVMOption)); | |
722 free(options); | |
723 options = tmp; | |
724 } | |
725 } | |
726 options[numOptions].optionString = str; | |
727 options[numOptions++].extraInfo = info; | |
728 } | |
729 | |
730 static void | |
731 SetClassPath(char *s) | |
732 { | |
733 char *def = MemAlloc(strlen(s) + 40); | |
734 sprintf(def, "-Djava.class.path=%s", s); | |
735 AddOption(def, NULL); | |
736 } | |
737 | |
738 #ifndef GAMMA | |
739 /* | |
740 * The SelectVersion() routine ensures that an appropriate version of | |
741 * the JRE is running. The specification for the appropriate version | |
742 * is obtained from either the manifest of a jar file (preferred) or | |
743 * from command line options. | |
744 */ | |
745 static void | |
746 SelectVersion(int argc, char **argv, char **main_class) | |
747 { | |
748 char *arg; | |
749 char **new_argv; | |
750 char **new_argp; | |
751 char *operand; | |
752 char *version = NULL; | |
753 char *jre = NULL; | |
754 int jarflag = 0; | |
755 int restrict_search = -1; /* -1 implies not known */ | |
756 manifest_info info; | |
757 char env_entry[MAXNAMELEN + 24] = ENV_ENTRY "="; | |
758 char *env_in; | |
759 int res; | |
760 | |
761 /* | |
762 * If the version has already been selected, set *main_class | |
763 * with the value passed through the environment (if any) and | |
764 * simply return. | |
765 */ | |
766 if ((env_in = getenv(ENV_ENTRY)) != NULL) { | |
767 if (*env_in != '\0') | |
768 *main_class = strdup(env_in); | |
769 return; | |
770 } | |
771 | |
772 /* | |
773 * Scan through the arguments for options relevant to multiple JRE | |
774 * support. For reference, the command line syntax is defined as: | |
775 * | |
776 * SYNOPSIS | |
777 * java [options] class [argument...] | |
778 * | |
779 * java [options] -jar file.jar [argument...] | |
780 * | |
781 * As the scan is performed, make a copy of the argument list with | |
782 * the version specification options (new to 1.5) removed, so that | |
783 * a version less than 1.5 can be exec'd. | |
784 */ | |
785 new_argv = MemAlloc((argc + 1) * sizeof(char*)); | |
786 new_argv[0] = argv[0]; | |
787 new_argp = &new_argv[1]; | |
788 argc--; | |
789 argv++; | |
790 while ((arg = *argv) != 0 && *arg == '-') { | |
791 if (strncmp(arg, "-version:", 9) == 0) { | |
792 version = arg + 9; | |
793 } else if (strcmp(arg, "-jre-restrict-search") == 0) { | |
794 restrict_search = 1; | |
795 } else if (strcmp(arg, "-no-jre-restrict-search") == 0) { | |
796 restrict_search = 0; | |
797 } else { | |
798 if (strcmp(arg, "-jar") == 0) | |
799 jarflag = 1; | |
800 /* deal with "unfortunate" classpath syntax */ | |
801 if ((strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) && | |
802 (argc >= 2)) { | |
803 *new_argp++ = arg; | |
804 argc--; | |
805 argv++; | |
806 arg = *argv; | |
807 } | |
808 *new_argp++ = arg; | |
809 } | |
810 argc--; | |
811 argv++; | |
812 } | |
813 if (argc <= 0) { /* No operand? Possibly legit with -[full]version */ | |
814 operand = NULL; | |
815 } else { | |
816 argc--; | |
817 *new_argp++ = operand = *argv++; | |
818 } | |
819 while (argc-- > 0) /* Copy over [argument...] */ | |
820 *new_argp++ = *argv++; | |
821 *new_argp = NULL; | |
822 | |
823 /* | |
824 * If there is a jar file, read the manifest. If the jarfile can't be | |
825 * read, the manifest can't be read from the jar file, or the manifest | |
826 * is corrupt, issue the appropriate error messages and exit. | |
827 * | |
828 * Even if there isn't a jar file, construct a manifest_info structure | |
829 * containing the command line information. It's a convenient way to carry | |
830 * this data around. | |
831 */ | |
832 if (jarflag && operand) { | |
833 if ((res = parse_manifest(operand, &info)) != 0) { | |
834 if (res == -1) | |
835 ReportErrorMessage2("Unable to access jarfile %s", | |
836 operand, JNI_TRUE); | |
837 else | |
838 ReportErrorMessage2("Invalid or corrupt jarfile %s", | |
839 operand, JNI_TRUE); | |
840 exit(1); | |
841 } | |
842 } else { | |
843 info.manifest_version = NULL; | |
844 info.main_class = NULL; | |
845 info.jre_version = NULL; | |
846 info.jre_restrict_search = 0; | |
847 } | |
848 | |
849 /* | |
850 * The JRE-Version and JRE-Restrict-Search values (if any) from the | |
851 * manifest are overwritten by any specified on the command line. | |
852 */ | |
853 if (version != NULL) | |
854 info.jre_version = version; | |
855 if (restrict_search != -1) | |
856 info.jre_restrict_search = restrict_search; | |
857 | |
858 /* | |
859 * "Valid" returns (other than unrecoverable errors) follow. Set | |
860 * main_class as a side-effect of this routine. | |
861 */ | |
862 if (info.main_class != NULL) | |
863 *main_class = strdup(info.main_class); | |
864 | |
865 /* | |
866 * If no version selection information is found either on the command | |
867 * line or in the manifest, simply return. | |
868 */ | |
869 if (info.jre_version == NULL) { | |
