Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.cpp @ 3430:089aee76df10
Merge
| author | asaha |
|---|---|
| date | Wed, 04 May 2011 16:38:05 -0700 |
| parents | 5def270bc147 5504afd15955 |
| children | 7c948af3e651 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
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25 // Must be at least Windows 2000 or XP to use VectoredExceptions and IsDebuggerPresent |
| 0 | 26 #define _WIN32_WINNT 0x500 |
| 27 | |
| 1972 | 28 // no precompiled headers |
| 29 #include "classfile/classLoader.hpp" | |
| 30 #include "classfile/systemDictionary.hpp" | |
| 31 #include "classfile/vmSymbols.hpp" | |
| 32 #include "code/icBuffer.hpp" | |
| 33 #include "code/vtableStubs.hpp" | |
| 34 #include "compiler/compileBroker.hpp" | |
| 35 #include "interpreter/interpreter.hpp" | |
| 36 #include "jvm_windows.h" | |
| 37 #include "memory/allocation.inline.hpp" | |
| 38 #include "memory/filemap.hpp" | |
| 39 #include "mutex_windows.inline.hpp" | |
| 40 #include "oops/oop.inline.hpp" | |
| 41 #include "os_share_windows.hpp" | |
| 42 #include "prims/jniFastGetField.hpp" | |
| 43 #include "prims/jvm.h" | |
| 44 #include "prims/jvm_misc.hpp" | |
| 45 #include "runtime/arguments.hpp" | |
| 46 #include "runtime/extendedPC.hpp" | |
| 47 #include "runtime/globals.hpp" | |
| 48 #include "runtime/interfaceSupport.hpp" | |
| 49 #include "runtime/java.hpp" | |
| 50 #include "runtime/javaCalls.hpp" | |
| 51 #include "runtime/mutexLocker.hpp" | |
| 52 #include "runtime/objectMonitor.hpp" | |
| 53 #include "runtime/osThread.hpp" | |
| 54 #include "runtime/perfMemory.hpp" | |
| 55 #include "runtime/sharedRuntime.hpp" | |
| 56 #include "runtime/statSampler.hpp" | |
| 57 #include "runtime/stubRoutines.hpp" | |
| 58 #include "runtime/threadCritical.hpp" | |
| 59 #include "runtime/timer.hpp" | |
| 60 #include "services/attachListener.hpp" | |
| 61 #include "services/runtimeService.hpp" | |
| 62 #include "thread_windows.inline.hpp" | |
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63 #include "utilities/decoder.hpp" |
| 1972 | 64 #include "utilities/defaultStream.hpp" |
| 65 #include "utilities/events.hpp" | |
| 66 #include "utilities/growableArray.hpp" | |
| 67 #include "utilities/vmError.hpp" | |
| 68 #ifdef TARGET_ARCH_x86 | |
| 69 # include "assembler_x86.inline.hpp" | |
| 70 # include "nativeInst_x86.hpp" | |
| 71 #endif | |
| 72 #ifdef COMPILER1 | |
| 73 #include "c1/c1_Runtime1.hpp" | |
| 74 #endif | |
| 75 #ifdef COMPILER2 | |
| 76 #include "opto/runtime.hpp" | |
| 77 #endif | |
| 0 | 78 |
| 79 #ifdef _DEBUG | |
| 80 #include <crtdbg.h> | |
| 81 #endif | |
| 82 | |
| 83 | |
| 84 #include <windows.h> | |
| 85 #include <sys/types.h> | |
| 86 #include <sys/stat.h> | |
| 87 #include <sys/timeb.h> | |
| 88 #include <objidl.h> | |
| 89 #include <shlobj.h> | |
| 90 | |
| 91 #include <malloc.h> | |
| 92 #include <signal.h> | |
| 93 #include <direct.h> | |
| 94 #include <errno.h> | |
| 95 #include <fcntl.h> | |
| 96 #include <io.h> | |
| 97 #include <process.h> // For _beginthreadex(), _endthreadex() | |
| 98 #include <imagehlp.h> // For os::dll_address_to_function_name | |
| 99 | |
| 100 /* for enumerating dll libraries */ | |
| 101 #include <vdmdbg.h> | |
| 102 | |
| 103 // for timer info max values which include all bits | |
| 104 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
| 105 | |
| 106 // For DLL loading/load error detection | |
| 107 // Values of PE COFF | |
| 108 #define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c | |
| 109 #define IMAGE_FILE_SIGNATURE_LENGTH 4 | |
| 110 | |
| 111 static HANDLE main_process; | |
| 112 static HANDLE main_thread; | |
| 113 static int main_thread_id; | |
| 114 | |
| 115 static FILETIME process_creation_time; | |
| 116 static FILETIME process_exit_time; | |
| 117 static FILETIME process_user_time; | |
| 118 static FILETIME process_kernel_time; | |
| 119 | |
| 120 #ifdef _WIN64 | |
| 121 PVOID topLevelVectoredExceptionHandler = NULL; | |
| 122 #endif | |
| 123 | |
| 124 #ifdef _M_IA64 | |
| 125 #define __CPU__ ia64 | |
| 126 #elif _M_AMD64 | |
| 127 #define __CPU__ amd64 | |
| 128 #else | |
| 129 #define __CPU__ i486 | |
| 130 #endif | |
| 131 | |
| 132 // save DLL module handle, used by GetModuleFileName | |
| 133 | |
| 134 HINSTANCE vm_lib_handle; | |
| 135 static int getLastErrorString(char *buf, size_t len); | |
| 136 | |
| 137 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
| 138 switch (reason) { | |
| 139 case DLL_PROCESS_ATTACH: | |
| 140 vm_lib_handle = hinst; | |
| 141 if(ForceTimeHighResolution) | |
| 142 timeBeginPeriod(1L); | |
| 143 break; | |
| 144 case DLL_PROCESS_DETACH: | |
| 145 if(ForceTimeHighResolution) | |
| 146 timeEndPeriod(1L); | |
| 147 #ifdef _WIN64 | |
| 148 if (topLevelVectoredExceptionHandler != NULL) { | |
| 149 RemoveVectoredExceptionHandler(topLevelVectoredExceptionHandler); | |
| 150 topLevelVectoredExceptionHandler = NULL; | |
| 151 } | |
| 152 #endif | |
| 153 break; | |
| 154 default: | |
| 155 break; | |
| 156 } | |
| 157 return true; | |
| 158 } | |
| 159 | |
| 160 static inline double fileTimeAsDouble(FILETIME* time) { | |
| 161 const double high = (double) ((unsigned int) ~0); | |
| 162 const double split = 10000000.0; | |
| 163 double result = (time->dwLowDateTime / split) + | |
| 164 time->dwHighDateTime * (high/split); | |
| 165 return result; | |
| 166 } | |
| 167 | |
| 168 // Implementation of os | |
| 169 | |
| 170 bool os::getenv(const char* name, char* buffer, int len) { | |
| 171 int result = GetEnvironmentVariable(name, buffer, len); | |
| 172 return result > 0 && result < len; | |
| 173 } | |
| 174 | |
| 175 | |
| 176 // No setuid programs under Windows. | |
| 177 bool os::have_special_privileges() { | |
| 178 return false; | |
| 179 } | |
| 180 | |
| 181 | |
| 182 // This method is a periodic task to check for misbehaving JNI applications | |
| 183 // under CheckJNI, we can add any periodic checks here. | |
| 184 // For Windows at the moment does nothing | |
| 185 void os::run_periodic_checks() { | |
| 186 return; | |
| 187 } | |
| 188 | |
| 189 #ifndef _WIN64 | |
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190 // previous UnhandledExceptionFilter, if there is one |
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191 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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192 |
| 0 | 193 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
| 194 #endif | |
| 195 void os::init_system_properties_values() { | |
| 196 /* sysclasspath, java_home, dll_dir */ | |
| 197 { | |
| 198 char *home_path; | |
| 199 char *dll_path; | |
| 200 char *pslash; | |
| 201 char *bin = "\\bin"; | |
| 202 char home_dir[MAX_PATH]; | |
| 203 | |
| 204 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
| 205 os::jvm_path(home_dir, sizeof(home_dir)); | |
| 206 // Found the full path to jvm[_g].dll. | |
| 207 // Now cut the path to <java_home>/jre if we can. | |
| 208 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
| 209 pslash = strrchr(home_dir, '\\'); | |
| 210 if (pslash != NULL) { | |
| 211 *pslash = '\0'; /* get rid of \{client|server} */ | |
| 212 pslash = strrchr(home_dir, '\\'); | |
| 213 if (pslash != NULL) | |
| 214 *pslash = '\0'; /* get rid of \bin */ | |
| 215 } | |
| 216 } | |
| 217 | |
| 218 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1); | |
| 219 if (home_path == NULL) | |
| 220 return; | |
| 221 strcpy(home_path, home_dir); | |
| 222 Arguments::set_java_home(home_path); | |
| 223 | |
| 224 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1); | |
| 225 if (dll_path == NULL) | |
| 226 return; | |
| 227 strcpy(dll_path, home_dir); | |
| 228 strcat(dll_path, bin); | |
| 229 Arguments::set_dll_dir(dll_path); | |
| 230 | |
| 231 if (!set_boot_path('\\', ';')) | |
| 232 return; | |
| 233 } | |
| 234 | |
| 235 /* library_path */ | |
| 236 #define EXT_DIR "\\lib\\ext" | |
| 237 #define BIN_DIR "\\bin" | |
| 238 #define PACKAGE_DIR "\\Sun\\Java" | |
| 239 { | |
| 240 /* Win32 library search order (See the documentation for LoadLibrary): | |
| 241 * | |
| 242 * 1. The directory from which application is loaded. | |
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243 * 2. The system wide Java Extensions directory (Java only) |
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244 * 3. System directory (GetSystemDirectory) |
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245 * 4. Windows directory (GetWindowsDirectory) |
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246 * 5. The PATH environment variable |
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247 * 6. The current directory |
| 0 | 248 */ |
| 249 | |
| 250 char *library_path; | |
| 251 char tmp[MAX_PATH]; | |
| 252 char *path_str = ::getenv("PATH"); | |
| 253 | |
| 254 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
| 255 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10); | |
| 256 | |
| 257 library_path[0] = '\0'; | |
| 258 | |
| 259 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
| 260 *(strrchr(tmp, '\\')) = '\0'; | |
| 261 strcat(library_path, tmp); | |
| 262 | |
| 263 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 264 strcat(library_path, ";"); | |
| 265 strcat(library_path, tmp); | |
| 266 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
| 267 | |
| 268 GetSystemDirectory(tmp, sizeof(tmp)); | |
| 269 strcat(library_path, ";"); | |
| 270 strcat(library_path, tmp); | |
| 271 | |
| 272 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 273 strcat(library_path, ";"); | |
| 274 strcat(library_path, tmp); | |
| 275 | |
| 276 if (path_str) { | |
| 277 strcat(library_path, ";"); | |
| 278 strcat(library_path, path_str); | |
| 279 } | |
| 280 | |
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281 strcat(library_path, ";."); |
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282 |
| 0 | 283 Arguments::set_library_path(library_path); |
| 284 FREE_C_HEAP_ARRAY(char, library_path); | |
| 285 } | |
| 286 | |
| 287 /* Default extensions directory */ | |
| 288 { | |
| 289 char path[MAX_PATH]; | |
| 290 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
| 291 GetWindowsDirectory(path, MAX_PATH); | |
| 292 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
| 293 path, PACKAGE_DIR, EXT_DIR); | |
| 294 Arguments::set_ext_dirs(buf); | |
| 295 } | |
| 296 #undef EXT_DIR | |
| 297 #undef BIN_DIR | |
| 298 #undef PACKAGE_DIR | |
| 299 | |
| 300 /* Default endorsed standards directory. */ | |
| 301 { | |
| 302 #define ENDORSED_DIR "\\lib\\endorsed" | |
| 303 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
| 304 char * buf = NEW_C_HEAP_ARRAY(char, len); | |
| 305 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); | |
| 306 Arguments::set_endorsed_dirs(buf); | |
| 307 #undef ENDORSED_DIR | |
| 308 } | |
| 309 | |
| 310 #ifndef _WIN64 | |
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311 // set our UnhandledExceptionFilter and save any previous one |
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312 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
| 0 | 313 #endif |
| 314 | |
| 315 // Done | |
| 316 return; | |
| 317 } | |
| 318 | |
| 319 void os::breakpoint() { | |
| 320 DebugBreak(); | |
| 321 } | |
| 322 | |
| 323 // Invoked from the BREAKPOINT Macro | |
| 324 extern "C" void breakpoint() { | |
| 325 os::breakpoint(); | |
| 326 } | |
| 327 | |
| 328 // Returns an estimate of the current stack pointer. Result must be guaranteed | |
| 329 // to point into the calling threads stack, and be no lower than the current | |
| 330 // stack pointer. | |
| 331 | |
| 332 address os::current_stack_pointer() { | |
| 333 int dummy; | |
| 334 address sp = (address)&dummy; | |
| 335 return sp; | |
| 336 } | |
| 337 | |
| 338 // os::current_stack_base() | |
| 339 // | |
| 340 // Returns the base of the stack, which is the stack's | |
| 341 // starting address. This function must be called | |
| 342 // while running on the stack of the thread being queried. | |
| 343 | |
| 344 address os::current_stack_base() { | |
| 345 MEMORY_BASIC_INFORMATION minfo; | |
| 346 address stack_bottom; | |
| 347 size_t stack_size; | |
| 348 | |
| 349 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 350 stack_bottom = (address)minfo.AllocationBase; | |
| 351 stack_size = minfo.RegionSize; | |
| 352 | |
| 353 // Add up the sizes of all the regions with the same | |
| 354 // AllocationBase. | |
| 355 while( 1 ) | |
| 356 { | |
| 357 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
| 358 if ( stack_bottom == (address)minfo.AllocationBase ) | |
| 359 stack_size += minfo.RegionSize; | |
| 360 else | |
| 361 break; | |
| 362 } | |
| 363 | |
| 364 #ifdef _M_IA64 | |
| 365 // IA64 has memory and register stacks | |
| 366 stack_size = stack_size / 2; | |
| 367 #endif | |
| 368 return stack_bottom + stack_size; | |
| 369 } | |
| 370 | |
| 371 size_t os::current_stack_size() { | |
| 372 size_t sz; | |
| 373 MEMORY_BASIC_INFORMATION minfo; | |
| 374 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 375 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
| 376 return sz; | |
| 377 } | |
| 378 | |
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379 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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380 const struct tm* time_struct_ptr = localtime(clock); |
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381 if (time_struct_ptr != NULL) { |
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382 *res = *time_struct_ptr; |
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383 return res; |
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384 } |
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385 return NULL; |
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386 } |
| 0 | 387 |
| 388 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
| 389 | |
| 390 // Thread start routine for all new Java threads | |
| 391 static unsigned __stdcall java_start(Thread* thread) { | |
| 392 // Try to randomize the cache line index of hot stack frames. | |
| 393 // This helps when threads of the same stack traces evict each other's | |
| 394 // cache lines. The threads can be either from the same JVM instance, or | |
| 395 // from different JVM instances. The benefit is especially true for | |
| 396 // processors with hyperthreading technology. | |
| 397 static int counter = 0; | |
| 398 int pid = os::current_process_id(); | |
| 399 _alloca(((pid ^ counter++) & 7) * 128); | |
| 400 | |
| 401 OSThread* osthr = thread->osthread(); | |
| 402 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 403 | |
| 404 if (UseNUMA) { | |
| 405 int lgrp_id = os::numa_get_group_id(); | |
| 406 if (lgrp_id != -1) { | |
| 407 thread->set_lgrp_id(lgrp_id); | |
| 408 } | |
| 409 } | |
| 410 | |
| 411 | |
| 412 if (UseVectoredExceptions) { | |
| 413 // If we are using vectored exception we don't need to set a SEH | |
| 414 thread->run(); | |
| 415 } | |
| 416 else { | |
| 417 // Install a win32 structured exception handler around every thread created | |
| 418 // by VM, so VM can genrate error dump when an exception occurred in non- | |
| 419 // Java thread (e.g. VM thread). | |
| 420 __try { | |
| 421 thread->run(); | |
| 422 } __except(topLevelExceptionFilter( | |
| 423 (_EXCEPTION_POINTERS*)_exception_info())) { | |
| 424 // Nothing to do. | |
| 425 } | |
| 426 } | |
| 427 | |
| 428 // One less thread is executing | |
| 429 // When the VMThread gets here, the main thread may have already exited | |
| 430 // which frees the CodeHeap containing the Atomic::add code | |
| 431 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 432 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 433 } | |
| 434 | |
| 435 return 0; | |
| 436 } | |
| 437 | |
| 438 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
| 439 // Allocate the OSThread object | |
| 440 OSThread* osthread = new OSThread(NULL, NULL); | |
| 441 if (osthread == NULL) return NULL; | |
| 442 | |
| 443 // Initialize support for Java interrupts | |
| 444 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 445 if (interrupt_event == NULL) { | |
| 446 delete osthread; | |
| 447 return NULL; | |
| 448 } | |
| 449 osthread->set_interrupt_event(interrupt_event); | |
| 450 | |
| 451 // Store info on the Win32 thread into the OSThread | |
| 452 osthread->set_thread_handle(thread_handle); | |
| 453 osthread->set_thread_id(thread_id); | |
| 454 | |
| 455 if (UseNUMA) { | |
| 456 int lgrp_id = os::numa_get_group_id(); | |
| 457 if (lgrp_id != -1) { | |
| 458 thread->set_lgrp_id(lgrp_id); | |
| 459 } | |
| 460 } | |
| 461 | |
| 462 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 463 osthread->set_state(INITIALIZED); | |
| 464 | |
| 465 return osthread; | |
| 466 } | |
| 467 | |
| 468 | |
| 469 bool os::create_attached_thread(JavaThread* thread) { | |
| 470 #ifdef ASSERT | |
| 471 thread->verify_not_published(); | |
| 472 #endif | |
| 473 HANDLE thread_h; | |
| 474 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
| 475 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
| 476 fatal("DuplicateHandle failed\n"); | |
| 477 } | |
| 478 OSThread* osthread = create_os_thread(thread, thread_h, | |
| 479 (int)current_thread_id()); | |
| 480 if (osthread == NULL) { | |
| 481 return false; | |
| 482 } | |
| 483 | |
| 484 // Initial thread state is RUNNABLE | |
| 485 osthread->set_state(RUNNABLE); | |
| 486 | |
| 487 thread->set_osthread(osthread); | |
| 488 return true; | |
| 489 } | |
| 490 | |
| 491 bool os::create_main_thread(JavaThread* thread) { | |
| 492 #ifdef ASSERT | |
| 493 thread->verify_not_published(); | |
| 494 #endif | |
| 495 if (_starting_thread == NULL) { | |
| 496 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
| 497 if (_starting_thread == NULL) { | |
| 498 return false; | |
| 499 } | |
| 500 } | |
| 501 | |
| 502 // The primordial thread is runnable from the start) | |
| 503 _starting_thread->set_state(RUNNABLE); | |
| 504 | |
| 505 thread->set_osthread(_starting_thread); | |
| 506 return true; | |
| 507 } | |
| 508 | |
| 509 // Allocate and initialize a new OSThread | |
| 510 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 511 unsigned thread_id; | |
| 512 | |
| 513 // Allocate the OSThread object | |
| 514 OSThread* osthread = new OSThread(NULL, NULL); | |
| 515 if (osthread == NULL) { | |
| 516 return false; | |
| 517 } | |
| 518 | |
| 519 // Initialize support for Java interrupts | |
| 520 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 521 if (interrupt_event == NULL) { | |
| 522 delete osthread; | |
| 523 return NULL; | |
| 524 } | |
| 525 osthread->set_interrupt_event(interrupt_event); | |
| 526 osthread->set_interrupted(false); | |
| 527 | |
| 528 thread->set_osthread(osthread); | |
| 529 | |
| 530 if (stack_size == 0) { | |
| 531 switch (thr_type) { | |
| 532 case os::java_thread: | |
| 533 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 534 if (JavaThread::stack_size_at_create() > 0) | |
| 535 stack_size = JavaThread::stack_size_at_create(); | |
| 536 break; | |
| 537 case os::compiler_thread: | |
| 538 if (CompilerThreadStackSize > 0) { | |
| 539 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 540 break; | |
| 541 } // else fall through: | |
| 542 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 543 case os::vm_thread: | |
| 544 case os::pgc_thread: | |
| 545 case os::cgc_thread: | |
| 546 case os::watcher_thread: | |
| 547 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 548 break; | |
| 549 } | |
| 550 } | |
| 551 | |
| 552 // Create the Win32 thread | |
| 553 // | |
| 554 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
| 555 // does not specify stack size. Instead, it specifies the size of | |
| 556 // initially committed space. The stack size is determined by | |
| 557 // PE header in the executable. If the committed "stack_size" is larger | |
| 558 // than default value in the PE header, the stack is rounded up to the | |
| 559 // nearest multiple of 1MB. For example if the launcher has default | |
| 560 // stack size of 320k, specifying any size less than 320k does not | |
| 561 // affect the actual stack size at all, it only affects the initial | |
| 562 // commitment. On the other hand, specifying 'stack_size' larger than | |
| 563 // default value may cause significant increase in memory usage, because | |
| 564 // not only the stack space will be rounded up to MB, but also the | |
| 565 // entire space is committed upfront. | |
| 566 // | |
| 567 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
| 568 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
| 569 // are not supposed to call CreateThread() directly according to MSDN | |
| 570 // document because JVM uses C runtime library. The good news is that the | |
| 571 // flag appears to work with _beginthredex() as well. | |
| 572 | |
| 573 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
| 574 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
| 575 #endif | |
| 576 | |
| 577 HANDLE thread_handle = | |
| 578 (HANDLE)_beginthreadex(NULL, | |
| 579 (unsigned)stack_size, | |
| 580 (unsigned (__stdcall *)(void*)) java_start, | |
| 581 thread, | |
| 582 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
| 583 &thread_id); | |
| 584 if (thread_handle == NULL) { | |
| 585 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
| 586 // without the flag. | |
| 587 thread_handle = | |
| 588 (HANDLE)_beginthreadex(NULL, | |
| 589 (unsigned)stack_size, | |
| 590 (unsigned (__stdcall *)(void*)) java_start, | |
| 591 thread, | |
| 592 CREATE_SUSPENDED, | |
| 593 &thread_id); | |
| 594 } | |
| 595 if (thread_handle == NULL) { | |
| 596 // Need to clean up stuff we've allocated so far | |
| 597 CloseHandle(osthread->interrupt_event()); | |
| 598 thread->set_osthread(NULL); | |
| 599 delete osthread; | |
| 600 return NULL; | |
| 601 } | |
| 602 | |
| 603 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 604 | |
| 605 // Store info on the Win32 thread into the OSThread | |
| 606 osthread->set_thread_handle(thread_handle); | |
| 607 osthread->set_thread_id(thread_id); | |
| 608 | |
| 609 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 610 osthread->set_state(INITIALIZED); | |
| 611 | |
| 612 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 613 return true; | |
| 614 } | |
| 615 | |
| 616 | |
| 617 // Free Win32 resources related to the OSThread | |
| 618 void os::free_thread(OSThread* osthread) { | |
| 619 assert(osthread != NULL, "osthread not set"); | |
| 620 CloseHandle(osthread->thread_handle()); | |
| 621 CloseHandle(osthread->interrupt_event()); | |
| 622 delete osthread; | |
| 623 } | |
| 624 | |
| 625 | |
| 626 static int has_performance_count = 0; | |
| 627 static jlong first_filetime; | |
| 628 static jlong initial_performance_count; | |
| 629 static jlong performance_frequency; | |
| 630 | |
| 631 | |
| 632 jlong as_long(LARGE_INTEGER x) { | |
| 633 jlong result = 0; // initialization to avoid warning | |
| 634 set_high(&result, x.HighPart); | |
| 635 set_low(&result, x.LowPart); | |
| 636 return result; | |
| 637 } | |
| 638 | |
| 639 | |
| 640 jlong os::elapsed_counter() { | |
| 641 LARGE_INTEGER count; | |
| 642 if (has_performance_count) { | |
| 643 QueryPerformanceCounter(&count); | |
| 644 return as_long(count) - initial_performance_count; | |
| 645 } else { | |
| 646 FILETIME wt; | |
| 647 GetSystemTimeAsFileTime(&wt); | |
| 648 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
| 649 } | |
| 650 } | |
| 651 | |
| 652 | |
| 653 jlong os::elapsed_frequency() { | |
| 654 if (has_performance_count) { | |
| 655 return performance_frequency; | |
| 656 } else { | |
| 657 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
| 658 return 10000000; | |
| 659 } | |
| 660 } | |
| 661 | |
| 662 | |
| 663 julong os::available_memory() { | |
| 664 return win32::available_memory(); | |
| 665 } | |
| 666 | |
| 667 julong os::win32::available_memory() { | |
|
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668 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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669 // value if total memory is larger than 4GB |
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670 MEMORYSTATUSEX ms; |
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671 ms.dwLength = sizeof(ms); |
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672 GlobalMemoryStatusEx(&ms); |
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673 |
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674 return (julong)ms.ullAvailPhys; |
| 0 | 675 } |
| 676 | |
| 677 julong os::physical_memory() { | |
| 678 return win32::physical_memory(); | |
| 679 } | |
| 680 | |
| 681 julong os::allocatable_physical_memory(julong size) { | |
|
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682 #ifdef _LP64 |
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683 return size; |
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684 #else |
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685 // Limit to 1400m because of the 2gb address space wall |
| 0 | 686 return MIN2(size, (julong)1400*M); |
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687 #endif |
| 0 | 688 } |
| 689 | |
| 690 // VC6 lacks DWORD_PTR | |
| 691 #if _MSC_VER < 1300 | |
| 692 typedef UINT_PTR DWORD_PTR; | |
| 693 #endif | |
| 694 | |
| 695 int os::active_processor_count() { | |
| 696 DWORD_PTR lpProcessAffinityMask = 0; | |
| 697 DWORD_PTR lpSystemAffinityMask = 0; | |
| 698 int proc_count = processor_count(); | |
| 699 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
| 700 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
| 701 // Nof active processors is number of bits in process affinity mask | |
| 702 int bitcount = 0; | |
| 703 while (lpProcessAffinityMask != 0) { | |
| 704 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
| 705 bitcount++; | |
| 706 } | |
| 707 return bitcount; | |
| 708 } else { | |
| 709 return proc_count; | |
| 710 } | |
| 711 } | |
| 712 | |
| 713 bool os::distribute_processes(uint length, uint* distribution) { | |
| 714 // Not yet implemented. | |
| 715 return false; | |
| 716 } | |
| 717 | |
| 718 bool os::bind_to_processor(uint processor_id) { | |
| 719 // Not yet implemented. | |
| 720 return false; | |
| 721 } | |
| 722 | |
| 723 static void initialize_performance_counter() { | |
| 724 LARGE_INTEGER count; | |
| 725 if (QueryPerformanceFrequency(&count)) { | |
| 726 has_performance_count = 1; | |
| 727 performance_frequency = as_long(count); | |
| 728 QueryPerformanceCounter(&count); | |
| 729 initial_performance_count = as_long(count); | |
| 730 } else { | |
| 731 has_performance_count = 0; | |
| 732 FILETIME wt; | |
| 733 GetSystemTimeAsFileTime(&wt); | |
| 734 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 735 } | |
| 736 } | |
| 737 | |
| 738 | |
| 739 double os::elapsedTime() { | |
| 740 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
| 741 } | |
| 742 | |
| 743 | |
| 744 // Windows format: | |
| 745 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
| 746 // Java format: | |
| 747 // Java standards require the number of milliseconds since 1/1/1970 | |
| 748 | |
| 749 // Constant offset - calculated using offset() | |
| 750 static jlong _offset = 116444736000000000; | |
| 751 // Fake time counter for reproducible results when debugging | |
| 752 static jlong fake_time = 0; | |
| 753 | |
| 754 #ifdef ASSERT | |
| 755 // Just to be safe, recalculate the offset in debug mode | |
| 756 static jlong _calculated_offset = 0; | |
| 757 static int _has_calculated_offset = 0; | |
| 758 | |
| 759 jlong offset() { | |
| 760 if (_has_calculated_offset) return _calculated_offset; | |
| 761 SYSTEMTIME java_origin; | |
| 762 java_origin.wYear = 1970; | |
| 763 java_origin.wMonth = 1; | |
| 764 java_origin.wDayOfWeek = 0; // ignored | |
| 765 java_origin.wDay = 1; | |
| 766 java_origin.wHour = 0; | |
| 767 java_origin.wMinute = 0; | |
| 768 java_origin.wSecond = 0; | |
| 769 java_origin.wMilliseconds = 0; | |
| 770 FILETIME jot; | |
| 771 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
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772 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
| 0 | 773 } |
| 774 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
| 775 _has_calculated_offset = 1; | |
| 776 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
| 777 return _calculated_offset; | |
| 778 } | |
| 779 #else | |
| 780 jlong offset() { | |
| 781 return _offset; | |
| 782 } | |
| 783 #endif | |
| 784 | |
| 785 jlong windows_to_java_time(FILETIME wt) { | |
| 786 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 787 return (a - offset()) / 10000; | |
| 788 } | |
| 789 | |
| 790 FILETIME java_to_windows_time(jlong l) { | |
| 791 jlong a = (l * 10000) + offset(); | |
| 792 FILETIME result; | |
| 793 result.dwHighDateTime = high(a); | |
| 794 result.dwLowDateTime = low(a); | |
| 795 return result; | |
| 796 } | |
| 797 | |
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798 // For now, we say that Windows does not support vtime. I have no idea |
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799 // whether it can actually be made to (DLD, 9/13/05). |
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800 |
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801 bool os::supports_vtime() { return false; } |
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802 bool os::enable_vtime() { return false; } |
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803 bool os::vtime_enabled() { return false; } |
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804 double os::elapsedVTime() { |
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805 // better than nothing, but not much |
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806 return elapsedTime(); |
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807 } |
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808 |
| 0 | 809 jlong os::javaTimeMillis() { |
| 810 if (UseFakeTimers) { | |
| 811 return fake_time++; | |
| 812 } else { | |
| 61 | 813 FILETIME wt; |
| 814 GetSystemTimeAsFileTime(&wt); | |
| 815 return windows_to_java_time(wt); | |
| 0 | 816 } |
| 817 } | |
| 818 | |
| 819 #define NANOS_PER_SEC CONST64(1000000000) | |
| 820 #define NANOS_PER_MILLISEC 1000000 | |
| 821 jlong os::javaTimeNanos() { | |
| 822 if (!has_performance_count) { | |
| 823 return javaTimeMillis() * NANOS_PER_MILLISEC; // the best we can do. | |
| 824 } else { | |
| 825 LARGE_INTEGER current_count; | |
| 826 QueryPerformanceCounter(¤t_count); | |
| 827 double current = as_long(current_count); | |
| 828 double freq = performance_frequency; | |
| 829 jlong time = (jlong)((current/freq) * NANOS_PER_SEC); | |
| 830 return time; | |
| 831 } | |
| 832 } | |
| 833 | |
| 834 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
| 835 if (!has_performance_count) { | |
| 836 // javaTimeMillis() doesn't have much percision, | |
| 837 // but it is not going to wrap -- so all 64 bits | |
| 838 info_ptr->max_value = ALL_64_BITS; | |
| 839 | |
| 840 // this is a wall clock timer, so may skip | |
| 841 info_ptr->may_skip_backward = true; | |
| 842 info_ptr->may_skip_forward = true; | |
| 843 } else { | |
| 844 jlong freq = performance_frequency; | |
| 845 if (freq < NANOS_PER_SEC) { | |
| 846 // the performance counter is 64 bits and we will | |
| 847 // be multiplying it -- so no wrap in 64 bits | |
| 848 info_ptr->max_value = ALL_64_BITS; | |
| 849 } else if (freq > NANOS_PER_SEC) { | |
| 850 // use the max value the counter can reach to | |
