Mercurial > hg > graal-compiler
annotate src/os/windows/vm/os_windows.cpp @ 1985:cb2d0a362639
6981484: Update development launcher
Summary: Add new development launcher called hotspot(.exe)
Reviewed-by: coleenp
| author | sla |
|---|---|
| date | Thu, 02 Dec 2010 05:45:54 -0800 |
| parents | 828eafbd85cc |
| children | 54f5dd2aa1d9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1997, 2010, 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 | |
| 25 #ifdef _WIN64 | |
| 26 // Must be at least Windows 2000 or XP to use VectoredExceptions | |
| 27 #define _WIN32_WINNT 0x500 | |
| 28 #endif | |
| 29 | |
| 1972 | 30 // no precompiled headers |
| 31 #include "classfile/classLoader.hpp" | |
| 32 #include "classfile/systemDictionary.hpp" | |
| 33 #include "classfile/vmSymbols.hpp" | |
| 34 #include "code/icBuffer.hpp" | |
| 35 #include "code/vtableStubs.hpp" | |
| 36 #include "compiler/compileBroker.hpp" | |
| 37 #include "interpreter/interpreter.hpp" | |
| 38 #include "jvm_windows.h" | |
| 39 #include "memory/allocation.inline.hpp" | |
| 40 #include "memory/filemap.hpp" | |
| 41 #include "mutex_windows.inline.hpp" | |
| 42 #include "oops/oop.inline.hpp" | |
| 43 #include "os_share_windows.hpp" | |
| 44 #include "prims/jniFastGetField.hpp" | |
| 45 #include "prims/jvm.h" | |
| 46 #include "prims/jvm_misc.hpp" | |
| 47 #include "runtime/arguments.hpp" | |
| 48 #include "runtime/extendedPC.hpp" | |
| 49 #include "runtime/globals.hpp" | |
| 50 #include "runtime/interfaceSupport.hpp" | |
| 51 #include "runtime/java.hpp" | |
| 52 #include "runtime/javaCalls.hpp" | |
| 53 #include "runtime/mutexLocker.hpp" | |
| 54 #include "runtime/objectMonitor.hpp" | |
| 55 #include "runtime/osThread.hpp" | |
| 56 #include "runtime/perfMemory.hpp" | |
| 57 #include "runtime/sharedRuntime.hpp" | |
| 58 #include "runtime/statSampler.hpp" | |
| 59 #include "runtime/stubRoutines.hpp" | |
| 60 #include "runtime/threadCritical.hpp" | |
| 61 #include "runtime/timer.hpp" | |
| 62 #include "services/attachListener.hpp" | |
| 63 #include "services/runtimeService.hpp" | |
| 64 #include "thread_windows.inline.hpp" | |
| 65 #include "utilities/defaultStream.hpp" | |
| 66 #include "utilities/events.hpp" | |
| 67 #include "utilities/growableArray.hpp" | |
| 68 #include "utilities/vmError.hpp" | |
| 69 #ifdef TARGET_ARCH_x86 | |
| 70 # include "assembler_x86.inline.hpp" | |
| 71 # include "nativeInst_x86.hpp" | |
| 72 #endif | |
| 73 #ifdef COMPILER1 | |
| 74 #include "c1/c1_Runtime1.hpp" | |
| 75 #endif | |
| 76 #ifdef COMPILER2 | |
| 77 #include "opto/runtime.hpp" | |
| 78 #endif | |
| 0 | 79 |
| 80 #ifdef _DEBUG | |
| 81 #include <crtdbg.h> | |
| 82 #endif | |
| 83 | |
| 84 | |
| 85 #include <windows.h> | |
| 86 #include <sys/types.h> | |
| 87 #include <sys/stat.h> | |
| 88 #include <sys/timeb.h> | |
| 89 #include <objidl.h> | |
| 90 #include <shlobj.h> | |
| 91 | |
| 92 #include <malloc.h> | |
| 93 #include <signal.h> | |
| 94 #include <direct.h> | |
| 95 #include <errno.h> | |
| 96 #include <fcntl.h> | |
| 97 #include <io.h> | |
| 98 #include <process.h> // For _beginthreadex(), _endthreadex() | |
| 99 #include <imagehlp.h> // For os::dll_address_to_function_name | |
| 100 | |
| 101 /* for enumerating dll libraries */ | |
| 102 #include <tlhelp32.h> | |
| 103 #include <vdmdbg.h> | |
| 104 | |
| 105 // for timer info max values which include all bits | |
| 106 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
| 107 | |
| 108 // For DLL loading/load error detection | |
| 109 // Values of PE COFF | |
| 110 #define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c | |
| 111 #define IMAGE_FILE_SIGNATURE_LENGTH 4 | |
| 112 | |
| 113 static HANDLE main_process; | |
| 114 static HANDLE main_thread; | |
| 115 static int main_thread_id; | |
| 116 | |
| 117 static FILETIME process_creation_time; | |
| 118 static FILETIME process_exit_time; | |
| 119 static FILETIME process_user_time; | |
| 120 static FILETIME process_kernel_time; | |
| 121 | |
| 122 #ifdef _WIN64 | |
| 123 PVOID topLevelVectoredExceptionHandler = NULL; | |
| 124 #endif | |
| 125 | |
| 126 #ifdef _M_IA64 | |
| 127 #define __CPU__ ia64 | |
| 128 #elif _M_AMD64 | |
| 129 #define __CPU__ amd64 | |
| 130 #else | |
| 131 #define __CPU__ i486 | |
| 132 #endif | |
| 133 | |
| 134 // save DLL module handle, used by GetModuleFileName | |
| 135 | |
| 136 HINSTANCE vm_lib_handle; | |
| 137 static int getLastErrorString(char *buf, size_t len); | |
| 138 | |
| 139 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
| 140 switch (reason) { | |
| 141 case DLL_PROCESS_ATTACH: | |
| 142 vm_lib_handle = hinst; | |
| 143 if(ForceTimeHighResolution) | |
| 144 timeBeginPeriod(1L); | |
| 145 break; | |
| 146 case DLL_PROCESS_DETACH: | |
| 147 if(ForceTimeHighResolution) | |
| 148 timeEndPeriod(1L); | |
| 149 #ifdef _WIN64 | |
| 150 if (topLevelVectoredExceptionHandler != NULL) { | |
| 151 RemoveVectoredExceptionHandler(topLevelVectoredExceptionHandler); | |
| 152 topLevelVectoredExceptionHandler = NULL; | |
| 153 } | |
| 154 #endif | |
| 155 break; | |
| 156 default: | |
| 157 break; | |
| 158 } | |
| 159 return true; | |
| 160 } | |
| 161 | |
| 162 static inline double fileTimeAsDouble(FILETIME* time) { | |
| 163 const double high = (double) ((unsigned int) ~0); | |
| 164 const double split = 10000000.0; | |
| 165 double result = (time->dwLowDateTime / split) + | |
| 166 time->dwHighDateTime * (high/split); | |
| 167 return result; | |
| 168 } | |
| 169 | |
| 170 // Implementation of os | |
| 171 | |
| 172 bool os::getenv(const char* name, char* buffer, int len) { | |
| 173 int result = GetEnvironmentVariable(name, buffer, len); | |
| 174 return result > 0 && result < len; | |
| 175 } | |
| 176 | |
| 177 | |
| 178 // No setuid programs under Windows. | |
| 179 bool os::have_special_privileges() { | |
| 180 return false; | |
| 181 } | |
| 182 | |
| 183 | |
| 184 // This method is a periodic task to check for misbehaving JNI applications | |
| 185 // under CheckJNI, we can add any periodic checks here. | |
| 186 // For Windows at the moment does nothing | |
| 187 void os::run_periodic_checks() { | |
| 188 return; | |
| 189 } | |
| 190 | |
| 191 #ifndef _WIN64 | |
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192 // previous UnhandledExceptionFilter, if there is one |
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193 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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194 |
| 0 | 195 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
| 196 #endif | |
| 197 void os::init_system_properties_values() { | |
| 198 /* sysclasspath, java_home, dll_dir */ | |
| 199 { | |
| 200 char *home_path; | |
| 201 char *dll_path; | |
| 202 char *pslash; | |
| 203 char *bin = "\\bin"; | |
| 204 char home_dir[MAX_PATH]; | |
| 205 | |
| 206 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
| 207 os::jvm_path(home_dir, sizeof(home_dir)); | |
| 208 // Found the full path to jvm[_g].dll. | |
| 209 // Now cut the path to <java_home>/jre if we can. | |
| 210 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
| 211 pslash = strrchr(home_dir, '\\'); | |
| 212 if (pslash != NULL) { | |
| 213 *pslash = '\0'; /* get rid of \{client|server} */ | |
| 214 pslash = strrchr(home_dir, '\\'); | |
| 215 if (pslash != NULL) | |
| 216 *pslash = '\0'; /* get rid of \bin */ | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1); | |
| 221 if (home_path == NULL) | |
| 222 return; | |
| 223 strcpy(home_path, home_dir); | |
| 224 Arguments::set_java_home(home_path); | |
| 225 | |
| 226 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1); | |
| 227 if (dll_path == NULL) | |
| 228 return; | |
| 229 strcpy(dll_path, home_dir); | |
| 230 strcat(dll_path, bin); | |
| 231 Arguments::set_dll_dir(dll_path); | |
| 232 | |
| 233 if (!set_boot_path('\\', ';')) | |
| 234 return; | |
| 235 } | |
| 236 | |
| 237 /* library_path */ | |
| 238 #define EXT_DIR "\\lib\\ext" | |
| 239 #define BIN_DIR "\\bin" | |
| 240 #define PACKAGE_DIR "\\Sun\\Java" | |
| 241 { | |
| 242 /* Win32 library search order (See the documentation for LoadLibrary): | |
| 243 * | |
| 244 * 1. The directory from which application is loaded. | |
| 245 * 2. The current directory | |
| 246 * 3. The system wide Java Extensions directory (Java only) | |
| 247 * 4. System directory (GetSystemDirectory) | |
| 248 * 5. Windows directory (GetWindowsDirectory) | |
| 249 * 6. The PATH environment variable | |
| 250 */ | |
| 251 | |
| 252 char *library_path; | |
| 253 char tmp[MAX_PATH]; | |
| 254 char *path_str = ::getenv("PATH"); | |
| 255 | |
| 256 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
| 257 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10); | |
| 258 | |
| 259 library_path[0] = '\0'; | |
| 260 | |
| 261 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
| 262 *(strrchr(tmp, '\\')) = '\0'; | |
| 263 strcat(library_path, tmp); | |
| 264 | |
| 265 strcat(library_path, ";."); | |
| 266 | |
| 267 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 268 strcat(library_path, ";"); | |
| 269 strcat(library_path, tmp); | |
| 270 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
| 271 | |
| 272 GetSystemDirectory(tmp, sizeof(tmp)); | |
| 273 strcat(library_path, ";"); | |
| 274 strcat(library_path, tmp); | |
| 275 | |
| 276 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 277 strcat(library_path, ";"); | |
| 278 strcat(library_path, tmp); | |
| 279 | |
| 280 if (path_str) { | |
| 281 strcat(library_path, ";"); | |
| 282 strcat(library_path, path_str); | |
| 283 } | |
| 284 | |
| 285 Arguments::set_library_path(library_path); | |
| 286 FREE_C_HEAP_ARRAY(char, library_path); | |
| 287 } | |
| 288 | |
| 289 /* Default extensions directory */ | |
| 290 { | |
| 291 char path[MAX_PATH]; | |
| 292 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
| 293 GetWindowsDirectory(path, MAX_PATH); | |
| 294 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
| 295 path, PACKAGE_DIR, EXT_DIR); | |
| 296 Arguments::set_ext_dirs(buf); | |
| 297 } | |
| 298 #undef EXT_DIR | |
| 299 #undef BIN_DIR | |
| 300 #undef PACKAGE_DIR | |
| 301 | |
| 302 /* Default endorsed standards directory. */ | |
| 303 { | |
| 304 #define ENDORSED_DIR "\\lib\\endorsed" | |
| 305 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
| 306 char * buf = NEW_C_HEAP_ARRAY(char, len); | |
| 307 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); | |
| 308 Arguments::set_endorsed_dirs(buf); | |
| 309 #undef ENDORSED_DIR | |
| 310 } | |
| 311 | |
| 312 #ifndef _WIN64 | |
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313 // set our UnhandledExceptionFilter and save any previous one |
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314 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
| 0 | 315 #endif |
| 316 | |
| 317 // Done | |
| 318 return; | |
| 319 } | |
| 320 | |
| 321 void os::breakpoint() { | |
| 322 DebugBreak(); | |
| 323 } | |
| 324 | |
| 325 // Invoked from the BREAKPOINT Macro | |
| 326 extern "C" void breakpoint() { | |
| 327 os::breakpoint(); | |
| 328 } | |
| 329 | |
| 330 // Returns an estimate of the current stack pointer. Result must be guaranteed | |
| 331 // to point into the calling threads stack, and be no lower than the current | |
| 332 // stack pointer. | |
| 333 | |
| 334 address os::current_stack_pointer() { | |
| 335 int dummy; | |
| 336 address sp = (address)&dummy; | |
| 337 return sp; | |
| 338 } | |
| 339 | |
| 340 // os::current_stack_base() | |
| 341 // | |
| 342 // Returns the base of the stack, which is the stack's | |
| 343 // starting address. This function must be called | |
| 344 // while running on the stack of the thread being queried. | |
| 345 | |
| 346 address os::current_stack_base() { | |
| 347 MEMORY_BASIC_INFORMATION minfo; | |
| 348 address stack_bottom; | |
| 349 size_t stack_size; | |
| 350 | |
| 351 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 352 stack_bottom = (address)minfo.AllocationBase; | |
| 353 stack_size = minfo.RegionSize; | |
| 354 | |
| 355 // Add up the sizes of all the regions with the same | |
| 356 // AllocationBase. | |
| 357 while( 1 ) | |
| 358 { | |
| 359 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
| 360 if ( stack_bottom == (address)minfo.AllocationBase ) | |
| 361 stack_size += minfo.RegionSize; | |
| 362 else | |
| 363 break; | |
| 364 } | |
| 365 | |
| 366 #ifdef _M_IA64 | |
| 367 // IA64 has memory and register stacks | |
| 368 stack_size = stack_size / 2; | |
| 369 #endif | |
| 370 return stack_bottom + stack_size; | |
| 371 } | |
| 372 | |
| 373 size_t os::current_stack_size() { | |
| 374 size_t sz; | |
| 375 MEMORY_BASIC_INFORMATION minfo; | |
| 376 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 377 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
| 378 return sz; | |
| 379 } | |
| 380 | |
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381 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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382 const struct tm* time_struct_ptr = localtime(clock); |
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383 if (time_struct_ptr != NULL) { |
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384 *res = *time_struct_ptr; |
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385 return res; |
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386 } |
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387 return NULL; |
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388 } |
| 0 | 389 |
| 390 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
| 391 | |
| 392 // Thread start routine for all new Java threads | |
| 393 static unsigned __stdcall java_start(Thread* thread) { | |
| 394 // Try to randomize the cache line index of hot stack frames. | |
| 395 // This helps when threads of the same stack traces evict each other's | |
| 396 // cache lines. The threads can be either from the same JVM instance, or | |
| 397 // from different JVM instances. The benefit is especially true for | |
| 398 // processors with hyperthreading technology. | |
| 399 static int counter = 0; | |
| 400 int pid = os::current_process_id(); | |
| 401 _alloca(((pid ^ counter++) & 7) * 128); | |
| 402 | |
| 403 OSThread* osthr = thread->osthread(); | |
| 404 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 405 | |
| 406 if (UseNUMA) { | |
| 407 int lgrp_id = os::numa_get_group_id(); | |
| 408 if (lgrp_id != -1) { | |
| 409 thread->set_lgrp_id(lgrp_id); | |
| 410 } | |
| 411 } | |
| 412 | |
| 413 | |
| 414 if (UseVectoredExceptions) { | |
| 415 // If we are using vectored exception we don't need to set a SEH | |
| 416 thread->run(); | |
| 417 } | |
| 418 else { | |
| 419 // Install a win32 structured exception handler around every thread created | |
| 420 // by VM, so VM can genrate error dump when an exception occurred in non- | |
| 421 // Java thread (e.g. VM thread). | |
| 422 __try { | |
| 423 thread->run(); | |
| 424 } __except(topLevelExceptionFilter( | |
| 425 (_EXCEPTION_POINTERS*)_exception_info())) { | |
| 426 // Nothing to do. | |
| 427 } | |
| 428 } | |
| 429 | |
| 430 // One less thread is executing | |
| 431 // When the VMThread gets here, the main thread may have already exited | |
| 432 // which frees the CodeHeap containing the Atomic::add code | |
| 433 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 434 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 435 } | |
| 436 | |
| 437 return 0; | |
| 438 } | |
| 439 | |
| 440 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
| 441 // Allocate the OSThread object | |
| 442 OSThread* osthread = new OSThread(NULL, NULL); | |
| 443 if (osthread == NULL) return NULL; | |
| 444 | |
| 445 // Initialize support for Java interrupts | |
| 446 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 447 if (interrupt_event == NULL) { | |
| 448 delete osthread; | |
| 449 return NULL; | |
| 450 } | |
| 451 osthread->set_interrupt_event(interrupt_event); | |
| 452 | |
| 453 // Store info on the Win32 thread into the OSThread | |
| 454 osthread->set_thread_handle(thread_handle); | |
| 455 osthread->set_thread_id(thread_id); | |
| 456 | |
| 457 if (UseNUMA) { | |
| 458 int lgrp_id = os::numa_get_group_id(); | |
| 459 if (lgrp_id != -1) { | |
| 460 thread->set_lgrp_id(lgrp_id); | |
| 461 } | |
| 462 } | |
| 463 | |
| 464 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 465 osthread->set_state(INITIALIZED); | |
| 466 | |
| 467 return osthread; | |
| 468 } | |
| 469 | |
| 470 | |
| 471 bool os::create_attached_thread(JavaThread* thread) { | |
| 472 #ifdef ASSERT | |
| 473 thread->verify_not_published(); | |
| 474 #endif | |
| 475 HANDLE thread_h; | |
| 476 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
| 477 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
| 478 fatal("DuplicateHandle failed\n"); | |
| 479 } | |
| 480 OSThread* osthread = create_os_thread(thread, thread_h, | |
| 481 (int)current_thread_id()); | |
| 482 if (osthread == NULL) { | |
| 483 return false; | |
| 484 } | |
| 485 | |
| 486 // Initial thread state is RUNNABLE | |
| 487 osthread->set_state(RUNNABLE); | |
| 488 | |
| 489 thread->set_osthread(osthread); | |
| 490 return true; | |
| 491 } | |
| 492 | |
| 493 bool os::create_main_thread(JavaThread* thread) { | |
| 494 #ifdef ASSERT | |
| 495 thread->verify_not_published(); | |
| 496 #endif | |
| 497 if (_starting_thread == NULL) { | |
| 498 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
| 499 if (_starting_thread == NULL) { | |
| 500 return false; | |
| 501 } | |
| 502 } | |
| 503 | |
| 504 // The primordial thread is runnable from the start) | |
| 505 _starting_thread->set_state(RUNNABLE); | |
| 506 | |
| 507 thread->set_osthread(_starting_thread); | |
| 508 return true; | |
| 509 } | |
| 510 | |
| 511 // Allocate and initialize a new OSThread | |
| 512 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 513 unsigned thread_id; | |
| 514 | |
| 515 // Allocate the OSThread object | |
| 516 OSThread* osthread = new OSThread(NULL, NULL); | |
| 517 if (osthread == NULL) { | |
| 518 return false; | |
| 519 } | |
| 520 | |
| 521 // Initialize support for Java interrupts | |
| 522 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 523 if (interrupt_event == NULL) { | |
| 524 delete osthread; | |
| 525 return NULL; | |
| 526 } | |
| 527 osthread->set_interrupt_event(interrupt_event); | |
| 528 osthread->set_interrupted(false); | |
| 529 | |
| 530 thread->set_osthread(osthread); | |
| 531 | |
| 532 if (stack_size == 0) { | |
| 533 switch (thr_type) { | |
| 534 case os::java_thread: | |
| 535 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 536 if (JavaThread::stack_size_at_create() > 0) | |
| 537 stack_size = JavaThread::stack_size_at_create(); | |
| 538 break; | |
| 539 case os::compiler_thread: | |
| 540 if (CompilerThreadStackSize > 0) { | |
| 541 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 542 break; | |
| 543 } // else fall through: | |
| 544 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 545 case os::vm_thread: | |
| 546 case os::pgc_thread: | |
| 547 case os::cgc_thread: | |
| 548 case os::watcher_thread: | |
| 549 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 550 break; | |
| 551 } | |
| 552 } | |
| 553 | |
| 554 // Create the Win32 thread | |
| 555 // | |
| 556 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
| 557 // does not specify stack size. Instead, it specifies the size of | |
| 558 // initially committed space. The stack size is determined by | |
| 559 // PE header in the executable. If the committed "stack_size" is larger | |
| 560 // than default value in the PE header, the stack is rounded up to the | |
| 561 // nearest multiple of 1MB. For example if the launcher has default | |
| 562 // stack size of 320k, specifying any size less than 320k does not | |
| 563 // affect the actual stack size at all, it only affects the initial | |
| 564 // commitment. On the other hand, specifying 'stack_size' larger than | |
| 565 // default value may cause significant increase in memory usage, because | |
| 566 // not only the stack space will be rounded up to MB, but also the | |
| 567 // entire space is committed upfront. | |
| 568 // | |
| 569 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
| 570 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
| 571 // are not supposed to call CreateThread() directly according to MSDN | |
| 572 // document because JVM uses C runtime library. The good news is that the | |
| 573 // flag appears to work with _beginthredex() as well. | |
| 574 | |
| 575 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
| 576 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
| 577 #endif | |
| 578 | |
| 579 HANDLE thread_handle = | |
| 580 (HANDLE)_beginthreadex(NULL, | |
| 581 (unsigned)stack_size, | |
| 582 (unsigned (__stdcall *)(void*)) java_start, | |
| 583 thread, | |
| 584 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
| 585 &thread_id); | |
| 586 if (thread_handle == NULL) { | |
| 587 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
| 588 // without the flag. | |
| 589 thread_handle = | |
| 590 (HANDLE)_beginthreadex(NULL, | |
| 591 (unsigned)stack_size, | |
| 592 (unsigned (__stdcall *)(void*)) java_start, | |
| 593 thread, | |
| 594 CREATE_SUSPENDED, | |
| 595 &thread_id); | |
| 596 } | |
| 597 if (thread_handle == NULL) { | |
| 598 // Need to clean up stuff we've allocated so far | |
| 599 CloseHandle(osthread->interrupt_event()); | |
| 600 thread->set_osthread(NULL); | |
| 601 delete osthread; | |
| 602 return NULL; | |
| 603 } | |
| 604 | |
| 605 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 606 | |
| 607 // Store info on the Win32 thread into the OSThread | |
| 608 osthread->set_thread_handle(thread_handle); | |
| 609 osthread->set_thread_id(thread_id); | |
| 610 | |
| 611 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 612 osthread->set_state(INITIALIZED); | |
| 613 | |
| 614 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 615 return true; | |
| 616 } | |
| 617 | |
| 618 | |
| 619 // Free Win32 resources related to the OSThread | |
| 620 void os::free_thread(OSThread* osthread) { | |
| 621 assert(osthread != NULL, "osthread not set"); | |
| 622 CloseHandle(osthread->thread_handle()); | |
| 623 CloseHandle(osthread->interrupt_event()); | |
| 624 delete osthread; | |
| 625 } | |
| 626 | |
| 627 | |
| 628 static int has_performance_count = 0; | |
| 629 static jlong first_filetime; | |
| 630 static jlong initial_performance_count; | |
| 631 static jlong performance_frequency; | |
| 632 | |
| 633 | |
| 634 jlong as_long(LARGE_INTEGER x) { | |
| 635 jlong result = 0; // initialization to avoid warning | |
| 636 set_high(&result, x.HighPart); | |
| 637 set_low(&result, x.LowPart); | |
| 638 return result; | |
| 639 } | |
| 640 | |
| 641 | |
| 642 jlong os::elapsed_counter() { | |
| 643 LARGE_INTEGER count; | |
| 644 if (has_performance_count) { | |
| 645 QueryPerformanceCounter(&count); | |
| 646 return as_long(count) - initial_performance_count; | |
| 647 } else { | |
| 648 FILETIME wt; | |
| 649 GetSystemTimeAsFileTime(&wt); | |
| 650 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
| 651 } | |
| 652 } | |
| 653 | |
| 654 | |
| 655 jlong os::elapsed_frequency() { | |
| 656 if (has_performance_count) { | |
| 657 return performance_frequency; | |
| 658 } else { | |
| 659 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
| 660 return 10000000; | |
| 661 } | |
| 662 } | |
| 663 | |
| 664 | |
| 665 julong os::available_memory() { | |
| 666 return win32::available_memory(); | |
| 667 } | |
| 668 | |
| 669 julong os::win32::available_memory() { | |
|
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670 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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671 // value if total memory is larger than 4GB |
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672 MEMORYSTATUSEX ms; |
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673 ms.dwLength = sizeof(ms); |
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674 GlobalMemoryStatusEx(&ms); |
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675 |
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676 return (julong)ms.ullAvailPhys; |
| 0 | 677 } |
| 678 | |
| 679 julong os::physical_memory() { | |
| 680 return win32::physical_memory(); | |
| 681 } | |
| 682 | |
| 683 julong os::allocatable_physical_memory(julong size) { | |
|
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684 #ifdef _LP64 |
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685 return size; |
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686 #else |
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687 // Limit to 1400m because of the 2gb address space wall |
| 0 | 688 return MIN2(size, (julong)1400*M); |
|
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689 #endif |
| 0 | 690 } |
| 691 | |
| 692 // VC6 lacks DWORD_PTR | |
| 693 #if _MSC_VER < 1300 | |
| 694 typedef UINT_PTR DWORD_PTR; | |
| 695 #endif | |
| 696 | |
| 697 int os::active_processor_count() { | |
| 698 DWORD_PTR lpProcessAffinityMask = 0; | |
| 699 DWORD_PTR lpSystemAffinityMask = 0; | |
| 700 int proc_count = processor_count(); | |
| 701 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
| 702 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
| 703 // Nof active processors is number of bits in process affinity mask | |
| 704 int bitcount = 0; | |
| 705 while (lpProcessAffinityMask != 0) { | |
| 706 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
| 707 bitcount++; | |
| 708 } | |
| 709 return bitcount; | |
| 710 } else { | |
| 711 return proc_count; | |
| 712 } | |
| 713 } | |
| 714 | |
| 715 bool os::distribute_processes(uint length, uint* distribution) { | |
| 716 // Not yet implemented. | |
| 717 return false; | |
| 718 } | |
| 719 | |
| 720 bool os::bind_to_processor(uint processor_id) { | |
| 721 // Not yet implemented. | |
| 722 return false; | |
| 723 } | |
| 724 | |
| 725 static void initialize_performance_counter() { | |
| 726 LARGE_INTEGER count; | |
| 727 if (QueryPerformanceFrequency(&count)) { | |
| 728 has_performance_count = 1; | |
| 729 performance_frequency = as_long(count); | |
| 730 QueryPerformanceCounter(&count); | |
| 731 initial_performance_count = as_long(count); | |
| 732 } else { | |
| 733 has_performance_count = 0; | |
| 734 FILETIME wt; | |
| 735 GetSystemTimeAsFileTime(&wt); | |
| 736 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 737 } | |
| 738 } | |
| 739 | |
| 740 | |
| 741 double os::elapsedTime() { | |
| 742 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
| 743 } | |
| 744 | |
| 745 | |
| 746 // Windows format: | |
| 747 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
| 748 // Java format: | |
