Mercurial > hg > graal-jvmci-8
annotate src/os/windows/vm/os_windows.cpp @ 24096:63d6fa35faad
Merge
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Tue, 07 Feb 2017 18:22:03 +0100 |
parents | dd9cc155639c |
children | 719853999215 |
rev | line source |
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0 | 1 /* |
17567 | 2 * Copyright (c) 1997, 2014, 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 | |
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113 #define __CPU__ ia64 |
0 | 114 #else |
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115 #ifdef _M_AMD64 |
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116 #define __CPU__ amd64 |
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117 #else |
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118 #define __CPU__ i486 |
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119 #endif |
0 | 120 #endif |
121 | |
122 // save DLL module handle, used by GetModuleFileName | |
123 | |
124 HINSTANCE vm_lib_handle; | |
125 | |
126 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
127 switch (reason) { | |
128 case DLL_PROCESS_ATTACH: | |
129 vm_lib_handle = hinst; | |
130 if(ForceTimeHighResolution) | |
131 timeBeginPeriod(1L); | |
132 break; | |
133 case DLL_PROCESS_DETACH: | |
134 if(ForceTimeHighResolution) | |
135 timeEndPeriod(1L); | |
20360 | 136 |
0 | 137 break; |
138 default: | |
139 break; | |
140 } | |
141 return true; | |
142 } | |
143 | |
144 static inline double fileTimeAsDouble(FILETIME* time) { | |
145 const double high = (double) ((unsigned int) ~0); | |
146 const double split = 10000000.0; | |
147 double result = (time->dwLowDateTime / split) + | |
148 time->dwHighDateTime * (high/split); | |
149 return result; | |
150 } | |
151 | |
152 // Implementation of os | |
153 | |
154 bool os::getenv(const char* name, char* buffer, int len) { | |
155 int result = GetEnvironmentVariable(name, buffer, len); | |
156 return result > 0 && result < len; | |
157 } | |
158 | |
20360 | 159 bool os::unsetenv(const char* name) { |
160 assert(name != NULL, "Null pointer"); | |
161 return (SetEnvironmentVariable(name, NULL) == TRUE); | |
162 } | |
0 | 163 |
164 // No setuid programs under Windows. | |
165 bool os::have_special_privileges() { | |
166 return false; | |
167 } | |
168 | |
169 | |
170 // This method is a periodic task to check for misbehaving JNI applications | |
171 // under CheckJNI, we can add any periodic checks here. | |
172 // For Windows at the moment does nothing | |
173 void os::run_periodic_checks() { | |
174 return; | |
175 } | |
176 | |
177 #ifndef _WIN64 | |
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178 // previous UnhandledExceptionFilter, if there is one |
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179 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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180 |
0 | 181 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
182 #endif | |
183 void os::init_system_properties_values() { | |
184 /* sysclasspath, java_home, dll_dir */ | |
185 { | |
186 char *home_path; | |
187 char *dll_path; | |
188 char *pslash; | |
189 char *bin = "\\bin"; | |
190 char home_dir[MAX_PATH]; | |
191 | |
192 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
193 os::jvm_path(home_dir, sizeof(home_dir)); | |
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194 // Found the full path to jvm.dll. |
0 | 195 // Now cut the path to <java_home>/jre if we can. |
196 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
197 pslash = strrchr(home_dir, '\\'); | |
198 if (pslash != NULL) { | |
199 *pslash = '\0'; /* get rid of \{client|server} */ | |
200 pslash = strrchr(home_dir, '\\'); | |
201 if (pslash != NULL) | |
202 *pslash = '\0'; /* get rid of \bin */ | |
203 } | |
204 } | |
205 | |
6197 | 206 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1, mtInternal); |
0 | 207 if (home_path == NULL) |
208 return; | |
209 strcpy(home_path, home_dir); | |
210 Arguments::set_java_home(home_path); | |
211 | |
6197 | 212 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1, mtInternal); |
0 | 213 if (dll_path == NULL) |
214 return; | |
215 strcpy(dll_path, home_dir); | |
216 strcat(dll_path, bin); | |
217 Arguments::set_dll_dir(dll_path); | |
218 | |
219 if (!set_boot_path('\\', ';')) | |
220 return; | |
221 } | |
222 | |
223 /* library_path */ | |
224 #define EXT_DIR "\\lib\\ext" | |
225 #define BIN_DIR "\\bin" | |
226 #define PACKAGE_DIR "\\Sun\\Java" | |
227 { | |
228 /* Win32 library search order (See the documentation for LoadLibrary): | |
229 * | |
230 * 1. The directory from which application is loaded. | |
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231 * 2. The system wide Java Extensions directory (Java only) |
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232 * 3. System directory (GetSystemDirectory) |
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233 * 4. Windows directory (GetWindowsDirectory) |
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234 * 5. The PATH environment variable |
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235 * 6. The current directory |
0 | 236 */ |
237 | |
238 char *library_path; | |
239 char tmp[MAX_PATH]; | |
240 char *path_str = ::getenv("PATH"); | |
241 | |
242 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
6197 | 243 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10, mtInternal); |
0 | 244 |
245 library_path[0] = '\0'; | |
246 | |
247 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
248 *(strrchr(tmp, '\\')) = '\0'; | |
249 strcat(library_path, tmp); | |
250 | |
251 GetWindowsDirectory(tmp, sizeof(tmp)); | |
252 strcat(library_path, ";"); | |
253 strcat(library_path, tmp); | |
254 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
255 | |
256 GetSystemDirectory(tmp, sizeof(tmp)); | |
257 strcat(library_path, ";"); | |
258 strcat(library_path, tmp); | |
259 | |
260 GetWindowsDirectory(tmp, sizeof(tmp)); | |
261 strcat(library_path, ";"); | |
262 strcat(library_path, tmp); | |
263 | |
264 if (path_str) { | |
265 strcat(library_path, ";"); | |
266 strcat(library_path, path_str); | |
267 } | |
268 | |
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269 strcat(library_path, ";."); |
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270 |
0 | 271 Arguments::set_library_path(library_path); |
6197 | 272 FREE_C_HEAP_ARRAY(char, library_path, mtInternal); |
0 | 273 } |
274 | |
275 /* Default extensions directory */ | |
276 { | |
277 char path[MAX_PATH]; | |
278 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
279 GetWindowsDirectory(path, MAX_PATH); | |
280 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
281 path, PACKAGE_DIR, EXT_DIR); | |
282 Arguments::set_ext_dirs(buf); | |
283 } | |
284 #undef EXT_DIR | |
285 #undef BIN_DIR | |
286 #undef PACKAGE_DIR | |
287 | |
288 /* Default endorsed standards directory. */ | |
289 { | |
290 #define ENDORSED_DIR "\\lib\\endorsed" | |
291 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
6197 | 292 char * buf = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 293 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); |
294 Arguments::set_endorsed_dirs(buf); | |
295 #undef ENDORSED_DIR | |
296 } | |
297 | |
298 #ifndef _WIN64 | |
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299 // set our UnhandledExceptionFilter and save any previous one |
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300 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
0 | 301 #endif |
302 | |
303 // Done | |
304 return; | |
305 } | |
306 | |
307 void os::breakpoint() { | |
308 DebugBreak(); | |
309 } | |
310 | |
311 // Invoked from the BREAKPOINT Macro | |
312 extern "C" void breakpoint() { | |
313 os::breakpoint(); | |
314 } | |
315 | |
6197 | 316 /* |
317 * RtlCaptureStackBackTrace Windows API may not exist prior to Windows XP. | |
318 * So far, this method is only used by Native Memory Tracking, which is | |
319 * only supported on Windows XP or later. | |
320 */ | |
20360 | 321 |
322 int os::get_native_stack(address* stack, int frames, int toSkip) { | |
6197 | 323 #ifdef _NMT_NOINLINE_ |
20360 | 324 toSkip ++; |
6197 | 325 #endif |
20360 | 326 int captured = Kernel32Dll::RtlCaptureStackBackTrace(toSkip + 1, frames, |
327 (PVOID*)stack, NULL); | |
328 for (int index = captured; index < frames; index ++) { | |
329 stack[index] = NULL; | |
330 } | |
331 return captured; | |
6197 | 332 } |
333 | |
334 | |
0 | 335 // os::current_stack_base() |
336 // | |
337 // Returns the base of the stack, which is the stack's | |
338 // starting address. This function must be called | |
339 // while running on the stack of the thread being queried. | |
340 | |
341 address os::current_stack_base() { | |
342 MEMORY_BASIC_INFORMATION minfo; | |
343 address stack_bottom; | |
344 size_t stack_size; | |
345 | |
346 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
347 stack_bottom = (address)minfo.AllocationBase; | |
348 stack_size = minfo.RegionSize; | |
349 | |
350 // Add up the sizes of all the regions with the same | |
351 // AllocationBase. | |
352 while( 1 ) | |
353 { | |
354 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
355 if ( stack_bottom == (address)minfo.AllocationBase ) | |
356 stack_size += minfo.RegionSize; | |
357 else | |
358 break; | |
359 } | |
360 | |
361 #ifdef _M_IA64 | |
362 // IA64 has memory and register stacks | |
7994 | 363 // |
364 // This is the stack layout you get on NT/IA64 if you specify 1MB stack limit | |
365 // at thread creation (1MB backing store growing upwards, 1MB memory stack | |
366 // growing downwards, 2MB summed up) | |
367 // | |
368 // ... | |
369 // ------- top of stack (high address) ----- | |
370 // | | |
371 // | 1MB | |
372 // | Backing Store (Register Stack) | |
373 // | | |
374 // | / \ | |
375 // | | | |
376 // | | | |
377 // | | | |
378 // ------------------------ stack base ----- | |
379 // | 1MB | |
380 // | Memory Stack | |
381 // | | |
382 // | | | |
383 // | | | |
384 // | | | |
385 // | \ / | |
386 // | | |
387 // ----- bottom of stack (low address) ----- | |
388 // ... | |
389 | |
0 | 390 stack_size = stack_size / 2; |
391 #endif | |
392 return stack_bottom + stack_size; | |
393 } | |
394 | |
395 size_t os::current_stack_size() { | |
396 size_t sz; | |
397 MEMORY_BASIC_INFORMATION minfo; | |
398 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
399 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
400 return sz; | |
401 } | |
402 | |
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403 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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404 const struct tm* time_struct_ptr = localtime(clock); |
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405 if (time_struct_ptr != NULL) { |
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406 *res = *time_struct_ptr; |
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407 return res; |
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408 } |
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409 return NULL; |
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410 } |
0 | 411 |
412 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
413 | |
414 // Thread start routine for all new Java threads | |
415 static unsigned __stdcall java_start(Thread* thread) { | |
416 // Try to randomize the cache line index of hot stack frames. | |
417 // This helps when threads of the same stack traces evict each other's | |
418 // cache lines. The threads can be either from the same JVM instance, or | |
419 // from different JVM instances. The benefit is especially true for | |
420 // processors with hyperthreading technology. | |
421 static int counter = 0; | |
422 int pid = os::current_process_id(); | |
423 _alloca(((pid ^ counter++) & 7) * 128); | |
424 | |
425 OSThread* osthr = thread->osthread(); | |
426 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
427 | |
428 if (UseNUMA) { | |
429 int lgrp_id = os::numa_get_group_id(); | |
430 if (lgrp_id != -1) { | |
431 thread->set_lgrp_id(lgrp_id); | |
432 } | |
433 } | |
434 | |
435 | |
6916 | 436 // Install a win32 structured exception handler around every thread created |
437 // by VM, so VM can genrate error dump when an exception occurred in non- | |
438 // Java thread (e.g. VM thread). | |
439 __try { | |
440 thread->run(); | |
441 } __except(topLevelExceptionFilter( | |
442 (_EXCEPTION_POINTERS*)_exception_info())) { | |
443 // Nothing to do. | |
0 | 444 } |
445 | |
446 // One less thread is executing | |
447 // When the VMThread gets here, the main thread may have already exited | |
448 // which frees the CodeHeap containing the Atomic::add code | |
449 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
450 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
451 } | |
452 | |
453 return 0; | |
454 } | |
455 | |
456 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
457 // Allocate the OSThread object | |
458 OSThread* osthread = new OSThread(NULL, NULL); | |
459 if (osthread == NULL) return NULL; | |
460 | |
461 // Initialize support for Java interrupts | |
462 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
463 if (interrupt_event == NULL) { | |
464 delete osthread; | |
465 return NULL; | |
466 } | |
467 osthread->set_interrupt_event(interrupt_event); | |
468 | |
469 // Store info on the Win32 thread into the OSThread | |
470 osthread->set_thread_handle(thread_handle); | |
471 osthread->set_thread_id(thread_id); | |
472 | |
473 if (UseNUMA) { | |
474 int lgrp_id = os::numa_get_group_id(); | |
475 if (lgrp_id != -1) { | |
476 thread->set_lgrp_id(lgrp_id); | |
477 } | |
478 } | |
479 | |
480 // Initial thread state is INITIALIZED, not SUSPENDED | |
481 osthread->set_state(INITIALIZED); | |
482 | |
483 return osthread; | |
484 } | |
485 | |
486 | |
487 bool os::create_attached_thread(JavaThread* thread) { | |
488 #ifdef ASSERT | |
489 thread->verify_not_published(); | |
490 #endif | |
491 HANDLE thread_h; | |
492 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
493 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
494 fatal("DuplicateHandle failed\n"); | |
495 } | |
496 OSThread* osthread = create_os_thread(thread, thread_h, | |
497 (int)current_thread_id()); | |
498 if (osthread == NULL) { | |
499 return false; | |
500 } | |
501 | |
502 // Initial thread state is RUNNABLE | |
503 osthread->set_state(RUNNABLE); | |
504 | |
505 thread->set_osthread(osthread); | |
506 return true; | |
507 } | |
508 | |
509 bool os::create_main_thread(JavaThread* thread) { | |
510 #ifdef ASSERT | |
511 thread->verify_not_published(); | |
512 #endif | |
513 if (_starting_thread == NULL) { | |
514 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
515 if (_starting_thread == NULL) { | |
516 return false; | |
517 } | |
518 } | |
519 | |
520 // The primordial thread is runnable from the start) | |
521 _starting_thread->set_state(RUNNABLE); | |
522 | |
523 thread->set_osthread(_starting_thread); | |
524 return true; | |
525 } | |
526 | |
527 // Allocate and initialize a new OSThread | |
528 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
529 unsigned thread_id; | |
530 | |
531 // Allocate the OSThread object | |
532 OSThread* osthread = new OSThread(NULL, NULL); | |
533 if (osthread == NULL) { | |
534 return false; | |
535 } | |
536 | |
537 // Initialize support for Java interrupts | |
538 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
539 if (interrupt_event == NULL) { | |
540 delete osthread; | |
541 return NULL; | |
542 } | |
543 osthread->set_interrupt_event(interrupt_event); | |
544 osthread->set_interrupted(false); | |
545 | |
546 thread->set_osthread(osthread); | |
547 | |
548 if (stack_size == 0) { | |
549 switch (thr_type) { | |
550 case os::java_thread: | |
551 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
552 if (JavaThread::stack_size_at_create() > 0) | |
553 stack_size = JavaThread::stack_size_at_create(); | |
554 break; | |
555 case os::compiler_thread: | |
556 if (CompilerThreadStackSize > 0) { | |
557 stack_size = (size_t)(CompilerThreadStackSize * K); | |
558 break; | |
559 } // else fall through: | |
560 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
561 case os::vm_thread: | |
562 case os::pgc_thread: | |
563 case os::cgc_thread: | |
564 case os::watcher_thread: | |
565 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
566 break; | |
567 } | |
568 } | |
569 | |
570 // Create the Win32 thread | |
571 // | |
572 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
573 // does not specify stack size. Instead, it specifies the size of | |
574 // initially committed space. The stack size is determined by | |
575 // PE header in the executable. If the committed "stack_size" is larger | |
576 // than default value in the PE header, the stack is rounded up to the | |
577 // nearest multiple of 1MB. For example if the launcher has default | |
578 // stack size of 320k, specifying any size less than 320k does not | |
579 // affect the actual stack size at all, it only affects the initial | |
580 // commitment. On the other hand, specifying 'stack_size' larger than | |
581 // default value may cause significant increase in memory usage, because | |
582 // not only the stack space will be rounded up to MB, but also the | |
583 // entire space is committed upfront. | |
584 // | |
585 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
586 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
587 // are not supposed to call CreateThread() directly according to MSDN | |
588 // document because JVM uses C runtime library. The good news is that the | |
589 // flag appears to work with _beginthredex() as well. | |
590 | |
591 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
592 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
593 #endif | |
594 | |
595 HANDLE thread_handle = | |
596 (HANDLE)_beginthreadex(NULL, | |
597 (unsigned)stack_size, | |
598 (unsigned (__stdcall *)(void*)) java_start, | |
599 thread, | |
600 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
601 &thread_id); | |
602 if (thread_handle == NULL) { | |
603 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
604 // without the flag. | |
605 thread_handle = | |
606 (HANDLE)_beginthreadex(NULL, | |
607 (unsigned)stack_size, | |
608 (unsigned (__stdcall *)(void*)) java_start, | |
609 thread, | |
610 CREATE_SUSPENDED, | |
611 &thread_id); | |
612 } | |
613 if (thread_handle == NULL) { | |
614 // Need to clean up stuff we've allocated so far | |
615 CloseHandle(osthread->interrupt_event()); | |
616 thread->set_osthread(NULL); | |
617 delete osthread; | |
618 return NULL; | |
619 } | |
620 | |
621 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
622 | |
623 // Store info on the Win32 thread into the OSThread | |
624 osthread->set_thread_handle(thread_handle); | |
625 osthread->set_thread_id(thread_id); | |
626 | |
627 // Initial thread state is INITIALIZED, not SUSPENDED | |
628 osthread->set_state(INITIALIZED); | |
629 | |
630 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
631 return true; | |
632 } | |
633 | |
634 | |
635 // Free Win32 resources related to the OSThread | |
636 void os::free_thread(OSThread* osthread) { | |
637 assert(osthread != NULL, "osthread not set"); | |
638 CloseHandle(osthread->thread_handle()); | |
639 CloseHandle(osthread->interrupt_event()); | |
640 delete osthread; | |
641 } | |
642 | |
643 | |
644 static int has_performance_count = 0; | |
645 static jlong first_filetime; | |
646 static jlong initial_performance_count; | |
647 static jlong performance_frequency; | |
648 | |
649 | |
650 jlong as_long(LARGE_INTEGER x) { | |
651 jlong result = 0; // initialization to avoid warning | |
652 set_high(&result, x.HighPart); | |
653 set_low(&result, x.LowPart); | |
654 return result; | |
655 } | |
656 | |
657 | |
658 jlong os::elapsed_counter() { | |
659 LARGE_INTEGER count; | |
660 if (has_performance_count) { | |
661 QueryPerformanceCounter(&count); | |
662 return as_long(count) - initial_performance_count; | |
663 } else { | |
664 FILETIME wt; | |
665 GetSystemTimeAsFileTime(&wt); | |
666 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
667 } | |
668 } | |
669 | |
670 | |
671 jlong os::elapsed_frequency() { | |
672 if (has_performance_count) { | |
673 return performance_frequency; | |
674 } else { | |
675 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
676 return 10000000; | |
677 } | |
678 } | |
679 | |
680 | |
681 julong os::available_memory() { | |
682 return win32::available_memory(); | |
683 } | |
684 | |
685 julong os::win32::available_memory() { | |
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686 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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687 // value if total memory is larger than 4GB |
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688 MEMORYSTATUSEX ms; |
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689 ms.dwLength = sizeof(ms); |
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690 GlobalMemoryStatusEx(&ms); |
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691 |
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692 return (julong)ms.ullAvailPhys; |
0 | 693 } |
694 | |
695 julong os::physical_memory() { | |
696 return win32::physical_memory(); | |
697 } | |
698 | |
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699 bool os::has_allocatable_memory_limit(julong* limit) { |
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700 MEMORYSTATUSEX ms; |
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701 ms.dwLength = sizeof(ms); |
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702 GlobalMemoryStatusEx(&ms); |
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703 #ifdef _LP64 |
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704 *limit = (julong)ms.ullAvailVirtual; |
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705 return true; |
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706 #else |
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707 // Limit to 1400m because of the 2gb address space wall |
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708 *limit = MIN2((julong)1400*M, (julong)ms.ullAvailVirtual); |
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709 return true; |
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710 #endif |
0 | 711 } |
712 | |
713 // VC6 lacks DWORD_PTR | |
714 #if _MSC_VER < 1300 | |
715 typedef UINT_PTR DWORD_PTR; | |
716 #endif | |
717 | |
718 int os::active_processor_count() { | |
719 DWORD_PTR lpProcessAffinityMask = 0; | |
720 DWORD_PTR lpSystemAffinityMask = 0; | |
721 int proc_count = processor_count(); | |
722 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
723 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
724 // Nof active processors is number of bits in process affinity mask | |
725 int bitcount = 0; | |
726 while (lpProcessAffinityMask != 0) { | |
727 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
728 bitcount++; | |
729 } | |
730 return bitcount; | |
731 } else { | |
732 return proc_count; | |
733 } | |
734 } | |
735 | |
4006 | 736 void os::set_native_thread_name(const char *name) { |
737 // Not yet implemented. | |
738 return; | |
739 } | |
740 | |
0 | 741 bool os::distribute_processes(uint length, uint* distribution) { |
742 // Not yet implemented. | |
743 return false; | |
744 } | |
745 | |
746 bool os::bind_to_processor(uint processor_id) { | |
747 // Not yet implemented. | |
748 return false; | |
749 } | |
750 | |
751 static void initialize_performance_counter() { | |
752 LARGE_INTEGER count; | |
753 if (QueryPerformanceFrequency(&count)) { | |
754 has_performance_count = 1; | |
755 performance_frequency = as_long(count); | |
756 QueryPerformanceCounter(&count); | |
757 initial_performance_count = as_long(count); | |
758 } else { | |
759 has_performance_count = 0; | |
760 FILETIME wt; | |
761 GetSystemTimeAsFileTime(&wt); | |
762 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
763 } | |
764 } | |
765 | |
766 | |
767 double os::elapsedTime() { | |
768 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
769 } | |
770 | |
771 | |
772 // Windows format: | |
773 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
774 // Java format: | |
775 // Java standards require the number of milliseconds since 1/1/1970 | |
776 | |
777 // Constant offset - calculated using offset() | |
778 static jlong _offset = 116444736000000000; | |
779 // Fake time counter for reproducible results when debugging | |
780 static jlong fake_time = 0; | |
781 | |
782 #ifdef ASSERT | |
783 // Just to be safe, recalculate the offset in debug mode | |
784 static jlong _calculated_offset = 0; | |
785 static int _has_calculated_offset = 0; | |
786 | |
787 jlong offset() { | |
788 if (_has_calculated_offset) return _calculated_offset; | |
789 SYSTEMTIME java_origin; | |
790 java_origin.wYear = 1970; | |
791 java_origin.wMonth = 1; | |
792 java_origin.wDayOfWeek = 0; // ignored | |
793 java_origin.wDay = 1; | |
794 java_origin.wHour = 0; | |
795 java_origin.wMinute = 0; | |
796 java_origin.wSecond = 0; | |
797 java_origin.wMilliseconds = 0; | |
798 FILETIME jot; | |
799 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
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800 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
0 | 801 } |
802 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
803 _has_calculated_offset = 1; | |
804 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
805 return _calculated_offset; | |
806 } | |
807 #else | |
808 jlong offset() { | |
809 return _offset; | |
810 } | |
811 #endif | |
812 | |
813 jlong windows_to_java_time(FILETIME wt) { | |
814 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
815 return (a - offset()) / 10000; | |
816 } | |
817 | |
818 FILETIME java_to_windows_time(jlong l) { | |
819 jlong a = (l * 10000) + offset(); | |
820 FILETIME result; | |
821 result.dwHighDateTime = high(a); | |
822 result.dwLowDateTime = low(a); | |
823 return result; | |
824 } | |
825 | |
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826 bool os::supports_vtime() { return true; } |
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827 bool os::enable_vtime() { return false; } |
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828 bool os::vtime_enabled() { return false; } |
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829 |
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830 double os::elapsedVTime() { |
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831 FILETIME created; |
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832 FILETIME exited; |
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833 FILETIME kernel; |
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834 FILETIME user; |
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835 if (GetThreadTimes(GetCurrentThread(), &created, &exited, &kernel, &user) != 0) { |
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836 // the resolution of windows_to_java_time() should be sufficient (ms) |
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837 return (double) (windows_to_java_time(kernel) + windows_to_java_time(user)) / MILLIUNITS; |
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838 } else { |
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839 return elapsedTime(); |
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840 } |
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841 } |
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842 |
0 | 843 jlong os::javaTimeMillis() { |
844 if (UseFakeTimers) { | |
845 return fake_time++; | |
846 } else { | |
61 | 847 FILETIME wt; |
848 GetSystemTimeAsFileTime(&wt); | |
849 return windows_to_java_time(wt); | |
0 | 850 } |
851 } | |
852 | |
853 jlong os::javaTimeNanos() { | |
854 if (!has_performance_count) { | |
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855 return javaTimeMillis() * NANOSECS_PER_MILLISEC; // the best we can do. |
0 | 856 } else { |
857 LARGE_INTEGER current_count; | |
858 QueryPerformanceCounter(¤t_count); | |
859 double current = as_long(current_count); | |
860 double freq = performance_frequency; | |
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861 jlong time = (jlong)((current/freq) * NANOSECS_PER_SEC); |
0 | 862 return time; |
863 } | |
864 } | |
865 | |
866 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
867 if (!has_performance_count) { | |
868 // javaTimeMillis() doesn't have much percision, | |
869 // but it is not going to wrap -- so all 64 bits | |
870 info_ptr->max_value = ALL_64_BITS; | |
871 | |
872 // this is a wall clock timer, so may skip | |
873 info_ptr->may_skip_backward = true; | |
874 info_ptr->may_skip_forward = true; | |
875 } else { | |
876 jlong freq = performance_frequency; | |
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877 if (freq < NANOSECS_PER_SEC) { |
0 | 878 // the performance counter is 64 bits and we will |
879 // be multiplying it -- so no wrap in 64 bits | |
880 info_ptr->max_value = ALL_64_BITS; | |
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881 } else if (freq > NANOSECS_PER_SEC) { |
0 | 882 // use the max value the counter can reach to |
883 // determine the max value which could be returned | |
884 julong max_counter = (julong)ALL_64_BITS; | |
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885 info_ptr->max_value = (jlong)(max_counter / (freq / NANOSECS_PER_SEC)); |
0 | 886 } else { |
887 // the performance counter is 64 bits and we will | |
888 // be using it directly -- so no wrap in 64 bits | |
889 info_ptr->max_value = ALL_64_BITS; | |
890 } | |
891 | |
892 // using a counter, so no skipping | |
893 info_ptr->may_skip_backward = false; | |
894 info_ptr->may_skip_forward = false; | |
895 } | |
896 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
897 } | |
898 | |
899 char* os::local_time_string(char *buf, size_t buflen) { | |
900 SYSTEMTIME st; | |
901 GetLocalTime(&st); | |
902 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
903 st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); | |
904 return buf; | |
905 } | |
906 | |
907 bool os::getTimesSecs(double* process_real_time, | |
908 double* process_user_time, | |
909 double* process_system_time) { | |
910 HANDLE h_process = GetCurrentProcess(); | |
911 FILETIME create_time, exit_time, kernel_time, user_time; | |
912 BOOL result = GetProcessTimes(h_process, | |
913 &create_time, | |
914 &exit_time, | |
915 &kernel_time, | |
916 &user_time); | |
917 if (result != 0) { | |
918 FILETIME wt; | |
919 GetSystemTimeAsFileTime(&wt); | |
920 jlong rtc_millis = windows_to_java_time(wt); | |
921 jlong user_millis = windows_to_java_time(user_time); | |
922 jlong system_millis = windows_to_java_time(kernel_time); | |
923 *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS); | |
924 *process_user_time = ((double) user_millis) / ((double) MILLIUNITS); | |
925 *process_system_time = ((double) system_millis) / ((double) MILLIUNITS); | |
926 return true; | |
927 } else { | |
928 return false; | |
929 } | |
930 } | |
931 | |
932 void os::shutdown() { | |
933 | |
934 // allow PerfMemory to attempt cleanup of any persistent resources | |
935 perfMemory_exit(); | |
936 | |
937 // flush buffered output, finish log files | |
938 ostream_abort(); | |
939 | |
940 // Check for abort hook | |
941 abort_hook_t abort_hook = Arguments::abort_hook(); | |
942 if (abort_hook != NULL) { | |
943 abort_hook(); | |
944 } | |
945 } | |
946 | |
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947 |
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948 static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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949 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
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950 |
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951 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { |
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952 HINSTANCE dbghelp; |
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953 EXCEPTION_POINTERS ep; |
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954 MINIDUMP_EXCEPTION_INFORMATION mei; |
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955 MINIDUMP_EXCEPTION_INFORMATION* pmei; |
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956 |
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957 HANDLE hProcess = GetCurrentProcess(); |
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958 DWORD processId = GetCurrentProcessId(); |
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959 HANDLE dumpFile; |
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960 MINIDUMP_TYPE dumpType; |
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961 static const char* cwd; |
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962 |
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963 // Default is to always create dump for debug builds, on product builds only dump on server versions of Windows. |
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964 #ifndef ASSERT |
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965 // If running on a client version of Windows and user has not explicitly enabled dumping |
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966 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) { |
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967 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false); |
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968 return; |
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969 // If running on a server version of Windows and user has explictly disabled dumping |
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970 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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971 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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972 return; |
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973 } |
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974 #else |
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975 if (!FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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976 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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977 return; |
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978 } |
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979 #endif |
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980 |
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981 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0); |
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982 |
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983 if (dbghelp == NULL) { |
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984 VMError::report_coredump_status("Failed to load dbghelp.dll", false); |
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985 return; |
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986 } |
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987 |
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988 _MiniDumpWriteDump = CAST_TO_FN_PTR( |
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989 BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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990 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION), |
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991 GetProcAddress(dbghelp, "MiniDumpWriteDump")); |
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992 |
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993 if (_MiniDumpWriteDump == NULL) { |
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994 VMError::report_coredump_status("Failed to find MiniDumpWriteDump() in module dbghelp.dll", false); |
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995 return; |
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996 } |
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997 |
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998 dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
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999 |
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1000 // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
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1001 // API_VERSION_NUMBER 11 or higher contains the ones we want though |
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1002 #if API_VERSION_NUMBER >= 11 |
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1003 dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
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1004 MiniDumpWithUnloadedModules); |
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1005 #endif |
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1006 |
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1007 cwd = get_current_directory(NULL, 0); |
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1008 jio_snprintf(buffer, bufferSize, "%s\\hs_err_pid%u.mdmp",cwd, current_process_id()); |
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1009 dumpFile = CreateFile(buffer, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
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1010 |
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1011 if (dumpFile == INVALID_HANDLE_VALUE) { |
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1012 VMError::report_coredump_status("Failed to create file for dumping", false); |
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1013 return; |
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1014 } |
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1015 if (exceptionRecord != NULL && contextRecord != NULL) { |
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1016 ep.ContextRecord = (PCONTEXT) contextRecord; |
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1017 ep.ExceptionRecord = (PEXCEPTION_RECORD) exceptionRecord; |
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1018 |
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1019 mei.ThreadId = GetCurrentThreadId(); |
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1020 mei.ExceptionPointers = &ep; |
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1021 pmei = &mei; |
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1022 } else { |
