Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.cpp @ 4875:379b22e03c32
Merge
author | jcoomes |
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date | Fri, 03 Feb 2012 12:08:55 -0800 |
parents | de268c8a8075 aa3d708d67c4 |
children | 33df1aeaebbf da4be62fb889 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
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25 // Must be at least Windows 2000 or XP to use VectoredExceptions and IsDebuggerPresent |
0 | 26 #define _WIN32_WINNT 0x500 |
27 | |
1972 | 28 // no precompiled headers |
29 #include "classfile/classLoader.hpp" | |
30 #include "classfile/systemDictionary.hpp" | |
31 #include "classfile/vmSymbols.hpp" | |
32 #include "code/icBuffer.hpp" | |
33 #include "code/vtableStubs.hpp" | |
34 #include "compiler/compileBroker.hpp" | |
35 #include "interpreter/interpreter.hpp" | |
36 #include "jvm_windows.h" | |
37 #include "memory/allocation.inline.hpp" | |
38 #include "memory/filemap.hpp" | |
39 #include "mutex_windows.inline.hpp" | |
40 #include "oops/oop.inline.hpp" | |
41 #include "os_share_windows.hpp" | |
42 #include "prims/jniFastGetField.hpp" | |
43 #include "prims/jvm.h" | |
44 #include "prims/jvm_misc.hpp" | |
45 #include "runtime/arguments.hpp" | |
46 #include "runtime/extendedPC.hpp" | |
47 #include "runtime/globals.hpp" | |
48 #include "runtime/interfaceSupport.hpp" | |
49 #include "runtime/java.hpp" | |
50 #include "runtime/javaCalls.hpp" | |
51 #include "runtime/mutexLocker.hpp" | |
52 #include "runtime/objectMonitor.hpp" | |
53 #include "runtime/osThread.hpp" | |
54 #include "runtime/perfMemory.hpp" | |
55 #include "runtime/sharedRuntime.hpp" | |
56 #include "runtime/statSampler.hpp" | |
57 #include "runtime/stubRoutines.hpp" | |
58 #include "runtime/threadCritical.hpp" | |
59 #include "runtime/timer.hpp" | |
60 #include "services/attachListener.hpp" | |
61 #include "services/runtimeService.hpp" | |
62 #include "thread_windows.inline.hpp" | |
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63 #include "utilities/decoder.hpp" |
1972 | 64 #include "utilities/defaultStream.hpp" |
65 #include "utilities/events.hpp" | |
66 #include "utilities/growableArray.hpp" | |
67 #include "utilities/vmError.hpp" | |
68 #ifdef TARGET_ARCH_x86 | |
69 # include "assembler_x86.inline.hpp" | |
70 # include "nativeInst_x86.hpp" | |
71 #endif | |
72 #ifdef COMPILER1 | |
73 #include "c1/c1_Runtime1.hpp" | |
74 #endif | |
75 #ifdef COMPILER2 | |
76 #include "opto/runtime.hpp" | |
77 #endif | |
0 | 78 |
79 #ifdef _DEBUG | |
80 #include <crtdbg.h> | |
81 #endif | |
82 | |
83 | |
84 #include <windows.h> | |
85 #include <sys/types.h> | |
86 #include <sys/stat.h> | |
87 #include <sys/timeb.h> | |
88 #include <objidl.h> | |
89 #include <shlobj.h> | |
90 | |
91 #include <malloc.h> | |
92 #include <signal.h> | |
93 #include <direct.h> | |
94 #include <errno.h> | |
95 #include <fcntl.h> | |
96 #include <io.h> | |
97 #include <process.h> // For _beginthreadex(), _endthreadex() | |
98 #include <imagehlp.h> // For os::dll_address_to_function_name | |
99 | |
100 /* for enumerating dll libraries */ | |
101 #include <vdmdbg.h> | |
102 | |
103 // for timer info max values which include all bits | |
104 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
105 | |
106 // For DLL loading/load error detection | |
107 // Values of PE COFF | |
108 #define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c | |
109 #define IMAGE_FILE_SIGNATURE_LENGTH 4 | |
110 | |
111 static HANDLE main_process; | |
112 static HANDLE main_thread; | |
113 static int main_thread_id; | |
114 | |
115 static FILETIME process_creation_time; | |
116 static FILETIME process_exit_time; | |
117 static FILETIME process_user_time; | |
118 static FILETIME process_kernel_time; | |
119 | |
120 #ifdef _WIN64 | |
121 PVOID topLevelVectoredExceptionHandler = NULL; | |
122 #endif | |
123 | |
124 #ifdef _M_IA64 | |
125 #define __CPU__ ia64 | |
126 #elif _M_AMD64 | |
127 #define __CPU__ amd64 | |
128 #else | |
129 #define __CPU__ i486 | |
130 #endif | |
131 | |
132 // save DLL module handle, used by GetModuleFileName | |
133 | |
134 HINSTANCE vm_lib_handle; | |
135 | |
136 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
137 switch (reason) { | |
138 case DLL_PROCESS_ATTACH: | |
139 vm_lib_handle = hinst; | |
140 if(ForceTimeHighResolution) | |
141 timeBeginPeriod(1L); | |
142 break; | |
143 case DLL_PROCESS_DETACH: | |
144 if(ForceTimeHighResolution) | |
145 timeEndPeriod(1L); | |
146 #ifdef _WIN64 | |
147 if (topLevelVectoredExceptionHandler != NULL) { | |
148 RemoveVectoredExceptionHandler(topLevelVectoredExceptionHandler); | |
149 topLevelVectoredExceptionHandler = NULL; | |
150 } | |
151 #endif | |
152 break; | |
153 default: | |
154 break; | |
155 } | |
156 return true; | |
157 } | |
158 | |
159 static inline double fileTimeAsDouble(FILETIME* time) { | |
160 const double high = (double) ((unsigned int) ~0); | |
161 const double split = 10000000.0; | |
162 double result = (time->dwLowDateTime / split) + | |
163 time->dwHighDateTime * (high/split); | |
164 return result; | |
165 } | |
166 | |
167 // Implementation of os | |
168 | |
169 bool os::getenv(const char* name, char* buffer, int len) { | |
170 int result = GetEnvironmentVariable(name, buffer, len); | |
171 return result > 0 && result < len; | |
172 } | |
173 | |
174 | |
175 // No setuid programs under Windows. | |
176 bool os::have_special_privileges() { | |
177 return false; | |
178 } | |
179 | |
180 | |
181 // This method is a periodic task to check for misbehaving JNI applications | |
182 // under CheckJNI, we can add any periodic checks here. | |
183 // For Windows at the moment does nothing | |
184 void os::run_periodic_checks() { | |
185 return; | |
186 } | |
187 | |
188 #ifndef _WIN64 | |
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189 // previous UnhandledExceptionFilter, if there is one |
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190 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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191 |
0 | 192 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
193 #endif | |
194 void os::init_system_properties_values() { | |
195 /* sysclasspath, java_home, dll_dir */ | |
196 { | |
197 char *home_path; | |
198 char *dll_path; | |
199 char *pslash; | |
200 char *bin = "\\bin"; | |
201 char home_dir[MAX_PATH]; | |
202 | |
203 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
204 os::jvm_path(home_dir, sizeof(home_dir)); | |
205 // Found the full path to jvm[_g].dll. | |
206 // Now cut the path to <java_home>/jre if we can. | |
207 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
208 pslash = strrchr(home_dir, '\\'); | |
209 if (pslash != NULL) { | |
210 *pslash = '\0'; /* get rid of \{client|server} */ | |
211 pslash = strrchr(home_dir, '\\'); | |
212 if (pslash != NULL) | |
213 *pslash = '\0'; /* get rid of \bin */ | |
214 } | |
215 } | |
216 | |
217 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1); | |
218 if (home_path == NULL) | |
219 return; | |
220 strcpy(home_path, home_dir); | |
221 Arguments::set_java_home(home_path); | |
222 | |
223 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1); | |
224 if (dll_path == NULL) | |
225 return; | |
226 strcpy(dll_path, home_dir); | |
227 strcat(dll_path, bin); | |
228 Arguments::set_dll_dir(dll_path); | |
229 | |
230 if (!set_boot_path('\\', ';')) | |
231 return; | |
232 } | |
233 | |
234 /* library_path */ | |
235 #define EXT_DIR "\\lib\\ext" | |
236 #define BIN_DIR "\\bin" | |
237 #define PACKAGE_DIR "\\Sun\\Java" | |
238 { | |
239 /* Win32 library search order (See the documentation for LoadLibrary): | |
240 * | |
241 * 1. The directory from which application is loaded. | |
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242 * 2. The system wide Java Extensions directory (Java only) |
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243 * 3. System directory (GetSystemDirectory) |
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244 * 4. Windows directory (GetWindowsDirectory) |
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245 * 5. The PATH environment variable |
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246 * 6. The current directory |
0 | 247 */ |
248 | |
249 char *library_path; | |
250 char tmp[MAX_PATH]; | |
251 char *path_str = ::getenv("PATH"); | |
252 | |
253 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
254 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10); | |
255 | |
256 library_path[0] = '\0'; | |
257 | |
258 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
259 *(strrchr(tmp, '\\')) = '\0'; | |
260 strcat(library_path, tmp); | |
261 | |
262 GetWindowsDirectory(tmp, sizeof(tmp)); | |
263 strcat(library_path, ";"); | |
264 strcat(library_path, tmp); | |
265 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
266 | |
267 GetSystemDirectory(tmp, sizeof(tmp)); | |
268 strcat(library_path, ";"); | |
269 strcat(library_path, tmp); | |
270 | |
271 GetWindowsDirectory(tmp, sizeof(tmp)); | |
272 strcat(library_path, ";"); | |
273 strcat(library_path, tmp); | |
274 | |
275 if (path_str) { | |
276 strcat(library_path, ";"); | |
277 strcat(library_path, path_str); | |
278 } | |
279 | |
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280 strcat(library_path, ";."); |
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281 |
0 | 282 Arguments::set_library_path(library_path); |
283 FREE_C_HEAP_ARRAY(char, library_path); | |
284 } | |
285 | |
286 /* Default extensions directory */ | |
287 { | |
288 char path[MAX_PATH]; | |
289 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
290 GetWindowsDirectory(path, MAX_PATH); | |
291 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
292 path, PACKAGE_DIR, EXT_DIR); | |
293 Arguments::set_ext_dirs(buf); | |
294 } | |
295 #undef EXT_DIR | |
296 #undef BIN_DIR | |
297 #undef PACKAGE_DIR | |
298 | |
299 /* Default endorsed standards directory. */ | |
300 { | |
301 #define ENDORSED_DIR "\\lib\\endorsed" | |
302 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
303 char * buf = NEW_C_HEAP_ARRAY(char, len); | |
304 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); | |
305 Arguments::set_endorsed_dirs(buf); | |
306 #undef ENDORSED_DIR | |
307 } | |
308 | |
309 #ifndef _WIN64 | |
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310 // set our UnhandledExceptionFilter and save any previous one |
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311 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
0 | 312 #endif |
313 | |
314 // Done | |
315 return; | |
316 } | |
317 | |
318 void os::breakpoint() { | |
319 DebugBreak(); | |
320 } | |
321 | |
322 // Invoked from the BREAKPOINT Macro | |
323 extern "C" void breakpoint() { | |
324 os::breakpoint(); | |
325 } | |
326 | |
327 // Returns an estimate of the current stack pointer. Result must be guaranteed | |
328 // to point into the calling threads stack, and be no lower than the current | |
329 // stack pointer. | |
330 | |
331 address os::current_stack_pointer() { | |
332 int dummy; | |
333 address sp = (address)&dummy; | |
334 return sp; | |
335 } | |
336 | |
337 // os::current_stack_base() | |
338 // | |
339 // Returns the base of the stack, which is the stack's | |
340 // starting address. This function must be called | |
341 // while running on the stack of the thread being queried. | |
342 | |
343 address os::current_stack_base() { | |
344 MEMORY_BASIC_INFORMATION minfo; | |
345 address stack_bottom; | |
346 size_t stack_size; | |
347 | |
348 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
349 stack_bottom = (address)minfo.AllocationBase; | |
350 stack_size = minfo.RegionSize; | |
351 | |
352 // Add up the sizes of all the regions with the same | |
353 // AllocationBase. | |
354 while( 1 ) | |
355 { | |
356 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
357 if ( stack_bottom == (address)minfo.AllocationBase ) | |
358 stack_size += minfo.RegionSize; | |
359 else | |
360 break; | |
361 } | |
362 | |
363 #ifdef _M_IA64 | |
364 // IA64 has memory and register stacks | |
365 stack_size = stack_size / 2; | |
366 #endif | |
367 return stack_bottom + stack_size; | |
368 } | |
369 | |
370 size_t os::current_stack_size() { | |
371 size_t sz; | |
372 MEMORY_BASIC_INFORMATION minfo; | |
373 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
374 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
375 return sz; | |
376 } | |
377 | |
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378 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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379 const struct tm* time_struct_ptr = localtime(clock); |
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380 if (time_struct_ptr != NULL) { |
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381 *res = *time_struct_ptr; |
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382 return res; |
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383 } |
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384 return NULL; |
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385 } |
0 | 386 |
387 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
388 | |
389 // Thread start routine for all new Java threads | |
390 static unsigned __stdcall java_start(Thread* thread) { | |
391 // Try to randomize the cache line index of hot stack frames. | |
392 // This helps when threads of the same stack traces evict each other's | |
393 // cache lines. The threads can be either from the same JVM instance, or | |
394 // from different JVM instances. The benefit is especially true for | |
395 // processors with hyperthreading technology. | |
396 static int counter = 0; | |
397 int pid = os::current_process_id(); | |
398 _alloca(((pid ^ counter++) & 7) * 128); | |
399 | |
400 OSThread* osthr = thread->osthread(); | |
401 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
402 | |
403 if (UseNUMA) { | |
404 int lgrp_id = os::numa_get_group_id(); | |
405 if (lgrp_id != -1) { | |
406 thread->set_lgrp_id(lgrp_id); | |
407 } | |
408 } | |
409 | |
410 | |
411 if (UseVectoredExceptions) { | |
412 // If we are using vectored exception we don't need to set a SEH | |
413 thread->run(); | |
414 } | |
415 else { | |
416 // Install a win32 structured exception handler around every thread created | |
417 // by VM, so VM can genrate error dump when an exception occurred in non- | |
418 // Java thread (e.g. VM thread). | |
419 __try { | |
420 thread->run(); | |
421 } __except(topLevelExceptionFilter( | |
422 (_EXCEPTION_POINTERS*)_exception_info())) { | |
423 // Nothing to do. | |
424 } | |
425 } | |
426 | |
427 // One less thread is executing | |
428 // When the VMThread gets here, the main thread may have already exited | |
429 // which frees the CodeHeap containing the Atomic::add code | |
430 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
431 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
432 } | |
433 | |
434 return 0; | |
435 } | |
436 | |
437 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
438 // Allocate the OSThread object | |
439 OSThread* osthread = new OSThread(NULL, NULL); | |
440 if (osthread == NULL) return NULL; | |
441 | |
442 // Initialize support for Java interrupts | |
443 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
444 if (interrupt_event == NULL) { | |
445 delete osthread; | |
446 return NULL; | |
447 } | |
448 osthread->set_interrupt_event(interrupt_event); | |
449 | |
450 // Store info on the Win32 thread into the OSThread | |
451 osthread->set_thread_handle(thread_handle); | |
452 osthread->set_thread_id(thread_id); | |
453 | |
454 if (UseNUMA) { | |
455 int lgrp_id = os::numa_get_group_id(); | |
456 if (lgrp_id != -1) { | |
457 thread->set_lgrp_id(lgrp_id); | |
458 } | |
459 } | |
460 | |
461 // Initial thread state is INITIALIZED, not SUSPENDED | |
462 osthread->set_state(INITIALIZED); | |
463 | |
464 return osthread; | |
465 } | |
466 | |
467 | |
468 bool os::create_attached_thread(JavaThread* thread) { | |
469 #ifdef ASSERT | |
470 thread->verify_not_published(); | |
471 #endif | |
472 HANDLE thread_h; | |
473 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
474 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
475 fatal("DuplicateHandle failed\n"); | |
476 } | |
477 OSThread* osthread = create_os_thread(thread, thread_h, | |
478 (int)current_thread_id()); | |
479 if (osthread == NULL) { | |
480 return false; | |
481 } | |
482 | |
483 // Initial thread state is RUNNABLE | |
484 osthread->set_state(RUNNABLE); | |
485 | |
486 thread->set_osthread(osthread); | |
487 return true; | |
488 } | |
489 | |
490 bool os::create_main_thread(JavaThread* thread) { | |
491 #ifdef ASSERT | |
492 thread->verify_not_published(); | |
493 #endif | |
494 if (_starting_thread == NULL) { | |
495 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
496 if (_starting_thread == NULL) { | |
497 return false; | |
498 } | |
499 } | |
500 | |
501 // The primordial thread is runnable from the start) | |
502 _starting_thread->set_state(RUNNABLE); | |
503 | |
504 thread->set_osthread(_starting_thread); | |
505 return true; | |
506 } | |
507 | |
508 // Allocate and initialize a new OSThread | |
509 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
510 unsigned thread_id; | |
511 | |
512 // Allocate the OSThread object | |
513 OSThread* osthread = new OSThread(NULL, NULL); | |
514 if (osthread == NULL) { | |
515 return false; | |
516 } | |
517 | |
518 // Initialize support for Java interrupts | |
519 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
520 if (interrupt_event == NULL) { | |
521 delete osthread; | |
522 return NULL; | |
523 } | |
524 osthread->set_interrupt_event(interrupt_event); | |
525 osthread->set_interrupted(false); | |
526 | |
527 thread->set_osthread(osthread); | |
528 | |
529 if (stack_size == 0) { | |
530 switch (thr_type) { | |
531 case os::java_thread: | |
532 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
533 if (JavaThread::stack_size_at_create() > 0) | |
534 stack_size = JavaThread::stack_size_at_create(); | |
535 break; | |
536 case os::compiler_thread: | |
537 if (CompilerThreadStackSize > 0) { | |
538 stack_size = (size_t)(CompilerThreadStackSize * K); | |
539 break; | |
540 } // else fall through: | |
541 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
542 case os::vm_thread: | |
543 case os::pgc_thread: | |
544 case os::cgc_thread: | |
545 case os::watcher_thread: | |
546 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
547 break; | |
548 } | |
549 } | |
550 | |
551 // Create the Win32 thread | |
552 // | |
553 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
554 // does not specify stack size. Instead, it specifies the size of | |
555 // initially committed space. The stack size is determined by | |
556 // PE header in the executable. If the committed "stack_size" is larger | |
557 // than default value in the PE header, the stack is rounded up to the | |
558 // nearest multiple of 1MB. For example if the launcher has default | |
559 // stack size of 320k, specifying any size less than 320k does not | |
560 // affect the actual stack size at all, it only affects the initial | |
561 // commitment. On the other hand, specifying 'stack_size' larger than | |
562 // default value may cause significant increase in memory usage, because | |
563 // not only the stack space will be rounded up to MB, but also the | |
564 // entire space is committed upfront. | |
565 // | |
566 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
567 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
568 // are not supposed to call CreateThread() directly according to MSDN | |
569 // document because JVM uses C runtime library. The good news is that the | |
570 // flag appears to work with _beginthredex() as well. | |
571 | |
572 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
573 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
574 #endif | |
575 | |
576 HANDLE thread_handle = | |
577 (HANDLE)_beginthreadex(NULL, | |
578 (unsigned)stack_size, | |
579 (unsigned (__stdcall *)(void*)) java_start, | |
580 thread, | |
581 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
582 &thread_id); | |
583 if (thread_handle == NULL) { | |
584 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
585 // without the flag. | |
586 thread_handle = | |
587 (HANDLE)_beginthreadex(NULL, | |
588 (unsigned)stack_size, | |
589 (unsigned (__stdcall *)(void*)) java_start, | |
590 thread, | |
591 CREATE_SUSPENDED, | |
592 &thread_id); | |
593 } | |
594 if (thread_handle == NULL) { | |
595 // Need to clean up stuff we've allocated so far | |
596 CloseHandle(osthread->interrupt_event()); | |
597 thread->set_osthread(NULL); | |
598 delete osthread; | |
599 return NULL; | |
600 } | |
601 | |
602 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
603 | |
604 // Store info on the Win32 thread into the OSThread | |
605 osthread->set_thread_handle(thread_handle); | |
606 osthread->set_thread_id(thread_id); | |
607 | |
608 // Initial thread state is INITIALIZED, not SUSPENDED | |
609 osthread->set_state(INITIALIZED); | |
610 | |
611 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
612 return true; | |
613 } | |
614 | |
615 | |
616 // Free Win32 resources related to the OSThread | |
617 void os::free_thread(OSThread* osthread) { | |
618 assert(osthread != NULL, "osthread not set"); | |
619 CloseHandle(osthread->thread_handle()); | |
620 CloseHandle(osthread->interrupt_event()); | |
621 delete osthread; | |
622 } | |
623 | |
624 | |
625 static int has_performance_count = 0; | |
626 static jlong first_filetime; | |
627 static jlong initial_performance_count; | |
628 static jlong performance_frequency; | |
629 | |
630 | |
631 jlong as_long(LARGE_INTEGER x) { | |
632 jlong result = 0; // initialization to avoid warning | |
633 set_high(&result, x.HighPart); | |
634 set_low(&result, x.LowPart); | |
635 return result; | |
636 } | |
637 | |
638 | |
639 jlong os::elapsed_counter() { | |
640 LARGE_INTEGER count; | |
641 if (has_performance_count) { | |
642 QueryPerformanceCounter(&count); | |
643 return as_long(count) - initial_performance_count; | |
644 } else { | |
645 FILETIME wt; | |
646 GetSystemTimeAsFileTime(&wt); | |
647 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
648 } | |
649 } | |
650 | |
651 | |
652 jlong os::elapsed_frequency() { | |
653 if (has_performance_count) { | |
654 return performance_frequency; | |
655 } else { | |
656 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
657 return 10000000; | |
658 } | |
659 } | |
660 | |
661 | |
662 julong os::available_memory() { | |
663 return win32::available_memory(); | |
664 } | |
665 | |
666 julong os::win32::available_memory() { | |
877
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667 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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668 // value if total memory is larger than 4GB |
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669 MEMORYSTATUSEX ms; |
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670 ms.dwLength = sizeof(ms); |
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671 GlobalMemoryStatusEx(&ms); |
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672 |
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673 return (julong)ms.ullAvailPhys; |
0 | 674 } |
675 | |
676 julong os::physical_memory() { | |
677 return win32::physical_memory(); | |
678 } | |
679 | |
680 julong os::allocatable_physical_memory(julong size) { | |
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681 #ifdef _LP64 |
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682 return size; |
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683 #else |
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684 // Limit to 1400m because of the 2gb address space wall |
0 | 685 return MIN2(size, (julong)1400*M); |
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686 #endif |
0 | 687 } |
688 | |
689 // VC6 lacks DWORD_PTR | |
690 #if _MSC_VER < 1300 | |
691 typedef UINT_PTR DWORD_PTR; | |
692 #endif | |
693 | |
694 int os::active_processor_count() { | |
695 DWORD_PTR lpProcessAffinityMask = 0; | |
696 DWORD_PTR lpSystemAffinityMask = 0; | |
697 int proc_count = processor_count(); | |
698 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
699 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
700 // Nof active processors is number of bits in process affinity mask | |
701 int bitcount = 0; | |
702 while (lpProcessAffinityMask != 0) { | |
703 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
704 bitcount++; | |
705 } | |
706 return bitcount; | |
707 } else { | |
708 return proc_count; | |
709 } | |
710 } | |
711 | |
4006 | 712 void os::set_native_thread_name(const char *name) { |
713 // Not yet implemented. | |
714 return; | |
715 } | |
716 | |
0 | 717 bool os::distribute_processes(uint length, uint* distribution) { |
718 // Not yet implemented. | |
719 return false; | |
720 } | |
721 | |
722 bool os::bind_to_processor(uint processor_id) { | |
723 // Not yet implemented. | |
724 return false; | |
725 } | |
726 | |
727 static void initialize_performance_counter() { | |
728 LARGE_INTEGER count; | |
729 if (QueryPerformanceFrequency(&count)) { | |
730 has_performance_count = 1; | |
731 performance_frequency = as_long(count); | |
732 QueryPerformanceCounter(&count); | |
733 initial_performance_count = as_long(count); | |
734 } else { | |
735 has_performance_count = 0; | |
736 FILETIME wt; | |
737 GetSystemTimeAsFileTime(&wt); | |
738 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
739 } | |
740 } | |
741 | |
742 | |
743 double os::elapsedTime() { | |
744 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
745 } | |
746 | |
747 | |
748 // Windows format: | |
749 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
750 // Java format: | |
751 // Java standards require the number of milliseconds since 1/1/1970 | |
752 | |
753 // Constant offset - calculated using offset() | |
754 static jlong _offset = 116444736000000000; | |
755 // Fake time counter for reproducible results when debugging | |
756 static jlong fake_time = 0; | |
757 | |
758 #ifdef ASSERT | |
759 // Just to be safe, recalculate the offset in debug mode | |
760 static jlong _calculated_offset = 0; | |
761 static int _has_calculated_offset = 0; | |
762 | |
763 jlong offset() { | |
764 if (_has_calculated_offset) return _calculated_offset; | |
765 SYSTEMTIME java_origin; | |
766 java_origin.wYear = 1970; | |
767 java_origin.wMonth = 1; | |
768 java_origin.wDayOfWeek = 0; // ignored | |
769 java_origin.wDay = 1; | |
770 java_origin.wHour = 0; | |
771 java_origin.wMinute = 0; | |
772 java_origin.wSecond = 0; | |
773 java_origin.wMilliseconds = 0; | |
774 FILETIME jot; | |
775 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
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776 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
0 | 777 } |
778 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
779 _has_calculated_offset = 1; | |
780 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
781 return _calculated_offset; | |
782 } | |
783 #else | |
784 jlong offset() { | |
785 return _offset; | |
786 } | |
787 #endif | |
788 | |
789 jlong windows_to_java_time(FILETIME wt) { | |
790 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
791 return (a - offset()) / 10000; | |
792 } | |
793 | |
794 FILETIME java_to_windows_time(jlong l) { | |
795 jlong a = (l * 10000) + offset(); | |
796 FILETIME result; | |
797 result.dwHighDateTime = high(a); | |
798 result.dwLowDateTime = low(a); | |
799 return result; | |
800 } | |
801 | |
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802 // For now, we say that Windows does not support vtime. I have no idea |
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803 // whether it can actually be made to (DLD, 9/13/05). |
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804 |
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805 bool os::supports_vtime() { return false; } |
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806 bool os::enable_vtime() { return false; } |
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807 bool os::vtime_enabled() { return false; } |
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808 double os::elapsedVTime() { |
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809 // better than nothing, but not much |
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810 return elapsedTime(); |
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811 } |
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812 |
0 | 813 jlong os::javaTimeMillis() { |
814 if (UseFakeTimers) { | |
815 return fake_time++; | |
816 } else { | |
61 | 817 FILETIME wt; |
818 GetSystemTimeAsFileTime(&wt); | |
819 return windows_to_java_time(wt); | |
0 | 820 } |
821 } | |
822 | |
823 jlong os::javaTimeNanos() { | |
824 if (!has_performance_count) { | |
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825 return javaTimeMillis() * NANOSECS_PER_MILLISEC; // the best we can do. |
0 | 826 } else { |
827 LARGE_INTEGER current_count; | |
828 QueryPerformanceCounter(¤t_count); | |
829 double current = as_long(current_count); | |
830 double freq = performance_frequency; | |
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831 jlong time = (jlong)((current/freq) * NANOSECS_PER_SEC); |
0 | 832 return time; |
833 } | |
834 } | |
835 | |
836 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
837 if (!has_performance_count) { | |
838 // javaTimeMillis() doesn't have much percision, | |
839 // but it is not going to wrap -- so all 64 bits | |
840 info_ptr->max_value = ALL_64_BITS; | |
841 | |
842 // this is a wall clock timer, so may skip | |
843 info_ptr->may_skip_backward = true; | |
844 info_ptr->may_skip_forward = true; | |
845 } else { | |
846 jlong freq = performance_frequency; | |
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847 if (freq < NANOSECS_PER_SEC) { |
0 | 848 // the performance counter is 64 bits and we will |
849 // be multiplying it -- so no wrap in 64 bits | |
850 info_ptr->max_value = ALL_64_BITS; | |
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851 } else if (freq > NANOSECS_PER_SEC) { |
0 | 852 // use the max value the counter can reach to |
853 // determine the max value which could be returned | |
854 julong max_counter = (julong)ALL_64_BITS; | |
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855 info_ptr->max_value = (jlong)(max_counter / (freq / NANOSECS_PER_SEC)); |
0 | 856 } else { |
857 // the performance counter is 64 bits and we will | |
858 // be using it directly -- so no wrap in 64 bits | |
859 info_ptr->max_value = ALL_64_BITS; | |
860 } | |
861 | |
862 // using a counter, so no skipping | |
863 info_ptr->may_skip_backward = false; | |
864 info_ptr->may_skip_forward = false; | |
865 } | |
866 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
867 } | |
868 | |
869 char* os::local_time_string(char *buf, size_t buflen) { | |
870 SYSTEMTIME st; | |
871 GetLocalTime(&st); | |
872 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
873 st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); | |
874 return buf; | |
875 } | |
876 | |
877 bool os::getTimesSecs(double* process_real_time, | |
878 double* process_user_time, | |
879 double* process_system_time) { | |
880 HANDLE h_process = GetCurrentProcess(); | |
881 FILETIME create_time, exit_time, kernel_time, user_time; | |
882 BOOL result = GetProcessTimes(h_process, | |
883 &create_time, | |
884 &exit_time, | |
885 &kernel_time, | |
886 &user_time); | |
887 if (result != 0) { | |
888 FILETIME wt; | |
889 GetSystemTimeAsFileTime(&wt); | |
890 jlong rtc_millis = windows_to_java_time(wt); | |
891 jlong user_millis = windows_to_java_time(user_time); | |
892 jlong system_millis = windows_to_java_time(kernel_time); | |
893 *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS); | |
894 *process_user_time = ((double) user_millis) / ((double) MILLIUNITS); | |
895 *process_system_time = ((double) system_millis) / ((double) MILLIUNITS); | |
896 return true; | |
897 } else { | |
898 return false; | |
899 } | |
900 } | |
901 | |
902 void os::shutdown() { | |
903 | |
904 // allow PerfMemory to attempt cleanup of any persistent resources | |
905 perfMemory_exit(); | |
906 | |
907 // flush buffered output, finish log files | |
908 ostream_abort(); | |
909 | |
910 // Check for abort hook | |
911 abort_hook_t abort_hook = Arguments::abort_hook(); | |
912 if (abort_hook != NULL) { | |
913 abort_hook(); | |
914 } | |
915 } | |
916 | |
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917 |