| 749 // Java standards require the number of milliseconds since 1/1/1970 | |
| 750 | |
| 751 // Constant offset - calculated using offset() | |
| 752 static jlong _offset = 116444736000000000; | |
| 753 // Fake time counter for reproducible results when debugging | |
| 754 static jlong fake_time = 0; | |
| 755 | |
| 756 #ifdef ASSERT | |
| 757 // Just to be safe, recalculate the offset in debug mode | |
| 758 static jlong _calculated_offset = 0; | |
| 759 static int _has_calculated_offset = 0; | |
| 760 | |
| 761 jlong offset() { | |
| 762 if (_has_calculated_offset) return _calculated_offset; | |
| 763 SYSTEMTIME java_origin; | |
| 764 java_origin.wYear = 1970; | |
| 765 java_origin.wMonth = 1; | |
| 766 java_origin.wDayOfWeek = 0; // ignored | |
| 767 java_origin.wDay = 1; | |
| 768 java_origin.wHour = 0; | |
| 769 java_origin.wMinute = 0; | |
| 770 java_origin.wSecond = 0; | |
| 771 java_origin.wMilliseconds = 0; | |
| 772 FILETIME jot; | |
| 773 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
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774 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
| 0 | 775 } |
| 776 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
| 777 _has_calculated_offset = 1; | |
| 778 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
| 779 return _calculated_offset; | |
| 780 } | |
| 781 #else | |
| 782 jlong offset() { | |
| 783 return _offset; | |
| 784 } | |
| 785 #endif | |
| 786 | |
| 787 jlong windows_to_java_time(FILETIME wt) { | |
| 788 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 789 return (a - offset()) / 10000; | |
| 790 } | |
| 791 | |
| 792 FILETIME java_to_windows_time(jlong l) { | |
| 793 jlong a = (l * 10000) + offset(); | |
| 794 FILETIME result; | |
| 795 result.dwHighDateTime = high(a); | |
| 796 result.dwLowDateTime = low(a); | |
| 797 return result; | |
| 798 } | |
| 799 | |
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800 // For now, we say that Windows does not support vtime. I have no idea |
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801 // whether it can actually be made to (DLD, 9/13/05). |
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802 |
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803 bool os::supports_vtime() { return false; } |
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804 bool os::enable_vtime() { return false; } |
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805 bool os::vtime_enabled() { return false; } |
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806 double os::elapsedVTime() { |
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807 // better than nothing, but not much |
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808 return elapsedTime(); |
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809 } |
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810 |
| 0 | 811 jlong os::javaTimeMillis() { |
| 812 if (UseFakeTimers) { | |
| 813 return fake_time++; | |
| 814 } else { | |
| 61 | 815 FILETIME wt; |
| 816 GetSystemTimeAsFileTime(&wt); | |
| 817 return windows_to_java_time(wt); | |
| 0 | 818 } |
| 819 } | |
| 820 | |
| 821 #define NANOS_PER_SEC CONST64(1000000000) | |
| 822 #define NANOS_PER_MILLISEC 1000000 | |
| 823 jlong os::javaTimeNanos() { | |
| 824 if (!has_performance_count) { | |
| 825 return javaTimeMillis() * NANOS_PER_MILLISEC; // the best we can do. | |
| 826 } else { | |
| 827 LARGE_INTEGER current_count; | |
| 828 QueryPerformanceCounter(¤t_count); | |
| 829 double current = as_long(current_count); | |
| 830 double freq = performance_frequency; | |
| 831 jlong time = (jlong)((current/freq) * NANOS_PER_SEC); | |
| 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; | |
| 847 if (freq < NANOS_PER_SEC) { | |
| 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; | |
| 851 } else if (freq > NANOS_PER_SEC) { | |
| 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; | |
| 855 info_ptr->max_value = (jlong)(max_counter / (freq / NANOS_PER_SEC)); | |
| 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 | |
| 917 void os::abort(bool dump_core) | |
| 918 { | |
| 919 os::shutdown(); | |
| 920 // no core dump on Windows | |
| 921 ::exit(1); | |
| 922 } | |
| 923 | |
| 924 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 925 void os::die() { | |
| 926 _exit(-1); | |
| 927 } | |
| 928 | |
| 929 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
| 930 // * dirent_md.c 1.15 00/02/02 | |
| 931 // | |
| 932 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
| 933 | |
| 934 /* Caller must have already run dirname through JVM_NativePath, which removes | |
| 935 duplicate slashes and converts all instances of '/' into '\\'. */ | |
| 936 | |
| 937 DIR * | |
| 938 os::opendir(const char *dirname) | |
| 939 { | |
| 940 assert(dirname != NULL, "just checking"); // hotspot change | |
| 941 DIR *dirp = (DIR *)malloc(sizeof(DIR)); | |
| 942 DWORD fattr; // hotspot change | |
| 943 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
| 944 | |
| 945 if (dirp == 0) { | |
| 946 errno = ENOMEM; | |
| 947 return 0; | |
| 948 } | |
| 949 | |
| 950 /* | |
| 951 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
| 952 * as a directory in FindFirstFile(). We detect this case here and | |
| 953 * prepend the current drive name. | |
| 954 */ | |
| 955 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
| 956 alt_dirname[0] = _getdrive() + 'A' - 1; | |
| 957 alt_dirname[1] = ':'; | |
| 958 alt_dirname[2] = '\\'; | |
| 959 alt_dirname[3] = '\0'; | |
| 960 dirname = alt_dirname; | |
| 961 } | |
| 962 | |
| 963 dirp->path = (char *)malloc(strlen(dirname) + 5); | |
| 964 if (dirp->path == 0) { | |
| 965 free(dirp); | |
| 966 errno = ENOMEM; | |
| 967 return 0; | |
| 968 } | |
| 969 strcpy(dirp->path, dirname); | |
| 970 | |
| 971 fattr = GetFileAttributes(dirp->path); | |
| 972 if (fattr == 0xffffffff) { | |
| 973 free(dirp->path); | |
| 974 free(dirp); | |
| 975 errno = ENOENT; | |
| 976 return 0; | |
| 977 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
| 978 free(dirp->path); | |
| 979 free(dirp); | |
| 980 errno = ENOTDIR; | |
| 981 return 0; | |
| 982 } | |
| 983 | |
| 984 /* Append "*.*", or possibly "\\*.*", to path */ | |
| 985 if (dirp->path[1] == ':' | |
| 986 && (dirp->path[2] == '\0' | |
| 987 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
| 988 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
| 989 strcat(dirp->path, "*.*"); | |
| 990 } else { | |
| 991 strcat(dirp->path, "\\*.*"); | |
| 992 } | |
| 993 | |
| 994 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
| 995 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 996 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
| 997 free(dirp->path); | |
| 998 free(dirp); | |
| 999 errno = EACCES; | |
| 1000 return 0; | |
| 1001 } | |
| 1002 } | |
| 1003 return dirp; | |
| 1004 } | |
| 1005 | |
| 1006 /* parameter dbuf unused on Windows */ | |
| 1007 | |
| 1008 struct dirent * | |
| 1009 os::readdir(DIR *dirp, dirent *dbuf) | |
| 1010 { | |
| 1011 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1012 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1013 return 0; | |
| 1014 } | |
| 1015 | |
| 1016 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
| 1017 | |
| 1018 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
| 1019 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
| 1020 errno = EBADF; | |
| 1021 return 0; | |
| 1022 } | |
| 1023 FindClose(dirp->handle); | |
| 1024 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1025 } | |
| 1026 | |
| 1027 return &dirp->dirent; | |
| 1028 } | |
| 1029 | |
| 1030 int | |
| 1031 os::closedir(DIR *dirp) | |
| 1032 { | |
| 1033 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1034 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
| 1035 if (!FindClose(dirp->handle)) { | |
| 1036 errno = EBADF; | |
| 1037 return -1; | |
| 1038 } | |
| 1039 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1040 } | |
| 1041 free(dirp->path); | |
| 1042 free(dirp); | |
| 1043 return 0; | |
| 1044 } | |
| 1045 | |
|
1353
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1046 const char* os::get_temp_directory() { |
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1047 const char *prop = Arguments::get_property("java.io.tmpdir"); |
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1048 if (prop != 0) return prop; |
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1049 static char path_buf[MAX_PATH]; |
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1050 if (GetTempPath(MAX_PATH, path_buf)>0) |
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1051 return path_buf; |
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1052 else{ |
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1053 path_buf[0]='\0'; |
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1054 return path_buf; |
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1055 } |
| 0 | 1056 } |
| 1057 | |
| 691 | 1058 static bool file_exists(const char* filename) { |
| 1059 if (filename == NULL || strlen(filename) == 0) { | |
| 1060 return false; | |
| 1061 } | |
| 1062 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
| 1063 } | |
| 1064 | |
| 1065 void os::dll_build_name(char *buffer, size_t buflen, | |
| 1066 const char* pname, const char* fname) { | |
| 1067 const size_t pnamelen = pname ? strlen(pname) : 0; | |
| 1068 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
| 1069 | |
| 1070 // Quietly truncates on buffer overflow. Should be an error. | |
| 1071 if (pnamelen + strlen(fname) + 10 > buflen) { | |
| 1072 *buffer = '\0'; | |
| 1073 return; | |
| 1074 } | |
| 1075 | |
| 1076 if (pnamelen == 0) { | |
| 1077 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
| 1078 } else if (c == ':' || c == '\\') { | |
| 1079 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
| 1080 } else if (strchr(pname, *os::path_separator()) != NULL) { | |
| 1081 int n; | |
| 1082 char** pelements = split_path(pname, &n); | |
| 1083 for (int i = 0 ; i < n ; i++) { | |
| 1084 char* path = pelements[i]; | |
| 1085 // Really shouldn't be NULL, but check can't hurt | |
| 1086 size_t plen = (path == NULL) ? 0 : strlen(path); | |
| 1087 if (plen == 0) { | |
| 1088 continue; // skip the empty path values | |
| 1089 } | |
| 1090 const char lastchar = path[plen - 1]; | |
| 1091 if (lastchar == ':' || lastchar == '\\') { | |
| 1092 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
| 1093 } else { | |
| 1094 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
| 1095 } | |
| 1096 if (file_exists(buffer)) { | |
| 1097 break; | |
| 1098 } | |
| 242 | 1099 } |
| 691 | 1100 // release the storage |
| 1101 for (int i = 0 ; i < n ; i++) { | |
| 1102 if (pelements[i] != NULL) { | |
| 1103 FREE_C_HEAP_ARRAY(char, pelements[i]); | |
| 1104 } | |
| 242 | 1105 } |
| 691 | 1106 if (pelements != NULL) { |
| 1107 FREE_C_HEAP_ARRAY(char*, pelements); | |
| 1108 } | |
| 1109 } else { | |
| 1110 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
| 1111 } | |
| 242 | 1112 } |
| 1113 | |
| 0 | 1114 // Needs to be in os specific directory because windows requires another |
| 1115 // header file <direct.h> | |
| 1116 const char* os::get_current_directory(char *buf, int buflen) { | |
| 1117 return _getcwd(buf, buflen); | |
| 1118 } | |
| 1119 | |
| 1120 //----------------------------------------------------------- | |
| 1121 // Helper functions for fatal error handler | |
| 1122 | |
| 1123 // The following library functions are resolved dynamically at runtime: | |
| 1124 | |
| 1125 // PSAPI functions, for Windows NT, 2000, XP | |
| 1126 | |
| 1127 // psapi.h doesn't come with Visual Studio 6; it can be downloaded as Platform | |
| 1128 // SDK from Microsoft. Here are the definitions copied from psapi.h | |
| 1129 typedef struct _MODULEINFO { | |
| 1130 LPVOID lpBaseOfDll; | |
| 1131 DWORD SizeOfImage; | |
| 1132 LPVOID EntryPoint; | |
| 1133 } MODULEINFO, *LPMODULEINFO; | |
| 1134 | |
| 1135 static BOOL (WINAPI *_EnumProcessModules) ( HANDLE, HMODULE *, DWORD, LPDWORD ); | |
| 1136 static DWORD (WINAPI *_GetModuleFileNameEx) ( HANDLE, HMODULE, LPTSTR, DWORD ); | |
| 1137 static BOOL (WINAPI *_GetModuleInformation)( HANDLE, HMODULE, LPMODULEINFO, DWORD ); | |
| 1138 | |
| 1139 // ToolHelp Functions, for Windows 95, 98 and ME | |
| 1140 | |
| 1141 static HANDLE(WINAPI *_CreateToolhelp32Snapshot)(DWORD,DWORD) ; | |
| 1142 static BOOL (WINAPI *_Module32First) (HANDLE,LPMODULEENTRY32) ; | |
| 1143 static BOOL (WINAPI *_Module32Next) (HANDLE,LPMODULEENTRY32) ; | |
| 1144 | |
| 1145 bool _has_psapi; | |
| 1146 bool _psapi_init = false; | |
| 1147 bool _has_toolhelp; | |
| 1148 | |
| 1149 static bool _init_psapi() { | |
| 1150 HINSTANCE psapi = LoadLibrary( "PSAPI.DLL" ) ; | |
| 1151 if( psapi == NULL ) return false ; | |
| 1152 | |
| 1153 _EnumProcessModules = CAST_TO_FN_PTR( | |
| 1154 BOOL(WINAPI *)(HANDLE, HMODULE *, DWORD, LPDWORD), | |
| 1155 GetProcAddress(psapi, "EnumProcessModules")) ; | |
| 1156 _GetModuleFileNameEx = CAST_TO_FN_PTR( | |
| 1157 DWORD (WINAPI *)(HANDLE, HMODULE, LPTSTR, DWORD), | |
| 1158 GetProcAddress(psapi, "GetModuleFileNameExA")); | |
| 1159 _GetModuleInformation = CAST_TO_FN_PTR( | |
| 1160 BOOL (WINAPI *)(HANDLE, HMODULE, LPMODULEINFO, DWORD), | |
| 1161 GetProcAddress(psapi, "GetModuleInformation")); | |
| 1162 | |
| 1163 _has_psapi = (_EnumProcessModules && _GetModuleFileNameEx && _GetModuleInformation); | |
| 1164 _psapi_init = true; | |
| 1165 return _has_psapi; | |
| 1166 } | |
| 1167 | |
| 1168 static bool _init_toolhelp() { | |
| 1169 HINSTANCE kernel32 = LoadLibrary("Kernel32.DLL") ; | |
| 1170 if (kernel32 == NULL) return false ; | |
| 1171 | |
| 1172 _CreateToolhelp32Snapshot = CAST_TO_FN_PTR( | |
| 1173 HANDLE(WINAPI *)(DWORD,DWORD), | |
| 1174 GetProcAddress(kernel32, "CreateToolhelp32Snapshot")); | |
| 1175 _Module32First = CAST_TO_FN_PTR( | |
| 1176 BOOL(WINAPI *)(HANDLE,LPMODULEENTRY32), | |
| 1177 GetProcAddress(kernel32, "Module32First" )); | |
| 1178 _Module32Next = CAST_TO_FN_PTR( | |
| 1179 BOOL(WINAPI *)(HANDLE,LPMODULEENTRY32), | |
| 1180 GetProcAddress(kernel32, "Module32Next" )); | |
| 1181 | |
| 1182 _has_toolhelp = (_CreateToolhelp32Snapshot && _Module32First && _Module32Next); | |
| 1183 return _has_toolhelp; | |
| 1184 } | |
| 1185 | |
| 1186 #ifdef _WIN64 | |
| 1187 // Helper routine which returns true if address in | |
| 1188 // within the NTDLL address space. | |
| 1189 // | |
| 1190 static bool _addr_in_ntdll( address addr ) | |
| 1191 { | |
| 1192 HMODULE hmod; | |
| 1193 MODULEINFO minfo; | |
| 1194 | |
| 1195 hmod = GetModuleHandle("NTDLL.DLL"); | |
| 1196 if ( hmod == NULL ) return false; | |
| 1197 if ( !_GetModuleInformation( GetCurrentProcess(), hmod, | |
| 1198 &minfo, sizeof(MODULEINFO)) ) | |
| 1199 return false; | |
| 1200 | |
| 1201 if ( (addr >= minfo.lpBaseOfDll) && | |
| 1202 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
| 1203 return true; | |
| 1204 else | |
| 1205 return false; | |
| 1206 } | |
| 1207 #endif | |
| 1208 | |
| 1209 | |
| 1210 // Enumerate all modules for a given process ID | |
| 1211 // | |
| 1212 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
| 1213 // different API for doing this. We use PSAPI.DLL on NT based | |
| 1214 // Windows and ToolHelp on 95/98/Me. | |
| 1215 | |
| 1216 // Callback function that is called by enumerate_modules() on | |
| 1217 // every DLL module. | |
| 1218 // Input parameters: | |
| 1219 // int pid, | |
| 1220 // char* module_file_name, | |
| 1221 // address module_base_addr, | |
| 1222 // unsigned module_size, | |
| 1223 // void* param | |
| 1224 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
| 1225 | |
| 1226 // enumerate_modules for Windows NT, using PSAPI | |
| 1227 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
| 1228 { | |
| 1229 HANDLE hProcess ; | |
| 1230 | |
| 1231 # define MAX_NUM_MODULES 128 | |
| 1232 HMODULE modules[MAX_NUM_MODULES]; | |
| 1233 static char filename[ MAX_PATH ]; | |
| 1234 int result = 0; | |
| 1235 | |
| 1236 if (!_has_psapi && (_psapi_init || !_init_psapi())) return 0; | |
| 1237 | |
| 1238 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
| 1239 FALSE, pid ) ; | |
| 1240 if (hProcess == NULL) return 0; | |
| 1241 | |
| 1242 DWORD size_needed; | |
| 1243 if (!_EnumProcessModules(hProcess, modules, | |
| 1244 sizeof(modules), &size_needed)) { | |
| 1245 CloseHandle( hProcess ); | |
| 1246 return 0; | |
| 1247 } | |
| 1248 | |
| 1249 // number of modules that are currently loaded | |
| 1250 int num_modules = size_needed / sizeof(HMODULE); | |
| 1251 | |
| 1252 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
| 1253 // Get Full pathname: | |
| 1254 if(!_GetModuleFileNameEx(hProcess, modules[i], | |
| 1255 filename, sizeof(filename))) { | |
| 1256 filename[0] = '\0'; | |
| 1257 } | |
| 1258 | |
| 1259 MODULEINFO modinfo; | |
| 1260 if (!_GetModuleInformation(hProcess, modules[i], | |
| 1261 &modinfo, sizeof(modinfo))) { | |
| 1262 modinfo.lpBaseOfDll = NULL; | |
| 1263 modinfo.SizeOfImage = 0; | |
| 1264 } | |
| 1265 | |
| 1266 // Invoke callback function | |
| 1267 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
| 1268 modinfo.SizeOfImage, param); | |
| 1269 if (result) break; | |
| 1270 } | |
| 1271 | |
| 1272 CloseHandle( hProcess ) ; | |
| 1273 return result; | |
| 1274 } | |
| 1275 | |
| 1276 | |
| 1277 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
| 1278 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
| 1279 { | |
| 1280 HANDLE hSnapShot ; | |
| 1281 static MODULEENTRY32 modentry ; | |
| 1282 int result = 0; | |
| 1283 | |
| 1284 if (!_has_toolhelp) return 0; | |
| 1285 | |
| 1286 // Get a handle to a Toolhelp snapshot of the system | |
| 1287 hSnapShot = _CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; | |
| 1288 if( hSnapShot == INVALID_HANDLE_VALUE ) { | |
| 1289 return FALSE ; | |
| 1290 } | |
| 1291 | |
| 1292 // iterate through all modules | |
| 1293 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
| 1294 bool not_done = _Module32First( hSnapShot, &modentry ) != 0; | |
| 1295 | |
| 1296 while( not_done ) { | |
| 1297 // invoke the callback | |
| 1298 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
| 1299 modentry.modBaseSize, param); | |
| 1300 if (result) break; | |
| 1301 | |
| 1302 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
| 1303 not_done = _Module32Next( hSnapShot, &modentry ) != 0; | |
| 1304 } | |
| 1305 | |
| 1306 CloseHandle(hSnapShot); | |
| 1307 return result; | |
| 1308 } | |
| 1309 | |
| 1310 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
| 1311 { | |
| 1312 // Get current process ID if caller doesn't provide it. | |
| 1313 if (!pid) pid = os::current_process_id(); | |
| 1314 | |
| 1315 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
| 1316 else return _enumerate_modules_windows(pid, func, param); | |
| 1317 } | |
| 1318 | |
| 1319 struct _modinfo { | |
| 1320 address addr; | |
| 1321 char* full_path; // point to a char buffer | |
| 1322 int buflen; // size of the buffer | |
| 1323 address base_addr; | |
| 1324 }; | |
| 1325 | |
| 1326 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
| 1327 unsigned size, void * param) { | |
| 1328 struct _modinfo *pmod = (struct _modinfo *)param; | |
| 1329 if (!pmod) return -1; | |
| 1330 | |
| 1331 if (base_addr <= pmod->addr && | |
| 1332 base_addr+size > pmod->addr) { | |
| 1333 // if a buffer is provided, copy path name to the buffer | |
| 1334 if (pmod->full_path) { | |
| 1335 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
| 1336 } | |
| 1337 pmod->base_addr = base_addr; | |
| 1338 return 1; | |
| 1339 } | |
| 1340 return 0; | |
| 1341 } | |
| 1342 | |
| 1343 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1344 int buflen, int* offset) { | |
| 1345 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always | |
| 1346 // return the full path to the DLL file, sometimes it returns path | |
| 1347 // to the corresponding PDB file (debug info); sometimes it only | |
| 1348 // returns partial path, which makes life painful. | |
| 1349 | |
| 1350 struct _modinfo mi; | |
| 1351 mi.addr = addr; | |
| 1352 mi.full_path = buf; | |
| 1353 mi.buflen = buflen; | |
| 1354 int pid = os::current_process_id(); | |
| 1355 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { | |
| 1356 // buf already contains path name | |
| 1357 if (offset) *offset = addr - mi.base_addr; | |
| 1358 return true; | |
| 1359 } else { | |
| 1360 if (buf) buf[0] = '\0'; | |
| 1361 if (offset) *offset = -1; | |
| 1362 return false; | |
| 1363 } | |
| 1364 } | |
| 1365 | |
| 1366 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1367 int buflen, int *offset) { | |
| 1368 // Unimplemented on Windows - in order to use SymGetSymFromAddr(), | |
| 1369 // we need to initialize imagehlp/dbghelp, then load symbol table | |
| 1370 // for every module. That's too much work to do after a fatal error. | |
| 1371 // For an example on how to implement this function, see 1.4.2. | |
| 1372 if (offset) *offset = -1; | |
| 1373 if (buf) buf[0] = '\0'; | |
| 1374 return false; | |
| 1375 } | |
| 1376 | |
| 1377 // save the start and end address of jvm.dll into param[0] and param[1] | |
| 1378 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
| 1379 unsigned size, void * param) { | |
| 1380 if (!param) return -1; | |
| 1381 | |
| 1382 if (base_addr <= (address)_locate_jvm_dll && | |
| 1383 base_addr+size > (address)_locate_jvm_dll) { | |
| 1384 ((address*)param)[0] = base_addr; | |
| 1385 ((address*)param)[1] = base_addr + size; | |
| 1386 return 1; | |
| 1387 } | |
| 1388 return 0; | |
| 1389 } | |
| 1390 | |
| 1391 address vm_lib_location[2]; // start and end address of jvm.dll | |
| 1392 | |
| 1393 // check if addr is inside jvm.dll | |
| 1394 bool os::address_is_in_vm(address addr) { | |
| 1395 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
| 1396 int pid = os::current_process_id(); | |
| 1397 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
| 1398 assert(false, "Can't find jvm module."); | |
| 1399 return false; | |
| 1400 } | |
| 1401 } | |
| 1402 | |
| 1403 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
| 1404 } | |
| 1405 | |
| 1406 // print module info; param is outputStream* | |
| 1407 static int _print_module(int pid, char* fname, address base, | |
| 1408 unsigned size, void* param) { | |
| 1409 if (!param) return -1; | |
| 1410 | |
| 1411 outputStream* st = (outputStream*)param; | |
| 1412 | |
| 1413 address end_addr = base + size; | |
| 1414 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
| 1415 return 0; | |
| 1416 } | |
| 1417 | |
| 1418 // Loads .dll/.so and | |
| 1419 // in case of error it checks if .dll/.so was built for the | |
| 1420 // same architecture as Hotspot is running on | |
| 1421 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
| 1422 { | |
| 1423 void * result = LoadLibrary(name); | |
| 1424 if (result != NULL) | |
| 1425 { | |
| 1426 return result; | |
| 1427 } | |
| 1428 | |
| 1429 long errcode = GetLastError(); | |
| 1430 if (errcode == ERROR_MOD_NOT_FOUND) { | |
| 1431 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
| 1432 ebuf[ebuflen-1]='\0'; | |
| 1433 return NULL; | |
| 1434 } | |
| 1435 | |
| 1436 // Parsing dll below | |
| 1437 // If we can read dll-info and find that dll was built | |
| 1438 // for an architecture other than Hotspot is running in | |
| 1439 // - then print to buffer "DLL was built for a different architecture" | |
| 1440 // else call getLastErrorString to obtain system error message | |
| 1441 | |
| 1442 // Read system error message into ebuf | |
| 1443 // It may or may not be overwritten below (in the for loop and just above) | |
| 1444 getLastErrorString(ebuf, (size_t) ebuflen); | |
| 1445 ebuf[ebuflen-1]='\0'; | |
| 1446 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
| 1447 if (file_descriptor<0) | |
| 1448 { | |
| 1449 return NULL; | |
| 1450 } | |
| 1451 | |
| 1452 uint32_t signature_offset; | |
| 1453 uint16_t lib_arch=0; | |
| 1454 bool failed_to_get_lib_arch= | |
| 1455 ( | |
| 1456 //Go to position 3c in the dll | |
| 1457 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
| 1458 || | |
| 1459 // Read loacation of signature | |
| 1460 (sizeof(signature_offset)!= | |
| 1461 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
| 1462 || | |
| 1463 //Go to COFF File Header in dll | |
| 1464 //that is located after"signature" (4 bytes long) | |
| 1465 (os::seek_to_file_offset(file_descriptor, | |
| 1466 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
| 1467 || | |
| 1468 //Read field that contains code of architecture | |
| 1469 // that dll was build for | |
| 1470 (sizeof(lib_arch)!= | |
| 1471 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
| 1472 ); | |
| 1473 | |
| 1474 ::close(file_descriptor); | |
| 1475 if (failed_to_get_lib_arch) | |
| 1476 { | |
| 1477 // file i/o error - report getLastErrorString(...) msg | |
| 1478 return NULL; | |
| 1479 } | |
| 1480 | |
| 1481 typedef struct | |
| 1482 { | |
| 1483 uint16_t arch_code; | |
| 1484 char* arch_name; | |
| 1485 } arch_t; | |
| 1486 | |
| 1487 static const arch_t arch_array[]={ | |
| 1488 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
| 1489 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
| 1490 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
| 1491 }; | |
| 1492 #if (defined _M_IA64) | |
| 1493 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
| 1494 #elif (defined _M_AMD64) | |
| 1495 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
| 1496 #elif (defined _M_IX86) | |
| 1497 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
| 1498 #else | |
| 1499 #error Method os::dll_load requires that one of following \ | |
| 1500 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
| 1501 #endif | |
| 1502 | |
| 1503 | |
| 1504 // Obtain a string for printf operation | |
| 1505 // lib_arch_str shall contain string what platform this .dll was built for | |
| 1506 // running_arch_str shall string contain what platform Hotspot was built for | |
| 1507 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
| 1508 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
| 1509 { | |
| 1510 if (lib_arch==arch_array[i].arch_code) | |
| 1511 lib_arch_str=arch_array[i].arch_name; | |
| 1512 if (running_arch==arch_array[i].arch_code) | |
| 1513 running_arch_str=arch_array[i].arch_name; | |
| 1514 } | |
| 1515 | |
| 1516 assert(running_arch_str, | |
| 1517 "Didn't find runing architecture code in arch_array"); | |
| 1518 | |
| 1519 // If the architure is right | |
| 1520 // but some other error took place - report getLastErrorString(...) msg | |
| 1521 if (lib_arch == running_arch) | |
| 1522 { | |
| 1523 return NULL; | |
| 1524 } | |
| 1525 | |
| 1526 if (lib_arch_str!=NULL) | |
| 1527 { | |
| 1528 ::_snprintf(ebuf, ebuflen-1, | |