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1023 pmei = NULL; |
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1024 } |
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1025 |
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1026 |
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1027 // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
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1028 // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
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1029 if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == false && |
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1030 _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == false) { |
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1031 DWORD error = GetLastError(); |
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1032 LPTSTR msgbuf = NULL; |
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1033 |
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1034 if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | |
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1035 FORMAT_MESSAGE_FROM_SYSTEM | |
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1036 FORMAT_MESSAGE_IGNORE_INSERTS, |
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1037 NULL, error, 0, (LPTSTR)&msgbuf, 0, NULL) != 0) { |
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1038 |
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1039 jio_snprintf(buffer, bufferSize, "Call to MiniDumpWriteDump() failed (Error 0x%x: %s)", error, msgbuf); |
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1040 LocalFree(msgbuf); |
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1041 } else { |
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1042 // Call to FormatMessage failed, just include the result from GetLastError |
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1043 jio_snprintf(buffer, bufferSize, "Call to MiniDumpWriteDump() failed (Error 0x%x)", error); |
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1044 } |
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1045 VMError::report_coredump_status(buffer, false); |
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1046 } else { |
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1047 VMError::report_coredump_status(buffer, true); |
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1048 } |
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1049 |
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1050 CloseHandle(dumpFile); |
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1051 } |
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1052 |
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1053 |
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1054 |
0 | 1055 void os::abort(bool dump_core) |
1056 { | |
1057 os::shutdown(); | |
1058 // no core dump on Windows | |
1059 ::exit(1); | |
1060 } | |
1061 | |
1062 // Die immediately, no exit hook, no abort hook, no cleanup. | |
1063 void os::die() { | |
1064 _exit(-1); | |
1065 } | |
1066 | |
1067 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
1068 // * dirent_md.c 1.15 00/02/02 | |
1069 // | |
1070 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
1071 | |
1072 /* Caller must have already run dirname through JVM_NativePath, which removes | |
1073 duplicate slashes and converts all instances of '/' into '\\'. */ | |
1074 | |
1075 DIR * | |
1076 os::opendir(const char *dirname) | |
1077 { | |
1078 assert(dirname != NULL, "just checking"); // hotspot change | |
6197 | 1079 DIR *dirp = (DIR *)malloc(sizeof(DIR), mtInternal); |
0 | 1080 DWORD fattr; // hotspot change |
1081 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
1082 | |
1083 if (dirp == 0) { | |
1084 errno = ENOMEM; | |
1085 return 0; | |
1086 } | |
1087 | |
1088 /* | |
1089 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
1090 * as a directory in FindFirstFile(). We detect this case here and | |
1091 * prepend the current drive name. | |
1092 */ | |
1093 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
1094 alt_dirname[0] = _getdrive() + 'A' - 1; | |
1095 alt_dirname[1] = ':'; | |
1096 alt_dirname[2] = '\\'; | |
1097 alt_dirname[3] = '\0'; | |
1098 dirname = alt_dirname; | |
1099 } | |
1100 | |
6197 | 1101 dirp->path = (char *)malloc(strlen(dirname) + 5, mtInternal); |
0 | 1102 if (dirp->path == 0) { |
6197 | 1103 free(dirp, mtInternal); |
0 | 1104 errno = ENOMEM; |
1105 return 0; | |
1106 } | |
1107 strcpy(dirp->path, dirname); | |
1108 | |
1109 fattr = GetFileAttributes(dirp->path); | |
1110 if (fattr == 0xffffffff) { | |
6197 | 1111 free(dirp->path, mtInternal); |
1112 free(dirp, mtInternal); | |
0 | 1113 errno = ENOENT; |
1114 return 0; | |
1115 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
6197 | 1116 free(dirp->path, mtInternal); |
1117 free(dirp, mtInternal); | |
0 | 1118 errno = ENOTDIR; |
1119 return 0; | |
1120 } | |
1121 | |
1122 /* Append "*.*", or possibly "\\*.*", to path */ | |
1123 if (dirp->path[1] == ':' | |
1124 && (dirp->path[2] == '\0' | |
1125 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
1126 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
1127 strcat(dirp->path, "*.*"); | |
1128 } else { | |
1129 strcat(dirp->path, "\\*.*"); | |
1130 } | |
1131 | |
1132 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
1133 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
1134 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
6197 | 1135 free(dirp->path, mtInternal); |
1136 free(dirp, mtInternal); | |
0 | 1137 errno = EACCES; |
1138 return 0; | |
1139 } | |
1140 } | |
1141 return dirp; | |
1142 } | |
1143 | |
1144 /* parameter dbuf unused on Windows */ | |
1145 | |
1146 struct dirent * | |
1147 os::readdir(DIR *dirp, dirent *dbuf) | |
1148 { | |
1149 assert(dirp != NULL, "just checking"); // hotspot change | |
1150 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
1151 return 0; | |
1152 } | |
1153 | |
1154 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
1155 | |
1156 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
1157 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
1158 errno = EBADF; | |
1159 return 0; | |
1160 } | |
1161 FindClose(dirp->handle); | |
1162 dirp->handle = INVALID_HANDLE_VALUE; | |
1163 } | |
1164 | |
1165 return &dirp->dirent; | |
1166 } | |
1167 | |
1168 int | |
1169 os::closedir(DIR *dirp) | |
1170 { | |
1171 assert(dirp != NULL, "just checking"); // hotspot change | |
1172 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
1173 if (!FindClose(dirp->handle)) { | |
1174 errno = EBADF; | |
1175 return -1; | |
1176 } | |
1177 dirp->handle = INVALID_HANDLE_VALUE; | |
1178 } | |
6197 | 1179 free(dirp->path, mtInternal); |
1180 free(dirp, mtInternal); | |
0 | 1181 return 0; |
1182 } | |
1183 | |
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1184 // This must be hard coded because it's the system's temporary |
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1185 // directory not the java application's temp directory, ala java.io.tmpdir. |
1353
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1186 const char* os::get_temp_directory() { |
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1187 static char path_buf[MAX_PATH]; |
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1188 if (GetTempPath(MAX_PATH, path_buf)>0) |
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1189 return path_buf; |
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|
1190 else{ |
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|
1191 path_buf[0]='\0'; |
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1192 return path_buf; |
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|
1193 } |
0 | 1194 } |
1195 | |
691 | 1196 static bool file_exists(const char* filename) { |
1197 if (filename == NULL || strlen(filename) == 0) { | |
1198 return false; | |
1199 } | |
1200 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
1201 } | |
1202 | |
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|
1203 bool os::dll_build_name(char *buffer, size_t buflen, |
691 | 1204 const char* pname, const char* fname) { |
6966
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8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
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|
1205 bool retval = false; |
691 | 1206 const size_t pnamelen = pname ? strlen(pname) : 0; |
1207 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
1208 | |
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|
1209 // Return error on buffer overflow. |
691 | 1210 if (pnamelen + strlen(fname) + 10 > buflen) { |
6966
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|
1211 return retval; |
691 | 1212 } |
1213 | |
1214 if (pnamelen == 0) { | |
1215 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
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|
1216 retval = true; |
691 | 1217 } else if (c == ':' || c == '\\') { |
1218 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
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|
1219 retval = true; |
691 | 1220 } else if (strchr(pname, *os::path_separator()) != NULL) { |
1221 int n; | |
1222 char** pelements = split_path(pname, &n); | |
9059
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|
1223 if (pelements == NULL) { |
9062 | 1224 return false; |
9059
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|
1225 } |
691 | 1226 for (int i = 0 ; i < n ; i++) { |
1227 char* path = pelements[i]; | |
1228 // Really shouldn't be NULL, but check can't hurt | |
1229 size_t plen = (path == NULL) ? 0 : strlen(path); | |
1230 if (plen == 0) { | |
1231 continue; // skip the empty path values | |
1232 } | |
1233 const char lastchar = path[plen - 1]; | |
1234 if (lastchar == ':' || lastchar == '\\') { | |
1235 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
1236 } else { | |
1237 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
1238 } | |
1239 if (file_exists(buffer)) { | |
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|
1240 retval = true; |
691 | 1241 break; |
1242 } | |
242 | 1243 } |
691 | 1244 // release the storage |
1245 for (int i = 0 ; i < n ; i++) { | |
1246 if (pelements[i] != NULL) { | |
6197 | 1247 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
691 | 1248 } |
242 | 1249 } |
691 | 1250 if (pelements != NULL) { |
6197 | 1251 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
691 | 1252 } |
1253 } else { | |
1254 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
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|
1255 retval = true; |
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|
1256 } |
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|
1257 return retval; |
242 | 1258 } |
1259 | |
0 | 1260 // Needs to be in os specific directory because windows requires another |
1261 // header file <direct.h> | |
10195
e12c9b3740db
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|
1262 const char* os::get_current_directory(char *buf, size_t buflen) { |
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|
1263 int n = static_cast<int>(buflen); |
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|
1264 if (buflen > INT_MAX) n = INT_MAX; |
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|
1265 return _getcwd(buf, n); |
0 | 1266 } |
1267 | |
1268 //----------------------------------------------------------- | |
1269 // Helper functions for fatal error handler | |
1270 #ifdef _WIN64 | |
1271 // Helper routine which returns true if address in | |
1272 // within the NTDLL address space. | |
1273 // | |
1274 static bool _addr_in_ntdll( address addr ) | |
1275 { | |
1276 HMODULE hmod; | |
1277 MODULEINFO minfo; | |
1278 | |
1279 hmod = GetModuleHandle("NTDLL.DLL"); | |
1280 if ( hmod == NULL ) return false; | |
3833
b1cbb0907b36
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1281 if ( !os::PSApiDll::GetModuleInformation( GetCurrentProcess(), hmod, |
0 | 1282 &minfo, sizeof(MODULEINFO)) ) |
1283 return false; | |
1284 | |
1285 if ( (addr >= minfo.lpBaseOfDll) && | |
1286 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
1287 return true; | |
1288 else | |
1289 return false; | |
1290 } | |
1291 #endif | |
1292 | |
1293 | |
1294 // Enumerate all modules for a given process ID | |
1295 // | |
1296 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
1297 // different API for doing this. We use PSAPI.DLL on NT based | |
1298 // Windows and ToolHelp on 95/98/Me. | |
1299 | |
1300 // Callback function that is called by enumerate_modules() on | |
1301 // every DLL module. | |
1302 // Input parameters: | |
1303 // int pid, | |
1304 // char* module_file_name, | |
1305 // address module_base_addr, | |
1306 // unsigned module_size, | |
1307 // void* param | |
1308 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
1309 | |
1310 // enumerate_modules for Windows NT, using PSAPI | |
1311 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
1312 { | |
1313 HANDLE hProcess ; | |
1314 | |
1315 # define MAX_NUM_MODULES 128 | |
1316 HMODULE modules[MAX_NUM_MODULES]; | |
1317 static char filename[ MAX_PATH ]; | |
1318 int result = 0; | |
1319 | |
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1320 if (!os::PSApiDll::PSApiAvailable()) { |
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1321 return 0; |
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1322 } |
0 | 1323 |
1324 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
1325 FALSE, pid ) ; | |
1326 if (hProcess == NULL) return 0; | |
1327 | |
1328 DWORD size_needed; | |
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|
1329 if (!os::PSApiDll::EnumProcessModules(hProcess, modules, |
0 | 1330 sizeof(modules), &size_needed)) { |
1331 CloseHandle( hProcess ); | |
1332 return 0; | |
1333 } | |
1334 | |
1335 // number of modules that are currently loaded | |
1336 int num_modules = size_needed / sizeof(HMODULE); | |
1337 | |
1338 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
1339 // Get Full pathname: | |
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|
1340 if(!os::PSApiDll::GetModuleFileNameEx(hProcess, modules[i], |
0 | 1341 filename, sizeof(filename))) { |
1342 filename[0] = '\0'; | |
1343 } | |
1344 | |
1345 MODULEINFO modinfo; | |
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|
1346 if (!os::PSApiDll::GetModuleInformation(hProcess, modules[i], |
0 | 1347 &modinfo, sizeof(modinfo))) { |
1348 modinfo.lpBaseOfDll = NULL; | |
1349 modinfo.SizeOfImage = 0; | |
1350 } | |
1351 | |
1352 // Invoke callback function | |
1353 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
1354 modinfo.SizeOfImage, param); | |
1355 if (result) break; | |
1356 } | |
1357 | |
1358 CloseHandle( hProcess ) ; | |
1359 return result; | |
1360 } | |
1361 | |
1362 | |
1363 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
1364 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
1365 { | |
1366 HANDLE hSnapShot ; | |
1367 static MODULEENTRY32 modentry ; | |
1368 int result = 0; | |
1369 | |
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1370 if (!os::Kernel32Dll::HelpToolsAvailable()) { |
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1371 return 0; |
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|
1372 } |
0 | 1373 |
1374 // Get a handle to a Toolhelp snapshot of the system | |
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1375 hSnapShot = os::Kernel32Dll::CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; |
0 | 1376 if( hSnapShot == INVALID_HANDLE_VALUE ) { |
1377 return FALSE ; | |
1378 } | |
1379 | |
1380 // iterate through all modules | |
1381 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1382 bool not_done = os::Kernel32Dll::Module32First( hSnapShot, &modentry ) != 0; |
0 | 1383 |
1384 while( not_done ) { | |
1385 // invoke the callback | |
1386 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
1387 modentry.modBaseSize, param); | |
1388 if (result) break; | |
1389 | |
1390 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1391 not_done = os::Kernel32Dll::Module32Next( hSnapShot, &modentry ) != 0; |
0 | 1392 } |
1393 | |
1394 CloseHandle(hSnapShot); | |
1395 return result; | |
1396 } | |
1397 | |
1398 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
1399 { | |
1400 // Get current process ID if caller doesn't provide it. | |
1401 if (!pid) pid = os::current_process_id(); | |
1402 | |
1403 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
1404 else return _enumerate_modules_windows(pid, func, param); | |
1405 } | |
1406 | |
1407 struct _modinfo { | |
1408 address addr; | |
1409 char* full_path; // point to a char buffer | |
1410 int buflen; // size of the buffer | |
1411 address base_addr; | |
1412 }; | |
1413 | |
1414 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
1415 unsigned size, void * param) { | |
1416 struct _modinfo *pmod = (struct _modinfo *)param; | |
1417 if (!pmod) return -1; | |
1418 | |
1419 if (base_addr <= pmod->addr && | |
1420 base_addr+size > pmod->addr) { | |
1421 // if a buffer is provided, copy path name to the buffer | |
1422 if (pmod->full_path) { | |
1423 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
1424 } | |
1425 pmod->base_addr = base_addr; | |
1426 return 1; | |
1427 } | |
1428 return 0; | |
1429 } | |
1430 | |
1431 bool os::dll_address_to_library_name(address addr, char* buf, | |
1432 int buflen, int* offset) { | |
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1433 // buf is not optional, but offset is optional |
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1434 assert(buf != NULL, "sanity check"); |
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1435 |
0 | 1436 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always |
1437 // return the full path to the DLL file, sometimes it returns path | |
1438 // to the corresponding PDB file (debug info); sometimes it only | |
1439 // returns partial path, which makes life painful. | |
1440 | |
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1441 struct _modinfo mi; |
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1442 mi.addr = addr; |
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1443 mi.full_path = buf; |
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1444 mi.buflen = buflen; |
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1445 int pid = os::current_process_id(); |
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1446 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { |
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1447 // buf already contains path name |
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|
1448 if (offset) *offset = addr - mi.base_addr; |
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1449 return true; |
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|
1450 } |
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|
1451 |
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|
1452 buf[0] = '\0'; |
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1453 if (offset) *offset = -1; |
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|
1454 return false; |
0 | 1455 } |
1456 | |
1457 bool os::dll_address_to_function_name(address addr, char *buf, | |
1458 int buflen, int *offset) { | |
11092
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|
1459 // buf is not optional, but offset is optional |
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|
1460 assert(buf != NULL, "sanity check"); |
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|
1461 |
4803 | 1462 if (Decoder::decode(addr, buf, buflen, offset)) { |
2022
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|
1463 return true; |
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|
1464 } |
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|
1465 if (offset != NULL) *offset = -1; |
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|
1466 buf[0] = '\0'; |
0 | 1467 return false; |
1468 } | |
1469 | |
1470 // save the start and end address of jvm.dll into param[0] and param[1] | |
1471 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
1472 unsigned size, void * param) { | |
1473 if (!param) return -1; | |
1474 | |
1475 if (base_addr <= (address)_locate_jvm_dll && | |
1476 base_addr+size > (address)_locate_jvm_dll) { | |
1477 ((address*)param)[0] = base_addr; | |
1478 ((address*)param)[1] = base_addr + size; | |
1479 return 1; | |
1480 } | |
1481 return 0; | |
1482 } | |
1483 | |
1484 address vm_lib_location[2]; // start and end address of jvm.dll | |
1485 | |
1486 // check if addr is inside jvm.dll | |
1487 bool os::address_is_in_vm(address addr) { | |
1488 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
1489 int pid = os::current_process_id(); | |
1490 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
1491 assert(false, "Can't find jvm module."); | |
1492 return false; | |
1493 } | |
1494 } | |
1495 | |
1496 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
1497 } | |
1498 | |
1499 // print module info; param is outputStream* | |
1500 static int _print_module(int pid, char* fname, address base, | |
1501 unsigned size, void* param) { | |
1502 if (!param) return -1; | |
1503 | |
1504 outputStream* st = (outputStream*)param; | |
1505 | |
1506 address end_addr = base + size; | |
1507 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
1508 return 0; | |
1509 } | |
1510 | |
1511 // Loads .dll/.so and | |
1512 // in case of error it checks if .dll/.so was built for the | |
1513 // same architecture as Hotspot is running on | |
1514 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
1515 { | |
1516 void * result = LoadLibrary(name); | |
1517 if (result != NULL) | |
1518 { | |
1519 return result; | |
1520 } | |
1521 | |
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|
1522 DWORD errcode = GetLastError(); |
0 | 1523 if (errcode == ERROR_MOD_NOT_FOUND) { |
1524 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
1525 ebuf[ebuflen-1]='\0'; | |
1526 return NULL; | |
1527 } | |
1528 | |
1529 // Parsing dll below | |
1530 // If we can read dll-info and find that dll was built | |
1531 // for an architecture other than Hotspot is running in | |
1532 // - then print to buffer "DLL was built for a different architecture" | |
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|
1533 // else call os::lasterror to obtain system error message |
0 | 1534 |
1535 // Read system error message into ebuf | |
1536 // It may or may not be overwritten below (in the for loop and just above) | |
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|
1537 lasterror(ebuf, (size_t) ebuflen); |
0 | 1538 ebuf[ebuflen-1]='\0'; |
1539 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
1540 if (file_descriptor<0) | |
1541 { | |
1542 return NULL; | |
1543 } | |
1544 | |
1545 uint32_t signature_offset; | |
1546 uint16_t lib_arch=0; | |
1547 bool failed_to_get_lib_arch= | |
1548 ( | |
1549 //Go to position 3c in the dll | |
1550 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
1551 || | |
1552 // Read loacation of signature | |
1553 (sizeof(signature_offset)!= | |
1554 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
1555 || | |
1556 //Go to COFF File Header in dll | |
1557 //that is located after"signature" (4 bytes long) | |
1558 (os::seek_to_file_offset(file_descriptor, | |
1559 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
1560 || | |
1561 //Read field that contains code of architecture | |
1562 // that dll was build for | |
1563 (sizeof(lib_arch)!= | |
1564 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
1565 ); | |
1566 | |
1567 ::close(file_descriptor); | |
1568 if (failed_to_get_lib_arch) | |
1569 { | |
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|
1570 // file i/o error - report os::lasterror(...) msg |
0 | 1571 return NULL; |
1572 } | |
1573 | |
1574 typedef struct | |
1575 { | |
1576 uint16_t arch_code; | |
1577 char* arch_name; | |
1578 } arch_t; | |
1579 | |
1580 static const arch_t arch_array[]={ | |
1581 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
1582 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
1583 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
1584 }; | |
1585 #if (defined _M_IA64) | |
1586 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
1587 #elif (defined _M_AMD64) | |
1588 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
1589 #elif (defined _M_IX86) | |
1590 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
1591 #else | |
1592 #error Method os::dll_load requires that one of following \ | |
1593 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
1594 #endif | |
1595 | |
1596 | |
1597 // Obtain a string for printf operation | |
1598 // lib_arch_str shall contain string what platform this .dll was built for | |
1599 // running_arch_str shall string contain what platform Hotspot was built for | |
1600 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
1601 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
1602 { | |
1603 if (lib_arch==arch_array[i].arch_code) | |
1604 lib_arch_str=arch_array[i].arch_name; | |
1605 if (running_arch==arch_array[i].arch_code) | |
1606 running_arch_str=arch_array[i].arch_name; | |
1607 } | |
1608 | |
1609 assert(running_arch_str, | |
1610 "Didn't find runing architecture code in arch_array"); | |
1611 | |
1612 // If the architure is right | |
4750
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1613 // but some other error took place - report os::lasterror(...) msg |
0 | 1614 if (lib_arch == running_arch) |
1615 { | |
1616 return NULL; | |
1617 } | |
1618 | |
1619 if (lib_arch_str!=NULL) | |
1620 { | |
1621 ::_snprintf(ebuf, ebuflen-1, | |
1622 "Can't load %s-bit .dll on a %s-bit platform", | |
1623 lib_arch_str,running_arch_str); | |
1624 } | |
1625 else | |
1626 { | |
1627 // don't know what architecture this dll was build for | |
1628 ::_snprintf(ebuf, ebuflen-1, | |
1629 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
1630 lib_arch,running_arch_str); | |
1631 } | |
1632 | |
1633 return NULL; | |
1634 } | |
1635 | |
1636 | |
1637 void os::print_dll_info(outputStream *st) { | |
1638 int pid = os::current_process_id(); | |
1639 st->print_cr("Dynamic libraries:"); | |
1640 enumerate_modules(pid, _print_module, (void *)st); | |
1641 } | |
1642 | |
6080
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7165755: OS Information much longer on linux than other platforms
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6044
diff
changeset
|
1643 void os::print_os_info_brief(outputStream* st) { |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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parents:
6044
diff
changeset
|
1644 os::print_os_info(st); |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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6044
diff
changeset
|
1645 } |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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diff
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|
1646 |
0 | 1647 void os::print_os_info(outputStream* st) { |
273
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|
1648 st->print("OS:"); |
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|
1649 |
6080
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|
1650 os::win32::print_windows_version(st); |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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diff
changeset
|
1651 } |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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6044
diff
changeset
|
1652 |
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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changeset
|
1653 void os::win32::print_windows_version(outputStream* st) { |
273
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|
1654 OSVERSIONINFOEX osvi; |
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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changeset
|
1655 VS_FIXEDFILEINFO *file_info; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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diff
changeset
|
1656 TCHAR kernel32_path[MAX_PATH]; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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changeset
|
1657 UINT len, ret; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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changeset
|
1658 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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diff
changeset
|
1659 // Use the GetVersionEx information to see if we're on a server or |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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changeset
|
1660 // workstation edition of Windows. Starting with Windows 8.1 we can't |
09259e52a610
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|
1661 // trust the OS version information returned by this API. |
273
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|
1662 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
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|
1663 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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1664 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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changeset
|
1665 st->print_cr("Call to GetVersionEx failed"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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|
1666 return; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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20367
diff
changeset
|
1667 } |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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|
1668 bool is_workstation = (osvi.wProductType == VER_NT_WORKSTATION); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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|
1669 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1670 // Get the full path to \Windows\System32\kernel32.dll and use that for |
09259e52a610
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|
1671 // determining what version of Windows we're running on. |
09259e52a610
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|
1672 len = MAX_PATH - (UINT)strlen("\\kernel32.dll") - 1; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1673 ret = GetSystemDirectory(kernel32_path, len); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1674 if (ret == 0 || ret > len) { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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changeset
|
1675 st->print_cr("Call to GetSystemDirectory failed"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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changeset
|
1676 return; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
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changeset
|
1677 } |
09259e52a610
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|
1678 strncat(kernel32_path, "\\kernel32.dll", MAX_PATH - ret); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1679 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1680 DWORD version_size = GetFileVersionInfoSize(kernel32_path, NULL); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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changeset
|
1681 if (version_size == 0) { |
09259e52a610
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|
1682 st->print_cr("Call to GetFileVersionInfoSize failed"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1683 return; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1684 } |
09259e52a610
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|
1685 |
09259e52a610
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|
1686 LPTSTR version_info = (LPTSTR)os::malloc(version_size, mtInternal); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1687 if (version_info == NULL) { |
09259e52a610
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|
1688 st->print_cr("Failed to allocate version_info"); |
273
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|
1689 return; |
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|
1690 } |
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|
1691 |
20629
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|
1692 if (!GetFileVersionInfo(kernel32_path, NULL, version_size, version_info)) { |
09259e52a610
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|
1693 os::free(version_info); |
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|
1694 st->print_cr("Call to GetFileVersionInfo failed"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1695 return; |
09259e52a610
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changeset
|
1696 } |
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changeset
|
1697 |
09259e52a610
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changeset
|
1698 if (!VerQueryValue(version_info, TEXT("\\"), (LPVOID*)&file_info, &len)) { |
09259e52a610
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|
1699 os::free(version_info); |
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|
1700 st->print_cr("Call to VerQueryValue failed"); |
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|
1701 return; |
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|
1702 } |
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|
1703 |
09259e52a610
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|
1704 int major_version = HIWORD(file_info->dwProductVersionMS); |
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|
1705 int minor_version = LOWORD(file_info->dwProductVersionMS); |
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|
1706 int build_number = HIWORD(file_info->dwProductVersionLS); |
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8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1707 int build_minor = LOWORD(file_info->dwProductVersionLS); |
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|
1708 int os_vers = major_version * 1000 + minor_version; |
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|
1709 os::free(version_info); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1710 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1711 st->print(" Windows "); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1712 switch (os_vers) { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1713 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1714 case 6000: |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1715 if (is_workstation) { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1716 st->print("Vista"); |
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1717 } else { |
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1718 st->print("Server 2008"); |
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1719 } |
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1720 break; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1721 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1722 case 6001: |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1723 if (is_workstation) { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1724 st->print("7"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1725 } else { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1726 st->print("Server 2008 R2"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1727 } |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1728 break; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1729 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1730 case 6002: |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1731 if (is_workstation) { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1732 st->print("8"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1733 } else { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1734 st->print("Server 2012"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1735 } |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1736 break; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1737 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1738 case 6003: |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1739 if (is_workstation) { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1740 st->print("8.1"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1741 } else { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1742 st->print("Server 2012 R2"); |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1743 } |
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1744 break; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1745 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1746 case 6004: |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1747 if (is_workstation) { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1748 st->print("10"); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1749 } else { |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1750 // The server version name of Windows 10 is not known at this time |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1751 st->print("%d.%d", major_version, minor_version); |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1752 } |
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1753 break; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1754 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1755 default: |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1756 // Unrecognized windows, print out its major and minor versions |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1757 st->print("%d.%d", major_version, minor_version); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1758 break; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1759 } |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1760 |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1761 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1762 // find out whether we are running on 64 bit processor or not |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1763 SYSTEM_INFO si; |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1764 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1765 os::Kernel32Dll::GetNativeSystemInfo(&si); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1766 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) { |
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1767 st->print(" , 64 bit"); |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1768 } |
