Mercurial > hg > graal-compiler
annotate src/os/windows/vm/os_windows.cpp @ 6916:5ec0c42da025
7188234: Deprecate VM command line options
Summary: Remove support for the UseVectoredExceptions flag
Reviewed-by: jcoomes, kamg
Contributed-by: harold.seigel@oracle.com
author | coleenp |
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date | Thu, 25 Oct 2012 16:33:15 -0400 |
parents | bf2edd3c9b0f |
children | e522a00b91aa 6cb0d32b828b |
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 | |
6916 | 25 // Must be at least Windows 2000 or XP to use 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 | |
0 | 72 |
73 #ifdef _DEBUG | |
74 #include <crtdbg.h> | |
75 #endif | |
76 | |
77 | |
78 #include <windows.h> | |
79 #include <sys/types.h> | |
80 #include <sys/stat.h> | |
81 #include <sys/timeb.h> | |
82 #include <objidl.h> | |
83 #include <shlobj.h> | |
84 | |
85 #include <malloc.h> | |
86 #include <signal.h> | |
87 #include <direct.h> | |
88 #include <errno.h> | |
89 #include <fcntl.h> | |
90 #include <io.h> | |
91 #include <process.h> // For _beginthreadex(), _endthreadex() | |
92 #include <imagehlp.h> // For os::dll_address_to_function_name | |
93 /* for enumerating dll libraries */ | |
94 #include <vdmdbg.h> | |
95 | |
96 // for timer info max values which include all bits | |
97 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
98 | |
99 // For DLL loading/load error detection | |
100 // Values of PE COFF | |
101 #define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c | |
102 #define IMAGE_FILE_SIGNATURE_LENGTH 4 | |
103 | |
104 static HANDLE main_process; | |
105 static HANDLE main_thread; | |
106 static int main_thread_id; | |
107 | |
108 static FILETIME process_creation_time; | |
109 static FILETIME process_exit_time; | |
110 static FILETIME process_user_time; | |
111 static FILETIME process_kernel_time; | |
112 | |
113 #ifdef _M_IA64 | |
114 #define __CPU__ ia64 | |
115 #elif _M_AMD64 | |
116 #define __CPU__ amd64 | |
117 #else | |
118 #define __CPU__ i486 | |
119 #endif | |
120 | |
121 // save DLL module handle, used by GetModuleFileName | |
122 | |
123 HINSTANCE vm_lib_handle; | |
124 | |
125 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
126 switch (reason) { | |
127 case DLL_PROCESS_ATTACH: | |
128 vm_lib_handle = hinst; | |
129 if(ForceTimeHighResolution) | |
130 timeBeginPeriod(1L); | |
131 break; | |
132 case DLL_PROCESS_DETACH: | |
133 if(ForceTimeHighResolution) | |
134 timeEndPeriod(1L); | |
135 break; | |
136 default: | |
137 break; | |
138 } | |
139 return true; | |
140 } | |
141 | |
142 static inline double fileTimeAsDouble(FILETIME* time) { | |
143 const double high = (double) ((unsigned int) ~0); | |
144 const double split = 10000000.0; | |
145 double result = (time->dwLowDateTime / split) + | |
146 time->dwHighDateTime * (high/split); | |
147 return result; | |
148 } | |
149 | |
150 // Implementation of os | |
151 | |
152 bool os::getenv(const char* name, char* buffer, int len) { | |
153 int result = GetEnvironmentVariable(name, buffer, len); | |
154 return result > 0 && result < len; | |
155 } | |
156 | |
157 | |
158 // No setuid programs under Windows. | |
159 bool os::have_special_privileges() { | |
160 return false; | |
161 } | |
162 | |
163 | |
164 // This method is a periodic task to check for misbehaving JNI applications | |
165 // under CheckJNI, we can add any periodic checks here. | |
166 // For Windows at the moment does nothing | |
167 void os::run_periodic_checks() { | |
168 return; | |
169 } | |
170 | |
171 #ifndef _WIN64 | |
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172 // previous UnhandledExceptionFilter, if there is one |
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173 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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174 |
0 | 175 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
176 #endif | |
177 void os::init_system_properties_values() { | |
178 /* sysclasspath, java_home, dll_dir */ | |
179 { | |
180 char *home_path; | |
181 char *dll_path; | |
182 char *pslash; | |
183 char *bin = "\\bin"; | |
184 char home_dir[MAX_PATH]; | |
185 | |
186 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
187 os::jvm_path(home_dir, sizeof(home_dir)); | |
188 // Found the full path to jvm[_g].dll. | |
189 // Now cut the path to <java_home>/jre if we can. | |
190 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
191 pslash = strrchr(home_dir, '\\'); | |
192 if (pslash != NULL) { | |
193 *pslash = '\0'; /* get rid of \{client|server} */ | |
194 pslash = strrchr(home_dir, '\\'); | |
195 if (pslash != NULL) | |
196 *pslash = '\0'; /* get rid of \bin */ | |
197 } | |
198 } | |
199 | |
6197 | 200 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1, mtInternal); |
0 | 201 if (home_path == NULL) |
202 return; | |
203 strcpy(home_path, home_dir); | |
204 Arguments::set_java_home(home_path); | |
205 | |
6197 | 206 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1, mtInternal); |
0 | 207 if (dll_path == NULL) |
208 return; | |
209 strcpy(dll_path, home_dir); | |
210 strcat(dll_path, bin); | |
211 Arguments::set_dll_dir(dll_path); | |
212 | |
213 if (!set_boot_path('\\', ';')) | |
214 return; | |
215 } | |
216 | |
217 /* library_path */ | |
218 #define EXT_DIR "\\lib\\ext" | |
219 #define BIN_DIR "\\bin" | |
220 #define PACKAGE_DIR "\\Sun\\Java" | |
221 { | |
222 /* Win32 library search order (See the documentation for LoadLibrary): | |
223 * | |
224 * 1. The directory from which application is loaded. | |
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225 * 2. The system wide Java Extensions directory (Java only) |
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226 * 3. System directory (GetSystemDirectory) |
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227 * 4. Windows directory (GetWindowsDirectory) |
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228 * 5. The PATH environment variable |
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229 * 6. The current directory |
0 | 230 */ |
231 | |
232 char *library_path; | |
233 char tmp[MAX_PATH]; | |
234 char *path_str = ::getenv("PATH"); | |
235 | |
236 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
6197 | 237 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10, mtInternal); |
0 | 238 |
239 library_path[0] = '\0'; | |
240 | |
241 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
242 *(strrchr(tmp, '\\')) = '\0'; | |
243 strcat(library_path, tmp); | |
244 | |
245 GetWindowsDirectory(tmp, sizeof(tmp)); | |
246 strcat(library_path, ";"); | |
247 strcat(library_path, tmp); | |
248 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
249 | |
250 GetSystemDirectory(tmp, sizeof(tmp)); | |
251 strcat(library_path, ";"); | |
252 strcat(library_path, tmp); | |
253 | |
254 GetWindowsDirectory(tmp, sizeof(tmp)); | |
255 strcat(library_path, ";"); | |
256 strcat(library_path, tmp); | |
257 | |
258 if (path_str) { | |
259 strcat(library_path, ";"); | |
260 strcat(library_path, path_str); | |
261 } | |
262 | |
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263 strcat(library_path, ";."); |
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264 |
0 | 265 Arguments::set_library_path(library_path); |
6197 | 266 FREE_C_HEAP_ARRAY(char, library_path, mtInternal); |
0 | 267 } |
268 | |
269 /* Default extensions directory */ | |
270 { | |
271 char path[MAX_PATH]; | |
272 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
273 GetWindowsDirectory(path, MAX_PATH); | |
274 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
275 path, PACKAGE_DIR, EXT_DIR); | |
276 Arguments::set_ext_dirs(buf); | |
277 } | |
278 #undef EXT_DIR | |
279 #undef BIN_DIR | |
280 #undef PACKAGE_DIR | |
281 | |
282 /* Default endorsed standards directory. */ | |
283 { | |
284 #define ENDORSED_DIR "\\lib\\endorsed" | |
285 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
6197 | 286 char * buf = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 287 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); |
288 Arguments::set_endorsed_dirs(buf); | |
289 #undef ENDORSED_DIR | |
290 } | |
291 | |
292 #ifndef _WIN64 | |
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293 // set our UnhandledExceptionFilter and save any previous one |
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294 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
0 | 295 #endif |
296 | |
297 // Done | |
298 return; | |
299 } | |
300 | |
301 void os::breakpoint() { | |
302 DebugBreak(); | |
303 } | |
304 | |
305 // Invoked from the BREAKPOINT Macro | |
306 extern "C" void breakpoint() { | |
307 os::breakpoint(); | |
308 } | |
309 | |
6197 | 310 /* |
311 * RtlCaptureStackBackTrace Windows API may not exist prior to Windows XP. | |
312 * So far, this method is only used by Native Memory Tracking, which is | |
313 * only supported on Windows XP or later. | |
314 */ | |
315 address os::get_caller_pc(int n) { | |
316 #ifdef _NMT_NOINLINE_ | |
317 n ++; | |
318 #endif | |
319 address pc; | |
320 if (os::Kernel32Dll::RtlCaptureStackBackTrace(n + 1, 1, (PVOID*)&pc, NULL) == 1) { | |
321 return pc; | |
322 } | |
323 return NULL; | |
324 } | |
325 | |
326 | |
0 | 327 // os::current_stack_base() |
328 // | |
329 // Returns the base of the stack, which is the stack's | |
330 // starting address. This function must be called | |
331 // while running on the stack of the thread being queried. | |
332 | |
333 address os::current_stack_base() { | |
334 MEMORY_BASIC_INFORMATION minfo; | |
335 address stack_bottom; | |
336 size_t stack_size; | |
337 | |
338 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
339 stack_bottom = (address)minfo.AllocationBase; | |
340 stack_size = minfo.RegionSize; | |
341 | |
342 // Add up the sizes of all the regions with the same | |
343 // AllocationBase. | |
344 while( 1 ) | |
345 { | |
346 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
347 if ( stack_bottom == (address)minfo.AllocationBase ) | |
348 stack_size += minfo.RegionSize; | |
349 else | |
350 break; | |
351 } | |
352 | |
353 #ifdef _M_IA64 | |
354 // IA64 has memory and register stacks | |
355 stack_size = stack_size / 2; | |
356 #endif | |
357 return stack_bottom + stack_size; | |
358 } | |
359 | |
360 size_t os::current_stack_size() { | |
361 size_t sz; | |
362 MEMORY_BASIC_INFORMATION minfo; | |
363 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
364 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
365 return sz; | |
366 } | |
367 | |
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368 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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369 const struct tm* time_struct_ptr = localtime(clock); |
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370 if (time_struct_ptr != NULL) { |
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371 *res = *time_struct_ptr; |
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372 return res; |
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373 } |
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374 return NULL; |
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375 } |
0 | 376 |
377 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
378 | |
379 // Thread start routine for all new Java threads | |
380 static unsigned __stdcall java_start(Thread* thread) { | |
381 // Try to randomize the cache line index of hot stack frames. | |
382 // This helps when threads of the same stack traces evict each other's | |
383 // cache lines. The threads can be either from the same JVM instance, or | |
384 // from different JVM instances. The benefit is especially true for | |
385 // processors with hyperthreading technology. | |
386 static int counter = 0; | |
387 int pid = os::current_process_id(); | |
388 _alloca(((pid ^ counter++) & 7) * 128); | |
389 | |
390 OSThread* osthr = thread->osthread(); | |
391 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
392 | |
393 if (UseNUMA) { | |
394 int lgrp_id = os::numa_get_group_id(); | |
395 if (lgrp_id != -1) { | |
396 thread->set_lgrp_id(lgrp_id); | |
397 } | |
398 } | |
399 | |
400 | |
6916 | 401 // Install a win32 structured exception handler around every thread created |
402 // by VM, so VM can genrate error dump when an exception occurred in non- | |
403 // Java thread (e.g. VM thread). | |
404 __try { | |
405 thread->run(); | |
406 } __except(topLevelExceptionFilter( | |
407 (_EXCEPTION_POINTERS*)_exception_info())) { | |
408 // Nothing to do. | |
0 | 409 } |
410 | |
411 // One less thread is executing | |
412 // When the VMThread gets here, the main thread may have already exited | |
413 // which frees the CodeHeap containing the Atomic::add code | |
414 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
415 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
416 } | |
417 | |
418 return 0; | |
419 } | |
420 | |
421 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
422 // Allocate the OSThread object | |
423 OSThread* osthread = new OSThread(NULL, NULL); | |
424 if (osthread == NULL) return NULL; | |
425 | |
426 // Initialize support for Java interrupts | |
427 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
428 if (interrupt_event == NULL) { | |
429 delete osthread; | |
430 return NULL; | |
431 } | |
432 osthread->set_interrupt_event(interrupt_event); | |
433 | |
434 // Store info on the Win32 thread into the OSThread | |
435 osthread->set_thread_handle(thread_handle); | |
436 osthread->set_thread_id(thread_id); | |
437 | |
438 if (UseNUMA) { | |
439 int lgrp_id = os::numa_get_group_id(); | |
440 if (lgrp_id != -1) { | |
441 thread->set_lgrp_id(lgrp_id); | |
442 } | |
443 } | |
444 | |
445 // Initial thread state is INITIALIZED, not SUSPENDED | |
446 osthread->set_state(INITIALIZED); | |
447 | |
448 return osthread; | |
449 } | |
450 | |
451 | |
452 bool os::create_attached_thread(JavaThread* thread) { | |
453 #ifdef ASSERT | |
454 thread->verify_not_published(); | |
455 #endif | |
456 HANDLE thread_h; | |
457 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
458 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
459 fatal("DuplicateHandle failed\n"); | |
460 } | |
461 OSThread* osthread = create_os_thread(thread, thread_h, | |
462 (int)current_thread_id()); | |
463 if (osthread == NULL) { | |
464 return false; | |
465 } | |
466 | |
467 // Initial thread state is RUNNABLE | |
468 osthread->set_state(RUNNABLE); | |
469 | |
470 thread->set_osthread(osthread); | |
471 return true; | |
472 } | |
473 | |
474 bool os::create_main_thread(JavaThread* thread) { | |
475 #ifdef ASSERT | |
476 thread->verify_not_published(); | |
477 #endif | |
478 if (_starting_thread == NULL) { | |
479 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
480 if (_starting_thread == NULL) { | |
481 return false; | |
482 } | |
483 } | |
484 | |
485 // The primordial thread is runnable from the start) | |
486 _starting_thread->set_state(RUNNABLE); | |
487 | |
488 thread->set_osthread(_starting_thread); | |
489 return true; | |
490 } | |
491 | |
492 // Allocate and initialize a new OSThread | |
493 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
494 unsigned thread_id; | |
495 | |
496 // Allocate the OSThread object | |
497 OSThread* osthread = new OSThread(NULL, NULL); | |
498 if (osthread == NULL) { | |
499 return false; | |
500 } | |
501 | |
502 // Initialize support for Java interrupts | |
503 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
504 if (interrupt_event == NULL) { | |
505 delete osthread; | |
506 return NULL; | |
507 } | |
508 osthread->set_interrupt_event(interrupt_event); | |
509 osthread->set_interrupted(false); | |
510 | |
511 thread->set_osthread(osthread); | |
512 | |
513 if (stack_size == 0) { | |
514 switch (thr_type) { | |
515 case os::java_thread: | |
516 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
517 if (JavaThread::stack_size_at_create() > 0) | |
518 stack_size = JavaThread::stack_size_at_create(); | |
519 break; | |
520 case os::compiler_thread: | |
521 if (CompilerThreadStackSize > 0) { | |
522 stack_size = (size_t)(CompilerThreadStackSize * K); | |
523 break; | |
524 } // else fall through: | |
525 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
526 case os::vm_thread: | |
527 case os::pgc_thread: | |
528 case os::cgc_thread: | |
529 case os::watcher_thread: | |
530 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
531 break; | |
532 } | |
533 } | |
534 | |
535 // Create the Win32 thread | |
536 // | |
537 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
538 // does not specify stack size. Instead, it specifies the size of | |
539 // initially committed space. The stack size is determined by | |
540 // PE header in the executable. If the committed "stack_size" is larger | |
541 // than default value in the PE header, the stack is rounded up to the | |
542 // nearest multiple of 1MB. For example if the launcher has default | |
543 // stack size of 320k, specifying any size less than 320k does not | |
544 // affect the actual stack size at all, it only affects the initial | |
545 // commitment. On the other hand, specifying 'stack_size' larger than | |
546 // default value may cause significant increase in memory usage, because | |
547 // not only the stack space will be rounded up to MB, but also the | |
548 // entire space is committed upfront. | |
549 // | |
550 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
551 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
552 // are not supposed to call CreateThread() directly according to MSDN | |
553 // document because JVM uses C runtime library. The good news is that the | |
554 // flag appears to work with _beginthredex() as well. | |
555 | |
556 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
557 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
558 #endif | |
559 | |
560 HANDLE thread_handle = | |
561 (HANDLE)_beginthreadex(NULL, | |
562 (unsigned)stack_size, | |
563 (unsigned (__stdcall *)(void*)) java_start, | |
564 thread, | |
565 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
566 &thread_id); | |
567 if (thread_handle == NULL) { | |
568 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
569 // without the flag. | |
570 thread_handle = | |
571 (HANDLE)_beginthreadex(NULL, | |
572 (unsigned)stack_size, | |
573 (unsigned (__stdcall *)(void*)) java_start, | |
574 thread, | |
575 CREATE_SUSPENDED, | |
576 &thread_id); | |
577 } | |
578 if (thread_handle == NULL) { | |
579 // Need to clean up stuff we've allocated so far | |
580 CloseHandle(osthread->interrupt_event()); | |
581 thread->set_osthread(NULL); | |
582 delete osthread; | |
583 return NULL; | |
584 } | |
585 | |
586 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
587 | |
588 // Store info on the Win32 thread into the OSThread | |
589 osthread->set_thread_handle(thread_handle); | |
590 osthread->set_thread_id(thread_id); | |
591 | |
592 // Initial thread state is INITIALIZED, not SUSPENDED | |
593 osthread->set_state(INITIALIZED); | |
594 | |
595 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
596 return true; | |
597 } | |
598 | |
599 | |
600 // Free Win32 resources related to the OSThread | |
601 void os::free_thread(OSThread* osthread) { | |
602 assert(osthread != NULL, "osthread not set"); | |
603 CloseHandle(osthread->thread_handle()); | |
604 CloseHandle(osthread->interrupt_event()); | |
605 delete osthread; | |
606 } | |
607 | |
608 | |
609 static int has_performance_count = 0; | |
610 static jlong first_filetime; | |
611 static jlong initial_performance_count; | |
612 static jlong performance_frequency; | |
613 | |
614 | |
615 jlong as_long(LARGE_INTEGER x) { | |
616 jlong result = 0; // initialization to avoid warning | |
617 set_high(&result, x.HighPart); | |
618 set_low(&result, x.LowPart); | |
619 return result; | |
620 } | |
621 | |
622 | |
623 jlong os::elapsed_counter() { | |
624 LARGE_INTEGER count; | |
625 if (has_performance_count) { | |
626 QueryPerformanceCounter(&count); | |
627 return as_long(count) - initial_performance_count; | |
628 } else { | |
629 FILETIME wt; | |
630 GetSystemTimeAsFileTime(&wt); | |
631 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
632 } | |
633 } | |
634 | |
635 | |
636 jlong os::elapsed_frequency() { | |
637 if (has_performance_count) { | |
638 return performance_frequency; | |
639 } else { | |
640 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
641 return 10000000; | |
642 } | |
643 } | |
644 | |
645 | |
646 julong os::available_memory() { | |
647 return win32::available_memory(); | |
648 } | |
649 | |
650 julong os::win32::available_memory() { | |
877
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651 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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652 // value if total memory is larger than 4GB |
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653 MEMORYSTATUSEX ms; |
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654 ms.dwLength = sizeof(ms); |
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655 GlobalMemoryStatusEx(&ms); |
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656 |
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657 return (julong)ms.ullAvailPhys; |
0 | 658 } |
659 | |
660 julong os::physical_memory() { | |
661 return win32::physical_memory(); | |
662 } | |
663 | |
664 julong os::allocatable_physical_memory(julong size) { | |
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665 #ifdef _LP64 |
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666 return size; |
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667 #else |
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668 // Limit to 1400m because of the 2gb address space wall |
0 | 669 return MIN2(size, (julong)1400*M); |
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670 #endif |
0 | 671 } |
672 | |
673 // VC6 lacks DWORD_PTR | |
674 #if _MSC_VER < 1300 | |
675 typedef UINT_PTR DWORD_PTR; | |
676 #endif | |
677 | |
678 int os::active_processor_count() { | |
679 DWORD_PTR lpProcessAffinityMask = 0; | |
680 DWORD_PTR lpSystemAffinityMask = 0; | |
681 int proc_count = processor_count(); | |
682 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
683 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
684 // Nof active processors is number of bits in process affinity mask | |
685 int bitcount = 0; | |
686 while (lpProcessAffinityMask != 0) { | |
687 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
688 bitcount++; | |
689 } | |
690 return bitcount; | |
691 } else { | |
692 return proc_count; | |
693 } | |
694 } | |
695 | |
4006 | 696 void os::set_native_thread_name(const char *name) { |
697 // Not yet implemented. | |
698 return; | |
699 } | |
700 | |
0 | 701 bool os::distribute_processes(uint length, uint* distribution) { |
702 // Not yet implemented. | |
703 return false; | |
704 } | |
705 | |
706 bool os::bind_to_processor(uint processor_id) { | |
707 // Not yet implemented. | |
708 return false; | |
709 } | |
710 | |
711 static void initialize_performance_counter() { | |
712 LARGE_INTEGER count; | |
713 if (QueryPerformanceFrequency(&count)) { | |
714 has_performance_count = 1; | |
715 performance_frequency = as_long(count); | |
716 QueryPerformanceCounter(&count); | |
717 initial_performance_count = as_long(count); | |
718 } else { | |
719 has_performance_count = 0; | |
720 FILETIME wt; | |
721 GetSystemTimeAsFileTime(&wt); | |
722 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
723 } | |
724 } | |
725 | |
726 | |
727 double os::elapsedTime() { | |
728 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
729 } | |
730 | |
731 | |
732 // Windows format: | |
733 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
734 // Java format: | |
735 // Java standards require the number of milliseconds since 1/1/1970 | |
736 | |
737 // Constant offset - calculated using offset() | |
738 static jlong _offset = 116444736000000000; | |
739 // Fake time counter for reproducible results when debugging | |
740 static jlong fake_time = 0; | |
741 | |
742 #ifdef ASSERT | |
743 // Just to be safe, recalculate the offset in debug mode | |
744 static jlong _calculated_offset = 0; | |
745 static int _has_calculated_offset = 0; | |
746 | |
747 jlong offset() { | |
748 if (_has_calculated_offset) return _calculated_offset; | |
749 SYSTEMTIME java_origin; | |
750 java_origin.wYear = 1970; | |
751 java_origin.wMonth = 1; | |
752 java_origin.wDayOfWeek = 0; // ignored | |
753 java_origin.wDay = 1; | |
754 java_origin.wHour = 0; | |
755 java_origin.wMinute = 0; | |
756 java_origin.wSecond = 0; | |
757 java_origin.wMilliseconds = 0; | |
758 FILETIME jot; | |
759 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
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760 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
0 | 761 } |
762 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
763 _has_calculated_offset = 1; | |
764 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
765 return _calculated_offset; | |
766 } | |
767 #else | |
768 jlong offset() { | |
769 return _offset; | |
770 } | |
771 #endif | |
772 | |
773 jlong windows_to_java_time(FILETIME wt) { | |
774 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
775 return (a - offset()) / 10000; | |
776 } | |
777 | |
778 FILETIME java_to_windows_time(jlong l) { | |
779 jlong a = (l * 10000) + offset(); | |
780 FILETIME result; | |
781 result.dwHighDateTime = high(a); | |
782 result.dwLowDateTime = low(a); | |
783 return result; | |
784 } | |
785 | |
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786 // For now, we say that Windows does not support vtime. I have no idea |
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787 // whether it can actually be made to (DLD, 9/13/05). |
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788 |
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789 bool os::supports_vtime() { return false; } |
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790 bool os::enable_vtime() { return false; } |
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791 bool os::vtime_enabled() { return false; } |
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792 double os::elapsedVTime() { |
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793 // better than nothing, but not much |
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794 return elapsedTime(); |
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795 } |
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796 |
0 | 797 jlong os::javaTimeMillis() { |
798 if (UseFakeTimers) { | |
799 return fake_time++; | |
800 } else { | |
61 | 801 FILETIME wt; |
802 GetSystemTimeAsFileTime(&wt); | |
803 return windows_to_java_time(wt); | |
0 | 804 } |
805 } | |
806 | |
807 jlong os::javaTimeNanos() { | |
808 if (!has_performance_count) { | |
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809 return javaTimeMillis() * NANOSECS_PER_MILLISEC; // the best we can do. |
0 | 810 } else { |
811 LARGE_INTEGER current_count; | |
812 QueryPerformanceCounter(¤t_count); | |
813 double current = as_long(current_count); | |
814 double freq = performance_frequency; | |
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815 jlong time = (jlong)((current/freq) * NANOSECS_PER_SEC); |
0 | 816 return time; |
817 } | |
818 } | |
819 | |
820 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
821 if (!has_performance_count) { | |
822 // javaTimeMillis() doesn't have much percision, | |
823 // but it is not going to wrap -- so all 64 bits | |
824 info_ptr->max_value = ALL_64_BITS; | |
825 | |
826 // this is a wall clock timer, so may skip | |
827 info_ptr->may_skip_backward = true; | |
828 info_ptr->may_skip_forward = true; | |
829 } else { | |
830 jlong freq = performance_frequency; | |
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831 if (freq < NANOSECS_PER_SEC) { |
0 | 832 // the performance counter is 64 bits and we will |
833 // be multiplying it -- so no wrap in 64 bits | |
834 info_ptr->max_value = ALL_64_BITS; | |
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835 } else if (freq > NANOSECS_PER_SEC) { |
0 | 836 // use the max value the counter can reach to |
837 // determine the max value which could be returned | |
838 julong max_counter = (julong)ALL_64_BITS; | |
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839 info_ptr->max_value = (jlong)(max_counter / (freq / NANOSECS_PER_SEC)); |
0 | 840 } else { |
841 // the performance counter is 64 bits and we will | |
842 // be using it directly -- so no wrap in 64 bits | |
843 info_ptr->max_value = ALL_64_BITS; | |
844 } | |
845 | |
846 // using a counter, so no skipping | |
847 info_ptr->may_skip_backward = false; | |
848 info_ptr->may_skip_forward = false; | |
849 } | |
850 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
851 } | |
852 | |
853 char* os::local_time_string(char *buf, size_t buflen) { | |
854 SYSTEMTIME st; | |
855 GetLocalTime(&st); | |
856 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
857 st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); | |
858 return buf; | |
859 } | |
860 | |
861 bool os::getTimesSecs(double* process_real_time, | |
862 double* process_user_time, | |
863 double* process_system_time) { | |
864 HANDLE h_process = GetCurrentProcess(); | |
865 FILETIME create_time, exit_time, kernel_time, user_time; | |
866 BOOL result = GetProcessTimes(h_process, | |
867 &create_time, | |
868 &exit_time, | |
869 &kernel_time, | |
870 &user_time); | |
871 if (result != 0) { | |
872 FILETIME wt; | |
873 GetSystemTimeAsFileTime(&wt); | |
874 jlong rtc_millis = windows_to_java_time(wt); | |
875 jlong user_millis = windows_to_java_time(user_time); | |
876 jlong system_millis = windows_to_java_time(kernel_time); | |
877 *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS); | |
878 *process_user_time = ((double) user_millis) / ((double) MILLIUNITS); | |
879 *process_system_time = ((double) system_millis) / ((double) MILLIUNITS); | |
880 return true; | |
881 } else { | |
882 return false; | |
883 } | |
884 } | |
885 | |
886 void os::shutdown() { | |
887 | |
888 // allow PerfMemory to attempt cleanup of any persistent resources | |
889 perfMemory_exit(); | |
890 | |
891 // flush buffered output, finish log files | |
892 ostream_abort(); | |
893 | |
894 // Check for abort hook | |
895 abort_hook_t abort_hook = Arguments::abort_hook(); | |
896 if (abort_hook != NULL) { | |
897 abort_hook(); | |
898 } | |
899 } | |
900 | |
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901 |
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902 static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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903 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
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904 |
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905 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { |
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906 HINSTANCE dbghelp; |
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907 EXCEPTION_POINTERS ep; |
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908 MINIDUMP_EXCEPTION_INFORMATION mei; |
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909 MINIDUMP_EXCEPTION_INFORMATION* pmei; |
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910 |
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911 HANDLE hProcess = GetCurrentProcess(); |
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912 DWORD processId = GetCurrentProcessId(); |
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913 HANDLE dumpFile; |
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914 MINIDUMP_TYPE dumpType; |
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915 static const char* cwd; |
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916 |
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917 // If running on a client version of Windows and user has not explicitly enabled dumping |
