1 /*
2 * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include <windows.h>
27 #include <io.h>
28 #include <process.h>
29 #include <stdlib.h>
30 #include <stdio.h>
31 #include <stdarg.h>
32 #include <string.h>
33 #include <sys/types.h>
34 #include <sys/stat.h>
35 #include <wtypes.h>
36 #include <commctrl.h>
37
38 #include <jni.h>
39 #include "java.h"
40
41 #define JVM_DLL "jvm.dll"
42 #define JAVA_DLL "java.dll"
43
44 /*
45 * Prototypes.
46 */
47 static jboolean GetJVMPath(const char *jrepath, const char *jvmtype,
48 char *jvmpath, jint jvmpathsize);
49 static jboolean GetJREPath(char *path, jint pathsize);
50
51 /* We supports warmup for UI stack that is performed in parallel
52 * to VM initialization.
53 * This helps to improve startup of UI application as warmup phase
54 * might be long due to initialization of OS or hardware resources.
55 * It is not CPU bound and therefore it does not interfere with VM init.
56 * Obviously such warmup only has sense for UI apps and therefore it needs
57 * to be explicitly requested by passing -Dsun.awt.warmup=true property
58 * (this is always the case for plugin/javaws).
59 *
60 * Implementation launches new thread after VM starts and use it to perform
61 * warmup code (platform dependent).
62 * This thread is later reused as AWT toolkit thread as graphics toolkit
63 * often assume that they are used from the same thread they were launched on.
64 *
65 * At the moment we only support warmup for D3D. It only possible on windows
66 * and only if other flags do not prohibit this (e.g. OpenGL support requested).
67 */
68 #undef ENABLE_AWT_PRELOAD
69 #ifndef JAVA_ARGS /* turn off AWT preloading for javac, jar, etc */
70 /* CR6999872: fastdebug crashes if awt library is loaded before JVM is
71 * initialized*/
72 #if !defined(DEBUG)
73 #define ENABLE_AWT_PRELOAD
74 #endif
75 #endif
76
77 #ifdef ENABLE_AWT_PRELOAD
78 /* "AWT was preloaded" flag;
79 * turned on by AWTPreload().
80 */
81 int awtPreloaded = 0;
82
83 /* Calls a function with the name specified
84 * the function must be int(*fn)(void).
85 */
86 int AWTPreload(const char *funcName);
87 /* stops AWT preloading */
88 void AWTPreloadStop();
89
90 /* D3D preloading */
91 /* -1: not initialized; 0: OFF, 1: ON */
92 int awtPreloadD3D = -1;
93 /* command line parameter to swith D3D preloading on */
94 #define PARAM_PRELOAD_D3D "-Dsun.awt.warmup"
95 /* D3D/OpenGL management parameters */
96 #define PARAM_NODDRAW "-Dsun.java2d.noddraw"
97 #define PARAM_D3D "-Dsun.java2d.d3d"
98 #define PARAM_OPENGL "-Dsun.java2d.opengl"
99 /* funtion in awt.dll (src/windows/native/sun/java2d/d3d/D3DPipelineManager.cpp) */
100 #define D3D_PRELOAD_FUNC "preloadD3D"
101
102 /* Extracts value of a parameter with the specified name
103 * from command line argument (returns pointer in the argument).
104 * Returns NULL if the argument does not contains the parameter.
105 * e.g.:
106 * GetParamValue("theParam", "theParam=value") returns pointer to "value".
107 */
108 const char * GetParamValue(const char *paramName, const char *arg) {
109 size_t nameLen = JLI_StrLen(paramName);
110 if (JLI_StrNCmp(paramName, arg, nameLen) == 0) {
111 /* arg[nameLen] is valid (may contain final NULL) */
112 if (arg[nameLen] == '=') {
113 return arg + nameLen + 1;
114 }
115 }
116 return NULL;
117 }
118
119 /* Checks if commandline argument contains property specified
120 * and analyze it as boolean property (true/false).
121 * Returns -1 if the argument does not contain the parameter;
122 * Returns 1 if the argument contains the parameter and its value is "true";
123 * Returns 0 if the argument contains the parameter and its value is "false".
124 */
125 int GetBoolParamValue(const char *paramName, const char *arg) {
126 const char * paramValue = GetParamValue(paramName, arg);
127 if (paramValue != NULL) {
128 if (JLI_StrCaseCmp(paramValue, "true") == 0) {
129 return 1;
130 }
131 if (JLI_StrCaseCmp(paramValue, "false") == 0) {
132 return 0;
133 }
134 }
135 return -1;
136 }
137 #endif /* ENABLE_AWT_PRELOAD */
138
139
140 static jboolean _isjavaw = JNI_FALSE;
141
142
143 jboolean
144 IsJavaw()
145 {
146 return _isjavaw;
147 }
148
149 /*
150 * Returns the arch path, to get the current arch use the
151 * macro GetArch, nbits here is ignored for now.