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918 static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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919 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
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920 |
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921 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { |
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922 HINSTANCE dbghelp; |
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923 EXCEPTION_POINTERS ep; |
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924 MINIDUMP_EXCEPTION_INFORMATION mei; |
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925 MINIDUMP_EXCEPTION_INFORMATION* pmei; |
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926 |
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927 HANDLE hProcess = GetCurrentProcess(); |
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928 DWORD processId = GetCurrentProcessId(); |
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929 HANDLE dumpFile; |
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930 MINIDUMP_TYPE dumpType; |
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931 static const char* cwd; |
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932 |
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933 // If running on a client version of Windows and user has not explicitly enabled dumping |
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934 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) { |
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935 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false); |
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936 return; |
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937 // If running on a server version of Windows and user has explictly disabled dumping |
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938 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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939 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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940 return; |
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941 } |
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942 |
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943 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0); |
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944 |
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945 if (dbghelp == NULL) { |
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946 VMError::report_coredump_status("Failed to load dbghelp.dll", false); |
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947 return; |
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948 } |
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949 |
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950 _MiniDumpWriteDump = CAST_TO_FN_PTR( |
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951 BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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952 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION), |
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953 GetProcAddress(dbghelp, "MiniDumpWriteDump")); |
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954 |
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955 if (_MiniDumpWriteDump == NULL) { |
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956 VMError::report_coredump_status("Failed to find MiniDumpWriteDump() in module dbghelp.dll", false); |
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957 return; |
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958 } |
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959 |
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960 dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
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961 |
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962 // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
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963 // API_VERSION_NUMBER 11 or higher contains the ones we want though |
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964 #if API_VERSION_NUMBER >= 11 |
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965 dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
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966 MiniDumpWithUnloadedModules); |
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967 #endif |
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968 |
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969 cwd = get_current_directory(NULL, 0); |
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970 jio_snprintf(buffer, bufferSize, "%s\\hs_err_pid%u.mdmp",cwd, current_process_id()); |
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971 dumpFile = CreateFile(buffer, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
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972 |
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973 if (dumpFile == INVALID_HANDLE_VALUE) { |
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974 VMError::report_coredump_status("Failed to create file for dumping", false); |
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975 return; |
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976 } |
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977 if (exceptionRecord != NULL && contextRecord != NULL) { |
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978 ep.ContextRecord = (PCONTEXT) contextRecord; |
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979 ep.ExceptionRecord = (PEXCEPTION_RECORD) exceptionRecord; |
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980 |
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981 mei.ThreadId = GetCurrentThreadId(); |
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982 mei.ExceptionPointers = &ep; |
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983 pmei = &mei; |
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984 } else { |
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985 pmei = NULL; |
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986 } |
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987 |
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988 |
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989 // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
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990 // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
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991 if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == false && |
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992 _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == false) { |
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993 VMError::report_coredump_status("Call to MiniDumpWriteDump() failed", false); |
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994 } else { |
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995 VMError::report_coredump_status(buffer, true); |
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996 } |
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997 |
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998 CloseHandle(dumpFile); |
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999 } |
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1000 |
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1001 |
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1002 |
0 | 1003 void os::abort(bool dump_core) |
1004 { | |
1005 os::shutdown(); | |
1006 // no core dump on Windows | |
1007 ::exit(1); | |
1008 } | |
1009 | |
1010 // Die immediately, no exit hook, no abort hook, no cleanup. | |
1011 void os::die() { | |
1012 _exit(-1); | |
1013 } | |
1014 | |
1015 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
1016 // * dirent_md.c 1.15 00/02/02 | |
1017 // | |
1018 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
1019 | |
1020 /* Caller must have already run dirname through JVM_NativePath, which removes | |
1021 duplicate slashes and converts all instances of '/' into '\\'. */ | |
1022 | |
1023 DIR * | |
1024 os::opendir(const char *dirname) | |
1025 { | |
1026 assert(dirname != NULL, "just checking"); // hotspot change | |
1027 DIR *dirp = (DIR *)malloc(sizeof(DIR)); | |
1028 DWORD fattr; // hotspot change | |
1029 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
1030 | |
1031 if (dirp == 0) { | |
1032 errno = ENOMEM; | |
1033 return 0; | |
1034 } | |
1035 | |
1036 /* | |
1037 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
1038 * as a directory in FindFirstFile(). We detect this case here and | |
1039 * prepend the current drive name. | |
1040 */ | |
1041 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
1042 alt_dirname[0] = _getdrive() + 'A' - 1; | |
1043 alt_dirname[1] = ':'; | |
1044 alt_dirname[2] = '\\'; | |
1045 alt_dirname[3] = '\0'; | |
1046 dirname = alt_dirname; | |
1047 } | |
1048 | |
1049 dirp->path = (char *)malloc(strlen(dirname) + 5); | |
1050 if (dirp->path == 0) { | |
1051 free(dirp); | |
1052 errno = ENOMEM; | |
1053 return 0; | |
1054 } | |
1055 strcpy(dirp->path, dirname); | |
1056 | |
1057 fattr = GetFileAttributes(dirp->path); | |
1058 if (fattr == 0xffffffff) { | |
1059 free(dirp->path); | |
1060 free(dirp); | |
1061 errno = ENOENT; | |
1062 return 0; | |
1063 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
1064 free(dirp->path); | |
1065 free(dirp); | |
1066 errno = ENOTDIR; | |
1067 return 0; | |
1068 } | |
1069 | |
1070 /* Append "*.*", or possibly "\\*.*", to path */ | |
1071 if (dirp->path[1] == ':' | |
1072 && (dirp->path[2] == '\0' | |
1073 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
1074 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
1075 strcat(dirp->path, "*.*"); | |
1076 } else { | |
1077 strcat(dirp->path, "\\*.*"); | |
1078 } | |
1079 | |
1080 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
1081 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
1082 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
1083 free(dirp->path); | |
1084 free(dirp); | |
1085 errno = EACCES; | |
1086 return 0; | |
1087 } | |
1088 } | |
1089 return dirp; | |
1090 } | |
1091 | |
1092 /* parameter dbuf unused on Windows */ | |
1093 | |
1094 struct dirent * | |
1095 os::readdir(DIR *dirp, dirent *dbuf) | |
1096 { | |
1097 assert(dirp != NULL, "just checking"); // hotspot change | |
1098 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
1099 return 0; | |
1100 } | |
1101 | |
1102 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
1103 | |
1104 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
1105 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
1106 errno = EBADF; | |
1107 return 0; | |
1108 } | |
1109 FindClose(dirp->handle); | |
1110 dirp->handle = INVALID_HANDLE_VALUE; | |
1111 } | |
1112 | |
1113 return &dirp->dirent; | |
1114 } | |
1115 | |
1116 int | |
1117 os::closedir(DIR *dirp) | |
1118 { | |
1119 assert(dirp != NULL, "just checking"); // hotspot change | |
1120 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
1121 if (!FindClose(dirp->handle)) { | |
1122 errno = EBADF; | |
1123 return -1; | |
1124 } | |
1125 dirp->handle = INVALID_HANDLE_VALUE; | |
1126 } | |
1127 free(dirp->path); | |
1128 free(dirp); | |
1129 return 0; | |
1130 } | |
1131 | |
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1132 // This must be hard coded because it's the system's temporary |
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1133 // directory not the java application's temp directory, ala java.io.tmpdir. |
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1134 const char* os::get_temp_directory() { |
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1135 static char path_buf[MAX_PATH]; |
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1136 if (GetTempPath(MAX_PATH, path_buf)>0) |
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1137 return path_buf; |
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1138 else{ |
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1139 path_buf[0]='\0'; |
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1140 return path_buf; |
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1141 } |
0 | 1142 } |
1143 | |
691 | 1144 static bool file_exists(const char* filename) { |
1145 if (filename == NULL || strlen(filename) == 0) { | |
1146 return false; | |
1147 } | |
1148 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
1149 } | |
1150 | |
1151 void os::dll_build_name(char *buffer, size_t buflen, | |
1152 const char* pname, const char* fname) { | |
1153 const size_t pnamelen = pname ? strlen(pname) : 0; | |
1154 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
1155 | |
1156 // Quietly truncates on buffer overflow. Should be an error. | |
1157 if (pnamelen + strlen(fname) + 10 > buflen) { | |
1158 *buffer = '\0'; | |
1159 return; | |
1160 } | |
1161 | |
1162 if (pnamelen == 0) { | |
1163 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
1164 } else if (c == ':' || c == '\\') { | |
1165 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
1166 } else if (strchr(pname, *os::path_separator()) != NULL) { | |
1167 int n; | |
1168 char** pelements = split_path(pname, &n); | |
1169 for (int i = 0 ; i < n ; i++) { | |
1170 char* path = pelements[i]; | |
1171 // Really shouldn't be NULL, but check can't hurt | |
1172 size_t plen = (path == NULL) ? 0 : strlen(path); | |
1173 if (plen == 0) { | |
1174 continue; // skip the empty path values | |
1175 } | |
1176 const char lastchar = path[plen - 1]; | |
1177 if (lastchar == ':' || lastchar == '\\') { | |
1178 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
1179 } else { | |
1180 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
1181 } | |
1182 if (file_exists(buffer)) { | |
1183 break; | |
1184 } | |
242 | 1185 } |
691 | 1186 // release the storage |
1187 for (int i = 0 ; i < n ; i++) { | |
1188 if (pelements[i] != NULL) { | |
1189 FREE_C_HEAP_ARRAY(char, pelements[i]); | |
1190 } | |
242 | 1191 } |
691 | 1192 if (pelements != NULL) { |
1193 FREE_C_HEAP_ARRAY(char*, pelements); | |
1194 } | |
1195 } else { | |
1196 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
1197 } | |
242 | 1198 } |
1199 | |
0 | 1200 // Needs to be in os specific directory because windows requires another |
1201 // header file <direct.h> | |
1202 const char* os::get_current_directory(char *buf, int buflen) { | |
1203 return _getcwd(buf, buflen); | |
1204 } | |
1205 | |
1206 //----------------------------------------------------------- | |
1207 // Helper functions for fatal error handler | |
1208 #ifdef _WIN64 | |
1209 // Helper routine which returns true if address in | |
1210 // within the NTDLL address space. | |
1211 // | |
1212 static bool _addr_in_ntdll( address addr ) | |
1213 { | |
1214 HMODULE hmod; | |
1215 MODULEINFO minfo; | |
1216 | |
1217 hmod = GetModuleHandle("NTDLL.DLL"); | |
1218 if ( hmod == NULL ) return false; | |
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1219 if ( !os::PSApiDll::GetModuleInformation( GetCurrentProcess(), hmod, |
0 | 1220 &minfo, sizeof(MODULEINFO)) ) |
1221 return false; | |
1222 | |
1223 if ( (addr >= minfo.lpBaseOfDll) && | |
1224 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
1225 return true; | |
1226 else | |
1227 return false; | |
1228 } | |
1229 #endif | |
1230 | |
1231 | |
1232 // Enumerate all modules for a given process ID | |
1233 // | |
1234 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
1235 // different API for doing this. We use PSAPI.DLL on NT based | |
1236 // Windows and ToolHelp on 95/98/Me. | |
1237 | |
1238 // Callback function that is called by enumerate_modules() on | |
1239 // every DLL module. | |
1240 // Input parameters: | |
1241 // int pid, | |
1242 // char* module_file_name, | |
1243 // address module_base_addr, | |
1244 // unsigned module_size, | |
1245 // void* param | |
1246 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
1247 | |
1248 // enumerate_modules for Windows NT, using PSAPI | |
1249 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
1250 { | |
1251 HANDLE hProcess ; | |
1252 | |
1253 # define MAX_NUM_MODULES 128 | |
1254 HMODULE modules[MAX_NUM_MODULES]; | |
1255 static char filename[ MAX_PATH ]; | |
1256 int result = 0; | |
1257 | |
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1258 if (!os::PSApiDll::PSApiAvailable()) { |
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1259 return 0; |
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1260 } |
0 | 1261 |
1262 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
1263 FALSE, pid ) ; | |
1264 if (hProcess == NULL) return 0; | |
1265 | |
1266 DWORD size_needed; | |
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1267 if (!os::PSApiDll::EnumProcessModules(hProcess, modules, |
0 | 1268 sizeof(modules), &size_needed)) { |
1269 CloseHandle( hProcess ); | |
1270 return 0; | |
1271 } | |
1272 | |
1273 // number of modules that are currently loaded | |
1274 int num_modules = size_needed / sizeof(HMODULE); | |
1275 | |
1276 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
1277 // Get Full pathname: | |
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1278 if(!os::PSApiDll::GetModuleFileNameEx(hProcess, modules[i], |
0 | 1279 filename, sizeof(filename))) { |
1280 filename[0] = '\0'; | |
1281 } | |
1282 | |
1283 MODULEINFO modinfo; | |
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1284 if (!os::PSApiDll::GetModuleInformation(hProcess, modules[i], |
0 | 1285 &modinfo, sizeof(modinfo))) { |
1286 modinfo.lpBaseOfDll = NULL; | |
1287 modinfo.SizeOfImage = 0; | |
1288 } | |
1289 | |
1290 // Invoke callback function | |
1291 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
1292 modinfo.SizeOfImage, param); | |
1293 if (result) break; | |
1294 } | |
1295 | |
1296 CloseHandle( hProcess ) ; | |
1297 return result; | |
1298 } | |
1299 | |
1300 | |
1301 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
1302 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
1303 { | |
1304 HANDLE hSnapShot ; | |
1305 static MODULEENTRY32 modentry ; | |
1306 int result = 0; | |
1307 | |
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1308 if (!os::Kernel32Dll::HelpToolsAvailable()) { |
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1309 return 0; |
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1310 } |
0 | 1311 |
1312 // Get a handle to a Toolhelp snapshot of the system | |
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1313 hSnapShot = os::Kernel32Dll::CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; |
0 | 1314 if( hSnapShot == INVALID_HANDLE_VALUE ) { |
1315 return FALSE ; | |
1316 } | |
1317 | |
1318 // iterate through all modules | |
1319 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1320 bool not_done = os::Kernel32Dll::Module32First( hSnapShot, &modentry ) != 0; |
0 | 1321 |
1322 while( not_done ) { | |
1323 // invoke the callback | |
1324 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
1325 modentry.modBaseSize, param); | |
1326 if (result) break; | |
1327 | |
1328 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1329 not_done = os::Kernel32Dll::Module32Next( hSnapShot, &modentry ) != 0; |
0 | 1330 } |
1331 | |
1332 CloseHandle(hSnapShot); | |
1333 return result; | |
1334 } | |
1335 | |
1336 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
1337 { | |
1338 // Get current process ID if caller doesn't provide it. | |
1339 if (!pid) pid = os::current_process_id(); | |
1340 | |
1341 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
1342 else return _enumerate_modules_windows(pid, func, param); | |
1343 } | |
1344 | |
1345 struct _modinfo { | |
1346 address addr; | |
1347 char* full_path; // point to a char buffer | |
1348 int buflen; // size of the buffer | |
1349 address base_addr; | |
1350 }; | |
1351 | |
1352 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
1353 unsigned size, void * param) { | |
1354 struct _modinfo *pmod = (struct _modinfo *)param; | |
1355 if (!pmod) return -1; | |
1356 | |
1357 if (base_addr <= pmod->addr && | |
1358 base_addr+size > pmod->addr) { | |
1359 // if a buffer is provided, copy path name to the buffer | |
1360 if (pmod->full_path) { | |
1361 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
1362 } | |
1363 pmod->base_addr = base_addr; | |
1364 return 1; | |
1365 } | |
1366 return 0; | |
1367 } | |
1368 | |
1369 bool os::dll_address_to_library_name(address addr, char* buf, | |
1370 int buflen, int* offset) { | |
1371 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always | |
1372 // return the full path to the DLL file, sometimes it returns path | |
1373 // to the corresponding PDB file (debug info); sometimes it only | |
1374 // returns partial path, which makes life painful. | |
1375 | |
1376 struct _modinfo mi; | |
1377 mi.addr = addr; | |
1378 mi.full_path = buf; | |
1379 mi.buflen = buflen; | |
1380 int pid = os::current_process_id(); | |
1381 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { | |
1382 // buf already contains path name | |
1383 if (offset) *offset = addr - mi.base_addr; | |
1384 return true; | |
1385 } else { | |
1386 if (buf) buf[0] = '\0'; | |
1387 if (offset) *offset = -1; | |
1388 return false; | |
1389 } | |
1390 } | |
1391 | |
1392 bool os::dll_address_to_function_name(address addr, char *buf, | |
1393 int buflen, int *offset) { | |
4803 | 1394 if (Decoder::decode(addr, buf, buflen, offset)) { |
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1395 return true; |
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1396 } |
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1397 if (offset != NULL) *offset = -1; |
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1398 if (buf != NULL) buf[0] = '\0'; |
0 | 1399 return false; |
1400 } | |
1401 | |
1402 // save the start and end address of jvm.dll into param[0] and param[1] | |
1403 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
1404 unsigned size, void * param) { | |
1405 if (!param) return -1; | |
1406 | |
1407 if (base_addr <= (address)_locate_jvm_dll && | |
1408 base_addr+size > (address)_locate_jvm_dll) { | |
1409 ((address*)param)[0] = base_addr; | |
1410 ((address*)param)[1] = base_addr + size; | |
1411 return 1; | |
1412 } | |
1413 return 0; | |
1414 } | |
1415 | |
1416 address vm_lib_location[2]; // start and end address of jvm.dll | |
1417 | |
1418 // check if addr is inside jvm.dll | |
1419 bool os::address_is_in_vm(address addr) { | |
1420 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
1421 int pid = os::current_process_id(); | |
1422 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
1423 assert(false, "Can't find jvm module."); | |
1424 return false; | |
1425 } | |
1426 } | |
1427 | |
1428 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
1429 } | |
1430 | |
1431 // print module info; param is outputStream* | |
1432 static int _print_module(int pid, char* fname, address base, | |
1433 unsigned size, void* param) { | |
1434 if (!param) return -1; | |
1435 | |
1436 outputStream* st = (outputStream*)param; | |
1437 | |
1438 address end_addr = base + size; | |
1439 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
1440 return 0; | |
1441 } | |
1442 | |
1443 // Loads .dll/.so and | |
1444 // in case of error it checks if .dll/.so was built for the | |
1445 // same architecture as Hotspot is running on | |
1446 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
1447 { | |
1448 void * result = LoadLibrary(name); | |
1449 if (result != NULL) | |
1450 { | |
1451 return result; | |
1452 } | |
1453 | |
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1454 DWORD errcode = GetLastError(); |
0 | 1455 if (errcode == ERROR_MOD_NOT_FOUND) { |
1456 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
1457 ebuf[ebuflen-1]='\0'; | |
1458 return NULL; | |
1459 } | |
1460 | |
1461 // Parsing dll below | |
1462 // If we can read dll-info and find that dll was built | |
1463 // for an architecture other than Hotspot is running in | |
1464 // - then print to buffer "DLL was built for a different architecture" | |
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1465 // else call os::lasterror to obtain system error message |
0 | 1466 |
1467 // Read system error message into ebuf | |
1468 // It may or may not be overwritten below (in the for loop and just above) | |
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1469 lasterror(ebuf, (size_t) ebuflen); |
0 | 1470 ebuf[ebuflen-1]='\0'; |
1471 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
1472 if (file_descriptor<0) | |
1473 { | |
1474 return NULL; | |
1475 } | |
1476 | |
1477 uint32_t signature_offset; | |
1478 uint16_t lib_arch=0; | |
1479 bool failed_to_get_lib_arch= | |
1480 ( | |
1481 //Go to position 3c in the dll | |
1482 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
1483 || | |
1484 // Read loacation of signature | |
1485 (sizeof(signature_offset)!= | |
1486 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
1487 || | |
1488 //Go to COFF File Header in dll | |
1489 //that is located after"signature" (4 bytes long) | |
1490 (os::seek_to_file_offset(file_descriptor, | |
1491 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
1492 || | |
1493 //Read field that contains code of architecture | |
1494 // that dll was build for | |
1495 (sizeof(lib_arch)!= | |
1496 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
1497 ); | |
1498 | |
1499 ::close(file_descriptor); | |
1500 if (failed_to_get_lib_arch) | |
1501 { | |
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1502 // file i/o error - report os::lasterror(...) msg |
0 | 1503 return NULL; |
1504 } | |
1505 | |
1506 typedef struct | |
1507 { | |
1508 uint16_t arch_code; | |
1509 char* arch_name; | |
1510 } arch_t; | |
1511 | |
1512 static const arch_t arch_array[]={ | |
1513 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
1514 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
1515 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
1516 }; | |
1517 #if (defined _M_IA64) | |
1518 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
1519 #elif (defined _M_AMD64) | |
1520 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
1521 #elif (defined _M_IX86) | |
1522 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
1523 #else | |
1524 #error Method os::dll_load requires that one of following \ | |
1525 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
1526 #endif | |
1527 | |
1528 | |
1529 // Obtain a string for printf operation | |
1530 // lib_arch_str shall contain string what platform this .dll was built for | |
1531 // running_arch_str shall string contain what platform Hotspot was built for | |
1532 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
1533 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
1534 { | |
1535 if (lib_arch==arch_array[i].arch_code) | |
1536 lib_arch_str=arch_array[i].arch_name; | |
1537 if (running_arch==arch_array[i].arch_code) | |
1538 running_arch_str=arch_array[i].arch_name; | |
1539 } | |
1540 | |
1541 assert(running_arch_str, | |
1542 "Didn't find runing architecture code in arch_array"); | |
1543 | |
1544 // If the architure is right | |
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1545 // but some other error took place - report os::lasterror(...) msg |
0 | 1546 if (lib_arch == running_arch) |
1547 { | |
1548 return NULL; | |
1549 } | |
1550 | |
1551 if (lib_arch_str!=NULL) | |
1552 { | |
1553 ::_snprintf(ebuf, ebuflen-1, | |
1554 "Can't load %s-bit .dll on a %s-bit platform", | |
1555 lib_arch_str,running_arch_str); | |
1556 } | |
1557 else | |
1558 { | |
1559 // don't know what architecture this dll was build for | |
1560 ::_snprintf(ebuf, ebuflen-1, | |
1561 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
1562 lib_arch,running_arch_str); | |
1563 } | |
1564 | |
1565 return NULL; | |
1566 } | |
1567 | |
1568 | |
1569 void os::print_dll_info(outputStream *st) { | |
1570 int pid = os::current_process_id(); | |
1571 st->print_cr("Dynamic libraries:"); | |
1572 enumerate_modules(pid, _print_module, (void *)st); | |
1573 } | |
1574 | |
1575 void os::print_os_info(outputStream* st) { | |
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1576 st->print("OS:"); |
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1577 |
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1578 OSVERSIONINFOEX osvi; |
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1579 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
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1580 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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1581 |
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1582 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
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1583 st->print_cr("N/A"); |
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1584 return; |
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1585 } |
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1586 |
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1587 int os_vers = osvi.dwMajorVersion * 1000 + osvi.dwMinorVersion; |
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1588 if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) { |
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1589 switch (os_vers) { |
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1590 case 3051: st->print(" Windows NT 3.51"); break; |
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1591 case 4000: st->print(" Windows NT 4.0"); break; |
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1592 case 5000: st->print(" Windows 2000"); break; |
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1593 case 5001: st->print(" Windows XP"); break; |
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1594 case 5002: |
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1595 case 6000: |
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1596 case 6001: { |
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1597 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
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1598 // find out whether we are running on 64 bit processor or not. |
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1599 SYSTEM_INFO si; |
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1600 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
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1601 if (!os::Kernel32Dll::GetNativeSystemInfoAvailable()){ |
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1602 GetSystemInfo(&si); |
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|
1603 } else { |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
1604 os::Kernel32Dll::GetNativeSystemInfo(&si); |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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parents:
242
diff
changeset
|
1605 } |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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parents:
242
diff
changeset
|
1606 if (os_vers == 5002) { |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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parents:
242
diff
changeset
|
1607 if (osvi.wProductType == VER_NT_WORKSTATION && |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1608 si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1609 st->print(" Windows XP x64 Edition"); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1610 else |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1611 st->print(" Windows Server 2003 family"); |
962
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1612 } else if (os_vers == 6000) { |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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parents:
242
diff
changeset
|
1613 if (osvi.wProductType == VER_NT_WORKSTATION) |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1614 st->print(" Windows Vista"); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1615 else |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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parents:
242
diff
changeset
|
1616 st->print(" Windows Server 2008"); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1617 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1618 st->print(" , 64 bit"); |
962
