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 /* ensure storage for path + \jre + NULL */ 327 if ((JLI_StrLen(path) + 4 + 1) > (size_t) pathsize) { 328 JLI_TraceLauncher("Insufficient space to store JRE path\n"); 329 return JNI_FALSE; 330 } 331 /* Does this app ship a private JRE in <apphome>\jre directory? */ 332 JLI_Snprintf(javadll, sizeof (javadll), "%s\\jre\\bin\\" JAVA_DLL, path); 333 if (stat(javadll, &s) == 0) { 334 JLI_StrCat(path, "\\jre"); 335 JLI_TraceLauncher("JRE path is %s\n", path); 336 return JNI_TRUE; 337 } 338 } 339 340 JLI_ReportErrorMessage(JRE_ERROR8 JAVA_DLL); 341 return JNI_FALSE; 342 343 } 344 345 /* 346 * Given a JRE location and a JVM type, construct what the name the 347 * JVM shared library will be. Return true, if such a library 348 * exists, false otherwise. 349 */ 350 static jboolean 351 GetJVMPath(const char *jrepath, const char *jvmtype, 352 char *jvmpath, jint jvmpathsize) 353 { 354 struct stat s; 355 if (JLI_StrChr(jvmtype, '/') || JLI_StrChr(jvmtype, '\\')) { 356 JLI_Snprintf(jvmpath, jvmpathsize, "%s\\" JVM_DLL, jvmtype); 357 } else { 358 JLI_Snprintf(jvmpath, jvmpathsize, "%s\\bin\\%s\\" JVM_DLL, 359 jrepath, jvmtype); 360 } 361 if (stat(jvmpath, &s) == 0) { 362 return JNI_TRUE; 363 } else { 364 return JNI_FALSE; 365 } 366 } 367 368 /* 369 * Load a jvm from "jvmpath" and initialize the invocation functions. 370 */ 371 jboolean 372 LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn) 373 { 374 HINSTANCE handle; 375 376 JLI_TraceLauncher("JVM path is %s\n", jvmpath); 377 378 /* 379 * The Microsoft C Runtime Library needs to be loaded first. A copy is 380 * assumed to be present in the "JRE path" directory. If it is not found 381 * there (or "JRE path" fails to resolve), skip the explicit load and let 382 * nature take its course, which is likely to be a failure to execute. 383 * 384 */ 385 LoadMSVCRT(); 386 387 /* Load the Java VM DLL */ 388 if ((handle = LoadLibrary(jvmpath)) == 0) { 389 JLI_ReportErrorMessage(DLL_ERROR4, (char *)jvmpath); 390 return JNI_FALSE; 391 } 392 393 /* Now get the function addresses */ 394 ifn->CreateJavaVM = 395 (void *)GetProcAddress(handle, "JNI_CreateJavaVM"); 396 ifn->GetDefaultJavaVMInitArgs = 397 (void *)GetProcAddress(handle, "JNI_GetDefaultJavaVMInitArgs"); 398 if (ifn->CreateJavaVM == 0 || ifn->GetDefaultJavaVMInitArgs == 0) { 399 JLI_ReportErrorMessage(JNI_ERROR1, (char *)jvmpath); 400 return JNI_FALSE; 401 } 402 403 return JNI_TRUE; 404 } 405 406 /* 407 * If app is "c:\foo\bin\javac", then put "c:\foo" into buf. 408 */ 409 jboolean 410 GetApplicationHome(char *buf, jint bufsize) 411 { 412 char *cp; 413 GetModuleFileName(0, buf, bufsize); 414 *JLI_StrRChr(buf, '\\') = '\0'; /* remove .exe file name */ 415 if ((cp = JLI_StrRChr(buf, '\\')) == 0) { 416 /* This happens if the application is in a drive root, and 417 * there is no bin directory. */ 418 buf[0] = '\0'; 419 return JNI_FALSE; 420 } 421 *cp = '\0'; /* remove the bin\ part */ 422 return JNI_TRUE; 423 } 424 425 /* 426 * Support for doing cheap, accurate interval timing. 