870 free_manifest(); | |
871 free(new_argv); | |
872 return; | |
873 } | |
874 | |
875 /* | |
876 * Check for correct syntax of the version specification (JSR 56). | |
877 */ | |
878 if (!valid_version_string(info.jre_version)) { | |
879 ReportErrorMessage2("Syntax error in version specification \"%s\"", | |
880 info.jre_version, JNI_TRUE); | |
881 exit(1); | |
882 } | |
883 | |
884 /* | |
885 * Find the appropriate JVM on the system. Just to be as forgiving as | |
886 * possible, if the standard algorithms don't locate an appropriate | |
887 * jre, check to see if the one running will satisfy the requirements. | |
888 * This can happen on systems which haven't been set-up for multiple | |
889 * JRE support. | |
890 */ | |
891 jre = LocateJRE(&info); | |
892 if (_launcher_debug) | |
893 printf("JRE-Version = %s, JRE-Restrict-Search = %s Selected = %s\n", | |
894 (info.jre_version?info.jre_version:"null"), | |
895 (info.jre_restrict_search?"true":"false"), (jre?jre:"null")); | |
896 if (jre == NULL) { | |
897 if (acceptable_release(FULL_VERSION, info.jre_version)) { | |
898 free_manifest(); | |
899 free(new_argv); | |
900 return; | |
901 } else { | |
902 ReportErrorMessage2( | |
903 "Unable to locate JRE meeting specification \"%s\"", | |
904 info.jre_version, JNI_TRUE); | |
905 exit(1); | |
906 } | |
907 } | |
908 | |
909 /* | |
910 * If I'm not the chosen one, exec the chosen one. Returning from | |
911 * ExecJRE indicates that I am indeed the chosen one. | |
912 * | |
913 * The private environment variable _JAVA_VERSION_SET is used to | |
914 * prevent the chosen one from re-reading the manifest file and | |
915 * using the values found within to override the (potential) command | |
916 * line flags stripped from argv (because the target may not | |
917 * understand them). Passing the MainClass value is an optimization | |
918 * to avoid locating, expanding and parsing the manifest extra | |
919 * times. | |
920 */ | |
921 if (info.main_class != NULL) | |
922 (void)strcat(env_entry, info.main_class); | |
923 (void)putenv(env_entry); | |
924 ExecJRE(jre, new_argv); | |
925 free_manifest(); | |
926 free(new_argv); | |
927 return; | |
928 } | |
929 #endif /* ifndef GAMMA */ | |
930 | |
931 /* | |
932 * Parses command line arguments. Returns JNI_FALSE if launcher | |
933 * should exit without starting vm (e.g. certain version and usage | |
934 * options); returns JNI_TRUE if vm needs to be started to process | |
935 * given options. *pret (the launcher process return value) is set to | |
936 * 0 for a normal exit. | |
937 */ | |
938 static jboolean | |
939 ParseArguments(int *pargc, char ***pargv, char **pjarfile, | |
940 char **pclassname, int *pret) | |
941 { | |
942 int argc = *pargc; | |
943 char **argv = *pargv; | |
944 jboolean jarflag = JNI_FALSE; | |
945 char *arg; | |
946 | |
947 *pret = 1; | |
948 while ((arg = *argv) != 0 && *arg == '-') { | |
949 argv++; --argc; | |
950 if (strcmp(arg, "-classpath") == 0 || strcmp(arg, "-cp") == 0) { | |
951 if (argc < 1) { | |
952 ReportErrorMessage2("%s requires class path specification", | |
953 arg, JNI_TRUE); | |
954 PrintUsage(); | |
955 return JNI_FALSE; | |
956 } | |
957 SetClassPath(*argv); | |
958 argv++; --argc; | |
959 } else if (strcmp(arg, "-jar") == 0) { | |
960 jarflag = JNI_TRUE; | |
961 } else if (strcmp(arg, "-help") == 0 || | |
962 strcmp(arg, "-h") == 0 || | |
963 strcmp(arg, "-?") == 0) { | |
964 PrintUsage(); | |
965 *pret = 0; | |
966 return JNI_FALSE; | |
967 } else if (strcmp(arg, "-version") == 0) { | |
968 printVersion = JNI_TRUE; | |
969 return JNI_TRUE; | |
970 } else if (strcmp(arg, "-showversion") == 0) { | |
971 showVersion = JNI_TRUE; | |
972 } else if (strcmp(arg, "-X") == 0) { | |
973 *pret = PrintXUsage(); | |
974 return JNI_FALSE; | |
975 /* | |
976 * The following case provide backward compatibility with old-style | |
977 * command line options. | |
978 */ | |
979 } else if (strcmp(arg, "-fullversion") == 0) { | |
980 fprintf(stderr, "%s full version \"%s\"\n", progname, | |
981 FULL_VERSION); | |
982 *pret = 0; | |
983 return JNI_FALSE; | |
984 } else if (strcmp(arg, "-verbosegc") == 0) { | |
985 AddOption("-verbose:gc", NULL); | |
986 } else if (strcmp(arg, "-t") == 0) { | |
987 AddOption("-Xt", NULL); | |
988 } else if (strcmp(arg, "-tm") == 0) { | |
989 AddOption("-Xtm", NULL); | |
990 } else if (strcmp(arg, "-debug") == 0) { | |
991 AddOption("-Xdebug", NULL); | |
992 } else if (strcmp(arg, "-noclassgc") == 0) { | |
993 AddOption("-Xnoclassgc", NULL); | |
994 } else if (strcmp(arg, "-Xfuture") == 0) { | |
995 AddOption("-Xverify:all", NULL); | |
996 } else if (strcmp(arg, "-verify") == 0) { | |
997 AddOption("-Xverify:all", NULL); | |
998 } else if (strcmp(arg, "-verifyremote") == 0) { | |
999 AddOption("-Xverify:remote", NULL); | |
1000 } else if (strcmp(arg, "-noverify") == 0) { | |
1001 AddOption("-Xverify:none", NULL); | |
