Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.cpp @ 20198:c49dcaf78a65
8042737: Introduce umbrella header prefetch.inline.hpp
Reviewed-by: twisti, stefank
author | goetz |
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date | Thu, 08 May 2014 15:37:17 +0200 |
parents | ce8f6bb717c9 |
children | d22136881b85 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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" | |
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35 #include "compiler/disassembler.hpp" |
1972 | 36 #include "interpreter/interpreter.hpp" |
37 #include "jvm_windows.h" | |
38 #include "memory/allocation.inline.hpp" | |
39 #include "memory/filemap.hpp" | |
40 #include "mutex_windows.inline.hpp" | |
41 #include "oops/oop.inline.hpp" | |
42 #include "os_share_windows.hpp" | |
43 #include "prims/jniFastGetField.hpp" | |
44 #include "prims/jvm.h" | |
45 #include "prims/jvm_misc.hpp" | |
46 #include "runtime/arguments.hpp" | |
47 #include "runtime/extendedPC.hpp" | |
48 #include "runtime/globals.hpp" | |
49 #include "runtime/interfaceSupport.hpp" | |
50 #include "runtime/java.hpp" | |
51 #include "runtime/javaCalls.hpp" | |
52 #include "runtime/mutexLocker.hpp" | |
53 #include "runtime/objectMonitor.hpp" | |
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54 #include "runtime/orderAccess.inline.hpp" |
1972 | 55 #include "runtime/osThread.hpp" |
56 #include "runtime/perfMemory.hpp" | |
57 #include "runtime/sharedRuntime.hpp" | |
58 #include "runtime/statSampler.hpp" | |
59 #include "runtime/stubRoutines.hpp" | |
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60 #include "runtime/thread.inline.hpp" |
1972 | 61 #include "runtime/threadCritical.hpp" |
62 #include "runtime/timer.hpp" | |
63 #include "services/attachListener.hpp" | |
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64 #include "services/memTracker.hpp" |
1972 | 65 #include "services/runtimeService.hpp" |
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66 #include "utilities/decoder.hpp" |
1972 | 67 #include "utilities/defaultStream.hpp" |
68 #include "utilities/events.hpp" | |
69 #include "utilities/growableArray.hpp" | |
70 #include "utilities/vmError.hpp" | |
0 | 71 |
72 #ifdef _DEBUG | |
73 #include <crtdbg.h> | |
74 #endif | |
75 | |
76 | |
77 #include <windows.h> | |
78 #include <sys/types.h> | |
79 #include <sys/stat.h> | |
80 #include <sys/timeb.h> | |
81 #include <objidl.h> | |
82 #include <shlobj.h> | |
83 | |
84 #include <malloc.h> | |
85 #include <signal.h> | |
86 #include <direct.h> | |
87 #include <errno.h> | |
88 #include <fcntl.h> | |
89 #include <io.h> | |
90 #include <process.h> // For _beginthreadex(), _endthreadex() | |
91 #include <imagehlp.h> // For os::dll_address_to_function_name | |
92 /* for enumerating dll libraries */ | |
93 #include <vdmdbg.h> | |
94 | |
95 // for timer info max values which include all bits | |
96 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
97 | |
98 // For DLL loading/load error detection | |
99 // Values of PE COFF | |
100 #define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c | |
101 #define IMAGE_FILE_SIGNATURE_LENGTH 4 | |
102 | |
103 static HANDLE main_process; | |
104 static HANDLE main_thread; | |
105 static int main_thread_id; | |
106 | |
107 static FILETIME process_creation_time; | |
108 static FILETIME process_exit_time; | |
109 static FILETIME process_user_time; | |
110 static FILETIME process_kernel_time; | |
111 | |
112 #ifdef _M_IA64 | |
113 #define __CPU__ ia64 | |
114 #elif _M_AMD64 | |
115 #define __CPU__ amd64 | |
116 #else | |
117 #define __CPU__ i486 | |
118 #endif | |
119 | |
120 // save DLL module handle, used by GetModuleFileName | |
121 | |
122 HINSTANCE vm_lib_handle; | |
123 | |
124 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
125 switch (reason) { | |
126 case DLL_PROCESS_ATTACH: | |
127 vm_lib_handle = hinst; | |
128 if(ForceTimeHighResolution) | |
129 timeBeginPeriod(1L); | |
130 break; | |
131 case DLL_PROCESS_DETACH: | |
132 if(ForceTimeHighResolution) | |
133 timeEndPeriod(1L); | |
134 break; | |
135 default: | |
136 break; | |
137 } | |
138 return true; | |
139 } | |
140 | |
141 static inline double fileTimeAsDouble(FILETIME* time) { | |
142 const double high = (double) ((unsigned int) ~0); | |
143 const double split = 10000000.0; | |
144 double result = (time->dwLowDateTime / split) + | |
145 time->dwHighDateTime * (high/split); | |
146 return result; | |
147 } | |
148 | |
149 // Implementation of os | |
150 | |
151 bool os::getenv(const char* name, char* buffer, int len) { | |
152 int result = GetEnvironmentVariable(name, buffer, len); | |
153 return result > 0 && result < len; | |
154 } | |
155 | |
156 | |
157 // No setuid programs under Windows. | |
158 bool os::have_special_privileges() { | |
159 return false; | |
160 } | |
161 | |
162 | |
163 // This method is a periodic task to check for misbehaving JNI applications | |
164 // under CheckJNI, we can add any periodic checks here. | |
165 // For Windows at the moment does nothing | |
166 void os::run_periodic_checks() { | |
167 return; | |
168 } | |
169 | |
170 #ifndef _WIN64 | |
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171 // previous UnhandledExceptionFilter, if there is one |
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172 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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173 |
0 | 174 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
175 #endif | |
176 void os::init_system_properties_values() { | |
177 /* sysclasspath, java_home, dll_dir */ | |
178 { | |
179 char *home_path; | |
180 char *dll_path; | |
181 char *pslash; | |
182 char *bin = "\\bin"; | |
183 char home_dir[MAX_PATH]; | |
184 | |
185 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
186 os::jvm_path(home_dir, sizeof(home_dir)); | |
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187 // Found the full path to jvm.dll. |
0 | 188 // Now cut the path to <java_home>/jre if we can. |
189 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
190 pslash = strrchr(home_dir, '\\'); | |
191 if (pslash != NULL) { | |
192 *pslash = '\0'; /* get rid of \{client|server} */ | |
193 pslash = strrchr(home_dir, '\\'); | |
194 if (pslash != NULL) | |
195 *pslash = '\0'; /* get rid of \bin */ | |
196 } | |
197 } | |
198 | |
6197 | 199 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1, mtInternal); |
0 | 200 if (home_path == NULL) |
201 return; | |
202 strcpy(home_path, home_dir); | |
203 Arguments::set_java_home(home_path); | |
204 | |
6197 | 205 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1, mtInternal); |
0 | 206 if (dll_path == NULL) |
207 return; | |
208 strcpy(dll_path, home_dir); | |
209 strcat(dll_path, bin); | |
210 Arguments::set_dll_dir(dll_path); | |
211 | |
212 if (!set_boot_path('\\', ';')) | |
213 return; | |
214 } | |
215 | |
216 /* library_path */ | |
217 #define EXT_DIR "\\lib\\ext" | |
218 #define BIN_DIR "\\bin" | |
219 #define PACKAGE_DIR "\\Sun\\Java" | |
220 { | |
221 /* Win32 library search order (See the documentation for LoadLibrary): | |
222 * | |
223 * 1. The directory from which application is loaded. | |
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224 * 2. The system wide Java Extensions directory (Java only) |
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225 * 3. System directory (GetSystemDirectory) |
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226 * 4. Windows directory (GetWindowsDirectory) |
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227 * 5. The PATH environment variable |
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228 * 6. The current directory |
0 | 229 */ |
230 | |
231 char *library_path; | |
232 char tmp[MAX_PATH]; | |
233 char *path_str = ::getenv("PATH"); | |
234 | |
235 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
6197 | 236 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10, mtInternal); |
0 | 237 |
238 library_path[0] = '\0'; | |
239 | |
240 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
241 *(strrchr(tmp, '\\')) = '\0'; | |
242 strcat(library_path, tmp); | |
243 | |
244 GetWindowsDirectory(tmp, sizeof(tmp)); | |
245 strcat(library_path, ";"); | |
246 strcat(library_path, tmp); | |
247 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
248 | |
249 GetSystemDirectory(tmp, sizeof(tmp)); | |
250 strcat(library_path, ";"); | |
251 strcat(library_path, tmp); | |
252 | |
253 GetWindowsDirectory(tmp, sizeof(tmp)); | |
254 strcat(library_path, ";"); | |
255 strcat(library_path, tmp); | |
256 | |
257 if (path_str) { | |
258 strcat(library_path, ";"); | |
259 strcat(library_path, path_str); | |
260 } | |
261 | |
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262 strcat(library_path, ";."); |
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263 |
0 | 264 Arguments::set_library_path(library_path); |
6197 | 265 FREE_C_HEAP_ARRAY(char, library_path, mtInternal); |
0 | 266 } |
267 | |
268 /* Default extensions directory */ | |
269 { | |
270 char path[MAX_PATH]; | |
271 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
272 GetWindowsDirectory(path, MAX_PATH); | |
273 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
274 path, PACKAGE_DIR, EXT_DIR); | |
275 Arguments::set_ext_dirs(buf); | |
276 } | |
277 #undef EXT_DIR | |
278 #undef BIN_DIR | |
279 #undef PACKAGE_DIR | |
280 | |
281 /* Default endorsed standards directory. */ | |
282 { | |
283 #define ENDORSED_DIR "\\lib\\endorsed" | |
284 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
6197 | 285 char * buf = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 286 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); |
287 Arguments::set_endorsed_dirs(buf); | |
288 #undef ENDORSED_DIR | |
289 } | |
290 | |
291 #ifndef _WIN64 | |
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292 // set our UnhandledExceptionFilter and save any previous one |
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293 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
0 | 294 #endif |
295 | |
296 // Done | |
297 return; | |
298 } | |
299 | |
300 void os::breakpoint() { | |
301 DebugBreak(); | |
302 } | |
303 | |
304 // Invoked from the BREAKPOINT Macro | |
305 extern "C" void breakpoint() { | |
306 os::breakpoint(); | |
307 } | |
308 | |
6197 | 309 /* |
310 * RtlCaptureStackBackTrace Windows API may not exist prior to Windows XP. | |
311 * So far, this method is only used by Native Memory Tracking, which is | |
312 * only supported on Windows XP or later. | |
313 */ | |
314 address os::get_caller_pc(int n) { | |
315 #ifdef _NMT_NOINLINE_ | |
316 n ++; | |
317 #endif | |
318 address pc; | |
319 if (os::Kernel32Dll::RtlCaptureStackBackTrace(n + 1, 1, (PVOID*)&pc, NULL) == 1) { | |
320 return pc; | |
321 } | |
322 return NULL; | |
323 } | |
324 | |
325 | |
0 | 326 // os::current_stack_base() |
327 // | |
328 // Returns the base of the stack, which is the stack's | |
329 // starting address. This function must be called | |
330 // while running on the stack of the thread being queried. | |
331 | |
332 address os::current_stack_base() { | |
333 MEMORY_BASIC_INFORMATION minfo; | |
334 address stack_bottom; | |
335 size_t stack_size; | |
336 | |
337 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
338 stack_bottom = (address)minfo.AllocationBase; | |
339 stack_size = minfo.RegionSize; | |
340 | |
341 // Add up the sizes of all the regions with the same | |
342 // AllocationBase. | |
343 while( 1 ) | |
344 { | |
345 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
346 if ( stack_bottom == (address)minfo.AllocationBase ) | |
347 stack_size += minfo.RegionSize; | |
348 else | |
349 break; | |
350 } | |
351 | |
352 #ifdef _M_IA64 | |
353 // IA64 has memory and register stacks | |
7994 | 354 // |
355 // This is the stack layout you get on NT/IA64 if you specify 1MB stack limit | |
356 // at thread creation (1MB backing store growing upwards, 1MB memory stack | |
357 // growing downwards, 2MB summed up) | |
358 // | |
359 // ... | |
360 // ------- top of stack (high address) ----- | |
361 // | | |
362 // | 1MB | |
363 // | Backing Store (Register Stack) | |
364 // | | |
365 // | / \ | |
366 // | | | |
367 // | | | |
368 // | | | |
369 // ------------------------ stack base ----- | |
370 // | 1MB | |
371 // | Memory Stack | |
372 // | | |
373 // | | | |
374 // | | | |
375 // | | | |
376 // | \ / | |
377 // | | |
378 // ----- bottom of stack (low address) ----- | |
379 // ... | |
380 | |
0 | 381 stack_size = stack_size / 2; |
382 #endif | |
383 return stack_bottom + stack_size; | |
384 } | |
385 | |
386 size_t os::current_stack_size() { | |
387 size_t sz; | |
388 MEMORY_BASIC_INFORMATION minfo; | |
389 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
390 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
391 return sz; | |
392 } | |
393 | |
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394 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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395 const struct tm* time_struct_ptr = localtime(clock); |
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396 if (time_struct_ptr != NULL) { |
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397 *res = *time_struct_ptr; |
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398 return res; |
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399 } |
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400 return NULL; |
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401 } |
0 | 402 |
403 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
404 | |
405 // Thread start routine for all new Java threads | |
406 static unsigned __stdcall java_start(Thread* thread) { | |
407 // Try to randomize the cache line index of hot stack frames. | |
408 // This helps when threads of the same stack traces evict each other's | |
409 // cache lines. The threads can be either from the same JVM instance, or | |
410 // from different JVM instances. The benefit is especially true for | |
411 // processors with hyperthreading technology. | |
412 static int counter = 0; | |
413 int pid = os::current_process_id(); | |
414 _alloca(((pid ^ counter++) & 7) * 128); | |
415 | |
416 OSThread* osthr = thread->osthread(); | |
417 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
418 | |
419 if (UseNUMA) { | |
420 int lgrp_id = os::numa_get_group_id(); | |
421 if (lgrp_id != -1) { | |
422 thread->set_lgrp_id(lgrp_id); | |
423 } | |
424 } | |
425 | |
426 | |
6916 | 427 // Install a win32 structured exception handler around every thread created |
428 // by VM, so VM can genrate error dump when an exception occurred in non- | |
429 // Java thread (e.g. VM thread). | |
430 __try { | |
431 thread->run(); | |
432 } __except(topLevelExceptionFilter( | |
433 (_EXCEPTION_POINTERS*)_exception_info())) { | |
434 // Nothing to do. | |
0 | 435 } |
436 | |
437 // One less thread is executing | |
438 // When the VMThread gets here, the main thread may have already exited | |
439 // which frees the CodeHeap containing the Atomic::add code | |
440 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
441 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
442 } | |
443 | |
444 return 0; | |
445 } | |
446 | |
447 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
448 // Allocate the OSThread object | |
449 OSThread* osthread = new OSThread(NULL, NULL); | |
450 if (osthread == NULL) return NULL; | |
451 | |
452 // Initialize support for Java interrupts | |
453 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
454 if (interrupt_event == NULL) { | |
455 delete osthread; | |
456 return NULL; | |
457 } | |
458 osthread->set_interrupt_event(interrupt_event); | |
459 | |
460 // Store info on the Win32 thread into the OSThread | |
461 osthread->set_thread_handle(thread_handle); | |
462 osthread->set_thread_id(thread_id); | |
463 | |
464 if (UseNUMA) { | |
465 int lgrp_id = os::numa_get_group_id(); | |
466 if (lgrp_id != -1) { | |
467 thread->set_lgrp_id(lgrp_id); | |
468 } | |
469 } | |
470 | |
471 // Initial thread state is INITIALIZED, not SUSPENDED | |
472 osthread->set_state(INITIALIZED); | |
473 | |
474 return osthread; | |
475 } | |
476 | |
477 | |
478 bool os::create_attached_thread(JavaThread* thread) { | |
479 #ifdef ASSERT | |
480 thread->verify_not_published(); | |
481 #endif | |
482 HANDLE thread_h; | |
483 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
484 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
485 fatal("DuplicateHandle failed\n"); | |
486 } | |
487 OSThread* osthread = create_os_thread(thread, thread_h, | |
488 (int)current_thread_id()); | |
489 if (osthread == NULL) { | |
490 return false; | |
491 } | |
492 | |
493 // Initial thread state is RUNNABLE | |
494 osthread->set_state(RUNNABLE); | |
495 | |
496 thread->set_osthread(osthread); | |
497 return true; | |
498 } | |
499 | |
500 bool os::create_main_thread(JavaThread* thread) { | |
501 #ifdef ASSERT | |
502 thread->verify_not_published(); | |
503 #endif | |
504 if (_starting_thread == NULL) { | |
505 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
506 if (_starting_thread == NULL) { | |
507 return false; | |
508 } | |
509 } | |
510 | |
511 // The primordial thread is runnable from the start) | |
512 _starting_thread->set_state(RUNNABLE); | |
513 | |
514 thread->set_osthread(_starting_thread); | |
515 return true; | |
516 } | |
517 | |
518 // Allocate and initialize a new OSThread | |
519 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
520 unsigned thread_id; | |
521 | |
522 // Allocate the OSThread object | |
523 OSThread* osthread = new OSThread(NULL, NULL); | |
524 if (osthread == NULL) { | |
525 return false; | |
526 } | |
527 | |
528 // Initialize support for Java interrupts | |
529 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
530 if (interrupt_event == NULL) { | |
531 delete osthread; | |
532 return NULL; | |
533 } | |
534 osthread->set_interrupt_event(interrupt_event); | |
535 osthread->set_interrupted(false); | |
536 | |
537 thread->set_osthread(osthread); | |
538 | |
539 if (stack_size == 0) { | |
540 switch (thr_type) { | |
541 case os::java_thread: | |
542 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
543 if (JavaThread::stack_size_at_create() > 0) | |
544 stack_size = JavaThread::stack_size_at_create(); | |
545 break; | |
546 case os::compiler_thread: | |
547 if (CompilerThreadStackSize > 0) { | |
548 stack_size = (size_t)(CompilerThreadStackSize * K); | |
549 break; | |
550 } // else fall through: | |
551 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
552 case os::vm_thread: | |
553 case os::pgc_thread: | |
554 case os::cgc_thread: | |
555 case os::watcher_thread: | |
556 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
557 break; | |
558 } | |
559 } | |
560 | |
561 // Create the Win32 thread | |
562 // | |
563 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
564 // does not specify stack size. Instead, it specifies the size of | |
565 // initially committed space. The stack size is determined by | |
566 // PE header in the executable. If the committed "stack_size" is larger | |
567 // than default value in the PE header, the stack is rounded up to the | |
568 // nearest multiple of 1MB. For example if the launcher has default | |
569 // stack size of 320k, specifying any size less than 320k does not | |
570 // affect the actual stack size at all, it only affects the initial | |
571 // commitment. On the other hand, specifying 'stack_size' larger than | |
572 // default value may cause significant increase in memory usage, because | |
573 // not only the stack space will be rounded up to MB, but also the | |
574 // entire space is committed upfront. | |
575 // | |
576 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
577 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
578 // are not supposed to call CreateThread() directly according to MSDN | |
579 // document because JVM uses C runtime library. The good news is that the | |
580 // flag appears to work with _beginthredex() as well. | |
581 | |
582 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
583 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
584 #endif | |
585 | |
586 HANDLE thread_handle = | |
587 (HANDLE)_beginthreadex(NULL, | |
588 (unsigned)stack_size, | |
589 (unsigned (__stdcall *)(void*)) java_start, | |
590 thread, | |
591 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
592 &thread_id); | |
593 if (thread_handle == NULL) { | |
594 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
595 // without the flag. | |
596 thread_handle = | |
597 (HANDLE)_beginthreadex(NULL, | |
598 (unsigned)stack_size, | |
599 (unsigned (__stdcall *)(void*)) java_start, | |
600 thread, | |
601 CREATE_SUSPENDED, | |
602 &thread_id); | |
603 } | |
604 if (thread_handle == NULL) { | |
605 // Need to clean up stuff we've allocated so far | |
606 CloseHandle(osthread->interrupt_event()); | |
607 thread->set_osthread(NULL); | |
608 delete osthread; | |
609 return NULL; | |
610 } | |
611 | |
612 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
613 | |
614 // Store info on the Win32 thread into the OSThread | |
615 osthread->set_thread_handle(thread_handle); | |
616 osthread->set_thread_id(thread_id); | |
617 | |
618 // Initial thread state is INITIALIZED, not SUSPENDED | |
619 osthread->set_state(INITIALIZED); | |
620 | |
621 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
622 return true; | |
623 } | |
624 | |
625 | |
626 // Free Win32 resources related to the OSThread | |
627 void os::free_thread(OSThread* osthread) { | |
628 assert(osthread != NULL, "osthread not set"); | |
629 CloseHandle(osthread->thread_handle()); | |
630 CloseHandle(osthread->interrupt_event()); | |
631 delete osthread; | |
632 } | |
633 | |
634 | |
635 static int has_performance_count = 0; | |
636 static jlong first_filetime; | |
637 static jlong initial_performance_count; | |
638 static jlong performance_frequency; | |
639 | |
640 | |
641 jlong as_long(LARGE_INTEGER x) { | |
642 jlong result = 0; // initialization to avoid warning | |
643 set_high(&result, x.HighPart); | |
644 set_low(&result, x.LowPart); | |
645 return result; | |
646 } | |
647 | |
648 | |
649 jlong os::elapsed_counter() { | |
650 LARGE_INTEGER count; | |
651 if (has_performance_count) { | |
652 QueryPerformanceCounter(&count); | |
653 return as_long(count) - initial_performance_count; | |
654 } else { | |
655 FILETIME wt; | |
656 GetSystemTimeAsFileTime(&wt); | |
657 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
658 } | |
659 } | |
660 | |
661 | |
662 jlong os::elapsed_frequency() { | |
663 if (has_performance_count) { | |
664 return performance_frequency; | |
665 } else { | |
666 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
667 return 10000000; | |
668 } | |
669 } | |
670 | |
671 | |
672 julong os::available_memory() { | |
673 return win32::available_memory(); | |
674 } | |
675 | |
676 julong os::win32::available_memory() { | |
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677 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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678 // value if total memory is larger than 4GB |
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679 MEMORYSTATUSEX ms; |
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680 ms.dwLength = sizeof(ms); |
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681 GlobalMemoryStatusEx(&ms); |
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682 |
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683 return (julong)ms.ullAvailPhys; |
0 | 684 } |
685 | |
686 julong os::physical_memory() { | |
687 return win32::physical_memory(); | |
688 } | |
689 | |
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690 bool os::has_allocatable_memory_limit(julong* limit) { |
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691 MEMORYSTATUSEX ms; |
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692 ms.dwLength = sizeof(ms); |
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693 GlobalMemoryStatusEx(&ms); |
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694 #ifdef _LP64 |
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695 *limit = (julong)ms.ullAvailVirtual; |
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696 return true; |
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697 #else |
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698 // Limit to 1400m because of the 2gb address space wall |
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699 *limit = MIN2((julong)1400*M, (julong)ms.ullAvailVirtual); |
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700 return true; |
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701 #endif |
0 | 702 } |
703 | |
704 // VC6 lacks DWORD_PTR | |
705 #if _MSC_VER < 1300 | |
706 typedef UINT_PTR DWORD_PTR; | |
707 #endif | |
708 | |
709 int os::active_processor_count() { | |
710 DWORD_PTR lpProcessAffinityMask = 0; | |
711 DWORD_PTR lpSystemAffinityMask = 0; | |
712 int proc_count = processor_count(); | |
713 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
714 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
715 // Nof active processors is number of bits in process affinity mask | |
716 int bitcount = 0; | |
717 while (lpProcessAffinityMask != 0) { | |
718 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
719 bitcount++; | |
720 } | |
721 return bitcount; | |
722 } else { | |
723 return proc_count; | |
724 } | |
725 } | |
726 | |
4006 | 727 void os::set_native_thread_name(const char *name) { |
728 // Not yet implemented. | |
729 return; | |
730 } | |
731 | |
0 | 732 bool os::distribute_processes(uint length, uint* distribution) { |
733 // Not yet implemented. | |
734 return false; | |
735 } | |
736 | |
737 bool os::bind_to_processor(uint processor_id) { | |
738 // Not yet implemented. | |
739 return false; | |
740 } | |
741 | |
742 static void initialize_performance_counter() { | |
743 LARGE_INTEGER count; | |
744 if (QueryPerformanceFrequency(&count)) { | |
745 has_performance_count = 1; | |
746 performance_frequency = as_long(count); | |
747 QueryPerformanceCounter(&count); | |
748 initial_performance_count = as_long(count); | |
749 } else { | |
750 has_performance_count = 0; | |
751 FILETIME wt; | |
752 GetSystemTimeAsFileTime(&wt); | |
753 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
754 } | |
755 } | |
756 | |
757 | |
758 double os::elapsedTime() { | |
759 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
760 } | |
761 | |
762 | |
763 // Windows format: | |
764 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
765 // Java format: | |
766 // Java standards require the number of milliseconds since 1/1/1970 | |
767 | |
768 // Constant offset - calculated using offset() | |
769 static jlong _offset = 116444736000000000; | |
770 // Fake time counter for reproducible results when debugging | |
771 static jlong fake_time = 0; | |
772 | |
773 #ifdef ASSERT | |
774 // Just to be safe, recalculate the offset in debug mode | |
775 static jlong _calculated_offset = 0; | |
776 static int _has_calculated_offset = 0; | |
777 | |
778 jlong offset() { | |
779 if (_has_calculated_offset) return _calculated_offset; | |
780 SYSTEMTIME java_origin; | |
781 java_origin.wYear = 1970; | |
782 java_origin.wMonth = 1; | |
783 java_origin.wDayOfWeek = 0; // ignored | |
784 java_origin.wDay = 1; | |
785 java_origin.wHour = 0; | |
786 java_origin.wMinute = 0; | |
787 java_origin.wSecond = 0; | |
788 java_origin.wMilliseconds = 0; | |
789 FILETIME jot; | |
790 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
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791 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
0 | 792 } |
793 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
794 _has_calculated_offset = 1; | |
795 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
796 return _calculated_offset; | |
797 } | |
798 #else | |
799 jlong offset() { | |
800 return _offset; | |
801 } | |
802 #endif | |
803 | |
804 jlong windows_to_java_time(FILETIME wt) { | |
805 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
806 return (a - offset()) / 10000; | |
807 } | |
808 | |
809 FILETIME java_to_windows_time(jlong l) { | |
810 jlong a = (l * 10000) + offset(); | |
811 FILETIME result; | |
812 result.dwHighDateTime = high(a); | |
813 result.dwLowDateTime = low(a); | |
814 return result; | |
815 } | |
816 | |
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817 bool os::supports_vtime() { return true; } |
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818 bool os::enable_vtime() { return false; } |
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819 bool os::vtime_enabled() { return false; } |
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820 |
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821 double os::elapsedVTime() { |
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822 FILETIME created; |
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823 FILETIME exited; |
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824 FILETIME kernel; |
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825 FILETIME user; |
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826 if (GetThreadTimes(GetCurrentThread(), &created, &exited, &kernel, &user) != 0) { |
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827 // the resolution of windows_to_java_time() should be sufficient (ms) |
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828 return (double) (windows_to_java_time(kernel) + windows_to_java_time(user)) / MILLIUNITS; |
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829 } else { |
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830 return elapsedTime(); |
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831 } |
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832 } |
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833 |
0 | 834 jlong os::javaTimeMillis() { |
835 if (UseFakeTimers) { | |
836 return fake_time++; | |
837 } else { | |
61 | 838 FILETIME wt; |
839 GetSystemTimeAsFileTime(&wt); | |
840 return windows_to_java_time(wt); | |
0 | 841 } |
842 } | |
843 | |
844 jlong os::javaTimeNanos() { | |
845 if (!has_performance_count) { | |
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846 return javaTimeMillis() * NANOSECS_PER_MILLISEC; // the best we can do. |
0 | 847 } else { |
848 LARGE_INTEGER current_count; | |
849 QueryPerformanceCounter(¤t_count); | |
850 double current = as_long(current_count); | |
851 double freq = performance_frequency; | |
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852 jlong time = (jlong)((current/freq) * NANOSECS_PER_SEC); |
0 | 853 return time; |
854 } | |
855 } | |
856 | |
857 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
858 if (!has_performance_count) { | |
859 // javaTimeMillis() doesn't have much percision, | |
860 // but it is not going to wrap -- so all 64 bits | |
861 info_ptr->max_value = ALL_64_BITS; | |
862 | |
863 // this is a wall clock timer, so may skip | |
864 info_ptr->may_skip_backward = true; | |
865 info_ptr->may_skip_forward = true; | |
866 } else { | |
867 jlong freq = performance_frequency; | |
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868 if (freq < NANOSECS_PER_SEC) { |
0 | 869 // the performance counter is 64 bits and we will |
870 // be multiplying it -- so no wrap in 64 bits | |
871 info_ptr->max_value = ALL_64_BITS; | |
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872 } else if (freq > NANOSECS_PER_SEC) { |
0 | 873 // use the max value the counter can reach to |
874 // determine the max value which could be returned | |
875 julong max_counter = (julong)ALL_64_BITS; | |
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876 info_ptr->max_value = (jlong)(max_counter / (freq / NANOSECS_PER_SEC)); |
0 | 877 } else { |
878 // the performance counter is 64 bits and we will | |
879 // be using it directly -- so no wrap in 64 bits | |
880 info_ptr->max_value = ALL_64_BITS; | |
881 } | |
882 | |
883 // using a counter, so no skipping | |
884 info_ptr->may_skip_backward = false; | |
885 info_ptr->may_skip_forward = false; | |
886 } | |
887 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
888 } | |
889 | |
890 char* os::local_time_string(char *buf, size_t buflen) { | |
891 SYSTEMTIME st; | |
892 GetLocalTime(&st); | |
893 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
894 st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); | |
895 return buf; | |
896 } | |
897 | |
898 bool os::getTimesSecs(double* process_real_time, | |
899 double* process_user_time, | |
900 double* process_system_time) { | |
901 HANDLE h_process = GetCurrentProcess(); | |
902 FILETIME create_time, exit_time, kernel_time, user_time; | |
903 BOOL result = GetProcessTimes(h_process, | |
904 &create_time, | |
905 &exit_time, | |
906 &kernel_time, | |
907 &user_time); | |
908 if (result != 0) { | |
909 FILETIME wt; | |
910 GetSystemTimeAsFileTime(&wt); | |
911 jlong rtc_millis = windows_to_java_time(wt); | |
912 jlong user_millis = windows_to_java_time(user_time); | |
913 jlong system_millis = windows_to_java_time(kernel_time); | |
914 *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS); | |
915 *process_user_time = ((double) user_millis) / ((double) MILLIUNITS); | |
916 *process_system_time = ((double) system_millis) / ((double) MILLIUNITS); | |
917 return true; | |
918 } else { | |
919 return false; | |
920 } | |
921 } | |
922 | |
923 void os::shutdown() { | |
924 | |
925 // allow PerfMemory to attempt cleanup of any persistent resources | |
926 perfMemory_exit(); | |
927 | |
928 // flush buffered output, finish log files | |
929 ostream_abort(); | |
930 | |
931 // Check for abort hook | |
932 abort_hook_t abort_hook = Arguments::abort_hook(); | |
933 if (abort_hook != NULL) { | |
934 abort_hook(); | |
935 } | |
936 } | |
937 | |
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938 |
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939 static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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940 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
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941 |
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942 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { |
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943 HINSTANCE dbghelp; |
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944 EXCEPTION_POINTERS ep; |
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945 MINIDUMP_EXCEPTION_INFORMATION mei; |
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946 MINIDUMP_EXCEPTION_INFORMATION* pmei; |
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947 |
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948 HANDLE hProcess = GetCurrentProcess(); |
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949 DWORD processId = GetCurrentProcessId(); |
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950 HANDLE dumpFile; |
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951 MINIDUMP_TYPE dumpType; |
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952 static const char* cwd; |
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953 |
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954 // Default is to always create dump for debug builds, on product builds only dump on server versions of Windows. |
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955 #ifndef ASSERT |
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956 // If running on a client version of Windows and user has not explicitly enabled dumping |
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957 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) { |
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958 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false); |
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959 return; |
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960 // If running on a server version of Windows and user has explictly disabled dumping |
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961 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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962 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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963 return; |
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964 } |
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965 #else |
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966 if (!FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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967 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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968 return; |
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969 } |
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970 #endif |
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971 |
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972 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0); |
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973 |
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974 if (dbghelp == NULL) { |
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975 VMError::report_coredump_status("Failed to load dbghelp.dll", false); |
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976 return; |
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977 } |
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978 |
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979 _MiniDumpWriteDump = CAST_TO_FN_PTR( |
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980 BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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981 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION), |
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982 GetProcAddress(dbghelp, "MiniDumpWriteDump")); |
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983 |
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984 if (_MiniDumpWriteDump == NULL) { |
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985 VMError::report_coredump_status("Failed to find MiniDumpWriteDump() in module dbghelp.dll", false); |
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986 return; |
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987 } |