| 851 // determine the max value which could be returned | |
| 852 julong max_counter = (julong)ALL_64_BITS; | |
| 853 info_ptr->max_value = (jlong)(max_counter / (freq / NANOS_PER_SEC)); | |
| 854 } else { | |
| 855 // the performance counter is 64 bits and we will | |
| 856 // be using it directly -- so no wrap in 64 bits | |
| 857 info_ptr->max_value = ALL_64_BITS; | |
| 858 } | |
| 859 | |
| 860 // using a counter, so no skipping | |
| 861 info_ptr->may_skip_backward = false; | |
| 862 info_ptr->may_skip_forward = false; | |
| 863 } | |
| 864 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
| 865 } | |
| 866 | |
| 867 char* os::local_time_string(char *buf, size_t buflen) { | |
| 868 SYSTEMTIME st; | |
| 869 GetLocalTime(&st); | |
| 870 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
| 871 st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); | |
| 872 return buf; | |
| 873 } | |
| 874 | |
| 875 bool os::getTimesSecs(double* process_real_time, | |
| 876 double* process_user_time, | |
| 877 double* process_system_time) { | |
| 878 HANDLE h_process = GetCurrentProcess(); | |
| 879 FILETIME create_time, exit_time, kernel_time, user_time; | |
| 880 BOOL result = GetProcessTimes(h_process, | |
| 881 &create_time, | |
| 882 &exit_time, | |
| 883 &kernel_time, | |
| 884 &user_time); | |
| 885 if (result != 0) { | |
| 886 FILETIME wt; | |
| 887 GetSystemTimeAsFileTime(&wt); | |
| 888 jlong rtc_millis = windows_to_java_time(wt); | |
| 889 jlong user_millis = windows_to_java_time(user_time); | |
| 890 jlong system_millis = windows_to_java_time(kernel_time); | |
| 891 *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS); | |
| 892 *process_user_time = ((double) user_millis) / ((double) MILLIUNITS); | |
| 893 *process_system_time = ((double) system_millis) / ((double) MILLIUNITS); | |
| 894 return true; | |
| 895 } else { | |
| 896 return false; | |
| 897 } | |
| 898 } | |
| 899 | |
| 900 void os::shutdown() { | |
| 901 | |
| 902 // allow PerfMemory to attempt cleanup of any persistent resources | |
| 903 perfMemory_exit(); | |
| 904 | |
| 905 // flush buffered output, finish log files | |
| 906 ostream_abort(); | |
| 907 | |
| 908 // Check for abort hook | |
| 909 abort_hook_t abort_hook = Arguments::abort_hook(); | |
| 910 if (abort_hook != NULL) { | |
| 911 abort_hook(); | |
| 912 } | |
| 913 } | |
| 914 | |
|
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915 |
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916 static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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917 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
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918 |
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919 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { |
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920 HINSTANCE dbghelp; |
|
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921 EXCEPTION_POINTERS ep; |
|
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922 MINIDUMP_EXCEPTION_INFORMATION mei; |
|
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923 MINIDUMP_EXCEPTION_INFORMATION* pmei; |
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924 |
|
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925 HANDLE hProcess = GetCurrentProcess(); |
|
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926 DWORD processId = GetCurrentProcessId(); |
|
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927 HANDLE dumpFile; |
|
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|
928 MINIDUMP_TYPE dumpType; |
|
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929 static const char* cwd; |
|
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930 |
|
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931 // If running on a client version of Windows and user has not explicitly enabled dumping |
|
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932 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) { |
|
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933 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false); |
|
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934 return; |
|
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935 // If running on a server version of Windows and user has explictly disabled dumping |
|
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936 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
|
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937 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
|
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|
938 return; |
|
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|
939 } |
|
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|
940 |
|
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|
941 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0); |
|
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942 |
|
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943 if (dbghelp == NULL) { |
|
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|
944 VMError::report_coredump_status("Failed to load dbghelp.dll", false); |
|
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|
945 return; |
|
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|
946 } |
|
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|
947 |
|
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948 _MiniDumpWriteDump = CAST_TO_FN_PTR( |
|
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949 BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
|
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950 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION), |
|
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951 GetProcAddress(dbghelp, "MiniDumpWriteDump")); |
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952 |
|
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953 if (_MiniDumpWriteDump == NULL) { |
|
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954 VMError::report_coredump_status("Failed to find MiniDumpWriteDump() in module dbghelp.dll", false); |
|
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|
955 return; |
|
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|
956 } |
|
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|
957 |
|
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958 dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
|
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959 |
|
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960 // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
|
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961 // API_VERSION_NUMBER 11 or higher contains the ones we want though |
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962 #if API_VERSION_NUMBER >= 11 |
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963 dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
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964 MiniDumpWithUnloadedModules); |
|
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|
965 #endif |
|
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966 |
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967 cwd = get_current_directory(NULL, 0); |
|
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968 jio_snprintf(buffer, bufferSize, "%s\\hs_err_pid%u.mdmp",cwd, current_process_id()); |
|
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969 dumpFile = CreateFile(buffer, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
|
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970 |
|
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971 if (dumpFile == INVALID_HANDLE_VALUE) { |
|
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972 VMError::report_coredump_status("Failed to create file for dumping", false); |
|
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973 return; |
|
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|
974 } |
|
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|
975 if (exceptionRecord != NULL && contextRecord != NULL) { |
|
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976 ep.ContextRecord = (PCONTEXT) contextRecord; |
|
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977 ep.ExceptionRecord = (PEXCEPTION_RECORD) exceptionRecord; |
|
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|
978 |
|
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979 mei.ThreadId = GetCurrentThreadId(); |
|
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980 mei.ExceptionPointers = &ep; |
|
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981 pmei = &mei; |
|
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|
982 } else { |
|
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|
983 pmei = NULL; |
|
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|
984 } |
|
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|
985 |
|
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|
986 |
|
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|
987 // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
|
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988 // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
|
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989 if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == false && |
|
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990 _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == false) { |
|
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991 VMError::report_coredump_status("Call to MiniDumpWriteDump() failed", false); |
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992 } else { |
|
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993 VMError::report_coredump_status(buffer, true); |
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|
994 } |
|
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|
995 |
|
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|
996 CloseHandle(dumpFile); |
|
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|
997 } |
|
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|
998 |
|
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|
999 |
|
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|
1000 |
| 0 | 1001 void os::abort(bool dump_core) |
| 1002 { | |
| 1003 os::shutdown(); | |
| 1004 // no core dump on Windows | |
| 1005 ::exit(1); | |
| 1006 } | |
| 1007 | |
| 1008 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 1009 void os::die() { | |
| 1010 _exit(-1); | |
| 1011 } | |
| 1012 | |
| 1013 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
| 1014 // * dirent_md.c 1.15 00/02/02 | |
| 1015 // | |
| 1016 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
| 1017 | |
| 1018 /* Caller must have already run dirname through JVM_NativePath, which removes | |
| 1019 duplicate slashes and converts all instances of '/' into '\\'. */ | |
| 1020 | |
| 1021 DIR * | |
| 1022 os::opendir(const char *dirname) | |
| 1023 { | |
| 1024 assert(dirname != NULL, "just checking"); // hotspot change | |
| 1025 DIR *dirp = (DIR *)malloc(sizeof(DIR)); | |
| 1026 DWORD fattr; // hotspot change | |
| 1027 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
| 1028 | |
| 1029 if (dirp == 0) { | |
| 1030 errno = ENOMEM; | |
| 1031 return 0; | |
| 1032 } | |
| 1033 | |
| 1034 /* | |
| 1035 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
| 1036 * as a directory in FindFirstFile(). We detect this case here and | |
| 1037 * prepend the current drive name. | |
| 1038 */ | |
| 1039 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
| 1040 alt_dirname[0] = _getdrive() + 'A' - 1; | |
| 1041 alt_dirname[1] = ':'; | |
| 1042 alt_dirname[2] = '\\'; | |
| 1043 alt_dirname[3] = '\0'; | |
| 1044 dirname = alt_dirname; | |
| 1045 } | |
| 1046 | |
| 1047 dirp->path = (char *)malloc(strlen(dirname) + 5); | |
| 1048 if (dirp->path == 0) { | |
| 1049 free(dirp); | |
| 1050 errno = ENOMEM; | |
| 1051 return 0; | |
| 1052 } | |
| 1053 strcpy(dirp->path, dirname); | |
| 1054 | |
| 1055 fattr = GetFileAttributes(dirp->path); | |
| 1056 if (fattr == 0xffffffff) { | |
| 1057 free(dirp->path); | |
| 1058 free(dirp); | |
| 1059 errno = ENOENT; | |
| 1060 return 0; | |
| 1061 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
| 1062 free(dirp->path); | |
| 1063 free(dirp); | |
| 1064 errno = ENOTDIR; | |
| 1065 return 0; | |
| 1066 } | |
| 1067 | |
| 1068 /* Append "*.*", or possibly "\\*.*", to path */ | |
| 1069 if (dirp->path[1] == ':' | |
| 1070 && (dirp->path[2] == '\0' | |
| 1071 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
| 1072 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
| 1073 strcat(dirp->path, "*.*"); | |
| 1074 } else { | |
| 1075 strcat(dirp->path, "\\*.*"); | |
| 1076 } | |
| 1077 | |
| 1078 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
| 1079 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1080 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
| 1081 free(dirp->path); | |
| 1082 free(dirp); | |
| 1083 errno = EACCES; | |
| 1084 return 0; | |
| 1085 } | |
| 1086 } | |
| 1087 return dirp; | |
| 1088 } | |
| 1089 | |
| 1090 /* parameter dbuf unused on Windows */ | |
| 1091 | |
| 1092 struct dirent * | |
| 1093 os::readdir(DIR *dirp, dirent *dbuf) | |
| 1094 { | |
| 1095 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1096 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1097 return 0; | |
| 1098 } | |
| 1099 | |
| 1100 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
| 1101 | |
| 1102 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
| 1103 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
| 1104 errno = EBADF; | |
| 1105 return 0; | |
| 1106 } | |
| 1107 FindClose(dirp->handle); | |
| 1108 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1109 } | |
| 1110 | |
| 1111 return &dirp->dirent; | |
| 1112 } | |
| 1113 | |
| 1114 int | |
| 1115 os::closedir(DIR *dirp) | |
| 1116 { | |
| 1117 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1118 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
| 1119 if (!FindClose(dirp->handle)) { | |
| 1120 errno = EBADF; | |
| 1121 return -1; | |
| 1122 } | |
| 1123 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1124 } | |
| 1125 free(dirp->path); | |
| 1126 free(dirp); | |
| 1127 return 0; | |
| 1128 } | |
| 1129 | |
|
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1130 // This must be hard coded because it's the system's temporary |
|
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|
1131 // directory not the java application's temp directory, ala java.io.tmpdir. |
|
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|
1132 const char* os::get_temp_directory() { |
|
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|
1133 static char path_buf[MAX_PATH]; |
|
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1134 if (GetTempPath(MAX_PATH, path_buf)>0) |
|
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|
1135 return path_buf; |
|
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|
1136 else{ |
|
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|
1137 path_buf[0]='\0'; |
|
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|
1138 return path_buf; |
|
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|
1139 } |
| 0 | 1140 } |
| 1141 | |
| 691 | 1142 static bool file_exists(const char* filename) { |
| 1143 if (filename == NULL || strlen(filename) == 0) { | |
| 1144 return false; | |
| 1145 } | |
| 1146 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
| 1147 } | |
| 1148 | |
| 1149 void os::dll_build_name(char *buffer, size_t buflen, | |
| 1150 const char* pname, const char* fname) { | |
| 1151 const size_t pnamelen = pname ? strlen(pname) : 0; | |
| 1152 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
| 1153 | |
| 1154 // Quietly truncates on buffer overflow. Should be an error. | |
| 1155 if (pnamelen + strlen(fname) + 10 > buflen) { | |
| 1156 *buffer = '\0'; | |
| 1157 return; | |
| 1158 } | |
| 1159 | |
| 1160 if (pnamelen == 0) { | |
| 1161 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
| 1162 } else if (c == ':' || c == '\\') { | |
| 1163 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
| 1164 } else if (strchr(pname, *os::path_separator()) != NULL) { | |
| 1165 int n; | |
| 1166 char** pelements = split_path(pname, &n); | |
| 1167 for (int i = 0 ; i < n ; i++) { | |
| 1168 char* path = pelements[i]; | |
| 1169 // Really shouldn't be NULL, but check can't hurt | |
| 1170 size_t plen = (path == NULL) ? 0 : strlen(path); | |
| 1171 if (plen == 0) { | |
| 1172 continue; // skip the empty path values | |
| 1173 } | |
| 1174 const char lastchar = path[plen - 1]; | |
| 1175 if (lastchar == ':' || lastchar == '\\') { | |
| 1176 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
| 1177 } else { | |
| 1178 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
| 1179 } | |
| 1180 if (file_exists(buffer)) { | |
| 1181 break; | |
| 1182 } | |
| 242 | 1183 } |
| 691 | 1184 // release the storage |
| 1185 for (int i = 0 ; i < n ; i++) { | |
| 1186 if (pelements[i] != NULL) { | |
| 1187 FREE_C_HEAP_ARRAY(char, pelements[i]); | |
| 1188 } | |
| 242 | 1189 } |
| 691 | 1190 if (pelements != NULL) { |
| 1191 FREE_C_HEAP_ARRAY(char*, pelements); | |
| 1192 } | |
| 1193 } else { | |
| 1194 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
| 1195 } | |
| 242 | 1196 } |
| 1197 | |
| 0 | 1198 // Needs to be in os specific directory because windows requires another |
| 1199 // header file <direct.h> | |
| 1200 const char* os::get_current_directory(char *buf, int buflen) { | |
| 1201 return _getcwd(buf, buflen); | |
| 1202 } | |
| 1203 | |
| 1204 //----------------------------------------------------------- | |
| 1205 // Helper functions for fatal error handler | |
| 1206 #ifdef _WIN64 | |
| 1207 // Helper routine which returns true if address in | |
| 1208 // within the NTDLL address space. | |
| 1209 // | |
| 1210 static bool _addr_in_ntdll( address addr ) | |
| 1211 { | |
| 1212 HMODULE hmod; | |
| 1213 MODULEINFO minfo; | |
| 1214 | |
| 1215 hmod = GetModuleHandle("NTDLL.DLL"); | |
| 1216 if ( hmod == NULL ) return false; | |
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1217 if ( !os::PSApiDll::GetModuleInformation( GetCurrentProcess(), hmod, |
| 0 | 1218 &minfo, sizeof(MODULEINFO)) ) |
| 1219 return false; | |
| 1220 | |
| 1221 if ( (addr >= minfo.lpBaseOfDll) && | |
| 1222 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
| 1223 return true; | |
| 1224 else | |
| 1225 return false; | |
| 1226 } | |
| 1227 #endif | |
| 1228 | |
| 1229 | |
| 1230 // Enumerate all modules for a given process ID | |
| 1231 // | |
| 1232 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
| 1233 // different API for doing this. We use PSAPI.DLL on NT based | |
| 1234 // Windows and ToolHelp on 95/98/Me. | |
| 1235 | |
| 1236 // Callback function that is called by enumerate_modules() on | |
| 1237 // every DLL module. | |
| 1238 // Input parameters: | |
| 1239 // int pid, | |
| 1240 // char* module_file_name, | |
| 1241 // address module_base_addr, | |
| 1242 // unsigned module_size, | |
| 1243 // void* param | |
| 1244 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
| 1245 | |
| 1246 // enumerate_modules for Windows NT, using PSAPI | |
| 1247 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
| 1248 { | |
| 1249 HANDLE hProcess ; | |
| 1250 | |
| 1251 # define MAX_NUM_MODULES 128 | |
| 1252 HMODULE modules[MAX_NUM_MODULES]; | |
| 1253 static char filename[ MAX_PATH ]; | |
| 1254 int result = 0; | |
| 1255 | |
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1256 if (!os::PSApiDll::PSApiAvailable()) { |
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1257 return 0; |
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1258 } |
| 0 | 1259 |
| 1260 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
| 1261 FALSE, pid ) ; | |
| 1262 if (hProcess == NULL) return 0; | |
| 1263 | |
| 1264 DWORD size_needed; | |
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1265 if (!os::PSApiDll::EnumProcessModules(hProcess, modules, |
| 0 | 1266 sizeof(modules), &size_needed)) { |
| 1267 CloseHandle( hProcess ); | |
| 1268 return 0; | |
| 1269 } | |
| 1270 | |
| 1271 // number of modules that are currently loaded | |
| 1272 int num_modules = size_needed / sizeof(HMODULE); | |
| 1273 | |
| 1274 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
| 1275 // Get Full pathname: | |
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1276 if(!os::PSApiDll::GetModuleFileNameEx(hProcess, modules[i], |
| 0 | 1277 filename, sizeof(filename))) { |
| 1278 filename[0] = '\0'; | |
| 1279 } | |
| 1280 | |
| 1281 MODULEINFO modinfo; | |
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1282 if (!os::PSApiDll::GetModuleInformation(hProcess, modules[i], |
| 0 | 1283 &modinfo, sizeof(modinfo))) { |
| 1284 modinfo.lpBaseOfDll = NULL; | |
| 1285 modinfo.SizeOfImage = 0; | |
| 1286 } | |
| 1287 | |
| 1288 // Invoke callback function | |
| 1289 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
| 1290 modinfo.SizeOfImage, param); | |
| 1291 if (result) break; | |
| 1292 } | |
| 1293 | |
| 1294 CloseHandle( hProcess ) ; | |
| 1295 return result; | |
| 1296 } | |
| 1297 | |
| 1298 | |
| 1299 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
| 1300 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
| 1301 { | |
| 1302 HANDLE hSnapShot ; | |
| 1303 static MODULEENTRY32 modentry ; | |
| 1304 int result = 0; | |
| 1305 | |
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1306 if (!os::Kernel32Dll::HelpToolsAvailable()) { |
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1307 return 0; |
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1308 } |
| 0 | 1309 |
| 1310 // Get a handle to a Toolhelp snapshot of the system | |
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1311 hSnapShot = os::Kernel32Dll::CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; |
| 0 | 1312 if( hSnapShot == INVALID_HANDLE_VALUE ) { |
| 1313 return FALSE ; | |
| 1314 } | |
| 1315 | |
| 1316 // iterate through all modules | |
| 1317 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1318 bool not_done = os::Kernel32Dll::Module32First( hSnapShot, &modentry ) != 0; |
| 0 | 1319 |
| 1320 while( not_done ) { | |
| 1321 // invoke the callback | |
| 1322 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
| 1323 modentry.modBaseSize, param); | |
| 1324 if (result) break; | |
| 1325 | |
| 1326 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1327 not_done = os::Kernel32Dll::Module32Next( hSnapShot, &modentry ) != 0; |
| 0 | 1328 } |
| 1329 | |
| 1330 CloseHandle(hSnapShot); | |
| 1331 return result; | |
| 1332 } | |
| 1333 | |
| 1334 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
| 1335 { | |
| 1336 // Get current process ID if caller doesn't provide it. | |
| 1337 if (!pid) pid = os::current_process_id(); | |
| 1338 | |
| 1339 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
| 1340 else return _enumerate_modules_windows(pid, func, param); | |
| 1341 } | |
| 1342 | |
| 1343 struct _modinfo { | |
| 1344 address addr; | |
| 1345 char* full_path; // point to a char buffer | |
| 1346 int buflen; // size of the buffer | |
| 1347 address base_addr; | |
| 1348 }; | |
| 1349 | |
| 1350 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
| 1351 unsigned size, void * param) { | |
| 1352 struct _modinfo *pmod = (struct _modinfo *)param; | |
| 1353 if (!pmod) return -1; | |
| 1354 | |
| 1355 if (base_addr <= pmod->addr && | |
| 1356 base_addr+size > pmod->addr) { | |
| 1357 // if a buffer is provided, copy path name to the buffer | |
| 1358 if (pmod->full_path) { | |
| 1359 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
| 1360 } | |
| 1361 pmod->base_addr = base_addr; | |
| 1362 return 1; | |
| 1363 } | |
| 1364 return 0; | |
| 1365 } | |
| 1366 | |
| 1367 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1368 int buflen, int* offset) { | |
| 1369 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always | |
| 1370 // return the full path to the DLL file, sometimes it returns path | |
| 1371 // to the corresponding PDB file (debug info); sometimes it only | |
| 1372 // returns partial path, which makes life painful. | |
| 1373 | |
| 1374 struct _modinfo mi; | |
| 1375 mi.addr = addr; | |
| 1376 mi.full_path = buf; | |
| 1377 mi.buflen = buflen; | |
| 1378 int pid = os::current_process_id(); | |
| 1379 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { | |
| 1380 // buf already contains path name | |
| 1381 if (offset) *offset = addr - mi.base_addr; | |
| 1382 return true; | |
| 1383 } else { | |
| 1384 if (buf) buf[0] = '\0'; | |
| 1385 if (offset) *offset = -1; | |
| 1386 return false; | |
| 1387 } | |
| 1388 } | |
| 1389 | |
| 1390 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1391 int buflen, int *offset) { | |
|
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1392 if (Decoder::decode(addr, buf, buflen, offset) == Decoder::no_error) { |
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1393 return true; |
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1394 } |
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1395 if (offset != NULL) *offset = -1; |
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1396 if (buf != NULL) buf[0] = '\0'; |
| 0 | 1397 return false; |
| 1398 } | |
| 1399 | |
| 1400 // save the start and end address of jvm.dll into param[0] and param[1] | |
| 1401 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
| 1402 unsigned size, void * param) { | |
| 1403 if (!param) return -1; | |
| 1404 | |
| 1405 if (base_addr <= (address)_locate_jvm_dll && | |
| 1406 base_addr+size > (address)_locate_jvm_dll) { | |
| 1407 ((address*)param)[0] = base_addr; | |
| 1408 ((address*)param)[1] = base_addr + size; | |
| 1409 return 1; | |
| 1410 } | |
| 1411 return 0; | |
| 1412 } | |
| 1413 | |
| 1414 address vm_lib_location[2]; // start and end address of jvm.dll | |
| 1415 | |
| 1416 // check if addr is inside jvm.dll | |
| 1417 bool os::address_is_in_vm(address addr) { | |
| 1418 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
| 1419 int pid = os::current_process_id(); | |
| 1420 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
| 1421 assert(false, "Can't find jvm module."); | |
| 1422 return false; | |
| 1423 } | |
| 1424 } | |
| 1425 | |
| 1426 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
| 1427 } | |
| 1428 | |
| 1429 // print module info; param is outputStream* | |
| 1430 static int _print_module(int pid, char* fname, address base, | |
| 1431 unsigned size, void* param) { | |
| 1432 if (!param) return -1; | |
| 1433 | |
| 1434 outputStream* st = (outputStream*)param; | |
| 1435 | |
| 1436 address end_addr = base + size; | |
| 1437 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
| 1438 return 0; | |
| 1439 } | |
| 1440 | |
| 1441 // Loads .dll/.so and | |
| 1442 // in case of error it checks if .dll/.so was built for the | |
| 1443 // same architecture as Hotspot is running on | |
| 1444 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
| 1445 { | |
| 1446 void * result = LoadLibrary(name); | |
| 1447 if (result != NULL) | |
| 1448 { | |
| 1449 return result; | |
| 1450 } | |
| 1451 | |
| 1452 long errcode = GetLastError(); | |
| 1453 if (errcode == ERROR_MOD_NOT_FOUND) { | |
| 1454 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
| 1455 ebuf[ebuflen-1]='\0'; | |
| 1456 return NULL; | |
| 1457 } | |
| 1458 | |
| 1459 // Parsing dll below | |
| 1460 // If we can read dll-info and find that dll was built | |
| 1461 // for an architecture other than Hotspot is running in | |
| 1462 // - then print to buffer "DLL was built for a different architecture" | |
| 1463 // else call getLastErrorString to obtain system error message | |
| 1464 | |
| 1465 // Read system error message into ebuf | |
| 1466 // It may or may not be overwritten below (in the for loop and just above) | |
| 1467 getLastErrorString(ebuf, (size_t) ebuflen); | |
| 1468 ebuf[ebuflen-1]='\0'; | |
| 1469 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
| 1470 if (file_descriptor<0) | |
| 1471 { | |
| 1472 return NULL; | |
| 1473 } | |
| 1474 | |
| 1475 uint32_t signature_offset; | |
| 1476 uint16_t lib_arch=0; | |
| 1477 bool failed_to_get_lib_arch= | |
| 1478 ( | |
| 1479 //Go to position 3c in the dll | |
| 1480 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
| 1481 || | |
| 1482 // Read loacation of signature | |
| 1483 (sizeof(signature_offset)!= | |
| 1484 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
| 1485 || | |
| 1486 //Go to COFF File Header in dll | |
| 1487 //that is located after"signature" (4 bytes long) | |
| 1488 (os::seek_to_file_offset(file_descriptor, | |
| 1489 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
| 1490 || | |
| 1491 //Read field that contains code of architecture | |
| 1492 // that dll was build for | |
| 1493 (sizeof(lib_arch)!= | |
| 1494 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
| 1495 ); | |
| 1496 | |
| 1497 ::close(file_descriptor); | |
| 1498 if (failed_to_get_lib_arch) | |
| 1499 { | |
| 1500 // file i/o error - report getLastErrorString(...) msg | |
| 1501 return NULL; | |
| 1502 } | |
| 1503 | |
| 1504 typedef struct | |
| 1505 { | |
| 1506 uint16_t arch_code; | |
| 1507 char* arch_name; | |
| 1508 } arch_t; | |
| 1509 | |
| 1510 static const arch_t arch_array[]={ | |
| 1511 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
| 1512 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
| 1513 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
| 1514 }; | |
| 1515 #if (defined _M_IA64) | |
| 1516 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
| 1517 #elif (defined _M_AMD64) | |
| 1518 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
| 1519 #elif (defined _M_IX86) | |
| 1520 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
| 1521 #else | |
| 1522 #error Method os::dll_load requires that one of following \ | |
| 1523 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
| 1524 #endif | |
| 1525 | |
| 1526 | |
| 1527 // Obtain a string for printf operation | |
| 1528 // lib_arch_str shall contain string what platform this .dll was built for | |
| 1529 // running_arch_str shall string contain what platform Hotspot was built for | |
| 1530 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
| 1531 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
| 1532 { | |
| 1533 if (lib_arch==arch_array[i].arch_code) | |
| 1534 lib_arch_str=arch_array[i].arch_name; | |
| 1535 if (running_arch==arch_array[i].arch_code) | |
| 1536 running_arch_str=arch_array[i].arch_name; | |
| 1537 } | |
| 1538 | |
| 1539 assert(running_arch_str, | |
| 1540 "Didn't find runing architecture code in arch_array"); | |
| 1541 | |
| 1542 // If the architure is right | |
| 1543 // but some other error took place - report getLastErrorString(...) msg | |
| 1544 if (lib_arch == running_arch) | |
| 1545 { | |
| 1546 return NULL; | |
| 1547 } | |
| 1548 | |
| 1549 if (lib_arch_str!=NULL) | |
| 1550 { | |
| 1551 ::_snprintf(ebuf, ebuflen-1, | |
| 1552 "Can't load %s-bit .dll on a %s-bit platform", | |
| 1553 lib_arch_str,running_arch_str); | |
| 1554 } | |
| 1555 else | |
| 1556 { | |
| 1557 // don't know what architecture this dll was build for | |
| 1558 ::_snprintf(ebuf, ebuflen-1, | |
| 1559 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
| 1560 lib_arch,running_arch_str); | |
| 1561 } | |
| 1562 | |
| 1563 return NULL; | |
| 1564 } | |
| 1565 | |
| 1566 | |
| 1567 void os::print_dll_info(outputStream *st) { | |