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918 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) { |
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919 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false); |
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920 return; |
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921 // If running on a server version of Windows and user has explictly disabled dumping |
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922 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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923 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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924 return; |
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925 } |
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926 |
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927 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0); |
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928 |
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929 if (dbghelp == NULL) { |
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930 VMError::report_coredump_status("Failed to load dbghelp.dll", false); |
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931 return; |
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932 } |
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933 |
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934 _MiniDumpWriteDump = CAST_TO_FN_PTR( |
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935 BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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936 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION), |
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937 GetProcAddress(dbghelp, "MiniDumpWriteDump")); |
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938 |
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939 if (_MiniDumpWriteDump == NULL) { |
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940 VMError::report_coredump_status("Failed to find MiniDumpWriteDump() in module dbghelp.dll", false); |
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941 return; |
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942 } |
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943 |
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944 dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
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945 |
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946 // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
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947 // API_VERSION_NUMBER 11 or higher contains the ones we want though |
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948 #if API_VERSION_NUMBER >= 11 |
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949 dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
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950 MiniDumpWithUnloadedModules); |
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951 #endif |
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952 |
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953 cwd = get_current_directory(NULL, 0); |
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954 jio_snprintf(buffer, bufferSize, "%s\\hs_err_pid%u.mdmp",cwd, current_process_id()); |
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955 dumpFile = CreateFile(buffer, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
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956 |
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957 if (dumpFile == INVALID_HANDLE_VALUE) { |
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958 VMError::report_coredump_status("Failed to create file for dumping", false); |
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959 return; |
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960 } |
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961 if (exceptionRecord != NULL && contextRecord != NULL) { |
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962 ep.ContextRecord = (PCONTEXT) contextRecord; |
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963 ep.ExceptionRecord = (PEXCEPTION_RECORD) exceptionRecord; |
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964 |
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965 mei.ThreadId = GetCurrentThreadId(); |
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966 mei.ExceptionPointers = &ep; |
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967 pmei = &mei; |
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968 } else { |
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969 pmei = NULL; |
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970 } |
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971 |
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972 |
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973 // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
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974 // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
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975 if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == false && |
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976 _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == false) { |
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977 VMError::report_coredump_status("Call to MiniDumpWriteDump() failed", false); |
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978 } else { |
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979 VMError::report_coredump_status(buffer, true); |
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980 } |
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981 |
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982 CloseHandle(dumpFile); |
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983 } |
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984 |
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985 |
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986 |
0 | 987 void os::abort(bool dump_core) |
988 { | |
989 os::shutdown(); | |
990 // no core dump on Windows | |
991 ::exit(1); | |
992 } | |
993 | |
994 // Die immediately, no exit hook, no abort hook, no cleanup. | |
995 void os::die() { | |
996 _exit(-1); | |
997 } | |
998 | |
999 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
1000 // * dirent_md.c 1.15 00/02/02 | |
1001 // | |
1002 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
1003 | |
1004 /* Caller must have already run dirname through JVM_NativePath, which removes | |
1005 duplicate slashes and converts all instances of '/' into '\\'. */ | |
1006 | |
1007 DIR * | |
1008 os::opendir(const char *dirname) | |
1009 { | |
1010 assert(dirname != NULL, "just checking"); // hotspot change | |
6197 | 1011 DIR *dirp = (DIR *)malloc(sizeof(DIR), mtInternal); |
0 | 1012 DWORD fattr; // hotspot change |
1013 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
1014 | |
1015 if (dirp == 0) { | |
1016 errno = ENOMEM; | |
1017 return 0; | |
1018 } | |
1019 | |
1020 /* | |
1021 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
1022 * as a directory in FindFirstFile(). We detect this case here and | |
1023 * prepend the current drive name. | |
1024 */ | |
1025 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
1026 alt_dirname[0] = _getdrive() + 'A' - 1; | |
1027 alt_dirname[1] = ':'; | |
1028 alt_dirname[2] = '\\'; | |
1029 alt_dirname[3] = '\0'; | |
1030 dirname = alt_dirname; | |
1031 } | |
1032 | |
6197 | 1033 dirp->path = (char *)malloc(strlen(dirname) + 5, mtInternal); |
0 | 1034 if (dirp->path == 0) { |
6197 | 1035 free(dirp, mtInternal); |
0 | 1036 errno = ENOMEM; |
1037 return 0; | |
1038 } | |
1039 strcpy(dirp->path, dirname); | |
1040 | |
1041 fattr = GetFileAttributes(dirp->path); | |
1042 if (fattr == 0xffffffff) { | |
6197 | 1043 free(dirp->path, mtInternal); |
1044 free(dirp, mtInternal); | |
0 | 1045 errno = ENOENT; |
1046 return 0; | |
1047 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
6197 | 1048 free(dirp->path, mtInternal); |
1049 free(dirp, mtInternal); | |
0 | 1050 errno = ENOTDIR; |
1051 return 0; | |
1052 } | |
1053 | |
1054 /* Append "*.*", or possibly "\\*.*", to path */ | |
1055 if (dirp->path[1] == ':' | |
1056 && (dirp->path[2] == '\0' | |
1057 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
1058 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
1059 strcat(dirp->path, "*.*"); | |
1060 } else { | |
1061 strcat(dirp->path, "\\*.*"); | |
1062 } | |
1063 | |
1064 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
1065 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
1066 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
6197 | 1067 free(dirp->path, mtInternal); |
1068 free(dirp, mtInternal); | |
0 | 1069 errno = EACCES; |
1070 return 0; | |
1071 } | |
1072 } | |
1073 return dirp; | |
1074 } | |
1075 | |
1076 /* parameter dbuf unused on Windows */ | |
1077 | |
1078 struct dirent * | |
1079 os::readdir(DIR *dirp, dirent *dbuf) | |
1080 { | |
1081 assert(dirp != NULL, "just checking"); // hotspot change | |
1082 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
1083 return 0; | |
1084 } | |
1085 | |
1086 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
1087 | |
1088 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
1089 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
1090 errno = EBADF; | |
1091 return 0; | |
1092 } | |
1093 FindClose(dirp->handle); | |
1094 dirp->handle = INVALID_HANDLE_VALUE; | |
1095 } | |
1096 | |
1097 return &dirp->dirent; | |
1098 } | |
1099 | |
1100 int | |
1101 os::closedir(DIR *dirp) | |
1102 { | |
1103 assert(dirp != NULL, "just checking"); // hotspot change | |
1104 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
1105 if (!FindClose(dirp->handle)) { | |
1106 errno = EBADF; | |
1107 return -1; | |
1108 } | |
1109 dirp->handle = INVALID_HANDLE_VALUE; | |
1110 } | |
6197 | 1111 free(dirp->path, mtInternal); |
1112 free(dirp, mtInternal); | |
0 | 1113 return 0; |
1114 } | |
1115 | |
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1116 // This must be hard coded because it's the system's temporary |
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1117 // directory not the java application's temp directory, ala java.io.tmpdir. |
1353
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1118 const char* os::get_temp_directory() { |
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1119 static char path_buf[MAX_PATH]; |
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1120 if (GetTempPath(MAX_PATH, path_buf)>0) |
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1121 return path_buf; |
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1122 else{ |
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1123 path_buf[0]='\0'; |
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1124 return path_buf; |
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1125 } |
0 | 1126 } |
1127 | |
691 | 1128 static bool file_exists(const char* filename) { |
1129 if (filename == NULL || strlen(filename) == 0) { | |
1130 return false; | |
1131 } | |
1132 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
1133 } | |
1134 | |
1135 void os::dll_build_name(char *buffer, size_t buflen, | |
1136 const char* pname, const char* fname) { | |
1137 const size_t pnamelen = pname ? strlen(pname) : 0; | |
1138 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
1139 | |
1140 // Quietly truncates on buffer overflow. Should be an error. | |
1141 if (pnamelen + strlen(fname) + 10 > buflen) { | |
1142 *buffer = '\0'; | |
1143 return; | |
1144 } | |
1145 | |
1146 if (pnamelen == 0) { | |
1147 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
1148 } else if (c == ':' || c == '\\') { | |
1149 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
1150 } else if (strchr(pname, *os::path_separator()) != NULL) { | |
1151 int n; | |
1152 char** pelements = split_path(pname, &n); | |
1153 for (int i = 0 ; i < n ; i++) { | |
1154 char* path = pelements[i]; | |
1155 // Really shouldn't be NULL, but check can't hurt | |
1156 size_t plen = (path == NULL) ? 0 : strlen(path); | |
1157 if (plen == 0) { | |
1158 continue; // skip the empty path values | |
1159 } | |
1160 const char lastchar = path[plen - 1]; | |
1161 if (lastchar == ':' || lastchar == '\\') { | |
1162 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
1163 } else { | |
1164 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
1165 } | |
1166 if (file_exists(buffer)) { | |
1167 break; | |
1168 } | |
242 | 1169 } |
691 | 1170 // release the storage |
1171 for (int i = 0 ; i < n ; i++) { | |
1172 if (pelements[i] != NULL) { | |
6197 | 1173 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
691 | 1174 } |
242 | 1175 } |
691 | 1176 if (pelements != NULL) { |
6197 | 1177 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
691 | 1178 } |
1179 } else { | |
1180 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
1181 } | |
242 | 1182 } |
1183 | |
0 | 1184 // Needs to be in os specific directory because windows requires another |
1185 // header file <direct.h> | |
1186 const char* os::get_current_directory(char *buf, int buflen) { | |
1187 return _getcwd(buf, buflen); | |
1188 } | |
1189 | |
1190 //----------------------------------------------------------- | |
1191 // Helper functions for fatal error handler | |
1192 #ifdef _WIN64 | |
1193 // Helper routine which returns true if address in | |
1194 // within the NTDLL address space. | |
1195 // | |
1196 static bool _addr_in_ntdll( address addr ) | |
1197 { | |
1198 HMODULE hmod; | |
1199 MODULEINFO minfo; | |
1200 | |
1201 hmod = GetModuleHandle("NTDLL.DLL"); | |
1202 if ( hmod == NULL ) return false; | |
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1203 if ( !os::PSApiDll::GetModuleInformation( GetCurrentProcess(), hmod, |
0 | 1204 &minfo, sizeof(MODULEINFO)) ) |
1205 return false; | |
1206 | |
1207 if ( (addr >= minfo.lpBaseOfDll) && | |
1208 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
1209 return true; | |
1210 else | |
1211 return false; | |
1212 } | |
1213 #endif | |
1214 | |
1215 | |
1216 // Enumerate all modules for a given process ID | |
1217 // | |
1218 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
1219 // different API for doing this. We use PSAPI.DLL on NT based | |
1220 // Windows and ToolHelp on 95/98/Me. | |
1221 | |
1222 // Callback function that is called by enumerate_modules() on | |
1223 // every DLL module. | |
1224 // Input parameters: | |
1225 // int pid, | |
1226 // char* module_file_name, | |
1227 // address module_base_addr, | |
1228 // unsigned module_size, | |
1229 // void* param | |
1230 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
1231 | |
1232 // enumerate_modules for Windows NT, using PSAPI | |
1233 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
1234 { | |
1235 HANDLE hProcess ; | |
1236 | |
1237 # define MAX_NUM_MODULES 128 | |
1238 HMODULE modules[MAX_NUM_MODULES]; | |
1239 static char filename[ MAX_PATH ]; | |
1240 int result = 0; | |
1241 | |
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1242 if (!os::PSApiDll::PSApiAvailable()) { |
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1243 return 0; |
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1244 } |
0 | 1245 |
1246 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
1247 FALSE, pid ) ; | |
1248 if (hProcess == NULL) return 0; | |
1249 | |
1250 DWORD size_needed; | |
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1251 if (!os::PSApiDll::EnumProcessModules(hProcess, modules, |
0 | 1252 sizeof(modules), &size_needed)) { |
1253 CloseHandle( hProcess ); | |
1254 return 0; | |
1255 } | |
1256 | |
1257 // number of modules that are currently loaded | |
1258 int num_modules = size_needed / sizeof(HMODULE); | |
1259 | |
1260 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
1261 // Get Full pathname: | |
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1262 if(!os::PSApiDll::GetModuleFileNameEx(hProcess, modules[i], |
0 | 1263 filename, sizeof(filename))) { |
1264 filename[0] = '\0'; | |
1265 } | |
1266 | |
1267 MODULEINFO modinfo; | |
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1268 if (!os::PSApiDll::GetModuleInformation(hProcess, modules[i], |
0 | 1269 &modinfo, sizeof(modinfo))) { |
1270 modinfo.lpBaseOfDll = NULL; | |
1271 modinfo.SizeOfImage = 0; | |
1272 } | |
1273 | |
1274 // Invoke callback function | |
1275 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
1276 modinfo.SizeOfImage, param); | |
1277 if (result) break; | |
1278 } | |
1279 | |
1280 CloseHandle( hProcess ) ; | |
1281 return result; | |
1282 } | |
1283 | |
1284 | |
1285 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
1286 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
1287 { | |
1288 HANDLE hSnapShot ; | |
1289 static MODULEENTRY32 modentry ; | |
1290 int result = 0; | |
1291 | |
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1292 if (!os::Kernel32Dll::HelpToolsAvailable()) { |
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1293 return 0; |
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1294 } |
0 | 1295 |
1296 // Get a handle to a Toolhelp snapshot of the system | |
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1297 hSnapShot = os::Kernel32Dll::CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; |
0 | 1298 if( hSnapShot == INVALID_HANDLE_VALUE ) { |
1299 return FALSE ; | |
1300 } | |
1301 | |
1302 // iterate through all modules | |
1303 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1304 bool not_done = os::Kernel32Dll::Module32First( hSnapShot, &modentry ) != 0; |
0 | 1305 |
1306 while( not_done ) { | |
1307 // invoke the callback | |
1308 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
1309 modentry.modBaseSize, param); | |
1310 if (result) break; | |
1311 | |
1312 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1313 not_done = os::Kernel32Dll::Module32Next( hSnapShot, &modentry ) != 0; |
0 | 1314 } |
1315 | |
1316 CloseHandle(hSnapShot); | |
1317 return result; | |
1318 } | |
1319 | |
1320 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
1321 { | |
1322 // Get current process ID if caller doesn't provide it. | |
1323 if (!pid) pid = os::current_process_id(); | |
1324 | |
1325 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
1326 else return _enumerate_modules_windows(pid, func, param); | |
1327 } | |
1328 | |
1329 struct _modinfo { | |
1330 address addr; | |
1331 char* full_path; // point to a char buffer | |
1332 int buflen; // size of the buffer | |
1333 address base_addr; | |
1334 }; | |
1335 | |
1336 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
1337 unsigned size, void * param) { | |
1338 struct _modinfo *pmod = (struct _modinfo *)param; | |
1339 if (!pmod) return -1; | |
1340 | |
1341 if (base_addr <= pmod->addr && | |
1342 base_addr+size > pmod->addr) { | |
1343 // if a buffer is provided, copy path name to the buffer | |
1344 if (pmod->full_path) { | |
1345 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
1346 } | |
1347 pmod->base_addr = base_addr; | |
1348 return 1; | |
1349 } | |
1350 return 0; | |
1351 } | |
1352 | |
1353 bool os::dll_address_to_library_name(address addr, char* buf, | |
1354 int buflen, int* offset) { | |
1355 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always | |
1356 // return the full path to the DLL file, sometimes it returns path | |
1357 // to the corresponding PDB file (debug info); sometimes it only | |
1358 // returns partial path, which makes life painful. | |
1359 | |
1360 struct _modinfo mi; | |
1361 mi.addr = addr; | |
1362 mi.full_path = buf; | |
1363 mi.buflen = buflen; | |
1364 int pid = os::current_process_id(); | |
1365 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { | |
1366 // buf already contains path name | |
1367 if (offset) *offset = addr - mi.base_addr; | |
1368 return true; | |
1369 } else { | |
1370 if (buf) buf[0] = '\0'; | |
1371 if (offset) *offset = -1; | |
1372 return false; | |
1373 } | |
1374 } | |
1375 | |
1376 bool os::dll_address_to_function_name(address addr, char *buf, | |
1377 int buflen, int *offset) { | |
4803 | 1378 if (Decoder::decode(addr, buf, buflen, offset)) { |
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1379 return true; |
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1380 } |
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1381 if (offset != NULL) *offset = -1; |
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1382 if (buf != NULL) buf[0] = '\0'; |
0 | 1383 return false; |
1384 } | |
1385 | |
1386 // save the start and end address of jvm.dll into param[0] and param[1] | |
1387 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
1388 unsigned size, void * param) { | |
1389 if (!param) return -1; | |
1390 | |
1391 if (base_addr <= (address)_locate_jvm_dll && | |
1392 base_addr+size > (address)_locate_jvm_dll) { | |
1393 ((address*)param)[0] = base_addr; | |
1394 ((address*)param)[1] = base_addr + size; | |
1395 return 1; | |
1396 } | |
1397 return 0; | |
1398 } | |
1399 | |
1400 address vm_lib_location[2]; // start and end address of jvm.dll | |
1401 | |
1402 // check if addr is inside jvm.dll | |
1403 bool os::address_is_in_vm(address addr) { | |
1404 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
1405 int pid = os::current_process_id(); | |
1406 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
1407 assert(false, "Can't find jvm module."); | |
1408 return false; | |
1409 } | |
1410 } | |
1411 | |
1412 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
1413 } | |
1414 | |
1415 // print module info; param is outputStream* | |
1416 static int _print_module(int pid, char* fname, address base, | |
1417 unsigned size, void* param) { | |
1418 if (!param) return -1; | |
1419 | |
1420 outputStream* st = (outputStream*)param; | |
1421 | |
1422 address end_addr = base + size; | |
1423 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
1424 return 0; | |
1425 } | |
1426 | |
1427 // Loads .dll/.so and | |
1428 // in case of error it checks if .dll/.so was built for the | |
1429 // same architecture as Hotspot is running on | |
1430 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
1431 { | |
1432 void * result = LoadLibrary(name); | |
1433 if (result != NULL) | |
1434 { | |
1435 return result; | |
1436 } | |
1437 | |
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1438 DWORD errcode = GetLastError(); |
0 | 1439 if (errcode == ERROR_MOD_NOT_FOUND) { |
1440 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
1441 ebuf[ebuflen-1]='\0'; | |
1442 return NULL; | |
1443 } | |
1444 | |
1445 // Parsing dll below | |
1446 // If we can read dll-info and find that dll was built | |
1447 // for an architecture other than Hotspot is running in | |
1448 // - then print to buffer "DLL was built for a different architecture" | |
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1449 // else call os::lasterror to obtain system error message |
0 | 1450 |
1451 // Read system error message into ebuf | |
1452 // It may or may not be overwritten below (in the for loop and just above) | |
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1453 lasterror(ebuf, (size_t) ebuflen); |
0 | 1454 ebuf[ebuflen-1]='\0'; |
1455 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
1456 if (file_descriptor<0) | |
1457 { | |
1458 return NULL; | |
1459 } | |
1460 | |
1461 uint32_t signature_offset; | |
1462 uint16_t lib_arch=0; | |
1463 bool failed_to_get_lib_arch= | |
1464 ( | |
1465 //Go to position 3c in the dll | |
1466 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
1467 || | |
1468 // Read loacation of signature | |
1469 (sizeof(signature_offset)!= | |
1470 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
1471 || | |
1472 //Go to COFF File Header in dll | |
1473 //that is located after"signature" (4 bytes long) | |
1474 (os::seek_to_file_offset(file_descriptor, | |
1475 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
1476 || | |
1477 //Read field that contains code of architecture | |
1478 // that dll was build for | |
1479 (sizeof(lib_arch)!= | |
1480 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
1481 ); | |
1482 | |
1483 ::close(file_descriptor); | |
1484 if (failed_to_get_lib_arch) | |
1485 { | |
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1486 // file i/o error - report os::lasterror(...) msg |
0 | 1487 return NULL; |
1488 } | |
1489 | |
1490 typedef struct | |
1491 { | |
1492 uint16_t arch_code; | |
1493 char* arch_name; | |
1494 } arch_t; | |
1495 | |
1496 static const arch_t arch_array[]={ | |
1497 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
1498 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
1499 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
1500 }; | |
1501 #if (defined _M_IA64) | |
1502 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
1503 #elif (defined _M_AMD64) | |
1504 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
1505 #elif (defined _M_IX86) | |
1506 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
1507 #else | |
1508 #error Method os::dll_load requires that one of following \ | |
1509 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
1510 #endif | |
1511 | |
1512 | |
1513 // Obtain a string for printf operation | |
1514 // lib_arch_str shall contain string what platform this .dll was built for | |
1515 // running_arch_str shall string contain what platform Hotspot was built for | |
1516 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
1517 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
1518 { | |
1519 if (lib_arch==arch_array[i].arch_code) | |
1520 lib_arch_str=arch_array[i].arch_name; | |
1521 if (running_arch==arch_array[i].arch_code) | |
1522 running_arch_str=arch_array[i].arch_name; | |
1523 } | |
1524 | |
1525 assert(running_arch_str, | |
1526 "Didn't find runing architecture code in arch_array"); | |
1527 | |
1528 // If the architure is right | |
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1529 // but some other error took place - report os::lasterror(...) msg |
0 | 1530 if (lib_arch == running_arch) |
1531 { | |
1532 return NULL; | |
1533 } | |
1534 | |
1535 if (lib_arch_str!=NULL) | |
1536 { | |
1537 ::_snprintf(ebuf, ebuflen-1, | |
1538 "Can't load %s-bit .dll on a %s-bit platform", | |
1539 lib_arch_str,running_arch_str); | |
1540 } | |
1541 else | |
1542 { | |
1543 // don't know what architecture this dll was build for | |
1544 ::_snprintf(ebuf, ebuflen-1, | |
1545 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
1546 lib_arch,running_arch_str); | |
1547 } | |
1548 | |
1549 return NULL; | |
1550 } | |
1551 | |
1552 | |
1553 void os::print_dll_info(outputStream *st) { | |
1554 int pid = os::current_process_id(); | |
1555 st->print_cr("Dynamic libraries:"); | |
1556 enumerate_modules(pid, _print_module, (void *)st); | |
1557 } | |
1558 | |
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1559 void os::print_os_info_brief(outputStream* st) { |
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1560 os::print_os_info(st); |
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1561 } |
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1562 |
0 | 1563 void os::print_os_info(outputStream* st) { |
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1564 st->print("OS:"); |
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1565 |
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1566 os::win32::print_windows_version(st); |
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1567 } |
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1568 |
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1569 void os::win32::print_windows_version(outputStream* st) { |
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1570 OSVERSIONINFOEX osvi; |
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1571 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
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1572 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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1573 |
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1574 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
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1575 st->print_cr("N/A"); |
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1576 return; |
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1577 } |
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1578 |
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1579 int os_vers = osvi.dwMajorVersion * 1000 + osvi.dwMinorVersion; |
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1580 if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) { |
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1581 switch (os_vers) { |
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1582 case 3051: st->print(" Windows NT 3.51"); break; |
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1583 case 4000: st->print(" Windows NT 4.0"); break; |
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1584 case 5000: st->print(" Windows 2000"); break; |
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1585 case 5001: st->print(" Windows XP"); break; |
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1586 case 5002: |
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1587 case 6000: |
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1588 case 6001: |
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1589 case 6002: { |
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1590 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
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1591 // find out whether we are running on 64 bit processor or not. |
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1592 SYSTEM_INFO si; |
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1593 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
3833
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|
1594 if (!os::Kernel32Dll::GetNativeSystemInfoAvailable()){ |
273
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1595 GetSystemInfo(&si); |
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1596 } else { |
3833
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|
1597 os::Kernel32Dll::GetNativeSystemInfo(&si); |
273
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1598 } |
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1599 if (os_vers == 5002) { |
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1600 if (osvi.wProductType == VER_NT_WORKSTATION && |
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1601 si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
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1602 st->print(" Windows XP x64 Edition"); |
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|
1603 else |
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|
1604 st->print(" Windows Server 2003 family"); |
962
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|
1605 } else if (os_vers == 6000) { |
273
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1606 if (osvi.wProductType == VER_NT_WORKSTATION) |
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1607 st->print(" Windows Vista"); |
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|
1608 else |
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|
1609 st->print(" Windows Server 2008"); |
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1610 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
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|
1611 st->print(" , 64 bit"); |
962
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|
1612 } else if (os_vers == 6001) { |
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|
1613 if (osvi.wProductType == VER_NT_WORKSTATION) { |
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6821003: Update hotspot windows os_win32 for windows 7
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|