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988 |
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989 dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
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990 |
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991 // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
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992 // API_VERSION_NUMBER 11 or higher contains the ones we want though |
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993 #if API_VERSION_NUMBER >= 11 |
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994 dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
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995 MiniDumpWithUnloadedModules); |
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996 #endif |
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997 |
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998 cwd = get_current_directory(NULL, 0); |
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999 jio_snprintf(buffer, bufferSize, "%s\\hs_err_pid%u.mdmp",cwd, current_process_id()); |
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1000 dumpFile = CreateFile(buffer, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
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1001 |
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1002 if (dumpFile == INVALID_HANDLE_VALUE) { |
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1003 VMError::report_coredump_status("Failed to create file for dumping", false); |
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1004 return; |
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1005 } |
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1006 if (exceptionRecord != NULL && contextRecord != NULL) { |
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1007 ep.ContextRecord = (PCONTEXT) contextRecord; |
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1008 ep.ExceptionRecord = (PEXCEPTION_RECORD) exceptionRecord; |
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1009 |
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1010 mei.ThreadId = GetCurrentThreadId(); |
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1011 mei.ExceptionPointers = &ep; |
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1012 pmei = &mei; |
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1013 } else { |
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1014 pmei = NULL; |
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1015 } |
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1016 |
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1017 |
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1018 // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
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1019 // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
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1020 if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == false && |
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1021 _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == false) { |
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1022 DWORD error = GetLastError(); |
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1023 LPTSTR msgbuf = NULL; |
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1024 |
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1025 if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | |
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1026 FORMAT_MESSAGE_FROM_SYSTEM | |
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1027 FORMAT_MESSAGE_IGNORE_INSERTS, |
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1028 NULL, error, 0, (LPTSTR)&msgbuf, 0, NULL) != 0) { |
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1029 |
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1030 jio_snprintf(buffer, bufferSize, "Call to MiniDumpWriteDump() failed (Error 0x%x: %s)", error, msgbuf); |
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1031 LocalFree(msgbuf); |
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1032 } else { |
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1033 // Call to FormatMessage failed, just include the result from GetLastError |
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1034 jio_snprintf(buffer, bufferSize, "Call to MiniDumpWriteDump() failed (Error 0x%x)", error); |
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1035 } |
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1036 VMError::report_coredump_status(buffer, false); |
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1037 } else { |
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1038 VMError::report_coredump_status(buffer, true); |
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1039 } |
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1040 |
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1041 CloseHandle(dumpFile); |
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1042 } |
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1043 |
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1044 |
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1045 |
0 | 1046 void os::abort(bool dump_core) |
1047 { | |
1048 os::shutdown(); | |
1049 // no core dump on Windows | |
1050 ::exit(1); | |
1051 } | |
1052 | |
1053 // Die immediately, no exit hook, no abort hook, no cleanup. | |
1054 void os::die() { | |
1055 _exit(-1); | |
1056 } | |
1057 | |
1058 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
1059 // * dirent_md.c 1.15 00/02/02 | |
1060 // | |
1061 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
1062 | |
1063 /* Caller must have already run dirname through JVM_NativePath, which removes | |
1064 duplicate slashes and converts all instances of '/' into '\\'. */ | |
1065 | |
1066 DIR * | |
1067 os::opendir(const char *dirname) | |
1068 { | |
1069 assert(dirname != NULL, "just checking"); // hotspot change | |
6197 | 1070 DIR *dirp = (DIR *)malloc(sizeof(DIR), mtInternal); |
0 | 1071 DWORD fattr; // hotspot change |
1072 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
1073 | |
1074 if (dirp == 0) { | |
1075 errno = ENOMEM; | |
1076 return 0; | |
1077 } | |
1078 | |
1079 /* | |
1080 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
1081 * as a directory in FindFirstFile(). We detect this case here and | |
1082 * prepend the current drive name. | |
1083 */ | |
1084 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
1085 alt_dirname[0] = _getdrive() + 'A' - 1; | |
1086 alt_dirname[1] = ':'; | |
1087 alt_dirname[2] = '\\'; | |
1088 alt_dirname[3] = '\0'; | |
1089 dirname = alt_dirname; | |
1090 } | |
1091 | |
6197 | 1092 dirp->path = (char *)malloc(strlen(dirname) + 5, mtInternal); |
0 | 1093 if (dirp->path == 0) { |
6197 | 1094 free(dirp, mtInternal); |
0 | 1095 errno = ENOMEM; |
1096 return 0; | |
1097 } | |
1098 strcpy(dirp->path, dirname); | |
1099 | |
1100 fattr = GetFileAttributes(dirp->path); | |
1101 if (fattr == 0xffffffff) { | |
6197 | 1102 free(dirp->path, mtInternal); |
1103 free(dirp, mtInternal); | |
0 | 1104 errno = ENOENT; |
1105 return 0; | |
1106 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
6197 | 1107 free(dirp->path, mtInternal); |
1108 free(dirp, mtInternal); | |
0 | 1109 errno = ENOTDIR; |
1110 return 0; | |
1111 } | |
1112 | |
1113 /* Append "*.*", or possibly "\\*.*", to path */ | |
1114 if (dirp->path[1] == ':' | |
1115 && (dirp->path[2] == '\0' | |
1116 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
1117 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
1118 strcat(dirp->path, "*.*"); | |
1119 } else { | |
1120 strcat(dirp->path, "\\*.*"); | |
1121 } | |
1122 | |
1123 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
1124 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
1125 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
6197 | 1126 free(dirp->path, mtInternal); |
1127 free(dirp, mtInternal); | |
0 | 1128 errno = EACCES; |
1129 return 0; | |
1130 } | |
1131 } | |
1132 return dirp; | |
1133 } | |
1134 | |
1135 /* parameter dbuf unused on Windows */ | |
1136 | |
1137 struct dirent * | |
1138 os::readdir(DIR *dirp, dirent *dbuf) | |
1139 { | |
1140 assert(dirp != NULL, "just checking"); // hotspot change | |
1141 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
1142 return 0; | |
1143 } | |
1144 | |
1145 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
1146 | |
1147 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
1148 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
1149 errno = EBADF; | |
1150 return 0; | |
1151 } | |
1152 FindClose(dirp->handle); | |
1153 dirp->handle = INVALID_HANDLE_VALUE; | |
1154 } | |
1155 | |
1156 return &dirp->dirent; | |
1157 } | |
1158 | |
1159 int | |
1160 os::closedir(DIR *dirp) | |
1161 { | |
1162 assert(dirp != NULL, "just checking"); // hotspot change | |
1163 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
1164 if (!FindClose(dirp->handle)) { | |
1165 errno = EBADF; | |
1166 return -1; | |
1167 } | |
1168 dirp->handle = INVALID_HANDLE_VALUE; | |
1169 } | |
6197 | 1170 free(dirp->path, mtInternal); |
1171 free(dirp, mtInternal); | |
0 | 1172 return 0; |
1173 } | |
1174 | |
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1175 // This must be hard coded because it's the system's temporary |
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1176 // directory not the java application's temp directory, ala java.io.tmpdir. |
1353
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1177 const char* os::get_temp_directory() { |
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1178 static char path_buf[MAX_PATH]; |
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1179 if (GetTempPath(MAX_PATH, path_buf)>0) |
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1180 return path_buf; |
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1181 else{ |
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1182 path_buf[0]='\0'; |
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1183 return path_buf; |
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|
1184 } |
0 | 1185 } |
1186 | |
691 | 1187 static bool file_exists(const char* filename) { |
1188 if (filename == NULL || strlen(filename) == 0) { | |
1189 return false; | |
1190 } | |
1191 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
1192 } | |
1193 | |
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|
1194 bool os::dll_build_name(char *buffer, size_t buflen, |
691 | 1195 const char* pname, const char* fname) { |
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|
1196 bool retval = false; |
691 | 1197 const size_t pnamelen = pname ? strlen(pname) : 0; |
1198 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
1199 | |
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|
1200 // Return error on buffer overflow. |
691 | 1201 if (pnamelen + strlen(fname) + 10 > buflen) { |
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|
1202 return retval; |
691 | 1203 } |
1204 | |
1205 if (pnamelen == 0) { | |
1206 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
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|
1207 retval = true; |
691 | 1208 } else if (c == ':' || c == '\\') { |
1209 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
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|
1210 retval = true; |
691 | 1211 } else if (strchr(pname, *os::path_separator()) != NULL) { |
1212 int n; | |
1213 char** pelements = split_path(pname, &n); | |
9059
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|
1214 if (pelements == NULL) { |
9062 | 1215 return false; |
9059
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|
1216 } |
691 | 1217 for (int i = 0 ; i < n ; i++) { |
1218 char* path = pelements[i]; | |
1219 // Really shouldn't be NULL, but check can't hurt | |
1220 size_t plen = (path == NULL) ? 0 : strlen(path); | |
1221 if (plen == 0) { | |
1222 continue; // skip the empty path values | |
1223 } | |
1224 const char lastchar = path[plen - 1]; | |
1225 if (lastchar == ':' || lastchar == '\\') { | |
1226 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
1227 } else { | |
1228 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
1229 } | |
1230 if (file_exists(buffer)) { | |
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|
1231 retval = true; |
691 | 1232 break; |
1233 } | |
242 | 1234 } |
691 | 1235 // release the storage |
1236 for (int i = 0 ; i < n ; i++) { | |
1237 if (pelements[i] != NULL) { | |
6197 | 1238 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
691 | 1239 } |
242 | 1240 } |
691 | 1241 if (pelements != NULL) { |
6197 | 1242 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
691 | 1243 } |
1244 } else { | |
1245 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
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|
1246 retval = true; |
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|
1247 } |
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|
1248 return retval; |
242 | 1249 } |
1250 | |
0 | 1251 // Needs to be in os specific directory because windows requires another |
1252 // header file <direct.h> | |
10195
e12c9b3740db
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|
1253 const char* os::get_current_directory(char *buf, size_t buflen) { |
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|
1254 int n = static_cast<int>(buflen); |
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|
1255 if (buflen > INT_MAX) n = INT_MAX; |
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|
1256 return _getcwd(buf, n); |
0 | 1257 } |
1258 | |
1259 //----------------------------------------------------------- | |
1260 // Helper functions for fatal error handler | |
1261 #ifdef _WIN64 | |
1262 // Helper routine which returns true if address in | |
1263 // within the NTDLL address space. | |
1264 // | |
1265 static bool _addr_in_ntdll( address addr ) | |
1266 { | |
1267 HMODULE hmod; | |
1268 MODULEINFO minfo; | |
1269 | |
1270 hmod = GetModuleHandle("NTDLL.DLL"); | |
1271 if ( hmod == NULL ) return false; | |
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|
1272 if ( !os::PSApiDll::GetModuleInformation( GetCurrentProcess(), hmod, |
0 | 1273 &minfo, sizeof(MODULEINFO)) ) |
1274 return false; | |
1275 | |
1276 if ( (addr >= minfo.lpBaseOfDll) && | |
1277 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
1278 return true; | |
1279 else | |
1280 return false; | |
1281 } | |
1282 #endif | |
1283 | |
1284 | |
1285 // Enumerate all modules for a given process ID | |
1286 // | |
1287 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
1288 // different API for doing this. We use PSAPI.DLL on NT based | |
1289 // Windows and ToolHelp on 95/98/Me. | |
1290 | |
1291 // Callback function that is called by enumerate_modules() on | |
1292 // every DLL module. | |
1293 // Input parameters: | |
1294 // int pid, | |
1295 // char* module_file_name, | |
1296 // address module_base_addr, | |
1297 // unsigned module_size, | |
1298 // void* param | |
1299 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
1300 | |
1301 // enumerate_modules for Windows NT, using PSAPI | |
1302 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
1303 { | |
1304 HANDLE hProcess ; | |
1305 | |
1306 # define MAX_NUM_MODULES 128 | |
1307 HMODULE modules[MAX_NUM_MODULES]; | |
1308 static char filename[ MAX_PATH ]; | |
1309 int result = 0; | |
1310 | |
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1311 if (!os::PSApiDll::PSApiAvailable()) { |
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1312 return 0; |
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|
1313 } |
0 | 1314 |
1315 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
1316 FALSE, pid ) ; | |
1317 if (hProcess == NULL) return 0; | |
1318 | |
1319 DWORD size_needed; | |
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1320 if (!os::PSApiDll::EnumProcessModules(hProcess, modules, |
0 | 1321 sizeof(modules), &size_needed)) { |
1322 CloseHandle( hProcess ); | |
1323 return 0; | |
1324 } | |
1325 | |
1326 // number of modules that are currently loaded | |
1327 int num_modules = size_needed / sizeof(HMODULE); | |
1328 | |
1329 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
1330 // Get Full pathname: | |
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|
1331 if(!os::PSApiDll::GetModuleFileNameEx(hProcess, modules[i], |
0 | 1332 filename, sizeof(filename))) { |
1333 filename[0] = '\0'; | |
1334 } | |
1335 | |
1336 MODULEINFO modinfo; | |
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|
1337 if (!os::PSApiDll::GetModuleInformation(hProcess, modules[i], |
0 | 1338 &modinfo, sizeof(modinfo))) { |
1339 modinfo.lpBaseOfDll = NULL; | |
1340 modinfo.SizeOfImage = 0; | |
1341 } | |
1342 | |
1343 // Invoke callback function | |
1344 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
1345 modinfo.SizeOfImage, param); | |
1346 if (result) break; | |
1347 } | |
1348 | |
1349 CloseHandle( hProcess ) ; | |
1350 return result; | |
1351 } | |
1352 | |
1353 | |
1354 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
1355 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
1356 { | |
1357 HANDLE hSnapShot ; | |
1358 static MODULEENTRY32 modentry ; | |
1359 int result = 0; | |
1360 | |
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1361 if (!os::Kernel32Dll::HelpToolsAvailable()) { |
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|
1362 return 0; |
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|
1363 } |
0 | 1364 |
1365 // Get a handle to a Toolhelp snapshot of the system | |
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|
1366 hSnapShot = os::Kernel32Dll::CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; |
0 | 1367 if( hSnapShot == INVALID_HANDLE_VALUE ) { |
1368 return FALSE ; | |
1369 } | |
1370 | |
1371 // iterate through all modules | |
1372 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1373 bool not_done = os::Kernel32Dll::Module32First( hSnapShot, &modentry ) != 0; |
0 | 1374 |
1375 while( not_done ) { | |
1376 // invoke the callback | |
1377 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
1378 modentry.modBaseSize, param); | |
1379 if (result) break; | |
1380 | |
1381 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1382 not_done = os::Kernel32Dll::Module32Next( hSnapShot, &modentry ) != 0; |
0 | 1383 } |
1384 | |
1385 CloseHandle(hSnapShot); | |
1386 return result; | |
1387 } | |
1388 | |
1389 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
1390 { | |
1391 // Get current process ID if caller doesn't provide it. | |
1392 if (!pid) pid = os::current_process_id(); | |
1393 | |
1394 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
1395 else return _enumerate_modules_windows(pid, func, param); | |
1396 } | |
1397 | |
1398 struct _modinfo { | |
1399 address addr; | |
1400 char* full_path; // point to a char buffer | |
1401 int buflen; // size of the buffer | |
1402 address base_addr; | |
1403 }; | |
1404 | |
1405 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
1406 unsigned size, void * param) { | |
1407 struct _modinfo *pmod = (struct _modinfo *)param; | |
1408 if (!pmod) return -1; | |
1409 | |
1410 if (base_addr <= pmod->addr && | |
1411 base_addr+size > pmod->addr) { | |
1412 // if a buffer is provided, copy path name to the buffer | |
1413 if (pmod->full_path) { | |
1414 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
1415 } | |
1416 pmod->base_addr = base_addr; | |
1417 return 1; | |
1418 } | |
1419 return 0; | |
1420 } | |
1421 | |
1422 bool os::dll_address_to_library_name(address addr, char* buf, | |
1423 int buflen, int* offset) { | |
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1424 // buf is not optional, but offset is optional |
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1425 assert(buf != NULL, "sanity check"); |
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1426 |
0 | 1427 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always |
1428 // return the full path to the DLL file, sometimes it returns path | |
1429 // to the corresponding PDB file (debug info); sometimes it only | |
1430 // returns partial path, which makes life painful. | |
1431 | |
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1432 struct _modinfo mi; |
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1433 mi.addr = addr; |
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1434 mi.full_path = buf; |
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1435 mi.buflen = buflen; |
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1436 int pid = os::current_process_id(); |
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1437 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { |
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1438 // buf already contains path name |
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1439 if (offset) *offset = addr - mi.base_addr; |
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1440 return true; |
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1441 } |
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1442 |
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1443 buf[0] = '\0'; |
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1444 if (offset) *offset = -1; |
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1445 return false; |
0 | 1446 } |
1447 | |
1448 bool os::dll_address_to_function_name(address addr, char *buf, | |
1449 int buflen, int *offset) { | |
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changeset
|
1450 // buf is not optional, but offset is optional |
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1451 assert(buf != NULL, "sanity check"); |
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1452 |
4803 | 1453 if (Decoder::decode(addr, buf, buflen, offset)) { |
2022
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
1972
diff
changeset
|
1454 return true; |
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
1972
diff
changeset
|
1455 } |
2d4762ec74af
7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents:
1972
diff
changeset
|
1456 if (offset != NULL) *offset = -1; |
11092
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
10986
diff
changeset
|
1457 buf[0] = '\0'; |
0 | 1458 return false; |
1459 } | |
1460 | |
1461 // save the start and end address of jvm.dll into param[0] and param[1] | |
1462 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
1463 unsigned size, void * param) { | |
1464 if (!param) return -1; | |
1465 | |
1466 if (base_addr <= (address)_locate_jvm_dll && | |
1467 base_addr+size > (address)_locate_jvm_dll) { | |
1468 ((address*)param)[0] = base_addr; | |
1469 ((address*)param)[1] = base_addr + size; | |
1470 return 1; | |
1471 } | |
1472 return 0; | |
1473 } | |
1474 | |
1475 address vm_lib_location[2]; // start and end address of jvm.dll | |
1476 | |
1477 // check if addr is inside jvm.dll | |
1478 bool os::address_is_in_vm(address addr) { | |
1479 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
1480 int pid = os::current_process_id(); | |
1481 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
1482 assert(false, "Can't find jvm module."); | |
1483 return false; | |
1484 } | |
1485 } | |
1486 | |
1487 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
1488 } | |
1489 | |
1490 // print module info; param is outputStream* | |
1491 static int _print_module(int pid, char* fname, address base, | |
1492 unsigned size, void* param) { | |
1493 if (!param) return -1; | |
1494 | |
1495 outputStream* st = (outputStream*)param; | |
1496 | |
1497 address end_addr = base + size; | |
1498 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
1499 return 0; | |
1500 } | |
1501 | |
1502 // Loads .dll/.so and | |
1503 // in case of error it checks if .dll/.so was built for the | |
1504 // same architecture as Hotspot is running on | |
1505 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
1506 { | |
1507 void * result = LoadLibrary(name); | |
1508 if (result != NULL) | |
1509 { | |
1510 return result; | |
1511 } | |
1512 | |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1513 DWORD errcode = GetLastError(); |
0 | 1514 if (errcode == ERROR_MOD_NOT_FOUND) { |
1515 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
1516 ebuf[ebuflen-1]='\0'; | |
1517 return NULL; | |
1518 } | |
1519 | |
1520 // Parsing dll below | |
1521 // If we can read dll-info and find that dll was built | |
1522 // for an architecture other than Hotspot is running in | |
1523 // - then print to buffer "DLL was built for a different architecture" | |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1524 // else call os::lasterror to obtain system error message |
0 | 1525 |
1526 // Read system error message into ebuf | |
1527 // It may or may not be overwritten below (in the for loop and just above) | |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1528 lasterror(ebuf, (size_t) ebuflen); |
0 | 1529 ebuf[ebuflen-1]='\0'; |
1530 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
1531 if (file_descriptor<0) | |
1532 { | |
1533 return NULL; | |
1534 } | |
1535 | |
1536 uint32_t signature_offset; | |
1537 uint16_t lib_arch=0; | |
1538 bool failed_to_get_lib_arch= | |
1539 ( | |
1540 //Go to position 3c in the dll | |
1541 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
1542 || | |
1543 // Read loacation of signature | |
1544 (sizeof(signature_offset)!= | |
1545 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
1546 || | |
1547 //Go to COFF File Header in dll | |
1548 //that is located after"signature" (4 bytes long) | |
1549 (os::seek_to_file_offset(file_descriptor, | |
1550 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
1551 || | |
1552 //Read field that contains code of architecture | |
1553 // that dll was build for | |
1554 (sizeof(lib_arch)!= | |
1555 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
1556 ); | |
1557 | |
1558 ::close(file_descriptor); | |
1559 if (failed_to_get_lib_arch) | |
1560 { | |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1561 // file i/o error - report os::lasterror(...) msg |
0 | 1562 return NULL; |
1563 } | |
1564 | |
1565 typedef struct | |
1566 { | |
1567 uint16_t arch_code; | |
1568 char* arch_name; | |
1569 } arch_t; | |
1570 | |
1571 static const arch_t arch_array[]={ | |
1572 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
1573 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
1574 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
1575 }; | |
1576 #if (defined _M_IA64) | |
1577 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
1578 #elif (defined _M_AMD64) | |
1579 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
1580 #elif (defined _M_IX86) | |
1581 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
1582 #else | |
1583 #error Method os::dll_load requires that one of following \ | |
1584 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
1585 #endif | |
1586 | |
1587 | |
1588 // Obtain a string for printf operation | |
1589 // lib_arch_str shall contain string what platform this .dll was built for | |
1590 // running_arch_str shall string contain what platform Hotspot was built for | |
1591 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
1592 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
1593 { | |
1594 if (lib_arch==arch_array[i].arch_code) | |
1595 lib_arch_str=arch_array[i].arch_name; | |
1596 if (running_arch==arch_array[i].arch_code) | |
1597 running_arch_str=arch_array[i].arch_name; | |
1598 } | |
1599 | |
1600 assert(running_arch_str, | |
1601 "Didn't find runing architecture code in arch_array"); | |
1602 | |
1603 // If the architure is right | |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1604 // but some other error took place - report os::lasterror(...) msg |
0 | 1605 if (lib_arch == running_arch) |
1606 { | |
1607 return NULL; | |
1608 } | |
1609 | |
1610 if (lib_arch_str!=NULL) | |
1611 { | |
1612 ::_snprintf(ebuf, ebuflen-1, | |
1613 "Can't load %s-bit .dll on a %s-bit platform", | |
1614 lib_arch_str,running_arch_str); | |
1615 } | |
1616 else | |
1617 { | |
1618 // don't know what architecture this dll was build for | |
1619 ::_snprintf(ebuf, ebuflen-1, | |
1620 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
1621 lib_arch,running_arch_str); | |
1622 } | |
1623 | |
1624 return NULL; | |
1625 } | |
1626 | |
1627 | |
1628 void os::print_dll_info(outputStream *st) { | |
1629 int pid = os::current_process_id(); | |
1630 st->print_cr("Dynamic libraries:"); | |
1631 enumerate_modules(pid, _print_module, (void *)st); | |
1632 } | |
1633 | |
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1634 void os::print_os_info_brief(outputStream* st) { |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1635 os::print_os_info(st); |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1636 } |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1637 |
0 | 1638 void os::print_os_info(outputStream* st) { |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1639 st->print("OS:"); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1640 |
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1641 os::win32::print_windows_version(st); |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1642 } |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1643 |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1644 void os::win32::print_windows_version(outputStream* st) { |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1645 OSVERSIONINFOEX osvi; |
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1646 SYSTEM_INFO si; |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1647 |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1648 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1649 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1650 |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1651 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1652 st->print_cr("N/A"); |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1653 return; |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1654 } |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1655 |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1656 int os_vers = osvi.dwMajorVersion * 1000 + osvi.dwMinorVersion; |
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1657 |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1658 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1659 if (os_vers >= 5002) { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1660 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1661 // find out whether we are running on 64 bit processor or not. |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1662 if (os::Kernel32Dll::GetNativeSystemInfoAvailable()) { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1663 os::Kernel32Dll::GetNativeSystemInfo(&si); |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1664 } else { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1665 GetSystemInfo(&si); |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1666 } |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1667 } |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1668 |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1669 if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) { |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1670 switch (os_vers) { |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1671 case 3051: st->print(" Windows NT 3.51"); break; |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1672 case 4000: st->print(" Windows NT 4.0"); break; |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1673 case 5000: st->print(" Windows 2000"); break; |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1674 case 5001: st->print(" Windows XP"); break; |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1675 case 5002: |
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1676 if (osvi.wProductType == VER_NT_WORKSTATION && |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1677 si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1678 st->print(" Windows XP x64 Edition"); |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1679 } else { |
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1680 st->print(" Windows Server 2003 family"); |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1681 } |
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1682 break; |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1683 |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1684 case 6000: |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1685 if (osvi.wProductType == VER_NT_WORKSTATION) { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1686 st->print(" Windows Vista"); |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1687 } else { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1688 st->print(" Windows Server 2008"); |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1689 } |
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1690 break; |
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1691 |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1692 case 6001: |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1693 if (osvi.wProductType == VER_NT_WORKSTATION) { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1694 st->print(" Windows 7"); |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1695 } else { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1696 st->print(" Windows Server 2008 R2"); |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1697 } |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1698 break; |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1699 |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1700 case 6002: |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1701 if (osvi.wProductType == VER_NT_WORKSTATION) { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1702 st->print(" Windows 8"); |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1703 } else { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1704 st->print(" Windows Server 2012"); |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1705 } |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1706 break; |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1707 |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
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|
1708 case 6003: |
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8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
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|
1709 if (osvi.wProductType == VER_NT_WORKSTATION) { |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
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diff
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|
1710 st->print(" Windows 8.1"); |
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8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
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|
1711 } else { |
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8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
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|
1712 st->print(" Windows Server 2012 R2"); |
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8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
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|
1713 } |
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|
1714 break; |
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|
1715 |
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|
1716 default: // future os |
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|
1717 // Unrecognized windows, print out its major and minor versions |
273
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|
1718 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
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|
1719 } |
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|
1720 } else { |
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diff
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|
1721 switch (os_vers) { |
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|
1722 case 4000: st->print(" Windows 95"); break; |
6f17a7c9f8b4
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|
1723 case 4010: st->print(" Windows 98"); break; |
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1724 case 4090: st->print(" Windows Me"); break; |
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|
1725 default: // future windows, print out its major and minor versions |
6f17a7c9f8b4
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diff
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|
1726 st->print(" Windows %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
6f17a7c9f8b4
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diff
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|
1727 } |
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|
1728 } |
12018
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|
1729 |
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|
1730 if (os_vers >= 6000 && si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) { |
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|
1731 st->print(" , 64 bit"); |
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|
1732 } |
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|
1733 |
273
6f17a7c9f8b4
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|
1734 st->print(" Build %d", osvi.dwBuildNumber); |
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|
1735 st->print(" %s", osvi.szCSDVersion); // service pack |
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|
1736 st->cr(); |
0 | 1737 } |
1738 | |
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
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parents:
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diff
changeset
|
1739 void os::pd_print_cpu_info(outputStream* st) { |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
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diff
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|
1740 // Nothing to do for now. |
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diff
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|
1741 } |
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diff
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|
1742 |
