Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.cpp @ 6966:6cb0d32b828b
8001185: parsing of sun.boot.library.path in os::dll_build_name somewhat broken
Summary: dll_dir can contain multiple paths, need to parse them correctly when loading agents
Reviewed-by: dholmes, dlong
Contributed-by: bill.pittore@oracle.com
| author | bpittore |
|---|---|
| date | Wed, 07 Nov 2012 17:53:02 -0500 |
| parents | 5ec0c42da025 |
| children | 2cb439954abf f34d701e952e cd3d6a6b95d9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 6916 | 25 // Must be at least Windows 2000 or XP to use IsDebuggerPresent |
| 0 | 26 #define _WIN32_WINNT 0x500 |
| 27 | |
| 1972 | 28 // no precompiled headers |
| 29 #include "classfile/classLoader.hpp" | |
| 30 #include "classfile/systemDictionary.hpp" | |
| 31 #include "classfile/vmSymbols.hpp" | |
| 32 #include "code/icBuffer.hpp" | |
| 33 #include "code/vtableStubs.hpp" | |
| 34 #include "compiler/compileBroker.hpp" | |
| 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 | |
| 0 | 72 |
| 73 #ifdef _DEBUG | |
| 74 #include <crtdbg.h> | |
| 75 #endif | |
| 76 | |
| 77 | |
| 78 #include <windows.h> | |
| 79 #include <sys/types.h> | |
| 80 #include <sys/stat.h> | |
| 81 #include <sys/timeb.h> | |
| 82 #include <objidl.h> | |
| 83 #include <shlobj.h> | |
| 84 | |
| 85 #include <malloc.h> | |
| 86 #include <signal.h> | |
| 87 #include <direct.h> | |
| 88 #include <errno.h> | |
| 89 #include <fcntl.h> | |
| 90 #include <io.h> | |
| 91 #include <process.h> // For _beginthreadex(), _endthreadex() | |
| 92 #include <imagehlp.h> // For os::dll_address_to_function_name | |
| 93 /* for enumerating dll libraries */ | |
| 94 #include <vdmdbg.h> | |
| 95 | |
| 96 // for timer info max values which include all bits | |
| 97 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
| 98 | |
| 99 // For DLL loading/load error detection | |
| 100 // Values of PE COFF | |
| 101 #define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c | |
| 102 #define IMAGE_FILE_SIGNATURE_LENGTH 4 | |
| 103 | |
| 104 static HANDLE main_process; | |
| 105 static HANDLE main_thread; | |
| 106 static int main_thread_id; | |
| 107 | |
| 108 static FILETIME process_creation_time; | |
| 109 static FILETIME process_exit_time; | |
| 110 static FILETIME process_user_time; | |
| 111 static FILETIME process_kernel_time; | |
| 112 | |
| 113 #ifdef _M_IA64 | |
| 114 #define __CPU__ ia64 | |
| 115 #elif _M_AMD64 | |
| 116 #define __CPU__ amd64 | |
| 117 #else | |
| 118 #define __CPU__ i486 | |
| 119 #endif | |
| 120 | |
| 121 // save DLL module handle, used by GetModuleFileName | |
| 122 | |
| 123 HINSTANCE vm_lib_handle; | |
| 124 | |
| 125 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
| 126 switch (reason) { | |
| 127 case DLL_PROCESS_ATTACH: | |
| 128 vm_lib_handle = hinst; | |
| 129 if(ForceTimeHighResolution) | |
| 130 timeBeginPeriod(1L); | |
| 131 break; | |
| 132 case DLL_PROCESS_DETACH: | |
| 133 if(ForceTimeHighResolution) | |
| 134 timeEndPeriod(1L); | |
| 135 break; | |
| 136 default: | |
| 137 break; | |
| 138 } | |
| 139 return true; | |
| 140 } | |
| 141 | |
| 142 static inline double fileTimeAsDouble(FILETIME* time) { | |
| 143 const double high = (double) ((unsigned int) ~0); | |
| 144 const double split = 10000000.0; | |
| 145 double result = (time->dwLowDateTime / split) + | |
| 146 time->dwHighDateTime * (high/split); | |
| 147 return result; | |
| 148 } | |
| 149 | |
| 150 // Implementation of os | |
| 151 | |
| 152 bool os::getenv(const char* name, char* buffer, int len) { | |
| 153 int result = GetEnvironmentVariable(name, buffer, len); | |
| 154 return result > 0 && result < len; | |
| 155 } | |
| 156 | |
| 157 | |
| 158 // No setuid programs under Windows. | |
| 159 bool os::have_special_privileges() { | |
| 160 return false; | |
| 161 } | |
| 162 | |
| 163 | |
| 164 // This method is a periodic task to check for misbehaving JNI applications | |
| 165 // under CheckJNI, we can add any periodic checks here. | |