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1619 } else if (os_vers == 6001) { |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1620 if (osvi.wProductType == VER_NT_WORKSTATION) { |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1621 st->print(" Windows 7"); |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1622 } else { |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1623 // Unrecognized windows, print out its major and minor versions |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1624 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1625 } |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1626 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1627 st->print(" , 64 bit"); |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1628 } else { // future os |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1629 // Unrecognized windows, print out its major and minor versions |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1630 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1631 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1632 st->print(" , 64 bit"); |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1633 } |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1634 break; |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1635 } |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1636 default: // future windows, print out its major and minor versions |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1637 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1638 } |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1639 } else { |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1640 switch (os_vers) { |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1641 case 4000: st->print(" Windows 95"); break; |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1642 case 4010: st->print(" Windows 98"); break; |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1643 case 4090: st->print(" Windows Me"); break; |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1644 default: // future windows, print out its major and minor versions |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1645 st->print(" Windows %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1646 } |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1647 } |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1648 st->print(" Build %d", osvi.dwBuildNumber); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1649 st->print(" %s", osvi.szCSDVersion); // service pack |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1650 st->cr(); |
0 | 1651 } |
1652 | |
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1653 void os::pd_print_cpu_info(outputStream* st) { |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1654 // Nothing to do for now. |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1655 } |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1656 |
0 | 1657 void os::print_memory_info(outputStream* st) { |
1658 st->print("Memory:"); | |
1659 st->print(" %dk page", os::vm_page_size()>>10); | |
1660 | |
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1661 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1662 // value if total memory is larger than 4GB |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1663 MEMORYSTATUSEX ms; |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1664 ms.dwLength = sizeof(ms); |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1665 GlobalMemoryStatusEx(&ms); |
0 | 1666 |
1667 st->print(", physical %uk", os::physical_memory() >> 10); | |
1668 st->print("(%uk free)", os::available_memory() >> 10); | |
1669 | |
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1670 st->print(", swap %uk", ms.ullTotalPageFile >> 10); |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1671 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
0 | 1672 st->cr(); |
1673 } | |
1674 | |
1675 void os::print_siginfo(outputStream *st, void *siginfo) { | |
1676 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
1677 st->print("siginfo:"); | |
1678 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
1679 | |
1680 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
1681 er->NumberParameters >= 2) { | |
1682 switch (er->ExceptionInformation[0]) { | |
1683 case 0: st->print(", reading address"); break; | |
1684 case 1: st->print(", writing address"); break; | |
1685 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
1686 er->ExceptionInformation[0]); | |
1687 } | |
1688 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
1689 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
1690 er->NumberParameters >= 2 && UseSharedSpaces) { | |
1691 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
1692 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
1693 st->print("\n\nError accessing class data sharing archive." \ | |
1694 " Mapped file inaccessible during execution, " \ | |
1695 " possible disk/network problem."); | |
1696 } | |
1697 } else { | |
1698 int num = er->NumberParameters; | |
1699 if (num > 0) { | |
1700 st->print(", ExceptionInformation="); | |
1701 for (int i = 0; i < num; i++) { | |
1702 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
1703 } | |
1704 } | |
1705 } | |
1706 st->cr(); | |
1707 } | |
1708 | |
1709 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
1710 // do nothing | |
1711 } | |
1712 | |
1713 static char saved_jvm_path[MAX_PATH] = {0}; | |
1714 | |
1715 // Find the full path to the current module, jvm.dll or jvm_g.dll | |
1716 void os::jvm_path(char *buf, jint buflen) { | |
1717 // Error checking. | |
1718 if (buflen < MAX_PATH) { | |
1719 assert(false, "must use a large-enough buffer"); | |
1720 buf[0] = '\0'; | |
1721 return; | |
1722 } | |
1723 // Lazy resolve the path to current module. | |
1724 if (saved_jvm_path[0] != 0) { | |
1725 strcpy(buf, saved_jvm_path); | |
1726 return; | |
1727 } | |
1728 | |
1985 | 1729 buf[0] = '\0'; |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
1730 if (Arguments::created_by_gamma_launcher()) { |
1985 | 1731 // Support for the gamma launcher. Check for an |
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
2023
diff
changeset
|
1732 // JAVA_HOME environment variable |
1985 | 1733 // and fix up the path so it looks like |
1734 // libjvm.so is installed there (append a fake suffix | |
1735 // hotspot/libjvm.so). | |
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
2023
diff
changeset
|
1736 char* java_home_var = ::getenv("JAVA_HOME"); |
1985 | 1737 if (java_home_var != NULL && java_home_var[0] != 0) { |
1738 | |
1739 strncpy(buf, java_home_var, buflen); | |
1740 | |
1741 // determine if this is a legacy image or modules image | |
1742 // modules image doesn't have "jre" subdirectory | |
1743 size_t len = strlen(buf); | |
1744 char* jrebin_p = buf + len; | |
1745 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
1746 if (0 != _access(buf, 0)) { | |
1747 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
1748 } | |
1749 len = strlen(buf); | |
1750 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
1751 } | |
1752 } | |
1753 | |
1754 if(buf[0] == '\0') { | |
0 | 1755 GetModuleFileName(vm_lib_handle, buf, buflen); |
1985 | 1756 } |
0 | 1757 strcpy(saved_jvm_path, buf); |
1758 } | |
1759 | |
1760 | |
1761 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
1762 #ifndef _WIN64 | |
1763 st->print("_"); | |
1764 #endif | |
1765 } | |
1766 | |
1767 | |
1768 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
1769 #ifndef _WIN64 | |
1770 st->print("@%d", args_size * sizeof(int)); | |
1771 #endif | |
1772 } | |
1773 | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1774 // This method is a copy of JDK's sysGetLastErrorString |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1775 // from src/windows/hpi/src/system_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1776 |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1777 size_t os::lasterror(char* buf, size_t len) { |
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1778 DWORD errval; |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1779 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1780 if ((errval = GetLastError()) != 0) { |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1781 // DOS error |
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1782 size_t n = (size_t)FormatMessage( |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1783 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1784 NULL, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1785 errval, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1786 0, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1787 buf, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1788 (DWORD)len, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1789 NULL); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1790 if (n > 3) { |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1791 // Drop final '.', CR, LF |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1792 if (buf[n - 1] == '\n') n--; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1793 if (buf[n - 1] == '\r') n--; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1794 if (buf[n - 1] == '.') n--; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1795 buf[n] = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1796 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1797 return n; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1798 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1799 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1800 if (errno != 0) { |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1801 // C runtime error that has no corresponding DOS error code |
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1802 const char* s = strerror(errno); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1803 size_t n = strlen(s); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1804 if (n >= len) n = len - 1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1805 strncpy(buf, s, n); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1806 buf[n] = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1807 return n; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1808 } |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1809 |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1810 return 0; |
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1811 } |
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1812 |
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1813 int os::get_last_error() { |
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1814 DWORD error = GetLastError(); |
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1815 if (error == 0) |
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1816 error = errno; |
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1817 return (int)error; |
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1818 } |
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1819 |
0 | 1820 // sun.misc.Signal |
1821 // NOTE that this is a workaround for an apparent kernel bug where if | |
1822 // a signal handler for SIGBREAK is installed then that signal handler | |
1823 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
1824 // See bug 4416763. | |
1825 static void (*sigbreakHandler)(int) = NULL; | |
1826 | |
1827 static void UserHandler(int sig, void *siginfo, void *context) { | |
1828 os::signal_notify(sig); | |
1829 // We need to reinstate the signal handler each time... | |
1830 os::signal(sig, (void*)UserHandler); | |
1831 } | |
1832 | |
1833 void* os::user_handler() { | |
1834 return (void*) UserHandler; | |
1835 } | |
1836 | |
1837 void* os::signal(int signal_number, void* handler) { | |
1838 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
1839 void (*oldHandler)(int) = sigbreakHandler; | |
1840 sigbreakHandler = (void (*)(int)) handler; | |
1841 return (void*) oldHandler; | |
1842 } else { | |
1843 return (void*)::signal(signal_number, (void (*)(int))handler); | |
1844 } | |
1845 } | |
1846 | |
1847 void os::signal_raise(int signal_number) { | |
1848 raise(signal_number); | |
1849 } | |
1850 | |
1851 // The Win32 C runtime library maps all console control events other than ^C | |
1852 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
1853 // logoff, and shutdown events. We therefore install our own console handler | |
1854 // that raises SIGTERM for the latter cases. | |
1855 // | |
1856 static BOOL WINAPI consoleHandler(DWORD event) { | |
1857 switch(event) { | |
1858 case CTRL_C_EVENT: | |
1859 if (is_error_reported()) { | |
1860 // Ctrl-C is pressed during error reporting, likely because the error | |
1861 // handler fails to abort. Let VM die immediately. | |
1862 os::die(); | |
1863 } | |
1864 | |
1865 os::signal_raise(SIGINT); | |
1866 return TRUE; | |
1867 break; | |
1868 case CTRL_BREAK_EVENT: | |
1869 if (sigbreakHandler != NULL) { | |
1870 (*sigbreakHandler)(SIGBREAK); | |
1871 } | |
1872 return TRUE; | |
1873 break; | |
1874 case CTRL_CLOSE_EVENT: | |
1875 case CTRL_LOGOFF_EVENT: | |
1876 case CTRL_SHUTDOWN_EVENT: | |
1877 os::signal_raise(SIGTERM); | |
1878 return TRUE; | |
1879 break; | |
1880 default: | |
1881 break; | |
1882 } | |
1883 return FALSE; | |
1884 } | |
1885 | |
1886 /* | |
1887 * The following code is moved from os.cpp for making this | |
1888 * code platform specific, which it is by its very nature. | |
1889 */ | |
1890 | |
1891 // Return maximum OS signal used + 1 for internal use only | |
1892 // Used as exit signal for signal_thread | |
1893 int os::sigexitnum_pd(){ | |
1894 return NSIG; | |
1895 } | |
1896 | |
1897 // a counter for each possible signal value, including signal_thread exit signal | |
1898 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
1899 static HANDLE sig_sem; | |
1900 | |
1901 void os::signal_init_pd() { | |
1902 // Initialize signal structures | |
1903 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
1904 | |
1905 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
1906 | |
1907 // Programs embedding the VM do not want it to attempt to receive | |
1908 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
1909 // shutdown hooks mechanism introduced in 1.3. For example, when | |
1910 // the VM is run as part of a Windows NT service (i.e., a servlet | |
1911 // engine in a web server), the correct behavior is for any console | |
1912 // control handler to return FALSE, not TRUE, because the OS's | |
1913 // "final" handler for such events allows the process to continue if | |
1914 // it is a service (while terminating it if it is not a service). | |
1915 // To make this behavior uniform and the mechanism simpler, we | |
1916 // completely disable the VM's usage of these console events if -Xrs | |
1917 // (=ReduceSignalUsage) is specified. This means, for example, that | |
1918 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
1919 // case. See bugs 4323062, 4345157, and related bugs. | |
1920 | |
1921 if (!ReduceSignalUsage) { | |
1922 // Add a CTRL-C handler | |
1923 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
1924 } | |
1925 } | |
1926 | |
1927 void os::signal_notify(int signal_number) { | |
1928 BOOL ret; | |
1929 | |
1930 Atomic::inc(&pending_signals[signal_number]); | |
1931 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
1932 assert(ret != 0, "ReleaseSemaphore() failed"); | |
1933 } | |
1934 | |
1935 static int check_pending_signals(bool wait_for_signal) { | |
1936 DWORD ret; | |
1937 while (true) { | |
1938 for (int i = 0; i < NSIG + 1; i++) { | |
1939 jint n = pending_signals[i]; | |
1940 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
1941 return i; | |
1942 } | |
1943 } | |
1944 if (!wait_for_signal) { | |
1945 return -1; | |
1946 } | |
1947 | |
1948 JavaThread *thread = JavaThread::current(); | |
1949 | |
1950 ThreadBlockInVM tbivm(thread); | |
1951 | |
1952 bool threadIsSuspended; | |
1953 do { | |
1954 thread->set_suspend_equivalent(); | |
1955 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
1956 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
1957 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
1958 | |
1959 // were we externally suspended while we were waiting? | |
1960 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
1961 if (threadIsSuspended) { | |
1962 // | |
1963 // The semaphore has been incremented, but while we were waiting | |
1964 // another thread suspended us. We don't want to continue running | |
1965 // while suspended because that would surprise the thread that | |
1966 // suspended us. | |
1967 // | |
1968 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
1969 assert(ret != 0, "ReleaseSemaphore() failed"); | |
1970 | |
1971 thread->java_suspend_self(); | |
1972 } | |
1973 } while (threadIsSuspended); | |
1974 } | |
1975 } | |
1976 | |
1977 int os::signal_lookup() { | |
1978 return check_pending_signals(false); | |
1979 } | |
1980 | |
1981 int os::signal_wait() { | |
1982 return check_pending_signals(true); | |
1983 } | |
1984 | |
1985 // Implicit OS exception handling | |
1986 | |
1987 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
1988 JavaThread* thread = JavaThread::current(); | |
1989 // Save pc in thread | |
1990 #ifdef _M_IA64 | |
1991 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->StIIP); | |
1992 // Set pc to handler | |
1993 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
1994 #elif _M_AMD64 | |
1995 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Rip); | |
1996 // Set pc to handler | |
1997 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
1998 #else | |
1999 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Eip); | |
2000 // Set pc to handler | |
2001 exceptionInfo->ContextRecord->Eip = (LONG)handler; | |
2002 #endif | |
2003 | |
2004 // Continue the execution | |
2005 return EXCEPTION_CONTINUE_EXECUTION; | |
2006 } | |
2007 | |
2008 | |
2009 // Used for PostMortemDump | |
2010 extern "C" void safepoints(); | |
2011 extern "C" void find(int x); | |
2012 extern "C" void events(); | |
2013 | |
2014 // According to Windows API documentation, an illegal instruction sequence should generate | |
2015 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
2016 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
2017 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
2018 | |
2019 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
2020 | |
2021 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
2022 // Once a system header becomes available, the "real" define should be | |
2023 // included or copied here. | |
2024 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
2025 | |
2026 #define def_excpt(val) #val, val | |
2027 | |
2028 struct siglabel { | |
2029 char *name; | |
2030 int number; | |
2031 }; | |
2032 | |
2068
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2033 // All Visual C++ exceptions thrown from code generated by the Microsoft Visual |
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2034 // C++ compiler contain this error code. Because this is a compiler-generated |
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2035 // error, the code is not listed in the Win32 API header files. |
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2036 // The code is actually a cryptic mnemonic device, with the initial "E" |
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2037 // standing for "exception" and the final 3 bytes (0x6D7363) representing the |
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2038 // ASCII values of "msc". |
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2039 |
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2040 #define EXCEPTION_UNCAUGHT_CXX_EXCEPTION 0xE06D7363 |
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2041 |
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2042 |
0 | 2043 struct siglabel exceptlabels[] = { |
2044 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
2045 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
2046 def_excpt(EXCEPTION_BREAKPOINT), | |
2047 def_excpt(EXCEPTION_SINGLE_STEP), | |
2048 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
2049 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
2050 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
2051 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
2052 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
2053 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
2054 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
2055 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
2056 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
2057 def_excpt(EXCEPTION_INT_OVERFLOW), | |
2058 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
2059 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
2060 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
2061 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
2062 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
2063 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
2064 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
2065 def_excpt(EXCEPTION_GUARD_PAGE), | |
2066 def_excpt(EXCEPTION_INVALID_HANDLE), | |
2068
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2067 def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION), |
0 | 2068 NULL, 0 |
2069 }; | |
2070 | |
2071 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
2072 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
2073 if (exceptlabels[i].number == exception_code) { | |
2074 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
2075 return buf; | |
2076 } | |
2077 } | |
2078 | |
2079 return NULL; | |
2080 } | |
2081 | |
2082 //----------------------------------------------------------------------------- | |
2083 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2084 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
2085 // (division by zero is handled explicitly) | |
2086 #ifdef _M_IA64 | |
2087 assert(0, "Fix Handle_IDiv_Exception"); | |
2088 #elif _M_AMD64 | |
2089 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
2090 address pc = (address)ctx->Rip; | |
2091 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
2092 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
2093 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
2094 // set correct result values and continue after idiv instruction | |
2095 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
2096 ctx->Rax = (DWORD)min_jint; // result | |
2097 ctx->Rdx = (DWORD)0; // remainder | |
2098 // Continue the execution | |
2099 #else | |
2100 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
2101 address pc = (address)ctx->Eip; | |
2102 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
2103 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
2104 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
2105 // set correct result values and continue after idiv instruction | |
2106 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
2107 ctx->Eax = (DWORD)min_jint; // result | |
2108 ctx->Edx = (DWORD)0; // remainder | |
2109 // Continue the execution | |
2110 #endif | |
2111 return EXCEPTION_CONTINUE_EXECUTION; | |
2112 } | |
2113 | |
2114 #ifndef _WIN64 | |
2115 //----------------------------------------------------------------------------- | |
2116 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
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2117 // handle exception caused by native method modifying control word |
0 | 2118 PCONTEXT ctx = exceptionInfo->ContextRecord; |
2119 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2120 | |
2121 switch (exception_code) { | |
2122 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
2123 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
2124 case EXCEPTION_FLT_INEXACT_RESULT: | |
2125 case EXCEPTION_FLT_INVALID_OPERATION: | |
2126 case EXCEPTION_FLT_OVERFLOW: | |
2127 case EXCEPTION_FLT_STACK_CHECK: | |
2128 case EXCEPTION_FLT_UNDERFLOW: | |
2129 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
2130 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
2131 // Restore FPCW and mask out FLT exceptions | |
2132 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
2133 // Mask out pending FLT exceptions | |
2134 ctx->FloatSave.StatusWord &= 0xffffff00; | |
2135 return EXCEPTION_CONTINUE_EXECUTION; | |
2136 } | |
2137 } | |
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2138 |
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2139 if (prev_uef_handler != NULL) { |
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2140 // We didn't handle this exception so pass it to the previous |
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2141 // UnhandledExceptionFilter. |
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2142 return (prev_uef_handler)(exceptionInfo); |
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2143 } |
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2144 |
0 | 2145 return EXCEPTION_CONTINUE_SEARCH; |
2146 } | |
2147 #else //_WIN64 | |
2148 /* | |
2149 On Windows, the mxcsr control bits are non-volatile across calls | |
2150 See also CR 6192333 | |
2151 If EXCEPTION_FLT_* happened after some native method modified | |
2152 mxcsr - it is not a jvm fault. | |
2153 However should we decide to restore of mxcsr after a faulty | |
2154 native method we can uncomment following code | |
2155 jint MxCsr = INITIAL_MXCSR; | |
2156 // we can't use StubRoutines::addr_mxcsr_std() | |
2157 // because in Win64 mxcsr is not saved there | |
2158 if (MxCsr != ctx->MxCsr) { | |
2159 ctx->MxCsr = MxCsr; | |
2160 return EXCEPTION_CONTINUE_EXECUTION; | |
2161 } | |
2162 | |
2163 */ | |
2164 #endif //_WIN64 | |
2165 | |
2166 | |
2167 // Fatal error reporting is single threaded so we can make this a | |
2168 // static and preallocated. If it's more than MAX_PATH silently ignore | |
2169 // it. | |
2170 static char saved_error_file[MAX_PATH] = {0}; | |
2171 | |
2172 void os::set_error_file(const char *logfile) { | |
2173 if (strlen(logfile) <= MAX_PATH) { | |
2174 strncpy(saved_error_file, logfile, MAX_PATH); | |
2175 } | |
2176 } | |
2177 | |
2178 static inline void report_error(Thread* t, DWORD exception_code, | |
2179 address addr, void* siginfo, void* context) { | |
2180 VMError err(t, exception_code, addr, siginfo, context); | |
2181 err.report_and_die(); | |
2182 | |
2183 // If UseOsErrorReporting, this will return here and save the error file | |
2184 // somewhere where we can find it in the minidump. | |
2185 } | |
2186 | |
2187 //----------------------------------------------------------------------------- | |
2188 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2189 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
2190 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2191 #ifdef _M_IA64 | |
2192 address pc = (address) exceptionInfo->ContextRecord->StIIP; | |
2193 #elif _M_AMD64 | |
2194 address pc = (address) exceptionInfo->ContextRecord->Rip; | |
2195 #else | |
2196 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
2197 #endif | |
2198 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
2199 | |
2200 #ifndef _WIN64 | |
2201 // Execution protection violation - win32 running on AMD64 only | |
2202 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
2203 // This is safe to do because we have a new/unique ExceptionInformation | |
2204 // code for this condition. | |
2205 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2206 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2207 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
2208 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2209 | |
2210 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
2211 int page_size = os::vm_page_size(); | |
2212 | |
2213 // Make sure the pc and the faulting address are sane. | |
2214 // | |
2215 // If an instruction spans a page boundary, and the page containing | |
2216 // the beginning of the instruction is executable but the following | |
2217 // page is not, the pc and the faulting address might be slightly | |
2218 // different - we still want to unguard the 2nd page in this case. | |
2219 // | |
2220 // 15 bytes seems to be a (very) safe value for max instruction size. | |
2221 bool pc_is_near_addr = | |
2222 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
2223 bool instr_spans_page_boundary = | |
2224 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
2225 (intptr_t) page_size) > 0); | |
2226 | |
2227 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
2228 static volatile address last_addr = | |
2229 (address) os::non_memory_address_word(); | |
2230 | |
2231 // In conservative mode, don't unguard unless the address is in the VM | |
2232 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
2233 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
2234 | |
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2235 // Set memory to RWX and retry |
0 | 2236 address page_start = |
2237 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
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2238 bool res = os::protect_memory((char*) page_start, page_size, |
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2239 os::MEM_PROT_RWX); |
0 | 2240 |
2241 if (PrintMiscellaneous && Verbose) { | |
2242 char buf[256]; | |
2243 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
2244 "at " INTPTR_FORMAT | |
2245 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
2246 page_start, (res ? "success" : strerror(errno))); | |
2247 tty->print_raw_cr(buf); | |
2248 } | |
2249 | |
2250 // Set last_addr so if we fault again at the same address, we don't | |
2251 // end up in an endless loop. | |
2252 // | |
2253 // There are two potential complications here. Two threads trapping | |
2254 // at the same address at the same time could cause one of the | |
2255 // threads to think it already unguarded, and abort the VM. Likely | |
2256 // very rare. | |
2257 // | |
2258 // The other race involves two threads alternately trapping at | |
2259 // different addresses and failing to unguard the page, resulting in | |
2260 // an endless loop. This condition is probably even more unlikely | |
2261 // than the first. | |
2262 // | |
2263 // Although both cases could be avoided by using locks or thread | |
2264 // local last_addr, these solutions are unnecessary complication: | |
2265 // this handler is a best-effort safety net, not a complete solution. | |
2266 // It is disabled by default and should only be used as a workaround | |
2267 // in case we missed any no-execute-unsafe VM code. | |
2268 | |
2269 last_addr = addr; | |
2270 | |
2271 return EXCEPTION_CONTINUE_EXECUTION; | |
2272 } | |
2273 } | |
2274 | |
2275 // Last unguard failed or not unguarding | |
2276 tty->print_raw_cr("Execution protection violation"); | |
2277 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
2278 exceptionInfo->ContextRecord); | |
2279 return EXCEPTION_CONTINUE_SEARCH; | |
2280 } | |
2281 } | |
2282 #endif // _WIN64 | |
2283 | |
2284 // Check to see if we caught the safepoint code in the | |
2285 // process of write protecting the memory serialization page. | |
2286 // It write enables the page immediately after protecting it | |
2287 // so just return. | |
2288 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
2289 JavaThread* thread = (JavaThread*) t; | |
2290 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2291 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2292 if ( os::is_memory_serialize_page(thread, addr) ) { | |
2293 // Block current thread until the memory serialize page permission restored. | |
2294 os::block_on_serialize_page_trap(); | |
2295 return EXCEPTION_CONTINUE_EXECUTION; | |
2296 } | |
2297 } | |
2298 | |
2299 if (t != NULL && t->is_Java_thread()) { | |
2300 JavaThread* thread = (JavaThread*) t; | |
2301 bool in_java = thread->thread_state() == _thread_in_Java; | |
2302 | |
2303 // Handle potential stack overflows up front. | |
2304 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
2305 if (os::uses_stack_guard_pages()) { | |
2306 #ifdef _M_IA64 | |
2307 // | |
2308 // If it's a legal stack address continue, Windows will map it in. | |
2309 // | |
2310 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2311 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2312 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) | |
2313 return EXCEPTION_CONTINUE_EXECUTION; | |
2314 | |
2315 // The register save area is the same size as the memory stack | |
2316 // and starts at the page just above the start of the memory stack. | |
2317 // If we get a fault in this area, we've run out of register | |
2318 // stack. If we are in java, try throwing a stack overflow exception. | |
2319 if (addr > thread->stack_base() && | |
2320 addr <= (thread->stack_base()+thread->stack_size()) ) { | |