| 1568 int pid = os::current_process_id(); | |
| 1569 st->print_cr("Dynamic libraries:"); | |
| 1570 enumerate_modules(pid, _print_module, (void *)st); | |
| 1571 } | |
| 1572 | |
| 1573 void os::print_os_info(outputStream* st) { | |
|
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1574 st->print("OS:"); |
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1575 |
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1576 OSVERSIONINFOEX osvi; |
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1577 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
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1578 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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1579 |
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1580 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
|
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|
1581 st->print_cr("N/A"); |
|
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|
1582 return; |
|
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|
1583 } |
|
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|
1584 |
|
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|
1585 int os_vers = osvi.dwMajorVersion * 1000 + osvi.dwMinorVersion; |
|
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|
1586 if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) { |
|
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|
1587 switch (os_vers) { |
|
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|
1588 case 3051: st->print(" Windows NT 3.51"); break; |
|
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|
1589 case 4000: st->print(" Windows NT 4.0"); break; |
|
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|
1590 case 5000: st->print(" Windows 2000"); break; |
|
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|
1591 case 5001: st->print(" Windows XP"); break; |
|
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|
1592 case 5002: |
|
962
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|
1593 case 6000: |
|
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|
1594 case 6001: { |
|
273
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|
1595 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
|
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|
1596 // find out whether we are running on 64 bit processor or not. |
|
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|
1597 SYSTEM_INFO si; |
|
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|
1598 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
|
3429
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changeset
|
1599 if (!os::Kernel32Dll::GetNativeSystemInfoAvailable()){ |
|
273
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|
1600 GetSystemInfo(&si); |
|
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|
1601 } else { |
|
3429
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changeset
|
1602 os::Kernel32Dll::GetNativeSystemInfo(&si); |
|
273
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|
1603 } |
|
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|
1604 if (os_vers == 5002) { |
|
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|
1605 if (osvi.wProductType == VER_NT_WORKSTATION && |
|
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|
1606 si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
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|
1607 st->print(" Windows XP x64 Edition"); |
|
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|
1608 else |
|
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|
1609 st->print(" Windows Server 2003 family"); |
|
962
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diff
changeset
|
1610 } else if (os_vers == 6000) { |
|
273
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|
1611 if (osvi.wProductType == VER_NT_WORKSTATION) |
|
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|
1612 st->print(" Windows Vista"); |
|
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|
1613 else |
|
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|
1614 st->print(" Windows Server 2008"); |
|
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|
1615 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
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|
1616 st->print(" , 64 bit"); |
|
962
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diff
changeset
|
1617 } else if (os_vers == 6001) { |
|
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6821003: Update hotspot windows os_win32 for windows 7
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diff
changeset
|
1618 if (osvi.wProductType == VER_NT_WORKSTATION) { |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
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diff
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|
1619 st->print(" Windows 7"); |
|
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diff
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|
1620 } else { |
|
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diff
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|
1621 // Unrecognized windows, print out its major and minor versions |
|
aafa4232dfd7
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diff
changeset
|
1622 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
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|
1623 } |
|
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diff
changeset
|
1624 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
aafa4232dfd7
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|
1625 st->print(" , 64 bit"); |
|
aafa4232dfd7
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diff
changeset
|
1626 } else { // future os |
|
aafa4232dfd7
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parents:
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diff
changeset
|
1627 // Unrecognized windows, print out its major and minor versions |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
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diff
changeset
|
1628 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
aafa4232dfd7
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changeset
|
1629 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
aafa4232dfd7
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|
1630 st->print(" , 64 bit"); |
|
273
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|
1631 } |
|
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|
1632 break; |
|
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|
1633 } |
|
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|
1634 default: // future windows, print out its major and minor versions |
|
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|
1635 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
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|
1636 } |
|
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|
1637 } else { |
|
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|
1638 switch (os_vers) { |
|
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|
1639 case 4000: st->print(" Windows 95"); break; |
|
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|
1640 case 4010: st->print(" Windows 98"); break; |
|
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|
1641 case 4090: st->print(" Windows Me"); break; |
|
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|
1642 default: // future windows, print out its major and minor versions |
|
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|
1643 st->print(" Windows %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
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|
1644 } |
|
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|
1645 } |
|
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|
1646 st->print(" Build %d", osvi.dwBuildNumber); |
|
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|
1647 st->print(" %s", osvi.szCSDVersion); // service pack |
|
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|
1648 st->cr(); |
| 0 | 1649 } |
| 1650 | |
| 1651 void os::print_memory_info(outputStream* st) { | |
| 1652 st->print("Memory:"); | |
| 1653 st->print(" %dk page", os::vm_page_size()>>10); | |
| 1654 | |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1655 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1656 // value if total memory is larger than 4GB |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1657 MEMORYSTATUSEX ms; |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1658 ms.dwLength = sizeof(ms); |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1659 GlobalMemoryStatusEx(&ms); |
| 0 | 1660 |
| 1661 st->print(", physical %uk", os::physical_memory() >> 10); | |
| 1662 st->print("(%uk free)", os::available_memory() >> 10); | |
| 1663 | |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1664 st->print(", swap %uk", ms.ullTotalPageFile >> 10); |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1665 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
| 0 | 1666 st->cr(); |
| 1667 } | |
| 1668 | |
| 1669 void os::print_siginfo(outputStream *st, void *siginfo) { | |
| 1670 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
| 1671 st->print("siginfo:"); | |
| 1672 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
| 1673 | |
| 1674 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 1675 er->NumberParameters >= 2) { | |
| 1676 switch (er->ExceptionInformation[0]) { | |
| 1677 case 0: st->print(", reading address"); break; | |
| 1678 case 1: st->print(", writing address"); break; | |
| 1679 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
| 1680 er->ExceptionInformation[0]); | |
| 1681 } | |
| 1682 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
| 1683 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
| 1684 er->NumberParameters >= 2 && UseSharedSpaces) { | |
| 1685 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 1686 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
| 1687 st->print("\n\nError accessing class data sharing archive." \ | |
| 1688 " Mapped file inaccessible during execution, " \ | |
| 1689 " possible disk/network problem."); | |
| 1690 } | |
| 1691 } else { | |
| 1692 int num = er->NumberParameters; | |
| 1693 if (num > 0) { | |
| 1694 st->print(", ExceptionInformation="); | |
| 1695 for (int i = 0; i < num; i++) { | |
| 1696 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
| 1697 } | |
| 1698 } | |
| 1699 } | |
| 1700 st->cr(); | |
| 1701 } | |
| 1702 | |
| 1703 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 1704 // do nothing | |
| 1705 } | |
| 1706 | |
| 1707 static char saved_jvm_path[MAX_PATH] = {0}; | |
| 1708 | |
| 1709 // Find the full path to the current module, jvm.dll or jvm_g.dll | |
| 1710 void os::jvm_path(char *buf, jint buflen) { | |
| 1711 // Error checking. | |
| 1712 if (buflen < MAX_PATH) { | |
| 1713 assert(false, "must use a large-enough buffer"); | |
| 1714 buf[0] = '\0'; | |
| 1715 return; | |
| 1716 } | |
| 1717 // Lazy resolve the path to current module. | |
| 1718 if (saved_jvm_path[0] != 0) { | |
| 1719 strcpy(buf, saved_jvm_path); | |
| 1720 return; | |
| 1721 } | |
| 1722 | |
| 1985 | 1723 buf[0] = '\0'; |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
1724 if (Arguments::created_by_gamma_launcher()) { |
| 1985 | 1725 // Support for the gamma launcher. Check for an |
|
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
2023
diff
changeset
|
1726 // JAVA_HOME environment variable |
| 1985 | 1727 // and fix up the path so it looks like |
| 1728 // libjvm.so is installed there (append a fake suffix | |
| 1729 // hotspot/libjvm.so). | |
|
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
2023
diff
changeset
|
1730 char* java_home_var = ::getenv("JAVA_HOME"); |
| 1985 | 1731 if (java_home_var != NULL && java_home_var[0] != 0) { |
| 1732 | |
| 1733 strncpy(buf, java_home_var, buflen); | |
| 1734 | |
| 1735 // determine if this is a legacy image or modules image | |
| 1736 // modules image doesn't have "jre" subdirectory | |
| 1737 size_t len = strlen(buf); | |
| 1738 char* jrebin_p = buf + len; | |
| 1739 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
| 1740 if (0 != _access(buf, 0)) { | |
| 1741 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
| 1742 } | |
| 1743 len = strlen(buf); | |
| 1744 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
| 1745 } | |
| 1746 } | |
| 1747 | |
| 1748 if(buf[0] == '\0') { | |
| 0 | 1749 GetModuleFileName(vm_lib_handle, buf, buflen); |
| 1985 | 1750 } |
| 0 | 1751 strcpy(saved_jvm_path, buf); |
| 1752 } | |
| 1753 | |
| 1754 | |
| 1755 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 1756 #ifndef _WIN64 | |
| 1757 st->print("_"); | |
| 1758 #endif | |
| 1759 } | |
| 1760 | |
| 1761 | |
| 1762 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 1763 #ifndef _WIN64 | |
| 1764 st->print("@%d", args_size * sizeof(int)); | |
| 1765 #endif | |
| 1766 } | |
| 1767 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1768 // This method is a copy of JDK's sysGetLastErrorString |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1769 // from src/windows/hpi/src/system_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1770 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1771 size_t os::lasterror(char *buf, size_t len) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1772 long errval; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1773 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1774 if ((errval = GetLastError()) != 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1775 /* DOS error */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1776 int n = (int)FormatMessage( |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1777 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
|
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1778 NULL, |
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1779 errval, |
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1780 0, |
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1781 buf, |
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1782 (DWORD)len, |
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1783 NULL); |
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1784 if (n > 3) { |
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1785 /* Drop final '.', CR, LF */ |
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1786 if (buf[n - 1] == '\n') n--; |
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1787 if (buf[n - 1] == '\r') n--; |
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1788 if (buf[n - 1] == '.') n--; |
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1789 buf[n] = '\0'; |
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1790 } |
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1791 return n; |
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1792 } |
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1793 |
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1794 if (errno != 0) { |
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1795 /* C runtime error that has no corresponding DOS error code */ |
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1796 const char *s = strerror(errno); |
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1797 size_t n = strlen(s); |
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1798 if (n >= len) n = len - 1; |
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1799 strncpy(buf, s, n); |
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1800 buf[n] = '\0'; |
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1801 return n; |
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1802 } |
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1803 return 0; |
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1804 } |
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1805 |
| 0 | 1806 // sun.misc.Signal |
| 1807 // NOTE that this is a workaround for an apparent kernel bug where if | |
| 1808 // a signal handler for SIGBREAK is installed then that signal handler | |
| 1809 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
| 1810 // See bug 4416763. | |
| 1811 static void (*sigbreakHandler)(int) = NULL; | |
| 1812 | |
| 1813 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 1814 os::signal_notify(sig); | |
| 1815 // We need to reinstate the signal handler each time... | |
| 1816 os::signal(sig, (void*)UserHandler); | |
| 1817 } | |
| 1818 | |
| 1819 void* os::user_handler() { | |
| 1820 return (void*) UserHandler; | |
| 1821 } | |
| 1822 | |
| 1823 void* os::signal(int signal_number, void* handler) { | |
| 1824 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
| 1825 void (*oldHandler)(int) = sigbreakHandler; | |
| 1826 sigbreakHandler = (void (*)(int)) handler; | |
| 1827 return (void*) oldHandler; | |
| 1828 } else { | |
| 1829 return (void*)::signal(signal_number, (void (*)(int))handler); | |
| 1830 } | |
| 1831 } | |
| 1832 | |
| 1833 void os::signal_raise(int signal_number) { | |
| 1834 raise(signal_number); | |
| 1835 } | |
| 1836 | |
| 1837 // The Win32 C runtime library maps all console control events other than ^C | |
| 1838 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
| 1839 // logoff, and shutdown events. We therefore install our own console handler | |
| 1840 // that raises SIGTERM for the latter cases. | |
| 1841 // | |
| 1842 static BOOL WINAPI consoleHandler(DWORD event) { | |
| 1843 switch(event) { | |
| 1844 case CTRL_C_EVENT: | |
| 1845 if (is_error_reported()) { | |
| 1846 // Ctrl-C is pressed during error reporting, likely because the error | |
| 1847 // handler fails to abort. Let VM die immediately. | |
| 1848 os::die(); | |
| 1849 } | |
| 1850 | |
| 1851 os::signal_raise(SIGINT); | |
| 1852 return TRUE; | |
| 1853 break; | |
| 1854 case CTRL_BREAK_EVENT: | |
| 1855 if (sigbreakHandler != NULL) { | |
| 1856 (*sigbreakHandler)(SIGBREAK); | |
| 1857 } | |
| 1858 return TRUE; | |
| 1859 break; | |
| 1860 case CTRL_CLOSE_EVENT: | |
| 1861 case CTRL_LOGOFF_EVENT: | |
| 1862 case CTRL_SHUTDOWN_EVENT: | |
| 1863 os::signal_raise(SIGTERM); | |
| 1864 return TRUE; | |
| 1865 break; | |
| 1866 default: | |
| 1867 break; | |
| 1868 } | |
| 1869 return FALSE; | |
| 1870 } | |
| 1871 | |
| 1872 /* | |
| 1873 * The following code is moved from os.cpp for making this | |
| 1874 * code platform specific, which it is by its very nature. | |
| 1875 */ | |
| 1876 | |
| 1877 // Return maximum OS signal used + 1 for internal use only | |
| 1878 // Used as exit signal for signal_thread | |
| 1879 int os::sigexitnum_pd(){ | |
| 1880 return NSIG; | |
| 1881 } | |
| 1882 | |
| 1883 // a counter for each possible signal value, including signal_thread exit signal | |
| 1884 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
| 1885 static HANDLE sig_sem; | |
| 1886 | |
| 1887 void os::signal_init_pd() { | |
| 1888 // Initialize signal structures | |
| 1889 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
| 1890 | |
| 1891 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
| 1892 | |
| 1893 // Programs embedding the VM do not want it to attempt to receive | |
| 1894 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
| 1895 // shutdown hooks mechanism introduced in 1.3. For example, when | |
| 1896 // the VM is run as part of a Windows NT service (i.e., a servlet | |
| 1897 // engine in a web server), the correct behavior is for any console | |
| 1898 // control handler to return FALSE, not TRUE, because the OS's | |
| 1899 // "final" handler for such events allows the process to continue if | |
| 1900 // it is a service (while terminating it if it is not a service). | |
| 1901 // To make this behavior uniform and the mechanism simpler, we | |
| 1902 // completely disable the VM's usage of these console events if -Xrs | |
| 1903 // (=ReduceSignalUsage) is specified. This means, for example, that | |
| 1904 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
| 1905 // case. See bugs 4323062, 4345157, and related bugs. | |
| 1906 | |
| 1907 if (!ReduceSignalUsage) { | |
| 1908 // Add a CTRL-C handler | |
| 1909 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
| 1910 } | |
| 1911 } | |
| 1912 | |
| 1913 void os::signal_notify(int signal_number) { | |
| 1914 BOOL ret; | |
| 1915 | |
| 1916 Atomic::inc(&pending_signals[signal_number]); | |
| 1917 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 1918 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 1919 } | |
| 1920 | |
| 1921 static int check_pending_signals(bool wait_for_signal) { | |
| 1922 DWORD ret; | |
| 1923 while (true) { | |
| 1924 for (int i = 0; i < NSIG + 1; i++) { | |
| 1925 jint n = pending_signals[i]; | |
| 1926 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 1927 return i; | |
| 1928 } | |
| 1929 } | |
| 1930 if (!wait_for_signal) { | |
| 1931 return -1; | |
| 1932 } | |
| 1933 | |
| 1934 JavaThread *thread = JavaThread::current(); | |
| 1935 | |
| 1936 ThreadBlockInVM tbivm(thread); | |
| 1937 | |
| 1938 bool threadIsSuspended; | |
| 1939 do { | |
| 1940 thread->set_suspend_equivalent(); | |
| 1941 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 1942 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
| 1943 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
| 1944 | |
| 1945 // were we externally suspended while we were waiting? | |
| 1946 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 1947 if (threadIsSuspended) { | |
| 1948 // | |
| 1949 // The semaphore has been incremented, but while we were waiting | |
| 1950 // another thread suspended us. We don't want to continue running | |
| 1951 // while suspended because that would surprise the thread that | |
| 1952 // suspended us. | |
| 1953 // | |
| 1954 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 1955 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 1956 | |
| 1957 thread->java_suspend_self(); | |
| 1958 } | |
| 1959 } while (threadIsSuspended); | |
| 1960 } | |
| 1961 } | |
| 1962 | |
| 1963 int os::signal_lookup() { | |
| 1964 return check_pending_signals(false); | |
| 1965 } | |
| 1966 | |
| 1967 int os::signal_wait() { | |
| 1968 return check_pending_signals(true); | |
| 1969 } | |
| 1970 | |
| 1971 // Implicit OS exception handling | |
| 1972 | |
| 1973 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
| 1974 JavaThread* thread = JavaThread::current(); | |
| 1975 // Save pc in thread | |
| 1976 #ifdef _M_IA64 | |
| 1977 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->StIIP); | |
| 1978 // Set pc to handler | |
| 1979 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
| 1980 #elif _M_AMD64 | |
| 1981 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Rip); | |
| 1982 // Set pc to handler | |
| 1983 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
| 1984 #else | |
| 1985 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Eip); | |
| 1986 // Set pc to handler | |
| 1987 exceptionInfo->ContextRecord->Eip = (LONG)handler; | |
| 1988 #endif | |
| 1989 | |
| 1990 // Continue the execution | |
| 1991 return EXCEPTION_CONTINUE_EXECUTION; | |
| 1992 } | |
| 1993 | |
| 1994 | |
| 1995 // Used for PostMortemDump | |
| 1996 extern "C" void safepoints(); | |
| 1997 extern "C" void find(int x); | |
| 1998 extern "C" void events(); | |
| 1999 | |
| 2000 // According to Windows API documentation, an illegal instruction sequence should generate | |
| 2001 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
| 2002 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
| 2003 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
| 2004 | |
| 2005 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
| 2006 | |
| 2007 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
| 2008 // Once a system header becomes available, the "real" define should be | |
| 2009 // included or copied here. | |
| 2010 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
| 2011 | |
| 2012 #define def_excpt(val) #val, val | |
| 2013 | |
| 2014 struct siglabel { | |
| 2015 char *name; | |
| 2016 int number; | |
| 2017 }; | |
| 2018 | |
|
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2019 // All Visual C++ exceptions thrown from code generated by the Microsoft Visual |
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2020 // C++ compiler contain this error code. Because this is a compiler-generated |
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2021 // error, the code is not listed in the Win32 API header files. |
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2022 // The code is actually a cryptic mnemonic device, with the initial "E" |
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2023 // standing for "exception" and the final 3 bytes (0x6D7363) representing the |
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2024 // ASCII values of "msc". |
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2025 |
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2026 #define EXCEPTION_UNCAUGHT_CXX_EXCEPTION 0xE06D7363 |
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2027 |
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2028 |
| 0 | 2029 struct siglabel exceptlabels[] = { |
| 2030 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
| 2031 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
| 2032 def_excpt(EXCEPTION_BREAKPOINT), | |
| 2033 def_excpt(EXCEPTION_SINGLE_STEP), | |
| 2034 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
| 2035 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
| 2036 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
| 2037 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
| 2038 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
| 2039 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
| 2040 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
| 2041 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
| 2042 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
| 2043 def_excpt(EXCEPTION_INT_OVERFLOW), | |
| 2044 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
| 2045 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
| 2046 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
| 2047 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
| 2048 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
| 2049 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
| 2050 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
| 2051 def_excpt(EXCEPTION_GUARD_PAGE), | |
| 2052 def_excpt(EXCEPTION_INVALID_HANDLE), | |
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2053 def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION), |
| 0 | 2054 NULL, 0 |
| 2055 }; | |
| 2056 | |
| 2057 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
| 2058 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
| 2059 if (exceptlabels[i].number == exception_code) { | |
| 2060 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
| 2061 return buf; | |
| 2062 } | |
| 2063 } | |
| 2064 | |
| 2065 return NULL; | |
| 2066 } | |
| 2067 | |
| 2068 //----------------------------------------------------------------------------- | |
| 2069 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2070 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
| 2071 // (division by zero is handled explicitly) | |
| 2072 #ifdef _M_IA64 | |
| 2073 assert(0, "Fix Handle_IDiv_Exception"); | |
| 2074 #elif _M_AMD64 | |
| 2075 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2076 address pc = (address)ctx->Rip; | |
| 2077 NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc)); | |
| 2078 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2079 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2080 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
| 2081 // set correct result values and continue after idiv instruction | |
| 2082 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2083 ctx->Rax = (DWORD)min_jint; // result | |
| 2084 ctx->Rdx = (DWORD)0; // remainder | |
| 2085 // Continue the execution | |
| 2086 #else | |
| 2087 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2088 address pc = (address)ctx->Eip; | |
| 2089 NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc)); | |
| 2090 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2091 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2092 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
| 2093 // set correct result values and continue after idiv instruction | |
| 2094 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2095 ctx->Eax = (DWORD)min_jint; // result | |
| 2096 ctx->Edx = (DWORD)0; // remainder | |
| 2097 // Continue the execution | |
| 2098 #endif | |
| 2099 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2100 } | |
| 2101 | |
| 2102 #ifndef _WIN64 | |
| 2103 //----------------------------------------------------------------------------- | |
| 2104 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
|
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2105 // handle exception caused by native method modifying control word |
| 0 | 2106 PCONTEXT ctx = exceptionInfo->ContextRecord; |
| 2107 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2108 | |
| 2109 switch (exception_code) { | |
| 2110 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
| 2111 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
| 2112 case EXCEPTION_FLT_INEXACT_RESULT: | |
| 2113 case EXCEPTION_FLT_INVALID_OPERATION: | |
| 2114 case EXCEPTION_FLT_OVERFLOW: | |
| 2115 case EXCEPTION_FLT_STACK_CHECK: | |
| 2116 case EXCEPTION_FLT_UNDERFLOW: | |
| 2117 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
| 2118 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
| 2119 // Restore FPCW and mask out FLT exceptions | |
| 2120 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
| 2121 // Mask out pending FLT exceptions | |
| 2122 ctx->FloatSave.StatusWord &= 0xffffff00; | |
| 2123 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2124 } | |
| 2125 } | |
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2126 |
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2127 if (prev_uef_handler != NULL) { |
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2128 // We didn't handle this exception so pass it to the previous |
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2129 // UnhandledExceptionFilter. |
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2130 return (prev_uef_handler)(exceptionInfo); |
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2131 } |
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2132 |
| 0 | 2133 return EXCEPTION_CONTINUE_SEARCH; |
| 2134 } | |
| 2135 #else //_WIN64 | |
| 2136 /* | |
| 2137 On Windows, the mxcsr control bits are non-volatile across calls | |
| 2138 See also CR 6192333 | |
| 2139 If EXCEPTION_FLT_* happened after some native method modified | |
| 2140 mxcsr - it is not a jvm fault. | |
| 2141 However should we decide to restore of mxcsr after a faulty | |
| 2142 native method we can uncomment following code | |
| 2143 jint MxCsr = INITIAL_MXCSR; | |
| 2144 // we can't use StubRoutines::addr_mxcsr_std() | |
| 2145 // because in Win64 mxcsr is not saved there | |
| 2146 if (MxCsr != ctx->MxCsr) { | |
| 2147 ctx->MxCsr = MxCsr; | |
| 2148 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2149 } | |
| 2150 | |
| 2151 */ | |
| 2152 #endif //_WIN64 | |
| 2153 | |
| 2154 | |
| 2155 // Fatal error reporting is single threaded so we can make this a | |
| 2156 // static and preallocated. If it's more than MAX_PATH silently ignore | |
| 2157 // it. | |