1614 st->print(" Windows 7"); |
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diff
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|
1615 } else { |
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|
1616 // Unrecognized windows, print out its major and minor versions |
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diff
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|
1617 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
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|
1618 } |
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|
1619 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
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|
1620 st->print(" , 64 bit"); |
6126
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7170275: os::print_os_info needs to know about Windows 8
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|
1621 } else if (os_vers == 6002) { |
de909f001528
7170275: os::print_os_info needs to know about Windows 8
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|
1622 if (osvi.wProductType == VER_NT_WORKSTATION) { |
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|
1623 st->print(" Windows 8"); |
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|
1624 } else { |
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|
1625 st->print(" Windows Server 2012"); |
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|
1626 } |
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diff
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|
1627 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
de909f001528
7170275: os::print_os_info needs to know about Windows 8
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diff
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|
1628 st->print(" , 64 bit"); |
962
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6821003: Update hotspot windows os_win32 for windows 7
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diff
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|
1629 } else { // future os |
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diff
changeset
|
1630 // Unrecognized windows, print out its major and minor versions |
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6821003: Update hotspot windows os_win32 for windows 7
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877
diff
changeset
|
1631 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
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diff
changeset
|
1632 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
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6821003: Update hotspot windows os_win32 for windows 7
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diff
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|
1633 st->print(" , 64 bit"); |
273
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|
1634 } |
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|
1635 break; |
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diff
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|
1636 } |
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|
1637 default: // future windows, print out its major and minor versions |
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1638 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
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|
1639 } |
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|
1640 } else { |
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|
1641 switch (os_vers) { |
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|
1642 case 4000: st->print(" Windows 95"); break; |
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|
1643 case 4010: st->print(" Windows 98"); break; |
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1644 case 4090: st->print(" Windows Me"); break; |
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|
1645 default: // future windows, print out its major and minor versions |
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|
1646 st->print(" Windows %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
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|
1647 } |
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|
1648 } |
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|
1649 st->print(" Build %d", osvi.dwBuildNumber); |
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|
1650 st->print(" %s", osvi.szCSDVersion); // service pack |
6f17a7c9f8b4
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|
1651 st->cr(); |
0 | 1652 } |
1653 | |
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1654 void os::pd_print_cpu_info(outputStream* st) { |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1655 // Nothing to do for now. |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
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|
1656 } |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
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3318
diff
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|
1657 |
0 | 1658 void os::print_memory_info(outputStream* st) { |
1659 st->print("Memory:"); | |
1660 st->print(" %dk page", os::vm_page_size()>>10); | |
1661 | |
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1662 // 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
|
1663 // 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
|
1664 MEMORYSTATUSEX ms; |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
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parents:
717
diff
changeset
|
1665 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
|
1666 GlobalMemoryStatusEx(&ms); |
0 | 1667 |
1668 st->print(", physical %uk", os::physical_memory() >> 10); | |
1669 st->print("(%uk free)", os::available_memory() >> 10); | |
1670 | |
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
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parents:
717
diff
changeset
|
1671 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
|
1672 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
0 | 1673 st->cr(); |
1674 } | |
1675 | |
1676 void os::print_siginfo(outputStream *st, void *siginfo) { | |
1677 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
1678 st->print("siginfo:"); | |
1679 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
1680 | |
1681 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
1682 er->NumberParameters >= 2) { | |
1683 switch (er->ExceptionInformation[0]) { | |
1684 case 0: st->print(", reading address"); break; | |
1685 case 1: st->print(", writing address"); break; | |
1686 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
1687 er->ExceptionInformation[0]); | |
1688 } | |
1689 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
1690 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
1691 er->NumberParameters >= 2 && UseSharedSpaces) { | |
1692 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
1693 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
1694 st->print("\n\nError accessing class data sharing archive." \ | |
1695 " Mapped file inaccessible during execution, " \ | |
1696 " possible disk/network problem."); | |
1697 } | |
1698 } else { | |
1699 int num = er->NumberParameters; | |
1700 if (num > 0) { | |
1701 st->print(", ExceptionInformation="); | |
1702 for (int i = 0; i < num; i++) { | |
1703 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
1704 } | |
1705 } | |
1706 } | |
1707 st->cr(); | |
1708 } | |
1709 | |
1710 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
1711 // do nothing | |
1712 } | |
1713 | |
1714 static char saved_jvm_path[MAX_PATH] = {0}; | |
1715 | |
1716 // Find the full path to the current module, jvm.dll or jvm_g.dll | |
1717 void os::jvm_path(char *buf, jint buflen) { | |
1718 // Error checking. | |
1719 if (buflen < MAX_PATH) { | |
1720 assert(false, "must use a large-enough buffer"); | |
1721 buf[0] = '\0'; | |
1722 return; | |
1723 } | |
1724 // Lazy resolve the path to current module. | |
1725 if (saved_jvm_path[0] != 0) { | |
1726 strcpy(buf, saved_jvm_path); | |
1727 return; | |
1728 } | |
1729 | |
1985 | 1730 buf[0] = '\0'; |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
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2205
diff
changeset
|
1731 if (Arguments::created_by_gamma_launcher()) { |
1985 | 1732 // 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
|
1733 // JAVA_HOME environment variable |
1985 | 1734 // and fix up the path so it looks like |
1735 // libjvm.so is installed there (append a fake suffix | |
1736 // hotspot/libjvm.so). | |
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
2023
diff
changeset
|
1737 char* java_home_var = ::getenv("JAVA_HOME"); |
1985 | 1738 if (java_home_var != NULL && java_home_var[0] != 0) { |
1739 | |
1740 strncpy(buf, java_home_var, buflen); | |
1741 | |
1742 // determine if this is a legacy image or modules image | |
1743 // modules image doesn't have "jre" subdirectory | |
1744 size_t len = strlen(buf); | |
1745 char* jrebin_p = buf + len; | |
1746 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
1747 if (0 != _access(buf, 0)) { | |
1748 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
1749 } | |
1750 len = strlen(buf); | |
1751 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
1752 } | |
1753 } | |
1754 | |
1755 if(buf[0] == '\0') { | |
0 | 1756 GetModuleFileName(vm_lib_handle, buf, buflen); |
1985 | 1757 } |
0 | 1758 strcpy(saved_jvm_path, buf); |
1759 } | |
1760 | |
1761 | |
1762 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
1763 #ifndef _WIN64 | |
1764 st->print("_"); | |
1765 #endif | |
1766 } | |
1767 | |
1768 | |
1769 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
1770 #ifndef _WIN64 | |
1771 st->print("@%d", args_size * sizeof(int)); | |
1772 #endif | |
1773 } | |
1774 | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
changeset
|
1775 // This method is a copy of JDK's sysGetLastErrorString |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
1776 // from src/windows/hpi/src/system_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
1777 |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1778 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
|
1779 DWORD errval; |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1780 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
1781 if ((errval = GetLastError()) != 0) { |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1782 // DOS error |
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1783 size_t n = (size_t)FormatMessage( |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1784 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
1785 NULL, |
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6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
1786 errval, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
1787 0, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
1788 buf, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1789 (DWORD)len, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
1790 NULL); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1791 if (n > 3) { |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1792 // Drop final '.', CR, LF |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1793 if (buf[n - 1] == '\n') n--; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1794 if (buf[n - 1] == '\r') n--; |
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1795 if (buf[n - 1] == '.') n--; |
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1796 buf[n] = '\0'; |
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1797 } |
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1798 return n; |
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1799 } |
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1800 |
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1801 if (errno != 0) { |
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1802 // C runtime error that has no corresponding DOS error code |
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1803 const char* s = strerror(errno); |
1980
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1804 size_t n = strlen(s); |
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1805 if (n >= len) n = len - 1; |
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1806 strncpy(buf, s, n); |
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1807 buf[n] = '\0'; |
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1808 return n; |
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1809 } |
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1810 |
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1811 return 0; |
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1812 } |
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1813 |
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1814 int os::get_last_error() { |
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1815 DWORD error = GetLastError(); |
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1816 if (error == 0) |
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1817 error = errno; |
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1818 return (int)error; |
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1819 } |
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1820 |
0 | 1821 // sun.misc.Signal |
1822 // NOTE that this is a workaround for an apparent kernel bug where if | |
1823 // a signal handler for SIGBREAK is installed then that signal handler | |
1824 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
1825 // See bug 4416763. | |
1826 static void (*sigbreakHandler)(int) = NULL; | |
1827 | |
1828 static void UserHandler(int sig, void *siginfo, void *context) { | |
1829 os::signal_notify(sig); | |
1830 // We need to reinstate the signal handler each time... | |
1831 os::signal(sig, (void*)UserHandler); | |
1832 } | |
1833 | |
1834 void* os::user_handler() { | |
1835 return (void*) UserHandler; | |
1836 } | |
1837 | |
1838 void* os::signal(int signal_number, void* handler) { | |
1839 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
1840 void (*oldHandler)(int) = sigbreakHandler; | |
1841 sigbreakHandler = (void (*)(int)) handler; | |
1842 return (void*) oldHandler; | |
1843 } else { | |
1844 return (void*)::signal(signal_number, (void (*)(int))handler); | |
1845 } | |
1846 } | |
1847 | |
1848 void os::signal_raise(int signal_number) { | |
1849 raise(signal_number); | |
1850 } | |
1851 | |
1852 // The Win32 C runtime library maps all console control events other than ^C | |
1853 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
1854 // logoff, and shutdown events. We therefore install our own console handler | |
1855 // that raises SIGTERM for the latter cases. | |
1856 // | |
1857 static BOOL WINAPI consoleHandler(DWORD event) { | |
1858 switch(event) { | |
1859 case CTRL_C_EVENT: | |
1860 if (is_error_reported()) { | |
1861 // Ctrl-C is pressed during error reporting, likely because the error | |
1862 // handler fails to abort. Let VM die immediately. | |
1863 os::die(); | |
1864 } | |
1865 | |
1866 os::signal_raise(SIGINT); | |
1867 return TRUE; | |
1868 break; | |
1869 case CTRL_BREAK_EVENT: | |
1870 if (sigbreakHandler != NULL) { | |
1871 (*sigbreakHandler)(SIGBREAK); | |
1872 } | |
1873 return TRUE; | |
1874 break; | |
1875 case CTRL_CLOSE_EVENT: | |
1876 case CTRL_LOGOFF_EVENT: | |
1877 case CTRL_SHUTDOWN_EVENT: | |
1878 os::signal_raise(SIGTERM); | |
1879 return TRUE; | |
1880 break; | |
1881 default: | |
1882 break; | |
1883 } | |
1884 return FALSE; | |
1885 } | |
1886 | |
1887 /* | |
1888 * The following code is moved from os.cpp for making this | |
1889 * code platform specific, which it is by its very nature. | |
1890 */ | |
1891 | |
1892 // Return maximum OS signal used + 1 for internal use only | |
1893 // Used as exit signal for signal_thread | |
1894 int os::sigexitnum_pd(){ | |
1895 return NSIG; | |
1896 } | |
1897 | |
1898 // a counter for each possible signal value, including signal_thread exit signal | |
1899 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
1900 static HANDLE sig_sem; | |
1901 | |
1902 void os::signal_init_pd() { | |
1903 // Initialize signal structures | |
1904 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
1905 | |
1906 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
1907 | |
1908 // Programs embedding the VM do not want it to attempt to receive | |
1909 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
1910 // shutdown hooks mechanism introduced in 1.3. For example, when | |
1911 // the VM is run as part of a Windows NT service (i.e., a servlet | |
1912 // engine in a web server), the correct behavior is for any console | |
1913 // control handler to return FALSE, not TRUE, because the OS's | |
1914 // "final" handler for such events allows the process to continue if | |
1915 // it is a service (while terminating it if it is not a service). | |
1916 // To make this behavior uniform and the mechanism simpler, we | |
1917 // completely disable the VM's usage of these console events if -Xrs | |
1918 // (=ReduceSignalUsage) is specified. This means, for example, that | |
1919 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
1920 // case. See bugs 4323062, 4345157, and related bugs. | |
1921 | |
1922 if (!ReduceSignalUsage) { | |
1923 // Add a CTRL-C handler | |
1924 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
1925 } | |
1926 } | |
1927 | |
1928 void os::signal_notify(int signal_number) { | |
1929 BOOL ret; | |
1930 | |
1931 Atomic::inc(&pending_signals[signal_number]); | |
1932 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
1933 assert(ret != 0, "ReleaseSemaphore() failed"); | |
1934 } | |
1935 | |
1936 static int check_pending_signals(bool wait_for_signal) { | |
1937 DWORD ret; | |
1938 while (true) { | |
1939 for (int i = 0; i < NSIG + 1; i++) { | |
1940 jint n = pending_signals[i]; | |
1941 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
1942 return i; | |
1943 } | |
1944 } | |
1945 if (!wait_for_signal) { | |
1946 return -1; | |
1947 } | |
1948 | |
1949 JavaThread *thread = JavaThread::current(); | |
1950 | |
1951 ThreadBlockInVM tbivm(thread); | |
1952 | |
1953 bool threadIsSuspended; | |
1954 do { | |
1955 thread->set_suspend_equivalent(); | |
1956 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
1957 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
1958 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
1959 | |
1960 // were we externally suspended while we were waiting? | |
1961 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
1962 if (threadIsSuspended) { | |
1963 // | |
1964 // The semaphore has been incremented, but while we were waiting | |
1965 // another thread suspended us. We don't want to continue running | |
1966 // while suspended because that would surprise the thread that | |
1967 // suspended us. | |
1968 // | |
1969 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
1970 assert(ret != 0, "ReleaseSemaphore() failed"); | |
1971 | |
1972 thread->java_suspend_self(); | |
1973 } | |
1974 } while (threadIsSuspended); | |
1975 } | |
1976 } | |
1977 | |
1978 int os::signal_lookup() { | |
1979 return check_pending_signals(false); | |
1980 } | |
1981 | |
1982 int os::signal_wait() { | |
1983 return check_pending_signals(true); | |
1984 } | |
1985 | |
1986 // Implicit OS exception handling | |
1987 | |
1988 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
1989 JavaThread* thread = JavaThread::current(); | |
1990 // Save pc in thread | |
1991 #ifdef _M_IA64 | |
1992 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->StIIP); | |
1993 // Set pc to handler | |
1994 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
1995 #elif _M_AMD64 | |
1996 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Rip); | |
1997 // Set pc to handler | |
1998 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
1999 #else | |
2000 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Eip); | |
2001 // Set pc to handler | |
2002 exceptionInfo->ContextRecord->Eip = (LONG)handler; | |
2003 #endif | |
2004 | |
2005 // Continue the execution | |
2006 return EXCEPTION_CONTINUE_EXECUTION; | |
2007 } | |
2008 | |
2009 | |
2010 // Used for PostMortemDump | |
2011 extern "C" void safepoints(); | |
2012 extern "C" void find(int x); | |
2013 extern "C" void events(); | |
2014 | |
2015 // According to Windows API documentation, an illegal instruction sequence should generate | |
2016 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
2017 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
2018 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
2019 | |
2020 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
2021 | |
2022 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
2023 // Once a system header becomes available, the "real" define should be | |
2024 // included or copied here. | |
2025 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
2026 | |
2027 #define def_excpt(val) #val, val | |
2028 | |
2029 struct siglabel { | |
2030 char *name; | |
2031 int number; | |
2032 }; | |
2033 | |
2068
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2034 // All Visual C++ exceptions thrown from code generated by the Microsoft Visual |
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2035 // C++ compiler contain this error code. Because this is a compiler-generated |
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2036 // error, the code is not listed in the Win32 API header files. |
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2037 // The code is actually a cryptic mnemonic device, with the initial "E" |
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2038 // standing for "exception" and the final 3 bytes (0x6D7363) representing the |
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2039 // ASCII values of "msc". |
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2040 |
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2041 #define EXCEPTION_UNCAUGHT_CXX_EXCEPTION 0xE06D7363 |
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2042 |
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2043 |
0 | 2044 struct siglabel exceptlabels[] = { |
2045 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
2046 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
2047 def_excpt(EXCEPTION_BREAKPOINT), | |
2048 def_excpt(EXCEPTION_SINGLE_STEP), | |
2049 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
2050 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
2051 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
2052 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
2053 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
2054 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
2055 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
2056 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
2057 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
2058 def_excpt(EXCEPTION_INT_OVERFLOW), | |
2059 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
2060 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
2061 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
2062 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
2063 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
2064 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
2065 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
2066 def_excpt(EXCEPTION_GUARD_PAGE), | |
2067 def_excpt(EXCEPTION_INVALID_HANDLE), | |
2068
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2068 def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION), |
0 | 2069 NULL, 0 |
2070 }; | |
2071 | |
2072 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
2073 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
2074 if (exceptlabels[i].number == exception_code) { | |
2075 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
2076 return buf; | |
2077 } | |
2078 } | |
2079 | |
2080 return NULL; | |
2081 } | |
2082 | |
2083 //----------------------------------------------------------------------------- | |
2084 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2085 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
2086 // (division by zero is handled explicitly) | |
2087 #ifdef _M_IA64 | |
2088 assert(0, "Fix Handle_IDiv_Exception"); | |
2089 #elif _M_AMD64 | |
2090 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
2091 address pc = (address)ctx->Rip; | |
2092 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
2093 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
2094 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
2095 // set correct result values and continue after idiv instruction | |
2096 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
2097 ctx->Rax = (DWORD)min_jint; // result | |
2098 ctx->Rdx = (DWORD)0; // remainder | |
2099 // Continue the execution | |
2100 #else | |
2101 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
2102 address pc = (address)ctx->Eip; | |
2103 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
2104 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
2105 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
2106 // set correct result values and continue after idiv instruction | |
2107 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
2108 ctx->Eax = (DWORD)min_jint; // result | |
2109 ctx->Edx = (DWORD)0; // remainder | |
2110 // Continue the execution | |
2111 #endif | |
2112 return EXCEPTION_CONTINUE_EXECUTION; | |
2113 } | |
2114 | |
2115 #ifndef _WIN64 | |
2116 //----------------------------------------------------------------------------- | |
2117 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
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2118 // handle exception caused by native method modifying control word |
0 | 2119 PCONTEXT ctx = exceptionInfo->ContextRecord; |
2120 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2121 | |
2122 switch (exception_code) { | |
2123 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
2124 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
2125 case EXCEPTION_FLT_INEXACT_RESULT: | |
2126 case EXCEPTION_FLT_INVALID_OPERATION: | |
2127 case EXCEPTION_FLT_OVERFLOW: | |
2128 case EXCEPTION_FLT_STACK_CHECK: | |
2129 case EXCEPTION_FLT_UNDERFLOW: | |
2130 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
2131 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
2132 // Restore FPCW and mask out FLT exceptions | |
2133 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
2134 // Mask out pending FLT exceptions | |
2135 ctx->FloatSave.StatusWord &= 0xffffff00; | |
2136 return EXCEPTION_CONTINUE_EXECUTION; | |
2137 } | |
2138 } | |
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2139 |
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2140 if (prev_uef_handler != NULL) { |
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2141 // We didn't handle this exception so pass it to the previous |
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2142 // UnhandledExceptionFilter. |
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2143 return (prev_uef_handler)(exceptionInfo); |
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2144 } |
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2145 |
0 | 2146 return EXCEPTION_CONTINUE_SEARCH; |
2147 } | |
2148 #else //_WIN64 | |
2149 /* | |
2150 On Windows, the mxcsr control bits are non-volatile across calls | |
2151 See also CR 6192333 | |
2152 If EXCEPTION_FLT_* happened after some native method modified | |
2153 mxcsr - it is not a jvm fault. | |
2154 However should we decide to restore of mxcsr after a faulty | |
2155 native method we can uncomment following code | |
2156 jint MxCsr = INITIAL_MXCSR; | |
2157 // we can't use StubRoutines::addr_mxcsr_std() | |
2158 // because in Win64 mxcsr is not saved there | |
2159 if (MxCsr != ctx->MxCsr) { | |
2160 ctx->MxCsr = MxCsr; | |
2161 return EXCEPTION_CONTINUE_EXECUTION; | |
2162 } | |
2163 | |
2164 */ | |
2165 #endif //_WIN64 | |
2166 | |
2167 | |
2168 // Fatal error reporting is single threaded so we can make this a | |
2169 // static and preallocated. If it's more than MAX_PATH silently ignore | |
2170 // it. | |
2171 static char saved_error_file[MAX_PATH] = {0}; | |
2172 | |
2173 void os::set_error_file(const char *logfile) { | |
2174 if (strlen(logfile) <= MAX_PATH) { | |
2175 strncpy(saved_error_file, logfile, MAX_PATH); | |
2176 } | |
2177 } | |
2178 | |
2179 static inline void report_error(Thread* t, DWORD exception_code, | |
2180 address addr, void* siginfo, void* context) { | |
2181 VMError err(t, exception_code, addr, siginfo, context); | |
2182 err.report_and_die(); | |
2183 | |
2184 // If UseOsErrorReporting, this will return here and save the error file | |
2185 // somewhere where we can find it in the minidump. | |
2186 } | |
2187 | |
2188 //----------------------------------------------------------------------------- | |
2189 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2190 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
2191 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2192 #ifdef _M_IA64 | |
2193 address pc = (address) exceptionInfo->ContextRecord->StIIP; | |
2194 #elif _M_AMD64 | |
2195 address pc = (address) exceptionInfo->ContextRecord->Rip; | |
2196 #else | |
2197 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
2198 #endif | |
2199 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
2200 | |
2201 #ifndef _WIN64 | |
2202 // Execution protection violation - win32 running on AMD64 only | |
2203 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
2204 // This is safe to do because we have a new/unique ExceptionInformation | |
2205 // code for this condition. | |
2206 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2207 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2208 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
2209 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2210 | |
2211 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
2212 int page_size = os::vm_page_size(); | |
2213 | |
2214 // Make sure the pc and the faulting address are sane. | |
2215 // | |
2216 // If an instruction spans a page boundary, and the page containing | |
2217 // the beginning of the instruction is executable but the following | |
2218 // page is not, the pc and the faulting address might be slightly | |
2219 // different - we still want to unguard the 2nd page in this case. | |
2220 // | |
2221 // 15 bytes seems to be a (very) safe value for max instruction size. | |
2222 bool pc_is_near_addr = | |
2223 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
2224 bool instr_spans_page_boundary = | |
2225 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
2226 (intptr_t) page_size) > 0); | |
2227 | |
2228 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
2229 static volatile address last_addr = | |
2230 (address) os::non_memory_address_word(); | |
2231 | |
2232 // In conservative mode, don't unguard unless the address is in the VM | |
2233 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
2234 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
2235 | |
477
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2236 // Set memory to RWX and retry |
0 | 2237 address page_start = |
2238 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
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2239 bool res = os::protect_memory((char*) page_start, page_size, |
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2240 os::MEM_PROT_RWX); |
0 | 2241 |
2242 if (PrintMiscellaneous && Verbose) { | |
2243 char buf[256]; | |
2244 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
2245 "at " INTPTR_FORMAT | |
2246 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
2247 page_start, (res ? "success" : strerror(errno))); | |
2248 tty->print_raw_cr(buf); | |
2249 } | |
2250 | |
2251 // Set last_addr so if we fault again at the same address, we don't | |
2252 // end up in an endless loop. | |
2253 // | |