2321 char buf[256]; | |
2322 jio_snprintf(buf, sizeof(buf), | |
2323 "Register stack overflow, addr:%p, stack_base:%p\n", | |
2324 addr, thread->stack_base() ); | |
2325 tty->print_raw_cr(buf); | |
2326 // If not in java code, return and hope for the best. | |
2327 return in_java ? Handle_Exception(exceptionInfo, | |
2328 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
2329 : EXCEPTION_CONTINUE_EXECUTION; | |
2330 } | |
2331 #endif | |
2332 if (thread->stack_yellow_zone_enabled()) { | |
2333 // Yellow zone violation. The o/s has unprotected the first yellow | |
2334 // zone page for us. Note: must call disable_stack_yellow_zone to | |
2335 // update the enabled status, even if the zone contains only one page. | |
2336 thread->disable_stack_yellow_zone(); | |
2337 // If not in java code, return and hope for the best. | |
2338 return in_java ? Handle_Exception(exceptionInfo, | |
2339 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
2340 : EXCEPTION_CONTINUE_EXECUTION; | |
2341 } else { | |
2342 // Fatal red zone violation. | |
2343 thread->disable_stack_red_zone(); | |
2344 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
2345 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2346 exceptionInfo->ContextRecord); | |
2347 return EXCEPTION_CONTINUE_SEARCH; | |
2348 } | |
2349 } else if (in_java) { | |
2350 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
2351 // a one-time-only guard page, which it has released to us. The next | |
2352 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
2353 return Handle_Exception(exceptionInfo, | |
2354 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2355 } else { | |
2356 // Can only return and hope for the best. Further stack growth will | |
2357 // result in an ACCESS_VIOLATION. | |
2358 return EXCEPTION_CONTINUE_EXECUTION; | |
2359 } | |
2360 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2361 // Either stack overflow or null pointer exception. | |
2362 if (in_java) { | |
2363 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2364 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2365 address stack_end = thread->stack_base() - thread->stack_size(); | |
2366 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
2367 // Stack overflow. | |
2368 assert(!os::uses_stack_guard_pages(), | |
2369 "should be caught by red zone code above."); | |
2370 return Handle_Exception(exceptionInfo, | |
2371 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2372 } | |
2373 // | |
2374 // Check for safepoint polling and implicit null | |
2375 // We only expect null pointers in the stubs (vtable) | |
2376 // the rest are checked explicitly now. | |
2377 // | |
2378 CodeBlob* cb = CodeCache::find_blob(pc); | |
2379 if (cb != NULL) { | |
2380 if (os::is_poll_address(addr)) { | |
2381 address stub = SharedRuntime::get_poll_stub(pc); | |
2382 return Handle_Exception(exceptionInfo, stub); | |
2383 } | |
2384 } | |
2385 { | |
2386 #ifdef _WIN64 | |
2387 // | |
2388 // If it's a legal stack address map the entire region in | |
2389 // | |
2390 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2391 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2392 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
2393 addr = (address)((uintptr_t)addr & | |
2394 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
656 | 2395 os::commit_memory((char *)addr, thread->stack_base() - addr, |
2396 false ); | |
0 | 2397 return EXCEPTION_CONTINUE_EXECUTION; |
2398 } | |
2399 else | |
2400 #endif | |
2401 { | |
2402 // Null pointer exception. | |
2403 #ifdef _M_IA64 | |
2404 // We catch register stack overflows in compiled code by doing | |
2405 // an explicit compare and executing a st8(G0, G0) if the | |
2406 // BSP enters into our guard area. We test for the overflow | |
2407 // condition and fall into the normal null pointer exception | |
2408 // code if BSP hasn't overflowed. | |
2409 if ( in_java ) { | |
2410 if(thread->register_stack_overflow()) { | |
2411 assert((address)exceptionInfo->ContextRecord->IntS3 == | |
2412 thread->register_stack_limit(), | |
2413 "GR7 doesn't contain register_stack_limit"); | |
2414 // Disable the yellow zone which sets the state that | |
2415 // we've got a stack overflow problem. | |
2416 if (thread->stack_yellow_zone_enabled()) { | |
2417 thread->disable_stack_yellow_zone(); | |
2418 } | |
2419 // Give us some room to process the exception | |
2420 thread->disable_register_stack_guard(); | |
2421 // Update GR7 with the new limit so we can continue running | |
2422 // compiled code. | |
2423 exceptionInfo->ContextRecord->IntS3 = | |
2424 (ULONGLONG)thread->register_stack_limit(); | |
2425 return Handle_Exception(exceptionInfo, | |
2426 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2427 } else { | |
2428 // | |
2429 // Check for implicit null | |
2430 // We only expect null pointers in the stubs (vtable) | |
2431 // the rest are checked explicitly now. | |
2432 // | |
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2433 if (((uintptr_t)addr) < os::vm_page_size() ) { |
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2434 // an access to the first page of VM--assume it is a null pointer |
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2435 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2436 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
0 | 2437 } |
2438 } | |
2439 } // in_java | |
2440 | |
2441 // IA64 doesn't use implicit null checking yet. So we shouldn't | |
2442 // get here. | |
2443 tty->print_raw_cr("Access violation, possible null pointer exception"); | |
2444 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2445 exceptionInfo->ContextRecord); | |
2446 return EXCEPTION_CONTINUE_SEARCH; | |
2447 #else /* !IA64 */ | |
2448 | |
2449 // Windows 98 reports faulting addresses incorrectly | |
2450 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
2451 !os::win32::is_nt()) { | |
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2452 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2453 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
0 | 2454 } |
2455 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2456 exceptionInfo->ContextRecord); | |
2457 return EXCEPTION_CONTINUE_SEARCH; | |
2458 #endif | |
2459 } | |
2460 } | |
2461 } | |
2462 | |
2463 #ifdef _WIN64 | |
2464 // Special care for fast JNI field accessors. | |
2465 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
2466 // in and the heap gets shrunk before the field access. | |
2467 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2468 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
2469 if (addr != (address)-1) { | |
2470 return Handle_Exception(exceptionInfo, addr); | |
2471 } | |
2472 } | |
2473 #endif | |
2474 | |
2475 #ifdef _WIN64 | |
2476 // Windows will sometimes generate an access violation | |
2477 // when we call malloc. Since we use VectoredExceptions | |
2478 // on 64 bit platforms, we see this exception. We must | |
2479 // pass this exception on so Windows can recover. | |
2480 // We check to see if the pc of the fault is in NTDLL.DLL | |
2481 // if so, we pass control on to Windows for handling. | |
2482 if (UseVectoredExceptions && _addr_in_ntdll(pc)) return EXCEPTION_CONTINUE_SEARCH; | |
2483 #endif | |
2484 | |
2485 // Stack overflow or null pointer exception in native code. | |
2486 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2487 exceptionInfo->ContextRecord); | |
2488 return EXCEPTION_CONTINUE_SEARCH; | |
2489 } | |
2490 | |
2491 if (in_java) { | |
2492 switch (exception_code) { | |
2493 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
2494 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
2495 | |
2496 case EXCEPTION_INT_OVERFLOW: | |
2497 return Handle_IDiv_Exception(exceptionInfo); | |
2498 | |
2499 } // switch | |
2500 } | |
2501 #ifndef _WIN64 | |
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2502 if (((thread->thread_state() == _thread_in_Java) || |
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2503 (thread->thread_state() == _thread_in_native)) && |
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2504 exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION) |
0 | 2505 { |
2506 LONG result=Handle_FLT_Exception(exceptionInfo); | |
2507 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
2508 } | |
2509 #endif //_WIN64 | |
2510 } | |
2511 | |
2512 if (exception_code != EXCEPTION_BREAKPOINT) { | |
2513 #ifndef _WIN64 | |
2514 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2515 exceptionInfo->ContextRecord); | |
2516 #else | |
2517 // Itanium Windows uses a VectoredExceptionHandler | |
2518 // Which means that C++ programatic exception handlers (try/except) | |
2519 // will get here. Continue the search for the right except block if | |
2520 // the exception code is not a fatal code. | |
2521 switch ( exception_code ) { | |
2522 case EXCEPTION_ACCESS_VIOLATION: | |
2523 case EXCEPTION_STACK_OVERFLOW: | |
2524 case EXCEPTION_ILLEGAL_INSTRUCTION: | |
2525 case EXCEPTION_ILLEGAL_INSTRUCTION_2: | |
2526 case EXCEPTION_INT_OVERFLOW: | |
2527 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
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2528 case EXCEPTION_UNCAUGHT_CXX_EXCEPTION: |
0 | 2529 { report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, |
2530 exceptionInfo->ContextRecord); | |
2531 } | |
2532 break; | |
2533 default: | |
2534 break; | |
2535 } | |
2536 #endif | |
2537 } | |
2538 return EXCEPTION_CONTINUE_SEARCH; | |
2539 } | |
2540 | |
2541 #ifndef _WIN64 | |
2542 // Special care for fast JNI accessors. | |
2543 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
2544 // the heap gets shrunk before the field access. | |
2545 // Need to install our own structured exception handler since native code may | |
2546 // install its own. | |
2547 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2548 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2549 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2550 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
2551 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
2552 if (addr != (address)-1) { | |
2553 return Handle_Exception(exceptionInfo, addr); | |
2554 } | |
2555 } | |
2556 return EXCEPTION_CONTINUE_SEARCH; | |
2557 } | |
2558 | |
2559 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
2560 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
2561 __try { \ | |
2562 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
2563 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
2564 } \ | |
2565 return 0; \ | |
2566 } | |
2567 | |
2568 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
2569 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
2570 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
2571 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
2572 DEFINE_FAST_GETFIELD(jint, int, Int) | |
2573 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
2574 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
2575 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
2576 | |
2577 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
2578 switch (type) { | |
2579 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
2580 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
2581 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
2582 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
2583 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
2584 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
2585 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
2586 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
2587 default: ShouldNotReachHere(); | |
2588 } | |
2589 return (address)-1; | |
2590 } | |
2591 #endif | |
2592 | |
2593 // Virtual Memory | |
2594 | |
2595 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
2596 int os::vm_allocation_granularity() { | |
2597 return os::win32::vm_allocation_granularity(); | |
2598 } | |
2599 | |
2600 // Windows large page support is available on Windows 2003. In order to use | |
2601 // large page memory, the administrator must first assign additional privilege | |
2602 // to the user: | |
2603 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
2604 // + select Local Policies -> User Rights Assignment | |
2605 // + double click "Lock pages in memory", add users and/or groups | |
2606 // + reboot | |
2607 // Note the above steps are needed for administrator as well, as administrators | |
2608 // by default do not have the privilege to lock pages in memory. | |
2609 // | |
2610 // Note about Windows 2003: although the API supports committing large page | |
2611 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
2612 // scenario, I found through experiment it only uses large page if the entire | |
2613 // memory region is reserved and committed in a single VirtualAlloc() call. | |
2614 // This makes Windows large page support more or less like Solaris ISM, in | |
2615 // that the entire heap must be committed upfront. This probably will change | |
2616 // in the future, if so the code below needs to be revisited. | |
2617 | |
2618 #ifndef MEM_LARGE_PAGES | |
2619 #define MEM_LARGE_PAGES 0x20000000 | |
2620 #endif | |
2621 | |
2622 static HANDLE _hProcess; | |
2623 static HANDLE _hToken; | |
2624 | |
3885 | 2625 // Container for NUMA node list info |
2626 class NUMANodeListHolder { | |
2627 private: | |
2628 int *_numa_used_node_list; // allocated below | |
2629 int _numa_used_node_count; | |
2630 | |
2631 void free_node_list() { | |
2632 if (_numa_used_node_list != NULL) { | |
2633 FREE_C_HEAP_ARRAY(int, _numa_used_node_list); | |
2634 } | |
2635 } | |
2636 | |
2637 public: | |
2638 NUMANodeListHolder() { | |
2639 _numa_used_node_count = 0; | |
2640 _numa_used_node_list = NULL; | |
2641 // do rest of initialization in build routine (after function pointers are set up) | |
2642 } | |
2643 | |
2644 ~NUMANodeListHolder() { | |
2645 free_node_list(); | |
2646 } | |
2647 | |
2648 bool build() { | |
2649 DWORD_PTR proc_aff_mask; | |
2650 DWORD_PTR sys_aff_mask; | |
2651 if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false; | |
2652 ULONG highest_node_number; | |
2653 if (!os::Kernel32Dll::GetNumaHighestNodeNumber(&highest_node_number)) return false; | |
2654 free_node_list(); | |
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2655 _numa_used_node_list = NEW_C_HEAP_ARRAY(int, highest_node_number + 1); |
3885 | 2656 for (unsigned int i = 0; i <= highest_node_number; i++) { |
2657 ULONGLONG proc_mask_numa_node; | |
2658 if (!os::Kernel32Dll::GetNumaNodeProcessorMask(i, &proc_mask_numa_node)) return false; | |
2659 if ((proc_aff_mask & proc_mask_numa_node)!=0) { | |
2660 _numa_used_node_list[_numa_used_node_count++] = i; | |
2661 } | |
2662 } | |
2663 return (_numa_used_node_count > 1); | |
2664 } | |
2665 | |
2666 int get_count() {return _numa_used_node_count;} | |
2667 int get_node_list_entry(int n) { | |
2668 // for indexes out of range, returns -1 | |
2669 return (n < _numa_used_node_count ? _numa_used_node_list[n] : -1); | |
2670 } | |
2671 | |
2672 } numa_node_list_holder; | |
2673 | |
2674 | |
2675 | |
0 | 2676 static size_t _large_page_size = 0; |
2677 | |
2678 static bool resolve_functions_for_large_page_init() { | |
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2679 return os::Kernel32Dll::GetLargePageMinimumAvailable() && |
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2680 os::Advapi32Dll::AdvapiAvailable(); |
0 | 2681 } |
2682 | |
2683 static bool request_lock_memory_privilege() { | |
2684 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
2685 os::current_process_id()); | |
2686 | |
2687 LUID luid; | |
2688 if (_hProcess != NULL && | |
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2689 os::Advapi32Dll::OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && |
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2690 os::Advapi32Dll::LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { |
0 | 2691 |
2692 TOKEN_PRIVILEGES tp; | |
2693 tp.PrivilegeCount = 1; | |
2694 tp.Privileges[0].Luid = luid; | |
2695 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
2696 | |
2697 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
2698 // privilege. Check GetLastError() too. See MSDN document. | |
3833
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2699 if (os::Advapi32Dll::AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && |
0 | 2700 (GetLastError() == ERROR_SUCCESS)) { |
2701 return true; | |
2702 } | |
2703 } | |
2704 | |
2705 return false; | |
2706 } | |
2707 | |
2708 static void cleanup_after_large_page_init() { | |
2709 if (_hProcess) CloseHandle(_hProcess); | |
2710 _hProcess = NULL; | |
2711 if (_hToken) CloseHandle(_hToken); | |
2712 _hToken = NULL; | |
2713 } | |
2714 | |
3885 | 2715 static bool numa_interleaving_init() { |
2716 bool success = false; | |
2717 bool use_numa_interleaving_specified = !FLAG_IS_DEFAULT(UseNUMAInterleaving); | |
2718 | |
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2719 // print a warning if UseNUMAInterleaving flag is specified on command line |
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2720 bool warn_on_failure = use_numa_interleaving_specified; |
3885 | 2721 # define WARN(msg) if (warn_on_failure) { warning(msg); } |
2722 | |
2723 // NUMAInterleaveGranularity cannot be less than vm_allocation_granularity (or _large_page_size if using large pages) | |
2724 size_t min_interleave_granularity = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
2725 NUMAInterleaveGranularity = align_size_up(NUMAInterleaveGranularity, min_interleave_granularity); | |
2726 | |
2727 if (os::Kernel32Dll::NumaCallsAvailable()) { | |
2728 if (numa_node_list_holder.build()) { | |
2729 if (PrintMiscellaneous && Verbose) { | |
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2730 tty->print("NUMA UsedNodeCount=%d, namely ", numa_node_list_holder.get_count()); |
3885 | 2731 for (int i = 0; i < numa_node_list_holder.get_count(); i++) { |
2732 tty->print("%d ", numa_node_list_holder.get_node_list_entry(i)); | |
2733 } | |
2734 tty->print("\n"); | |
2735 } | |
2736 success = true; | |
2737 } else { | |
2738 WARN("Process does not cover multiple NUMA nodes."); | |
2739 } | |
2740 } else { | |
2741 WARN("NUMA Interleaving is not supported by the operating system."); | |
2742 } | |
2743 if (!success) { | |
2744 if (use_numa_interleaving_specified) WARN("...Ignoring UseNUMAInterleaving flag."); | |
2745 } | |
2746 return success; | |
2747 #undef WARN | |
2748 } | |
2749 | |
2750 // this routine is used whenever we need to reserve a contiguous VA range | |
2751 // but we need to make separate VirtualAlloc calls for each piece of the range | |
2752 // Reasons for doing this: | |
2753 // * UseLargePagesIndividualAllocation was set (normally only needed on WS2003 but possible to be set otherwise) | |
2754 // * UseNUMAInterleaving requires a separate node for each piece | |
2755 static char* allocate_pages_individually(size_t bytes, char* addr, DWORD flags, DWORD prot, | |
2756 bool should_inject_error=false) { | |
2757 char * p_buf; | |
2758 // note: at setup time we guaranteed that NUMAInterleaveGranularity was aligned up to a page size | |
2759 size_t page_size = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
2760 size_t chunk_size = UseNUMAInterleaving ? NUMAInterleaveGranularity : page_size; | |
2761 | |
2762 // first reserve enough address space in advance since we want to be | |
2763 // able to break a single contiguous virtual address range into multiple | |
2764 // large page commits but WS2003 does not allow reserving large page space | |
2765 // so we just use 4K pages for reserve, this gives us a legal contiguous | |
2766 // address space. then we will deallocate that reservation, and re alloc | |
2767 // using large pages | |
2768 const size_t size_of_reserve = bytes + chunk_size; | |
2769 if (bytes > size_of_reserve) { | |
2770 // Overflowed. | |
2771 return NULL; | |
2772 } | |
2773 p_buf = (char *) VirtualAlloc(addr, | |
2774 size_of_reserve, // size of Reserve | |
2775 MEM_RESERVE, | |
2776 PAGE_READWRITE); | |
2777 // If reservation failed, return NULL | |
2778 if (p_buf == NULL) return NULL; | |
2779 | |
2780 os::release_memory(p_buf, bytes + chunk_size); | |
2781 | |
2782 // we still need to round up to a page boundary (in case we are using large pages) | |
2783 // but not to a chunk boundary (in case InterleavingGranularity doesn't align with page size) | |
2784 // instead we handle this in the bytes_to_rq computation below | |
2785 p_buf = (char *) align_size_up((size_t)p_buf, page_size); | |
2786 | |
2787 // now go through and allocate one chunk at a time until all bytes are | |
2788 // allocated | |
2789 size_t bytes_remaining = bytes; | |
2790 // An overflow of align_size_up() would have been caught above | |
2791 // in the calculation of size_of_reserve. | |
2792 char * next_alloc_addr = p_buf; | |
2793 HANDLE hProc = GetCurrentProcess(); | |
2794 | |
2795 #ifdef ASSERT | |
2796 // Variable for the failure injection | |
2797 long ran_num = os::random(); | |
2798 size_t fail_after = ran_num % bytes; | |
2799 #endif | |
2800 | |
2801 int count=0; | |
2802 while (bytes_remaining) { | |
2803 // select bytes_to_rq to get to the next chunk_size boundary | |
2804 | |
2805 size_t bytes_to_rq = MIN2(bytes_remaining, chunk_size - ((size_t)next_alloc_addr % chunk_size)); | |
2806 // Note allocate and commit | |
2807 char * p_new; | |
2808 | |
2809 #ifdef ASSERT | |
2810 bool inject_error_now = should_inject_error && (bytes_remaining <= fail_after); | |
2811 #else | |
2812 const bool inject_error_now = false; | |
2813 #endif | |
2814 | |
2815 if (inject_error_now) { | |
2816 p_new = NULL; | |
2817 } else { | |
2818 if (!UseNUMAInterleaving) { | |
2819 p_new = (char *) VirtualAlloc(next_alloc_addr, | |
2820 bytes_to_rq, | |
2821 flags, | |
2822 prot); | |
2823 } else { | |
2824 // get the next node to use from the used_node_list | |
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2825 assert(numa_node_list_holder.get_count() > 0, "Multiple NUMA nodes expected"); |
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2826 DWORD node = numa_node_list_holder.get_node_list_entry(count % numa_node_list_holder.get_count()); |
3885 | 2827 p_new = (char *)os::Kernel32Dll::VirtualAllocExNuma(hProc, |
2828 next_alloc_addr, | |
2829 bytes_to_rq, | |
2830 flags, | |
2831 prot, | |
2832 node); | |
2833 } | |
2834 } | |
2835 | |
2836 if (p_new == NULL) { | |
2837 // Free any allocated pages | |
2838 if (next_alloc_addr > p_buf) { | |
2839 // Some memory was committed so release it. | |
2840 size_t bytes_to_release = bytes - bytes_remaining; | |
2841 os::release_memory(p_buf, bytes_to_release); | |
2842 } | |
2843 #ifdef ASSERT | |
2844 if (should_inject_error) { | |
2845 if (TracePageSizes && Verbose) { | |
2846 tty->print_cr("Reserving pages individually failed."); | |
2847 } | |
2848 } | |
2849 #endif | |
2850 return NULL; | |
2851 } | |
2852 bytes_remaining -= bytes_to_rq; | |
2853 next_alloc_addr += bytes_to_rq; | |
2854 count++; | |
2855 } | |
2856 // made it this far, success | |
2857 return p_buf; | |
2858 } | |
2859 | |
2860 | |
2861 | |
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2862 void os::large_page_init() { |
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2863 if (!UseLargePages) return; |
0 | 2864 |
2865 // print a warning if any large page related flag is specified on command line | |
2866 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
2867 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
2868 bool success = false; | |
2869 | |
2870 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
2871 if (resolve_functions_for_large_page_init()) { | |
2872 if (request_lock_memory_privilege()) { | |
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2873 size_t s = os::Kernel32Dll::GetLargePageMinimum(); |
0 | 2874 if (s) { |
2875 #if defined(IA32) || defined(AMD64) | |
2876 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
2877 WARN("JVM cannot use large pages bigger than 4mb."); | |
2878 } else { | |
2879 #endif | |
2880 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
2881 _large_page_size = LargePageSizeInBytes; | |
2882 } else { | |
2883 _large_page_size = s; | |
2884 } | |
2885 success = true; | |
2886 #if defined(IA32) || defined(AMD64) | |
2887 } | |
2888 #endif | |
2889 } else { | |
2890 WARN("Large page is not supported by the processor."); | |
2891 } | |
2892 } else { | |
2893 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
2894 } | |
2895 } else { | |
2896 WARN("Large page is not supported by the operating system."); | |
2897 } | |
2898 #undef WARN | |
2899 | |
2900 const size_t default_page_size = (size_t) vm_page_size(); | |
2901 if (success && _large_page_size > default_page_size) { | |
2902 _page_sizes[0] = _large_page_size; | |
2903 _page_sizes[1] = default_page_size; | |
2904 _page_sizes[2] = 0; | |
2905 } | |
2906 | |
2907 cleanup_after_large_page_init(); | |
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2908 UseLargePages = success; |
0 | 2909 } |
2910 | |
2911 // On win32, one cannot release just a part of reserved memory, it's an | |
2912 // all or nothing deal. When we split a reservation, we must break the | |
2913 // reservation into two reservations. | |
2914 void os::split_reserved_memory(char *base, size_t size, size_t split, | |
2915 bool realloc) { | |
2916 if (size > 0) { | |
2917 release_memory(base, size); | |
2918 if (realloc) { | |
2919 reserve_memory(split, base); | |
2920 } | |
2921 if (size != split) { | |
2922 reserve_memory(size - split, base + split); | |
2923 } | |
2924 } | |
2925 } | |
2926 | |
2927 char* os::reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { | |
2928 assert((size_t)addr % os::vm_allocation_granularity() == 0, | |
2929 "reserve alignment"); | |
2930 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
3885 | 2931 char* res; |
2932 // note that if UseLargePages is on, all the areas that require interleaving | |
2933 // will go thru reserve_memory_special rather than thru here. | |
2934 bool use_individual = (UseNUMAInterleaving && !UseLargePages); | |
2935 if (!use_individual) { | |
2936 res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); | |
2937 } else { | |
2938 elapsedTimer reserveTimer; | |
2939 if( Verbose && PrintMiscellaneous ) reserveTimer.start(); | |
2940 // in numa interleaving, we have to allocate pages individually | |
2941 // (well really chunks of NUMAInterleaveGranularity size) | |
2942 res = allocate_pages_individually(bytes, addr, MEM_RESERVE, PAGE_READWRITE); | |
2943 if (res == NULL) { | |
2944 warning("NUMA page allocation failed"); | |
2945 } | |
2946 if( Verbose && PrintMiscellaneous ) { | |
2947 reserveTimer.stop(); | |
2948 tty->print_cr("reserve_memory of %Ix bytes took %ld ms (%ld ticks)", bytes, | |
2949 reserveTimer.milliseconds(), reserveTimer.ticks()); | |
2950 } | |
2951 } | |
0 | 2952 assert(res == NULL || addr == NULL || addr == res, |
2953 "Unexpected address from reserve."); | |
3885 | 2954 |
0 | 2955 return res; |
2956 } | |
2957 | |
2958 // Reserve memory at an arbitrary address, only if that area is | |
2959 // available (and not reserved for something else). | |
2960 char* os::attempt_reserve_memory_at(size_t bytes, char* requested_addr) { | |
2961 // Windows os::reserve_memory() fails of the requested address range is | |
2962 // not avilable. | |
2963 return reserve_memory(bytes, requested_addr); | |
2964 } | |
2965 | |
2966 size_t os::large_page_size() { | |
2967 return _large_page_size; | |
2968 } | |
2969 | |
2970 bool os::can_commit_large_page_memory() { | |
2971 // Windows only uses large page memory when the entire region is reserved | |
2972 // and committed in a single VirtualAlloc() call. This may change in the | |
2973 // future, but with Windows 2003 it's not possible to commit on demand. | |
2974 return false; | |
2975 } | |
2976 | |
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2977 bool os::can_execute_large_page_memory() { |
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2978 return true; |
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2979 } |
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2980 |
656 | 2981 char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) { |
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2982 |
717 | 2983 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
3885 | 2984 const DWORD flags = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
2985 | |
2986 // with large pages, there are two cases where we need to use Individual Allocation | |
2987 // 1) the UseLargePagesIndividualAllocation flag is set (set by default on WS2003) | |
2988 // 2) NUMA Interleaving is enabled, in which case we use a different node for each page | |
2989 if (UseLargePagesIndividualAllocation || UseNUMAInterleaving) { | |
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2990 if (TracePageSizes && Verbose) { |
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2991 tty->print_cr("Reserving large pages individually."); |
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2992 } |
3885 | 2993 char * p_buf = allocate_pages_individually(bytes, addr, flags, prot, LargePagesIndividualAllocationInjectError); |
2994 if (p_buf == NULL) { | |
2995 // give an appropriate warning message | |
2996 if (UseNUMAInterleaving) { | |
2997 warning("NUMA large page allocation failed, UseLargePages flag ignored"); | |
2998 } | |
2999 if (UseLargePagesIndividualAllocation) { | |
3000 warning("Individually allocated large pages failed, " | |
3001 "use -XX:-UseLargePagesIndividualAllocation to turn off"); | |
3002 } | |
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3003 return NULL; |
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3004 } |
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3005 |
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3006 return p_buf; |
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3007 |
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3008 } else { |
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3009 // normal policy just allocate it all at once |
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3010 DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
717 | 3011 char * res = (char *)VirtualAlloc(NULL, bytes, flag, prot); |
389
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3012 return res; |
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3013 } |
0 | 3014 } |
3015 | |
3016 bool os::release_memory_special(char* base, size_t bytes) { | |
3017 return release_memory(base, bytes); | |
3018 } | |
3019 | |
3020 void os::print_statistics() { | |
3021 } | |
3022 | |
656 | 3023 bool os::commit_memory(char* addr, size_t bytes, bool exec) { |
0 | 3024 if (bytes == 0) { |
3025 // Don't bother the OS with noops. | |
3026 return true; | |
3027 } | |
3028 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
3029 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
3030 // Don't attempt to print anything if the OS call fails. We're | |
3031 // probably low on resources, so the print itself may cause crashes. | |
3885 | 3032 |
3033 // unless we have NUMAInterleaving enabled, the range of a commit | |
3034 // is always within a reserve covered by a single VirtualAlloc | |
3035 // in that case we can just do a single commit for the requested size | |
3036 if (!UseNUMAInterleaving) { | |
3037 if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) return false; | |
3038 if (exec) { | |
3039 DWORD oldprot; | |
3040 // Windows doc says to use VirtualProtect to get execute permissions | |
3041 if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) return false; | |
3042 } | |
3043 return true; | |
656 | 3044 } else { |
3885 | 3045 |
3046 // when NUMAInterleaving is enabled, the commit might cover a range that | |
3047 // came from multiple VirtualAlloc reserves (using allocate_pages_individually). | |
3048 // VirtualQuery can help us determine that. The RegionSize that VirtualQuery | |
3049 // returns represents the number of bytes that can be committed in one step. | |
3050 size_t bytes_remaining = bytes; | |
3051 char * next_alloc_addr = addr; | |
3052 while (bytes_remaining > 0) { | |
3053 MEMORY_BASIC_INFORMATION alloc_info; | |
3054 VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info)); | |
3055 size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize); | |
3056 if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT, PAGE_READWRITE) == NULL) | |
3057 return false; | |
3058 if (exec) { | |
3059 DWORD oldprot; | |
