Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.cpp @ 4803:d7e3846464d0
7071311: Decoder enhancement
Summary: Made decoder thread-safe
Reviewed-by: coleenp, kamg
| author | zgu |
|---|---|
| date | Tue, 17 Jan 2012 13:08:52 -0500 |
| parents | 2b3acb34791f |
| children | de268c8a8075 aa3d708d67c4 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
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25 // Must be at least Windows 2000 or XP to use VectoredExceptions and IsDebuggerPresent |
| 0 | 26 #define _WIN32_WINNT 0x500 |
| 27 | |
| 1972 | 28 // no precompiled headers |
| 29 #include "classfile/classLoader.hpp" | |
| 30 #include "classfile/systemDictionary.hpp" | |
| 31 #include "classfile/vmSymbols.hpp" | |
| 32 #include "code/icBuffer.hpp" | |
| 33 #include "code/vtableStubs.hpp" | |
| 34 #include "compiler/compileBroker.hpp" | |
| 35 #include "interpreter/interpreter.hpp" | |
| 36 #include "jvm_windows.h" | |
| 37 #include "memory/allocation.inline.hpp" | |
| 38 #include "memory/filemap.hpp" | |
| 39 #include "mutex_windows.inline.hpp" | |
| 40 #include "oops/oop.inline.hpp" | |
| 41 #include "os_share_windows.hpp" | |
| 42 #include "prims/jniFastGetField.hpp" | |
| 43 #include "prims/jvm.h" | |
| 44 #include "prims/jvm_misc.hpp" | |
| 45 #include "runtime/arguments.hpp" | |
| 46 #include "runtime/extendedPC.hpp" | |
| 47 #include "runtime/globals.hpp" | |
| 48 #include "runtime/interfaceSupport.hpp" | |
| 49 #include "runtime/java.hpp" | |
| 50 #include "runtime/javaCalls.hpp" | |
| 51 #include "runtime/mutexLocker.hpp" | |
| 52 #include "runtime/objectMonitor.hpp" | |
| 53 #include "runtime/osThread.hpp" | |
| 54 #include "runtime/perfMemory.hpp" | |
| 55 #include "runtime/sharedRuntime.hpp" | |
| 56 #include "runtime/statSampler.hpp" | |
| 57 #include "runtime/stubRoutines.hpp" | |
| 58 #include "runtime/threadCritical.hpp" | |
| 59 #include "runtime/timer.hpp" | |
| 60 #include "services/attachListener.hpp" | |
| 61 #include "services/runtimeService.hpp" | |
| 62 #include "thread_windows.inline.hpp" | |
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63 #include "utilities/decoder.hpp" |
| 1972 | 64 #include "utilities/defaultStream.hpp" |
| 65 #include "utilities/events.hpp" | |
| 66 #include "utilities/growableArray.hpp" | |
| 67 #include "utilities/vmError.hpp" | |
| 68 #ifdef TARGET_ARCH_x86 | |
| 69 # include "assembler_x86.inline.hpp" | |
| 70 # include "nativeInst_x86.hpp" | |
| 71 #endif | |
| 72 #ifdef COMPILER1 | |
| 73 #include "c1/c1_Runtime1.hpp" | |
| 74 #endif | |
| 75 #ifdef COMPILER2 | |
| 76 #include "opto/runtime.hpp" | |
| 77 #endif | |
| 0 | 78 |
| 79 #ifdef _DEBUG | |
| 80 #include <crtdbg.h> | |
| 81 #endif | |
| 82 | |
| 83 | |
| 84 #include <windows.h> | |
| 85 #include <sys/types.h> | |
| 86 #include <sys/stat.h> | |
| 87 #include <sys/timeb.h> | |
| 88 #include <objidl.h> | |
| 89 #include <shlobj.h> | |
| 90 | |
| 91 #include <malloc.h> | |
| 92 #include <signal.h> | |
| 93 #include <direct.h> | |
| 94 #include <errno.h> | |
| 95 #include <fcntl.h> | |
| 96 #include <io.h> | |
| 97 #include <process.h> // For _beginthreadex(), _endthreadex() | |
| 98 #include <imagehlp.h> // For os::dll_address_to_function_name | |
| 99 | |
| 100 /* for enumerating dll libraries */ | |
| 101 #include <vdmdbg.h> | |
| 102 | |
| 103 // for timer info max values which include all bits | |
| 104 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
| 105 | |
| 106 // For DLL loading/load error detection | |
| 107 // Values of PE COFF | |
| 108 #define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c | |
| 109 #define IMAGE_FILE_SIGNATURE_LENGTH 4 | |
| 110 | |
| 111 static HANDLE main_process; | |
| 112 static HANDLE main_thread; | |
| 113 static int main_thread_id; | |
| 114 | |
| 115 static FILETIME process_creation_time; | |
| 116 static FILETIME process_exit_time; | |
| 117 static FILETIME process_user_time; | |
| 118 static FILETIME process_kernel_time; | |
| 119 | |
| 120 #ifdef _WIN64 | |
| 121 PVOID topLevelVectoredExceptionHandler = NULL; | |
| 122 #endif | |
| 123 | |
| 124 #ifdef _M_IA64 | |
| 125 #define __CPU__ ia64 | |
| 126 #elif _M_AMD64 | |
| 127 #define __CPU__ amd64 | |
| 128 #else | |
| 129 #define __CPU__ i486 | |
| 130 #endif | |
| 131 | |
| 132 // save DLL module handle, used by GetModuleFileName | |
| 133 | |
| 134 HINSTANCE vm_lib_handle; | |
| 135 | |
| 136 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
| 137 switch (reason) { | |
| 138 case DLL_PROCESS_ATTACH: | |
| 139 vm_lib_handle = hinst; | |
| 140 if(ForceTimeHighResolution) | |
| 141 timeBeginPeriod(1L); | |
| 142 break; | |
| 143 case DLL_PROCESS_DETACH: | |
| 144 if(ForceTimeHighResolution) | |
| 145 timeEndPeriod(1L); | |
| 146 #ifdef _WIN64 | |
| 147 if (topLevelVectoredExceptionHandler != NULL) { | |
| 148 RemoveVectoredExceptionHandler(topLevelVectoredExceptionHandler); | |
| 149 topLevelVectoredExceptionHandler = NULL; | |
| 150 } | |
| 151 #endif | |
| 152 break; | |
| 153 default: | |
| 154 break; | |
| 155 } | |
| 156 return true; | |
| 157 } | |
| 158 | |
| 159 static inline double fileTimeAsDouble(FILETIME* time) { | |
| 160 const double high = (double) ((unsigned int) ~0); | |
| 161 const double split = 10000000.0; | |
| 162 double result = (time->dwLowDateTime / split) + | |
| 163 time->dwHighDateTime * (high/split); | |
| 164 return result; | |
| 165 } | |
| 166 | |
| 167 // Implementation of os | |
| 168 | |
| 169 bool os::getenv(const char* name, char* buffer, int len) { | |
| 170 int result = GetEnvironmentVariable(name, buffer, len); | |
| 171 return result > 0 && result < len; | |
| 172 } | |
| 173 | |
| 174 | |
| 175 // No setuid programs under Windows. | |
| 176 bool os::have_special_privileges() { | |
| 177 return false; | |
| 178 } | |
| 179 | |
| 180 | |
| 181 // This method is a periodic task to check for misbehaving JNI applications | |
| 182 // under CheckJNI, we can add any periodic checks here. | |
| 183 // For Windows at the moment does nothing | |
| 184 void os::run_periodic_checks() { | |
| 185 return; | |
| 186 } | |
| 187 | |
| 188 #ifndef _WIN64 | |
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189 // previous UnhandledExceptionFilter, if there is one |
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190 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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191 |
| 0 | 192 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
| 193 #endif | |
| 194 void os::init_system_properties_values() { | |
| 195 /* sysclasspath, java_home, dll_dir */ | |
| 196 { | |
| 197 char *home_path; | |
| 198 char *dll_path; | |
| 199 char *pslash; | |
| 200 char *bin = "\\bin"; | |
| 201 char home_dir[MAX_PATH]; | |
| 202 | |
| 203 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
| 204 os::jvm_path(home_dir, sizeof(home_dir)); | |
| 205 // Found the full path to jvm[_g].dll. | |
| 206 // Now cut the path to <java_home>/jre if we can. | |
| 207 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
| 208 pslash = strrchr(home_dir, '\\'); | |
| 209 if (pslash != NULL) { | |
| 210 *pslash = '\0'; /* get rid of \{client|server} */ | |
| 211 pslash = strrchr(home_dir, '\\'); | |
| 212 if (pslash != NULL) | |
| 213 *pslash = '\0'; /* get rid of \bin */ | |
| 214 } | |
| 215 } | |
| 216 | |
| 217 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1); | |
| 218 if (home_path == NULL) | |
| 219 return; | |
| 220 strcpy(home_path, home_dir); | |
| 221 Arguments::set_java_home(home_path); | |
| 222 | |
| 223 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1); | |
| 224 if (dll_path == NULL) | |
| 225 return; | |
| 226 strcpy(dll_path, home_dir); | |
| 227 strcat(dll_path, bin); | |
| 228 Arguments::set_dll_dir(dll_path); | |
| 229 | |
| 230 if (!set_boot_path('\\', ';')) | |
| 231 return; | |
| 232 } | |
| 233 | |
| 234 /* library_path */ | |
| 235 #define EXT_DIR "\\lib\\ext" | |
| 236 #define BIN_DIR "\\bin" | |
| 237 #define PACKAGE_DIR "\\Sun\\Java" | |
| 238 { | |
| 239 /* Win32 library search order (See the documentation for LoadLibrary): | |
| 240 * | |
| 241 * 1. The directory from which application is loaded. | |
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242 * 2. The system wide Java Extensions directory (Java only) |
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243 * 3. System directory (GetSystemDirectory) |
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244 * 4. Windows directory (GetWindowsDirectory) |
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245 * 5. The PATH environment variable |
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246 * 6. The current directory |
| 0 | 247 */ |
| 248 | |
| 249 char *library_path; | |
| 250 char tmp[MAX_PATH]; | |
| 251 char *path_str = ::getenv("PATH"); | |
| 252 | |
| 253 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
| 254 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10); | |
| 255 | |
| 256 library_path[0] = '\0'; | |
| 257 | |
| 258 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
| 259 *(strrchr(tmp, '\\')) = '\0'; | |
| 260 strcat(library_path, tmp); | |
| 261 | |
| 262 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 263 strcat(library_path, ";"); | |
| 264 strcat(library_path, tmp); | |
| 265 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
| 266 | |
| 267 GetSystemDirectory(tmp, sizeof(tmp)); | |
| 268 strcat(library_path, ";"); | |
| 269 strcat(library_path, tmp); | |
| 270 | |
| 271 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 272 strcat(library_path, ";"); | |
| 273 strcat(library_path, tmp); | |
| 274 | |
| 275 if (path_str) { | |
| 276 strcat(library_path, ";"); | |
| 277 strcat(library_path, path_str); | |
| 278 } | |
| 279 | |
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280 strcat(library_path, ";."); |
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281 |
| 0 | 282 Arguments::set_library_path(library_path); |
| 283 FREE_C_HEAP_ARRAY(char, library_path); | |
| 284 } | |
| 285 | |
| 286 /* Default extensions directory */ | |
| 287 { | |
| 288 char path[MAX_PATH]; | |
| 289 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
| 290 GetWindowsDirectory(path, MAX_PATH); | |
| 291 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
| 292 path, PACKAGE_DIR, EXT_DIR); | |
| 293 Arguments::set_ext_dirs(buf); | |
| 294 } | |
| 295 #undef EXT_DIR | |
| 296 #undef BIN_DIR | |
| 297 #undef PACKAGE_DIR | |
| 298 | |
| 299 /* Default endorsed standards directory. */ | |
| 300 { | |
| 301 #define ENDORSED_DIR "\\lib\\endorsed" | |
| 302 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
| 303 char * buf = NEW_C_HEAP_ARRAY(char, len); | |
| 304 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); | |
| 305 Arguments::set_endorsed_dirs(buf); | |
| 306 #undef ENDORSED_DIR | |
| 307 } | |
| 308 | |
| 309 #ifndef _WIN64 | |
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310 // set our UnhandledExceptionFilter and save any previous one |
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311 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
| 0 | 312 #endif |
| 313 | |
| 314 // Done | |
| 315 return; | |
| 316 } | |
| 317 | |
| 318 void os::breakpoint() { | |
| 319 DebugBreak(); | |
| 320 } | |
| 321 | |
| 322 // Invoked from the BREAKPOINT Macro | |
| 323 extern "C" void breakpoint() { | |
| 324 os::breakpoint(); | |
| 325 } | |
| 326 | |
| 327 // Returns an estimate of the current stack pointer. Result must be guaranteed | |
| 328 // to point into the calling threads stack, and be no lower than the current | |
| 329 // stack pointer. | |
| 330 | |
| 331 address os::current_stack_pointer() { | |
| 332 int dummy; | |
| 333 address sp = (address)&dummy; | |
| 334 return sp; | |
| 335 } | |
| 336 | |
| 337 // os::current_stack_base() | |
| 338 // | |
| 339 // Returns the base of the stack, which is the stack's | |
| 340 // starting address. This function must be called | |
| 341 // while running on the stack of the thread being queried. | |
| 342 | |
| 343 address os::current_stack_base() { | |
| 344 MEMORY_BASIC_INFORMATION minfo; | |
| 345 address stack_bottom; | |
| 346 size_t stack_size; | |
| 347 | |
| 348 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 349 stack_bottom = (address)minfo.AllocationBase; | |
| 350 stack_size = minfo.RegionSize; | |
| 351 | |
| 352 // Add up the sizes of all the regions with the same | |
| 353 // AllocationBase. | |
| 354 while( 1 ) | |
| 355 { | |
| 356 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
| 357 if ( stack_bottom == (address)minfo.AllocationBase ) | |
| 358 stack_size += minfo.RegionSize; | |
| 359 else | |
| 360 break; | |
| 361 } | |
| 362 | |
| 363 #ifdef _M_IA64 | |
| 364 // IA64 has memory and register stacks | |
| 365 stack_size = stack_size / 2; | |
| 366 #endif | |
| 367 return stack_bottom + stack_size; | |
| 368 } | |
| 369 | |
| 370 size_t os::current_stack_size() { | |
| 371 size_t sz; | |
| 372 MEMORY_BASIC_INFORMATION minfo; | |
| 373 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 374 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
| 375 return sz; | |
| 376 } | |
| 377 | |
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378 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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379 const struct tm* time_struct_ptr = localtime(clock); |
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380 if (time_struct_ptr != NULL) { |
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381 *res = *time_struct_ptr; |
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382 return res; |
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383 } |
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384 return NULL; |
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385 } |
| 0 | 386 |
| 387 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
| 388 | |
| 389 // Thread start routine for all new Java threads | |
| 390 static unsigned __stdcall java_start(Thread* thread) { | |
| 391 // Try to randomize the cache line index of hot stack frames. | |
| 392 // This helps when threads of the same stack traces evict each other's | |
| 393 // cache lines. The threads can be either from the same JVM instance, or | |
| 394 // from different JVM instances. The benefit is especially true for | |
| 395 // processors with hyperthreading technology. | |
| 396 static int counter = 0; | |
| 397 int pid = os::current_process_id(); | |
| 398 _alloca(((pid ^ counter++) & 7) * 128); | |
| 399 | |
| 400 OSThread* osthr = thread->osthread(); | |
| 401 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 402 | |
| 403 if (UseNUMA) { | |
| 404 int lgrp_id = os::numa_get_group_id(); | |
| 405 if (lgrp_id != -1) { | |
| 406 thread->set_lgrp_id(lgrp_id); | |
| 407 } | |
| 408 } | |
| 409 | |
| 410 | |
| 411 if (UseVectoredExceptions) { | |
| 412 // If we are using vectored exception we don't need to set a SEH | |
| 413 thread->run(); | |
| 414 } | |
| 415 else { | |
| 416 // Install a win32 structured exception handler around every thread created | |
| 417 // by VM, so VM can genrate error dump when an exception occurred in non- | |
| 418 // Java thread (e.g. VM thread). | |
| 419 __try { | |
| 420 thread->run(); | |
| 421 } __except(topLevelExceptionFilter( | |
| 422 (_EXCEPTION_POINTERS*)_exception_info())) { | |
| 423 // Nothing to do. | |
| 424 } | |
| 425 } | |
| 426 | |
| 427 // One less thread is executing | |
| 428 // When the VMThread gets here, the main thread may have already exited | |
| 429 // which frees the CodeHeap containing the Atomic::add code | |
| 430 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 431 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 432 } | |
| 433 | |
| 434 return 0; | |
| 435 } | |
| 436 | |
| 437 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
| 438 // Allocate the OSThread object | |
| 439 OSThread* osthread = new OSThread(NULL, NULL); | |
| 440 if (osthread == NULL) return NULL; | |
| 441 | |
| 442 // Initialize support for Java interrupts | |
| 443 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 444 if (interrupt_event == NULL) { | |
| 445 delete osthread; | |
| 446 return NULL; | |
| 447 } | |
| 448 osthread->set_interrupt_event(interrupt_event); | |
| 449 | |
| 450 // Store info on the Win32 thread into the OSThread | |
| 451 osthread->set_thread_handle(thread_handle); | |
| 452 osthread->set_thread_id(thread_id); | |
| 453 | |
| 454 if (UseNUMA) { | |
| 455 int lgrp_id = os::numa_get_group_id(); | |
| 456 if (lgrp_id != -1) { | |
| 457 thread->set_lgrp_id(lgrp_id); | |
| 458 } | |
| 459 } | |
| 460 | |
| 461 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 462 osthread->set_state(INITIALIZED); | |
| 463 | |
| 464 return osthread; | |
| 465 } | |
| 466 | |
| 467 | |
| 468 bool os::create_attached_thread(JavaThread* thread) { | |
| 469 #ifdef ASSERT | |
| 470 thread->verify_not_published(); | |
| 471 #endif | |
| 472 HANDLE thread_h; | |
| 473 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
| 474 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
| 475 fatal("DuplicateHandle failed\n"); | |
| 476 } | |
| 477 OSThread* osthread = create_os_thread(thread, thread_h, | |
| 478 (int)current_thread_id()); | |
| 479 if (osthread == NULL) { | |
| 480 return false; | |
| 481 } | |
| 482 | |
| 483 // Initial thread state is RUNNABLE | |
| 484 osthread->set_state(RUNNABLE); | |
| 485 | |
| 486 thread->set_osthread(osthread); | |
| 487 return true; | |
| 488 } | |
| 489 | |
| 490 bool os::create_main_thread(JavaThread* thread) { | |
| 491 #ifdef ASSERT | |
| 492 thread->verify_not_published(); | |
| 493 #endif | |
| 494 if (_starting_thread == NULL) { | |
| 495 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
| 496 if (_starting_thread == NULL) { | |
| 497 return false; | |
| 498 } | |
| 499 } | |
| 500 | |
| 501 // The primordial thread is runnable from the start) | |
| 502 _starting_thread->set_state(RUNNABLE); | |
| 503 | |
| 504 thread->set_osthread(_starting_thread); | |
| 505 return true; | |
| 506 } | |
| 507 | |
| 508 // Allocate and initialize a new OSThread | |
| 509 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 510 unsigned thread_id; | |
| 511 | |
| 512 // Allocate the OSThread object | |
| 513 OSThread* osthread = new OSThread(NULL, NULL); | |
| 514 if (osthread == NULL) { | |
| 515 return false; | |
| 516 } | |
| 517 | |
| 518 // Initialize support for Java interrupts | |
| 519 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 520 if (interrupt_event == NULL) { | |
| 521 delete osthread; | |
| 522 return NULL; | |
| 523 } | |
| 524 osthread->set_interrupt_event(interrupt_event); | |
| 525 osthread->set_interrupted(false); | |
| 526 | |
| 527 thread->set_osthread(osthread); | |
| 528 | |
| 529 if (stack_size == 0) { | |
| 530 switch (thr_type) { | |
| 531 case os::java_thread: | |
| 532 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 533 if (JavaThread::stack_size_at_create() > 0) | |
| 534 stack_size = JavaThread::stack_size_at_create(); | |
| 535 break; | |
| 536 case os::compiler_thread: | |
| 537 if (CompilerThreadStackSize > 0) { | |
| 538 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 539 break; | |
| 540 } // else fall through: | |
| 541 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 542 case os::vm_thread: | |
| 543 case os::pgc_thread: | |
| 544 case os::cgc_thread: | |
| 545 case os::watcher_thread: | |
| 546 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 547 break; | |
| 548 } | |
| 549 } | |
| 550 | |
| 551 // Create the Win32 thread | |
| 552 // | |
| 553 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
| 554 // does not specify stack size. Instead, it specifies the size of | |
| 555 // initially committed space. The stack size is determined by | |
| 556 // PE header in the executable. If the committed "stack_size" is larger | |
| 557 // than default value in the PE header, the stack is rounded up to the | |
| 558 // nearest multiple of 1MB. For example if the launcher has default | |
| 559 // stack size of 320k, specifying any size less than 320k does not | |
| 560 // affect the actual stack size at all, it only affects the initial | |
| 561 // commitment. On the other hand, specifying 'stack_size' larger than | |
| 562 // default value may cause significant increase in memory usage, because | |
| 563 // not only the stack space will be rounded up to MB, but also the | |
| 564 // entire space is committed upfront. | |
| 565 // | |
| 566 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
| 567 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
| 568 // are not supposed to call CreateThread() directly according to MSDN | |
| 569 // document because JVM uses C runtime library. The good news is that the | |
| 570 // flag appears to work with _beginthredex() as well. | |
| 571 | |
| 572 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
| 573 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
| 574 #endif | |
| 575 | |
| 576 HANDLE thread_handle = | |
| 577 (HANDLE)_beginthreadex(NULL, | |
| 578 (unsigned)stack_size, | |
| 579 (unsigned (__stdcall *)(void*)) java_start, | |
| 580 thread, | |
| 581 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
| 582 &thread_id); | |
| 583 if (thread_handle == NULL) { | |
| 584 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
| 585 // without the flag. | |
| 586 thread_handle = | |
| 587 (HANDLE)_beginthreadex(NULL, | |
| 588 (unsigned)stack_size, | |
| 589 (unsigned (__stdcall *)(void*)) java_start, | |
| 590 thread, | |
| 591 CREATE_SUSPENDED, | |
| 592 &thread_id); | |
| 593 } | |
| 594 if (thread_handle == NULL) { | |
| 595 // Need to clean up stuff we've allocated so far | |
| 596 CloseHandle(osthread->interrupt_event()); | |
| 597 thread->set_osthread(NULL); | |
| 598 delete osthread; | |
| 599 return NULL; | |
| 600 } | |
| 601 | |
| 602 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 603 | |
| 604 // Store info on the Win32 thread into the OSThread | |
| 605 osthread->set_thread_handle(thread_handle); | |
| 606 osthread->set_thread_id(thread_id); | |
| 607 | |
| 608 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 609 osthread->set_state(INITIALIZED); | |
| 610 | |
| 611 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 612 return true; | |
| 613 } | |
| 614 | |
| 615 | |
| 616 // Free Win32 resources related to the OSThread | |
| 617 void os::free_thread(OSThread* osthread) { | |
| 618 assert(osthread != NULL, "osthread not set"); | |
| 619 CloseHandle(osthread->thread_handle()); | |
| 620 CloseHandle(osthread->interrupt_event()); | |
| 621 delete osthread; | |
| 622 } | |
| 623 | |
| 624 | |
| 625 static int has_performance_count = 0; | |
| 626 static jlong first_filetime; | |
| 627 static jlong initial_performance_count; | |
| 628 static jlong performance_frequency; | |
| 629 | |
| 630 | |
| 631 jlong as_long(LARGE_INTEGER x) { | |
| 632 jlong result = 0; // initialization to avoid warning | |
| 633 set_high(&result, x.HighPart); | |
| 634 set_low(&result, x.LowPart); | |
| 635 return result; | |
| 636 } | |
| 637 | |
| 638 | |
| 639 jlong os::elapsed_counter() { | |
| 640 LARGE_INTEGER count; | |
| 641 if (has_performance_count) { | |
| 642 QueryPerformanceCounter(&count); | |
| 643 return as_long(count) - initial_performance_count; | |
| 644 } else { | |
| 645 FILETIME wt; | |
| 646 GetSystemTimeAsFileTime(&wt); | |
| 647 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
| 648 } | |
| 649 } | |
| 650 | |
| 651 | |
| 652 jlong os::elapsed_frequency() { | |
| 653 if (has_performance_count) { | |
| 654 return performance_frequency; | |
| 655 } else { | |
| 656 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
| 657 return 10000000; | |
| 658 } | |
| 659 } | |
| 660 | |
| 661 | |
| 662 julong os::available_memory() { | |
| 663 return win32::available_memory(); | |
| 664 } | |
| 665 | |
| 666 julong os::win32::available_memory() { | |
|
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667 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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668 // value if total memory is larger than 4GB |
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669 MEMORYSTATUSEX ms; |
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670 ms.dwLength = sizeof(ms); |
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671 GlobalMemoryStatusEx(&ms); |
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672 |
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673 return (julong)ms.ullAvailPhys; |
| 0 | 674 } |
| 675 | |
| 676 julong os::physical_memory() { | |
| 677 return win32::physical_memory(); | |
| 678 } | |
| 679 | |
| 680 julong os::allocatable_physical_memory(julong size) { | |
|
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681 #ifdef _LP64 |
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682 return size; |
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683 #else |
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684 // Limit to 1400m because of the 2gb address space wall |
| 0 | 685 return MIN2(size, (julong)1400*M); |
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686 #endif |
| 0 | 687 } |
| 688 | |
| 689 // VC6 lacks DWORD_PTR | |
| 690 #if _MSC_VER < 1300 | |
| 691 typedef UINT_PTR DWORD_PTR; | |
| 692 #endif | |
| 693 | |
| 694 int os::active_processor_count() { | |
| 695 DWORD_PTR lpProcessAffinityMask = 0; | |
| 696 DWORD_PTR lpSystemAffinityMask = 0; | |
| 697 int proc_count = processor_count(); | |
| 698 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
| 699 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
| 700 // Nof active processors is number of bits in process affinity mask | |
| 701 int bitcount = 0; | |
| 702 while (lpProcessAffinityMask != 0) { | |
| 703 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
| 704 bitcount++; | |
| 705 } | |
| 706 return bitcount; | |
| 707 } else { | |
| 708 return proc_count; | |
| 709 } | |
| 710 } | |
| 711 | |
| 4006 | 712 void os::set_native_thread_name(const char *name) { |
| 713 // Not yet implemented. | |
| 714 return; | |
| 715 } | |
| 716 | |
| 0 | 717 bool os::distribute_processes(uint length, uint* distribution) { |
| 718 // Not yet implemented. | |
| 719 return false; | |
| 720 } | |
| 721 | |
| 722 bool os::bind_to_processor(uint processor_id) { | |
| 723 // Not yet implemented. | |
| 724 return false; | |
| 725 } | |
| 726 | |
| 727 static void initialize_performance_counter() { | |
| 728 LARGE_INTEGER count; | |
| 729 if (QueryPerformanceFrequency(&count)) { | |
| 730 has_performance_count = 1; | |
| 731 performance_frequency = as_long(count); | |
| 732 QueryPerformanceCounter(&count); | |
| 733 initial_performance_count = as_long(count); | |
| 734 } else { | |
| 735 has_performance_count = 0; | |
| 736 FILETIME wt; | |
| 737 GetSystemTimeAsFileTime(&wt); | |
| 738 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 739 } | |
| 740 } | |
| 741 | |
| 742 | |
| 743 double os::elapsedTime() { | |
| 744 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
| 745 } | |
| 746 | |
| 747 | |
| 748 // Windows format: | |
| 749 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
| 750 // Java format: | |
| 751 // Java standards require the number of milliseconds since 1/1/1970 | |
| 752 | |
| 753 // Constant offset - calculated using offset() | |
| 754 static jlong _offset = 116444736000000000; | |
| 755 // Fake time counter for reproducible results when debugging | |
| 756 static jlong fake_time = 0; | |
| 757 | |
| 758 #ifdef ASSERT | |
| 759 // Just to be safe, recalculate the offset in debug mode | |
| 760 static jlong _calculated_offset = 0; | |
| 761 static int _has_calculated_offset = 0; | |
| 762 | |
| 763 jlong offset() { | |
| 764 if (_has_calculated_offset) return _calculated_offset; | |
| 765 SYSTEMTIME java_origin; | |
| 766 java_origin.wYear = 1970; | |
| 767 java_origin.wMonth = 1; | |
| 768 java_origin.wDayOfWeek = 0; // ignored | |
| 769 java_origin.wDay = 1; | |
| 770 java_origin.wHour = 0; | |
| 771 java_origin.wMinute = 0; | |
| 772 java_origin.wSecond = 0; | |
| 773 java_origin.wMilliseconds = 0; | |
| 774 FILETIME jot; | |
| 775 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
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776 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
| 0 | 777 } |
| 778 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
| 779 _has_calculated_offset = 1; | |
| 780 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
| 781 return _calculated_offset; | |
| 782 } | |
| 783 #else | |
| 784 jlong offset() { | |
| 785 return _offset; | |
| 786 } | |
| 787 #endif | |
| 788 | |
| 789 jlong windows_to_java_time(FILETIME wt) { | |
| 790 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 791 return (a - offset()) / 10000; | |
| 792 } | |
| 793 | |
| 794 FILETIME java_to_windows_time(jlong l) { | |
| 795 jlong a = (l * 10000) + offset(); | |
| 796 FILETIME result; | |
| 797 result.dwHighDateTime = high(a); | |
| 798 result.dwLowDateTime = low(a); | |
| 799 return result; | |
| 800 } | |
| 801 | |
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802 // For now, we say that Windows does not support vtime. I have no idea |
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803 // whether it can actually be made to (DLD, 9/13/05). |
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804 |
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805 bool os::supports_vtime() { return false; } |
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806 bool os::enable_vtime() { return false; } |
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807 bool os::vtime_enabled() { return false; } |
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808 double os::elapsedVTime() { |
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809 // better than nothing, but not much |
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810 return elapsedTime(); |
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811 } |
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812 |
| 0 | 813 jlong os::javaTimeMillis() { |
| 814 if (UseFakeTimers) { | |
| 815 return fake_time++; | |
| 816 } else { | |
| 61 | 817 FILETIME wt; |
| 818 GetSystemTimeAsFileTime(&wt); | |
| 819 return windows_to_java_time(wt); | |
| 0 | 820 } |
| 821 } | |
| 822 | |
| 823 jlong os::javaTimeNanos() { | |
| 824 if (!has_performance_count) { | |
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825 return javaTimeMillis() * NANOSECS_PER_MILLISEC; // the best we can do. |
| 0 | 826 } else { |
| 827 LARGE_INTEGER current_count; | |
| 828 QueryPerformanceCounter(¤t_count); | |
| 829 double current = as_long(current_count); | |
| 830 double freq = performance_frequency; | |
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831 jlong time = (jlong)((current/freq) * NANOSECS_PER_SEC); |
| 0 | 832 return time; |
| 833 } | |
| 834 } | |
| 835 | |
| 836 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
| 837 if (!has_performance_count) { | |
| 838 // javaTimeMillis() doesn't have much percision, | |
| 839 // but it is not going to wrap -- so all 64 bits | |
| 840 info_ptr->max_value = ALL_64_BITS; | |
| 841 | |
| 842 // this is a wall clock timer, so may skip | |
| 843 info_ptr->may_skip_backward = true; | |
| 844 info_ptr->may_skip_forward = true; | |
| 845 } else { | |
| 846 jlong freq = performance_frequency; | |
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847 if (freq < NANOSECS_PER_SEC) { |
| 0 | 848 // the performance counter is 64 bits and we will |
| 849 // be multiplying it -- so no wrap in 64 bits | |
| 850 info_ptr->max_value = ALL_64_BITS; | |
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851 } else if (freq > NANOSECS_PER_SEC) { |
| 0 | 852 // use the max value the counter can reach to |
| 853 // determine the max value which could be returned | |
| 854 julong max_counter = (julong)ALL_64_BITS; | |
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855 info_ptr->max_value = (jlong)(max_counter / (freq / NANOSECS_PER_SEC)); |
| 0 | 856 } else { |
| 857 // the performance counter is 64 bits and we will | |
| 858 // be using it directly -- so no wrap in 64 bits | |
| 859 info_ptr->max_value = ALL_64_BITS; | |
| 860 } | |
| 861 | |
| 862 // using a counter, so no skipping | |
| 863 info_ptr->may_skip_backward = false; | |
| 864 info_ptr->may_skip_forward = false; | |
| 865 } | |
| 866 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
| 867 } | |
| 868 | |
| 869 char* os::local_time_string(char *buf, size_t buflen) { | |
| 870 SYSTEMTIME st; | |
| 871 GetLocalTime(&st); | |
| 872 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
| 873 st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); | |
| 874 return buf; | |
| 875 } | |
| 876 | |
| 877 bool os::getTimesSecs(double* process_real_time, | |
| 878 double* process_user_time, | |
| 879 double* process_system_time) { | |
| 880 HANDLE h_process = GetCurrentProcess(); | |
| 881 FILETIME create_time, exit_time, kernel_time, user_time; | |
| 882 BOOL result = GetProcessTimes(h_process, | |
| 883 &create_time, | |
| 884 &exit_time, | |
| 885 &kernel_time, | |
| 886 &user_time); | |
| 887 if (result != 0) { | |
| 888 FILETIME wt; | |
| 889 GetSystemTimeAsFileTime(&wt); | |
| 890 jlong rtc_millis = windows_to_java_time(wt); | |
| 891 jlong user_millis = windows_to_java_time(user_time); | |
| 892 jlong system_millis = windows_to_java_time(kernel_time); | |