| 2158 static char saved_error_file[MAX_PATH] = {0}; | |
| 2159 | |
| 2160 void os::set_error_file(const char *logfile) { | |
| 2161 if (strlen(logfile) <= MAX_PATH) { | |
| 2162 strncpy(saved_error_file, logfile, MAX_PATH); | |
| 2163 } | |
| 2164 } | |
| 2165 | |
| 2166 static inline void report_error(Thread* t, DWORD exception_code, | |
| 2167 address addr, void* siginfo, void* context) { | |
| 2168 VMError err(t, exception_code, addr, siginfo, context); | |
| 2169 err.report_and_die(); | |
| 2170 | |
| 2171 // If UseOsErrorReporting, this will return here and save the error file | |
| 2172 // somewhere where we can find it in the minidump. | |
| 2173 } | |
| 2174 | |
| 2175 //----------------------------------------------------------------------------- | |
| 2176 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2177 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
| 2178 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2179 #ifdef _M_IA64 | |
| 2180 address pc = (address) exceptionInfo->ContextRecord->StIIP; | |
| 2181 #elif _M_AMD64 | |
| 2182 address pc = (address) exceptionInfo->ContextRecord->Rip; | |
| 2183 #else | |
| 2184 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2185 #endif | |
| 2186 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
| 2187 | |
| 2188 #ifndef _WIN64 | |
| 2189 // Execution protection violation - win32 running on AMD64 only | |
| 2190 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
| 2191 // This is safe to do because we have a new/unique ExceptionInformation | |
| 2192 // code for this condition. | |
| 2193 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2194 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2195 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
| 2196 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2197 | |
| 2198 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 2199 int page_size = os::vm_page_size(); | |
| 2200 | |
| 2201 // Make sure the pc and the faulting address are sane. | |
| 2202 // | |
| 2203 // If an instruction spans a page boundary, and the page containing | |
| 2204 // the beginning of the instruction is executable but the following | |
| 2205 // page is not, the pc and the faulting address might be slightly | |
| 2206 // different - we still want to unguard the 2nd page in this case. | |
| 2207 // | |
| 2208 // 15 bytes seems to be a (very) safe value for max instruction size. | |
| 2209 bool pc_is_near_addr = | |
| 2210 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
| 2211 bool instr_spans_page_boundary = | |
| 2212 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
| 2213 (intptr_t) page_size) > 0); | |
| 2214 | |
| 2215 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
| 2216 static volatile address last_addr = | |
| 2217 (address) os::non_memory_address_word(); | |
| 2218 | |
| 2219 // In conservative mode, don't unguard unless the address is in the VM | |
| 2220 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
| 2221 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
| 2222 | |
|
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2223 // Set memory to RWX and retry |
| 0 | 2224 address page_start = |
| 2225 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
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2226 bool res = os::protect_memory((char*) page_start, page_size, |
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2227 os::MEM_PROT_RWX); |
| 0 | 2228 |
| 2229 if (PrintMiscellaneous && Verbose) { | |
| 2230 char buf[256]; | |
| 2231 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
| 2232 "at " INTPTR_FORMAT | |
| 2233 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
| 2234 page_start, (res ? "success" : strerror(errno))); | |
| 2235 tty->print_raw_cr(buf); | |
| 2236 } | |
| 2237 | |
| 2238 // Set last_addr so if we fault again at the same address, we don't | |
| 2239 // end up in an endless loop. | |
| 2240 // | |
| 2241 // There are two potential complications here. Two threads trapping | |
| 2242 // at the same address at the same time could cause one of the | |
| 2243 // threads to think it already unguarded, and abort the VM. Likely | |
| 2244 // very rare. | |
| 2245 // | |
| 2246 // The other race involves two threads alternately trapping at | |
| 2247 // different addresses and failing to unguard the page, resulting in | |
| 2248 // an endless loop. This condition is probably even more unlikely | |
| 2249 // than the first. | |
| 2250 // | |
| 2251 // Although both cases could be avoided by using locks or thread | |
| 2252 // local last_addr, these solutions are unnecessary complication: | |
| 2253 // this handler is a best-effort safety net, not a complete solution. | |
| 2254 // It is disabled by default and should only be used as a workaround | |
| 2255 // in case we missed any no-execute-unsafe VM code. | |
| 2256 | |
| 2257 last_addr = addr; | |
| 2258 | |
| 2259 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2260 } | |
| 2261 } | |
| 2262 | |
| 2263 // Last unguard failed or not unguarding | |
| 2264 tty->print_raw_cr("Execution protection violation"); | |
| 2265 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
| 2266 exceptionInfo->ContextRecord); | |
| 2267 return EXCEPTION_CONTINUE_SEARCH; | |
| 2268 } | |
| 2269 } | |
| 2270 #endif // _WIN64 | |
| 2271 | |
| 2272 // Check to see if we caught the safepoint code in the | |
| 2273 // process of write protecting the memory serialization page. | |
| 2274 // It write enables the page immediately after protecting it | |
| 2275 // so just return. | |
| 2276 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 2277 JavaThread* thread = (JavaThread*) t; | |
| 2278 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2279 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2280 if ( os::is_memory_serialize_page(thread, addr) ) { | |
| 2281 // Block current thread until the memory serialize page permission restored. | |
| 2282 os::block_on_serialize_page_trap(); | |
| 2283 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2284 } | |
| 2285 } | |
| 2286 | |
| 2287 if (t != NULL && t->is_Java_thread()) { | |
| 2288 JavaThread* thread = (JavaThread*) t; | |
| 2289 bool in_java = thread->thread_state() == _thread_in_Java; | |
| 2290 | |
| 2291 // Handle potential stack overflows up front. | |
| 2292 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
| 2293 if (os::uses_stack_guard_pages()) { | |
| 2294 #ifdef _M_IA64 | |
| 2295 // | |
| 2296 // If it's a legal stack address continue, Windows will map it in. | |
| 2297 // | |
| 2298 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2299 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2300 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) | |
| 2301 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2302 | |
| 2303 // The register save area is the same size as the memory stack | |
| 2304 // and starts at the page just above the start of the memory stack. | |
| 2305 // If we get a fault in this area, we've run out of register | |
| 2306 // stack. If we are in java, try throwing a stack overflow exception. | |
| 2307 if (addr > thread->stack_base() && | |
| 2308 addr <= (thread->stack_base()+thread->stack_size()) ) { | |
| 2309 char buf[256]; | |
| 2310 jio_snprintf(buf, sizeof(buf), | |
| 2311 "Register stack overflow, addr:%p, stack_base:%p\n", | |
| 2312 addr, thread->stack_base() ); | |
| 2313 tty->print_raw_cr(buf); | |
| 2314 // If not in java code, return and hope for the best. | |
| 2315 return in_java ? Handle_Exception(exceptionInfo, | |
| 2316 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2317 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2318 } | |
| 2319 #endif | |
| 2320 if (thread->stack_yellow_zone_enabled()) { | |
| 2321 // Yellow zone violation. The o/s has unprotected the first yellow | |
| 2322 // zone page for us. Note: must call disable_stack_yellow_zone to | |
| 2323 // update the enabled status, even if the zone contains only one page. | |
| 2324 thread->disable_stack_yellow_zone(); | |
| 2325 // If not in java code, return and hope for the best. | |
| 2326 return in_java ? Handle_Exception(exceptionInfo, | |
| 2327 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2328 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2329 } else { | |
| 2330 // Fatal red zone violation. | |
| 2331 thread->disable_stack_red_zone(); | |
| 2332 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
| 2333 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2334 exceptionInfo->ContextRecord); | |
| 2335 return EXCEPTION_CONTINUE_SEARCH; | |
| 2336 } | |
| 2337 } else if (in_java) { | |
| 2338 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
| 2339 // a one-time-only guard page, which it has released to us. The next | |
| 2340 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
| 2341 return Handle_Exception(exceptionInfo, | |
| 2342 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2343 } else { | |
| 2344 // Can only return and hope for the best. Further stack growth will | |
| 2345 // result in an ACCESS_VIOLATION. | |
| 2346 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2347 } | |
| 2348 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2349 // Either stack overflow or null pointer exception. | |
| 2350 if (in_java) { | |
| 2351 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2352 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2353 address stack_end = thread->stack_base() - thread->stack_size(); | |
| 2354 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
| 2355 // Stack overflow. | |
| 2356 assert(!os::uses_stack_guard_pages(), | |
| 2357 "should be caught by red zone code above."); | |
| 2358 return Handle_Exception(exceptionInfo, | |
| 2359 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2360 } | |
| 2361 // | |
| 2362 // Check for safepoint polling and implicit null | |
| 2363 // We only expect null pointers in the stubs (vtable) | |
| 2364 // the rest are checked explicitly now. | |
| 2365 // | |
| 2366 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2367 if (cb != NULL) { | |
| 2368 if (os::is_poll_address(addr)) { | |
| 2369 address stub = SharedRuntime::get_poll_stub(pc); | |
| 2370 return Handle_Exception(exceptionInfo, stub); | |
| 2371 } | |
| 2372 } | |
| 2373 { | |
| 2374 #ifdef _WIN64 | |
| 2375 // | |
| 2376 // If it's a legal stack address map the entire region in | |
| 2377 // | |
| 2378 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2379 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2380 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
| 2381 addr = (address)((uintptr_t)addr & | |
| 2382 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
| 656 | 2383 os::commit_memory((char *)addr, thread->stack_base() - addr, |
| 2384 false ); | |
| 0 | 2385 return EXCEPTION_CONTINUE_EXECUTION; |
| 2386 } | |
| 2387 else | |
| 2388 #endif | |
| 2389 { | |
| 2390 // Null pointer exception. | |
| 2391 #ifdef _M_IA64 | |
| 2392 // We catch register stack overflows in compiled code by doing | |
| 2393 // an explicit compare and executing a st8(G0, G0) if the | |
| 2394 // BSP enters into our guard area. We test for the overflow | |
| 2395 // condition and fall into the normal null pointer exception | |
| 2396 // code if BSP hasn't overflowed. | |
| 2397 if ( in_java ) { | |
| 2398 if(thread->register_stack_overflow()) { | |
| 2399 assert((address)exceptionInfo->ContextRecord->IntS3 == | |
| 2400 thread->register_stack_limit(), | |
| 2401 "GR7 doesn't contain register_stack_limit"); | |
| 2402 // Disable the yellow zone which sets the state that | |
| 2403 // we've got a stack overflow problem. | |
| 2404 if (thread->stack_yellow_zone_enabled()) { | |
| 2405 thread->disable_stack_yellow_zone(); | |
| 2406 } | |
| 2407 // Give us some room to process the exception | |
| 2408 thread->disable_register_stack_guard(); | |
| 2409 // Update GR7 with the new limit so we can continue running | |
| 2410 // compiled code. | |
| 2411 exceptionInfo->ContextRecord->IntS3 = | |
| 2412 (ULONGLONG)thread->register_stack_limit(); | |
| 2413 return Handle_Exception(exceptionInfo, | |
| 2414 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2415 } else { | |
| 2416 // | |
| 2417 // Check for implicit null | |
| 2418 // We only expect null pointers in the stubs (vtable) | |
| 2419 // the rest are checked explicitly now. | |
| 2420 // | |
|
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2421 if (((uintptr_t)addr) < os::vm_page_size() ) { |
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2422 // an access to the first page of VM--assume it is a null pointer |
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2423 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2424 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2425 } |
| 2426 } | |
| 2427 } // in_java | |
| 2428 | |
| 2429 // IA64 doesn't use implicit null checking yet. So we shouldn't | |
| 2430 // get here. | |
| 2431 tty->print_raw_cr("Access violation, possible null pointer exception"); | |
| 2432 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2433 exceptionInfo->ContextRecord); | |
| 2434 return EXCEPTION_CONTINUE_SEARCH; | |
| 2435 #else /* !IA64 */ | |
| 2436 | |
| 2437 // Windows 98 reports faulting addresses incorrectly | |
| 2438 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
| 2439 !os::win32::is_nt()) { | |
|
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2440 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2441 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2442 } |
| 2443 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2444 exceptionInfo->ContextRecord); | |
| 2445 return EXCEPTION_CONTINUE_SEARCH; | |
| 2446 #endif | |
| 2447 } | |
| 2448 } | |
| 2449 } | |
| 2450 | |
| 2451 #ifdef _WIN64 | |
| 2452 // Special care for fast JNI field accessors. | |
| 2453 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
| 2454 // in and the heap gets shrunk before the field access. | |
| 2455 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2456 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2457 if (addr != (address)-1) { | |
| 2458 return Handle_Exception(exceptionInfo, addr); | |
| 2459 } | |
| 2460 } | |
| 2461 #endif | |
| 2462 | |
| 2463 #ifdef _WIN64 | |
| 2464 // Windows will sometimes generate an access violation | |
| 2465 // when we call malloc. Since we use VectoredExceptions | |
| 2466 // on 64 bit platforms, we see this exception. We must | |
| 2467 // pass this exception on so Windows can recover. | |
| 2468 // We check to see if the pc of the fault is in NTDLL.DLL | |
| 2469 // if so, we pass control on to Windows for handling. | |
| 2470 if (UseVectoredExceptions && _addr_in_ntdll(pc)) return EXCEPTION_CONTINUE_SEARCH; | |
| 2471 #endif | |
| 2472 | |
| 2473 // Stack overflow or null pointer exception in native code. | |
| 2474 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2475 exceptionInfo->ContextRecord); | |
| 2476 return EXCEPTION_CONTINUE_SEARCH; | |
| 2477 } | |
| 2478 | |
| 2479 if (in_java) { | |
| 2480 switch (exception_code) { | |
| 2481 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
| 2482 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
| 2483 | |
| 2484 case EXCEPTION_INT_OVERFLOW: | |
| 2485 return Handle_IDiv_Exception(exceptionInfo); | |
| 2486 | |
| 2487 } // switch | |
| 2488 } | |
| 2489 #ifndef _WIN64 | |
|
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2490 if (((thread->thread_state() == _thread_in_Java) || |
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2491 (thread->thread_state() == _thread_in_native)) && |
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2492 exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION) |
| 0 | 2493 { |
| 2494 LONG result=Handle_FLT_Exception(exceptionInfo); | |
| 2495 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
| 2496 } | |
| 2497 #endif //_WIN64 | |
| 2498 } | |
| 2499 | |
| 2500 if (exception_code != EXCEPTION_BREAKPOINT) { | |
| 2501 #ifndef _WIN64 | |
| 2502 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2503 exceptionInfo->ContextRecord); | |
| 2504 #else | |
| 2505 // Itanium Windows uses a VectoredExceptionHandler | |
| 2506 // Which means that C++ programatic exception handlers (try/except) | |
| 2507 // will get here. Continue the search for the right except block if | |
| 2508 // the exception code is not a fatal code. | |
| 2509 switch ( exception_code ) { | |
| 2510 case EXCEPTION_ACCESS_VIOLATION: | |
| 2511 case EXCEPTION_STACK_OVERFLOW: | |
| 2512 case EXCEPTION_ILLEGAL_INSTRUCTION: | |
| 2513 case EXCEPTION_ILLEGAL_INSTRUCTION_2: | |
| 2514 case EXCEPTION_INT_OVERFLOW: | |
| 2515 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
|
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2516 case EXCEPTION_UNCAUGHT_CXX_EXCEPTION: |
| 0 | 2517 { report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, |
| 2518 exceptionInfo->ContextRecord); | |
| 2519 } | |
| 2520 break; | |
| 2521 default: | |
| 2522 break; | |
| 2523 } | |
| 2524 #endif | |
| 2525 } | |
| 2526 return EXCEPTION_CONTINUE_SEARCH; | |
| 2527 } | |
| 2528 | |
| 2529 #ifndef _WIN64 | |
| 2530 // Special care for fast JNI accessors. | |
| 2531 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
| 2532 // the heap gets shrunk before the field access. | |
| 2533 // Need to install our own structured exception handler since native code may | |
| 2534 // install its own. | |
| 2535 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2536 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2537 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2538 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2539 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2540 if (addr != (address)-1) { | |
| 2541 return Handle_Exception(exceptionInfo, addr); | |
| 2542 } | |
| 2543 } | |
| 2544 return EXCEPTION_CONTINUE_SEARCH; | |
| 2545 } | |
| 2546 | |
| 2547 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
| 2548 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
| 2549 __try { \ | |
| 2550 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
| 2551 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
| 2552 } \ | |
| 2553 return 0; \ | |
| 2554 } | |
| 2555 | |
| 2556 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
| 2557 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
| 2558 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
| 2559 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
| 2560 DEFINE_FAST_GETFIELD(jint, int, Int) | |
| 2561 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
| 2562 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
| 2563 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
| 2564 | |
| 2565 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
| 2566 switch (type) { | |
| 2567 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
| 2568 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
| 2569 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
| 2570 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
| 2571 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
| 2572 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
| 2573 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
| 2574 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
| 2575 default: ShouldNotReachHere(); | |
| 2576 } | |
| 2577 return (address)-1; | |
| 2578 } | |
| 2579 #endif | |
| 2580 | |
| 2581 // Virtual Memory | |
| 2582 | |
| 2583 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
| 2584 int os::vm_allocation_granularity() { | |
| 2585 return os::win32::vm_allocation_granularity(); | |
| 2586 } | |
| 2587 | |
| 2588 // Windows large page support is available on Windows 2003. In order to use | |
| 2589 // large page memory, the administrator must first assign additional privilege | |
| 2590 // to the user: | |
| 2591 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
| 2592 // + select Local Policies -> User Rights Assignment | |
| 2593 // + double click "Lock pages in memory", add users and/or groups | |
| 2594 // + reboot | |
| 2595 // Note the above steps are needed for administrator as well, as administrators | |
| 2596 // by default do not have the privilege to lock pages in memory. | |
| 2597 // | |
| 2598 // Note about Windows 2003: although the API supports committing large page | |
| 2599 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
| 2600 // scenario, I found through experiment it only uses large page if the entire | |
| 2601 // memory region is reserved and committed in a single VirtualAlloc() call. | |
| 2602 // This makes Windows large page support more or less like Solaris ISM, in | |
| 2603 // that the entire heap must be committed upfront. This probably will change | |
| 2604 // in the future, if so the code below needs to be revisited. | |
| 2605 | |
| 2606 #ifndef MEM_LARGE_PAGES | |
| 2607 #define MEM_LARGE_PAGES 0x20000000 | |
| 2608 #endif | |
| 2609 | |
| 2610 static HANDLE _hProcess; | |
| 2611 static HANDLE _hToken; | |
| 2612 | |
| 2613 static size_t _large_page_size = 0; | |
| 2614 | |
| 2615 static bool resolve_functions_for_large_page_init() { | |
|
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2616 return os::Kernel32Dll::GetLargePageMinimumAvailable() && |
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2617 os::Advapi32Dll::AdvapiAvailable(); |
| 0 | 2618 } |
| 2619 | |
| 2620 static bool request_lock_memory_privilege() { | |
| 2621 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
| 2622 os::current_process_id()); | |
| 2623 | |
| 2624 LUID luid; | |
| 2625 if (_hProcess != NULL && | |
|
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2626 os::Advapi32Dll::OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && |
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2627 os::Advapi32Dll::LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { |
| 0 | 2628 |
| 2629 TOKEN_PRIVILEGES tp; | |
| 2630 tp.PrivilegeCount = 1; | |
| 2631 tp.Privileges[0].Luid = luid; | |
| 2632 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
| 2633 | |
| 2634 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
| 2635 // privilege. Check GetLastError() too. See MSDN document. | |
|
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2636 if (os::Advapi32Dll::AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && |
| 0 | 2637 (GetLastError() == ERROR_SUCCESS)) { |
| 2638 return true; | |
| 2639 } | |
| 2640 } | |
| 2641 | |
| 2642 return false; | |
| 2643 } | |
| 2644 | |
| 2645 static void cleanup_after_large_page_init() { | |
| 2646 if (_hProcess) CloseHandle(_hProcess); | |
| 2647 _hProcess = NULL; | |
| 2648 if (_hToken) CloseHandle(_hToken); | |
| 2649 _hToken = NULL; | |
| 2650 } | |
| 2651 | |
| 2652 bool os::large_page_init() { | |
| 2653 if (!UseLargePages) return false; | |
| 2654 | |
| 2655 // print a warning if any large page related flag is specified on command line | |
| 2656 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
| 2657 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
| 2658 bool success = false; | |
| 2659 | |
| 2660 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
| 2661 if (resolve_functions_for_large_page_init()) { | |
| 2662 if (request_lock_memory_privilege()) { | |
|
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2663 size_t s = os::Kernel32Dll::GetLargePageMinimum(); |
| 0 | 2664 if (s) { |
| 2665 #if defined(IA32) || defined(AMD64) | |
| 2666 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
| 2667 WARN("JVM cannot use large pages bigger than 4mb."); | |
| 2668 } else { | |
| 2669 #endif | |
| 2670 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
| 2671 _large_page_size = LargePageSizeInBytes; | |
| 2672 } else { | |
| 2673 _large_page_size = s; | |
| 2674 } | |
| 2675 success = true; | |
| 2676 #if defined(IA32) || defined(AMD64) | |
| 2677 } | |
| 2678 #endif | |
| 2679 } else { | |
| 2680 WARN("Large page is not supported by the processor."); | |
| 2681 } | |
| 2682 } else { | |
| 2683 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
| 2684 } | |
| 2685 } else { | |
| 2686 WARN("Large page is not supported by the operating system."); | |
| 2687 } | |
| 2688 #undef WARN | |
| 2689 | |
| 2690 const size_t default_page_size = (size_t) vm_page_size(); | |
| 2691 if (success && _large_page_size > default_page_size) { | |
| 2692 _page_sizes[0] = _large_page_size; | |
| 2693 _page_sizes[1] = default_page_size; | |
| 2694 _page_sizes[2] = 0; | |
| 2695 } | |
| 2696 | |
| 2697 cleanup_after_large_page_init(); | |
| 2698 return success; | |
| 2699 } | |
| 2700 | |
| 2701 // On win32, one cannot release just a part of reserved memory, it's an | |
| 2702 // all or nothing deal. When we split a reservation, we must break the | |
| 2703 // reservation into two reservations. | |
| 2704 void os::split_reserved_memory(char *base, size_t size, size_t split, | |
| 2705 bool realloc) { | |
| 2706 if (size > 0) { | |
| 2707 release_memory(base, size); | |
| 2708 if (realloc) { | |
| 2709 reserve_memory(split, base); | |
| 2710 } | |
| 2711 if (size != split) { | |
| 2712 reserve_memory(size - split, base + split); | |
| 2713 } | |
| 2714 } | |
| 2715 } | |
| 2716 | |
| 2717 char* os::reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { | |
| 2718 assert((size_t)addr % os::vm_allocation_granularity() == 0, | |
| 2719 "reserve alignment"); | |
| 2720 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
| 656 | 2721 char* res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); |
| 0 | 2722 assert(res == NULL || addr == NULL || addr == res, |
| 2723 "Unexpected address from reserve."); | |
| 2724 return res; | |
| 2725 } | |
| 2726 | |
| 2727 // Reserve memory at an arbitrary address, only if that area is | |
| 2728 // available (and not reserved for something else). | |
| 2729 char* os::attempt_reserve_memory_at(size_t bytes, char* requested_addr) { | |
| 2730 // Windows os::reserve_memory() fails of the requested address range is | |
| 2731 // not avilable. | |
| 2732 return reserve_memory(bytes, requested_addr); | |
| 2733 } | |
| 2734 | |
| 2735 size_t os::large_page_size() { | |
| 2736 return _large_page_size; | |
| 2737 } | |
| 2738 | |
| 2739 bool os::can_commit_large_page_memory() { | |
| 2740 // Windows only uses large page memory when the entire region is reserved | |
| 2741 // and committed in a single VirtualAlloc() call. This may change in the | |
| 2742 // future, but with Windows 2003 it's not possible to commit on demand. | |
| 2743 return false; | |
| 2744 } | |
| 2745 | |
|
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2746 bool os::can_execute_large_page_memory() { |
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2747 return true; |
|
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2748 } |
|
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2749 |
| 656 | 2750 char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) { |
|
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2751 |
| 717 | 2752 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
|
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2753 |
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2754 if (UseLargePagesIndividualAllocation) { |
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2755 if (TracePageSizes && Verbose) { |
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2756 tty->print_cr("Reserving large pages individually."); |
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2757 } |
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2758 char * p_buf; |
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2759 // first reserve enough address space in advance since we want to be |
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2760 // able to break a single contiguous virtual address range into multiple |
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2761 // large page commits but WS2003 does not allow reserving large page space |
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2762 // so we just use 4K pages for reserve, this gives us a legal contiguous |
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2763 // address space. then we will deallocate that reservation, and re alloc |
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2764 // using large pages |
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2765 const size_t size_of_reserve = bytes + _large_page_size; |
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2766 if (bytes > size_of_reserve) { |
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2767 // Overflowed. |
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2768 warning("Individually allocated large pages failed, " |
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2769 "use -XX:-UseLargePagesIndividualAllocation to turn off"); |
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2770 return NULL; |
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2771 } |
|
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2772 p_buf = (char *) VirtualAlloc(addr, |
|
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2773 size_of_reserve, // size of Reserve |
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2774 MEM_RESERVE, |
| 656 | 2775 PAGE_READWRITE); |
|
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2776 // If reservation failed, return NULL |
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2777 if (p_buf == NULL) return NULL; |
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2778 |
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2779 release_memory(p_buf, bytes + _large_page_size); |
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2780 // round up to page boundary. If the size_of_reserve did not |
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2781 // overflow and the reservation did not fail, this align up |
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2782 // should not overflow. |
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2783 p_buf = (char *) align_size_up((size_t)p_buf, _large_page_size); |
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2784 |
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2785 // now go through and allocate one page at a time until all bytes are |
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2786 // allocated |
|
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2787 size_t bytes_remaining = align_size_up(bytes, _large_page_size); |
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2788 // An overflow of align_size_up() would have been caught above |
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2789 // in the calculation of size_of_reserve. |
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2790 char * next_alloc_addr = p_buf; |
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2791 |
|
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2792 #ifdef ASSERT |
|
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2793 // Variable for the failure injection |
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2794 long ran_num = os::random(); |
|
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2795 size_t fail_after = ran_num % bytes; |
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2796 #endif |
|
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2797 |
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2798 while (bytes_remaining) { |
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2799 size_t bytes_to_rq = MIN2(bytes_remaining, _large_page_size); |