| 166 // For Windows at the moment does nothing | |
| 167 void os::run_periodic_checks() { | |
| 168 return; | |
| 169 } | |
| 170 | |
| 171 #ifndef _WIN64 | |
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172 // previous UnhandledExceptionFilter, if there is one |
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173 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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174 |
| 0 | 175 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
| 176 #endif | |
| 177 void os::init_system_properties_values() { | |
| 178 /* sysclasspath, java_home, dll_dir */ | |
| 179 { | |
| 180 char *home_path; | |
| 181 char *dll_path; | |
| 182 char *pslash; | |
| 183 char *bin = "\\bin"; | |
| 184 char home_dir[MAX_PATH]; | |
| 185 | |
| 186 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
| 187 os::jvm_path(home_dir, sizeof(home_dir)); | |
| 188 // Found the full path to jvm[_g].dll. | |
| 189 // Now cut the path to <java_home>/jre if we can. | |
| 190 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
| 191 pslash = strrchr(home_dir, '\\'); | |
| 192 if (pslash != NULL) { | |
| 193 *pslash = '\0'; /* get rid of \{client|server} */ | |
| 194 pslash = strrchr(home_dir, '\\'); | |
| 195 if (pslash != NULL) | |
| 196 *pslash = '\0'; /* get rid of \bin */ | |
| 197 } | |
| 198 } | |
| 199 | |
| 6197 | 200 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1, mtInternal); |
| 0 | 201 if (home_path == NULL) |
| 202 return; | |
| 203 strcpy(home_path, home_dir); | |
| 204 Arguments::set_java_home(home_path); | |
| 205 | |
| 6197 | 206 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1, mtInternal); |
| 0 | 207 if (dll_path == NULL) |
| 208 return; | |
| 209 strcpy(dll_path, home_dir); | |
| 210 strcat(dll_path, bin); | |
| 211 Arguments::set_dll_dir(dll_path); | |
| 212 | |
| 213 if (!set_boot_path('\\', ';')) | |
| 214 return; | |
| 215 } | |
| 216 | |
| 217 /* library_path */ | |
| 218 #define EXT_DIR "\\lib\\ext" | |
| 219 #define BIN_DIR "\\bin" | |
| 220 #define PACKAGE_DIR "\\Sun\\Java" | |
| 221 { | |
| 222 /* Win32 library search order (See the documentation for LoadLibrary): | |
| 223 * | |
| 224 * 1. The directory from which application is loaded. | |
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225 * 2. The system wide Java Extensions directory (Java only) |
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226 * 3. System directory (GetSystemDirectory) |
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227 * 4. Windows directory (GetWindowsDirectory) |
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228 * 5. The PATH environment variable |
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229 * 6. The current directory |
| 0 | 230 */ |
| 231 | |
| 232 char *library_path; | |
| 233 char tmp[MAX_PATH]; | |
| 234 char *path_str = ::getenv("PATH"); | |
| 235 | |
| 236 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
| 6197 | 237 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10, mtInternal); |
| 0 | 238 |
| 239 library_path[0] = '\0'; | |
| 240 | |
| 241 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
| 242 *(strrchr(tmp, '\\')) = '\0'; | |
| 243 strcat(library_path, tmp); | |
| 244 | |
| 245 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 246 strcat(library_path, ";"); | |
| 247 strcat(library_path, tmp); | |
| 248 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
| 249 | |
| 250 GetSystemDirectory(tmp, sizeof(tmp)); | |
| 251 strcat(library_path, ";"); | |
| 252 strcat(library_path, tmp); | |
| 253 | |
| 254 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 255 strcat(library_path, ";"); | |
| 256 strcat(library_path, tmp); | |
| 257 | |
| 258 if (path_str) { | |
| 259 strcat(library_path, ";"); | |
| 260 strcat(library_path, path_str); | |
| 261 } | |
| 262 | |
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263 strcat(library_path, ";."); |