1002 } else if (strcmp(arg, "-XXsuppressExitMessage") == 0) { | |
1003 noExitErrorMessage = 1; | |
1004 } else if (strncmp(arg, "-prof", 5) == 0) { | |
1005 char *p = arg + 5; | |
1006 char *tmp = MemAlloc(strlen(arg) + 50); | |
1007 if (*p) { | |
1008 sprintf(tmp, "-Xrunhprof:cpu=old,file=%s", p + 1); | |
1009 } else { | |
1010 sprintf(tmp, "-Xrunhprof:cpu=old,file=java.prof"); | |
1011 } | |
1012 AddOption(tmp, NULL); | |
1013 } else if (strncmp(arg, "-ss", 3) == 0 || | |
1014 strncmp(arg, "-oss", 4) == 0 || | |
1015 strncmp(arg, "-ms", 3) == 0 || | |
1016 strncmp(arg, "-mx", 3) == 0) { | |
1017 char *tmp = MemAlloc(strlen(arg) + 6); | |
1018 sprintf(tmp, "-X%s", arg + 1); /* skip '-' */ | |
1019 AddOption(tmp, NULL); | |
1020 } else if (strcmp(arg, "-checksource") == 0 || | |
1021 strcmp(arg, "-cs") == 0 || | |
1022 strcmp(arg, "-noasyncgc") == 0) { | |
1023 /* No longer supported */ | |
1024 fprintf(stderr, | |
1025 "Warning: %s option is no longer supported.\n", | |
1026 arg); | |
1027 } else if (strncmp(arg, "-version:", 9) == 0 || | |
1028 strcmp(arg, "-no-jre-restrict-search") == 0 || | |
1029 strcmp(arg, "-jre-restrict-search") == 0) { | |
1030 ; /* Ignore machine independent options already handled */ | |
1031 } else if (RemovableMachineDependentOption(arg) ) { | |
1032 ; /* Do not pass option to vm. */ | |
1033 } | |
1034 else { | |
1035 AddOption(arg, NULL); | |
1036 } | |
1037 } | |
1038 | |
1039 if (--argc >= 0) { | |
1040 if (jarflag) { | |
1041 *pjarfile = *argv++; | |
1042 *pclassname = 0; | |
1043 } else { | |
1044 *pjarfile = 0; | |
1045 *pclassname = *argv++; | |
1046 } | |
1047 *pargc = argc; | |
1048 *pargv = argv; | |
1049 } | |
1050 | |
1051 return JNI_TRUE; | |
1052 } | |
1053 | |
1054 /* | |
1055 * Initializes the Java Virtual Machine. Also frees options array when | |
1056 * finished. | |
1057 */ | |
1058 static jboolean | |
1059 InitializeJVM(JavaVM **pvm, JNIEnv **penv, InvocationFunctions *ifn) | |
1060 { | |
1061 JavaVMInitArgs args; | |
1062 jint r; | |
1063 | |
1064 memset(&args, 0, sizeof(args)); | |
1065 args.version = JNI_VERSION_1_2; | |
1066 args.nOptions = numOptions; | |
1067 args.options = options; | |
1068 args.ignoreUnrecognized = JNI_FALSE; | |
1069 | |
1070 if (_launcher_debug) { | |
1071 int i = 0; | |
1072 printf("JavaVM args:\n "); | |
1073 printf("version 0x%08lx, ", (long)args.version); | |
1074 printf("ignoreUnrecognized is %s, ", | |
1075 args.ignoreUnrecognized ? "JNI_TRUE" : "JNI_FALSE"); | |
1076 printf("nOptions is %ld\n", (long)args.nOptions); | |
1077 for (i = 0; i < numOptions; i++) | |
1078 printf(" option[%2d] = '%s'\n", | |
1079 i, args.options[i].optionString); | |
1080 } | |
1081 | |
1082 r = ifn->CreateJavaVM(pvm, (void **)penv, &args); | |
1083 free(options); | |
1084 return r == JNI_OK; | |
1085 } | |
1086 | |
1087 | |
1088 #define NULL_CHECK0(e) if ((e) == 0) return 0 | |
1089 #define NULL_CHECK(e) if ((e) == 0) return | |
1090 | |
1091 /* | |
1092 * Returns a pointer to a block of at least 'size' bytes of memory. | |
1093 * Prints error message and exits if the memory could not be allocated. | |
1094 */ | |
1095 void * | |
1096 MemAlloc(size_t size) | |
1097 { | |
1098 void *p = malloc(size); | |
1099 if (p == 0) { | |
1100 perror("malloc"); | |
1101 exit(1); | |
1102 } | |
1103 return p; | |
1104 } | |
1105 | |
1106 static jstring platformEncoding = NULL; | |
1107 static jstring getPlatformEncoding(JNIEnv *env) { | |
1108 if (platformEncoding == NULL) { | |
1109 jstring propname = (*env)->NewStringUTF(env, "sun.jnu.encoding"); | |
1110 if (propname) { | |
1111 jclass cls; | |
1112 jmethodID mid; | |
1113 NULL_CHECK0 (cls = (*env)->FindClass(env, "java/lang/System")); | |
1114 NULL_CHECK0 (mid = (*env)->GetStaticMethodID( | |
1115 env, cls, | |
1116 "getProperty", | |
1117 "(Ljava/lang/String;)Ljava/lang/String;")); | |
1118 platformEncoding = (*env)->CallStaticObjectMethod ( | |
1119 env, cls, mid, propname); | |
1120 } | |
1121 } | |
1122 return platformEncoding; | |
1123 } | |
1124 | |
1125 static jboolean isEncodingSupported(JNIEnv *env, jstring enc) { | |
1126 jclass cls; | |
1127 jmethodID mid; | |
1128 NULL_CHECK0 (cls = (*env)->FindClass(env, "java/nio/charset/Charset")); | |
1129 NULL_CHECK0 (mid = (*env)->GetStaticMethodID( | |
1130 env, cls, | |
1131 "isSupported", | |
1132 "(Ljava/lang/String;)Z")); | |
1133 return (jboolean)(*env)->CallStaticObjectMethod (env, cls, mid, enc); | |
1134 } | |
1135 | |
1136 /* | |
1137 * Returns a new Java string object for the specified platform string. | |
1138 */ | |
1139 static jstring | |
1140 NewPlatformString(JNIEnv *env, char *s) | |
1141 { | |
1142 int len = (int)strlen(s); | |
1143 jclass cls; | |
1144 jmethodID mid; | |
1145 jbyteArray ary; | |
1146 jstring enc; | |
1147 | |
1148 if (s == NULL) | |
1149 return 0; | |
1150 enc = getPlatformEncoding(env); | |