| 1529 "Can't load %s-bit .dll on a %s-bit platform", | |
| 1530 lib_arch_str,running_arch_str); | |
| 1531 } | |
| 1532 else | |
| 1533 { | |
| 1534 // don't know what architecture this dll was build for | |
| 1535 ::_snprintf(ebuf, ebuflen-1, | |
| 1536 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
| 1537 lib_arch,running_arch_str); | |
| 1538 } | |
| 1539 | |
| 1540 return NULL; | |
| 1541 } | |
| 1542 | |
| 1543 | |
| 1544 void os::print_dll_info(outputStream *st) { | |
| 1545 int pid = os::current_process_id(); | |
| 1546 st->print_cr("Dynamic libraries:"); | |
| 1547 enumerate_modules(pid, _print_module, (void *)st); | |
| 1548 } | |
| 1549 | |
|
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1550 // function pointer to Windows API "GetNativeSystemInfo". |
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1551 typedef void (WINAPI *GetNativeSystemInfo_func_type)(LPSYSTEM_INFO); |
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1552 static GetNativeSystemInfo_func_type _GetNativeSystemInfo; |
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1553 |
| 0 | 1554 void os::print_os_info(outputStream* st) { |
|
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1555 st->print("OS:"); |
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1556 |
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1557 OSVERSIONINFOEX osvi; |
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1558 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
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1559 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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1560 |
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1561 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
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1562 st->print_cr("N/A"); |
|
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1563 return; |
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1564 } |
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1565 |
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1566 int os_vers = osvi.dwMajorVersion * 1000 + osvi.dwMinorVersion; |
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1567 if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) { |
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1568 switch (os_vers) { |
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1569 case 3051: st->print(" Windows NT 3.51"); break; |
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1570 case 4000: st->print(" Windows NT 4.0"); break; |
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1571 case 5000: st->print(" Windows 2000"); break; |
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1572 case 5001: st->print(" Windows XP"); break; |
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1573 case 5002: |
|
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1574 case 6000: |
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1575 case 6001: { |
|
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1576 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
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1577 // find out whether we are running on 64 bit processor or not. |
|
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1578 SYSTEM_INFO si; |
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1579 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
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1580 // Check to see if _GetNativeSystemInfo has been initialized. |
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1581 if (_GetNativeSystemInfo == NULL) { |
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1582 HMODULE hKernel32 = GetModuleHandle(TEXT("kernel32.dll")); |
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1583 _GetNativeSystemInfo = |
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1584 CAST_TO_FN_PTR(GetNativeSystemInfo_func_type, |
|
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1585 GetProcAddress(hKernel32, |
|
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1586 "GetNativeSystemInfo")); |
|
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1587 if (_GetNativeSystemInfo == NULL) |
|
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1588 GetSystemInfo(&si); |
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1589 } else { |
|
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1590 _GetNativeSystemInfo(&si); |
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1591 } |
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1592 if (os_vers == 5002) { |
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1593 if (osvi.wProductType == VER_NT_WORKSTATION && |
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1594 si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
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1595 st->print(" Windows XP x64 Edition"); |
|
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1596 else |
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1597 st->print(" Windows Server 2003 family"); |
|
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1598 } else if (os_vers == 6000) { |
|
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1599 if (osvi.wProductType == VER_NT_WORKSTATION) |
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1600 st->print(" Windows Vista"); |
|
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1601 else |
|
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1602 st->print(" Windows Server 2008"); |
|
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1603 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
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1604 st->print(" , 64 bit"); |
|
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1605 } else if (os_vers == 6001) { |
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1606 if (osvi.wProductType == VER_NT_WORKSTATION) { |
|
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|
1607 st->print(" Windows 7"); |
|
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1608 } else { |
|
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1609 // Unrecognized windows, print out its major and minor versions |
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1610 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
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1611 } |
|
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1612 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
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1613 st->print(" , 64 bit"); |
|
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1614 } else { // future os |
|
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1615 // Unrecognized windows, print out its major and minor versions |
|
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1616 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
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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 } |
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1620 break; |
|
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1621 } |
|
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1622 default: // future windows, print out its major and minor versions |
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1623 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
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1624 } |
|
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1625 } else { |
|
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1626 switch (os_vers) { |
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1627 case 4000: st->print(" Windows 95"); break; |
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1628 case 4010: st->print(" Windows 98"); break; |
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1629 case 4090: st->print(" Windows Me"); break; |
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1630 default: // future windows, print out its major and minor versions |
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1631 st->print(" Windows %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
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1632 } |
|
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1633 } |
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1634 st->print(" Build %d", osvi.dwBuildNumber); |
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1635 st->print(" %s", osvi.szCSDVersion); // service pack |
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1636 st->cr(); |
| 0 | 1637 } |
| 1638 | |
| 1639 void os::print_memory_info(outputStream* st) { | |
| 1640 st->print("Memory:"); | |
| 1641 st->print(" %dk page", os::vm_page_size()>>10); | |
| 1642 | |
|
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|
1643 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
|
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1644 // value if total memory is larger than 4GB |
|
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|
1645 MEMORYSTATUSEX ms; |
|
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|
1646 ms.dwLength = sizeof(ms); |
|
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|
1647 GlobalMemoryStatusEx(&ms); |
| 0 | 1648 |
| 1649 st->print(", physical %uk", os::physical_memory() >> 10); | |
| 1650 st->print("(%uk free)", os::available_memory() >> 10); | |
| 1651 | |
|
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1652 st->print(", swap %uk", ms.ullTotalPageFile >> 10); |
|
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1653 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
| 0 | 1654 st->cr(); |
| 1655 } | |
| 1656 | |
| 1657 void os::print_siginfo(outputStream *st, void *siginfo) { | |
| 1658 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
| 1659 st->print("siginfo:"); | |
| 1660 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
| 1661 | |
| 1662 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 1663 er->NumberParameters >= 2) { | |
| 1664 switch (er->ExceptionInformation[0]) { | |
| 1665 case 0: st->print(", reading address"); break; | |
| 1666 case 1: st->print(", writing address"); break; | |
| 1667 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
| 1668 er->ExceptionInformation[0]); | |
| 1669 } | |
| 1670 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
| 1671 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
| 1672 er->NumberParameters >= 2 && UseSharedSpaces) { | |
| 1673 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 1674 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
| 1675 st->print("\n\nError accessing class data sharing archive." \ | |
| 1676 " Mapped file inaccessible during execution, " \ | |
| 1677 " possible disk/network problem."); | |
| 1678 } | |
| 1679 } else { | |
| 1680 int num = er->NumberParameters; | |
| 1681 if (num > 0) { | |
| 1682 st->print(", ExceptionInformation="); | |
| 1683 for (int i = 0; i < num; i++) { | |
| 1684 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
| 1685 } | |
| 1686 } | |
| 1687 } | |
| 1688 st->cr(); | |
| 1689 } | |
| 1690 | |
| 1691 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 1692 // do nothing | |
| 1693 } | |
| 1694 | |
| 1695 static char saved_jvm_path[MAX_PATH] = {0}; | |
| 1696 | |
| 1697 // Find the full path to the current module, jvm.dll or jvm_g.dll | |
| 1698 void os::jvm_path(char *buf, jint buflen) { | |
| 1699 // Error checking. | |
| 1700 if (buflen < MAX_PATH) { | |
| 1701 assert(false, "must use a large-enough buffer"); | |
| 1702 buf[0] = '\0'; | |
| 1703 return; | |
| 1704 } | |
| 1705 // Lazy resolve the path to current module. | |
| 1706 if (saved_jvm_path[0] != 0) { | |
| 1707 strcpy(buf, saved_jvm_path); | |
| 1708 return; | |
| 1709 } | |
| 1710 | |
| 1985 | 1711 buf[0] = '\0'; |
| 1712 if (strcmp(Arguments::sun_java_launcher(), "gamma") == 0) { | |
| 1713 // Support for the gamma launcher. Check for an | |
| 1714 // ALT_JAVA_HOME or JAVA_HOME environment variable | |
| 1715 // and fix up the path so it looks like | |
| 1716 // libjvm.so is installed there (append a fake suffix | |
| 1717 // hotspot/libjvm.so). | |
| 1718 char* java_home_var = ::getenv("ALT_JAVA_HOME"); | |
| 1719 if (java_home_var == NULL) { | |
| 1720 java_home_var = ::getenv("JAVA_HOME"); | |
| 1721 } | |
| 1722 if (java_home_var != NULL && java_home_var[0] != 0) { | |
| 1723 | |
| 1724 strncpy(buf, java_home_var, buflen); | |
| 1725 | |
| 1726 // determine if this is a legacy image or modules image | |
| 1727 // modules image doesn't have "jre" subdirectory | |
| 1728 size_t len = strlen(buf); | |
| 1729 char* jrebin_p = buf + len; | |
| 1730 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
| 1731 if (0 != _access(buf, 0)) { | |
| 1732 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
| 1733 } | |
| 1734 len = strlen(buf); | |
| 1735 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
| 1736 } | |
| 1737 } | |
| 1738 | |
| 1739 if(buf[0] == '\0') { | |
| 0 | 1740 GetModuleFileName(vm_lib_handle, buf, buflen); |
| 1985 | 1741 } |
| 0 | 1742 strcpy(saved_jvm_path, buf); |
| 1743 } | |
| 1744 | |
| 1745 | |
| 1746 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 1747 #ifndef _WIN64 | |
| 1748 st->print("_"); | |
| 1749 #endif | |
| 1750 } | |
| 1751 | |
| 1752 | |
| 1753 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 1754 #ifndef _WIN64 | |
| 1755 st->print("@%d", args_size * sizeof(int)); | |
| 1756 #endif | |
| 1757 } | |
| 1758 | |
|
1980
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1759 // This method is a copy of JDK's sysGetLastErrorString |
|
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1760 // from src/windows/hpi/src/system_md.c |
|
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1761 |
|
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1762 size_t os::lasterror(char *buf, size_t len) { |
|
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1763 long errval; |
|
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|
1764 |
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1765 if ((errval = GetLastError()) != 0) { |
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1766 /* DOS error */ |
|
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|
1767 int n = (int)FormatMessage( |
|
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1768 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
|
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1769 NULL, |
|
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1770 errval, |
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1771 0, |
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1772 buf, |
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1773 (DWORD)len, |
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1774 NULL); |
|
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1775 if (n > 3) { |
|
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1776 /* Drop final '.', CR, LF */ |
|
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1777 if (buf[n - 1] == '\n') n--; |
|
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1778 if (buf[n - 1] == '\r') n--; |
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1779 if (buf[n - 1] == '.') n--; |
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1780 buf[n] = '\0'; |
|
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|
1781 } |
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|
1782 return n; |
|
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|
1783 } |
|
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|
1784 |
|
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|
1785 if (errno != 0) { |
|
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|
1786 /* C runtime error that has no corresponding DOS error code */ |
|
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1787 const char *s = strerror(errno); |
|
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|
1788 size_t n = strlen(s); |
|
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1789 if (n >= len) n = len - 1; |
|
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|
1790 strncpy(buf, s, n); |
|
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|
1791 buf[n] = '\0'; |
|
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|
1792 return n; |
|
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|
1793 } |
|
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|
1794 return 0; |
|
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|
1795 } |
|
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|
1796 |
| 0 | 1797 // sun.misc.Signal |
| 1798 // NOTE that this is a workaround for an apparent kernel bug where if | |
| 1799 // a signal handler for SIGBREAK is installed then that signal handler | |
| 1800 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
| 1801 // See bug 4416763. | |
| 1802 static void (*sigbreakHandler)(int) = NULL; | |
| 1803 | |
| 1804 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 1805 os::signal_notify(sig); | |
| 1806 // We need to reinstate the signal handler each time... | |
| 1807 os::signal(sig, (void*)UserHandler); | |
| 1808 } | |
| 1809 | |
| 1810 void* os::user_handler() { | |
| 1811 return (void*) UserHandler; | |
| 1812 } | |
| 1813 | |
| 1814 void* os::signal(int signal_number, void* handler) { | |
| 1815 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
| 1816 void (*oldHandler)(int) = sigbreakHandler; | |
| 1817 sigbreakHandler = (void (*)(int)) handler; | |
| 1818 return (void*) oldHandler; | |
| 1819 } else { | |
| 1820 return (void*)::signal(signal_number, (void (*)(int))handler); | |
| 1821 } | |
| 1822 } | |
| 1823 | |
| 1824 void os::signal_raise(int signal_number) { | |
| 1825 raise(signal_number); | |
| 1826 } | |
| 1827 | |
| 1828 // The Win32 C runtime library maps all console control events other than ^C | |
| 1829 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
| 1830 // logoff, and shutdown events. We therefore install our own console handler | |
| 1831 // that raises SIGTERM for the latter cases. | |
| 1832 // | |
| 1833 static BOOL WINAPI consoleHandler(DWORD event) { | |
| 1834 switch(event) { | |
| 1835 case CTRL_C_EVENT: | |
| 1836 if (is_error_reported()) { | |
| 1837 // Ctrl-C is pressed during error reporting, likely because the error | |
| 1838 // handler fails to abort. Let VM die immediately. | |
| 1839 os::die(); | |
| 1840 } | |
| 1841 | |
| 1842 os::signal_raise(SIGINT); | |
| 1843 return TRUE; | |
| 1844 break; | |
| 1845 case CTRL_BREAK_EVENT: | |
| 1846 if (sigbreakHandler != NULL) { | |
| 1847 (*sigbreakHandler)(SIGBREAK); | |
| 1848 } | |
| 1849 return TRUE; | |
| 1850 break; | |
| 1851 case CTRL_CLOSE_EVENT: | |
| 1852 case CTRL_LOGOFF_EVENT: | |
| 1853 case CTRL_SHUTDOWN_EVENT: | |
| 1854 os::signal_raise(SIGTERM); | |
| 1855 return TRUE; | |
| 1856 break; | |
| 1857 default: | |
| 1858 break; | |
| 1859 } | |
| 1860 return FALSE; | |
| 1861 } | |
| 1862 | |
| 1863 /* | |
| 1864 * The following code is moved from os.cpp for making this | |
| 1865 * code platform specific, which it is by its very nature. | |
| 1866 */ | |
| 1867 | |
| 1868 // Return maximum OS signal used + 1 for internal use only | |
| 1869 // Used as exit signal for signal_thread | |
| 1870 int os::sigexitnum_pd(){ | |
| 1871 return NSIG; | |
| 1872 } | |
| 1873 | |
| 1874 // a counter for each possible signal value, including signal_thread exit signal | |
| 1875 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
| 1876 static HANDLE sig_sem; | |
| 1877 | |
| 1878 void os::signal_init_pd() { | |
| 1879 // Initialize signal structures | |
| 1880 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
| 1881 | |
| 1882 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
| 1883 | |
| 1884 // Programs embedding the VM do not want it to attempt to receive | |
| 1885 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
| 1886 // shutdown hooks mechanism introduced in 1.3. For example, when | |
| 1887 // the VM is run as part of a Windows NT service (i.e., a servlet | |
| 1888 // engine in a web server), the correct behavior is for any console | |
| 1889 // control handler to return FALSE, not TRUE, because the OS's | |
| 1890 // "final" handler for such events allows the process to continue if | |
| 1891 // it is a service (while terminating it if it is not a service). | |
| 1892 // To make this behavior uniform and the mechanism simpler, we | |
| 1893 // completely disable the VM's usage of these console events if -Xrs | |
| 1894 // (=ReduceSignalUsage) is specified. This means, for example, that | |
| 1895 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
| 1896 // case. See bugs 4323062, 4345157, and related bugs. | |
| 1897 | |
| 1898 if (!ReduceSignalUsage) { | |
| 1899 // Add a CTRL-C handler | |
| 1900 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
| 1901 } | |
| 1902 } | |
| 1903 | |
| 1904 void os::signal_notify(int signal_number) { | |
| 1905 BOOL ret; | |
| 1906 | |
| 1907 Atomic::inc(&pending_signals[signal_number]); | |
| 1908 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 1909 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 1910 } | |
| 1911 | |
| 1912 static int check_pending_signals(bool wait_for_signal) { | |
| 1913 DWORD ret; | |
| 1914 while (true) { | |
| 1915 for (int i = 0; i < NSIG + 1; i++) { | |
| 1916 jint n = pending_signals[i]; | |
| 1917 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 1918 return i; | |
| 1919 } | |
| 1920 } | |
| 1921 if (!wait_for_signal) { | |
| 1922 return -1; | |
| 1923 } | |
| 1924 | |
| 1925 JavaThread *thread = JavaThread::current(); | |
| 1926 | |
| 1927 ThreadBlockInVM tbivm(thread); | |
| 1928 | |
| 1929 bool threadIsSuspended; | |
| 1930 do { | |
| 1931 thread->set_suspend_equivalent(); | |
| 1932 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 1933 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
| 1934 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
| 1935 | |
| 1936 // were we externally suspended while we were waiting? | |
| 1937 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 1938 if (threadIsSuspended) { | |
| 1939 // | |
| 1940 // The semaphore has been incremented, but while we were waiting | |
| 1941 // another thread suspended us. We don't want to continue running | |
| 1942 // while suspended because that would surprise the thread that | |
| 1943 // suspended us. | |
| 1944 // | |
| 1945 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 1946 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 1947 | |
| 1948 thread->java_suspend_self(); | |
| 1949 } | |
| 1950 } while (threadIsSuspended); | |
| 1951 } | |
| 1952 } | |
| 1953 | |
| 1954 int os::signal_lookup() { | |
| 1955 return check_pending_signals(false); | |
| 1956 } | |
| 1957 | |
| 1958 int os::signal_wait() { | |
| 1959 return check_pending_signals(true); | |
| 1960 } | |
| 1961 | |
| 1962 // Implicit OS exception handling | |
| 1963 | |
| 1964 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
| 1965 JavaThread* thread = JavaThread::current(); | |
| 1966 // Save pc in thread | |
| 1967 #ifdef _M_IA64 | |
| 1968 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->StIIP); | |
| 1969 // Set pc to handler | |
| 1970 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
| 1971 #elif _M_AMD64 | |
| 1972 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Rip); | |
| 1973 // Set pc to handler | |
| 1974 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
| 1975 #else | |
| 1976 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Eip); | |
| 1977 // Set pc to handler | |
| 1978 exceptionInfo->ContextRecord->Eip = (LONG)handler; | |
| 1979 #endif | |
| 1980 | |
| 1981 // Continue the execution | |
| 1982 return EXCEPTION_CONTINUE_EXECUTION; | |
| 1983 } | |
| 1984 | |
| 1985 | |
| 1986 // Used for PostMortemDump | |
| 1987 extern "C" void safepoints(); | |
| 1988 extern "C" void find(int x); | |
| 1989 extern "C" void events(); | |
| 1990 | |
| 1991 // According to Windows API documentation, an illegal instruction sequence should generate | |
| 1992 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
| 1993 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
| 1994 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
| 1995 | |
| 1996 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
| 1997 | |
| 1998 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
| 1999 // Once a system header becomes available, the "real" define should be | |
| 2000 // included or copied here. | |
| 2001 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
| 2002 | |
| 2003 #define def_excpt(val) #val, val | |
| 2004 | |
| 2005 struct siglabel { | |
| 2006 char *name; | |
| 2007 int number; | |
| 2008 }; | |
| 2009 | |
| 2010 struct siglabel exceptlabels[] = { | |
| 2011 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
| 2012 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
| 2013 def_excpt(EXCEPTION_BREAKPOINT), | |
| 2014 def_excpt(EXCEPTION_SINGLE_STEP), | |
| 2015 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
| 2016 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
| 2017 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
| 2018 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
| 2019 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
| 2020 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
| 2021 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
| 2022 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
| 2023 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
| 2024 def_excpt(EXCEPTION_INT_OVERFLOW), | |
| 2025 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
| 2026 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
| 2027 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
| 2028 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
| 2029 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
| 2030 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
| 2031 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
| 2032 def_excpt(EXCEPTION_GUARD_PAGE), | |
| 2033 def_excpt(EXCEPTION_INVALID_HANDLE), | |
| 2034 NULL, 0 | |
| 2035 }; | |
| 2036 | |
| 2037 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
| 2038 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
| 2039 if (exceptlabels[i].number == exception_code) { | |
| 2040 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
| 2041 return buf; | |
| 2042 } | |
| 2043 } | |
| 2044 | |
| 2045 return NULL; | |
| 2046 } | |
| 2047 | |
| 2048 //----------------------------------------------------------------------------- | |
| 2049 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2050 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
| 2051 // (division by zero is handled explicitly) | |