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264 |
| 0 | 265 Arguments::set_library_path(library_path); |
| 6197 | 266 FREE_C_HEAP_ARRAY(char, library_path, mtInternal); |
| 0 | 267 } |
| 268 | |
| 269 /* Default extensions directory */ | |
| 270 { | |
| 271 char path[MAX_PATH]; | |
| 272 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
| 273 GetWindowsDirectory(path, MAX_PATH); | |
| 274 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
| 275 path, PACKAGE_DIR, EXT_DIR); | |
| 276 Arguments::set_ext_dirs(buf); | |
| 277 } | |
| 278 #undef EXT_DIR | |
| 279 #undef BIN_DIR | |
| 280 #undef PACKAGE_DIR | |
| 281 | |
| 282 /* Default endorsed standards directory. */ | |
| 283 { | |
| 284 #define ENDORSED_DIR "\\lib\\endorsed" | |
| 285 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
| 6197 | 286 char * buf = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 287 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); |
| 288 Arguments::set_endorsed_dirs(buf); | |
| 289 #undef ENDORSED_DIR | |
| 290 } | |
| 291 | |
| 292 #ifndef _WIN64 | |
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293 // set our UnhandledExceptionFilter and save any previous one |
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294 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
| 0 | 295 #endif |
| 296 | |
| 297 // Done | |
| 298 return; | |
| 299 } | |
| 300 | |
| 301 void os::breakpoint() { | |
| 302 DebugBreak(); | |
| 303 } | |
| 304 | |
| 305 // Invoked from the BREAKPOINT Macro | |
| 306 extern "C" void breakpoint() { | |
| 307 os::breakpoint(); | |
| 308 } | |
| 309 | |
| 6197 | 310 /* |
| 311 * RtlCaptureStackBackTrace Windows API may not exist prior to Windows XP. | |
| 312 * So far, this method is only used by Native Memory Tracking, which is | |
| 313 * only supported on Windows XP or later. | |
| 314 */ | |
| 315 address os::get_caller_pc(int n) { | |
| 316 #ifdef _NMT_NOINLINE_ | |
| 317 n ++; | |
| 318 #endif | |
| 319 address pc; | |
| 320 if (os::Kernel32Dll::RtlCaptureStackBackTrace(n + 1, 1, (PVOID*)&pc, NULL) == 1) { | |
| 321 return pc; | |
| 322 } | |
| 323 return NULL; | |
| 324 } | |
| 325 | |
| 326 | |
| 0 | 327 // os::current_stack_base() |
| 328 // | |
| 329 // Returns the base of the stack, which is the stack's | |
| 330 // starting address. This function must be called | |
| 331 // while running on the stack of the thread being queried. | |
| 332 | |
| 333 address os::current_stack_base() { | |
| 334 MEMORY_BASIC_INFORMATION minfo; | |
| 335 address stack_bottom; | |
| 336 size_t stack_size; | |
| 337 | |
| 338 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 339 stack_bottom = (address)minfo.AllocationBase; | |
| 340 stack_size = minfo.RegionSize; | |
| 341 | |
| 342 // Add up the sizes of all the regions with the same | |
| 343 // AllocationBase. | |
| 344 while( 1 ) | |
| 345 { | |
| 346 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
| 347 if ( stack_bottom == (address)minfo.AllocationBase ) | |
| 348 stack_size += minfo.RegionSize; | |
| 349 else | |
| 350 break; | |
| 351 } | |
| 352 | |
| 353 #ifdef _M_IA64 | |
| 354 // IA64 has memory and register stacks | |
| 355 stack_size = stack_size / 2; | |
| 356 #endif | |
| 357 return stack_bottom + stack_size; | |
| 358 } | |
| 359 | |
| 360 size_t os::current_stack_size() { | |
| 361 size_t sz; | |
| 362 MEMORY_BASIC_INFORMATION minfo; | |
| 363 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 364 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
| 365 return sz; | |
| 366 } | |
| 367 | |
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368 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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369 const struct tm* time_struct_ptr = localtime(clock); |
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370 if (time_struct_ptr != NULL) { |
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371 *res = *time_struct_ptr; |