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1769 |
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1770 st->print(" Build %d", build_number); |
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1771 st->print(" (%d.%d.%d.%d)", major_version, minor_version, build_number, build_minor); |
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1772 st->cr(); |
0 | 1773 } |
1774 | |
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1775 void os::pd_print_cpu_info(outputStream* st) { |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1776 // Nothing to do for now. |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1777 } |
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1778 |
0 | 1779 void os::print_memory_info(outputStream* st) { |
1780 st->print("Memory:"); | |
1781 st->print(" %dk page", os::vm_page_size()>>10); | |
1782 | |
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1783 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1784 // 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
|
1785 MEMORYSTATUSEX ms; |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1786 ms.dwLength = sizeof(ms); |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1787 GlobalMemoryStatusEx(&ms); |
0 | 1788 |
1789 st->print(", physical %uk", os::physical_memory() >> 10); | |
1790 st->print("(%uk free)", os::available_memory() >> 10); | |
1791 | |
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1792 st->print(", swap %uk", ms.ullTotalPageFile >> 10); |
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1793 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
0 | 1794 st->cr(); |
1795 } | |
1796 | |
1797 void os::print_siginfo(outputStream *st, void *siginfo) { | |
1798 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
1799 st->print("siginfo:"); | |
1800 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
1801 | |
1802 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
1803 er->NumberParameters >= 2) { | |
1804 switch (er->ExceptionInformation[0]) { | |
1805 case 0: st->print(", reading address"); break; | |
1806 case 1: st->print(", writing address"); break; | |
1807 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
1808 er->ExceptionInformation[0]); | |
1809 } | |
1810 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
1811 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
1812 er->NumberParameters >= 2 && UseSharedSpaces) { | |
1813 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
1814 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
1815 st->print("\n\nError accessing class data sharing archive." \ | |
1816 " Mapped file inaccessible during execution, " \ | |
1817 " possible disk/network problem."); | |
1818 } | |
1819 } else { | |
1820 int num = er->NumberParameters; | |
1821 if (num > 0) { | |
1822 st->print(", ExceptionInformation="); | |
1823 for (int i = 0; i < num; i++) { | |
1824 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
1825 } | |
1826 } | |
1827 } | |
1828 st->cr(); | |
1829 } | |
1830 | |
1831 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
1832 // do nothing | |
1833 } | |
1834 | |
1835 static char saved_jvm_path[MAX_PATH] = {0}; | |
1836 | |
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
dcubed
parents:
7206
diff
changeset
|
1837 // Find the full path to the current module, jvm.dll |
0 | 1838 void os::jvm_path(char *buf, jint buflen) { |
1839 // Error checking. | |
1840 if (buflen < MAX_PATH) { | |
1841 assert(false, "must use a large-enough buffer"); | |
1842 buf[0] = '\0'; | |
1843 return; | |
1844 } | |
1845 // Lazy resolve the path to current module. | |
1846 if (saved_jvm_path[0] != 0) { | |
1847 strcpy(buf, saved_jvm_path); | |
1848 return; | |
1849 } | |
1850 | |
1985 | 1851 buf[0] = '\0'; |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
1852 if (Arguments::created_by_gamma_launcher()) { |
1985 | 1853 // Support for the gamma launcher. Check for an |
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
2023
diff
changeset
|
1854 // JAVA_HOME environment variable |
1985 | 1855 // and fix up the path so it looks like |
1856 // libjvm.so is installed there (append a fake suffix | |
1857 // hotspot/libjvm.so). | |
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
2023
diff
changeset
|
1858 char* java_home_var = ::getenv("JAVA_HOME"); |
17567 | 1859 if (java_home_var != NULL && java_home_var[0] != 0 && |
1860 strlen(java_home_var) < (size_t)buflen) { | |
1985 | 1861 |
1862 strncpy(buf, java_home_var, buflen); | |
1863 | |
1864 // determine if this is a legacy image or modules image | |
1865 // modules image doesn't have "jre" subdirectory | |
1866 size_t len = strlen(buf); | |
1867 char* jrebin_p = buf + len; | |
1868 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
1869 if (0 != _access(buf, 0)) { | |
1870 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
1871 } | |
1872 len = strlen(buf); | |
1873 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
1874 } | |
1875 } | |
1876 | |
1877 if(buf[0] == '\0') { | |
17567 | 1878 GetModuleFileName(vm_lib_handle, buf, buflen); |
1879 } | |
1880 strncpy(saved_jvm_path, buf, MAX_PATH); | |
0 | 1881 } |
1882 | |
1883 | |
1884 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
1885 #ifndef _WIN64 | |
1886 st->print("_"); | |
1887 #endif | |
1888 } | |
1889 | |
1890 | |
1891 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
1892 #ifndef _WIN64 | |
1893 st->print("@%d", args_size * sizeof(int)); | |
1894 #endif | |
1895 } | |
1896 | |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1897 // This method is a copy of JDK's sysGetLastErrorString |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1898 // from src/windows/hpi/src/system_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1899 |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1900 size_t os::lasterror(char* buf, size_t len) { |
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1901 DWORD errval; |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1902 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1903 if ((errval = GetLastError()) != 0) { |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1904 // DOS error |
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1905 size_t n = (size_t)FormatMessage( |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1906 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1907 NULL, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1908 errval, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1909 0, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1910 buf, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1911 (DWORD)len, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1912 NULL); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1913 if (n > 3) { |
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1914 // Drop final '.', CR, LF |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1915 if (buf[n - 1] == '\n') n--; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1916 if (buf[n - 1] == '\r') n--; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1917 if (buf[n - 1] == '.') n--; |
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1918 buf[n] = '\0'; |
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1919 } |
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1920 return n; |
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1921 } |
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1922 |
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1923 if (errno != 0) { |
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1924 // C runtime error that has no corresponding DOS error code |
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1925 const char* s = strerror(errno); |
1980
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1926 size_t n = strlen(s); |
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1927 if (n >= len) n = len - 1; |
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1928 strncpy(buf, s, n); |
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1929 buf[n] = '\0'; |
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1930 return n; |
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1931 } |
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1932 |
1980
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1933 return 0; |
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1934 } |
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1935 |
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1936 int os::get_last_error() { |
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1937 DWORD error = GetLastError(); |
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1938 if (error == 0) |
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1939 error = errno; |
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1940 return (int)error; |
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1941 } |
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1942 |
0 | 1943 // sun.misc.Signal |
1944 // NOTE that this is a workaround for an apparent kernel bug where if | |
1945 // a signal handler for SIGBREAK is installed then that signal handler | |
1946 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
1947 // See bug 4416763. | |
1948 static void (*sigbreakHandler)(int) = NULL; | |
1949 | |
1950 static void UserHandler(int sig, void *siginfo, void *context) { | |
1951 os::signal_notify(sig); | |
1952 // We need to reinstate the signal handler each time... | |
1953 os::signal(sig, (void*)UserHandler); | |
1954 } | |
1955 | |
1956 void* os::user_handler() { | |
1957 return (void*) UserHandler; | |
1958 } | |
1959 | |
1960 void* os::signal(int signal_number, void* handler) { | |
1961 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
1962 void (*oldHandler)(int) = sigbreakHandler; | |
1963 sigbreakHandler = (void (*)(int)) handler; | |
1964 return (void*) oldHandler; | |
1965 } else { | |
1966 return (void*)::signal(signal_number, (void (*)(int))handler); | |
1967 } | |
1968 } | |
1969 | |
1970 void os::signal_raise(int signal_number) { | |
1971 raise(signal_number); | |
1972 } | |
1973 | |
1974 // The Win32 C runtime library maps all console control events other than ^C | |
1975 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
1976 // logoff, and shutdown events. We therefore install our own console handler | |
1977 // that raises SIGTERM for the latter cases. | |
1978 // | |
1979 static BOOL WINAPI consoleHandler(DWORD event) { | |
1980 switch(event) { | |
1981 case CTRL_C_EVENT: | |
1982 if (is_error_reported()) { | |
1983 // Ctrl-C is pressed during error reporting, likely because the error | |
1984 // handler fails to abort. Let VM die immediately. | |
1985 os::die(); | |
1986 } | |
1987 | |
1988 os::signal_raise(SIGINT); | |
1989 return TRUE; | |
1990 break; | |
1991 case CTRL_BREAK_EVENT: | |
1992 if (sigbreakHandler != NULL) { | |
1993 (*sigbreakHandler)(SIGBREAK); | |
1994 } | |
1995 return TRUE; | |
1996 break; | |
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1997 case CTRL_LOGOFF_EVENT: { |
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1998 // Don't terminate JVM if it is running in a non-interactive session, |
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1999 // such as a service process. |
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2000 USEROBJECTFLAGS flags; |
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2001 HANDLE handle = GetProcessWindowStation(); |
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2002 if (handle != NULL && |
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2003 GetUserObjectInformation(handle, UOI_FLAGS, &flags, |
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2004 sizeof( USEROBJECTFLAGS), NULL)) { |
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2005 // If it is a non-interactive session, let next handler to deal |
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2006 // with it. |
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2007 if ((flags.dwFlags & WSF_VISIBLE) == 0) { |
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2008 return FALSE; |
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2009 } |
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2010 } |
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2011 } |
0 | 2012 case CTRL_CLOSE_EVENT: |
2013 case CTRL_SHUTDOWN_EVENT: | |
2014 os::signal_raise(SIGTERM); | |
2015 return TRUE; | |
2016 break; | |
2017 default: | |
2018 break; | |
2019 } | |
2020 return FALSE; | |
2021 } | |
2022 | |
2023 /* | |
2024 * The following code is moved from os.cpp for making this | |
2025 * code platform specific, which it is by its very nature. | |
2026 */ | |
2027 | |
2028 // Return maximum OS signal used + 1 for internal use only | |
2029 // Used as exit signal for signal_thread | |
2030 int os::sigexitnum_pd(){ | |
2031 return NSIG; | |
2032 } | |
2033 | |
2034 // a counter for each possible signal value, including signal_thread exit signal | |
2035 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
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2036 static HANDLE sig_sem = NULL; |
0 | 2037 |
2038 void os::signal_init_pd() { | |
2039 // Initialize signal structures | |
2040 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
2041 | |
2042 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
2043 | |
2044 // Programs embedding the VM do not want it to attempt to receive | |
2045 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
2046 // shutdown hooks mechanism introduced in 1.3. For example, when | |
2047 // the VM is run as part of a Windows NT service (i.e., a servlet | |
2048 // engine in a web server), the correct behavior is for any console | |
2049 // control handler to return FALSE, not TRUE, because the OS's | |
2050 // "final" handler for such events allows the process to continue if | |
2051 // it is a service (while terminating it if it is not a service). | |
2052 // To make this behavior uniform and the mechanism simpler, we | |
2053 // completely disable the VM's usage of these console events if -Xrs | |
2054 // (=ReduceSignalUsage) is specified. This means, for example, that | |
2055 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
2056 // case. See bugs 4323062, 4345157, and related bugs. | |
2057 | |
2058 if (!ReduceSignalUsage) { | |
2059 // Add a CTRL-C handler | |
2060 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
2061 } | |
2062 } | |
2063 | |
2064 void os::signal_notify(int signal_number) { | |
2065 BOOL ret; | |
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2066 if (sig_sem != NULL) { |
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2067 Atomic::inc(&pending_signals[signal_number]); |
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2068 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); |
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2069 assert(ret != 0, "ReleaseSemaphore() failed"); |
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2070 } |
0 | 2071 } |
2072 | |
2073 static int check_pending_signals(bool wait_for_signal) { | |
2074 DWORD ret; | |
2075 while (true) { | |
2076 for (int i = 0; i < NSIG + 1; i++) { | |
2077 jint n = pending_signals[i]; | |
2078 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
2079 return i; | |
2080 } | |
2081 } | |
2082 if (!wait_for_signal) { | |
2083 return -1; | |
2084 } | |
2085 | |
2086 JavaThread *thread = JavaThread::current(); | |
2087 | |
2088 ThreadBlockInVM tbivm(thread); | |
2089 | |
2090 bool threadIsSuspended; | |
2091 do { | |
2092 thread->set_suspend_equivalent(); | |
2093 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
2094 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
2095 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
2096 | |
2097 // were we externally suspended while we were waiting? | |
2098 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
2099 if (threadIsSuspended) { | |
2100 // | |
2101 // The semaphore has been incremented, but while we were waiting | |
2102 // another thread suspended us. We don't want to continue running | |
2103 // while suspended because that would surprise the thread that | |
2104 // suspended us. | |
2105 // | |
2106 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
2107 assert(ret != 0, "ReleaseSemaphore() failed"); | |
2108 | |
2109 thread->java_suspend_self(); | |
2110 } | |
2111 } while (threadIsSuspended); | |
2112 } | |
2113 } | |
2114 | |
2115 int os::signal_lookup() { | |
2116 return check_pending_signals(false); | |
2117 } | |
2118 | |
2119 int os::signal_wait() { | |
2120 return check_pending_signals(true); | |
2121 } | |
2122 | |
2123 // Implicit OS exception handling | |
2124 | |
2125 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
2126 JavaThread* thread = JavaThread::current(); | |
2127 // Save pc in thread | |
2128 #ifdef _M_IA64 | |
7994 | 2129 // Do not blow up if no thread info available. |
2130 if (thread) { | |
2131 // Saving PRECISE pc (with slot information) in thread. | |
2132 uint64_t precise_pc = (uint64_t) exceptionInfo->ExceptionRecord->ExceptionAddress; | |
2133 // Convert precise PC into "Unix" format | |
2134 precise_pc = (precise_pc & 0xFFFFFFFFFFFFFFF0) | ((precise_pc & 0xF) >> 2); | |
2135 thread->set_saved_exception_pc((address)precise_pc); | |
2136 } | |
0 | 2137 // Set pc to handler |
2138 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
7994 | 2139 // Clear out psr.ri (= Restart Instruction) in order to continue |
2140 // at the beginning of the target bundle. | |
2141 exceptionInfo->ContextRecord->StIPSR &= 0xFFFFF9FFFFFFFFFF; | |
2142 assert(((DWORD64)handler & 0xF) == 0, "Target address must point to the beginning of a bundle!"); | |
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2143 #else |
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2144 #ifdef _M_AMD64 |
7994 | 2145 // Do not blow up if no thread info available. |
2146 if (thread) { | |
2147 thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Rip); | |
2148 } | |
0 | 2149 // Set pc to handler |
2150 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
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2151 #else |
7994 | 2152 // Do not blow up if no thread info available. |
2153 if (thread) { | |
2154 thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Eip); | |
2155 } | |
0 | 2156 // Set pc to handler |
7994 | 2157 exceptionInfo->ContextRecord->Eip = (DWORD)(DWORD_PTR)handler; |
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2158 #endif |
0 | 2159 #endif |
2160 | |
2161 // Continue the execution | |
2162 return EXCEPTION_CONTINUE_EXECUTION; | |
2163 } | |
2164 | |
2165 | |
2166 // Used for PostMortemDump | |
2167 extern "C" void safepoints(); | |
2168 extern "C" void find(int x); | |
2169 extern "C" void events(); | |
2170 | |
2171 // According to Windows API documentation, an illegal instruction sequence should generate | |
2172 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
2173 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
2174 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
2175 | |
2176 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
2177 | |
2178 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
2179 // Once a system header becomes available, the "real" define should be | |
2180 // included or copied here. | |
2181 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
2182 | |
7994 | 2183 // Handle NAT Bit consumption on IA64. |
2184 #ifdef _M_IA64 | |
2185 #define EXCEPTION_REG_NAT_CONSUMPTION STATUS_REG_NAT_CONSUMPTION | |
2186 #endif | |
2187 | |
2188 // Windows Vista/2008 heap corruption check | |
2189 #define EXCEPTION_HEAP_CORRUPTION 0xC0000374 | |
2190 | |
0 | 2191 #define def_excpt(val) #val, val |
2192 | |
2193 struct siglabel { | |
2194 char *name; | |
2195 int number; | |
2196 }; | |
2197 | |
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2198 // All Visual C++ exceptions thrown from code generated by the Microsoft Visual |
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2199 // C++ compiler contain this error code. Because this is a compiler-generated |
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2200 // error, the code is not listed in the Win32 API header files. |
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2201 // The code is actually a cryptic mnemonic device, with the initial "E" |
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2202 // standing for "exception" and the final 3 bytes (0x6D7363) representing the |
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2203 // ASCII values of "msc". |
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2204 |
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2205 #define EXCEPTION_UNCAUGHT_CXX_EXCEPTION 0xE06D7363 |
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2206 |
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2207 |
0 | 2208 struct siglabel exceptlabels[] = { |
2209 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
2210 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
2211 def_excpt(EXCEPTION_BREAKPOINT), | |
2212 def_excpt(EXCEPTION_SINGLE_STEP), | |
2213 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
2214 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
2215 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
2216 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
2217 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
2218 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
2219 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
2220 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
2221 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
2222 def_excpt(EXCEPTION_INT_OVERFLOW), | |
2223 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
2224 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
2225 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
2226 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
2227 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
2228 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
2229 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
2230 def_excpt(EXCEPTION_GUARD_PAGE), | |
2231 def_excpt(EXCEPTION_INVALID_HANDLE), | |
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2232 def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION), |
7994 | 2233 def_excpt(EXCEPTION_HEAP_CORRUPTION), |
2234 #ifdef _M_IA64 | |
2235 def_excpt(EXCEPTION_REG_NAT_CONSUMPTION), | |
2236 #endif | |
0 | 2237 NULL, 0 |
2238 }; | |
2239 | |
2240 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
2241 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
2242 if (exceptlabels[i].number == exception_code) { | |
2243 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
2244 return buf; | |
2245 } | |
2246 } | |
2247 | |
2248 return NULL; | |
2249 } | |
2250 | |
2251 //----------------------------------------------------------------------------- | |
2252 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2253 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
2254 // (division by zero is handled explicitly) | |
2255 #ifdef _M_IA64 | |
2256 assert(0, "Fix Handle_IDiv_Exception"); | |
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2257 #else |
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2258 #ifdef _M_AMD64 |
0 | 2259 PCONTEXT ctx = exceptionInfo->ContextRecord; |
2260 address pc = (address)ctx->Rip; | |
22298 | 2261 #if INCLUDE_JVMCI |
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2262 assert(pc[0] >= Assembler::REX && pc[0] <= Assembler::REX_WRXB && pc[1] == 0xF7 || pc[0] == 0xF7, "not an idiv opcode"); |
359f7e70ae7f
Reduce HotSpot diff and fix previous merge
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
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changeset
|
2263 if (pc[0] == 0xF7) { |
7696
fbbc2ea60c4d
fixed signal handler for long underflow on windows
Christian Haeubl <haeubl@ssw.jku.at>
parents:
7643
diff
changeset
|
2264 // set correct result values and continue after idiv instruction |
12356
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|
2265 ctx->Rip = (DWORD64)pc + 2; // idiv reg, reg is 2 bytes |
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parents:
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|
2266 } else { |
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parents:
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diff
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|
2267 ctx->Rip = (DWORD64)pc + 3; // REX idiv reg, reg is 3 bytes |
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|
2268 } |
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Reduce HotSpot diff and fix previous merge
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parents:
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diff
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|
2269 // do not set ctx->Rax as it already contains the correct value (either 32 or 64 bit, depending on the operation) |
359f7e70ae7f
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parents:
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diff
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|
2270 // this is the case because the exception only happens for -MinValue/-1 and -MinValue is always in rax because of the |
359f7e70ae7f
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Gilles Duboscq <duboscq@ssw.jku.at>
parents:
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diff
changeset
|
2271 // idiv opcode (0xF7) |
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parents:
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|
2272 #else |
0 | 2273 assert(pc[0] == 0xF7, "not an idiv opcode"); |
2274 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
2275 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
2276 // set correct result values and continue after idiv instruction | |
2277 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
2278 ctx->Rax = (DWORD)min_jint; // result | |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
20804
diff
changeset
|
2279 #endif // JVMCI |
0 | 2280 ctx->Rdx = (DWORD)0; // remainder |
2281 // Continue the execution | |
23004
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2282 #else |
0 | 2283 PCONTEXT ctx = exceptionInfo->ContextRecord; |
2284 address pc = (address)ctx->Eip; | |
2285 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
2286 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
2287 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
2288 // set correct result values and continue after idiv instruction | |
2289 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
2290 ctx->Eax = (DWORD)min_jint; // result | |
2291 ctx->Edx = (DWORD)0; // remainder | |
2292 // Continue the execution | |
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2293 #endif |
0 | 2294 #endif |
2295 return EXCEPTION_CONTINUE_EXECUTION; | |
2296 } | |
2297 | |
2298 #ifndef _WIN64 | |
2299 //----------------------------------------------------------------------------- | |
2300 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
1214
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6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
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2301 // handle exception caused by native method modifying control word |
0 | 2302 PCONTEXT ctx = exceptionInfo->ContextRecord; |
2303 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2304 | |
2305 switch (exception_code) { | |
2306 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
2307 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
2308 case EXCEPTION_FLT_INEXACT_RESULT: | |
2309 case EXCEPTION_FLT_INVALID_OPERATION: | |
2310 case EXCEPTION_FLT_OVERFLOW: | |
2311 case EXCEPTION_FLT_STACK_CHECK: | |
2312 case EXCEPTION_FLT_UNDERFLOW: | |
2313 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
2314 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
2315 // Restore FPCW and mask out FLT exceptions | |
2316 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
2317 // Mask out pending FLT exceptions | |
2318 ctx->FloatSave.StatusWord &= 0xffffff00; | |
2319 return EXCEPTION_CONTINUE_EXECUTION; | |
2320 } | |
2321 } | |
1214
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2322 |
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|
2323 if (prev_uef_handler != NULL) { |
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6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
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2324 // We didn't handle this exception so pass it to the previous |
0fc941df6fb7
6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
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|
2325 // UnhandledExceptionFilter. |
0fc941df6fb7
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2326 return (prev_uef_handler)(exceptionInfo); |
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diff
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|
2327 } |
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diff
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|
2328 |
0 | 2329 return EXCEPTION_CONTINUE_SEARCH; |
2330 } | |
2331 #else //_WIN64 | |
2332 /* | |
2333 On Windows, the mxcsr control bits are non-volatile across calls | |
2334 See also CR 6192333 | |
2335 If EXCEPTION_FLT_* happened after some native method modified | |
2336 mxcsr - it is not a jvm fault. | |
2337 However should we decide to restore of mxcsr after a faulty | |
2338 native method we can uncomment following code | |
2339 jint MxCsr = INITIAL_MXCSR; | |
2340 // we can't use StubRoutines::addr_mxcsr_std() | |
2341 // because in Win64 mxcsr is not saved there | |
2342 if (MxCsr != ctx->MxCsr) { | |
2343 ctx->MxCsr = MxCsr; | |
2344 return EXCEPTION_CONTINUE_EXECUTION; | |
2345 } | |
2346 | |
2347 */ | |
17567 | 2348 #endif // _WIN64 |
2349 | |
0 | 2350 |
2351 static inline void report_error(Thread* t, DWORD exception_code, | |
2352 address addr, void* siginfo, void* context) { | |
2353 VMError err(t, exception_code, addr, siginfo, context); | |
2354 err.report_and_die(); | |
2355 | |
2356 // If UseOsErrorReporting, this will return here and save the error file | |
2357 // somewhere where we can find it in the minidump. | |
2358 } | |
2359 | |
2360 //----------------------------------------------------------------------------- | |
2361 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2362 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
2363 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2364 #ifdef _M_IA64 | |
7994 | 2365 // On Itanium, we need the "precise pc", which has the slot number coded |
2366 // into the least 4 bits: 0000=slot0, 0100=slot1, 1000=slot2 (Windows format). | |
2367 address pc = (address) exceptionInfo->ExceptionRecord->ExceptionAddress; | |
2368 // Convert the pc to "Unix format", which has the slot number coded | |
2369 // into the least 2 bits: 0000=slot0, 0001=slot1, 0010=slot2 | |
2370 // This is needed for IA64 because "relocation" / "implicit null check" / "poll instruction" | |
2371 // information is saved in the Unix format. | |
2372 address pc_unix_format = (address) ((((uint64_t)pc) & 0xFFFFFFFFFFFFFFF0) | ((((uint64_t)pc) & 0xF) >> 2)); | |
23004
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diff
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|
2373 #else |
9a23a160ca57
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|
2374 #ifdef _M_AMD64 |
0 | 2375 address pc = (address) exceptionInfo->ContextRecord->Rip; |
23004
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diff
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|
2376 #else |
0 | 2377 address pc = (address) exceptionInfo->ContextRecord->Eip; |
23004
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diff
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|
2378 #endif |
0 | 2379 #endif |
2380 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
2381 | |
11127 | 2382 // Handle SafeFetch32 and SafeFetchN exceptions. |
2383 if (StubRoutines::is_safefetch_fault(pc)) { | |
2384 return Handle_Exception(exceptionInfo, StubRoutines::continuation_for_safefetch_fault(pc)); | |
2385 } | |
2386 | |
0 | 2387 #ifndef _WIN64 |
2388 // Execution protection violation - win32 running on AMD64 only | |
2389 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
2390 // This is safe to do because we have a new/unique ExceptionInformation | |
2391 // code for this condition. | |
2392 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2393 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2394 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
2395 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2396 | |
2397 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
2398 int page_size = os::vm_page_size(); | |
2399 | |
2400 // Make sure the pc and the faulting address are sane. | |
2401 // | |
2402 // If an instruction spans a page boundary, and the page containing | |
2403 // the beginning of the instruction is executable but the following | |
2404 // page is not, the pc and the faulting address might be slightly | |
2405 // different - we still want to unguard the 2nd page in this case. | |
2406 // | |
2407 // 15 bytes seems to be a (very) safe value for max instruction size. | |
2408 bool pc_is_near_addr = | |
2409 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
2410 bool instr_spans_page_boundary = | |
2411 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
2412 (intptr_t) page_size) > 0); | |
2413 | |
2414 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
2415 static volatile address last_addr = | |
2416 (address) os::non_memory_address_word(); | |
2417 | |
2418 // In conservative mode, don't unguard unless the address is in the VM | |
2419 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
2420 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
2421 | |
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
467
diff
changeset
|
2422 // Set memory to RWX and retry |
0 | 2423 address page_start = |
2424 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
467
diff
changeset
|
2425 bool res = os::protect_memory((char*) page_start, page_size, |
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
467
diff
changeset
|
2426 os::MEM_PROT_RWX); |
0 | 2427 |
2428 if (PrintMiscellaneous && Verbose) { | |
2429 char buf[256]; | |
2430 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
2431 "at " INTPTR_FORMAT | |
2432 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
2433 page_start, (res ? "success" : strerror(errno))); | |
2434 tty->print_raw_cr(buf); | |
2435 } | |
2436 | |
2437 // Set last_addr so if we fault again at the same address, we don't | |
2438 // end up in an endless loop. | |
2439 // | |
2440 // There are two potential complications here. Two threads trapping | |
2441 // at the same address at the same time could cause one of the | |
2442 // threads to think it already unguarded, and abort the VM. Likely | |
2443 // very rare. | |
2444 // | |
2445 // The other race involves two threads alternately trapping at | |
2446 // different addresses and failing to unguard the page, resulting in | |
2447 // an endless loop. This condition is probably even more unlikely | |
2448 // than the first. | |
2449 // | |
2450 // Although both cases could be avoided by using locks or thread | |
2451 // local last_addr, these solutions are unnecessary complication: | |
2452 // this handler is a best-effort safety net, not a complete solution. | |
2453 // It is disabled by default and should only be used as a workaround | |
2454 // in case we missed any no-execute-unsafe VM code. | |
2455 | |
2456 last_addr = addr; | |
2457 | |
2458 return EXCEPTION_CONTINUE_EXECUTION; | |
2459 } | |
2460 } | |
2461 | |
2462 // Last unguard failed or not unguarding | |
2463 tty->print_raw_cr("Execution protection violation"); | |
2464 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
2465 exceptionInfo->ContextRecord); | |
2466 return EXCEPTION_CONTINUE_SEARCH; | |
2467 } | |
2468 } | |
2469 #endif // _WIN64 | |
2470 | |
2471 // Check to see if we caught the safepoint code in the | |
2472 // process of write protecting the memory serialization page. | |
2473 // It write enables the page immediately after protecting it | |
2474 // so just return. | |
2475 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
2476 JavaThread* thread = (JavaThread*) t; | |
2477 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2478 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2479 if ( os::is_memory_serialize_page(thread, addr) ) { | |
2480 // Block current thread until the memory serialize page permission restored. | |
2481 os::block_on_serialize_page_trap(); | |
2482 return EXCEPTION_CONTINUE_EXECUTION; | |
2483 } | |
2484 } | |
2485 | |
17739
98af1e198e73
8037226: compiler/7196199/Test7196199.java fails on 32-bit linux with MaxVectorSize > 16
kvn
parents:
17716
diff
changeset
|
2486 if ((exception_code == EXCEPTION_ACCESS_VIOLATION) && |
98af1e198e73
8037226: compiler/7196199/Test7196199.java fails on 32-bit linux with MaxVectorSize > 16
kvn
parents:
17716
diff
changeset
|
2487 VM_Version::is_cpuinfo_segv_addr(pc)) { |
98af1e198e73
8037226: compiler/7196199/Test7196199.java fails on 32-bit linux with MaxVectorSize > 16
kvn
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17716
diff
changeset
|
2488 // Verify that OS save/restore AVX registers. |
98af1e198e73
8037226: compiler/7196199/Test7196199.java fails on 32-bit linux with MaxVectorSize > 16
kvn
parents:
17716
diff
changeset
|
2489 return Handle_Exception(exceptionInfo, VM_Version::cpuinfo_cont_addr()); |
98af1e198e73
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kvn
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17716
diff
changeset
|
2490 } |
98af1e198e73
8037226: compiler/7196199/Test7196199.java fails on 32-bit linux with MaxVectorSize > 16
kvn
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17716
diff
changeset
|
2491 |
0 | 2492 if (t != NULL && t->is_Java_thread()) { |
2493 JavaThread* thread = (JavaThread*) t; | |
2494 bool in_java = thread->thread_state() == _thread_in_Java; | |
2495 | |
2496 // Handle potential stack overflows up front. | |
2497 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
2498 if (os::uses_stack_guard_pages()) { | |
2499 #ifdef _M_IA64 | |
7994 | 2500 // Use guard page for register stack. |
0 | 2501 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; |