1151 | |
1152 ary = (*env)->NewByteArray(env, len); | |
1153 if (ary != 0) { | |
1154 jstring str = 0; | |
1155 (*env)->SetByteArrayRegion(env, ary, 0, len, (jbyte *)s); | |
1156 if (!(*env)->ExceptionOccurred(env)) { | |
1157 #ifdef GAMMA | |
1158 /* We support running JVM with older JDK, so here we have to deal */ | |
1159 /* with the case that sun.jnu.encoding is undefined (enc == NULL) */ | |
1160 if (enc != NULL && isEncodingSupported(env, enc) == JNI_TRUE) { | |
1161 #else | |
1162 if (isEncodingSupported(env, enc) == JNI_TRUE) { | |
1163 #endif | |
1164 NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String")); | |
1165 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", | |
1166 "([BLjava/lang/String;)V")); | |
1167 str = (*env)->NewObject(env, cls, mid, ary, enc); | |
1168 } else { | |
1169 /*If the encoding specified in sun.jnu.encoding is not | |
1170 endorsed by "Charset.isSupported" we have to fall back | |
1171 to use String(byte[]) explicitly here without specifying | |
1172 the encoding name, in which the StringCoding class will | |
1173 pickup the iso-8859-1 as the fallback converter for us. | |
1174 */ | |
1175 NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String")); | |
1176 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", | |
1177 "([B)V")); | |
1178 str = (*env)->NewObject(env, cls, mid, ary); | |
1179 } | |
1180 (*env)->DeleteLocalRef(env, ary); | |
1181 return str; | |
1182 } | |
1183 } | |
1184 return 0; | |
1185 } | |
1186 | |
1187 /* | |
1188 * Returns a new array of Java string objects for the specified | |
1189 * array of platform strings. | |
1190 */ | |
1191 static jobjectArray | |
1192 NewPlatformStringArray(JNIEnv *env, char **strv, int strc) | |
1193 { | |
1194 jarray cls; | |
1195 jarray ary; | |
1196 int i; | |
1197 | |
1198 NULL_CHECK0(cls = (*env)->FindClass(env, "java/lang/String")); | |
1199 NULL_CHECK0(ary = (*env)->NewObjectArray(env, strc, cls, 0)); | |
1200 for (i = 0; i < strc; i++) { | |
1201 jstring str = NewPlatformString(env, *strv++); | |
1202 NULL_CHECK0(str); | |
1203 (*env)->SetObjectArrayElement(env, ary, i, str); | |
1204 (*env)->DeleteLocalRef(env, str); | |
1205 } | |
1206 return ary; | |
1207 } | |
1208 | |
1209 /* | |
1210 * Loads a class, convert the '.' to '/'. | |
1211 */ | |
1212 static jclass | |
1213 LoadClass(JNIEnv *env, char *name) | |
1214 { | |
1215 char *buf = MemAlloc(strlen(name) + 1); | |
1216 char *s = buf, *t = name, c; | |
1217 jclass cls; | |
1218 jlong start, end; | |
1219 | |
1220 if (_launcher_debug) | |
1221 start = CounterGet(); | |
1222 | |
1223 do { | |
1224 c = *t++; | |
1225 *s++ = (c == '.') ? '/' : c; | |
1226 } while (c != '\0'); | |
1227 cls = (*env)->FindClass(env, buf); | |
1228 free(buf); | |
1229 | |
1230 if (_launcher_debug) { | |
1231 end = CounterGet(); | |
1232 printf("%ld micro seconds to load main class\n", | |
1233 (long)(jint)Counter2Micros(end-start)); | |
1234 printf("----_JAVA_LAUNCHER_DEBUG----\n"); | |
1235 } | |
1236 | |
1237 return cls; | |
1238 } | |
1239 | |
1240 | |
1241 /* | |
1242 * Returns the main class name for the specified jar file. | |
1243 */ | |
1244 static jstring | |
1245 GetMainClassName(JNIEnv *env, char *jarname) | |
1246 { | |
1247 #define MAIN_CLASS "Main-Class" | |
1248 jclass cls; | |
1249 jmethodID mid; | |
1250 jobject jar, man, attr; | |
1251 jstring str, result = 0; | |
1252 | |
1253 NULL_CHECK0(cls = (*env)->FindClass(env, "java/util/jar/JarFile")); | |
1254 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "<init>", | |
1255 "(Ljava/lang/String;)V")); | |
1256 NULL_CHECK0(str = NewPlatformString(env, jarname)); | |
1257 NULL_CHECK0(jar = (*env)->NewObject(env, cls, mid, str)); | |
1258 NULL_CHECK0(mid = (*env)->GetMethodID(env, cls, "getManifest", | |
1259 "()Ljava/util/jar/Manifest;")); | |
1260 man = (*env)->CallObjectMethod(env, jar, mid); | |
1261 if (man != 0) { | |
1262 NULL_CHECK0(mid = (*env)->GetMethodID(env, | |
1263 (*env)->GetObjectClass(env, man), | |
1264 "getMainAttributes", | |
1265 "()Ljava/util/jar/Attributes;")); | |
1266 attr = (*env)->CallObjectMethod(env, man, mid); | |
1267 if (attr != 0) { | |
1268 NULL_CHECK0(mid = (*env)->GetMethodID(env, | |
1269 (*env)->GetObjectClass(env, attr), | |
1270 "getValue", | |
1271 "(Ljava/lang/String;)Ljava/lang/String;")); | |
1272 NULL_CHECK0(str = NewPlatformString(env, MAIN_CLASS)); | |
1273 result = (*env)->CallObjectMethod(env, attr, mid, str); | |
1274 } | |
1275 } | |
1276 return result; | |
1277 } | |
1278 | |
1279 #ifdef JAVA_ARGS | |
1280 static char *java_args[] = JAVA_ARGS; | |
1281 static char *app_classpath[] = APP_CLASSPATH; | |
1282 | |
1283 /* | |
1284 * For tools convert 'javac -J-ms32m' to 'java -ms32m ...' | |
1285 */ | |
1286 static void | |
1287 TranslateDashJArgs(int *pargc, char ***pargv) | |
1288 { | |
1289 const int NUM_ARGS = (sizeof(java_args) / sizeof(char *)); | |