| 893 *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS); | |
| 894 *process_user_time = ((double) user_millis) / ((double) MILLIUNITS); | |
| 895 *process_system_time = ((double) system_millis) / ((double) MILLIUNITS); | |
| 896 return true; | |
| 897 } else { | |
| 898 return false; | |
| 899 } | |
| 900 } | |
| 901 | |
| 902 void os::shutdown() { | |
| 903 | |
| 904 // allow PerfMemory to attempt cleanup of any persistent resources | |
| 905 perfMemory_exit(); | |
| 906 | |
| 907 // flush buffered output, finish log files | |
| 908 ostream_abort(); | |
| 909 | |
| 910 // Check for abort hook | |
| 911 abort_hook_t abort_hook = Arguments::abort_hook(); | |
| 912 if (abort_hook != NULL) { | |
| 913 abort_hook(); | |
| 914 } | |
| 915 } | |
| 916 | |
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917 |
|
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918 static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
|
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919 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
|
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920 |
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921 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { |
|
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922 HINSTANCE dbghelp; |
|
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923 EXCEPTION_POINTERS ep; |
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924 MINIDUMP_EXCEPTION_INFORMATION mei; |
|
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925 MINIDUMP_EXCEPTION_INFORMATION* pmei; |
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926 |
|
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927 HANDLE hProcess = GetCurrentProcess(); |
|
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928 DWORD processId = GetCurrentProcessId(); |
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929 HANDLE dumpFile; |
|
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930 MINIDUMP_TYPE dumpType; |
|
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931 static const char* cwd; |
|
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932 |
|
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933 // If running on a client version of Windows and user has not explicitly enabled dumping |
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934 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) { |
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935 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false); |
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936 return; |
|
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937 // If running on a server version of Windows and user has explictly disabled dumping |
|
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938 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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939 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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940 return; |
|
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|
941 } |
|
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|
942 |
|
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943 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0); |
|
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944 |
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945 if (dbghelp == NULL) { |
|
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946 VMError::report_coredump_status("Failed to load dbghelp.dll", false); |
|
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947 return; |
|
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|
948 } |
|
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949 |
|
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950 _MiniDumpWriteDump = CAST_TO_FN_PTR( |
|
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951 BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
|
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952 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION), |
|
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953 GetProcAddress(dbghelp, "MiniDumpWriteDump")); |
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954 |
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955 if (_MiniDumpWriteDump == NULL) { |
|
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956 VMError::report_coredump_status("Failed to find MiniDumpWriteDump() in module dbghelp.dll", false); |
|
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957 return; |
|
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|
958 } |
|
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959 |
|
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960 dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
|
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961 |
|
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962 // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
|
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963 // API_VERSION_NUMBER 11 or higher contains the ones we want though |
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964 #if API_VERSION_NUMBER >= 11 |
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965 dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
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966 MiniDumpWithUnloadedModules); |
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967 #endif |
|
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968 |
|
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969 cwd = get_current_directory(NULL, 0); |
|
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970 jio_snprintf(buffer, bufferSize, "%s\\hs_err_pid%u.mdmp",cwd, current_process_id()); |
|
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971 dumpFile = CreateFile(buffer, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
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972 |
|
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973 if (dumpFile == INVALID_HANDLE_VALUE) { |
|
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974 VMError::report_coredump_status("Failed to create file for dumping", false); |
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975 return; |
|
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|
976 } |
|
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977 if (exceptionRecord != NULL && contextRecord != NULL) { |
|
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978 ep.ContextRecord = (PCONTEXT) contextRecord; |
|
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979 ep.ExceptionRecord = (PEXCEPTION_RECORD) exceptionRecord; |
|
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980 |
|
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981 mei.ThreadId = GetCurrentThreadId(); |
|
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982 mei.ExceptionPointers = &ep; |
|
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983 pmei = &mei; |
|
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|
984 } else { |
|
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|
985 pmei = NULL; |
|
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|
986 } |
|
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|
987 |
|
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|
988 |
|
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|
989 // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
|
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990 // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
|
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991 if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == false && |
|
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992 _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == false) { |
|
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993 VMError::report_coredump_status("Call to MiniDumpWriteDump() failed", false); |
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994 } else { |
|
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|
995 VMError::report_coredump_status(buffer, true); |
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|
996 } |
|
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|
997 |
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998 CloseHandle(dumpFile); |
|
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|
999 } |
|
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|
1000 |
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1001 |
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1002 |
| 0 | 1003 void os::abort(bool dump_core) |
| 1004 { | |
| 1005 os::shutdown(); | |
| 1006 // no core dump on Windows | |
| 1007 ::exit(1); | |
| 1008 } | |
| 1009 | |
| 1010 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 1011 void os::die() { | |
| 1012 _exit(-1); | |
| 1013 } | |
| 1014 | |
| 1015 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
| 1016 // * dirent_md.c 1.15 00/02/02 | |
| 1017 // | |
| 1018 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
| 1019 | |
| 1020 /* Caller must have already run dirname through JVM_NativePath, which removes | |
| 1021 duplicate slashes and converts all instances of '/' into '\\'. */ | |
| 1022 | |
| 1023 DIR * | |
| 1024 os::opendir(const char *dirname) | |
| 1025 { | |
| 1026 assert(dirname != NULL, "just checking"); // hotspot change | |
| 1027 DIR *dirp = (DIR *)malloc(sizeof(DIR)); | |
| 1028 DWORD fattr; // hotspot change | |
| 1029 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
| 1030 | |
| 1031 if (dirp == 0) { | |
| 1032 errno = ENOMEM; | |
| 1033 return 0; | |
| 1034 } | |
| 1035 | |
| 1036 /* | |
| 1037 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
| 1038 * as a directory in FindFirstFile(). We detect this case here and | |
| 1039 * prepend the current drive name. | |
| 1040 */ | |
| 1041 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
| 1042 alt_dirname[0] = _getdrive() + 'A' - 1; | |
| 1043 alt_dirname[1] = ':'; | |
| 1044 alt_dirname[2] = '\\'; | |
| 1045 alt_dirname[3] = '\0'; | |
| 1046 dirname = alt_dirname; | |
| 1047 } | |
| 1048 | |
| 1049 dirp->path = (char *)malloc(strlen(dirname) + 5); | |
| 1050 if (dirp->path == 0) { | |
| 1051 free(dirp); | |
| 1052 errno = ENOMEM; | |
| 1053 return 0; | |
| 1054 } | |
| 1055 strcpy(dirp->path, dirname); | |
| 1056 | |
| 1057 fattr = GetFileAttributes(dirp->path); | |
| 1058 if (fattr == 0xffffffff) { | |
| 1059 free(dirp->path); | |
| 1060 free(dirp); | |
| 1061 errno = ENOENT; | |
| 1062 return 0; | |
| 1063 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
| 1064 free(dirp->path); | |
| 1065 free(dirp); | |
| 1066 errno = ENOTDIR; | |
| 1067 return 0; | |
| 1068 } | |
| 1069 | |
| 1070 /* Append "*.*", or possibly "\\*.*", to path */ | |
| 1071 if (dirp->path[1] == ':' | |
| 1072 && (dirp->path[2] == '\0' | |
| 1073 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
| 1074 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
| 1075 strcat(dirp->path, "*.*"); | |
| 1076 } else { | |
| 1077 strcat(dirp->path, "\\*.*"); | |
| 1078 } | |
| 1079 | |
| 1080 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
| 1081 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1082 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
| 1083 free(dirp->path); | |
| 1084 free(dirp); | |
| 1085 errno = EACCES; | |
| 1086 return 0; | |
| 1087 } | |
| 1088 } | |
| 1089 return dirp; | |
| 1090 } | |
| 1091 | |
| 1092 /* parameter dbuf unused on Windows */ | |
| 1093 | |
| 1094 struct dirent * | |
| 1095 os::readdir(DIR *dirp, dirent *dbuf) | |
| 1096 { | |
| 1097 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1098 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1099 return 0; | |
| 1100 } | |
| 1101 | |
| 1102 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
| 1103 | |
| 1104 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
| 1105 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
| 1106 errno = EBADF; | |
| 1107 return 0; | |
| 1108 } | |
| 1109 FindClose(dirp->handle); | |
| 1110 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1111 } | |
| 1112 | |
| 1113 return &dirp->dirent; | |
| 1114 } | |
| 1115 | |
| 1116 int | |
| 1117 os::closedir(DIR *dirp) | |
| 1118 { | |
| 1119 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1120 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
| 1121 if (!FindClose(dirp->handle)) { | |
| 1122 errno = EBADF; | |
| 1123 return -1; | |
| 1124 } | |
| 1125 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1126 } | |
| 1127 free(dirp->path); | |
| 1128 free(dirp); | |
| 1129 return 0; | |
| 1130 } | |
| 1131 | |
|
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1132 // This must be hard coded because it's the system's temporary |
|
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1133 // directory not the java application's temp directory, ala java.io.tmpdir. |
|
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1134 const char* os::get_temp_directory() { |
|
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1135 static char path_buf[MAX_PATH]; |
|
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1136 if (GetTempPath(MAX_PATH, path_buf)>0) |
|
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1137 return path_buf; |
|
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1138 else{ |
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1139 path_buf[0]='\0'; |
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1140 return path_buf; |
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1141 } |
| 0 | 1142 } |
| 1143 | |
| 691 | 1144 static bool file_exists(const char* filename) { |
| 1145 if (filename == NULL || strlen(filename) == 0) { | |
| 1146 return false; | |
| 1147 } | |
| 1148 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
| 1149 } | |
| 1150 | |
| 1151 void os::dll_build_name(char *buffer, size_t buflen, | |
| 1152 const char* pname, const char* fname) { | |
| 1153 const size_t pnamelen = pname ? strlen(pname) : 0; | |
| 1154 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
| 1155 | |
| 1156 // Quietly truncates on buffer overflow. Should be an error. | |
| 1157 if (pnamelen + strlen(fname) + 10 > buflen) { | |
| 1158 *buffer = '\0'; | |
| 1159 return; | |
| 1160 } | |
| 1161 | |
| 1162 if (pnamelen == 0) { | |
| 1163 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
| 1164 } else if (c == ':' || c == '\\') { | |
| 1165 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
| 1166 } else if (strchr(pname, *os::path_separator()) != NULL) { | |
| 1167 int n; | |
| 1168 char** pelements = split_path(pname, &n); | |
| 1169 for (int i = 0 ; i < n ; i++) { | |
| 1170 char* path = pelements[i]; | |
| 1171 // Really shouldn't be NULL, but check can't hurt | |
| 1172 size_t plen = (path == NULL) ? 0 : strlen(path); | |
| 1173 if (plen == 0) { | |
| 1174 continue; // skip the empty path values | |
| 1175 } | |
| 1176 const char lastchar = path[plen - 1]; | |
| 1177 if (lastchar == ':' || lastchar == '\\') { | |
| 1178 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
| 1179 } else { | |
| 1180 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
| 1181 } | |
| 1182 if (file_exists(buffer)) { | |
| 1183 break; | |
| 1184 } | |
| 242 | 1185 } |
| 691 | 1186 // release the storage |
| 1187 for (int i = 0 ; i < n ; i++) { | |
| 1188 if (pelements[i] != NULL) { | |
| 1189 FREE_C_HEAP_ARRAY(char, pelements[i]); | |
| 1190 } | |
| 242 | 1191 } |
| 691 | 1192 if (pelements != NULL) { |
| 1193 FREE_C_HEAP_ARRAY(char*, pelements); | |
| 1194 } | |
| 1195 } else { | |
| 1196 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
| 1197 } | |
| 242 | 1198 } |
| 1199 | |
| 0 | 1200 // Needs to be in os specific directory because windows requires another |
| 1201 // header file <direct.h> | |
| 1202 const char* os::get_current_directory(char *buf, int buflen) { | |
| 1203 return _getcwd(buf, buflen); | |
| 1204 } | |
| 1205 | |
| 1206 //----------------------------------------------------------- | |
| 1207 // Helper functions for fatal error handler | |
| 1208 #ifdef _WIN64 | |
| 1209 // Helper routine which returns true if address in | |
| 1210 // within the NTDLL address space. | |
| 1211 // | |
| 1212 static bool _addr_in_ntdll( address addr ) | |
| 1213 { | |
| 1214 HMODULE hmod; | |
| 1215 MODULEINFO minfo; | |
| 1216 | |
| 1217 hmod = GetModuleHandle("NTDLL.DLL"); | |
| 1218 if ( hmod == NULL ) return false; | |
|
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1219 if ( !os::PSApiDll::GetModuleInformation( GetCurrentProcess(), hmod, |
| 0 | 1220 &minfo, sizeof(MODULEINFO)) ) |
| 1221 return false; | |
| 1222 | |
| 1223 if ( (addr >= minfo.lpBaseOfDll) && | |
| 1224 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
| 1225 return true; | |
| 1226 else | |
| 1227 return false; | |
| 1228 } | |
| 1229 #endif | |
| 1230 | |
| 1231 | |
| 1232 // Enumerate all modules for a given process ID | |
| 1233 // | |
| 1234 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
| 1235 // different API for doing this. We use PSAPI.DLL on NT based | |
| 1236 // Windows and ToolHelp on 95/98/Me. | |
| 1237 | |
| 1238 // Callback function that is called by enumerate_modules() on | |
| 1239 // every DLL module. | |
| 1240 // Input parameters: | |
| 1241 // int pid, | |
| 1242 // char* module_file_name, | |
| 1243 // address module_base_addr, | |
| 1244 // unsigned module_size, | |
| 1245 // void* param | |
| 1246 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
| 1247 | |
| 1248 // enumerate_modules for Windows NT, using PSAPI | |
| 1249 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
| 1250 { | |
| 1251 HANDLE hProcess ; | |
| 1252 | |
| 1253 # define MAX_NUM_MODULES 128 | |
| 1254 HMODULE modules[MAX_NUM_MODULES]; | |
| 1255 static char filename[ MAX_PATH ]; | |
| 1256 int result = 0; | |
| 1257 | |
|
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1258 if (!os::PSApiDll::PSApiAvailable()) { |
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1259 return 0; |
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1260 } |
| 0 | 1261 |
| 1262 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
| 1263 FALSE, pid ) ; | |
| 1264 if (hProcess == NULL) return 0; | |
| 1265 | |
| 1266 DWORD size_needed; | |
|
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1267 if (!os::PSApiDll::EnumProcessModules(hProcess, modules, |
| 0 | 1268 sizeof(modules), &size_needed)) { |
| 1269 CloseHandle( hProcess ); | |
| 1270 return 0; | |
| 1271 } | |
| 1272 | |
| 1273 // number of modules that are currently loaded | |
| 1274 int num_modules = size_needed / sizeof(HMODULE); | |
| 1275 | |
| 1276 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
| 1277 // Get Full pathname: | |
|
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1278 if(!os::PSApiDll::GetModuleFileNameEx(hProcess, modules[i], |
| 0 | 1279 filename, sizeof(filename))) { |
| 1280 filename[0] = '\0'; | |
| 1281 } | |
| 1282 | |
| 1283 MODULEINFO modinfo; | |
|
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1284 if (!os::PSApiDll::GetModuleInformation(hProcess, modules[i], |
| 0 | 1285 &modinfo, sizeof(modinfo))) { |
| 1286 modinfo.lpBaseOfDll = NULL; | |
| 1287 modinfo.SizeOfImage = 0; | |
| 1288 } | |
| 1289 | |
| 1290 // Invoke callback function | |
| 1291 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
| 1292 modinfo.SizeOfImage, param); | |
| 1293 if (result) break; | |
| 1294 } | |
| 1295 | |
| 1296 CloseHandle( hProcess ) ; | |
| 1297 return result; | |
| 1298 } | |
| 1299 | |
| 1300 | |
| 1301 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
| 1302 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
| 1303 { | |
| 1304 HANDLE hSnapShot ; | |
| 1305 static MODULEENTRY32 modentry ; | |
| 1306 int result = 0; | |
| 1307 | |
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1308 if (!os::Kernel32Dll::HelpToolsAvailable()) { |
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1309 return 0; |
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1310 } |
| 0 | 1311 |
| 1312 // Get a handle to a Toolhelp snapshot of the system | |
|
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1313 hSnapShot = os::Kernel32Dll::CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; |
| 0 | 1314 if( hSnapShot == INVALID_HANDLE_VALUE ) { |
| 1315 return FALSE ; | |
| 1316 } | |
| 1317 | |
| 1318 // iterate through all modules | |
| 1319 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1320 bool not_done = os::Kernel32Dll::Module32First( hSnapShot, &modentry ) != 0; |
| 0 | 1321 |
| 1322 while( not_done ) { | |
| 1323 // invoke the callback | |
| 1324 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
| 1325 modentry.modBaseSize, param); | |
| 1326 if (result) break; | |
| 1327 | |
| 1328 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1329 not_done = os::Kernel32Dll::Module32Next( hSnapShot, &modentry ) != 0; |
| 0 | 1330 } |
| 1331 | |
| 1332 CloseHandle(hSnapShot); | |
| 1333 return result; | |
| 1334 } | |
| 1335 | |
| 1336 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
| 1337 { | |
| 1338 // Get current process ID if caller doesn't provide it. | |
| 1339 if (!pid) pid = os::current_process_id(); | |
| 1340 | |
| 1341 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
| 1342 else return _enumerate_modules_windows(pid, func, param); | |
| 1343 } | |
| 1344 | |
| 1345 struct _modinfo { | |
| 1346 address addr; | |
| 1347 char* full_path; // point to a char buffer | |
| 1348 int buflen; // size of the buffer | |
| 1349 address base_addr; | |
| 1350 }; | |
| 1351 | |
| 1352 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
| 1353 unsigned size, void * param) { | |
| 1354 struct _modinfo *pmod = (struct _modinfo *)param; | |
| 1355 if (!pmod) return -1; | |
| 1356 | |
| 1357 if (base_addr <= pmod->addr && | |
| 1358 base_addr+size > pmod->addr) { | |
| 1359 // if a buffer is provided, copy path name to the buffer | |
| 1360 if (pmod->full_path) { | |
| 1361 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
| 1362 } | |
| 1363 pmod->base_addr = base_addr; | |
| 1364 return 1; | |
| 1365 } | |
| 1366 return 0; | |
| 1367 } | |
| 1368 | |
| 1369 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1370 int buflen, int* offset) { | |
| 1371 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always | |
| 1372 // return the full path to the DLL file, sometimes it returns path | |
| 1373 // to the corresponding PDB file (debug info); sometimes it only | |
| 1374 // returns partial path, which makes life painful. | |
| 1375 | |
| 1376 struct _modinfo mi; | |
| 1377 mi.addr = addr; | |
| 1378 mi.full_path = buf; | |
| 1379 mi.buflen = buflen; | |
| 1380 int pid = os::current_process_id(); | |
| 1381 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { | |
| 1382 // buf already contains path name | |
| 1383 if (offset) *offset = addr - mi.base_addr; | |
| 1384 return true; | |
| 1385 } else { | |
| 1386 if (buf) buf[0] = '\0'; | |
| 1387 if (offset) *offset = -1; | |
| 1388 return false; | |
| 1389 } | |
| 1390 } | |
| 1391 | |
| 1392 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1393 int buflen, int *offset) { | |
| 4803 | 1394 if (Decoder::decode(addr, buf, buflen, offset)) { |
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1395 return true; |
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1396 } |
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1397 if (offset != NULL) *offset = -1; |
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1398 if (buf != NULL) buf[0] = '\0'; |
| 0 | 1399 return false; |
| 1400 } | |
| 1401 | |
| 1402 // save the start and end address of jvm.dll into param[0] and param[1] | |
| 1403 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
| 1404 unsigned size, void * param) { | |
| 1405 if (!param) return -1; | |
| 1406 | |
| 1407 if (base_addr <= (address)_locate_jvm_dll && | |
| 1408 base_addr+size > (address)_locate_jvm_dll) { | |
| 1409 ((address*)param)[0] = base_addr; | |
| 1410 ((address*)param)[1] = base_addr + size; | |
| 1411 return 1; | |
| 1412 } | |
| 1413 return 0; | |
| 1414 } | |
| 1415 | |
| 1416 address vm_lib_location[2]; // start and end address of jvm.dll | |
| 1417 | |
| 1418 // check if addr is inside jvm.dll | |
| 1419 bool os::address_is_in_vm(address addr) { | |
| 1420 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
| 1421 int pid = os::current_process_id(); | |
| 1422 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
| 1423 assert(false, "Can't find jvm module."); | |
| 1424 return false; | |
| 1425 } | |
| 1426 } | |
| 1427 | |
| 1428 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
| 1429 } | |
| 1430 | |
| 1431 // print module info; param is outputStream* | |
| 1432 static int _print_module(int pid, char* fname, address base, | |
| 1433 unsigned size, void* param) { | |
| 1434 if (!param) return -1; | |
| 1435 | |
| 1436 outputStream* st = (outputStream*)param; | |
| 1437 | |
| 1438 address end_addr = base + size; | |
| 1439 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
| 1440 return 0; | |
| 1441 } | |
| 1442 | |
| 1443 // Loads .dll/.so and | |
| 1444 // in case of error it checks if .dll/.so was built for the | |
| 1445 // same architecture as Hotspot is running on | |
| 1446 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
| 1447 { | |
| 1448 void * result = LoadLibrary(name); | |
| 1449 if (result != NULL) | |
| 1450 { | |
| 1451 return result; | |
| 1452 } | |
| 1453 | |
|
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1454 DWORD errcode = GetLastError(); |
| 0 | 1455 if (errcode == ERROR_MOD_NOT_FOUND) { |
| 1456 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
| 1457 ebuf[ebuflen-1]='\0'; | |
| 1458 return NULL; | |
| 1459 } | |
| 1460 | |
| 1461 // Parsing dll below | |
| 1462 // If we can read dll-info and find that dll was built | |
| 1463 // for an architecture other than Hotspot is running in | |
| 1464 // - then print to buffer "DLL was built for a different architecture" | |
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1465 // else call os::lasterror to obtain system error message |
| 0 | 1466 |
| 1467 // Read system error message into ebuf | |
| 1468 // It may or may not be overwritten below (in the for loop and just above) | |
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1469 lasterror(ebuf, (size_t) ebuflen); |
| 0 | 1470 ebuf[ebuflen-1]='\0'; |
| 1471 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
| 1472 if (file_descriptor<0) | |
| 1473 { | |
| 1474 return NULL; | |
| 1475 } | |
| 1476 | |
| 1477 uint32_t signature_offset; | |
| 1478 uint16_t lib_arch=0; | |
| 1479 bool failed_to_get_lib_arch= | |
| 1480 ( | |
| 1481 //Go to position 3c in the dll | |
| 1482 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
| 1483 || | |
| 1484 // Read loacation of signature | |
| 1485 (sizeof(signature_offset)!= | |
| 1486 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
| 1487 || | |
| 1488 //Go to COFF File Header in dll | |
| 1489 //that is located after"signature" (4 bytes long) | |
| 1490 (os::seek_to_file_offset(file_descriptor, | |
| 1491 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
| 1492 || | |
| 1493 //Read field that contains code of architecture | |
| 1494 // that dll was build for | |
| 1495 (sizeof(lib_arch)!= | |
| 1496 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
| 1497 ); | |
| 1498 | |
| 1499 ::close(file_descriptor); | |
| 1500 if (failed_to_get_lib_arch) | |
| 1501 { | |
|
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1502 // file i/o error - report os::lasterror(...) msg |
| 0 | 1503 return NULL; |
| 1504 } | |
| 1505 | |
| 1506 typedef struct | |
| 1507 { | |
| 1508 uint16_t arch_code; | |
| 1509 char* arch_name; | |
| 1510 } arch_t; | |
| 1511 | |
| 1512 static const arch_t arch_array[]={ | |
| 1513 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
| 1514 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
| 1515 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
| 1516 }; | |
| 1517 #if (defined _M_IA64) | |
| 1518 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
| 1519 #elif (defined _M_AMD64) | |
| 1520 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
| 1521 #elif (defined _M_IX86) | |
| 1522 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
| 1523 #else | |
| 1524 #error Method os::dll_load requires that one of following \ | |
| 1525 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
| 1526 #endif | |
| 1527 | |
| 1528 | |
| 1529 // Obtain a string for printf operation | |
| 1530 // lib_arch_str shall contain string what platform this .dll was built for | |
| 1531 // running_arch_str shall string contain what platform Hotspot was built for | |
| 1532 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
| 1533 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
| 1534 { | |
| 1535 if (lib_arch==arch_array[i].arch_code) | |
| 1536 lib_arch_str=arch_array[i].arch_name; | |
| 1537 if (running_arch==arch_array[i].arch_code) | |
| 1538 running_arch_str=arch_array[i].arch_name; | |
| 1539 } | |
| 1540 | |
| 1541 assert(running_arch_str, | |
| 1542 "Didn't find runing architecture code in arch_array"); | |
| 1543 | |
| 1544 // If the architure is right | |
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1545 // but some other error took place - report os::lasterror(...) msg |
| 0 | 1546 if (lib_arch == running_arch) |
| 1547 { | |
| 1548 return NULL; | |
| 1549 } | |
| 1550 | |
| 1551 if (lib_arch_str!=NULL) | |
| 1552 { | |
| 1553 ::_snprintf(ebuf, ebuflen-1, | |
| 1554 "Can't load %s-bit .dll on a %s-bit platform", | |
| 1555 lib_arch_str,running_arch_str); | |
| 1556 } | |
| 1557 else | |
| 1558 { | |
| 1559 // don't know what architecture this dll was build for | |
| 1560 ::_snprintf(ebuf, ebuflen-1, | |
| 1561 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
| 1562 lib_arch,running_arch_str); | |
| 1563 } | |
| 1564 | |
| 1565 return NULL; | |
| 1566 } | |
| 1567 | |
| 1568 | |
| 1569 void os::print_dll_info(outputStream *st) { | |
| 1570 int pid = os::current_process_id(); | |
| 1571 st->print_cr("Dynamic libraries:"); | |
| 1572 enumerate_modules(pid, _print_module, (void *)st); | |
| 1573 } | |
| 1574 | |
| 1575 void os::print_os_info(outputStream* st) { | |
|
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|
1576 st->print("OS:"); |
|
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1577 |
|
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|
1578 OSVERSIONINFOEX osvi; |
|
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1579 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
|
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1580 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
|
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|
1581 |
|
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|
1582 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
|
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|
1583 st->print_cr("N/A"); |
|
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1584 return; |
|
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|
1585 } |
|
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|
1586 |
|
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|
1587 int os_vers = osvi.dwMajorVersion * 1000 + osvi.dwMinorVersion; |
|
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1588 if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) { |
|
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1589 switch (os_vers) { |
|
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1590 case 3051: st->print(" Windows NT 3.51"); break; |
|
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1591 case 4000: st->print(" Windows NT 4.0"); break; |
|
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1592 case 5000: st->print(" Windows 2000"); break; |
|
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1593 case 5001: st->print(" Windows XP"); break; |
|
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|
1594 case 5002: |
|
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|
1595 case 6000: |
|
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|
1596 case 6001: { |
|
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1597 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
|
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1598 // find out whether we are running on 64 bit processor or not. |
|
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1599 SYSTEM_INFO si; |
|
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|
1600 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
|
3833
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|
1601 if (!os::Kernel32Dll::GetNativeSystemInfoAvailable()){ |
|
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1602 GetSystemInfo(&si); |
|
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1603 } else { |
|
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|
1604 os::Kernel32Dll::GetNativeSystemInfo(&si); |
|
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1605 } |
|
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1606 if (os_vers == 5002) { |
|
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1607 if (osvi.wProductType == VER_NT_WORKSTATION && |
|
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|
1608 si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
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|
1609 st->print(" Windows XP x64 Edition"); |
|