152 */
153 const char *
154 GetArchPath(int nbits)
155 {
156 #ifdef _M_AMD64
157 return "amd64";
158 #elif defined(_M_IA64)
159 return "ia64";
160 #else
161 return "i386";
162 #endif
163 }
164
165 /*
166 *
167 */
168 void
169 CreateExecutionEnvironment(int *pargc, char ***pargv,
170 char *jrepath, jint so_jrepath,
171 char *jvmpath, jint so_jvmpath,
172 char *jvmcfg, jint so_jvmcfg) {
173 char * jvmtype;
174 int i = 0;
175 int running = CURRENT_DATA_MODEL;
176
177 int wanted = running;
178
179 char** argv = *pargv;
180 for (i = 1; i < *pargc ; i++) {
181 if (JLI_StrCmp(argv[i], "-J-d64") == 0 || JLI_StrCmp(argv[i], "-d64") == 0) {
182 wanted = 64;
183 continue;
184 }
185 if (JLI_StrCmp(argv[i], "-J-d32") == 0 || JLI_StrCmp(argv[i], "-d32") == 0) {
186 wanted = 32;
187 continue;
188 }
189
190 if (IsJavaArgs() && argv[i][0] != '-')
191 continue;
192 if (argv[i][0] != '-')
193 break;
194 }
195 if (running != wanted) {
196 JLI_ReportErrorMessage(JRE_ERROR2, wanted);
197 exit(1);
198 }
199
200 /* Find out where the JRE is that we will be using. */
201 if (!GetJREPath(jrepath, so_jrepath)) {
202 JLI_ReportErrorMessage(JRE_ERROR1);
203 exit(2);
204 }
205
206 JLI_Snprintf(jvmcfg, so_jvmcfg, "%s%slib%s%s%sjvm.cfg",
207 jrepath, FILESEP, FILESEP, (char*)GetArch(), FILESEP);
208
209 /* Find the specified JVM type */
210 if (ReadKnownVMs(jvmcfg, JNI_FALSE) < 1) {
211 JLI_ReportErrorMessage(CFG_ERROR7);
212 exit(1);
213 }
214
215 jvmtype = CheckJvmType(pargc, pargv, JNI_FALSE);
216 if (JLI_StrCmp(jvmtype, "ERROR") == 0) {
217 JLI_ReportErrorMessage(CFG_ERROR9);
218 exit(4);
219 }
220
221 jvmpath[0] = '\0';
222 if (!GetJVMPath(jrepath, jvmtype, jvmpath, so_jvmpath)) {
223 JLI_ReportErrorMessage(CFG_ERROR8, jvmtype, jvmpath);
224 exit(4);
225 }
226 /* If we got here, jvmpath has been correctly initialized. */
227
228 /* Check if we need preload AWT */
229 #ifdef ENABLE_AWT_PRELOAD
230 argv = *pargv;
231 for (i = 0; i < *pargc ; i++) {
232 /* Tests the "turn on" parameter only if not set yet. */
233 if (awtPreloadD3D < 0) {
234 if (GetBoolParamValue(PARAM_PRELOAD_D3D, argv[i]) == 1) {
235 awtPreloadD3D = 1;
236 }
237 }
238 /* Test parameters which can disable preloading if not already disabled. */
239 if (awtPreloadD3D != 0) {
240 if (GetBoolParamValue(PARAM_NODDRAW, argv[i]) == 1
241 || GetBoolParamValue(PARAM_D3D, argv[i]) == 0
242 || GetBoolParamValue(PARAM_OPENGL, argv[i]) == 1)
243 {
244 awtPreloadD3D = 0;
245 /* no need to test the rest of the parameters */
246 break;
247 }
248 }
249 }
250 #endif /* ENABLE_AWT_PRELOAD */
251 }
252
253
254 static jboolean
255 LoadMSVCRT()
256 {
257 // Only do this once
258 static int loaded = 0;
259 char crtpath[MAXPATHLEN];
260
261 if (!loaded) {
262 /*
263 * The Microsoft C Runtime Library needs to be loaded first. A copy is
264 * assumed to be present in the "JRE path" directory. If it is not found
265 * there (or "JRE path" fails to resolve), skip the explicit load and let
266 * nature take its course, which is likely to be a failure to execute.