427 */ 428 static jboolean counterAvailable = JNI_FALSE; 429 static jboolean counterInitialized = JNI_FALSE; 430 static LARGE_INTEGER counterFrequency; 431 432 jlong CounterGet() 433 { 434 LARGE_INTEGER count; 435 436 if (!counterInitialized) { 437 counterAvailable = QueryPerformanceFrequency(&counterFrequency); 438 counterInitialized = JNI_TRUE; 439 } 440 if (!counterAvailable) { 441 return 0; 442 } 443 QueryPerformanceCounter(&count); 444 return (jlong)(count.QuadPart); 445 } 446 447 jlong Counter2Micros(jlong counts) 448 { 449 if (!counterAvailable || !counterInitialized) { 450 return 0; 451 } 452 return (counts * 1000 * 1000)/counterFrequency.QuadPart; 453 } 454 /* 455 * windows snprintf does not guarantee a null terminator in the buffer, 456 * if the computed size is equal to or greater than the buffer size, 457 * as well as error conditions. This function guarantees a null terminator 458 * under all these conditions. An unreasonable buffer or size will return 459 * an error value. Under all other conditions this function will return the 460 * size of the bytes actually written minus the null terminator, similar 461 * to ansi snprintf api. Thus when calling this function the caller must 462 * ensure storage for the null terminator. 463 */ 464 int 465 JLI_Snprintf(char* buffer, size_t size, const char* format, ...) { 466 int rc; 467 va_list vl; 468 if (size == 0 || buffer == NULL) 469 return -1; 470 buffer[0] = '\0'; 471 va_start(vl, format); 472 rc = vsnprintf(buffer, size, format, vl); 473 va_end(vl); 474 /* force a null terminator, if something is amiss */ 475 if (rc < 0) { 476 /* apply ansi semantics */ 477 buffer[size - 1] = '\0'; 478 return (int)size; 479 } else if (rc == size) { 480 /* force a null terminator */ 481 buffer[size - 1] = '\0'; 482 } 483 return rc; 484 } 485 486 void 487 JLI_ReportErrorMessage(const char* fmt, ...) { 488 va_list vl; 489 va_start(vl,fmt); 490 491 if (IsJavaw()) { 492 char *message; 493 494 /* get the length of the string we need */ 495 int n = _vscprintf(fmt, vl); 496 497 message = (char *)JLI_MemAlloc(n + 1); 498 _vsnprintf(message, n, fmt, vl); 499 message[n]='\0'; 500 MessageBox(NULL, message, "Java Virtual Machine Launcher", 501 (MB_OK|MB_ICONSTOP|MB_APPLMODAL)); 502 JLI_MemFree(message); 503 } else { 504 vfprintf(stderr, fmt, vl); 505 fprintf(stderr, "\n"); 506 } 507 va_end(vl); 508 } 509 510 /* 511 * Just like JLI_ReportErrorMessage, except that it concatenates the system 512 * error message if any, its upto the calling routine to correctly 513 * format the separation of the messages. 514 */ 515 void 516 JLI_ReportErrorMessageSys(const char *fmt, ...) 517 { 518 va_list vl; 519 520 int save_errno = errno; 521 DWORD errval; 522 jboolean freeit = JNI_FALSE; 523 char *errtext = NULL; 524 525 va_start(vl, fmt); 526 527 if ((errval = GetLastError()) != 0) { /* Platform SDK / DOS Error */ 528 int n = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM| 529 FORMAT_MESSAGE_IGNORE_INSERTS|FORMAT_MESSAGE_ALLOCATE_BUFFER, 530 NULL, errval, 0, (LPTSTR)&errtext, 0, NULL); 531 if (errtext == NULL || n == 0) { /* Paranoia check */ 532 errtext = ""; 533 n = 0; 534 } else { 535 freeit = JNI_TRUE; 536 if (n > 2) { /* Drop final CR, LF */ 537 if (errtext[n - 1] == '\n') n--; 538 if (errtext[n - 1] == '\r') n--; 539 errtext[n] = '\0'; 540 } 541 } 542 } else { /* C runtime error that has no corresponding DOS error code */ 543 errtext = strerror(save_errno); 544 } 545 546 if (IsJavaw()) { 547 char *message; 548 int mlen; 549 /* get the length of the string we need */ 550 int len = mlen = _vscprintf(fmt, vl) + 1; 551 if (freeit) { 552 mlen += (int)JLI_StrLen(errtext); 553 } 554 555 message = (char *)JLI_MemAlloc(mlen); 556 _vsnprintf(message, len, fmt, vl); 557 message[len]='\0'; 558 559 if (freeit) { 560 JLI_StrCat(message, errtext); 561 } 562 563 MessageBox(NULL, message, "Java Virtual Machine Launcher", 564 (MB_OK|MB_ICONSTOP|MB_APPLMODAL)); 565 566 JLI_MemFree(message); 567 } else { 568 vfprintf(stderr, fmt, vl); 569 if (freeit) { 570 fprintf(stderr, "%s", errtext); 571 } 572 } 573 if (freeit) { 574 (void)LocalFree((HLOCAL)errtext); 575 } 576 va_end(vl); 577 } 578 579 void JLI_ReportExceptionDescription(JNIEnv * env) { 580 if (IsJavaw()) { 581 /* 582 * This code should be replaced by code which opens a window with 583 * the exception detail message, for now atleast put a dialog up. 584 */ 585 MessageBox(NULL, "A Java Exception has occurred.", "Java Virtual Machine Launcher", 586 (MB_OK|MB_ICONSTOP|MB_APPLMODAL)); 587 } else { 588 (*env)->ExceptionDescribe(env); 589 } 590 } 591 592 jboolean 593 ServerClassMachine() { 594 return (GetErgoPolicy() == ALWAYS_SERVER_CLASS) ? JNI_TRUE : JNI_FALSE; 595 } 596 597 /* 598 * Wrapper for platform dependent unsetenv function. 599 */ 600 int 601 UnsetEnv(char *name) 602 { 603 int ret; 604 char *buf = JLI_MemAlloc(JLI_StrLen(name) + 2); 605 buf = JLI_StrCat(JLI_StrCpy(buf, name), "="); 606 ret = _putenv(buf); 607 JLI_MemFree(buf); 608 return (ret); 609 } 610 611 /* --- Splash Screen shared library support --- */ 612 613 static const char* SPLASHSCREEN_SO = "\\bin\\splashscreen.dll"; 614 615 static HMODULE hSplashLib = NULL; 616 617 void* SplashProcAddress(const char* name) { 618 char libraryPath[MAXPATHLEN]; /* some extra space for JLI_StrCat'ing SPLASHSCREEN_SO */ 619 620 if (!GetJREPath(libraryPath, MAXPATHLEN)) { 621 return NULL; 622 } 623 if (JLI_StrLen(libraryPath)+JLI_StrLen(SPLASHSCREEN_SO) >= MAXPATHLEN) { 624 return NULL; 625 } 626 JLI_StrCat(libraryPath, SPLASHSCREEN_SO); 627 628 if (!hSplashLib) { 629 hSplashLib = LoadLibrary(libraryPath); 630 } 631 if (hSplashLib) { 632 return GetProcAddress(hSplashLib, name); 633 } else { 634 return NULL; 635 } 636 } 637 638 void SplashFreeLibrary() { 639 if (hSplashLib) { 640 FreeLibrary(hSplashLib); 641 hSplashLib = NULL; 642 } 643 } 644 645 /* 646 * Block current thread and continue execution in a new thread 647 */ 648 int 649 ContinueInNewThread0(int (JNICALL *continuation)(void *), jlong stack_size, void * args) { 650 int rslt = 0; 651 unsigned thread_id; 652 653 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION 654 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) 655 #endif 656 657 /* 658 * STACK_SIZE_PARAM_IS_A_RESERVATION is what we want, but it's not 659 * supported on older version of Windows. Try first with the flag; and 660 * if that fails try again without the flag. See MSDN document or HotSpot 661 * source (os_win32.cpp) for details. 