| 2052 #ifdef _M_IA64 | |
| 2053 assert(0, "Fix Handle_IDiv_Exception"); | |
| 2054 #elif _M_AMD64 | |
| 2055 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2056 address pc = (address)ctx->Rip; | |
| 2057 NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc)); | |
| 2058 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2059 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2060 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
| 2061 // set correct result values and continue after idiv instruction | |
| 2062 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2063 ctx->Rax = (DWORD)min_jint; // result | |
| 2064 ctx->Rdx = (DWORD)0; // remainder | |
| 2065 // Continue the execution | |
| 2066 #else | |
| 2067 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2068 address pc = (address)ctx->Eip; | |
| 2069 NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc)); | |
| 2070 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2071 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2072 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
| 2073 // set correct result values and continue after idiv instruction | |
| 2074 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2075 ctx->Eax = (DWORD)min_jint; // result | |
| 2076 ctx->Edx = (DWORD)0; // remainder | |
| 2077 // Continue the execution | |
| 2078 #endif | |
| 2079 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2080 } | |
| 2081 | |
| 2082 #ifndef _WIN64 | |
| 2083 //----------------------------------------------------------------------------- | |
| 2084 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
|
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2085 // handle exception caused by native method modifying control word |
| 0 | 2086 PCONTEXT ctx = exceptionInfo->ContextRecord; |
| 2087 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2088 | |
| 2089 switch (exception_code) { | |
| 2090 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
| 2091 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
| 2092 case EXCEPTION_FLT_INEXACT_RESULT: | |
| 2093 case EXCEPTION_FLT_INVALID_OPERATION: | |
| 2094 case EXCEPTION_FLT_OVERFLOW: | |
| 2095 case EXCEPTION_FLT_STACK_CHECK: | |
| 2096 case EXCEPTION_FLT_UNDERFLOW: | |
| 2097 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
| 2098 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
| 2099 // Restore FPCW and mask out FLT exceptions | |
| 2100 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
| 2101 // Mask out pending FLT exceptions | |
| 2102 ctx->FloatSave.StatusWord &= 0xffffff00; | |
| 2103 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2104 } | |
| 2105 } | |
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2106 |
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2107 if (prev_uef_handler != NULL) { |
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2108 // We didn't handle this exception so pass it to the previous |
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2109 // UnhandledExceptionFilter. |
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2110 return (prev_uef_handler)(exceptionInfo); |
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2111 } |
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2112 |
| 0 | 2113 return EXCEPTION_CONTINUE_SEARCH; |
| 2114 } | |
| 2115 #else //_WIN64 | |
| 2116 /* | |
| 2117 On Windows, the mxcsr control bits are non-volatile across calls | |
| 2118 See also CR 6192333 | |
| 2119 If EXCEPTION_FLT_* happened after some native method modified | |
| 2120 mxcsr - it is not a jvm fault. | |
| 2121 However should we decide to restore of mxcsr after a faulty | |
| 2122 native method we can uncomment following code | |
| 2123 jint MxCsr = INITIAL_MXCSR; | |
| 2124 // we can't use StubRoutines::addr_mxcsr_std() | |
| 2125 // because in Win64 mxcsr is not saved there | |
| 2126 if (MxCsr != ctx->MxCsr) { | |
| 2127 ctx->MxCsr = MxCsr; | |
| 2128 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2129 } | |
| 2130 | |
| 2131 */ | |
| 2132 #endif //_WIN64 | |
| 2133 | |
| 2134 | |
| 2135 // Fatal error reporting is single threaded so we can make this a | |
| 2136 // static and preallocated. If it's more than MAX_PATH silently ignore | |
| 2137 // it. | |
| 2138 static char saved_error_file[MAX_PATH] = {0}; | |
| 2139 | |
| 2140 void os::set_error_file(const char *logfile) { | |
| 2141 if (strlen(logfile) <= MAX_PATH) { | |
| 2142 strncpy(saved_error_file, logfile, MAX_PATH); | |
| 2143 } | |
| 2144 } | |
| 2145 | |
| 2146 static inline void report_error(Thread* t, DWORD exception_code, | |
| 2147 address addr, void* siginfo, void* context) { | |
| 2148 VMError err(t, exception_code, addr, siginfo, context); | |
| 2149 err.report_and_die(); | |
| 2150 | |
| 2151 // If UseOsErrorReporting, this will return here and save the error file | |
| 2152 // somewhere where we can find it in the minidump. | |
| 2153 } | |
| 2154 | |
| 2155 //----------------------------------------------------------------------------- | |
| 2156 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2157 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
| 2158 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2159 #ifdef _M_IA64 | |
| 2160 address pc = (address) exceptionInfo->ContextRecord->StIIP; | |
| 2161 #elif _M_AMD64 | |
| 2162 address pc = (address) exceptionInfo->ContextRecord->Rip; | |
| 2163 #else | |
| 2164 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2165 #endif | |
| 2166 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
| 2167 | |
| 2168 #ifndef _WIN64 | |
| 2169 // Execution protection violation - win32 running on AMD64 only | |
| 2170 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
| 2171 // This is safe to do because we have a new/unique ExceptionInformation | |
| 2172 // code for this condition. | |
| 2173 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2174 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2175 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
| 2176 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2177 | |
| 2178 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 2179 int page_size = os::vm_page_size(); | |
| 2180 | |
| 2181 // Make sure the pc and the faulting address are sane. | |
| 2182 // | |
| 2183 // If an instruction spans a page boundary, and the page containing | |
| 2184 // the beginning of the instruction is executable but the following | |
| 2185 // page is not, the pc and the faulting address might be slightly | |
| 2186 // different - we still want to unguard the 2nd page in this case. | |
| 2187 // | |
| 2188 // 15 bytes seems to be a (very) safe value for max instruction size. | |
| 2189 bool pc_is_near_addr = | |
| 2190 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
| 2191 bool instr_spans_page_boundary = | |
| 2192 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
| 2193 (intptr_t) page_size) > 0); | |
| 2194 | |
| 2195 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
| 2196 static volatile address last_addr = | |
| 2197 (address) os::non_memory_address_word(); | |
| 2198 | |
| 2199 // In conservative mode, don't unguard unless the address is in the VM | |
| 2200 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
| 2201 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
| 2202 | |
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2203 // Set memory to RWX and retry |
| 0 | 2204 address page_start = |
| 2205 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
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2206 bool res = os::protect_memory((char*) page_start, page_size, |
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2207 os::MEM_PROT_RWX); |
| 0 | 2208 |
| 2209 if (PrintMiscellaneous && Verbose) { | |
| 2210 char buf[256]; | |
| 2211 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
| 2212 "at " INTPTR_FORMAT | |
| 2213 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
| 2214 page_start, (res ? "success" : strerror(errno))); | |
| 2215 tty->print_raw_cr(buf); | |
| 2216 } | |
| 2217 | |
| 2218 // Set last_addr so if we fault again at the same address, we don't | |
| 2219 // end up in an endless loop. | |
| 2220 // | |
| 2221 // There are two potential complications here. Two threads trapping | |
| 2222 // at the same address at the same time could cause one of the | |
| 2223 // threads to think it already unguarded, and abort the VM. Likely | |
| 2224 // very rare. | |
| 2225 // | |
| 2226 // The other race involves two threads alternately trapping at | |
| 2227 // different addresses and failing to unguard the page, resulting in | |
| 2228 // an endless loop. This condition is probably even more unlikely | |
| 2229 // than the first. | |
| 2230 // | |
| 2231 // Although both cases could be avoided by using locks or thread | |
| 2232 // local last_addr, these solutions are unnecessary complication: | |
| 2233 // this handler is a best-effort safety net, not a complete solution. | |
| 2234 // It is disabled by default and should only be used as a workaround | |
| 2235 // in case we missed any no-execute-unsafe VM code. | |
| 2236 | |
| 2237 last_addr = addr; | |
| 2238 | |
| 2239 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2240 } | |
| 2241 } | |
| 2242 | |
| 2243 // Last unguard failed or not unguarding | |
| 2244 tty->print_raw_cr("Execution protection violation"); | |
| 2245 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
| 2246 exceptionInfo->ContextRecord); | |
| 2247 return EXCEPTION_CONTINUE_SEARCH; | |
| 2248 } | |
| 2249 } | |
| 2250 #endif // _WIN64 | |
| 2251 | |
| 2252 // Check to see if we caught the safepoint code in the | |
| 2253 // process of write protecting the memory serialization page. | |
| 2254 // It write enables the page immediately after protecting it | |
| 2255 // so just return. | |
| 2256 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 2257 JavaThread* thread = (JavaThread*) t; | |
| 2258 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2259 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2260 if ( os::is_memory_serialize_page(thread, addr) ) { | |
| 2261 // Block current thread until the memory serialize page permission restored. | |
| 2262 os::block_on_serialize_page_trap(); | |
| 2263 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2264 } | |
| 2265 } | |
| 2266 | |
| 2267 | |
| 2268 if (t != NULL && t->is_Java_thread()) { | |
| 2269 JavaThread* thread = (JavaThread*) t; | |
| 2270 bool in_java = thread->thread_state() == _thread_in_Java; | |
| 2271 | |
| 2272 // Handle potential stack overflows up front. | |
| 2273 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
| 2274 if (os::uses_stack_guard_pages()) { | |
| 2275 #ifdef _M_IA64 | |
| 2276 // | |
| 2277 // If it's a legal stack address continue, Windows will map it in. | |
| 2278 // | |
| 2279 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2280 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2281 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) | |
| 2282 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2283 | |
| 2284 // The register save area is the same size as the memory stack | |
| 2285 // and starts at the page just above the start of the memory stack. | |
| 2286 // If we get a fault in this area, we've run out of register | |
| 2287 // stack. If we are in java, try throwing a stack overflow exception. | |
| 2288 if (addr > thread->stack_base() && | |
| 2289 addr <= (thread->stack_base()+thread->stack_size()) ) { | |
| 2290 char buf[256]; | |
| 2291 jio_snprintf(buf, sizeof(buf), | |
| 2292 "Register stack overflow, addr:%p, stack_base:%p\n", | |
| 2293 addr, thread->stack_base() ); | |
| 2294 tty->print_raw_cr(buf); | |
| 2295 // If not in java code, return and hope for the best. | |
| 2296 return in_java ? Handle_Exception(exceptionInfo, | |
| 2297 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2298 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2299 } | |
| 2300 #endif | |
| 2301 if (thread->stack_yellow_zone_enabled()) { | |
| 2302 // Yellow zone violation. The o/s has unprotected the first yellow | |
| 2303 // zone page for us. Note: must call disable_stack_yellow_zone to | |
| 2304 // update the enabled status, even if the zone contains only one page. | |
| 2305 thread->disable_stack_yellow_zone(); | |
| 2306 // If not in java code, return and hope for the best. | |
| 2307 return in_java ? Handle_Exception(exceptionInfo, | |
| 2308 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2309 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2310 } else { | |
| 2311 // Fatal red zone violation. | |
| 2312 thread->disable_stack_red_zone(); | |
| 2313 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
| 2314 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2315 exceptionInfo->ContextRecord); | |
| 2316 return EXCEPTION_CONTINUE_SEARCH; | |
| 2317 } | |
| 2318 } else if (in_java) { | |
| 2319 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
| 2320 // a one-time-only guard page, which it has released to us. The next | |
| 2321 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
| 2322 return Handle_Exception(exceptionInfo, | |
| 2323 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2324 } else { | |
| 2325 // Can only return and hope for the best. Further stack growth will | |
| 2326 // result in an ACCESS_VIOLATION. | |
| 2327 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2328 } | |
| 2329 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2330 // Either stack overflow or null pointer exception. | |
| 2331 if (in_java) { | |
| 2332 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2333 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2334 address stack_end = thread->stack_base() - thread->stack_size(); | |
| 2335 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
| 2336 // Stack overflow. | |
| 2337 assert(!os::uses_stack_guard_pages(), | |
| 2338 "should be caught by red zone code above."); | |
| 2339 return Handle_Exception(exceptionInfo, | |
| 2340 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2341 } | |
| 2342 // | |
| 2343 // Check for safepoint polling and implicit null | |
| 2344 // We only expect null pointers in the stubs (vtable) | |
| 2345 // the rest are checked explicitly now. | |
| 2346 // | |
| 2347 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2348 if (cb != NULL) { | |
| 2349 if (os::is_poll_address(addr)) { | |
| 2350 address stub = SharedRuntime::get_poll_stub(pc); | |
| 2351 return Handle_Exception(exceptionInfo, stub); | |
| 2352 } | |
| 2353 } | |
| 2354 { | |
| 2355 #ifdef _WIN64 | |
| 2356 // | |
| 2357 // If it's a legal stack address map the entire region in | |
| 2358 // | |
| 2359 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2360 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2361 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
| 2362 addr = (address)((uintptr_t)addr & | |
| 2363 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
| 656 | 2364 os::commit_memory((char *)addr, thread->stack_base() - addr, |
| 2365 false ); | |
| 0 | 2366 return EXCEPTION_CONTINUE_EXECUTION; |
| 2367 } | |
| 2368 else | |
| 2369 #endif | |
| 2370 { | |
| 2371 // Null pointer exception. | |
| 2372 #ifdef _M_IA64 | |
| 2373 // We catch register stack overflows in compiled code by doing | |
| 2374 // an explicit compare and executing a st8(G0, G0) if the | |
| 2375 // BSP enters into our guard area. We test for the overflow | |
| 2376 // condition and fall into the normal null pointer exception | |
| 2377 // code if BSP hasn't overflowed. | |
| 2378 if ( in_java ) { | |
| 2379 if(thread->register_stack_overflow()) { | |
| 2380 assert((address)exceptionInfo->ContextRecord->IntS3 == | |
| 2381 thread->register_stack_limit(), | |
| 2382 "GR7 doesn't contain register_stack_limit"); | |
| 2383 // Disable the yellow zone which sets the state that | |
| 2384 // we've got a stack overflow problem. | |
| 2385 if (thread->stack_yellow_zone_enabled()) { | |
| 2386 thread->disable_stack_yellow_zone(); | |
| 2387 } | |
| 2388 // Give us some room to process the exception | |
| 2389 thread->disable_register_stack_guard(); | |
| 2390 // Update GR7 with the new limit so we can continue running | |
| 2391 // compiled code. | |
| 2392 exceptionInfo->ContextRecord->IntS3 = | |
| 2393 (ULONGLONG)thread->register_stack_limit(); | |
| 2394 return Handle_Exception(exceptionInfo, | |
| 2395 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2396 } else { | |
| 2397 // | |
| 2398 // Check for implicit null | |
| 2399 // We only expect null pointers in the stubs (vtable) | |
| 2400 // the rest are checked explicitly now. | |
| 2401 // | |
|
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2402 if (((uintptr_t)addr) < os::vm_page_size() ) { |
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2403 // an access to the first page of VM--assume it is a null pointer |
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2404 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2405 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2406 } |
| 2407 } | |
| 2408 } // in_java | |
| 2409 | |
| 2410 // IA64 doesn't use implicit null checking yet. So we shouldn't | |
| 2411 // get here. | |
| 2412 tty->print_raw_cr("Access violation, possible null pointer exception"); | |
| 2413 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2414 exceptionInfo->ContextRecord); | |
| 2415 return EXCEPTION_CONTINUE_SEARCH; | |
| 2416 #else /* !IA64 */ | |
| 2417 | |
| 2418 // Windows 98 reports faulting addresses incorrectly | |
| 2419 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
| 2420 !os::win32::is_nt()) { | |
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2421 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2422 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2423 } |
| 2424 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2425 exceptionInfo->ContextRecord); | |
| 2426 return EXCEPTION_CONTINUE_SEARCH; | |
| 2427 #endif | |
| 2428 } | |
| 2429 } | |
| 2430 } | |
| 2431 | |
| 2432 #ifdef _WIN64 | |
| 2433 // Special care for fast JNI field accessors. | |
| 2434 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
| 2435 // in and the heap gets shrunk before the field access. | |
| 2436 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2437 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2438 if (addr != (address)-1) { | |
| 2439 return Handle_Exception(exceptionInfo, addr); | |
| 2440 } | |
| 2441 } | |
| 2442 #endif | |
| 2443 | |
| 2444 #ifdef _WIN64 | |
| 2445 // Windows will sometimes generate an access violation | |
| 2446 // when we call malloc. Since we use VectoredExceptions | |
| 2447 // on 64 bit platforms, we see this exception. We must | |
| 2448 // pass this exception on so Windows can recover. | |
| 2449 // We check to see if the pc of the fault is in NTDLL.DLL | |
| 2450 // if so, we pass control on to Windows for handling. | |
| 2451 if (UseVectoredExceptions && _addr_in_ntdll(pc)) return EXCEPTION_CONTINUE_SEARCH; | |
| 2452 #endif | |
| 2453 | |
| 2454 // Stack overflow or null pointer exception in native code. | |
| 2455 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2456 exceptionInfo->ContextRecord); | |
| 2457 return EXCEPTION_CONTINUE_SEARCH; | |
| 2458 } | |
| 2459 | |
| 2460 if (in_java) { | |
| 2461 switch (exception_code) { | |
| 2462 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
| 2463 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
| 2464 | |
| 2465 case EXCEPTION_INT_OVERFLOW: | |
| 2466 return Handle_IDiv_Exception(exceptionInfo); | |
| 2467 | |
| 2468 } // switch | |
| 2469 } | |
| 2470 #ifndef _WIN64 | |
| 2471 if ((thread->thread_state() == _thread_in_Java) || | |
| 2472 (thread->thread_state() == _thread_in_native) ) | |
| 2473 { | |
| 2474 LONG result=Handle_FLT_Exception(exceptionInfo); | |
| 2475 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
| 2476 } | |
| 2477 #endif //_WIN64 | |
| 2478 } | |
| 2479 | |
| 2480 if (exception_code != EXCEPTION_BREAKPOINT) { | |
| 2481 #ifndef _WIN64 | |
| 2482 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2483 exceptionInfo->ContextRecord); | |
| 2484 #else | |
| 2485 // Itanium Windows uses a VectoredExceptionHandler | |
| 2486 // Which means that C++ programatic exception handlers (try/except) | |
| 2487 // will get here. Continue the search for the right except block if | |
| 2488 // the exception code is not a fatal code. | |
| 2489 switch ( exception_code ) { | |
| 2490 case EXCEPTION_ACCESS_VIOLATION: | |
| 2491 case EXCEPTION_STACK_OVERFLOW: | |
| 2492 case EXCEPTION_ILLEGAL_INSTRUCTION: | |
| 2493 case EXCEPTION_ILLEGAL_INSTRUCTION_2: | |
| 2494 case EXCEPTION_INT_OVERFLOW: | |
| 2495 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
| 2496 { report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2497 exceptionInfo->ContextRecord); | |
| 2498 } | |
| 2499 break; | |
| 2500 default: | |
| 2501 break; | |
| 2502 } | |
| 2503 #endif | |
| 2504 } | |
| 2505 return EXCEPTION_CONTINUE_SEARCH; | |
| 2506 } | |
| 2507 | |
| 2508 #ifndef _WIN64 | |
| 2509 // Special care for fast JNI accessors. | |
| 2510 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
| 2511 // the heap gets shrunk before the field access. | |
| 2512 // Need to install our own structured exception handler since native code may | |
| 2513 // install its own. | |
| 2514 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2515 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2516 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2517 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2518 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2519 if (addr != (address)-1) { | |
| 2520 return Handle_Exception(exceptionInfo, addr); | |
| 2521 } | |
| 2522 } | |
| 2523 return EXCEPTION_CONTINUE_SEARCH; | |
| 2524 } | |
| 2525 | |
| 2526 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
| 2527 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
| 2528 __try { \ | |
| 2529 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
| 2530 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
| 2531 } \ | |
| 2532 return 0; \ | |
| 2533 } | |
| 2534 | |
| 2535 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
| 2536 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
| 2537 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
| 2538 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
| 2539 DEFINE_FAST_GETFIELD(jint, int, Int) | |
| 2540 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
| 2541 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
| 2542 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
| 2543 | |
| 2544 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
| 2545 switch (type) { | |
| 2546 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
| 2547 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
| 2548 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
| 2549 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
| 2550 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
| 2551 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
| 2552 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
| 2553 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
| 2554 default: ShouldNotReachHere(); | |
| 2555 } | |
| 2556 return (address)-1; | |
| 2557 } | |
| 2558 #endif | |
| 2559 | |
| 2560 // Virtual Memory | |
| 2561 | |
| 2562 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
| 2563 int os::vm_allocation_granularity() { | |
| 2564 return os::win32::vm_allocation_granularity(); | |
| 2565 } | |
| 2566 | |
| 2567 // Windows large page support is available on Windows 2003. In order to use | |
| 2568 // large page memory, the administrator must first assign additional privilege | |
| 2569 // to the user: | |
| 2570 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
| 2571 // + select Local Policies -> User Rights Assignment | |
| 2572 // + double click "Lock pages in memory", add users and/or groups | |
| 2573 // + reboot | |
| 2574 // Note the above steps are needed for administrator as well, as administrators | |
| 2575 // by default do not have the privilege to lock pages in memory. | |
| 2576 // | |
| 2577 // Note about Windows 2003: although the API supports committing large page | |
| 2578 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
| 2579 // scenario, I found through experiment it only uses large page if the entire | |
| 2580 // memory region is reserved and committed in a single VirtualAlloc() call. | |
| 2581 // This makes Windows large page support more or less like Solaris ISM, in | |
| 2582 // that the entire heap must be committed upfront. This probably will change | |
| 2583 // in the future, if so the code below needs to be revisited. | |
| 2584 | |
| 2585 #ifndef MEM_LARGE_PAGES | |
| 2586 #define MEM_LARGE_PAGES 0x20000000 | |
| 2587 #endif | |
| 2588 | |
| 2589 // GetLargePageMinimum is only available on Windows 2003. The other functions | |
| 2590 // are available on NT but not on Windows 98/Me. We have to resolve them at | |
| 2591 // runtime. | |
| 2592 typedef SIZE_T (WINAPI *GetLargePageMinimum_func_type) (void); | |
| 2593 typedef BOOL (WINAPI *AdjustTokenPrivileges_func_type) | |
| 2594 (HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); | |
| 2595 typedef BOOL (WINAPI *OpenProcessToken_func_type) (HANDLE, DWORD, PHANDLE); | |
| 2596 typedef BOOL (WINAPI *LookupPrivilegeValue_func_type) (LPCTSTR, LPCTSTR, PLUID); | |
| 2597 | |
| 2598 static GetLargePageMinimum_func_type _GetLargePageMinimum; | |
| 2599 static AdjustTokenPrivileges_func_type _AdjustTokenPrivileges; | |
| 2600 static OpenProcessToken_func_type _OpenProcessToken; | |
| 2601 static LookupPrivilegeValue_func_type _LookupPrivilegeValue; | |
| 2602 | |
| 2603 static HINSTANCE _kernel32; | |
| 2604 static HINSTANCE _advapi32; | |
| 2605 static HANDLE _hProcess; | |
| 2606 static HANDLE _hToken; | |
| 2607 | |
| 2608 static size_t _large_page_size = 0; | |
| 2609 | |
| 2610 static bool resolve_functions_for_large_page_init() { | |
| 2611 _kernel32 = LoadLibrary("kernel32.dll"); | |
| 2612 if (_kernel32 == NULL) return false; | |
| 2613 | |
| 2614 _GetLargePageMinimum = CAST_TO_FN_PTR(GetLargePageMinimum_func_type, | |
| 2615 GetProcAddress(_kernel32, "GetLargePageMinimum")); | |
| 2616 if (_GetLargePageMinimum == NULL) return false; | |
| 2617 | |
| 2618 _advapi32 = LoadLibrary("advapi32.dll"); | |
| 2619 if (_advapi32 == NULL) return false; | |
| 2620 | |
| 2621 _AdjustTokenPrivileges = CAST_TO_FN_PTR(AdjustTokenPrivileges_func_type, | |
| 2622 GetProcAddress(_advapi32, "AdjustTokenPrivileges")); | |
| 2623 _OpenProcessToken = CAST_TO_FN_PTR(OpenProcessToken_func_type, | |
| 2624 GetProcAddress(_advapi32, "OpenProcessToken")); | |