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2800 // Note allocate and commit |
|
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2801 char * p_new; |
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2802 |
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2803 #ifdef ASSERT |
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2804 bool inject_error = LargePagesIndividualAllocationInjectError && |
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2805 (bytes_remaining <= fail_after); |
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2806 #else |
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2807 const bool inject_error = false; |
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2808 #endif |
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2809 |
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2810 if (inject_error) { |
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2811 p_new = NULL; |
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2812 } else { |
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2813 p_new = (char *) VirtualAlloc(next_alloc_addr, |
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2814 bytes_to_rq, |
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2815 MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES, |
| 717 | 2816 prot); |
|
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2817 } |
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2818 |
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2819 if (p_new == NULL) { |
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2820 // Free any allocated pages |
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2821 if (next_alloc_addr > p_buf) { |
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2822 // Some memory was committed so release it. |
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2823 size_t bytes_to_release = bytes - bytes_remaining; |
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2824 release_memory(p_buf, bytes_to_release); |
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2825 } |
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2826 #ifdef ASSERT |
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2827 if (UseLargePagesIndividualAllocation && |
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2828 LargePagesIndividualAllocationInjectError) { |
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2829 if (TracePageSizes && Verbose) { |
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2830 tty->print_cr("Reserving large pages individually failed."); |
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2831 } |
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2832 } |
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2833 #endif |
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2834 return NULL; |
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2835 } |
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2836 bytes_remaining -= bytes_to_rq; |
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2837 next_alloc_addr += bytes_to_rq; |
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2838 } |
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2839 |
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2840 return p_buf; |
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2841 |
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2842 } else { |
|
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2843 // normal policy just allocate it all at once |
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2844 DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 717 | 2845 char * res = (char *)VirtualAlloc(NULL, bytes, flag, prot); |
|
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2846 return res; |
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2847 } |
| 0 | 2848 } |
| 2849 | |
| 2850 bool os::release_memory_special(char* base, size_t bytes) { | |
| 2851 return release_memory(base, bytes); | |
| 2852 } | |
| 2853 | |
| 2854 void os::print_statistics() { | |
| 2855 } | |
| 2856 | |
| 656 | 2857 bool os::commit_memory(char* addr, size_t bytes, bool exec) { |
| 0 | 2858 if (bytes == 0) { |
| 2859 // Don't bother the OS with noops. | |
| 2860 return true; | |
| 2861 } | |
| 2862 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
| 2863 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
| 2864 // Don't attempt to print anything if the OS call fails. We're | |
| 2865 // probably low on resources, so the print itself may cause crashes. | |
| 656 | 2866 bool result = VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) != 0; |
| 2867 if (result != NULL && exec) { | |
| 2868 DWORD oldprot; | |
| 2869 // Windows doc says to use VirtualProtect to get execute permissions | |
| 2870 return VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot) != 0; | |
| 2871 } else { | |
| 2872 return result; | |
| 2873 } | |
| 0 | 2874 } |
| 2875 | |
| 656 | 2876 bool os::commit_memory(char* addr, size_t size, size_t alignment_hint, |
| 2877 bool exec) { | |
| 2878 return commit_memory(addr, size, exec); | |
| 0 | 2879 } |
| 2880 | |
| 2881 bool os::uncommit_memory(char* addr, size_t bytes) { | |
| 2882 if (bytes == 0) { | |
| 2883 // Don't bother the OS with noops. | |
| 2884 return true; | |
| 2885 } | |
| 2886 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
| 2887 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
| 2888 return VirtualFree(addr, bytes, MEM_DECOMMIT) != 0; | |
| 2889 } | |
| 2890 | |
| 2891 bool os::release_memory(char* addr, size_t bytes) { | |
| 2892 return VirtualFree(addr, 0, MEM_RELEASE) != 0; | |
| 2893 } | |
| 2894 | |
|
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2895 bool os::create_stack_guard_pages(char* addr, size_t size) { |
|
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2896 return os::commit_memory(addr, size); |
|
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2897 } |
|
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2898 |
|
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2899 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
|
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2900 return os::uncommit_memory(addr, size); |
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2901 } |
|
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2902 |
|
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2903 // Set protections specified |
|
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2904 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
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2905 bool is_committed) { |
|
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2906 unsigned int p = 0; |
|
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2907 switch (prot) { |
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2908 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
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2909 case MEM_PROT_READ: p = PAGE_READONLY; break; |
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2910 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
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2911 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
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2912 default: |
|
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2913 ShouldNotReachHere(); |
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2914 } |
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2915 |
| 0 | 2916 DWORD old_status; |
|
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2917 |
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2918 // Strange enough, but on Win32 one can change protection only for committed |
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2919 // memory, not a big deal anyway, as bytes less or equal than 64K |
| 656 | 2920 if (!is_committed && !commit_memory(addr, bytes, prot == MEM_PROT_RWX)) { |
|
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2921 fatal("cannot commit protection page"); |
|
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2922 } |
|
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2923 // One cannot use os::guard_memory() here, as on Win32 guard page |
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2924 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
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2925 // |
|
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2926 // Pages in the region become guard pages. Any attempt to access a guard page |
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2927 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
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2928 // the guard page status. Guard pages thus act as a one-time access alarm. |
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2929 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
| 0 | 2930 } |
| 2931 | |
| 2932 bool os::guard_memory(char* addr, size_t bytes) { | |
| 2933 DWORD old_status; | |
|
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2934 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
| 0 | 2935 } |
| 2936 | |
| 2937 bool os::unguard_memory(char* addr, size_t bytes) { | |
| 2938 DWORD old_status; | |
|
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2939 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
| 0 | 2940 } |
| 2941 | |
| 2942 void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
| 2943 void os::free_memory(char *addr, size_t bytes) { } | |
| 2944 void os::numa_make_global(char *addr, size_t bytes) { } | |
| 141 | 2945 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
| 0 | 2946 bool os::numa_topology_changed() { return false; } |
| 2947 size_t os::numa_get_groups_num() { return 1; } | |
| 2948 int os::numa_get_group_id() { return 0; } | |
| 2949 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
| 2950 if (size > 0) { | |
| 2951 ids[0] = 0; | |
| 2952 return 1; | |
| 2953 } | |
| 2954 return 0; | |
| 2955 } | |
| 2956 | |
| 2957 bool os::get_page_info(char *start, page_info* info) { | |
| 2958 return false; | |
| 2959 } | |
| 2960 | |
| 2961 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 2962 return end; | |
| 2963 } | |
| 2964 | |
| 2965 char* os::non_memory_address_word() { | |
| 2966 // Must never look like an address returned by reserve_memory, | |
| 2967 // even in its subfields (as defined by the CPU immediate fields, | |
| 2968 // if the CPU splits constants across multiple instructions). | |
| 2969 return (char*)-1; | |
| 2970 } | |
| 2971 | |
| 2972 #define MAX_ERROR_COUNT 100 | |
| 2973 #define SYS_THREAD_ERROR 0xffffffffUL | |
| 2974 | |
| 2975 void os::pd_start_thread(Thread* thread) { | |
| 2976 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
| 2977 // Returns previous suspend state: | |
| 2978 // 0: Thread was not suspended | |
| 2979 // 1: Thread is running now | |
| 2980 // >1: Thread is still suspended. | |
| 2981 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
| 2982 } | |
| 2983 | |
| 2984 class HighResolutionInterval { | |
| 2985 // The default timer resolution seems to be 10 milliseconds. | |
| 2986 // (Where is this written down?) | |
| 2987 // If someone wants to sleep for only a fraction of the default, | |
| 2988 // then we set the timer resolution down to 1 millisecond for | |
| 2989 // the duration of their interval. | |
| 2990 // We carefully set the resolution back, since otherwise we | |
| 2991 // seem to incur an overhead (3%?) that we don't need. | |
| 2992 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
| 2993 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
| 2994 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
| 2995 // timeBeginPeriod() if the relative error exceeded some threshold. | |
| 2996 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
| 2997 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
| 2998 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
| 2999 // resolution timers running. | |
| 3000 private: | |
| 3001 jlong resolution; | |
| 3002 public: | |
| 3003 HighResolutionInterval(jlong ms) { | |
| 3004 resolution = ms % 10L; | |
| 3005 if (resolution != 0) { | |
| 3006 MMRESULT result = timeBeginPeriod(1L); | |
| 3007 } | |
| 3008 } | |
| 3009 ~HighResolutionInterval() { | |
| 3010 if (resolution != 0) { | |
| 3011 MMRESULT result = timeEndPeriod(1L); | |
| 3012 } | |
| 3013 resolution = 0L; | |
| 3014 } | |
| 3015 }; | |
| 3016 | |
| 3017 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
| 3018 jlong limit = (jlong) MAXDWORD; | |
| 3019 | |
| 3020 while(ms > limit) { | |
| 3021 int res; | |
| 3022 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
| 3023 return res; | |
| 3024 ms -= limit; | |
| 3025 } | |
| 3026 | |
| 3027 assert(thread == Thread::current(), "thread consistency check"); | |
| 3028 OSThread* osthread = thread->osthread(); | |
| 3029 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
| 3030 int result; | |
| 3031 if (interruptable) { | |
| 3032 assert(thread->is_Java_thread(), "must be java thread"); | |
| 3033 JavaThread *jt = (JavaThread *) thread; | |
| 3034 ThreadBlockInVM tbivm(jt); | |
| 3035 | |
| 3036 jt->set_suspend_equivalent(); | |
| 3037 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3038 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3039 | |
| 3040 HANDLE events[1]; | |
| 3041 events[0] = osthread->interrupt_event(); | |
| 3042 HighResolutionInterval *phri=NULL; | |
| 3043 if(!ForceTimeHighResolution) | |
| 3044 phri = new HighResolutionInterval( ms ); | |
| 3045 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
| 3046 result = OS_TIMEOUT; | |
| 3047 } else { | |
| 3048 ResetEvent(osthread->interrupt_event()); | |
| 3049 osthread->set_interrupted(false); | |
| 3050 result = OS_INTRPT; | |
| 3051 } | |
| 3052 delete phri; //if it is NULL, harmless | |
| 3053 | |
| 3054 // were we externally suspended while we were waiting? | |
| 3055 jt->check_and_wait_while_suspended(); | |
| 3056 } else { | |
| 3057 assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3058 Sleep((long) ms); | |
| 3059 result = OS_TIMEOUT; | |
| 3060 } | |
| 3061 return result; | |
| 3062 } | |
| 3063 | |
| 3064 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3065 void os::infinite_sleep() { | |
| 3066 while (true) { // sleep forever ... | |
| 3067 Sleep(100000); // ... 100 seconds at a time | |
| 3068 } | |
| 3069 } | |
| 3070 | |
| 3071 typedef BOOL (WINAPI * STTSignature)(void) ; | |
| 3072 | |
| 3073 os::YieldResult os::NakedYield() { | |
| 3074 // Use either SwitchToThread() or Sleep(0) | |
| 3075 // Consider passing back the return value from SwitchToThread(). | |
|
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3076 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
|
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3077 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
| 0 | 3078 } else { |
|
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|
3079 Sleep(0); |
| 0 | 3080 } |
| 3081 return os::YIELD_UNKNOWN ; | |
| 3082 } | |
| 3083 | |
| 3084 void os::yield() { os::NakedYield(); } | |
| 3085 | |
| 3086 void os::yield_all(int attempts) { | |
| 3087 // Yields to all threads, including threads with lower priorities | |
| 3088 Sleep(1); | |
| 3089 } | |
| 3090 | |
| 3091 // Win32 only gives you access to seven real priorities at a time, | |
| 3092 // so we compress Java's ten down to seven. It would be better | |
| 3093 // if we dynamically adjusted relative priorities. | |
| 3094 | |
| 3095 int os::java_to_os_priority[MaxPriority + 1] = { | |
| 3096 THREAD_PRIORITY_IDLE, // 0 Entry should never be used | |
| 3097 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3098 THREAD_PRIORITY_LOWEST, // 2 | |
| 3099 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3100 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3101 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3102 THREAD_PRIORITY_NORMAL, // 6 | |
| 3103 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3104 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
| 3105 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
| 3106 THREAD_PRIORITY_HIGHEST // 10 MaxPriority | |
| 3107 }; | |
| 3108 | |
| 3109 int prio_policy1[MaxPriority + 1] = { | |
| 3110 THREAD_PRIORITY_IDLE, // 0 Entry should never be used | |
| 3111 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3112 THREAD_PRIORITY_LOWEST, // 2 | |
| 3113 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3114 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3115 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3116 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
| 3117 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3118 THREAD_PRIORITY_HIGHEST, // 8 | |
| 3119 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
| 3120 THREAD_PRIORITY_TIME_CRITICAL // 10 MaxPriority | |
| 3121 }; | |
| 3122 | |
| 3123 static int prio_init() { | |
| 3124 // If ThreadPriorityPolicy is 1, switch tables | |
| 3125 if (ThreadPriorityPolicy == 1) { | |
| 3126 int i; | |
| 3127 for (i = 0; i < MaxPriority + 1; i++) { | |
| 3128 os::java_to_os_priority[i] = prio_policy1[i]; | |
| 3129 } | |
| 3130 } | |
| 3131 return 0; | |
| 3132 } | |
| 3133 | |
| 3134 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
| 3135 if (!UseThreadPriorities) return OS_OK; | |
| 3136 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
| 3137 return ret ? OS_OK : OS_ERR; | |
| 3138 } | |
| 3139 | |
| 3140 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
| 3141 if ( !UseThreadPriorities ) { | |
| 3142 *priority_ptr = java_to_os_priority[NormPriority]; | |
| 3143 return OS_OK; | |
| 3144 } | |
| 3145 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
| 3146 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
| 3147 assert(false, "GetThreadPriority failed"); | |
| 3148 return OS_ERR; | |
| 3149 } | |
| 3150 *priority_ptr = os_prio; | |
| 3151 return OS_OK; | |
| 3152 } | |
| 3153 | |
| 3154 | |
| 3155 // Hint to the underlying OS that a task switch would not be good. | |
| 3156 // Void return because it's a hint and can fail. | |
| 3157 void os::hint_no_preempt() {} | |
| 3158 | |
| 3159 void os::interrupt(Thread* thread) { | |
| 3160 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3161 "possibility of dangling Thread pointer"); | |
| 3162 | |
| 3163 OSThread* osthread = thread->osthread(); | |
| 3164 osthread->set_interrupted(true); | |
| 3165 // More than one thread can get here with the same value of osthread, | |
| 3166 // resulting in multiple notifications. We do, however, want the store | |
| 3167 // to interrupted() to be visible to other threads before we post | |
| 3168 // the interrupt event. | |
| 3169 OrderAccess::release(); | |
| 3170 SetEvent(osthread->interrupt_event()); | |
| 3171 // For JSR166: unpark after setting status | |
| 3172 if (thread->is_Java_thread()) | |
| 3173 ((JavaThread*)thread)->parker()->unpark(); | |
| 3174 | |
| 3175 ParkEvent * ev = thread->_ParkEvent ; | |
| 3176 if (ev != NULL) ev->unpark() ; | |
| 3177 | |
| 3178 } | |
| 3179 | |
| 3180 | |
| 3181 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 3182 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3183 "possibility of dangling Thread pointer"); | |
| 3184 | |
| 3185 OSThread* osthread = thread->osthread(); | |
|
2386
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|
3186 bool interrupted = osthread->interrupted(); |
|
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|
3187 // There is no synchronization between the setting of the interrupt |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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diff
changeset
|
3188 // and it being cleared here. It is critical - see 6535709 - that |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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diff
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|
3189 // we only clear the interrupt state, and reset the interrupt event, |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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|
3190 // if we are going to report that we were indeed interrupted - else |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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diff
changeset
|
3191 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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|
3192 // depending on the timing |
|
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|
3193 if (interrupted && clear_interrupted) { |
| 0 | 3194 osthread->set_interrupted(false); |
| 3195 ResetEvent(osthread->interrupt_event()); | |
| 3196 } // Otherwise leave the interrupted state alone | |
| 3197 | |
| 3198 return interrupted; | |
| 3199 } | |
| 3200 | |
| 3201 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
| 3202 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 3203 CONTEXT context; | |
| 3204 context.ContextFlags = CONTEXT_CONTROL; | |
| 3205 HANDLE handle = thread->osthread()->thread_handle(); | |
| 3206 #ifdef _M_IA64 | |
| 3207 assert(0, "Fix get_thread_pc"); | |
| 3208 return ExtendedPC(NULL); | |
| 3209 #else | |
| 3210 if (GetThreadContext(handle, &context)) { | |
| 3211 #ifdef _M_AMD64 | |
| 3212 return ExtendedPC((address) context.Rip); | |
| 3213 #else | |
| 3214 return ExtendedPC((address) context.Eip); | |
| 3215 #endif | |
| 3216 } else { | |
| 3217 return ExtendedPC(NULL); | |
| 3218 } | |
| 3219 #endif | |
| 3220 } | |
| 3221 | |
| 3222 // GetCurrentThreadId() returns DWORD | |
| 3223 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
| 3224 | |
| 3225 static int _initial_pid = 0; | |
| 3226 | |
| 3227 int os::current_process_id() | |
| 3228 { | |
| 3229 return (_initial_pid ? _initial_pid : _getpid()); | |
| 3230 } | |
| 3231 | |
| 3232 int os::win32::_vm_page_size = 0; | |
| 3233 int os::win32::_vm_allocation_granularity = 0; | |
| 3234 int os::win32::_processor_type = 0; | |
| 3235 // Processor level is not available on non-NT systems, use vm_version instead | |
| 3236 int os::win32::_processor_level = 0; | |
| 3237 julong os::win32::_physical_memory = 0; | |
| 3238 size_t os::win32::_default_stack_size = 0; | |
| 3239 | |
| 3240 intx os::win32::_os_thread_limit = 0; | |
| 3241 volatile intx os::win32::_os_thread_count = 0; | |
| 3242 | |
| 3243 bool os::win32::_is_nt = false; | |
|
389
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|
3244 bool os::win32::_is_windows_2003 = false; |
|
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|
3245 bool os::win32::_is_windows_server = false; |
| 0 | 3246 |
| 3247 void os::win32::initialize_system_info() { | |
| 3248 SYSTEM_INFO si; | |
| 3249 GetSystemInfo(&si); | |
| 3250 _vm_page_size = si.dwPageSize; | |
| 3251 _vm_allocation_granularity = si.dwAllocationGranularity; | |
| 3252 _processor_type = si.dwProcessorType; | |
| 3253 _processor_level = si.wProcessorLevel; | |
|
1123
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962
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changeset
|
3254 set_processor_count(si.dwNumberOfProcessors); |
| 0 | 3255 |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
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717
diff
changeset
|
3256 MEMORYSTATUSEX ms; |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
3257 ms.dwLength = sizeof(ms); |
|
8c79517a9300
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poonam
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diff
changeset
|
3258 |
| 0 | 3259 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
| 3260 // dwMemoryLoad (% of memory in use) | |
|
877
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poonam
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diff
changeset
|
3261 GlobalMemoryStatusEx(&ms); |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
3262 _physical_memory = ms.ullTotalPhys; |
| 0 | 3263 |
|
2204
63d374c54045
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ctornqvi
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diff
changeset
|
3264 OSVERSIONINFOEX oi; |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
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2130
diff
changeset
|
3265 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
|
63d374c54045
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ctornqvi
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2130
diff
changeset
|
3266 GetVersionEx((OSVERSIONINFO*)&oi); |
| 0 | 3267 switch(oi.dwPlatformId) { |
| 3268 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
|
389
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356
diff
changeset
|
3269 case VER_PLATFORM_WIN32_NT: |
|
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changeset
|
3270 _is_nt = true; |
|
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|
3271 { |
|
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changeset
|
3272 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
|
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changeset
|
3273 if (os_vers == 5002) { |
|
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|
3274 _is_windows_2003 = true; |
|
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|
3275 } |
|
2204
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changeset
|
3276 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
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2130
diff
changeset
|
3277 oi.wProductType == VER_NT_SERVER) { |
|
63d374c54045
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2130
diff
changeset
|
3278 _is_windows_server = true; |
|
63d374c54045
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diff
changeset
|
3279 } |
|
389
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|
3280 } |
|
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diff
changeset
|
3281 break; |
| 0 | 3282 default: fatal("Unknown platform"); |
| 3283 } | |
| 3284 | |
| 3285 _default_stack_size = os::current_stack_size(); | |
| 3286 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
| 3287 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
| 3288 "stack size not a multiple of page size"); | |
| 3289 | |
| 3290 initialize_performance_counter(); | |
| 3291 | |
| 3292 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
| 3293 // known to deadlock the system, if the VM issues to thread operations with | |
| 3294 // a too high frequency, e.g., such as changing the priorities. | |
| 3295 // The 6000 seems to work well - no deadlocks has been notices on the test | |
| 3296 // programs that we have seen experience this problem. | |
| 3297 if (!os::win32::is_nt()) { | |
| 3298 StarvationMonitorInterval = 6000; | |
| 3299 } | |
| 3300 } | |
| 3301 | |
| 3302 | |
|
3429
5def270bc147
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2386
diff
changeset
|
3303 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
2386
diff
changeset
|
3304 char path[MAX_PATH]; |
|
5def270bc147
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zgu
parents:
2386
diff
changeset
|
3305 DWORD size; |
|
5def270bc147
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zgu
parents:
2386
diff
changeset
|
3306 DWORD pathLen = (DWORD)sizeof(path); |
|
5def270bc147
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zgu
parents:
2386
diff
changeset
|
3307 HINSTANCE result = NULL; |
|
5def270bc147
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zgu
parents:
2386
diff
changeset
|
3308 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3309 // only allow library name without path component |
|
5def270bc147
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zgu
parents:
2386
diff
changeset
|
3310 assert(strchr(name, '\\') == NULL, "path not allowed"); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3311 assert(strchr(name, ':') == NULL, "path not allowed"); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3312 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3313 jio_snprintf(ebuf, ebuflen, |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3314 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3315 return NULL; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3316 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3317 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3318 // search system directory |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3319 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3320 strcat(path, "\\"); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3321 strcat(path, name); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3322 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3323 return result; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3324 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3325 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3326 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3327 // try Windows directory |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3328 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3329 strcat(path, "\\"); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3330 strcat(path, name); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3331 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3332 return result; |
|
5def270bc147
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zgu
parents:
2386
diff
changeset
|
3333 } |
|
5def270bc147
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zgu
parents:
2386
diff
changeset
|
3334 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3335 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
3336 jio_snprintf(ebuf, ebuflen, |
|
5def270bc147
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zgu
parents:
2386
diff
changeset
|
3337 "os::win32::load_windows_dll() cannot load %s from system directories.", name); |
|
5def270bc147
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zgu
parents:
2386
diff
changeset
|
3338 return NULL; |
|
5def270bc147
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parents:
2386
diff
changeset
|
3339 } |
|
5def270bc147
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zgu
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2386
diff
changeset
|
3340 |
| 0 | 3341 void os::win32::setmode_streams() { |
| 3342 _setmode(_fileno(stdin), _O_BINARY); | |
| 3343 _setmode(_fileno(stdout), _O_BINARY); | |
| 3344 _setmode(_fileno(stderr), _O_BINARY); | |
| 3345 } | |
| 3346 | |
| 3347 | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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2205
diff
changeset
|
3348 bool os::is_debugger_attached() { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3349 return IsDebuggerPresent() ? true : false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3350 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3351 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3352 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3353 void os::wait_for_keypress_at_exit(void) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3354 if (PauseAtExit) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3355 fprintf(stderr, "Press any key to continue...\n"); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3356 fgetc(stdin); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3357 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3358 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2205
diff
changeset
|
3359 |
|
da091bb67459
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2205
diff
changeset
|
3360 |