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|
1610 else |
|
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|
1611 st->print(" Windows Server 2003 family"); |
|
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|
1612 } else if (os_vers == 6000) { |
|
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1613 if (osvi.wProductType == VER_NT_WORKSTATION) |
|
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|
1614 st->print(" Windows Vista"); |
|
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|
1615 else |
|
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|
1616 st->print(" Windows Server 2008"); |
|
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1617 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
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|
1618 st->print(" , 64 bit"); |
|
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|
1619 } else if (os_vers == 6001) { |
|
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|
1620 if (osvi.wProductType == VER_NT_WORKSTATION) { |
|
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|
1621 st->print(" Windows 7"); |
|
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|
1622 } else { |
|
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|
1623 // Unrecognized windows, print out its major and minor versions |
|
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|
1624 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
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|
1625 } |
|
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|
1626 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
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|
1627 st->print(" , 64 bit"); |
|
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|
1628 } else { // future os |
|
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|
1629 // Unrecognized windows, print out its major and minor versions |
|
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|
1630 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
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|
1631 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
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|
1632 st->print(" , 64 bit"); |
|
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|
1633 } |
|
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|
1634 break; |
|
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|
1635 } |
|
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|
1636 default: // future windows, print out its major and minor versions |
|
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|
1637 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
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|
1638 } |
|
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|
1639 } else { |
|
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|
1640 switch (os_vers) { |
|
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|
1641 case 4000: st->print(" Windows 95"); break; |
|
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|
1642 case 4010: st->print(" Windows 98"); break; |
|
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|
1643 case 4090: st->print(" Windows Me"); break; |
|
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|
1644 default: // future windows, print out its major and minor versions |
|
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|
1645 st->print(" Windows %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
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|
1646 } |
|
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|
1647 } |
|
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|
1648 st->print(" Build %d", osvi.dwBuildNumber); |
|
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|
1649 st->print(" %s", osvi.szCSDVersion); // service pack |
|
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|
1650 st->cr(); |
| 0 | 1651 } |
| 1652 | |
|
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
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diff
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|
1653 void os::pd_print_cpu_info(outputStream* st) { |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
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|
1654 // Nothing to do for now. |
|
bf6481e5f96d
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|
1655 } |
|
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|
1656 |
| 0 | 1657 void os::print_memory_info(outputStream* st) { |
| 1658 st->print("Memory:"); | |
| 1659 st->print(" %dk page", os::vm_page_size()>>10); | |
| 1660 | |
|
877
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changeset
|
1661 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
|
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|
1662 // value if total memory is larger than 4GB |
|
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|
1663 MEMORYSTATUSEX ms; |
|
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|
1664 ms.dwLength = sizeof(ms); |
|
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changeset
|
1665 GlobalMemoryStatusEx(&ms); |
| 0 | 1666 |
| 1667 st->print(", physical %uk", os::physical_memory() >> 10); | |
| 1668 st->print("(%uk free)", os::available_memory() >> 10); | |
| 1669 | |
|
877
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|
1670 st->print(", swap %uk", ms.ullTotalPageFile >> 10); |
|
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|
1671 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
| 0 | 1672 st->cr(); |
| 1673 } | |
| 1674 | |
| 1675 void os::print_siginfo(outputStream *st, void *siginfo) { | |
| 1676 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
| 1677 st->print("siginfo:"); | |
| 1678 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
| 1679 | |
| 1680 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 1681 er->NumberParameters >= 2) { | |
| 1682 switch (er->ExceptionInformation[0]) { | |
| 1683 case 0: st->print(", reading address"); break; | |
| 1684 case 1: st->print(", writing address"); break; | |
| 1685 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
| 1686 er->ExceptionInformation[0]); | |
| 1687 } | |
| 1688 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
| 1689 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
| 1690 er->NumberParameters >= 2 && UseSharedSpaces) { | |
| 1691 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 1692 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
| 1693 st->print("\n\nError accessing class data sharing archive." \ | |
| 1694 " Mapped file inaccessible during execution, " \ | |
| 1695 " possible disk/network problem."); | |
| 1696 } | |
| 1697 } else { | |
| 1698 int num = er->NumberParameters; | |
| 1699 if (num > 0) { | |
| 1700 st->print(", ExceptionInformation="); | |
| 1701 for (int i = 0; i < num; i++) { | |
| 1702 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
| 1703 } | |
| 1704 } | |
| 1705 } | |
| 1706 st->cr(); | |
| 1707 } | |
| 1708 | |
| 1709 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 1710 // do nothing | |
| 1711 } | |
| 1712 | |
| 1713 static char saved_jvm_path[MAX_PATH] = {0}; | |
| 1714 | |
| 1715 // Find the full path to the current module, jvm.dll or jvm_g.dll | |
| 1716 void os::jvm_path(char *buf, jint buflen) { | |
| 1717 // Error checking. | |
| 1718 if (buflen < MAX_PATH) { | |
| 1719 assert(false, "must use a large-enough buffer"); | |
| 1720 buf[0] = '\0'; | |
| 1721 return; | |
| 1722 } | |
| 1723 // Lazy resolve the path to current module. | |
| 1724 if (saved_jvm_path[0] != 0) { | |
| 1725 strcpy(buf, saved_jvm_path); | |
| 1726 return; | |
| 1727 } | |
| 1728 | |
| 1985 | 1729 buf[0] = '\0'; |
|
2302
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7022037: Pause when exiting if debugger is attached on windows
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|
1730 if (Arguments::created_by_gamma_launcher()) { |
| 1985 | 1731 // Support for the gamma launcher. Check for an |
|
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
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diff
changeset
|
1732 // JAVA_HOME environment variable |
| 1985 | 1733 // and fix up the path so it looks like |
| 1734 // libjvm.so is installed there (append a fake suffix | |
| 1735 // hotspot/libjvm.so). | |
|
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
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diff
changeset
|
1736 char* java_home_var = ::getenv("JAVA_HOME"); |
| 1985 | 1737 if (java_home_var != NULL && java_home_var[0] != 0) { |
| 1738 | |
| 1739 strncpy(buf, java_home_var, buflen); | |
| 1740 | |
| 1741 // determine if this is a legacy image or modules image | |
| 1742 // modules image doesn't have "jre" subdirectory | |
| 1743 size_t len = strlen(buf); | |
| 1744 char* jrebin_p = buf + len; | |
| 1745 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
| 1746 if (0 != _access(buf, 0)) { | |
| 1747 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
| 1748 } | |
| 1749 len = strlen(buf); | |
| 1750 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
| 1751 } | |
| 1752 } | |
| 1753 | |
| 1754 if(buf[0] == '\0') { | |
| 0 | 1755 GetModuleFileName(vm_lib_handle, buf, buflen); |
| 1985 | 1756 } |
| 0 | 1757 strcpy(saved_jvm_path, buf); |
| 1758 } | |
| 1759 | |
| 1760 | |
| 1761 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 1762 #ifndef _WIN64 | |
| 1763 st->print("_"); | |
| 1764 #endif | |
| 1765 } | |
| 1766 | |
| 1767 | |
| 1768 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 1769 #ifndef _WIN64 | |
| 1770 st->print("@%d", args_size * sizeof(int)); | |
| 1771 #endif | |
| 1772 } | |
| 1773 | |
|
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1774 // This method is a copy of JDK's sysGetLastErrorString |
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1775 // from src/windows/hpi/src/system_md.c |
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1776 |
|
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1777 size_t os::lasterror(char* buf, size_t len) { |
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1778 DWORD errval; |
|
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|
1779 |
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1780 if ((errval = GetLastError()) != 0) { |
|
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1781 // DOS error |
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1782 size_t n = (size_t)FormatMessage( |
|
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1783 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
|
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1784 NULL, |
|
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1785 errval, |
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1786 0, |
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1787 buf, |
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1788 (DWORD)len, |
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1789 NULL); |
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1790 if (n > 3) { |
|
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1791 // Drop final '.', CR, LF |
|
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1792 if (buf[n - 1] == '\n') n--; |
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1793 if (buf[n - 1] == '\r') n--; |
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1794 if (buf[n - 1] == '.') n--; |
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1795 buf[n] = '\0'; |
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|
1796 } |
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1797 return n; |
|
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|
1798 } |
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1799 |
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1800 if (errno != 0) { |
|
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1801 // C runtime error that has no corresponding DOS error code |
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1802 const char* s = strerror(errno); |
|
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1803 size_t n = strlen(s); |
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1804 if (n >= len) n = len - 1; |
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1805 strncpy(buf, s, n); |
|
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1806 buf[n] = '\0'; |
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1807 return n; |
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|
1808 } |
|
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1809 |
|
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1810 return 0; |
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|
1811 } |
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1812 |
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1813 int os::get_last_error() { |
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1814 DWORD error = GetLastError(); |
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1815 if (error == 0) |
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1816 error = errno; |
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1817 return (int)error; |
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1818 } |
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1819 |
| 0 | 1820 // sun.misc.Signal |
| 1821 // NOTE that this is a workaround for an apparent kernel bug where if | |
| 1822 // a signal handler for SIGBREAK is installed then that signal handler | |
| 1823 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
| 1824 // See bug 4416763. | |
| 1825 static void (*sigbreakHandler)(int) = NULL; | |
| 1826 | |
| 1827 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 1828 os::signal_notify(sig); | |
| 1829 // We need to reinstate the signal handler each time... | |
| 1830 os::signal(sig, (void*)UserHandler); | |
| 1831 } | |
| 1832 | |
| 1833 void* os::user_handler() { | |
| 1834 return (void*) UserHandler; | |
| 1835 } | |
| 1836 | |
| 1837 void* os::signal(int signal_number, void* handler) { | |
| 1838 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
| 1839 void (*oldHandler)(int) = sigbreakHandler; | |
| 1840 sigbreakHandler = (void (*)(int)) handler; | |
| 1841 return (void*) oldHandler; | |
| 1842 } else { | |
| 1843 return (void*)::signal(signal_number, (void (*)(int))handler); | |
| 1844 } | |
| 1845 } | |
| 1846 | |
| 1847 void os::signal_raise(int signal_number) { | |
| 1848 raise(signal_number); | |
| 1849 } | |
| 1850 | |
| 1851 // The Win32 C runtime library maps all console control events other than ^C | |
| 1852 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
| 1853 // logoff, and shutdown events. We therefore install our own console handler | |
| 1854 // that raises SIGTERM for the latter cases. | |
| 1855 // | |
| 1856 static BOOL WINAPI consoleHandler(DWORD event) { | |
| 1857 switch(event) { | |
| 1858 case CTRL_C_EVENT: | |
| 1859 if (is_error_reported()) { | |
| 1860 // Ctrl-C is pressed during error reporting, likely because the error | |
| 1861 // handler fails to abort. Let VM die immediately. | |
| 1862 os::die(); | |
| 1863 } | |
| 1864 | |
| 1865 os::signal_raise(SIGINT); | |
| 1866 return TRUE; | |
| 1867 break; | |
| 1868 case CTRL_BREAK_EVENT: | |
| 1869 if (sigbreakHandler != NULL) { | |
| 1870 (*sigbreakHandler)(SIGBREAK); | |
| 1871 } | |
| 1872 return TRUE; | |
| 1873 break; | |
| 1874 case CTRL_CLOSE_EVENT: | |
| 1875 case CTRL_LOGOFF_EVENT: | |
| 1876 case CTRL_SHUTDOWN_EVENT: | |
| 1877 os::signal_raise(SIGTERM); | |
| 1878 return TRUE; | |
| 1879 break; | |
| 1880 default: | |
| 1881 break; | |
| 1882 } | |
| 1883 return FALSE; | |
| 1884 } | |
| 1885 | |
| 1886 /* | |
| 1887 * The following code is moved from os.cpp for making this | |
| 1888 * code platform specific, which it is by its very nature. | |
| 1889 */ | |
| 1890 | |
| 1891 // Return maximum OS signal used + 1 for internal use only | |
| 1892 // Used as exit signal for signal_thread | |
| 1893 int os::sigexitnum_pd(){ | |
| 1894 return NSIG; | |
| 1895 } | |
| 1896 | |
| 1897 // a counter for each possible signal value, including signal_thread exit signal | |
| 1898 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
| 1899 static HANDLE sig_sem; | |
| 1900 | |
| 1901 void os::signal_init_pd() { | |
| 1902 // Initialize signal structures | |
| 1903 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
| 1904 | |
| 1905 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
| 1906 | |
| 1907 // Programs embedding the VM do not want it to attempt to receive | |
| 1908 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
| 1909 // shutdown hooks mechanism introduced in 1.3. For example, when | |
| 1910 // the VM is run as part of a Windows NT service (i.e., a servlet | |
| 1911 // engine in a web server), the correct behavior is for any console | |
| 1912 // control handler to return FALSE, not TRUE, because the OS's | |
| 1913 // "final" handler for such events allows the process to continue if | |
| 1914 // it is a service (while terminating it if it is not a service). | |
| 1915 // To make this behavior uniform and the mechanism simpler, we | |
| 1916 // completely disable the VM's usage of these console events if -Xrs | |
| 1917 // (=ReduceSignalUsage) is specified. This means, for example, that | |
| 1918 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
| 1919 // case. See bugs 4323062, 4345157, and related bugs. | |
| 1920 | |
| 1921 if (!ReduceSignalUsage) { | |
| 1922 // Add a CTRL-C handler | |
| 1923 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
| 1924 } | |
| 1925 } | |
| 1926 | |
| 1927 void os::signal_notify(int signal_number) { | |
| 1928 BOOL ret; | |
| 1929 | |
| 1930 Atomic::inc(&pending_signals[signal_number]); | |
| 1931 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 1932 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 1933 } | |
| 1934 | |
| 1935 static int check_pending_signals(bool wait_for_signal) { | |
| 1936 DWORD ret; | |
| 1937 while (true) { | |
| 1938 for (int i = 0; i < NSIG + 1; i++) { | |
| 1939 jint n = pending_signals[i]; | |
| 1940 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 1941 return i; | |
| 1942 } | |
| 1943 } | |
| 1944 if (!wait_for_signal) { | |
| 1945 return -1; | |
| 1946 } | |
| 1947 | |
| 1948 JavaThread *thread = JavaThread::current(); | |
| 1949 | |
| 1950 ThreadBlockInVM tbivm(thread); | |
| 1951 | |
| 1952 bool threadIsSuspended; | |
| 1953 do { | |
| 1954 thread->set_suspend_equivalent(); | |
| 1955 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 1956 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
| 1957 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
| 1958 | |
| 1959 // were we externally suspended while we were waiting? | |
| 1960 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 1961 if (threadIsSuspended) { | |
| 1962 // | |
| 1963 // The semaphore has been incremented, but while we were waiting | |
| 1964 // another thread suspended us. We don't want to continue running | |
| 1965 // while suspended because that would surprise the thread that | |
| 1966 // suspended us. | |
| 1967 // | |
| 1968 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 1969 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 1970 | |
| 1971 thread->java_suspend_self(); | |
| 1972 } | |
| 1973 } while (threadIsSuspended); | |
| 1974 } | |
| 1975 } | |
| 1976 | |
| 1977 int os::signal_lookup() { | |
| 1978 return check_pending_signals(false); | |
| 1979 } | |
| 1980 | |
| 1981 int os::signal_wait() { | |
| 1982 return check_pending_signals(true); | |
| 1983 } | |
| 1984 | |
| 1985 // Implicit OS exception handling | |
| 1986 | |
| 1987 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
| 1988 JavaThread* thread = JavaThread::current(); | |
| 1989 // Save pc in thread | |
| 1990 #ifdef _M_IA64 | |
| 1991 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->StIIP); | |
| 1992 // Set pc to handler | |
| 1993 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
| 1994 #elif _M_AMD64 | |
| 1995 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Rip); | |
| 1996 // Set pc to handler | |
| 1997 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
| 1998 #else | |
| 1999 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Eip); | |
| 2000 // Set pc to handler | |
| 2001 exceptionInfo->ContextRecord->Eip = (LONG)handler; | |
| 2002 #endif | |
| 2003 | |
| 2004 // Continue the execution | |
| 2005 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2006 } | |
| 2007 | |
| 2008 | |
| 2009 // Used for PostMortemDump | |
| 2010 extern "C" void safepoints(); | |
| 2011 extern "C" void find(int x); | |
| 2012 extern "C" void events(); | |
| 2013 | |
| 2014 // According to Windows API documentation, an illegal instruction sequence should generate | |
| 2015 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
| 2016 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
| 2017 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
| 2018 | |
| 2019 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
| 2020 | |
| 2021 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
| 2022 // Once a system header becomes available, the "real" define should be | |
| 2023 // included or copied here. | |
| 2024 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
| 2025 | |
| 2026 #define def_excpt(val) #val, val | |
| 2027 | |
| 2028 struct siglabel { | |
| 2029 char *name; | |
| 2030 int number; | |
| 2031 }; | |
| 2032 | |
|
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2033 // All Visual C++ exceptions thrown from code generated by the Microsoft Visual |
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2034 // C++ compiler contain this error code. Because this is a compiler-generated |
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2035 // error, the code is not listed in the Win32 API header files. |
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2036 // The code is actually a cryptic mnemonic device, with the initial "E" |
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2037 // standing for "exception" and the final 3 bytes (0x6D7363) representing the |
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2038 // ASCII values of "msc". |
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2039 |
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2040 #define EXCEPTION_UNCAUGHT_CXX_EXCEPTION 0xE06D7363 |
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2041 |
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2042 |
| 0 | 2043 struct siglabel exceptlabels[] = { |
| 2044 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
| 2045 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
| 2046 def_excpt(EXCEPTION_BREAKPOINT), | |
| 2047 def_excpt(EXCEPTION_SINGLE_STEP), | |
| 2048 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
| 2049 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
| 2050 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
| 2051 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
| 2052 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
| 2053 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
| 2054 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
| 2055 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
| 2056 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
| 2057 def_excpt(EXCEPTION_INT_OVERFLOW), | |
| 2058 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
| 2059 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
| 2060 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
| 2061 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
| 2062 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
| 2063 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
| 2064 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
| 2065 def_excpt(EXCEPTION_GUARD_PAGE), | |
| 2066 def_excpt(EXCEPTION_INVALID_HANDLE), | |
|
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2067 def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION), |
| 0 | 2068 NULL, 0 |
| 2069 }; | |
| 2070 | |
| 2071 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
| 2072 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
| 2073 if (exceptlabels[i].number == exception_code) { | |
| 2074 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
| 2075 return buf; | |
| 2076 } | |
| 2077 } | |
| 2078 | |
| 2079 return NULL; | |
| 2080 } | |
| 2081 | |
| 2082 //----------------------------------------------------------------------------- | |
| 2083 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2084 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
| 2085 // (division by zero is handled explicitly) | |
| 2086 #ifdef _M_IA64 | |
| 2087 assert(0, "Fix Handle_IDiv_Exception"); | |
| 2088 #elif _M_AMD64 | |
| 2089 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2090 address pc = (address)ctx->Rip; | |
| 2091 NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc)); | |
| 2092 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2093 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2094 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
| 2095 // set correct result values and continue after idiv instruction | |
| 2096 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2097 ctx->Rax = (DWORD)min_jint; // result | |
| 2098 ctx->Rdx = (DWORD)0; // remainder | |
| 2099 // Continue the execution | |
| 2100 #else | |
| 2101 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2102 address pc = (address)ctx->Eip; | |
| 2103 NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc)); | |
| 2104 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2105 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2106 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
| 2107 // set correct result values and continue after idiv instruction | |
| 2108 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2109 ctx->Eax = (DWORD)min_jint; // result | |
| 2110 ctx->Edx = (DWORD)0; // remainder | |
| 2111 // Continue the execution | |
| 2112 #endif | |
| 2113 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2114 } | |
| 2115 | |
| 2116 #ifndef _WIN64 | |
| 2117 //----------------------------------------------------------------------------- | |
| 2118 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
|
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2119 // handle exception caused by native method modifying control word |
| 0 | 2120 PCONTEXT ctx = exceptionInfo->ContextRecord; |
| 2121 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2122 | |
| 2123 switch (exception_code) { | |
| 2124 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
| 2125 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
| 2126 case EXCEPTION_FLT_INEXACT_RESULT: | |
| 2127 case EXCEPTION_FLT_INVALID_OPERATION: | |
| 2128 case EXCEPTION_FLT_OVERFLOW: | |
| 2129 case EXCEPTION_FLT_STACK_CHECK: | |
| 2130 case EXCEPTION_FLT_UNDERFLOW: | |
| 2131 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
| 2132 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
| 2133 // Restore FPCW and mask out FLT exceptions | |
| 2134 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
| 2135 // Mask out pending FLT exceptions | |
| 2136 ctx->FloatSave.StatusWord &= 0xffffff00; | |
| 2137 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2138 } | |
| 2139 } | |
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2140 |
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2141 if (prev_uef_handler != NULL) { |
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2142 // We didn't handle this exception so pass it to the previous |
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2143 // UnhandledExceptionFilter. |
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2144 return (prev_uef_handler)(exceptionInfo); |
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2145 } |
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2146 |
| 0 | 2147 return EXCEPTION_CONTINUE_SEARCH; |
| 2148 } | |
| 2149 #else //_WIN64 | |
| 2150 /* | |
| 2151 On Windows, the mxcsr control bits are non-volatile across calls | |
| 2152 See also CR 6192333 | |
| 2153 If EXCEPTION_FLT_* happened after some native method modified | |
| 2154 mxcsr - it is not a jvm fault. | |
| 2155 However should we decide to restore of mxcsr after a faulty | |
| 2156 native method we can uncomment following code | |
| 2157 jint MxCsr = INITIAL_MXCSR; | |
| 2158 // we can't use StubRoutines::addr_mxcsr_std() | |
| 2159 // because in Win64 mxcsr is not saved there | |
| 2160 if (MxCsr != ctx->MxCsr) { | |
| 2161 ctx->MxCsr = MxCsr; | |
| 2162 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2163 } | |
| 2164 | |
| 2165 */ | |
| 2166 #endif //_WIN64 | |
| 2167 | |
| 2168 | |
| 2169 // Fatal error reporting is single threaded so we can make this a | |
| 2170 // static and preallocated. If it's more than MAX_PATH silently ignore | |
| 2171 // it. | |
| 2172 static char saved_error_file[MAX_PATH] = {0}; | |
| 2173 | |
| 2174 void os::set_error_file(const char *logfile) { | |
| 2175 if (strlen(logfile) <= MAX_PATH) { | |
| 2176 strncpy(saved_error_file, logfile, MAX_PATH); | |
| 2177 } | |
| 2178 } | |
| 2179 | |
| 2180 static inline void report_error(Thread* t, DWORD exception_code, | |
| 2181 address addr, void* siginfo, void* context) { | |
| 2182 VMError err(t, exception_code, addr, siginfo, context); | |
| 2183 err.report_and_die(); | |
| 2184 | |
| 2185 // If UseOsErrorReporting, this will return here and save the error file | |
| 2186 // somewhere where we can find it in the minidump. | |
| 2187 } | |
| 2188 | |
| 2189 //----------------------------------------------------------------------------- | |
| 2190 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2191 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
| 2192 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2193 #ifdef _M_IA64 | |
| 2194 address pc = (address) exceptionInfo->ContextRecord->StIIP; | |
| 2195 #elif _M_AMD64 | |
| 2196 address pc = (address) exceptionInfo->ContextRecord->Rip; | |
| 2197 #else | |
| 2198 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2199 #endif | |
| 2200 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
| 2201 | |
| 2202 #ifndef _WIN64 | |
| 2203 // Execution protection violation - win32 running on AMD64 only | |
| 2204 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
| 2205 // This is safe to do because we have a new/unique ExceptionInformation | |
| 2206 // code for this condition. | |
| 2207 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2208 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2209 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
| 2210 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2211 | |
| 2212 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 2213 int page_size = os::vm_page_size(); | |
| 2214 | |
| 2215 // Make sure the pc and the faulting address are sane. | |
| 2216 // | |
| 2217 // If an instruction spans a page boundary, and the page containing | |
| 2218 // the beginning of the instruction is executable but the following | |
| 2219 // page is not, the pc and the faulting address might be slightly | |
| 2220 // different - we still want to unguard the 2nd page in this case. | |
| 2221 // | |
| 2222 // 15 bytes seems to be a (very) safe value for max instruction size. | |
| 2223 bool pc_is_near_addr = | |
| 2224 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
| 2225 bool instr_spans_page_boundary = | |
| 2226 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
| 2227 (intptr_t) page_size) > 0); | |
| 2228 | |
| 2229 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
| 2230 static volatile address last_addr = | |
| 2231 (address) os::non_memory_address_word(); | |
| 2232 | |
| 2233 // In conservative mode, don't unguard unless the address is in the VM | |
| 2234 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
| 2235 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
| 2236 | |
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2237 // Set memory to RWX and retry |
| 0 | 2238 address page_start = |
| 2239 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
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2240 bool res = os::protect_memory((char*) page_start, page_size, |
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2241 os::MEM_PROT_RWX); |
| 0 | 2242 |
| 2243 if (PrintMiscellaneous && Verbose) { | |
| 2244 char buf[256]; | |
| 2245 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
| 2246 "at " INTPTR_FORMAT | |
| 2247 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
| 2248 page_start, (res ? "success" : strerror(errno))); | |
| 2249 tty->print_raw_cr(buf); | |
| 2250 } | |
| 2251 | |
| 2252 // Set last_addr so if we fault again at the same address, we don't | |
| 2253 // end up in an endless loop. | |
| 2254 // | |
| 2255 // There are two potential complications here. Two threads trapping | |
| 2256 // at the same address at the same time could cause one of the | |
| 2257 // threads to think it already unguarded, and abort the VM. Likely | |
| 2258 // very rare. | |
| 2259 // | |
| 2260 // The other race involves two threads alternately trapping at | |
| 2261 // different addresses and failing to unguard the page, resulting in | |
| 2262 // an endless loop. This condition is probably even more unlikely | |
| 2263 // than the first. | |
| 2264 // | |
| 2265 // Although both cases could be avoided by using locks or thread | |