662 */ 663 HANDLE thread_handle = 664 (HANDLE)_beginthreadex(NULL, 665 (unsigned)stack_size, 666 continuation, 667 args, 668 STACK_SIZE_PARAM_IS_A_RESERVATION, 669 &thread_id); 670 if (thread_handle == NULL) { 671 thread_handle = 672 (HANDLE)_beginthreadex(NULL, 673 (unsigned)stack_size, 674 continuation, 675 args, 676 0, 677 &thread_id); 678 } 679 680 /* AWT preloading (AFTER main thread start) */ 681 #ifdef ENABLE_AWT_PRELOAD 682 /* D3D preloading */ 683 if (awtPreloadD3D != 0) { 684 char *envValue; 685 /* D3D routines checks env.var J2D_D3D if no appropriate 686 * command line params was specified 687 */ 688 envValue = getenv("J2D_D3D"); 689 if (envValue != NULL && JLI_StrCaseCmp(envValue, "false") == 0) { 690 awtPreloadD3D = 0; 691 } 692 /* Test that AWT preloading isn't disabled by J2D_D3D_PRELOAD env.var */ 693 envValue = getenv("J2D_D3D_PRELOAD"); 694 if (envValue != NULL && JLI_StrCaseCmp(envValue, "false") == 0) { 695 awtPreloadD3D = 0; 696 } 697 if (awtPreloadD3D < 0) { 698 /* If awtPreloadD3D is still undefined (-1), test 699 * if it is turned on by J2D_D3D_PRELOAD env.var. 700 * By default it's turned OFF. 701 */ 702 awtPreloadD3D = 0; 703 if (envValue != NULL && JLI_StrCaseCmp(envValue, "true") == 0) { 704 awtPreloadD3D = 1; 705 } 706 } 707 } 708 if (awtPreloadD3D) { 709 AWTPreload(D3D_PRELOAD_FUNC); 710 } 711 #endif /* ENABLE_AWT_PRELOAD */ 712 713 if (thread_handle) { 714 WaitForSingleObject(thread_handle, INFINITE); 715 GetExitCodeThread(thread_handle, &rslt); 716 CloseHandle(thread_handle); 717 } else { 718 rslt = continuation(args); 719 } 720 721 #ifdef ENABLE_AWT_PRELOAD 722 if (awtPreloaded) { 723 AWTPreloadStop(); 724 } 725 #endif /* ENABLE_AWT_PRELOAD */ 726 727 return rslt; 728 } 729 730 /* Unix only, empty on windows. */ 731 void SetJavaLauncherPlatformProps() {} 732 733 /* 734 * The implementation for finding classes from the bootstrap 735 * class loader, refer to java.h 736 */ 737 static FindClassFromBootLoader_t *findBootClass = NULL; 738 739 jclass FindBootStrapClass(JNIEnv *env, const char *classname) 740 { 741 HMODULE hJvm; 742 743 if (findBootClass == NULL) { 744 hJvm = GetModuleHandle(JVM_DLL); 745 if (hJvm == NULL) return NULL; 746 /* need to use the demangled entry point */ 747 findBootClass = (FindClassFromBootLoader_t *)GetProcAddress(hJvm, 748 "JVM_FindClassFromBootLoader"); 749 if (findBootClass == NULL) { 750 JLI_ReportErrorMessage(DLL_ERROR4, "JVM_FindClassFromBootLoader"); 751 return NULL; 752 } 753 } 754 return findBootClass(env, classname); 755 } 756 757 void 758 InitLauncher(boolean javaw) 759 { 760 INITCOMMONCONTROLSEX icx; 761 762 /* 763 * Required for javaw mode MessageBox output as well as for 764 * HotSpot -XX:+ShowMessageBoxOnError in java mode, an empty 765 * flag field is sufficient to perform the basic UI initialization. 766 */ 767 memset(&icx, 0, sizeof(INITCOMMONCONTROLSEX)); 768 icx.dwSize = sizeof(INITCOMMONCONTROLSEX); 769 InitCommonControlsEx(&icx); 770 _isjavaw = javaw; 771 JLI_SetTraceLauncher(); 772 } 773 774 775 /* ============================== */ 776 /* AWT preloading */ 777 #ifdef ENABLE_AWT_PRELOAD 778 779 typedef int FnPreloadStart(void); 780 typedef void FnPreloadStop(void); 781 static FnPreloadStop *fnPreloadStop = NULL; 782 static HMODULE hPreloadAwt = NULL; 783 784 /* 785 * Starts AWT preloading 786 */ 787 int AWTPreload(const char *funcName) 788 { 789 int result = -1; 790 /* load AWT library once (if several preload function should be called) */ 791 if (hPreloadAwt == NULL) { 792 /* awt.dll is not loaded yet */ 793 char libraryPath[MAXPATHLEN]; 794 size_t jrePathLen = 0; 795 HMODULE hJava = NULL; 796 HMODULE hVerify = NULL; 797 798 while (1) { 799 /* awt.dll depends on jvm.dll & java.dll; 800 * jvm.dll is already loaded, so we need only java.dll; 801 * java.dll depends on MSVCRT lib & verify.dll. 802 */ 803 if (!GetJREPath(libraryPath, MAXPATHLEN)) { 804 break; 805 } 806 807 /* save path length */ 808 jrePathLen = JLI_StrLen(libraryPath); 809 810 if (jrePathLen + JLI_StrLen("\\bin\\verify.dll") >= MAXPATHLEN) { 811 /* jre path is too long, the library path will not fit there; 812 * report and abort preloading 813 */ 814 JLI_ReportErrorMessage(JRE_ERROR11); 815 break; 816 } 817 818 /* load msvcrt 1st */ 819 LoadMSVCRT(); 820 821 /* load verify.dll */ 822 JLI_StrCat(libraryPath, "\\bin\\verify.dll"); 823 hVerify = LoadLibrary(libraryPath); 824 if (hVerify == NULL) { 825 break; 826 } 827 828 /* restore jrePath */ 829 libraryPath[jrePathLen] = 0; 830 /* load java.dll */ 831 JLI_StrCat(libraryPath, "\\bin\\" JAVA_DLL); 832 hJava = LoadLibrary(libraryPath); 833 if (hJava == NULL) { 834 break; 835 } 836 837 /* restore jrePath */ 838 libraryPath[jrePathLen] = 0; 839 /* load awt.dll */ 840 JLI_StrCat(libraryPath, "\\bin\\awt.dll"); 841 hPreloadAwt = LoadLibrary(libraryPath); 842 if (hPreloadAwt == NULL) { 843 break; 844 } 845 846 /* get "preloadStop" func ptr */ 847 fnPreloadStop = (FnPreloadStop *)GetProcAddress(hPreloadAwt, "preloadStop"); 848 849 break; 850 } 851 } 852 853 if (hPreloadAwt != NULL) { 854 FnPreloadStart *fnInit = (FnPreloadStart *)GetProcAddress(hPreloadAwt, funcName); 855 if (fnInit != NULL) { 856 /* don't forget to stop preloading */ 857 awtPreloaded = 1; 858 859 result = fnInit(); 860 } 861 } 862 863 return result; 864 } 865 866 /* 867 * Terminates AWT preloading 868 */ 869 void AWTPreloadStop() { 870 if (fnPreloadStop != NULL) { 871 fnPreloadStop(); 872 } 873 } 874 875 #endif /* ENABLE_AWT_PRELOAD */ 876 877 int 878 JVMInit(InvocationFunctions* ifn, jlong threadStackSize, 879 int argc, char **argv, 880 int mode, char *what, int ret) 881 { 882 ShowSplashScreen(); 883 return ContinueInNewThread(ifn, threadStackSize, argc, argv, mode, what, ret); 884 } 885 886 void 887 PostJVMInit(JNIEnv *env, jclass mainClass, JavaVM *vm) 888 { 889 // stubbed out for windows and *nixes. 890 } 891 892 void 893 RegisterThread() 894 { 895 // stubbed out for windows and *nixes. 896 } 897 898 /* 899 * on windows, we return a false to indicate this option is not applicable 900 */ 901 jboolean 902 ProcessPlatformOption(const char *arg) 903 { 904 return JNI_FALSE; 905 } 906 907 int 908 filterArgs(StdArg *stdargs, const int nargc, StdArg **pargv) { 909 StdArg* argv = NULL; 910 int nargs = 0; 911 int i; 912 913 /* Copy the non-vm args */ 914 for (i = 0; i < nargc ; i++) { 915 const char *arg = stdargs[i].arg; 916 if (arg[0] == '-' && arg[1] == 'J') 917 continue; 918 argv = (StdArg*) JLI_MemRealloc(argv, (nargs+1) * sizeof(StdArg)); 919 argv[nargs].arg = JLI_StringDup(arg); 920 argv[nargs].has_wildcard = stdargs[i].has_wildcard; 921 nargs++; 922 } 923 *pargv = argv; 924 return nargs; 925 } 926 927 /* 928 * At this point we have the arguments to the application, and we need to 929 * check with original stdargs in order to compare which of these truly 930 * needs expansion. cmdtoargs will specify this if it finds a bare 931 * (unquoted) argument containing a glob character(s) ie. * or ? 