2254 // There are two potential complications here. Two threads trapping | |
2255 // at the same address at the same time could cause one of the | |
2256 // threads to think it already unguarded, and abort the VM. Likely | |
2257 // very rare. | |
2258 // | |
2259 // The other race involves two threads alternately trapping at | |
2260 // different addresses and failing to unguard the page, resulting in | |
2261 // an endless loop. This condition is probably even more unlikely | |
2262 // than the first. | |
2263 // | |
2264 // Although both cases could be avoided by using locks or thread | |
2265 // local last_addr, these solutions are unnecessary complication: | |
2266 // this handler is a best-effort safety net, not a complete solution. | |
2267 // It is disabled by default and should only be used as a workaround | |
2268 // in case we missed any no-execute-unsafe VM code. | |
2269 | |
2270 last_addr = addr; | |
2271 | |
2272 return EXCEPTION_CONTINUE_EXECUTION; | |
2273 } | |
2274 } | |
2275 | |
2276 // Last unguard failed or not unguarding | |
2277 tty->print_raw_cr("Execution protection violation"); | |
2278 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
2279 exceptionInfo->ContextRecord); | |
2280 return EXCEPTION_CONTINUE_SEARCH; | |
2281 } | |
2282 } | |
2283 #endif // _WIN64 | |
2284 | |
2285 // Check to see if we caught the safepoint code in the | |
2286 // process of write protecting the memory serialization page. | |
2287 // It write enables the page immediately after protecting it | |
2288 // so just return. | |
2289 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
2290 JavaThread* thread = (JavaThread*) t; | |
2291 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2292 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2293 if ( os::is_memory_serialize_page(thread, addr) ) { | |
2294 // Block current thread until the memory serialize page permission restored. | |
2295 os::block_on_serialize_page_trap(); | |
2296 return EXCEPTION_CONTINUE_EXECUTION; | |
2297 } | |
2298 } | |
2299 | |
2300 if (t != NULL && t->is_Java_thread()) { | |
2301 JavaThread* thread = (JavaThread*) t; | |
2302 bool in_java = thread->thread_state() == _thread_in_Java; | |
2303 | |
2304 // Handle potential stack overflows up front. | |
2305 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
2306 if (os::uses_stack_guard_pages()) { | |
2307 #ifdef _M_IA64 | |
2308 // | |
2309 // If it's a legal stack address continue, Windows will map it in. | |
2310 // | |
2311 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2312 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2313 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) | |
2314 return EXCEPTION_CONTINUE_EXECUTION; | |
2315 | |
2316 // The register save area is the same size as the memory stack | |
2317 // and starts at the page just above the start of the memory stack. | |
2318 // If we get a fault in this area, we've run out of register | |
2319 // stack. If we are in java, try throwing a stack overflow exception. | |
2320 if (addr > thread->stack_base() && | |
2321 addr <= (thread->stack_base()+thread->stack_size()) ) { | |
2322 char buf[256]; | |
2323 jio_snprintf(buf, sizeof(buf), | |
2324 "Register stack overflow, addr:%p, stack_base:%p\n", | |
2325 addr, thread->stack_base() ); | |
2326 tty->print_raw_cr(buf); | |
2327 // If not in java code, return and hope for the best. | |
2328 return in_java ? Handle_Exception(exceptionInfo, | |
2329 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
2330 : EXCEPTION_CONTINUE_EXECUTION; | |
2331 } | |
2332 #endif | |
2333 if (thread->stack_yellow_zone_enabled()) { | |
2334 // Yellow zone violation. The o/s has unprotected the first yellow | |
2335 // zone page for us. Note: must call disable_stack_yellow_zone to | |
2336 // update the enabled status, even if the zone contains only one page. | |
2337 thread->disable_stack_yellow_zone(); | |
2338 // If not in java code, return and hope for the best. | |
2339 return in_java ? Handle_Exception(exceptionInfo, | |
2340 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
2341 : EXCEPTION_CONTINUE_EXECUTION; | |
2342 } else { | |
2343 // Fatal red zone violation. | |
2344 thread->disable_stack_red_zone(); | |
2345 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
2346 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2347 exceptionInfo->ContextRecord); | |
2348 return EXCEPTION_CONTINUE_SEARCH; | |
2349 } | |
2350 } else if (in_java) { | |
2351 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
2352 // a one-time-only guard page, which it has released to us. The next | |
2353 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
2354 return Handle_Exception(exceptionInfo, | |
2355 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2356 } else { | |
2357 // Can only return and hope for the best. Further stack growth will | |
2358 // result in an ACCESS_VIOLATION. | |
2359 return EXCEPTION_CONTINUE_EXECUTION; | |
2360 } | |
2361 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2362 // Either stack overflow or null pointer exception. | |
2363 if (in_java) { | |
2364 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2365 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2366 address stack_end = thread->stack_base() - thread->stack_size(); | |
2367 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
2368 // Stack overflow. | |
2369 assert(!os::uses_stack_guard_pages(), | |
2370 "should be caught by red zone code above."); | |
2371 return Handle_Exception(exceptionInfo, | |
2372 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2373 } | |
2374 // | |
2375 // Check for safepoint polling and implicit null | |
2376 // We only expect null pointers in the stubs (vtable) | |
2377 // the rest are checked explicitly now. | |
2378 // | |
2379 CodeBlob* cb = CodeCache::find_blob(pc); | |
2380 if (cb != NULL) { | |
2381 if (os::is_poll_address(addr)) { | |
2382 address stub = SharedRuntime::get_poll_stub(pc); | |
2383 return Handle_Exception(exceptionInfo, stub); | |
2384 } | |
2385 } | |
2386 { | |
2387 #ifdef _WIN64 | |
2388 // | |
2389 // If it's a legal stack address map the entire region in | |
2390 // | |
2391 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2392 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2393 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
2394 addr = (address)((uintptr_t)addr & | |
2395 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
656 | 2396 os::commit_memory((char *)addr, thread->stack_base() - addr, |
2397 false ); | |
0 | 2398 return EXCEPTION_CONTINUE_EXECUTION; |
2399 } | |
2400 else | |
2401 #endif | |
2402 { | |
2403 // Null pointer exception. | |
2404 #ifdef _M_IA64 | |
2405 // We catch register stack overflows in compiled code by doing | |
2406 // an explicit compare and executing a st8(G0, G0) if the | |
2407 // BSP enters into our guard area. We test for the overflow | |
2408 // condition and fall into the normal null pointer exception | |
2409 // code if BSP hasn't overflowed. | |
2410 if ( in_java ) { | |
2411 if(thread->register_stack_overflow()) { | |
2412 assert((address)exceptionInfo->ContextRecord->IntS3 == | |
2413 thread->register_stack_limit(), | |
2414 "GR7 doesn't contain register_stack_limit"); | |
2415 // Disable the yellow zone which sets the state that | |
2416 // we've got a stack overflow problem. | |
2417 if (thread->stack_yellow_zone_enabled()) { | |
2418 thread->disable_stack_yellow_zone(); | |
2419 } | |
2420 // Give us some room to process the exception | |
2421 thread->disable_register_stack_guard(); | |
2422 // Update GR7 with the new limit so we can continue running | |
2423 // compiled code. | |
2424 exceptionInfo->ContextRecord->IntS3 = | |
2425 (ULONGLONG)thread->register_stack_limit(); | |
2426 return Handle_Exception(exceptionInfo, | |
2427 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2428 } else { | |
2429 // | |
2430 // Check for implicit null | |
2431 // We only expect null pointers in the stubs (vtable) | |
2432 // the rest are checked explicitly now. | |
2433 // | |
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2434 if (((uintptr_t)addr) < os::vm_page_size() ) { |
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2435 // an access to the first page of VM--assume it is a null pointer |
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2436 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2437 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
0 | 2438 } |
2439 } | |
2440 } // in_java | |
2441 | |
2442 // IA64 doesn't use implicit null checking yet. So we shouldn't | |
2443 // get here. | |
2444 tty->print_raw_cr("Access violation, possible null pointer exception"); | |
2445 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2446 exceptionInfo->ContextRecord); | |
2447 return EXCEPTION_CONTINUE_SEARCH; | |
2448 #else /* !IA64 */ | |
2449 | |
2450 // Windows 98 reports faulting addresses incorrectly | |
2451 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
2452 !os::win32::is_nt()) { | |
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2453 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2454 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
0 | 2455 } |
2456 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2457 exceptionInfo->ContextRecord); | |
2458 return EXCEPTION_CONTINUE_SEARCH; | |
2459 #endif | |
2460 } | |
2461 } | |
2462 } | |
2463 | |
2464 #ifdef _WIN64 | |
2465 // Special care for fast JNI field accessors. | |
2466 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
2467 // in and the heap gets shrunk before the field access. | |
2468 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2469 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
2470 if (addr != (address)-1) { | |
2471 return Handle_Exception(exceptionInfo, addr); | |
2472 } | |
2473 } | |
2474 #endif | |
2475 | |
2476 // Stack overflow or null pointer exception in native code. | |
2477 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2478 exceptionInfo->ContextRecord); | |
2479 return EXCEPTION_CONTINUE_SEARCH; | |
2480 } | |
2481 | |
2482 if (in_java) { | |
2483 switch (exception_code) { | |
2484 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
2485 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
2486 | |
2487 case EXCEPTION_INT_OVERFLOW: | |
2488 return Handle_IDiv_Exception(exceptionInfo); | |
2489 | |
2490 } // switch | |
2491 } | |
2492 #ifndef _WIN64 | |
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2493 if (((thread->thread_state() == _thread_in_Java) || |
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2494 (thread->thread_state() == _thread_in_native)) && |
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2495 exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION) |
0 | 2496 { |
2497 LONG result=Handle_FLT_Exception(exceptionInfo); | |
2498 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
2499 } | |
2500 #endif //_WIN64 | |
2501 } | |
2502 | |
2503 if (exception_code != EXCEPTION_BREAKPOINT) { | |
2504 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2505 exceptionInfo->ContextRecord); | |
2506 } | |
2507 return EXCEPTION_CONTINUE_SEARCH; | |
2508 } | |
2509 | |
2510 #ifndef _WIN64 | |
2511 // Special care for fast JNI accessors. | |
2512 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
2513 // the heap gets shrunk before the field access. | |
2514 // Need to install our own structured exception handler since native code may | |
2515 // install its own. | |
2516 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2517 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2518 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2519 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
2520 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
2521 if (addr != (address)-1) { | |
2522 return Handle_Exception(exceptionInfo, addr); | |
2523 } | |
2524 } | |
2525 return EXCEPTION_CONTINUE_SEARCH; | |
2526 } | |
2527 | |
2528 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
2529 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
2530 __try { \ | |
2531 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
2532 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
2533 } \ | |
2534 return 0; \ | |
2535 } | |
2536 | |
2537 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
2538 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
2539 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
2540 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
2541 DEFINE_FAST_GETFIELD(jint, int, Int) | |
2542 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
2543 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
2544 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
2545 | |
2546 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
2547 switch (type) { | |
2548 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
2549 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
2550 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
2551 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
2552 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
2553 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
2554 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
2555 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
2556 default: ShouldNotReachHere(); | |
2557 } | |
2558 return (address)-1; | |
2559 } | |
2560 #endif | |
2561 | |
2562 // Virtual Memory | |
2563 | |
2564 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
2565 int os::vm_allocation_granularity() { | |
2566 return os::win32::vm_allocation_granularity(); | |
2567 } | |
2568 | |
2569 // Windows large page support is available on Windows 2003. In order to use | |
2570 // large page memory, the administrator must first assign additional privilege | |
2571 // to the user: | |
2572 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
2573 // + select Local Policies -> User Rights Assignment | |
2574 // + double click "Lock pages in memory", add users and/or groups | |
2575 // + reboot | |
2576 // Note the above steps are needed for administrator as well, as administrators | |
2577 // by default do not have the privilege to lock pages in memory. | |
2578 // | |
2579 // Note about Windows 2003: although the API supports committing large page | |
2580 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
2581 // scenario, I found through experiment it only uses large page if the entire | |
2582 // memory region is reserved and committed in a single VirtualAlloc() call. | |
2583 // This makes Windows large page support more or less like Solaris ISM, in | |
2584 // that the entire heap must be committed upfront. This probably will change | |
2585 // in the future, if so the code below needs to be revisited. | |
2586 | |
2587 #ifndef MEM_LARGE_PAGES | |
2588 #define MEM_LARGE_PAGES 0x20000000 | |
2589 #endif | |
2590 | |
2591 static HANDLE _hProcess; | |
2592 static HANDLE _hToken; | |
2593 | |
3885 | 2594 // Container for NUMA node list info |
2595 class NUMANodeListHolder { | |
2596 private: | |
2597 int *_numa_used_node_list; // allocated below | |
2598 int _numa_used_node_count; | |
2599 | |
2600 void free_node_list() { | |
2601 if (_numa_used_node_list != NULL) { | |
6197 | 2602 FREE_C_HEAP_ARRAY(int, _numa_used_node_list, mtInternal); |
3885 | 2603 } |
2604 } | |
2605 | |
2606 public: | |
2607 NUMANodeListHolder() { | |
2608 _numa_used_node_count = 0; | |
2609 _numa_used_node_list = NULL; | |
2610 // do rest of initialization in build routine (after function pointers are set up) | |
2611 } | |
2612 | |
2613 ~NUMANodeListHolder() { | |
2614 free_node_list(); | |
2615 } | |
2616 | |
2617 bool build() { | |
2618 DWORD_PTR proc_aff_mask; | |
2619 DWORD_PTR sys_aff_mask; | |
2620 if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false; | |
2621 ULONG highest_node_number; | |
2622 if (!os::Kernel32Dll::GetNumaHighestNodeNumber(&highest_node_number)) return false; | |
2623 free_node_list(); | |
6197 | 2624 _numa_used_node_list = NEW_C_HEAP_ARRAY(int, highest_node_number + 1, mtInternal); |
3885 | 2625 for (unsigned int i = 0; i <= highest_node_number; i++) { |
2626 ULONGLONG proc_mask_numa_node; | |
2627 if (!os::Kernel32Dll::GetNumaNodeProcessorMask(i, &proc_mask_numa_node)) return false; | |
2628 if ((proc_aff_mask & proc_mask_numa_node)!=0) { | |
2629 _numa_used_node_list[_numa_used_node_count++] = i; | |
2630 } | |
2631 } | |
2632 return (_numa_used_node_count > 1); | |
2633 } | |
2634 | |
2635 int get_count() {return _numa_used_node_count;} | |
2636 int get_node_list_entry(int n) { | |
2637 // for indexes out of range, returns -1 | |
2638 return (n < _numa_used_node_count ? _numa_used_node_list[n] : -1); | |
2639 } | |
2640 | |
2641 } numa_node_list_holder; | |
2642 | |
2643 | |
2644 | |
0 | 2645 static size_t _large_page_size = 0; |
2646 | |
2647 static bool resolve_functions_for_large_page_init() { | |
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2648 return os::Kernel32Dll::GetLargePageMinimumAvailable() && |
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2649 os::Advapi32Dll::AdvapiAvailable(); |
0 | 2650 } |
2651 | |
2652 static bool request_lock_memory_privilege() { | |
2653 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
2654 os::current_process_id()); | |
2655 | |
2656 LUID luid; | |
2657 if (_hProcess != NULL && | |
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2658 os::Advapi32Dll::OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && |
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2659 os::Advapi32Dll::LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { |
0 | 2660 |
2661 TOKEN_PRIVILEGES tp; | |
2662 tp.PrivilegeCount = 1; | |
2663 tp.Privileges[0].Luid = luid; | |
2664 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
2665 | |
2666 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
2667 // privilege. Check GetLastError() too. See MSDN document. | |
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2668 if (os::Advapi32Dll::AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && |
0 | 2669 (GetLastError() == ERROR_SUCCESS)) { |
2670 return true; | |
2671 } | |
2672 } | |
2673 | |
2674 return false; | |
2675 } | |
2676 | |
2677 static void cleanup_after_large_page_init() { | |
2678 if (_hProcess) CloseHandle(_hProcess); | |
2679 _hProcess = NULL; | |
2680 if (_hToken) CloseHandle(_hToken); | |
2681 _hToken = NULL; | |
2682 } | |
2683 | |
3885 | 2684 static bool numa_interleaving_init() { |
2685 bool success = false; | |
2686 bool use_numa_interleaving_specified = !FLAG_IS_DEFAULT(UseNUMAInterleaving); | |
2687 | |
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2688 // print a warning if UseNUMAInterleaving flag is specified on command line |
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2689 bool warn_on_failure = use_numa_interleaving_specified; |
3885 | 2690 # define WARN(msg) if (warn_on_failure) { warning(msg); } |
2691 | |
2692 // NUMAInterleaveGranularity cannot be less than vm_allocation_granularity (or _large_page_size if using large pages) | |
2693 size_t min_interleave_granularity = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
2694 NUMAInterleaveGranularity = align_size_up(NUMAInterleaveGranularity, min_interleave_granularity); | |
2695 | |
2696 if (os::Kernel32Dll::NumaCallsAvailable()) { | |
2697 if (numa_node_list_holder.build()) { | |
2698 if (PrintMiscellaneous && Verbose) { | |
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2699 tty->print("NUMA UsedNodeCount=%d, namely ", numa_node_list_holder.get_count()); |
3885 | 2700 for (int i = 0; i < numa_node_list_holder.get_count(); i++) { |
2701 tty->print("%d ", numa_node_list_holder.get_node_list_entry(i)); | |
2702 } | |
2703 tty->print("\n"); | |
2704 } | |
2705 success = true; | |
2706 } else { | |
2707 WARN("Process does not cover multiple NUMA nodes."); | |
2708 } | |
2709 } else { | |
2710 WARN("NUMA Interleaving is not supported by the operating system."); | |
2711 } | |
2712 if (!success) { | |
2713 if (use_numa_interleaving_specified) WARN("...Ignoring UseNUMAInterleaving flag."); | |
2714 } | |
2715 return success; | |
2716 #undef WARN | |
2717 } | |
2718 | |
2719 // this routine is used whenever we need to reserve a contiguous VA range | |
2720 // but we need to make separate VirtualAlloc calls for each piece of the range | |
2721 // Reasons for doing this: | |
2722 // * UseLargePagesIndividualAllocation was set (normally only needed on WS2003 but possible to be set otherwise) | |
2723 // * UseNUMAInterleaving requires a separate node for each piece | |
2724 static char* allocate_pages_individually(size_t bytes, char* addr, DWORD flags, DWORD prot, | |
2725 bool should_inject_error=false) { | |
2726 char * p_buf; | |
2727 // note: at setup time we guaranteed that NUMAInterleaveGranularity was aligned up to a page size | |
2728 size_t page_size = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
2729 size_t chunk_size = UseNUMAInterleaving ? NUMAInterleaveGranularity : page_size; | |
2730 | |
2731 // first reserve enough address space in advance since we want to be | |
2732 // able to break a single contiguous virtual address range into multiple | |
2733 // large page commits but WS2003 does not allow reserving large page space | |
2734 // so we just use 4K pages for reserve, this gives us a legal contiguous | |
2735 // address space. then we will deallocate that reservation, and re alloc | |
2736 // using large pages | |
2737 const size_t size_of_reserve = bytes + chunk_size; | |
2738 if (bytes > size_of_reserve) { | |
2739 // Overflowed. | |
2740 return NULL; | |
2741 } | |
2742 p_buf = (char *) VirtualAlloc(addr, | |
2743 size_of_reserve, // size of Reserve | |
2744 MEM_RESERVE, | |
2745 PAGE_READWRITE); | |
2746 // If reservation failed, return NULL | |
2747 if (p_buf == NULL) return NULL; | |
2748 | |
2749 os::release_memory(p_buf, bytes + chunk_size); | |
2750 | |
2751 // we still need to round up to a page boundary (in case we are using large pages) | |
2752 // but not to a chunk boundary (in case InterleavingGranularity doesn't align with page size) | |
2753 // instead we handle this in the bytes_to_rq computation below | |
2754 p_buf = (char *) align_size_up((size_t)p_buf, page_size); | |
2755 | |
2756 // now go through and allocate one chunk at a time until all bytes are | |
2757 // allocated | |
2758 size_t bytes_remaining = bytes; | |
2759 // An overflow of align_size_up() would have been caught above | |
2760 // in the calculation of size_of_reserve. | |
2761 char * next_alloc_addr = p_buf; | |
2762 HANDLE hProc = GetCurrentProcess(); | |
2763 | |
2764 #ifdef ASSERT | |
2765 // Variable for the failure injection | |
2766 long ran_num = os::random(); | |
2767 size_t fail_after = ran_num % bytes; | |
2768 #endif | |
2769 | |
2770 int count=0; | |
2771 while (bytes_remaining) { | |
2772 // select bytes_to_rq to get to the next chunk_size boundary | |
2773 | |
2774 size_t bytes_to_rq = MIN2(bytes_remaining, chunk_size - ((size_t)next_alloc_addr % chunk_size)); | |
2775 // Note allocate and commit | |
2776 char * p_new; | |
2777 | |
2778 #ifdef ASSERT | |
2779 bool inject_error_now = should_inject_error && (bytes_remaining <= fail_after); | |
2780 #else | |
2781 const bool inject_error_now = false; | |
2782 #endif | |
2783 | |
2784 if (inject_error_now) { | |
2785 p_new = NULL; | |
2786 } else { | |
2787 if (!UseNUMAInterleaving) { | |
2788 p_new = (char *) VirtualAlloc(next_alloc_addr, | |
2789 bytes_to_rq, | |
2790 flags, | |
2791 prot); | |
2792 } else { | |
2793 // get the next node to use from the used_node_list | |
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2794 assert(numa_node_list_holder.get_count() > 0, "Multiple NUMA nodes expected"); |
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2795 DWORD node = numa_node_list_holder.get_node_list_entry(count % numa_node_list_holder.get_count()); |
3885 | 2796 p_new = (char *)os::Kernel32Dll::VirtualAllocExNuma(hProc, |
2797 next_alloc_addr, | |
2798 bytes_to_rq, | |
2799 flags, | |
2800 prot, | |
2801 node); | |
2802 } | |
2803 } | |
2804 | |
2805 if (p_new == NULL) { | |
2806 // Free any allocated pages | |
2807 if (next_alloc_addr > p_buf) { | |
2808 // Some memory was committed so release it. | |
2809 size_t bytes_to_release = bytes - bytes_remaining; | |
2810 os::release_memory(p_buf, bytes_to_release); | |
2811 } | |
2812 #ifdef ASSERT | |
2813 if (should_inject_error) { | |
2814 if (TracePageSizes && Verbose) { | |
2815 tty->print_cr("Reserving pages individually failed."); | |
2816 } | |
2817 } | |
2818 #endif | |
2819 return NULL; | |
2820 } | |
2821 bytes_remaining -= bytes_to_rq; | |
2822 next_alloc_addr += bytes_to_rq; | |
2823 count++; | |
2824 } | |
2825 // made it this far, success | |
2826 return p_buf; | |
2827 } | |
2828 | |
2829 | |
2830 | |
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2831 void os::large_page_init() { |
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2832 if (!UseLargePages) return; |
0 | 2833 |
2834 // print a warning if any large page related flag is specified on command line | |
2835 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
2836 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
2837 bool success = false; | |
2838 | |
2839 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
2840 if (resolve_functions_for_large_page_init()) { | |
2841 if (request_lock_memory_privilege()) { | |
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2842 size_t s = os::Kernel32Dll::GetLargePageMinimum(); |
0 | 2843 if (s) { |
2844 #if defined(IA32) || defined(AMD64) | |
2845 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
2846 WARN("JVM cannot use large pages bigger than 4mb."); | |
2847 } else { | |
2848 #endif | |
2849 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
2850 _large_page_size = LargePageSizeInBytes; | |
2851 } else { | |
2852 _large_page_size = s; | |
2853 } | |
2854 success = true; | |
2855 #if defined(IA32) || defined(AMD64) | |
2856 } | |
2857 #endif | |
2858 } else { | |
2859 WARN("Large page is not supported by the processor."); | |
2860 } | |
2861 } else { | |
2862 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
2863 } | |
2864 } else { | |
2865 WARN("Large page is not supported by the operating system."); | |
2866 } | |
2867 #undef WARN | |
2868 | |
2869 const size_t default_page_size = (size_t) vm_page_size(); | |
2870 if (success && _large_page_size > default_page_size) { | |
2871 _page_sizes[0] = _large_page_size; | |
2872 _page_sizes[1] = default_page_size; | |
2873 _page_sizes[2] = 0; | |
2874 } | |
2875 | |
2876 cleanup_after_large_page_init(); | |
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2877 UseLargePages = success; |
0 | 2878 } |
2879 | |
2880 // On win32, one cannot release just a part of reserved memory, it's an | |
2881 // all or nothing deal. When we split a reservation, we must break the | |
2882 // reservation into two reservations. | |
6197 | 2883 void os::pd_split_reserved_memory(char *base, size_t size, size_t split, |
0 | 2884 bool realloc) { |
2885 if (size > 0) { | |
2886 release_memory(base, size); | |
2887 if (realloc) { | |
2888 reserve_memory(split, base); | |
2889 } | |
2890 if (size != split) { | |
2891 reserve_memory(size - split, base + split); | |
2892 } | |
2893 } | |
2894 } | |
2895 | |
6197 | 2896 char* os::pd_reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { |
0 | 2897 assert((size_t)addr % os::vm_allocation_granularity() == 0, |
2898 "reserve alignment"); | |
2899 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
3885 | 2900 char* res; |
2901 // note that if UseLargePages is on, all the areas that require interleaving | |
2902 // will go thru reserve_memory_special rather than thru here. | |
2903 bool use_individual = (UseNUMAInterleaving && !UseLargePages); | |
2904 if (!use_individual) { | |
2905 res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); | |
2906 } else { | |
2907 elapsedTimer reserveTimer; | |
2908 if( Verbose && PrintMiscellaneous ) reserveTimer.start(); | |
2909 // in numa interleaving, we have to allocate pages individually | |
2910 // (well really chunks of NUMAInterleaveGranularity size) | |
2911 res = allocate_pages_individually(bytes, addr, MEM_RESERVE, PAGE_READWRITE); | |
2912 if (res == NULL) { | |
2913 warning("NUMA page allocation failed"); | |
2914 } | |
2915 if( Verbose && PrintMiscellaneous ) { | |
2916 reserveTimer.stop(); | |
2917 tty->print_cr("reserve_memory of %Ix bytes took %ld ms (%ld ticks)", bytes, | |
2918 reserveTimer.milliseconds(), reserveTimer.ticks()); | |
2919 } | |
2920 } | |
0 | 2921 assert(res == NULL || addr == NULL || addr == res, |
2922 "Unexpected address from reserve."); | |
3885 | 2923 |
0 | 2924 return res; |
2925 } | |
2926 | |
2927 // Reserve memory at an arbitrary address, only if that area is | |
2928 // available (and not reserved for something else). | |
6197 | 2929 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
0 | 2930 // Windows os::reserve_memory() fails of the requested address range is |
2931 // not avilable. | |
2932 return reserve_memory(bytes, requested_addr); | |
2933 } | |
2934 | |
2935 size_t os::large_page_size() { | |
2936 return _large_page_size; | |
2937 } | |
2938 | |
2939 bool os::can_commit_large_page_memory() { | |
2940 // Windows only uses large page memory when the entire region is reserved | |
2941 // and committed in a single VirtualAlloc() call. This may change in the | |
2942 // future, but with Windows 2003 it's not possible to commit on demand. | |
2943 return false; | |
2944 } | |
2945 | |
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2946 bool os::can_execute_large_page_memory() { |
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2947 return true; |
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2948 } |
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2949 |
656 | 2950 char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) { |
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2951 |
717 | 2952 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
3885 | 2953 const DWORD flags = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
2954 | |
2955 // with large pages, there are two cases where we need to use Individual Allocation | |
2956 // 1) the UseLargePagesIndividualAllocation flag is set (set by default on WS2003) | |
2957 // 2) NUMA Interleaving is enabled, in which case we use a different node for each page | |
2958 if (UseLargePagesIndividualAllocation || UseNUMAInterleaving) { | |
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2959 if (TracePageSizes && Verbose) { |
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2960 tty->print_cr("Reserving large pages individually."); |
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2961 } |
3885 | 2962 char * p_buf = allocate_pages_individually(bytes, addr, flags, prot, LargePagesIndividualAllocationInjectError); |
2963 if (p_buf == NULL) { | |
2964 // give an appropriate warning message | |
2965 if (UseNUMAInterleaving) { | |
2966 warning("NUMA large page allocation failed, UseLargePages flag ignored"); | |
2967 } | |
2968 if (UseLargePagesIndividualAllocation) { | |
2969 warning("Individually allocated large pages failed, " | |
2970 "use -XX:-UseLargePagesIndividualAllocation to turn off"); | |
2971 } | |
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2972 return NULL; |
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2973 } |
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2974 |
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2975 return p_buf; |
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2976 |
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2977 } else { |
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2978 // normal policy just allocate it all at once |
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2979 DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
717 | 2980 char * res = (char *)VirtualAlloc(NULL, bytes, flag, prot); |