| 2266 // local last_addr, these solutions are unnecessary complication: | |
| 2267 // this handler is a best-effort safety net, not a complete solution. | |
| 2268 // It is disabled by default and should only be used as a workaround | |
| 2269 // in case we missed any no-execute-unsafe VM code. | |
| 2270 | |
| 2271 last_addr = addr; | |
| 2272 | |
| 2273 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2274 } | |
| 2275 } | |
| 2276 | |
| 2277 // Last unguard failed or not unguarding | |
| 2278 tty->print_raw_cr("Execution protection violation"); | |
| 2279 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
| 2280 exceptionInfo->ContextRecord); | |
| 2281 return EXCEPTION_CONTINUE_SEARCH; | |
| 2282 } | |
| 2283 } | |
| 2284 #endif // _WIN64 | |
| 2285 | |
| 2286 // Check to see if we caught the safepoint code in the | |
| 2287 // process of write protecting the memory serialization page. | |
| 2288 // It write enables the page immediately after protecting it | |
| 2289 // so just return. | |
| 2290 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 2291 JavaThread* thread = (JavaThread*) t; | |
| 2292 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2293 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2294 if ( os::is_memory_serialize_page(thread, addr) ) { | |
| 2295 // Block current thread until the memory serialize page permission restored. | |
| 2296 os::block_on_serialize_page_trap(); | |
| 2297 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2298 } | |
| 2299 } | |
| 2300 | |
| 2301 if (t != NULL && t->is_Java_thread()) { | |
| 2302 JavaThread* thread = (JavaThread*) t; | |
| 2303 bool in_java = thread->thread_state() == _thread_in_Java; | |
| 2304 | |
| 2305 // Handle potential stack overflows up front. | |
| 2306 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
| 2307 if (os::uses_stack_guard_pages()) { | |
| 2308 #ifdef _M_IA64 | |
| 2309 // | |
| 2310 // If it's a legal stack address continue, Windows will map it in. | |
| 2311 // | |
| 2312 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2313 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2314 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) | |
| 2315 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2316 | |
| 2317 // The register save area is the same size as the memory stack | |
| 2318 // and starts at the page just above the start of the memory stack. | |
| 2319 // If we get a fault in this area, we've run out of register | |
| 2320 // stack. If we are in java, try throwing a stack overflow exception. | |
| 2321 if (addr > thread->stack_base() && | |
| 2322 addr <= (thread->stack_base()+thread->stack_size()) ) { | |
| 2323 char buf[256]; | |
| 2324 jio_snprintf(buf, sizeof(buf), | |
| 2325 "Register stack overflow, addr:%p, stack_base:%p\n", | |
| 2326 addr, thread->stack_base() ); | |
| 2327 tty->print_raw_cr(buf); | |
| 2328 // If not in java code, return and hope for the best. | |
| 2329 return in_java ? Handle_Exception(exceptionInfo, | |
| 2330 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2331 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2332 } | |
| 2333 #endif | |
| 2334 if (thread->stack_yellow_zone_enabled()) { | |
| 2335 // Yellow zone violation. The o/s has unprotected the first yellow | |
| 2336 // zone page for us. Note: must call disable_stack_yellow_zone to | |
| 2337 // update the enabled status, even if the zone contains only one page. | |
| 2338 thread->disable_stack_yellow_zone(); | |
| 2339 // If not in java code, return and hope for the best. | |
| 2340 return in_java ? Handle_Exception(exceptionInfo, | |
| 2341 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2342 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2343 } else { | |
| 2344 // Fatal red zone violation. | |
| 2345 thread->disable_stack_red_zone(); | |
| 2346 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
| 2347 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2348 exceptionInfo->ContextRecord); | |
| 2349 return EXCEPTION_CONTINUE_SEARCH; | |
| 2350 } | |
| 2351 } else if (in_java) { | |
| 2352 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
| 2353 // a one-time-only guard page, which it has released to us. The next | |
| 2354 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
| 2355 return Handle_Exception(exceptionInfo, | |
| 2356 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2357 } else { | |
| 2358 // Can only return and hope for the best. Further stack growth will | |
| 2359 // result in an ACCESS_VIOLATION. | |
| 2360 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2361 } | |
| 2362 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2363 // Either stack overflow or null pointer exception. | |
| 2364 if (in_java) { | |
| 2365 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2366 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2367 address stack_end = thread->stack_base() - thread->stack_size(); | |
| 2368 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
| 2369 // Stack overflow. | |
| 2370 assert(!os::uses_stack_guard_pages(), | |
| 2371 "should be caught by red zone code above."); | |
| 2372 return Handle_Exception(exceptionInfo, | |
| 2373 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2374 } | |
| 2375 // | |
| 2376 // Check for safepoint polling and implicit null | |
| 2377 // We only expect null pointers in the stubs (vtable) | |
| 2378 // the rest are checked explicitly now. | |
| 2379 // | |
| 2380 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2381 if (cb != NULL) { | |
| 2382 if (os::is_poll_address(addr)) { | |
| 2383 address stub = SharedRuntime::get_poll_stub(pc); | |
| 2384 return Handle_Exception(exceptionInfo, stub); | |
| 2385 } | |
| 2386 } | |
| 2387 { | |
| 2388 #ifdef _WIN64 | |
| 2389 // | |
| 2390 // If it's a legal stack address map the entire region in | |
| 2391 // | |
| 2392 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2393 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2394 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
| 2395 addr = (address)((uintptr_t)addr & | |
| 2396 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
| 656 | 2397 os::commit_memory((char *)addr, thread->stack_base() - addr, |
| 2398 false ); | |
| 0 | 2399 return EXCEPTION_CONTINUE_EXECUTION; |
| 2400 } | |
| 2401 else | |
| 2402 #endif | |
| 2403 { | |
| 2404 // Null pointer exception. | |
| 2405 #ifdef _M_IA64 | |
| 2406 // We catch register stack overflows in compiled code by doing | |
| 2407 // an explicit compare and executing a st8(G0, G0) if the | |
| 2408 // BSP enters into our guard area. We test for the overflow | |
| 2409 // condition and fall into the normal null pointer exception | |
| 2410 // code if BSP hasn't overflowed. | |
| 2411 if ( in_java ) { | |
| 2412 if(thread->register_stack_overflow()) { | |
| 2413 assert((address)exceptionInfo->ContextRecord->IntS3 == | |
| 2414 thread->register_stack_limit(), | |
| 2415 "GR7 doesn't contain register_stack_limit"); | |
| 2416 // Disable the yellow zone which sets the state that | |
| 2417 // we've got a stack overflow problem. | |
| 2418 if (thread->stack_yellow_zone_enabled()) { | |
| 2419 thread->disable_stack_yellow_zone(); | |
| 2420 } | |
| 2421 // Give us some room to process the exception | |
| 2422 thread->disable_register_stack_guard(); | |
| 2423 // Update GR7 with the new limit so we can continue running | |
| 2424 // compiled code. | |
| 2425 exceptionInfo->ContextRecord->IntS3 = | |
| 2426 (ULONGLONG)thread->register_stack_limit(); | |
| 2427 return Handle_Exception(exceptionInfo, | |
| 2428 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2429 } else { | |
| 2430 // | |
| 2431 // Check for implicit null | |
| 2432 // We only expect null pointers in the stubs (vtable) | |
| 2433 // the rest are checked explicitly now. | |
| 2434 // | |
|
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2435 if (((uintptr_t)addr) < os::vm_page_size() ) { |
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2436 // an access to the first page of VM--assume it is a null pointer |
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2437 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2438 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2439 } |
| 2440 } | |
| 2441 } // in_java | |
| 2442 | |
| 2443 // IA64 doesn't use implicit null checking yet. So we shouldn't | |
| 2444 // get here. | |
| 2445 tty->print_raw_cr("Access violation, possible null pointer exception"); | |
| 2446 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2447 exceptionInfo->ContextRecord); | |
| 2448 return EXCEPTION_CONTINUE_SEARCH; | |
| 2449 #else /* !IA64 */ | |
| 2450 | |
| 2451 // Windows 98 reports faulting addresses incorrectly | |
| 2452 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
| 2453 !os::win32::is_nt()) { | |
|
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2454 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2455 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2456 } |
| 2457 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2458 exceptionInfo->ContextRecord); | |
| 2459 return EXCEPTION_CONTINUE_SEARCH; | |
| 2460 #endif | |
| 2461 } | |
| 2462 } | |
| 2463 } | |
| 2464 | |
| 2465 #ifdef _WIN64 | |
| 2466 // Special care for fast JNI field accessors. | |
| 2467 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
| 2468 // in and the heap gets shrunk before the field access. | |
| 2469 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2470 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2471 if (addr != (address)-1) { | |
| 2472 return Handle_Exception(exceptionInfo, addr); | |
| 2473 } | |
| 2474 } | |
| 2475 #endif | |
| 2476 | |
| 2477 #ifdef _WIN64 | |
| 2478 // Windows will sometimes generate an access violation | |
| 2479 // when we call malloc. Since we use VectoredExceptions | |
| 2480 // on 64 bit platforms, we see this exception. We must | |
| 2481 // pass this exception on so Windows can recover. | |
| 2482 // We check to see if the pc of the fault is in NTDLL.DLL | |
| 2483 // if so, we pass control on to Windows for handling. | |
| 2484 if (UseVectoredExceptions && _addr_in_ntdll(pc)) return EXCEPTION_CONTINUE_SEARCH; | |
| 2485 #endif | |
| 2486 | |
| 2487 // Stack overflow or null pointer exception in native code. | |
| 2488 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2489 exceptionInfo->ContextRecord); | |
| 2490 return EXCEPTION_CONTINUE_SEARCH; | |
| 2491 } | |
| 2492 | |
| 2493 if (in_java) { | |
| 2494 switch (exception_code) { | |
| 2495 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
| 2496 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
| 2497 | |
| 2498 case EXCEPTION_INT_OVERFLOW: | |
| 2499 return Handle_IDiv_Exception(exceptionInfo); | |
| 2500 | |
| 2501 } // switch | |
| 2502 } | |
| 2503 #ifndef _WIN64 | |
|
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2504 if (((thread->thread_state() == _thread_in_Java) || |
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2505 (thread->thread_state() == _thread_in_native)) && |
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2506 exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION) |
| 0 | 2507 { |
| 2508 LONG result=Handle_FLT_Exception(exceptionInfo); | |
| 2509 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
| 2510 } | |
| 2511 #endif //_WIN64 | |
| 2512 } | |
| 2513 | |
| 2514 if (exception_code != EXCEPTION_BREAKPOINT) { | |
| 2515 #ifndef _WIN64 | |
| 2516 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2517 exceptionInfo->ContextRecord); | |
| 2518 #else | |
| 2519 // Itanium Windows uses a VectoredExceptionHandler | |
| 2520 // Which means that C++ programatic exception handlers (try/except) | |
| 2521 // will get here. Continue the search for the right except block if | |
| 2522 // the exception code is not a fatal code. | |
| 2523 switch ( exception_code ) { | |
| 2524 case EXCEPTION_ACCESS_VIOLATION: | |
| 2525 case EXCEPTION_STACK_OVERFLOW: | |
| 2526 case EXCEPTION_ILLEGAL_INSTRUCTION: | |
| 2527 case EXCEPTION_ILLEGAL_INSTRUCTION_2: | |
| 2528 case EXCEPTION_INT_OVERFLOW: | |
| 2529 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
|
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2530 case EXCEPTION_UNCAUGHT_CXX_EXCEPTION: |
| 0 | 2531 { report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, |
| 2532 exceptionInfo->ContextRecord); | |
| 2533 } | |
| 2534 break; | |
| 2535 default: | |
| 2536 break; | |
| 2537 } | |
| 2538 #endif | |
| 2539 } | |
| 2540 return EXCEPTION_CONTINUE_SEARCH; | |
| 2541 } | |
| 2542 | |
| 2543 #ifndef _WIN64 | |
| 2544 // Special care for fast JNI accessors. | |
| 2545 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
| 2546 // the heap gets shrunk before the field access. | |
| 2547 // Need to install our own structured exception handler since native code may | |
| 2548 // install its own. | |
| 2549 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2550 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2551 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2552 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2553 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2554 if (addr != (address)-1) { | |
| 2555 return Handle_Exception(exceptionInfo, addr); | |
| 2556 } | |
| 2557 } | |
| 2558 return EXCEPTION_CONTINUE_SEARCH; | |
| 2559 } | |
| 2560 | |
| 2561 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
| 2562 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
| 2563 __try { \ | |
| 2564 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
| 2565 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
| 2566 } \ | |
| 2567 return 0; \ | |
| 2568 } | |
| 2569 | |
| 2570 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
| 2571 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
| 2572 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
| 2573 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
| 2574 DEFINE_FAST_GETFIELD(jint, int, Int) | |
| 2575 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
| 2576 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
| 2577 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
| 2578 | |
| 2579 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
| 2580 switch (type) { | |
| 2581 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
| 2582 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
| 2583 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
| 2584 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
| 2585 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
| 2586 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
| 2587 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
| 2588 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
| 2589 default: ShouldNotReachHere(); | |
| 2590 } | |
| 2591 return (address)-1; | |
| 2592 } | |
| 2593 #endif | |
| 2594 | |
| 2595 // Virtual Memory | |
| 2596 | |
| 2597 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
| 2598 int os::vm_allocation_granularity() { | |
| 2599 return os::win32::vm_allocation_granularity(); | |
| 2600 } | |
| 2601 | |
| 2602 // Windows large page support is available on Windows 2003. In order to use | |
| 2603 // large page memory, the administrator must first assign additional privilege | |
| 2604 // to the user: | |
| 2605 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
| 2606 // + select Local Policies -> User Rights Assignment | |
| 2607 // + double click "Lock pages in memory", add users and/or groups | |
| 2608 // + reboot | |
| 2609 // Note the above steps are needed for administrator as well, as administrators | |
| 2610 // by default do not have the privilege to lock pages in memory. | |
| 2611 // | |
| 2612 // Note about Windows 2003: although the API supports committing large page | |
| 2613 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
| 2614 // scenario, I found through experiment it only uses large page if the entire | |
| 2615 // memory region is reserved and committed in a single VirtualAlloc() call. | |
| 2616 // This makes Windows large page support more or less like Solaris ISM, in | |
| 2617 // that the entire heap must be committed upfront. This probably will change | |
| 2618 // in the future, if so the code below needs to be revisited. | |
| 2619 | |
| 2620 #ifndef MEM_LARGE_PAGES | |
| 2621 #define MEM_LARGE_PAGES 0x20000000 | |
| 2622 #endif | |
| 2623 | |
| 2624 static HANDLE _hProcess; | |
| 2625 static HANDLE _hToken; | |
| 2626 | |
| 3885 | 2627 // Container for NUMA node list info |
| 2628 class NUMANodeListHolder { | |
| 2629 private: | |
| 2630 int *_numa_used_node_list; // allocated below | |
| 2631 int _numa_used_node_count; | |
| 2632 | |
| 2633 void free_node_list() { | |
| 2634 if (_numa_used_node_list != NULL) { | |
| 2635 FREE_C_HEAP_ARRAY(int, _numa_used_node_list); | |
| 2636 } | |
| 2637 } | |
| 2638 | |
| 2639 public: | |
| 2640 NUMANodeListHolder() { | |
| 2641 _numa_used_node_count = 0; | |
| 2642 _numa_used_node_list = NULL; | |
| 2643 // do rest of initialization in build routine (after function pointers are set up) | |
| 2644 } | |
| 2645 | |
| 2646 ~NUMANodeListHolder() { | |
| 2647 free_node_list(); | |
| 2648 } | |
| 2649 | |
| 2650 bool build() { | |
| 2651 DWORD_PTR proc_aff_mask; | |
| 2652 DWORD_PTR sys_aff_mask; | |
| 2653 if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false; | |
| 2654 ULONG highest_node_number; | |
| 2655 if (!os::Kernel32Dll::GetNumaHighestNodeNumber(&highest_node_number)) return false; | |
| 2656 free_node_list(); | |
|
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2657 _numa_used_node_list = NEW_C_HEAP_ARRAY(int, highest_node_number + 1); |
| 3885 | 2658 for (unsigned int i = 0; i <= highest_node_number; i++) { |
| 2659 ULONGLONG proc_mask_numa_node; | |
| 2660 if (!os::Kernel32Dll::GetNumaNodeProcessorMask(i, &proc_mask_numa_node)) return false; | |
| 2661 if ((proc_aff_mask & proc_mask_numa_node)!=0) { | |
| 2662 _numa_used_node_list[_numa_used_node_count++] = i; | |
| 2663 } | |
| 2664 } | |
| 2665 return (_numa_used_node_count > 1); | |
| 2666 } | |
| 2667 | |
| 2668 int get_count() {return _numa_used_node_count;} | |
| 2669 int get_node_list_entry(int n) { | |
| 2670 // for indexes out of range, returns -1 | |
| 2671 return (n < _numa_used_node_count ? _numa_used_node_list[n] : -1); | |
| 2672 } | |
| 2673 | |
| 2674 } numa_node_list_holder; | |
| 2675 | |
| 2676 | |
| 2677 | |
| 0 | 2678 static size_t _large_page_size = 0; |
| 2679 | |
| 2680 static bool resolve_functions_for_large_page_init() { | |
|
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2681 return os::Kernel32Dll::GetLargePageMinimumAvailable() && |
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2682 os::Advapi32Dll::AdvapiAvailable(); |
| 0 | 2683 } |
| 2684 | |
| 2685 static bool request_lock_memory_privilege() { | |
| 2686 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
| 2687 os::current_process_id()); | |
| 2688 | |
| 2689 LUID luid; | |
| 2690 if (_hProcess != NULL && | |
|
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2691 os::Advapi32Dll::OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && |
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2692 os::Advapi32Dll::LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { |
| 0 | 2693 |
| 2694 TOKEN_PRIVILEGES tp; | |
| 2695 tp.PrivilegeCount = 1; | |
| 2696 tp.Privileges[0].Luid = luid; | |
| 2697 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
| 2698 | |
| 2699 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
| 2700 // privilege. Check GetLastError() too. See MSDN document. | |
|
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2701 if (os::Advapi32Dll::AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && |
| 0 | 2702 (GetLastError() == ERROR_SUCCESS)) { |
| 2703 return true; | |
| 2704 } | |
| 2705 } | |
| 2706 | |
| 2707 return false; | |
| 2708 } | |
| 2709 | |
| 2710 static void cleanup_after_large_page_init() { | |
| 2711 if (_hProcess) CloseHandle(_hProcess); | |
| 2712 _hProcess = NULL; | |
| 2713 if (_hToken) CloseHandle(_hToken); | |
| 2714 _hToken = NULL; | |
| 2715 } | |
| 2716 | |
| 3885 | 2717 static bool numa_interleaving_init() { |
| 2718 bool success = false; | |
| 2719 bool use_numa_interleaving_specified = !FLAG_IS_DEFAULT(UseNUMAInterleaving); | |
| 2720 | |
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2721 // print a warning if UseNUMAInterleaving flag is specified on command line |
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2722 bool warn_on_failure = use_numa_interleaving_specified; |
| 3885 | 2723 # define WARN(msg) if (warn_on_failure) { warning(msg); } |
| 2724 | |
| 2725 // NUMAInterleaveGranularity cannot be less than vm_allocation_granularity (or _large_page_size if using large pages) | |
| 2726 size_t min_interleave_granularity = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
| 2727 NUMAInterleaveGranularity = align_size_up(NUMAInterleaveGranularity, min_interleave_granularity); | |
| 2728 | |
| 2729 if (os::Kernel32Dll::NumaCallsAvailable()) { | |
| 2730 if (numa_node_list_holder.build()) { | |
| 2731 if (PrintMiscellaneous && Verbose) { | |
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2732 tty->print("NUMA UsedNodeCount=%d, namely ", numa_node_list_holder.get_count()); |
| 3885 | 2733 for (int i = 0; i < numa_node_list_holder.get_count(); i++) { |
| 2734 tty->print("%d ", numa_node_list_holder.get_node_list_entry(i)); | |
| 2735 } | |
| 2736 tty->print("\n"); | |
| 2737 } | |
| 2738 success = true; | |
| 2739 } else { | |
| 2740 WARN("Process does not cover multiple NUMA nodes."); | |
| 2741 } | |
| 2742 } else { | |
| 2743 WARN("NUMA Interleaving is not supported by the operating system."); | |
| 2744 } | |
| 2745 if (!success) { | |
| 2746 if (use_numa_interleaving_specified) WARN("...Ignoring UseNUMAInterleaving flag."); | |
| 2747 } | |
| 2748 return success; | |
| 2749 #undef WARN | |
| 2750 } | |
| 2751 | |
| 2752 // this routine is used whenever we need to reserve a contiguous VA range | |
| 2753 // but we need to make separate VirtualAlloc calls for each piece of the range | |
| 2754 // Reasons for doing this: | |
| 2755 // * UseLargePagesIndividualAllocation was set (normally only needed on WS2003 but possible to be set otherwise) | |
| 2756 // * UseNUMAInterleaving requires a separate node for each piece | |
| 2757 static char* allocate_pages_individually(size_t bytes, char* addr, DWORD flags, DWORD prot, | |
| 2758 bool should_inject_error=false) { | |
| 2759 char * p_buf; | |
| 2760 // note: at setup time we guaranteed that NUMAInterleaveGranularity was aligned up to a page size | |
| 2761 size_t page_size = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
| 2762 size_t chunk_size = UseNUMAInterleaving ? NUMAInterleaveGranularity : page_size; | |
| 2763 | |
| 2764 // first reserve enough address space in advance since we want to be | |
| 2765 // able to break a single contiguous virtual address range into multiple | |
| 2766 // large page commits but WS2003 does not allow reserving large page space | |
| 2767 // so we just use 4K pages for reserve, this gives us a legal contiguous | |
| 2768 // address space. then we will deallocate that reservation, and re alloc | |
| 2769 // using large pages | |
| 2770 const size_t size_of_reserve = bytes + chunk_size; | |
| 2771 if (bytes > size_of_reserve) { | |
| 2772 // Overflowed. | |
| 2773 return NULL; | |
| 2774 } | |
| 2775 p_buf = (char *) VirtualAlloc(addr, | |
| 2776 size_of_reserve, // size of Reserve | |
| 2777 MEM_RESERVE, | |
| 2778 PAGE_READWRITE); | |
| 2779 // If reservation failed, return NULL | |
| 2780 if (p_buf == NULL) return NULL; | |
| 2781 | |
| 2782 os::release_memory(p_buf, bytes + chunk_size); | |
| 2783 | |
| 2784 // we still need to round up to a page boundary (in case we are using large pages) | |
| 2785 // but not to a chunk boundary (in case InterleavingGranularity doesn't align with page size) | |
| 2786 // instead we handle this in the bytes_to_rq computation below | |
| 2787 p_buf = (char *) align_size_up((size_t)p_buf, page_size); | |
| 2788 | |
| 2789 // now go through and allocate one chunk at a time until all bytes are | |
| 2790 // allocated | |
| 2791 size_t bytes_remaining = bytes; | |
| 2792 // An overflow of align_size_up() would have been caught above | |
| 2793 // in the calculation of size_of_reserve. | |
| 2794 char * next_alloc_addr = p_buf; | |
| 2795 HANDLE hProc = GetCurrentProcess(); | |
| 2796 | |
| 2797 #ifdef ASSERT | |
| 2798 // Variable for the failure injection | |
| 2799 long ran_num = os::random(); | |
| 2800 size_t fail_after = ran_num % bytes; | |
| 2801 #endif | |
| 2802 | |
| 2803 int count=0; | |
| 2804 while (bytes_remaining) { | |
| 2805 // select bytes_to_rq to get to the next chunk_size boundary | |
| 2806 | |
| 2807 size_t bytes_to_rq = MIN2(bytes_remaining, chunk_size - ((size_t)next_alloc_addr % chunk_size)); | |
| 2808 // Note allocate and commit | |
| 2809 char * p_new; | |
| 2810 | |
| 2811 #ifdef ASSERT | |
| 2812 bool inject_error_now = should_inject_error && (bytes_remaining <= fail_after); | |
| 2813 #else | |
| 2814 const bool inject_error_now = false; | |
| 2815 #endif | |
| 2816 | |
| 2817 if (inject_error_now) { | |
| 2818 p_new = NULL; | |
| 2819 } else { | |
| 2820 if (!UseNUMAInterleaving) { | |
| 2821 p_new = (char *) VirtualAlloc(next_alloc_addr, | |
| 2822 bytes_to_rq, | |
| 2823 flags, | |
| 2824 prot); | |
| 2825 } else { | |
| 2826 // get the next node to use from the used_node_list | |
|
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2827 assert(numa_node_list_holder.get_count() > 0, "Multiple NUMA nodes expected"); |
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2828 DWORD node = numa_node_list_holder.get_node_list_entry(count % numa_node_list_holder.get_count()); |
| 3885 | 2829 p_new = (char *)os::Kernel32Dll::VirtualAllocExNuma(hProc, |
| 2830 next_alloc_addr, | |
| 2831 bytes_to_rq, | |
| 2832 flags, | |
| 2833 prot, | |
| 2834 node); | |
| 2835 } | |
| 2836 } | |
| 2837 | |
| 2838 if (p_new == NULL) { | |
| 2839 // Free any allocated pages | |
| 2840 if (next_alloc_addr > p_buf) { | |
| 2841 // Some memory was committed so release it. | |
| 2842 size_t bytes_to_release = bytes - bytes_remaining; | |
| 2843 os::release_memory(p_buf, bytes_to_release); | |
| 2844 } | |
| 2845 #ifdef ASSERT | |
| 2846 if (should_inject_error) { | |
| 2847 if (TracePageSizes && Verbose) { | |
| 2848 tty->print_cr("Reserving pages individually failed."); | |
| 2849 } | |
| 2850 } | |
| 2851 #endif | |
| 2852 return NULL; | |
| 2853 } | |
| 2854 bytes_remaining -= bytes_to_rq; | |
| 2855 next_alloc_addr += bytes_to_rq; | |
| 2856 count++; | |
| 2857 } | |
| 2858 // made it this far, success | |
| 2859 return p_buf; | |
| 2860 } | |
| 2861 | |
| 2862 | |
| 2863 | |
|
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2864 void os::large_page_init() { |
|
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2865 if (!UseLargePages) return; |
| 0 | 2866 |
| 2867 // print a warning if any large page related flag is specified on command line | |
| 2868 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
| 2869 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
| 2870 bool success = false; | |
| 2871 | |
| 2872 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
| 2873 if (resolve_functions_for_large_page_init()) { | |
| 2874 if (request_lock_memory_privilege()) { | |
|
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2875 size_t s = os::Kernel32Dll::GetLargePageMinimum(); |
| 0 | 2876 if (s) { |
| 2877 #if defined(IA32) || defined(AMD64) | |
| 2878 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
| 2879 WARN("JVM cannot use large pages bigger than 4mb."); | |
| 2880 } else { | |
| 2881 #endif | |
| 2882 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
| 2883 _large_page_size = LargePageSizeInBytes; | |
| 2884 } else { | |
| 2885 _large_page_size = s; | |
| 2886 } | |
| 2887 success = true; | |
| 2888 #if defined(IA32) || defined(AMD64) | |
| 2889 } | |
| 2890 #endif | |
| 2891 } else { | |
| 2892 WARN("Large page is not supported by the processor."); | |
| 2893 } | |
| 2894 } else { | |
| 2895 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
| 2896 } | |
| 2897 } else { | |
| 2898 WARN("Large page is not supported by the operating system."); | |
| 2899 } | |
| 2900 #undef WARN | |
| 2901 | |
| 2902 const size_t default_page_size = (size_t) vm_page_size(); | |
| 2903 if (success && _large_page_size > default_page_size) { | |
| 2904 _page_sizes[0] = _large_page_size; | |
| 2905 _page_sizes[1] = default_page_size; | |
| 2906 _page_sizes[2] = 0; | |
| 2907 } | |
| 2908 | |
| 2909 cleanup_after_large_page_init(); | |
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2910 UseLargePages = success; |
| 0 | 2911 } |
| 2912 | |
| 2913 // On win32, one cannot release just a part of reserved memory, it's an | |
| 2914 // all or nothing deal. When we split a reservation, we must break the | |
| 2915 // reservation into two reservations. | |
| 2916 void os::split_reserved_memory(char *base, size_t size, size_t split, | |
| 2917 bool realloc) { | |
| 2918 if (size > 0) { | |
| 2919 release_memory(base, size); | |
| 2920 if (realloc) { | |
| 2921 reserve_memory(split, base); | |
| 2922 } | |
| 2923 if (size != split) { | |
| 2924 reserve_memory(size - split, base + split); | |
| 2925 } | |
| 2926 } | |
| 2927 } | |
| 2928 | |
| 2929 char* os::reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { | |
| 2930 assert((size_t)addr % os::vm_allocation_granularity() == 0, | |
| 2931 "reserve alignment"); | |
| 2932 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
| 3885 | 2933 char* res; |
| 2934 // note that if UseLargePages is on, all the areas that require interleaving | |
| 2935 // will go thru reserve_memory_special rather than thru here. | |
| 2936 bool use_individual = (UseNUMAInterleaving && !UseLargePages); | |
| 2937 if (!use_individual) { | |
| 2938 res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); | |
| 2939 } else { | |
| 2940 elapsedTimer reserveTimer; | |
| 2941 if( Verbose && PrintMiscellaneous ) reserveTimer.start(); | |
| 2942 // in numa interleaving, we have to allocate pages individually | |
| 2943 // (well really chunks of NUMAInterleaveGranularity size) | |
| 2944 res = allocate_pages_individually(bytes, addr, MEM_RESERVE, PAGE_READWRITE); | |
| 2945 if (res == NULL) { | |
| 2946 warning("NUMA page allocation failed"); | |
| 2947 } | |
| 2948 if( Verbose && PrintMiscellaneous ) { | |
| 2949 reserveTimer.stop(); | |
| 2950 tty->print_cr("reserve_memory of %Ix bytes took %ld ms (%ld ticks)", bytes, | |
| 2951 reserveTimer.milliseconds(), reserveTimer.ticks()); | |
| 2952 } | |
| 2953 } | |
| 0 | 2954 assert(res == NULL || addr == NULL || addr == res, |
| 2955 "Unexpected address from reserve."); | |
| 3885 | 2956 |
| 0 | 2957 return res; |
| 2958 } | |
| 2959 | |
| 2960 // Reserve memory at an arbitrary address, only if that area is | |
| 2961 // available (and not reserved for something else). | |
| 2962 char* os::attempt_reserve_memory_at(size_t bytes, char* requested_addr) { | |
| 2963 // Windows os::reserve_memory() fails of the requested address range is | |
| 2964 // not avilable. | |
| 2965 return reserve_memory(bytes, requested_addr); | |
| 2966 } | |
| 2967 | |
| 2968 size_t os::large_page_size() { | |
| 2969 return _large_page_size; | |
| 2970 } | |
| 2971 | |
| 2972 bool os::can_commit_large_page_memory() { | |
| 2973 // Windows only uses large page memory when the entire region is reserved | |
| 2974 // and committed in a single VirtualAlloc() call. This may change in the | |
| 2975 // future, but with Windows 2003 it's not possible to commit on demand. | |
| 2976 return false; | |
| 2977 } | |
| 2978 | |
|
79
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|
2979 bool os::can_execute_large_page_memory() { |
|
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|
2980 return true; |
|
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62
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|
2981 } |
|
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|
2982 |
| 656 | 2983 char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) { |
|
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2984 |
| 717 | 2985 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
| 3885 | 2986 const DWORD flags = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 2987 | |
| 2988 // with large pages, there are two cases where we need to use Individual Allocation | |
| 2989 // 1) the UseLargePagesIndividualAllocation flag is set (set by default on WS2003) | |
| 2990 // 2) NUMA Interleaving is enabled, in which case we use a different node for each page | |
| 2991 if (UseLargePagesIndividualAllocation || UseNUMAInterleaving) { | |
|
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|
2992 if (TracePageSizes && Verbose) { |
|
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|
2993 tty->print_cr("Reserving large pages individually."); |
|
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|
2994 } |
| 3885 | 2995 char * p_buf = allocate_pages_individually(bytes, addr, flags, prot, LargePagesIndividualAllocationInjectError); |
| 2996 if (p_buf == NULL) { | |
| 2997 // give an appropriate warning message | |
| 2998 if (UseNUMAInterleaving) { | |
| 2999 warning("NUMA large page allocation failed, UseLargePages flag ignored"); | |
| 3000 } | |