3060 if (!VirtualProtect(next_alloc_addr, bytes_to_rq, PAGE_EXECUTE_READWRITE, &oldprot)) | |
3061 return false; | |
3062 } | |
3063 bytes_remaining -= bytes_to_rq; | |
3064 next_alloc_addr += bytes_to_rq; | |
3065 } | |
3066 } | |
3067 // if we made it this far, return true | |
3068 return true; | |
0 | 3069 } |
3070 | |
656 | 3071 bool os::commit_memory(char* addr, size_t size, size_t alignment_hint, |
3072 bool exec) { | |
3073 return commit_memory(addr, size, exec); | |
0 | 3074 } |
3075 | |
3076 bool os::uncommit_memory(char* addr, size_t bytes) { | |
3077 if (bytes == 0) { | |
3078 // Don't bother the OS with noops. | |
3079 return true; | |
3080 } | |
3081 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
3082 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
3083 return VirtualFree(addr, bytes, MEM_DECOMMIT) != 0; | |
3084 } | |
3085 | |
3086 bool os::release_memory(char* addr, size_t bytes) { | |
3087 return VirtualFree(addr, 0, MEM_RELEASE) != 0; | |
3088 } | |
3089 | |
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3090 bool os::create_stack_guard_pages(char* addr, size_t size) { |
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3091 return os::commit_memory(addr, size); |
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3092 } |
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3093 |
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3094 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
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3095 return os::uncommit_memory(addr, size); |
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3096 } |
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3097 |
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3098 // Set protections specified |
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3099 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
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3100 bool is_committed) { |
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3101 unsigned int p = 0; |
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3102 switch (prot) { |
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3103 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
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3104 case MEM_PROT_READ: p = PAGE_READONLY; break; |
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3105 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
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3106 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
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3107 default: |
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3108 ShouldNotReachHere(); |
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3109 } |
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3110 |
0 | 3111 DWORD old_status; |
237
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3112 |
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3113 // Strange enough, but on Win32 one can change protection only for committed |
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3114 // memory, not a big deal anyway, as bytes less or equal than 64K |
656 | 3115 if (!is_committed && !commit_memory(addr, bytes, prot == MEM_PROT_RWX)) { |
237
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3116 fatal("cannot commit protection page"); |
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3117 } |
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3118 // One cannot use os::guard_memory() here, as on Win32 guard page |
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3119 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
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3120 // |
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3121 // Pages in the region become guard pages. Any attempt to access a guard page |
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3122 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
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3123 // the guard page status. Guard pages thus act as a one-time access alarm. |
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3124 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
0 | 3125 } |
3126 | |
3127 bool os::guard_memory(char* addr, size_t bytes) { | |
3128 DWORD old_status; | |
477
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3129 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
0 | 3130 } |
3131 | |
3132 bool os::unguard_memory(char* addr, size_t bytes) { | |
3133 DWORD old_status; | |
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3134 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
0 | 3135 } |
3136 | |
3137 void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
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3138 void os::free_memory(char *addr, size_t bytes, size_t alignment_hint) { } |
0 | 3139 void os::numa_make_global(char *addr, size_t bytes) { } |
141 | 3140 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
0 | 3141 bool os::numa_topology_changed() { return false; } |
3918
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3142 size_t os::numa_get_groups_num() { return MAX2(numa_node_list_holder.get_count(), 1); } |
0 | 3143 int os::numa_get_group_id() { return 0; } |
3144 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
3918
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3145 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
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3146 // Provide an answer for UMA systems |
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3147 ids[0] = 0; |
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3148 return 1; |
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3149 } else { |
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3150 // check for size bigger than actual groups_num |
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3151 size = MIN2(size, numa_get_groups_num()); |
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3152 for (int i = 0; i < (int)size; i++) { |
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3153 ids[i] = numa_node_list_holder.get_node_list_entry(i); |
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3154 } |
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3155 return size; |
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3156 } |
0 | 3157 } |
3158 | |
3159 bool os::get_page_info(char *start, page_info* info) { | |
3160 return false; | |
3161 } | |
3162 | |
3163 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
3164 return end; | |
3165 } | |
3166 | |
3167 char* os::non_memory_address_word() { | |
3168 // Must never look like an address returned by reserve_memory, | |
3169 // even in its subfields (as defined by the CPU immediate fields, | |
3170 // if the CPU splits constants across multiple instructions). | |
3171 return (char*)-1; | |
3172 } | |
3173 | |
3174 #define MAX_ERROR_COUNT 100 | |
3175 #define SYS_THREAD_ERROR 0xffffffffUL | |
3176 | |
3177 void os::pd_start_thread(Thread* thread) { | |
3178 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
3179 // Returns previous suspend state: | |
3180 // 0: Thread was not suspended | |
3181 // 1: Thread is running now | |
3182 // >1: Thread is still suspended. | |
3183 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
3184 } | |
3185 | |
3186 class HighResolutionInterval { | |
3187 // The default timer resolution seems to be 10 milliseconds. | |
3188 // (Where is this written down?) | |
3189 // If someone wants to sleep for only a fraction of the default, | |
3190 // then we set the timer resolution down to 1 millisecond for | |
3191 // the duration of their interval. | |
3192 // We carefully set the resolution back, since otherwise we | |
3193 // seem to incur an overhead (3%?) that we don't need. | |
3194 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
3195 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
3196 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
3197 // timeBeginPeriod() if the relative error exceeded some threshold. | |
3198 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
3199 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
3200 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
3201 // resolution timers running. | |
3202 private: | |
3203 jlong resolution; | |
3204 public: | |
3205 HighResolutionInterval(jlong ms) { | |
3206 resolution = ms % 10L; | |
3207 if (resolution != 0) { | |
3208 MMRESULT result = timeBeginPeriod(1L); | |
3209 } | |
3210 } | |
3211 ~HighResolutionInterval() { | |
3212 if (resolution != 0) { | |
3213 MMRESULT result = timeEndPeriod(1L); | |
3214 } | |
3215 resolution = 0L; | |
3216 } | |
3217 }; | |
3218 | |
3219 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
3220 jlong limit = (jlong) MAXDWORD; | |
3221 | |
3222 while(ms > limit) { | |
3223 int res; | |
3224 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
3225 return res; | |
3226 ms -= limit; | |
3227 } | |
3228 | |
3229 assert(thread == Thread::current(), "thread consistency check"); | |
3230 OSThread* osthread = thread->osthread(); | |
3231 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
3232 int result; | |
3233 if (interruptable) { | |
3234 assert(thread->is_Java_thread(), "must be java thread"); | |
3235 JavaThread *jt = (JavaThread *) thread; | |
3236 ThreadBlockInVM tbivm(jt); | |
3237 | |
3238 jt->set_suspend_equivalent(); | |
3239 // cleared by handle_special_suspend_equivalent_condition() or | |
3240 // java_suspend_self() via check_and_wait_while_suspended() | |
3241 | |
3242 HANDLE events[1]; | |
3243 events[0] = osthread->interrupt_event(); | |
3244 HighResolutionInterval *phri=NULL; | |
3245 if(!ForceTimeHighResolution) | |
3246 phri = new HighResolutionInterval( ms ); | |
3247 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
3248 result = OS_TIMEOUT; | |
3249 } else { | |
3250 ResetEvent(osthread->interrupt_event()); | |
3251 osthread->set_interrupted(false); | |
3252 result = OS_INTRPT; | |
3253 } | |
3254 delete phri; //if it is NULL, harmless | |
3255 | |
3256 // were we externally suspended while we were waiting? | |
3257 jt->check_and_wait_while_suspended(); | |
3258 } else { | |
3259 assert(!thread->is_Java_thread(), "must not be java thread"); | |
3260 Sleep((long) ms); | |
3261 result = OS_TIMEOUT; | |
3262 } | |
3263 return result; | |
3264 } | |
3265 | |
3266 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
3267 void os::infinite_sleep() { | |
3268 while (true) { // sleep forever ... | |
3269 Sleep(100000); // ... 100 seconds at a time | |
3270 } | |
3271 } | |
3272 | |
3273 typedef BOOL (WINAPI * STTSignature)(void) ; | |
3274 | |
3275 os::YieldResult os::NakedYield() { | |
3276 // Use either SwitchToThread() or Sleep(0) | |
3277 // Consider passing back the return value from SwitchToThread(). | |
3833
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3278 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
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3279 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
0 | 3280 } else { |
3833
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3281 Sleep(0); |
0 | 3282 } |
3283 return os::YIELD_UNKNOWN ; | |
3284 } | |
3285 | |
3286 void os::yield() { os::NakedYield(); } | |
3287 | |
3288 void os::yield_all(int attempts) { | |
3289 // Yields to all threads, including threads with lower priorities | |
3290 Sleep(1); | |
3291 } | |
3292 | |
3293 // Win32 only gives you access to seven real priorities at a time, | |
3294 // so we compress Java's ten down to seven. It would be better | |
3295 // if we dynamically adjusted relative priorities. | |
3296 | |
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3297 int os::java_to_os_priority[CriticalPriority + 1] = { |
0 | 3298 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
3299 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
3300 THREAD_PRIORITY_LOWEST, // 2 | |
3301 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
3302 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
3303 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
3304 THREAD_PRIORITY_NORMAL, // 6 | |
3305 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
3306 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
3307 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
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3308 THREAD_PRIORITY_HIGHEST, // 10 MaxPriority |
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3309 THREAD_PRIORITY_HIGHEST // 11 CriticalPriority |
0 | 3310 }; |
3311 | |
4854
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3312 int prio_policy1[CriticalPriority + 1] = { |
0 | 3313 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
3314 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
3315 THREAD_PRIORITY_LOWEST, // 2 | |
3316 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
3317 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
3318 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
3319 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
3320 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
3321 THREAD_PRIORITY_HIGHEST, // 8 | |
3322 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
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3323 THREAD_PRIORITY_TIME_CRITICAL, // 10 MaxPriority |
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3324 THREAD_PRIORITY_TIME_CRITICAL // 11 CriticalPriority |
0 | 3325 }; |
3326 | |
3327 static int prio_init() { | |
3328 // If ThreadPriorityPolicy is 1, switch tables | |
3329 if (ThreadPriorityPolicy == 1) { | |
3330 int i; | |
4854
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3331 for (i = 0; i < CriticalPriority + 1; i++) { |
0 | 3332 os::java_to_os_priority[i] = prio_policy1[i]; |
3333 } | |
3334 } | |
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3335 if (UseCriticalJavaThreadPriority) { |
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3336 os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority] ; |
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3337 } |
0 | 3338 return 0; |
3339 } | |
3340 | |
3341 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
3342 if (!UseThreadPriorities) return OS_OK; | |
3343 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
3344 return ret ? OS_OK : OS_ERR; | |
3345 } | |
3346 | |
3347 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
3348 if ( !UseThreadPriorities ) { | |
3349 *priority_ptr = java_to_os_priority[NormPriority]; | |
3350 return OS_OK; | |
3351 } | |
3352 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
3353 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
3354 assert(false, "GetThreadPriority failed"); | |
3355 return OS_ERR; | |
3356 } | |
3357 *priority_ptr = os_prio; | |
3358 return OS_OK; | |
3359 } | |
3360 | |
3361 | |
3362 // Hint to the underlying OS that a task switch would not be good. | |
3363 // Void return because it's a hint and can fail. | |
3364 void os::hint_no_preempt() {} | |
3365 | |
3366 void os::interrupt(Thread* thread) { | |
3367 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
3368 "possibility of dangling Thread pointer"); | |
3369 | |
3370 OSThread* osthread = thread->osthread(); | |
3371 osthread->set_interrupted(true); | |
3372 // More than one thread can get here with the same value of osthread, | |
3373 // resulting in multiple notifications. We do, however, want the store | |
3374 // to interrupted() to be visible to other threads before we post | |
3375 // the interrupt event. | |
3376 OrderAccess::release(); | |
3377 SetEvent(osthread->interrupt_event()); | |
3378 // For JSR166: unpark after setting status | |
3379 if (thread->is_Java_thread()) | |
3380 ((JavaThread*)thread)->parker()->unpark(); | |
3381 | |
3382 ParkEvent * ev = thread->_ParkEvent ; | |
3383 if (ev != NULL) ev->unpark() ; | |
3384 | |
3385 } | |
3386 | |
3387 | |
3388 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
3389 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
3390 "possibility of dangling Thread pointer"); | |
3391 | |
3392 OSThread* osthread = thread->osthread(); | |
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3393 bool interrupted = osthread->interrupted(); |
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3394 // There is no synchronization between the setting of the interrupt |
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3395 // and it being cleared here. It is critical - see 6535709 - that |
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3396 // we only clear the interrupt state, and reset the interrupt event, |
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3397 // if we are going to report that we were indeed interrupted - else |
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3398 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
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3399 // depending on the timing |
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3400 if (interrupted && clear_interrupted) { |
0 | 3401 osthread->set_interrupted(false); |
3402 ResetEvent(osthread->interrupt_event()); | |
3403 } // Otherwise leave the interrupted state alone | |
3404 | |
3405 return interrupted; | |
3406 } | |
3407 | |
3408 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
3409 ExtendedPC os::get_thread_pc(Thread* thread) { | |
3410 CONTEXT context; | |
3411 context.ContextFlags = CONTEXT_CONTROL; | |
3412 HANDLE handle = thread->osthread()->thread_handle(); | |
3413 #ifdef _M_IA64 | |
3414 assert(0, "Fix get_thread_pc"); | |
3415 return ExtendedPC(NULL); | |
3416 #else | |
3417 if (GetThreadContext(handle, &context)) { | |
3418 #ifdef _M_AMD64 | |
3419 return ExtendedPC((address) context.Rip); | |
3420 #else | |
3421 return ExtendedPC((address) context.Eip); | |
3422 #endif | |
3423 } else { | |
3424 return ExtendedPC(NULL); | |
3425 } | |
3426 #endif | |
3427 } | |
3428 | |
3429 // GetCurrentThreadId() returns DWORD | |
3430 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
3431 | |
3432 static int _initial_pid = 0; | |
3433 | |
3434 int os::current_process_id() | |
3435 { | |
3436 return (_initial_pid ? _initial_pid : _getpid()); | |
3437 } | |
3438 | |
3439 int os::win32::_vm_page_size = 0; | |
3440 int os::win32::_vm_allocation_granularity = 0; | |
3441 int os::win32::_processor_type = 0; | |
3442 // Processor level is not available on non-NT systems, use vm_version instead | |
3443 int os::win32::_processor_level = 0; | |
3444 julong os::win32::_physical_memory = 0; | |
3445 size_t os::win32::_default_stack_size = 0; | |
3446 | |
3447 intx os::win32::_os_thread_limit = 0; | |
3448 volatile intx os::win32::_os_thread_count = 0; | |
3449 | |
3450 bool os::win32::_is_nt = false; | |
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3451 bool os::win32::_is_windows_2003 = false; |
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3452 bool os::win32::_is_windows_server = false; |
0 | 3453 |
3454 void os::win32::initialize_system_info() { | |
3455 SYSTEM_INFO si; | |
3456 GetSystemInfo(&si); | |
3457 _vm_page_size = si.dwPageSize; | |
3458 _vm_allocation_granularity = si.dwAllocationGranularity; | |
3459 _processor_type = si.dwProcessorType; | |
3460 _processor_level = si.wProcessorLevel; | |
1123
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3461 set_processor_count(si.dwNumberOfProcessors); |
0 | 3462 |
877
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3463 MEMORYSTATUSEX ms; |
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3464 ms.dwLength = sizeof(ms); |
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3465 |
0 | 3466 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
3467 // dwMemoryLoad (% of memory in use) | |
877
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3468 GlobalMemoryStatusEx(&ms); |
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3469 _physical_memory = ms.ullTotalPhys; |
0 | 3470 |
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3471 OSVERSIONINFOEX oi; |
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3472 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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3473 GetVersionEx((OSVERSIONINFO*)&oi); |
0 | 3474 switch(oi.dwPlatformId) { |
3475 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
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3476 case VER_PLATFORM_WIN32_NT: |
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3477 _is_nt = true; |
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3478 { |
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3479 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
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3480 if (os_vers == 5002) { |
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3481 _is_windows_2003 = true; |
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3482 } |
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3483 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
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3484 oi.wProductType == VER_NT_SERVER) { |
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3485 _is_windows_server = true; |
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3486 } |
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3487 } |
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3488 break; |
0 | 3489 default: fatal("Unknown platform"); |
3490 } | |
3491 | |
3492 _default_stack_size = os::current_stack_size(); | |
3493 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
3494 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
3495 "stack size not a multiple of page size"); | |
3496 | |
3497 initialize_performance_counter(); | |
3498 | |
3499 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
3500 // known to deadlock the system, if the VM issues to thread operations with | |
3501 // a too high frequency, e.g., such as changing the priorities. | |
3502 // The 6000 seems to work well - no deadlocks has been notices on the test | |
3503 // programs that we have seen experience this problem. | |
3504 if (!os::win32::is_nt()) { | |
3505 StarvationMonitorInterval = 6000; | |
3506 } | |
3507 } | |
3508 | |
3509 | |
3833
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3510 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
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3511 char path[MAX_PATH]; |
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3512 DWORD size; |
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3513 DWORD pathLen = (DWORD)sizeof(path); |
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3514 HINSTANCE result = NULL; |
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3515 |
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3516 // only allow library name without path component |
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3517 assert(strchr(name, '\\') == NULL, "path not allowed"); |
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3518 assert(strchr(name, ':') == NULL, "path not allowed"); |
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3519 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
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3520 jio_snprintf(ebuf, ebuflen, |
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3521 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
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3522 return NULL; |
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|
3523 } |
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|
3524 |
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|
3525 // search system directory |
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3526 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
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3527 strcat(path, "\\"); |
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|
3528 strcat(path, name); |
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3529 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
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|
3530 return result; |
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|
3531 } |
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3532 } |
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|
3533 |
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|
3534 // try Windows directory |
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|
3535 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
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|
3536 strcat(path, "\\"); |
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|
3537 strcat(path, name); |
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|
3538 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
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|
3539 return result; |
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|
3540 } |
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|
3541 } |
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|
3542 |
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|
3543 jio_snprintf(ebuf, ebuflen, |
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|
3544 "os::win32::load_windows_dll() cannot load %s from system directories.", name); |
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|
3545 return NULL; |
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|
3546 } |
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|
3547 |
0 | 3548 void os::win32::setmode_streams() { |
3549 _setmode(_fileno(stdin), _O_BINARY); | |
3550 _setmode(_fileno(stdout), _O_BINARY); | |
3551 _setmode(_fileno(stderr), _O_BINARY); | |
3552 } | |
3553 | |
3554 | |
2302
da091bb67459
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|
3555 bool os::is_debugger_attached() { |
da091bb67459
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|
3556 return IsDebuggerPresent() ? true : false; |
da091bb67459
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|
3557 } |
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|
3558 |
da091bb67459
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|
3559 |
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|
3560 void os::wait_for_keypress_at_exit(void) { |
da091bb67459
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diff
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|
3561 if (PauseAtExit) { |
da091bb67459
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diff
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|
3562 fprintf(stderr, "Press any key to continue...\n"); |
da091bb67459
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changeset
|
3563 fgetc(stdin); |
da091bb67459
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|
3564 } |
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|
3565 } |
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|
3566 |
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|
3567 |
0 | 3568 int os::message_box(const char* title, const char* message) { |
3569 int result = MessageBox(NULL, message, title, | |
3570 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
3571 return result == IDYES; | |
3572 } | |
3573 | |
3574 int os::allocate_thread_local_storage() { | |
3575 return TlsAlloc(); | |
3576 } | |
3577 | |
3578 | |
3579 void os::free_thread_local_storage(int index) { | |
3580 TlsFree(index); | |
3581 } | |
3582 | |
3583 | |
3584 void os::thread_local_storage_at_put(int index, void* value) { | |
3585 TlsSetValue(index, value); | |
3586 assert(thread_local_storage_at(index) == value, "Just checking"); | |
3587 } | |
3588 | |
3589 | |
3590 void* os::thread_local_storage_at(int index) { | |
3591 return TlsGetValue(index); | |
3592 } | |
3593 | |
3594 | |
3595 #ifndef PRODUCT | |
3596 #ifndef _WIN64 | |
3597 // Helpers to check whether NX protection is enabled | |
3598 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
3599 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
3600 pex->ExceptionRecord->NumberParameters > 0 && | |
3601 pex->ExceptionRecord->ExceptionInformation[0] == | |
3602 EXCEPTION_INFO_EXEC_VIOLATION) { | |
3603 return EXCEPTION_EXECUTE_HANDLER; | |
3604 } | |
3605 return EXCEPTION_CONTINUE_SEARCH; | |
3606 } | |
3607 | |
3608 void nx_check_protection() { | |
3609 // If NX is enabled we'll get an exception calling into code on the stack | |
3610 char code[] = { (char)0xC3 }; // ret | |
3611 void *code_ptr = (void *)code; | |
3612 __try { | |
3613 __asm call code_ptr | |
3614 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
3615 tty->print_raw_cr("NX protection detected."); | |
3616 } | |
3617 } | |
3618 #endif // _WIN64 | |
3619 #endif // PRODUCT | |
3620 | |
3621 // this is called _before_ the global arguments have been parsed | |
3622 void os::init(void) { | |
3623 _initial_pid = _getpid(); | |
3624 | |
3625 init_random(1234567); | |
3626 | |
3627 win32::initialize_system_info(); | |
3628 win32::setmode_streams(); | |
3629 init_page_sizes((size_t) win32::vm_page_size()); | |
3630 | |
3631 // For better scalability on MP systems (must be called after initialize_system_info) | |
3632 #ifndef PRODUCT | |
3633 if (is_MP()) { | |
3634 NoYieldsInMicrolock = true; | |
3635 } | |
3636 #endif | |
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3637 // This may be overridden later when argument processing is done. |
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3638 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
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3639 os::win32::is_windows_2003()); |
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3640 |
0 | 3641 // Initialize main_process and main_thread |
3642 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
389
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3643 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
0 | 3644 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
3645 fatal("DuplicateHandle failed\n"); | |
3646 } | |
3647 main_thread_id = (int) GetCurrentThreadId(); | |
3648 } | |
3649 | |
3650 // To install functions for atexit processing | |
3651 extern "C" { | |
3652 static void perfMemory_exit_helper() { | |
3653 perfMemory_exit(); | |
3654 } | |
3655 } | |
3656 | |
3657 // this is called _after_ the global arguments have been parsed | |
3658 jint os::init_2(void) { | |
3659 // Allocate a single page and mark it as readable for safepoint polling | |
3660 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
3661 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
3662 | |
3663 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
3664 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
3665 | |
3666 os::set_polling_page( polling_page ); | |
3667 | |
3668 #ifndef PRODUCT | |
3669 if( Verbose && PrintMiscellaneous ) | |
3670 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
3671 #endif | |
3672 | |
3673 if (!UseMembar) { | |
656 | 3674 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
0 | 3675 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
3676 | |
656 | 3677 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
0 | 3678 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
3679 | |
3680 os::set_memory_serialize_page( mem_serialize_page ); | |
3681 | |
3682 #ifndef PRODUCT | |
3683 if(Verbose && PrintMiscellaneous) | |
3684 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
3685 #endif | |
3885 | 3686 } |
0 | 3687 |
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3688 os::large_page_init(); |
0 | 3689 |
3690 // Setup Windows Exceptions | |
3691 | |
3692 // On Itanium systems, Structured Exception Handling does not | |
3693 // work since stack frames must be walkable by the OS. Since | |
3694 // much of our code is dynamically generated, and we do not have | |
3695 // proper unwind .xdata sections, the system simply exits | |
3696 // rather than delivering the exception. To work around | |
3697 // this we use VectorExceptions instead. | |
3698 #ifdef _WIN64 | |
3699 if (UseVectoredExceptions) { | |
3700 topLevelVectoredExceptionHandler = AddVectoredExceptionHandler( 1, topLevelExceptionFilter); | |
3701 } | |
3702 #endif | |
3703 | |
3704 // for debugging float code generation bugs | |
3705 if (ForceFloatExceptions) { | |
3706 #ifndef _WIN64 | |
3707 static long fp_control_word = 0; | |
3708 __asm { fstcw fp_control_word } | |
3709 // see Intel PPro Manual, Vol. 2, p 7-16 | |
3710 const long precision = 0x20; | |
3711 const long underflow = 0x10; | |
3712 const long overflow = 0x08; | |
3713 const long zero_div = 0x04; | |
3714 const long denorm = 0x02; | |
3715 const long invalid = 0x01; | |
3716 fp_control_word |= invalid; | |