2502 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
7994 | 2503 // Check for a register stack overflow on Itanium |
2504 if (thread->addr_inside_register_stack_red_zone(addr)) { | |
2505 // Fatal red zone violation happens if the Java program | |
2506 // catches a StackOverflow error and does so much processing | |
2507 // that it runs beyond the unprotected yellow guard zone. As | |
2508 // a result, we are out of here. | |
2509 fatal("ERROR: Unrecoverable stack overflow happened. JVM will exit."); | |
2510 } else if(thread->addr_inside_register_stack(addr)) { | |
2511 // Disable the yellow zone which sets the state that | |
2512 // we've got a stack overflow problem. | |
2513 if (thread->stack_yellow_zone_enabled()) { | |
2514 thread->disable_stack_yellow_zone(); | |
2515 } | |
2516 // Give us some room to process the exception. | |
2517 thread->disable_register_stack_guard(); | |
2518 // Tracing with +Verbose. | |
2519 if (Verbose) { | |
2520 tty->print_cr("SOF Compiled Register Stack overflow at " INTPTR_FORMAT " (SIGSEGV)", pc); | |
2521 tty->print_cr("Register Stack access at " INTPTR_FORMAT, addr); | |
2522 tty->print_cr("Register Stack base " INTPTR_FORMAT, thread->register_stack_base()); | |
2523 tty->print_cr("Register Stack [" INTPTR_FORMAT "," INTPTR_FORMAT "]", | |
2524 thread->register_stack_base(), | |
2525 thread->register_stack_base() + thread->stack_size()); | |
2526 } | |
2527 | |
2528 // Reguard the permanent register stack red zone just to be sure. | |
2529 // We saw Windows silently disabling this without telling us. | |
2530 thread->enable_register_stack_red_zone(); | |
2531 | |
2532 return Handle_Exception(exceptionInfo, | |
2533 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
0 | 2534 } |
2535 #endif | |
2536 if (thread->stack_yellow_zone_enabled()) { | |
2537 // Yellow zone violation. The o/s has unprotected the first yellow | |
2538 // zone page for us. Note: must call disable_stack_yellow_zone to | |
2539 // update the enabled status, even if the zone contains only one page. | |
2540 thread->disable_stack_yellow_zone(); | |
2541 // If not in java code, return and hope for the best. | |
2542 return in_java ? Handle_Exception(exceptionInfo, | |
2543 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
2544 : EXCEPTION_CONTINUE_EXECUTION; | |
2545 } else { | |
2546 // Fatal red zone violation. | |
2547 thread->disable_stack_red_zone(); | |
2548 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
2549 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2550 exceptionInfo->ContextRecord); | |
2551 return EXCEPTION_CONTINUE_SEARCH; | |
2552 } | |
2553 } else if (in_java) { | |
2554 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
2555 // a one-time-only guard page, which it has released to us. The next | |
2556 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
2557 return Handle_Exception(exceptionInfo, | |
2558 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2559 } else { | |
2560 // Can only return and hope for the best. Further stack growth will | |
2561 // result in an ACCESS_VIOLATION. | |
2562 return EXCEPTION_CONTINUE_EXECUTION; | |
2563 } | |
2564 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2565 // Either stack overflow or null pointer exception. | |
2566 if (in_java) { | |
2567 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2568 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2569 address stack_end = thread->stack_base() - thread->stack_size(); | |
2570 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
2571 // Stack overflow. | |
2572 assert(!os::uses_stack_guard_pages(), | |
2573 "should be caught by red zone code above."); | |
2574 return Handle_Exception(exceptionInfo, | |
2575 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
2576 } | |
2577 // | |
2578 // Check for safepoint polling and implicit null | |
2579 // We only expect null pointers in the stubs (vtable) | |
2580 // the rest are checked explicitly now. | |
2581 // | |
2582 CodeBlob* cb = CodeCache::find_blob(pc); | |
2583 if (cb != NULL) { | |
2584 if (os::is_poll_address(addr)) { | |
2585 address stub = SharedRuntime::get_poll_stub(pc); | |
2586 return Handle_Exception(exceptionInfo, stub); | |
2587 } | |
2588 } | |
2589 { | |
2590 #ifdef _WIN64 | |
2591 // | |
2592 // If it's a legal stack address map the entire region in | |
2593 // | |
2594 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
2595 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
2596 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
2597 addr = (address)((uintptr_t)addr & | |
2598 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
656 | 2599 os::commit_memory((char *)addr, thread->stack_base() - addr, |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
2600 !ExecMem); |
0 | 2601 return EXCEPTION_CONTINUE_EXECUTION; |
2602 } | |
2603 else | |
2604 #endif | |
2605 { | |
2606 // Null pointer exception. | |
2607 #ifdef _M_IA64 | |
7994 | 2608 // Process implicit null checks in compiled code. Note: Implicit null checks |
2609 // can happen even if "ImplicitNullChecks" is disabled, e.g. in vtable stubs. | |
2610 if (CodeCache::contains((void*) pc_unix_format) && !MacroAssembler::needs_explicit_null_check((intptr_t) addr)) { | |
2611 CodeBlob *cb = CodeCache::find_blob_unsafe(pc_unix_format); | |
2612 // Handle implicit null check in UEP method entry | |
2613 if (cb && (cb->is_frame_complete_at(pc) || | |
2614 (cb->is_nmethod() && ((nmethod *)cb)->inlinecache_check_contains(pc)))) { | |
2615 if (Verbose) { | |
2616 intptr_t *bundle_start = (intptr_t*) ((intptr_t) pc_unix_format & 0xFFFFFFFFFFFFFFF0); | |
2617 tty->print_cr("trap: null_check at " INTPTR_FORMAT " (SIGSEGV)", pc_unix_format); | |
2618 tty->print_cr(" to addr " INTPTR_FORMAT, addr); | |
2619 tty->print_cr(" bundle is " INTPTR_FORMAT " (high), " INTPTR_FORMAT " (low)", | |
2620 *(bundle_start + 1), *bundle_start); | |
0 | 2621 } |
2622 return Handle_Exception(exceptionInfo, | |
7994 | 2623 SharedRuntime::continuation_for_implicit_exception(thread, pc_unix_format, SharedRuntime::IMPLICIT_NULL)); |
0 | 2624 } |
7994 | 2625 } |
2626 | |
2627 // Implicit null checks were processed above. Hence, we should not reach | |
2628 // here in the usual case => die! | |
2629 if (Verbose) tty->print_raw_cr("Access violation, possible null pointer exception"); | |
0 | 2630 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, |
2631 exceptionInfo->ContextRecord); | |
2632 return EXCEPTION_CONTINUE_SEARCH; | |
7994 | 2633 |
2634 #else // !IA64 | |
0 | 2635 |
2636 // Windows 98 reports faulting addresses incorrectly | |
2637 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
2638 !os::win32::is_nt()) { | |
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2639 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2640 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
0 | 2641 } |
2642 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2643 exceptionInfo->ContextRecord); | |
2644 return EXCEPTION_CONTINUE_SEARCH; | |
2645 #endif | |
2646 } | |
2647 } | |
2648 } | |
2649 | |
2650 #ifdef _WIN64 | |
2651 // Special care for fast JNI field accessors. | |
2652 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
2653 // in and the heap gets shrunk before the field access. | |
2654 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2655 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
2656 if (addr != (address)-1) { | |
2657 return Handle_Exception(exceptionInfo, addr); | |
2658 } | |
2659 } | |
2660 #endif | |
2661 | |
2662 // Stack overflow or null pointer exception in native code. | |
2663 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2664 exceptionInfo->ContextRecord); | |
2665 return EXCEPTION_CONTINUE_SEARCH; | |
7994 | 2666 } // /EXCEPTION_ACCESS_VIOLATION |
2667 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
2668 #if defined _M_IA64 | |
2669 else if ((exception_code == EXCEPTION_ILLEGAL_INSTRUCTION || | |
2670 exception_code == EXCEPTION_ILLEGAL_INSTRUCTION_2)) { | |
2671 M37 handle_wrong_method_break(0, NativeJump::HANDLE_WRONG_METHOD, PR0); | |
2672 | |
2673 // Compiled method patched to be non entrant? Following conditions must apply: | |
2674 // 1. must be first instruction in bundle | |
2675 // 2. must be a break instruction with appropriate code | |
2676 if((((uint64_t) pc & 0x0F) == 0) && | |
2677 (((IPF_Bundle*) pc)->get_slot0() == handle_wrong_method_break.bits())) { | |
2678 return Handle_Exception(exceptionInfo, | |
2679 (address)SharedRuntime::get_handle_wrong_method_stub()); | |
2680 } | |
2681 } // /EXCEPTION_ILLEGAL_INSTRUCTION | |
2682 #endif | |
2683 | |
0 | 2684 |
2685 if (in_java) { | |
2686 switch (exception_code) { | |
2687 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
2688 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
2689 | |
2690 case EXCEPTION_INT_OVERFLOW: | |
2691 return Handle_IDiv_Exception(exceptionInfo); | |
2692 | |
2693 } // switch | |
2694 } | |
2695 #ifndef _WIN64 | |
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2696 if (((thread->thread_state() == _thread_in_Java) || |
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2697 (thread->thread_state() == _thread_in_native)) && |
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2698 exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION) |
0 | 2699 { |
2700 LONG result=Handle_FLT_Exception(exceptionInfo); | |
2701 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
2702 } | |
2703 #endif //_WIN64 | |
2704 } | |
2705 | |
2706 if (exception_code != EXCEPTION_BREAKPOINT) { | |
2707 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
2708 exceptionInfo->ContextRecord); | |
2709 } | |
2710 return EXCEPTION_CONTINUE_SEARCH; | |
2711 } | |
2712 | |
2713 #ifndef _WIN64 | |
2714 // Special care for fast JNI accessors. | |
2715 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
2716 // the heap gets shrunk before the field access. | |
2717 // Need to install our own structured exception handler since native code may | |
2718 // install its own. | |
2719 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
2720 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
2721 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
2722 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
2723 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
2724 if (addr != (address)-1) { | |
2725 return Handle_Exception(exceptionInfo, addr); | |
2726 } | |
2727 } | |
2728 return EXCEPTION_CONTINUE_SEARCH; | |
2729 } | |
2730 | |
2731 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
2732 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
2733 __try { \ | |
2734 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
2735 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
2736 } \ | |
2737 return 0; \ | |
2738 } | |
2739 | |
2740 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
2741 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
2742 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
2743 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
2744 DEFINE_FAST_GETFIELD(jint, int, Int) | |
2745 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
2746 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
2747 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
2748 | |
2749 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
2750 switch (type) { | |
2751 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
2752 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
2753 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
2754 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
2755 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
2756 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
2757 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
2758 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
2759 default: ShouldNotReachHere(); | |
2760 } | |
2761 return (address)-1; | |
2762 } | |
2763 #endif | |
2764 | |
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2765 void os::win32::call_test_func_with_wrapper(void (*funcPtr)(void)) { |
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2766 // Install a win32 structured exception handler around the test |
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2767 // function call so the VM can generate an error dump if needed. |
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2768 __try { |
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2769 (*funcPtr)(); |
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2770 } __except(topLevelExceptionFilter( |
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2771 (_EXCEPTION_POINTERS*)_exception_info())) { |
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2772 // Nothing to do. |
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2773 } |
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|
2774 } |
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2775 |
0 | 2776 // Virtual Memory |
2777 | |
2778 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
2779 int os::vm_allocation_granularity() { | |
2780 return os::win32::vm_allocation_granularity(); | |
2781 } | |
2782 | |
2783 // Windows large page support is available on Windows 2003. In order to use | |
2784 // large page memory, the administrator must first assign additional privilege | |
2785 // to the user: | |
2786 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
2787 // + select Local Policies -> User Rights Assignment | |
2788 // + double click "Lock pages in memory", add users and/or groups | |
2789 // + reboot | |
2790 // Note the above steps are needed for administrator as well, as administrators | |
2791 // by default do not have the privilege to lock pages in memory. | |
2792 // | |
2793 // Note about Windows 2003: although the API supports committing large page | |
2794 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
2795 // scenario, I found through experiment it only uses large page if the entire | |
2796 // memory region is reserved and committed in a single VirtualAlloc() call. | |
2797 // This makes Windows large page support more or less like Solaris ISM, in | |
2798 // that the entire heap must be committed upfront. This probably will change | |
2799 // in the future, if so the code below needs to be revisited. | |
2800 | |
2801 #ifndef MEM_LARGE_PAGES | |
2802 #define MEM_LARGE_PAGES 0x20000000 | |
2803 #endif | |
2804 | |
2805 static HANDLE _hProcess; | |
2806 static HANDLE _hToken; | |
2807 | |
3885 | 2808 // Container for NUMA node list info |
2809 class NUMANodeListHolder { | |
2810 private: | |
2811 int *_numa_used_node_list; // allocated below | |
2812 int _numa_used_node_count; | |
2813 | |
2814 void free_node_list() { | |
2815 if (_numa_used_node_list != NULL) { | |
6197 | 2816 FREE_C_HEAP_ARRAY(int, _numa_used_node_list, mtInternal); |
3885 | 2817 } |
2818 } | |
2819 | |
2820 public: | |
2821 NUMANodeListHolder() { | |
2822 _numa_used_node_count = 0; | |
2823 _numa_used_node_list = NULL; | |
2824 // do rest of initialization in build routine (after function pointers are set up) | |
2825 } | |
2826 | |
2827 ~NUMANodeListHolder() { | |
2828 free_node_list(); | |
2829 } | |
2830 | |
2831 bool build() { | |
2832 DWORD_PTR proc_aff_mask; | |
2833 DWORD_PTR sys_aff_mask; | |
2834 if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false; | |
2835 ULONG highest_node_number; | |
2836 if (!os::Kernel32Dll::GetNumaHighestNodeNumber(&highest_node_number)) return false; | |
2837 free_node_list(); | |
6197 | 2838 _numa_used_node_list = NEW_C_HEAP_ARRAY(int, highest_node_number + 1, mtInternal); |
3885 | 2839 for (unsigned int i = 0; i <= highest_node_number; i++) { |
2840 ULONGLONG proc_mask_numa_node; | |
2841 if (!os::Kernel32Dll::GetNumaNodeProcessorMask(i, &proc_mask_numa_node)) return false; | |
2842 if ((proc_aff_mask & proc_mask_numa_node)!=0) { | |
2843 _numa_used_node_list[_numa_used_node_count++] = i; | |
2844 } | |
2845 } | |
2846 return (_numa_used_node_count > 1); | |
2847 } | |
2848 | |
2849 int get_count() {return _numa_used_node_count;} | |
2850 int get_node_list_entry(int n) { | |
2851 // for indexes out of range, returns -1 | |
2852 return (n < _numa_used_node_count ? _numa_used_node_list[n] : -1); | |
2853 } | |
2854 | |
2855 } numa_node_list_holder; | |
2856 | |
2857 | |
2858 | |
0 | 2859 static size_t _large_page_size = 0; |
2860 | |
2861 static bool resolve_functions_for_large_page_init() { | |
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2862 return os::Kernel32Dll::GetLargePageMinimumAvailable() && |
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2863 os::Advapi32Dll::AdvapiAvailable(); |
0 | 2864 } |
2865 | |
2866 static bool request_lock_memory_privilege() { | |
2867 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
2868 os::current_process_id()); | |
2869 | |
2870 LUID luid; | |
2871 if (_hProcess != NULL && | |
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2872 os::Advapi32Dll::OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && |
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2873 os::Advapi32Dll::LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { |
0 | 2874 |
2875 TOKEN_PRIVILEGES tp; | |
2876 tp.PrivilegeCount = 1; | |
2877 tp.Privileges[0].Luid = luid; | |
2878 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
2879 | |
2880 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
2881 // privilege. Check GetLastError() too. See MSDN document. | |
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2882 if (os::Advapi32Dll::AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && |
0 | 2883 (GetLastError() == ERROR_SUCCESS)) { |
2884 return true; | |
2885 } | |
2886 } | |
2887 | |
2888 return false; | |
2889 } | |
2890 | |
2891 static void cleanup_after_large_page_init() { | |
2892 if (_hProcess) CloseHandle(_hProcess); | |
2893 _hProcess = NULL; | |
2894 if (_hToken) CloseHandle(_hToken); | |
2895 _hToken = NULL; | |
2896 } | |
2897 | |
3885 | 2898 static bool numa_interleaving_init() { |
2899 bool success = false; | |
2900 bool use_numa_interleaving_specified = !FLAG_IS_DEFAULT(UseNUMAInterleaving); | |
2901 | |
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2902 // print a warning if UseNUMAInterleaving flag is specified on command line |
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2903 bool warn_on_failure = use_numa_interleaving_specified; |
3885 | 2904 # define WARN(msg) if (warn_on_failure) { warning(msg); } |
2905 | |
2906 // NUMAInterleaveGranularity cannot be less than vm_allocation_granularity (or _large_page_size if using large pages) | |
2907 size_t min_interleave_granularity = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
2908 NUMAInterleaveGranularity = align_size_up(NUMAInterleaveGranularity, min_interleave_granularity); | |
2909 | |
2910 if (os::Kernel32Dll::NumaCallsAvailable()) { | |
2911 if (numa_node_list_holder.build()) { | |
2912 if (PrintMiscellaneous && Verbose) { | |
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2913 tty->print("NUMA UsedNodeCount=%d, namely ", numa_node_list_holder.get_count()); |
3885 | 2914 for (int i = 0; i < numa_node_list_holder.get_count(); i++) { |
2915 tty->print("%d ", numa_node_list_holder.get_node_list_entry(i)); | |
2916 } | |
2917 tty->print("\n"); | |
2918 } | |
2919 success = true; | |
2920 } else { | |
2921 WARN("Process does not cover multiple NUMA nodes."); | |
2922 } | |
2923 } else { | |
2924 WARN("NUMA Interleaving is not supported by the operating system."); | |
2925 } | |
2926 if (!success) { | |
2927 if (use_numa_interleaving_specified) WARN("...Ignoring UseNUMAInterleaving flag."); | |
2928 } | |
2929 return success; | |
2930 #undef WARN | |
2931 } | |
2932 | |
2933 // this routine is used whenever we need to reserve a contiguous VA range | |
2934 // but we need to make separate VirtualAlloc calls for each piece of the range | |
2935 // Reasons for doing this: | |
2936 // * UseLargePagesIndividualAllocation was set (normally only needed on WS2003 but possible to be set otherwise) | |
2937 // * UseNUMAInterleaving requires a separate node for each piece | |
2938 static char* allocate_pages_individually(size_t bytes, char* addr, DWORD flags, DWORD prot, | |
2939 bool should_inject_error=false) { | |
2940 char * p_buf; | |
2941 // note: at setup time we guaranteed that NUMAInterleaveGranularity was aligned up to a page size | |
2942 size_t page_size = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
2943 size_t chunk_size = UseNUMAInterleaving ? NUMAInterleaveGranularity : page_size; | |
2944 | |
2945 // first reserve enough address space in advance since we want to be | |
2946 // able to break a single contiguous virtual address range into multiple | |
2947 // large page commits but WS2003 does not allow reserving large page space | |
2948 // so we just use 4K pages for reserve, this gives us a legal contiguous | |
2949 // address space. then we will deallocate that reservation, and re alloc | |
2950 // using large pages | |
2951 const size_t size_of_reserve = bytes + chunk_size; | |
2952 if (bytes > size_of_reserve) { | |
2953 // Overflowed. | |
2954 return NULL; | |
2955 } | |
2956 p_buf = (char *) VirtualAlloc(addr, | |
2957 size_of_reserve, // size of Reserve | |
2958 MEM_RESERVE, | |
2959 PAGE_READWRITE); | |
2960 // If reservation failed, return NULL | |
2961 if (p_buf == NULL) return NULL; | |
20360 | 2962 MemTracker::record_virtual_memory_reserve((address)p_buf, size_of_reserve, CALLER_PC); |
3885 | 2963 os::release_memory(p_buf, bytes + chunk_size); |
2964 | |
2965 // we still need to round up to a page boundary (in case we are using large pages) | |
2966 // but not to a chunk boundary (in case InterleavingGranularity doesn't align with page size) | |
2967 // instead we handle this in the bytes_to_rq computation below | |
2968 p_buf = (char *) align_size_up((size_t)p_buf, page_size); | |
2969 | |
2970 // now go through and allocate one chunk at a time until all bytes are | |
2971 // allocated | |
2972 size_t bytes_remaining = bytes; | |
2973 // An overflow of align_size_up() would have been caught above | |
2974 // in the calculation of size_of_reserve. | |
2975 char * next_alloc_addr = p_buf; | |
2976 HANDLE hProc = GetCurrentProcess(); | |
2977 | |
2978 #ifdef ASSERT | |
2979 // Variable for the failure injection | |
2980 long ran_num = os::random(); | |
2981 size_t fail_after = ran_num % bytes; | |
2982 #endif | |
2983 | |
2984 int count=0; | |
2985 while (bytes_remaining) { | |
2986 // select bytes_to_rq to get to the next chunk_size boundary | |
2987 | |
2988 size_t bytes_to_rq = MIN2(bytes_remaining, chunk_size - ((size_t)next_alloc_addr % chunk_size)); | |
2989 // Note allocate and commit | |
2990 char * p_new; | |
2991 | |
2992 #ifdef ASSERT | |
2993 bool inject_error_now = should_inject_error && (bytes_remaining <= fail_after); | |
2994 #else | |
2995 const bool inject_error_now = false; | |
2996 #endif | |
2997 | |
2998 if (inject_error_now) { | |
2999 p_new = NULL; | |
3000 } else { | |
3001 if (!UseNUMAInterleaving) { | |
3002 p_new = (char *) VirtualAlloc(next_alloc_addr, | |
3003 bytes_to_rq, | |
3004 flags, | |
3005 prot); | |
3006 } else { | |
3007 // get the next node to use from the used_node_list | |
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3008 assert(numa_node_list_holder.get_count() > 0, "Multiple NUMA nodes expected"); |
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3009 DWORD node = numa_node_list_holder.get_node_list_entry(count % numa_node_list_holder.get_count()); |
3885 | 3010 p_new = (char *)os::Kernel32Dll::VirtualAllocExNuma(hProc, |
3011 next_alloc_addr, | |
3012 bytes_to_rq, | |
3013 flags, | |
3014 prot, | |
3015 node); | |
3016 } | |
3017 } | |
3018 | |
3019 if (p_new == NULL) { | |
3020 // Free any allocated pages | |
3021 if (next_alloc_addr > p_buf) { | |
3022 // Some memory was committed so release it. | |
3023 size_t bytes_to_release = bytes - bytes_remaining; | |
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3024 // NMT has yet to record any individual blocks, so it |
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3025 // need to create a dummy 'reserve' record to match |
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3026 // the release. |
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3027 MemTracker::record_virtual_memory_reserve((address)p_buf, |
20360 | 3028 bytes_to_release, CALLER_PC); |
3885 | 3029 os::release_memory(p_buf, bytes_to_release); |
3030 } | |
3031 #ifdef ASSERT | |
3032 if (should_inject_error) { | |
3033 if (TracePageSizes && Verbose) { | |
3034 tty->print_cr("Reserving pages individually failed."); | |
3035 } | |
3036 } | |
3037 #endif | |
3038 return NULL; | |
3039 } | |
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3040 |
3885 | 3041 bytes_remaining -= bytes_to_rq; |
3042 next_alloc_addr += bytes_to_rq; | |
3043 count++; | |
3044 } | |
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3045 // Although the memory is allocated individually, it is returned as one. |
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3046 // NMT records it as one block. |
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3047 if ((flags & MEM_COMMIT) != 0) { |
20360 | 3048 MemTracker::record_virtual_memory_reserve_and_commit((address)p_buf, bytes, CALLER_PC); |
10986
1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
zgu
parents:
10969
diff
changeset
|
3049 } else { |
20360 | 3050 MemTracker::record_virtual_memory_reserve((address)p_buf, bytes, CALLER_PC); |
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3051 } |
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3052 |
3885 | 3053 // made it this far, success |
3054 return p_buf; | |
3055 } | |
3056 | |
3057 | |
3058 | |
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3059 void os::large_page_init() { |
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3060 if (!UseLargePages) return; |
0 | 3061 |
3062 // print a warning if any large page related flag is specified on command line | |
3063 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
3064 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
3065 bool success = false; | |
3066 | |
3067 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
3068 if (resolve_functions_for_large_page_init()) { | |
3069 if (request_lock_memory_privilege()) { | |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3070 size_t s = os::Kernel32Dll::GetLargePageMinimum(); |
0 | 3071 if (s) { |
3072 #if defined(IA32) || defined(AMD64) | |
3073 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
3074 WARN("JVM cannot use large pages bigger than 4mb."); | |
3075 } else { | |
3076 #endif | |
3077 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
3078 _large_page_size = LargePageSizeInBytes; | |
3079 } else { | |
3080 _large_page_size = s; | |
3081 } | |
3082 success = true; | |
3083 #if defined(IA32) || defined(AMD64) | |
3084 } | |
3085 #endif | |
3086 } else { | |
3087 WARN("Large page is not supported by the processor."); | |
3088 } | |
3089 } else { | |
3090 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
3091 } | |
3092 } else { | |
3093 WARN("Large page is not supported by the operating system."); | |
3094 } | |
3095 #undef WARN | |
3096 | |
3097 const size_t default_page_size = (size_t) vm_page_size(); | |
3098 if (success && _large_page_size > default_page_size) { | |
3099 _page_sizes[0] = _large_page_size; | |
3100 _page_sizes[1] = default_page_size; | |
3101 _page_sizes[2] = 0; | |
3102 } | |
3103 | |
3104 cleanup_after_large_page_init(); | |
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3105 UseLargePages = success; |
0 | 3106 } |
3107 | |
3108 // On win32, one cannot release just a part of reserved memory, it's an | |
3109 // all or nothing deal. When we split a reservation, we must break the | |
3110 // reservation into two reservations. | |
6197 | 3111 void os::pd_split_reserved_memory(char *base, size_t size, size_t split, |
0 | 3112 bool realloc) { |
3113 if (size > 0) { | |
3114 release_memory(base, size); | |
3115 if (realloc) { | |
3116 reserve_memory(split, base); | |
3117 } | |
3118 if (size != split) { | |
3119 reserve_memory(size - split, base + split); | |
3120 } | |
3121 } | |
3122 } | |
3123 | |
7433
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3124 // Multiple threads can race in this code but it's not possible to unmap small sections of |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3125 // virtual space to get requested alignment, like posix-like os's. |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3126 // Windows prevents multiple thread from remapping over each other so this loop is thread-safe. |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3127 char* os::reserve_memory_aligned(size_t size, size_t alignment) { |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3128 assert((alignment & (os::vm_allocation_granularity() - 1)) == 0, |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3129 "Alignment must be a multiple of allocation granularity (page size)"); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3130 assert((size & (alignment -1)) == 0, "size must be 'alignment' aligned"); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3131 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3132 size_t extra_size = size + alignment; |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3133 assert(extra_size >= size, "overflow, size is too large to allow alignment"); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3134 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3135 char* aligned_base = NULL; |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3136 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3137 do { |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3138 char* extra_base = os::reserve_memory(extra_size, NULL, alignment); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3139 if (extra_base == NULL) { |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3140 return NULL; |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3141 } |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3142 // Do manual alignment |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3143 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
|
3144 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3145 os::release_memory(extra_base, extra_size); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3146 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3147 aligned_base = os::reserve_memory(size, aligned_base); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3148 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3149 } while (aligned_base == NULL); |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3150 |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3151 return aligned_base; |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3152 } |
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3153 |
6197 | 3154 char* os::pd_reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { |
0 | 3155 assert((size_t)addr % os::vm_allocation_granularity() == 0, |
3156 "reserve alignment"); | |
3157 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
3885 | 3158 char* res; |
3159 // note that if UseLargePages is on, all the areas that require interleaving | |
3160 // will go thru reserve_memory_special rather than thru here. | |
3161 bool use_individual = (UseNUMAInterleaving && !UseLargePages); | |
3162 if (!use_individual) { | |
3163 res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); | |
3164 } else { | |
3165 elapsedTimer reserveTimer; | |
3166 if( Verbose && PrintMiscellaneous ) reserveTimer.start(); | |
3167 // in numa interleaving, we have to allocate pages individually | |
3168 // (well really chunks of NUMAInterleaveGranularity size) | |
3169 res = allocate_pages_individually(bytes, addr, MEM_RESERVE, PAGE_READWRITE); | |
3170 if (res == NULL) { | |
3171 warning("NUMA page allocation failed"); | |
3172 } | |
3173 if( Verbose && PrintMiscellaneous ) { | |
3174 reserveTimer.stop(); | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
3175 tty->print_cr("reserve_memory of %Ix bytes took " JLONG_FORMAT " ms (" JLONG_FORMAT " ticks)", bytes, |
3885 | 3176 reserveTimer.milliseconds(), reserveTimer.ticks()); |
3177 } | |
3178 } | |
0 | 3179 assert(res == NULL || addr == NULL || addr == res, |
3180 "Unexpected address from reserve."); | |
3885 | 3181 |
0 | 3182 return res; |
3183 } | |
3184 | |
3185 // Reserve memory at an arbitrary address, only if that area is | |
3186 // available (and not reserved for something else). | |
6197 | 3187 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
0 | 3188 // Windows os::reserve_memory() fails of the requested address range is |
3189 // not avilable. | |
3190 return reserve_memory(bytes, requested_addr); | |
3191 } | |
3192 | |
3193 size_t os::large_page_size() { | |
3194 return _large_page_size; | |
3195 } | |
3196 | |
3197 bool os::can_commit_large_page_memory() { | |
3198 // Windows only uses large page memory when the entire region is reserved | |
3199 // and committed in a single VirtualAlloc() call. This may change in the | |
3200 // future, but with Windows 2003 it's not possible to commit on demand. | |
3201 return false; | |
3202 } | |
3203 | |
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3204 bool os::can_execute_large_page_memory() { |
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3205 return true; |
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3206 } |
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3207 |
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3208 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
|
3209 assert(UseLargePages, "only for large pages"); |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3210 |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3211 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
|
3212 return NULL; // Fallback to small pages. |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3213 } |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3214 |
717 | 3215 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
3885 | 3216 const DWORD flags = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
3217 | |
3218 // with large pages, there are two cases where we need to use Individual Allocation | |
3219 // 1) the UseLargePagesIndividualAllocation flag is set (set by default on WS2003) | |
3220 // 2) NUMA Interleaving is enabled, in which case we use a different node for each page | |
3221 if (UseLargePagesIndividualAllocation || UseNUMAInterleaving) { | |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3222 if (TracePageSizes && Verbose) { |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3223 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
|
3224 } |
3885 | 3225 char * p_buf = allocate_pages_individually(bytes, addr, flags, prot, LargePagesIndividualAllocationInjectError); |
3226 if (p_buf == NULL) { | |
3227 // give an appropriate warning message | |
3228 if (UseNUMAInterleaving) { | |
3229 warning("NUMA large page allocation failed, UseLargePages flag ignored"); | |
3230 } | |
3231 if (UseLargePagesIndividualAllocation) { | |
3232 warning("Individually allocated large pages failed, " | |
3233 "use -XX:-UseLargePagesIndividualAllocation to turn off"); | |
3234 } | |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3235 return NULL; |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3236 } |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3237 |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3238 return p_buf; |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3239 |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3240 } else { |
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3241 if (TracePageSizes && Verbose) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3242 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
|
3243 } |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3244 // 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
|
3245 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
|
3246 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
|
3247 if (res != NULL) { |
20360 | 3248 MemTracker::record_virtual_memory_reserve_and_commit((address)res, bytes, CALLER_PC); |
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3249 } |
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3250 |
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3251 return res; |
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3252 } |
0 | 3253 } |
3254 | |
3255 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
|
3256 assert(base != NULL, "Sanity check"); |
0 | 3257 return release_memory(base, bytes); |
3258 } | |
3259 | |
3260 void os::print_statistics() { | |
3261 } | |
3262 | |
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3263 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
|
3264 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
|
3265 char buf[256]; |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3266 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
|
3267 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3268 ", %d) failed; error='%s' (DOS error/errno=%d)", addr, bytes, |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3269 exec, buf_len != 0 ? buf : "<no_error_string>", err); |
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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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|
3270 } |
a837fa3d3f86
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diff
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|
3271 |
6197 | 3272 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) { |
0 | 3273 if (bytes == 0) { |
3274 // Don't bother the OS with noops. | |
3275 return true; | |
3276 } | |
3277 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
3278 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
3279 // Don't attempt to print anything if the OS call fails. We're | |
3280 // probably low on resources, so the print itself may cause crashes. | |
3885 | 3281 |
3282 // unless we have NUMAInterleaving enabled, the range of a commit | |
3283 // is always within a reserve covered by a single VirtualAlloc | |
3284 // in that case we can just do a single commit for the requested size | |
3285 if (!UseNUMAInterleaving) { | |
10969