0 | 1743 void os::print_memory_info(outputStream* st) { |
1744 st->print("Memory:"); | |
1745 st->print(" %dk page", os::vm_page_size()>>10); | |
1746 | |
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
|
1747 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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
|
1748 // 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
|
1749 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
|
1750 ms.dwLength = sizeof(ms); |
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6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
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diff
changeset
|
1751 GlobalMemoryStatusEx(&ms); |
0 | 1752 |
1753 st->print(", physical %uk", os::physical_memory() >> 10); | |
1754 st->print("(%uk free)", os::available_memory() >> 10); | |
1755 | |
877
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parents:
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diff
changeset
|
1756 st->print(", swap %uk", ms.ullTotalPageFile >> 10); |
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diff
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|
1757 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
0 | 1758 st->cr(); |
1759 } | |
1760 | |
1761 void os::print_siginfo(outputStream *st, void *siginfo) { | |
1762 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
1763 st->print("siginfo:"); | |
1764 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
1765 | |
1766 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
1767 er->NumberParameters >= 2) { | |
1768 switch (er->ExceptionInformation[0]) { | |
1769 case 0: st->print(", reading address"); break; | |
1770 case 1: st->print(", writing address"); break; | |
1771 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
1772 er->ExceptionInformation[0]); | |
1773 } | |
1774 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
1775 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
1776 er->NumberParameters >= 2 && UseSharedSpaces) { | |
1777 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
1778 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
1779 st->print("\n\nError accessing class data sharing archive." \ | |
1780 " Mapped file inaccessible during execution, " \ | |
1781 " possible disk/network problem."); | |
1782 } | |
1783 } else { | |
1784 int num = er->NumberParameters; | |
1785 if (num > 0) { | |
1786 st->print(", ExceptionInformation="); | |
1787 for (int i = 0; i < num; i++) { | |
1788 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
1789 } | |
1790 } | |
1791 } | |
1792 st->cr(); | |
1793 } | |
1794 | |
1795 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
1796 // do nothing | |
1797 } | |
1798 | |
1799 static char saved_jvm_path[MAX_PATH] = {0}; | |
1800 | |
7456
7d42f3b08300
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7206
diff
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|
1801 // Find the full path to the current module, jvm.dll |
0 | 1802 void os::jvm_path(char *buf, jint buflen) { |
1803 // Error checking. | |
1804 if (buflen < MAX_PATH) { | |
1805 assert(false, "must use a large-enough buffer"); | |
1806 buf[0] = '\0'; | |
1807 return; | |
1808 } | |
1809 // Lazy resolve the path to current module. | |
1810 if (saved_jvm_path[0] != 0) { | |
1811 strcpy(buf, saved_jvm_path); | |
1812 return; | |
1813 } | |
1814 | |
1985 | 1815 buf[0] = '\0'; |
2302
da091bb67459
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2205
diff
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|
1816 if (Arguments::created_by_gamma_launcher()) { |
1985 | 1817 // Support for the gamma launcher. Check for an |
2027
aa6e219afbf1
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diff
changeset
|
1818 // JAVA_HOME environment variable |
1985 | 1819 // and fix up the path so it looks like |
1820 // libjvm.so is installed there (append a fake suffix | |
1821 // hotspot/libjvm.so). | |
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
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2023
diff
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|
1822 char* java_home_var = ::getenv("JAVA_HOME"); |
1985 | 1823 if (java_home_var != NULL && java_home_var[0] != 0) { |
1824 | |
1825 strncpy(buf, java_home_var, buflen); | |
1826 | |
1827 // determine if this is a legacy image or modules image | |
1828 // modules image doesn't have "jre" subdirectory | |
1829 size_t len = strlen(buf); | |
1830 char* jrebin_p = buf + len; | |
1831 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
1832 if (0 != _access(buf, 0)) { | |
1833 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
1834 } | |
1835 len = strlen(buf); | |
1836 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
1837 } | |
1838 } | |
1839 | |
1840 if(buf[0] == '\0') { | |
0 | 1841 GetModuleFileName(vm_lib_handle, buf, buflen); |
1985 | 1842 } |
0 | 1843 strcpy(saved_jvm_path, buf); |
1844 } | |
1845 | |
1846 | |
1847 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
1848 #ifndef _WIN64 | |
1849 st->print("_"); | |
1850 #endif | |
1851 } | |
1852 | |
1853 | |
1854 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
1855 #ifndef _WIN64 | |
1856 st->print("@%d", args_size * sizeof(int)); | |
1857 #endif | |
1858 } | |
1859 | |
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|
1860 // This method is a copy of JDK's sysGetLastErrorString |
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|
1861 // from src/windows/hpi/src/system_md.c |
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|
1862 |
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|
1863 size_t os::lasterror(char* buf, size_t len) { |
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|
1864 DWORD errval; |
1980
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|
1865 |
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diff
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|
1866 if ((errval = GetLastError()) != 0) { |
4750
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|
1867 // DOS error |
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|
1868 size_t n = (size_t)FormatMessage( |
1980
828eafbd85cc
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|
1869 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
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diff
changeset
|
1870 NULL, |
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diff
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|
1871 errval, |
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|
1872 0, |
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diff
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|
1873 buf, |
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|
1874 (DWORD)len, |
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diff
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|
1875 NULL); |
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diff
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|
1876 if (n > 3) { |
4750
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|
1877 // Drop final '.', CR, LF |
1980
828eafbd85cc
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diff
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|
1878 if (buf[n - 1] == '\n') n--; |
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diff
changeset
|
1879 if (buf[n - 1] == '\r') n--; |
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diff
changeset
|
1880 if (buf[n - 1] == '.') n--; |
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diff
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|
1881 buf[n] = '\0'; |
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|
1882 } |
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diff
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|
1883 return n; |
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diff
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|
1884 } |
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|
1885 |
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diff
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|
1886 if (errno != 0) { |
4750
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|
1887 // C runtime error that has no corresponding DOS error code |
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diff
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|
1888 const char* s = strerror(errno); |
1980
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|
1889 size_t n = strlen(s); |
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diff
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|
1890 if (n >= len) n = len - 1; |
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diff
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|
1891 strncpy(buf, s, n); |
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|
1892 buf[n] = '\0'; |
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diff
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|
1893 return n; |
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diff
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|
1894 } |
4750
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|
1895 |
1980
828eafbd85cc
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diff
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|
1896 return 0; |
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diff
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|
1897 } |
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|
1898 |
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|
1899 int os::get_last_error() { |
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|
1900 DWORD error = GetLastError(); |
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|
1901 if (error == 0) |
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|
1902 error = errno; |
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|
1903 return (int)error; |
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|
1904 } |
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|
1905 |
0 | 1906 // sun.misc.Signal |
1907 // NOTE that this is a workaround for an apparent kernel bug where if | |
1908 // a signal handler for SIGBREAK is installed then that signal handler | |
1909 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
1910 // See bug 4416763. | |
1911 static void (*sigbreakHandler)(int) = NULL; | |
1912 | |
1913 static void UserHandler(int sig, void *siginfo, void *context) { | |
1914 os::signal_notify(sig); | |
1915 // We need to reinstate the signal handler each time... | |
1916 os::signal(sig, (void*)UserHandler); | |
1917 } | |
1918 | |
1919 void* os::user_handler() { | |
1920 return (void*) UserHandler; | |
1921 } | |
1922 | |
1923 void* os::signal(int signal_number, void* handler) { | |
1924 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
1925 void (*oldHandler)(int) = sigbreakHandler; | |
1926 sigbreakHandler = (void (*)(int)) handler; | |
1927 return (void*) oldHandler; | |
1928 } else { | |
1929 return (void*)::signal(signal_number, (void (*)(int))handler); | |
1930 } | |
1931 } | |
1932 | |
1933 void os::signal_raise(int signal_number) { | |
1934 raise(signal_number); | |
1935 } | |
1936 | |
1937 // The Win32 C runtime library maps all console control events other than ^C | |
1938 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
1939 // logoff, and shutdown events. We therefore install our own console handler | |
1940 // that raises SIGTERM for the latter cases. | |
1941 // | |
1942 static BOOL WINAPI consoleHandler(DWORD event) { | |
1943 switch(event) { | |
1944 case CTRL_C_EVENT: | |
1945 if (is_error_reported()) { | |
1946 // Ctrl-C is pressed during error reporting, likely because the error | |
1947 // handler fails to abort. Let VM die immediately. | |
1948 os::die(); | |
1949 } | |
1950 | |
1951 os::signal_raise(SIGINT); | |
1952 return TRUE; | |
1953 break; | |
1954 case CTRL_BREAK_EVENT: | |
1955 if (sigbreakHandler != NULL) { | |
1956 (*sigbreakHandler)(SIGBREAK); | |
1957 } | |
1958 return TRUE; | |
1959 break; | |
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1960 case CTRL_LOGOFF_EVENT: { |
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1961 // Don't terminate JVM if it is running in a non-interactive session, |
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1962 // such as a service process. |
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1963 USEROBJECTFLAGS flags; |
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1964 HANDLE handle = GetProcessWindowStation(); |
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1965 if (handle != NULL && |
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1966 GetUserObjectInformation(handle, UOI_FLAGS, &flags, |
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1967 sizeof( USEROBJECTFLAGS), NULL)) { |
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1968 // If it is a non-interactive session, let next handler to deal |
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1969 // with it. |
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1970 if ((flags.dwFlags & WSF_VISIBLE) == 0) { |
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1971 return FALSE; |
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1972 } |
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1973 } |
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1974 } |
0 | 1975 case CTRL_CLOSE_EVENT: |
1976 case CTRL_SHUTDOWN_EVENT: | |
1977 os::signal_raise(SIGTERM); | |
1978 return TRUE; | |
1979 break; | |
1980 default: | |
1981 break; | |
1982 } | |
1983 return FALSE; | |
1984 } | |
1985 | |
1986 /* | |
1987 * The following code is moved from os.cpp for making this | |
1988 * code platform specific, which it is by its very nature. | |
1989 */ | |
1990 | |
1991 // Return maximum OS signal used + 1 for internal use only | |
1992 // Used as exit signal for signal_thread | |
1993 int os::sigexitnum_pd(){ | |
1994 return NSIG; | |
1995 } | |
1996 | |
1997 // a counter for each possible signal value, including signal_thread exit signal | |
1998 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
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1999 static HANDLE sig_sem = NULL; |
0 | 2000 |
2001 void os::signal_init_pd() { | |
2002 // Initialize signal structures | |
2003 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
2004 | |
2005 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
2006 | |
2007 // Programs embedding the VM do not want it to attempt to receive | |
2008 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
2009 // shutdown hooks mechanism introduced in 1.3. For example, when | |
2010 // the VM is run as part of a Windows NT service (i.e., a servlet | |
2011 // engine in a web server), the correct behavior is for any console | |
2012 // control handler to return FALSE, not TRUE, because the OS's | |
2013 // "final" handler for such events allows the process to continue if | |
2014 // it is a service (while terminating it if it is not a service). | |
2015 // To make this behavior uniform and the mechanism simpler, we | |
2016 // completely disable the VM's usage of these console events if -Xrs | |
2017 // (=ReduceSignalUsage) is specified. This means, for example, that | |
2018 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
2019 // case. See bugs 4323062, 4345157, and related bugs. | |
2020 | |
2021 if (!ReduceSignalUsage) { | |
2022 // Add a CTRL-C handler | |
2023 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
2024 } | |
2025 } | |
2026 | |
2027 void os::signal_notify(int signal_number) { | |
2028 BOOL ret; | |
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2029 if (sig_sem != NULL) { |
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2030 Atomic::inc(&pending_signals[signal_number]); |
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2031 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); |
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2032 assert(ret != 0, "ReleaseSemaphore() failed"); |
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2033 } |
0 | 2034 } |
2035 | |
2036 static int check_pending_signals(bool wait_for_signal) { | |
2037 DWORD ret; | |
2038 while (true) { | |
2039 for (int i = 0; i < NSIG + 1; i++) { | |
2040 jint n = pending_signals[i]; | |
2041 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
2042 return i; | |
2043 } | |
2044 } | |
2045 if (!wait_for_signal) { | |
2046 return -1; | |
2047 } | |
2048 | |
2049 JavaThread *thread = JavaThread::current(); | |
2050 | |
2051 ThreadBlockInVM tbivm(thread); | |
2052 | |
2053 bool threadIsSuspended; | |
2054 do { | |
2055 thread->set_suspend_equivalent(); | |
2056 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
2057 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
2058 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
2059 | |
2060 // were we externally suspended while we were waiting? | |
2061 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
2062 if (threadIsSuspended) { | |
2063 // | |
2064 // The semaphore has been incremented, but while we were waiting | |
2065 // another thread suspended us. We don't want to continue running | |
2066 // while suspended because that would surprise the thread that | |
2067 // suspended us. | |
2068 // | |
2069 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
2070 assert(ret != 0, "ReleaseSemaphore() failed"); | |
2071 | |
2072 thread->java_suspend_self(); | |
2073 } | |
2074 } while (threadIsSuspended); | |
2075 } | |
2076 } | |
2077 | |
2078 int os::signal_lookup() { | |
2079 return check_pending_signals(false); | |
2080 } | |
2081 | |
2082 int os::signal_wait() { | |
2083 return check_pending_signals(true); | |
2084 } | |
2085 | |
2086 // Implicit OS exception handling | |
2087 | |
2088 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
2089 JavaThread* thread = JavaThread::current(); | |
2090 // Save pc in thread | |
2091 #ifdef _M_IA64 | |
7994 | 2092 // Do not blow up if no thread info available. |
2093 if (thread) { | |
2094 // Saving PRECISE pc (with slot information) in thread. | |
2095 uint64_t precise_pc = (uint64_t) exceptionInfo->ExceptionRecord->ExceptionAddress; | |
2096 // Convert precise PC into "Unix" format | |
2097 precise_pc = (precise_pc & 0xFFFFFFFFFFFFFFF0) | ((precise_pc & 0xF) >> 2); | |
2098 thread->set_saved_exception_pc((address)precise_pc); | |
2099 } | |
0 | 2100 // Set pc to handler |
2101 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
7994 | 2102 // Clear out psr.ri (= Restart Instruction) in order to continue |
2103 // at the beginning of the target bundle. | |
2104 exceptionInfo->ContextRecord->StIPSR &= 0xFFFFF9FFFFFFFFFF; | |
2105 assert(((DWORD64)handler & 0xF) == 0, "Target address must point to the beginning of a bundle!"); | |
0 | 2106 #elif _M_AMD64 |
7994 | 2107 // Do not blow up if no thread info available. |
2108 if (thread) { | |
2109 thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Rip); | |
2110 } | |
0 | 2111 // Set pc to handler |
2112 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
2113 #else | |
7994 | 2114 // Do not blow up if no thread info available. |
2115 if (thread) { | |
2116 thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Eip); | |
2117 } | |
0 | 2118 // Set pc to handler |
7994 | 2119 exceptionInfo->ContextRecord->Eip = (DWORD)(DWORD_PTR)handler; |
0 | 2120 #endif |
2121 | |
2122 // Continue the execution | |
2123 return EXCEPTION_CONTINUE_EXECUTION; | |
2124 } | |
2125 | |
2126 | |
2127 // Used for PostMortemDump | |
2128 extern "C" void safepoints(); | |
2129 extern "C" void find(int x); | |
2130 extern "C" void events(); | |
2131 | |
2132 // According to Windows API documentation, an illegal instruction sequence should generate | |
2133 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
2134 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
2135 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
2136 | |
2137 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
2138 | |
2139 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
2140 // Once a system header becomes available, the "real" define should be | |
2141 // included or copied here. | |
2142 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
2143 | |
7994 | 2144 // Handle NAT Bit consumption on IA64. |
2145 #ifdef _M_IA64 | |
2146 #define EXCEPTION_REG_NAT_CONSUMPTION STATUS_REG_NAT_CONSUMPTION | |
2147 #endif | |
2148 | |
2149 // Windows Vista/2008 heap corruption check | |
2150 #define EXCEPTION_HEAP_CORRUPTION 0xC0000374 | |
2151 | |
0 | 2152 #define def_excpt(val) #val, val |
2153 | |
2154 struct siglabel { | |
2155 char *name; | |
2156 int number; | |
2157 }; | |
2158 | |
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2159 // All Visual C++ exceptions thrown from code generated by the Microsoft Visual |
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2160 // C++ compiler contain this error code. Because this is a compiler-generated |
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2161 // error, the code is not listed in the Win32 API header files. |
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2162 // The code is actually a cryptic mnemonic device, with the initial "E" |
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2163 // standing for "exception" and the final 3 bytes (0x6D7363) representing the |
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2164 // ASCII values of "msc". |
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2165 |
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2166 #define EXCEPTION_UNCAUGHT_CXX_EXCEPTION 0xE06D7363 |
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2167 |
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2168 |
0 | 2169 struct siglabel exceptlabels[] = { |
2170 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
2171 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
2172 def_excpt(EXCEPTION_BREAKPOINT), | |
2173 def_excpt(EXCEPTION_SINGLE_STEP), | |
2174 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
2175 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
2176 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
2177 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
2178 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
2179 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
2180 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
2181 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
2182 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
2183 def_excpt(EXCEPTION_INT_OVERFLOW), | |
2184 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
2185 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
2186 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
2187 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
2188 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
2189 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
2190 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
2191 def_excpt(EXCEPTION_GUARD_PAGE), | |
2192 def_excpt(EXCEPTION_INVALID_HANDLE), | |
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2193 def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION), |
7994 | 2194 def_excpt(EXCEPTION_HEAP_CORRUPTION), |
2195 #ifdef _M_IA64 | |
2196 def_excpt(EXCEPTION_REG_NAT_CONSUMPTION), | |
2197 #endif | |
0 | 2198 NULL, 0 |
2199 }; | |
2200 | |
2201 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
2202 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
2203 if (exceptlabels[i].number == exception_code) { | |
2204 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
2205 return buf; | |
2206 } | |
2207 } | |
2208 | |
2209 return NULL; | |
2210 } | |
2211 | |
2212 //----------------------------------------------------------------------------- | |
2213 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2214 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
2215 // (division by zero is handled explicitly) | |
2216 #ifdef _M_IA64 | |
2217 assert(0, "Fix Handle_IDiv_Exception"); | |
2218 #elif _M_AMD64 | |
2219 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
2220 address pc = (address)ctx->Rip; | |
2221 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
2222 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
2223 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
2224 // set correct result values and continue after idiv instruction | |
2225 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
2226 ctx->Rax = (DWORD)min_jint; // result | |
2227 ctx->Rdx = (DWORD)0; // remainder | |
2228 // Continue the execution | |
2229 #else | |
2230 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
2231 address pc = (address)ctx->Eip; | |
2232 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
2233 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
2234 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
2235 // set correct result values and continue after idiv instruction | |
2236 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
2237 ctx->Eax = (DWORD)min_jint; // result | |
2238 ctx->Edx = (DWORD)0; // remainder | |
2239 // Continue the execution | |
2240 #endif | |
2241 return EXCEPTION_CONTINUE_EXECUTION; | |
2242 } | |
2243 | |
2244 #ifndef _WIN64 | |
2245 //----------------------------------------------------------------------------- | |
2246 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
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2247 // handle exception caused by native method modifying control word |
0 | 2248 PCONTEXT ctx = exceptionInfo->ContextRecord; |
2249 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2250 | |
2251 switch (exception_code) { | |
2252 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
2253 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
2254 case EXCEPTION_FLT_INEXACT_RESULT: | |
2255 case EXCEPTION_FLT_INVALID_OPERATION: | |
2256 case EXCEPTION_FLT_OVERFLOW: | |
2257 case EXCEPTION_FLT_STACK_CHECK: | |
2258 case EXCEPTION_FLT_UNDERFLOW: | |
2259 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
2260 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
2261 // Restore FPCW and mask out FLT exceptions | |
2262 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
2263 // Mask out pending FLT exceptions | |
2264 ctx->FloatSave.StatusWord &= 0xffffff00; | |
2265 return EXCEPTION_CONTINUE_EXECUTION; | |
2266 } | |
2267 } | |
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2268 |
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2269 if (prev_uef_handler != NULL) { |
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2270 // We didn't handle this exception so pass it to the previous |
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2271 // UnhandledExceptionFilter. |
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2272 return (prev_uef_handler)(exceptionInfo); |
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2273 } |
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2274 |
0 | 2275 return EXCEPTION_CONTINUE_SEARCH; |
2276 } | |
2277 #else //_WIN64 | |
2278 /* | |
2279 On Windows, the mxcsr control bits are non-volatile across calls | |
2280 See also CR 6192333 | |
2281 If EXCEPTION_FLT_* happened after some native method modified | |
2282 mxcsr - it is not a jvm fault. | |
2283 However should we decide to restore of mxcsr after a faulty | |
2284 native method we can uncomment following code | |
2285 jint MxCsr = INITIAL_MXCSR; | |
2286 // we can't use StubRoutines::addr_mxcsr_std() | |
2287 // because in Win64 mxcsr is not saved there | |
2288 if (MxCsr != ctx->MxCsr) { | |
2289 ctx->MxCsr = MxCsr; | |
2290 return EXCEPTION_CONTINUE_EXECUTION; | |
2291 } | |
2292 | |
2293 */ | |
2294 #endif //_WIN64 | |
2295 | |
2296 | |
2297 // Fatal error reporting is single threaded so we can make this a | |
2298 // static and preallocated. If it's more than MAX_PATH silently ignore | |
2299 // it. | |
2300 static char saved_error_file[MAX_PATH] = {0}; | |
2301 | |
2302 void os::set_error_file(const char *logfile) { | |
2303 if (strlen(logfile) <= MAX_PATH) { | |
2304 strncpy(saved_error_file, logfile, MAX_PATH); | |
2305 } | |
2306 } | |
2307 | |
2308 static inline void report_error(Thread* t, DWORD exception_code, | |
2309 address addr, void* siginfo, void* context) { | |
2310 VMError err(t, exception_code, addr, siginfo, context); | |
2311 err.report_and_die(); | |
2312 | |
2313 // If UseOsErrorReporting, this will return here and save the error file | |
2314 // somewhere where we can find it in the minidump. | |
2315 } | |
2316 | |
2317 //----------------------------------------------------------------------------- | |
2318 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2319 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
2320 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2321 #ifdef _M_IA64 | |
7994 | 2322 // On Itanium, we need the "precise pc", which has the slot number coded |
2323 // into the least 4 bits: 0000=slot0, 0100=slot1, 1000=slot2 (Windows format). | |
2324 address pc = (address) exceptionInfo->ExceptionRecord->ExceptionAddress; | |
2325 // Convert the pc to "Unix format", which has the slot number coded | |
2326 // into the least 2 bits: 0000=slot0, 0001=slot1, 0010=slot2 | |
2327 // This is needed for IA64 because "relocation" / "implicit null check" / "poll instruction" | |
2328 // information is saved in the Unix format. | |
2329 address pc_unix_format = (address) ((((uint64_t)pc) & 0xFFFFFFFFFFFFFFF0) | ((((uint64_t)pc) & 0xF) >> 2)); | |
0 | 2330 #elif _M_AMD64 |
2331 address pc = (address) exceptionInfo->ContextRecord->Rip; | |
2332 #else | |
2333 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
2334 #endif | |
2335 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
2336 | |
11127 | 2337 // Handle SafeFetch32 and SafeFetchN exceptions. |
2338 if (StubRoutines::is_safefetch_fault(pc)) { | |
2339 return Handle_Exception(exceptionInfo, StubRoutines::continuation_for_safefetch_fault(pc)); | |
2340 } | |
2341 | |
0 | 2342 #ifndef _WIN64 |
2343 // Execution protection violation - win32 running on AMD64 only | |
2344 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
2345 // This is safe to do because we have a new/unique ExceptionInformation | |
2346 // code for this condition. | |
2347 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2348 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2349 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
2350 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2351 | |
2352 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
2353 int page_size = os::vm_page_size(); | |
2354 | |
2355 // Make sure the pc and the faulting address are sane. | |
2356 // | |
2357 // If an instruction spans a page boundary, and the page containing | |
2358 // the beginning of the instruction is executable but the following | |
2359 // page is not, the pc and the faulting address might be slightly | |
2360 // different - we still want to unguard the 2nd page in this case. | |
2361 // | |
2362 // 15 bytes seems to be a (very) safe value for max instruction size. | |
2363 bool pc_is_near_addr = | |
2364 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
2365 bool instr_spans_page_boundary = | |
2366 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
2367 (intptr_t) page_size) > 0); | |
2368 | |
2369 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
2370 static volatile address last_addr = | |
2371 (address) os::non_memory_address_word(); | |
2372 | |
2373 // In conservative mode, don't unguard unless the address is in the VM | |
2374 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
2375 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
2376 | |
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2377 // Set memory to RWX and retry |
0 | 2378 address page_start = |
2379 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
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2380 bool res = os::protect_memory((char*) page_start, page_size, |
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2381 os::MEM_PROT_RWX); |
0 | 2382 |
2383 if (PrintMiscellaneous && Verbose) { | |
2384 char buf[256]; | |
2385 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
2386 "at " INTPTR_FORMAT | |
2387 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
2388 page_start, (res ? "success" : strerror(errno))); | |
2389 tty->print_raw_cr(buf); | |
2390 } | |
2391 | |
2392 // Set last_addr so if we fault again at the same address, we don't | |
2393 // end up in an endless loop. | |
2394 // | |
2395 // There are two potential complications here. Two threads trapping | |
2396 // at the same address at the same time could cause one of the | |
2397 // threads to think it already unguarded, and abort the VM. Likely | |
2398 // very rare. | |
2399 // | |
2400 // The other race involves two threads alternately trapping at | |
2401 // different addresses and failing to unguard the page, resulting in | |
2402 // an endless loop. This condition is probably even more unlikely | |
2403 // than the first. | |
2404 // | |
2405 // Although both cases could be avoided by using locks or thread | |
2406 // local last_addr, these solutions are unnecessary complication: | |
2407 // this handler is a best-effort safety net, not a complete solution. | |
2408 // It is disabled by default and should only be used as a workaround | |
2409 // in case we missed any no-execute-unsafe VM code. | |
2410 | |
2411 last_addr = addr; | |
2412 | |
2413 return EXCEPTION_CONTINUE_EXECUTION; | |
2414 } | |
2415 } | |
2416 | |
2417 // Last unguard failed or not unguarding | |
2418 tty->print_raw_cr("Execution protection violation"); | |
2419 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
2420 exceptionInfo->ContextRecord); | |
2421 return EXCEPTION_CONTINUE_SEARCH; | |
2422 } | |
2423 } | |
2424 #endif // _WIN64 | |
2425 | |
2426 // Check to see if we caught the safepoint code in the | |
2427 // process of write protecting the memory serialization page. | |
2428 // It write enables the page immediately after protecting it | |
2429 // so just return. | |
2430 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
2431 JavaThread* thread = (JavaThread*) t; | |
2432 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2433 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2434 if ( os::is_memory_serialize_page(thread, addr) ) { | |
2435 // Block current thread until the memory serialize page permission restored. | |
2436 os::block_on_serialize_page_trap(); | |
2437 return EXCEPTION_CONTINUE_EXECUTION; | |
2438 } | |
2439 } | |
2440 | |
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2441 if ((exception_code == EXCEPTION_ACCESS_VIOLATION) && |
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2442 VM_Version::is_cpuinfo_segv_addr(pc)) { |
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2443 // Verify that OS save/restore AVX registers. |
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2444 return Handle_Exception(exceptionInfo, VM_Version::cpuinfo_cont_addr()); |
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|
2445 } |
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2446 |
0 | 2447 if (t != NULL && t->is_Java_thread()) { |
2448 JavaThread* thread = (JavaThread*) t; | |
2449 bool in_java = thread->thread_state() == _thread_in_Java; | |
2450 | |
2451 // Handle potential stack overflows up front. | |
2452 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
2453 if (os::uses_stack_guard_pages()) { | |
2454 #ifdef _M_IA64 | |
7994 | 2455 // Use guard page for register stack. |
0 | 2456 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; |
2457 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
7994 | 2458 // Check for a register stack overflow on Itanium |
2459 if (thread->addr_inside_register_stack_red_zone(addr)) { | |
2460 // Fatal red zone violation happens if the Java program | |
2461 // catches a StackOverflow error and does so much processing | |
2462 // that it runs beyond the unprotected yellow guard zone. As | |
2463 // a result, we are out of here. | |
2464 fatal("ERROR: Unrecoverable stack overflow happened. JVM will exit."); | |
2465 } else if(thread->addr_inside_register_stack(addr)) { | |
2466 // Disable the yellow zone which sets the state that | |
2467 // we've got a stack overflow problem. | |
2468 if (thread->stack_yellow_zone_enabled()) { | |
2469 thread->disable_stack_yellow_zone(); | |
2470 } | |
2471 // Give us some room to process the exception. | |
2472 thread->disable_register_stack_guard(); | |
2473 // Tracing with +Verbose. | |
2474 if (Verbose) { | |
2475 tty->print_cr("SOF Compiled Register Stack overflow at " INTPTR_FORMAT " (SIGSEGV)", pc); | |
2476 tty->print_cr("Register Stack access at " INTPTR_FORMAT, addr); | |
2477 tty->print_cr("Register Stack base " INTPTR_FORMAT, thread->register_stack_base()); | |
2478 tty->print_cr("Register Stack [" INTPTR_FORMAT "," INTPTR_FORMAT "]", | |
2479 thread->register_stack_base(), | |
2480 thread->register_stack_base() + thread->stack_size()); | |
2481 } | |
2482 | |
2483 // Reguard the permanent register stack red zone just to be sure. | |
2484 // We saw Windows silently disabling this without telling us. | |
2485 thread->enable_register_stack_red_zone(); | |
2486 | |
2487 return Handle_Exception(exceptionInfo, | |
2488 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
0 | 2489 } |
2490 #endif | |
2491 if (thread->stack_yellow_zone_enabled()) { | |
2492 // Yellow zone violation. The o/s has unprotected the first yellow | |
2493 // zone page for us. Note: must call disable_stack_yellow_zone to | |
2494 // update the enabled status, even if the zone contains only one page. | |
2495 thread->disable_stack_yellow_zone(); | |
2496 // If not in java code, return and hope for the best. | |
2497 return in_java ? Handle_Exception(exceptionInfo, | |
2498 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
2499 : EXCEPTION_CONTINUE_EXECUTION; | |
2500 } else { | |
2501 // Fatal red zone violation. | |
2502 thread->disable_stack_red_zone(); | |
2503 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
2504 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2505 exceptionInfo->ContextRecord); | |
2506 return EXCEPTION_CONTINUE_SEARCH; | |
2507 } | |
2508 } else if (in_java) { | |
2509 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
2510 // a one-time-only guard page, which it has released to us. The next | |