| 3001 if (UseLargePagesIndividualAllocation) { | |
| 3002 warning("Individually allocated large pages failed, " | |
| 3003 "use -XX:-UseLargePagesIndividualAllocation to turn off"); | |
| 3004 } | |
|
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|
3005 return NULL; |
|
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|
3006 } |
|
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|
3007 |
|
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|
3008 return p_buf; |
|
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|
3009 |
|
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|
3010 } else { |
|
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|
3011 // normal policy just allocate it all at once |
|
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|
3012 DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 717 | 3013 char * res = (char *)VirtualAlloc(NULL, bytes, flag, prot); |
|
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|
3014 return res; |
|
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|
3015 } |
| 0 | 3016 } |
| 3017 | |
| 3018 bool os::release_memory_special(char* base, size_t bytes) { | |
| 3019 return release_memory(base, bytes); | |
| 3020 } | |
| 3021 | |
| 3022 void os::print_statistics() { | |
| 3023 } | |
| 3024 | |
| 656 | 3025 bool os::commit_memory(char* addr, size_t bytes, bool exec) { |
| 0 | 3026 if (bytes == 0) { |
| 3027 // Don't bother the OS with noops. | |
| 3028 return true; | |
| 3029 } | |
| 3030 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
| 3031 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
| 3032 // Don't attempt to print anything if the OS call fails. We're | |
| 3033 // probably low on resources, so the print itself may cause crashes. | |
| 3885 | 3034 |
| 3035 // unless we have NUMAInterleaving enabled, the range of a commit | |
| 3036 // is always within a reserve covered by a single VirtualAlloc | |
| 3037 // in that case we can just do a single commit for the requested size | |
| 3038 if (!UseNUMAInterleaving) { | |
| 3039 if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) return false; | |
| 3040 if (exec) { | |
| 3041 DWORD oldprot; | |
| 3042 // Windows doc says to use VirtualProtect to get execute permissions | |
| 3043 if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) return false; | |
| 3044 } | |
| 3045 return true; | |
| 656 | 3046 } else { |
| 3885 | 3047 |
| 3048 // when NUMAInterleaving is enabled, the commit might cover a range that | |
| 3049 // came from multiple VirtualAlloc reserves (using allocate_pages_individually). | |
| 3050 // VirtualQuery can help us determine that. The RegionSize that VirtualQuery | |
| 3051 // returns represents the number of bytes that can be committed in one step. | |
| 3052 size_t bytes_remaining = bytes; | |
| 3053 char * next_alloc_addr = addr; | |
| 3054 while (bytes_remaining > 0) { | |
| 3055 MEMORY_BASIC_INFORMATION alloc_info; | |
| 3056 VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info)); | |
| 3057 size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize); | |
| 3058 if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT, PAGE_READWRITE) == NULL) | |
| 3059 return false; | |
| 3060 if (exec) { | |
| 3061 DWORD oldprot; | |
| 3062 if (!VirtualProtect(next_alloc_addr, bytes_to_rq, PAGE_EXECUTE_READWRITE, &oldprot)) | |
| 3063 return false; | |
| 3064 } | |
| 3065 bytes_remaining -= bytes_to_rq; | |
| 3066 next_alloc_addr += bytes_to_rq; | |
| 3067 } | |
| 3068 } | |
| 3069 // if we made it this far, return true | |
| 3070 return true; | |
| 0 | 3071 } |
| 3072 | |
| 656 | 3073 bool os::commit_memory(char* addr, size_t size, size_t alignment_hint, |
| 3074 bool exec) { | |
| 3075 return commit_memory(addr, size, exec); | |
| 0 | 3076 } |
| 3077 | |
| 3078 bool os::uncommit_memory(char* addr, size_t bytes) { | |
| 3079 if (bytes == 0) { | |
| 3080 // Don't bother the OS with noops. | |
| 3081 return true; | |
| 3082 } | |
| 3083 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
| 3084 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
| 3085 return VirtualFree(addr, bytes, MEM_DECOMMIT) != 0; | |
| 3086 } | |
| 3087 | |
| 3088 bool os::release_memory(char* addr, size_t bytes) { | |
| 3089 return VirtualFree(addr, 0, MEM_RELEASE) != 0; | |
| 3090 } | |
| 3091 | |
|
1320
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1215
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|
3092 bool os::create_stack_guard_pages(char* addr, size_t size) { |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
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1215
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|
3093 return os::commit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
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1215
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|
3094 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
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diff
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|
3095 |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
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|
3096 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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1215
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|
3097 return os::uncommit_memory(addr, size); |
|
3b3d12e645e7
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1215
diff
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|
3098 } |
|
3b3d12e645e7
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|
3099 |
|
237
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|
3100 // Set protections specified |
|
1fdb98a17101
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|
3101 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
|
1fdb98a17101
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196
diff
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|
3102 bool is_committed) { |
|
1fdb98a17101
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196
diff
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|
3103 unsigned int p = 0; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
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|
3104 switch (prot) { |
|
1fdb98a17101
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|
3105 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
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|
3106 case MEM_PROT_READ: p = PAGE_READONLY; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
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|
3107 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
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|
3108 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
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|
3109 default: |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
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|
3110 ShouldNotReachHere(); |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
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|
3111 } |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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|
3112 |
| 0 | 3113 DWORD old_status; |
|
237
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|
3114 |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3115 // Strange enough, but on Win32 one can change protection only for committed |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3116 // memory, not a big deal anyway, as bytes less or equal than 64K |
| 656 | 3117 if (!is_committed && !commit_memory(addr, bytes, prot == MEM_PROT_RWX)) { |
|
237
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6716785: implicit null checks not triggering with CompressedOops
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196
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|
3118 fatal("cannot commit protection page"); |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
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|
3119 } |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
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|
3120 // One cannot use os::guard_memory() here, as on Win32 guard page |
|
1fdb98a17101
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196
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|
3121 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
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|
3122 // |
|
1fdb98a17101
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|
3123 // Pages in the region become guard pages. Any attempt to access a guard page |
|
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|
3124 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
|
1fdb98a17101
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196
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|
3125 // the guard page status. Guard pages thus act as a one-time access alarm. |
|
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196
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|
3126 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
| 0 | 3127 } |
| 3128 | |
| 3129 bool os::guard_memory(char* addr, size_t bytes) { | |
| 3130 DWORD old_status; | |
|
477
24fda36852ce
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467
diff
changeset
|
3131 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
| 0 | 3132 } |
| 3133 | |
| 3134 bool os::unguard_memory(char* addr, size_t bytes) { | |
| 3135 DWORD old_status; | |
|
477
24fda36852ce
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467
diff
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|
3136 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
| 0 | 3137 } |
| 3138 | |
| 3139 void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
|
4734
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4720
diff
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|
3140 void os::free_memory(char *addr, size_t bytes, size_t alignment_hint) { } |
| 0 | 3141 void os::numa_make_global(char *addr, size_t bytes) { } |
| 141 | 3142 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
| 0 | 3143 bool os::numa_topology_changed() { return false; } |
|
3918
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3885
diff
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|
3144 size_t os::numa_get_groups_num() { return MAX2(numa_node_list_holder.get_count(), 1); } |
| 0 | 3145 int os::numa_get_group_id() { return 0; } |
| 3146 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
|
3918
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|
3147 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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3885
diff
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|
3148 // Provide an answer for UMA systems |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3149 ids[0] = 0; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3150 return 1; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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3885
diff
changeset
|
3151 } else { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
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|
3152 // check for size bigger than actual groups_num |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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3885
diff
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|
3153 size = MIN2(size, numa_get_groups_num()); |
|
a6128a8ed624
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3885
diff
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|
3154 for (int i = 0; i < (int)size; i++) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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3885
diff
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|
3155 ids[i] = numa_node_list_holder.get_node_list_entry(i); |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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3885
diff
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|
3156 } |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
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|
3157 return size; |
|
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|
3158 } |
| 0 | 3159 } |
| 3160 | |
| 3161 bool os::get_page_info(char *start, page_info* info) { | |
| 3162 return false; | |
| 3163 } | |
| 3164 | |
| 3165 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 3166 return end; | |
| 3167 } | |
| 3168 | |
| 3169 char* os::non_memory_address_word() { | |
| 3170 // Must never look like an address returned by reserve_memory, | |
| 3171 // even in its subfields (as defined by the CPU immediate fields, | |
| 3172 // if the CPU splits constants across multiple instructions). | |
| 3173 return (char*)-1; | |
| 3174 } | |
| 3175 | |
| 3176 #define MAX_ERROR_COUNT 100 | |
| 3177 #define SYS_THREAD_ERROR 0xffffffffUL | |
| 3178 | |
| 3179 void os::pd_start_thread(Thread* thread) { | |
| 3180 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
| 3181 // Returns previous suspend state: | |
| 3182 // 0: Thread was not suspended | |
| 3183 // 1: Thread is running now | |
| 3184 // >1: Thread is still suspended. | |
| 3185 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
| 3186 } | |
| 3187 | |
| 3188 class HighResolutionInterval { | |
| 3189 // The default timer resolution seems to be 10 milliseconds. | |
| 3190 // (Where is this written down?) | |
| 3191 // If someone wants to sleep for only a fraction of the default, | |
| 3192 // then we set the timer resolution down to 1 millisecond for | |
| 3193 // the duration of their interval. | |
| 3194 // We carefully set the resolution back, since otherwise we | |
| 3195 // seem to incur an overhead (3%?) that we don't need. | |
| 3196 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
| 3197 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
| 3198 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
| 3199 // timeBeginPeriod() if the relative error exceeded some threshold. | |
| 3200 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
| 3201 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
| 3202 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
| 3203 // resolution timers running. | |
| 3204 private: | |
| 3205 jlong resolution; | |
| 3206 public: | |
| 3207 HighResolutionInterval(jlong ms) { | |
| 3208 resolution = ms % 10L; | |
| 3209 if (resolution != 0) { | |
| 3210 MMRESULT result = timeBeginPeriod(1L); | |
| 3211 } | |
| 3212 } | |
| 3213 ~HighResolutionInterval() { | |
| 3214 if (resolution != 0) { | |
| 3215 MMRESULT result = timeEndPeriod(1L); | |
| 3216 } | |
| 3217 resolution = 0L; | |
| 3218 } | |
| 3219 }; | |
| 3220 | |
| 3221 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
| 3222 jlong limit = (jlong) MAXDWORD; | |
| 3223 | |
| 3224 while(ms > limit) { | |
| 3225 int res; | |
| 3226 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
| 3227 return res; | |
| 3228 ms -= limit; | |
| 3229 } | |
| 3230 | |
| 3231 assert(thread == Thread::current(), "thread consistency check"); | |
| 3232 OSThread* osthread = thread->osthread(); | |
| 3233 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
| 3234 int result; | |
| 3235 if (interruptable) { | |
| 3236 assert(thread->is_Java_thread(), "must be java thread"); | |
| 3237 JavaThread *jt = (JavaThread *) thread; | |
| 3238 ThreadBlockInVM tbivm(jt); | |
| 3239 | |
| 3240 jt->set_suspend_equivalent(); | |
| 3241 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3242 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3243 | |
| 3244 HANDLE events[1]; | |
| 3245 events[0] = osthread->interrupt_event(); | |
| 3246 HighResolutionInterval *phri=NULL; | |
| 3247 if(!ForceTimeHighResolution) | |
| 3248 phri = new HighResolutionInterval( ms ); | |
| 3249 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
| 3250 result = OS_TIMEOUT; | |
| 3251 } else { | |
| 3252 ResetEvent(osthread->interrupt_event()); | |
| 3253 osthread->set_interrupted(false); | |
| 3254 result = OS_INTRPT; | |
| 3255 } | |
| 3256 delete phri; //if it is NULL, harmless | |
| 3257 | |
| 3258 // were we externally suspended while we were waiting? | |
| 3259 jt->check_and_wait_while_suspended(); | |
| 3260 } else { | |
| 3261 assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3262 Sleep((long) ms); | |
| 3263 result = OS_TIMEOUT; | |
| 3264 } | |
| 3265 return result; | |
| 3266 } | |
| 3267 | |
| 3268 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3269 void os::infinite_sleep() { | |
| 3270 while (true) { // sleep forever ... | |
| 3271 Sleep(100000); // ... 100 seconds at a time | |
| 3272 } | |
| 3273 } | |
| 3274 | |
| 3275 typedef BOOL (WINAPI * STTSignature)(void) ; | |
| 3276 | |
| 3277 os::YieldResult os::NakedYield() { | |
| 3278 // Use either SwitchToThread() or Sleep(0) | |
| 3279 // Consider passing back the return value from SwitchToThread(). | |
|
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|
3280 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
|
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|
3281 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
| 0 | 3282 } else { |
|
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|
3283 Sleep(0); |
| 0 | 3284 } |
| 3285 return os::YIELD_UNKNOWN ; | |
| 3286 } | |
| 3287 | |
| 3288 void os::yield() { os::NakedYield(); } | |
| 3289 | |
| 3290 void os::yield_all(int attempts) { | |
| 3291 // Yields to all threads, including threads with lower priorities | |
| 3292 Sleep(1); | |
| 3293 } | |
| 3294 | |
| 3295 // Win32 only gives you access to seven real priorities at a time, | |
| 3296 // so we compress Java's ten down to seven. It would be better | |
| 3297 // if we dynamically adjusted relative priorities. | |
| 3298 | |
| 3299 int os::java_to_os_priority[MaxPriority + 1] = { | |
| 3300 THREAD_PRIORITY_IDLE, // 0 Entry should never be used | |
| 3301 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3302 THREAD_PRIORITY_LOWEST, // 2 | |
| 3303 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3304 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3305 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3306 THREAD_PRIORITY_NORMAL, // 6 | |
| 3307 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3308 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
| 3309 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
| 3310 THREAD_PRIORITY_HIGHEST // 10 MaxPriority | |
| 3311 }; | |
| 3312 | |
| 3313 int prio_policy1[MaxPriority + 1] = { | |
| 3314 THREAD_PRIORITY_IDLE, // 0 Entry should never be used | |
| 3315 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3316 THREAD_PRIORITY_LOWEST, // 2 | |
| 3317 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3318 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3319 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3320 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
| 3321 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3322 THREAD_PRIORITY_HIGHEST, // 8 | |
| 3323 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
| 3324 THREAD_PRIORITY_TIME_CRITICAL // 10 MaxPriority | |
| 3325 }; | |
| 3326 | |
| 3327 static int prio_init() { | |
| 3328 // If ThreadPriorityPolicy is 1, switch tables | |
| 3329 if (ThreadPriorityPolicy == 1) { | |
| 3330 int i; | |
| 3331 for (i = 0; i < MaxPriority + 1; i++) { | |
| 3332 os::java_to_os_priority[i] = prio_policy1[i]; | |
| 3333 } | |
| 3334 } | |
| 3335 return 0; | |
| 3336 } | |
| 3337 | |
| 3338 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
| 3339 if (!UseThreadPriorities) return OS_OK; | |
| 3340 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
| 3341 return ret ? OS_OK : OS_ERR; | |
| 3342 } | |
| 3343 | |
| 3344 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
| 3345 if ( !UseThreadPriorities ) { | |
| 3346 *priority_ptr = java_to_os_priority[NormPriority]; | |
| 3347 return OS_OK; | |
| 3348 } | |
| 3349 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
| 3350 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
| 3351 assert(false, "GetThreadPriority failed"); | |
| 3352 return OS_ERR; | |
| 3353 } | |
| 3354 *priority_ptr = os_prio; | |
| 3355 return OS_OK; | |
| 3356 } | |
| 3357 | |
| 3358 | |
| 3359 // Hint to the underlying OS that a task switch would not be good. | |
| 3360 // Void return because it's a hint and can fail. | |
| 3361 void os::hint_no_preempt() {} | |
| 3362 | |
| 3363 void os::interrupt(Thread* thread) { | |
| 3364 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3365 "possibility of dangling Thread pointer"); | |
| 3366 | |
| 3367 OSThread* osthread = thread->osthread(); | |
| 3368 osthread->set_interrupted(true); | |
| 3369 // More than one thread can get here with the same value of osthread, | |
| 3370 // resulting in multiple notifications. We do, however, want the store | |
| 3371 // to interrupted() to be visible to other threads before we post | |
| 3372 // the interrupt event. | |
| 3373 OrderAccess::release(); | |
| 3374 SetEvent(osthread->interrupt_event()); | |
| 3375 // For JSR166: unpark after setting status | |
| 3376 if (thread->is_Java_thread()) | |
| 3377 ((JavaThread*)thread)->parker()->unpark(); | |
| 3378 | |
| 3379 ParkEvent * ev = thread->_ParkEvent ; | |
| 3380 if (ev != NULL) ev->unpark() ; | |
| 3381 | |
| 3382 } | |
| 3383 | |
| 3384 | |
| 3385 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 3386 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3387 "possibility of dangling Thread pointer"); | |
| 3388 | |
| 3389 OSThread* osthread = thread->osthread(); | |
|
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|
3390 bool interrupted = osthread->interrupted(); |
|
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|
3391 // There is no synchronization between the setting of the interrupt |
|
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|
3392 // and it being cleared here. It is critical - see 6535709 - that |
|
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|
3393 // we only clear the interrupt state, and reset the interrupt event, |
|
083f13976b51
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|
3394 // if we are going to report that we were indeed interrupted - else |
|
083f13976b51
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|
3395 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
|
083f13976b51
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|
3396 // depending on the timing |
|
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|
3397 if (interrupted && clear_interrupted) { |
| 0 | 3398 osthread->set_interrupted(false); |
| 3399 ResetEvent(osthread->interrupt_event()); | |
| 3400 } // Otherwise leave the interrupted state alone | |
| 3401 | |
| 3402 return interrupted; | |
| 3403 } | |
| 3404 | |
| 3405 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
| 3406 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 3407 CONTEXT context; | |
| 3408 context.ContextFlags = CONTEXT_CONTROL; | |
| 3409 HANDLE handle = thread->osthread()->thread_handle(); | |
| 3410 #ifdef _M_IA64 | |
| 3411 assert(0, "Fix get_thread_pc"); | |
| 3412 return ExtendedPC(NULL); | |
| 3413 #else | |
| 3414 if (GetThreadContext(handle, &context)) { | |
| 3415 #ifdef _M_AMD64 | |
| 3416 return ExtendedPC((address) context.Rip); | |
| 3417 #else | |
| 3418 return ExtendedPC((address) context.Eip); | |
| 3419 #endif | |
| 3420 } else { | |
| 3421 return ExtendedPC(NULL); | |
| 3422 } | |
| 3423 #endif | |
| 3424 } | |
| 3425 | |
| 3426 // GetCurrentThreadId() returns DWORD | |
| 3427 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
| 3428 | |
| 3429 static int _initial_pid = 0; | |
| 3430 | |
| 3431 int os::current_process_id() | |
| 3432 { | |
| 3433 return (_initial_pid ? _initial_pid : _getpid()); | |
| 3434 } | |
| 3435 | |
| 3436 int os::win32::_vm_page_size = 0; | |
| 3437 int os::win32::_vm_allocation_granularity = 0; | |
| 3438 int os::win32::_processor_type = 0; | |
| 3439 // Processor level is not available on non-NT systems, use vm_version instead | |
| 3440 int os::win32::_processor_level = 0; | |
| 3441 julong os::win32::_physical_memory = 0; | |
| 3442 size_t os::win32::_default_stack_size = 0; | |
| 3443 | |
| 3444 intx os::win32::_os_thread_limit = 0; | |
| 3445 volatile intx os::win32::_os_thread_count = 0; | |
| 3446 | |
| 3447 bool os::win32::_is_nt = false; | |
|
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|
3448 bool os::win32::_is_windows_2003 = false; |
|
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|
3449 bool os::win32::_is_windows_server = false; |
| 0 | 3450 |
| 3451 void os::win32::initialize_system_info() { | |
| 3452 SYSTEM_INFO si; | |
| 3453 GetSystemInfo(&si); | |
| 3454 _vm_page_size = si.dwPageSize; | |
| 3455 _vm_allocation_granularity = si.dwAllocationGranularity; | |
| 3456 _processor_type = si.dwProcessorType; | |
| 3457 _processor_level = si.wProcessorLevel; | |
|
1123
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|
3458 set_processor_count(si.dwNumberOfProcessors); |
| 0 | 3459 |
|
877
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|
3460 MEMORYSTATUSEX ms; |
|
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|
3461 ms.dwLength = sizeof(ms); |
|
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|
3462 |
| 0 | 3463 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
| 3464 // dwMemoryLoad (% of memory in use) | |
|
877
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|
3465 GlobalMemoryStatusEx(&ms); |
|
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diff
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|
3466 _physical_memory = ms.ullTotalPhys; |
| 0 | 3467 |
|
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|
3468 OSVERSIONINFOEX oi; |
|
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|
3469 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
|
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diff
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|
3470 GetVersionEx((OSVERSIONINFO*)&oi); |
| 0 | 3471 switch(oi.dwPlatformId) { |
| 3472 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
|
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|
3473 case VER_PLATFORM_WIN32_NT: |
|
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|
3474 _is_nt = true; |
|
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|
3475 { |
|
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|
3476 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
|
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|
3477 if (os_vers == 5002) { |
|
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|
3478 _is_windows_2003 = true; |
|
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|
3479 } |
|
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|
3480 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
|
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|
3481 oi.wProductType == VER_NT_SERVER) { |
|
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|
3482 _is_windows_server = true; |
|
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|
3483 } |
|
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|
3484 } |
|
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|
3485 break; |
| 0 | 3486 default: fatal("Unknown platform"); |
| 3487 } | |
| 3488 | |
| 3489 _default_stack_size = os::current_stack_size(); | |
| 3490 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
| 3491 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
| 3492 "stack size not a multiple of page size"); | |
| 3493 | |
| 3494 initialize_performance_counter(); | |
| 3495 | |
| 3496 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
| 3497 // known to deadlock the system, if the VM issues to thread operations with | |
| 3498 // a too high frequency, e.g., such as changing the priorities. | |
| 3499 // The 6000 seems to work well - no deadlocks has been notices on the test | |
| 3500 // programs that we have seen experience this problem. | |
| 3501 if (!os::win32::is_nt()) { | |
| 3502 StarvationMonitorInterval = 6000; | |
| 3503 } | |
| 3504 } | |
| 3505 | |
| 3506 | |
|
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|
3507 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
|
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|
3508 char path[MAX_PATH]; |
|
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|
3509 DWORD size; |
|
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|
3510 DWORD pathLen = (DWORD)sizeof(path); |
|
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|
3511 HINSTANCE result = NULL; |
|
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|
3512 |
|
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|
3513 // only allow library name without path component |
|
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|
3514 assert(strchr(name, '\\') == NULL, "path not allowed"); |
|
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|
3515 assert(strchr(name, ':') == NULL, "path not allowed"); |
|
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|
3516 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
|
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|
3517 jio_snprintf(ebuf, ebuflen, |
|
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|
3518 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
|
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|
3519 return NULL; |
|
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changeset
|
3520 } |
|
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|
3521 |
|
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|
3522 // search system directory |
|
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diff
changeset
|
3523 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
|
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diff
changeset
|
3524 strcat(path, "\\"); |
|
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diff
changeset
|
3525 strcat(path, name); |
|
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diff
changeset
|
3526 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
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changeset
|
3527 return result; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3528 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3529 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3530 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3531 // try Windows directory |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3532 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3533 strcat(path, "\\"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3534 strcat(path, name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3535 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3536 return result; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3537 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3538 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3539 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3540 jio_snprintf(ebuf, ebuflen, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3541 "os::win32::load_windows_dll() cannot load %s from system directories.", name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3542 return NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3543 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3544 |
| 0 | 3545 void os::win32::setmode_streams() { |
| 3546 _setmode(_fileno(stdin), _O_BINARY); | |
| 3547 _setmode(_fileno(stdout), _O_BINARY); | |
| 3548 _setmode(_fileno(stderr), _O_BINARY); | |
| 3549 } | |
| 3550 | |
| 3551 | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3552 bool os::is_debugger_attached() { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3553 return IsDebuggerPresent() ? true : false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3554 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3555 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3556 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3557 void os::wait_for_keypress_at_exit(void) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3558 if (PauseAtExit) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3559 fprintf(stderr, "Press any key to continue...\n"); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3560 fgetc(stdin); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3561 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3562 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3563 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3564 |
| 0 | 3565 int os::message_box(const char* title, const char* message) { |
| 3566 int result = MessageBox(NULL, message, title, | |
| 3567 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
| 3568 return result == IDYES; | |
| 3569 } | |
| 3570 | |
| 3571 int os::allocate_thread_local_storage() { | |
| 3572 return TlsAlloc(); | |
| 3573 } | |
| 3574 | |
| 3575 | |
| 3576 void os::free_thread_local_storage(int index) { | |
| 3577 TlsFree(index); | |
| 3578 } | |
| 3579 | |
| 3580 | |
| 3581 void os::thread_local_storage_at_put(int index, void* value) { | |
| 3582 TlsSetValue(index, value); | |
| 3583 assert(thread_local_storage_at(index) == value, "Just checking"); | |
| 3584 } | |
| 3585 | |
| 3586 | |
| 3587 void* os::thread_local_storage_at(int index) { | |
| 3588 return TlsGetValue(index); | |
| 3589 } | |
| 3590 | |
| 3591 | |
| 3592 #ifndef PRODUCT | |
| 3593 #ifndef _WIN64 | |
| 3594 // Helpers to check whether NX protection is enabled | |