1290 int argc = *pargc; | |
1291 char **argv = *pargv; | |
1292 int nargc = argc + NUM_ARGS; | |
1293 char **nargv = MemAlloc((nargc + 1) * sizeof(char *)); | |
1294 int i; | |
1295 | |
1296 *pargc = nargc; | |
1297 *pargv = nargv; | |
1298 | |
1299 /* Copy the VM arguments (i.e. prefixed with -J) */ | |
1300 for (i = 0; i < NUM_ARGS; i++) { | |
1301 char *arg = java_args[i]; | |
1302 if (arg[0] == '-' && arg[1] == 'J') { | |
1303 *nargv++ = arg + 2; | |
1304 } | |
1305 } | |
1306 | |
1307 for (i = 0; i < argc; i++) { | |
1308 char *arg = argv[i]; | |
1309 if (arg[0] == '-' && arg[1] == 'J') { | |
1310 if (arg[2] == '\0') { | |
1311 ReportErrorMessage("Error: the -J option should not be " | |
1312 "followed by a space.", JNI_TRUE); | |
1313 exit(1); | |
1314 } | |
1315 *nargv++ = arg + 2; | |
1316 } | |
1317 } | |
1318 | |
1319 /* Copy the rest of the arguments */ | |
1320 for (i = 0; i < NUM_ARGS; i++) { | |
1321 char *arg = java_args[i]; | |
1322 if (arg[0] != '-' || arg[1] != 'J') { | |
1323 *nargv++ = arg; | |
1324 } | |
1325 } | |
1326 for (i = 0; i < argc; i++) { | |
1327 char *arg = argv[i]; | |
1328 if (arg[0] != '-' || arg[1] != 'J') { | |
1329 *nargv++ = arg; | |
1330 } | |
1331 } | |
1332 *nargv = 0; | |
1333 } | |
1334 | |
1335 /* | |
1336 * For our tools, we try to add 3 VM options: | |
1337 * -Denv.class.path=<envcp> | |
1338 * -Dapplication.home=<apphome> | |
1339 * -Djava.class.path=<appcp> | |
1340 * <envcp> is the user's setting of CLASSPATH -- for instance the user | |
1341 * tells javac where to find binary classes through this environment | |
1342 * variable. Notice that users will be able to compile against our | |
1343 * tools classes (sun.tools.javac.Main) only if they explicitly add | |
1344 * tools.jar to CLASSPATH. | |
1345 * <apphome> is the directory where the application is installed. | |
1346 * <appcp> is the classpath to where our apps' classfiles are. | |
1347 */ | |
1348 static jboolean | |
1349 AddApplicationOptions() | |
1350 { | |
1351 const int NUM_APP_CLASSPATH = (sizeof(app_classpath) / sizeof(char *)); | |
1352 char *s, *envcp, *appcp, *apphome; | |
1353 char home[MAXPATHLEN]; /* application home */ | |
1354 char separator[] = { PATH_SEPARATOR, '\0' }; | |
1355 int size, i; | |
1356 int strlenHome; | |
1357 | |
1358 s = getenv("CLASSPATH"); | |
1359 if (s) { | |
1360 /* 40 for -Denv.class.path= */ | |
1361 envcp = (char *)MemAlloc(strlen(s) + 40); | |
1362 sprintf(envcp, "-Denv.class.path=%s", s); | |
1363 AddOption(envcp, NULL); | |
1364 } | |
1365 | |
1366 if (!GetApplicationHome(home, sizeof(home))) { | |
1367 ReportErrorMessage("Can't determine application home", JNI_TRUE); | |
1368 return JNI_FALSE; | |
1369 } | |
1370 | |
1371 /* 40 for '-Dapplication.home=' */ | |
1372 apphome = (char *)MemAlloc(strlen(home) + 40); | |
1373 sprintf(apphome, "-Dapplication.home=%s", home); | |
1374 AddOption(apphome, NULL); | |
1375 | |
1376 /* How big is the application's classpath? */ | |
1377 size = 40; /* 40: "-Djava.class.path=" */ | |
1378 strlenHome = (int)strlen(home); | |
1379 for (i = 0; i < NUM_APP_CLASSPATH; i++) { | |
1380 size += strlenHome + (int)strlen(app_classpath[i]) + 1; /* 1: separator */ | |
1381 } | |
1382 appcp = (char *)MemAlloc(size + 1); | |
1383 strcpy(appcp, "-Djava.class.path="); | |
1384 for (i = 0; i < NUM_APP_CLASSPATH; i++) { | |
1385 strcat(appcp, home); /* c:\program files\myapp */ | |
1386 strcat(appcp, app_classpath[i]); /* \lib\myapp.jar */ | |
1387 strcat(appcp, separator); /* ; */ | |
1388 } | |
1389 appcp[strlen(appcp)-1] = '\0'; /* remove trailing path separator */ | |
1390 AddOption(appcp, NULL); | |
1391 return JNI_TRUE; | |
1392 } | |
1393 #endif | |
1394 | |
1395 /* | |
1396 * inject the -Dsun.java.command pseudo property into the args structure | |
1397 * this pseudo property is used in the HotSpot VM to expose the | |
1398 * Java class name and arguments to the main method to the VM. The | |
1399 * HotSpot VM uses this pseudo property to store the Java class name | |
1400 * (or jar file name) and the arguments to the class's main method | |
1401 * to the instrumentation memory region. The sun.java.command pseudo | |
1402 * property is not exported by HotSpot to the Java layer. | |
1403 */ | |
1404 void | |
1405 SetJavaCommandLineProp(char *classname, char *jarfile, | |
1406 int argc, char **argv) | |
1407 { | |
1408 | |
1409 int i = 0; | |
1410 size_t len = 0; | |
1411 char* javaCommand = NULL; | |
1412 char* dashDstr = "-Dsun.java.command="; | |
1413 | |
1414 if (classname == NULL && jarfile == NULL) { | |
1415 /* unexpected, one of these should be set. just return without | |
1416 * setting the property | |
1417 */ | |
1418 return; | |
1419 } | |
1420 | |
1421 /* if the class name is not set, then use the jarfile name */ | |
1422 if (classname == NULL) { | |
1423 classname = jarfile; | |
1424 } | |
1425 | |