3717 __asm { fldcw fp_control_word } | |
3718 #endif | |
3719 } | |
3720 | |
3721 // If stack_commit_size is 0, windows will reserve the default size, | |
3722 // but only commit a small portion of it. | |
3723 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
3724 size_t default_reserve_size = os::win32::default_stack_size(); | |
3725 size_t actual_reserve_size = stack_commit_size; | |
3726 if (stack_commit_size < default_reserve_size) { | |
3727 // If stack_commit_size == 0, we want this too | |
3728 actual_reserve_size = default_reserve_size; | |
3729 } | |
3730 | |
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3731 // Check minimum allowable stack size for thread creation and to initialize |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3732 // the java system classes, including StackOverflowError - depends on page |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3733 // size. Add a page for compiler2 recursion in main thread. |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3734 // Add in 2*BytesPerWord times page size to account for VM stack during |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3735 // class initialization depending on 32 or 64 bit VM. |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3736 size_t min_stack_allowed = |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3737 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3738 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3739 if (actual_reserve_size < min_stack_allowed) { |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3740 tty->print_cr("\nThe stack size specified is too small, " |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3741 "Specify at least %dk", |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3742 min_stack_allowed / K); |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3743 return JNI_ERR; |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3744 } |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3745 |
0 | 3746 JavaThread::set_stack_size_at_create(stack_commit_size); |
3747 | |
3748 // Calculate theoretical max. size of Threads to guard gainst artifical | |
3749 // out-of-memory situations, where all available address-space has been | |
3750 // reserved by thread stacks. | |
3751 assert(actual_reserve_size != 0, "Must have a stack"); | |
3752 | |
3753 // Calculate the thread limit when we should start doing Virtual Memory | |
3754 // banging. Currently when the threads will have used all but 200Mb of space. | |
3755 // | |
3756 // TODO: consider performing a similar calculation for commit size instead | |
3757 // as reserve size, since on a 64-bit platform we'll run into that more | |
3758 // often than running out of virtual memory space. We can use the | |
3759 // lower value of the two calculations as the os_thread_limit. | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
79
diff
changeset
|
3760 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
0 | 3761 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
3762 | |
3763 // at exit methods are called in the reverse order of their registration. | |
3764 // there is no limit to the number of functions registered. atexit does | |
3765 // not set errno. | |
3766 | |
3767 if (PerfAllowAtExitRegistration) { | |
3768 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
3769 // atexit functions can be delayed until process exit time, which | |
3770 // can be problematic for embedded VM situations. Embedded VMs should | |
3771 // call DestroyJavaVM() to assure that VM resources are released. | |
3772 | |
3773 // note: perfMemory_exit_helper atexit function may be removed in | |
3774 // the future if the appropriate cleanup code can be added to the | |
3775 // VM_Exit VMOperation's doit method. | |
3776 if (atexit(perfMemory_exit_helper) != 0) { | |
3777 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
3778 } | |
3779 } | |
3780 | |
3781 #ifndef _WIN64 | |
3782 // Print something if NX is enabled (win32 on AMD64) | |
3783 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
3784 #endif | |
3785 | |
3786 // initialize thread priority policy | |
3787 prio_init(); | |
3788 | |
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3789 if (UseNUMA && !ForceNUMA) { |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3790 UseNUMA = false; // We don't fully support this yet |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3791 } |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3792 |
3885 | 3793 if (UseNUMAInterleaving) { |
3794 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
3795 bool success = numa_interleaving_init(); | |
3796 if (!success) UseNUMAInterleaving = false; | |
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3797 } |
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3798 |
0 | 3799 return JNI_OK; |
3800 } | |
3801 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3802 void os::init_3(void) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3803 return; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3804 } |
0 | 3805 |
3806 // Mark the polling page as unreadable | |
3807 void os::make_polling_page_unreadable(void) { | |
3808 DWORD old_status; | |
3809 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
3810 fatal("Could not disable polling page"); | |
3811 }; | |
3812 | |
3813 // Mark the polling page as readable | |
3814 void os::make_polling_page_readable(void) { | |
3815 DWORD old_status; | |
3816 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
3817 fatal("Could not enable polling page"); | |
3818 }; | |
3819 | |
3820 | |
3821 int os::stat(const char *path, struct stat *sbuf) { | |
3822 char pathbuf[MAX_PATH]; | |
3823 if (strlen(path) > MAX_PATH - 1) { | |
3824 errno = ENAMETOOLONG; | |
3825 return -1; | |
3826 } | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3827 os::native_path(strcpy(pathbuf, path)); |
0 | 3828 int ret = ::stat(pathbuf, sbuf); |
3829 if (sbuf != NULL && UseUTCFileTimestamp) { | |
3830 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
3831 // the system timezone and so can return different values for the | |
3832 // same file if/when daylight savings time changes. This adjustment | |
3833 // makes sure the same timestamp is returned regardless of the TZ. | |
3834 // | |
3835 // See: | |
3836 // http://msdn.microsoft.com/library/ | |
3837 // default.asp?url=/library/en-us/sysinfo/base/ | |
3838 // time_zone_information_str.asp | |
3839 // and | |
3840 // http://msdn.microsoft.com/library/default.asp?url= | |
3841 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
3842 // | |
3843 // NOTE: there is a insidious bug here: If the timezone is changed | |
3844 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
3845 // the adjustment we do here will be wrong and we'll return the wrong | |
3846 // value (which will likely end up creating an invalid class data | |
3847 // archive). Absent a better API for this, or some time zone locking | |
3848 // mechanism, we'll have to live with this risk. | |
3849 TIME_ZONE_INFORMATION tz; | |
3850 DWORD tzid = GetTimeZoneInformation(&tz); | |
3851 int daylightBias = | |
3852 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
3853 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
3854 } | |
3855 return ret; | |
3856 } | |
3857 | |
3858 | |
3859 #define FT2INT64(ft) \ | |
3860 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
3861 | |
3862 | |
3863 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
3864 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
3865 // of a thread. | |
3866 // | |
3867 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
3868 // the fast estimate available on the platform. | |
3869 | |
3870 // current_thread_cpu_time() is not optimized for Windows yet | |
3871 jlong os::current_thread_cpu_time() { | |
3872 // return user + sys since the cost is the same | |
3873 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
3874 } | |
3875 | |
3876 jlong os::thread_cpu_time(Thread* thread) { | |
3877 // consistent with what current_thread_cpu_time() returns. | |
3878 return os::thread_cpu_time(thread, true /* user+sys */); | |
3879 } | |
3880 | |
3881 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
3882 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
3883 } | |
3884 | |
3885 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
3886 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
3887 // If this function changes, os::is_thread_cpu_time_supported() should too | |
3888 if (os::win32::is_nt()) { | |
3889 FILETIME CreationTime; | |
3890 FILETIME ExitTime; | |
3891 FILETIME KernelTime; | |
3892 FILETIME UserTime; | |
3893 | |
3894 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
3895 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
3896 return -1; | |
3897 else | |
3898 if (user_sys_cpu_time) { | |
3899 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
3900 } else { | |
3901 return FT2INT64(UserTime) * 100; | |
3902 } | |
3903 } else { | |
3904 return (jlong) timeGetTime() * 1000000; | |
3905 } | |
3906 } | |
3907 | |
3908 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
3909 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
3910 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
3911 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
3912 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
3913 } | |
3914 | |
3915 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
3916 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
3917 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
3918 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
3919 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
3920 } | |
3921 | |
3922 bool os::is_thread_cpu_time_supported() { | |
3923 // see os::thread_cpu_time | |
3924 if (os::win32::is_nt()) { | |
3925 FILETIME CreationTime; | |
3926 FILETIME ExitTime; | |
3927 FILETIME KernelTime; | |
3928 FILETIME UserTime; | |
3929 | |
3930 if ( GetThreadTimes(GetCurrentThread(), | |
3931 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
3932 return false; | |
3933 else | |
3934 return true; | |
3935 } else { | |
3936 return false; | |
3937 } | |
3938 } | |
3939 | |
3940 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
3941 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
3942 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
3943 // If we wanted to implement loadavg on Windows, we have a few options: | |
3944 // | |
3945 // a) Query CPU usage and run queue length and "fake" an answer by | |
3946 // returning the CPU usage if it's under 100%, and the run queue | |
3947 // length otherwise. It turns out that querying is pretty slow | |
3948 // on Windows, on the order of 200 microseconds on a fast machine. | |
3949 // Note that on the Windows the CPU usage value is the % usage | |
3950 // since the last time the API was called (and the first call | |
3951 // returns 100%), so we'd have to deal with that as well. | |
3952 // | |
3953 // b) Sample the "fake" answer using a sampling thread and store | |
3954 // the answer in a global variable. The call to loadavg would | |
3955 // just return the value of the global, avoiding the slow query. | |
3956 // | |
3957 // c) Sample a better answer using exponential decay to smooth the | |
3958 // value. This is basically the algorithm used by UNIX kernels. | |
3959 // | |
3960 // Note that sampling thread starvation could affect both (b) and (c). | |
3961 int os::loadavg(double loadavg[], int nelem) { | |
3962 return -1; | |
3963 } | |
3964 | |
3965 | |
3966 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
3967 bool os::dont_yield() { | |
3968 return DontYieldALot; | |
3969 } | |
3970 | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3971 // This method is a slightly reworked copy of JDK's sysOpen |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3972 // from src/windows/hpi/src/sys_api_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3973 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3974 int os::open(const char *path, int oflag, int mode) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3975 char pathbuf[MAX_PATH]; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3976 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3977 if (strlen(path) > MAX_PATH - 1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3978 errno = ENAMETOOLONG; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3979 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3980 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3981 os::native_path(strcpy(pathbuf, path)); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3982 return ::open(pathbuf, oflag | O_BINARY | O_NOINHERIT, mode); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3983 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3984 |
0 | 3985 // Is a (classpath) directory empty? |
3986 bool os::dir_is_empty(const char* path) { | |
3987 WIN32_FIND_DATA fd; | |
3988 HANDLE f = FindFirstFile(path, &fd); | |
3989 if (f == INVALID_HANDLE_VALUE) { | |
3990 return true; | |
3991 } | |
3992 FindClose(f); | |
3993 return false; | |
3994 } | |
3995 | |
3996 // create binary file, rewriting existing file if required | |
3997 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
3998 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
3999 if (!rewrite_existing) { | |
4000 oflags |= _O_EXCL; | |
4001 } | |
4002 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
4003 } | |
4004 | |
4005 // return current position of file pointer | |
4006 jlong os::current_file_offset(int fd) { | |
4007 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
4008 } | |
4009 | |
4010 // move file pointer to the specified offset | |
4011 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
4012 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
4013 } | |
4014 | |
4015 | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4016 jlong os::lseek(int fd, jlong offset, int whence) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4017 return (jlong) ::_lseeki64(fd, offset, whence); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4018 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4019 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4020 // This method is a slightly reworked copy of JDK's sysNativePath |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4021 // from src/windows/hpi/src/path_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4022 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4023 /* Convert a pathname to native format. On win32, this involves forcing all |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4024 separators to be '\\' rather than '/' (both are legal inputs, but Win95 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4025 sometimes rejects '/') and removing redundant separators. The input path is |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4026 assumed to have been converted into the character encoding used by the local |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4027 system. Because this might be a double-byte encoding, care is taken to |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4028 treat double-byte lead characters correctly. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4029 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4030 This procedure modifies the given path in place, as the result is never |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4031 longer than the original. There is no error return; this operation always |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4032 succeeds. */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4033 char * os::native_path(char *path) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4034 char *src = path, *dst = path, *end = path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4035 char *colon = NULL; /* If a drive specifier is found, this will |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4036 point to the colon following the drive |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4037 letter */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4038 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4039 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4040 assert(((!::IsDBCSLeadByte('/')) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4041 && (!::IsDBCSLeadByte('\\')) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4042 && (!::IsDBCSLeadByte(':'))), |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4043 "Illegal lead byte"); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4044 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4045 /* Check for leading separators */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4046 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4047 while (isfilesep(*src)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4048 src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4049 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4050 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4051 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4052 /* Remove leading separators if followed by drive specifier. This |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4053 hack is necessary to support file URLs containing drive |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4054 specifiers (e.g., "file://c:/path"). As a side effect, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4055 "/c:/path" can be used as an alternative to "c:/path". */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4056 *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4057 colon = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4058 *dst++ = ':'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4059 src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4060 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4061 src = path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4062 if (isfilesep(src[0]) && isfilesep(src[1])) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4063 /* UNC pathname: Retain first separator; leave src pointed at |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4064 second separator so that further separators will be collapsed |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4065 into the second separator. The result will be a pathname |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4066 beginning with "\\\\" followed (most likely) by a host name. */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4067 src = dst = path + 1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4068 path[0] = '\\'; /* Force first separator to '\\' */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4069 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4070 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4071 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4072 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4073 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4074 /* Remove redundant separators from remainder of path, forcing all |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4075 separators to be '\\' rather than '/'. Also, single byte space |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4076 characters are removed from the end of the path because those |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4077 are not legal ending characters on this operating system. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4078 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4079 while (*src != '\0') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4080 if (isfilesep(*src)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4081 *dst++ = '\\'; src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4082 while (isfilesep(*src)) src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4083 if (*src == '\0') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4084 /* Check for trailing separator */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4085 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4086 if (colon == dst - 2) break; /* "z:\\" */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4087 if (dst == path + 1) break; /* "\\" */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4088 if (dst == path + 2 && isfilesep(path[0])) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4089 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4090 beginning of a UNC pathname. Even though it is not, by |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4091 itself, a valid UNC pathname, we leave it as is in order |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4092 to be consistent with the path canonicalizer as well |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4093 as the win32 APIs, which treat this case as an invalid |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4094 UNC pathname rather than as an alias for the root |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4095 directory of the current drive. */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4096 break; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4097 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4098 end = --dst; /* Path does not denote a root directory, so |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4099 remove trailing separator */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4100 break; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4101 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4102 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4103 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4104 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4105 *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4106 if (*src) *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4107 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4108 } else { /* Copy a single-byte character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4109 char c = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4110 *dst++ = c; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4111 /* Space is not a legal ending character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4112 if (c != ' ') end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4113 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4114 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4115 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4116 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4117 *end = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4118 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4119 /* For "z:", add "." to work around a bug in the C runtime library */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4120 if (colon == dst - 1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4121 path[2] = '.'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4122 path[3] = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4123 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4124 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4125 #ifdef DEBUG |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4126 jio_fprintf(stderr, "sysNativePath: %s\n", path); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4127 #endif DEBUG |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4128 return path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4129 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4130 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4131 // This code is a copy of JDK's sysSetLength |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4132 // from src/windows/hpi/src/sys_api_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4133 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4134 int os::ftruncate(int fd, jlong length) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4135 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4136 long high = (long)(length >> 32); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4137 DWORD ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4138 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4139 if (h == (HANDLE)(-1)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4140 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4141 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4142 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4143 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4144 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4145 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4146 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4147 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4148 if (::SetEndOfFile(h) == FALSE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4149 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4150 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4151 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4152 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4153 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4154 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4155 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4156 // This code is a copy of JDK's sysSync |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4157 // from src/windows/hpi/src/sys_api_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4158 // except for the legacy workaround for a bug in Win 98 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4159 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4160 int os::fsync(int fd) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4161 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4162 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4163 if ( (!::FlushFileBuffers(handle)) && |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4164 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4165 /* from winerror.h */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4166 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4167 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4168 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4169 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4170 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4171 static int nonSeekAvailable(int, long *); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4172 static int stdinAvailable(int, long *); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4173 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4174 #define S_ISCHR(mode) (((mode) & _S_IFCHR) == _S_IFCHR) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4175 #define S_ISFIFO(mode) (((mode) & _S_IFIFO) == _S_IFIFO) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4176 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4177 // This code is a copy of JDK's sysAvailable |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4178 // from src/windows/hpi/src/sys_api_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4179 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4180 int os::available(int fd, jlong *bytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4181 jlong cur, end; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4182 struct _stati64 stbuf64; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4183 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4184 if (::_fstati64(fd, &stbuf64) >= 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4185 int mode = stbuf64.st_mode; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4186 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4187 int ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4188 long lpbytes; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4189 if (fd == 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4190 ret = stdinAvailable(fd, &lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4191 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4192 ret = nonSeekAvailable(fd, &lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4193 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4194 (*bytes) = (jlong)(lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4195 return ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4196 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4197 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4198 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4199 } else if ((end = ::_lseeki64(fd, 0L, SEEK_END)) == -1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4200 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4201 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4202 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4203 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4204 *bytes = end - cur; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4205 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4206 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4207 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4208 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4209 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4210 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4211 // This code is a copy of JDK's nonSeekAvailable |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4212 // from src/windows/hpi/src/sys_api_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4213 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4214 static int nonSeekAvailable(int fd, long *pbytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4215 /* This is used for available on non-seekable devices |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4216 * (like both named and anonymous pipes, such as pipes |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4217 * connected to an exec'd process). |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4218 * Standard Input is a special case. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4219 * |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4220 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4221 HANDLE han; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4222 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4223 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4224 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4225 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4226 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4227 if (! ::PeekNamedPipe(han, NULL, 0, NULL, (LPDWORD)pbytes, NULL)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4228 /* PeekNamedPipe fails when at EOF. In that case we |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4229 * simply make *pbytes = 0 which is consistent with the |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4230 * behavior we get on Solaris when an fd is at EOF. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4231 * The only alternative is to raise an Exception, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4232 * which isn't really warranted. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4233 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4234 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4235 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4236 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4237 *pbytes = 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4238 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4239 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4240 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4241 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4242 #define MAX_INPUT_EVENTS 2000 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4243 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4244 // This code is a copy of JDK's stdinAvailable |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4245 // from src/windows/hpi/src/sys_api_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4246 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4247 static int stdinAvailable(int fd, long *pbytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4248 HANDLE han; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4249 DWORD numEventsRead = 0; /* Number of events read from buffer */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4250 DWORD numEvents = 0; /* Number of events in buffer */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4251 DWORD i = 0; /* Loop index */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4252 DWORD curLength = 0; /* Position marker */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4253 DWORD actualLength = 0; /* Number of bytes readable */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4254 BOOL error = FALSE; /* Error holder */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4255 INPUT_RECORD *lpBuffer; /* Pointer to records of input events */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4256 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4257 if ((han = ::GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4258 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4259 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4260 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4261 /* Construct an array of input records in the console buffer */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4262 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4263 if (error == 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4264 return nonSeekAvailable(fd, pbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4265 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4266 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4267 /* lpBuffer must fit into 64K or else PeekConsoleInput fails */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4268 if (numEvents > MAX_INPUT_EVENTS) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4269 numEvents = MAX_INPUT_EVENTS; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4270 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4271 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4272 lpBuffer = (INPUT_RECORD *)os::malloc(numEvents * sizeof(INPUT_RECORD)); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4273 if (lpBuffer == NULL) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4274 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4275 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4276 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4277 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4278 if (error == 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4279 os::free(lpBuffer); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4280 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4281 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4282 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4283 /* Examine input records for the number of bytes available */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4284 for(i=0; i<numEvents; i++) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4285 if (lpBuffer[i].EventType == KEY_EVENT) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4286 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4287 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4288 &(lpBuffer[i].Event); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4289 if (keyRecord->bKeyDown == TRUE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4290 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4291 curLength++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4292 if (*keyPressed == '\r') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4293 actualLength = curLength; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4294 } |