2511 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
2512 return Handle_Exception(exceptionInfo, | |
2513 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2514 } else { | |
2515 // Can only return and hope for the best. Further stack growth will | |
2516 // result in an ACCESS_VIOLATION. | |
2517 return EXCEPTION_CONTINUE_EXECUTION; | |
2518 } | |
2519 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2520 // Either stack overflow or null pointer exception. | |
2521 if (in_java) { | |
2522 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2523 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2524 address stack_end = thread->stack_base() - thread->stack_size(); | |
2525 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
2526 // Stack overflow. | |
2527 assert(!os::uses_stack_guard_pages(), | |
2528 "should be caught by red zone code above."); | |
2529 return Handle_Exception(exceptionInfo, | |
2530 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2531 } | |
2532 // | |
2533 // Check for safepoint polling and implicit null | |
2534 // We only expect null pointers in the stubs (vtable) | |
2535 // the rest are checked explicitly now. | |
2536 // | |
2537 CodeBlob* cb = CodeCache::find_blob(pc); | |
2538 if (cb != NULL) { | |
2539 if (os::is_poll_address(addr)) { | |
2540 address stub = SharedRuntime::get_poll_stub(pc); | |
2541 return Handle_Exception(exceptionInfo, stub); | |
2542 } | |
2543 } | |
2544 { | |
2545 #ifdef _WIN64 | |
2546 // | |
2547 // If it's a legal stack address map the entire region in | |
2548 // | |
2549 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2550 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2551 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
2552 addr = (address)((uintptr_t)addr & | |
2553 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
656 | 2554 os::commit_memory((char *)addr, thread->stack_base() - addr, |
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10405
diff
changeset
|
2555 !ExecMem); |
0 | 2556 return EXCEPTION_CONTINUE_EXECUTION; |
2557 } | |
2558 else | |
2559 #endif | |
2560 { | |
2561 // Null pointer exception. | |
2562 #ifdef _M_IA64 | |
7994 | 2563 // Process implicit null checks in compiled code. Note: Implicit null checks |
2564 // can happen even if "ImplicitNullChecks" is disabled, e.g. in vtable stubs. | |
2565 if (CodeCache::contains((void*) pc_unix_format) && !MacroAssembler::needs_explicit_null_check((intptr_t) addr)) { | |
2566 CodeBlob *cb = CodeCache::find_blob_unsafe(pc_unix_format); | |
2567 // Handle implicit null check in UEP method entry | |
2568 if (cb && (cb->is_frame_complete_at(pc) || | |
2569 (cb->is_nmethod() && ((nmethod *)cb)->inlinecache_check_contains(pc)))) { | |
2570 if (Verbose) { | |
2571 intptr_t *bundle_start = (intptr_t*) ((intptr_t) pc_unix_format & 0xFFFFFFFFFFFFFFF0); | |
2572 tty->print_cr("trap: null_check at " INTPTR_FORMAT " (SIGSEGV)", pc_unix_format); | |
2573 tty->print_cr(" to addr " INTPTR_FORMAT, addr); | |
2574 tty->print_cr(" bundle is " INTPTR_FORMAT " (high), " INTPTR_FORMAT " (low)", | |
2575 *(bundle_start + 1), *bundle_start); | |
0 | 2576 } |
2577 return Handle_Exception(exceptionInfo, | |
7994 | 2578 SharedRuntime::continuation_for_implicit_exception(thread, pc_unix_format, SharedRuntime::IMPLICIT_NULL)); |
0 | 2579 } |
7994 | 2580 } |
2581 | |
2582 // Implicit null checks were processed above. Hence, we should not reach | |
2583 // here in the usual case => die! | |
2584 if (Verbose) tty->print_raw_cr("Access violation, possible null pointer exception"); | |
0 | 2585 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, |
2586 exceptionInfo->ContextRecord); | |
2587 return EXCEPTION_CONTINUE_SEARCH; | |
7994 | 2588 |
2589 #else // !IA64 | |
0 | 2590 |
2591 // Windows 98 reports faulting addresses incorrectly | |
2592 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
2593 !os::win32::is_nt()) { | |
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2594 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2595 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
0 | 2596 } |
2597 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2598 exceptionInfo->ContextRecord); | |
2599 return EXCEPTION_CONTINUE_SEARCH; | |
2600 #endif | |
2601 } | |
2602 } | |
2603 } | |
2604 | |
2605 #ifdef _WIN64 | |
2606 // Special care for fast JNI field accessors. | |
2607 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
2608 // in and the heap gets shrunk before the field access. | |
2609 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2610 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
2611 if (addr != (address)-1) { | |
2612 return Handle_Exception(exceptionInfo, addr); | |
2613 } | |
2614 } | |
2615 #endif | |
2616 | |
2617 // Stack overflow or null pointer exception in native code. | |
2618 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2619 exceptionInfo->ContextRecord); | |
2620 return EXCEPTION_CONTINUE_SEARCH; | |
7994 | 2621 } // /EXCEPTION_ACCESS_VIOLATION |
2622 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
2623 #if defined _M_IA64 | |
2624 else if ((exception_code == EXCEPTION_ILLEGAL_INSTRUCTION || | |
2625 exception_code == EXCEPTION_ILLEGAL_INSTRUCTION_2)) { | |
2626 M37 handle_wrong_method_break(0, NativeJump::HANDLE_WRONG_METHOD, PR0); | |
2627 | |
2628 // Compiled method patched to be non entrant? Following conditions must apply: | |
2629 // 1. must be first instruction in bundle | |
2630 // 2. must be a break instruction with appropriate code | |
2631 if((((uint64_t) pc & 0x0F) == 0) && | |
2632 (((IPF_Bundle*) pc)->get_slot0() == handle_wrong_method_break.bits())) { | |
2633 return Handle_Exception(exceptionInfo, | |
2634 (address)SharedRuntime::get_handle_wrong_method_stub()); | |
2635 } | |
2636 } // /EXCEPTION_ILLEGAL_INSTRUCTION | |
2637 #endif | |
2638 | |
0 | 2639 |
2640 if (in_java) { | |
2641 switch (exception_code) { | |
2642 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
2643 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
2644 | |
2645 case EXCEPTION_INT_OVERFLOW: | |
2646 return Handle_IDiv_Exception(exceptionInfo); | |
2647 | |
2648 } // switch | |
2649 } | |
2650 #ifndef _WIN64 | |
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2651 if (((thread->thread_state() == _thread_in_Java) || |
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2652 (thread->thread_state() == _thread_in_native)) && |
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2653 exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION) |
0 | 2654 { |
2655 LONG result=Handle_FLT_Exception(exceptionInfo); | |
2656 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
2657 } | |
2658 #endif //_WIN64 | |
2659 } | |
2660 | |
2661 if (exception_code != EXCEPTION_BREAKPOINT) { | |
2662 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2663 exceptionInfo->ContextRecord); | |
2664 } | |
2665 return EXCEPTION_CONTINUE_SEARCH; | |
2666 } | |
2667 | |
2668 #ifndef _WIN64 | |
2669 // Special care for fast JNI accessors. | |
2670 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
2671 // the heap gets shrunk before the field access. | |
2672 // Need to install our own structured exception handler since native code may | |
2673 // install its own. | |
2674 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2675 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2676 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2677 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
2678 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
2679 if (addr != (address)-1) { | |
2680 return Handle_Exception(exceptionInfo, addr); | |
2681 } | |
2682 } | |
2683 return EXCEPTION_CONTINUE_SEARCH; | |
2684 } | |
2685 | |
2686 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
2687 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
2688 __try { \ | |
2689 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
2690 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
2691 } \ | |
2692 return 0; \ | |
2693 } | |
2694 | |
2695 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
2696 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
2697 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
2698 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
2699 DEFINE_FAST_GETFIELD(jint, int, Int) | |
2700 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
2701 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
2702 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
2703 | |
2704 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
2705 switch (type) { | |
2706 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
2707 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
2708 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
2709 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
2710 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
2711 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
2712 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
2713 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
2714 default: ShouldNotReachHere(); | |
2715 } | |
2716 return (address)-1; | |
2717 } | |
2718 #endif | |
2719 | |
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2720 void os::win32::call_test_func_with_wrapper(void (*funcPtr)(void)) { |
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8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
2721 // Install a win32 structured exception handler around the test |
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
2722 // function call so the VM can generate an error dump if needed. |
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8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
2723 __try { |
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8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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changeset
|
2724 (*funcPtr)(); |
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8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
2725 } __except(topLevelExceptionFilter( |
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8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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|
2726 (_EXCEPTION_POINTERS*)_exception_info())) { |
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
dcubed
parents:
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changeset
|
2727 // Nothing to do. |
59b052799158
8015884: runThese crashed with SIGSEGV, hs_err has an error instead of stacktrace
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parents:
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diff
changeset
|
2728 } |
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parents:
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diff
changeset
|
2729 } |
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|
2730 |
0 | 2731 // Virtual Memory |
2732 | |
2733 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
2734 int os::vm_allocation_granularity() { | |
2735 return os::win32::vm_allocation_granularity(); | |
2736 } | |
2737 | |
2738 // Windows large page support is available on Windows 2003. In order to use | |
2739 // large page memory, the administrator must first assign additional privilege | |
2740 // to the user: | |
2741 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
2742 // + select Local Policies -> User Rights Assignment | |
2743 // + double click "Lock pages in memory", add users and/or groups | |
2744 // + reboot | |
2745 // Note the above steps are needed for administrator as well, as administrators | |
2746 // by default do not have the privilege to lock pages in memory. | |
2747 // | |
2748 // Note about Windows 2003: although the API supports committing large page | |
2749 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
2750 // scenario, I found through experiment it only uses large page if the entire | |
2751 // memory region is reserved and committed in a single VirtualAlloc() call. | |
2752 // This makes Windows large page support more or less like Solaris ISM, in | |
2753 // that the entire heap must be committed upfront. This probably will change | |
2754 // in the future, if so the code below needs to be revisited. | |
2755 | |
2756 #ifndef MEM_LARGE_PAGES | |
2757 #define MEM_LARGE_PAGES 0x20000000 | |
2758 #endif | |
2759 | |
2760 static HANDLE _hProcess; | |
2761 static HANDLE _hToken; | |
2762 | |
3885 | 2763 // Container for NUMA node list info |
2764 class NUMANodeListHolder { | |
2765 private: | |
2766 int *_numa_used_node_list; // allocated below | |
2767 int _numa_used_node_count; | |
2768 | |
2769 void free_node_list() { | |
2770 if (_numa_used_node_list != NULL) { | |
6197 | 2771 FREE_C_HEAP_ARRAY(int, _numa_used_node_list, mtInternal); |
3885 | 2772 } |
2773 } | |
2774 | |
2775 public: | |
2776 NUMANodeListHolder() { | |
2777 _numa_used_node_count = 0; | |
2778 _numa_used_node_list = NULL; | |
2779 // do rest of initialization in build routine (after function pointers are set up) | |
2780 } | |
2781 | |
2782 ~NUMANodeListHolder() { | |
2783 free_node_list(); | |
2784 } | |
2785 | |
2786 bool build() { | |
2787 DWORD_PTR proc_aff_mask; | |
2788 DWORD_PTR sys_aff_mask; | |
2789 if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false; | |
2790 ULONG highest_node_number; | |
2791 if (!os::Kernel32Dll::GetNumaHighestNodeNumber(&highest_node_number)) return false; | |
2792 free_node_list(); | |
6197 | 2793 _numa_used_node_list = NEW_C_HEAP_ARRAY(int, highest_node_number + 1, mtInternal); |
3885 | 2794 for (unsigned int i = 0; i <= highest_node_number; i++) { |
2795 ULONGLONG proc_mask_numa_node; | |
2796 if (!os::Kernel32Dll::GetNumaNodeProcessorMask(i, &proc_mask_numa_node)) return false; | |
2797 if ((proc_aff_mask & proc_mask_numa_node)!=0) { | |
2798 _numa_used_node_list[_numa_used_node_count++] = i; | |
2799 } | |
2800 } | |
2801 return (_numa_used_node_count > 1); | |
2802 } | |
2803 | |
2804 int get_count() {return _numa_used_node_count;} | |
2805 int get_node_list_entry(int n) { | |
2806 // for indexes out of range, returns -1 | |
2807 return (n < _numa_used_node_count ? _numa_used_node_list[n] : -1); | |
2808 } | |
2809 | |
2810 } numa_node_list_holder; | |
2811 | |
2812 | |
2813 | |
0 | 2814 static size_t _large_page_size = 0; |
2815 | |
2816 static bool resolve_functions_for_large_page_init() { | |
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2817 return os::Kernel32Dll::GetLargePageMinimumAvailable() && |
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2818 os::Advapi32Dll::AdvapiAvailable(); |
0 | 2819 } |
2820 | |
2821 static bool request_lock_memory_privilege() { | |
2822 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
2823 os::current_process_id()); | |
2824 | |
2825 LUID luid; | |
2826 if (_hProcess != NULL && | |
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2827 os::Advapi32Dll::OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && |
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2828 os::Advapi32Dll::LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { |
0 | 2829 |
2830 TOKEN_PRIVILEGES tp; | |
2831 tp.PrivilegeCount = 1; | |
2832 tp.Privileges[0].Luid = luid; | |
2833 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
2834 | |
2835 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
2836 // privilege. Check GetLastError() too. See MSDN document. | |
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2837 if (os::Advapi32Dll::AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && |
0 | 2838 (GetLastError() == ERROR_SUCCESS)) { |
2839 return true; | |
2840 } | |
2841 } | |
2842 | |
2843 return false; | |
2844 } | |
2845 | |
2846 static void cleanup_after_large_page_init() { | |
2847 if (_hProcess) CloseHandle(_hProcess); | |
2848 _hProcess = NULL; | |
2849 if (_hToken) CloseHandle(_hToken); | |
2850 _hToken = NULL; | |
2851 } | |
2852 | |
3885 | 2853 static bool numa_interleaving_init() { |
2854 bool success = false; | |
2855 bool use_numa_interleaving_specified = !FLAG_IS_DEFAULT(UseNUMAInterleaving); | |
2856 | |
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2857 // print a warning if UseNUMAInterleaving flag is specified on command line |
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2858 bool warn_on_failure = use_numa_interleaving_specified; |
3885 | 2859 # define WARN(msg) if (warn_on_failure) { warning(msg); } |
2860 | |
2861 // NUMAInterleaveGranularity cannot be less than vm_allocation_granularity (or _large_page_size if using large pages) | |
2862 size_t min_interleave_granularity = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
2863 NUMAInterleaveGranularity = align_size_up(NUMAInterleaveGranularity, min_interleave_granularity); | |
2864 | |
2865 if (os::Kernel32Dll::NumaCallsAvailable()) { | |
2866 if (numa_node_list_holder.build()) { | |
2867 if (PrintMiscellaneous && Verbose) { | |
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2868 tty->print("NUMA UsedNodeCount=%d, namely ", numa_node_list_holder.get_count()); |
3885 | 2869 for (int i = 0; i < numa_node_list_holder.get_count(); i++) { |
2870 tty->print("%d ", numa_node_list_holder.get_node_list_entry(i)); | |
2871 } | |
2872 tty->print("\n"); | |
2873 } | |
2874 success = true; | |
2875 } else { | |
2876 WARN("Process does not cover multiple NUMA nodes."); | |
2877 } | |
2878 } else { | |
2879 WARN("NUMA Interleaving is not supported by the operating system."); | |
2880 } | |
2881 if (!success) { | |
2882 if (use_numa_interleaving_specified) WARN("...Ignoring UseNUMAInterleaving flag."); | |
2883 } | |
2884 return success; | |
2885 #undef WARN | |
2886 } | |
2887 | |
2888 // this routine is used whenever we need to reserve a contiguous VA range | |
2889 // but we need to make separate VirtualAlloc calls for each piece of the range | |
2890 // Reasons for doing this: | |
2891 // * UseLargePagesIndividualAllocation was set (normally only needed on WS2003 but possible to be set otherwise) | |
2892 // * UseNUMAInterleaving requires a separate node for each piece | |
2893 static char* allocate_pages_individually(size_t bytes, char* addr, DWORD flags, DWORD prot, | |
2894 bool should_inject_error=false) { | |
2895 char * p_buf; | |
2896 // note: at setup time we guaranteed that NUMAInterleaveGranularity was aligned up to a page size | |
2897 size_t page_size = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
2898 size_t chunk_size = UseNUMAInterleaving ? NUMAInterleaveGranularity : page_size; | |
2899 | |
2900 // first reserve enough address space in advance since we want to be | |
2901 // able to break a single contiguous virtual address range into multiple | |
2902 // large page commits but WS2003 does not allow reserving large page space | |
2903 // so we just use 4K pages for reserve, this gives us a legal contiguous | |
2904 // address space. then we will deallocate that reservation, and re alloc | |
2905 // using large pages | |
2906 const size_t size_of_reserve = bytes + chunk_size; | |
2907 if (bytes > size_of_reserve) { | |
2908 // Overflowed. | |
2909 return NULL; | |
2910 } | |
2911 p_buf = (char *) VirtualAlloc(addr, | |
2912 size_of_reserve, // size of Reserve | |
2913 MEM_RESERVE, | |
2914 PAGE_READWRITE); | |
2915 // If reservation failed, return NULL | |
2916 if (p_buf == NULL) return NULL; | |
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2917 MemTracker::record_virtual_memory_reserve((address)p_buf, size_of_reserve, mtNone, CALLER_PC); |
3885 | 2918 os::release_memory(p_buf, bytes + chunk_size); |
2919 | |
2920 // we still need to round up to a page boundary (in case we are using large pages) | |
2921 // but not to a chunk boundary (in case InterleavingGranularity doesn't align with page size) | |
2922 // instead we handle this in the bytes_to_rq computation below | |
2923 p_buf = (char *) align_size_up((size_t)p_buf, page_size); | |
2924 | |
2925 // now go through and allocate one chunk at a time until all bytes are | |
2926 // allocated | |
2927 size_t bytes_remaining = bytes; | |
2928 // An overflow of align_size_up() would have been caught above | |
2929 // in the calculation of size_of_reserve. | |
2930 char * next_alloc_addr = p_buf; | |
2931 HANDLE hProc = GetCurrentProcess(); | |
2932 | |
2933 #ifdef ASSERT | |
2934 // Variable for the failure injection | |
2935 long ran_num = os::random(); | |
2936 size_t fail_after = ran_num % bytes; | |
2937 #endif | |
2938 | |
2939 int count=0; | |
2940 while (bytes_remaining) { | |
2941 // select bytes_to_rq to get to the next chunk_size boundary | |
2942 | |
2943 size_t bytes_to_rq = MIN2(bytes_remaining, chunk_size - ((size_t)next_alloc_addr % chunk_size)); | |
2944 // Note allocate and commit | |
2945 char * p_new; | |
2946 | |
2947 #ifdef ASSERT | |
2948 bool inject_error_now = should_inject_error && (bytes_remaining <= fail_after); | |
2949 #else | |
2950 const bool inject_error_now = false; | |
2951 #endif | |
2952 | |
2953 if (inject_error_now) { | |
2954 p_new = NULL; | |
2955 } else { | |
2956 if (!UseNUMAInterleaving) { | |
2957 p_new = (char *) VirtualAlloc(next_alloc_addr, | |
2958 bytes_to_rq, | |
2959 flags, | |
2960 prot); | |
2961 } else { | |
2962 // get the next node to use from the used_node_list | |
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2963 assert(numa_node_list_holder.get_count() > 0, "Multiple NUMA nodes expected"); |
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2964 DWORD node = numa_node_list_holder.get_node_list_entry(count % numa_node_list_holder.get_count()); |
3885 | 2965 p_new = (char *)os::Kernel32Dll::VirtualAllocExNuma(hProc, |
2966 next_alloc_addr, | |
2967 bytes_to_rq, | |
2968 flags, | |
2969 prot, | |
2970 node); | |
2971 } | |
2972 } | |
2973 | |
2974 if (p_new == NULL) { | |
2975 // Free any allocated pages | |
2976 if (next_alloc_addr > p_buf) { | |
2977 // Some memory was committed so release it. | |
2978 size_t bytes_to_release = bytes - bytes_remaining; | |
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2979 // NMT has yet to record any individual blocks, so it |
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2980 // need to create a dummy 'reserve' record to match |
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2981 // the release. |
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2982 MemTracker::record_virtual_memory_reserve((address)p_buf, |
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2983 bytes_to_release, mtNone, CALLER_PC); |
3885 | 2984 os::release_memory(p_buf, bytes_to_release); |
2985 } | |
2986 #ifdef ASSERT | |
2987 if (should_inject_error) { | |
2988 if (TracePageSizes && Verbose) { | |
2989 tty->print_cr("Reserving pages individually failed."); | |
2990 } | |
2991 } | |
2992 #endif | |
2993 return NULL; | |
2994 } | |
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2995 |
3885 | 2996 bytes_remaining -= bytes_to_rq; |
2997 next_alloc_addr += bytes_to_rq; | |
2998 count++; | |
2999 } | |
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3000 // Although the memory is allocated individually, it is returned as one. |
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3001 // NMT records it as one block. |
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3002 address pc = CALLER_PC; |
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3003 if ((flags & MEM_COMMIT) != 0) { |
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3004 MemTracker::record_virtual_memory_reserve_and_commit((address)p_buf, bytes, mtNone, pc); |
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3005 } else { |
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3006 MemTracker::record_virtual_memory_reserve((address)p_buf, bytes, mtNone, pc); |
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3007 } |
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3008 |
3885 | 3009 // made it this far, success |
3010 return p_buf; | |
3011 } | |
3012 | |
3013 | |
3014 | |
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3015 void os::large_page_init() { |
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3016 if (!UseLargePages) return; |
0 | 3017 |
3018 // print a warning if any large page related flag is specified on command line | |
3019 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
3020 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
3021 bool success = false; | |
3022 | |
3023 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
3024 if (resolve_functions_for_large_page_init()) { | |
3025 if (request_lock_memory_privilege()) { | |
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3026 size_t s = os::Kernel32Dll::GetLargePageMinimum(); |
0 | 3027 if (s) { |
3028 #if defined(IA32) || defined(AMD64) | |
3029 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
3030 WARN("JVM cannot use large pages bigger than 4mb."); | |
3031 } else { | |
3032 #endif | |
3033 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
3034 _large_page_size = LargePageSizeInBytes; | |
3035 } else { | |
3036 _large_page_size = s; | |
3037 } | |
3038 success = true; | |
3039 #if defined(IA32) || defined(AMD64) | |
3040 } | |
3041 #endif | |
3042 } else { | |
3043 WARN("Large page is not supported by the processor."); | |
3044 } | |
3045 } else { | |
3046 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
3047 } | |
3048 } else { | |
3049 WARN("Large page is not supported by the operating system."); | |
3050 } | |
3051 #undef WARN | |
3052 | |
3053 const size_t default_page_size = (size_t) vm_page_size(); | |
3054 if (success && _large_page_size > default_page_size) { | |
3055 _page_sizes[0] = _large_page_size; | |
3056 _page_sizes[1] = default_page_size; | |
3057 _page_sizes[2] = 0; | |
3058 } | |
3059 | |
3060 cleanup_after_large_page_init(); | |
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3061 UseLargePages = success; |
0 | 3062 } |
3063 | |
3064 // On win32, one cannot release just a part of reserved memory, it's an | |
3065 // all or nothing deal. When we split a reservation, we must break the | |
3066 // reservation into two reservations. | |
6197 | 3067 void os::pd_split_reserved_memory(char *base, size_t size, size_t split, |
0 | 3068 bool realloc) { |
3069 if (size > 0) { | |
3070 release_memory(base, size); | |
3071 if (realloc) { | |
3072 reserve_memory(split, base); | |
3073 } | |
3074 if (size != split) { | |
3075 reserve_memory(size - split, base + split); | |
3076 } | |
3077 } | |
3078 } | |
3079 | |
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3080 // Multiple threads can race in this code but it's not possible to unmap small sections of |
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3081 // virtual space to get requested alignment, like posix-like os's. |
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3082 // Windows prevents multiple thread from remapping over each other so this loop is thread-safe. |
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3083 char* os::reserve_memory_aligned(size_t size, size_t alignment) { |
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3084 assert((alignment & (os::vm_allocation_granularity() - 1)) == 0, |
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3085 "Alignment must be a multiple of allocation granularity (page size)"); |
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3086 assert((size & (alignment -1)) == 0, "size must be 'alignment' aligned"); |
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3087 |
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3088 size_t extra_size = size + alignment; |
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3089 assert(extra_size >= size, "overflow, size is too large to allow alignment"); |
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3090 |
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3091 char* aligned_base = NULL; |
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3092 |
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3093 do { |
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3094 char* extra_base = os::reserve_memory(extra_size, NULL, alignment); |
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7206
diff
changeset
|
3095 if (extra_base == NULL) { |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3096 return NULL; |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3097 } |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3098 // Do manual alignment |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3099 aligned_base = (char*) align_size_up((uintptr_t) extra_base, alignment); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3100 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3101 os::release_memory(extra_base, extra_size); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3102 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3103 aligned_base = os::reserve_memory(size, aligned_base); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3104 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3105 } while (aligned_base == NULL); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3106 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3107 return aligned_base; |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3108 } |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3109 |
6197 | 3110 char* os::pd_reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { |
0 | 3111 assert((size_t)addr % os::vm_allocation_granularity() == 0, |
3112 "reserve alignment"); | |
3113 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
3885 | 3114 char* res; |
3115 // note that if UseLargePages is on, all the areas that require interleaving | |
3116 // will go thru reserve_memory_special rather than thru here. | |
3117 bool use_individual = (UseNUMAInterleaving && !UseLargePages); | |
3118 if (!use_individual) { | |
3119 res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); | |
3120 } else { | |
3121 elapsedTimer reserveTimer; | |
3122 if( Verbose && PrintMiscellaneous ) reserveTimer.start(); | |
3123 // in numa interleaving, we have to allocate pages individually | |
3124 // (well really chunks of NUMAInterleaveGranularity size) | |
3125 res = allocate_pages_individually(bytes, addr, MEM_RESERVE, PAGE_READWRITE); | |
3126 if (res == NULL) { | |
3127 warning("NUMA page allocation failed"); | |
3128 } | |
3129 if( Verbose && PrintMiscellaneous ) { | |
3130 reserveTimer.stop(); | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
3131 tty->print_cr("reserve_memory of %Ix bytes took " JLONG_FORMAT " ms (" JLONG_FORMAT " ticks)", bytes, |
3885 | 3132 reserveTimer.milliseconds(), reserveTimer.ticks()); |
3133 } | |
3134 } | |
0 | 3135 assert(res == NULL || addr == NULL || addr == res, |
3136 "Unexpected address from reserve."); | |
3885 | 3137 |
0 | 3138 return res; |
3139 } | |
3140 | |
3141 // Reserve memory at an arbitrary address, only if that area is | |
3142 // available (and not reserved for something else). | |
6197 | 3143 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
0 | 3144 // Windows os::reserve_memory() fails of the requested address range is |
3145 // not avilable. | |
3146 return reserve_memory(bytes, requested_addr); | |
3147 } | |
3148 | |
3149 size_t os::large_page_size() { | |
3150 return _large_page_size; | |
3151 } | |
3152 | |
3153 bool os::can_commit_large_page_memory() { | |
3154 // Windows only uses large page memory when the entire region is reserved | |
3155 // and committed in a single VirtualAlloc() call. This may change in the | |
3156 // future, but with Windows 2003 it's not possible to commit on demand. | |
3157 return false; | |
3158 } | |
3159 | |
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3160 bool os::can_execute_large_page_memory() { |
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3161 return true; |
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3162 } |
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3163 |
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3164 char* os::reserve_memory_special(size_t bytes, size_t alignment, char* addr, bool exec) { |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3165 assert(UseLargePages, "only for large pages"); |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3166 |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3167 if (!is_size_aligned(bytes, os::large_page_size()) || alignment > os::large_page_size()) { |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3168 return NULL; // Fallback to small pages. |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3169 } |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3170 |
717 | 3171 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
3885 | 3172 const DWORD flags = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
3173 | |
3174 // with large pages, there are two cases where we need to use Individual Allocation | |
3175 // 1) the UseLargePagesIndividualAllocation flag is set (set by default on WS2003) | |
3176 // 2) NUMA Interleaving is enabled, in which case we use a different node for each page | |
3177 if (UseLargePagesIndividualAllocation || UseNUMAInterleaving) { | |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3178 if (TracePageSizes && Verbose) { |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3179 tty->print_cr("Reserving large pages individually."); |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3180 } |
3885 | 3181 char * p_buf = allocate_pages_individually(bytes, addr, flags, prot, LargePagesIndividualAllocationInjectError); |
3182 if (p_buf == NULL) { | |
3183 // give an appropriate warning message | |
3184 if (UseNUMAInterleaving) { | |
3185 warning("NUMA large page allocation failed, UseLargePages flag ignored"); | |
3186 } | |
3187 if (UseLargePagesIndividualAllocation) { | |
3188 warning("Individually allocated large pages failed, " | |
3189 "use -XX:-UseLargePagesIndividualAllocation to turn off"); | |
3190 } | |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3191 return NULL; |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3192 } |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3193 |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3194 return p_buf; |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3195 |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3196 } else { |
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3197 if (TracePageSizes && Verbose) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3198 tty->print_cr("Reserving large pages in a single large chunk."); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3199 } |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3200 // normal policy just allocate it all at once |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3201 DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3202 char * res = (char *)VirtualAlloc(addr, bytes, flag, prot); |
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3203 if (res != NULL) { |
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3204 address pc = CALLER_PC; |
10986
1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
zgu
parents:
10969
diff
changeset
|
3205 MemTracker::record_virtual_memory_reserve_and_commit((address)res, bytes, mtNone, pc); |
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3206 } |
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3207 |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3208 return res; |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3209 } |
0 | 3210 } |
3211 | |
3212 bool os::release_memory_special(char* base, size_t bytes) { | |
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3213 assert(base != NULL, "Sanity check"); |
0 | 3214 return release_memory(base, bytes); |
3215 } | |
3216 | |
3217 void os::print_statistics() { | |
3218 } | |
3219 | |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3220 static void warn_fail_commit_memory(char* addr, size_t bytes, bool exec) { |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3221 int err = os::get_last_error(); |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3222 char buf[256]; |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3223 size_t buf_len = os::lasterror(buf, sizeof(buf)); |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3224 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3225 ", %d) failed; error='%s' (DOS error/errno=%d)", addr, bytes, |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3226 exec, buf_len != 0 ? buf : "<no_error_string>", err); |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3227 } |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3228 |
6197 | 3229 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) { |
0 | 3230 if (bytes == 0) { |
3231 // Don't bother the OS with noops. | |
3232 return true; | |
3233 } | |
3234 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
3235 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
3236 // Don't attempt to print anything if the OS call fails. We're | |
3237 // probably low on resources, so the print itself may cause crashes. | |
3885 | 3238 |
3239 // unless we have NUMAInterleaving enabled, the range of a commit | |
3240 // is always within a reserve covered by a single VirtualAlloc | |
3241 // in that case we can just do a single commit for the requested size | |
3242 if (!UseNUMAInterleaving) { | |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3243 if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) { |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3244 NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);) |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3245 return false; |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3246 } |
3885 | 3247 if (exec) { |
3248 DWORD oldprot; | |
3249 // Windows doc says to use VirtualProtect to get execute permissions | |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3250 if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) { |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3251 NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);) |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3252 return false; |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3253 } |
3885 | 3254 } |
3255 return true; | |
656 | 3256 } else { |
3885 | 3257 |
3258 // when NUMAInterleaving is enabled, the commit might cover a range that | |
3259 // came from multiple VirtualAlloc reserves (using allocate_pages_individually). | |