267 * The makefiles will provide the correct lib contained in quotes in the
268 * macro MSVCR_DLL_NAME.
269 */
270 #ifdef MSVCR_DLL_NAME
271 if (GetJREPath(crtpath, MAXPATHLEN)) {
272 if (JLI_StrLen(crtpath) + JLI_StrLen("\\bin\\") +
273 JLI_StrLen(MSVCR_DLL_NAME) >= MAXPATHLEN) {
274 JLI_ReportErrorMessage(JRE_ERROR11);
275 return JNI_FALSE;
276 }
277 (void)JLI_StrCat(crtpath, "\\bin\\" MSVCR_DLL_NAME); /* Add crt dll */
278 JLI_TraceLauncher("CRT path is %s\n", crtpath);
279 if (_access(crtpath, 0) == 0) {
280 if (LoadLibrary(crtpath) == 0) {
281 JLI_ReportErrorMessage(DLL_ERROR4, crtpath);
282 return JNI_FALSE;
283 }
284 }
285 }
286 #endif /* MSVCR_DLL_NAME */
287 #ifdef MSVCP_DLL_NAME
288 if (GetJREPath(crtpath, MAXPATHLEN)) {
289 if (JLI_StrLen(crtpath) + JLI_StrLen("\\bin\\") +
290 JLI_StrLen(MSVCP_DLL_NAME) >= MAXPATHLEN) {
291 JLI_ReportErrorMessage(JRE_ERROR11);
292 return JNI_FALSE;
293 }
294 (void)JLI_StrCat(crtpath, "\\bin\\" MSVCP_DLL_NAME); /* Add prt dll */
295 JLI_TraceLauncher("PRT path is %s\n", crtpath);
296 if (_access(crtpath, 0) == 0) {
297 if (LoadLibrary(crtpath) == 0) {
298 JLI_ReportErrorMessage(DLL_ERROR4, crtpath);
299 return JNI_FALSE;
300 }
301 }
302 }
303 #endif /* MSVCP_DLL_NAME */
304 loaded = 1;
305 }
306 return JNI_TRUE;
307 }
308
309
310 /*
311 * Find path to JRE based on .exe's location or registry settings.
312 */
313 jboolean
314 GetJREPath(char *path, jint pathsize)
315 {
316 char javadll[MAXPATHLEN];
317 struct stat s;
318
319 if (GetApplicationHome(path, pathsize)) {
320 /* Is JRE co-located with the application? */
321 JLI_Snprintf(javadll, sizeof(javadll), "%s\\bin\\" JAVA_DLL, path);
322 if (stat(javadll, &s) == 0) {
323 JLI_TraceLauncher("JRE path is %s\n", path);
324 return JNI_TRUE;
325 }
326
327 /* Does this app ship a private JRE in <apphome>\jre directory? */
328 JLI_Snprintf(javadll, sizeof (javadll), "%s\\jre\\bin\\" JAVA_DLL, path);
329 if (stat(javadll, &s) == 0) {
330 JLI_StrCat(path, "\\jre");
331 JLI_TraceLauncher("JRE path is %s\n", path);
332 return JNI_TRUE;
333 }
334 }
335
336 JLI_ReportErrorMessage(JRE_ERROR8 JAVA_DLL);
337 return JNI_FALSE;
338
339 }
340
341 /*
342 * Given a JRE location and a JVM type, construct what the name the
343 * JVM shared library will be. Return true, if such a library
344 * exists, false otherwise.
345 */
346 static jboolean
347 GetJVMPath(const char *jrepath, const char *jvmtype,
348 char *jvmpath, jint jvmpathsize)
349 {
350 struct stat s;
351 if (JLI_StrChr(jvmtype, '/') || JLI_StrChr(jvmtype, '\\')) {
352 JLI_Snprintf(jvmpath, jvmpathsize, "%s\\" JVM_DLL, jvmtype);
353 } else {
354 JLI_Snprintf(jvmpath, jvmpathsize, "%s\\bin\\%s\\" JVM_DLL,
355 jrepath, jvmtype);
356 }
357 if (stat(jvmpath, &s) == 0) {
358 return JNI_TRUE;
359 } else {
360 return JNI_FALSE;
361 }
362 }
363
364 /*
365 * Load a jvm from "jvmpath" and initialize the invocation functions.
366 */
367 jboolean
368 LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn)
369 {
370 HINSTANCE handle;
371
372 JLI_TraceLauncher("JVM path is %s\n", jvmpath);
373
374 /*
375 * The Microsoft C Runtime Library needs to be loaded first. A copy is
376 * assumed to be present in the "JRE path" directory. If it is not found
377 * there (or "JRE path" fails to resolve), skip the explicit load and let
378 * nature take its course, which is likely to be a failure to execute.