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372 return res; |
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373 } |
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374 return NULL; |
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375 } |
| 0 | 376 |
| 377 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
| 378 | |
| 379 // Thread start routine for all new Java threads | |
| 380 static unsigned __stdcall java_start(Thread* thread) { | |
| 381 // Try to randomize the cache line index of hot stack frames. | |
| 382 // This helps when threads of the same stack traces evict each other's | |
| 383 // cache lines. The threads can be either from the same JVM instance, or | |
| 384 // from different JVM instances. The benefit is especially true for | |
| 385 // processors with hyperthreading technology. | |
| 386 static int counter = 0; | |
| 387 int pid = os::current_process_id(); | |
| 388 _alloca(((pid ^ counter++) & 7) * 128); | |
| 389 | |
| 390 OSThread* osthr = thread->osthread(); | |
| 391 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 392 | |
| 393 if (UseNUMA) { | |
| 394 int lgrp_id = os::numa_get_group_id(); | |
| 395 if (lgrp_id != -1) { | |
| 396 thread->set_lgrp_id(lgrp_id); | |
| 397 } | |
| 398 } | |
| 399 | |
| 400 | |
| 6916 | 401 // Install a win32 structured exception handler around every thread created |
| 402 // by VM, so VM can genrate error dump when an exception occurred in non- | |
| 403 // Java thread (e.g. VM thread). | |
| 404 __try { | |
| 405 thread->run(); | |
| 406 } __except(topLevelExceptionFilter( | |
| 407 (_EXCEPTION_POINTERS*)_exception_info())) { | |
| 408 // Nothing to do. | |
| 0 | 409 } |
| 410 | |
| 411 // One less thread is executing | |
| 412 // When the VMThread gets here, the main thread may have already exited | |
| 413 // which frees the CodeHeap containing the Atomic::add code | |
| 414 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 415 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 416 } | |
| 417 | |
| 418 return 0; | |
| 419 } | |
| 420 | |
| 421 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
| 422 // Allocate the OSThread object | |
| 423 OSThread* osthread = new OSThread(NULL, NULL); | |
| 424 if (osthread == NULL) return NULL; | |
| 425 | |
| 426 // Initialize support for Java interrupts | |
| 427 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 428 if (interrupt_event == NULL) { | |
| 429 delete osthread; | |
| 430 return NULL; | |
| 431 } | |
| 432 osthread->set_interrupt_event(interrupt_event); | |
| 433 | |
| 434 // Store info on the Win32 thread into the OSThread | |
| 435 osthread->set_thread_handle(thread_handle); | |
| 436 osthread->set_thread_id(thread_id); | |
| 437 | |
| 438 if (UseNUMA) { | |
| 439 int lgrp_id = os::numa_get_group_id(); | |
| 440 if (lgrp_id != -1) { | |
| 441 thread->set_lgrp_id(lgrp_id); | |
| 442 } | |
| 443 } | |
| 444 | |
| 445 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 446 osthread->set_state(INITIALIZED); | |
| 447 | |
| 448 return osthread; | |
| 449 } | |
| 450 | |
| 451 | |
| 452 bool os::create_attached_thread(JavaThread* thread) { | |
| 453 #ifdef ASSERT | |
| 454 thread->verify_not_published(); | |
| 455 #endif | |
| 456 HANDLE thread_h; | |
| 457 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
| 458 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
| 459 fatal("DuplicateHandle failed\n"); | |
| 460 } | |
| 461 OSThread* osthread = create_os_thread(thread, thread_h, | |
| 462 (int)current_thread_id()); | |
| 463 if (osthread == NULL) { | |
| 464 return false; | |
| 465 } | |
| 466 | |
| 467 // Initial thread state is RUNNABLE | |
| 468 osthread->set_state(RUNNABLE); | |
| 469 | |
| 470 thread->set_osthread(osthread); | |
| 471 return true; | |
| 472 } | |
| 473 | |
| 474 bool os::create_main_thread(JavaThread* thread) { | |
| 475 #ifdef ASSERT | |
| 476 thread->verify_not_published(); | |
| 477 #endif | |