3260 // VirtualQuery can help us determine that. The RegionSize that VirtualQuery | |
3261 // returns represents the number of bytes that can be committed in one step. | |
3262 size_t bytes_remaining = bytes; | |
3263 char * next_alloc_addr = addr; | |
3264 while (bytes_remaining > 0) { | |
3265 MEMORY_BASIC_INFORMATION alloc_info; | |
3266 VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info)); | |
3267 size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize); | |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3268 if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT, |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3269 PAGE_READWRITE) == NULL) { |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3270 NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq, |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3271 exec);) |
3885 | 3272 return false; |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3273 } |
3885 | 3274 if (exec) { |
3275 DWORD oldprot; | |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3276 if (!VirtualProtect(next_alloc_addr, bytes_to_rq, |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3277 PAGE_EXECUTE_READWRITE, &oldprot)) { |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3278 NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq, |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3279 exec);) |
3885 | 3280 return false; |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3281 } |
3885 | 3282 } |
3283 bytes_remaining -= bytes_to_rq; | |
3284 next_alloc_addr += bytes_to_rq; | |
3285 } | |
3286 } | |
3287 // if we made it this far, return true | |
3288 return true; | |
0 | 3289 } |
3290 | |
6197 | 3291 bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint, |
656 | 3292 bool exec) { |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3293 // alignment_hint is ignored on this OS |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3294 return pd_commit_memory(addr, size, exec); |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3295 } |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3296 |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3297 void os::pd_commit_memory_or_exit(char* addr, size_t size, bool exec, |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3298 const char* mesg) { |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3299 assert(mesg != NULL, "mesg must be specified"); |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3300 if (!pd_commit_memory(addr, size, exec)) { |
a837fa3d3f86
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|
3301 warn_fail_commit_memory(addr, size, exec); |
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|
3302 vm_exit_out_of_memory(size, OOM_MMAP_ERROR, mesg); |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3303 } |
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|
3304 } |
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|
3305 |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3306 void os::pd_commit_memory_or_exit(char* addr, size_t size, |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3307 size_t alignment_hint, bool exec, |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
3308 const char* mesg) { |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3309 // alignment_hint is ignored on this OS |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3310 pd_commit_memory_or_exit(addr, size, exec, mesg); |
0 | 3311 } |
3312 | |
6197 | 3313 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
0 | 3314 if (bytes == 0) { |
3315 // Don't bother the OS with noops. | |
3316 return true; | |
3317 } | |
3318 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
3319 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
6197 | 3320 return (VirtualFree(addr, bytes, MEM_DECOMMIT) != 0); |
3321 } | |
3322 | |
3323 bool os::pd_release_memory(char* addr, size_t bytes) { | |
0 | 3324 return VirtualFree(addr, 0, MEM_RELEASE) != 0; |
3325 } | |
3326 | |
6197 | 3327 bool os::pd_create_stack_guard_pages(char* addr, size_t size) { |
10969
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|
3328 return os::commit_memory(addr, size, !ExecMem); |
1320
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6929067: Stack guard pages should be removed when thread is detached
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|
3329 } |
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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|
3330 |
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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|
3331 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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|
3332 return os::uncommit_memory(addr, size); |
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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|
3333 } |
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|
3334 |
237
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|
3335 // Set protections specified |
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3336 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
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|
3337 bool is_committed) { |
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|
3338 unsigned int p = 0; |
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|
3339 switch (prot) { |
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3340 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
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3341 case MEM_PROT_READ: p = PAGE_READONLY; break; |
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3342 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
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3343 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
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3344 default: |
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|
3345 ShouldNotReachHere(); |
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|
3346 } |
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3347 |
0 | 3348 DWORD old_status; |
237
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3349 |
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3350 // Strange enough, but on Win32 one can change protection only for committed |
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3351 // memory, not a big deal anyway, as bytes less or equal than 64K |
10969
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|
3352 if (!is_committed) { |
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|
3353 commit_memory_or_exit(addr, bytes, prot == MEM_PROT_RWX, |
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|
3354 "cannot commit protection page"); |
237
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|
3355 } |
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|
3356 // One cannot use os::guard_memory() here, as on Win32 guard page |
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3357 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
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3358 // |
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3359 // Pages in the region become guard pages. Any attempt to access a guard page |
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3360 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
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3361 // the guard page status. Guard pages thus act as a one-time access alarm. |
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3362 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
0 | 3363 } |
3364 | |
3365 bool os::guard_memory(char* addr, size_t bytes) { | |
3366 DWORD old_status; | |
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
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467
diff
changeset
|
3367 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
0 | 3368 } |
3369 | |
3370 bool os::unguard_memory(char* addr, size_t bytes) { | |
3371 DWORD old_status; | |
477
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|
3372 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
0 | 3373 } |
3374 | |
6197 | 3375 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } |
3376 void os::pd_free_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
0 | 3377 void os::numa_make_global(char *addr, size_t bytes) { } |
141 | 3378 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
0 | 3379 bool os::numa_topology_changed() { return false; } |
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
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|
3380 size_t os::numa_get_groups_num() { return MAX2(numa_node_list_holder.get_count(), 1); } |
0 | 3381 int os::numa_get_group_id() { return 0; } |
3382 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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|
3383 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3384 // Provide an answer for UMA systems |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3385 ids[0] = 0; |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3386 return 1; |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3387 } else { |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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diff
changeset
|
3388 // check for size bigger than actual groups_num |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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diff
changeset
|
3389 size = MIN2(size, numa_get_groups_num()); |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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|
3390 for (int i = 0; i < (int)size; i++) { |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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diff
changeset
|
3391 ids[i] = numa_node_list_holder.get_node_list_entry(i); |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3392 } |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3393 return size; |
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|
3394 } |
0 | 3395 } |
3396 | |
3397 bool os::get_page_info(char *start, page_info* info) { | |
3398 return false; | |
3399 } | |
3400 | |
3401 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
3402 return end; | |
3403 } | |
3404 | |
3405 char* os::non_memory_address_word() { | |
3406 // Must never look like an address returned by reserve_memory, | |
3407 // even in its subfields (as defined by the CPU immediate fields, | |
3408 // if the CPU splits constants across multiple instructions). | |
3409 return (char*)-1; | |
3410 } | |
3411 | |
3412 #define MAX_ERROR_COUNT 100 | |
3413 #define SYS_THREAD_ERROR 0xffffffffUL | |
3414 | |
3415 void os::pd_start_thread(Thread* thread) { | |
3416 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
3417 // Returns previous suspend state: | |
3418 // 0: Thread was not suspended | |
3419 // 1: Thread is running now | |
3420 // >1: Thread is still suspended. | |
3421 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
3422 } | |
3423 | |
10271
f9be75d21404
8012902: remove use of global operator new - take 2
minqi
parents:
10202
diff
changeset
|
3424 class HighResolutionInterval : public CHeapObj<mtThread> { |
0 | 3425 // The default timer resolution seems to be 10 milliseconds. |
3426 // (Where is this written down?) | |
3427 // If someone wants to sleep for only a fraction of the default, | |
3428 // then we set the timer resolution down to 1 millisecond for | |
3429 // the duration of their interval. | |
3430 // We carefully set the resolution back, since otherwise we | |
3431 // seem to incur an overhead (3%?) that we don't need. | |
3432 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
3433 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
3434 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
3435 // timeBeginPeriod() if the relative error exceeded some threshold. | |
3436 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
3437 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
3438 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
3439 // resolution timers running. | |
3440 private: | |
3441 jlong resolution; | |
3442 public: | |
3443 HighResolutionInterval(jlong ms) { | |
3444 resolution = ms % 10L; | |
3445 if (resolution != 0) { | |
3446 MMRESULT result = timeBeginPeriod(1L); | |
3447 } | |
3448 } | |
3449 ~HighResolutionInterval() { | |
3450 if (resolution != 0) { | |
3451 MMRESULT result = timeEndPeriod(1L); | |
3452 } | |
3453 resolution = 0L; | |
3454 } | |
3455 }; | |
3456 | |
3457 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
3458 jlong limit = (jlong) MAXDWORD; | |
3459 | |
3460 while(ms > limit) { | |
3461 int res; | |
3462 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
3463 return res; | |
3464 ms -= limit; | |
3465 } | |
3466 | |
3467 assert(thread == Thread::current(), "thread consistency check"); | |
3468 OSThread* osthread = thread->osthread(); | |
3469 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
3470 int result; | |
3471 if (interruptable) { | |
3472 assert(thread->is_Java_thread(), "must be java thread"); | |
3473 JavaThread *jt = (JavaThread *) thread; | |
3474 ThreadBlockInVM tbivm(jt); | |
3475 | |
3476 jt->set_suspend_equivalent(); | |
3477 // cleared by handle_special_suspend_equivalent_condition() or | |
3478 // java_suspend_self() via check_and_wait_while_suspended() | |
3479 | |
3480 HANDLE events[1]; | |
3481 events[0] = osthread->interrupt_event(); | |
3482 HighResolutionInterval *phri=NULL; | |
3483 if(!ForceTimeHighResolution) | |
3484 phri = new HighResolutionInterval( ms ); | |
3485 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
3486 result = OS_TIMEOUT; | |
3487 } else { | |
3488 ResetEvent(osthread->interrupt_event()); | |
3489 osthread->set_interrupted(false); | |
3490 result = OS_INTRPT; | |
3491 } | |
3492 delete phri; //if it is NULL, harmless | |
3493 | |
3494 // were we externally suspended while we were waiting? | |
3495 jt->check_and_wait_while_suspended(); | |
3496 } else { | |
3497 assert(!thread->is_Java_thread(), "must not be java thread"); | |
3498 Sleep((long) ms); | |
3499 result = OS_TIMEOUT; | |
3500 } | |
3501 return result; | |
3502 } | |
3503 | |
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8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
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|
3504 // |
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
changeset
|
3505 // Short sleep, direct OS call. |
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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|
3506 // |
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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|
3507 // ms = 0, means allow others (if any) to run. |
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
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|
3508 // |
0e6af9b390af
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diff
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|
3509 void os::naked_short_sleep(jlong ms) { |
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
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|
3510 assert(ms < 1000, "Un-interruptable sleep, short time use only"); |
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
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|
3511 Sleep(ms); |
0e6af9b390af
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|
3512 } |
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|
3513 |
0 | 3514 // Sleep forever; naked call to OS-specific sleep; use with CAUTION |
3515 void os::infinite_sleep() { | |
3516 while (true) { // sleep forever ... | |
3517 Sleep(100000); // ... 100 seconds at a time | |
3518 } | |
3519 } | |
3520 | |
3521 typedef BOOL (WINAPI * STTSignature)(void) ; | |
3522 | |
3523 os::YieldResult os::NakedYield() { | |
3524 // Use either SwitchToThread() or Sleep(0) | |
3525 // Consider passing back the return value from SwitchToThread(). | |
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b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
3526 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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|
3527 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
0 | 3528 } else { |
3833
b1cbb0907b36
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|
3529 Sleep(0); |
0 | 3530 } |
3531 return os::YIELD_UNKNOWN ; | |
3532 } | |
3533 | |
3534 void os::yield() { os::NakedYield(); } | |
3535 | |
3536 void os::yield_all(int attempts) { | |
3537 // Yields to all threads, including threads with lower priorities | |
3538 Sleep(1); | |
3539 } | |
3540 | |
3541 // Win32 only gives you access to seven real priorities at a time, | |
3542 // so we compress Java's ten down to seven. It would be better | |
3543 // if we dynamically adjusted relative priorities. | |
3544 | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3545 int os::java_to_os_priority[CriticalPriority + 1] = { |
0 | 3546 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
3547 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
3548 THREAD_PRIORITY_LOWEST, // 2 | |
3549 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
3550 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
3551 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
3552 THREAD_PRIORITY_NORMAL, // 6 | |
3553 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
3554 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
3555 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
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4803
diff
changeset
|
3556 THREAD_PRIORITY_HIGHEST, // 10 MaxPriority |
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
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changeset
|
3557 THREAD_PRIORITY_HIGHEST // 11 CriticalPriority |
0 | 3558 }; |
3559 | |
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
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4803
diff
changeset
|
3560 int prio_policy1[CriticalPriority + 1] = { |
0 | 3561 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
3562 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
3563 THREAD_PRIORITY_LOWEST, // 2 | |
3564 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
3565 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
3566 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
3567 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
3568 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
3569 THREAD_PRIORITY_HIGHEST, // 8 | |
3570 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
4854
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3571 THREAD_PRIORITY_TIME_CRITICAL, // 10 MaxPriority |
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3572 THREAD_PRIORITY_TIME_CRITICAL // 11 CriticalPriority |
0 | 3573 }; |
3574 | |
3575 static int prio_init() { | |
3576 // If ThreadPriorityPolicy is 1, switch tables | |
3577 if (ThreadPriorityPolicy == 1) { | |
3578 int i; | |
4854
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|
3579 for (i = 0; i < CriticalPriority + 1; i++) { |
0 | 3580 os::java_to_os_priority[i] = prio_policy1[i]; |
3581 } | |
3582 } | |
4854
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3583 if (UseCriticalJavaThreadPriority) { |
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3584 os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority] ; |
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3585 } |
0 | 3586 return 0; |
3587 } | |
3588 | |
3589 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
3590 if (!UseThreadPriorities) return OS_OK; | |
3591 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
3592 return ret ? OS_OK : OS_ERR; | |
3593 } | |
3594 | |
3595 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
3596 if ( !UseThreadPriorities ) { | |
3597 *priority_ptr = java_to_os_priority[NormPriority]; | |
3598 return OS_OK; | |
3599 } | |
3600 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
3601 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
3602 assert(false, "GetThreadPriority failed"); | |
3603 return OS_ERR; | |
3604 } | |
3605 *priority_ptr = os_prio; | |
3606 return OS_OK; | |
3607 } | |
3608 | |
3609 | |
3610 // Hint to the underlying OS that a task switch would not be good. | |
3611 // Void return because it's a hint and can fail. | |
3612 void os::hint_no_preempt() {} | |
3613 | |
3614 void os::interrupt(Thread* thread) { | |
3615 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
3616 "possibility of dangling Thread pointer"); | |
3617 | |
3618 OSThread* osthread = thread->osthread(); | |
3619 osthread->set_interrupted(true); | |
3620 // More than one thread can get here with the same value of osthread, | |
3621 // resulting in multiple notifications. We do, however, want the store | |
3622 // to interrupted() to be visible to other threads before we post | |
3623 // the interrupt event. | |
3624 OrderAccess::release(); | |
3625 SetEvent(osthread->interrupt_event()); | |
3626 // For JSR166: unpark after setting status | |
3627 if (thread->is_Java_thread()) | |
3628 ((JavaThread*)thread)->parker()->unpark(); | |
3629 | |
3630 ParkEvent * ev = thread->_ParkEvent ; | |
3631 if (ev != NULL) ev->unpark() ; | |
3632 | |
3633 } | |
3634 | |
3635 | |
3636 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
3637 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
3638 "possibility of dangling Thread pointer"); | |
3639 | |
3640 OSThread* osthread = thread->osthread(); | |
2386
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3641 // There is no synchronization between the setting of the interrupt |
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3642 // and it being cleared here. It is critical - see 6535709 - that |
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3643 // we only clear the interrupt state, and reset the interrupt event, |
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3644 // if we are going to report that we were indeed interrupted - else |
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3645 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
17716
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3646 // depending on the timing. By checking thread interrupt event to see |
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6498581: ThreadInterruptTest3 produces wrong output on Windows
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3647 // if the thread gets real interrupt thus prevent spurious wakeup. |
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|
3648 bool interrupted = osthread->interrupted() && (WaitForSingleObject(osthread->interrupt_event(), 0) == WAIT_OBJECT_0); |
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3649 if (interrupted && clear_interrupted) { |
0 | 3650 osthread->set_interrupted(false); |
3651 ResetEvent(osthread->interrupt_event()); | |
3652 } // Otherwise leave the interrupted state alone | |
3653 | |
3654 return interrupted; | |
3655 } | |
3656 | |
3657 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
3658 ExtendedPC os::get_thread_pc(Thread* thread) { | |
3659 CONTEXT context; | |
3660 context.ContextFlags = CONTEXT_CONTROL; | |
3661 HANDLE handle = thread->osthread()->thread_handle(); | |
3662 #ifdef _M_IA64 | |
3663 assert(0, "Fix get_thread_pc"); | |
3664 return ExtendedPC(NULL); | |
3665 #else | |
3666 if (GetThreadContext(handle, &context)) { | |
3667 #ifdef _M_AMD64 | |
3668 return ExtendedPC((address) context.Rip); | |
3669 #else | |
3670 return ExtendedPC((address) context.Eip); | |
3671 #endif | |
3672 } else { | |
3673 return ExtendedPC(NULL); | |
3674 } | |
3675 #endif | |
3676 } | |
3677 | |
3678 // GetCurrentThreadId() returns DWORD | |
3679 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
3680 | |
3681 static int _initial_pid = 0; | |
3682 | |
3683 int os::current_process_id() | |
3684 { | |
3685 return (_initial_pid ? _initial_pid : _getpid()); | |
3686 } | |
3687 | |
3688 int os::win32::_vm_page_size = 0; | |
3689 int os::win32::_vm_allocation_granularity = 0; | |
3690 int os::win32::_processor_type = 0; | |
3691 // Processor level is not available on non-NT systems, use vm_version instead | |
3692 int os::win32::_processor_level = 0; | |
3693 julong os::win32::_physical_memory = 0; | |
3694 size_t os::win32::_default_stack_size = 0; | |
3695 | |
3696 intx os::win32::_os_thread_limit = 0; | |
3697 volatile intx os::win32::_os_thread_count = 0; | |
3698 | |
3699 bool os::win32::_is_nt = false; | |
389
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3700 bool os::win32::_is_windows_2003 = false; |
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3701 bool os::win32::_is_windows_server = false; |
0 | 3702 |
3703 void os::win32::initialize_system_info() { | |
3704 SYSTEM_INFO si; | |
3705 GetSystemInfo(&si); | |
3706 _vm_page_size = si.dwPageSize; | |
3707 _vm_allocation_granularity = si.dwAllocationGranularity; | |
3708 _processor_type = si.dwProcessorType; | |
3709 _processor_level = si.wProcessorLevel; | |
1123
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6843629: Make current hotspot build part of jdk5 control build
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diff
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|
3710 set_processor_count(si.dwNumberOfProcessors); |
0 | 3711 |
877
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6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
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diff
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|
3712 MEMORYSTATUSEX ms; |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
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|
3713 ms.dwLength = sizeof(ms); |
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|
3714 |
0 | 3715 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
3716 // dwMemoryLoad (% of memory in use) | |
877
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|
3717 GlobalMemoryStatusEx(&ms); |
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|
3718 _physical_memory = ms.ullTotalPhys; |
0 | 3719 |
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changeset
|
3720 OSVERSIONINFOEX oi; |
63d374c54045
7014918: Improve core/minidump handling in Hotspot
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|
3721 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
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2130
diff
changeset
|
3722 GetVersionEx((OSVERSIONINFO*)&oi); |
0 | 3723 switch(oi.dwPlatformId) { |
3724 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
389
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|
3725 case VER_PLATFORM_WIN32_NT: |
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diff
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|
3726 _is_nt = true; |
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|
3727 { |
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|
3728 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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|
3729 if (os_vers == 5002) { |
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|
3730 _is_windows_2003 = true; |
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|
3731 } |
2204
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diff
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|
3732 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
63d374c54045
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|
3733 oi.wProductType == VER_NT_SERVER) { |
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7014918: Improve core/minidump handling in Hotspot
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|
3734 _is_windows_server = true; |
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|
3735 } |
389
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|
3736 } |
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|
3737 break; |
0 | 3738 default: fatal("Unknown platform"); |
3739 } | |
3740 | |
3741 _default_stack_size = os::current_stack_size(); | |
3742 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
3743 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
3744 "stack size not a multiple of page size"); | |
3745 | |
3746 initialize_performance_counter(); | |
3747 | |
3748 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
3749 // known to deadlock the system, if the VM issues to thread operations with | |
3750 // a too high frequency, e.g., such as changing the priorities. | |
3751 // The 6000 seems to work well - no deadlocks has been notices on the test | |
3752 // programs that we have seen experience this problem. | |
3753 if (!os::win32::is_nt()) { | |
3754 StarvationMonitorInterval = 6000; | |
3755 } | |
3756 } | |
3757 | |
3758 | |
3833
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|
3759 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
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|
3760 char path[MAX_PATH]; |
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|
3761 DWORD size; |
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|
3762 DWORD pathLen = (DWORD)sizeof(path); |
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|
3763 HINSTANCE result = NULL; |
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|
3764 |
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|
3765 // only allow library name without path component |
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|
3766 assert(strchr(name, '\\') == NULL, "path not allowed"); |
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|
3767 assert(strchr(name, ':') == NULL, "path not allowed"); |
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|
3768 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
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|
3769 jio_snprintf(ebuf, ebuflen, |
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|
3770 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
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|
3771 return NULL; |
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|
3772 } |
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|
3773 |
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|
3774 // search system directory |
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|
3775 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
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|
3776 strcat(path, "\\"); |
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|
3777 strcat(path, name); |
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|
3778 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
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|
3779 return result; |
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|
3780 } |
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|
3781 } |
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|
3782 |
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|
3783 // try Windows directory |
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|
3784 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
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|
3785 strcat(path, "\\"); |
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|
3786 strcat(path, name); |
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|
3787 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
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|
3788 return result; |
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|
3789 } |
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|
3790 } |
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|
3791 |
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|
3792 jio_snprintf(ebuf, ebuflen, |
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|
3793 "os::win32::load_windows_dll() cannot load %s from system directories.", name); |
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|
3794 return NULL; |
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|
3795 } |
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|
3796 |
0 | 3797 void os::win32::setmode_streams() { |
3798 _setmode(_fileno(stdin), _O_BINARY); | |
3799 _setmode(_fileno(stdout), _O_BINARY); | |
3800 _setmode(_fileno(stderr), _O_BINARY); | |
3801 } | |
3802 | |
3803 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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diff
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|
3804 bool os::is_debugger_attached() { |
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|
3805 return IsDebuggerPresent() ? true : false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2205
diff
changeset
|
3806 } |
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7022037: Pause when exiting if debugger is attached on windows
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parents:
2205
diff
changeset
|
3807 |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
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diff
changeset
|
3808 |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
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diff
changeset
|
3809 void os::wait_for_keypress_at_exit(void) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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diff
changeset
|
3810 if (PauseAtExit) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2205
diff
changeset
|
3811 fprintf(stderr, "Press any key to continue...\n"); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3812 fgetc(stdin); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3813 } |
da091bb67459
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parents:
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diff
changeset
|
3814 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
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diff
changeset
|
3815 |
da091bb67459
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|
3816 |
0 | 3817 int os::message_box(const char* title, const char* message) { |
3818 int result = MessageBox(NULL, message, title, | |
3819 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
3820 return result == IDYES; | |
3821 } | |
3822 | |
3823 int os::allocate_thread_local_storage() { | |
3824 return TlsAlloc(); | |
3825 } | |
3826 | |
3827 | |
3828 void os::free_thread_local_storage(int index) { | |
3829 TlsFree(index); | |
3830 } | |
3831 | |
3832 | |
3833 void os::thread_local_storage_at_put(int index, void* value) { | |
3834 TlsSetValue(index, value); | |
3835 assert(thread_local_storage_at(index) == value, "Just checking"); | |
3836 } | |
3837 | |
3838 | |
3839 void* os::thread_local_storage_at(int index) { | |
3840 return TlsGetValue(index); | |
3841 } | |
3842 | |
3843 | |
3844 #ifndef PRODUCT | |
3845 #ifndef _WIN64 | |
3846 // Helpers to check whether NX protection is enabled | |
3847 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
3848 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
3849 pex->ExceptionRecord->NumberParameters > 0 && | |
3850 pex->ExceptionRecord->ExceptionInformation[0] == | |
3851 EXCEPTION_INFO_EXEC_VIOLATION) { | |
3852 return EXCEPTION_EXECUTE_HANDLER; | |
3853 } | |
3854 return EXCEPTION_CONTINUE_SEARCH; | |
3855 } | |
3856 | |
3857 void nx_check_protection() { | |
3858 // If NX is enabled we'll get an exception calling into code on the stack | |
3859 char code[] = { (char)0xC3 }; // ret | |
3860 void *code_ptr = (void *)code; | |
3861 __try { | |
3862 __asm call code_ptr | |
3863 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
3864 tty->print_raw_cr("NX protection detected."); | |
3865 } | |
3866 } | |
3867 #endif // _WIN64 | |
3868 #endif // PRODUCT | |
3869 | |
3870 // this is called _before_ the global arguments have been parsed | |
3871 void os::init(void) { | |
3872 _initial_pid = _getpid(); | |
3873 | |
3874 init_random(1234567); | |
3875 | |
3876 win32::initialize_system_info(); | |
3877 win32::setmode_streams(); | |
3878 init_page_sizes((size_t) win32::vm_page_size()); | |
3879 | |
3880 // For better scalability on MP systems (must be called after initialize_system_info) | |
3881 #ifndef PRODUCT | |
3882 if (is_MP()) { | |
3883 NoYieldsInMicrolock = true; | |
3884 } | |
3885 #endif | |
389
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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3886 // This may be overridden later when argument processing is done. |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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3887 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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3888 os::win32::is_windows_2003()); |
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3889 |
0 | 3890 // Initialize main_process and main_thread |
3891 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
389
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3892 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
0 | 3893 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
3894 fatal("DuplicateHandle failed\n"); | |
3895 } | |
3896 main_thread_id = (int) GetCurrentThreadId(); | |
3897 } | |
3898 | |
3899 // To install functions for atexit processing | |
3900 extern "C" { | |
3901 static void perfMemory_exit_helper() { | |
3902 perfMemory_exit(); | |
3903 } | |
3904 } | |
3905 | |
8872 | 3906 static jint initSock(); |
3907 | |
0 | 3908 // this is called _after_ the global arguments have been parsed |
3909 jint os::init_2(void) { | |
3910 // Allocate a single page and mark it as readable for safepoint polling | |
3911 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
3912 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
3913 | |
3914 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
3915 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
3916 | |
3917 os::set_polling_page( polling_page ); | |
3918 | |
3919 #ifndef PRODUCT | |
3920 if( Verbose && PrintMiscellaneous ) | |
3921 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
3922 #endif | |
3923 | |
3924 if (!UseMembar) { | |
656 | 3925 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
0 | 3926 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
3927 | |
656 | 3928 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
0 | 3929 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
3930 | |
3931 os::set_memory_serialize_page( mem_serialize_page ); | |
3932 | |
3933 #ifndef PRODUCT | |
3934 if(Verbose && PrintMiscellaneous) | |
3935 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