| 3595 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
| 3596 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 3597 pex->ExceptionRecord->NumberParameters > 0 && | |
| 3598 pex->ExceptionRecord->ExceptionInformation[0] == | |
| 3599 EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 3600 return EXCEPTION_EXECUTE_HANDLER; | |
| 3601 } | |
| 3602 return EXCEPTION_CONTINUE_SEARCH; | |
| 3603 } | |
| 3604 | |
| 3605 void nx_check_protection() { | |
| 3606 // If NX is enabled we'll get an exception calling into code on the stack | |
| 3607 char code[] = { (char)0xC3 }; // ret | |
| 3608 void *code_ptr = (void *)code; | |
| 3609 __try { | |
| 3610 __asm call code_ptr | |
| 3611 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
| 3612 tty->print_raw_cr("NX protection detected."); | |
| 3613 } | |
| 3614 } | |
| 3615 #endif // _WIN64 | |
| 3616 #endif // PRODUCT | |
| 3617 | |
| 3618 // this is called _before_ the global arguments have been parsed | |
| 3619 void os::init(void) { | |
| 3620 _initial_pid = _getpid(); | |
| 3621 | |
| 3622 init_random(1234567); | |
| 3623 | |
| 3624 win32::initialize_system_info(); | |
| 3625 win32::setmode_streams(); | |
| 3626 init_page_sizes((size_t) win32::vm_page_size()); | |
| 3627 | |
| 3628 // For better scalability on MP systems (must be called after initialize_system_info) | |
| 3629 #ifndef PRODUCT | |
| 3630 if (is_MP()) { | |
| 3631 NoYieldsInMicrolock = true; | |
| 3632 } | |
| 3633 #endif | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3634 // This may be overridden later when argument processing is done. |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3635 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3636 os::win32::is_windows_2003()); |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3637 |
| 0 | 3638 // Initialize main_process and main_thread |
| 3639 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3640 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
| 0 | 3641 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
| 3642 fatal("DuplicateHandle failed\n"); | |
| 3643 } | |
| 3644 main_thread_id = (int) GetCurrentThreadId(); | |
| 3645 } | |
| 3646 | |
| 3647 // To install functions for atexit processing | |
| 3648 extern "C" { | |
| 3649 static void perfMemory_exit_helper() { | |
| 3650 perfMemory_exit(); | |
| 3651 } | |
| 3652 } | |
| 3653 | |
| 3654 // this is called _after_ the global arguments have been parsed | |
| 3655 jint os::init_2(void) { | |
| 3656 // Allocate a single page and mark it as readable for safepoint polling | |
| 3657 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
| 3658 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
| 3659 | |
| 3660 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
| 3661 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
| 3662 | |
| 3663 os::set_polling_page( polling_page ); | |
| 3664 | |
| 3665 #ifndef PRODUCT | |
| 3666 if( Verbose && PrintMiscellaneous ) | |
| 3667 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 3668 #endif | |
| 3669 | |
| 3670 if (!UseMembar) { | |
| 656 | 3671 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
| 0 | 3672 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
| 3673 | |
| 656 | 3674 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
| 0 | 3675 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
| 3676 | |
| 3677 os::set_memory_serialize_page( mem_serialize_page ); | |
| 3678 | |
| 3679 #ifndef PRODUCT | |
| 3680 if(Verbose && PrintMiscellaneous) | |
| 3681 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 3682 #endif | |
| 3885 | 3683 } |
| 0 | 3684 |
|
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3685 os::large_page_init(); |
| 0 | 3686 |
| 3687 // Setup Windows Exceptions | |
| 3688 | |
| 3689 // On Itanium systems, Structured Exception Handling does not | |
| 3690 // work since stack frames must be walkable by the OS. Since | |
| 3691 // much of our code is dynamically generated, and we do not have | |
| 3692 // proper unwind .xdata sections, the system simply exits | |
| 3693 // rather than delivering the exception. To work around | |
| 3694 // this we use VectorExceptions instead. | |
| 3695 #ifdef _WIN64 | |
| 3696 if (UseVectoredExceptions) { | |
| 3697 topLevelVectoredExceptionHandler = AddVectoredExceptionHandler( 1, topLevelExceptionFilter); | |
| 3698 } | |
| 3699 #endif | |
| 3700 | |
| 3701 // for debugging float code generation bugs | |
| 3702 if (ForceFloatExceptions) { | |
| 3703 #ifndef _WIN64 | |
| 3704 static long fp_control_word = 0; | |
| 3705 __asm { fstcw fp_control_word } | |
| 3706 // see Intel PPro Manual, Vol. 2, p 7-16 | |
| 3707 const long precision = 0x20; | |
| 3708 const long underflow = 0x10; | |
| 3709 const long overflow = 0x08; | |
| 3710 const long zero_div = 0x04; | |
| 3711 const long denorm = 0x02; | |
| 3712 const long invalid = 0x01; | |
| 3713 fp_control_word |= invalid; | |
| 3714 __asm { fldcw fp_control_word } | |
| 3715 #endif | |
| 3716 } | |
| 3717 | |
| 3718 // If stack_commit_size is 0, windows will reserve the default size, | |
| 3719 // but only commit a small portion of it. | |
| 3720 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
| 3721 size_t default_reserve_size = os::win32::default_stack_size(); | |
| 3722 size_t actual_reserve_size = stack_commit_size; | |
| 3723 if (stack_commit_size < default_reserve_size) { | |
| 3724 // If stack_commit_size == 0, we want this too | |
| 3725 actual_reserve_size = default_reserve_size; | |
| 3726 } | |
| 3727 | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3728 // Check minimum allowable stack size for thread creation and to initialize |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3729 // the java system classes, including StackOverflowError - depends on page |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3730 // size. Add a page for compiler2 recursion in main thread. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3731 // Add in 2*BytesPerWord times page size to account for VM stack during |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3732 // class initialization depending on 32 or 64 bit VM. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3733 size_t min_stack_allowed = |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3734 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3735 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3736 if (actual_reserve_size < min_stack_allowed) { |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3737 tty->print_cr("\nThe stack size specified is too small, " |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3738 "Specify at least %dk", |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3739 min_stack_allowed / K); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3740 return JNI_ERR; |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3741 } |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3742 |
| 0 | 3743 JavaThread::set_stack_size_at_create(stack_commit_size); |
| 3744 | |
| 3745 // Calculate theoretical max. size of Threads to guard gainst artifical | |
| 3746 // out-of-memory situations, where all available address-space has been | |
| 3747 // reserved by thread stacks. | |
| 3748 assert(actual_reserve_size != 0, "Must have a stack"); | |
| 3749 | |
| 3750 // Calculate the thread limit when we should start doing Virtual Memory | |
| 3751 // banging. Currently when the threads will have used all but 200Mb of space. | |
| 3752 // | |
| 3753 // TODO: consider performing a similar calculation for commit size instead | |
| 3754 // as reserve size, since on a 64-bit platform we'll run into that more | |
| 3755 // often than running out of virtual memory space. We can use the | |
| 3756 // lower value of the two calculations as the os_thread_limit. | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
79
diff
changeset
|
3757 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
| 0 | 3758 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
| 3759 | |
| 3760 // at exit methods are called in the reverse order of their registration. | |
| 3761 // there is no limit to the number of functions registered. atexit does | |
| 3762 // not set errno. | |
| 3763 | |
| 3764 if (PerfAllowAtExitRegistration) { | |
| 3765 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 3766 // atexit functions can be delayed until process exit time, which | |
| 3767 // can be problematic for embedded VM situations. Embedded VMs should | |
| 3768 // call DestroyJavaVM() to assure that VM resources are released. | |
| 3769 | |
| 3770 // note: perfMemory_exit_helper atexit function may be removed in | |
| 3771 // the future if the appropriate cleanup code can be added to the | |
| 3772 // VM_Exit VMOperation's doit method. | |
| 3773 if (atexit(perfMemory_exit_helper) != 0) { | |
| 3774 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
| 3775 } | |
| 3776 } | |
| 3777 | |
| 3778 #ifndef _WIN64 | |
| 3779 // Print something if NX is enabled (win32 on AMD64) | |
| 3780 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
| 3781 #endif | |
| 3782 | |
| 3783 // initialize thread priority policy | |
| 3784 prio_init(); | |
| 3785 | |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3786 if (UseNUMA && !ForceNUMA) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3787 UseNUMA = false; // We don't fully support this yet |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3788 } |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3789 |
| 3885 | 3790 if (UseNUMAInterleaving) { |
| 3791 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
| 3792 bool success = numa_interleaving_init(); | |
| 3793 if (!success) UseNUMAInterleaving = false; | |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3794 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3795 |
| 0 | 3796 return JNI_OK; |
| 3797 } | |
| 3798 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3799 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3800 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3801 } |
| 0 | 3802 |
| 3803 // Mark the polling page as unreadable | |
| 3804 void os::make_polling_page_unreadable(void) { | |
| 3805 DWORD old_status; | |
| 3806 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
| 3807 fatal("Could not disable polling page"); | |
| 3808 }; | |
| 3809 | |
| 3810 // Mark the polling page as readable | |
| 3811 void os::make_polling_page_readable(void) { | |
| 3812 DWORD old_status; | |
| 3813 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
| 3814 fatal("Could not enable polling page"); | |
| 3815 }; | |
| 3816 | |
| 3817 | |
| 3818 int os::stat(const char *path, struct stat *sbuf) { | |
| 3819 char pathbuf[MAX_PATH]; | |
| 3820 if (strlen(path) > MAX_PATH - 1) { | |
| 3821 errno = ENAMETOOLONG; | |
| 3822 return -1; | |
| 3823 } | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3824 os::native_path(strcpy(pathbuf, path)); |
| 0 | 3825 int ret = ::stat(pathbuf, sbuf); |
| 3826 if (sbuf != NULL && UseUTCFileTimestamp) { | |
| 3827 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
| 3828 // the system timezone and so can return different values for the | |
| 3829 // same file if/when daylight savings time changes. This adjustment | |
| 3830 // makes sure the same timestamp is returned regardless of the TZ. | |
| 3831 // | |
| 3832 // See: | |
| 3833 // http://msdn.microsoft.com/library/ | |
| 3834 // default.asp?url=/library/en-us/sysinfo/base/ | |
| 3835 // time_zone_information_str.asp | |
| 3836 // and | |
| 3837 // http://msdn.microsoft.com/library/default.asp?url= | |
| 3838 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
| 3839 // | |
| 3840 // NOTE: there is a insidious bug here: If the timezone is changed | |
| 3841 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
| 3842 // the adjustment we do here will be wrong and we'll return the wrong | |
| 3843 // value (which will likely end up creating an invalid class data | |
| 3844 // archive). Absent a better API for this, or some time zone locking | |
| 3845 // mechanism, we'll have to live with this risk. | |
| 3846 TIME_ZONE_INFORMATION tz; | |
| 3847 DWORD tzid = GetTimeZoneInformation(&tz); | |
| 3848 int daylightBias = | |
| 3849 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
| 3850 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
| 3851 } | |
| 3852 return ret; | |
| 3853 } | |
| 3854 | |
| 3855 | |
| 3856 #define FT2INT64(ft) \ | |
| 3857 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
| 3858 | |
| 3859 | |
| 3860 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 3861 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 3862 // of a thread. | |
| 3863 // | |
| 3864 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
| 3865 // the fast estimate available on the platform. | |
| 3866 | |
| 3867 // current_thread_cpu_time() is not optimized for Windows yet | |
| 3868 jlong os::current_thread_cpu_time() { | |
| 3869 // return user + sys since the cost is the same | |
| 3870 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
| 3871 } | |
| 3872 | |
| 3873 jlong os::thread_cpu_time(Thread* thread) { | |
| 3874 // consistent with what current_thread_cpu_time() returns. | |
| 3875 return os::thread_cpu_time(thread, true /* user+sys */); | |
| 3876 } | |
| 3877 | |
| 3878 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 3879 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 3880 } | |
| 3881 | |
| 3882 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
| 3883 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
| 3884 // If this function changes, os::is_thread_cpu_time_supported() should too | |
| 3885 if (os::win32::is_nt()) { | |
| 3886 FILETIME CreationTime; | |
| 3887 FILETIME ExitTime; | |
| 3888 FILETIME KernelTime; | |
| 3889 FILETIME UserTime; | |
| 3890 | |
| 3891 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
| 3892 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 3893 return -1; | |
| 3894 else | |
| 3895 if (user_sys_cpu_time) { | |
| 3896 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
| 3897 } else { | |
| 3898 return FT2INT64(UserTime) * 100; | |
| 3899 } | |
| 3900 } else { | |
| 3901 return (jlong) timeGetTime() * 1000000; | |
| 3902 } | |
| 3903 } | |
| 3904 | |
| 3905 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 3906 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 3907 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 3908 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 3909 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 3910 } | |
| 3911 | |
| 3912 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 3913 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 3914 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 3915 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 3916 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 3917 } | |
| 3918 | |
| 3919 bool os::is_thread_cpu_time_supported() { | |
| 3920 // see os::thread_cpu_time | |
| 3921 if (os::win32::is_nt()) { | |
| 3922 FILETIME CreationTime; | |
| 3923 FILETIME ExitTime; | |
| 3924 FILETIME KernelTime; | |
| 3925 FILETIME UserTime; | |
| 3926 | |
| 3927 if ( GetThreadTimes(GetCurrentThread(), | |
| 3928 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 3929 return false; | |
| 3930 else | |
| 3931 return true; | |
| 3932 } else { | |
| 3933 return false; | |
| 3934 } | |
| 3935 } | |
| 3936 | |
| 3937 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
| 3938 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
| 3939 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
| 3940 // If we wanted to implement loadavg on Windows, we have a few options: | |
| 3941 // | |
| 3942 // a) Query CPU usage and run queue length and "fake" an answer by | |
| 3943 // returning the CPU usage if it's under 100%, and the run queue | |
| 3944 // length otherwise. It turns out that querying is pretty slow | |
| 3945 // on Windows, on the order of 200 microseconds on a fast machine. | |
| 3946 // Note that on the Windows the CPU usage value is the % usage | |
| 3947 // since the last time the API was called (and the first call | |
| 3948 // returns 100%), so we'd have to deal with that as well. | |
| 3949 // | |
| 3950 // b) Sample the "fake" answer using a sampling thread and store | |
| 3951 // the answer in a global variable. The call to loadavg would | |
| 3952 // just return the value of the global, avoiding the slow query. | |
| 3953 // | |
| 3954 // c) Sample a better answer using exponential decay to smooth the | |
| 3955 // value. This is basically the algorithm used by UNIX kernels. | |
| 3956 // | |
| 3957 // Note that sampling thread starvation could affect both (b) and (c). | |
| 3958 int os::loadavg(double loadavg[], int nelem) { | |
| 3959 return -1; | |
| 3960 } | |
| 3961 | |
| 3962 | |
| 3963 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
| 3964 bool os::dont_yield() { | |
| 3965 return DontYieldALot; | |
| 3966 } | |
| 3967 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3968 // This method is a slightly reworked copy of JDK's sysOpen |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3969 // 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
|
3970 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3971 int os::open(const char *path, int oflag, int mode) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3972 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3973 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3974 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3975 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3976 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3977 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3978 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3979 return ::open(pathbuf, oflag | O_BINARY | O_NOINHERIT, mode); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3980 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3981 |
| 0 | 3982 // Is a (classpath) directory empty? |
| 3983 bool os::dir_is_empty(const char* path) { | |
| 3984 WIN32_FIND_DATA fd; | |
| 3985 HANDLE f = FindFirstFile(path, &fd); | |
| 3986 if (f == INVALID_HANDLE_VALUE) { | |
| 3987 return true; | |
| 3988 } | |
| 3989 FindClose(f); | |
| 3990 return false; | |
| 3991 } | |
| 3992 | |
| 3993 // create binary file, rewriting existing file if required | |
| 3994 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 3995 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
| 3996 if (!rewrite_existing) { | |
| 3997 oflags |= _O_EXCL; | |
| 3998 } | |
| 3999 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
| 4000 } | |
| 4001 | |
| 4002 // return current position of file pointer | |
| 4003 jlong os::current_file_offset(int fd) { | |
| 4004 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
| 4005 } | |
| 4006 | |
| 4007 // move file pointer to the specified offset | |
| 4008 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 4009 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
| 4010 } | |
| 4011 | |
| 4012 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4013 jlong os::lseek(int fd, jlong offset, int whence) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4014 return (jlong) ::_lseeki64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4015 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4016 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4017 // This method is a slightly reworked copy of JDK's sysNativePath |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4018 // from src/windows/hpi/src/path_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4019 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4020 /* Convert a pathname to native format. On win32, this involves forcing all |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4021 separators to be '\\' rather than '/' (both are legal inputs, but Win95 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4022 sometimes rejects '/') and removing redundant separators. The input path is |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4023 assumed to have been converted into the character encoding used by the local |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4024 system. Because this might be a double-byte encoding, care is taken to |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4025 treat double-byte lead characters correctly. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4026 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4027 This procedure modifies the given path in place, as the result is never |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4028 longer than the original. There is no error return; this operation always |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4029 succeeds. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4030 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4031 char *src = path, *dst = path, *end = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4032 char *colon = NULL; /* If a drive specifier is found, this will |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4033 point to the colon following the drive |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4034 letter */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4035 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4036 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4037 assert(((!::IsDBCSLeadByte('/')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4038 && (!::IsDBCSLeadByte('\\')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4039 && (!::IsDBCSLeadByte(':'))), |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4040 "Illegal lead byte"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4041 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4042 /* Check for leading separators */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4043 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4044 while (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4045 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4046 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4047 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4048 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4049 /* Remove leading separators if followed by drive specifier. This |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4050 hack is necessary to support file URLs containing drive |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4051 specifiers (e.g., "file://c:/path"). As a side effect, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4052 "/c:/path" can be used as an alternative to "c:/path". */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4053 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4054 colon = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4055 *dst++ = ':'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4056 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4057 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4058 src = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4059 if (isfilesep(src[0]) && isfilesep(src[1])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4060 /* UNC pathname: Retain first separator; leave src pointed at |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4061 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
|
4062 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
|
4063 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
|
4064 src = dst = path + 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4065 path[0] = '\\'; /* Force first separator to '\\' */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4066 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4067 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4068 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4069 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4070 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4071 /* 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
|
4072 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
|
4073 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
|
4074 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
|
4075 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4076 while (*src != '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4077 if (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4078 *dst++ = '\\'; src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4079 while (isfilesep(*src)) src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4080 if (*src == '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4081 /* Check for trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4082 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4083 if (colon == dst - 2) break; /* "z:\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4084 if (dst == path + 1) break; /* "\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4085 if (dst == path + 2 && isfilesep(path[0])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4086 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4087 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
|
4088 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
|
4089 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
|
4090 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
|
4091 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
|
4092 directory of the current drive. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4093 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4094 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4095 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
|
4096 remove trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4097 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4098 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4099 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4100 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4101 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4102 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4103 if (*src) *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4104 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4105 } else { /* Copy a single-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4106 char c = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4107 *dst++ = c; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4108 /* Space is not a legal ending character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4109 if (c != ' ') end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4110 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4111 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4112 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4113 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4114 *end = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4115 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4116 /* 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
|
4117 if (colon == dst - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4118 path[2] = '.'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4119 path[3] = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4120 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4121 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4122 #ifdef DEBUG |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4123 jio_fprintf(stderr, "sysNativePath: %s\n", path); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4124 #endif DEBUG |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4125 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4126 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4127 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4128 // 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
|
4129 // 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
|
4130 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4131 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4132 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4133 long high = (long)(length >> 32); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4134 DWORD ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4135 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4136 if (h == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4137 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4138 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4139 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4140 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4141 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4142 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4143 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4144 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4145 if (::SetEndOfFile(h) == FALSE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4146 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4147 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4148 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4149 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4150 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4151 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4152 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4153 // 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
|
4154 // 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
|
4155 // 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
|
4156 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4157 int os::fsync(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4158 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4159 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4160 if ( (!::FlushFileBuffers(handle)) && |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4161 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4162 /* from winerror.h */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4163 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4164 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4165 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4166 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4167 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4168 static int nonSeekAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4169 static int stdinAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4170 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4171 #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
|
4172 #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
|
4173 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4174 // 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
|
4175 // 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
|
4176 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4177 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4178 jlong cur, end; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4179 struct _stati64 stbuf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4180 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4181 if (::_fstati64(fd, &stbuf64) >= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4182 int mode = stbuf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4183 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4184 int ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4185 long lpbytes; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4186 if (fd == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4187 ret = stdinAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4188 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4189 ret = nonSeekAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4190 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4191 (*bytes) = (jlong)(lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4192 return ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4193 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4194 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4195 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4196 } 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
|
4197 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4198 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4199 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4200 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4201 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4202 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4203 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4204 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4205 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4206 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4207 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4208 // 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
|
4209 // 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
|
4210 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4211 static int nonSeekAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4212 /* 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
|
4213 * (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
|