379 *
380 */
381 LoadMSVCRT();
382
383 /* Load the Java VM DLL */
384 if ((handle = LoadLibrary(jvmpath)) == 0) {
385 JLI_ReportErrorMessage(DLL_ERROR4, (char *)jvmpath);
386 return JNI_FALSE;
387 }
388
389 /* Now get the function addresses */
390 ifn->CreateJavaVM =
391 (void *)GetProcAddress(handle, "JNI_CreateJavaVM");
392 ifn->GetDefaultJavaVMInitArgs =
393 (void *)GetProcAddress(handle, "JNI_GetDefaultJavaVMInitArgs");
394 if (ifn->CreateJavaVM == 0 || ifn->GetDefaultJavaVMInitArgs == 0) {
395 JLI_ReportErrorMessage(JNI_ERROR1, (char *)jvmpath);
396 return JNI_FALSE;
397 }
398
399 return JNI_TRUE;
400 }
401
402 /*
403 * If app is "c:\foo\bin\javac", then put "c:\foo" into buf.
404 */
405 jboolean
406 GetApplicationHome(char *buf, jint bufsize)
407 {
408 char *cp;
409 GetModuleFileName(0, buf, bufsize);
410 *JLI_StrRChr(buf, '\\') = '\0'; /* remove .exe file name */
411 if ((cp = JLI_StrRChr(buf, '\\')) == 0) {
412 /* This happens if the application is in a drive root, and
413 * there is no bin directory. */
414 buf[0] = '\0';
415 return JNI_FALSE;
416 }
417 *cp = '\0'; /* remove the bin\ part */
418 return JNI_TRUE;
419 }
420
421 /*
422 * Support for doing cheap, accurate interval timing.
423 */
424 static jboolean counterAvailable = JNI_FALSE;
425 static jboolean counterInitialized = JNI_FALSE;
426 static LARGE_INTEGER counterFrequency;
427
428 jlong CounterGet()
429 {
430 LARGE_INTEGER count;
431
432 if (!counterInitialized) {
433 counterAvailable = QueryPerformanceFrequency(&counterFrequency);
434 counterInitialized = JNI_TRUE;
435 }
436 if (!counterAvailable) {
437 return 0;
438 }
439 QueryPerformanceCounter(&count);
440 return (jlong)(count.QuadPart);
441 }
442
443 jlong Counter2Micros(jlong counts)
444 {
445 if (!counterAvailable || !counterInitialized) {
446 return 0;
447 }
448 return (counts * 1000 * 1000)/counterFrequency.QuadPart;
449 }
450 /*
451 * windows snprintf does not guarantee a null terminator in the buffer,
452 * if the computed size is equal to or greater than the buffer size,
453 * as well as error conditions. This function guarantees a null terminator
454 * under all these conditions. An unreasonable buffer or size will return
455 * an error value. Under all other conditions this function will return the
456 * size of the bytes actually written minus the null terminator, similar
457 * to ansi snprintf api. Thus when calling this function the caller must
458 * ensure storage for the null terminator.
459 */
460 int
461 JLI_Snprintf(char* buffer, size_t size, const char* format, ...) {
462 int rc;
463 va_list vl;
464 if (size == 0 || buffer == NULL)
465 return -1;
466 buffer[0] = '\0';
467 va_start(vl, format);
468 rc = vsnprintf(buffer, size, format, vl);
469 va_end(vl);
470 /* force a null terminator, if something is amiss */
471 if (rc < 0) {
472 /* apply ansi semantics */
473 buffer[size - 1] = '\0';
474 return (int)size;
475 } else if (rc == size) {
476 /* force a null terminator */
477 buffer[size - 1] = '\0';
478 }
479 return rc;
480 }
481
482 void
483 JLI_ReportErrorMessage(const char* fmt, ...) {
484 va_list vl;
485 va_start(vl,fmt);
486
487 if (IsJavaw()) {
488 char *message;
489
490 /* get the length of the string we need */
491 int n = _vscprintf(fmt, vl);
492
493 message = (char *)JLI_MemAlloc(n + 1);
494 _vsnprintf(message, n, fmt, vl);
495 message[n]='\0';
496 MessageBox(NULL, message, "Java Virtual Machine Launcher",
497 (MB_OK|MB_ICONSTOP|MB_APPLMODAL));
498 JLI_MemFree(message);
499 } else {
500 vfprintf(stderr, fmt, vl);
501 fprintf(stderr, "\n");
502 }
503 va_end(vl);
504 }
505
506 /*
507 * Just like JLI_ReportErrorMessage, except that it concatenates the system
508 * error message if any, its upto the calling routine to correctly
509 * format the separation of the messages.