| 2625 _LookupPrivilegeValue = CAST_TO_FN_PTR(LookupPrivilegeValue_func_type, | |
| 2626 GetProcAddress(_advapi32, "LookupPrivilegeValueA")); | |
| 2627 return _AdjustTokenPrivileges != NULL && | |
| 2628 _OpenProcessToken != NULL && | |
| 2629 _LookupPrivilegeValue != NULL; | |
| 2630 } | |
| 2631 | |
| 2632 static bool request_lock_memory_privilege() { | |
| 2633 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
| 2634 os::current_process_id()); | |
| 2635 | |
| 2636 LUID luid; | |
| 2637 if (_hProcess != NULL && | |
| 2638 _OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && | |
| 2639 _LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { | |
| 2640 | |
| 2641 TOKEN_PRIVILEGES tp; | |
| 2642 tp.PrivilegeCount = 1; | |
| 2643 tp.Privileges[0].Luid = luid; | |
| 2644 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
| 2645 | |
| 2646 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
| 2647 // privilege. Check GetLastError() too. See MSDN document. | |
| 2648 if (_AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && | |
| 2649 (GetLastError() == ERROR_SUCCESS)) { | |
| 2650 return true; | |
| 2651 } | |
| 2652 } | |
| 2653 | |
| 2654 return false; | |
| 2655 } | |
| 2656 | |
| 2657 static void cleanup_after_large_page_init() { | |
| 2658 _GetLargePageMinimum = NULL; | |
| 2659 _AdjustTokenPrivileges = NULL; | |
| 2660 _OpenProcessToken = NULL; | |
| 2661 _LookupPrivilegeValue = NULL; | |
| 2662 if (_kernel32) FreeLibrary(_kernel32); | |
| 2663 _kernel32 = NULL; | |
| 2664 if (_advapi32) FreeLibrary(_advapi32); | |
| 2665 _advapi32 = NULL; | |
| 2666 if (_hProcess) CloseHandle(_hProcess); | |
| 2667 _hProcess = NULL; | |
| 2668 if (_hToken) CloseHandle(_hToken); | |
| 2669 _hToken = NULL; | |
| 2670 } | |
| 2671 | |
| 2672 bool os::large_page_init() { | |
| 2673 if (!UseLargePages) return false; | |
| 2674 | |
| 2675 // print a warning if any large page related flag is specified on command line | |
| 2676 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
| 2677 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
| 2678 bool success = false; | |
| 2679 | |
| 2680 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
| 2681 if (resolve_functions_for_large_page_init()) { | |
| 2682 if (request_lock_memory_privilege()) { | |
| 2683 size_t s = _GetLargePageMinimum(); | |
| 2684 if (s) { | |
| 2685 #if defined(IA32) || defined(AMD64) | |
| 2686 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
| 2687 WARN("JVM cannot use large pages bigger than 4mb."); | |
| 2688 } else { | |
| 2689 #endif | |
| 2690 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
| 2691 _large_page_size = LargePageSizeInBytes; | |
| 2692 } else { | |
| 2693 _large_page_size = s; | |
| 2694 } | |
| 2695 success = true; | |
| 2696 #if defined(IA32) || defined(AMD64) | |
| 2697 } | |
| 2698 #endif | |
| 2699 } else { | |
| 2700 WARN("Large page is not supported by the processor."); | |
| 2701 } | |
| 2702 } else { | |
| 2703 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
| 2704 } | |
| 2705 } else { | |
| 2706 WARN("Large page is not supported by the operating system."); | |
| 2707 } | |
| 2708 #undef WARN | |
| 2709 | |
| 2710 const size_t default_page_size = (size_t) vm_page_size(); | |
| 2711 if (success && _large_page_size > default_page_size) { | |
| 2712 _page_sizes[0] = _large_page_size; | |
| 2713 _page_sizes[1] = default_page_size; | |
| 2714 _page_sizes[2] = 0; | |
| 2715 } | |
| 2716 | |
| 2717 cleanup_after_large_page_init(); | |
| 2718 return success; | |
| 2719 } | |
| 2720 | |
| 2721 // On win32, one cannot release just a part of reserved memory, it's an | |
| 2722 // all or nothing deal. When we split a reservation, we must break the | |
| 2723 // reservation into two reservations. | |
| 2724 void os::split_reserved_memory(char *base, size_t size, size_t split, | |
| 2725 bool realloc) { | |
| 2726 if (size > 0) { | |
| 2727 release_memory(base, size); | |
| 2728 if (realloc) { | |
| 2729 reserve_memory(split, base); | |
| 2730 } | |
| 2731 if (size != split) { | |
| 2732 reserve_memory(size - split, base + split); | |
| 2733 } | |
| 2734 } | |
| 2735 } | |
| 2736 | |
| 2737 char* os::reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { | |
| 2738 assert((size_t)addr % os::vm_allocation_granularity() == 0, | |
| 2739 "reserve alignment"); | |
| 2740 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
| 656 | 2741 char* res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); |
| 0 | 2742 assert(res == NULL || addr == NULL || addr == res, |
| 2743 "Unexpected address from reserve."); | |
| 2744 return res; | |
| 2745 } | |
| 2746 | |
| 2747 // Reserve memory at an arbitrary address, only if that area is | |
| 2748 // available (and not reserved for something else). | |
| 2749 char* os::attempt_reserve_memory_at(size_t bytes, char* requested_addr) { | |
| 2750 // Windows os::reserve_memory() fails of the requested address range is | |
| 2751 // not avilable. | |
| 2752 return reserve_memory(bytes, requested_addr); | |
| 2753 } | |
| 2754 | |
| 2755 size_t os::large_page_size() { | |
| 2756 return _large_page_size; | |
| 2757 } | |
| 2758 | |
| 2759 bool os::can_commit_large_page_memory() { | |
| 2760 // Windows only uses large page memory when the entire region is reserved | |
| 2761 // and committed in a single VirtualAlloc() call. This may change in the | |
| 2762 // future, but with Windows 2003 it's not possible to commit on demand. | |
| 2763 return false; | |
| 2764 } | |
| 2765 | |
|
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2766 bool os::can_execute_large_page_memory() { |
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2767 return true; |
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2768 } |
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2769 |
| 656 | 2770 char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) { |
|
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2771 |
| 717 | 2772 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
|
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2773 |
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2774 if (UseLargePagesIndividualAllocation) { |
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2775 if (TracePageSizes && Verbose) { |
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2776 tty->print_cr("Reserving large pages individually."); |
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2777 } |
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2778 char * p_buf; |
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2779 // first reserve enough address space in advance since we want to be |
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2780 // able to break a single contiguous virtual address range into multiple |
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2781 // large page commits but WS2003 does not allow reserving large page space |
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2782 // so we just use 4K pages for reserve, this gives us a legal contiguous |
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2783 // address space. then we will deallocate that reservation, and re alloc |
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2784 // using large pages |
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2785 const size_t size_of_reserve = bytes + _large_page_size; |
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2786 if (bytes > size_of_reserve) { |
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2787 // Overflowed. |
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2788 warning("Individually allocated large pages failed, " |
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2789 "use -XX:-UseLargePagesIndividualAllocation to turn off"); |
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2790 return NULL; |
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2791 } |
|
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2792 p_buf = (char *) VirtualAlloc(addr, |
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2793 size_of_reserve, // size of Reserve |
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2794 MEM_RESERVE, |
| 656 | 2795 PAGE_READWRITE); |
|
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2796 // If reservation failed, return NULL |
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2797 if (p_buf == NULL) return NULL; |
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2798 |
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2799 release_memory(p_buf, bytes + _large_page_size); |
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2800 // round up to page boundary. If the size_of_reserve did not |
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2801 // overflow and the reservation did not fail, this align up |
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2802 // should not overflow. |
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2803 p_buf = (char *) align_size_up((size_t)p_buf, _large_page_size); |
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2804 |
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2805 // now go through and allocate one page at a time until all bytes are |
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2806 // allocated |
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2807 size_t bytes_remaining = align_size_up(bytes, _large_page_size); |
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2808 // An overflow of align_size_up() would have been caught above |
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2809 // in the calculation of size_of_reserve. |
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2810 char * next_alloc_addr = p_buf; |
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2811 |
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2812 #ifdef ASSERT |
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2813 // Variable for the failure injection |
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2814 long ran_num = os::random(); |
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2815 size_t fail_after = ran_num % bytes; |
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2816 #endif |
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2817 |
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2818 while (bytes_remaining) { |
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2819 size_t bytes_to_rq = MIN2(bytes_remaining, _large_page_size); |
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2820 // Note allocate and commit |
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2821 char * p_new; |
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2822 |
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2823 #ifdef ASSERT |
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2824 bool inject_error = LargePagesIndividualAllocationInjectError && |
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2825 (bytes_remaining <= fail_after); |
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2826 #else |
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2827 const bool inject_error = false; |
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2828 #endif |
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2829 |
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2830 if (inject_error) { |
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2831 p_new = NULL; |
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2832 } else { |
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2833 p_new = (char *) VirtualAlloc(next_alloc_addr, |
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2834 bytes_to_rq, |
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2835 MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES, |
| 717 | 2836 prot); |
|
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2837 } |
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2838 |
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2839 if (p_new == NULL) { |
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2840 // Free any allocated pages |
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2841 if (next_alloc_addr > p_buf) { |
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2842 // Some memory was committed so release it. |
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2843 size_t bytes_to_release = bytes - bytes_remaining; |
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2844 release_memory(p_buf, bytes_to_release); |
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2845 } |
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2846 #ifdef ASSERT |
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2847 if (UseLargePagesIndividualAllocation && |
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2848 LargePagesIndividualAllocationInjectError) { |
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2849 if (TracePageSizes && Verbose) { |
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2850 tty->print_cr("Reserving large pages individually failed."); |
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2851 } |
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2852 } |
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2853 #endif |
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2854 return NULL; |
|
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2855 } |
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2856 bytes_remaining -= bytes_to_rq; |
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2857 next_alloc_addr += bytes_to_rq; |
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2858 } |
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2859 |
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2860 return p_buf; |
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2861 |
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2862 } else { |
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2863 // normal policy just allocate it all at once |
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2864 DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 717 | 2865 char * res = (char *)VirtualAlloc(NULL, bytes, flag, prot); |
|
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2866 return res; |
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2867 } |
| 0 | 2868 } |
| 2869 | |
| 2870 bool os::release_memory_special(char* base, size_t bytes) { | |
| 2871 return release_memory(base, bytes); | |
| 2872 } | |
| 2873 | |
| 2874 void os::print_statistics() { | |
| 2875 } | |
| 2876 | |
| 656 | 2877 bool os::commit_memory(char* addr, size_t bytes, bool exec) { |
| 0 | 2878 if (bytes == 0) { |
| 2879 // Don't bother the OS with noops. | |
| 2880 return true; | |
| 2881 } | |
| 2882 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
| 2883 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
| 2884 // Don't attempt to print anything if the OS call fails. We're | |
| 2885 // probably low on resources, so the print itself may cause crashes. | |
| 656 | 2886 bool result = VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) != 0; |
| 2887 if (result != NULL && exec) { | |
| 2888 DWORD oldprot; | |
| 2889 // Windows doc says to use VirtualProtect to get execute permissions | |
| 2890 return VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot) != 0; | |
| 2891 } else { | |
| 2892 return result; | |
| 2893 } | |
| 0 | 2894 } |
| 2895 | |
| 656 | 2896 bool os::commit_memory(char* addr, size_t size, size_t alignment_hint, |
| 2897 bool exec) { | |
| 2898 return commit_memory(addr, size, exec); | |
| 0 | 2899 } |
| 2900 | |
| 2901 bool os::uncommit_memory(char* addr, size_t bytes) { | |
| 2902 if (bytes == 0) { | |
| 2903 // Don't bother the OS with noops. | |
| 2904 return true; | |
| 2905 } | |
| 2906 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
| 2907 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
| 2908 return VirtualFree(addr, bytes, MEM_DECOMMIT) != 0; | |
| 2909 } | |
| 2910 | |
| 2911 bool os::release_memory(char* addr, size_t bytes) { | |
| 2912 return VirtualFree(addr, 0, MEM_RELEASE) != 0; | |
| 2913 } | |
| 2914 | |
|
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2915 bool os::create_stack_guard_pages(char* addr, size_t size) { |
|
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2916 return os::commit_memory(addr, size); |
|
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2917 } |
|
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2918 |
|
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2919 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
|
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2920 return os::uncommit_memory(addr, size); |
|
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2921 } |
|
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2922 |
|
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2923 // Set protections specified |
|
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2924 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
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2925 bool is_committed) { |
|
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2926 unsigned int p = 0; |
|
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2927 switch (prot) { |
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2928 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
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2929 case MEM_PROT_READ: p = PAGE_READONLY; break; |
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2930 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
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2931 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
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2932 default: |
|
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2933 ShouldNotReachHere(); |
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2934 } |
|
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2935 |
| 0 | 2936 DWORD old_status; |
|
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2937 |
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2938 // Strange enough, but on Win32 one can change protection only for committed |
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2939 // memory, not a big deal anyway, as bytes less or equal than 64K |
| 656 | 2940 if (!is_committed && !commit_memory(addr, bytes, prot == MEM_PROT_RWX)) { |
|
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2941 fatal("cannot commit protection page"); |
|
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2942 } |
|
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2943 // One cannot use os::guard_memory() here, as on Win32 guard page |
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2944 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
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2945 // |
|
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2946 // Pages in the region become guard pages. Any attempt to access a guard page |
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2947 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
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2948 // the guard page status. Guard pages thus act as a one-time access alarm. |
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2949 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
| 0 | 2950 } |
| 2951 | |
| 2952 bool os::guard_memory(char* addr, size_t bytes) { | |
| 2953 DWORD old_status; | |
|
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|
2954 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
| 0 | 2955 } |
| 2956 | |
| 2957 bool os::unguard_memory(char* addr, size_t bytes) { | |
| 2958 DWORD old_status; | |
|
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2959 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
| 0 | 2960 } |
| 2961 | |
| 2962 void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
| 2963 void os::free_memory(char *addr, size_t bytes) { } | |
| 2964 void os::numa_make_global(char *addr, size_t bytes) { } | |
| 141 | 2965 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
| 0 | 2966 bool os::numa_topology_changed() { return false; } |
| 2967 size_t os::numa_get_groups_num() { return 1; } | |
| 2968 int os::numa_get_group_id() { return 0; } | |
| 2969 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
| 2970 if (size > 0) { | |
| 2971 ids[0] = 0; | |
| 2972 return 1; | |
| 2973 } | |
| 2974 return 0; | |
| 2975 } | |
| 2976 | |
| 2977 bool os::get_page_info(char *start, page_info* info) { | |
| 2978 return false; | |
| 2979 } | |
| 2980 | |
| 2981 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 2982 return end; | |
| 2983 } | |
| 2984 | |
| 2985 char* os::non_memory_address_word() { | |
| 2986 // Must never look like an address returned by reserve_memory, | |
| 2987 // even in its subfields (as defined by the CPU immediate fields, | |
| 2988 // if the CPU splits constants across multiple instructions). | |
| 2989 return (char*)-1; | |
| 2990 } | |
| 2991 | |
| 2992 #define MAX_ERROR_COUNT 100 | |
| 2993 #define SYS_THREAD_ERROR 0xffffffffUL | |
| 2994 | |
| 2995 void os::pd_start_thread(Thread* thread) { | |
| 2996 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
| 2997 // Returns previous suspend state: | |
| 2998 // 0: Thread was not suspended | |
| 2999 // 1: Thread is running now | |
| 3000 // >1: Thread is still suspended. | |
| 3001 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
| 3002 } | |
| 3003 | |
| 3004 class HighResolutionInterval { | |
| 3005 // The default timer resolution seems to be 10 milliseconds. | |
| 3006 // (Where is this written down?) | |
| 3007 // If someone wants to sleep for only a fraction of the default, | |
| 3008 // then we set the timer resolution down to 1 millisecond for | |
| 3009 // the duration of their interval. | |
| 3010 // We carefully set the resolution back, since otherwise we | |
| 3011 // seem to incur an overhead (3%?) that we don't need. | |
| 3012 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
| 3013 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
| 3014 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
| 3015 // timeBeginPeriod() if the relative error exceeded some threshold. | |
| 3016 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
| 3017 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
| 3018 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
| 3019 // resolution timers running. | |
| 3020 private: | |
| 3021 jlong resolution; | |
| 3022 public: | |
| 3023 HighResolutionInterval(jlong ms) { | |
| 3024 resolution = ms % 10L; | |
| 3025 if (resolution != 0) { | |
| 3026 MMRESULT result = timeBeginPeriod(1L); | |
| 3027 } | |
| 3028 } | |
| 3029 ~HighResolutionInterval() { | |
| 3030 if (resolution != 0) { | |
| 3031 MMRESULT result = timeEndPeriod(1L); | |
| 3032 } | |
| 3033 resolution = 0L; | |
| 3034 } | |
| 3035 }; | |
| 3036 | |
| 3037 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
| 3038 jlong limit = (jlong) MAXDWORD; | |
| 3039 | |
| 3040 while(ms > limit) { | |
| 3041 int res; | |
| 3042 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
| 3043 return res; | |
| 3044 ms -= limit; | |
| 3045 } | |
| 3046 | |
| 3047 assert(thread == Thread::current(), "thread consistency check"); | |
| 3048 OSThread* osthread = thread->osthread(); | |
| 3049 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
| 3050 int result; | |
| 3051 if (interruptable) { | |
| 3052 assert(thread->is_Java_thread(), "must be java thread"); | |
| 3053 JavaThread *jt = (JavaThread *) thread; | |
| 3054 ThreadBlockInVM tbivm(jt); | |
| 3055 | |
| 3056 jt->set_suspend_equivalent(); | |
| 3057 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3058 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3059 | |
| 3060 HANDLE events[1]; | |
| 3061 events[0] = osthread->interrupt_event(); | |
| 3062 HighResolutionInterval *phri=NULL; | |
| 3063 if(!ForceTimeHighResolution) | |
| 3064 phri = new HighResolutionInterval( ms ); | |
| 3065 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
| 3066 result = OS_TIMEOUT; | |
| 3067 } else { | |
| 3068 ResetEvent(osthread->interrupt_event()); | |
| 3069 osthread->set_interrupted(false); | |
| 3070 result = OS_INTRPT; | |
| 3071 } | |
| 3072 delete phri; //if it is NULL, harmless | |
| 3073 | |
| 3074 // were we externally suspended while we were waiting? | |
| 3075 jt->check_and_wait_while_suspended(); | |
| 3076 } else { | |
| 3077 assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3078 Sleep((long) ms); | |
| 3079 result = OS_TIMEOUT; | |
| 3080 } | |
| 3081 return result; | |
| 3082 } | |
| 3083 | |
| 3084 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3085 void os::infinite_sleep() { | |
| 3086 while (true) { // sleep forever ... | |
| 3087 Sleep(100000); // ... 100 seconds at a time | |
| 3088 } | |
| 3089 } | |
| 3090 | |
| 3091 typedef BOOL (WINAPI * STTSignature)(void) ; | |
| 3092 | |
| 3093 os::YieldResult os::NakedYield() { | |
| 3094 // Use either SwitchToThread() or Sleep(0) | |
| 3095 // Consider passing back the return value from SwitchToThread(). | |
| 3096 // We use GetProcAddress() as ancient Win9X versions of windows doen't support SwitchToThread. | |
| 3097 // In that case we revert to Sleep(0). | |
| 3098 static volatile STTSignature stt = (STTSignature) 1 ; | |
| 3099 | |
| 3100 if (stt == ((STTSignature) 1)) { | |
| 3101 stt = (STTSignature) ::GetProcAddress (LoadLibrary ("Kernel32.dll"), "SwitchToThread") ; | |
| 3102 // It's OK if threads race during initialization as the operation above is idempotent. | |
| 3103 } | |
| 3104 if (stt != NULL) { | |
| 3105 return (*stt)() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; | |
| 3106 } else { | |
| 3107 Sleep (0) ; | |
| 3108 } | |
| 3109 return os::YIELD_UNKNOWN ; | |
| 3110 } | |
| 3111 | |
| 3112 void os::yield() { os::NakedYield(); } | |
| 3113 | |
| 3114 void os::yield_all(int attempts) { | |
| 3115 // Yields to all threads, including threads with lower priorities | |
| 3116 Sleep(1); | |
| 3117 } | |
| 3118 | |
| 3119 // Win32 only gives you access to seven real priorities at a time, | |
| 3120 // so we compress Java's ten down to seven. It would be better | |
| 3121 // if we dynamically adjusted relative priorities. | |
| 3122 | |
| 3123 int os::java_to_os_priority[MaxPriority + 1] = { | |
| 3124 THREAD_PRIORITY_IDLE, // 0 Entry should never be used | |
| 3125 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3126 THREAD_PRIORITY_LOWEST, // 2 | |
| 3127 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3128 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3129 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3130 THREAD_PRIORITY_NORMAL, // 6 | |