4214 * connected to an exec'd process). |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4215 * Standard Input is a special case. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4216 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4217 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4218 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4219 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4220 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4221 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4222 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4223 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4224 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
|
4225 /* 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
|
4226 * 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
|
4227 * 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
|
4228 * The only alternative is to raise an Exception, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4229 * which isn't really warranted. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4230 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4231 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4232 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4233 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4234 *pbytes = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4235 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4236 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4237 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4238 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4239 #define MAX_INPUT_EVENTS 2000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4240 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4241 // 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
|
4242 // 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
|
4243 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4244 static int stdinAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4245 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4246 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
|
4247 DWORD numEvents = 0; /* Number of events in buffer */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4248 DWORD i = 0; /* Loop index */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4249 DWORD curLength = 0; /* Position marker */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4250 DWORD actualLength = 0; /* Number of bytes readable */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4251 BOOL error = FALSE; /* Error holder */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4252 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
|
4253 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4254 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
|
4255 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4256 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4257 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4258 /* 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
|
4259 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4260 if (error == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4261 return nonSeekAvailable(fd, pbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4262 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4263 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4264 /* 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
|
4265 if (numEvents > MAX_INPUT_EVENTS) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4266 numEvents = MAX_INPUT_EVENTS; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4267 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4268 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4269 lpBuffer = (INPUT_RECORD *)os::malloc(numEvents * sizeof(INPUT_RECORD)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4270 if (lpBuffer == NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4271 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4272 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4273 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4274 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4275 if (error == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4276 os::free(lpBuffer); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4277 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4278 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4279 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4280 /* 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
|
4281 for(i=0; i<numEvents; i++) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4282 if (lpBuffer[i].EventType == KEY_EVENT) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4283 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4284 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4285 &(lpBuffer[i].Event); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4286 if (keyRecord->bKeyDown == TRUE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4287 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4288 curLength++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4289 if (*keyPressed == '\r') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4290 actualLength = curLength; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4291 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4292 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4293 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4294 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4295 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4296 if(lpBuffer != NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4297 os::free(lpBuffer); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4298 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4299 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4300 *pbytes = (long) actualLength; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4301 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4302 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4303 |
| 0 | 4304 // Map a block of memory. |
| 4305 char* os::map_memory(int fd, const char* file_name, size_t file_offset, | |
| 4306 char *addr, size_t bytes, bool read_only, | |
| 4307 bool allow_exec) { | |
| 4308 HANDLE hFile; | |
| 4309 char* base; | |
| 4310 | |
| 4311 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
| 4312 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
| 4313 if (hFile == NULL) { | |
| 4314 if (PrintMiscellaneous && Verbose) { | |
| 4315 DWORD err = GetLastError(); | |
| 4316 tty->print_cr("CreateFile() failed: GetLastError->%ld."); | |
| 4317 } | |
| 4318 return NULL; | |
| 4319 } | |
| 4320 | |
| 4321 if (allow_exec) { | |
| 4322 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
| 4323 // unless it comes from a PE image (which the shared archive is not.) | |
| 4324 // Even VirtualProtect refuses to give execute access to mapped memory | |
| 4325 // that was not previously executable. | |
| 4326 // | |
| 4327 // Instead, stick the executable region in anonymous memory. Yuck. | |
| 4328 // Penalty is that ~4 pages will not be shareable - in the future | |
| 4329 // we might consider DLLizing the shared archive with a proper PE | |
| 4330 // header so that mapping executable + sharing is possible. | |
| 4331 | |
| 4332 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
| 4333 PAGE_READWRITE); | |
| 4334 if (base == NULL) { | |
| 4335 if (PrintMiscellaneous && Verbose) { | |
| 4336 DWORD err = GetLastError(); | |
| 4337 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
| 4338 } | |
| 4339 CloseHandle(hFile); | |
| 4340 return NULL; | |
| 4341 } | |
| 4342 | |
| 4343 DWORD bytes_read; | |
| 4344 OVERLAPPED overlapped; | |
| 4345 overlapped.Offset = (DWORD)file_offset; | |
| 4346 overlapped.OffsetHigh = 0; | |
| 4347 overlapped.hEvent = NULL; | |
| 4348 // ReadFile guarantees that if the return value is true, the requested | |
| 4349 // number of bytes were read before returning. | |
| 4350 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
| 4351 if (!res) { | |
| 4352 if (PrintMiscellaneous && Verbose) { | |
| 4353 DWORD err = GetLastError(); | |
| 4354 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
| 4355 } | |
| 4356 release_memory(base, bytes); | |
| 4357 CloseHandle(hFile); | |
| 4358 return NULL; | |
| 4359 } | |
| 4360 } else { | |
| 4361 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
| 4362 NULL /*file_name*/); | |
| 4363 if (hMap == NULL) { | |
| 4364 if (PrintMiscellaneous && Verbose) { | |
| 4365 DWORD err = GetLastError(); | |
| 4366 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld."); | |
| 4367 } | |
| 4368 CloseHandle(hFile); | |
| 4369 return NULL; | |
| 4370 } | |
| 4371 | |
| 4372 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
| 4373 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
| 4374 (DWORD)bytes, addr); | |
| 4375 if (base == NULL) { | |
| 4376 if (PrintMiscellaneous && Verbose) { | |
| 4377 DWORD err = GetLastError(); | |
| 4378 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
| 4379 } | |
| 4380 CloseHandle(hMap); | |
| 4381 CloseHandle(hFile); | |
| 4382 return NULL; | |
| 4383 } | |
| 4384 | |
| 4385 if (CloseHandle(hMap) == 0) { | |
| 4386 if (PrintMiscellaneous && Verbose) { | |
| 4387 DWORD err = GetLastError(); | |
| 4388 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
| 4389 } | |
| 4390 CloseHandle(hFile); | |
| 4391 return base; | |
| 4392 } | |
| 4393 } | |
| 4394 | |
| 4395 if (allow_exec) { | |
| 4396 DWORD old_protect; | |
| 4397 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
| 4398 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
| 4399 | |
| 4400 if (!res) { | |
| 4401 if (PrintMiscellaneous && Verbose) { | |
| 4402 DWORD err = GetLastError(); | |
| 4403 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
| 4404 } | |
| 4405 // Don't consider this a hard error, on IA32 even if the | |
| 4406 // VirtualProtect fails, we should still be able to execute | |
| 4407 CloseHandle(hFile); | |
| 4408 return base; | |
| 4409 } | |
| 4410 } | |
| 4411 | |
| 4412 if (CloseHandle(hFile) == 0) { | |
| 4413 if (PrintMiscellaneous && Verbose) { | |
| 4414 DWORD err = GetLastError(); | |
| 4415 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
| 4416 } | |
| 4417 return base; | |
| 4418 } | |
| 4419 | |
| 4420 return base; | |
| 4421 } | |
| 4422 | |
| 4423 | |
| 4424 // Remap a block of memory. | |
| 4425 char* os::remap_memory(int fd, const char* file_name, size_t file_offset, | |
| 4426 char *addr, size_t bytes, bool read_only, | |
| 4427 bool allow_exec) { | |
| 4428 // This OS does not allow existing memory maps to be remapped so we | |
| 4429 // have to unmap the memory before we remap it. | |
| 4430 if (!os::unmap_memory(addr, bytes)) { | |
| 4431 return NULL; | |
| 4432 } | |
| 4433 | |
| 4434 // There is a very small theoretical window between the unmap_memory() | |
| 4435 // call above and the map_memory() call below where a thread in native | |
| 4436 // code may be able to access an address that is no longer mapped. | |
| 4437 | |
| 4438 return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only, | |
| 4439 allow_exec); | |
| 4440 } | |
| 4441 | |
| 4442 | |
| 4443 // Unmap a block of memory. | |
| 4444 // Returns true=success, otherwise false. | |
| 4445 | |
| 4446 bool os::unmap_memory(char* addr, size_t bytes) { | |
| 4447 BOOL result = UnmapViewOfFile(addr); | |
| 4448 if (result == 0) { | |
| 4449 if (PrintMiscellaneous && Verbose) { | |
| 4450 DWORD err = GetLastError(); | |
| 4451 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
| 4452 } | |
| 4453 return false; | |
| 4454 } | |
| 4455 return true; | |
| 4456 } | |
| 4457 | |
| 4458 void os::pause() { | |
| 4459 char filename[MAX_PATH]; | |
| 4460 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 4461 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 4462 } else { | |
| 4463 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 4464 } | |
| 4465 | |
| 4466 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 4467 if (fd != -1) { | |
| 4468 struct stat buf; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4469 ::close(fd); |
| 0 | 4470 while (::stat(filename, &buf) == 0) { |
| 4471 Sleep(100); | |
| 4472 } | |
| 4473 } else { | |
| 4474 jio_fprintf(stderr, | |
| 4475 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 4476 } | |
| 4477 } | |
| 4478 | |
| 4479 // An Event wraps a win32 "CreateEvent" kernel handle. | |
| 4480 // | |
| 4481 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
| 4482 // | |
| 4483 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
| 4484 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
| 4485 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
| 4486 // In addition, an unpark() operation might fetch the handle field, but the | |
| 4487 // event could recycle between the fetch and the SetEvent() operation. | |
| 4488 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
| 4489 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
| 4490 // on an stale but recycled handle would be harmless, but in practice this might | |
| 4491 // confuse other non-Sun code, so it's not a viable approach. | |
| 4492 // | |
| 4493 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
| 4494 // with the Event. The event handle is never closed. This could be construed | |
| 4495 // as handle leakage, but only up to the maximum # of threads that have been extant | |
| 4496 // at any one time. This shouldn't be an issue, as windows platforms typically | |
| 4497 // permit a process to have hundreds of thousands of open handles. | |
| 4498 // | |
| 4499 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
| 4500 // and release unused handles. | |
| 4501 // | |
| 4502 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
| 4503 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
| 4504 // | |
| 4505 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
| 4506 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
| 4507 // | |
| 4508 // We use (2). | |
| 4509 // | |
| 4510 // TODO-FIXME: | |
| 4511 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
| 4512 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
| 4513 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
| 4514 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
| 4515 // into a single win32 CreateEvent() handle. | |
| 4516 // | |
| 4517 // _Event transitions in park() | |
| 4518 // -1 => -1 : illegal | |
| 4519 // 1 => 0 : pass - return immediately | |
| 4520 // 0 => -1 : block | |
| 4521 // | |
| 4522 // _Event serves as a restricted-range semaphore : | |
| 4523 // -1 : thread is blocked | |
| 4524 // 0 : neutral - thread is running or ready | |
| 4525 // 1 : signaled - thread is running or ready | |
| 4526 // | |
| 4527 // Another possible encoding of _Event would be | |
| 4528 // with explicit "PARKED" and "SIGNALED" bits. | |
| 4529 | |
| 4530 int os::PlatformEvent::park (jlong Millis) { | |
| 4531 guarantee (_ParkHandle != NULL , "Invariant") ; | |
| 4532 guarantee (Millis > 0 , "Invariant") ; | |
| 4533 int v ; | |
| 4534 | |
| 4535 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
| 4536 // the initial park() operation. | |
| 4537 | |
| 4538 for (;;) { | |
| 4539 v = _Event ; | |
| 4540 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4541 } | |
| 4542 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4543 if (v != 0) return OS_OK ; | |
| 4544 | |
| 4545 // Do this the hard way by blocking ... | |
| 4546 // TODO: consider a brief spin here, gated on the success of recent | |
| 4547 // spin attempts by this thread. | |
| 4548 // | |
| 4549 // We decompose long timeouts into series of shorter timed waits. | |
| 4550 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
| 4551 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
| 4552 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
| 4553 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
| 4554 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
| 4555 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
| 4556 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
| 4557 // for the already waited time. This policy does not admit any new outcomes. | |
| 4558 // In the future, however, we might want to track the accumulated wait time and | |
| 4559 // adjust Millis accordingly if we encounter a spurious wakeup. | |
| 4560 | |
| 4561 const int MAXTIMEOUT = 0x10000000 ; | |
| 4562 DWORD rv = WAIT_TIMEOUT ; | |
| 4563 while (_Event < 0 && Millis > 0) { | |
| 4564 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
| 4565 if (Millis > MAXTIMEOUT) { | |
| 4566 prd = MAXTIMEOUT ; | |
| 4567 } | |
| 4568 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
| 4569 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
| 4570 if (rv == WAIT_TIMEOUT) { | |
| 4571 Millis -= prd ; | |
| 4572 } | |
| 4573 } | |
| 4574 v = _Event ; | |
| 4575 _Event = 0 ; | |
| 4576 OrderAccess::fence() ; | |
| 4577 // If we encounter a nearly simultanous timeout expiry and unpark() | |
| 4578 // we return OS_OK indicating we awoke via unpark(). | |
| 4579 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
| 4580 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
| 4581 } | |
| 4582 | |
| 4583 void os::PlatformEvent::park () { | |
| 4584 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4585 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 4586 // may call park(). | |
| 4587 int v ; | |
| 4588 for (;;) { | |
| 4589 v = _Event ; | |
| 4590 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4591 } | |
| 4592 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4593 if (v != 0) return ; | |
| 4594 | |
| 4595 // Do this the hard way by blocking ... | |
| 4596 // TODO: consider a brief spin here, gated on the success of recent | |
| 4597 // spin attempts by this thread. | |
| 4598 while (_Event < 0) { | |
| 4599 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
| 4600 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
| 4601 } | |
| 4602 | |
| 4603 // Usually we'll find _Event == 0 at this point, but as | |
| 4604 // an optional optimization we clear it, just in case can | |
| 4605 // multiple unpark() operations drove _Event up to 1. | |
| 4606 _Event = 0 ; | |
| 4607 OrderAccess::fence() ; | |
| 4608 guarantee (_Event >= 0, "invariant") ; | |
| 4609 } | |
| 4610 | |
| 4611 void os::PlatformEvent::unpark() { | |
| 4612 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4613 int v ; | |
| 4614 for (;;) { | |
| 4615 v = _Event ; // Increment _Event if it's < 1. | |
| 4616 if (v > 0) { | |
| 4617 // If it's already signaled just return. | |
| 4618 // The LD of _Event could have reordered or be satisfied | |
| 4619 // by a read-aside from this processor's write buffer. | |
| 4620 // To avoid problems execute a barrier and then | |
| 4621 // ratify the value. A degenerate CAS() would also work. | |
| 4622 // Viz., CAS (v+0, &_Event, v) == v). | |
| 4623 OrderAccess::fence() ; | |
| 4624 if (_Event == v) return ; | |
| 4625 continue ; | |
| 4626 } | |
| 4627 if (Atomic::cmpxchg (v+1, &_Event, v) == v) break ; | |
| 4628 } | |
| 4629 if (v < 0) { | |
| 4630 ::SetEvent (_ParkHandle) ; | |
| 4631 } | |
| 4632 } | |
| 4633 | |
| 4634 | |
| 4635 // JSR166 | |
| 4636 // ------------------------------------------------------- | |
| 4637 | |
| 4638 /* | |
| 4639 * The Windows implementation of Park is very straightforward: Basic | |
| 4640 * operations on Win32 Events turn out to have the right semantics to | |
| 4641 * use them directly. We opportunistically resuse the event inherited | |
| 4642 * from Monitor. | |
| 4643 */ | |
| 4644 | |
| 4645 | |
| 4646 void Parker::park(bool isAbsolute, jlong time) { | |
| 4647 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4648 // First, demultiplex/decode time arguments | |
| 4649 if (time < 0) { // don't wait | |
| 4650 return; | |
| 4651 } | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
4652 else if (time == 0 && !isAbsolute) { |
| 0 | 4653 time = INFINITE; |
| 4654 } | |
| 4655 else if (isAbsolute) { | |
| 4656 time -= os::javaTimeMillis(); // convert to relative time | |
| 4657 if (time <= 0) // already elapsed | |
| 4658 return; | |
| 4659 } | |
| 4660 else { // relative | |
| 4661 time /= 1000000; // Must coarsen from nanos to millis | |
| 4662 if (time == 0) // Wait for the minimal time unit if zero | |
| 4663 time = 1; | |
| 4664 } | |
| 4665 | |
| 4666 JavaThread* thread = (JavaThread*)(Thread::current()); | |
| 4667 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 4668 JavaThread *jt = (JavaThread *)thread; | |
| 4669 | |
| 4670 // Don't wait if interrupted or already triggered | |
| 4671 if (Thread::is_interrupted(thread, false) || | |
| 4672 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
| 4673 ResetEvent(_ParkEvent); | |
| 4674 return; | |
| 4675 } | |
| 4676 else { | |
| 4677 ThreadBlockInVM tbivm(jt); | |
| 4678 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 4679 jt->set_suspend_equivalent(); | |
| 4680 | |
| 4681 WaitForSingleObject(_ParkEvent, time); | |
| 4682 ResetEvent(_ParkEvent); | |
| 4683 | |
| 4684 // If externally suspended while waiting, re-suspend | |
| 4685 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 4686 jt->java_suspend_self(); | |
| 4687 } | |
| 4688 } | |
| 4689 } | |
| 4690 | |
| 4691 void Parker::unpark() { | |
| 4692 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4693 SetEvent(_ParkEvent); | |
| 4694 } | |
| 4695 | |
| 4696 // Run the specified command in a separate process. Return its exit value, | |
| 4697 // or -1 on failure (e.g. can't create a new process). | |
| 4698 int os::fork_and_exec(char* cmd) { | |
| 4699 STARTUPINFO si; | |
| 4700 PROCESS_INFORMATION pi; | |
| 4701 | |
| 4702 memset(&si, 0, sizeof(si)); | |
| 4703 si.cb = sizeof(si); | |
| 4704 memset(&pi, 0, sizeof(pi)); | |
| 4705 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
| 4706 cmd, // command line | |
| 4707 NULL, // process security attribute | |
| 4708 NULL, // thread security attribute | |
| 4709 TRUE, // inherits system handles | |
| 4710 0, // no creation flags | |
| 4711 NULL, // use parent's environment block | |
| 4712 NULL, // use parent's starting directory | |
| 4713 &si, // (in) startup information | |
| 4714 &pi); // (out) process information | |
| 4715 | |
| 4716 if (rslt) { | |
| 4717 // Wait until child process exits. | |
| 4718 WaitForSingleObject(pi.hProcess, INFINITE); | |
| 4719 | |
| 4720 DWORD exit_code; | |
| 4721 GetExitCodeProcess(pi.hProcess, &exit_code); | |
| 4722 | |
| 4723 // Close process and thread handles. | |
| 4724 CloseHandle(pi.hProcess); | |
| 4725 CloseHandle(pi.hThread); | |
| 4726 | |
| 4727 return (int)exit_code; | |
| 4728 } else { | |
| 4729 return -1; | |
| 4730 } | |
| 4731 } | |
| 4732 | |
| 4733 //-------------------------------------------------------------------------------------------------- | |
| 4734 // Non-product code | |
| 4735 | |
| 4736 static int mallocDebugIntervalCounter = 0; | |
| 4737 static int mallocDebugCounter = 0; | |
| 4738 bool os::check_heap(bool force) { | |
| 4739 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
| 4740 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
| 4741 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
| 4742 // wrong; at these points, eax contains the address of the offending block (I think). | |
| 4743 // To get to the exlicit error message(s) below, just continue twice. | |
| 4744 HANDLE heap = GetProcessHeap(); | |
| 4745 { HeapLock(heap); | |
| 4746 PROCESS_HEAP_ENTRY phe; | |
| 4747 phe.lpData = NULL; | |
| 4748 while (HeapWalk(heap, &phe) != 0) { | |
| 4749 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
| 4750 !HeapValidate(heap, 0, phe.lpData)) { | |
| 4751 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
| 4752 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
| 4753 fatal("corrupted C heap"); | |
| 4754 } | |
| 4755 } | |
|
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
4756 DWORD err = GetLastError(); |
| 0 | 4757 if (err != ERROR_NO_MORE_ITEMS && err != ERROR_CALL_NOT_IMPLEMENTED) { |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
4758 fatal(err_msg("heap walk aborted with error %d", err)); |
| 0 | 4759 } |
| 4760 HeapUnlock(heap); | |
| 4761 } | |
| 4762 mallocDebugIntervalCounter = 0; | |
| 4763 } | |
| 4764 return true; | |
| 4765 } | |
| 4766 | |
| 4767 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4768 bool os::find(address addr, outputStream* st) { |
| 0 | 4769 // Nothing yet |
| 4770 return false; | |
| 4771 } | |
| 4772 | |
| 4773 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
| 4774 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
| 4775 | |
| 4776 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 4777 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
| 4778 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
| 4779 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 4780 | |
| 4781 if (os::is_memory_serialize_page(thread, addr)) | |
| 4782 return EXCEPTION_CONTINUE_EXECUTION; | |
| 4783 } | |
| 4784 | |
| 4785 return EXCEPTION_CONTINUE_SEARCH; | |
| 4786 } | |
| 4787 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4788 // We don't build a headless jre for Windows |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4789 bool os::is_headless_jre() { return false; } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4790 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4791 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4792 typedef CRITICAL_SECTION mutex_t; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4793 #define mutexInit(m) InitializeCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4794 #define mutexDestroy(m) DeleteCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4795 #define mutexLock(m) EnterCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4796 #define mutexUnlock(m) LeaveCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4797 |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4798 static bool sock_initialized = FALSE; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4799 static mutex_t sockFnTableMutex; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4800 |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4801 static void initSock() { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4802 WSADATA wsadata; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4803 |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4804 if (!os::WinSock2Dll::WinSock2Available()) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4805 jio_fprintf(stderr, "Could not load Winsock 2 (error: %d)\n", |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4806 ::GetLastError()); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4807 return; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4808 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4809 if (sock_initialized == TRUE) return; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4810 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4811 ::mutexInit(&sockFnTableMutex); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4812 ::mutexLock(&sockFnTableMutex); |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4813 if (os::WinSock2Dll::WSAStartup(MAKEWORD(1,1), &wsadata) != 0) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4814 jio_fprintf(stderr, "Could not initialize Winsock\n"); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4815 } |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4816 sock_initialized = TRUE; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4817 ::mutexUnlock(&sockFnTableMutex); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4818 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4819 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4820 struct hostent* os::get_host_by_name(char* name) { |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4821 if (!sock_initialized) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4822 initSock(); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4823 } |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4824 if (!os::WinSock2Dll::WinSock2Available()) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4825 return NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4826 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4827 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4828 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4829 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4830 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4831 int os::socket_close(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4832 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4833 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4834 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4835 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4836 int os::socket_available(int fd, jint *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4837 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4838 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4839 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4840 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4841 int os::socket(int domain, int type, int protocol) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4842 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4843 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4844 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4845 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4846 int os::listen(int fd, int count) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4847 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4848 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4849 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4850 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4851 int os::connect(int fd, struct sockaddr* him, socklen_t len) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4852 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4853 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4854 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4855 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4856 int os::accept(int fd, struct sockaddr* him, socklen_t* len) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4857 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4858 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4859 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4860 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4861 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
|
4862 struct sockaddr* to, socklen_t tolen) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4863 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4864 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4865 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4866 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4867 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
|
4868 sockaddr* from, socklen_t* fromlen) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4869 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4870 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4871 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4872 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4873 int os::recv(int fd, char* buf, size_t nBytes, uint flags) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4874 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4875 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4876 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4877 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4878 int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4879 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4880 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4881 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4882 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4883 int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4884 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4885 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4886 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4887 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4888 int os::timeout(int fd, long timeout) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4889 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4890 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4891 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4892 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4893 int os::get_host_name(char* name, int namelen) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4894 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4895 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4896 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4897 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4898 int os::socket_shutdown(int fd, int howto) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4899 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4900 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4901 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4902 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4903 int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4904 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4905 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4906 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4907 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4908 int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4909 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4910 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4911 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4912 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4913 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