| 0 | 3361 int os::message_box(const char* title, const char* message) { |
| 3362 int result = MessageBox(NULL, message, title, | |
| 3363 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
| 3364 return result == IDYES; | |
| 3365 } | |
| 3366 | |
| 3367 int os::allocate_thread_local_storage() { | |
| 3368 return TlsAlloc(); | |
| 3369 } | |
| 3370 | |
| 3371 | |
| 3372 void os::free_thread_local_storage(int index) { | |
| 3373 TlsFree(index); | |
| 3374 } | |
| 3375 | |
| 3376 | |
| 3377 void os::thread_local_storage_at_put(int index, void* value) { | |
| 3378 TlsSetValue(index, value); | |
| 3379 assert(thread_local_storage_at(index) == value, "Just checking"); | |
| 3380 } | |
| 3381 | |
| 3382 | |
| 3383 void* os::thread_local_storage_at(int index) { | |
| 3384 return TlsGetValue(index); | |
| 3385 } | |
| 3386 | |
| 3387 | |
| 3388 #ifndef PRODUCT | |
| 3389 #ifndef _WIN64 | |
| 3390 // Helpers to check whether NX protection is enabled | |
| 3391 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
| 3392 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 3393 pex->ExceptionRecord->NumberParameters > 0 && | |
| 3394 pex->ExceptionRecord->ExceptionInformation[0] == | |
| 3395 EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 3396 return EXCEPTION_EXECUTE_HANDLER; | |
| 3397 } | |
| 3398 return EXCEPTION_CONTINUE_SEARCH; | |
| 3399 } | |
| 3400 | |
| 3401 void nx_check_protection() { | |
| 3402 // If NX is enabled we'll get an exception calling into code on the stack | |
| 3403 char code[] = { (char)0xC3 }; // ret | |
| 3404 void *code_ptr = (void *)code; | |
| 3405 __try { | |
| 3406 __asm call code_ptr | |
| 3407 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
| 3408 tty->print_raw_cr("NX protection detected."); | |
| 3409 } | |
| 3410 } | |
| 3411 #endif // _WIN64 | |
| 3412 #endif // PRODUCT | |
| 3413 | |
| 3414 // this is called _before_ the global arguments have been parsed | |
| 3415 void os::init(void) { | |
| 3416 _initial_pid = _getpid(); | |
| 3417 | |
| 3418 init_random(1234567); | |
| 3419 | |
| 3420 win32::initialize_system_info(); | |
| 3421 win32::setmode_streams(); | |
| 3422 init_page_sizes((size_t) win32::vm_page_size()); | |
| 3423 | |
| 3424 // For better scalability on MP systems (must be called after initialize_system_info) | |
| 3425 #ifndef PRODUCT | |
| 3426 if (is_MP()) { | |
| 3427 NoYieldsInMicrolock = true; | |
| 3428 } | |
| 3429 #endif | |
|
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3430 // This may be overridden later when argument processing is done. |
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3431 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
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3432 os::win32::is_windows_2003()); |
|
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3433 |
| 0 | 3434 // Initialize main_process and main_thread |
| 3435 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
|
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3436 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
| 0 | 3437 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
| 3438 fatal("DuplicateHandle failed\n"); | |
| 3439 } | |
| 3440 main_thread_id = (int) GetCurrentThreadId(); | |
| 3441 } | |
| 3442 | |
| 3443 // To install functions for atexit processing | |
| 3444 extern "C" { | |
| 3445 static void perfMemory_exit_helper() { | |
| 3446 perfMemory_exit(); | |
| 3447 } | |
| 3448 } | |
| 3449 | |
| 3450 // this is called _after_ the global arguments have been parsed | |
| 3451 jint os::init_2(void) { | |
| 3452 // Allocate a single page and mark it as readable for safepoint polling | |
| 3453 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
| 3454 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
| 3455 | |
| 3456 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
| 3457 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
| 3458 | |
| 3459 os::set_polling_page( polling_page ); | |
| 3460 | |
| 3461 #ifndef PRODUCT | |
| 3462 if( Verbose && PrintMiscellaneous ) | |
| 3463 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 3464 #endif | |
| 3465 | |
| 3466 if (!UseMembar) { | |
| 656 | 3467 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
| 0 | 3468 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
| 3469 | |
| 656 | 3470 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
| 0 | 3471 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
| 3472 | |
| 3473 os::set_memory_serialize_page( mem_serialize_page ); | |
| 3474 | |
| 3475 #ifndef PRODUCT | |
| 3476 if(Verbose && PrintMiscellaneous) | |
| 3477 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 3478 #endif | |
| 3479 } | |
| 3480 | |
| 3481 FLAG_SET_DEFAULT(UseLargePages, os::large_page_init()); | |
| 3482 | |
| 3483 // Setup Windows Exceptions | |
| 3484 | |
| 3485 // On Itanium systems, Structured Exception Handling does not | |
| 3486 // work since stack frames must be walkable by the OS. Since | |
| 3487 // much of our code is dynamically generated, and we do not have | |
| 3488 // proper unwind .xdata sections, the system simply exits | |
| 3489 // rather than delivering the exception. To work around | |
| 3490 // this we use VectorExceptions instead. | |
| 3491 #ifdef _WIN64 | |
| 3492 if (UseVectoredExceptions) { | |
| 3493 topLevelVectoredExceptionHandler = AddVectoredExceptionHandler( 1, topLevelExceptionFilter); | |
| 3494 } | |
| 3495 #endif | |
| 3496 | |
| 3497 // for debugging float code generation bugs | |
| 3498 if (ForceFloatExceptions) { | |
| 3499 #ifndef _WIN64 | |
| 3500 static long fp_control_word = 0; | |
| 3501 __asm { fstcw fp_control_word } | |
| 3502 // see Intel PPro Manual, Vol. 2, p 7-16 | |
| 3503 const long precision = 0x20; | |
| 3504 const long underflow = 0x10; | |
| 3505 const long overflow = 0x08; | |
| 3506 const long zero_div = 0x04; | |
| 3507 const long denorm = 0x02; | |
| 3508 const long invalid = 0x01; | |
| 3509 fp_control_word |= invalid; | |
| 3510 __asm { fldcw fp_control_word } | |
| 3511 #endif | |
| 3512 } | |
| 3513 | |
| 3514 // If stack_commit_size is 0, windows will reserve the default size, | |
| 3515 // but only commit a small portion of it. | |
| 3516 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
| 3517 size_t default_reserve_size = os::win32::default_stack_size(); | |
| 3518 size_t actual_reserve_size = stack_commit_size; | |
| 3519 if (stack_commit_size < default_reserve_size) { | |
| 3520 // If stack_commit_size == 0, we want this too | |
| 3521 actual_reserve_size = default_reserve_size; | |
| 3522 } | |
| 3523 | |
|
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3524 // Check minimum allowable stack size for thread creation and to initialize |
|
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3525 // the java system classes, including StackOverflowError - depends on page |
|
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3526 // size. Add a page for compiler2 recursion in main thread. |
|
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3527 // Add in 2*BytesPerWord times page size to account for VM stack during |
|
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3528 // class initialization depending on 32 or 64 bit VM. |
|
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|
3529 size_t min_stack_allowed = |
|
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3530 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
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|
3531 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
|
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|
3532 if (actual_reserve_size < min_stack_allowed) { |
|
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3533 tty->print_cr("\nThe stack size specified is too small, " |
|
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3534 "Specify at least %dk", |
|
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|
3535 min_stack_allowed / K); |
|
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|
3536 return JNI_ERR; |
|
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3537 } |
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|
3538 |
| 0 | 3539 JavaThread::set_stack_size_at_create(stack_commit_size); |
| 3540 | |
| 3541 // Calculate theoretical max. size of Threads to guard gainst artifical | |
| 3542 // out-of-memory situations, where all available address-space has been | |
| 3543 // reserved by thread stacks. | |
| 3544 assert(actual_reserve_size != 0, "Must have a stack"); | |
| 3545 | |
| 3546 // Calculate the thread limit when we should start doing Virtual Memory | |
| 3547 // banging. Currently when the threads will have used all but 200Mb of space. | |
| 3548 // | |
| 3549 // TODO: consider performing a similar calculation for commit size instead | |
| 3550 // as reserve size, since on a 64-bit platform we'll run into that more | |
| 3551 // often than running out of virtual memory space. We can use the | |
| 3552 // lower value of the two calculations as the os_thread_limit. | |
|
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|
3553 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
| 0 | 3554 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
| 3555 | |
| 3556 // at exit methods are called in the reverse order of their registration. | |
| 3557 // there is no limit to the number of functions registered. atexit does | |
| 3558 // not set errno. | |
| 3559 | |
| 3560 if (PerfAllowAtExitRegistration) { | |
| 3561 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 3562 // atexit functions can be delayed until process exit time, which | |
| 3563 // can be problematic for embedded VM situations. Embedded VMs should | |
| 3564 // call DestroyJavaVM() to assure that VM resources are released. | |
| 3565 | |
| 3566 // note: perfMemory_exit_helper atexit function may be removed in | |
| 3567 // the future if the appropriate cleanup code can be added to the | |
| 3568 // VM_Exit VMOperation's doit method. | |
| 3569 if (atexit(perfMemory_exit_helper) != 0) { | |
| 3570 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
| 3571 } | |
| 3572 } | |
| 3573 | |
| 3574 #ifndef _WIN64 | |
| 3575 // Print something if NX is enabled (win32 on AMD64) | |
| 3576 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
| 3577 #endif | |
| 3578 | |
| 3579 // initialize thread priority policy | |
| 3580 prio_init(); | |
| 3581 | |
|
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|
3582 if (UseNUMA && !ForceNUMA) { |
|
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3583 UseNUMA = false; // Currently unsupported. |
|
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3584 } |
|
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|
3585 |
| 0 | 3586 return JNI_OK; |
| 3587 } | |
| 3588 | |
|
1681
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|
3589 void os::init_3(void) { |
|
126ea7725993
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|
3590 return; |
|
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|
3591 } |
| 0 | 3592 |
| 3593 // Mark the polling page as unreadable | |
| 3594 void os::make_polling_page_unreadable(void) { | |
| 3595 DWORD old_status; | |
| 3596 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
| 3597 fatal("Could not disable polling page"); | |
| 3598 }; | |
| 3599 | |
| 3600 // Mark the polling page as readable | |
| 3601 void os::make_polling_page_readable(void) { | |
| 3602 DWORD old_status; | |
| 3603 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
| 3604 fatal("Could not enable polling page"); | |
| 3605 }; | |
| 3606 | |
| 3607 | |
| 3608 int os::stat(const char *path, struct stat *sbuf) { | |
| 3609 char pathbuf[MAX_PATH]; | |
| 3610 if (strlen(path) > MAX_PATH - 1) { | |
| 3611 errno = ENAMETOOLONG; | |
| 3612 return -1; | |
| 3613 } | |
|
1980
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|
3614 os::native_path(strcpy(pathbuf, path)); |
| 0 | 3615 int ret = ::stat(pathbuf, sbuf); |
| 3616 if (sbuf != NULL && UseUTCFileTimestamp) { | |
| 3617 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
| 3618 // the system timezone and so can return different values for the | |
| 3619 // same file if/when daylight savings time changes. This adjustment | |
| 3620 // makes sure the same timestamp is returned regardless of the TZ. | |
| 3621 // | |
| 3622 // See: | |
| 3623 // http://msdn.microsoft.com/library/ | |
| 3624 // default.asp?url=/library/en-us/sysinfo/base/ | |
| 3625 // time_zone_information_str.asp | |
| 3626 // and | |
| 3627 // http://msdn.microsoft.com/library/default.asp?url= | |
| 3628 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
| 3629 // | |
| 3630 // NOTE: there is a insidious bug here: If the timezone is changed | |
| 3631 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
| 3632 // the adjustment we do here will be wrong and we'll return the wrong | |
| 3633 // value (which will likely end up creating an invalid class data | |
| 3634 // archive). Absent a better API for this, or some time zone locking | |
| 3635 // mechanism, we'll have to live with this risk. | |
| 3636 TIME_ZONE_INFORMATION tz; | |
| 3637 DWORD tzid = GetTimeZoneInformation(&tz); | |
| 3638 int daylightBias = | |
| 3639 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
| 3640 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
| 3641 } | |
| 3642 return ret; | |
| 3643 } | |
| 3644 | |
| 3645 | |
| 3646 #define FT2INT64(ft) \ | |
| 3647 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
| 3648 | |
| 3649 | |
| 3650 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 3651 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 3652 // of a thread. | |
| 3653 // | |
| 3654 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
| 3655 // the fast estimate available on the platform. | |
| 3656 | |
| 3657 // current_thread_cpu_time() is not optimized for Windows yet | |
| 3658 jlong os::current_thread_cpu_time() { | |
| 3659 // return user + sys since the cost is the same | |
| 3660 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
| 3661 } | |
| 3662 | |
| 3663 jlong os::thread_cpu_time(Thread* thread) { | |
| 3664 // consistent with what current_thread_cpu_time() returns. | |
| 3665 return os::thread_cpu_time(thread, true /* user+sys */); | |
| 3666 } | |
| 3667 | |
| 3668 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 3669 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 3670 } | |
| 3671 | |
| 3672 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
| 3673 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
| 3674 // If this function changes, os::is_thread_cpu_time_supported() should too | |
| 3675 if (os::win32::is_nt()) { | |
| 3676 FILETIME CreationTime; | |
| 3677 FILETIME ExitTime; | |
| 3678 FILETIME KernelTime; | |
| 3679 FILETIME UserTime; | |
| 3680 | |
| 3681 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
| 3682 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 3683 return -1; | |
| 3684 else | |
| 3685 if (user_sys_cpu_time) { | |
| 3686 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
| 3687 } else { | |
| 3688 return FT2INT64(UserTime) * 100; | |
| 3689 } | |
| 3690 } else { | |
| 3691 return (jlong) timeGetTime() * 1000000; | |
| 3692 } | |
| 3693 } | |
| 3694 | |
| 3695 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 3696 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 3697 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 3698 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 3699 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 3700 } | |
| 3701 | |
| 3702 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 3703 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 3704 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 3705 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 3706 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 3707 } | |
| 3708 | |
| 3709 bool os::is_thread_cpu_time_supported() { | |
| 3710 // see os::thread_cpu_time | |
| 3711 if (os::win32::is_nt()) { | |
| 3712 FILETIME CreationTime; | |
| 3713 FILETIME ExitTime; | |
| 3714 FILETIME KernelTime; | |
| 3715 FILETIME UserTime; | |
| 3716 | |
| 3717 if ( GetThreadTimes(GetCurrentThread(), | |
| 3718 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 3719 return false; | |
| 3720 else | |
| 3721 return true; | |
| 3722 } else { | |
| 3723 return false; | |
| 3724 } | |
| 3725 } | |
| 3726 | |
| 3727 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
| 3728 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
| 3729 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
| 3730 // If we wanted to implement loadavg on Windows, we have a few options: | |
| 3731 // | |
| 3732 // a) Query CPU usage and run queue length and "fake" an answer by | |
| 3733 // returning the CPU usage if it's under 100%, and the run queue | |
| 3734 // length otherwise. It turns out that querying is pretty slow | |
| 3735 // on Windows, on the order of 200 microseconds on a fast machine. | |
| 3736 // Note that on the Windows the CPU usage value is the % usage | |
| 3737 // since the last time the API was called (and the first call | |
| 3738 // returns 100%), so we'd have to deal with that as well. | |
| 3739 // | |
| 3740 // b) Sample the "fake" answer using a sampling thread and store | |
| 3741 // the answer in a global variable. The call to loadavg would | |
| 3742 // just return the value of the global, avoiding the slow query. | |
| 3743 // | |
| 3744 // c) Sample a better answer using exponential decay to smooth the | |
| 3745 // value. This is basically the algorithm used by UNIX kernels. | |
| 3746 // | |
| 3747 // Note that sampling thread starvation could affect both (b) and (c). | |
| 3748 int os::loadavg(double loadavg[], int nelem) { | |
| 3749 return -1; | |
| 3750 } | |
| 3751 | |
| 3752 | |
| 3753 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
| 3754 bool os::dont_yield() { | |
| 3755 return DontYieldALot; | |
| 3756 } | |
| 3757 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3758 // 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
|
3759 // 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
|
3760 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3761 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
|
3762 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3763 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3764 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3765 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3766 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3767 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3768 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3769 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
|
3770 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3771 |
| 0 | 3772 // Is a (classpath) directory empty? |
| 3773 bool os::dir_is_empty(const char* path) { | |
| 3774 WIN32_FIND_DATA fd; | |
| 3775 HANDLE f = FindFirstFile(path, &fd); | |
| 3776 if (f == INVALID_HANDLE_VALUE) { | |
| 3777 return true; | |
| 3778 } | |
| 3779 FindClose(f); | |
| 3780 return false; | |
| 3781 } | |
| 3782 | |
| 3783 // create binary file, rewriting existing file if required | |
| 3784 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 3785 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
| 3786 if (!rewrite_existing) { | |
| 3787 oflags |= _O_EXCL; | |
| 3788 } | |
| 3789 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
| 3790 } | |
| 3791 | |
| 3792 // return current position of file pointer | |
| 3793 jlong os::current_file_offset(int fd) { | |
| 3794 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
| 3795 } | |
| 3796 | |
| 3797 // move file pointer to the specified offset | |
| 3798 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 3799 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
| 3800 } | |
| 3801 | |
| 3802 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3803 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
|
3804 return (jlong) ::_lseeki64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3805 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3806 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3807 // 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
|
3808 // from src/windows/hpi/src/path_md.c |
|
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 /* 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
|
3811 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
|
3812 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
|
3813 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
|
3814 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
|
3815 treat double-byte lead characters correctly. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3816 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3817 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
|
3818 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
|
3819 succeeds. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3820 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3821 char *src = path, *dst = path, *end = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3822 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
|
3823 point to the colon following the drive |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3824 letter */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3825 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3826 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3827 assert(((!::IsDBCSLeadByte('/')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3828 && (!::IsDBCSLeadByte('\\')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3829 && (!::IsDBCSLeadByte(':'))), |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3830 "Illegal lead byte"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3831 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3832 /* Check for leading separators */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3833 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3834 while (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3835 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3836 } |
|
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 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3839 /* 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
|
3840 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
|
3841 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
|
3842 "/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
|
3843 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3844 colon = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3845 *dst++ = ':'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3846 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3847 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3848 src = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3849 if (isfilesep(src[0]) && isfilesep(src[1])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3850 /* 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
|
3851 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
|
3852 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
|
3853 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
|
3854 src = dst = path + 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3855 path[0] = '\\'; /* Force first separator to '\\' */ |
|
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 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3858 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3859 end = dst; |
|
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 /* 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
|
3862 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
|
3863 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
|
3864 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
|
3865 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3866 while (*src != '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3867 if (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3868 *dst++ = '\\'; src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3869 while (isfilesep(*src)) src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3870 if (*src == '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3871 /* Check for trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3872 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3873 if (colon == dst - 2) break; /* "z:\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3874 if (dst == path + 1) break; /* "\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3875 if (dst == path + 2 && isfilesep(path[0])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3876 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3877 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
|
3878 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
|
3879 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
|
3880 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
|
3881 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
|
3882 directory of the current drive. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3883 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3884 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3885 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
|
3886 remove trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3887 break; |
|
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 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3890 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3891 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3892 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3893 if (*src) *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3894 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3895 } else { /* Copy a single-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3896 char c = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3897 *dst++ = c; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3898 /* Space is not a legal ending character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3899 if (c != ' ') end = dst; |
|
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 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3903 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3904 *end = '\0'; |
|
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 /* 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
|
3907 if (colon == dst - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3908 path[2] = '.'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3909 path[3] = '\0'; |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3912 #ifdef DEBUG |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3913 jio_fprintf(stderr, "sysNativePath: %s\n", path); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3914 #endif DEBUG |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3915 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3916 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3917 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3918 // 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
|
3919 // 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
|
3920 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3921 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3922 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3923 long high = (long)(length >> 32); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3924 DWORD ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3925 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3926 if (h == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3927 return -1; |
|
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 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3931 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3932 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3933 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3934 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3935 if (::SetEndOfFile(h) == FALSE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3936 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3937 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3938 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3939 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3940 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3941 |
|
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 // 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
|
3944 // 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
|
3945 // 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
|
3946 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3947 int os::fsync(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3948 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3949 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3950 if ( (!::FlushFileBuffers(handle)) && |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3951 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3952 /* from winerror.h */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3953 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3954 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3955 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3956 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3957 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3958 static int nonSeekAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3959 static int stdinAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3960 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3961 #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
|
3962 #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
|
3963 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3964 // 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
|
3965 // 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
|
3966 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3967 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3968 jlong cur, end; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3969 struct _stati64 stbuf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3970 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3971 if (::_fstati64(fd, &stbuf64) >= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3972 int mode = stbuf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3973 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3974 int ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3975 long lpbytes; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3976 if (fd == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3977 ret = stdinAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3978 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3979 ret = nonSeekAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3980 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3981 (*bytes) = (jlong)(lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3982 return ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3983 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3984 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3985 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3986 } 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
|
3987 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3988 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3989 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3990 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3991 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3992 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3993 } else { |