510 */
511 void
512 JLI_ReportErrorMessageSys(const char *fmt, ...)
513 {
514 va_list vl;
515
516 int save_errno = errno;
517 DWORD errval;
518 jboolean freeit = JNI_FALSE;
519 char *errtext = NULL;
520
521 va_start(vl, fmt);
522
523 if ((errval = GetLastError()) != 0) { /* Platform SDK / DOS Error */
524 int n = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|
525 FORMAT_MESSAGE_IGNORE_INSERTS|FORMAT_MESSAGE_ALLOCATE_BUFFER,
526 NULL, errval, 0, (LPTSTR)&errtext, 0, NULL);
527 if (errtext == NULL || n == 0) { /* Paranoia check */
528 errtext = "";
529 n = 0;
530 } else {
531 freeit = JNI_TRUE;
532 if (n > 2) { /* Drop final CR, LF */
533 if (errtext[n - 1] == '\n') n--;
534 if (errtext[n - 1] == '\r') n--;
535 errtext[n] = '\0';
536 }
537 }
538 } else { /* C runtime error that has no corresponding DOS error code */
539 errtext = strerror(save_errno);
540 }
541
542 if (IsJavaw()) {
543 char *message;
544 int mlen;
545 /* get the length of the string we need */
546 int len = mlen = _vscprintf(fmt, vl) + 1;
547 if (freeit) {
548 mlen += (int)JLI_StrLen(errtext);
549 }
550
551 message = (char *)JLI_MemAlloc(mlen);
552 _vsnprintf(message, len, fmt, vl);
553 message[len]='\0';
554
555 if (freeit) {
556 JLI_StrCat(message, errtext);
557 }
558
559 MessageBox(NULL, message, "Java Virtual Machine Launcher",
560 (MB_OK|MB_ICONSTOP|MB_APPLMODAL));
561
562 JLI_MemFree(message);
563 } else {
564 vfprintf(stderr, fmt, vl);
565 if (freeit) {
566 fprintf(stderr, "%s", errtext);
567 }
568 }
569 if (freeit) {
570 (void)LocalFree((HLOCAL)errtext);
571 }
572 va_end(vl);
573 }
574
575 void JLI_ReportExceptionDescription(JNIEnv * env) {
576 if (IsJavaw()) {
577 /*
578 * This code should be replaced by code which opens a window with
579 * the exception detail message, for now atleast put a dialog up.
580 */
581 MessageBox(NULL, "A Java Exception has occurred.", "Java Virtual Machine Launcher",
582 (MB_OK|MB_ICONSTOP|MB_APPLMODAL));
583 } else {
584 (*env)->ExceptionDescribe(env);
585 }
586 }
587
588 jboolean
589 ServerClassMachine() {
590 return (GetErgoPolicy() == ALWAYS_SERVER_CLASS) ? JNI_TRUE : JNI_FALSE;
591 }
592
593 /*
594 * Wrapper for platform dependent unsetenv function.
595 */
596 int
597 UnsetEnv(char *name)
598 {
599 int ret;
600 char *buf = JLI_MemAlloc(JLI_StrLen(name) + 2);
601 buf = JLI_StrCat(JLI_StrCpy(buf, name), "=");
602 ret = _putenv(buf);
603 JLI_MemFree(buf);
604 return (ret);
605 }
606
607 /* --- Splash Screen shared library support --- */
608
609 static const char* SPLASHSCREEN_SO = "\\bin\\splashscreen.dll";
610
611 static HMODULE hSplashLib = NULL;
612
613 void* SplashProcAddress(const char* name) {
614 char libraryPath[MAXPATHLEN]; /* some extra space for JLI_StrCat'ing SPLASHSCREEN_SO */
615
616 if (!GetJREPath(libraryPath, MAXPATHLEN)) {
617 return NULL;
618 }
619 if (JLI_StrLen(libraryPath)+JLI_StrLen(SPLASHSCREEN_SO) >= MAXPATHLEN) {
620 return NULL;
621 }
622 JLI_StrCat(libraryPath, SPLASHSCREEN_SO);
623
624 if (!hSplashLib) {
625 hSplashLib = LoadLibrary(libraryPath);
626 }
627 if (hSplashLib) {
628 return GetProcAddress(hSplashLib, name);
629 } else {
630 return NULL;
631 }
632 }
633
634 void SplashFreeLibrary() {
635 if (hSplashLib) {
636 FreeLibrary(hSplashLib);
637 hSplashLib = NULL;
638 }
639 }
640
641 /*
642 * Block current thread and continue execution in a new thread
643 */
644 int
645 ContinueInNewThread0(int (JNICALL *continuation)(void *), jlong stack_size, void * args) {
646 int rslt = 0;
647 unsigned thread_id;
648
649 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION
650 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000)
651 #endif
652
653 /*
654 * STACK_SIZE_PARAM_IS_A_RESERVATION is what we want, but it's not
655 * supported on older version of Windows. Try first with the flag; and
656 * if that fails try again without the flag. See MSDN document or HotSpot
657 * source (os_win32.cpp) for details.