|
4914 char* optval, socklen_t* optlen) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4915 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4916 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4917 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4918 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4919 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
|
4920 const char* optval, socklen_t optlen) { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4921 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4922 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4923 } |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4924 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4925 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4926 // Kernel32 API |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4927 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
| 3885 | 4928 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
| 4929 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
| 4930 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
| 4931 | |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4932 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
| 3885 | 4933 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
| 4934 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
| 4935 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4936 BOOL os::Kernel32Dll::initialized = FALSE; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4937 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4938 assert(initialized && _GetLargePageMinimum != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4939 "GetLargePageMinimumAvailable() not yet called"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4940 return _GetLargePageMinimum(); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4941 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4942 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4943 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4944 if (!initialized) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4945 initialize(); |
|
b1cbb0907b36
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4946 } |
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4947 return _GetLargePageMinimum != NULL; |
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4948 } |
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4949 |
| 3885 | 4950 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
| 4951 if (!initialized) { | |
| 4952 initialize(); | |
| 4953 } | |
| 4954 return _VirtualAllocExNuma != NULL; | |
| 4955 } | |
| 4956 | |
| 4957 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
| 4958 assert(initialized && _VirtualAllocExNuma != NULL, | |
| 4959 "NUMACallsAvailable() not yet called"); | |
| 4960 | |
| 4961 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
| 4962 } | |
| 4963 | |
| 4964 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
| 4965 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
| 4966 "NUMACallsAvailable() not yet called"); | |
| 4967 | |
| 4968 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
| 4969 } | |
| 4970 | |
| 4971 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
| 4972 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
| 4973 "NUMACallsAvailable() not yet called"); | |
| 4974 | |
| 4975 return _GetNumaNodeProcessorMask(node, proc_mask); | |
| 4976 } | |
| 4977 | |
| 4978 | |
| 4979 void os::Kernel32Dll::initializeCommon() { | |
| 4980 if (!initialized) { | |
| 4981 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
| 4982 assert(handle != NULL, "Just check"); | |
| 4983 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
| 4984 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
| 4985 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
| 4986 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
| 4987 initialized = TRUE; | |
| 4988 } | |
| 4989 } | |
| 4990 | |
| 4991 | |
|
3833
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4992 |
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4993 #ifndef JDK6_OR_EARLIER |
|
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4994 |
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4995 void os::Kernel32Dll::initialize() { |
| 3885 | 4996 initializeCommon(); |
|
3833
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4997 } |
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4998 |
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|
4999 |
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5000 // Kernel32 API |
|
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5001 inline BOOL os::Kernel32Dll::SwitchToThread() { |
|
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5002 return ::SwitchToThread(); |
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5003 } |
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5004 |
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5005 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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5006 return true; |
|
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5007 } |
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5008 |
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|
5009 // Help tools |
|
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5010 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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5011 return true; |
|
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|
5012 } |
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|
5013 |
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|
5014 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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5015 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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5016 } |
|
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|
5017 |
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|
5018 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5019 return ::Module32First(hSnapshot, lpme); |
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|
5020 } |
|
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|
5021 |
|
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|
5022 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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5023 return ::Module32Next(hSnapshot, lpme); |
|
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|
5024 } |
|
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|
5025 |
|
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|
5026 |
|
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|
5027 inline BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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5028 return true; |
|
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|
5029 } |
|
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|
5030 |
|
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|
5031 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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5032 ::GetNativeSystemInfo(lpSystemInfo); |
|
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|
5033 } |
|
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|
5034 |
|
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|
5035 // PSAPI API |
|
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|
5036 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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|
5037 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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|
5038 } |
|
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|
5039 |
|
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|
5040 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5041 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5042 } |
|
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|
5043 |
|
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|
5044 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5045 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5046 } |
|
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|
5047 |
|
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|
5048 inline BOOL os::PSApiDll::PSApiAvailable() { |
|
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|
5049 return true; |
|
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|
5050 } |
|
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|
5051 |
|
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|
5052 |
|
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|
5053 // WinSock2 API |
|
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|
5054 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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|
5055 return ::WSAStartup(wVersionRequested, lpWSAData); |
|
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|
5056 } |
|
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|
5057 |
|
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|
5058 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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|
5059 return ::gethostbyname(name); |
|
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|
5060 } |
|
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|
5061 |
|
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|
5062 inline BOOL os::WinSock2Dll::WinSock2Available() { |
|
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|
5063 return true; |
|
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|
5064 } |
|
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|
5065 |
|
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|
5066 // Advapi API |
|
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|
5067 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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|
5068 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
|
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|
5069 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
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|
5070 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
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|
5071 BufferLength, PreviousState, ReturnLength); |
|
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|
5072 } |
|
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|
5073 |
|
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|
5074 inline BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
|
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|
5075 PHANDLE TokenHandle) { |
|
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|
5076 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
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|
5077 } |
|
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|
5078 |
|
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5079 inline BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
|
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5080 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
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|
5081 } |
|
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|
5082 |
|
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|
5083 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
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|
5084 return true; |
|
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|
5085 } |
|
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|
5086 |
|
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|
5087 #else |
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5088 // Kernel32 API |
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5089 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
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5090 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
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5091 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
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5092 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
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5093 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
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5094 |
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5095 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
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5096 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
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5097 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
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5098 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
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5099 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
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5100 |
| 3885 | 5101 |
|
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5102 void os::Kernel32Dll::initialize() { |
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5103 if (!initialized) { |
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5104 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
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5105 assert(handle != NULL, "Just check"); |
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5106 |
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5107 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
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5108 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
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5109 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
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5110 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
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5111 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
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5112 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
| 3885 | 5113 initializeCommon(); // resolve the functions that always need resolving |
|
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5114 |
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5115 initialized = TRUE; |
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5116 } |
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5117 } |
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|
5118 |
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5119 BOOL os::Kernel32Dll::SwitchToThread() { |
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5120 assert(initialized && _SwitchToThread != NULL, |
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5121 "SwitchToThreadAvailable() not yet called"); |
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5122 return _SwitchToThread(); |
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5123 } |
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5124 |
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|
5125 |
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5126 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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5127 if (!initialized) { |
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5128 initialize(); |
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5129 } |
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5130 return _SwitchToThread != NULL; |
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5131 } |
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|
5132 |
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|
5133 // Help tools |
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5134 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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5135 if (!initialized) { |
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|
5136 initialize(); |
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5137 } |
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5138 return _CreateToolhelp32Snapshot != NULL && |
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5139 _Module32First != NULL && |
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5140 _Module32Next != NULL; |
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5141 } |
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|
5142 |
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5143 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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5144 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
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|
5145 "HelpToolsAvailable() not yet called"); |
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|
5146 |
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5147 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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5148 } |
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|
5149 |
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|
5150 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5151 assert(initialized && _Module32First != NULL, |
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|
5152 "HelpToolsAvailable() not yet called"); |
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|
5153 |
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5154 return _Module32First(hSnapshot, lpme); |
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|
5155 } |
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|
5156 |
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|
5157 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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|
5158 assert(initialized && _Module32Next != NULL, |
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|
5159 "HelpToolsAvailable() not yet called"); |
|
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|
5160 |
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|
5161 return _Module32Next(hSnapshot, lpme); |
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|
5162 } |
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|
5163 |
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|
5164 |
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|
5165 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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|
5166 if (!initialized) { |
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|
5167 initialize(); |
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|
5168 } |
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5169 return _GetNativeSystemInfo != NULL; |
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|
5170 } |
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|
5171 |
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|
5172 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
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5173 assert(initialized && _GetNativeSystemInfo != NULL, |
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5174 "GetNativeSystemInfoAvailable() not yet called"); |
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|
5175 |
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5176 _GetNativeSystemInfo(lpSystemInfo); |
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|
5177 } |
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|
5178 |
| 3885 | 5179 |
| 5180 | |
|
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|
5181 // PSAPI API |
|
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|
5182 |
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|
5183 |
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|
5184 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
|
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5185 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
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5186 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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|
5187 |
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5188 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
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5189 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
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5190 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
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5191 BOOL os::PSApiDll::initialized = FALSE; |
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|
5192 |
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5193 void os::PSApiDll::initialize() { |
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5194 if (!initialized) { |
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5195 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
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5196 if (handle != NULL) { |
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5197 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
|
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|
5198 "EnumProcessModules"); |
|
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5199 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
|
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|
5200 "GetModuleFileNameExA"); |
|
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|
5201 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
|
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|
5202 "GetModuleInformation"); |
|
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|
5203 } |
|
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|
5204 initialized = TRUE; |
|
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|
5205 } |
|
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|
5206 } |
|
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|
5207 |
|
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|
5208 |
|
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|
5209 |
|
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|
5210 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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|
5211 assert(initialized && _EnumProcessModules != NULL, |
|
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|
5212 "PSApiAvailable() not yet called"); |
|
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5213 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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|
5214 } |
|
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|
5215 |
|
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|
5216 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5217 assert(initialized && _GetModuleFileNameEx != NULL, |
|
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|
5218 "PSApiAvailable() not yet called"); |
|
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|
5219 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5220 } |
|
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|
5221 |
|
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|
5222 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5223 assert(initialized && _GetModuleInformation != NULL, |
|
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|
5224 "PSApiAvailable() not yet called"); |
|
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|
5225 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5226 } |
|
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|
5227 |
|
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|
5228 BOOL os::PSApiDll::PSApiAvailable() { |
|
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|
5229 if (!initialized) { |
|
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|
5230 initialize(); |
|
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|
5231 } |
|
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|
5232 return _EnumProcessModules != NULL && |
|
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|
5233 _GetModuleFileNameEx != NULL && |
|
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|
5234 _GetModuleInformation != NULL; |
|
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|
5235 } |
|
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|
5236 |
|
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|
5237 |
|
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|
5238 // WinSock2 API |
|
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|
5239 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
|
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|
5240 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
|
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|
5241 |
|
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|
5242 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
|
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|
5243 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
|
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|
5244 BOOL os::WinSock2Dll::initialized = FALSE; |
|
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|
5245 |
|
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|
5246 void os::WinSock2Dll::initialize() { |
|
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|
5247 if (!initialized) { |
|
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|
5248 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
|
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|
5249 if (handle != NULL) { |
|
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|
5250 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
|
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|
5251 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
|
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|
5252 } |
|
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|
5253 initialized = TRUE; |
|
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|
5254 } |
|
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|
5255 } |
|
b1cbb0907b36
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|
5256 |
|
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changeset
|
5257 |
|
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|
5258 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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|
5259 assert(initialized && _WSAStartup != NULL, |
|
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|
5260 "WinSock2Available() not yet called"); |
|
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|
5261 return _WSAStartup(wVersionRequested, lpWSAData); |
|
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|
5262 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5263 |
|
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|
5264 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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|
5265 assert(initialized && _gethostbyname != NULL, |
|
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|
5266 "WinSock2Available() not yet called"); |
|
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|
5267 return _gethostbyname(name); |
|
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|
5268 } |
|
b1cbb0907b36
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changeset
|
5269 |
|
b1cbb0907b36
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|
5270 BOOL os::WinSock2Dll::WinSock2Available() { |
|
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|
5271 if (!initialized) { |
|
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|
5272 initialize(); |
|
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|
5273 } |
|
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|
5274 return _WSAStartup != NULL && |
|
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|
5275 _gethostbyname != NULL; |
|
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|
5276 } |
|
b1cbb0907b36
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|
5277 |
|
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|
5278 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
|
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|
5279 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
|
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|
5280 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
|
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|
5281 |
|
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|
5282 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
|
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|
5283 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
|
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|
5284 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
|
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|
5285 BOOL os::Advapi32Dll::initialized = FALSE; |
|
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|
5286 |
|
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|
5287 void os::Advapi32Dll::initialize() { |
|
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|
5288 if (!initialized) { |
|
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|
5289 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
|
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|
5290 if (handle != NULL) { |
|
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|
5291 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
|
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|
5292 "AdjustTokenPrivileges"); |
|
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|
5293 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
|
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|
5294 "OpenProcessToken"); |
|
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|
5295 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
|
3834
279ef1916773
7065535: Mistyped function name that disabled UseLargePages on Windows
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|
5296 "LookupPrivilegeValueA"); |
|
3833
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|
5297 } |
|
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|
5298 initialized = TRUE; |
|
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|
5299 } |
|
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|
5300 } |
|
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|
5301 |
|
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|
5302 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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5303 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
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5304 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
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5305 assert(initialized && _AdjustTokenPrivileges != NULL, |
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5306 "AdvapiAvailable() not yet called"); |
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5307 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
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5308 BufferLength, PreviousState, ReturnLength); |
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5309 } |
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5310 |
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5311 BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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5312 PHANDLE TokenHandle) { |
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5313 assert(initialized && _OpenProcessToken != NULL, |
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5314 "AdvapiAvailable() not yet called"); |
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5315 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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5316 } |
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5317 |
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5318 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
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5319 assert(initialized && _LookupPrivilegeValue != NULL, |
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5320 "AdvapiAvailable() not yet called"); |
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5321 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
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5322 } |
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5323 |
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5324 BOOL os::Advapi32Dll::AdvapiAvailable() { |
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5325 if (!initialized) { |
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5326 initialize(); |
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5327 } |
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5328 return _AdjustTokenPrivileges != NULL && |
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5329 _OpenProcessToken != NULL && |
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5330 _LookupPrivilegeValue != NULL; |
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5331 } |
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5332 |
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5333 #endif |
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5334 |