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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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|
3286 if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) { |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3287 NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, 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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|
3288 return false; |
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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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|
3289 } |
3885 | 3290 if (exec) { |
3291 DWORD oldprot; | |
3292 // Windows doc says to use VirtualProtect to get execute permissions | |
10969
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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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|
3293 if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) { |
a837fa3d3f86
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diff
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|
3294 NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);) |
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diff
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|
3295 return false; |
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3296 } |
3885 | 3297 } |
3298 return true; | |
656 | 3299 } else { |
3885 | 3300 |
3301 // when NUMAInterleaving is enabled, the commit might cover a range that | |
3302 // came from multiple VirtualAlloc reserves (using allocate_pages_individually). | |
3303 // VirtualQuery can help us determine that. The RegionSize that VirtualQuery | |
3304 // returns represents the number of bytes that can be committed in one step. | |
3305 size_t bytes_remaining = bytes; | |
3306 char * next_alloc_addr = addr; | |
3307 while (bytes_remaining > 0) { | |
3308 MEMORY_BASIC_INFORMATION alloc_info; | |
3309 VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info)); | |
3310 size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize); | |
10969
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parents:
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diff
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|
3311 if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT, |
a837fa3d3f86
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|
3312 PAGE_READWRITE) == NULL) { |
a837fa3d3f86
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|
3313 NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq, |
a837fa3d3f86
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diff
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|
3314 exec);) |
3885 | 3315 return false; |
10969
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diff
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|
3316 } |
3885 | 3317 if (exec) { |
3318 DWORD oldprot; | |
10969
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parents:
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diff
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|
3319 if (!VirtualProtect(next_alloc_addr, bytes_to_rq, |
a837fa3d3f86
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|
3320 PAGE_EXECUTE_READWRITE, &oldprot)) { |
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|
3321 NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq, |
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diff
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|
3322 exec);) |
3885 | 3323 return false; |
10969
a837fa3d3f86
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|
3324 } |
3885 | 3325 } |
3326 bytes_remaining -= bytes_to_rq; | |
3327 next_alloc_addr += bytes_to_rq; | |
3328 } | |
3329 } | |
3330 // if we made it this far, return true | |
3331 return true; | |
0 | 3332 } |
3333 | |
6197 | 3334 bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint, |
656 | 3335 bool exec) { |
10969
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|
3336 // alignment_hint is ignored on this OS |
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|
3337 return pd_commit_memory(addr, size, exec); |
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|
3338 } |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3339 |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3340 void os::pd_commit_memory_or_exit(char* addr, size_t size, bool exec, |
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|
3341 const char* mesg) { |
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3342 assert(mesg != NULL, "mesg must be specified"); |
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|
3343 if (!pd_commit_memory(addr, size, exec)) { |
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|
3344 warn_fail_commit_memory(addr, size, exec); |
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|
3345 vm_exit_out_of_memory(size, OOM_MMAP_ERROR, mesg); |
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|
3346 } |
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|
3347 } |
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|
3348 |
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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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|
3349 void os::pd_commit_memory_or_exit(char* addr, size_t size, |
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diff
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|
3350 size_t alignment_hint, bool exec, |
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|
3351 const char* mesg) { |
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|
3352 // alignment_hint is ignored on this OS |
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changeset
|
3353 pd_commit_memory_or_exit(addr, size, exec, mesg); |
0 | 3354 } |
3355 | |
6197 | 3356 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
0 | 3357 if (bytes == 0) { |
3358 // Don't bother the OS with noops. | |
3359 return true; | |
3360 } | |
3361 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
3362 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
6197 | 3363 return (VirtualFree(addr, bytes, MEM_DECOMMIT) != 0); |
3364 } | |
3365 | |
3366 bool os::pd_release_memory(char* addr, size_t bytes) { | |
0 | 3367 return VirtualFree(addr, 0, MEM_RELEASE) != 0; |
3368 } | |
3369 | |
6197 | 3370 bool os::pd_create_stack_guard_pages(char* addr, size_t size) { |
10969
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parents:
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changeset
|
3371 return os::commit_memory(addr, size, !ExecMem); |
1320
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3372 } |
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3373 |
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3374 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3375 return os::uncommit_memory(addr, size); |
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3376 } |
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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1215
diff
changeset
|
3377 |
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3378 // Set protections specified |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3379 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3380 bool is_committed) { |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3381 unsigned int p = 0; |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3382 switch (prot) { |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3383 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3384 case MEM_PROT_READ: p = PAGE_READONLY; break; |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3385 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3386 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3387 default: |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3388 ShouldNotReachHere(); |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3389 } |
1fdb98a17101
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196
diff
changeset
|
3390 |
0 | 3391 DWORD old_status; |
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3392 |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3393 // Strange enough, but on Win32 one can change protection only for committed |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3394 // memory, not a big deal anyway, as bytes less or equal than 64K |
10969
a837fa3d3f86
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diff
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|
3395 if (!is_committed) { |
a837fa3d3f86
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parents:
10405
diff
changeset
|
3396 commit_memory_or_exit(addr, bytes, prot == MEM_PROT_RWX, |
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|
3397 "cannot commit protection page"); |
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3398 } |
1fdb98a17101
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196
diff
changeset
|
3399 // One cannot use os::guard_memory() here, as on Win32 guard page |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
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|
3400 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3401 // |
1fdb98a17101
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196
diff
changeset
|
3402 // Pages in the region become guard pages. Any attempt to access a guard page |
1fdb98a17101
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196
diff
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|
3403 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
1fdb98a17101
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196
diff
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|
3404 // the guard page status. Guard pages thus act as a one-time access alarm. |
1fdb98a17101
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196
diff
changeset
|
3405 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
0 | 3406 } |
3407 | |
3408 bool os::guard_memory(char* addr, size_t bytes) { | |
3409 DWORD old_status; | |
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
467
diff
changeset
|
3410 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
0 | 3411 } |
3412 | |
3413 bool os::unguard_memory(char* addr, size_t bytes) { | |
3414 DWORD old_status; | |
477
24fda36852ce
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coleenp
parents:
467
diff
changeset
|
3415 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
0 | 3416 } |
3417 | |
6197 | 3418 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } |
3419 void os::pd_free_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
0 | 3420 void os::numa_make_global(char *addr, size_t bytes) { } |
141 | 3421 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
0 | 3422 bool os::numa_topology_changed() { return false; } |
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3423 size_t os::numa_get_groups_num() { return MAX2(numa_node_list_holder.get_count(), 1); } |
0 | 3424 int os::numa_get_group_id() { return 0; } |
3425 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3426 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3427 // Provide an answer for UMA systems |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3428 ids[0] = 0; |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3429 return 1; |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3430 } else { |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3431 // check for size bigger than actual groups_num |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3432 size = MIN2(size, numa_get_groups_num()); |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3433 for (int i = 0; i < (int)size; i++) { |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3434 ids[i] = numa_node_list_holder.get_node_list_entry(i); |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3435 } |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3436 return size; |
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3437 } |
0 | 3438 } |
3439 | |
3440 bool os::get_page_info(char *start, page_info* info) { | |
3441 return false; | |
3442 } | |
3443 | |
3444 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
3445 return end; | |
3446 } | |
3447 | |
3448 char* os::non_memory_address_word() { | |
3449 // Must never look like an address returned by reserve_memory, | |
3450 // even in its subfields (as defined by the CPU immediate fields, | |
3451 // if the CPU splits constants across multiple instructions). | |
3452 return (char*)-1; | |
3453 } | |
3454 | |
3455 #define MAX_ERROR_COUNT 100 | |
3456 #define SYS_THREAD_ERROR 0xffffffffUL | |
3457 | |
3458 void os::pd_start_thread(Thread* thread) { | |
3459 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
3460 // Returns previous suspend state: | |
3461 // 0: Thread was not suspended | |
3462 // 1: Thread is running now | |
3463 // >1: Thread is still suspended. | |
3464 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
3465 } | |
3466 | |
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3467 class HighResolutionInterval : public CHeapObj<mtThread> { |
0 | 3468 // The default timer resolution seems to be 10 milliseconds. |
3469 // (Where is this written down?) | |
3470 // If someone wants to sleep for only a fraction of the default, | |
3471 // then we set the timer resolution down to 1 millisecond for | |
3472 // the duration of their interval. | |
3473 // We carefully set the resolution back, since otherwise we | |
3474 // seem to incur an overhead (3%?) that we don't need. | |
3475 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
3476 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
3477 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
3478 // timeBeginPeriod() if the relative error exceeded some threshold. | |
3479 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
3480 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
3481 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
3482 // resolution timers running. | |
3483 private: | |
3484 jlong resolution; | |
3485 public: | |
3486 HighResolutionInterval(jlong ms) { | |
3487 resolution = ms % 10L; | |
3488 if (resolution != 0) { | |
3489 MMRESULT result = timeBeginPeriod(1L); | |
3490 } | |
3491 } | |
3492 ~HighResolutionInterval() { | |
3493 if (resolution != 0) { | |
3494 MMRESULT result = timeEndPeriod(1L); | |
3495 } | |
3496 resolution = 0L; | |
3497 } | |
3498 }; | |
3499 | |
3500 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
3501 jlong limit = (jlong) MAXDWORD; | |
3502 | |
3503 while(ms > limit) { | |
3504 int res; | |
3505 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
3506 return res; | |
3507 ms -= limit; | |
3508 } | |
3509 | |
3510 assert(thread == Thread::current(), "thread consistency check"); | |
3511 OSThread* osthread = thread->osthread(); | |
3512 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
3513 int result; | |
3514 if (interruptable) { | |
3515 assert(thread->is_Java_thread(), "must be java thread"); | |
3516 JavaThread *jt = (JavaThread *) thread; | |
3517 ThreadBlockInVM tbivm(jt); | |
3518 | |
3519 jt->set_suspend_equivalent(); | |
3520 // cleared by handle_special_suspend_equivalent_condition() or | |
3521 // java_suspend_self() via check_and_wait_while_suspended() | |
3522 | |
3523 HANDLE events[1]; | |
3524 events[0] = osthread->interrupt_event(); | |
3525 HighResolutionInterval *phri=NULL; | |
3526 if(!ForceTimeHighResolution) | |
3527 phri = new HighResolutionInterval( ms ); | |
3528 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
3529 result = OS_TIMEOUT; | |
3530 } else { | |
3531 ResetEvent(osthread->interrupt_event()); | |
3532 osthread->set_interrupted(false); | |
3533 result = OS_INTRPT; | |
3534 } | |
3535 delete phri; //if it is NULL, harmless | |
3536 | |
3537 // were we externally suspended while we were waiting? | |
3538 jt->check_and_wait_while_suspended(); | |
3539 } else { | |
3540 assert(!thread->is_Java_thread(), "must not be java thread"); | |
3541 Sleep((long) ms); | |
3542 result = OS_TIMEOUT; | |
3543 } | |
3544 return result; | |
3545 } | |
3546 | |
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3547 // |
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3548 // Short sleep, direct OS call. |
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3549 // |
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3550 // ms = 0, means allow others (if any) to run. |
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3551 // |
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3552 void os::naked_short_sleep(jlong ms) { |
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3553 assert(ms < 1000, "Un-interruptable sleep, short time use only"); |
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3554 Sleep(ms); |
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3555 } |
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3556 |
0 | 3557 // Sleep forever; naked call to OS-specific sleep; use with CAUTION |
3558 void os::infinite_sleep() { | |
3559 while (true) { // sleep forever ... | |
3560 Sleep(100000); // ... 100 seconds at a time | |
3561 } | |
3562 } | |
3563 | |
3564 typedef BOOL (WINAPI * STTSignature)(void) ; | |
3565 | |
3566 os::YieldResult os::NakedYield() { | |
3567 // Use either SwitchToThread() or Sleep(0) | |
3568 // Consider passing back the return value from SwitchToThread(). | |
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3569 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
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3570 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
0 | 3571 } else { |
3833
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3572 Sleep(0); |
0 | 3573 } |
3574 return os::YIELD_UNKNOWN ; | |
3575 } | |
3576 | |
3577 void os::yield() { os::NakedYield(); } | |
3578 | |
3579 void os::yield_all(int attempts) { | |
3580 // Yields to all threads, including threads with lower priorities | |
3581 Sleep(1); | |
3582 } | |
3583 | |
3584 // Win32 only gives you access to seven real priorities at a time, | |
3585 // so we compress Java's ten down to seven. It would be better | |
3586 // if we dynamically adjusted relative priorities. | |
3587 | |
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3588 int os::java_to_os_priority[CriticalPriority + 1] = { |
0 | 3589 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
3590 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
3591 THREAD_PRIORITY_LOWEST, // 2 | |
3592 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
3593 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
3594 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
3595 THREAD_PRIORITY_NORMAL, // 6 | |
3596 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
3597 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
3598 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
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3599 THREAD_PRIORITY_HIGHEST, // 10 MaxPriority |
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3600 THREAD_PRIORITY_HIGHEST // 11 CriticalPriority |
0 | 3601 }; |
3602 | |
4854
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3603 int prio_policy1[CriticalPriority + 1] = { |
0 | 3604 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
3605 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
3606 THREAD_PRIORITY_LOWEST, // 2 | |
3607 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
3608 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
3609 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
3610 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
3611 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
3612 THREAD_PRIORITY_HIGHEST, // 8 | |
3613 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
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3614 THREAD_PRIORITY_TIME_CRITICAL, // 10 MaxPriority |
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3615 THREAD_PRIORITY_TIME_CRITICAL // 11 CriticalPriority |
0 | 3616 }; |
3617 | |
3618 static int prio_init() { | |
3619 // If ThreadPriorityPolicy is 1, switch tables | |
3620 if (ThreadPriorityPolicy == 1) { | |
3621 int i; | |
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3622 for (i = 0; i < CriticalPriority + 1; i++) { |
0 | 3623 os::java_to_os_priority[i] = prio_policy1[i]; |
3624 } | |
3625 } | |
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3626 if (UseCriticalJavaThreadPriority) { |
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3627 os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority] ; |
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3628 } |
0 | 3629 return 0; |
3630 } | |
3631 | |
3632 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
3633 if (!UseThreadPriorities) return OS_OK; | |
3634 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
3635 return ret ? OS_OK : OS_ERR; | |
3636 } | |
3637 | |
3638 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
3639 if ( !UseThreadPriorities ) { | |
3640 *priority_ptr = java_to_os_priority[NormPriority]; | |
3641 return OS_OK; | |
3642 } | |
3643 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
3644 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
3645 assert(false, "GetThreadPriority failed"); | |
3646 return OS_ERR; | |
3647 } | |
3648 *priority_ptr = os_prio; | |
3649 return OS_OK; | |
3650 } | |
3651 | |
3652 | |
3653 // Hint to the underlying OS that a task switch would not be good. | |
3654 // Void return because it's a hint and can fail. | |
3655 void os::hint_no_preempt() {} | |
3656 | |
3657 void os::interrupt(Thread* thread) { | |
3658 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
3659 "possibility of dangling Thread pointer"); | |
3660 | |
3661 OSThread* osthread = thread->osthread(); | |
3662 osthread->set_interrupted(true); | |
3663 // More than one thread can get here with the same value of osthread, | |
3664 // resulting in multiple notifications. We do, however, want the store | |
3665 // to interrupted() to be visible to other threads before we post | |
3666 // the interrupt event. | |
3667 OrderAccess::release(); | |
3668 SetEvent(osthread->interrupt_event()); | |
3669 // For JSR166: unpark after setting status | |
3670 if (thread->is_Java_thread()) | |
3671 ((JavaThread*)thread)->parker()->unpark(); | |
3672 | |
3673 ParkEvent * ev = thread->_ParkEvent ; | |
3674 if (ev != NULL) ev->unpark() ; | |
3675 | |
3676 } | |
3677 | |
3678 | |
3679 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
3680 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
3681 "possibility of dangling Thread pointer"); | |
3682 | |
3683 OSThread* osthread = thread->osthread(); | |
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3684 // There is no synchronization between the setting of the interrupt |
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3685 // and it being cleared here. It is critical - see 6535709 - that |
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3686 // we only clear the interrupt state, and reset the interrupt event, |
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3687 // if we are going to report that we were indeed interrupted - else |
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3688 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
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3689 // depending on the timing. By checking thread interrupt event to see |
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3690 // if the thread gets real interrupt thus prevent spurious wakeup. |
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3691 bool interrupted = osthread->interrupted() && (WaitForSingleObject(osthread->interrupt_event(), 0) == WAIT_OBJECT_0); |
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3692 if (interrupted && clear_interrupted) { |
0 | 3693 osthread->set_interrupted(false); |
3694 ResetEvent(osthread->interrupt_event()); | |
3695 } // Otherwise leave the interrupted state alone | |
3696 | |
3697 return interrupted; | |
3698 } | |
3699 | |
3700 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
3701 ExtendedPC os::get_thread_pc(Thread* thread) { | |
3702 CONTEXT context; | |
3703 context.ContextFlags = CONTEXT_CONTROL; | |
3704 HANDLE handle = thread->osthread()->thread_handle(); | |
3705 #ifdef _M_IA64 | |
3706 assert(0, "Fix get_thread_pc"); | |
3707 return ExtendedPC(NULL); | |
3708 #else | |
3709 if (GetThreadContext(handle, &context)) { | |
3710 #ifdef _M_AMD64 | |
3711 return ExtendedPC((address) context.Rip); | |
3712 #else | |
3713 return ExtendedPC((address) context.Eip); | |
3714 #endif | |
3715 } else { | |
3716 return ExtendedPC(NULL); | |
3717 } | |
3718 #endif | |
3719 } | |
3720 | |
3721 // GetCurrentThreadId() returns DWORD | |
3722 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
3723 | |
3724 static int _initial_pid = 0; | |
3725 | |
3726 int os::current_process_id() | |
3727 { | |
3728 return (_initial_pid ? _initial_pid : _getpid()); | |
3729 } | |
3730 | |
3731 int os::win32::_vm_page_size = 0; | |
3732 int os::win32::_vm_allocation_granularity = 0; | |
3733 int os::win32::_processor_type = 0; | |
3734 // Processor level is not available on non-NT systems, use vm_version instead | |
3735 int os::win32::_processor_level = 0; | |
3736 julong os::win32::_physical_memory = 0; | |
3737 size_t os::win32::_default_stack_size = 0; | |
3738 | |
3739 intx os::win32::_os_thread_limit = 0; | |
3740 volatile intx os::win32::_os_thread_count = 0; | |
3741 | |
3742 bool os::win32::_is_nt = false; | |
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3743 bool os::win32::_is_windows_2003 = false; |
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3744 bool os::win32::_is_windows_server = false; |
0 | 3745 |
3746 void os::win32::initialize_system_info() { | |
3747 SYSTEM_INFO si; | |
3748 GetSystemInfo(&si); | |
3749 _vm_page_size = si.dwPageSize; | |
3750 _vm_allocation_granularity = si.dwAllocationGranularity; | |
3751 _processor_type = si.dwProcessorType; | |
3752 _processor_level = si.wProcessorLevel; | |
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3753 set_processor_count(si.dwNumberOfProcessors); |
0 | 3754 |
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3755 MEMORYSTATUSEX ms; |
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3756 ms.dwLength = sizeof(ms); |
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3757 |
0 | 3758 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
3759 // dwMemoryLoad (% of memory in use) | |
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|
3760 GlobalMemoryStatusEx(&ms); |
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3761 _physical_memory = ms.ullTotalPhys; |
0 | 3762 |
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|
3763 OSVERSIONINFOEX oi; |
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|
3764 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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3765 GetVersionEx((OSVERSIONINFO*)&oi); |
0 | 3766 switch(oi.dwPlatformId) { |
3767 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
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3768 case VER_PLATFORM_WIN32_NT: |
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3769 _is_nt = true; |
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3770 { |
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3771 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
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3772 if (os_vers == 5002) { |
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3773 _is_windows_2003 = true; |
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3774 } |
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3775 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
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3776 oi.wProductType == VER_NT_SERVER) { |
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3777 _is_windows_server = true; |
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3778 } |
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3779 } |
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3780 break; |
0 | 3781 default: fatal("Unknown platform"); |
3782 } | |
3783 | |
3784 _default_stack_size = os::current_stack_size(); | |
3785 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
3786 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
3787 "stack size not a multiple of page size"); | |
3788 | |
3789 initialize_performance_counter(); | |
3790 | |
3791 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
3792 // known to deadlock the system, if the VM issues to thread operations with | |
3793 // a too high frequency, e.g., such as changing the priorities. | |
3794 // The 6000 seems to work well - no deadlocks has been notices on the test | |
3795 // programs that we have seen experience this problem. | |
3796 if (!os::win32::is_nt()) { | |
3797 StarvationMonitorInterval = 6000; | |
3798 } | |
3799 } | |
3800 | |
3801 | |
3833
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3802 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
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|
3803 char path[MAX_PATH]; |
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3804 DWORD size; |
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3805 DWORD pathLen = (DWORD)sizeof(path); |
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|
3806 HINSTANCE result = NULL; |
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|
3807 |
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|
3808 // only allow library name without path component |
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|
3809 assert(strchr(name, '\\') == NULL, "path not allowed"); |
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|
3810 assert(strchr(name, ':') == NULL, "path not allowed"); |
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|
3811 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
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|
3812 jio_snprintf(ebuf, ebuflen, |
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|
3813 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
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|
3814 return NULL; |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
3815 } |
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|
3816 |
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|
3817 // search system directory |
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|
3818 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
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|
3819 strcat(path, "\\"); |
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3820 strcat(path, name); |
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|
3821 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
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|
3822 return result; |
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|
3823 } |
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|
3824 } |
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|
3825 |
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|
3826 // try Windows directory |
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|
3827 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
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|
3828 strcat(path, "\\"); |
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|
3829 strcat(path, name); |
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
3830 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
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|
3831 return result; |
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|
3832 } |
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|
3833 } |
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|
3834 |
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|
3835 jio_snprintf(ebuf, ebuflen, |
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|
3836 "os::win32::load_windows_dll() cannot load %s from system directories.", name); |
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|
3837 return NULL; |
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|
3838 } |
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|
3839 |
0 | 3840 void os::win32::setmode_streams() { |
3841 _setmode(_fileno(stdin), _O_BINARY); | |
3842 _setmode(_fileno(stdout), _O_BINARY); | |
3843 _setmode(_fileno(stderr), _O_BINARY); | |
3844 } | |
3845 | |
3846 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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diff
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|
3847 bool os::is_debugger_attached() { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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diff
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|
3848 return IsDebuggerPresent() ? true : false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
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diff
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|
3849 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
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|
3850 |
da091bb67459
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|
3851 |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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changeset
|
3852 void os::wait_for_keypress_at_exit(void) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3853 if (PauseAtExit) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3854 fprintf(stderr, "Press any key to continue...\n"); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3855 fgetc(stdin); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3856 } |
da091bb67459
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sla
parents:
2205
diff
changeset
|
3857 } |
da091bb67459
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sla
parents:
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diff
changeset
|
3858 |
da091bb67459
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diff
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|
3859 |
0 | 3860 int os::message_box(const char* title, const char* message) { |
3861 int result = MessageBox(NULL, message, title, | |
3862 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
3863 return result == IDYES; | |
3864 } | |
3865 | |
3866 int os::allocate_thread_local_storage() { | |
3867 return TlsAlloc(); | |
3868 } | |
3869 | |
3870 | |
3871 void os::free_thread_local_storage(int index) { | |
3872 TlsFree(index); | |
3873 } | |
3874 | |
3875 | |
3876 void os::thread_local_storage_at_put(int index, void* value) { | |
3877 TlsSetValue(index, value); | |
3878 assert(thread_local_storage_at(index) == value, "Just checking"); | |
3879 } | |
3880 | |
3881 | |
3882 void* os::thread_local_storage_at(int index) { | |
3883 return TlsGetValue(index); | |
3884 } | |
3885 | |
3886 | |
3887 #ifndef PRODUCT | |
3888 #ifndef _WIN64 | |
3889 // Helpers to check whether NX protection is enabled | |
3890 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
3891 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
3892 pex->ExceptionRecord->NumberParameters > 0 && | |
3893 pex->ExceptionRecord->ExceptionInformation[0] == | |
3894 EXCEPTION_INFO_EXEC_VIOLATION) { | |
3895 return EXCEPTION_EXECUTE_HANDLER; | |
3896 } | |
3897 return EXCEPTION_CONTINUE_SEARCH; | |
3898 } | |
3899 | |
3900 void nx_check_protection() { | |
3901 // If NX is enabled we'll get an exception calling into code on the stack | |
3902 char code[] = { (char)0xC3 }; // ret | |
3903 void *code_ptr = (void *)code; | |
3904 __try { | |
3905 __asm call code_ptr | |
3906 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
3907 tty->print_raw_cr("NX protection detected."); | |
3908 } | |
3909 } | |
3910 #endif // _WIN64 | |
3911 #endif // PRODUCT | |
3912 | |
3913 // this is called _before_ the global arguments have been parsed | |
3914 void os::init(void) { | |
3915 _initial_pid = _getpid(); | |
3916 | |
3917 init_random(1234567); | |
3918 | |
3919 win32::initialize_system_info(); | |
3920 win32::setmode_streams(); | |
3921 init_page_sizes((size_t) win32::vm_page_size()); | |
3922 | |
3923 // For better scalability on MP systems (must be called after initialize_system_info) | |
3924 #ifndef PRODUCT | |
3925 if (is_MP()) { | |
3926 NoYieldsInMicrolock = true; | |
3927 } | |
3928 #endif | |
389
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3929 // This may be overridden later when argument processing is done. |
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3930 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
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3931 os::win32::is_windows_2003()); |
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3932 |
0 | 3933 // Initialize main_process and main_thread |
3934 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
389
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3935 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
0 | 3936 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
3937 fatal("DuplicateHandle failed\n"); | |
3938 } | |
3939 main_thread_id = (int) GetCurrentThreadId(); | |
3940 } | |
3941 | |
3942 // To install functions for atexit processing | |
3943 extern "C" { | |
3944 static void perfMemory_exit_helper() { | |
3945 perfMemory_exit(); | |
3946 } | |
3947 } | |
3948 | |
8872 | 3949 static jint initSock(); |
3950 | |
0 | 3951 // this is called _after_ the global arguments have been parsed |
3952 jint os::init_2(void) { | |
3953 // Allocate a single page and mark it as readable for safepoint polling | |
3954 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
3955 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
3956 | |
3957 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
3958 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
3959 | |
3960 os::set_polling_page( polling_page ); | |
3961 | |
3962 #ifndef PRODUCT | |
3963 if( Verbose && PrintMiscellaneous ) | |
3964 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
3965 #endif | |
3966 | |
3967 if (!UseMembar) { | |
656 | 3968 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
0 | 3969 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
3970 | |
656 | 3971 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
0 | 3972 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
3973 | |
3974 os::set_memory_serialize_page( mem_serialize_page ); | |