1426 /* determine the amount of memory to allocate assuming | |
1427 * the individual components will be space separated | |
1428 */ | |
1429 len = strlen(classname); | |
1430 for (i = 0; i < argc; i++) { | |
1431 len += strlen(argv[i]) + 1; | |
1432 } | |
1433 | |
1434 /* allocate the memory */ | |
1435 javaCommand = (char*) MemAlloc(len + strlen(dashDstr) + 1); | |
1436 | |
1437 /* build the -D string */ | |
1438 *javaCommand = '\0'; | |
1439 strcat(javaCommand, dashDstr); | |
1440 strcat(javaCommand, classname); | |
1441 | |
1442 for (i = 0; i < argc; i++) { | |
1443 /* the components of the string are space separated. In | |
1444 * the case of embedded white space, the relationship of | |
1445 * the white space separated components to their true | |
1446 * positional arguments will be ambiguous. This issue may | |
1447 * be addressed in a future release. | |
1448 */ | |
1449 strcat(javaCommand, " "); | |
1450 strcat(javaCommand, argv[i]); | |
1451 } | |
1452 | |
1453 AddOption(javaCommand, NULL); | |
1454 } | |
1455 | |
1456 /* | |
1457 * JVM wants to know launcher type, so tell it. | |
1458 */ | |
1459 #ifdef GAMMA | |
1460 void SetJavaLauncherProp() { | |
1461 AddOption("-Dsun.java.launcher=" LAUNCHER_TYPE, NULL); | |
1462 } | |
1463 #endif | |
1464 | |
1465 /* | |
1466 * Prints the version information from the java.version and other properties. | |
1467 */ | |
1468 static void | |
1469 PrintJavaVersion(JNIEnv *env) | |
1470 { | |
1471 jclass ver; | |
1472 jmethodID print; | |
1473 | |
1474 NULL_CHECK(ver = (*env)->FindClass(env, "sun/misc/Version")); | |
1475 NULL_CHECK(print = (*env)->GetStaticMethodID(env, ver, "print", "()V")); | |
1476 | |
1477 (*env)->CallStaticVoidMethod(env, ver, print); | |
1478 } | |
1479 | |
1480 /* | |
1481 * Prints default usage message. | |
1482 */ | |
1483 static void | |
1484 PrintUsage(void) | |
1485 { | |
1486 int i; | |
1487 | |
1488 fprintf(stdout, | |
1489 "Usage: %s [-options] class [args...]\n" | |
1490 " (to execute a class)\n" | |
1491 " or %s [-options] -jar jarfile [args...]\n" | |
1492 " (to execute a jar file)\n" | |
1493 "\n" | |
1494 "where options include:\n", | |
1495 progname, | |
1496 progname); | |
1497 | |
1498 #ifndef GAMMA | |
1499 PrintMachineDependentOptions(); | |
1500 | |
1501 if ((knownVMs[0].flag == VM_KNOWN) || | |
1502 (knownVMs[0].flag == VM_IF_SERVER_CLASS)) { | |
1503 fprintf(stdout, " %s\t to select the \"%s\" VM\n", | |
1504 knownVMs[0].name, knownVMs[0].name+1); | |
1505 } | |
1506 for (i=1; i<knownVMsCount; i++) { | |
1507 if (knownVMs[i].flag == VM_KNOWN) | |
1508 fprintf(stdout, " %s\t to select the \"%s\" VM\n", | |
1509 knownVMs[i].name, knownVMs[i].name+1); | |
1510 } | |
1511 for (i=1; i<knownVMsCount; i++) { | |
1512 if (knownVMs[i].flag == VM_ALIASED_TO) | |
1513 fprintf(stdout, " %s\t is a synonym for " | |
1514 "the \"%s\" VM [deprecated]\n", | |
1515 knownVMs[i].name, knownVMs[i].alias+1); | |
1516 } | |
1517 | |
1518 /* The first known VM is the default */ | |
1519 { | |
1520 const char* defaultVM = knownVMs[0].name+1; | |
1521 const char* punctuation = "."; | |
1522 const char* reason = ""; | |
1523 if ((knownVMs[0].flag == VM_IF_SERVER_CLASS) && | |
1524 (ServerClassMachine() == JNI_TRUE)) { | |
1525 defaultVM = knownVMs[0].server_class+1; | |
1526 punctuation = ", "; | |
1527 reason = "because you are running on a server-class machine.\n"; | |
1528 } | |
1529 fprintf(stdout, " The default VM is %s%s\n", | |
1530 defaultVM, punctuation); | |
1531 fprintf(stdout, " %s\n", | |
1532 reason); | |
1533 } | |
1534 #endif /* ifndef GAMMA */ | |
1535 | |
1536 fprintf(stdout, | |
1537 " -cp <class search path of directories and zip/jar files>\n" | |
1538 " -classpath <class search path of directories and zip/jar files>\n" | |
1539 " A %c separated list of directories, JAR archives,\n" | |
1540 " and ZIP archives to search for class files.\n" | |
1541 " -D<name>=<value>\n" | |
1542 " set a system property\n" | |
1543 " -verbose[:class|gc|jni]\n" | |
1544 " enable verbose output\n" | |
1545 " -version print product version and exit\n" | |
1546 " -version:<value>\n" | |
1547 " require the specified version to run\n" | |
1548 " -showversion print product version and continue\n" | |
1549 " -jre-restrict-search | -jre-no-restrict-search\n" | |
1550 " include/exclude user private JREs in the version search\n" | |
1551 " -? -help print this help message\n" | |
1552 " -X print help on non-standard options\n" | |
1553 " -ea[:<packagename>...|:<classname>]\n" | |
1554 " -enableassertions[:<packagename>...|:<classname>]\n" | |
1555 " enable assertions\n" | |
1556 " -da[:<packagename>...|:<classname>]\n" | |
1557 " -disableassertions[:<packagename>...|:<classname>]\n" | |
1558 " disable assertions\n" | |
1559 " -esa | -enablesystemassertions\n" | |
1560 " enable system assertions\n" | |
1561 " -dsa | -disablesystemassertions\n" | |