| 3131 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3132 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
| 3133 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
| 3134 THREAD_PRIORITY_HIGHEST // 10 MaxPriority | |
| 3135 }; | |
| 3136 | |
| 3137 int prio_policy1[MaxPriority + 1] = { | |
| 3138 THREAD_PRIORITY_IDLE, // 0 Entry should never be used | |
| 3139 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3140 THREAD_PRIORITY_LOWEST, // 2 | |
| 3141 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3142 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3143 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3144 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
| 3145 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3146 THREAD_PRIORITY_HIGHEST, // 8 | |
| 3147 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
| 3148 THREAD_PRIORITY_TIME_CRITICAL // 10 MaxPriority | |
| 3149 }; | |
| 3150 | |
| 3151 static int prio_init() { | |
| 3152 // If ThreadPriorityPolicy is 1, switch tables | |
| 3153 if (ThreadPriorityPolicy == 1) { | |
| 3154 int i; | |
| 3155 for (i = 0; i < MaxPriority + 1; i++) { | |
| 3156 os::java_to_os_priority[i] = prio_policy1[i]; | |
| 3157 } | |
| 3158 } | |
| 3159 return 0; | |
| 3160 } | |
| 3161 | |
| 3162 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
| 3163 if (!UseThreadPriorities) return OS_OK; | |
| 3164 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
| 3165 return ret ? OS_OK : OS_ERR; | |
| 3166 } | |
| 3167 | |
| 3168 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
| 3169 if ( !UseThreadPriorities ) { | |
| 3170 *priority_ptr = java_to_os_priority[NormPriority]; | |
| 3171 return OS_OK; | |
| 3172 } | |
| 3173 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
| 3174 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
| 3175 assert(false, "GetThreadPriority failed"); | |
| 3176 return OS_ERR; | |
| 3177 } | |
| 3178 *priority_ptr = os_prio; | |
| 3179 return OS_OK; | |
| 3180 } | |
| 3181 | |
| 3182 | |
| 3183 // Hint to the underlying OS that a task switch would not be good. | |
| 3184 // Void return because it's a hint and can fail. | |
| 3185 void os::hint_no_preempt() {} | |
| 3186 | |
| 3187 void os::interrupt(Thread* thread) { | |
| 3188 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3189 "possibility of dangling Thread pointer"); | |
| 3190 | |
| 3191 OSThread* osthread = thread->osthread(); | |
| 3192 osthread->set_interrupted(true); | |
| 3193 // More than one thread can get here with the same value of osthread, | |
| 3194 // resulting in multiple notifications. We do, however, want the store | |
| 3195 // to interrupted() to be visible to other threads before we post | |
| 3196 // the interrupt event. | |
| 3197 OrderAccess::release(); | |
| 3198 SetEvent(osthread->interrupt_event()); | |
| 3199 // For JSR166: unpark after setting status | |
| 3200 if (thread->is_Java_thread()) | |
| 3201 ((JavaThread*)thread)->parker()->unpark(); | |
| 3202 | |
| 3203 ParkEvent * ev = thread->_ParkEvent ; | |
| 3204 if (ev != NULL) ev->unpark() ; | |
| 3205 | |
| 3206 } | |
| 3207 | |
| 3208 | |
| 3209 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 3210 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3211 "possibility of dangling Thread pointer"); | |
| 3212 | |
| 3213 OSThread* osthread = thread->osthread(); | |
| 3214 bool interrupted; | |
| 3215 interrupted = osthread->interrupted(); | |
| 3216 if (clear_interrupted == true) { | |
| 3217 osthread->set_interrupted(false); | |
| 3218 ResetEvent(osthread->interrupt_event()); | |
| 3219 } // Otherwise leave the interrupted state alone | |
| 3220 | |
| 3221 return interrupted; | |
| 3222 } | |
| 3223 | |
| 3224 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
| 3225 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 3226 CONTEXT context; | |
| 3227 context.ContextFlags = CONTEXT_CONTROL; | |
| 3228 HANDLE handle = thread->osthread()->thread_handle(); | |
| 3229 #ifdef _M_IA64 | |
| 3230 assert(0, "Fix get_thread_pc"); | |
| 3231 return ExtendedPC(NULL); | |
| 3232 #else | |
| 3233 if (GetThreadContext(handle, &context)) { | |
| 3234 #ifdef _M_AMD64 | |
| 3235 return ExtendedPC((address) context.Rip); | |
| 3236 #else | |
| 3237 return ExtendedPC((address) context.Eip); | |
| 3238 #endif | |
| 3239 } else { | |
| 3240 return ExtendedPC(NULL); | |
| 3241 } | |
| 3242 #endif | |
| 3243 } | |
| 3244 | |
| 3245 // GetCurrentThreadId() returns DWORD | |
| 3246 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
| 3247 | |
| 3248 static int _initial_pid = 0; | |
| 3249 | |
| 3250 int os::current_process_id() | |
| 3251 { | |
| 3252 return (_initial_pid ? _initial_pid : _getpid()); | |
| 3253 } | |
| 3254 | |
| 3255 int os::win32::_vm_page_size = 0; | |
| 3256 int os::win32::_vm_allocation_granularity = 0; | |
| 3257 int os::win32::_processor_type = 0; | |
| 3258 // Processor level is not available on non-NT systems, use vm_version instead | |
| 3259 int os::win32::_processor_level = 0; | |
| 3260 julong os::win32::_physical_memory = 0; | |
| 3261 size_t os::win32::_default_stack_size = 0; | |
| 3262 | |
| 3263 intx os::win32::_os_thread_limit = 0; | |
| 3264 volatile intx os::win32::_os_thread_count = 0; | |
| 3265 | |
| 3266 bool os::win32::_is_nt = false; | |
|
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3267 bool os::win32::_is_windows_2003 = false; |
| 0 | 3268 |
| 3269 | |
| 3270 void os::win32::initialize_system_info() { | |
| 3271 SYSTEM_INFO si; | |
| 3272 GetSystemInfo(&si); | |
| 3273 _vm_page_size = si.dwPageSize; | |
| 3274 _vm_allocation_granularity = si.dwAllocationGranularity; | |
| 3275 _processor_type = si.dwProcessorType; | |
| 3276 _processor_level = si.wProcessorLevel; | |
|
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3277 set_processor_count(si.dwNumberOfProcessors); |
| 0 | 3278 |
|
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3279 MEMORYSTATUSEX ms; |
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3280 ms.dwLength = sizeof(ms); |
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3281 |
| 0 | 3282 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
| 3283 // dwMemoryLoad (% of memory in use) | |
|
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3284 GlobalMemoryStatusEx(&ms); |
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3285 _physical_memory = ms.ullTotalPhys; |
| 0 | 3286 |
| 3287 OSVERSIONINFO oi; | |
| 3288 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); | |
| 3289 GetVersionEx(&oi); | |
| 3290 switch(oi.dwPlatformId) { | |
| 3291 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
|
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3292 case VER_PLATFORM_WIN32_NT: |
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3293 _is_nt = true; |
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3294 { |
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3295 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
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3296 if (os_vers == 5002) { |
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3297 _is_windows_2003 = true; |
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3298 } |
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3299 } |
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3300 break; |
| 0 | 3301 default: fatal("Unknown platform"); |
| 3302 } | |
| 3303 | |
| 3304 _default_stack_size = os::current_stack_size(); | |
| 3305 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
| 3306 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
| 3307 "stack size not a multiple of page size"); | |
| 3308 | |
| 3309 initialize_performance_counter(); | |
| 3310 | |
| 3311 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
| 3312 // known to deadlock the system, if the VM issues to thread operations with | |
| 3313 // a too high frequency, e.g., such as changing the priorities. | |
| 3314 // The 6000 seems to work well - no deadlocks has been notices on the test | |
| 3315 // programs that we have seen experience this problem. | |
| 3316 if (!os::win32::is_nt()) { | |
| 3317 StarvationMonitorInterval = 6000; | |
| 3318 } | |
| 3319 } | |
| 3320 | |
| 3321 | |
| 3322 void os::win32::setmode_streams() { | |
| 3323 _setmode(_fileno(stdin), _O_BINARY); | |
| 3324 _setmode(_fileno(stdout), _O_BINARY); | |
| 3325 _setmode(_fileno(stderr), _O_BINARY); | |
| 3326 } | |
| 3327 | |
| 3328 | |
| 3329 int os::message_box(const char* title, const char* message) { | |
| 3330 int result = MessageBox(NULL, message, title, | |
| 3331 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
| 3332 return result == IDYES; | |
| 3333 } | |
| 3334 | |
| 3335 int os::allocate_thread_local_storage() { | |
| 3336 return TlsAlloc(); | |
| 3337 } | |
| 3338 | |
| 3339 | |
| 3340 void os::free_thread_local_storage(int index) { | |
| 3341 TlsFree(index); | |
| 3342 } | |
| 3343 | |
| 3344 | |
| 3345 void os::thread_local_storage_at_put(int index, void* value) { | |
| 3346 TlsSetValue(index, value); | |
| 3347 assert(thread_local_storage_at(index) == value, "Just checking"); | |
| 3348 } | |
| 3349 | |
| 3350 | |
| 3351 void* os::thread_local_storage_at(int index) { | |
| 3352 return TlsGetValue(index); | |
| 3353 } | |
| 3354 | |
| 3355 | |
| 3356 #ifndef PRODUCT | |
| 3357 #ifndef _WIN64 | |
| 3358 // Helpers to check whether NX protection is enabled | |
| 3359 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
| 3360 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 3361 pex->ExceptionRecord->NumberParameters > 0 && | |
| 3362 pex->ExceptionRecord->ExceptionInformation[0] == | |
| 3363 EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 3364 return EXCEPTION_EXECUTE_HANDLER; | |
| 3365 } | |
| 3366 return EXCEPTION_CONTINUE_SEARCH; | |
| 3367 } | |
| 3368 | |
| 3369 void nx_check_protection() { | |
| 3370 // If NX is enabled we'll get an exception calling into code on the stack | |
| 3371 char code[] = { (char)0xC3 }; // ret | |
| 3372 void *code_ptr = (void *)code; | |
| 3373 __try { | |
| 3374 __asm call code_ptr | |
| 3375 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
| 3376 tty->print_raw_cr("NX protection detected."); | |
| 3377 } | |
| 3378 } | |
| 3379 #endif // _WIN64 | |
| 3380 #endif // PRODUCT | |
| 3381 | |
| 3382 // this is called _before_ the global arguments have been parsed | |
| 3383 void os::init(void) { | |
| 3384 _initial_pid = _getpid(); | |
| 3385 | |
| 3386 init_random(1234567); | |
| 3387 | |
| 3388 win32::initialize_system_info(); | |
| 3389 win32::setmode_streams(); | |
| 3390 init_page_sizes((size_t) win32::vm_page_size()); | |
| 3391 | |
| 3392 // For better scalability on MP systems (must be called after initialize_system_info) | |
| 3393 #ifndef PRODUCT | |
| 3394 if (is_MP()) { | |
| 3395 NoYieldsInMicrolock = true; | |
| 3396 } | |
| 3397 #endif | |
|
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3398 // This may be overridden later when argument processing is done. |
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3399 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
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3400 os::win32::is_windows_2003()); |
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3401 |
| 0 | 3402 // Initialize main_process and main_thread |
| 3403 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
|
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3404 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
| 0 | 3405 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
| 3406 fatal("DuplicateHandle failed\n"); | |
| 3407 } | |
| 3408 main_thread_id = (int) GetCurrentThreadId(); | |
| 3409 } | |
| 3410 | |
| 3411 // To install functions for atexit processing | |
| 3412 extern "C" { | |
| 3413 static void perfMemory_exit_helper() { | |
| 3414 perfMemory_exit(); | |
| 3415 } | |
| 3416 } | |
| 3417 | |
| 3418 // this is called _after_ the global arguments have been parsed | |
| 3419 jint os::init_2(void) { | |
| 3420 // Allocate a single page and mark it as readable for safepoint polling | |
| 3421 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
| 3422 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
| 3423 | |
| 3424 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
| 3425 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
| 3426 | |
| 3427 os::set_polling_page( polling_page ); | |
| 3428 | |
| 3429 #ifndef PRODUCT | |
| 3430 if( Verbose && PrintMiscellaneous ) | |
| 3431 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 3432 #endif | |
| 3433 | |
| 3434 if (!UseMembar) { | |
| 656 | 3435 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
| 0 | 3436 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
| 3437 | |
| 656 | 3438 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
| 0 | 3439 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
| 3440 | |
| 3441 os::set_memory_serialize_page( mem_serialize_page ); | |
| 3442 | |
| 3443 #ifndef PRODUCT | |
| 3444 if(Verbose && PrintMiscellaneous) | |
| 3445 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 3446 #endif | |
| 3447 } | |
| 3448 | |
| 3449 FLAG_SET_DEFAULT(UseLargePages, os::large_page_init()); | |
| 3450 | |
| 3451 // Setup Windows Exceptions | |
| 3452 | |
| 3453 // On Itanium systems, Structured Exception Handling does not | |
| 3454 // work since stack frames must be walkable by the OS. Since | |
| 3455 // much of our code is dynamically generated, and we do not have | |
| 3456 // proper unwind .xdata sections, the system simply exits | |
| 3457 // rather than delivering the exception. To work around | |
| 3458 // this we use VectorExceptions instead. | |
| 3459 #ifdef _WIN64 | |
| 3460 if (UseVectoredExceptions) { | |
| 3461 topLevelVectoredExceptionHandler = AddVectoredExceptionHandler( 1, topLevelExceptionFilter); | |
| 3462 } | |
| 3463 #endif | |
| 3464 | |
| 3465 // for debugging float code generation bugs | |
| 3466 if (ForceFloatExceptions) { | |
| 3467 #ifndef _WIN64 | |
| 3468 static long fp_control_word = 0; | |
| 3469 __asm { fstcw fp_control_word } | |
| 3470 // see Intel PPro Manual, Vol. 2, p 7-16 | |
| 3471 const long precision = 0x20; | |
| 3472 const long underflow = 0x10; | |
| 3473 const long overflow = 0x08; | |
| 3474 const long zero_div = 0x04; | |
| 3475 const long denorm = 0x02; | |
| 3476 const long invalid = 0x01; | |
| 3477 fp_control_word |= invalid; | |
| 3478 __asm { fldcw fp_control_word } | |
| 3479 #endif | |
| 3480 } | |
| 3481 | |
| 3482 // If stack_commit_size is 0, windows will reserve the default size, | |
| 3483 // but only commit a small portion of it. | |
| 3484 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
| 3485 size_t default_reserve_size = os::win32::default_stack_size(); | |
| 3486 size_t actual_reserve_size = stack_commit_size; | |
| 3487 if (stack_commit_size < default_reserve_size) { | |
| 3488 // If stack_commit_size == 0, we want this too | |
| 3489 actual_reserve_size = default_reserve_size; | |
| 3490 } | |
| 3491 | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3492 // 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
|
3493 // the java system classes, including StackOverflowError - depends on page |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3494 // 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
|
3495 // 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
|
3496 // class initialization depending on 32 or 64 bit VM. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3497 size_t min_stack_allowed = |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3498 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3499 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3500 if (actual_reserve_size < min_stack_allowed) { |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3501 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
|
3502 "Specify at least %dk", |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3503 min_stack_allowed / K); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3504 return JNI_ERR; |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3505 } |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3506 |
| 0 | 3507 JavaThread::set_stack_size_at_create(stack_commit_size); |
| 3508 | |
| 3509 // Calculate theoretical max. size of Threads to guard gainst artifical | |
| 3510 // out-of-memory situations, where all available address-space has been | |
| 3511 // reserved by thread stacks. | |
| 3512 assert(actual_reserve_size != 0, "Must have a stack"); | |
| 3513 | |
| 3514 // Calculate the thread limit when we should start doing Virtual Memory | |
| 3515 // banging. Currently when the threads will have used all but 200Mb of space. | |
| 3516 // | |
| 3517 // TODO: consider performing a similar calculation for commit size instead | |
| 3518 // as reserve size, since on a 64-bit platform we'll run into that more | |
| 3519 // often than running out of virtual memory space. We can use the | |
| 3520 // 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
|
3521 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
| 0 | 3522 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
| 3523 | |
| 3524 // at exit methods are called in the reverse order of their registration. | |
| 3525 // there is no limit to the number of functions registered. atexit does | |
| 3526 // not set errno. | |
| 3527 | |
| 3528 if (PerfAllowAtExitRegistration) { | |
| 3529 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 3530 // atexit functions can be delayed until process exit time, which | |
| 3531 // can be problematic for embedded VM situations. Embedded VMs should | |
| 3532 // call DestroyJavaVM() to assure that VM resources are released. | |
| 3533 | |
| 3534 // note: perfMemory_exit_helper atexit function may be removed in | |
| 3535 // the future if the appropriate cleanup code can be added to the | |
| 3536 // VM_Exit VMOperation's doit method. | |
| 3537 if (atexit(perfMemory_exit_helper) != 0) { | |
| 3538 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
| 3539 } | |
| 3540 } | |
| 3541 | |
| 3542 // initialize PSAPI or ToolHelp for fatal error handler | |
| 3543 if (win32::is_nt()) _init_psapi(); | |
| 3544 else _init_toolhelp(); | |
| 3545 | |
| 3546 #ifndef _WIN64 | |
| 3547 // Print something if NX is enabled (win32 on AMD64) | |
| 3548 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
| 3549 #endif | |
| 3550 | |
| 3551 // initialize thread priority policy | |
| 3552 prio_init(); | |
| 3553 | |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3554 if (UseNUMA && !ForceNUMA) { |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3555 UseNUMA = false; // Currently unsupported. |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3556 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3557 |
| 0 | 3558 return JNI_OK; |
| 3559 } | |
| 3560 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3561 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3562 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3563 } |
| 0 | 3564 |
| 3565 // Mark the polling page as unreadable | |
| 3566 void os::make_polling_page_unreadable(void) { | |
| 3567 DWORD old_status; | |
| 3568 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
| 3569 fatal("Could not disable polling page"); | |
| 3570 }; | |
| 3571 | |
| 3572 // Mark the polling page as readable | |
| 3573 void os::make_polling_page_readable(void) { | |
| 3574 DWORD old_status; | |
| 3575 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
| 3576 fatal("Could not enable polling page"); | |
| 3577 }; | |
| 3578 | |
| 3579 | |
| 3580 int os::stat(const char *path, struct stat *sbuf) { | |
| 3581 char pathbuf[MAX_PATH]; | |
| 3582 if (strlen(path) > MAX_PATH - 1) { | |
| 3583 errno = ENAMETOOLONG; | |
| 3584 return -1; | |
| 3585 } | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3586 os::native_path(strcpy(pathbuf, path)); |
| 0 | 3587 int ret = ::stat(pathbuf, sbuf); |
| 3588 if (sbuf != NULL && UseUTCFileTimestamp) { | |
| 3589 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
| 3590 // the system timezone and so can return different values for the | |
| 3591 // same file if/when daylight savings time changes. This adjustment | |
| 3592 // makes sure the same timestamp is returned regardless of the TZ. | |
| 3593 // | |
| 3594 // See: | |
| 3595 // http://msdn.microsoft.com/library/ | |
| 3596 // default.asp?url=/library/en-us/sysinfo/base/ | |
| 3597 // time_zone_information_str.asp | |
| 3598 // and | |
| 3599 // http://msdn.microsoft.com/library/default.asp?url= | |
| 3600 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
| 3601 // | |
| 3602 // NOTE: there is a insidious bug here: If the timezone is changed | |
| 3603 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
| 3604 // the adjustment we do here will be wrong and we'll return the wrong | |
| 3605 // value (which will likely end up creating an invalid class data | |
| 3606 // archive). Absent a better API for this, or some time zone locking | |
| 3607 // mechanism, we'll have to live with this risk. | |
| 3608 TIME_ZONE_INFORMATION tz; | |
| 3609 DWORD tzid = GetTimeZoneInformation(&tz); | |
| 3610 int daylightBias = | |
| 3611 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
| 3612 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
| 3613 } | |
| 3614 return ret; | |
| 3615 } | |
| 3616 | |
| 3617 | |
| 3618 #define FT2INT64(ft) \ | |
| 3619 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
| 3620 | |
| 3621 | |
| 3622 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 3623 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 3624 // of a thread. | |
| 3625 // | |
| 3626 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
| 3627 // the fast estimate available on the platform. | |
| 3628 | |
| 3629 // current_thread_cpu_time() is not optimized for Windows yet | |
| 3630 jlong os::current_thread_cpu_time() { | |
| 3631 // return user + sys since the cost is the same | |
| 3632 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
| 3633 } | |
| 3634 | |
| 3635 jlong os::thread_cpu_time(Thread* thread) { | |
| 3636 // consistent with what current_thread_cpu_time() returns. | |
| 3637 return os::thread_cpu_time(thread, true /* user+sys */); | |
| 3638 } | |
| 3639 | |
| 3640 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 3641 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 3642 } | |
| 3643 | |
| 3644 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
| 3645 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
| 3646 // If this function changes, os::is_thread_cpu_time_supported() should too | |
| 3647 if (os::win32::is_nt()) { | |
| 3648 FILETIME CreationTime; | |
| 3649 FILETIME ExitTime; | |
| 3650 FILETIME KernelTime; | |
| 3651 FILETIME UserTime; | |
| 3652 | |
| 3653 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
| 3654 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 3655 return -1; | |
| 3656 else | |
| 3657 if (user_sys_cpu_time) { | |
| 3658 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
| 3659 } else { | |
| 3660 return FT2INT64(UserTime) * 100; | |
| 3661 } | |
| 3662 } else { | |
| 3663 return (jlong) timeGetTime() * 1000000; | |
| 3664 } | |
| 3665 } | |
| 3666 | |
| 3667 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 3668 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 3669 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 3670 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 3671 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 3672 } | |
| 3673 | |
| 3674 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 3675 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 3676 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 3677 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 3678 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 3679 } | |
| 3680 | |
| 3681 bool os::is_thread_cpu_time_supported() { | |
| 3682 // see os::thread_cpu_time | |
| 3683 if (os::win32::is_nt()) { | |
| 3684 FILETIME CreationTime; | |
| 3685 FILETIME ExitTime; | |
| 3686 FILETIME KernelTime; | |
| 3687 FILETIME UserTime; | |
| 3688 | |
| 3689 if ( GetThreadTimes(GetCurrentThread(), | |
| 3690 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 3691 return false; | |
| 3692 else | |
| 3693 return true; | |
| 3694 } else { | |
| 3695 return false; | |
| 3696 } | |
| 3697 } | |
| 3698 | |
| 3699 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
| 3700 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
| 3701 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
| 3702 // If we wanted to implement loadavg on Windows, we have a few options: | |
| 3703 // | |
| 3704 // a) Query CPU usage and run queue length and "fake" an answer by | |
| 3705 // returning the CPU usage if it's under 100%, and the run queue | |
| 3706 // length otherwise. It turns out that querying is pretty slow | |
| 3707 // on Windows, on the order of 200 microseconds on a fast machine. | |
| 3708 // Note that on the Windows the CPU usage value is the % usage | |
| 3709 // since the last time the API was called (and the first call | |
| 3710 // returns 100%), so we'd have to deal with that as well. | |
| 3711 // | |
| 3712 // b) Sample the "fake" answer using a sampling thread and store | |
| 3713 // the answer in a global variable. The call to loadavg would | |
| 3714 // just return the value of the global, avoiding the slow query. | |
| 3715 // | |
| 3716 // c) Sample a better answer using exponential decay to smooth the | |
| 3717 // value. This is basically the algorithm used by UNIX kernels. | |
| 3718 // | |
| 3719 // Note that sampling thread starvation could affect both (b) and (c). | |
| 3720 int os::loadavg(double loadavg[], int nelem) { | |
| 3721 return -1; | |
| 3722 } | |
| 3723 | |
| 3724 | |
| 3725 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
| 3726 bool os::dont_yield() { | |
| 3727 return DontYieldALot; | |
| 3728 } | |
| 3729 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3730 // 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
|
3731 // 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
|
3732 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3733 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
|
3734 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3735 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3736 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3737 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3738 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3739 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3740 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3741 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
|
3742 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3743 |