828eafbd85cc
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diff
changeset
|
4295 } |
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diff
changeset
|
4296 } |
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diff
changeset
|
4297 } |
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diff
changeset
|
4298 |
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diff
changeset
|
4299 if(lpBuffer != NULL) { |
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parents:
1972
diff
changeset
|
4300 os::free(lpBuffer); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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parents:
1972
diff
changeset
|
4301 } |
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1972
diff
changeset
|
4302 |
828eafbd85cc
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parents:
1972
diff
changeset
|
4303 *pbytes = (long) actualLength; |
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1972
diff
changeset
|
4304 return TRUE; |
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1972
diff
changeset
|
4305 } |
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diff
changeset
|
4306 |
0 | 4307 // Map a block of memory. |
4308 char* os::map_memory(int fd, const char* file_name, size_t file_offset, | |
4309 char *addr, size_t bytes, bool read_only, | |
4310 bool allow_exec) { | |
4311 HANDLE hFile; | |
4312 char* base; | |
4313 | |
4314 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
4315 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
4316 if (hFile == NULL) { | |
4317 if (PrintMiscellaneous && Verbose) { | |
4318 DWORD err = GetLastError(); | |
4319 tty->print_cr("CreateFile() failed: GetLastError->%ld."); | |
4320 } | |
4321 return NULL; | |
4322 } | |
4323 | |
4324 if (allow_exec) { | |
4325 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
4326 // unless it comes from a PE image (which the shared archive is not.) | |
4327 // Even VirtualProtect refuses to give execute access to mapped memory | |
4328 // that was not previously executable. | |
4329 // | |
4330 // Instead, stick the executable region in anonymous memory. Yuck. | |
4331 // Penalty is that ~4 pages will not be shareable - in the future | |
4332 // we might consider DLLizing the shared archive with a proper PE | |
4333 // header so that mapping executable + sharing is possible. | |
4334 | |
4335 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
4336 PAGE_READWRITE); | |
4337 if (base == NULL) { | |
4338 if (PrintMiscellaneous && Verbose) { | |
4339 DWORD err = GetLastError(); | |
4340 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
4341 } | |
4342 CloseHandle(hFile); | |
4343 return NULL; | |
4344 } | |
4345 | |
4346 DWORD bytes_read; | |
4347 OVERLAPPED overlapped; | |
4348 overlapped.Offset = (DWORD)file_offset; | |
4349 overlapped.OffsetHigh = 0; | |
4350 overlapped.hEvent = NULL; | |
4351 // ReadFile guarantees that if the return value is true, the requested | |
4352 // number of bytes were read before returning. | |
4353 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
4354 if (!res) { | |
4355 if (PrintMiscellaneous && Verbose) { | |
4356 DWORD err = GetLastError(); | |
4357 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
4358 } | |
4359 release_memory(base, bytes); | |
4360 CloseHandle(hFile); | |
4361 return NULL; | |
4362 } | |
4363 } else { | |
4364 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
4365 NULL /*file_name*/); | |
4366 if (hMap == NULL) { | |
4367 if (PrintMiscellaneous && Verbose) { | |
4368 DWORD err = GetLastError(); | |
4369 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld."); | |
4370 } | |
4371 CloseHandle(hFile); | |
4372 return NULL; | |
4373 } | |
4374 | |
4375 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
4376 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
4377 (DWORD)bytes, addr); | |
4378 if (base == NULL) { | |
4379 if (PrintMiscellaneous && Verbose) { | |
4380 DWORD err = GetLastError(); | |
4381 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
4382 } | |
4383 CloseHandle(hMap); | |
4384 CloseHandle(hFile); | |
4385 return NULL; | |
4386 } | |
4387 | |
4388 if (CloseHandle(hMap) == 0) { | |
4389 if (PrintMiscellaneous && Verbose) { | |
4390 DWORD err = GetLastError(); | |
4391 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
4392 } | |
4393 CloseHandle(hFile); | |
4394 return base; | |
4395 } | |
4396 } | |
4397 | |
4398 if (allow_exec) { | |
4399 DWORD old_protect; | |
4400 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
4401 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
4402 | |
4403 if (!res) { | |
4404 if (PrintMiscellaneous && Verbose) { | |
4405 DWORD err = GetLastError(); | |
4406 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
4407 } | |
4408 // Don't consider this a hard error, on IA32 even if the | |
4409 // VirtualProtect fails, we should still be able to execute | |
4410 CloseHandle(hFile); | |
4411 return base; | |
4412 } | |
4413 } | |
4414 | |
4415 if (CloseHandle(hFile) == 0) { | |
4416 if (PrintMiscellaneous && Verbose) { | |
4417 DWORD err = GetLastError(); | |
4418 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
4419 } | |
4420 return base; | |
4421 } | |
4422 | |
4423 return base; | |
4424 } | |
4425 | |
4426 | |
4427 // Remap a block of memory. | |
4428 char* os::remap_memory(int fd, const char* file_name, size_t file_offset, | |
4429 char *addr, size_t bytes, bool read_only, | |
4430 bool allow_exec) { | |
4431 // This OS does not allow existing memory maps to be remapped so we | |
4432 // have to unmap the memory before we remap it. | |
4433 if (!os::unmap_memory(addr, bytes)) { | |
4434 return NULL; | |
4435 } | |
4436 | |
4437 // There is a very small theoretical window between the unmap_memory() | |
4438 // call above and the map_memory() call below where a thread in native | |
4439 // code may be able to access an address that is no longer mapped. | |
4440 | |
4441 return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only, | |
4442 allow_exec); | |
4443 } | |
4444 | |
4445 | |
4446 // Unmap a block of memory. | |
4447 // Returns true=success, otherwise false. | |
4448 | |
4449 bool os::unmap_memory(char* addr, size_t bytes) { | |
4450 BOOL result = UnmapViewOfFile(addr); | |
4451 if (result == 0) { | |
4452 if (PrintMiscellaneous && Verbose) { | |
4453 DWORD err = GetLastError(); | |
4454 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
4455 } | |
4456 return false; | |
4457 } | |
4458 return true; | |
4459 } | |
4460 | |
4461 void os::pause() { | |
4462 char filename[MAX_PATH]; | |
4463 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
4464 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
4465 } else { | |
4466 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
4467 } | |
4468 | |
4469 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
4470 if (fd != -1) { | |
4471 struct stat buf; | |
1980
828eafbd85cc
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1972
diff
changeset
|
4472 ::close(fd); |
0 | 4473 while (::stat(filename, &buf) == 0) { |
4474 Sleep(100); | |
4475 } | |
4476 } else { | |
4477 jio_fprintf(stderr, | |
4478 "Could not open pause file '%s', continuing immediately.\n", filename); | |
4479 } | |
4480 } | |
4481 | |
4482 // An Event wraps a win32 "CreateEvent" kernel handle. | |
4483 // | |
4484 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
4485 // | |
4486 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
4487 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
4488 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
4489 // In addition, an unpark() operation might fetch the handle field, but the | |
4490 // event could recycle between the fetch and the SetEvent() operation. | |
4491 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
4492 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
4493 // on an stale but recycled handle would be harmless, but in practice this might | |
4494 // confuse other non-Sun code, so it's not a viable approach. | |
4495 // | |
4496 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
4497 // with the Event. The event handle is never closed. This could be construed | |
4498 // as handle leakage, but only up to the maximum # of threads that have been extant | |
4499 // at any one time. This shouldn't be an issue, as windows platforms typically | |
4500 // permit a process to have hundreds of thousands of open handles. | |
4501 // | |
4502 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
4503 // and release unused handles. | |
4504 // | |
4505 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
4506 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
4507 // | |
4508 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
4509 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
4510 // | |
4511 // We use (2). | |
4512 // | |
4513 // TODO-FIXME: | |
4514 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
4515 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
4516 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
4517 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
4518 // into a single win32 CreateEvent() handle. | |
4519 // | |
4520 // _Event transitions in park() | |
4521 // -1 => -1 : illegal | |
4522 // 1 => 0 : pass - return immediately | |
4523 // 0 => -1 : block | |
4524 // | |
4525 // _Event serves as a restricted-range semaphore : | |
4526 // -1 : thread is blocked | |
4527 // 0 : neutral - thread is running or ready | |
4528 // 1 : signaled - thread is running or ready | |
4529 // | |
4530 // Another possible encoding of _Event would be | |
4531 // with explicit "PARKED" and "SIGNALED" bits. | |
4532 | |
4533 int os::PlatformEvent::park (jlong Millis) { | |
4534 guarantee (_ParkHandle != NULL , "Invariant") ; | |
4535 guarantee (Millis > 0 , "Invariant") ; | |
4536 int v ; | |
4537 | |
4538 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
4539 // the initial park() operation. | |
4540 | |
4541 for (;;) { | |
4542 v = _Event ; | |
4543 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
4544 } | |
4545 guarantee ((v == 0) || (v == 1), "invariant") ; | |
4546 if (v != 0) return OS_OK ; | |
4547 | |
4548 // Do this the hard way by blocking ... | |
4549 // TODO: consider a brief spin here, gated on the success of recent | |
4550 // spin attempts by this thread. | |
4551 // | |
4552 // We decompose long timeouts into series of shorter timed waits. | |
4553 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
4554 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
4555 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
4556 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
4557 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
4558 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
4559 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
4560 // for the already waited time. This policy does not admit any new outcomes. | |
4561 // In the future, however, we might want to track the accumulated wait time and | |
4562 // adjust Millis accordingly if we encounter a spurious wakeup. | |
4563 | |
4564 const int MAXTIMEOUT = 0x10000000 ; | |
4565 DWORD rv = WAIT_TIMEOUT ; | |
4566 while (_Event < 0 && Millis > 0) { | |
4567 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
4568 if (Millis > MAXTIMEOUT) { | |
4569 prd = MAXTIMEOUT ; | |
4570 } | |
4571 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
4572 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
4573 if (rv == WAIT_TIMEOUT) { | |
4574 Millis -= prd ; | |
4575 } | |
4576 } | |
4577 v = _Event ; | |
4578 _Event = 0 ; | |
4579 OrderAccess::fence() ; | |
4580 // If we encounter a nearly simultanous timeout expiry and unpark() | |
4581 // we return OS_OK indicating we awoke via unpark(). | |
4582 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
4583 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
4584 } | |
4585 | |
4586 void os::PlatformEvent::park () { | |
4587 guarantee (_ParkHandle != NULL, "Invariant") ; | |
4588 // Invariant: Only the thread associated with the Event/PlatformEvent | |
4589 // may call park(). | |
4590 int v ; | |
4591 for (;;) { | |
4592 v = _Event ; | |
4593 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
4594 } | |
4595 guarantee ((v == 0) || (v == 1), "invariant") ; | |
4596 if (v != 0) return ; | |
4597 | |
4598 // Do this the hard way by blocking ... | |
4599 // TODO: consider a brief spin here, gated on the success of recent | |
4600 // spin attempts by this thread. | |
4601 while (_Event < 0) { | |
4602 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
4603 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
4604 } | |
4605 | |
4606 // Usually we'll find _Event == 0 at this point, but as | |
4607 // an optional optimization we clear it, just in case can | |
4608 // multiple unpark() operations drove _Event up to 1. | |
4609 _Event = 0 ; | |
4610 OrderAccess::fence() ; | |
4611 guarantee (_Event >= 0, "invariant") ; | |
4612 } | |
4613 | |
4614 void os::PlatformEvent::unpark() { | |
4615 guarantee (_ParkHandle != NULL, "Invariant") ; | |
4616 int v ; | |
4617 for (;;) { | |
4618 v = _Event ; // Increment _Event if it's < 1. | |
4619 if (v > 0) { | |
4620 // If it's already signaled just return. | |
4621 // The LD of _Event could have reordered or be satisfied | |
4622 // by a read-aside from this processor's write buffer. | |
4623 // To avoid problems execute a barrier and then | |
4624 // ratify the value. A degenerate CAS() would also work. | |
4625 // Viz., CAS (v+0, &_Event, v) == v). | |
4626 OrderAccess::fence() ; | |
4627 if (_Event == v) return ; | |
4628 continue ; | |
4629 } | |
4630 if (Atomic::cmpxchg (v+1, &_Event, v) == v) break ; | |
4631 } | |
4632 if (v < 0) { | |
4633 ::SetEvent (_ParkHandle) ; | |
4634 } | |
4635 } | |
4636 | |
4637 | |
4638 // JSR166 | |
4639 // ------------------------------------------------------- | |
4640 | |
4641 /* | |
4642 * The Windows implementation of Park is very straightforward: Basic | |
4643 * operations on Win32 Events turn out to have the right semantics to | |
4644 * use them directly. We opportunistically resuse the event inherited | |
4645 * from Monitor. | |
4646 */ | |
4647 | |
4648 | |
4649 void Parker::park(bool isAbsolute, jlong time) { | |
4650 guarantee (_ParkEvent != NULL, "invariant") ; | |
4651 // First, demultiplex/decode time arguments | |
4652 if (time < 0) { // don't wait | |
4653 return; | |
4654 } | |
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
4655 else if (time == 0 && !isAbsolute) { |
0 | 4656 time = INFINITE; |
4657 } | |
4658 else if (isAbsolute) { | |
4659 time -= os::javaTimeMillis(); // convert to relative time | |
4660 if (time <= 0) // already elapsed | |
4661 return; | |
4662 } | |
4663 else { // relative | |
4664 time /= 1000000; // Must coarsen from nanos to millis | |
4665 if (time == 0) // Wait for the minimal time unit if zero | |
4666 time = 1; | |
4667 } | |
4668 | |
4669 JavaThread* thread = (JavaThread*)(Thread::current()); | |
4670 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
4671 JavaThread *jt = (JavaThread *)thread; | |
4672 | |
4673 // Don't wait if interrupted or already triggered | |
4674 if (Thread::is_interrupted(thread, false) || | |
4675 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
4676 ResetEvent(_ParkEvent); | |
4677 return; | |
4678 } | |
4679 else { | |
4680 ThreadBlockInVM tbivm(jt); | |
4681 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
4682 jt->set_suspend_equivalent(); | |
4683 | |
4684 WaitForSingleObject(_ParkEvent, time); | |
4685 ResetEvent(_ParkEvent); | |
4686 | |
4687 // If externally suspended while waiting, re-suspend | |
4688 if (jt->handle_special_suspend_equivalent_condition()) { | |
4689 jt->java_suspend_self(); | |
4690 } | |
4691 } | |
4692 } | |
4693 | |
4694 void Parker::unpark() { | |
4695 guarantee (_ParkEvent != NULL, "invariant") ; | |
4696 SetEvent(_ParkEvent); | |
4697 } | |
4698 | |
4699 // Run the specified command in a separate process. Return its exit value, | |
4700 // or -1 on failure (e.g. can't create a new process). | |
4701 int os::fork_and_exec(char* cmd) { | |
4702 STARTUPINFO si; | |
4703 PROCESS_INFORMATION pi; | |
4704 | |
4705 memset(&si, 0, sizeof(si)); | |
4706 si.cb = sizeof(si); | |
4707 memset(&pi, 0, sizeof(pi)); | |
4708 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
4709 cmd, // command line | |
4710 NULL, // process security attribute | |
4711 NULL, // thread security attribute | |
4712 TRUE, // inherits system handles | |
4713 0, // no creation flags | |
4714 NULL, // use parent's environment block | |
4715 NULL, // use parent's starting directory | |
4716 &si, // (in) startup information | |
4717 &pi); // (out) process information | |
4718 | |
4719 if (rslt) { | |
4720 // Wait until child process exits. | |
4721 WaitForSingleObject(pi.hProcess, INFINITE); | |
4722 | |
4723 DWORD exit_code; | |
4724 GetExitCodeProcess(pi.hProcess, &exit_code); | |
4725 | |
4726 // Close process and thread handles. | |
4727 CloseHandle(pi.hProcess); | |
4728 CloseHandle(pi.hThread); | |
4729 | |
4730 return (int)exit_code; | |
4731 } else { | |
4732 return -1; | |
4733 } | |
4734 } | |
4735 | |
4736 //-------------------------------------------------------------------------------------------------- | |
4737 // Non-product code | |
4738 | |
4739 static int mallocDebugIntervalCounter = 0; | |
4740 static int mallocDebugCounter = 0; | |
4741 bool os::check_heap(bool force) { | |
4742 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
4743 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
4744 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
4745 // wrong; at these points, eax contains the address of the offending block (I think). | |
4746 // To get to the exlicit error message(s) below, just continue twice. | |
4747 HANDLE heap = GetProcessHeap(); | |
4748 { HeapLock(heap); | |
4749 PROCESS_HEAP_ENTRY phe; | |
4750 phe.lpData = NULL; | |
4751 while (HeapWalk(heap, &phe) != 0) { | |
4752 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
4753 !HeapValidate(heap, 0, phe.lpData)) { | |
4754 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
4755 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
4756 fatal("corrupted C heap"); | |
4757 } | |
4758 } | |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
4759 DWORD err = GetLastError(); |
0 | 4760 if (err != ERROR_NO_MORE_ITEMS && err != ERROR_CALL_NOT_IMPLEMENTED) { |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
4761 fatal(err_msg("heap walk aborted with error %d", err)); |
0 | 4762 } |
4763 HeapUnlock(heap); | |
4764 } | |
4765 mallocDebugIntervalCounter = 0; | |
4766 } | |
4767 return true; | |
4768 } | |
4769 | |
4770 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4771 bool os::find(address addr, outputStream* st) { |
0 | 4772 // Nothing yet |
4773 return false; | |
4774 } | |
4775 | |
4776 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
4777 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
4778 | |
4779 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
4780 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
4781 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
4782 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
4783 | |
4784 if (os::is_memory_serialize_page(thread, addr)) | |
4785 return EXCEPTION_CONTINUE_EXECUTION; | |
4786 } | |
4787 | |
4788 return EXCEPTION_CONTINUE_SEARCH; | |
4789 } | |
4790 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4791 // We don't build a headless jre for Windows |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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parents:
1552
diff
changeset
|
4792 bool os::is_headless_jre() { return false; } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4793 |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4794 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4795 typedef CRITICAL_SECTION mutex_t; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4796 #define mutexInit(m) InitializeCriticalSection(m) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4797 #define mutexDestroy(m) DeleteCriticalSection(m) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4798 #define mutexLock(m) EnterCriticalSection(m) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4799 #define mutexUnlock(m) LeaveCriticalSection(m) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4800 |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4801 static bool sock_initialized = FALSE; |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4802 static mutex_t sockFnTableMutex; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4803 |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4804 static void initSock() { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4805 WSADATA wsadata; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4806 |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4807 if (!os::WinSock2Dll::WinSock2Available()) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4808 jio_fprintf(stderr, "Could not load Winsock 2 (error: %d)\n", |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4809 ::GetLastError()); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4810 return; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4811 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4812 if (sock_initialized == TRUE) return; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4813 |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4814 ::mutexInit(&sockFnTableMutex); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4815 ::mutexLock(&sockFnTableMutex); |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4816 if (os::WinSock2Dll::WSAStartup(MAKEWORD(1,1), &wsadata) != 0) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4817 jio_fprintf(stderr, "Could not initialize Winsock\n"); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4818 } |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4819 sock_initialized = TRUE; |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4820 ::mutexUnlock(&sockFnTableMutex); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4821 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4822 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4823 struct hostent* os::get_host_by_name(char* name) { |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4824 if (!sock_initialized) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4825 initSock(); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4826 } |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4827 if (!os::WinSock2Dll::WinSock2Available()) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4828 return NULL; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4829 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4830 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4831 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4832 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4833 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4834 int os::socket_close(int fd) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4835 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4836 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4837 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4838 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4839 int os::socket_available(int fd, jint *pbytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4840 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4841 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4842 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4843 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4844 int os::socket(int domain, int type, int protocol) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4845 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4846 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4847 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4848 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4849 int os::listen(int fd, int count) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4850 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4851 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4852 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4853 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4854 int os::connect(int fd, struct sockaddr* him, socklen_t len) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4855 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4856 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4857 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4858 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4859 int os::accept(int fd, struct sockaddr* him, socklen_t* len) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4860 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4861 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4862 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4863 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4864 int os::sendto(int fd, char* buf, size_t len, uint flags, |
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4865 struct sockaddr* to, socklen_t tolen) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4866 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4867 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4868 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4869 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4870 int os::recvfrom(int fd, char *buf, size_t nBytes, uint flags, |
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4871 sockaddr* from, socklen_t* fromlen) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4872 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4873 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4874 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4875 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4876 int os::recv(int fd, char* buf, size_t nBytes, uint flags) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4877 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4878 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4879 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4880 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4881 int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4882 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4883 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4884 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4885 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4886 int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4887 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4888 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4889 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4890 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4891 int os::timeout(int fd, long timeout) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4892 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4893 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4894 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4895 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4896 int os::get_host_name(char* name, int namelen) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4897 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4898 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4899 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4900 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4901 int os::socket_shutdown(int fd, int howto) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4902 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4903 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4904 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4905 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4906 int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4907 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4908 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4909 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4910 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4911 int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4912 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4913 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4914 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4915 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4916 int os::get_sock_opt(int fd, int level, int optname, |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4917 char* optval, socklen_t* optlen) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4918 ShouldNotReachHere(); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4919 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4920 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4921 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4922 int os::set_sock_opt(int fd, int level, int optname, |
4717
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7091417: recvfrom's 6th input should be of type socklen_t
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|
4923 const char* optval, socklen_t optlen) { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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|
4924 ShouldNotReachHere(); |
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6348631: remove the use of the HPI library from Hotspot
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diff