658 */
659 HANDLE thread_handle =
660 (HANDLE)_beginthreadex(NULL,
661 (unsigned)stack_size,
662 continuation,
663 args,
664 STACK_SIZE_PARAM_IS_A_RESERVATION,
665 &thread_id);
666 if (thread_handle == NULL) {
667 thread_handle =
668 (HANDLE)_beginthreadex(NULL,
669 (unsigned)stack_size,
670 continuation,
671 args,
672 0,
673 &thread_id);
674 }
675
676 /* AWT preloading (AFTER main thread start) */
677 #ifdef ENABLE_AWT_PRELOAD
678 /* D3D preloading */
679 if (awtPreloadD3D != 0) {
680 char *envValue;
681 /* D3D routines checks env.var J2D_D3D if no appropriate
682 * command line params was specified
683 */
684 envValue = getenv("J2D_D3D");
685 if (envValue != NULL && JLI_StrCaseCmp(envValue, "false") == 0) {
686 awtPreloadD3D = 0;
687 }
688 /* Test that AWT preloading isn't disabled by J2D_D3D_PRELOAD env.var */
689 envValue = getenv("J2D_D3D_PRELOAD");
690 if (envValue != NULL && JLI_StrCaseCmp(envValue, "false") == 0) {
691 awtPreloadD3D = 0;
692 }
693 if (awtPreloadD3D < 0) {
694 /* If awtPreloadD3D is still undefined (-1), test
695 * if it is turned on by J2D_D3D_PRELOAD env.var.
696 * By default it's turned OFF.
697 */
698 awtPreloadD3D = 0;
699 if (envValue != NULL && JLI_StrCaseCmp(envValue, "true") == 0) {
700 awtPreloadD3D = 1;
701 }
702 }
703 }
704 if (awtPreloadD3D) {
705 AWTPreload(D3D_PRELOAD_FUNC);
706 }
707 #endif /* ENABLE_AWT_PRELOAD */
708
709 if (thread_handle) {
710 WaitForSingleObject(thread_handle, INFINITE);
711 GetExitCodeThread(thread_handle, &rslt);
712 CloseHandle(thread_handle);
713 } else {
714 rslt = continuation(args);
715 }
716
717 #ifdef ENABLE_AWT_PRELOAD
718 if (awtPreloaded) {
719 AWTPreloadStop();
720 }
721 #endif /* ENABLE_AWT_PRELOAD */
722
723 return rslt;
724 }
725
726 /* Unix only, empty on windows. */
727 void SetJavaLauncherPlatformProps() {}
728
729 /*
730 * The implementation for finding classes from the bootstrap
731 * class loader, refer to java.h
732 */
733 static FindClassFromBootLoader_t *findBootClass = NULL;
734
735 jclass FindBootStrapClass(JNIEnv *env, const char *classname)
736 {
737 HMODULE hJvm;
738
739 if (findBootClass == NULL) {
740 hJvm = GetModuleHandle(JVM_DLL);
741 if (hJvm == NULL) return NULL;
742 /* need to use the demangled entry point */
743 findBootClass = (FindClassFromBootLoader_t *)GetProcAddress(hJvm,
744 "JVM_FindClassFromBootLoader");
745 if (findBootClass == NULL) {
746 JLI_ReportErrorMessage(DLL_ERROR4, "JVM_FindClassFromBootLoader");
747 return NULL;
748 }
749 }
750 return findBootClass(env, classname);
751 }
752
753 void
754 InitLauncher(boolean javaw)
755 {
756 INITCOMMONCONTROLSEX icx;
757
758 /*
759 * Required for javaw mode MessageBox output as well as for
760 * HotSpot -XX:+ShowMessageBoxOnError in java mode, an empty
761 * flag field is sufficient to perform the basic UI initialization.