3936 #endif | |
3885 | 3937 } |
0 | 3938 |
3939 // Setup Windows Exceptions | |
3940 | |
3941 // for debugging float code generation bugs | |
3942 if (ForceFloatExceptions) { | |
3943 #ifndef _WIN64 | |
3944 static long fp_control_word = 0; | |
3945 __asm { fstcw fp_control_word } | |
3946 // see Intel PPro Manual, Vol. 2, p 7-16 | |
3947 const long precision = 0x20; | |
3948 const long underflow = 0x10; | |
3949 const long overflow = 0x08; | |
3950 const long zero_div = 0x04; | |
3951 const long denorm = 0x02; | |
3952 const long invalid = 0x01; | |
3953 fp_control_word |= invalid; | |
3954 __asm { fldcw fp_control_word } | |
3955 #endif | |
3956 } | |
3957 | |
3958 // If stack_commit_size is 0, windows will reserve the default size, | |
3959 // but only commit a small portion of it. | |
3960 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
3961 size_t default_reserve_size = os::win32::default_stack_size(); | |
3962 size_t actual_reserve_size = stack_commit_size; | |
3963 if (stack_commit_size < default_reserve_size) { | |
3964 // If stack_commit_size == 0, we want this too | |
3965 actual_reserve_size = default_reserve_size; | |
3966 } | |
3967 | |
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3968 // 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
|
3969 // the java system classes, including StackOverflowError - depends on page |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3970 // 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
|
3971 // 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
|
3972 // class initialization depending on 32 or 64 bit VM. |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3973 size_t min_stack_allowed = |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3974 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3975 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3976 if (actual_reserve_size < min_stack_allowed) { |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3977 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
|
3978 "Specify at least %dk", |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3979 min_stack_allowed / K); |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3980 return JNI_ERR; |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3981 } |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3982 |
0 | 3983 JavaThread::set_stack_size_at_create(stack_commit_size); |
3984 | |
3985 // Calculate theoretical max. size of Threads to guard gainst artifical | |
3986 // out-of-memory situations, where all available address-space has been | |
3987 // reserved by thread stacks. | |
3988 assert(actual_reserve_size != 0, "Must have a stack"); | |
3989 | |
3990 // Calculate the thread limit when we should start doing Virtual Memory | |
3991 // banging. Currently when the threads will have used all but 200Mb of space. | |
3992 // | |
3993 // TODO: consider performing a similar calculation for commit size instead | |
3994 // as reserve size, since on a 64-bit platform we'll run into that more | |
3995 // often than running out of virtual memory space. We can use the | |
3996 // 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
|
3997 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
0 | 3998 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
3999 | |
4000 // at exit methods are called in the reverse order of their registration. | |
4001 // there is no limit to the number of functions registered. atexit does | |
4002 // not set errno. | |
4003 | |
4004 if (PerfAllowAtExitRegistration) { | |
4005 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
4006 // atexit functions can be delayed until process exit time, which | |
4007 // can be problematic for embedded VM situations. Embedded VMs should | |
4008 // call DestroyJavaVM() to assure that VM resources are released. | |
4009 | |
4010 // note: perfMemory_exit_helper atexit function may be removed in | |
4011 // the future if the appropriate cleanup code can be added to the | |
4012 // VM_Exit VMOperation's doit method. | |
4013 if (atexit(perfMemory_exit_helper) != 0) { | |
4014 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
4015 } | |
4016 } | |
4017 | |
4018 #ifndef _WIN64 | |
4019 // Print something if NX is enabled (win32 on AMD64) | |
4020 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
4021 #endif | |
4022 | |
4023 // initialize thread priority policy | |
4024 prio_init(); | |
4025 | |
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4026 if (UseNUMA && !ForceNUMA) { |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4027 UseNUMA = false; // We don't fully support this yet |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4028 } |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4029 |
3885 | 4030 if (UseNUMAInterleaving) { |
4031 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
4032 bool success = numa_interleaving_init(); | |
4033 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
|
4034 } |
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
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389
diff
changeset
|
4035 |
8872 | 4036 if (initSock() != JNI_OK) { |
4037 return JNI_ERR; | |
4038 } | |
4039 | |
0 | 4040 return JNI_OK; |
4041 } | |
4042 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4043 void os::init_3(void) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4044 return; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4045 } |
0 | 4046 |
4047 // Mark the polling page as unreadable | |
4048 void os::make_polling_page_unreadable(void) { | |
4049 DWORD old_status; | |
4050 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
4051 fatal("Could not disable polling page"); | |
4052 }; | |
4053 | |
4054 // Mark the polling page as readable | |
4055 void os::make_polling_page_readable(void) { | |
4056 DWORD old_status; | |
4057 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
4058 fatal("Could not enable polling page"); | |
4059 }; | |
4060 | |
4061 | |
4062 int os::stat(const char *path, struct stat *sbuf) { | |
4063 char pathbuf[MAX_PATH]; | |
4064 if (strlen(path) > MAX_PATH - 1) { | |
4065 errno = ENAMETOOLONG; | |
4066 return -1; | |
4067 } | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
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|
4068 os::native_path(strcpy(pathbuf, path)); |
0 | 4069 int ret = ::stat(pathbuf, sbuf); |
4070 if (sbuf != NULL && UseUTCFileTimestamp) { | |
4071 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
4072 // the system timezone and so can return different values for the | |
4073 // same file if/when daylight savings time changes. This adjustment | |
4074 // makes sure the same timestamp is returned regardless of the TZ. | |
4075 // | |
4076 // See: | |
4077 // http://msdn.microsoft.com/library/ | |
4078 // default.asp?url=/library/en-us/sysinfo/base/ | |
4079 // time_zone_information_str.asp | |
4080 // and | |
4081 // http://msdn.microsoft.com/library/default.asp?url= | |
4082 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
4083 // | |
4084 // NOTE: there is a insidious bug here: If the timezone is changed | |
4085 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
4086 // the adjustment we do here will be wrong and we'll return the wrong | |
4087 // value (which will likely end up creating an invalid class data | |
4088 // archive). Absent a better API for this, or some time zone locking | |
4089 // mechanism, we'll have to live with this risk. | |
4090 TIME_ZONE_INFORMATION tz; | |
4091 DWORD tzid = GetTimeZoneInformation(&tz); | |
4092 int daylightBias = | |
4093 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
4094 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
4095 } | |
4096 return ret; | |
4097 } | |
4098 | |
4099 | |
4100 #define FT2INT64(ft) \ | |
4101 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
4102 | |
4103 | |
4104 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
4105 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
4106 // of a thread. | |
4107 // | |
4108 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
4109 // the fast estimate available on the platform. | |
4110 | |
4111 // current_thread_cpu_time() is not optimized for Windows yet | |
4112 jlong os::current_thread_cpu_time() { | |
4113 // return user + sys since the cost is the same | |
4114 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
4115 } | |
4116 | |
4117 jlong os::thread_cpu_time(Thread* thread) { | |
4118 // consistent with what current_thread_cpu_time() returns. | |
4119 return os::thread_cpu_time(thread, true /* user+sys */); | |
4120 } | |
4121 | |
4122 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
4123 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
4124 } | |
4125 | |
4126 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
4127 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
4128 // If this function changes, os::is_thread_cpu_time_supported() should too | |
4129 if (os::win32::is_nt()) { | |
4130 FILETIME CreationTime; | |
4131 FILETIME ExitTime; | |
4132 FILETIME KernelTime; | |
4133 FILETIME UserTime; | |
4134 | |
4135 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
4136 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
4137 return -1; | |
4138 else | |
4139 if (user_sys_cpu_time) { | |
4140 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
4141 } else { | |
4142 return FT2INT64(UserTime) * 100; | |
4143 } | |
4144 } else { | |
4145 return (jlong) timeGetTime() * 1000000; | |
4146 } | |
4147 } | |
4148 | |
4149 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
4150 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
4151 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
4152 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
4153 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
4154 } | |
4155 | |
4156 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
4157 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
4158 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
4159 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
4160 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
4161 } | |
4162 | |
4163 bool os::is_thread_cpu_time_supported() { | |
4164 // see os::thread_cpu_time | |
4165 if (os::win32::is_nt()) { | |
4166 FILETIME CreationTime; | |
4167 FILETIME ExitTime; | |
4168 FILETIME KernelTime; | |
4169 FILETIME UserTime; | |
4170 | |
4171 if ( GetThreadTimes(GetCurrentThread(), | |
4172 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
4173 return false; | |
4174 else | |
4175 return true; | |
4176 } else { | |
4177 return false; | |
4178 } | |
4179 } | |
4180 | |
4181 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
4182 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
4183 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
4184 // If we wanted to implement loadavg on Windows, we have a few options: | |
4185 // | |
4186 // a) Query CPU usage and run queue length and "fake" an answer by | |
4187 // returning the CPU usage if it's under 100%, and the run queue | |
4188 // length otherwise. It turns out that querying is pretty slow | |
4189 // on Windows, on the order of 200 microseconds on a fast machine. | |
4190 // Note that on the Windows the CPU usage value is the % usage | |
4191 // since the last time the API was called (and the first call | |
4192 // returns 100%), so we'd have to deal with that as well. | |
4193 // | |
4194 // b) Sample the "fake" answer using a sampling thread and store | |
4195 // the answer in a global variable. The call to loadavg would | |
4196 // just return the value of the global, avoiding the slow query. | |
4197 // | |
4198 // c) Sample a better answer using exponential decay to smooth the | |
4199 // value. This is basically the algorithm used by UNIX kernels. | |
4200 // | |
4201 // Note that sampling thread starvation could affect both (b) and (c). | |
4202 int os::loadavg(double loadavg[], int nelem) { | |
4203 return -1; | |
4204 } | |
4205 | |
4206 | |
4207 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
4208 bool os::dont_yield() { | |
4209 return DontYieldALot; | |
4210 } | |
4211 | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4212 // 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
|
4213 // 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
|
4214 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4215 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
|
4216 char pathbuf[MAX_PATH]; |
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 if (strlen(path) > MAX_PATH - 1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4219 errno = ENAMETOOLONG; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4220 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4221 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4222 os::native_path(strcpy(pathbuf, path)); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4223 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
|
4224 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4225 |
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4226 FILE* os::open(int fd, const char* mode) { |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4227 return ::_fdopen(fd, mode); |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4228 } |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4229 |
0 | 4230 // Is a (classpath) directory empty? |
4231 bool os::dir_is_empty(const char* path) { | |
4232 WIN32_FIND_DATA fd; | |
4233 HANDLE f = FindFirstFile(path, &fd); | |
4234 if (f == INVALID_HANDLE_VALUE) { | |
4235 return true; | |
4236 } | |
4237 FindClose(f); | |
4238 return false; | |
4239 } | |
4240 | |
4241 // create binary file, rewriting existing file if required | |
4242 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
4243 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
4244 if (!rewrite_existing) { | |
4245 oflags |= _O_EXCL; | |
4246 } | |
4247 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
4248 } | |
4249 | |
4250 // return current position of file pointer | |
4251 jlong os::current_file_offset(int fd) { | |
4252 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
4253 } | |
4254 | |
4255 // move file pointer to the specified offset | |
4256 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
4257 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
4258 } | |
4259 | |
4260 | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4261 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
|
4262 return (jlong) ::_lseeki64(fd, offset, whence); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4263 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4264 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4265 // 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
|
4266 // from src/windows/hpi/src/path_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4267 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4268 /* 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
|
4269 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
|
4270 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
|
4271 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
|
4272 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
|
4273 treat double-byte lead characters correctly. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4274 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4275 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
|
4276 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
|
4277 succeeds. */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4278 char * os::native_path(char *path) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4279 char *src = path, *dst = path, *end = path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4280 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
|
4281 point to the colon following the drive |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4282 letter */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4283 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4284 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4285 assert(((!::IsDBCSLeadByte('/')) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4286 && (!::IsDBCSLeadByte('\\')) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4287 && (!::IsDBCSLeadByte(':'))), |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4288 "Illegal lead byte"); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4289 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4290 /* Check for leading separators */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4291 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4292 while (isfilesep(*src)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4293 src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4294 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4295 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4296 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4297 /* 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
|
4298 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
|
4299 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
|
4300 "/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
|
4301 *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4302 colon = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4303 *dst++ = ':'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4304 src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4305 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4306 src = path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4307 if (isfilesep(src[0]) && isfilesep(src[1])) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4308 /* 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
|
4309 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
|
4310 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
|
4311 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
|
4312 src = dst = path + 1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4313 path[0] = '\\'; /* Force first separator to '\\' */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4314 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4315 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4316 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4317 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4318 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4319 /* 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
|
4320 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
|
4321 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
|
4322 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
|
4323 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4324 while (*src != '\0') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4325 if (isfilesep(*src)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4326 *dst++ = '\\'; src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4327 while (isfilesep(*src)) src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4328 if (*src == '\0') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4329 /* Check for trailing separator */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4330 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4331 if (colon == dst - 2) break; /* "z:\\" */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4332 if (dst == path + 1) break; /* "\\" */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4333 if (dst == path + 2 && isfilesep(path[0])) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4334 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4335 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
|
4336 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
|
4337 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
|
4338 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
|
4339 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
|
4340 directory of the current drive. */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4341 break; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4342 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4343 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
|
4344 remove trailing separator */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4345 break; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4346 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4347 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4348 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4349 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4350 *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4351 if (*src) *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4352 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4353 } else { /* Copy a single-byte character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4354 char c = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4355 *dst++ = c; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4356 /* Space is not a legal ending character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4357 if (c != ' ') end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4358 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4359 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4360 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4361 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4362 *end = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4363 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4364 /* 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
|
4365 if (colon == dst - 1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4366 path[2] = '.'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4367 path[3] = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4368 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4369 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4370 return path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4371 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4372 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4373 // 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
|
4374 // 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
|
4375 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4376 int os::ftruncate(int fd, jlong length) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4377 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4378 long high = (long)(length >> 32); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4379 DWORD ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4380 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4381 if (h == (HANDLE)(-1)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4382 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4383 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4384 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4385 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4386 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4387 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4388 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4389 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4390 if (::SetEndOfFile(h) == FALSE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4391 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4392 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4393 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4394 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4395 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4396 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4397 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4398 // 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
|
4399 // 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
|
4400 // 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
|
4401 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4402 int os::fsync(int fd) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4403 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4404 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4405 if ( (!::FlushFileBuffers(handle)) && |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4406 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4407 /* from winerror.h */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4408 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4409 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4410 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4411 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4412 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4413 static int nonSeekAvailable(int, long *); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4414 static int stdinAvailable(int, long *); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4415 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4416 #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
|
4417 #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
|
4418 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4419 // 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
|
4420 // 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
|
4421 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4422 int os::available(int fd, jlong *bytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4423 jlong cur, end; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4424 struct _stati64 stbuf64; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4425 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4426 if (::_fstati64(fd, &stbuf64) >= 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4427 int mode = stbuf64.st_mode; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4428 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4429 int ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4430 long lpbytes; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4431 if (fd == 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4432 ret = stdinAvailable(fd, &lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4433 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4434 ret = nonSeekAvailable(fd, &lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4435 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4436 (*bytes) = (jlong)(lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4437 return ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4438 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4439 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4440 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4441 } 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
|
4442 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4443 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4444 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4445 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4446 *bytes = end - cur; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4447 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4448 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4449 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4450 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4451 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4452 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4453 // 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
|
4454 // 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
|
4455 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4456 static int nonSeekAvailable(int fd, long *pbytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4457 /* 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
|
4458 * (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
|
4459 * connected to an exec'd process). |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4460 * Standard Input is a special case. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4461 * |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4462 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4463 HANDLE han; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4464 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4465 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4466 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4467 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4468 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4469 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
|
4470 /* 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
|
4471 * 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
|
4472 * 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
|
4473 * The only alternative is to raise an Exception, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4474 * which isn't really warranted. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4475 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4476 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4477 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4478 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4479 *pbytes = 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4480 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4481 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4482 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4483 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4484 #define MAX_INPUT_EVENTS 2000 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4485 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4486 // 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
|
4487 // 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
|
4488 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4489 static int stdinAvailable(int fd, long *pbytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4490 HANDLE han; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4491 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
|
4492 DWORD numEvents = 0; /* Number of events in buffer */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4493 DWORD i = 0; /* Loop index */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4494 DWORD curLength = 0; /* Position marker */ |
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4495 DWORD actualLength = 0; /* Number of bytes readable */ |
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4496 BOOL error = FALSE; /* Error holder */ |
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4497 INPUT_RECORD *lpBuffer; /* Pointer to records of input events */ |
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4498 |
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4499 if ((han = ::GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) { |
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|
4500 return FALSE; |
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|
4501 } |
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|
4502 |
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|
4503 /* Construct an array of input records in the console buffer */ |
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4504 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
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4505 if (error == 0) { |
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|
4506 return nonSeekAvailable(fd, pbytes); |
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|
4507 } |
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|
4508 |
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|
4509 /* lpBuffer must fit into 64K or else PeekConsoleInput fails */ |
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4510 if (numEvents > MAX_INPUT_EVENTS) { |
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|
4511 numEvents = MAX_INPUT_EVENTS; |
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|
4512 } |
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4513 |
6197 | 4514 lpBuffer = (INPUT_RECORD *)os::malloc(numEvents * sizeof(INPUT_RECORD), mtInternal); |
1980
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4515 if (lpBuffer == NULL) { |
828eafbd85cc
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|
4516 return FALSE; |
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|
4517 } |
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|
4518 |
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4519 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
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4520 if (error == 0) { |
6197 | 4521 os::free(lpBuffer, mtInternal); |
1980
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4522 return FALSE; |
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changeset
|
4523 } |
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|
4524 |
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|
4525 /* Examine input records for the number of bytes available */ |
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4526 for(i=0; i<numEvents; i++) { |
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4527 if (lpBuffer[i].EventType == KEY_EVENT) { |
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changeset
|
4528 |
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diff
changeset
|
4529 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
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|
4530 &(lpBuffer[i].Event); |
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changeset
|
4531 if (keyRecord->bKeyDown == TRUE) { |
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changeset
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4532 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
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changeset
|
4533 curLength++; |
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diff
changeset
|
4534 if (*keyPressed == '\r') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4535 actualLength = curLength; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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changeset
|
4536 } |
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6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4537 } |
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6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4538 } |
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6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4539 } |
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6348631: remove the use of the HPI library from Hotspot
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changeset
|
4540 |
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changeset
|
4541 if(lpBuffer != NULL) { |
6197 | 4542 os::free(lpBuffer, mtInternal); |
1980
828eafbd85cc
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|
4543 } |
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changeset
|
4544 |
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changeset
|
4545 *pbytes = (long) actualLength; |
828eafbd85cc
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changeset
|
4546 return TRUE; |
828eafbd85cc
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changeset
|
4547 } |
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|
4548 |
0 | 4549 // Map a block of memory. |
6197 | 4550 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
0 | 4551 char *addr, size_t bytes, bool read_only, |
4552 bool allow_exec) { | |
4553 HANDLE hFile; | |
4554 char* base; | |
4555 | |
4556 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
4557 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
4558 if (hFile == NULL) { | |
4559 if (PrintMiscellaneous && Verbose) { | |
4560 DWORD err = GetLastError(); | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
4561 tty->print_cr("CreateFile() failed: GetLastError->%ld.", err); |
0 | 4562 } |
4563 return NULL; | |
4564 } | |
4565 | |
4566 if (allow_exec) { | |
4567 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
4568 // unless it comes from a PE image (which the shared archive is not.) | |
4569 // Even VirtualProtect refuses to give execute access to mapped memory | |
4570 // that was not previously executable. | |
4571 // | |
4572 // Instead, stick the executable region in anonymous memory. Yuck. | |
4573 // Penalty is that ~4 pages will not be shareable - in the future | |
4574 // we might consider DLLizing the shared archive with a proper PE | |
4575 // header so that mapping executable + sharing is possible. | |
4576 | |
4577 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
4578 PAGE_READWRITE); | |
4579 if (base == NULL) { | |
4580 if (PrintMiscellaneous && Verbose) { | |
4581 DWORD err = GetLastError(); | |
4582 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
4583 } | |
4584 CloseHandle(hFile); | |
4585 return NULL; | |
4586 } | |
4587 | |
4588 DWORD bytes_read; | |
4589 OVERLAPPED overlapped; | |
4590 overlapped.Offset = (DWORD)file_offset; | |
4591 overlapped.OffsetHigh = 0; | |
4592 overlapped.hEvent = NULL; | |
4593 // ReadFile guarantees that if the return value is true, the requested | |
4594 // number of bytes were read before returning. | |
4595 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
4596 if (!res) { | |
4597 if (PrintMiscellaneous && Verbose) { | |
4598 DWORD err = GetLastError(); | |
4599 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
4600 } | |
4601 release_memory(base, bytes); | |
4602 CloseHandle(hFile); | |
4603 return NULL; | |
4604 } | |
4605 } else { | |
4606 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
4607 NULL /*file_name*/); | |
4608 if (hMap == NULL) { | |
4609 if (PrintMiscellaneous && Verbose) { | |
4610 DWORD err = GetLastError(); | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
4611 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld.", err); |
0 | 4612 } |
4613 CloseHandle(hFile); | |
4614 return NULL; | |
4615 } | |
4616 | |
4617 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
4618 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
4619 (DWORD)bytes, addr); | |
4620 if (base == NULL) { | |
4621 if (PrintMiscellaneous && Verbose) { | |
4622 DWORD err = GetLastError(); | |
4623 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
4624 } | |
4625 CloseHandle(hMap); | |
4626 CloseHandle(hFile); | |
4627 return NULL; | |
4628 } | |
4629 | |
4630 if (CloseHandle(hMap) == 0) { | |
4631 if (PrintMiscellaneous && Verbose) { | |
4632 DWORD err = GetLastError(); | |