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|
4925 return 0; |
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|
4926 } |
3833
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4927 |
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|
4928 |
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4929 // Kernel32 API |
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4930 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
3885 | 4931 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
4932 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
4933 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
4934 | |
3833
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4935 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
3885 | 4936 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
4937 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
4938 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
3833
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4939 BOOL os::Kernel32Dll::initialized = FALSE; |
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4940 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
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4941 assert(initialized && _GetLargePageMinimum != NULL, |
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4942 "GetLargePageMinimumAvailable() not yet called"); |
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4943 return _GetLargePageMinimum(); |
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4944 } |
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4945 |
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4946 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
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4947 if (!initialized) { |
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4948 initialize(); |
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4949 } |
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4950 return _GetLargePageMinimum != NULL; |
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4951 } |
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4952 |
3885 | 4953 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
4954 if (!initialized) { | |
4955 initialize(); | |
4956 } | |
4957 return _VirtualAllocExNuma != NULL; | |
4958 } | |
4959 | |
4960 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
4961 assert(initialized && _VirtualAllocExNuma != NULL, | |
4962 "NUMACallsAvailable() not yet called"); | |
4963 | |
4964 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
4965 } | |
4966 | |
4967 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
4968 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
4969 "NUMACallsAvailable() not yet called"); | |
4970 | |
4971 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
4972 } | |
4973 | |
4974 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
4975 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
4976 "NUMACallsAvailable() not yet called"); | |
4977 | |
4978 return _GetNumaNodeProcessorMask(node, proc_mask); | |
4979 } | |
4980 | |
4981 | |
4982 void os::Kernel32Dll::initializeCommon() { | |
4983 if (!initialized) { | |
4984 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
4985 assert(handle != NULL, "Just check"); | |
4986 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
4987 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
4988 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
4989 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
4990 initialized = TRUE; | |
4991 } | |
4992 } | |
4993 | |
4994 | |
3833
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4995 |
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|
4996 #ifndef JDK6_OR_EARLIER |
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4997 |
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4998 void os::Kernel32Dll::initialize() { |
3885 | 4999 initializeCommon(); |
3833
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5000 } |
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5001 |
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|
5002 |
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|
5003 // Kernel32 API |
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|
5004 inline BOOL os::Kernel32Dll::SwitchToThread() { |
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|
5005 return ::SwitchToThread(); |
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5006 } |
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|
5007 |
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|
5008 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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|
5009 return true; |
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|
5010 } |
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|
5011 |
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|
5012 // Help tools |
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|
5013 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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|
5014 return true; |
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|
5015 } |
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|
5016 |
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|
5017 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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|
5018 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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|
5019 } |
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|
5020 |
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|
5021 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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|
5022 return ::Module32First(hSnapshot, lpme); |
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|
5023 } |
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|
5024 |
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|
5025 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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|
5026 return ::Module32Next(hSnapshot, lpme); |
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|
5027 } |
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changeset
|
5028 |
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3800
diff
changeset
|
5029 |
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|
5030 inline BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
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|
5031 return true; |
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|
5032 } |
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|
5033 |
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|
5034 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
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|
5035 ::GetNativeSystemInfo(lpSystemInfo); |
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|
5036 } |
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|
5037 |
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|
5038 // PSAPI API |
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|
5039 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
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|
5040 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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|
5041 } |
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|
5042 |
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|
5043 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
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|
5044 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
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|
5045 } |
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|
5046 |
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|
5047 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
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|
5048 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
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|
5049 } |
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|
5050 |
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|
5051 inline BOOL os::PSApiDll::PSApiAvailable() { |
b1cbb0907b36
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|
5052 return true; |
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|
5053 } |
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|
5054 |
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|
5055 |
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|
5056 // WinSock2 API |
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|
5057 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
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|
5058 return ::WSAStartup(wVersionRequested, lpWSAData); |
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|
5059 } |
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|
5060 |
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|
5061 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
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|
5062 return ::gethostbyname(name); |
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|
5063 } |
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|
5064 |
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|
5065 inline BOOL os::WinSock2Dll::WinSock2Available() { |
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|
5066 return true; |
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|
5067 } |
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|
5068 |
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|
5069 // Advapi API |
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|
5070 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
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|
5071 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
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5072 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
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|
5073 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
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5074 BufferLength, PreviousState, ReturnLength); |
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5075 } |
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5076 |
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5077 inline BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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5078 PHANDLE TokenHandle) { |
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5079 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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5080 } |
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5081 |
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5082 inline BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
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5083 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
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5084 } |
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5085 |
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5086 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
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5087 return true; |
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5088 } |
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5089 |
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5090 #else |
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5091 // Kernel32 API |
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5092 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
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5093 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
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5094 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
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5095 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
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5096 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
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5097 |
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5098 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
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5099 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
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5100 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
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5101 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
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5102 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
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5103 |
3885 | 5104 |
3833
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5105 void os::Kernel32Dll::initialize() { |
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5106 if (!initialized) { |
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5107 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
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5108 assert(handle != NULL, "Just check"); |
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5109 |
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5110 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
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5111 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
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5112 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
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5113 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
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5114 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
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5115 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
3885 | 5116 initializeCommon(); // resolve the functions that always need resolving |
3833
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5117 |
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5118 initialized = TRUE; |
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5119 } |
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5120 } |
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5121 |
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5122 BOOL os::Kernel32Dll::SwitchToThread() { |
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5123 assert(initialized && _SwitchToThread != NULL, |
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5124 "SwitchToThreadAvailable() not yet called"); |
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5125 return _SwitchToThread(); |
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5126 } |
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|
5127 |
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|
5128 |
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5129 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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5130 if (!initialized) { |
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5131 initialize(); |
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5132 } |
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5133 return _SwitchToThread != NULL; |
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5134 } |
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|
5135 |
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|
5136 // Help tools |
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5137 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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5138 if (!initialized) { |
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5139 initialize(); |
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5140 } |
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5141 return _CreateToolhelp32Snapshot != NULL && |
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5142 _Module32First != NULL && |
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5143 _Module32Next != NULL; |
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5144 } |
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|
5145 |
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5146 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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5147 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
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5148 "HelpToolsAvailable() not yet called"); |
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|
5149 |
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5150 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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5151 } |
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|
5152 |
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|
5153 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5154 assert(initialized && _Module32First != NULL, |
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5155 "HelpToolsAvailable() not yet called"); |
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|
5156 |
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5157 return _Module32First(hSnapshot, lpme); |
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5158 } |
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|
5159 |
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5160 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5161 assert(initialized && _Module32Next != NULL, |
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5162 "HelpToolsAvailable() not yet called"); |
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5163 |
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5164 return _Module32Next(hSnapshot, lpme); |
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5165 } |
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5166 |
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|
5167 |
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5168 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
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5169 if (!initialized) { |
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5170 initialize(); |
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5171 } |
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5172 return _GetNativeSystemInfo != NULL; |
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5173 } |
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5174 |
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5175 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
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5176 assert(initialized && _GetNativeSystemInfo != NULL, |
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5177 "GetNativeSystemInfoAvailable() not yet called"); |
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5178 |
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5179 _GetNativeSystemInfo(lpSystemInfo); |
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5180 } |
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5181 |
3885 | 5182 |
5183 | |
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5184 // PSAPI API |
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5185 |
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5186 |
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5187 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
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5188 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
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5189 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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5190 |
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5191 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
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5192 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
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5193 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
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5194 BOOL os::PSApiDll::initialized = FALSE; |
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5195 |
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5196 void os::PSApiDll::initialize() { |
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5197 if (!initialized) { |
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5198 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
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5199 if (handle != NULL) { |
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5200 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
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5201 "EnumProcessModules"); |
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5202 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
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5203 "GetModuleFileNameExA"); |
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5204 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
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5205 "GetModuleInformation"); |
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5206 } |
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5207 initialized = TRUE; |
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5208 } |
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5209 } |
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5210 |
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5211 |
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5212 |
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5213 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
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5214 assert(initialized && _EnumProcessModules != NULL, |
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5215 "PSApiAvailable() not yet called"); |
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5216 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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5217 } |
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5218 |
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5219 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
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5220 assert(initialized && _GetModuleFileNameEx != NULL, |
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5221 "PSApiAvailable() not yet called"); |
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5222 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
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5223 } |
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5224 |
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5225 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
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5226 assert(initialized && _GetModuleInformation != NULL, |
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5227 "PSApiAvailable() not yet called"); |
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5228 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
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5229 } |
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5230 |
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5231 BOOL os::PSApiDll::PSApiAvailable() { |
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5232 if (!initialized) { |
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5233 initialize(); |
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5234 } |
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5235 return _EnumProcessModules != NULL && |
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5236 _GetModuleFileNameEx != NULL && |
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5237 _GetModuleInformation != NULL; |
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5238 } |
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5239 |
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5240 |
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5241 // WinSock2 API |
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5242 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
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5243 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
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5244 |
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5245 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
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5246 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
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5247 BOOL os::WinSock2Dll::initialized = FALSE; |
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5248 |
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5249 void os::WinSock2Dll::initialize() { |
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5250 if (!initialized) { |
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5251 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
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5252 if (handle != NULL) { |
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5253 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
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5254 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
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5255 } |
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5256 initialized = TRUE; |
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5257 } |
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5258 } |
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|
5259 |
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|
5260 |
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5261 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
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5262 assert(initialized && _WSAStartup != NULL, |
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5263 "WinSock2Available() not yet called"); |
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5264 return _WSAStartup(wVersionRequested, lpWSAData); |
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5265 } |
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|
5266 |
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5267 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
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5268 assert(initialized && _gethostbyname != NULL, |
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5269 "WinSock2Available() not yet called"); |
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5270 return _gethostbyname(name); |
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5271 } |
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|
5272 |
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5273 BOOL os::WinSock2Dll::WinSock2Available() { |
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5274 if (!initialized) { |
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5275 initialize(); |
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5276 } |
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5277 return _WSAStartup != NULL && |
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5278 _gethostbyname != NULL; |
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5279 } |
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|
5280 |
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5281 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
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5282 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
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5283 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
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5284 |
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5285 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
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5286 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
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5287 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
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5288 BOOL os::Advapi32Dll::initialized = FALSE; |
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5289 |
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5290 void os::Advapi32Dll::initialize() { |
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5291 if (!initialized) { |
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5292 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
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5293 if (handle != NULL) { |
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5294 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
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5295 "AdjustTokenPrivileges"); |
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5296 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
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5297 "OpenProcessToken"); |
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5298 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
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5299 "LookupPrivilegeValueA"); |
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5300 } |
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5301 initialized = TRUE; |
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5302 } |
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5303 } |
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5304 |
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5305 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
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5306 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
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5307 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
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5308 assert(initialized && _AdjustTokenPrivileges != NULL, |
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5309 "AdvapiAvailable() not yet called"); |
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5310 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
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5311 BufferLength, PreviousState, ReturnLength); |
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5312 } |
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5313 |
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5314 BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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5315 PHANDLE TokenHandle) { |
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5316 assert(initialized && _OpenProcessToken != NULL, |
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5317 "AdvapiAvailable() not yet called"); |
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5318 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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5319 } |
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5320 |
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5321 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
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5322 assert(initialized && _LookupPrivilegeValue != NULL, |
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5323 "AdvapiAvailable() not yet called"); |
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5324 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
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5325 } |
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5326 |
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5327 BOOL os::Advapi32Dll::AdvapiAvailable() { |
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5328 if (!initialized) { |
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5329 initialize(); |
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5330 } |
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5331 return _AdjustTokenPrivileges != NULL && |
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5332 _OpenProcessToken != NULL && |
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5333 _LookupPrivilegeValue != NULL; |
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5334 } |
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5335 |
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5336 #endif |