|
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 } |
|
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 // 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
|
3999 // 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
|
4000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4001 static int nonSeekAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4002 /* 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
|
4003 * (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
|
4004 * connected to an exec'd process). |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4005 * Standard Input is a special case. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4006 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4007 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4008 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4009 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4010 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4011 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4012 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4013 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4014 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
|
4015 /* 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
|
4016 * 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
|
4017 * 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
|
4018 * The only alternative is to raise an Exception, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4019 * which isn't really warranted. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4020 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4021 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4022 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4023 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4024 *pbytes = 0; |
|
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 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4027 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4028 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4029 #define MAX_INPUT_EVENTS 2000 |
|
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 // This code is a copy of JDK's stdinAvailable |
|
828eafbd85cc
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4032 // from src/windows/hpi/src/sys_api_md.c |
|
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|
4033 |
|
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|
4034 static int stdinAvailable(int fd, long *pbytes) { |
|
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|
4035 HANDLE han; |
|
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4036 DWORD numEventsRead = 0; /* Number of events read from buffer */ |
|
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4037 DWORD numEvents = 0; /* Number of events in buffer */ |
|
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4038 DWORD i = 0; /* Loop index */ |
|
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|
4039 DWORD curLength = 0; /* Position marker */ |
|
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|
4040 DWORD actualLength = 0; /* Number of bytes readable */ |
|
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|
4041 BOOL error = FALSE; /* Error holder */ |
|
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|
4042 INPUT_RECORD *lpBuffer; /* Pointer to records of input events */ |
|
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|
4043 |
|
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|
4044 if ((han = ::GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) { |
|
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|
4045 return FALSE; |
|
828eafbd85cc
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diff
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|
4046 } |
|
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|
4047 |
|
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|
4048 /* Construct an array of input records in the console buffer */ |
|
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|
4049 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
|
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|
4050 if (error == 0) { |
|
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|
4051 return nonSeekAvailable(fd, pbytes); |
|
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diff
changeset
|
4052 } |
|
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|
4053 |
|
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|
4054 /* lpBuffer must fit into 64K or else PeekConsoleInput fails */ |
|
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|
4055 if (numEvents > MAX_INPUT_EVENTS) { |
|
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|
4056 numEvents = MAX_INPUT_EVENTS; |
|
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|
4057 } |
|
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|
4058 |
|
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|
4059 lpBuffer = (INPUT_RECORD *)os::malloc(numEvents * sizeof(INPUT_RECORD)); |
|
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|
4060 if (lpBuffer == NULL) { |
|
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|
4061 return FALSE; |
|
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diff
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|
4062 } |
|
828eafbd85cc
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|
4063 |
|
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|
4064 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
|
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|
4065 if (error == 0) { |
|
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|
4066 os::free(lpBuffer); |
|
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|
4067 return FALSE; |
|
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diff
changeset
|
4068 } |
|
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|
4069 |
|
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|
4070 /* Examine input records for the number of bytes available */ |
|
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|
4071 for(i=0; i<numEvents; i++) { |
|
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|
4072 if (lpBuffer[i].EventType == KEY_EVENT) { |
|
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|
4073 |
|
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|
4074 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
|
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|
4075 &(lpBuffer[i].Event); |
|
828eafbd85cc
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changeset
|
4076 if (keyRecord->bKeyDown == TRUE) { |
|
828eafbd85cc
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diff
changeset
|
4077 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
|
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|
4078 curLength++; |
|
828eafbd85cc
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changeset
|
4079 if (*keyPressed == '\r') { |
|
828eafbd85cc
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diff
changeset
|
4080 actualLength = curLength; |
|
828eafbd85cc
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parents:
1972
diff
changeset
|
4081 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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parents:
1972
diff
changeset
|
4082 } |
|
828eafbd85cc
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1972
diff
changeset
|
4083 } |
|
828eafbd85cc
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parents:
1972
diff
changeset
|
4084 } |
|
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
4085 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4086 if(lpBuffer != NULL) { |
|
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
4087 os::free(lpBuffer); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4088 } |
|
828eafbd85cc
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ikrylov
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1972
diff
changeset
|
4089 |
|
828eafbd85cc
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parents:
1972
diff
changeset
|
4090 *pbytes = (long) actualLength; |
|
828eafbd85cc
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ikrylov
parents:
1972
diff
changeset
|
4091 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4092 } |
|
828eafbd85cc
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changeset
|
4093 |
| 0 | 4094 // Map a block of memory. |
| 4095 char* os::map_memory(int fd, const char* file_name, size_t file_offset, | |
| 4096 char *addr, size_t bytes, bool read_only, | |
| 4097 bool allow_exec) { | |
| 4098 HANDLE hFile; | |
| 4099 char* base; | |
| 4100 | |
| 4101 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
| 4102 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
| 4103 if (hFile == NULL) { | |
| 4104 if (PrintMiscellaneous && Verbose) { | |
| 4105 DWORD err = GetLastError(); | |
| 4106 tty->print_cr("CreateFile() failed: GetLastError->%ld."); | |
| 4107 } | |
| 4108 return NULL; | |
| 4109 } | |
| 4110 | |
| 4111 if (allow_exec) { | |
| 4112 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
| 4113 // unless it comes from a PE image (which the shared archive is not.) | |
| 4114 // Even VirtualProtect refuses to give execute access to mapped memory | |
| 4115 // that was not previously executable. | |
| 4116 // | |
| 4117 // Instead, stick the executable region in anonymous memory. Yuck. | |
| 4118 // Penalty is that ~4 pages will not be shareable - in the future | |
| 4119 // we might consider DLLizing the shared archive with a proper PE | |
| 4120 // header so that mapping executable + sharing is possible. | |
| 4121 | |
| 4122 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
| 4123 PAGE_READWRITE); | |
| 4124 if (base == NULL) { | |
| 4125 if (PrintMiscellaneous && Verbose) { | |
| 4126 DWORD err = GetLastError(); | |
| 4127 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
| 4128 } | |
| 4129 CloseHandle(hFile); | |
| 4130 return NULL; | |
| 4131 } | |
| 4132 | |
| 4133 DWORD bytes_read; | |
| 4134 OVERLAPPED overlapped; | |
| 4135 overlapped.Offset = (DWORD)file_offset; | |
| 4136 overlapped.OffsetHigh = 0; | |
| 4137 overlapped.hEvent = NULL; | |
| 4138 // ReadFile guarantees that if the return value is true, the requested | |
| 4139 // number of bytes were read before returning. | |
| 4140 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
| 4141 if (!res) { | |
| 4142 if (PrintMiscellaneous && Verbose) { | |
| 4143 DWORD err = GetLastError(); | |
| 4144 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
| 4145 } | |
| 4146 release_memory(base, bytes); | |
| 4147 CloseHandle(hFile); | |
| 4148 return NULL; | |
| 4149 } | |
| 4150 } else { | |
| 4151 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
| 4152 NULL /*file_name*/); | |
| 4153 if (hMap == NULL) { | |
| 4154 if (PrintMiscellaneous && Verbose) { | |
| 4155 DWORD err = GetLastError(); | |
| 4156 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld."); | |
| 4157 } | |
| 4158 CloseHandle(hFile); | |
| 4159 return NULL; | |
| 4160 } | |
| 4161 | |
| 4162 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
| 4163 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
| 4164 (DWORD)bytes, addr); | |
| 4165 if (base == NULL) { | |
| 4166 if (PrintMiscellaneous && Verbose) { | |
| 4167 DWORD err = GetLastError(); | |
| 4168 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
| 4169 } | |
| 4170 CloseHandle(hMap); | |
| 4171 CloseHandle(hFile); | |
| 4172 return NULL; | |
| 4173 } | |
| 4174 | |
| 4175 if (CloseHandle(hMap) == 0) { | |
| 4176 if (PrintMiscellaneous && Verbose) { | |
| 4177 DWORD err = GetLastError(); | |
| 4178 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
| 4179 } | |
| 4180 CloseHandle(hFile); | |
| 4181 return base; | |
| 4182 } | |
| 4183 } | |
| 4184 | |
| 4185 if (allow_exec) { | |
| 4186 DWORD old_protect; | |
| 4187 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
| 4188 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
| 4189 | |
| 4190 if (!res) { | |
| 4191 if (PrintMiscellaneous && Verbose) { | |
| 4192 DWORD err = GetLastError(); | |
| 4193 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
| 4194 } | |
| 4195 // Don't consider this a hard error, on IA32 even if the | |
| 4196 // VirtualProtect fails, we should still be able to execute | |
| 4197 CloseHandle(hFile); | |
| 4198 return base; | |
| 4199 } | |
| 4200 } | |
| 4201 | |
| 4202 if (CloseHandle(hFile) == 0) { | |
| 4203 if (PrintMiscellaneous && Verbose) { | |
| 4204 DWORD err = GetLastError(); | |
| 4205 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
| 4206 } | |
| 4207 return base; | |
| 4208 } | |
| 4209 | |
| 4210 return base; | |
| 4211 } | |
| 4212 | |
| 4213 | |
| 4214 // Remap a block of memory. | |
| 4215 char* os::remap_memory(int fd, const char* file_name, size_t file_offset, | |
| 4216 char *addr, size_t bytes, bool read_only, | |
| 4217 bool allow_exec) { | |
| 4218 // This OS does not allow existing memory maps to be remapped so we | |
| 4219 // have to unmap the memory before we remap it. | |
| 4220 if (!os::unmap_memory(addr, bytes)) { | |
| 4221 return NULL; | |
| 4222 } | |
| 4223 | |
| 4224 // There is a very small theoretical window between the unmap_memory() | |
| 4225 // call above and the map_memory() call below where a thread in native | |
| 4226 // code may be able to access an address that is no longer mapped. | |
| 4227 | |
| 4228 return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only, | |
| 4229 allow_exec); | |
| 4230 } | |
| 4231 | |
| 4232 | |
| 4233 // Unmap a block of memory. | |
| 4234 // Returns true=success, otherwise false. | |
| 4235 | |
| 4236 bool os::unmap_memory(char* addr, size_t bytes) { | |
| 4237 BOOL result = UnmapViewOfFile(addr); | |
| 4238 if (result == 0) { | |
| 4239 if (PrintMiscellaneous && Verbose) { | |
| 4240 DWORD err = GetLastError(); | |
| 4241 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
| 4242 } | |
| 4243 return false; | |
| 4244 } | |
| 4245 return true; | |
| 4246 } | |
| 4247 | |
| 4248 void os::pause() { | |
| 4249 char filename[MAX_PATH]; | |
| 4250 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 4251 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 4252 } else { | |
| 4253 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 4254 } | |
| 4255 | |
| 4256 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 4257 if (fd != -1) { | |
| 4258 struct stat buf; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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parents:
1972
diff
changeset
|
4259 ::close(fd); |
| 0 | 4260 while (::stat(filename, &buf) == 0) { |
| 4261 Sleep(100); | |
| 4262 } | |
| 4263 } else { | |
| 4264 jio_fprintf(stderr, | |
| 4265 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 4266 } | |
| 4267 } | |
| 4268 | |
| 4269 // An Event wraps a win32 "CreateEvent" kernel handle. | |
| 4270 // | |
| 4271 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
| 4272 // | |
| 4273 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
| 4274 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
| 4275 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
| 4276 // In addition, an unpark() operation might fetch the handle field, but the | |
| 4277 // event could recycle between the fetch and the SetEvent() operation. | |
| 4278 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
| 4279 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
| 4280 // on an stale but recycled handle would be harmless, but in practice this might | |
| 4281 // confuse other non-Sun code, so it's not a viable approach. | |
| 4282 // | |
| 4283 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
| 4284 // with the Event. The event handle is never closed. This could be construed | |
| 4285 // as handle leakage, but only up to the maximum # of threads that have been extant | |
| 4286 // at any one time. This shouldn't be an issue, as windows platforms typically | |
| 4287 // permit a process to have hundreds of thousands of open handles. | |
| 4288 // | |
| 4289 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
| 4290 // and release unused handles. | |
| 4291 // | |
| 4292 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
| 4293 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
| 4294 // | |
| 4295 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
| 4296 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
| 4297 // | |
| 4298 // We use (2). | |
| 4299 // | |
| 4300 // TODO-FIXME: | |
| 4301 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
| 4302 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
| 4303 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
| 4304 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
| 4305 // into a single win32 CreateEvent() handle. | |
| 4306 // | |
| 4307 // _Event transitions in park() | |
| 4308 // -1 => -1 : illegal | |
| 4309 // 1 => 0 : pass - return immediately | |
| 4310 // 0 => -1 : block | |
| 4311 // | |
| 4312 // _Event serves as a restricted-range semaphore : | |
| 4313 // -1 : thread is blocked | |
| 4314 // 0 : neutral - thread is running or ready | |
| 4315 // 1 : signaled - thread is running or ready | |
| 4316 // | |
| 4317 // Another possible encoding of _Event would be | |
| 4318 // with explicit "PARKED" and "SIGNALED" bits. | |
| 4319 | |
| 4320 int os::PlatformEvent::park (jlong Millis) { | |
| 4321 guarantee (_ParkHandle != NULL , "Invariant") ; | |
| 4322 guarantee (Millis > 0 , "Invariant") ; | |
| 4323 int v ; | |
| 4324 | |
| 4325 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
| 4326 // the initial park() operation. | |
| 4327 | |
| 4328 for (;;) { | |
| 4329 v = _Event ; | |
| 4330 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4331 } | |
| 4332 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4333 if (v != 0) return OS_OK ; | |
| 4334 | |
| 4335 // Do this the hard way by blocking ... | |
| 4336 // TODO: consider a brief spin here, gated on the success of recent | |
| 4337 // spin attempts by this thread. | |
| 4338 // | |
| 4339 // We decompose long timeouts into series of shorter timed waits. | |
| 4340 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
| 4341 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
| 4342 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
| 4343 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
| 4344 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
| 4345 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
| 4346 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
| 4347 // for the already waited time. This policy does not admit any new outcomes. | |
| 4348 // In the future, however, we might want to track the accumulated wait time and | |
| 4349 // adjust Millis accordingly if we encounter a spurious wakeup. | |
| 4350 | |
| 4351 const int MAXTIMEOUT = 0x10000000 ; | |
| 4352 DWORD rv = WAIT_TIMEOUT ; | |
| 4353 while (_Event < 0 && Millis > 0) { | |
| 4354 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
| 4355 if (Millis > MAXTIMEOUT) { | |
| 4356 prd = MAXTIMEOUT ; | |
| 4357 } | |
| 4358 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
| 4359 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
| 4360 if (rv == WAIT_TIMEOUT) { | |
| 4361 Millis -= prd ; | |
| 4362 } | |
| 4363 } | |
| 4364 v = _Event ; | |
| 4365 _Event = 0 ; | |
| 4366 OrderAccess::fence() ; | |
| 4367 // If we encounter a nearly simultanous timeout expiry and unpark() | |
| 4368 // we return OS_OK indicating we awoke via unpark(). | |
| 4369 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
| 4370 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
| 4371 } | |
| 4372 | |
| 4373 void os::PlatformEvent::park () { | |
| 4374 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4375 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 4376 // may call park(). | |
| 4377 int v ; | |
| 4378 for (;;) { | |
| 4379 v = _Event ; | |
| 4380 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4381 } | |
| 4382 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4383 if (v != 0) return ; | |
| 4384 | |
| 4385 // Do this the hard way by blocking ... | |
| 4386 // TODO: consider a brief spin here, gated on the success of recent | |
| 4387 // spin attempts by this thread. | |
| 4388 while (_Event < 0) { | |
| 4389 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
| 4390 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
| 4391 } | |
| 4392 | |
| 4393 // Usually we'll find _Event == 0 at this point, but as | |
| 4394 // an optional optimization we clear it, just in case can | |
| 4395 // multiple unpark() operations drove _Event up to 1. | |
| 4396 _Event = 0 ; | |
| 4397 OrderAccess::fence() ; | |
| 4398 guarantee (_Event >= 0, "invariant") ; | |
| 4399 } | |
| 4400 | |
| 4401 void os::PlatformEvent::unpark() { | |
| 4402 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4403 int v ; | |
| 4404 for (;;) { | |
| 4405 v = _Event ; // Increment _Event if it's < 1. | |
| 4406 if (v > 0) { | |
| 4407 // If it's already signaled just return. | |
| 4408 // The LD of _Event could have reordered or be satisfied | |
| 4409 // by a read-aside from this processor's write buffer. | |
| 4410 // To avoid problems execute a barrier and then | |
| 4411 // ratify the value. A degenerate CAS() would also work. | |
| 4412 // Viz., CAS (v+0, &_Event, v) == v). | |
| 4413 OrderAccess::fence() ; | |
| 4414 if (_Event == v) return ; | |
| 4415 continue ; | |
| 4416 } | |
| 4417 if (Atomic::cmpxchg (v+1, &_Event, v) == v) break ; | |
| 4418 } | |
| 4419 if (v < 0) { | |
| 4420 ::SetEvent (_ParkHandle) ; | |
| 4421 } | |
| 4422 } | |
| 4423 | |
| 4424 | |
| 4425 // JSR166 | |
| 4426 // ------------------------------------------------------- | |
| 4427 | |
| 4428 /* | |
| 4429 * The Windows implementation of Park is very straightforward: Basic | |
| 4430 * operations on Win32 Events turn out to have the right semantics to | |
| 4431 * use them directly. We opportunistically resuse the event inherited | |
| 4432 * from Monitor. | |
| 4433 */ | |
| 4434 | |
| 4435 | |
| 4436 void Parker::park(bool isAbsolute, jlong time) { | |
| 4437 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4438 // First, demultiplex/decode time arguments | |
| 4439 if (time < 0) { // don't wait | |
| 4440 return; | |
| 4441 } | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
4442 else if (time == 0 && !isAbsolute) { |
| 0 | 4443 time = INFINITE; |
| 4444 } | |
| 4445 else if (isAbsolute) { | |
| 4446 time -= os::javaTimeMillis(); // convert to relative time | |
| 4447 if (time <= 0) // already elapsed | |
| 4448 return; | |
| 4449 } | |
| 4450 else { // relative | |
| 4451 time /= 1000000; // Must coarsen from nanos to millis | |
| 4452 if (time == 0) // Wait for the minimal time unit if zero | |
| 4453 time = 1; | |
| 4454 } | |
| 4455 | |
| 4456 JavaThread* thread = (JavaThread*)(Thread::current()); | |
| 4457 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 4458 JavaThread *jt = (JavaThread *)thread; | |
| 4459 | |
| 4460 // Don't wait if interrupted or already triggered | |
| 4461 if (Thread::is_interrupted(thread, false) || | |
| 4462 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
| 4463 ResetEvent(_ParkEvent); | |
| 4464 return; | |
| 4465 } | |
| 4466 else { | |
| 4467 ThreadBlockInVM tbivm(jt); | |
| 4468 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 4469 jt->set_suspend_equivalent(); | |
| 4470 | |
| 4471 WaitForSingleObject(_ParkEvent, time); | |
| 4472 ResetEvent(_ParkEvent); | |
| 4473 | |
| 4474 // If externally suspended while waiting, re-suspend | |
| 4475 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 4476 jt->java_suspend_self(); | |
| 4477 } | |
| 4478 } | |
| 4479 } | |
| 4480 | |
| 4481 void Parker::unpark() { | |
| 4482 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4483 SetEvent(_ParkEvent); | |
| 4484 } | |
| 4485 | |
| 4486 // Run the specified command in a separate process. Return its exit value, | |
| 4487 // or -1 on failure (e.g. can't create a new process). | |
| 4488 int os::fork_and_exec(char* cmd) { | |
| 4489 STARTUPINFO si; | |
| 4490 PROCESS_INFORMATION pi; | |
| 4491 | |
| 4492 memset(&si, 0, sizeof(si)); | |
| 4493 si.cb = sizeof(si); | |
| 4494 memset(&pi, 0, sizeof(pi)); | |
| 4495 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
| 4496 cmd, // command line | |
| 4497 NULL, // process security attribute | |
| 4498 NULL, // thread security attribute | |
| 4499 TRUE, // inherits system handles | |
| 4500 0, // no creation flags | |
| 4501 NULL, // use parent's environment block | |
| 4502 NULL, // use parent's starting directory | |
| 4503 &si, // (in) startup information | |
| 4504 &pi); // (out) process information | |
| 4505 | |
| 4506 if (rslt) { | |
| 4507 // Wait until child process exits. | |
| 4508 WaitForSingleObject(pi.hProcess, INFINITE); | |
| 4509 | |
| 4510 DWORD exit_code; | |
| 4511 GetExitCodeProcess(pi.hProcess, &exit_code); | |
| 4512 | |
| 4513 // Close process and thread handles. | |
| 4514 CloseHandle(pi.hProcess); | |
| 4515 CloseHandle(pi.hThread); | |
| 4516 | |
| 4517 return (int)exit_code; | |
| 4518 } else { | |
| 4519 return -1; | |
| 4520 } | |
| 4521 } | |
| 4522 | |
| 4523 //-------------------------------------------------------------------------------------------------- | |
| 4524 // Non-product code | |
| 4525 | |
| 4526 static int mallocDebugIntervalCounter = 0; | |
| 4527 static int mallocDebugCounter = 0; | |
| 4528 bool os::check_heap(bool force) { | |
| 4529 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
| 4530 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
| 4531 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
| 4532 // wrong; at these points, eax contains the address of the offending block (I think). | |
| 4533 // To get to the exlicit error message(s) below, just continue twice. | |
| 4534 HANDLE heap = GetProcessHeap(); | |
| 4535 { HeapLock(heap); | |
| 4536 PROCESS_HEAP_ENTRY phe; | |
| 4537 phe.lpData = NULL; | |
| 4538 while (HeapWalk(heap, &phe) != 0) { | |
| 4539 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
| 4540 !HeapValidate(heap, 0, phe.lpData)) { | |
| 4541 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
| 4542 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
| 4543 fatal("corrupted C heap"); | |
| 4544 } | |
| 4545 } | |
| 4546 int err = GetLastError(); | |
| 4547 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
|
4548 fatal(err_msg("heap walk aborted with error %d", err)); |
| 0 | 4549 } |
| 4550 HeapUnlock(heap); | |
| 4551 } | |
| 4552 mallocDebugIntervalCounter = 0; | |
| 4553 } | |
| 4554 return true; | |
| 4555 } | |
| 4556 | |
| 4557 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4558 bool os::find(address addr, outputStream* st) { |
| 0 | 4559 // Nothing yet |
| 4560 return false; | |
| 4561 } | |
| 4562 | |
| 4563 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
| 4564 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
| 4565 | |
| 4566 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 4567 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
| 4568 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
| 4569 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 4570 | |
| 4571 if (os::is_memory_serialize_page(thread, addr)) | |
| 4572 return EXCEPTION_CONTINUE_EXECUTION; | |
| 4573 } | |
| 4574 | |
| 4575 return EXCEPTION_CONTINUE_SEARCH; | |
| 4576 } | |
| 4577 | |
| 4578 static int getLastErrorString(char *buf, size_t len) | |
| 4579 { | |
| 4580 long errval; | |
| 4581 | |
| 4582 if ((errval = GetLastError()) != 0) | |
| 4583 { | |
| 4584 /* DOS error */ | |
| 4585 size_t n = (size_t)FormatMessage( | |
| 4586 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, | |
| 4587 NULL, | |
| 4588 errval, | |
| 4589 0, | |
| 4590 buf, | |
| 4591 (DWORD)len, | |
| 4592 NULL); | |
| 4593 if (n > 3) { | |
| 4594 /* Drop final '.', CR, LF */ | |
| 4595 if (buf[n - 1] == '\n') n--; | |
| 4596 if (buf[n - 1] == '\r') n--; | |
| 4597 if (buf[n - 1] == '.') n--; | |
| 4598 buf[n] = '\0'; | |
| 4599 } | |
| 4600 return (int)n; | |
| 4601 } | |
| 4602 | |
| 4603 if (errno != 0) | |
| 4604 { | |
| 4605 /* C runtime error that has no corresponding DOS error code */ | |
| 4606 const char *s = strerror(errno); | |
| 4607 size_t n = strlen(s); | |
| 4608 if (n >= len) n = len - 1; | |
| 4609 strncpy(buf, s, n); | |
| 4610 buf[n] = '\0'; | |
| 4611 return (int)n; | |
| 4612 } | |
| 4613 return 0; | |
| 4614 } | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4615 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4616 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4617 // We don't build a headless jre for Windows |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4618 bool os::is_headless_jre() { return false; } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4619 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4620 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4621 typedef CRITICAL_SECTION mutex_t; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4622 #define mutexInit(m) InitializeCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4623 #define mutexDestroy(m) DeleteCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4624 #define mutexLock(m) EnterCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4625 #define mutexUnlock(m) LeaveCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4626 |
|
3429
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4627 static bool sock_initialized = FALSE; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4628 static mutex_t sockFnTableMutex; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4629 |
|
3429
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4630 static void initSock() { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4631 WSADATA wsadata; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4632 |
|
3429
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4633 if (!os::WinSock2Dll::WinSock2Available()) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4634 jio_fprintf(stderr, "Could not load Winsock 2 (error: %d)\n", |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4635 ::GetLastError()); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4636 return; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4637 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4638 if (sock_initialized == TRUE) return; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4639 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4640 ::mutexInit(&sockFnTableMutex); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4641 ::mutexLock(&sockFnTableMutex); |
|
3429
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4642 if (os::WinSock2Dll::WSAStartup(MAKEWORD(1,1), &wsadata) != 0) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4643 jio_fprintf(stderr, "Could not initialize Winsock\n"); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4644 } |
|
3429
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4645 sock_initialized = TRUE; |
|
1980
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) { |
|
3429
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4650 if (!sock_initialized) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4651 initSock(); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4652 } |
|
3429