4633 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
4634 } | |
4635 CloseHandle(hFile); | |
4636 return base; | |
4637 } | |
4638 } | |
4639 | |
4640 if (allow_exec) { | |
4641 DWORD old_protect; | |
4642 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
4643 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
4644 | |
4645 if (!res) { | |
4646 if (PrintMiscellaneous && Verbose) { | |
4647 DWORD err = GetLastError(); | |
4648 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
4649 } | |
4650 // Don't consider this a hard error, on IA32 even if the | |
4651 // VirtualProtect fails, we should still be able to execute | |
4652 CloseHandle(hFile); | |
4653 return base; | |
4654 } | |
4655 } | |
4656 | |
4657 if (CloseHandle(hFile) == 0) { | |
4658 if (PrintMiscellaneous && Verbose) { | |
4659 DWORD err = GetLastError(); | |
4660 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
4661 } | |
4662 return base; | |
4663 } | |
4664 | |
4665 return base; | |
4666 } | |
4667 | |
4668 | |
4669 // Remap a block of memory. | |
6197 | 4670 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
0 | 4671 char *addr, size_t bytes, bool read_only, |
4672 bool allow_exec) { | |
4673 // This OS does not allow existing memory maps to be remapped so we | |
4674 // have to unmap the memory before we remap it. | |
4675 if (!os::unmap_memory(addr, bytes)) { | |
4676 return NULL; | |
4677 } | |
4678 | |
4679 // There is a very small theoretical window between the unmap_memory() | |
4680 // call above and the map_memory() call below where a thread in native | |
4681 // code may be able to access an address that is no longer mapped. | |
4682 | |
6197 | 4683 return os::map_memory(fd, file_name, file_offset, addr, bytes, |
4684 read_only, allow_exec); | |
0 | 4685 } |
4686 | |
4687 | |
4688 // Unmap a block of memory. | |
4689 // Returns true=success, otherwise false. | |
4690 | |
6197 | 4691 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
0 | 4692 BOOL result = UnmapViewOfFile(addr); |
4693 if (result == 0) { | |
4694 if (PrintMiscellaneous && Verbose) { | |
4695 DWORD err = GetLastError(); | |
4696 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
4697 } | |
4698 return false; | |
4699 } | |
4700 return true; | |
4701 } | |
4702 | |
4703 void os::pause() { | |
4704 char filename[MAX_PATH]; | |
4705 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
4706 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
4707 } else { | |
4708 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
4709 } | |
4710 | |
4711 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
4712 if (fd != -1) { | |
4713 struct stat buf; | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4714 ::close(fd); |
0 | 4715 while (::stat(filename, &buf) == 0) { |
4716 Sleep(100); | |
4717 } | |
4718 } else { | |
4719 jio_fprintf(stderr, | |
4720 "Could not open pause file '%s', continuing immediately.\n", filename); | |
4721 } | |
4722 } | |
4723 | |
11151 | 4724 os::WatcherThreadCrashProtection::WatcherThreadCrashProtection() { |
4725 assert(Thread::current()->is_Watcher_thread(), "Must be WatcherThread"); | |
4726 } | |
4727 | |
4728 /* | |
4729 * See the caveats for this class in os_windows.hpp | |
4730 * Protects the callback call so that raised OS EXCEPTIONS causes a jump back | |
4731 * into this method and returns false. If no OS EXCEPTION was raised, returns | |
4732 * true. | |
4733 * The callback is supposed to provide the method that should be protected. | |
4734 */ | |
4735 bool os::WatcherThreadCrashProtection::call(os::CrashProtectionCallback& cb) { | |
4736 assert(Thread::current()->is_Watcher_thread(), "Only for WatcherThread"); | |
4737 assert(!WatcherThread::watcher_thread()->has_crash_protection(), | |
4738 "crash_protection already set?"); | |
4739 | |
4740 bool success = true; | |
4741 __try { | |
4742 WatcherThread::watcher_thread()->set_crash_protection(this); | |
4743 cb.call(); | |
4744 } __except(EXCEPTION_EXECUTE_HANDLER) { | |
4745 // only for protection, nothing to do | |
4746 success = false; | |
4747 } | |
4748 WatcherThread::watcher_thread()->set_crash_protection(NULL); | |
4749 return success; | |
4750 } | |
4751 | |
0 | 4752 // An Event wraps a win32 "CreateEvent" kernel handle. |
4753 // | |
4754 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
4755 // | |
4756 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
4757 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
4758 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
4759 // In addition, an unpark() operation might fetch the handle field, but the | |
4760 // event could recycle between the fetch and the SetEvent() operation. | |
4761 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
4762 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
4763 // on an stale but recycled handle would be harmless, but in practice this might | |
4764 // confuse other non-Sun code, so it's not a viable approach. | |
4765 // | |
4766 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
4767 // with the Event. The event handle is never closed. This could be construed | |
4768 // as handle leakage, but only up to the maximum # of threads that have been extant | |
4769 // at any one time. This shouldn't be an issue, as windows platforms typically | |
4770 // permit a process to have hundreds of thousands of open handles. | |
4771 // | |
4772 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
4773 // and release unused handles. | |
4774 // | |
4775 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
4776 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
4777 // | |
4778 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
4779 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
4780 // | |
4781 // We use (2). | |
4782 // | |
4783 // TODO-FIXME: | |
4784 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
4785 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
4786 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
4787 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
4788 // into a single win32 CreateEvent() handle. | |
4789 // | |
4790 // _Event transitions in park() | |
4791 // -1 => -1 : illegal | |
4792 // 1 => 0 : pass - return immediately | |
4793 // 0 => -1 : block | |
4794 // | |
4795 // _Event serves as a restricted-range semaphore : | |
4796 // -1 : thread is blocked | |
4797 // 0 : neutral - thread is running or ready | |
4798 // 1 : signaled - thread is running or ready | |
4799 // | |
4800 // Another possible encoding of _Event would be | |
4801 // with explicit "PARKED" and "SIGNALED" bits. | |
4802 | |
4803 int os::PlatformEvent::park (jlong Millis) { | |
4804 guarantee (_ParkHandle != NULL , "Invariant") ; | |
4805 guarantee (Millis > 0 , "Invariant") ; | |
4806 int v ; | |
4807 | |
4808 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
4809 // the initial park() operation. | |
4810 | |
4811 for (;;) { | |
4812 v = _Event ; | |
4813 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
4814 } | |
4815 guarantee ((v == 0) || (v == 1), "invariant") ; | |
4816 if (v != 0) return OS_OK ; | |
4817 | |
4818 // Do this the hard way by blocking ... | |
4819 // TODO: consider a brief spin here, gated on the success of recent | |
4820 // spin attempts by this thread. | |
4821 // | |
4822 // We decompose long timeouts into series of shorter timed waits. | |
4823 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
4824 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
4825 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
4826 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
4827 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
4828 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
4829 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
4830 // for the already waited time. This policy does not admit any new outcomes. | |
4831 // In the future, however, we might want to track the accumulated wait time and | |
4832 // adjust Millis accordingly if we encounter a spurious wakeup. | |
4833 | |
4834 const int MAXTIMEOUT = 0x10000000 ; | |
4835 DWORD rv = WAIT_TIMEOUT ; | |
4836 while (_Event < 0 && Millis > 0) { | |
4837 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
4838 if (Millis > MAXTIMEOUT) { | |
4839 prd = MAXTIMEOUT ; | |
4840 } | |
4841 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
4842 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
4843 if (rv == WAIT_TIMEOUT) { | |
4844 Millis -= prd ; | |
4845 } | |
4846 } | |
4847 v = _Event ; | |
4848 _Event = 0 ; | |
7629
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4849 // see comment at end of os::PlatformEvent::park() below: |
0 | 4850 OrderAccess::fence() ; |
4851 // If we encounter a nearly simultanous timeout expiry and unpark() | |
4852 // we return OS_OK indicating we awoke via unpark(). | |
4853 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
4854 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
4855 } | |
4856 | |
4857 void os::PlatformEvent::park () { | |
4858 guarantee (_ParkHandle != NULL, "Invariant") ; | |
4859 // Invariant: Only the thread associated with the Event/PlatformEvent | |
4860 // may call park(). | |
4861 int v ; | |
4862 for (;;) { | |
4863 v = _Event ; | |
4864 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
4865 } | |
4866 guarantee ((v == 0) || (v == 1), "invariant") ; | |
4867 if (v != 0) return ; | |
4868 | |
4869 // Do this the hard way by blocking ... | |
4870 // TODO: consider a brief spin here, gated on the success of recent | |
4871 // spin attempts by this thread. | |
4872 while (_Event < 0) { | |
4873 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
4874 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
4875 } | |
4876 | |
4877 // Usually we'll find _Event == 0 at this point, but as | |
4878 // an optional optimization we clear it, just in case can | |
4879 // multiple unpark() operations drove _Event up to 1. | |
4880 _Event = 0 ; | |
4881 OrderAccess::fence() ; | |
4882 guarantee (_Event >= 0, "invariant") ; | |
4883 } | |
4884 | |
4885 void os::PlatformEvent::unpark() { | |
4886 guarantee (_ParkHandle != NULL, "Invariant") ; | |
7629
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4887 |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4888 // Transitions for _Event: |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4889 // 0 :=> 1 |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4890 // 1 :=> 1 |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4891 // -1 :=> either 0 or 1; must signal target thread |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4892 // That is, we can safely transition _Event from -1 to either |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4893 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4894 // unpark() calls. |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4895 // See also: "Semaphores in Plan 9" by Mullender & Cox |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4896 // |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4897 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4898 // that it will take two back-to-back park() calls for the owning |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4899 // thread to block. This has the benefit of forcing a spurious return |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4900 // from the first park() call after an unpark() call which will help |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4901 // shake out uses of park() and unpark() without condition variables. |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4902 |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4903 if (Atomic::xchg(1, &_Event) >= 0) return; |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4904 |
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
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diff
changeset
|
4905 ::SetEvent(_ParkHandle); |
0 | 4906 } |
4907 | |
4908 | |
4909 // JSR166 | |
4910 // ------------------------------------------------------- | |
4911 | |
4912 /* | |
4913 * The Windows implementation of Park is very straightforward: Basic | |
4914 * operations on Win32 Events turn out to have the right semantics to | |
4915 * use them directly. We opportunistically resuse the event inherited | |
4916 * from Monitor. | |
4917 */ | |
4918 | |
4919 | |
4920 void Parker::park(bool isAbsolute, jlong time) { | |
4921 guarantee (_ParkEvent != NULL, "invariant") ; | |
4922 // First, demultiplex/decode time arguments | |
4923 if (time < 0) { // don't wait | |
4924 return; | |
4925 } | |
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
4926 else if (time == 0 && !isAbsolute) { |
0 | 4927 time = INFINITE; |
4928 } | |
4929 else if (isAbsolute) { | |
4930 time -= os::javaTimeMillis(); // convert to relative time | |
4931 if (time <= 0) // already elapsed | |
4932 return; | |
4933 } | |
4934 else { // relative | |
4935 time /= 1000000; // Must coarsen from nanos to millis | |
4936 if (time == 0) // Wait for the minimal time unit if zero | |
4937 time = 1; | |
4938 } | |
4939 | |
4940 JavaThread* thread = (JavaThread*)(Thread::current()); | |
4941 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
4942 JavaThread *jt = (JavaThread *)thread; | |
4943 | |
4944 // Don't wait if interrupted or already triggered | |
4945 if (Thread::is_interrupted(thread, false) || | |
4946 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
4947 ResetEvent(_ParkEvent); | |
4948 return; | |
4949 } | |
4950 else { | |
4951 ThreadBlockInVM tbivm(jt); | |
4952 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
4953 jt->set_suspend_equivalent(); | |
4954 | |
4955 WaitForSingleObject(_ParkEvent, time); | |
4956 ResetEvent(_ParkEvent); | |
4957 | |
4958 // If externally suspended while waiting, re-suspend | |
4959 if (jt->handle_special_suspend_equivalent_condition()) { | |
4960 jt->java_suspend_self(); | |
4961 } | |
4962 } | |
4963 } | |
4964 | |
4965 void Parker::unpark() { | |
4966 guarantee (_ParkEvent != NULL, "invariant") ; | |
4967 SetEvent(_ParkEvent); | |
4968 } | |
4969 | |
4970 // Run the specified command in a separate process. Return its exit value, | |
4971 // or -1 on failure (e.g. can't create a new process). | |
4972 int os::fork_and_exec(char* cmd) { | |
4973 STARTUPINFO si; | |
4974 PROCESS_INFORMATION pi; | |
4975 | |
4976 memset(&si, 0, sizeof(si)); | |
4977 si.cb = sizeof(si); | |
4978 memset(&pi, 0, sizeof(pi)); | |
4979 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
4980 cmd, // command line | |
4981 NULL, // process security attribute | |
4982 NULL, // thread security attribute | |
4983 TRUE, // inherits system handles | |
4984 0, // no creation flags | |
4985 NULL, // use parent's environment block | |
4986 NULL, // use parent's starting directory | |
4987 &si, // (in) startup information | |
4988 &pi); // (out) process information | |
4989 | |
4990 if (rslt) { | |
4991 // Wait until child process exits. | |
4992 WaitForSingleObject(pi.hProcess, INFINITE); | |
4993 | |
4994 DWORD exit_code; | |
4995 GetExitCodeProcess(pi.hProcess, &exit_code); | |
4996 | |
4997 // Close process and thread handles. | |
4998 CloseHandle(pi.hProcess); | |
4999 CloseHandle(pi.hThread); | |
5000 | |
5001 return (int)exit_code; | |
5002 } else { | |
5003 return -1; | |
5004 } | |
5005 } | |
5006 | |
5007 //-------------------------------------------------------------------------------------------------- | |
5008 // Non-product code | |
5009 | |
5010 static int mallocDebugIntervalCounter = 0; | |
5011 static int mallocDebugCounter = 0; | |
5012 bool os::check_heap(bool force) { | |
5013 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
5014 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
5015 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
5016 // wrong; at these points, eax contains the address of the offending block (I think). | |
5017 // To get to the exlicit error message(s) below, just continue twice. | |
5018 HANDLE heap = GetProcessHeap(); | |
5019 { HeapLock(heap); | |
5020 PROCESS_HEAP_ENTRY phe; | |
5021 phe.lpData = NULL; | |
5022 while (HeapWalk(heap, &phe) != 0) { | |
5023 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
5024 !HeapValidate(heap, 0, phe.lpData)) { | |
5025 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
5026 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
5027 fatal("corrupted C heap"); | |
5028 } | |
5029 } | |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
5030 DWORD err = GetLastError(); |
0 | 5031 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
|
5032 fatal(err_msg("heap walk aborted with error %d", err)); |
0 | 5033 } |
5034 HeapUnlock(heap); | |
5035 } | |
5036 mallocDebugIntervalCounter = 0; | |
5037 } | |
5038 return true; | |
5039 } | |
5040 | |
5041 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5042 bool os::find(address addr, outputStream* st) { |
0 | 5043 // Nothing yet |
5044 return false; | |
5045 } | |
5046 | |
5047 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
5048 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
5049 | |
5050 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
5051 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
5052 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
5053 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
5054 | |
5055 if (os::is_memory_serialize_page(thread, addr)) | |
5056 return EXCEPTION_CONTINUE_EXECUTION; | |
5057 } | |
5058 | |
5059 return EXCEPTION_CONTINUE_SEARCH; | |
5060 } | |
5061 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5062 // We don't build a headless jre for Windows |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5063 bool os::is_headless_jre() { return false; } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5064 |
8872 | 5065 static jint initSock() { |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5066 WSADATA wsadata; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5067 |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5068 if (!os::WinSock2Dll::WinSock2Available()) { |
8872 | 5069 jio_fprintf(stderr, "Could not load Winsock (error: %d)\n", |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5070 ::GetLastError()); |
8872 | 5071 return JNI_ERR; |
5072 } | |
5073 | |
5074 if (os::WinSock2Dll::WSAStartup(MAKEWORD(2,2), &wsadata) != 0) { | |
5075 jio_fprintf(stderr, "Could not initialize Winsock (error: %d)\n", | |
5076 ::GetLastError()); | |
5077 return JNI_ERR; | |
5078 } | |
5079 return JNI_OK; | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5080 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5081 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5082 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
|
5083 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5084 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5085 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5086 int os::socket_close(int fd) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5087 return ::closesocket(fd); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5088 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5089 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5090 int os::socket_available(int fd, jint *pbytes) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5091 int ret = ::ioctlsocket(fd, FIONREAD, (u_long*)pbytes); |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5092 return (ret < 0) ? 0 : 1; |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5093 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5094 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5095 int os::socket(int domain, int type, int protocol) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5096 return ::socket(domain, type, protocol); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5097 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5098 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5099 int os::listen(int fd, int count) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5100 return ::listen(fd, count); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5101 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5102 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5103 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
|
5104 return ::connect(fd, him, len); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5105 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5106 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5107 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
|
5108 return ::accept(fd, him, len); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5109 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5110 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5111 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
|
5112 struct sockaddr* to, socklen_t tolen) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5113 |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5114 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
|
5115 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5116 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5117 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
|
5118 sockaddr* from, socklen_t* fromlen) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5119 |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5120 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
|
5121 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5122 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5123 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
|
5124 return ::recv(fd, buf, (int)nBytes, flags); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5125 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5126 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5127 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
|
5128 return ::send(fd, buf, (int)nBytes, flags); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5129 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5130 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5131 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
|
5132 return ::send(fd, buf, (int)nBytes, flags); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5133 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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|
5134 |
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|
5135 int os::timeout(int fd, long timeout) { |
6044
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|
5136 fd_set tbl; |
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|
5137 struct timeval t; |
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|
5138 |
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|
5139 t.tv_sec = timeout / 1000; |
ec15e8f6e4f1
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5140 t.tv_usec = (timeout % 1000) * 1000; |
ec15e8f6e4f1
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|
5141 |
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|
5142 tbl.fd_count = 1; |
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|
5143 tbl.fd_array[0] = fd; |
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|
5144 |
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|
5145 return ::select(1, &tbl, 0, 0, &t); |
1980
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|
5146 } |
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|
5147 |
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|
5148 int os::get_host_name(char* name, int namelen) { |
6044
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5149 return ::gethostname(name, namelen); |
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|
5150 } |
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|
5151 |
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|
5152 int os::socket_shutdown(int fd, int howto) { |
6044
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5153 return ::shutdown(fd, howto); |
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|
5154 } |
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|
5155 |
4717
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|
5156 int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
6044
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5157 return ::bind(fd, him, len); |
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|
5158 } |
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|
5159 |
4717
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|
5160 int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
6044
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|
5161 return ::getsockname(fd, him, len); |
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|
5162 } |
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|
5163 |
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|
5164 int os::get_sock_opt(int fd, int level, int optname, |
4717
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|
5165 char* optval, socklen_t* optlen) { |
6044
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|
5166 return ::getsockopt(fd, level, optname, optval, optlen); |
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|
5167 } |
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|
5168 |
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|
5169 int os::set_sock_opt(int fd, int level, int optname, |
4717
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|
5170 const char* optval, socklen_t optlen) { |
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|
5171 return ::setsockopt(fd, level, optname, optval, optlen); |
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|
5172 } |
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5173 |
10405 | 5174 // WINDOWS CONTEXT Flags for THREAD_SAMPLING |
5175 #if defined(IA32) | |
5176 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT | CONTEXT_EXTENDED_REGISTERS) | |
5177 #elif defined (AMD64) | |
5178 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
5179 #endif | |
5180 | |
5181 // returns true if thread could be suspended, | |
5182 // false otherwise | |
5183 static bool do_suspend(HANDLE* h) { | |
5184 if (h != NULL) { | |
5185 if (SuspendThread(*h) != ~0) { | |
5186 return true; | |
5187 } | |
5188 } | |
5189 return false; | |
5190 } | |
5191 | |
5192 // resume the thread | |
5193 // calling resume on an active thread is a no-op | |
5194 static void do_resume(HANDLE* h) { | |
5195 if (h != NULL) { | |
5196 ResumeThread(*h); | |
5197 } | |
5198 } | |
5199 | |
5200 // retrieve a suspend/resume context capable handle | |
5201 // from the tid. Caller validates handle return value. | |
5202 void get_thread_handle_for_extended_context(HANDLE* h, OSThread::thread_id_t tid) { | |
5203 if (h != NULL) { | |
5204 *h = OpenThread(THREAD_SUSPEND_RESUME | THREAD_GET_CONTEXT | THREAD_QUERY_INFORMATION, FALSE, tid); | |
5205 } | |
5206 } | |
5207 | |
5208 // | |
5209 // Thread sampling implementation | |
5210 // | |
5211 void os::SuspendedThreadTask::internal_do_task() { | |
5212 CONTEXT ctxt; | |
5213 HANDLE h = NULL; | |
5214 | |
5215 // get context capable handle for thread | |
5216 get_thread_handle_for_extended_context(&h, _thread->osthread()->thread_id()); | |
5217 | |
5218 // sanity | |
5219 if (h == NULL || h == INVALID_HANDLE_VALUE) { | |
5220 return; | |
5221 } | |
5222 | |
5223 // suspend the thread | |
5224 if (do_suspend(&h)) { | |
5225 ctxt.ContextFlags = sampling_context_flags; | |
5226 // get thread context | |
5227 GetThreadContext(h, &ctxt); | |
5228 SuspendedThreadTaskContext context(_thread, &ctxt); | |
5229 // pass context to Thread Sampling impl | |
5230 do_task(context); | |
5231 // resume thread | |
5232 do_resume(&h); | |
5233 } | |
5234 | |
5235 // close handle | |
5236 CloseHandle(h); | |
5237 } | |
5238 | |
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5239 |
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|
5240 // Kernel32 API |
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|
5241 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
3885 | 5242 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
5243 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
5244 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
6197 | 5245 typedef USHORT (WINAPI* RtlCaptureStackBackTrace_Fn)(ULONG, ULONG, PVOID*, PULONG); |
3885 | 5246 |
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|
5247 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
3885 | 5248 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
5249 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
5250 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
6197 | 5251 RtlCaptureStackBackTrace_Fn os::Kernel32Dll::_RtlCaptureStackBackTrace = NULL; |
5252 | |
5253 | |
3833
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5254 BOOL os::Kernel32Dll::initialized = FALSE; |
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|
5255 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
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5256 assert(initialized && _GetLargePageMinimum != NULL, |
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|
5257 "GetLargePageMinimumAvailable() not yet called"); |
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|
5258 return _GetLargePageMinimum(); |
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|
5259 } |
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|
5260 |
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|
5261 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
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|
5262 if (!initialized) { |
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|
5263 initialize(); |
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|
5264 } |
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|
5265 return _GetLargePageMinimum != NULL; |
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|
5266 } |
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|
5267 |
3885 | 5268 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
5269 if (!initialized) { | |
5270 initialize(); | |
5271 } | |
5272 return _VirtualAllocExNuma != NULL; | |
5273 } | |
5274 | |
5275 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
5276 assert(initialized && _VirtualAllocExNuma != NULL, | |
5277 "NUMACallsAvailable() not yet called"); | |
5278 | |
5279 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
5280 } | |
5281 | |
5282 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
5283 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
5284 "NUMACallsAvailable() not yet called"); | |
5285 | |
5286 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
5287 } | |
5288 | |
5289 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
5290 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
5291 "NUMACallsAvailable() not yet called"); | |
5292 | |
5293 return _GetNumaNodeProcessorMask(node, proc_mask); | |
5294 } | |
5295 | |
6197 | 5296 USHORT os::Kernel32Dll::RtlCaptureStackBackTrace(ULONG FrameToSkip, |
5297 ULONG FrameToCapture, PVOID* BackTrace, PULONG BackTraceHash) { | |
5298 if (!initialized) { | |
5299 initialize(); | |
5300 } | |
5301 | |
5302 if (_RtlCaptureStackBackTrace != NULL) { | |
5303 return _RtlCaptureStackBackTrace(FrameToSkip, FrameToCapture, | |
5304 BackTrace, BackTraceHash); | |
5305 } else { | |
5306 return 0; | |
5307 } | |
5308 } | |
3885 | 5309 |
5310 void os::Kernel32Dll::initializeCommon() { | |
5311 if (!initialized) { | |
5312 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
5313 assert(handle != NULL, "Just check"); | |
5314 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
5315 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
5316 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
5317 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
6197 | 5318 _RtlCaptureStackBackTrace = (RtlCaptureStackBackTrace_Fn)::GetProcAddress(handle, "RtlCaptureStackBackTrace"); |
3885 | 5319 initialized = TRUE; |
5320 } | |
5321 } | |
5322 | |
5323 | |
3833
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5324 |
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|
5325 #ifndef JDK6_OR_EARLIER |
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5326 |
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|
5327 void os::Kernel32Dll::initialize() { |
3885 | 5328 initializeCommon(); |
3833
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|
5329 } |
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|
5330 |
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|
5331 |
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|
5332 // Kernel32 API |
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5333 inline BOOL os::Kernel32Dll::SwitchToThread() { |
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5334 return ::SwitchToThread(); |
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|
5335 } |
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|
5336 |
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|
5337 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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5338 return true; |
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|
5339 } |
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|
5340 |
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5341 // Help tools |
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|
5342 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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5343 return true; |
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|
5344 } |
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|
5345 |
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|
5346 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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5347 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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5348 } |
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|
5349 |
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|
5350 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5351 return ::Module32First(hSnapshot, lpme); |
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5352 } |
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|
5353 |
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5354 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5355 return ::Module32Next(hSnapshot, lpme); |
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5356 } |
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|
5357 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5358 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5359 inline BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5360 return true; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
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|
5361 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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changeset
|
5362 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5363 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5364 ::GetNativeSystemInfo(lpSystemInfo); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
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|
5365 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5366 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5367 // PSAPI API |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
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|
5368 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
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|
5369 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
diff
changeset
|
5370 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5371 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
diff
changeset
|
5372 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
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|
5373 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
diff
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|
5374 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5375 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5376 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5377 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5378 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5379 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5380 inline BOOL os::PSApiDll::PSApiAvailable() { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5381 return true; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
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|
5382 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5383 |
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parents:
3800
diff
changeset
|
5384 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
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diff
changeset
|
5385 // WinSock2 API |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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3800
diff
changeset
|
5386 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
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|
5387 return ::WSAStartup(wVersionRequested, lpWSAData); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5388 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5389 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5390 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5391 return ::gethostbyname(name); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5392 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5393 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5394 inline BOOL os::WinSock2Dll::WinSock2Available() { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5395 return true; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5396 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5397 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5398 // Advapi API |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5399 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5400 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5401 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5402 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5403 BufferLength, PreviousState, ReturnLength); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5404 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5405 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5406 inline BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5407 PHANDLE TokenHandle) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5408 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5409 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5410 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5411 inline BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5412 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5413 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5414 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5415 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5416 return true; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5417 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