| 0 | 3744 // Is a (classpath) directory empty? |
| 3745 bool os::dir_is_empty(const char* path) { | |
| 3746 WIN32_FIND_DATA fd; | |
| 3747 HANDLE f = FindFirstFile(path, &fd); | |
| 3748 if (f == INVALID_HANDLE_VALUE) { | |
| 3749 return true; | |
| 3750 } | |
| 3751 FindClose(f); | |
| 3752 return false; | |
| 3753 } | |
| 3754 | |
| 3755 // create binary file, rewriting existing file if required | |
| 3756 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 3757 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
| 3758 if (!rewrite_existing) { | |
| 3759 oflags |= _O_EXCL; | |
| 3760 } | |
| 3761 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
| 3762 } | |
| 3763 | |
| 3764 // return current position of file pointer | |
| 3765 jlong os::current_file_offset(int fd) { | |
| 3766 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
| 3767 } | |
| 3768 | |
| 3769 // move file pointer to the specified offset | |
| 3770 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 3771 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
| 3772 } | |
| 3773 | |
| 3774 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3775 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
|
3776 return (jlong) ::_lseeki64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3777 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3778 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3779 // 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
|
3780 // from src/windows/hpi/src/path_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3781 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3782 /* 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
|
3783 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
|
3784 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
|
3785 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
|
3786 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
|
3787 treat double-byte lead characters correctly. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3788 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3789 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
|
3790 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
|
3791 succeeds. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3792 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3793 char *src = path, *dst = path, *end = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3794 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
|
3795 point to the colon following the drive |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3796 letter */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3797 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3798 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3799 assert(((!::IsDBCSLeadByte('/')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3800 && (!::IsDBCSLeadByte('\\')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3801 && (!::IsDBCSLeadByte(':'))), |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3802 "Illegal lead byte"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3803 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3804 /* Check for leading separators */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3805 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3806 while (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3807 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3808 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3809 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3810 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3811 /* 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
|
3812 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
|
3813 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
|
3814 "/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
|
3815 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3816 colon = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3817 *dst++ = ':'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3818 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3819 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3820 src = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3821 if (isfilesep(src[0]) && isfilesep(src[1])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3822 /* 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
|
3823 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
|
3824 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
|
3825 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
|
3826 src = dst = path + 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3827 path[0] = '\\'; /* Force first separator to '\\' */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3828 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3829 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3830 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3831 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3832 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3833 /* 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
|
3834 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
|
3835 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
|
3836 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
|
3837 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3838 while (*src != '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3839 if (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3840 *dst++ = '\\'; src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3841 while (isfilesep(*src)) src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3842 if (*src == '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3843 /* Check for trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3844 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3845 if (colon == dst - 2) break; /* "z:\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3846 if (dst == path + 1) break; /* "\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3847 if (dst == path + 2 && isfilesep(path[0])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3848 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3849 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
|
3850 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
|
3851 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
|
3852 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
|
3853 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
|
3854 directory of the current drive. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3855 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3856 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3857 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
|
3858 remove trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3859 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3860 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3861 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3862 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3863 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3864 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3865 if (*src) *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3866 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3867 } else { /* Copy a single-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3868 char c = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3869 *dst++ = c; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3870 /* Space is not a legal ending character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3871 if (c != ' ') end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3872 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3873 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3874 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3875 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3876 *end = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3877 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3878 /* 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
|
3879 if (colon == dst - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3880 path[2] = '.'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3881 path[3] = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3882 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3883 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3884 #ifdef DEBUG |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3885 jio_fprintf(stderr, "sysNativePath: %s\n", path); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3886 #endif DEBUG |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3887 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3888 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3889 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3890 // 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
|
3891 // 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
|
3892 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3893 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3894 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3895 long high = (long)(length >> 32); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3896 DWORD ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3897 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3898 if (h == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3899 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3900 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3901 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3902 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3903 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3904 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3905 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3906 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3907 if (::SetEndOfFile(h) == FALSE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3908 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3909 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3910 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3911 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3912 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3913 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3914 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3915 // 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
|
3916 // 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
|
3917 // 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
|
3918 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3919 int os::fsync(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3920 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3921 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3922 if ( (!::FlushFileBuffers(handle)) && |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3923 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3924 /* from winerror.h */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3925 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3926 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3927 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3928 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3929 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3930 static int nonSeekAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3931 static int stdinAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3932 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3933 #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
|
3934 #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
|
3935 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3936 // 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
|
3937 // 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
|
3938 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3939 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3940 jlong cur, end; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3941 struct _stati64 stbuf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3942 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3943 if (::_fstati64(fd, &stbuf64) >= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3944 int mode = stbuf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3945 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3946 int ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3947 long lpbytes; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3948 if (fd == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3949 ret = stdinAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3950 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3951 ret = nonSeekAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3952 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3953 (*bytes) = (jlong)(lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3954 return ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3955 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3956 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3957 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3958 } 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
|
3959 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3960 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3961 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3962 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3963 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3964 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3965 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3966 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3967 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3968 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3969 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3970 // 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
|
3971 // 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
|
3972 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3973 static int nonSeekAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3974 /* 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
|
3975 * (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
|
3976 * connected to an exec'd process). |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3977 * Standard Input is a special case. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3978 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3979 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3980 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3981 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3982 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3983 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3984 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3985 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3986 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
|
3987 /* 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
|
3988 * 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
|
3989 * 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
|
3990 * The only alternative is to raise an Exception, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3991 * which isn't really warranted. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3992 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3993 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3994 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3995 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3996 *pbytes = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3997 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3998 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3999 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4001 #define MAX_INPUT_EVENTS 2000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4002 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4003 // 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
|
4004 // 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
|
4005 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4006 static int stdinAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4007 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4008 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
|
4009 DWORD numEvents = 0; /* Number of events in buffer */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4010 DWORD i = 0; /* Loop index */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4011 DWORD curLength = 0; /* Position marker */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4012 DWORD actualLength = 0; /* Number of bytes readable */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4013 BOOL error = FALSE; /* Error holder */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4014 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
|
4015 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4016 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
|
4017 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4018 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4019 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4020 /* 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
|
4021 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4022 if (error == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4023 return nonSeekAvailable(fd, pbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4024 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4025 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4026 /* 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
|
4027 if (numEvents > MAX_INPUT_EVENTS) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4028 numEvents = MAX_INPUT_EVENTS; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4029 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4030 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4031 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
|
4032 if (lpBuffer == NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4033 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4034 } |
|
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 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4037 if (error == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4038 os::free(lpBuffer); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4039 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4040 } |
|
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 /* 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
|
4043 for(i=0; i<numEvents; i++) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4044 if (lpBuffer[i].EventType == KEY_EVENT) { |
|
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|
4045 |
|
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|
4046 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
|
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|
4047 &(lpBuffer[i].Event); |
|
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diff
changeset
|
4048 if (keyRecord->bKeyDown == TRUE) { |
|
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diff
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|
4049 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
|
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diff
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|
4050 curLength++; |
|
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diff
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|
4051 if (*keyPressed == '\r') { |
|
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diff
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|
4052 actualLength = curLength; |
|
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diff
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|
4053 } |
|
828eafbd85cc
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diff
changeset
|
4054 } |
|
828eafbd85cc
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diff
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|
4055 } |
|
828eafbd85cc
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diff
changeset
|
4056 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4057 |
|
828eafbd85cc
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ikrylov
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diff
changeset
|
4058 if(lpBuffer != NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4059 os::free(lpBuffer); |
|
828eafbd85cc
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ikrylov
parents:
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diff
changeset
|
4060 } |
|
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1972
diff
changeset
|
4061 |
|
828eafbd85cc
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1972
diff
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|
4062 *pbytes = (long) actualLength; |
|
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1972
diff
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|
4063 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4064 } |
|
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diff
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|
4065 |
| 0 | 4066 // Map a block of memory. |
| 4067 char* os::map_memory(int fd, const char* file_name, size_t file_offset, | |
| 4068 char *addr, size_t bytes, bool read_only, | |
| 4069 bool allow_exec) { | |
| 4070 HANDLE hFile; | |
| 4071 char* base; | |
| 4072 | |
| 4073 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
| 4074 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
| 4075 if (hFile == NULL) { | |
| 4076 if (PrintMiscellaneous && Verbose) { | |
| 4077 DWORD err = GetLastError(); | |
| 4078 tty->print_cr("CreateFile() failed: GetLastError->%ld."); | |
| 4079 } | |
| 4080 return NULL; | |
| 4081 } | |
| 4082 | |
| 4083 if (allow_exec) { | |
| 4084 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
| 4085 // unless it comes from a PE image (which the shared archive is not.) | |
| 4086 // Even VirtualProtect refuses to give execute access to mapped memory | |
| 4087 // that was not previously executable. | |
| 4088 // | |
| 4089 // Instead, stick the executable region in anonymous memory. Yuck. | |
| 4090 // Penalty is that ~4 pages will not be shareable - in the future | |
| 4091 // we might consider DLLizing the shared archive with a proper PE | |
| 4092 // header so that mapping executable + sharing is possible. | |
| 4093 | |
| 4094 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
| 4095 PAGE_READWRITE); | |
| 4096 if (base == NULL) { | |
| 4097 if (PrintMiscellaneous && Verbose) { | |
| 4098 DWORD err = GetLastError(); | |
| 4099 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
| 4100 } | |
| 4101 CloseHandle(hFile); | |
| 4102 return NULL; | |
| 4103 } | |
| 4104 | |
| 4105 DWORD bytes_read; | |
| 4106 OVERLAPPED overlapped; | |
| 4107 overlapped.Offset = (DWORD)file_offset; | |
| 4108 overlapped.OffsetHigh = 0; | |
| 4109 overlapped.hEvent = NULL; | |
| 4110 // ReadFile guarantees that if the return value is true, the requested | |
| 4111 // number of bytes were read before returning. | |
| 4112 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
| 4113 if (!res) { | |
| 4114 if (PrintMiscellaneous && Verbose) { | |
| 4115 DWORD err = GetLastError(); | |
| 4116 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
| 4117 } | |
| 4118 release_memory(base, bytes); | |
| 4119 CloseHandle(hFile); | |
| 4120 return NULL; | |
| 4121 } | |
| 4122 } else { | |
| 4123 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
| 4124 NULL /*file_name*/); | |
| 4125 if (hMap == NULL) { | |
| 4126 if (PrintMiscellaneous && Verbose) { | |
| 4127 DWORD err = GetLastError(); | |
| 4128 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld."); | |
| 4129 } | |
| 4130 CloseHandle(hFile); | |
| 4131 return NULL; | |
| 4132 } | |
| 4133 | |
| 4134 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
| 4135 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
| 4136 (DWORD)bytes, addr); | |
| 4137 if (base == NULL) { | |
| 4138 if (PrintMiscellaneous && Verbose) { | |
| 4139 DWORD err = GetLastError(); | |
| 4140 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
| 4141 } | |
| 4142 CloseHandle(hMap); | |
| 4143 CloseHandle(hFile); | |
| 4144 return NULL; | |
| 4145 } | |
| 4146 | |
| 4147 if (CloseHandle(hMap) == 0) { | |
| 4148 if (PrintMiscellaneous && Verbose) { | |
| 4149 DWORD err = GetLastError(); | |
| 4150 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
| 4151 } | |
| 4152 CloseHandle(hFile); | |
| 4153 return base; | |
| 4154 } | |
| 4155 } | |
| 4156 | |
| 4157 if (allow_exec) { | |
| 4158 DWORD old_protect; | |
| 4159 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
| 4160 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
| 4161 | |
| 4162 if (!res) { | |
| 4163 if (PrintMiscellaneous && Verbose) { | |
| 4164 DWORD err = GetLastError(); | |
| 4165 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
| 4166 } | |
| 4167 // Don't consider this a hard error, on IA32 even if the | |
| 4168 // VirtualProtect fails, we should still be able to execute | |
| 4169 CloseHandle(hFile); | |
| 4170 return base; | |
| 4171 } | |
| 4172 } | |
| 4173 | |
| 4174 if (CloseHandle(hFile) == 0) { | |
| 4175 if (PrintMiscellaneous && Verbose) { | |
| 4176 DWORD err = GetLastError(); | |
| 4177 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
| 4178 } | |
| 4179 return base; | |
| 4180 } | |
| 4181 | |
| 4182 return base; | |
| 4183 } | |
| 4184 | |
| 4185 | |
| 4186 // Remap a block of memory. | |
| 4187 char* os::remap_memory(int fd, const char* file_name, size_t file_offset, | |
| 4188 char *addr, size_t bytes, bool read_only, | |
| 4189 bool allow_exec) { | |
| 4190 // This OS does not allow existing memory maps to be remapped so we | |
| 4191 // have to unmap the memory before we remap it. | |
| 4192 if (!os::unmap_memory(addr, bytes)) { | |
| 4193 return NULL; | |
| 4194 } | |
| 4195 | |
| 4196 // There is a very small theoretical window between the unmap_memory() | |
| 4197 // call above and the map_memory() call below where a thread in native | |
| 4198 // code may be able to access an address that is no longer mapped. | |
| 4199 | |
| 4200 return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only, | |
| 4201 allow_exec); | |
| 4202 } | |
| 4203 | |
| 4204 | |
| 4205 // Unmap a block of memory. | |
| 4206 // Returns true=success, otherwise false. | |
| 4207 | |
| 4208 bool os::unmap_memory(char* addr, size_t bytes) { | |
| 4209 BOOL result = UnmapViewOfFile(addr); | |
| 4210 if (result == 0) { | |
| 4211 if (PrintMiscellaneous && Verbose) { | |
| 4212 DWORD err = GetLastError(); | |