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4653 if (!os::WinSock2Dll::WinSock2Available()) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4654 return NULL; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4655 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4656 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
|
1980
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 } |
|
3429
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4753 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4754 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4755 // Kernel32 API |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4756 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4757 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4758 BOOL os::Kernel32Dll::initialized = FALSE; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4759 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4760 assert(initialized && _GetLargePageMinimum != NULL, |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4761 "GetLargePageMinimumAvailable() not yet called"); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4762 return _GetLargePageMinimum(); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4763 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4764 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4765 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4766 if (!initialized) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4767 initialize(); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4768 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4769 return _GetLargePageMinimum != NULL; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4770 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4771 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4772 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4773 #ifndef JDK6_OR_EARLIER |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4774 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4775 void os::Kernel32Dll::initialize() { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4776 if (!initialized) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4777 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4778 assert(handle != NULL, "Just check"); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4779 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4780 initialized = TRUE; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4781 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4782 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4783 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4784 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4785 // Kernel32 API |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4786 inline BOOL os::Kernel32Dll::SwitchToThread() { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4787 return ::SwitchToThread(); |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4788 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4789 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4790 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4791 return true; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4792 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4793 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4794 // Help tools |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4795 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4796 return true; |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4797 } |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4798 |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4799 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
5def270bc147
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
2386
diff
changeset
|
4800 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
5def270bc147
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4801 } |
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4802 |
|
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4803 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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4804 return ::Module32First(hSnapshot, lpme); |
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4805 } |
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|
4806 |
|
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4807 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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4808 return ::Module32Next(hSnapshot, lpme); |
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4809 } |
|
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|
4810 |
|
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|
4811 |
|
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4812 inline BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
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4813 return true; |
|
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|
4814 } |
|
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|
4815 |
|
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|
4816 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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4817 ::GetNativeSystemInfo(lpSystemInfo); |
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4818 } |
|
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|
4819 |
|
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|
4820 // PSAPI API |
|
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4821 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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4822 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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4823 } |
|
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|
4824 |
|
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|
4825 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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4826 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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4827 } |
|
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|
4828 |
|
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|
4829 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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4830 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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4831 } |
|
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|
4832 |
|
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|
4833 inline BOOL os::PSApiDll::PSApiAvailable() { |
|
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4834 return true; |
|
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|
4835 } |
|
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|
4836 |
|
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|
4837 |
|
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|
4838 // WinSock2 API |
|
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|
4839 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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4840 return ::WSAStartup(wVersionRequested, lpWSAData); |
|
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|
4841 } |
|
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|
4842 |
|
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|
4843 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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|
4844 return ::gethostbyname(name); |
|
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|
4845 } |
|
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|
4846 |
|
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|
4847 inline BOOL os::WinSock2Dll::WinSock2Available() { |
|
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|
4848 return true; |
|
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|
4849 } |
|
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|
4850 |
|
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|
4851 // Advapi API |
|
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4852 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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4853 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
|
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4854 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
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4855 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
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|
4856 BufferLength, PreviousState, ReturnLength); |
|
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|
4857 } |
|
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|
4858 |
|
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|
4859 inline BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
|
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|
4860 PHANDLE TokenHandle) { |
|
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|
4861 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
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|
4862 } |
|
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|
4863 |
|
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|
4864 inline BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
|
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|
4865 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
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|
4866 } |
|
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|
4867 |
|
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|
4868 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
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|
4869 return true; |
|
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|
4870 } |
|
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|
4871 |
|
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|
4872 #else |
|
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|
4873 // Kernel32 API |
|
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|
4874 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
|
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|
4875 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
|
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|
4876 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
4877 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
4878 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
|
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|
4879 |
|
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|
4880 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
|
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|
4881 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
|
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|
4882 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
|
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|
4883 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
|
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|
4884 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
|
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|
4885 |
|
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|
4886 void os::Kernel32Dll::initialize() { |
|
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|
4887 if (!initialized) { |
|
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|
4888 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
|
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|
4889 assert(handle != NULL, "Just check"); |
|
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|
4890 |
|
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|
4891 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
|
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|
4892 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); |
|
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|
4893 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
|
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|
4894 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
|
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|
4895 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
|
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|
4896 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
|
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|
4897 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
|
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|
4898 |
|
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|
4899 initialized = TRUE; |
|
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|
4900 } |
|
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|
4901 } |
|
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|
4902 |
|
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|
4903 BOOL os::Kernel32Dll::SwitchToThread() { |
|
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|
4904 assert(initialized && _SwitchToThread != NULL, |
|
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|
4905 "SwitchToThreadAvailable() not yet called"); |
|
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|
4906 return _SwitchToThread(); |
|
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|
4907 } |
|
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|
4908 |
|
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|
4909 |
|
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|
4910 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
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4911 if (!initialized) { |
|
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|
4912 initialize(); |
|
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|
4913 } |
|
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4914 return _SwitchToThread != NULL; |
|
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|
4915 } |
|
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|
4916 |
|
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|
4917 // Help tools |
|
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4918 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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4919 if (!initialized) { |
|
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|
4920 initialize(); |
|
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4921 } |
|
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4922 return _CreateToolhelp32Snapshot != NULL && |
|
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4923 _Module32First != NULL && |
|
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4924 _Module32Next != NULL; |
|
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4925 } |
|
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|
4926 |
|
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|
4927 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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4928 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
|
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|
4929 "HelpToolsAvailable() not yet called"); |
|
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|
4930 |
|
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|
4931 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
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|
4932 } |
|
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|
4933 |
|
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|
4934 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
4935 assert(initialized && _Module32First != NULL, |
|
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|
4936 "HelpToolsAvailable() not yet called"); |
|
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|
4937 |
|
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|
4938 return _Module32First(hSnapshot, lpme); |
|
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|
4939 } |
|
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|
4940 |
|
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|
4941 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
4942 assert(initialized && _Module32Next != NULL, |
|
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|
4943 "HelpToolsAvailable() not yet called"); |
|
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|
4944 |
|
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|
4945 return _Module32Next(hSnapshot, lpme); |
|
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|
4946 } |
|
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|
4947 |
|
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|
4948 |
|
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|
4949 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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|
4950 if (!initialized) { |
|
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|
4951 initialize(); |
|
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|
4952 } |
|
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|
4953 return _GetNativeSystemInfo != NULL; |
|
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|
4954 } |
|
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|
4955 |
|
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|
4956 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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|
4957 assert(initialized && _GetNativeSystemInfo != NULL, |
|
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|
4958 "GetNativeSystemInfoAvailable() not yet called"); |
|
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|
4959 |
|
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|
4960 _GetNativeSystemInfo(lpSystemInfo); |
|
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|
4961 } |
|
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|
4962 |
|
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|
4963 // PSAPI API |
|
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|
4964 |
|
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|
4965 |
|
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|
4966 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
|
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|
4967 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
|
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|
4968 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
|
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|
4969 |
|
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|
4970 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
|
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|
4971 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
|
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|
4972 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
|
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|
4973 BOOL os::PSApiDll::initialized = FALSE; |
|
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|
4974 |
|
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|
4975 void os::PSApiDll::initialize() { |
|
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|
4976 if (!initialized) { |
|
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|
4977 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
|
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|
4978 if (handle != NULL) { |
|
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|
4979 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
|
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|
4980 "EnumProcessModules"); |
|
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|
4981 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
|
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|
4982 "GetModuleFileNameExA"); |
|
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|
4983 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
|
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|
4984 "GetModuleInformation"); |
|
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|
4985 } |
|
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|
4986 initialized = TRUE; |
|
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|
4987 } |
|
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|
4988 } |
|
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|
4989 |
|
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|
4990 |
|
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|
4991 |
|
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|
4992 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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|
4993 assert(initialized && _EnumProcessModules != NULL, |
|
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|
4994 "PSApiAvailable() not yet called"); |
|
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|
4995 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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|
4996 } |
|
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|
4997 |
|
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|
4998 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
4999 assert(initialized && _GetModuleFileNameEx != NULL, |
|
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|
5000 "PSApiAvailable() not yet called"); |
|
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|
5001 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5002 } |
|
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|
5003 |
|
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|
5004 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5005 assert(initialized && _GetModuleInformation != NULL, |
|
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|
5006 "PSApiAvailable() not yet called"); |
|
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|
5007 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5008 } |
|
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|
5009 |
|
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|
5010 BOOL os::PSApiDll::PSApiAvailable() { |
|
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|
5011 if (!initialized) { |
|
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|
5012 initialize(); |
|
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|
5013 } |
|
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|
5014 return _EnumProcessModules != NULL && |
|
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|
5015 _GetModuleFileNameEx != NULL && |
|
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|
5016 _GetModuleInformation != NULL; |
|
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|
5017 } |
|
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|
5018 |
|
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|
5019 |
|
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|
5020 // WinSock2 API |
|
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|
5021 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
|
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|
5022 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
|
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|
5023 |
|
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5024 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
|
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5025 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
|
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5026 BOOL os::WinSock2Dll::initialized = FALSE; |
|
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|
5027 |
|
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|
5028 void os::WinSock2Dll::initialize() { |
|
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5029 if (!initialized) { |
|
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5030 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
|
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5031 if (handle != NULL) { |
|
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5032 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
|
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5033 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
|
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|
5034 } |
|
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|
5035 initialized = TRUE; |
|
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|
5036 } |
|
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|
5037 } |
|
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|
5038 |
|
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|
5039 |
|
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|
5040 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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|
5041 assert(initialized && _WSAStartup != NULL, |
|
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|
5042 "WinSock2Available() not yet called"); |
|
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|
5043 return _WSAStartup(wVersionRequested, lpWSAData); |
|
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|
5044 } |
|
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|
5045 |
|
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|
5046 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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|
5047 assert(initialized && _gethostbyname != NULL, |
|
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|
5048 "WinSock2Available() not yet called"); |
|
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|
5049 return _gethostbyname(name); |
|
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|
5050 } |
|
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|
5051 |
|
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|
5052 BOOL os::WinSock2Dll::WinSock2Available() { |
|
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|
5053 if (!initialized) { |
|
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|
5054 initialize(); |
|
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|
5055 } |
|
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|
5056 return _WSAStartup != NULL && |
|
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|
5057 _gethostbyname != NULL; |
|
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|
5058 } |
|
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|
5059 |
|
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|
5060 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
|
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|
5061 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
|
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|
5062 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
|
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|
5063 |
|
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|
5064 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
|
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|
5065 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
|
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|
5066 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
|
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|
5067 BOOL os::Advapi32Dll::initialized = FALSE; |
|
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|
5068 |
|
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|
5069 void os::Advapi32Dll::initialize() { |
|
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|
5070 if (!initialized) { |
|
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|
5071 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
|
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|
5072 if (handle != NULL) { |
|
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|
5073 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
|
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|
5074 "AdjustTokenPrivileges"); |
|
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|
5075 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
|
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|
5076 "OpenProcessToken"); |
|
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|
5077 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
|
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|
5078 "LookupPrivilegeValue"); |
|
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|
5079 } |
|
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|
5080 initialized = TRUE; |
|
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|
5081 } |
|
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|
5082 } |
|
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|
5083 |
|
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|
5084 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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|
5085 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
|
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|
5086 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
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|
5087 assert(initialized && _AdjustTokenPrivileges != NULL, |
|
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|
5088 "AdvapiAvailable() not yet called"); |
|
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|
5089 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
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|
5090 BufferLength, PreviousState, ReturnLength); |
|
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|
5091 } |
|
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|
5092 |
|
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|
5093 BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
|
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|
5094 PHANDLE TokenHandle) { |
|
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|
5095 assert(initialized && _OpenProcessToken != NULL, |
|
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|
5096 "AdvapiAvailable() not yet called"); |
|
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|
5097 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
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|
5098 } |
|
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|
5099 |
|
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|
5100 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
|
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|
5101 assert(initialized && _LookupPrivilegeValue != NULL, |
|
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|
5102 "AdvapiAvailable() not yet called"); |
|
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|
5103 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
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|
5104 } |
|
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|
5105 |
|
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|
5106 BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
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|
5107 if (!initialized) { |
|
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|
5108 initialize(); |
|
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|
5109 } |
|
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|
5110 return _AdjustTokenPrivileges != NULL && |
|
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|
5111 _OpenProcessToken != NULL && |
|
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|
5112 _LookupPrivilegeValue != NULL; |
|
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|
5113 } |
|
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|
5114 |
|
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|
5115 #endif |
|
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|
5116 |