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2981 return res; |
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2982 } |
0 | 2983 } |
2984 | |
2985 bool os::release_memory_special(char* base, size_t bytes) { | |
2986 return release_memory(base, bytes); | |
2987 } | |
2988 | |
2989 void os::print_statistics() { | |
2990 } | |
2991 | |
6197 | 2992 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) { |
0 | 2993 if (bytes == 0) { |
2994 // Don't bother the OS with noops. | |
2995 return true; | |
2996 } | |
2997 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
2998 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
2999 // Don't attempt to print anything if the OS call fails. We're | |
3000 // probably low on resources, so the print itself may cause crashes. | |
3885 | 3001 |
3002 // unless we have NUMAInterleaving enabled, the range of a commit | |
3003 // is always within a reserve covered by a single VirtualAlloc | |
3004 // in that case we can just do a single commit for the requested size | |
3005 if (!UseNUMAInterleaving) { | |
3006 if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) return false; | |
3007 if (exec) { | |
3008 DWORD oldprot; | |
3009 // Windows doc says to use VirtualProtect to get execute permissions | |
3010 if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) return false; | |
3011 } | |
3012 return true; | |
656 | 3013 } else { |
3885 | 3014 |
3015 // when NUMAInterleaving is enabled, the commit might cover a range that | |
3016 // came from multiple VirtualAlloc reserves (using allocate_pages_individually). | |
3017 // VirtualQuery can help us determine that. The RegionSize that VirtualQuery | |
3018 // returns represents the number of bytes that can be committed in one step. | |
3019 size_t bytes_remaining = bytes; | |
3020 char * next_alloc_addr = addr; | |
3021 while (bytes_remaining > 0) { | |
3022 MEMORY_BASIC_INFORMATION alloc_info; | |
3023 VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info)); | |
3024 size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize); | |
3025 if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT, PAGE_READWRITE) == NULL) | |
3026 return false; | |
3027 if (exec) { | |
3028 DWORD oldprot; | |
3029 if (!VirtualProtect(next_alloc_addr, bytes_to_rq, PAGE_EXECUTE_READWRITE, &oldprot)) | |
3030 return false; | |
3031 } | |
3032 bytes_remaining -= bytes_to_rq; | |
3033 next_alloc_addr += bytes_to_rq; | |
3034 } | |
3035 } | |
3036 // if we made it this far, return true | |
3037 return true; | |
0 | 3038 } |
3039 | |
6197 | 3040 bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint, |
656 | 3041 bool exec) { |
3042 return commit_memory(addr, size, exec); | |
0 | 3043 } |
3044 | |
6197 | 3045 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
0 | 3046 if (bytes == 0) { |
3047 // Don't bother the OS with noops. | |
3048 return true; | |
3049 } | |
3050 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
3051 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
6197 | 3052 return (VirtualFree(addr, bytes, MEM_DECOMMIT) != 0); |
3053 } | |
3054 | |
3055 bool os::pd_release_memory(char* addr, size_t bytes) { | |
0 | 3056 return VirtualFree(addr, 0, MEM_RELEASE) != 0; |
3057 } | |
3058 | |
6197 | 3059 bool os::pd_create_stack_guard_pages(char* addr, size_t size) { |
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3060 return os::commit_memory(addr, size); |
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3061 } |
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3062 |
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3063 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
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3064 return os::uncommit_memory(addr, size); |
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3065 } |
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3066 |
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3067 // Set protections specified |
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3068 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
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3069 bool is_committed) { |
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3070 unsigned int p = 0; |
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3071 switch (prot) { |
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3072 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
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3073 case MEM_PROT_READ: p = PAGE_READONLY; break; |
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3074 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
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3075 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
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3076 default: |
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3077 ShouldNotReachHere(); |
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3078 } |
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3079 |
0 | 3080 DWORD old_status; |
237
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3081 |
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3082 // Strange enough, but on Win32 one can change protection only for committed |
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3083 // memory, not a big deal anyway, as bytes less or equal than 64K |
656 | 3084 if (!is_committed && !commit_memory(addr, bytes, prot == MEM_PROT_RWX)) { |
237
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3085 fatal("cannot commit protection page"); |
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3086 } |
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3087 // One cannot use os::guard_memory() here, as on Win32 guard page |
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3088 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
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3089 // |
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3090 // Pages in the region become guard pages. Any attempt to access a guard page |
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3091 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
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3092 // the guard page status. Guard pages thus act as a one-time access alarm. |
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3093 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
0 | 3094 } |
3095 | |
3096 bool os::guard_memory(char* addr, size_t bytes) { | |
3097 DWORD old_status; | |
477
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3098 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
0 | 3099 } |
3100 | |
3101 bool os::unguard_memory(char* addr, size_t bytes) { | |
3102 DWORD old_status; | |
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3103 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
0 | 3104 } |
3105 | |
6197 | 3106 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } |
3107 void os::pd_free_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
0 | 3108 void os::numa_make_global(char *addr, size_t bytes) { } |
141 | 3109 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
0 | 3110 bool os::numa_topology_changed() { return false; } |
3918
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3111 size_t os::numa_get_groups_num() { return MAX2(numa_node_list_holder.get_count(), 1); } |
0 | 3112 int os::numa_get_group_id() { return 0; } |
3113 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
3918
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3114 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
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3115 // Provide an answer for UMA systems |
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3116 ids[0] = 0; |
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3117 return 1; |
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3118 } else { |
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3119 // check for size bigger than actual groups_num |
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3120 size = MIN2(size, numa_get_groups_num()); |
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3121 for (int i = 0; i < (int)size; i++) { |
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3122 ids[i] = numa_node_list_holder.get_node_list_entry(i); |
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3123 } |
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3124 return size; |
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3125 } |
0 | 3126 } |
3127 | |
3128 bool os::get_page_info(char *start, page_info* info) { | |
3129 return false; | |
3130 } | |
3131 | |
3132 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
3133 return end; | |
3134 } | |
3135 | |
3136 char* os::non_memory_address_word() { | |
3137 // Must never look like an address returned by reserve_memory, | |
3138 // even in its subfields (as defined by the CPU immediate fields, | |
3139 // if the CPU splits constants across multiple instructions). | |
3140 return (char*)-1; | |
3141 } | |
3142 | |
3143 #define MAX_ERROR_COUNT 100 | |
3144 #define SYS_THREAD_ERROR 0xffffffffUL | |
3145 | |
3146 void os::pd_start_thread(Thread* thread) { | |
3147 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
3148 // Returns previous suspend state: | |
3149 // 0: Thread was not suspended | |
3150 // 1: Thread is running now | |
3151 // >1: Thread is still suspended. | |
3152 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
3153 } | |
3154 | |
3155 class HighResolutionInterval { | |
3156 // The default timer resolution seems to be 10 milliseconds. | |
3157 // (Where is this written down?) | |
3158 // If someone wants to sleep for only a fraction of the default, | |
3159 // then we set the timer resolution down to 1 millisecond for | |
3160 // the duration of their interval. | |
3161 // We carefully set the resolution back, since otherwise we | |
3162 // seem to incur an overhead (3%?) that we don't need. | |
3163 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
3164 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
3165 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
3166 // timeBeginPeriod() if the relative error exceeded some threshold. | |
3167 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
3168 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
3169 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
3170 // resolution timers running. | |
3171 private: | |
3172 jlong resolution; | |
3173 public: | |
3174 HighResolutionInterval(jlong ms) { | |
3175 resolution = ms % 10L; | |
3176 if (resolution != 0) { | |
3177 MMRESULT result = timeBeginPeriod(1L); | |
3178 } | |
3179 } | |
3180 ~HighResolutionInterval() { | |
3181 if (resolution != 0) { | |
3182 MMRESULT result = timeEndPeriod(1L); | |
3183 } | |
3184 resolution = 0L; | |
3185 } | |
3186 }; | |
3187 | |
3188 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
3189 jlong limit = (jlong) MAXDWORD; | |
3190 | |
3191 while(ms > limit) { | |
3192 int res; | |
3193 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
3194 return res; | |
3195 ms -= limit; | |
3196 } | |
3197 | |
3198 assert(thread == Thread::current(), "thread consistency check"); | |
3199 OSThread* osthread = thread->osthread(); | |
3200 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
3201 int result; | |
3202 if (interruptable) { | |
3203 assert(thread->is_Java_thread(), "must be java thread"); | |
3204 JavaThread *jt = (JavaThread *) thread; | |
3205 ThreadBlockInVM tbivm(jt); | |
3206 | |
3207 jt->set_suspend_equivalent(); | |
3208 // cleared by handle_special_suspend_equivalent_condition() or | |
3209 // java_suspend_self() via check_and_wait_while_suspended() | |
3210 | |
3211 HANDLE events[1]; | |
3212 events[0] = osthread->interrupt_event(); | |
3213 HighResolutionInterval *phri=NULL; | |
3214 if(!ForceTimeHighResolution) | |
3215 phri = new HighResolutionInterval( ms ); | |
3216 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
3217 result = OS_TIMEOUT; | |
3218 } else { | |
3219 ResetEvent(osthread->interrupt_event()); | |
3220 osthread->set_interrupted(false); | |
3221 result = OS_INTRPT; | |
3222 } | |
3223 delete phri; //if it is NULL, harmless | |
3224 | |
3225 // were we externally suspended while we were waiting? | |
3226 jt->check_and_wait_while_suspended(); | |
3227 } else { | |
3228 assert(!thread->is_Java_thread(), "must not be java thread"); | |
3229 Sleep((long) ms); | |
3230 result = OS_TIMEOUT; | |
3231 } | |
3232 return result; | |
3233 } | |
3234 | |
3235 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
3236 void os::infinite_sleep() { | |
3237 while (true) { // sleep forever ... | |
3238 Sleep(100000); // ... 100 seconds at a time | |
3239 } | |
3240 } | |
3241 | |
3242 typedef BOOL (WINAPI * STTSignature)(void) ; | |
3243 | |
3244 os::YieldResult os::NakedYield() { | |
3245 // Use either SwitchToThread() or Sleep(0) | |
3246 // Consider passing back the return value from SwitchToThread(). | |
3833
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3247 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
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3248 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
0 | 3249 } else { |
3833
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3250 Sleep(0); |
0 | 3251 } |
3252 return os::YIELD_UNKNOWN ; | |
3253 } | |
3254 | |
3255 void os::yield() { os::NakedYield(); } | |
3256 | |
3257 void os::yield_all(int attempts) { | |
3258 // Yields to all threads, including threads with lower priorities | |
3259 Sleep(1); | |
3260 } | |
3261 | |
3262 // Win32 only gives you access to seven real priorities at a time, | |
3263 // so we compress Java's ten down to seven. It would be better | |
3264 // if we dynamically adjusted relative priorities. | |
3265 | |
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3266 int os::java_to_os_priority[CriticalPriority + 1] = { |
0 | 3267 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
3268 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
3269 THREAD_PRIORITY_LOWEST, // 2 | |
3270 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
3271 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
3272 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
3273 THREAD_PRIORITY_NORMAL, // 6 | |
3274 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
3275 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
3276 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
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3277 THREAD_PRIORITY_HIGHEST, // 10 MaxPriority |
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3278 THREAD_PRIORITY_HIGHEST // 11 CriticalPriority |
0 | 3279 }; |
3280 | |
4854
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3281 int prio_policy1[CriticalPriority + 1] = { |
0 | 3282 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
3283 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
3284 THREAD_PRIORITY_LOWEST, // 2 | |
3285 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
3286 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
3287 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
3288 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
3289 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
3290 THREAD_PRIORITY_HIGHEST, // 8 | |
3291 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
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3292 THREAD_PRIORITY_TIME_CRITICAL, // 10 MaxPriority |
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3293 THREAD_PRIORITY_TIME_CRITICAL // 11 CriticalPriority |
0 | 3294 }; |
3295 | |
3296 static int prio_init() { | |
3297 // If ThreadPriorityPolicy is 1, switch tables | |
3298 if (ThreadPriorityPolicy == 1) { | |
3299 int i; | |
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3300 for (i = 0; i < CriticalPriority + 1; i++) { |
0 | 3301 os::java_to_os_priority[i] = prio_policy1[i]; |
3302 } | |
3303 } | |
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3304 if (UseCriticalJavaThreadPriority) { |
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3305 os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority] ; |
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3306 } |
0 | 3307 return 0; |
3308 } | |
3309 | |
3310 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
3311 if (!UseThreadPriorities) return OS_OK; | |
3312 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
3313 return ret ? OS_OK : OS_ERR; | |
3314 } | |
3315 | |
3316 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
3317 if ( !UseThreadPriorities ) { | |
3318 *priority_ptr = java_to_os_priority[NormPriority]; | |
3319 return OS_OK; | |
3320 } | |
3321 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
3322 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
3323 assert(false, "GetThreadPriority failed"); | |
3324 return OS_ERR; | |
3325 } | |
3326 *priority_ptr = os_prio; | |
3327 return OS_OK; | |
3328 } | |
3329 | |
3330 | |
3331 // Hint to the underlying OS that a task switch would not be good. | |
3332 // Void return because it's a hint and can fail. | |
3333 void os::hint_no_preempt() {} | |
3334 | |
3335 void os::interrupt(Thread* thread) { | |
3336 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
3337 "possibility of dangling Thread pointer"); | |
3338 | |
3339 OSThread* osthread = thread->osthread(); | |
3340 osthread->set_interrupted(true); | |
3341 // More than one thread can get here with the same value of osthread, | |
3342 // resulting in multiple notifications. We do, however, want the store | |
3343 // to interrupted() to be visible to other threads before we post | |
3344 // the interrupt event. | |
3345 OrderAccess::release(); | |
3346 SetEvent(osthread->interrupt_event()); | |
3347 // For JSR166: unpark after setting status | |
3348 if (thread->is_Java_thread()) | |
3349 ((JavaThread*)thread)->parker()->unpark(); | |
3350 | |
3351 ParkEvent * ev = thread->_ParkEvent ; | |
3352 if (ev != NULL) ev->unpark() ; | |
3353 | |
3354 } | |
3355 | |
3356 | |
3357 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
3358 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
3359 "possibility of dangling Thread pointer"); | |
3360 | |
3361 OSThread* osthread = thread->osthread(); | |
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3362 bool interrupted = osthread->interrupted(); |
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3363 // There is no synchronization between the setting of the interrupt |
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3364 // and it being cleared here. It is critical - see 6535709 - that |
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3365 // we only clear the interrupt state, and reset the interrupt event, |
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3366 // if we are going to report that we were indeed interrupted - else |
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3367 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
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3368 // depending on the timing |
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changeset
|
3369 if (interrupted && clear_interrupted) { |
0 | 3370 osthread->set_interrupted(false); |
3371 ResetEvent(osthread->interrupt_event()); | |
3372 } // Otherwise leave the interrupted state alone | |
3373 | |
3374 return interrupted; | |
3375 } | |
3376 | |
3377 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
3378 ExtendedPC os::get_thread_pc(Thread* thread) { | |
3379 CONTEXT context; | |
3380 context.ContextFlags = CONTEXT_CONTROL; | |
3381 HANDLE handle = thread->osthread()->thread_handle(); | |
3382 #ifdef _M_IA64 | |
3383 assert(0, "Fix get_thread_pc"); | |
3384 return ExtendedPC(NULL); | |
3385 #else | |
3386 if (GetThreadContext(handle, &context)) { | |
3387 #ifdef _M_AMD64 | |
3388 return ExtendedPC((address) context.Rip); | |
3389 #else | |
3390 return ExtendedPC((address) context.Eip); | |
3391 #endif | |
3392 } else { | |
3393 return ExtendedPC(NULL); | |
3394 } | |
3395 #endif | |
3396 } | |
3397 | |
3398 // GetCurrentThreadId() returns DWORD | |
3399 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
3400 | |
3401 static int _initial_pid = 0; | |
3402 | |
3403 int os::current_process_id() | |
3404 { | |
3405 return (_initial_pid ? _initial_pid : _getpid()); | |
3406 } | |
3407 | |
3408 int os::win32::_vm_page_size = 0; | |
3409 int os::win32::_vm_allocation_granularity = 0; | |
3410 int os::win32::_processor_type = 0; | |
3411 // Processor level is not available on non-NT systems, use vm_version instead | |
3412 int os::win32::_processor_level = 0; | |
3413 julong os::win32::_physical_memory = 0; | |
3414 size_t os::win32::_default_stack_size = 0; | |
3415 | |
3416 intx os::win32::_os_thread_limit = 0; | |
3417 volatile intx os::win32::_os_thread_count = 0; | |
3418 | |
3419 bool os::win32::_is_nt = false; | |
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3420 bool os::win32::_is_windows_2003 = false; |
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3421 bool os::win32::_is_windows_server = false; |
0 | 3422 |
3423 void os::win32::initialize_system_info() { | |
3424 SYSTEM_INFO si; | |
3425 GetSystemInfo(&si); | |
3426 _vm_page_size = si.dwPageSize; | |
3427 _vm_allocation_granularity = si.dwAllocationGranularity; | |
3428 _processor_type = si.dwProcessorType; | |
3429 _processor_level = si.wProcessorLevel; | |
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3430 set_processor_count(si.dwNumberOfProcessors); |
0 | 3431 |
877
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3432 MEMORYSTATUSEX ms; |
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3433 ms.dwLength = sizeof(ms); |
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3434 |
0 | 3435 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
3436 // dwMemoryLoad (% of memory in use) | |
877
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3437 GlobalMemoryStatusEx(&ms); |
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3438 _physical_memory = ms.ullTotalPhys; |
0 | 3439 |
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3440 OSVERSIONINFOEX oi; |
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3441 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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|
3442 GetVersionEx((OSVERSIONINFO*)&oi); |
0 | 3443 switch(oi.dwPlatformId) { |
3444 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
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3445 case VER_PLATFORM_WIN32_NT: |
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3446 _is_nt = true; |
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3447 { |
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3448 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
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3449 if (os_vers == 5002) { |
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3450 _is_windows_2003 = true; |
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3451 } |
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3452 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
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3453 oi.wProductType == VER_NT_SERVER) { |
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3454 _is_windows_server = true; |
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3455 } |
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3456 } |
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3457 break; |
0 | 3458 default: fatal("Unknown platform"); |
3459 } | |
3460 | |
3461 _default_stack_size = os::current_stack_size(); | |
3462 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
3463 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
3464 "stack size not a multiple of page size"); | |
3465 | |
3466 initialize_performance_counter(); | |
3467 | |
3468 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
3469 // known to deadlock the system, if the VM issues to thread operations with | |
3470 // a too high frequency, e.g., such as changing the priorities. | |
3471 // The 6000 seems to work well - no deadlocks has been notices on the test | |
3472 // programs that we have seen experience this problem. | |
3473 if (!os::win32::is_nt()) { | |
3474 StarvationMonitorInterval = 6000; | |
3475 } | |
3476 } | |
3477 | |
3478 | |
3833
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diff
changeset
|
3479 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
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|
3480 char path[MAX_PATH]; |
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|
3481 DWORD size; |
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|
3482 DWORD pathLen = (DWORD)sizeof(path); |
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3483 HINSTANCE result = NULL; |
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|
3484 |
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|
3485 // only allow library name without path component |
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|
3486 assert(strchr(name, '\\') == NULL, "path not allowed"); |
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|
3487 assert(strchr(name, ':') == NULL, "path not allowed"); |
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3488 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
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|
3489 jio_snprintf(ebuf, ebuflen, |
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changeset
|
3490 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
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|
3491 return NULL; |
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|
3492 } |
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|
3493 |
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|
3494 // search system directory |
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|
3495 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
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diff
changeset
|
3496 strcat(path, "\\"); |
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diff
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|
3497 strcat(path, name); |
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|
3498 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
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diff
changeset
|
3499 return result; |
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|
3500 } |
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|
3501 } |
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|
3502 |
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|
3503 // try Windows directory |
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diff
changeset
|
3504 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
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diff
changeset
|
3505 strcat(path, "\\"); |
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|
3506 strcat(path, name); |
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|
3507 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
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|
3508 return result; |
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|
3509 } |
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|
3510 } |
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|
3511 |
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changeset
|
3512 jio_snprintf(ebuf, ebuflen, |
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|
3513 "os::win32::load_windows_dll() cannot load %s from system directories.", name); |
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|
3514 return NULL; |
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|
3515 } |
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3516 |
0 | 3517 void os::win32::setmode_streams() { |
3518 _setmode(_fileno(stdin), _O_BINARY); | |
3519 _setmode(_fileno(stdout), _O_BINARY); | |
3520 _setmode(_fileno(stderr), _O_BINARY); | |
3521 } | |
3522 | |
3523 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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|
3524 bool os::is_debugger_attached() { |
da091bb67459
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|
3525 return IsDebuggerPresent() ? true : false; |
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|
3526 } |
da091bb67459
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|
3527 |
da091bb67459
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|
3528 |
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changeset
|
3529 void os::wait_for_keypress_at_exit(void) { |
da091bb67459
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diff
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|
3530 if (PauseAtExit) { |
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changeset
|
3531 fprintf(stderr, "Press any key to continue...\n"); |
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changeset
|
3532 fgetc(stdin); |
da091bb67459
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|
3533 } |
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changeset
|
3534 } |
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|
3535 |
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|
3536 |
0 | 3537 int os::message_box(const char* title, const char* message) { |
3538 int result = MessageBox(NULL, message, title, | |
3539 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
3540 return result == IDYES; | |
3541 } | |
3542 | |
3543 int os::allocate_thread_local_storage() { | |
3544 return TlsAlloc(); | |
3545 } | |
3546 | |
3547 | |
3548 void os::free_thread_local_storage(int index) { | |
3549 TlsFree(index); | |
3550 } | |
3551 | |
3552 | |
3553 void os::thread_local_storage_at_put(int index, void* value) { | |
3554 TlsSetValue(index, value); | |
3555 assert(thread_local_storage_at(index) == value, "Just checking"); | |
3556 } | |
3557 | |
3558 | |
3559 void* os::thread_local_storage_at(int index) { | |
3560 return TlsGetValue(index); | |
3561 } | |
3562 | |
3563 | |
3564 #ifndef PRODUCT | |
3565 #ifndef _WIN64 | |
3566 // Helpers to check whether NX protection is enabled | |
3567 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
3568 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
3569 pex->ExceptionRecord->NumberParameters > 0 && | |
3570 pex->ExceptionRecord->ExceptionInformation[0] == | |
3571 EXCEPTION_INFO_EXEC_VIOLATION) { | |
3572 return EXCEPTION_EXECUTE_HANDLER; | |
3573 } | |
3574 return EXCEPTION_CONTINUE_SEARCH; | |
3575 } | |
3576 | |
3577 void nx_check_protection() { | |
3578 // If NX is enabled we'll get an exception calling into code on the stack | |
3579 char code[] = { (char)0xC3 }; // ret | |
3580 void *code_ptr = (void *)code; | |
3581 __try { | |
3582 __asm call code_ptr | |
3583 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
3584 tty->print_raw_cr("NX protection detected."); | |
3585 } | |
3586 } | |
3587 #endif // _WIN64 | |
3588 #endif // PRODUCT | |
3589 | |
3590 // this is called _before_ the global arguments have been parsed | |
3591 void os::init(void) { | |
3592 _initial_pid = _getpid(); | |
3593 | |
3594 init_random(1234567); | |
3595 | |
3596 win32::initialize_system_info(); | |
3597 win32::setmode_streams(); | |
3598 init_page_sizes((size_t) win32::vm_page_size()); | |
3599 | |
3600 // For better scalability on MP systems (must be called after initialize_system_info) | |
3601 #ifndef PRODUCT | |
3602 if (is_MP()) { | |
3603 NoYieldsInMicrolock = true; | |
3604 } | |
3605 #endif | |
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3606 // This may be overridden later when argument processing is done. |
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3607 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
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3608 os::win32::is_windows_2003()); |
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3609 |
0 | 3610 // Initialize main_process and main_thread |