3975 | |
3976 #ifndef PRODUCT | |
3977 if(Verbose && PrintMiscellaneous) | |
3978 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
3979 #endif | |
3885 | 3980 } |
0 | 3981 |
3982 // Setup Windows Exceptions | |
3983 | |
3984 // for debugging float code generation bugs | |
3985 if (ForceFloatExceptions) { | |
3986 #ifndef _WIN64 | |
3987 static long fp_control_word = 0; | |
3988 __asm { fstcw fp_control_word } | |
3989 // see Intel PPro Manual, Vol. 2, p 7-16 | |
3990 const long precision = 0x20; | |
3991 const long underflow = 0x10; | |
3992 const long overflow = 0x08; | |
3993 const long zero_div = 0x04; | |
3994 const long denorm = 0x02; | |
3995 const long invalid = 0x01; | |
3996 fp_control_word |= invalid; | |
3997 __asm { fldcw fp_control_word } | |
3998 #endif | |
3999 } | |
4000 | |
4001 // If stack_commit_size is 0, windows will reserve the default size, | |
4002 // but only commit a small portion of it. | |
4003 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
4004 size_t default_reserve_size = os::win32::default_stack_size(); | |
4005 size_t actual_reserve_size = stack_commit_size; | |
4006 if (stack_commit_size < default_reserve_size) { | |
4007 // If stack_commit_size == 0, we want this too | |
4008 actual_reserve_size = default_reserve_size; | |
4009 } | |
4010 | |
1867
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4011 // Check minimum allowable stack size for thread creation and to initialize |
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|
4012 // the java system classes, including StackOverflowError - depends on page |
b6aedd1acdc0
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diff
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|
4013 // size. Add a page for compiler2 recursion in main thread. |
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|
4014 // Add in 2*BytesPerWord times page size to account for VM stack during |
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|
4015 // class initialization depending on 32 or 64 bit VM. |
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6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
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|
4016 size_t min_stack_allowed = |
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|
4017 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
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|
4018 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
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|
4019 if (actual_reserve_size < min_stack_allowed) { |
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|
4020 tty->print_cr("\nThe stack size specified is too small, " |
b6aedd1acdc0
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coleenp
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|
4021 "Specify at least %dk", |
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|
4022 min_stack_allowed / K); |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
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|
4023 return JNI_ERR; |
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|
4024 } |
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|
4025 |
0 | 4026 JavaThread::set_stack_size_at_create(stack_commit_size); |
4027 | |
4028 // Calculate theoretical max. size of Threads to guard gainst artifical | |
4029 // out-of-memory situations, where all available address-space has been | |
4030 // reserved by thread stacks. | |
4031 assert(actual_reserve_size != 0, "Must have a stack"); | |
4032 | |
4033 // Calculate the thread limit when we should start doing Virtual Memory | |
4034 // banging. Currently when the threads will have used all but 200Mb of space. | |
4035 // | |
4036 // TODO: consider performing a similar calculation for commit size instead | |
4037 // as reserve size, since on a 64-bit platform we'll run into that more | |
4038 // often than running out of virtual memory space. We can use the | |
4039 // lower value of the two calculations as the os_thread_limit. | |
113
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|
4040 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
0 | 4041 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
4042 | |
4043 // at exit methods are called in the reverse order of their registration. | |
4044 // there is no limit to the number of functions registered. atexit does | |
4045 // not set errno. | |
4046 | |
4047 if (PerfAllowAtExitRegistration) { | |
4048 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
4049 // atexit functions can be delayed until process exit time, which | |
4050 // can be problematic for embedded VM situations. Embedded VMs should | |
4051 // call DestroyJavaVM() to assure that VM resources are released. | |
4052 | |
4053 // note: perfMemory_exit_helper atexit function may be removed in | |
4054 // the future if the appropriate cleanup code can be added to the | |
4055 // VM_Exit VMOperation's doit method. | |
4056 if (atexit(perfMemory_exit_helper) != 0) { | |
4057 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
4058 } | |
4059 } | |
4060 | |
4061 #ifndef _WIN64 | |
4062 // Print something if NX is enabled (win32 on AMD64) | |
4063 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
4064 #endif | |
4065 | |
4066 // initialize thread priority policy | |
4067 prio_init(); | |
4068 | |
3918
a6128a8ed624
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3885
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|
4069 if (UseNUMA && !ForceNUMA) { |
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4070 UseNUMA = false; // We don't fully support this yet |
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|
4071 } |
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|
4072 |
3885 | 4073 if (UseNUMAInterleaving) { |
4074 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
4075 bool success = numa_interleaving_init(); | |
4076 if (!success) UseNUMAInterleaving = false; | |
462
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4077 } |
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4078 |
8872 | 4079 if (initSock() != JNI_OK) { |
4080 return JNI_ERR; | |
4081 } | |
4082 | |
0 | 4083 return JNI_OK; |
4084 } | |
4085 | |
4086 // Mark the polling page as unreadable | |
4087 void os::make_polling_page_unreadable(void) { | |
4088 DWORD old_status; | |
4089 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
4090 fatal("Could not disable polling page"); | |
4091 }; | |
4092 | |
4093 // Mark the polling page as readable | |
4094 void os::make_polling_page_readable(void) { | |
4095 DWORD old_status; | |
4096 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
4097 fatal("Could not enable polling page"); | |
4098 }; | |
4099 | |
4100 | |
4101 int os::stat(const char *path, struct stat *sbuf) { | |
4102 char pathbuf[MAX_PATH]; | |
4103 if (strlen(path) > MAX_PATH - 1) { | |
4104 errno = ENAMETOOLONG; | |
4105 return -1; | |
4106 } | |
1980
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4107 os::native_path(strcpy(pathbuf, path)); |
0 | 4108 int ret = ::stat(pathbuf, sbuf); |
4109 if (sbuf != NULL && UseUTCFileTimestamp) { | |
4110 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
4111 // the system timezone and so can return different values for the | |
4112 // same file if/when daylight savings time changes. This adjustment | |
4113 // makes sure the same timestamp is returned regardless of the TZ. | |
4114 // | |
4115 // See: | |
4116 // http://msdn.microsoft.com/library/ | |
4117 // default.asp?url=/library/en-us/sysinfo/base/ | |
4118 // time_zone_information_str.asp | |
4119 // and | |
4120 // http://msdn.microsoft.com/library/default.asp?url= | |
4121 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
4122 // | |
4123 // NOTE: there is a insidious bug here: If the timezone is changed | |
4124 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
4125 // the adjustment we do here will be wrong and we'll return the wrong | |
4126 // value (which will likely end up creating an invalid class data | |
4127 // archive). Absent a better API for this, or some time zone locking | |
4128 // mechanism, we'll have to live with this risk. | |
4129 TIME_ZONE_INFORMATION tz; | |
4130 DWORD tzid = GetTimeZoneInformation(&tz); | |
4131 int daylightBias = | |
4132 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
4133 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
4134 } | |
4135 return ret; | |
4136 } | |
4137 | |
4138 | |
4139 #define FT2INT64(ft) \ | |
4140 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
4141 | |
4142 | |
4143 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
4144 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
4145 // of a thread. | |
4146 // | |
4147 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
4148 // the fast estimate available on the platform. | |
4149 | |
4150 // current_thread_cpu_time() is not optimized for Windows yet | |
4151 jlong os::current_thread_cpu_time() { | |
4152 // return user + sys since the cost is the same | |
4153 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
4154 } | |
4155 | |
4156 jlong os::thread_cpu_time(Thread* thread) { | |
4157 // consistent with what current_thread_cpu_time() returns. | |
4158 return os::thread_cpu_time(thread, true /* user+sys */); | |
4159 } | |
4160 | |
4161 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
4162 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
4163 } | |
4164 | |
4165 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
4166 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
4167 // If this function changes, os::is_thread_cpu_time_supported() should too | |
4168 if (os::win32::is_nt()) { | |
4169 FILETIME CreationTime; | |
4170 FILETIME ExitTime; | |
4171 FILETIME KernelTime; | |
4172 FILETIME UserTime; | |
4173 | |
4174 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
4175 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
4176 return -1; | |
4177 else | |
4178 if (user_sys_cpu_time) { | |
4179 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
4180 } else { | |
4181 return FT2INT64(UserTime) * 100; | |
4182 } | |
4183 } else { | |
4184 return (jlong) timeGetTime() * 1000000; | |
4185 } | |
4186 } | |
4187 | |
4188 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
4189 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
4190 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
4191 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
4192 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
4193 } | |
4194 | |
4195 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
4196 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
4197 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
4198 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
4199 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
4200 } | |
4201 | |
4202 bool os::is_thread_cpu_time_supported() { | |
4203 // see os::thread_cpu_time | |
4204 if (os::win32::is_nt()) { | |
4205 FILETIME CreationTime; | |
4206 FILETIME ExitTime; | |
4207 FILETIME KernelTime; | |
4208 FILETIME UserTime; | |
4209 | |
4210 if ( GetThreadTimes(GetCurrentThread(), | |
4211 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
4212 return false; | |
4213 else | |
4214 return true; | |
4215 } else { | |
4216 return false; | |
4217 } | |
4218 } | |
4219 | |
4220 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
4221 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
4222 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
4223 // If we wanted to implement loadavg on Windows, we have a few options: | |
4224 // | |
4225 // a) Query CPU usage and run queue length and "fake" an answer by | |
4226 // returning the CPU usage if it's under 100%, and the run queue | |
4227 // length otherwise. It turns out that querying is pretty slow | |
4228 // on Windows, on the order of 200 microseconds on a fast machine. | |
4229 // Note that on the Windows the CPU usage value is the % usage | |
4230 // since the last time the API was called (and the first call | |
4231 // returns 100%), so we'd have to deal with that as well. | |
4232 // | |
4233 // b) Sample the "fake" answer using a sampling thread and store | |
4234 // the answer in a global variable. The call to loadavg would | |
4235 // just return the value of the global, avoiding the slow query. | |
4236 // | |
4237 // c) Sample a better answer using exponential decay to smooth the | |
4238 // value. This is basically the algorithm used by UNIX kernels. | |
4239 // | |
4240 // Note that sampling thread starvation could affect both (b) and (c). | |
4241 int os::loadavg(double loadavg[], int nelem) { | |
4242 return -1; | |
4243 } | |
4244 | |
4245 | |
4246 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
4247 bool os::dont_yield() { | |
4248 return DontYieldALot; | |
4249 } | |
4250 | |
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4251 // This method is a slightly reworked copy of JDK's sysOpen |
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diff
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4252 // from src/windows/hpi/src/sys_api_md.c |
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|
4253 |
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|
4254 int os::open(const char *path, int oflag, int mode) { |
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1972
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|
4255 char pathbuf[MAX_PATH]; |
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|
4256 |
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|
4257 if (strlen(path) > MAX_PATH - 1) { |
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|
4258 errno = ENAMETOOLONG; |
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diff
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|
4259 return -1; |
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6348631: remove the use of the HPI library from Hotspot
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diff
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|
4260 } |
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6348631: remove the use of the HPI library from Hotspot
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diff
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|
4261 os::native_path(strcpy(pathbuf, path)); |
828eafbd85cc
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ikrylov
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diff
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|
4262 return ::open(pathbuf, oflag | O_BINARY | O_NOINHERIT, mode); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4263 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4264 |
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4265 FILE* os::open(int fd, const char* mode) { |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
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9152
diff
changeset
|
4266 return ::_fdopen(fd, mode); |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4267 } |
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
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9152
diff
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|
4268 |
0 | 4269 // Is a (classpath) directory empty? |
4270 bool os::dir_is_empty(const char* path) { | |
4271 WIN32_FIND_DATA fd; | |
4272 HANDLE f = FindFirstFile(path, &fd); | |
4273 if (f == INVALID_HANDLE_VALUE) { | |
4274 return true; | |
4275 } | |
4276 FindClose(f); | |
4277 return false; | |
4278 } | |
4279 | |
4280 // create binary file, rewriting existing file if required | |
4281 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
4282 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
4283 if (!rewrite_existing) { | |
4284 oflags |= _O_EXCL; | |
4285 } | |
4286 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
4287 } | |
4288 | |
4289 // return current position of file pointer | |
4290 jlong os::current_file_offset(int fd) { | |
4291 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
4292 } | |
4293 | |
4294 // move file pointer to the specified offset | |
4295 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
4296 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
4297 } | |
4298 | |
4299 | |
1980
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6348631: remove the use of the HPI library from Hotspot
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1972
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|
4300 jlong os::lseek(int fd, jlong offset, int whence) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4301 return (jlong) ::_lseeki64(fd, offset, whence); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4302 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4303 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4304 // This method is a slightly reworked copy of JDK's sysNativePath |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4305 // from src/windows/hpi/src/path_md.c |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4306 |
828eafbd85cc
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ikrylov
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diff
changeset
|
4307 /* Convert a pathname to native format. On win32, this involves forcing all |
828eafbd85cc
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ikrylov
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diff
changeset
|
4308 separators to be '\\' rather than '/' (both are legal inputs, but Win95 |
828eafbd85cc
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ikrylov
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diff
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|
4309 sometimes rejects '/') and removing redundant separators. The input path is |
828eafbd85cc
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ikrylov
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diff
changeset
|
4310 assumed to have been converted into the character encoding used by the local |
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
4311 system. Because this might be a double-byte encoding, care is taken to |
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
4312 treat double-byte lead characters correctly. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4313 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
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|
4314 This procedure modifies the given path in place, as the result is never |
828eafbd85cc
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diff
changeset
|
4315 longer than the original. There is no error return; this operation always |
828eafbd85cc
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ikrylov
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diff
changeset
|
4316 succeeds. */ |
828eafbd85cc
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ikrylov
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diff
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|
4317 char * os::native_path(char *path) { |
828eafbd85cc
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ikrylov
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diff
changeset
|
4318 char *src = path, *dst = path, *end = path; |
828eafbd85cc
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diff
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|
4319 char *colon = NULL; /* If a drive specifier is found, this will |
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ikrylov
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diff
changeset
|
4320 point to the colon following the drive |
828eafbd85cc
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1972
diff
changeset
|
4321 letter */ |
828eafbd85cc
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ikrylov
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diff
changeset
|
4322 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4323 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
828eafbd85cc
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diff
changeset
|
4324 assert(((!::IsDBCSLeadByte('/')) |
828eafbd85cc
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changeset
|
4325 && (!::IsDBCSLeadByte('\\')) |
828eafbd85cc
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diff
changeset
|
4326 && (!::IsDBCSLeadByte(':'))), |
828eafbd85cc
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changeset
|
4327 "Illegal lead byte"); |
828eafbd85cc
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ikrylov
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diff
changeset
|
4328 |
828eafbd85cc
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diff
changeset
|
4329 /* Check for leading separators */ |
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
4330 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
828eafbd85cc
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ikrylov
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diff
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|
4331 while (isfilesep(*src)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4332 src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4333 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4334 |
828eafbd85cc
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diff
changeset
|
4335 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
changeset
|
4336 /* Remove leading separators if followed by drive specifier. This |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4337 hack is necessary to support file URLs containing drive |
828eafbd85cc
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ikrylov
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diff
changeset
|
4338 specifiers (e.g., "file://c:/path"). As a side effect, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4339 "/c:/path" can be used as an alternative to "c:/path". */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4340 *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4341 colon = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4342 *dst++ = ':'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4343 src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4344 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4345 src = path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4346 if (isfilesep(src[0]) && isfilesep(src[1])) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
changeset
|
4347 /* UNC pathname: Retain first separator; leave src pointed at |
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ikrylov
parents:
1972
diff
changeset
|
4348 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
|
4349 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
|
4350 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
|
4351 src = dst = path + 1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4352 path[0] = '\\'; /* Force first separator to '\\' */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4353 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4354 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4355 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4356 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4357 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4358 /* 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
|
4359 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
|
4360 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
|
4361 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
|
4362 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4363 while (*src != '\0') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4364 if (isfilesep(*src)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4365 *dst++ = '\\'; src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4366 while (isfilesep(*src)) src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4367 if (*src == '\0') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4368 /* Check for trailing separator */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4369 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4370 if (colon == dst - 2) break; /* "z:\\" */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4371 if (dst == path + 1) break; /* "\\" */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4372 if (dst == path + 2 && isfilesep(path[0])) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4373 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4374 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
|
4375 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
|
4376 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
|
4377 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
|
4378 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
|
4379 directory of the current drive. */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4380 break; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4381 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4382 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
|
4383 remove trailing separator */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4384 break; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4385 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4386 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4387 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4388 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4389 *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4390 if (*src) *dst++ = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4391 end = dst; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4392 } else { /* Copy a single-byte character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4393 char c = *src++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4394 *dst++ = c; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4395 /* Space is not a legal ending character */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4396 if (c != ' ') end = dst; |
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 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4399 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4400 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4401 *end = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4402 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4403 /* 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
|
4404 if (colon == dst - 1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4405 path[2] = '.'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4406 path[3] = '\0'; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4407 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4408 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4409 return path; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4410 } |
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 // 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
|
4413 // 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
|
4414 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4415 int os::ftruncate(int fd, jlong length) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4416 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4417 long high = (long)(length >> 32); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4418 DWORD ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4419 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4420 if (h == (HANDLE)(-1)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4421 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4422 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4423 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4424 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4425 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4426 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4427 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4428 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4429 if (::SetEndOfFile(h) == FALSE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4430 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4431 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4432 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4433 return 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4434 } |
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 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4437 // 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
|
4438 // 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
|
4439 // 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
|
4440 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4441 int os::fsync(int fd) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4442 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4443 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4444 if ( (!::FlushFileBuffers(handle)) && |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4445 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4446 /* from winerror.h */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4447 return -1; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4448 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4449 return 0; |
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 static int nonSeekAvailable(int, long *); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4453 static int stdinAvailable(int, long *); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4454 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4455 #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
|
4456 #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
|
4457 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4458 // 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
|
4459 // 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
|
4460 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4461 int os::available(int fd, jlong *bytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4462 jlong cur, end; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4463 struct _stati64 stbuf64; |
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 (::_fstati64(fd, &stbuf64) >= 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4466 int mode = stbuf64.st_mode; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4467 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4468 int ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4469 long lpbytes; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4470 if (fd == 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4471 ret = stdinAvailable(fd, &lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4472 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4473 ret = nonSeekAvailable(fd, &lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4474 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4475 (*bytes) = (jlong)(lpbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4476 return ret; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4477 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4478 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4479 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4480 } 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
|
4481 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4482 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4483 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4484 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4485 *bytes = end - cur; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4486 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4487 } else { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4488 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4489 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4490 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4491 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4492 // 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
|
4493 // 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
|
4494 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4495 static int nonSeekAvailable(int fd, long *pbytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4496 /* 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
|
4497 * (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
|
4498 * connected to an exec'd process). |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4499 * Standard Input is a special case. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4500 * |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4501 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4502 HANDLE han; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4503 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4504 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4505 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4506 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4507 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4508 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
|
4509 /* 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
|
4510 * 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
|
4511 * 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
|
4512 * The only alternative is to raise an Exception, |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4513 * which isn't really warranted. |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4514 */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4515 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4516 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4517 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4518 *pbytes = 0; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4519 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4520 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4521 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4522 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4523 #define MAX_INPUT_EVENTS 2000 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4524 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4525 // 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
|
4526 // 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
|
4527 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4528 static int stdinAvailable(int fd, long *pbytes) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4529 HANDLE han; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4530 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
|
4531 DWORD numEvents = 0; /* Number of events in buffer */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4532 DWORD i = 0; /* Loop index */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4533 DWORD curLength = 0; /* Position marker */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4534 DWORD actualLength = 0; /* Number of bytes readable */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4535 BOOL error = FALSE; /* Error holder */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4536 INPUT_RECORD *lpBuffer; /* Pointer to records of input events */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4537 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4538 if ((han = ::GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4539 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4540 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4541 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4542 /* Construct an array of input records in the console buffer */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4543 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4544 if (error == 0) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4545 return nonSeekAvailable(fd, pbytes); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4546 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4547 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4548 /* lpBuffer must fit into 64K or else PeekConsoleInput fails */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4549 if (numEvents > MAX_INPUT_EVENTS) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4550 numEvents = MAX_INPUT_EVENTS; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4551 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4552 |
6197 | 4553 lpBuffer = (INPUT_RECORD *)os::malloc(numEvents * sizeof(INPUT_RECORD), mtInternal); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4554 if (lpBuffer == NULL) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4555 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4556 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4557 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4558 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4559 if (error == 0) { |
6197 | 4560 os::free(lpBuffer, mtInternal); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4561 return FALSE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4562 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4563 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4564 /* Examine input records for the number of bytes available */ |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4565 for(i=0; i<numEvents; i++) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4566 if (lpBuffer[i].EventType == KEY_EVENT) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4567 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4568 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4569 &(lpBuffer[i].Event); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4570 if (keyRecord->bKeyDown == TRUE) { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4571 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4572 curLength++; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4573 if (*keyPressed == '\r') { |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4574 actualLength = curLength; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4575 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4576 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4577 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4578 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4579 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4580 if(lpBuffer != NULL) { |
6197 | 4581 os::free(lpBuffer, mtInternal); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4582 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4583 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4584 *pbytes = (long) actualLength; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4585 return TRUE; |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4586 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4587 |