932 */ 933 jobjectArray 934 CreateApplicationArgs(JNIEnv *env, char **strv, int argc) 935 { 936 int i, j, idx; 937 size_t tlen; 938 jobjectArray outArray, inArray; 939 char *ostart, *astart, **nargv; 940 jboolean needs_expansion = JNI_FALSE; 941 jmethodID mid; 942 int filteredargc, stdargc; 943 StdArg *stdargs; 944 StdArg *filteredargs; 945 jclass cls = GetLauncherHelperClass(env); 946 NULL_CHECK0(cls); 947 948 if (argc == 0) { 949 return NewPlatformStringArray(env, strv, argc); 950 } 951 // the holy grail we need to compare with. 952 stdargs = JLI_GetStdArgs(); 953 stdargc = JLI_GetStdArgc(); 954 955 filteredargc = filterArgs(stdargs, stdargc, &filteredargs); 956 957 // sanity check, this should never happen 958 if (argc > stdargc) { 959 JLI_TraceLauncher("Warning: app args is larger than the original, %d %d\n", argc, stdargc); 960 JLI_TraceLauncher("passing arguments as-is.\n"); 961 return NewPlatformStringArray(env, strv, argc); 962 } 963 964 // sanity check, match the args we have, to the holy grail 965 idx = filteredargc - argc; 966 ostart = filteredargs[idx].arg; 967 astart = strv[0]; 968 // sanity check, ensure that the first argument of the arrays are the same 969 if (JLI_StrCmp(ostart, astart) != 0) { 970 // some thing is amiss the args don't match 971 JLI_TraceLauncher("Warning: app args parsing error\n"); 972 JLI_TraceLauncher("passing arguments as-is\n"); 973 return NewPlatformStringArray(env, strv, argc); 974 } 975 976 // make a copy of the args which will be expanded in java if required. 977 nargv = (char **)JLI_MemAlloc(argc * sizeof(char*)); 978 for (i = 0, j = idx; i < argc; i++, j++) { 979 jboolean arg_expand = (JLI_StrCmp(filteredargs[j].arg, strv[i]) == 0) 980 ? filteredargs[j].has_wildcard 981 : JNI_FALSE; 982 if (needs_expansion == JNI_FALSE) 983 needs_expansion = arg_expand; 984 985 // indicator char + String + NULL terminator, the java method will strip 986 // out the first character, the indicator character, so no matter what 987 // we add the indicator 988 tlen = 1 + JLI_StrLen(strv[i]) + 1; 989 nargv[i] = (char *) JLI_MemAlloc(tlen); 990 if (JLI_Snprintf(nargv[i], tlen, "%c%s", arg_expand ? 'T' : 'F', 991 strv[i]) < 0) { 992 return NULL; 993 } 994 JLI_TraceLauncher("%s\n", nargv[i]); 995 } 996 997 if (!needs_expansion) { 998 // clean up any allocated memory and return back the old arguments 999 for (i = 0 ; i < argc ; i++) { 1000 JLI_MemFree(nargv[i]); 1001 } 1002 JLI_MemFree(nargv); 1003 return NewPlatformStringArray(env, strv, argc); 1004 } 1005 NULL_CHECK0(mid = (*env)->GetStaticMethodID(env, cls, 1006 "expandArgs", 1007 "([Ljava/lang/String;)[Ljava/lang/String;")); 1008 1009 // expand the arguments that require expansion, the java method will strip 1010 // out the indicator character. 1011 NULL_CHECK0(inArray = NewPlatformStringArray(env, nargv, argc)); 1012 outArray = (*env)->CallStaticObjectMethod(env, cls, mid, inArray); 1013 for (i = 0; i < argc; i++) { 1014 JLI_MemFree(nargv[i]); 1015 } 1016 JLI_MemFree(nargv); 1017 JLI_MemFree(filteredargs); 1018 return outArray; 1019 }