762 */
763 memset(&icx, 0, sizeof(INITCOMMONCONTROLSEX));
764 icx.dwSize = sizeof(INITCOMMONCONTROLSEX);
765 InitCommonControlsEx(&icx);
766 _isjavaw = javaw;
767 JLI_SetTraceLauncher();
768 }
769
770
771 /* ============================== */
772 /* AWT preloading */
773 #ifdef ENABLE_AWT_PRELOAD
774
775 typedef int FnPreloadStart(void);
776 typedef void FnPreloadStop(void);
777 static FnPreloadStop *fnPreloadStop = NULL;
778 static HMODULE hPreloadAwt = NULL;
779
780 /*
781 * Starts AWT preloading
782 */
783 int AWTPreload(const char *funcName)
784 {
785 int result = -1;
786 /* load AWT library once (if several preload function should be called) */
787 if (hPreloadAwt == NULL) {
788 /* awt.dll is not loaded yet */
789 char libraryPath[MAXPATHLEN];
790 size_t jrePathLen = 0;
791 HMODULE hJava = NULL;
792 HMODULE hVerify = NULL;
793
794 while (1) {
795 /* awt.dll depends on jvm.dll & java.dll;
796 * jvm.dll is already loaded, so we need only java.dll;
797 * java.dll depends on MSVCRT lib & verify.dll.
798 */
799 if (!GetJREPath(libraryPath, MAXPATHLEN)) {
800 break;
801 }
802
803 /* save path length */
804 jrePathLen = JLI_StrLen(libraryPath);
805
806 if (jrePathLen + JLI_StrLen("\\bin\\verify.dll") >= MAXPATHLEN) {
807 /* jre path is too long, the library path will not fit there;
808 * report and abort preloading
809 */
810 JLI_ReportErrorMessage(JRE_ERROR11);
811 break;
812 }
813
814 /* load msvcrt 1st */
815 LoadMSVCRT();
816
817 /* load verify.dll */
818 JLI_StrCat(libraryPath, "\\bin\\verify.dll");
819 hVerify = LoadLibrary(libraryPath);
820 if (hVerify == NULL) {
821 break;
822 }
823
824 /* restore jrePath */
825 libraryPath[jrePathLen] = 0;
826 /* load java.dll */
827 JLI_StrCat(libraryPath, "\\bin\\" JAVA_DLL);
828 hJava = LoadLibrary(libraryPath);
829 if (hJava == NULL) {
830 break;
831 }
832
833 /* restore jrePath */
834 libraryPath[jrePathLen] = 0;
835 /* load awt.dll */
836 JLI_StrCat(libraryPath, "\\bin\\awt.dll");
837 hPreloadAwt = LoadLibrary(libraryPath);
838 if (hPreloadAwt == NULL) {
839 break;
840 }
841
842 /* get "preloadStop" func ptr */
843 fnPreloadStop = (FnPreloadStop *)GetProcAddress(hPreloadAwt, "preloadStop");
844
845 break;
846 }
847 }
848
849 if (hPreloadAwt != NULL) {
850 FnPreloadStart *fnInit = (FnPreloadStart *)GetProcAddress(hPreloadAwt, funcName);
851 if (fnInit != NULL) {
852 /* don't forget to stop preloading */
853 awtPreloaded = 1;
854
855 result = fnInit();
856 }
857 }
858
859 return result;
860 }
861
862 /*
863 * Terminates AWT preloading
864 */
865 void AWTPreloadStop() {
866 if (fnPreloadStop != NULL) {
867 fnPreloadStop();
868 }
869 }
870
871 #endif /* ENABLE_AWT_PRELOAD */
872
873 int
874 JVMInit(InvocationFunctions* ifn, jlong threadStackSize,
875 int argc, char **argv,
876 int mode, char *what, int ret)
877 {
878 ShowSplashScreen();
879 return ContinueInNewThread(ifn, threadStackSize, argc, argv, mode, what, ret);
880 }
881
882 void
883 PostJVMInit(JNIEnv *env, jclass mainClass, JavaVM *vm)
884 {
885 // stubbed out for windows and *nixes.
886 }
887
888 void
889 RegisterThread()
890 {
891 // stubbed out for windows and *nixes.