3611 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
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3612 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
0 | 3613 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
3614 fatal("DuplicateHandle failed\n"); | |
3615 } | |
3616 main_thread_id = (int) GetCurrentThreadId(); | |
3617 } | |
3618 | |
3619 // To install functions for atexit processing | |
3620 extern "C" { | |
3621 static void perfMemory_exit_helper() { | |
3622 perfMemory_exit(); | |
3623 } | |
3624 } | |
3625 | |
3626 // this is called _after_ the global arguments have been parsed | |
3627 jint os::init_2(void) { | |
3628 // Allocate a single page and mark it as readable for safepoint polling | |
3629 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
3630 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
3631 | |
3632 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
3633 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
3634 | |
3635 os::set_polling_page( polling_page ); | |
3636 | |
3637 #ifndef PRODUCT | |
3638 if( Verbose && PrintMiscellaneous ) | |
3639 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
3640 #endif | |
3641 | |
3642 if (!UseMembar) { | |
656 | 3643 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
0 | 3644 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
3645 | |
656 | 3646 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
0 | 3647 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
3648 | |
3649 os::set_memory_serialize_page( mem_serialize_page ); | |
3650 | |
3651 #ifndef PRODUCT | |
3652 if(Verbose && PrintMiscellaneous) | |
3653 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
3654 #endif | |
3885 | 3655 } |
0 | 3656 |
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3657 os::large_page_init(); |
0 | 3658 |
3659 // Setup Windows Exceptions | |
3660 | |
3661 // for debugging float code generation bugs | |
3662 if (ForceFloatExceptions) { | |
3663 #ifndef _WIN64 | |
3664 static long fp_control_word = 0; | |
3665 __asm { fstcw fp_control_word } | |
3666 // see Intel PPro Manual, Vol. 2, p 7-16 | |
3667 const long precision = 0x20; | |
3668 const long underflow = 0x10; | |
3669 const long overflow = 0x08; | |
3670 const long zero_div = 0x04; | |
3671 const long denorm = 0x02; | |
3672 const long invalid = 0x01; | |
3673 fp_control_word |= invalid; | |
3674 __asm { fldcw fp_control_word } | |
3675 #endif | |
3676 } | |
3677 | |
3678 // If stack_commit_size is 0, windows will reserve the default size, | |
3679 // but only commit a small portion of it. | |
3680 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
3681 size_t default_reserve_size = os::win32::default_stack_size(); | |
3682 size_t actual_reserve_size = stack_commit_size; | |
3683 if (stack_commit_size < default_reserve_size) { | |
3684 // If stack_commit_size == 0, we want this too | |
3685 actual_reserve_size = default_reserve_size; | |
3686 } | |
3687 | |
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3688 // 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
|
3689 // the java system classes, including StackOverflowError - depends on page |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3690 // 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
|
3691 // 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
|
3692 // class initialization depending on 32 or 64 bit VM. |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3693 size_t min_stack_allowed = |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3694 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3695 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3696 if (actual_reserve_size < min_stack_allowed) { |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3697 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
|
3698 "Specify at least %dk", |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3699 min_stack_allowed / K); |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3700 return JNI_ERR; |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3701 } |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3702 |
0 | 3703 JavaThread::set_stack_size_at_create(stack_commit_size); |
3704 | |
3705 // Calculate theoretical max. size of Threads to guard gainst artifical | |
3706 // out-of-memory situations, where all available address-space has been | |
3707 // reserved by thread stacks. | |
3708 assert(actual_reserve_size != 0, "Must have a stack"); | |
3709 | |
3710 // Calculate the thread limit when we should start doing Virtual Memory | |
3711 // banging. Currently when the threads will have used all but 200Mb of space. | |
3712 // | |
3713 // TODO: consider performing a similar calculation for commit size instead | |
3714 // as reserve size, since on a 64-bit platform we'll run into that more | |
3715 // often than running out of virtual memory space. We can use the | |
3716 // 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
|
3717 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
0 | 3718 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
3719 | |
3720 // at exit methods are called in the reverse order of their registration. | |
3721 // there is no limit to the number of functions registered. atexit does | |
3722 // not set errno. | |
3723 | |
3724 if (PerfAllowAtExitRegistration) { | |
3725 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
3726 // atexit functions can be delayed until process exit time, which | |
3727 // can be problematic for embedded VM situations. Embedded VMs should | |
3728 // call DestroyJavaVM() to assure that VM resources are released. | |
3729 | |
3730 // note: perfMemory_exit_helper atexit function may be removed in | |
3731 // the future if the appropriate cleanup code can be added to the | |
3732 // VM_Exit VMOperation's doit method. | |
3733 if (atexit(perfMemory_exit_helper) != 0) { | |
3734 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
3735 } | |
3736 } | |
3737 | |
3738 #ifndef _WIN64 | |
3739 // Print something if NX is enabled (win32 on AMD64) | |
3740 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
3741 #endif | |
3742 | |
3743 // initialize thread priority policy | |
3744 prio_init(); | |
3745 | |
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3746 if (UseNUMA && !ForceNUMA) { |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3747 UseNUMA = false; // We don't fully support this yet |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3748 } |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3749 |
3885 | 3750 if (UseNUMAInterleaving) { |
3751 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
3752 bool success = numa_interleaving_init(); | |
3753 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
|
3754 } |
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3755 |
0 | 3756 return JNI_OK; |
3757 } | |
3758 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3759 void os::init_3(void) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3760 return; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3761 } |
0 | 3762 |
3763 // Mark the polling page as unreadable | |
3764 void os::make_polling_page_unreadable(void) { | |
3765 DWORD old_status; | |
3766 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
3767 fatal("Could not disable polling page"); | |
3768 }; | |
3769 | |
3770 // Mark the polling page as readable | |
3771 void os::make_polling_page_readable(void) { | |
3772 DWORD old_status; | |
3773 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
3774 fatal("Could not enable polling page"); | |
3775 }; | |
3776 | |
3777 | |
3778 int os::stat(const char *path, struct stat *sbuf) { | |
3779 char pathbuf[MAX_PATH]; | |
3780 if (strlen(path) > MAX_PATH - 1) { | |
3781 errno = ENAMETOOLONG; | |
3782 return -1; | |
3783 } | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3784 os::native_path(strcpy(pathbuf, path)); |
0 | 3785 int ret = ::stat(pathbuf, sbuf); |
3786 if (sbuf != NULL && UseUTCFileTimestamp) { | |
3787 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
3788 // the system timezone and so can return different values for the | |
3789 // same file if/when daylight savings time changes. This adjustment | |
3790 // makes sure the same timestamp is returned regardless of the TZ. | |
3791 // | |
3792 // See: | |
3793 // http://msdn.microsoft.com/library/ | |
3794 // default.asp?url=/library/en-us/sysinfo/base/ | |
3795 // time_zone_information_str.asp | |
3796 // and | |
3797 // http://msdn.microsoft.com/library/default.asp?url= | |
3798 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
3799 // | |
3800 // NOTE: there is a insidious bug here: If the timezone is changed | |
3801 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
3802 // the adjustment we do here will be wrong and we'll return the wrong | |
3803 // value (which will likely end up creating an invalid class data | |
3804 // archive). Absent a better API for this, or some time zone locking | |
3805 // mechanism, we'll have to live with this risk. | |
3806 TIME_ZONE_INFORMATION tz; | |
3807 DWORD tzid = GetTimeZoneInformation(&tz); | |
3808 int daylightBias = | |
3809 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
3810 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
3811 } | |
3812 return ret; | |
3813 } | |
3814 | |
3815 | |
3816 #define FT2INT64(ft) \ | |
3817 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
3818 | |
3819 | |
3820 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
3821 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
3822 // of a thread. | |
3823 // | |
3824 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
3825 // the fast estimate available on the platform. | |
3826 | |
3827 // current_thread_cpu_time() is not optimized for Windows yet | |
3828 jlong os::current_thread_cpu_time() { | |
3829 // return user + sys since the cost is the same | |
3830 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
3831 } | |
3832 | |
3833 jlong os::thread_cpu_time(Thread* thread) { | |
3834 // consistent with what current_thread_cpu_time() returns. | |
3835 return os::thread_cpu_time(thread, true /* user+sys */); | |
3836 } | |
3837 | |
3838 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
3839 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
3840 } | |
3841 | |
3842 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
3843 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
3844 // If this function changes, os::is_thread_cpu_time_supported() should too | |
3845 if (os::win32::is_nt()) { | |
3846 FILETIME CreationTime; | |
3847 FILETIME ExitTime; | |
3848 FILETIME KernelTime; | |
3849 FILETIME UserTime; | |
3850 | |
3851 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
3852 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
3853 return -1; | |
3854 else | |
3855 if (user_sys_cpu_time) { | |
3856 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
3857 } else { | |
3858 return FT2INT64(UserTime) * 100; | |
3859 } | |
3860 } else { | |
3861 return (jlong) timeGetTime() * 1000000; | |
3862 } | |
3863 } | |
3864 | |
3865 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
3866 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
3867 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
3868 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
3869 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
3870 } | |
3871 | |
3872 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
3873 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
3874 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
3875 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
3876 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
3877 } | |
3878 | |
3879 bool os::is_thread_cpu_time_supported() { | |
3880 // see os::thread_cpu_time | |
3881 if (os::win32::is_nt()) { | |
3882 FILETIME CreationTime; | |
3883 FILETIME ExitTime; | |
3884 FILETIME KernelTime; | |
3885 FILETIME UserTime; | |
3886 | |
3887 if ( GetThreadTimes(GetCurrentThread(), | |
3888 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
3889 return false; | |
3890 else | |
3891 return true; | |
3892 } else { | |
3893 return false; | |
3894 } | |
3895 } | |
3896 | |
3897 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
3898 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
3899 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
3900 // If we wanted to implement loadavg on Windows, we have a few options: | |
3901 // | |
3902 // a) Query CPU usage and run queue length and "fake" an answer by | |
3903 // returning the CPU usage if it's under 100%, and the run queue | |
3904 // length otherwise. It turns out that querying is pretty slow | |
3905 // on Windows, on the order of 200 microseconds on a fast machine. | |
3906 // Note that on the Windows the CPU usage value is the % usage | |
3907 // since the last time the API was called (and the first call | |
3908 // returns 100%), so we'd have to deal with that as well. | |
3909 // | |
3910 // b) Sample the "fake" answer using a sampling thread and store | |
3911 // the answer in a global variable. The call to loadavg would | |
3912 // just return the value of the global, avoiding the slow query. | |
3913 // | |
3914 // c) Sample a better answer using exponential decay to smooth the | |
3915 // value. This is basically the algorithm used by UNIX kernels. | |
3916 // | |
3917 // Note that sampling thread starvation could affect both (b) and (c). | |
3918 int os::loadavg(double loadavg[], int nelem) { | |
3919 return -1; | |
3920 } | |
3921 | |
3922 | |
3923 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
3924 bool os::dont_yield() { | |
3925 return DontYieldALot; | |
3926 } | |
3927 | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3928 // 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
|
3929 // 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
|
3930 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3931 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
|
3932 char pathbuf[MAX_PATH]; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3933 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3934 if (strlen(path) > MAX_PATH - 1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3935 errno = ENAMETOOLONG; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3936 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3937 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3938 os::native_path(strcpy(pathbuf, path)); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3939 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
|
3940 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3941 |
0 | 3942 // Is a (classpath) directory empty? |
3943 bool os::dir_is_empty(const char* path) { | |
3944 WIN32_FIND_DATA fd; | |
3945 HANDLE f = FindFirstFile(path, &fd); | |
3946 if (f == INVALID_HANDLE_VALUE) { | |
3947 return true; | |
3948 } | |
3949 FindClose(f); | |
3950 return false; | |
3951 } | |
3952 | |
3953 // create binary file, rewriting existing file if required | |
3954 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
3955 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
3956 if (!rewrite_existing) { | |
3957 oflags |= _O_EXCL; | |
3958 } | |
3959 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
3960 } | |
3961 | |
3962 // return current position of file pointer | |
3963 jlong os::current_file_offset(int fd) { | |
3964 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
3965 } | |
3966 | |
3967 // move file pointer to the specified offset | |
3968 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
3969 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
3970 } | |
3971 | |
3972 | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3973 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
|
3974 return (jlong) ::_lseeki64(fd, offset, whence); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3975 } |
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 // 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
|
3978 // from src/windows/hpi/src/path_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3979 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3980 /* 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
|
3981 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
|
3982 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
|
3983 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
|
3984 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
|
3985 treat double-byte lead characters correctly. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3986 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3987 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
|
3988 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
|
3989 succeeds. */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3990 char * os::native_path(char *path) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3991 char *src = path, *dst = path, *end = path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3992 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
|
3993 point to the colon following the drive |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3994 letter */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3995 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3996 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3997 assert(((!::IsDBCSLeadByte('/')) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3998 && (!::IsDBCSLeadByte('\\')) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3999 && (!::IsDBCSLeadByte(':'))), |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4000 "Illegal lead byte"); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4001 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4002 /* Check for leading separators */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4003 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4004 while (isfilesep(*src)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4005 src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4006 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4007 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4008 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4009 /* 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
|
4010 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
|
4011 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
|
4012 "/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
|
4013 *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4014 colon = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4015 *dst++ = ':'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4016 src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4017 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4018 src = path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4019 if (isfilesep(src[0]) && isfilesep(src[1])) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4020 /* 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
|
4021 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
|
4022 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
|
4023 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
|
4024 src = dst = path + 1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4025 path[0] = '\\'; /* Force first separator to '\\' */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4026 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4027 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4028 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4029 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4030 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4031 /* 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
|
4032 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
|
4033 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
|
4034 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
|
4035 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4036 while (*src != '\0') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4037 if (isfilesep(*src)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4038 *dst++ = '\\'; src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4039 while (isfilesep(*src)) src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4040 if (*src == '\0') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4041 /* Check for trailing separator */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4042 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4043 if (colon == dst - 2) break; /* "z:\\" */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4044 if (dst == path + 1) break; /* "\\" */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4045 if (dst == path + 2 && isfilesep(path[0])) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4046 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4047 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
|
4048 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
|
4049 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
|
4050 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
|
4051 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
|
4052 directory of the current drive. */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4053 break; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4054 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4055 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
|
4056 remove trailing separator */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4057 break; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4058 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4059 end = dst; |
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 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4062 *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4063 if (*src) *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4064 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4065 } else { /* Copy a single-byte character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4066 char c = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4067 *dst++ = c; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4068 /* Space is not a legal ending character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4069 if (c != ' ') end = dst; |
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 } |
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 *end = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4075 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4076 /* 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
|
4077 if (colon == dst - 1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4078 path[2] = '.'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4079 path[3] = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4080 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4081 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4082 #ifdef DEBUG |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4083 jio_fprintf(stderr, "sysNativePath: %s\n", path); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4084 #endif DEBUG |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4085 return path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4086 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4087 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4088 // 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
|
4089 // 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
|
4090 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4091 int os::ftruncate(int fd, jlong length) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4092 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4093 long high = (long)(length >> 32); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4094 DWORD ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4095 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4096 if (h == (HANDLE)(-1)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4097 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4098 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4099 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4100 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4101 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4102 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4103 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4104 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4105 if (::SetEndOfFile(h) == FALSE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4106 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4107 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4108 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4109 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4110 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4111 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4112 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4113 // 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
|
4114 // 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
|
4115 // 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
|
4116 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4117 int os::fsync(int fd) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4118 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4119 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4120 if ( (!::FlushFileBuffers(handle)) && |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4121 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4122 /* from winerror.h */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4123 return -1; |
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 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4126 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4127 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4128 static int nonSeekAvailable(int, long *); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4129 static int stdinAvailable(int, long *); |
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 #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
|
4132 #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
|
4133 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4134 // 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
|
4135 // 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
|
4136 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4137 int os::available(int fd, jlong *bytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4138 jlong cur, end; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4139 struct _stati64 stbuf64; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4140 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4141 if (::_fstati64(fd, &stbuf64) >= 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4142 int mode = stbuf64.st_mode; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4143 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4144 int ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4145 long lpbytes; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4146 if (fd == 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4147 ret = stdinAvailable(fd, &lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4148 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4149 ret = nonSeekAvailable(fd, &lpbytes); |
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 (*bytes) = (jlong)(lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4152 return ret; |
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 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4155 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4156 } 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
|
4157 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4158 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4159 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4160 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4161 *bytes = end - cur; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4162 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4163 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4164 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4165 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4166 } |
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 // 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
|
4169 // 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
|
4170 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4171 static int nonSeekAvailable(int fd, long *pbytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4172 /* 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
|
4173 * (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
|
4174 * connected to an exec'd process). |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4175 * Standard Input is a special case. |
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 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4178 HANDLE han; |
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 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4181 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4182 } |
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 (! ::PeekNamedPipe(han, NULL, 0, NULL, (LPDWORD)pbytes, NULL)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4185 /* 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
|
4186 * 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
|
4187 * 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
|
4188 * The only alternative is to raise an Exception, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4189 * which isn't really warranted. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4190 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4191 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4192 return FALSE; |
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 *pbytes = 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4195 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4196 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4197 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4198 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4199 #define MAX_INPUT_EVENTS 2000 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4200 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4201 // 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
|
4202 // 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
|
4203 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4204 static int stdinAvailable(int fd, long *pbytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4205 HANDLE han; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4206 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
|
4207 DWORD numEvents = 0; /* Number of events in buffer */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4208 DWORD i = 0; /* Loop index */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4209 DWORD curLength = 0; /* Position marker */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4210 DWORD actualLength = 0; /* Number of bytes readable */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4211 BOOL error = FALSE; /* Error holder */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4212 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
|
4213 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4214 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
|
4215 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4216 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4217 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4218 /* 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
|
4219 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4220 if (error == 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4221 return nonSeekAvailable(fd, pbytes); |
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 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4224 /* 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