1562 " disable system assertions\n" | |
1563 " -agentlib:<libname>[=<options>]\n" | |
1564 " load native agent library <libname>, e.g. -agentlib:hprof\n" | |
1565 " see also, -agentlib:jdwp=help and -agentlib:hprof=help\n" | |
1566 " -agentpath:<pathname>[=<options>]\n" | |
1567 " load native agent library by full pathname\n" | |
1568 " -javaagent:<jarpath>[=<options>]\n" | |
1569 " load Java programming language agent, see java.lang.instrument\n" | |
1570 | |
1571 ,PATH_SEPARATOR); | |
1572 } | |
1573 | |
1574 /* | |
1575 * Print usage message for -X options. | |
1576 */ | |
1577 static jint | |
1578 PrintXUsage(void) | |
1579 { | |
1580 char path[MAXPATHLEN]; | |
1581 char buf[128]; | |
1582 size_t n; | |
1583 FILE *fp; | |
1584 | |
1585 GetXUsagePath(path, sizeof(path)); | |
1586 fp = fopen(path, "r"); | |
1587 if (fp == 0) { | |
1588 fprintf(stderr, "Can't open %s\n", path); | |
1589 return 1; | |
1590 } | |
1591 while ((n = fread(buf, 1, sizeof(buf), fp)) != 0) { | |
1592 fwrite(buf, 1, n, stdout); | |
1593 } | |
1594 fclose(fp); | |
1595 return 0; | |
1596 } | |
1597 | |
1598 #ifndef GAMMA | |
1599 | |
1600 /* | |
1601 * Read the jvm.cfg file and fill the knownJVMs[] array. | |
1602 * | |
1603 * The functionality of the jvm.cfg file is subject to change without | |
1604 * notice and the mechanism will be removed in the future. | |
1605 * | |
1606 * The lexical structure of the jvm.cfg file is as follows: | |
1607 * | |
1608 * jvmcfg := { vmLine } | |
1609 * vmLine := knownLine | |
1610 * | aliasLine | |
1611 * | warnLine | |
1612 * | ignoreLine | |
1613 * | errorLine | |
1614 * | predicateLine | |
1615 * | commentLine | |
1616 * knownLine := flag "KNOWN" EOL | |
1617 * warnLine := flag "WARN" EOL | |
1618 * ignoreLine := flag "IGNORE" EOL | |
1619 * errorLine := flag "ERROR" EOL | |
1620 * aliasLine := flag "ALIASED_TO" flag EOL | |
1621 * predicateLine := flag "IF_SERVER_CLASS" flag EOL | |
1622 * commentLine := "#" text EOL | |
1623 * flag := "-" identifier | |
1624 * | |
1625 * The semantics are that when someone specifies a flag on the command line: | |
1626 * - if the flag appears on a knownLine, then the identifier is used as | |
1627 * the name of the directory holding the JVM library (the name of the JVM). | |
1628 * - if the flag appears as the first flag on an aliasLine, the identifier | |
1629 * of the second flag is used as the name of the JVM. | |
1630 * - if the flag appears on a warnLine, the identifier is used as the | |
1631 * name of the JVM, but a warning is generated. | |
1632 * - if the flag appears on an ignoreLine, the identifier is recognized as the | |
1633 * name of a JVM, but the identifier is ignored and the default vm used | |
1634 * - if the flag appears on an errorLine, an error is generated. | |
1635 * - if the flag appears as the first flag on a predicateLine, and | |
1636 * the machine on which you are running passes the predicate indicated, | |
1637 * then the identifier of the second flag is used as the name of the JVM, | |
1638 * otherwise the identifier of the first flag is used as the name of the JVM. | |
1639 * If no flag is given on the command line, the first vmLine of the jvm.cfg | |
1640 * file determines the name of the JVM. | |
1641 * PredicateLines are only interpreted on first vmLine of a jvm.cfg file, | |
1642 * since they only make sense if someone hasn't specified the name of the | |
1643 * JVM on the command line. | |
1644 * | |
1645 * The intent of the jvm.cfg file is to allow several JVM libraries to | |
1646 * be installed in different subdirectories of a single JRE installation, | |
1647 * for space-savings and convenience in testing. | |
1648 * The intent is explicitly not to provide a full aliasing or predicate | |
1649 * mechanism. | |
1650 */ | |
1651 jint | |
1652 ReadKnownVMs(const char *jrepath, char * arch, jboolean speculative) | |
1653 { | |
1654 FILE *jvmCfg; | |
1655 char jvmCfgName[MAXPATHLEN+20]; | |
1656 char line[MAXPATHLEN+20]; | |
1657 int cnt = 0; | |
1658 int lineno = 0; | |
1659 jlong start, end; | |
1660 int vmType; | |
1661 char *tmpPtr; | |
1662 char *altVMName; | |
1663 char *serverClassVMName; | |
1664 static char *whiteSpace = " \t"; | |
1665 if (_launcher_debug) { | |
1666 start = CounterGet(); | |
1667 } | |
1668 | |
1669 strcpy(jvmCfgName, jrepath); | |
1670 strcat(jvmCfgName, FILESEP "lib" FILESEP); | |
1671 strcat(jvmCfgName, arch); | |
1672 strcat(jvmCfgName, FILESEP "jvm.cfg"); | |
1673 | |
1674 jvmCfg = fopen(jvmCfgName, "r"); | |
1675 if (jvmCfg == NULL) { | |
1676 if (!speculative) { | |
1677 ReportErrorMessage2("Error: could not open `%s'", jvmCfgName, | |
1678 JNI_TRUE); | |
1679 exit(1); | |
1680 } else { | |
1681 return -1; | |
1682 } | |
1683 } | |
1684 while (fgets(line, sizeof(line), jvmCfg) != NULL) { | |
1685 vmType = VM_UNKNOWN; | |
1686 lineno++; | |
1687 if (line[0] == '#') | |
1688 continue; | |