0 | 4588 // Map a block of memory. |
6197 | 4589 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
0 | 4590 char *addr, size_t bytes, bool read_only, |
4591 bool allow_exec) { | |
4592 HANDLE hFile; | |
4593 char* base; | |
4594 | |
4595 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
4596 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
4597 if (hFile == NULL) { | |
4598 if (PrintMiscellaneous && Verbose) { | |
4599 DWORD err = GetLastError(); | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
4600 tty->print_cr("CreateFile() failed: GetLastError->%ld.", err); |
0 | 4601 } |
4602 return NULL; | |
4603 } | |
4604 | |
4605 if (allow_exec) { | |
4606 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
4607 // unless it comes from a PE image (which the shared archive is not.) | |
4608 // Even VirtualProtect refuses to give execute access to mapped memory | |
4609 // that was not previously executable. | |
4610 // | |
4611 // Instead, stick the executable region in anonymous memory. Yuck. | |
4612 // Penalty is that ~4 pages will not be shareable - in the future | |
4613 // we might consider DLLizing the shared archive with a proper PE | |
4614 // header so that mapping executable + sharing is possible. | |
4615 | |
4616 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
4617 PAGE_READWRITE); | |
4618 if (base == NULL) { | |
4619 if (PrintMiscellaneous && Verbose) { | |
4620 DWORD err = GetLastError(); | |
4621 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
4622 } | |
4623 CloseHandle(hFile); | |
4624 return NULL; | |
4625 } | |
4626 | |
4627 DWORD bytes_read; | |
4628 OVERLAPPED overlapped; | |
4629 overlapped.Offset = (DWORD)file_offset; | |
4630 overlapped.OffsetHigh = 0; | |
4631 overlapped.hEvent = NULL; | |
4632 // ReadFile guarantees that if the return value is true, the requested | |
4633 // number of bytes were read before returning. | |
4634 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
4635 if (!res) { | |
4636 if (PrintMiscellaneous && Verbose) { | |
4637 DWORD err = GetLastError(); | |
4638 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
4639 } | |
4640 release_memory(base, bytes); | |
4641 CloseHandle(hFile); | |
4642 return NULL; | |
4643 } | |
4644 } else { | |
4645 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
4646 NULL /*file_name*/); | |
4647 if (hMap == NULL) { | |
4648 if (PrintMiscellaneous && Verbose) { | |
4649 DWORD err = GetLastError(); | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
4650 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld.", err); |
0 | 4651 } |
4652 CloseHandle(hFile); | |
4653 return NULL; | |
4654 } | |
4655 | |
4656 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
4657 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
4658 (DWORD)bytes, addr); | |
4659 if (base == NULL) { | |
4660 if (PrintMiscellaneous && Verbose) { | |
4661 DWORD err = GetLastError(); | |
4662 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
4663 } | |
4664 CloseHandle(hMap); | |
4665 CloseHandle(hFile); | |
4666 return NULL; | |
4667 } | |
4668 | |
4669 if (CloseHandle(hMap) == 0) { | |
4670 if (PrintMiscellaneous && Verbose) { | |
4671 DWORD err = GetLastError(); | |
4672 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
4673 } | |
4674 CloseHandle(hFile); | |
4675 return base; | |
4676 } | |
4677 } | |
4678 | |
4679 if (allow_exec) { | |
4680 DWORD old_protect; | |
4681 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
4682 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
4683 | |
4684 if (!res) { | |
4685 if (PrintMiscellaneous && Verbose) { | |
4686 DWORD err = GetLastError(); | |
4687 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
4688 } | |
4689 // Don't consider this a hard error, on IA32 even if the | |
4690 // VirtualProtect fails, we should still be able to execute | |
4691 CloseHandle(hFile); | |
4692 return base; | |
4693 } | |
4694 } | |
4695 | |
4696 if (CloseHandle(hFile) == 0) { | |
4697 if (PrintMiscellaneous && Verbose) { | |
4698 DWORD err = GetLastError(); | |
4699 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
4700 } | |
4701 return base; | |
4702 } | |
4703 | |
4704 return base; | |
4705 } | |
4706 | |
4707 | |
4708 // Remap a block of memory. | |
6197 | 4709 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
0 | 4710 char *addr, size_t bytes, bool read_only, |
4711 bool allow_exec) { | |
4712 // This OS does not allow existing memory maps to be remapped so we | |
4713 // have to unmap the memory before we remap it. | |
4714 if (!os::unmap_memory(addr, bytes)) { | |
4715 return NULL; | |
4716 } | |
4717 | |
4718 // There is a very small theoretical window between the unmap_memory() | |
4719 // call above and the map_memory() call below where a thread in native | |
4720 // code may be able to access an address that is no longer mapped. | |
4721 | |
6197 | 4722 return os::map_memory(fd, file_name, file_offset, addr, bytes, |
4723 read_only, allow_exec); | |
0 | 4724 } |
4725 | |
4726 | |
4727 // Unmap a block of memory. | |
4728 // Returns true=success, otherwise false. | |
4729 | |
6197 | 4730 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
0 | 4731 BOOL result = UnmapViewOfFile(addr); |
4732 if (result == 0) { | |
4733 if (PrintMiscellaneous && Verbose) { | |
4734 DWORD err = GetLastError(); | |
4735 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
4736 } | |
4737 return false; | |
4738 } | |
4739 return true; | |
4740 } | |
4741 | |
4742 void os::pause() { | |
4743 char filename[MAX_PATH]; | |
4744 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
4745 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
4746 } else { | |
4747 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
4748 } | |
4749 | |
4750 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
4751 if (fd != -1) { | |
4752 struct stat buf; | |
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4753 ::close(fd); |
0 | 4754 while (::stat(filename, &buf) == 0) { |
4755 Sleep(100); | |
4756 } | |
4757 } else { | |
4758 jio_fprintf(stderr, | |
4759 "Could not open pause file '%s', continuing immediately.\n", filename); | |
4760 } | |
4761 } | |
4762 | |
11151 | 4763 os::WatcherThreadCrashProtection::WatcherThreadCrashProtection() { |
4764 assert(Thread::current()->is_Watcher_thread(), "Must be WatcherThread"); | |
4765 } | |
4766 | |
4767 /* | |
4768 * See the caveats for this class in os_windows.hpp | |
4769 * Protects the callback call so that raised OS EXCEPTIONS causes a jump back | |
4770 * into this method and returns false. If no OS EXCEPTION was raised, returns | |
4771 * true. | |
4772 * The callback is supposed to provide the method that should be protected. | |
4773 */ | |
4774 bool os::WatcherThreadCrashProtection::call(os::CrashProtectionCallback& cb) { | |
4775 assert(Thread::current()->is_Watcher_thread(), "Only for WatcherThread"); | |
4776 assert(!WatcherThread::watcher_thread()->has_crash_protection(), | |
4777 "crash_protection already set?"); | |
4778 | |
4779 bool success = true; | |
4780 __try { | |
4781 WatcherThread::watcher_thread()->set_crash_protection(this); | |
4782 cb.call(); | |
4783 } __except(EXCEPTION_EXECUTE_HANDLER) { | |
4784 // only for protection, nothing to do | |
4785 success = false; | |
4786 } | |
4787 WatcherThread::watcher_thread()->set_crash_protection(NULL); | |
4788 return success; | |
4789 } | |
4790 | |
0 | 4791 // An Event wraps a win32 "CreateEvent" kernel handle. |
4792 // | |
4793 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
4794 // | |
4795 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
4796 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
4797 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
4798 // In addition, an unpark() operation might fetch the handle field, but the | |
4799 // event could recycle between the fetch and the SetEvent() operation. | |
4800 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
4801 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
4802 // on an stale but recycled handle would be harmless, but in practice this might | |
4803 // confuse other non-Sun code, so it's not a viable approach. | |
4804 // | |
4805 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
4806 // with the Event. The event handle is never closed. This could be construed | |
4807 // as handle leakage, but only up to the maximum # of threads that have been extant | |
4808 // at any one time. This shouldn't be an issue, as windows platforms typically | |
4809 // permit a process to have hundreds of thousands of open handles. | |
4810 // | |
4811 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
4812 // and release unused handles. | |
4813 // | |
4814 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
4815 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
4816 // | |
4817 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
4818 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
4819 // | |
4820 // We use (2). | |
4821 // | |
4822 // TODO-FIXME: | |
4823 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
4824 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
4825 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
4826 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
4827 // into a single win32 CreateEvent() handle. | |
4828 // | |
4829 // _Event transitions in park() | |
4830 // -1 => -1 : illegal | |
4831 // 1 => 0 : pass - return immediately | |
4832 // 0 => -1 : block | |
4833 // | |
4834 // _Event serves as a restricted-range semaphore : | |
4835 // -1 : thread is blocked | |
4836 // 0 : neutral - thread is running or ready | |
4837 // 1 : signaled - thread is running or ready | |
4838 // | |
4839 // Another possible encoding of _Event would be | |
4840 // with explicit "PARKED" and "SIGNALED" bits. | |
4841 | |
4842 int os::PlatformEvent::park (jlong Millis) { | |
4843 guarantee (_ParkHandle != NULL , "Invariant") ; | |
4844 guarantee (Millis > 0 , "Invariant") ; | |
4845 int v ; | |
4846 | |
4847 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
4848 // the initial park() operation. | |
4849 | |
4850 for (;;) { | |
4851 v = _Event ; | |
4852 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
4853 } | |
4854 guarantee ((v == 0) || (v == 1), "invariant") ; | |
4855 if (v != 0) return OS_OK ; | |
4856 | |
4857 // Do this the hard way by blocking ... | |
4858 // TODO: consider a brief spin here, gated on the success of recent | |
4859 // spin attempts by this thread. | |
4860 // | |
4861 // We decompose long timeouts into series of shorter timed waits. | |
4862 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
4863 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
4864 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
4865 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
4866 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
4867 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
4868 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
4869 // for the already waited time. This policy does not admit any new outcomes. | |
4870 // In the future, however, we might want to track the accumulated wait time and | |
4871 // adjust Millis accordingly if we encounter a spurious wakeup. | |
4872 | |
4873 const int MAXTIMEOUT = 0x10000000 ; | |
4874 DWORD rv = WAIT_TIMEOUT ; | |
4875 while (_Event < 0 && Millis > 0) { | |
4876 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
4877 if (Millis > MAXTIMEOUT) { | |
4878 prd = MAXTIMEOUT ; | |
4879 } | |
4880 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
4881 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
4882 if (rv == WAIT_TIMEOUT) { | |
4883 Millis -= prd ; | |
4884 } | |
4885 } | |
4886 v = _Event ; | |
4887 _Event = 0 ; | |
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4888 // see comment at end of os::PlatformEvent::park() below: |
0 | 4889 OrderAccess::fence() ; |
4890 // If we encounter a nearly simultanous timeout expiry and unpark() | |
4891 // we return OS_OK indicating we awoke via unpark(). | |
4892 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
4893 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
4894 } | |
4895 | |
4896 void os::PlatformEvent::park () { | |
4897 guarantee (_ParkHandle != NULL, "Invariant") ; | |
4898 // Invariant: Only the thread associated with the Event/PlatformEvent | |
4899 // may call park(). | |
4900 int v ; | |
4901 for (;;) { | |
4902 v = _Event ; | |
4903 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
4904 } | |
4905 guarantee ((v == 0) || (v == 1), "invariant") ; | |
4906 if (v != 0) return ; | |
4907 | |
4908 // Do this the hard way by blocking ... | |
4909 // TODO: consider a brief spin here, gated on the success of recent | |
4910 // spin attempts by this thread. | |
4911 while (_Event < 0) { | |
4912 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
4913 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
4914 } | |
4915 | |
4916 // Usually we'll find _Event == 0 at this point, but as | |
4917 // an optional optimization we clear it, just in case can | |
4918 // multiple unpark() operations drove _Event up to 1. | |
4919 _Event = 0 ; | |
4920 OrderAccess::fence() ; | |
4921 guarantee (_Event >= 0, "invariant") ; | |
4922 } | |
4923 | |
4924 void os::PlatformEvent::unpark() { | |
4925 guarantee (_ParkHandle != NULL, "Invariant") ; | |
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4926 |
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4927 // Transitions for _Event: |
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|
4928 // 0 :=> 1 |
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|
4929 // 1 :=> 1 |
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4930 // -1 :=> either 0 or 1; must signal target thread |
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4931 // That is, we can safely transition _Event from -1 to either |
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4932 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
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|
4933 // unpark() calls. |
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|
4934 // See also: "Semaphores in Plan 9" by Mullender & Cox |
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|
4935 // |
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4936 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
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4937 // that it will take two back-to-back park() calls for the owning |
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4938 // thread to block. This has the benefit of forcing a spurious return |
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4939 // from the first park() call after an unpark() call which will help |
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4940 // shake out uses of park() and unpark() without condition variables. |
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|
4941 |
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4942 if (Atomic::xchg(1, &_Event) >= 0) return; |
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4943 |
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|
4944 ::SetEvent(_ParkHandle); |
0 | 4945 } |
4946 | |
4947 | |
4948 // JSR166 | |
4949 // ------------------------------------------------------- | |
4950 | |
4951 /* | |
4952 * The Windows implementation of Park is very straightforward: Basic | |
4953 * operations on Win32 Events turn out to have the right semantics to | |
4954 * use them directly. We opportunistically resuse the event inherited | |
4955 * from Monitor. | |
4956 */ | |
4957 | |
4958 | |
4959 void Parker::park(bool isAbsolute, jlong time) { | |
4960 guarantee (_ParkEvent != NULL, "invariant") ; | |
4961 // First, demultiplex/decode time arguments | |
4962 if (time < 0) { // don't wait | |
4963 return; | |
4964 } | |
1865
1c352af0135d
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|
4965 else if (time == 0 && !isAbsolute) { |
0 | 4966 time = INFINITE; |
4967 } | |
4968 else if (isAbsolute) { | |
4969 time -= os::javaTimeMillis(); // convert to relative time | |
4970 if (time <= 0) // already elapsed | |
4971 return; | |
4972 } | |
4973 else { // relative | |
4974 time /= 1000000; // Must coarsen from nanos to millis | |
4975 if (time == 0) // Wait for the minimal time unit if zero | |
4976 time = 1; | |
4977 } | |
4978 | |
4979 JavaThread* thread = (JavaThread*)(Thread::current()); | |
4980 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
4981 JavaThread *jt = (JavaThread *)thread; | |
4982 | |
4983 // Don't wait if interrupted or already triggered | |
4984 if (Thread::is_interrupted(thread, false) || | |
4985 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
4986 ResetEvent(_ParkEvent); | |
4987 return; | |
4988 } | |
4989 else { | |
4990 ThreadBlockInVM tbivm(jt); | |
4991 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
4992 jt->set_suspend_equivalent(); | |
4993 | |
4994 WaitForSingleObject(_ParkEvent, time); | |
4995 ResetEvent(_ParkEvent); | |
4996 | |
4997 // If externally suspended while waiting, re-suspend | |
4998 if (jt->handle_special_suspend_equivalent_condition()) { | |
4999 jt->java_suspend_self(); | |
5000 } | |
5001 } | |
5002 } | |
5003 | |
5004 void Parker::unpark() { | |
5005 guarantee (_ParkEvent != NULL, "invariant") ; | |
5006 SetEvent(_ParkEvent); | |
5007 } | |
5008 | |
5009 // Run the specified command in a separate process. Return its exit value, | |
5010 // or -1 on failure (e.g. can't create a new process). | |
5011 int os::fork_and_exec(char* cmd) { | |
5012 STARTUPINFO si; | |
5013 PROCESS_INFORMATION pi; | |
5014 | |
5015 memset(&si, 0, sizeof(si)); | |
5016 si.cb = sizeof(si); | |
5017 memset(&pi, 0, sizeof(pi)); | |
5018 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
5019 cmd, // command line | |
5020 NULL, // process security attribute | |
5021 NULL, // thread security attribute | |
5022 TRUE, // inherits system handles | |
5023 0, // no creation flags | |
5024 NULL, // use parent's environment block | |
5025 NULL, // use parent's starting directory | |
5026 &si, // (in) startup information | |
5027 &pi); // (out) process information | |
5028 | |
5029 if (rslt) { | |
5030 // Wait until child process exits. | |
5031 WaitForSingleObject(pi.hProcess, INFINITE); | |
5032 | |
5033 DWORD exit_code; | |
5034 GetExitCodeProcess(pi.hProcess, &exit_code); | |
5035 | |
5036 // Close process and thread handles. | |
5037 CloseHandle(pi.hProcess); | |
5038 CloseHandle(pi.hThread); | |
5039 | |
5040 return (int)exit_code; | |
5041 } else { | |
5042 return -1; | |
5043 } | |
5044 } | |
5045 | |
5046 //-------------------------------------------------------------------------------------------------- | |
5047 // Non-product code | |
5048 | |
5049 static int mallocDebugIntervalCounter = 0; | |
5050 static int mallocDebugCounter = 0; | |
5051 bool os::check_heap(bool force) { | |
5052 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
5053 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
5054 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
5055 // wrong; at these points, eax contains the address of the offending block (I think). | |
5056 // To get to the exlicit error message(s) below, just continue twice. | |
5057 HANDLE heap = GetProcessHeap(); | |
5058 { HeapLock(heap); | |
5059 PROCESS_HEAP_ENTRY phe; | |
5060 phe.lpData = NULL; | |
5061 while (HeapWalk(heap, &phe) != 0) { | |
5062 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
5063 !HeapValidate(heap, 0, phe.lpData)) { | |
5064 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
5065 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
5066 fatal("corrupted C heap"); | |
5067 } | |
5068 } | |
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5069 DWORD err = GetLastError(); |
0 | 5070 if (err != ERROR_NO_MORE_ITEMS && err != ERROR_CALL_NOT_IMPLEMENTED) { |
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5071 fatal(err_msg("heap walk aborted with error %d", err)); |
0 | 5072 } |
5073 HeapUnlock(heap); | |
5074 } | |
5075 mallocDebugIntervalCounter = 0; | |
5076 } | |
5077 return true; | |
5078 } | |
5079 | |
5080 | |
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|
5081 bool os::find(address addr, outputStream* st) { |
0 | 5082 // Nothing yet |
5083 return false; | |
5084 } | |
5085 | |
5086 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
5087 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
5088 | |
5089 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
5090 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
5091 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
5092 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
5093 | |
5094 if (os::is_memory_serialize_page(thread, addr)) | |
5095 return EXCEPTION_CONTINUE_EXECUTION; | |
5096 } | |
5097 | |
5098 return EXCEPTION_CONTINUE_SEARCH; | |
5099 } | |
5100 | |
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|
5101 // We don't build a headless jre for Windows |
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|
5102 bool os::is_headless_jre() { return false; } |
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5103 |
8872 | 5104 static jint initSock() { |
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|
5105 WSADATA wsadata; |
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|
5106 |
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|
5107 if (!os::WinSock2Dll::WinSock2Available()) { |
8872 | 5108 jio_fprintf(stderr, "Could not load Winsock (error: %d)\n", |
3833
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|
5109 ::GetLastError()); |
8872 | 5110 return JNI_ERR; |
5111 } | |
5112 | |
5113 if (os::WinSock2Dll::WSAStartup(MAKEWORD(2,2), &wsadata) != 0) { | |
5114 jio_fprintf(stderr, "Could not initialize Winsock (error: %d)\n", | |
5115 ::GetLastError()); | |
5116 return JNI_ERR; | |
5117 } | |
5118 return JNI_OK; | |
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|
5119 } |
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|
5120 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
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|
5121 struct hostent* os::get_host_by_name(char* name) { |
3833
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|
5122 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
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ikrylov
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|
5123 } |
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|
5124 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
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|
5125 int os::socket_close(int fd) { |
6044
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diff
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|
5126 return ::closesocket(fd); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5127 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5128 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5129 int os::socket_available(int fd, jint *pbytes) { |
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5130 int ret = ::ioctlsocket(fd, FIONREAD, (u_long*)pbytes); |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
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|
5131 return (ret < 0) ? 0 : 1; |
1980
828eafbd85cc
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diff
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|
5132 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
5133 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5134 int os::socket(int domain, int type, int protocol) { |
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
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|
5135 return ::socket(domain, type, protocol); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5136 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5137 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5138 int os::listen(int fd, int count) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5139 return ::listen(fd, count); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5140 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5141 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5142 int os::connect(int fd, struct sockaddr* him, socklen_t len) { |
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
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|
5143 return ::connect(fd, him, len); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5144 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5145 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5146 int os::accept(int fd, struct sockaddr* him, socklen_t* len) { |
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5147 return ::accept(fd, him, len); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5148 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5149 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5150 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
|
5151 struct sockaddr* to, socklen_t tolen) { |
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5152 |
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5153 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
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|
5154 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5155 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5156 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
|
5157 sockaddr* from, socklen_t* fromlen) { |
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5158 |
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5159 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
|
5160 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5161 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5162 int os::recv(int fd, char* buf, size_t nBytes, uint flags) { |
6044
ec15e8f6e4f1
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twisti
parents:
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diff
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|
5163 return ::recv(fd, buf, (int)nBytes, flags); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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parents:
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diff
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|
5164 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5165 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5166 int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
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|
5167 return ::send(fd, buf, (int)nBytes, flags); |
1980
828eafbd85cc
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ikrylov
parents:
1972
diff
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|
5168 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
5169 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5170 int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) { |
6044
ec15e8f6e4f1
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twisti
parents:
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diff
changeset
|
5171 return ::send(fd, buf, (int)nBytes, flags); |
1980
828eafbd85cc
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1972
diff
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|
5172 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5173 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5174 int os::timeout(int fd, long timeout) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5175 fd_set tbl; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5176 struct timeval t; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5177 |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5178 t.tv_sec = timeout / 1000; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5179 t.tv_usec = (timeout % 1000) * 1000; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5180 |
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5181 tbl.fd_count = 1; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5182 tbl.fd_array[0] = fd; |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5183 |
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5184 return ::select(1, &tbl, 0, 0, &t); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5185 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5186 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5187 int os::get_host_name(char* name, int namelen) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5188 return ::gethostname(name, namelen); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5189 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5190 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5191 int os::socket_shutdown(int fd, int howto) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5192 return ::shutdown(fd, howto); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5193 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5194 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5195 int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5196 return ::bind(fd, him, len); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5197 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5198 |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5199 int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5200 return ::getsockname(fd, him, len); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5201 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5202 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5203 int os::get_sock_opt(int fd, int level, int optname, |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5204 char* optval, socklen_t* optlen) { |
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5205 return ::getsockopt(fd, level, optname, optval, optlen); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5206 } |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5207 |
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5208 int os::set_sock_opt(int fd, int level, int optname, |
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5209 const char* optval, socklen_t optlen) { |
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5210 return ::setsockopt(fd, level, optname, optval, optlen); |
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
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diff
changeset
|
5211 } |
3833
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|
5212 |
10405 | 5213 // WINDOWS CONTEXT Flags for THREAD_SAMPLING |
5214 #if defined(IA32) | |
5215 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT | CONTEXT_EXTENDED_REGISTERS) | |
5216 #elif defined (AMD64) | |
5217 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
5218 #endif | |
5219 | |
5220 // returns true if thread could be suspended, | |
5221 // false otherwise | |
5222 static bool do_suspend(HANDLE* h) { | |
5223 if (h != NULL) { | |
5224 if (SuspendThread(*h) != ~0) { | |
5225 return true; | |
5226 } | |
5227 } | |
5228 return false; | |
5229 } | |
5230 | |
5231 // resume the thread | |
5232 // calling resume on an active thread is a no-op | |
5233 static void do_resume(HANDLE* h) { | |
5234 if (h != NULL) { | |
5235 ResumeThread(*h); | |
5236 } | |
5237 } | |
5238 | |
5239 // retrieve a suspend/resume context capable handle | |
5240 // from the tid. Caller validates handle return value. | |
5241 void get_thread_handle_for_extended_context(HANDLE* h, OSThread::thread_id_t tid) { | |
5242 if (h != NULL) { | |
5243 *h = OpenThread(THREAD_SUSPEND_RESUME | THREAD_GET_CONTEXT | THREAD_QUERY_INFORMATION, FALSE, tid); | |
5244 } | |
5245 } | |
5246 | |
5247 // | |
5248 // Thread sampling implementation | |
5249 // | |
5250 void os::SuspendedThreadTask::internal_do_task() { | |
5251 CONTEXT ctxt; | |
5252 HANDLE h = NULL; | |
5253 | |
5254 // get context capable handle for thread | |
5255 get_thread_handle_for_extended_context(&h, _thread->osthread()->thread_id()); | |
5256 | |
5257 // sanity | |
5258 if (h == NULL || h == INVALID_HANDLE_VALUE) { | |
5259 return; | |
5260 } | |
5261 | |
5262 // suspend the thread | |
5263 if (do_suspend(&h)) { | |
5264 ctxt.ContextFlags = sampling_context_flags; | |
5265 // get thread context | |
5266 GetThreadContext(h, &ctxt); | |
5267 SuspendedThreadTaskContext context(_thread, &ctxt); | |
5268 // pass context to Thread Sampling impl | |
5269 do_task(context); | |
5270 // resume thread | |
5271 do_resume(&h); | |
5272 } | |
5273 | |
5274 // close handle | |
5275 CloseHandle(h); | |
5276 } | |
5277 | |
3833
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|
5278 |
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|
5279 // Kernel32 API |
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|
5280 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
3885 | 5281 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
5282 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
5283 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
6197 | 5284 typedef USHORT (WINAPI* RtlCaptureStackBackTrace_Fn)(ULONG, ULONG, PVOID*, PULONG); |
3885 | 5285 |
3833
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diff
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|
5286 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
3885 | 5287 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
5288 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
5289 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
6197 | 5290 RtlCaptureStackBackTrace_Fn os::Kernel32Dll::_RtlCaptureStackBackTrace = NULL; |
5291 | |
5292 | |
3833
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|
5293 BOOL os::Kernel32Dll::initialized = FALSE; |
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|
5294 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
b1cbb0907b36
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|
5295 assert(initialized && _GetLargePageMinimum != NULL, |
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|
5296 "GetLargePageMinimumAvailable() not yet called"); |
b1cbb0907b36
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|
5297 return _GetLargePageMinimum(); |
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|
5298 } |
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|
5299 |
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|
5300 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
b1cbb0907b36
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|
5301 if (!initialized) { |
b1cbb0907b36
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|
5302 initialize(); |
b1cbb0907b36
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|
5303 } |
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|
5304 return _GetLargePageMinimum != NULL; |
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|
5305 } |
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|
5306 |
3885 | 5307 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
5308 if (!initialized) { | |
5309 initialize(); | |
5310 } | |
5311 return _VirtualAllocExNuma != NULL; | |
5312 } | |
5313 | |
5314 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
5315 assert(initialized && _VirtualAllocExNuma != NULL, | |
5316 "NUMACallsAvailable() not yet called"); | |
5317 | |
5318 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
5319 } | |
5320 | |
5321 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
5322 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
5323 "NUMACallsAvailable() not yet called"); | |
5324 | |
5325 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
5326 } | |
5327 | |
5328 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
5329 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
5330 "NUMACallsAvailable() not yet called"); | |
5331 | |
5332 return _GetNumaNodeProcessorMask(node, proc_mask); | |
5333 } | |
5334 | |
6197 | 5335 USHORT os::Kernel32Dll::RtlCaptureStackBackTrace(ULONG FrameToSkip, |
5336 ULONG FrameToCapture, PVOID* BackTrace, PULONG BackTraceHash) { | |
5337 if (!initialized) { | |
5338 initialize(); | |
5339 } | |
5340 | |
5341 if (_RtlCaptureStackBackTrace != NULL) { | |
5342 return _RtlCaptureStackBackTrace(FrameToSkip, FrameToCapture, | |
5343 BackTrace, BackTraceHash); | |
5344 } else { | |
5345 return 0; | |
5346 } | |
5347 } | |
3885 | 5348 |
5349 void os::Kernel32Dll::initializeCommon() { | |
5350 if (!initialized) { | |
5351 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
5352 assert(handle != NULL, "Just check"); | |
5353 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
5354 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
5355 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
5356 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
6197 | 5357 _RtlCaptureStackBackTrace = (RtlCaptureStackBackTrace_Fn)::GetProcAddress(handle, "RtlCaptureStackBackTrace"); |
3885 | 5358 initialized = TRUE; |
5359 } | |
5360 } | |
5361 | |
5362 | |
3833
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5363 |
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5364 #ifndef JDK6_OR_EARLIER |
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5365 |
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5366 void os::Kernel32Dll::initialize() { |
3885 | 5367 initializeCommon(); |
3833
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5368 } |
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5369 |
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5370 |
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5371 // Kernel32 API |
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5372 inline BOOL os::Kernel32Dll::SwitchToThread() { |
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5373 return ::SwitchToThread(); |
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5374 } |
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5375 |
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5376 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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5377 return true; |
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5378 } |
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5379 |
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5380 // Help tools |
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5381 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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5382 return true; |