| 4213 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
| 4214 } | |
| 4215 return false; | |
| 4216 } | |
| 4217 return true; | |
| 4218 } | |
| 4219 | |
| 4220 void os::pause() { | |
| 4221 char filename[MAX_PATH]; | |
| 4222 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 4223 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 4224 } else { | |
| 4225 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 4226 } | |
| 4227 | |
| 4228 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 4229 if (fd != -1) { | |
| 4230 struct stat buf; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4231 ::close(fd); |
| 0 | 4232 while (::stat(filename, &buf) == 0) { |
| 4233 Sleep(100); | |
| 4234 } | |
| 4235 } else { | |
| 4236 jio_fprintf(stderr, | |
| 4237 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 4238 } | |
| 4239 } | |
| 4240 | |
| 4241 // An Event wraps a win32 "CreateEvent" kernel handle. | |
| 4242 // | |
| 4243 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
| 4244 // | |
| 4245 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
| 4246 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
| 4247 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
| 4248 // In addition, an unpark() operation might fetch the handle field, but the | |
| 4249 // event could recycle between the fetch and the SetEvent() operation. | |
| 4250 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
| 4251 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
| 4252 // on an stale but recycled handle would be harmless, but in practice this might | |
| 4253 // confuse other non-Sun code, so it's not a viable approach. | |
| 4254 // | |
| 4255 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
| 4256 // with the Event. The event handle is never closed. This could be construed | |
| 4257 // as handle leakage, but only up to the maximum # of threads that have been extant | |
| 4258 // at any one time. This shouldn't be an issue, as windows platforms typically | |
| 4259 // permit a process to have hundreds of thousands of open handles. | |
| 4260 // | |
| 4261 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
| 4262 // and release unused handles. | |
| 4263 // | |
| 4264 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
| 4265 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
| 4266 // | |
| 4267 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
| 4268 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
| 4269 // | |
| 4270 // We use (2). | |
| 4271 // | |
| 4272 // TODO-FIXME: | |
| 4273 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
| 4274 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
| 4275 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
| 4276 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
| 4277 // into a single win32 CreateEvent() handle. | |
| 4278 // | |
| 4279 // _Event transitions in park() | |
| 4280 // -1 => -1 : illegal | |
| 4281 // 1 => 0 : pass - return immediately | |
| 4282 // 0 => -1 : block | |
| 4283 // | |
| 4284 // _Event serves as a restricted-range semaphore : | |
| 4285 // -1 : thread is blocked | |
| 4286 // 0 : neutral - thread is running or ready | |
| 4287 // 1 : signaled - thread is running or ready | |
| 4288 // | |
| 4289 // Another possible encoding of _Event would be | |
| 4290 // with explicit "PARKED" and "SIGNALED" bits. | |
| 4291 | |
| 4292 int os::PlatformEvent::park (jlong Millis) { | |
| 4293 guarantee (_ParkHandle != NULL , "Invariant") ; | |
| 4294 guarantee (Millis > 0 , "Invariant") ; | |
| 4295 int v ; | |
| 4296 | |
| 4297 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
| 4298 // the initial park() operation. | |
| 4299 | |
| 4300 for (;;) { | |
| 4301 v = _Event ; | |
| 4302 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4303 } | |
| 4304 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4305 if (v != 0) return OS_OK ; | |
| 4306 | |
| 4307 // Do this the hard way by blocking ... | |
| 4308 // TODO: consider a brief spin here, gated on the success of recent | |
| 4309 // spin attempts by this thread. | |
| 4310 // | |
| 4311 // We decompose long timeouts into series of shorter timed waits. | |
| 4312 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
| 4313 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
| 4314 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
| 4315 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
| 4316 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
| 4317 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
| 4318 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
| 4319 // for the already waited time. This policy does not admit any new outcomes. | |
| 4320 // In the future, however, we might want to track the accumulated wait time and | |
| 4321 // adjust Millis accordingly if we encounter a spurious wakeup. | |
| 4322 | |
| 4323 const int MAXTIMEOUT = 0x10000000 ; | |
| 4324 DWORD rv = WAIT_TIMEOUT ; | |
| 4325 while (_Event < 0 && Millis > 0) { | |
| 4326 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
| 4327 if (Millis > MAXTIMEOUT) { | |
| 4328 prd = MAXTIMEOUT ; | |
| 4329 } | |
| 4330 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
| 4331 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
| 4332 if (rv == WAIT_TIMEOUT) { | |
| 4333 Millis -= prd ; | |
| 4334 } | |
| 4335 } | |
| 4336 v = _Event ; | |
| 4337 _Event = 0 ; | |
| 4338 OrderAccess::fence() ; | |
| 4339 // If we encounter a nearly simultanous timeout expiry and unpark() | |
| 4340 // we return OS_OK indicating we awoke via unpark(). | |
| 4341 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
| 4342 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
| 4343 } | |
| 4344 | |
| 4345 void os::PlatformEvent::park () { | |
| 4346 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4347 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 4348 // may call park(). | |
| 4349 int v ; | |
| 4350 for (;;) { | |
| 4351 v = _Event ; | |
| 4352 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4353 } | |
| 4354 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4355 if (v != 0) return ; | |
| 4356 | |
| 4357 // Do this the hard way by blocking ... | |
| 4358 // TODO: consider a brief spin here, gated on the success of recent | |
| 4359 // spin attempts by this thread. | |
| 4360 while (_Event < 0) { | |
| 4361 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
| 4362 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
| 4363 } | |
| 4364 | |
| 4365 // Usually we'll find _Event == 0 at this point, but as | |
| 4366 // an optional optimization we clear it, just in case can | |
| 4367 // multiple unpark() operations drove _Event up to 1. | |
| 4368 _Event = 0 ; | |
| 4369 OrderAccess::fence() ; | |
| 4370 guarantee (_Event >= 0, "invariant") ; | |
| 4371 } | |
| 4372 | |
| 4373 void os::PlatformEvent::unpark() { | |
| 4374 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4375 int v ; | |
| 4376 for (;;) { | |
| 4377 v = _Event ; // Increment _Event if it's < 1. | |
| 4378 if (v > 0) { | |
| 4379 // If it's already signaled just return. | |
| 4380 // The LD of _Event could have reordered or be satisfied | |
| 4381 // by a read-aside from this processor's write buffer. | |
| 4382 // To avoid problems execute a barrier and then | |
| 4383 // ratify the value. A degenerate CAS() would also work. | |
| 4384 // Viz., CAS (v+0, &_Event, v) == v). | |
| 4385 OrderAccess::fence() ; | |
| 4386 if (_Event == v) return ; | |
| 4387 continue ; | |
| 4388 } | |
| 4389 if (Atomic::cmpxchg (v+1, &_Event, v) == v) break ; | |
| 4390 } | |
| 4391 if (v < 0) { | |
| 4392 ::SetEvent (_ParkHandle) ; | |
| 4393 } | |
| 4394 } | |
| 4395 | |
| 4396 | |
| 4397 // JSR166 | |
| 4398 // ------------------------------------------------------- | |
| 4399 | |
| 4400 /* | |
| 4401 * The Windows implementation of Park is very straightforward: Basic | |
| 4402 * operations on Win32 Events turn out to have the right semantics to | |
| 4403 * use them directly. We opportunistically resuse the event inherited | |
| 4404 * from Monitor. | |
| 4405 */ | |
| 4406 | |
| 4407 | |
| 4408 void Parker::park(bool isAbsolute, jlong time) { | |
| 4409 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4410 // First, demultiplex/decode time arguments | |
| 4411 if (time < 0) { // don't wait | |
| 4412 return; | |
| 4413 } | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
4414 else if (time == 0 && !isAbsolute) { |
| 0 | 4415 time = INFINITE; |
| 4416 } | |
| 4417 else if (isAbsolute) { | |
| 4418 time -= os::javaTimeMillis(); // convert to relative time | |
| 4419 if (time <= 0) // already elapsed | |
| 4420 return; | |
| 4421 } | |
| 4422 else { // relative | |
| 4423 time /= 1000000; // Must coarsen from nanos to millis | |
| 4424 if (time == 0) // Wait for the minimal time unit if zero | |
| 4425 time = 1; | |
| 4426 } | |
| 4427 | |
| 4428 JavaThread* thread = (JavaThread*)(Thread::current()); | |
| 4429 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 4430 JavaThread *jt = (JavaThread *)thread; | |
| 4431 | |
| 4432 // Don't wait if interrupted or already triggered | |
| 4433 if (Thread::is_interrupted(thread, false) || | |
| 4434 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
| 4435 ResetEvent(_ParkEvent); | |
| 4436 return; | |
| 4437 } | |
| 4438 else { | |
| 4439 ThreadBlockInVM tbivm(jt); | |
| 4440 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 4441 jt->set_suspend_equivalent(); | |
| 4442 | |
| 4443 WaitForSingleObject(_ParkEvent, time); | |
| 4444 ResetEvent(_ParkEvent); | |
| 4445 | |
| 4446 // If externally suspended while waiting, re-suspend | |
| 4447 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 4448 jt->java_suspend_self(); | |
| 4449 } | |
| 4450 } | |
| 4451 } | |
| 4452 | |
| 4453 void Parker::unpark() { | |
| 4454 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4455 SetEvent(_ParkEvent); | |
| 4456 } | |
| 4457 | |
| 4458 // Run the specified command in a separate process. Return its exit value, | |
| 4459 // or -1 on failure (e.g. can't create a new process). | |
| 4460 int os::fork_and_exec(char* cmd) { | |
| 4461 STARTUPINFO si; | |
| 4462 PROCESS_INFORMATION pi; | |
| 4463 | |
| 4464 memset(&si, 0, sizeof(si)); | |
| 4465 si.cb = sizeof(si); | |
| 4466 memset(&pi, 0, sizeof(pi)); | |
| 4467 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
| 4468 cmd, // command line | |
| 4469 NULL, // process security attribute | |
| 4470 NULL, // thread security attribute | |
| 4471 TRUE, // inherits system handles | |
| 4472 0, // no creation flags | |
| 4473 NULL, // use parent's environment block | |
| 4474 NULL, // use parent's starting directory | |
| 4475 &si, // (in) startup information | |
| 4476 &pi); // (out) process information | |
| 4477 | |
| 4478 if (rslt) { | |
| 4479 // Wait until child process exits. | |
| 4480 WaitForSingleObject(pi.hProcess, INFINITE); | |
| 4481 | |
| 4482 DWORD exit_code; | |
| 4483 GetExitCodeProcess(pi.hProcess, &exit_code); | |
| 4484 | |
| 4485 // Close process and thread handles. | |
| 4486 CloseHandle(pi.hProcess); | |
| 4487 CloseHandle(pi.hThread); | |
| 4488 | |
| 4489 return (int)exit_code; | |
| 4490 } else { | |
| 4491 return -1; | |
| 4492 } | |
| 4493 } | |
| 4494 | |
| 4495 //-------------------------------------------------------------------------------------------------- | |
| 4496 // Non-product code | |
| 4497 | |
| 4498 static int mallocDebugIntervalCounter = 0; | |
| 4499 static int mallocDebugCounter = 0; | |
| 4500 bool os::check_heap(bool force) { | |
| 4501 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
| 4502 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
| 4503 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
| 4504 // wrong; at these points, eax contains the address of the offending block (I think). | |
| 4505 // To get to the exlicit error message(s) below, just continue twice. | |
| 4506 HANDLE heap = GetProcessHeap(); | |
| 4507 { HeapLock(heap); | |
| 4508 PROCESS_HEAP_ENTRY phe; | |
| 4509 phe.lpData = NULL; | |
| 4510 while (HeapWalk(heap, &phe) != 0) { | |
| 4511 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
| 4512 !HeapValidate(heap, 0, phe.lpData)) { | |
| 4513 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
| 4514 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
| 4515 fatal("corrupted C heap"); | |
| 4516 } | |
| 4517 } | |
| 4518 int err = GetLastError(); | |
| 4519 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
|
4520 fatal(err_msg("heap walk aborted with error %d", err)); |
| 0 | 4521 } |
| 4522 HeapUnlock(heap); | |
| 4523 } | |
| 4524 mallocDebugIntervalCounter = 0; | |
| 4525 } | |
| 4526 return true; | |
| 4527 } | |
| 4528 | |
| 4529 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4530 bool os::find(address addr, outputStream* st) { |
| 0 | 4531 // Nothing yet |
| 4532 return false; | |
| 4533 } | |
| 4534 | |
| 4535 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
| 4536 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
| 4537 | |
| 4538 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 4539 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
| 4540 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
| 4541 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 4542 | |
| 4543 if (os::is_memory_serialize_page(thread, addr)) | |
| 4544 return EXCEPTION_CONTINUE_EXECUTION; | |
| 4545 } | |
| 4546 | |
| 4547 return EXCEPTION_CONTINUE_SEARCH; | |
| 4548 } | |
| 4549 | |
| 4550 static int getLastErrorString(char *buf, size_t len) | |
| 4551 { | |
| 4552 long errval; | |
| 4553 | |
| 4554 if ((errval = GetLastError()) != 0) | |
| 4555 { | |
| 4556 /* DOS error */ | |
| 4557 size_t n = (size_t)FormatMessage( | |
| 4558 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, | |
| 4559 NULL, | |
| 4560 errval, | |
| 4561 0, | |
| 4562 buf, | |
| 4563 (DWORD)len, | |
| 4564 NULL); | |
| 4565 if (n > 3) { | |
| 4566 /* Drop final '.', CR, LF */ | |
| 4567 if (buf[n - 1] == '\n') n--; | |
| 4568 if (buf[n - 1] == '\r') n--; | |
| 4569 if (buf[n - 1] == '.') n--; | |
| 4570 buf[n] = '\0'; | |
| 4571 } | |
| 4572 return (int)n; | |
| 4573 } | |
| 4574 | |
| 4575 if (errno != 0) | |
| 4576 { | |
| 4577 /* C runtime error that has no corresponding DOS error code */ | |
| 4578 const char *s = strerror(errno); | |
| 4579 size_t n = strlen(s); | |
| 4580 if (n >= len) n = len - 1; | |
| 4581 strncpy(buf, s, n); | |
| 4582 buf[n] = '\0'; | |
| 4583 return (int)n; | |
| 4584 } | |
| 4585 return 0; | |
| 4586 } | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4587 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4588 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4589 // We don't build a headless jre for Windows |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4590 bool os::is_headless_jre() { return false; } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4591 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4592 // OS_SocketInterface |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4593 // Not used on Windows |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4594 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4595 // OS_SocketInterface |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4596 typedef struct hostent * (PASCAL FAR *ws2_ifn_ptr_t)(...); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4597 ws2_ifn_ptr_t *get_host_by_name_fn = NULL; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4598 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4599 typedef CRITICAL_SECTION mutex_t; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4600 #define mutexInit(m) InitializeCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4601 #define mutexDestroy(m) DeleteCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4602 #define mutexLock(m) EnterCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4603 #define mutexUnlock(m) LeaveCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4604 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4605 static bool sockfnptrs_initialized = FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4606 static mutex_t sockFnTableMutex; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4607 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4608 /* is Winsock2 loaded? better to be explicit than to rely on sockfnptrs */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4609 static bool winsock2Available = FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4610 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4611 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4612 static void initSockFnTable() { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4613 int (PASCAL FAR* WSAStartupPtr)(WORD, LPWSADATA); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4614 WSADATA wsadata; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4615 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4616 ::mutexInit(&sockFnTableMutex); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4617 ::mutexLock(&sockFnTableMutex); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4618 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4619 if (sockfnptrs_initialized == FALSE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4620 HMODULE hWinsock; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4621 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4622 /* try to load Winsock2, and if that fails, load Winsock */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4623 hWinsock = ::LoadLibrary("ws2_32.dll"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4624 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4625 if (hWinsock == NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4626 jio_fprintf(stderr, "Could not load Winsock 2 (error: %d)\n", |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4627 ::GetLastError()); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4628 return; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4629 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4630 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4631 /* If we loaded a DLL, then we might as well initialize it. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4632 WSAStartupPtr = (int (PASCAL FAR *)(WORD, LPWSADATA)) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4633 ::GetProcAddress(hWinsock, "WSAStartup"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4634 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4635 if (WSAStartupPtr(MAKEWORD(1,1), &wsadata) != 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4636 jio_fprintf(stderr, "Could not initialize Winsock\n"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4637 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4638 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4639 get_host_by_name_fn |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4640 = (ws2_ifn_ptr_t*) GetProcAddress(hWinsock, "gethostbyname"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4641 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4642 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4643 assert(get_host_by_name_fn != NULL, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4644 "gethostbyname function not found"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4645 sockfnptrs_initialized = TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4646 ::mutexUnlock(&sockFnTableMutex); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4647 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4648 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4649 struct hostent* os::get_host_by_name(char* name) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4650 if (!sockfnptrs_initialized) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4651 initSockFnTable(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4652 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4653 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4654 assert(sockfnptrs_initialized == TRUE && get_host_by_name_fn != NULL, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4655 "sockfnptrs is not initialized or pointer to gethostbyname function is NULL"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4656 return (*get_host_by_name_fn)(name); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4657 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4658 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4659 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4660 int os::socket_close(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4661 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4662 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4663 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4664 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4665 int os::socket_available(int fd, jint *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4666 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4667 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4668 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4669 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4670 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
|
4671 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4672 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4673 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4674 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4675 int os::listen(int fd, int count) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4676 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4677 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4678 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4679 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4680 int os::connect(int fd, struct sockaddr *him, int len) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4681 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4682 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4683 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4684 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4685 int os::accept(int fd, struct sockaddr *him, int *len) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4686 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4687 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4688 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4689 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4690 int os::sendto(int fd, char *buf, int len, int flags, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4691 struct sockaddr *to, int tolen) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4692 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4693 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4694 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4695 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4696 int os::recvfrom(int fd, char *buf, int nBytes, int flags, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4697 sockaddr *from, int *fromlen) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4698 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4699 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4700 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4701 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4702 int os::recv(int fd, char *buf, int nBytes, int flags) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4703 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4704 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4705 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4706 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4707 int os::send(int fd, char *buf, int nBytes, int flags) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4708 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4709 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4710 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4711 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4712 int os::raw_send(int fd, char *buf, int nBytes, int flags) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4713 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4714 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4715 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4716 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4717 int os::timeout(int fd, long timeout) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4718 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4719 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4720 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4721 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4722 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
|
4723 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4724 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4725 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4726 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4727 int os::socket_shutdown(int fd, int howto) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4728 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4729 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4730 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4731 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4732 int os::bind(int fd, struct sockaddr *him, int len) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4733 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4734 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4735 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4736 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4737 int os::get_sock_name(int fd, struct sockaddr *him, int *len) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4738 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4739 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4740 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4741 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4742 int os::get_sock_opt(int fd, int level, int optname, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4743 char *optval, int* optlen) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4744 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4745 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4746 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4747 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4748 int os::set_sock_opt(int fd, int level, int optname, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4749 const char *optval, int optlen) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4750 ShouldNotReachHere(); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4751 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4752 } |