892 }
893
894 /*
895 * on windows, we return a false to indicate this option is not applicable
896 */
897 jboolean
898 ProcessPlatformOption(const char *arg)
899 {
900 return JNI_FALSE;
901 }
902
903 int
904 filterArgs(StdArg *stdargs, const int nargc, StdArg **pargv) {
905 StdArg* argv = NULL;
906 int nargs = 0;
907 int i;
908
909 /* Copy the non-vm args */
910 for (i = 0; i < nargc ; i++) {
911 const char *arg = stdargs[i].arg;
912 if (arg[0] == '-' && arg[1] == 'J')
913 continue;
914 argv = (StdArg*) JLI_MemRealloc(argv, (nargs+1) * sizeof(StdArg));
915 argv[nargs].arg = JLI_StringDup(arg);
916 argv[nargs].has_wildcard = stdargs[i].has_wildcard;
917 nargs++;
918 }
919 *pargv = argv;
920 return nargs;
921 }
922
923 /*
924 * At this point we have the arguments to the application, and we need to
925 * check with original stdargs in order to compare which of these truly
926 * needs expansion. cmdtoargs will specify this if it finds a bare
927 * (unquoted) argument containing a glob character(s) ie. * or ?
928 */
929 jobjectArray
930 CreateApplicationArgs(JNIEnv *env, char **strv, int argc)
931 {
932 int i, j, idx;
933 size_t tlen;
934 jobjectArray outArray, inArray;
935 char *ostart, *astart, **nargv;
936 jboolean needs_expansion = JNI_FALSE;
937 jmethodID mid;
938 int filteredargc, stdargc;
939 StdArg *stdargs;
940 StdArg *filteredargs;
941 jclass cls = GetLauncherHelperClass(env);
942 NULL_CHECK0(cls);
943
944 if (argc == 0) {
945 return NewPlatformStringArray(env, strv, argc);
946 }
947 // the holy grail we need to compare with.
948 stdargs = JLI_GetStdArgs();
949 stdargc = JLI_GetStdArgc();
950
951 filteredargc = filterArgs(stdargs, stdargc, &filteredargs);
952
953 // sanity check, this should never happen
954 if (argc > stdargc) {
955 JLI_TraceLauncher("Warning: app args is larger than the original, %d %d\n", argc, stdargc);
956 JLI_TraceLauncher("passing arguments as-is.\n");
957 return NewPlatformStringArray(env, strv, argc);
958 }
959
960 // sanity check, match the args we have, to the holy grail
961 idx = filteredargc - argc;
962 ostart = filteredargs[idx].arg;
963 astart = strv[0];
964 // sanity check, ensure that the first argument of the arrays are the same
965 if (JLI_StrCmp(ostart, astart) != 0) {
966 // some thing is amiss the args don't match
967 JLI_TraceLauncher("Warning: app args parsing error\n");
968 JLI_TraceLauncher("passing arguments as-is\n");
969 return NewPlatformStringArray(env, strv, argc);
970 }
971
972 // make a copy of the args which will be expanded in java if required.
973 nargv = (char **)JLI_MemAlloc(argc * sizeof(char*));
974 for (i = 0, j = idx; i < argc; i++, j++) {
975 jboolean arg_expand = (JLI_StrCmp(filteredargs[j].arg, strv[i]) == 0)
976 ? filteredargs[j].has_wildcard
977 : JNI_FALSE;
978 if (needs_expansion == JNI_FALSE)
979 needs_expansion = arg_expand;
980
981 // indicator char + String + NULL terminator, the java method will strip
982 // out the first character, the indicator character, so no matter what
983 // we add the indicator
984 tlen = 1 + JLI_StrLen(strv[i]) + 1;
985 nargv[i] = (char *) JLI_MemAlloc(tlen);
986 if (JLI_Snprintf(nargv[i], tlen, "%c%s", arg_expand ? 'T' : 'F',
987 strv[i]) < 0) {
988 return NULL;
989 }
990 JLI_TraceLauncher("%s\n", nargv[i]);
991 }
992
993 if (!needs_expansion) {
994 // clean up any allocated memory and return back the old arguments
995 for (i = 0 ; i < argc ; i++) {
996 JLI_MemFree(nargv[i]);
997 }
998 JLI_MemFree(nargv);
999 return NewPlatformStringArray(env, strv, argc);
1000 }
1001 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls,
1002 "expandArgs",
1003 "([Ljava/lang/String;)[Ljava/lang/String;"));
1004
1005 // expand the arguments that require expansion, the java method will strip
1006 // out the indicator character.
1007 NULL_CHECK0(inArray = NewPlatformStringArray(env, nargv, argc));
1008 outArray = (*env)->CallStaticObjectMethod(env, cls, mid, inArray);
1009 for (i = 0; i < argc; i++) {
1010 JLI_MemFree(nargv[i]);
1011 }
1012 JLI_MemFree(nargv);
1013 JLI_MemFree(filteredargs);
1014 return outArray;
1015 }