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5383 } |
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5384 |
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5385 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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5386 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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5387 } |
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5388 |
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5389 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5390 return ::Module32First(hSnapshot, lpme); |
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5391 } |
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5392 |
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5393 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5394 return ::Module32Next(hSnapshot, lpme); |
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5395 } |
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5396 |
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5397 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
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5398 ::GetNativeSystemInfo(lpSystemInfo); |
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5399 } |
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5400 |
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5401 // PSAPI API |
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5402 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
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5403 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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5404 } |
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5405 |
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5406 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
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5407 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
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5408 } |
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|
5409 |
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5410 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
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5411 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
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5412 } |
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5413 |
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5414 inline BOOL os::PSApiDll::PSApiAvailable() { |
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5415 return true; |
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5416 } |
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|
5417 |
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|
5418 |
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|
5419 // WinSock2 API |
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5420 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
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5421 return ::WSAStartup(wVersionRequested, lpWSAData); |
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5422 } |
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5423 |
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5424 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
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5425 return ::gethostbyname(name); |
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5426 } |
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5427 |
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5428 inline BOOL os::WinSock2Dll::WinSock2Available() { |
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5429 return true; |
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5430 } |
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|
5431 |
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5432 // Advapi API |
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5433 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
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5434 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
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5435 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
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5436 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
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5437 BufferLength, PreviousState, ReturnLength); |
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5438 } |
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5439 |
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5440 inline BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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5441 PHANDLE TokenHandle) { |
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5442 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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5443 } |
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5444 |
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5445 inline BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
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5446 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
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5447 } |
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5448 |
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5449 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
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5450 return true; |
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5451 } |
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5452 |
12117
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5453 void* os::get_default_process_handle() { |
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5454 return (void*)GetModuleHandle(NULL); |
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5455 } |
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5456 |
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5457 // Builds a platform dependent Agent_OnLoad_<lib_name> function name |
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5458 // which is used to find statically linked in agents. |
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5459 // Additionally for windows, takes into account __stdcall names. |
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5460 // Parameters: |
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5461 // sym_name: Symbol in library we are looking for |
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5462 // lib_name: Name of library to look in, NULL for shared libs. |
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5463 // is_absolute_path == true if lib_name is absolute path to agent |
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5464 // such as "C:/a/b/L.dll" |
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|
5465 // == false if only the base name of the library is passed in |
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5466 // such as "L" |
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5467 char* os::build_agent_function_name(const char *sym_name, const char *lib_name, |
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|
5468 bool is_absolute_path) { |
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|
5469 char *agent_entry_name; |
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|
5470 size_t len; |
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|
5471 size_t name_len; |
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5472 size_t prefix_len = strlen(JNI_LIB_PREFIX); |
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|
5473 size_t suffix_len = strlen(JNI_LIB_SUFFIX); |
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|
5474 const char *start; |
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|
5475 |
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|
5476 if (lib_name != NULL) { |
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|
5477 len = name_len = strlen(lib_name); |
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|
5478 if (is_absolute_path) { |
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|
5479 // Need to strip path, prefix and suffix |
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|
5480 if ((start = strrchr(lib_name, *os::file_separator())) != NULL) { |
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|
5481 lib_name = ++start; |
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|
5482 } else { |
12220 | 5483 // Need to check for drive prefix |
12117
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5484 if ((start = strchr(lib_name, ':')) != NULL) { |
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|
5485 lib_name = ++start; |
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|
5486 } |
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|
5487 } |
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|
5488 if (len <= (prefix_len + suffix_len)) { |
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|
5489 return NULL; |
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|
5490 } |
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|
5491 lib_name += prefix_len; |
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5492 name_len = strlen(lib_name) - suffix_len; |
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|
5493 } |
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|
5494 } |
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|
5495 len = (lib_name != NULL ? name_len : 0) + strlen(sym_name) + 2; |
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5496 agent_entry_name = NEW_C_HEAP_ARRAY_RETURN_NULL(char, len, mtThread); |
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|
5497 if (agent_entry_name == NULL) { |
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|
5498 return NULL; |
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|
5499 } |
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|
5500 if (lib_name != NULL) { |
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|
5501 const char *p = strrchr(sym_name, '@'); |
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|
5502 if (p != NULL && p != sym_name) { |
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|
5503 // sym_name == _Agent_OnLoad@XX |
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|
5504 strncpy(agent_entry_name, sym_name, (p - sym_name)); |
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|
5505 agent_entry_name[(p-sym_name)] = '\0'; |
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|
5506 // agent_entry_name == _Agent_OnLoad |
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|
5507 strcat(agent_entry_name, "_"); |
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|
5508 strncat(agent_entry_name, lib_name, name_len); |
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|
5509 strcat(agent_entry_name, p); |
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|
5510 // agent_entry_name == _Agent_OnLoad_lib_name@XX |
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|
5511 } else { |
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|
5512 strcpy(agent_entry_name, sym_name); |
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|
5513 strcat(agent_entry_name, "_"); |
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|
5514 strncat(agent_entry_name, lib_name, name_len); |
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|
5515 } |
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|
5516 } else { |
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|
5517 strcpy(agent_entry_name, sym_name); |
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|
5518 } |
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|
5519 return agent_entry_name; |
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|
5520 } |
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|
5521 |
3833
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|
5522 #else |
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|
5523 // Kernel32 API |
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|
5524 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
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5525 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
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|
5526 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
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|
5527 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
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|
5528 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
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|
5529 |
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|
5530 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
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|
5531 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
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|
5532 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
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|
5533 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
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|
5534 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
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|
5535 |
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|
5536 void os::Kernel32Dll::initialize() { |
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|
5537 if (!initialized) { |
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|
5538 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
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|
5539 assert(handle != NULL, "Just check"); |
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|
5540 |
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|
5541 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
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|
5542 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
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|
5543 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
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|
5544 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
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|
5545 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
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|
5546 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
3885 | 5547 initializeCommon(); // resolve the functions that always need resolving |
3833
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|
5548 |
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|
5549 initialized = TRUE; |
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|
5550 } |
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|
5551 } |
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|
5552 |
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|
5553 BOOL os::Kernel32Dll::SwitchToThread() { |
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|
5554 assert(initialized && _SwitchToThread != NULL, |
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|
5555 "SwitchToThreadAvailable() not yet called"); |
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|
5556 return _SwitchToThread(); |
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|
5557 } |
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|
5558 |
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|
5559 |
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|
5560 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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|
5561 if (!initialized) { |
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|
5562 initialize(); |
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|
5563 } |
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|
5564 return _SwitchToThread != NULL; |
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|
5565 } |
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|
5566 |
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|
5567 // Help tools |
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|
5568 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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|
5569 if (!initialized) { |
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|
5570 initialize(); |
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|
5571 } |
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|
5572 return _CreateToolhelp32Snapshot != NULL && |
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|
5573 _Module32First != NULL && |
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|
5574 _Module32Next != NULL; |
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|
5575 } |
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|
5576 |
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|
5577 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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|
5578 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
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|
5579 "HelpToolsAvailable() not yet called"); |
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|
5580 |
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|
5581 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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5582 } |
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|
5583 |
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5584 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5585 assert(initialized && _Module32First != NULL, |
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5586 "HelpToolsAvailable() not yet called"); |
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|
5587 |
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|
5588 return _Module32First(hSnapshot, lpme); |
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5589 } |
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|
5590 |
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5591 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5592 assert(initialized && _Module32Next != NULL, |
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|
5593 "HelpToolsAvailable() not yet called"); |
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|
5594 |
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5595 return _Module32Next(hSnapshot, lpme); |
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|
5596 } |
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|
5597 |
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|
5598 |
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5599 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
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5600 if (!initialized) { |
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|
5601 initialize(); |
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5602 } |
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5603 return _GetNativeSystemInfo != NULL; |
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|
5604 } |
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|
5605 |
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5606 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
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5607 assert(initialized && _GetNativeSystemInfo != NULL, |
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5608 "GetNativeSystemInfoAvailable() not yet called"); |
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|
5609 |
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5610 _GetNativeSystemInfo(lpSystemInfo); |
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5611 } |
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|
5612 |
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|
5613 // PSAPI API |
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|
5614 |
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|
5615 |
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5616 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
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5617 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
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5618 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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|
5619 |
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5620 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
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5621 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
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5622 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
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5623 BOOL os::PSApiDll::initialized = FALSE; |
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|
5624 |
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5625 void os::PSApiDll::initialize() { |
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5626 if (!initialized) { |
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5627 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
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5628 if (handle != NULL) { |
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5629 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
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5630 "EnumProcessModules"); |
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5631 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
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|
5632 "GetModuleFileNameExA"); |
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5633 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
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|
5634 "GetModuleInformation"); |
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|
5635 } |
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|
5636 initialized = TRUE; |
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|
5637 } |
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|
5638 } |
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|
5639 |
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|
5640 |
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|
5641 |
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|
5642 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
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|
5643 assert(initialized && _EnumProcessModules != NULL, |
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|
5644 "PSApiAvailable() not yet called"); |
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|
5645 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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|
5646 } |
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|
5647 |
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|
5648 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
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|
5649 assert(initialized && _GetModuleFileNameEx != NULL, |
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|
5650 "PSApiAvailable() not yet called"); |
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|
5651 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
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|
5652 } |
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|
5653 |
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|
5654 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
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|
5655 assert(initialized && _GetModuleInformation != NULL, |
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|
5656 "PSApiAvailable() not yet called"); |
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|
5657 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
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|
5658 } |
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|
5659 |
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|
5660 BOOL os::PSApiDll::PSApiAvailable() { |
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|
5661 if (!initialized) { |
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|
5662 initialize(); |
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|
5663 } |
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5664 return _EnumProcessModules != NULL && |
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|
5665 _GetModuleFileNameEx != NULL && |
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|
5666 _GetModuleInformation != NULL; |
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|
5667 } |
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|
5668 |
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|
5669 |
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|
5670 // WinSock2 API |
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5671 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
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5672 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
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|
5673 |
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|
5674 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
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5675 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
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5676 BOOL os::WinSock2Dll::initialized = FALSE; |
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|
5677 |
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|
5678 void os::WinSock2Dll::initialize() { |
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|
5679 if (!initialized) { |
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|
5680 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
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|
5681 if (handle != NULL) { |
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|
5682 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
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5683 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
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|
5684 } |
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|
5685 initialized = TRUE; |
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|
5686 } |
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|
5687 } |
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|
5688 |
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|
5689 |
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|
5690 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
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|
5691 assert(initialized && _WSAStartup != NULL, |
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|
5692 "WinSock2Available() not yet called"); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5693 return _WSAStartup(wVersionRequested, lpWSAData); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5694 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5695 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5696 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5697 assert(initialized && _gethostbyname != NULL, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5698 "WinSock2Available() not yet called"); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5699 return _gethostbyname(name); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5700 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5701 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5702 BOOL os::WinSock2Dll::WinSock2Available() { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5703 if (!initialized) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5704 initialize(); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5705 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5706 return _WSAStartup != NULL && |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5707 _gethostbyname != NULL; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5708 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5709 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5710 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5711 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5712 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5713 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5714 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5715 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5716 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5717 BOOL os::Advapi32Dll::initialized = FALSE; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5718 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5719 void os::Advapi32Dll::initialize() { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5720 if (!initialized) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5721 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5722 if (handle != NULL) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5723 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5724 "AdjustTokenPrivileges"); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5725 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5726 "OpenProcessToken"); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5727 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
3834
279ef1916773
7065535: Mistyped function name that disabled UseLargePages on Windows
zgu
parents:
3833
diff
changeset
|
5728 "LookupPrivilegeValueA"); |
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5729 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5730 initialized = TRUE; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5731 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5732 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5733 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5734 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
|
5735 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5736 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5737 assert(initialized && _AdjustTokenPrivileges != NULL, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5738 "AdvapiAvailable() not yet called"); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5739 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5740 BufferLength, PreviousState, ReturnLength); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5741 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5742 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5743 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
|
5744 PHANDLE TokenHandle) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5745 assert(initialized && _OpenProcessToken != NULL, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5746 "AdvapiAvailable() not yet called"); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5747 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5748 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5749 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5750 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5751 assert(initialized && _LookupPrivilegeValue != NULL, |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5752 "AdvapiAvailable() not yet called"); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5753 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5754 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5755 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5756 BOOL os::Advapi32Dll::AdvapiAvailable() { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5757 if (!initialized) { |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5758 initialize(); |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5759 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5760 return _AdjustTokenPrivileges != NULL && |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5761 _OpenProcessToken != NULL && |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5762 _LookupPrivilegeValue != NULL; |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5763 } |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5764 |
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5765 #endif |
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5766 |
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5767 #ifndef PRODUCT |
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5768 |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5769 // 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
tschatzl
parents:
12124
diff
changeset
|
5770 // contiguous memory block at a particular address. |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5771 // 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
tschatzl
parents:
12124
diff
changeset
|
5772 // 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
tschatzl
parents:
12124
diff
changeset
|
5773 // 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
tschatzl
parents:
12124
diff
changeset
|
5774 // 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
changeset
|
5775 // 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
parents:
12124
diff
changeset
|
5776 // 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
parents:
12124
diff
changeset
|
5777 // 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:
12124
diff
changeset
|
5778 // be legitimate. |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5779 // If -XX:+VerboseInternalVMTests is enabled, print some explanatory messages. |
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5780 void TestReserveMemorySpecial_test() { |
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5781 if (!UseLargePages) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5782 if (VerboseInternalVMTests) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5783 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:
12124
diff
changeset
|
5784 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5785 return; |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5786 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5787 // save current value of globals |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5788 bool old_use_large_pages_individual_allocation = UseLargePagesIndividualAllocation; |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5789 bool old_use_numa_interleaving = UseNUMAInterleaving; |
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 // set globals to make sure we hit the correct code path |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5792 UseLargePagesIndividualAllocation = UseNUMAInterleaving = false; |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5793 |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5794 // 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
parents:
12124
diff
changeset
|
5795 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:
12124
diff
changeset
|
5796 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:
12124
diff
changeset
|
5797 if (result == NULL) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5798 if (VerboseInternalVMTests) { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5799 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:
12124
diff
changeset
|
5800 large_allocation_size); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5801 } |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5802 } else { |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5803 os::release_memory_special(result, large_allocation_size); |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5804 |
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
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|
5805 // allocate another page within the recently allocated memory area which seems to be a good location. At least |
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5806 // we managed to get it once. |
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5807 const size_t expected_allocation_size = os::large_page_size(); |
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5808 char* expected_location = result + os::large_page_size(); |
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5809 char* actual_location = os::reserve_memory_special(expected_allocation_size, os::large_page_size(), expected_location, false); |
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5810 if (actual_location == NULL) { |
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5811 if (VerboseInternalVMTests) { |
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5812 gclog_or_tty->print("Failed to allocate any memory at "PTR_FORMAT" size "SIZE_FORMAT". Skipping remainder of test.", |
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5813 expected_location, large_allocation_size); |
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5814 } |
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5815 } else { |
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5816 // release memory |
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5817 os::release_memory_special(actual_location, expected_allocation_size); |
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5818 // only now check, after releasing any memory to avoid any leaks. |
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5819 assert(actual_location == expected_location, |
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5820 err_msg("Failed to allocate memory at requested location "PTR_FORMAT" of size "SIZE_FORMAT", is "PTR_FORMAT" instead", |
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5821 expected_location, expected_allocation_size, actual_location)); |
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5822 } |
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5823 } |
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5824 |
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5825 // restore globals |
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5826 UseLargePagesIndividualAllocation = old_use_large_pages_individual_allocation; |
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5827 UseNUMAInterleaving = old_use_numa_interleaving; |
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5828 } |
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5829 #endif // PRODUCT |
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5830 |