|
4225 if (numEvents > MAX_INPUT_EVENTS) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4226 numEvents = MAX_INPUT_EVENTS; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4227 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4228 |
6197 | 4229 lpBuffer = (INPUT_RECORD *)os::malloc(numEvents * sizeof(INPUT_RECORD), mtInternal); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4230 if (lpBuffer == NULL) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4231 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4232 } |
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 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4235 if (error == 0) { |
6197 | 4236 os::free(lpBuffer, mtInternal); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4237 return FALSE; |
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 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4240 /* 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
|
4241 for(i=0; i<numEvents; i++) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4242 if (lpBuffer[i].EventType == KEY_EVENT) { |
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 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4245 &(lpBuffer[i].Event); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4246 if (keyRecord->bKeyDown == TRUE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4247 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
828eafbd85cc
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1972
diff
changeset
|
4248 curLength++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4249 if (*keyPressed == '\r') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4250 actualLength = curLength; |
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6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4251 } |
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1972
diff
changeset
|
4252 } |
828eafbd85cc
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1972
diff
changeset
|
4253 } |
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1972
diff
changeset
|
4254 } |
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6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4255 |
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1972
diff
changeset
|
4256 if(lpBuffer != NULL) { |
6197 | 4257 os::free(lpBuffer, mtInternal); |
1980
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6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4258 } |
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1972
diff
changeset
|
4259 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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parents:
1972
diff
changeset
|
4260 *pbytes = (long) actualLength; |
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6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4261 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4262 } |
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1972
diff
changeset
|
4263 |
0 | 4264 // Map a block of memory. |
6197 | 4265 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
0 | 4266 char *addr, size_t bytes, bool read_only, |
4267 bool allow_exec) { | |
4268 HANDLE hFile; | |
4269 char* base; | |
4270 | |
4271 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
4272 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
4273 if (hFile == NULL) { | |
4274 if (PrintMiscellaneous && Verbose) { | |
4275 DWORD err = GetLastError(); | |
4276 tty->print_cr("CreateFile() failed: GetLastError->%ld."); | |
4277 } | |
4278 return NULL; | |
4279 } | |
4280 | |
4281 if (allow_exec) { | |
4282 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
4283 // unless it comes from a PE image (which the shared archive is not.) | |
4284 // Even VirtualProtect refuses to give execute access to mapped memory | |
4285 // that was not previously executable. | |
4286 // | |
4287 // Instead, stick the executable region in anonymous memory. Yuck. | |
4288 // Penalty is that ~4 pages will not be shareable - in the future | |
4289 // we might consider DLLizing the shared archive with a proper PE | |
4290 // header so that mapping executable + sharing is possible. | |
4291 | |
4292 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
4293 PAGE_READWRITE); | |
4294 if (base == NULL) { | |
4295 if (PrintMiscellaneous && Verbose) { | |
4296 DWORD err = GetLastError(); | |
4297 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
4298 } | |
4299 CloseHandle(hFile); | |
4300 return NULL; | |
4301 } | |
4302 | |
4303 DWORD bytes_read; | |
4304 OVERLAPPED overlapped; | |
4305 overlapped.Offset = (DWORD)file_offset; | |
4306 overlapped.OffsetHigh = 0; | |
4307 overlapped.hEvent = NULL; | |
4308 // ReadFile guarantees that if the return value is true, the requested | |
4309 // number of bytes were read before returning. | |
4310 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
4311 if (!res) { | |
4312 if (PrintMiscellaneous && Verbose) { | |
4313 DWORD err = GetLastError(); | |
4314 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
4315 } | |
4316 release_memory(base, bytes); | |
4317 CloseHandle(hFile); | |
4318 return NULL; | |
4319 } | |
4320 } else { | |
4321 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
4322 NULL /*file_name*/); | |
4323 if (hMap == NULL) { | |
4324 if (PrintMiscellaneous && Verbose) { | |
4325 DWORD err = GetLastError(); | |
4326 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld."); | |
4327 } | |
4328 CloseHandle(hFile); | |
4329 return NULL; | |
4330 } | |
4331 | |
4332 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
4333 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
4334 (DWORD)bytes, addr); | |
4335 if (base == NULL) { | |
4336 if (PrintMiscellaneous && Verbose) { | |
4337 DWORD err = GetLastError(); | |
4338 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
4339 } | |
4340 CloseHandle(hMap); | |
4341 CloseHandle(hFile); | |
4342 return NULL; | |
4343 } | |
4344 | |
4345 if (CloseHandle(hMap) == 0) { | |
4346 if (PrintMiscellaneous && Verbose) { | |
4347 DWORD err = GetLastError(); | |
4348 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
4349 } | |
4350 CloseHandle(hFile); | |
4351 return base; | |
4352 } | |
4353 } | |
4354 | |
4355 if (allow_exec) { | |
4356 DWORD old_protect; | |
4357 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
4358 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
4359 | |
4360 if (!res) { | |
4361 if (PrintMiscellaneous && Verbose) { | |
4362 DWORD err = GetLastError(); | |
4363 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
4364 } | |
4365 // Don't consider this a hard error, on IA32 even if the | |
4366 // VirtualProtect fails, we should still be able to execute | |
4367 CloseHandle(hFile); | |
4368 return base; | |
4369 } | |
4370 } | |
4371 | |
4372 if (CloseHandle(hFile) == 0) { | |
4373 if (PrintMiscellaneous && Verbose) { | |
4374 DWORD err = GetLastError(); | |
4375 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
4376 } | |
4377 return base; | |
4378 } | |
4379 | |
4380 return base; | |
4381 } | |
4382 | |
4383 | |
4384 // Remap a block of memory. | |
6197 | 4385 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
0 | 4386 char *addr, size_t bytes, bool read_only, |
4387 bool allow_exec) { | |
4388 // This OS does not allow existing memory maps to be remapped so we | |
4389 // have to unmap the memory before we remap it. | |
4390 if (!os::unmap_memory(addr, bytes)) { | |
4391 return NULL; | |
4392 } | |
4393 | |
4394 // There is a very small theoretical window between the unmap_memory() | |
4395 // call above and the map_memory() call below where a thread in native | |
4396 // code may be able to access an address that is no longer mapped. | |
4397 | |
6197 | 4398 return os::map_memory(fd, file_name, file_offset, addr, bytes, |
4399 read_only, allow_exec); | |
0 | 4400 } |
4401 | |
4402 | |
4403 // Unmap a block of memory. | |
4404 // Returns true=success, otherwise false. | |
4405 | |
6197 | 4406 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
0 | 4407 BOOL result = UnmapViewOfFile(addr); |
4408 if (result == 0) { | |
4409 if (PrintMiscellaneous && Verbose) { | |
4410 DWORD err = GetLastError(); | |
4411 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
4412 } | |
4413 return false; | |
4414 } | |
4415 return true; | |
4416 } | |
4417 | |
4418 void os::pause() { | |
4419 char filename[MAX_PATH]; | |
4420 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
4421 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
4422 } else { | |
4423 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
4424 } | |
4425 | |
4426 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
4427 if (fd != -1) { | |
4428 struct stat buf; | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4429 ::close(fd); |
0 | 4430 while (::stat(filename, &buf) == 0) { |
4431 Sleep(100); | |
4432 } | |
4433 } else { | |
4434 jio_fprintf(stderr, | |
4435 "Could not open pause file '%s', continuing immediately.\n", filename); | |
4436 } | |
4437 } | |
4438 | |
4439 // An Event wraps a win32 "CreateEvent" kernel handle. | |
4440 // | |
4441 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
4442 // | |
4443 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
4444 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
4445 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
4446 // In addition, an unpark() operation might fetch the handle field, but the | |
4447 // event could recycle between the fetch and the SetEvent() operation. | |
4448 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
4449 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
4450 // on an stale but recycled handle would be harmless, but in practice this might | |
4451 // confuse other non-Sun code, so it's not a viable approach. | |
4452 // | |
4453 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
4454 // with the Event. The event handle is never closed. This could be construed | |
4455 // as handle leakage, but only up to the maximum # of threads that have been extant | |
4456 // at any one time. This shouldn't be an issue, as windows platforms typically | |
4457 // permit a process to have hundreds of thousands of open handles. | |
4458 // | |
4459 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
4460 // and release unused handles. | |
4461 // | |
4462 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
4463 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
4464 // | |
4465 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
4466 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
4467 // | |
4468 // We use (2). | |
4469 // | |
4470 // TODO-FIXME: | |
4471 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
4472 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
4473 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
4474 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
4475 // into a single win32 CreateEvent() handle. | |
4476 // | |
4477 // _Event transitions in park() | |
4478 // -1 => -1 : illegal | |
4479 // 1 => 0 : pass - return immediately | |
4480 // 0 => -1 : block | |
4481 // | |
4482 // _Event serves as a restricted-range semaphore : | |
4483 // -1 : thread is blocked | |
4484 // 0 : neutral - thread is running or ready | |
4485 // 1 : signaled - thread is running or ready | |
4486 // | |
4487 // Another possible encoding of _Event would be | |
4488 // with explicit "PARKED" and "SIGNALED" bits. | |
4489 | |
4490 int os::PlatformEvent::park (jlong Millis) { | |
4491 guarantee (_ParkHandle != NULL , "Invariant") ; | |
4492 guarantee (Millis > 0 , "Invariant") ; | |
4493 int v ; | |
4494 | |
4495 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
4496 // the initial park() operation. | |
4497 | |
4498 for (;;) { | |
4499 v = _Event ; | |
4500 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
4501 } | |
4502 guarantee ((v == 0) || (v == 1), "invariant") ; | |
4503 if (v != 0) return OS_OK ; | |
4504 | |
4505 // Do this the hard way by blocking ... | |
4506 // TODO: consider a brief spin here, gated on the success of recent | |
4507 // spin attempts by this thread. | |
4508 // | |
4509 // We decompose long timeouts into series of shorter timed waits. | |
4510 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
4511 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
4512 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
4513 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
4514 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
4515 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
4516 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
4517 // for the already waited time. This policy does not admit any new outcomes. | |
4518 // In the future, however, we might want to track the accumulated wait time and | |
4519 // adjust Millis accordingly if we encounter a spurious wakeup. | |
4520 | |
4521 const int MAXTIMEOUT = 0x10000000 ; | |
4522 DWORD rv = WAIT_TIMEOUT ; | |
4523 while (_Event < 0 && Millis > 0) { | |
4524 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
4525 if (Millis > MAXTIMEOUT) { | |
4526 prd = MAXTIMEOUT ; | |
4527 } | |
4528 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
4529 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
4530 if (rv == WAIT_TIMEOUT) { | |
4531 Millis -= prd ; | |
4532 } | |
4533 } | |
4534 v = _Event ; | |
4535 _Event = 0 ; | |
4536 OrderAccess::fence() ; | |
4537 // If we encounter a nearly simultanous timeout expiry and unpark() | |
4538 // we return OS_OK indicating we awoke via unpark(). | |
4539 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
4540 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
4541 } | |
4542 | |
4543 void os::PlatformEvent::park () { | |
4544 guarantee (_ParkHandle != NULL, "Invariant") ; | |
4545 // Invariant: Only the thread associated with the Event/PlatformEvent | |
4546 // may call park(). | |
4547 int v ; | |
4548 for (;;) { | |
4549 v = _Event ; | |
4550 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
4551 } | |
4552 guarantee ((v == 0) || (v == 1), "invariant") ; | |
4553 if (v != 0) return ; | |
4554 | |
4555 // Do this the hard way by blocking ... | |
4556 // TODO: consider a brief spin here, gated on the success of recent | |
4557 // spin attempts by this thread. | |
4558 while (_Event < 0) { | |
4559 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
4560 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
4561 } | |
4562 | |
4563 // Usually we'll find _Event == 0 at this point, but as | |
4564 // an optional optimization we clear it, just in case can | |
4565 // multiple unpark() operations drove _Event up to 1. | |
4566 _Event = 0 ; | |
4567 OrderAccess::fence() ; | |
4568 guarantee (_Event >= 0, "invariant") ; | |
4569 } | |
4570 | |
4571 void os::PlatformEvent::unpark() { | |
4572 guarantee (_ParkHandle != NULL, "Invariant") ; | |
4573 int v ; | |
4574 for (;;) { | |
4575 v = _Event ; // Increment _Event if it's < 1. | |
4576 if (v > 0) { | |
4577 // If it's already signaled just return. | |
4578 // The LD of _Event could have reordered or be satisfied | |
4579 // by a read-aside from this processor's write buffer. | |
4580 // To avoid problems execute a barrier and then | |
4581 // ratify the value. A degenerate CAS() would also work. | |
4582 // Viz., CAS (v+0, &_Event, v) == v). | |
4583 OrderAccess::fence() ; | |
4584 if (_Event == v) return ; | |
4585 continue ; | |
4586 } | |
4587 if (Atomic::cmpxchg (v+1, &_Event, v) == v) break ; | |
4588 } | |
4589 if (v < 0) { | |
4590 ::SetEvent (_ParkHandle) ; | |
4591 } | |
4592 } | |
4593 | |
4594 | |
4595 // JSR166 | |
4596 // ------------------------------------------------------- | |
4597 | |
4598 /* | |
4599 * The Windows implementation of Park is very straightforward: Basic | |
4600 * operations on Win32 Events turn out to have the right semantics to | |
4601 * use them directly. We opportunistically resuse the event inherited | |
4602 * from Monitor. | |
4603 */ | |
4604 | |
4605 | |
4606 void Parker::park(bool isAbsolute, jlong time) { | |
4607 guarantee (_ParkEvent != NULL, "invariant") ; | |
4608 // First, demultiplex/decode time arguments | |
4609 if (time < 0) { // don't wait | |
4610 return; | |
4611 } | |
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
4612 else if (time == 0 && !isAbsolute) { |
0 | 4613 time = INFINITE; |
4614 } | |
4615 else if (isAbsolute) { | |
4616 time -= os::javaTimeMillis(); // convert to relative time | |
4617 if (time <= 0) // already elapsed | |
4618 return; | |
4619 } | |
4620 else { // relative | |
4621 time /= 1000000; // Must coarsen from nanos to millis | |
4622 if (time == 0) // Wait for the minimal time unit if zero | |
4623 time = 1; | |
4624 } | |
4625 | |
4626 JavaThread* thread = (JavaThread*)(Thread::current()); | |
4627 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
4628 JavaThread *jt = (JavaThread *)thread; | |
4629 | |
4630 // Don't wait if interrupted or already triggered | |
4631 if (Thread::is_interrupted(thread, false) || | |
4632 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
4633 ResetEvent(_ParkEvent); | |
4634 return; | |
4635 } | |
4636 else { | |
4637 ThreadBlockInVM tbivm(jt); | |
4638 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
4639 jt->set_suspend_equivalent(); | |
4640 | |
4641 WaitForSingleObject(_ParkEvent, time); | |
4642 ResetEvent(_ParkEvent); | |
4643 | |
4644 // If externally suspended while waiting, re-suspend | |
4645 if (jt->handle_special_suspend_equivalent_condition()) { | |
4646 jt->java_suspend_self(); | |
4647 } | |
4648 } | |
4649 } | |
4650 | |
4651 void Parker::unpark() { | |
4652 guarantee (_ParkEvent != NULL, "invariant") ; | |
4653 SetEvent(_ParkEvent); | |
4654 } | |
4655 | |
4656 // Run the specified command in a separate process. Return its exit value, | |
4657 // or -1 on failure (e.g. can't create a new process). | |
4658 int os::fork_and_exec(char* cmd) { | |
4659 STARTUPINFO si; | |
4660 PROCESS_INFORMATION pi; | |
4661 | |
4662 memset(&si, 0, sizeof(si)); | |
4663 si.cb = sizeof(si); | |
4664 memset(&pi, 0, sizeof(pi)); | |
4665 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
4666 cmd, // command line | |
4667 NULL, // process security attribute | |
4668 NULL, // thread security attribute | |
4669 TRUE, // inherits system handles | |
4670 0, // no creation flags | |
4671 NULL, // use parent's environment block | |
4672 NULL, // use parent's starting directory | |
4673 &si, // (in) startup information | |
4674 &pi); // (out) process information | |
4675 | |
4676 if (rslt) { | |
4677 // Wait until child process exits. | |
4678 WaitForSingleObject(pi.hProcess, INFINITE); | |
4679 | |
4680 DWORD exit_code; | |
4681 GetExitCodeProcess(pi.hProcess, &exit_code); | |
4682 | |
4683 // Close process and thread handles. | |
4684 CloseHandle(pi.hProcess); | |
4685 CloseHandle(pi.hThread); | |
4686 | |
4687 return (int)exit_code; | |
4688 } else { | |
4689 return -1; | |
4690 } | |
4691 } | |
4692 | |
4693 //-------------------------------------------------------------------------------------------------- | |
4694 // Non-product code | |
4695 | |
4696 static int mallocDebugIntervalCounter = 0; | |
4697 static int mallocDebugCounter = 0; | |
4698 bool os::check_heap(bool force) { | |
4699 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
4700 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
4701 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
4702 // wrong; at these points, eax contains the address of the offending block (I think). | |
4703 // To get to the exlicit error message(s) below, just continue twice. | |
4704 HANDLE heap = GetProcessHeap(); | |
4705 { HeapLock(heap); | |
4706 PROCESS_HEAP_ENTRY phe; | |
4707 phe.lpData = NULL; | |
4708 while (HeapWalk(heap, &phe) != 0) { | |
4709 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
4710 !HeapValidate(heap, 0, phe.lpData)) { | |
4711 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
4712 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
4713 fatal("corrupted C heap"); | |
4714 } | |
4715 } | |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
4716 DWORD err = GetLastError(); |
0 | 4717 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
|
4718 fatal(err_msg("heap walk aborted with error %d", err)); |
0 | 4719 } |
4720 HeapUnlock(heap); | |
4721 } | |
4722 mallocDebugIntervalCounter = 0; | |
4723 } | |
4724 return true; | |
4725 } | |
4726 | |
4727 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4728 bool os::find(address addr, outputStream* st) { |
0 | 4729 // Nothing yet |
4730 return false; | |
4731 } | |
4732 | |
4733 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
4734 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
4735 | |
4736 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
4737 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
4738 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
4739 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
4740 | |
4741 if (os::is_memory_serialize_page(thread, addr)) | |
4742 return EXCEPTION_CONTINUE_EXECUTION; | |
4743 } | |
4744 | |
4745 return EXCEPTION_CONTINUE_SEARCH; | |
4746 } | |
4747 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4748 // We don't build a headless jre for Windows |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4749 bool os::is_headless_jre() { return false; } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4750 |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4751 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4752 typedef CRITICAL_SECTION mutex_t; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4753 #define mutexInit(m) InitializeCriticalSection(m) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4754 #define mutexDestroy(m) DeleteCriticalSection(m) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4755 #define mutexLock(m) EnterCriticalSection(m) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4756 #define mutexUnlock(m) LeaveCriticalSection(m) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4757 |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4758 static bool sock_initialized = FALSE; |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4759 static mutex_t sockFnTableMutex; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4760 |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4761 static void initSock() { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4762 WSADATA wsadata; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4763 |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4764 if (!os::WinSock2Dll::WinSock2Available()) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4765 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
|
4766 ::GetLastError()); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4767 return; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4768 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4769 if (sock_initialized == TRUE) return; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4770 |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4771 ::mutexInit(&sockFnTableMutex); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4772 ::mutexLock(&sockFnTableMutex); |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4773 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
|
4774 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
|
4775 } |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4776 sock_initialized = TRUE; |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4777 ::mutexUnlock(&sockFnTableMutex); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4778 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4779 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4780 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
|
4781 if (!sock_initialized) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4782 initSock(); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4783 } |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4784 if (!os::WinSock2Dll::WinSock2Available()) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4785 return NULL; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4786 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4787 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4788 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4789 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4790 int os::socket_close(int fd) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4791 return ::closesocket(fd); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4792 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4793 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4794 int os::socket_available(int fd, jint *pbytes) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4795 int ret = ::ioctlsocket(fd, FIONREAD, (u_long*)pbytes); |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4796 return (ret < 0) ? 0 : 1; |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4797 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4798 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4799 int os::socket(int domain, int type, int protocol) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4800 return ::socket(domain, type, protocol); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4801 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4802 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4803 int os::listen(int fd, int count) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4804 return ::listen(fd, count); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4805 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4806 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4807 int os::connect(int fd, struct sockaddr* him, socklen_t len) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4808 return ::connect(fd, him, len); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4809 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4810 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4811 int os::accept(int fd, struct sockaddr* him, socklen_t* len) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4812 return ::accept(fd, him, len); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4813 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4814 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4815 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
|
4816 struct sockaddr* to, socklen_t tolen) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4817 |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4818 return ::sendto(fd, buf, (int)len, flags, to, tolen); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4819 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4820 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4821 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
|
4822 sockaddr* from, socklen_t* fromlen) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4823 |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4824 return ::recvfrom(fd, buf, (int)nBytes, flags, from, fromlen); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4825 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4826 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4827 int os::recv(int fd, char* buf, size_t nBytes, uint flags) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4828 return ::recv(fd, buf, (int)nBytes, flags); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4829 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4830 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4831 int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4832 return ::send(fd, buf, (int)nBytes, flags); |
1980
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 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4835 int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4836 return ::send(fd, buf, (int)nBytes, flags); |
1980
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::timeout(int fd, long timeout) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4840 fd_set tbl; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4841 struct timeval t; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4842 |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4843 t.tv_sec = timeout / 1000; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4844 t.tv_usec = (timeout % 1000) * 1000; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4845 |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4846 tbl.fd_count = 1; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4847 tbl.fd_array[0] = fd; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4848 |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4849 return ::select(1, &tbl, 0, 0, &t); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4850 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4851 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4852 int os::get_host_name(char* name, int namelen) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4853 return ::gethostname(name, namelen); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4854 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4855 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4856 int os::socket_shutdown(int fd, int howto) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4857 return ::shutdown(fd, howto); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4858 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4859 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4860 int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4861 return ::bind(fd, him, len); |
1980
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::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4865 return ::getsockname(fd, him, len); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4866 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4867 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4868 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
|
4869 char* optval, socklen_t* optlen) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4870 return ::getsockopt(fd, level, optname, optval, optlen); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4871 } |
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|
4872 |
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|
4873 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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diff
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|
4874 const char* optval, socklen_t optlen) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
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|
4875 return ::setsockopt(fd, level, optname, optval, optlen); |
1980
828eafbd85cc
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|
4876 } |
3833
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4877 |
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|
4878 |
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|
4879 // Kernel32 API |
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4880 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
3885 | 4881 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
4882 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
4883 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
6197 | 4884 typedef USHORT (WINAPI* RtlCaptureStackBackTrace_Fn)(ULONG, ULONG, PVOID*, PULONG); |
3885 | 4885 |
3833
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4886 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
3885 | 4887 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
4888 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
4889 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
6197 | 4890 RtlCaptureStackBackTrace_Fn os::Kernel32Dll::_RtlCaptureStackBackTrace = NULL; |
4891 | |
4892 | |
3833
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4893 BOOL os::Kernel32Dll::initialized = FALSE; |