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diff
changeset
|
5418 |
12117
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5419 void* os::get_default_process_handle() { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5420 return (void*)GetModuleHandle(NULL); |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5421 } |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5422 |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
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|
5423 // Builds a platform dependent Agent_OnLoad_<lib_name> function name |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
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|
5424 // which is used to find statically linked in agents. |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
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|
5425 // Additionally for windows, takes into account __stdcall names. |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5426 // Parameters: |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5427 // sym_name: Symbol in library we are looking for |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5428 // lib_name: Name of library to look in, NULL for shared libs. |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
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|
5429 // is_absolute_path == true if lib_name is absolute path to agent |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
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|
5430 // such as "C:/a/b/L.dll" |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
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|
5431 // == false if only the base name of the library is passed in |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5432 // such as "L" |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5433 char* os::build_agent_function_name(const char *sym_name, const char *lib_name, |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5434 bool is_absolute_path) { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5435 char *agent_entry_name; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5436 size_t len; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5437 size_t name_len; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5438 size_t prefix_len = strlen(JNI_LIB_PREFIX); |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5439 size_t suffix_len = strlen(JNI_LIB_SUFFIX); |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5440 const char *start; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5441 |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5442 if (lib_name != NULL) { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5443 len = name_len = strlen(lib_name); |
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8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5444 if (is_absolute_path) { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5445 // Need to strip path, prefix and suffix |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5446 if ((start = strrchr(lib_name, *os::file_separator())) != NULL) { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5447 lib_name = ++start; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5448 } else { |
12220 | 5449 // Need to check for drive prefix |
12117
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5450 if ((start = strchr(lib_name, ':')) != NULL) { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5451 lib_name = ++start; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5452 } |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5453 } |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5454 if (len <= (prefix_len + suffix_len)) { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5455 return NULL; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5456 } |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5457 lib_name += prefix_len; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5458 name_len = strlen(lib_name) - suffix_len; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5459 } |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5460 } |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5461 len = (lib_name != NULL ? name_len : 0) + strlen(sym_name) + 2; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5462 agent_entry_name = NEW_C_HEAP_ARRAY_RETURN_NULL(char, len, mtThread); |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5463 if (agent_entry_name == NULL) { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5464 return NULL; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5465 } |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5466 if (lib_name != NULL) { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5467 const char *p = strrchr(sym_name, '@'); |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5468 if (p != NULL && p != sym_name) { |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5469 // sym_name == _Agent_OnLoad@XX |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5470 strncpy(agent_entry_name, sym_name, (p - sym_name)); |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5471 agent_entry_name[(p-sym_name)] = '\0'; |
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5472 // agent_entry_name == _Agent_OnLoad |
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|
5473 strcat(agent_entry_name, "_"); |
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|
5474 strncat(agent_entry_name, lib_name, name_len); |
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|
5475 strcat(agent_entry_name, p); |
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|
5476 // agent_entry_name == _Agent_OnLoad_lib_name@XX |
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|
5477 } else { |
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|
5478 strcpy(agent_entry_name, sym_name); |
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|
5479 strcat(agent_entry_name, "_"); |
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|
5480 strncat(agent_entry_name, lib_name, name_len); |
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|
5481 } |
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|
5482 } else { |
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|
5483 strcpy(agent_entry_name, sym_name); |
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|
5484 } |
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|
5485 return agent_entry_name; |
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|
5486 } |
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|
5487 |
3833
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5488 #else |
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5489 // Kernel32 API |
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5490 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
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5491 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
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5492 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
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5493 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
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5494 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
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|
5495 |
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5496 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
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5497 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
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5498 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
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5499 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
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5500 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
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|
5501 |
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|
5502 void os::Kernel32Dll::initialize() { |
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|
5503 if (!initialized) { |
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|
5504 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
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|
5505 assert(handle != NULL, "Just check"); |
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|
5506 |
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|
5507 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
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|
5508 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
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|
5509 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
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|
5510 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
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5511 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
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5512 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
3885 | 5513 initializeCommon(); // resolve the functions that always need resolving |
3833
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|
5514 |
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|
5515 initialized = TRUE; |
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|
5516 } |
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|
5517 } |
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|
5518 |
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|
5519 BOOL os::Kernel32Dll::SwitchToThread() { |
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|
5520 assert(initialized && _SwitchToThread != NULL, |
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|
5521 "SwitchToThreadAvailable() not yet called"); |
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|
5522 return _SwitchToThread(); |
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|
5523 } |
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|
5524 |
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|
5525 |
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|
5526 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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|
5527 if (!initialized) { |
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|
5528 initialize(); |
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|
5529 } |
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|
5530 return _SwitchToThread != NULL; |
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|
5531 } |
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|
5532 |
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|
5533 // Help tools |
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|
5534 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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|
5535 if (!initialized) { |
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|
5536 initialize(); |
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|
5537 } |
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|
5538 return _CreateToolhelp32Snapshot != NULL && |
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|
5539 _Module32First != NULL && |
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|
5540 _Module32Next != NULL; |
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|
5541 } |
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|
5542 |
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|
5543 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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|
5544 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
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|
5545 "HelpToolsAvailable() not yet called"); |
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|
5546 |
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|
5547 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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|
5548 } |
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|
5549 |
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|
5550 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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|
5551 assert(initialized && _Module32First != NULL, |
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|
5552 "HelpToolsAvailable() not yet called"); |
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|
5553 |
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|
5554 return _Module32First(hSnapshot, lpme); |
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|
5555 } |
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|
5556 |
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|
5557 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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|
5558 assert(initialized && _Module32Next != NULL, |
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|
5559 "HelpToolsAvailable() not yet called"); |
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|
5560 |
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|
5561 return _Module32Next(hSnapshot, lpme); |
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|
5562 } |
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|
5563 |
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|
5564 |
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|
5565 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
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|
5566 if (!initialized) { |
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|
5567 initialize(); |
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|
5568 } |
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|
5569 return _GetNativeSystemInfo != NULL; |
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|
5570 } |
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|
5571 |
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|
5572 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
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|
5573 assert(initialized && _GetNativeSystemInfo != NULL, |
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|
5574 "GetNativeSystemInfoAvailable() not yet called"); |
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|
5575 |
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|
5576 _GetNativeSystemInfo(lpSystemInfo); |
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|
5577 } |
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|
5578 |
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|
5579 // PSAPI API |
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|
5580 |
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|
5581 |
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|
5582 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
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|
5583 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
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|
5584 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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|
5585 |
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|
5586 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
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5587 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
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5588 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
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5589 BOOL os::PSApiDll::initialized = FALSE; |
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|
5590 |
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5591 void os::PSApiDll::initialize() { |
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5592 if (!initialized) { |
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5593 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
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5594 if (handle != NULL) { |
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5595 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
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5596 "EnumProcessModules"); |
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5597 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
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5598 "GetModuleFileNameExA"); |
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5599 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
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5600 "GetModuleInformation"); |
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|
5601 } |
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5602 initialized = TRUE; |
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|
5603 } |
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|
5604 } |
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|
5605 |
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|
5606 |
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|
5607 |
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5608 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
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5609 assert(initialized && _EnumProcessModules != NULL, |
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5610 "PSApiAvailable() not yet called"); |
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5611 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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5612 } |
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|
5613 |
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5614 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
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5615 assert(initialized && _GetModuleFileNameEx != NULL, |
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|
5616 "PSApiAvailable() not yet called"); |
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5617 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
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|
5618 } |
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|
5619 |
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5620 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
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|
5621 assert(initialized && _GetModuleInformation != NULL, |
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|
5622 "PSApiAvailable() not yet called"); |
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5623 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
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5624 } |
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|
5625 |
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5626 BOOL os::PSApiDll::PSApiAvailable() { |
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|
5627 if (!initialized) { |
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|
5628 initialize(); |
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|
5629 } |
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5630 return _EnumProcessModules != NULL && |
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|
5631 _GetModuleFileNameEx != NULL && |
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|
5632 _GetModuleInformation != NULL; |
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5633 } |
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|
5634 |
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|
5635 |
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|
5636 // WinSock2 API |
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|
5637 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
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5638 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
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|
5639 |
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|
5640 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
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|
5641 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
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|
5642 BOOL os::WinSock2Dll::initialized = FALSE; |
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|
5643 |
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|
5644 void os::WinSock2Dll::initialize() { |
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|
5645 if (!initialized) { |
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|
5646 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
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|
5647 if (handle != NULL) { |
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|
5648 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
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|
5649 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
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|
5650 } |
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|
5651 initialized = TRUE; |
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|
5652 } |
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|
5653 } |
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|
5654 |
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|
5655 |
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|
5656 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
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|
5657 assert(initialized && _WSAStartup != NULL, |
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|
5658 "WinSock2Available() not yet called"); |
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|
5659 return _WSAStartup(wVersionRequested, lpWSAData); |
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|
5660 } |
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|
5661 |
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|
5662 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
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|
5663 assert(initialized && _gethostbyname != NULL, |
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|
5664 "WinSock2Available() not yet called"); |
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|
5665 return _gethostbyname(name); |
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|
5666 } |
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|
5667 |
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|
5668 BOOL os::WinSock2Dll::WinSock2Available() { |
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|
5669 if (!initialized) { |
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|
5670 initialize(); |
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|
5671 } |
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|
5672 return _WSAStartup != NULL && |
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|
5673 _gethostbyname != NULL; |
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|
5674 } |
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|
5675 |
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|
5676 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
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|
5677 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
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|
5678 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
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|
5679 |
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|
5680 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
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|
5681 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
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|
5682 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
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|
5683 BOOL os::Advapi32Dll::initialized = FALSE; |
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|
5684 |
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|
5685 void os::Advapi32Dll::initialize() { |
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|
5686 if (!initialized) { |
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|
5687 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
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|
5688 if (handle != NULL) { |
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|
5689 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
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|
5690 "AdjustTokenPrivileges"); |
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|
5691 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
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|
5692 "OpenProcessToken"); |
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|
5693 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
3834
279ef1916773
7065535: Mistyped function name that disabled UseLargePages on Windows
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|
5694 "LookupPrivilegeValueA"); |
3833
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|
5695 } |
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zgu
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diff
changeset
|
5696 initialized = TRUE; |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5697 } |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5698 } |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5699 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5700 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5701 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5702 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5703 assert(initialized && _AdjustTokenPrivileges != NULL, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5704 "AdvapiAvailable() not yet called"); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5705 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5706 BufferLength, PreviousState, ReturnLength); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5707 } |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5708 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5709 BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5710 PHANDLE TokenHandle) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5711 assert(initialized && _OpenProcessToken != NULL, |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5712 "AdvapiAvailable() not yet called"); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
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|
5713 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5714 } |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5715 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5716 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
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parents:
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diff
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|
5717 assert(initialized && _LookupPrivilegeValue != NULL, |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5718 "AdvapiAvailable() not yet called"); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5719 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5720 } |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
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diff
changeset
|
5721 |
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zgu
parents:
3800
diff
changeset
|
5722 BOOL os::Advapi32Dll::AdvapiAvailable() { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
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|
5723 if (!initialized) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5724 initialize(); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5725 } |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5726 return _AdjustTokenPrivileges != NULL && |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5727 _OpenProcessToken != NULL && |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5728 _LookupPrivilegeValue != NULL; |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5729 } |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5730 |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5731 #endif |
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
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12018
diff
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|
5732 |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
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12018
diff
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|
5733 #ifndef PRODUCT |
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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|
5734 |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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diff
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|
5735 // test the code path in reserve_memory_special() that tries to allocate memory in a single |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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parents:
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diff
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|
5736 // contiguous memory block at a particular address. |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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diff
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|
5737 // The test first tries to find a good approximate address to allocate at by using the same |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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parents:
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diff
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|
5738 // method to allocate some memory at any address. The test then tries to allocate memory in |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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parents:
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diff
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|
5739 // the vicinity (not directly after it to avoid possible by-chance use of that location) |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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parents:
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diff
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|
5740 // This is of course only some dodgy assumption, there is no guarantee that the vicinity of |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
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|
5741 // the previously allocated memory is available for allocation. The only actual failure |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
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|
5742 // that is reported is when the test tries to allocate at a particular location but gets a |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
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|
5743 // different valid one. A NULL return value at this point is not considered an error but may |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5744 // be legitimate. |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5745 // If -XX:+VerboseInternalVMTests is enabled, print some explanatory messages. |
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5746 void TestReserveMemorySpecial_test() { |
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
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|
5747 if (!UseLargePages) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5748 if (VerboseInternalVMTests) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5749 gclog_or_tty->print("Skipping test because large pages are disabled"); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5750 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5751 return; |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5752 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5753 // save current value of globals |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5754 bool old_use_large_pages_individual_allocation = UseLargePagesIndividualAllocation; |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
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|
5755 bool old_use_numa_interleaving = UseNUMAInterleaving; |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5756 |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5757 // set globals to make sure we hit the correct code path |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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diff
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|
5758 UseLargePagesIndividualAllocation = UseNUMAInterleaving = false; |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5759 |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5760 // do an allocation at an address selected by the OS to get a good one. |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
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|
5761 const size_t large_allocation_size = os::large_page_size() * 4; |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5762 char* result = os::reserve_memory_special(large_allocation_size, os::large_page_size(), NULL, false); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5763 if (result == NULL) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5764 if (VerboseInternalVMTests) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5765 gclog_or_tty->print("Failed to allocate control block with size "SIZE_FORMAT". Skipping remainder of test.", |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5766 large_allocation_size); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5767 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5768 } else { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5769 os::release_memory_special(result, large_allocation_size); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5770 |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5771 // allocate another page within the recently allocated memory area which seems to be a good location. At least |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5772 // we managed to get it once. |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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parents:
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diff
changeset
|
5773 const size_t expected_allocation_size = os::large_page_size(); |
f7bc2ab5f659
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diff
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|
5774 char* expected_location = result + os::large_page_size(); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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diff
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|
5775 char* actual_location = os::reserve_memory_special(expected_allocation_size, os::large_page_size(), expected_location, false); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5776 if (actual_location == NULL) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5777 if (VerboseInternalVMTests) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5778 gclog_or_tty->print("Failed to allocate any memory at "PTR_FORMAT" size "SIZE_FORMAT". Skipping remainder of test.", |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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diff
changeset
|
5779 expected_location, large_allocation_size); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5780 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5781 } else { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5782 // release memory |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5783 os::release_memory_special(actual_location, expected_allocation_size); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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diff
changeset
|
5784 // only now check, after releasing any memory to avoid any leaks. |
f7bc2ab5f659
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tschatzl
parents:
12124
diff
changeset
|
5785 assert(actual_location == expected_location, |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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diff
changeset
|
5786 err_msg("Failed to allocate memory at requested location "PTR_FORMAT" of size "SIZE_FORMAT", is "PTR_FORMAT" instead", |
f7bc2ab5f659
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diff
changeset
|
5787 expected_location, expected_allocation_size, actual_location)); |
f7bc2ab5f659
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tschatzl
parents:
12124
diff
changeset
|
5788 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5789 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5790 |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5791 // restore globals |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5792 UseLargePagesIndividualAllocation = old_use_large_pages_individual_allocation; |
f7bc2ab5f659
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diff
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|
5793 UseNUMAInterleaving = old_use_numa_interleaving; |
f7bc2ab5f659
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tschatzl
parents:
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diff
changeset
|
5794 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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12124
diff
changeset
|
5795 #endif // PRODUCT |
f7bc2ab5f659
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tschatzl
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diff
changeset
|
5796 |