1689 if (line[0] != '-') { | |
1690 fprintf(stderr, "Warning: no leading - on line %d of `%s'\n", | |
1691 lineno, jvmCfgName); | |
1692 } | |
1693 if (cnt >= knownVMsLimit) { | |
1694 GrowKnownVMs(cnt); | |
1695 } | |
1696 line[strlen(line)-1] = '\0'; /* remove trailing newline */ | |
1697 tmpPtr = line + strcspn(line, whiteSpace); | |
1698 if (*tmpPtr == 0) { | |
1699 fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n", | |
1700 lineno, jvmCfgName); | |
1701 } else { | |
1702 /* Null-terminate this string for strdup below */ | |
1703 *tmpPtr++ = 0; | |
1704 tmpPtr += strspn(tmpPtr, whiteSpace); | |
1705 if (*tmpPtr == 0) { | |
1706 fprintf(stderr, "Warning: missing VM type on line %d of `%s'\n", | |
1707 lineno, jvmCfgName); | |
1708 } else { | |
1709 if (!strncmp(tmpPtr, "KNOWN", strlen("KNOWN"))) { | |
1710 vmType = VM_KNOWN; | |
1711 } else if (!strncmp(tmpPtr, "ALIASED_TO", strlen("ALIASED_TO"))) { | |
1712 tmpPtr += strcspn(tmpPtr, whiteSpace); | |
1713 if (*tmpPtr != 0) { | |
1714 tmpPtr += strspn(tmpPtr, whiteSpace); | |
1715 } | |
1716 if (*tmpPtr == 0) { | |
1717 fprintf(stderr, "Warning: missing VM alias on line %d of `%s'\n", | |
1718 lineno, jvmCfgName); | |
1719 } else { | |
1720 /* Null terminate altVMName */ | |
1721 altVMName = tmpPtr; | |
1722 tmpPtr += strcspn(tmpPtr, whiteSpace); | |
1723 *tmpPtr = 0; | |
1724 vmType = VM_ALIASED_TO; | |
1725 } | |
1726 } else if (!strncmp(tmpPtr, "WARN", strlen("WARN"))) { | |
1727 vmType = VM_WARN; | |
1728 } else if (!strncmp(tmpPtr, "IGNORE", strlen("IGNORE"))) { | |
1729 vmType = VM_IGNORE; | |
1730 } else if (!strncmp(tmpPtr, "ERROR", strlen("ERROR"))) { | |
1731 vmType = VM_ERROR; | |
1732 } else if (!strncmp(tmpPtr, | |
1733 "IF_SERVER_CLASS", | |
1734 strlen("IF_SERVER_CLASS"))) { | |
1735 tmpPtr += strcspn(tmpPtr, whiteSpace); | |
1736 if (*tmpPtr != 0) { | |
1737 tmpPtr += strspn(tmpPtr, whiteSpace); | |
1738 } | |
1739 if (*tmpPtr == 0) { | |
1740 fprintf(stderr, "Warning: missing server class VM on line %d of `%s'\n", | |
1741 lineno, jvmCfgName); | |
1742 } else { | |
1743 /* Null terminate server class VM name */ | |
1744 serverClassVMName = tmpPtr; | |
1745 tmpPtr += strcspn(tmpPtr, whiteSpace); | |
1746 *tmpPtr = 0; | |
1747 vmType = VM_IF_SERVER_CLASS; | |
1748 } | |
1749 } else { | |
1750 fprintf(stderr, "Warning: unknown VM type on line %d of `%s'\n", | |
1751 lineno, &jvmCfgName[0]); | |
1752 vmType = VM_KNOWN; | |
1753 } | |
1754 } | |
1755 } | |
1756 | |
1757 if (_launcher_debug) | |
1758 printf("jvm.cfg[%d] = ->%s<-\n", cnt, line); | |
1759 if (vmType != VM_UNKNOWN) { | |
1760 knownVMs[cnt].name = strdup(line); | |
1761 knownVMs[cnt].flag = vmType; | |
1762 switch (vmType) { | |
1763 default: | |
1764 break; | |
1765 case VM_ALIASED_TO: | |
1766 knownVMs[cnt].alias = strdup(altVMName); | |
1767 if (_launcher_debug) { | |
1768 printf(" name: %s vmType: %s alias: %s\n", | |
1769 knownVMs[cnt].name, "VM_ALIASED_TO", knownVMs[cnt].alias); | |
1770 } | |
1771 break; | |
1772 case VM_IF_SERVER_CLASS: | |
1773 knownVMs[cnt].server_class = strdup(serverClassVMName); | |
1774 if (_launcher_debug) { | |
1775 printf(" name: %s vmType: %s server_class: %s\n", | |
1776 knownVMs[cnt].name, "VM_IF_SERVER_CLASS", knownVMs[cnt].server_class); | |
1777 } | |
1778 break; | |
1779 } | |
1780 cnt++; | |
1781 } | |
1782 } | |
1783 fclose(jvmCfg); | |
1784 knownVMsCount = cnt; | |
1785 | |
1786 if (_launcher_debug) { | |
1787 end = CounterGet(); | |
1788 printf("%ld micro seconds to parse jvm.cfg\n", | |
1789 (long)(jint)Counter2Micros(end-start)); | |
1790 } | |
1791 | |
1792 return cnt; | |
1793 } | |
1794 | |
1795 | |
1796 static void | |
1797 GrowKnownVMs(int minimum) | |
1798 { | |
1799 struct vmdesc* newKnownVMs; | |
1800 int newMax; | |
1801 | |
1802 newMax = (knownVMsLimit == 0 ? INIT_MAX_KNOWN_VMS : (2 * knownVMsLimit)); | |
1803 if (newMax <= minimum) { | |
1804 newMax = minimum; | |
1805 } | |
1806 newKnownVMs = (struct vmdesc*) MemAlloc(newMax * sizeof(struct vmdesc)); | |
1807 if (knownVMs != NULL) { | |
1808 memcpy(newKnownVMs, knownVMs, knownVMsLimit * sizeof(struct vmdesc)); | |
1809 } | |
1810 free(knownVMs); | |
1811 knownVMs = newKnownVMs; | |
1812 knownVMsLimit = newMax; | |
1813 } | |
1814 | |
1815 | |
1816 /* Returns index of VM or -1 if not found */ | |
1817 static int | |
1818 KnownVMIndex(const char* name) | |
1819 { | |
1820 int i; | |
1821 if (strncmp(name, "-J", 2) == 0) name += 2; | |
1822 for (i = 0; i < knownVMsCount; i++) { | |
1823 if (!strcmp(name, knownVMs[i].name)) { | |
1824 return i; | |
1825 } | |
1826 } | |
1827 return -1; | |
1828 } | |
1829 | |
1830 static void | |
1831 FreeKnownVMs() | |
1832 { | |
1833 int i; | |
1834 for (i = 0; i < knownVMsCount; i++) { | |
1835 free(knownVMs[i].name); | |
1836 knownVMs[i].name = NULL; | |
1837 } | |
1838 free(knownVMs); | |
1839 } | |
1840 | |
1841 #endif /* ifndef GAMMA */ |