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4894 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
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4895 assert(initialized && _GetLargePageMinimum != NULL, |
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4896 "GetLargePageMinimumAvailable() not yet called"); |
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4897 return _GetLargePageMinimum(); |
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4898 } |
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|
4899 |
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|
4900 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
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4901 if (!initialized) { |
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|
4902 initialize(); |
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4903 } |
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|
4904 return _GetLargePageMinimum != NULL; |
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4905 } |
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|
4906 |
3885 | 4907 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
4908 if (!initialized) { | |
4909 initialize(); | |
4910 } | |
4911 return _VirtualAllocExNuma != NULL; | |
4912 } | |
4913 | |
4914 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
4915 assert(initialized && _VirtualAllocExNuma != NULL, | |
4916 "NUMACallsAvailable() not yet called"); | |
4917 | |
4918 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
4919 } | |
4920 | |
4921 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
4922 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
4923 "NUMACallsAvailable() not yet called"); | |
4924 | |
4925 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
4926 } | |
4927 | |
4928 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
4929 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
4930 "NUMACallsAvailable() not yet called"); | |
4931 | |
4932 return _GetNumaNodeProcessorMask(node, proc_mask); | |
4933 } | |
4934 | |
6197 | 4935 USHORT os::Kernel32Dll::RtlCaptureStackBackTrace(ULONG FrameToSkip, |
4936 ULONG FrameToCapture, PVOID* BackTrace, PULONG BackTraceHash) { | |
4937 if (!initialized) { | |
4938 initialize(); | |
4939 } | |
4940 | |
4941 if (_RtlCaptureStackBackTrace != NULL) { | |
4942 return _RtlCaptureStackBackTrace(FrameToSkip, FrameToCapture, | |
4943 BackTrace, BackTraceHash); | |
4944 } else { | |
4945 return 0; | |
4946 } | |
4947 } | |
3885 | 4948 |
4949 void os::Kernel32Dll::initializeCommon() { | |
4950 if (!initialized) { | |
4951 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
4952 assert(handle != NULL, "Just check"); | |
4953 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
4954 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
4955 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
4956 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
6197 | 4957 _RtlCaptureStackBackTrace = (RtlCaptureStackBackTrace_Fn)::GetProcAddress(handle, "RtlCaptureStackBackTrace"); |
3885 | 4958 initialized = TRUE; |
4959 } | |
4960 } | |
4961 | |
4962 | |
3833
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4963 |
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|
4964 #ifndef JDK6_OR_EARLIER |
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4965 |
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|
4966 void os::Kernel32Dll::initialize() { |
3885 | 4967 initializeCommon(); |
3833
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|
4968 } |
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|
4969 |
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|
4970 |
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|
4971 // Kernel32 API |
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|
4972 inline BOOL os::Kernel32Dll::SwitchToThread() { |
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|
4973 return ::SwitchToThread(); |
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|
4974 } |
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|
4975 |
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|
4976 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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|
4977 return true; |
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|
4978 } |
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|
4979 |
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|
4980 // Help tools |
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|
4981 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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|
4982 return true; |
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|
4983 } |
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|
4984 |
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|
4985 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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|
4986 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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|
4987 } |
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|
4988 |
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|
4989 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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|
4990 return ::Module32First(hSnapshot, lpme); |
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|
4991 } |
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|
4992 |
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|
4993 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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|
4994 return ::Module32Next(hSnapshot, lpme); |
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|
4995 } |
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|
4996 |
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|
4997 |
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|
4998 inline BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
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|
4999 return true; |
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|
5000 } |
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|
5001 |
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|
5002 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
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|
5003 ::GetNativeSystemInfo(lpSystemInfo); |
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|
5004 } |
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|
5005 |
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|
5006 // PSAPI API |
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|
5007 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
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5008 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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|
5009 } |
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|
5010 |
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|
5011 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
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|
5012 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
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|
5013 } |
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|
5014 |
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|
5015 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
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|
5016 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
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|
5017 } |
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|
5018 |
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|
5019 inline BOOL os::PSApiDll::PSApiAvailable() { |
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|
5020 return true; |
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|
5021 } |
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|
5022 |
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|
5023 |
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|
5024 // WinSock2 API |
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|
5025 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
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5026 return ::WSAStartup(wVersionRequested, lpWSAData); |
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5027 } |
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|
5028 |
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|
5029 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
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5030 return ::gethostbyname(name); |
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5031 } |
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|
5032 |
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|
5033 inline BOOL os::WinSock2Dll::WinSock2Available() { |
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|
5034 return true; |
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|
5035 } |
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5036 |
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5037 // Advapi API |
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5038 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
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5039 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
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5040 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
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5041 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
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5042 BufferLength, PreviousState, ReturnLength); |
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5043 } |
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5044 |
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5045 inline BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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5046 PHANDLE TokenHandle) { |
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5047 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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5048 } |
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5049 |
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5050 inline BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
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5051 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
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5052 } |
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5053 |
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5054 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
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5055 return true; |
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5056 } |
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5057 |
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5058 #else |
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5059 // Kernel32 API |
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5060 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
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5061 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
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5062 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
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5063 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
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5064 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
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5065 |
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5066 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
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5067 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
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5068 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
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5069 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
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5070 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
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5071 |
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5072 void os::Kernel32Dll::initialize() { |
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5073 if (!initialized) { |
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5074 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
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5075 assert(handle != NULL, "Just check"); |
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5076 |
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5077 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
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5078 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
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5079 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
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5080 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
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5081 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
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5082 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
3885 | 5083 initializeCommon(); // resolve the functions that always need resolving |
3833
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5084 |
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5085 initialized = TRUE; |
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5086 } |
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5087 } |
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5088 |
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5089 BOOL os::Kernel32Dll::SwitchToThread() { |
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5090 assert(initialized && _SwitchToThread != NULL, |
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5091 "SwitchToThreadAvailable() not yet called"); |
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5092 return _SwitchToThread(); |
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5093 } |
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|
5094 |
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|
5095 |
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5096 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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5097 if (!initialized) { |
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5098 initialize(); |
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5099 } |
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5100 return _SwitchToThread != NULL; |
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5101 } |
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|
5102 |
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5103 // Help tools |
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5104 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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5105 if (!initialized) { |
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5106 initialize(); |
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5107 } |
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5108 return _CreateToolhelp32Snapshot != NULL && |
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5109 _Module32First != NULL && |
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5110 _Module32Next != NULL; |
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5111 } |
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|
5112 |
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5113 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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5114 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
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5115 "HelpToolsAvailable() not yet called"); |
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5116 |
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5117 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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5118 } |
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5119 |
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5120 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5121 assert(initialized && _Module32First != NULL, |
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5122 "HelpToolsAvailable() not yet called"); |
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5123 |
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5124 return _Module32First(hSnapshot, lpme); |
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5125 } |
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5126 |
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5127 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5128 assert(initialized && _Module32Next != NULL, |
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5129 "HelpToolsAvailable() not yet called"); |
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5130 |
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5131 return _Module32Next(hSnapshot, lpme); |
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5132 } |
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5133 |
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5134 |
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5135 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
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5136 if (!initialized) { |
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5137 initialize(); |
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5138 } |
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5139 return _GetNativeSystemInfo != NULL; |
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5140 } |
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5141 |
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5142 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
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5143 assert(initialized && _GetNativeSystemInfo != NULL, |
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5144 "GetNativeSystemInfoAvailable() not yet called"); |
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5145 |
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5146 _GetNativeSystemInfo(lpSystemInfo); |
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5147 } |
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5148 |
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5149 // PSAPI API |
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5150 |
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5151 |
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5152 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
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5153 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
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5154 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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5155 |
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5156 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
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5157 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
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5158 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
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5159 BOOL os::PSApiDll::initialized = FALSE; |
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5160 |
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5161 void os::PSApiDll::initialize() { |
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5162 if (!initialized) { |
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5163 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
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5164 if (handle != NULL) { |
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5165 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
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5166 "EnumProcessModules"); |
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5167 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
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5168 "GetModuleFileNameExA"); |
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5169 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
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5170 "GetModuleInformation"); |
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5171 } |
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5172 initialized = TRUE; |
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5173 } |
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5174 } |
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5175 |
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|
5176 |
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|
5177 |
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5178 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
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5179 assert(initialized && _EnumProcessModules != NULL, |
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5180 "PSApiAvailable() not yet called"); |
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5181 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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5182 } |
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5183 |
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5184 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
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5185 assert(initialized && _GetModuleFileNameEx != NULL, |
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5186 "PSApiAvailable() not yet called"); |
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5187 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
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5188 } |
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5189 |
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5190 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
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5191 assert(initialized && _GetModuleInformation != NULL, |
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5192 "PSApiAvailable() not yet called"); |
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5193 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
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5194 } |
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5195 |
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5196 BOOL os::PSApiDll::PSApiAvailable() { |
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5197 if (!initialized) { |
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5198 initialize(); |
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5199 } |
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5200 return _EnumProcessModules != NULL && |
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5201 _GetModuleFileNameEx != NULL && |
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5202 _GetModuleInformation != NULL; |
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5203 } |
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5204 |
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|
5205 |
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5206 // WinSock2 API |
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5207 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
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5208 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
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5209 |
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5210 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
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5211 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
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5212 BOOL os::WinSock2Dll::initialized = FALSE; |
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5213 |
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5214 void os::WinSock2Dll::initialize() { |
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5215 if (!initialized) { |
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5216 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
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5217 if (handle != NULL) { |
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5218 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
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5219 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
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5220 } |
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5221 initialized = TRUE; |
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5222 } |
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5223 } |
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|
5224 |
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|
5225 |
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5226 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
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5227 assert(initialized && _WSAStartup != NULL, |
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5228 "WinSock2Available() not yet called"); |
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5229 return _WSAStartup(wVersionRequested, lpWSAData); |
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5230 } |
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|
5231 |
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5232 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
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5233 assert(initialized && _gethostbyname != NULL, |
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5234 "WinSock2Available() not yet called"); |
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5235 return _gethostbyname(name); |
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5236 } |
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|
5237 |
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5238 BOOL os::WinSock2Dll::WinSock2Available() { |
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5239 if (!initialized) { |
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5240 initialize(); |
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5241 } |
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5242 return _WSAStartup != NULL && |
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5243 _gethostbyname != NULL; |
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5244 } |
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5245 |
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5246 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
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5247 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
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5248 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
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5249 |
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5250 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
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5251 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
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5252 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
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5253 BOOL os::Advapi32Dll::initialized = FALSE; |
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5254 |
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5255 void os::Advapi32Dll::initialize() { |
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5256 if (!initialized) { |
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5257 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
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5258 if (handle != NULL) { |
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5259 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
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5260 "AdjustTokenPrivileges"); |
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5261 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
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5262 "OpenProcessToken"); |
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5263 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
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5264 "LookupPrivilegeValueA"); |
3833
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5265 } |
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5266 initialized = TRUE; |
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5267 } |
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5268 } |
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5269 |
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5270 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
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5271 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
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5272 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
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5273 assert(initialized && _AdjustTokenPrivileges != NULL, |
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5274 "AdvapiAvailable() not yet called"); |
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5275 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
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5276 BufferLength, PreviousState, ReturnLength); |
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5277 } |
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5278 |
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5279 BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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5280 PHANDLE TokenHandle) { |
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5281 assert(initialized && _OpenProcessToken != NULL, |
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5282 "AdvapiAvailable() not yet called"); |
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5283 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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5284 } |
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5285 |
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5286 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
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5287 assert(initialized && _LookupPrivilegeValue != NULL, |
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5288 "AdvapiAvailable() not yet called"); |
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5289 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
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5290 } |
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5291 |
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5292 BOOL os::Advapi32Dll::AdvapiAvailable() { |
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5293 if (!initialized) { |
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5294 initialize(); |
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5295 } |
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5296 return _AdjustTokenPrivileges != NULL && |
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5297 _OpenProcessToken != NULL && |
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5298 _LookupPrivilegeValue != NULL; |
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5299 } |
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5300 |
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5301 #endif |