| 478 if (_starting_thread == NULL) { | |
| 479 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
| 480 if (_starting_thread == NULL) { | |
| 481 return false; | |
| 482 } | |
| 483 } | |
| 484 | |
| 485 // The primordial thread is runnable from the start) | |
| 486 _starting_thread->set_state(RUNNABLE); | |
| 487 | |
| 488 thread->set_osthread(_starting_thread); | |
| 489 return true; | |
| 490 } | |
| 491 | |
| 492 // Allocate and initialize a new OSThread | |
| 493 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 494 unsigned thread_id; | |
| 495 | |
| 496 // Allocate the OSThread object | |
| 497 OSThread* osthread = new OSThread(NULL, NULL); | |
| 498 if (osthread == NULL) { | |
| 499 return false; | |
| 500 } | |
| 501 | |
| 502 // Initialize support for Java interrupts | |
| 503 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 504 if (interrupt_event == NULL) { | |
| 505 delete osthread; | |
| 506 return NULL; | |
| 507 } | |
| 508 osthread->set_interrupt_event(interrupt_event); | |
| 509 osthread->set_interrupted(false); | |
| 510 | |
| 511 thread->set_osthread(osthread); | |
| 512 | |
| 513 if (stack_size == 0) { | |
| 514 switch (thr_type) { | |
| 515 case os::java_thread: | |
| 516 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 517 if (JavaThread::stack_size_at_create() > 0) | |
| 518 stack_size = JavaThread::stack_size_at_create(); | |
| 519 break; | |
| 520 case os::compiler_thread: | |
| 521 if (CompilerThreadStackSize > 0) { | |
| 522 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 523 break; | |
| 524 } // else fall through: | |
| 525 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 526 case os::vm_thread: | |
| 527 case os::pgc_thread: | |
| 528 case os::cgc_thread: | |
| 529 case os::watcher_thread: | |
| 530 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 531 break; | |
| 532 } | |
| 533 } | |
| 534 | |
| 535 // Create the Win32 thread | |
| 536 // | |
| 537 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
| 538 // does not specify stack size. Instead, it specifies the size of | |
| 539 // initially committed space. The stack size is determined by | |
| 540 // PE header in the executable. If the committed "stack_size" is larger | |
| 541 // than default value in the PE header, the stack is rounded up to the | |
| 542 // nearest multiple of 1MB. For example if the launcher has default | |
| 543 // stack size of 320k, specifying any size less than 320k does not | |
| 544 // affect the actual stack size at all, it only affects the initial | |
| 545 // commitment. On the other hand, specifying 'stack_size' larger than | |
| 546 // default value may cause significant increase in memory usage, because | |
| 547 // not only the stack space will be rounded up to MB, but also the | |
| 548 // entire space is committed upfront. | |
| 549 // | |
| 550 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
| 551 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
| 552 // are not supposed to call CreateThread() directly according to MSDN | |
| 553 // document because JVM uses C runtime library. The good news is that the | |
| 554 // flag appears to work with _beginthredex() as well. | |
| 555 | |
| 556 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
| 557 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
| 558 #endif | |
| 559 | |
| 560 HANDLE thread_handle = | |
| 561 (HANDLE)_beginthreadex(NULL, | |
| 562 (unsigned)stack_size, | |
| 563 (unsigned (__stdcall *)(void*)) java_start, | |
| 564 thread, | |
| 565 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
| 566 &thread_id); | |
| 567 if (thread_handle == NULL) { | |
| 568 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
| 569 // without the flag. | |
| 570 thread_handle = | |
| 571 (HANDLE)_beginthreadex(NULL, | |
| 572 (unsigned)stack_size, | |
| 573 (unsigned (__stdcall *)(void*)) java_start, | |
| 574 thread, | |
| 575 CREATE_SUSPENDED, | |
| 576 &thread_id); | |
| 577 } | |
| 578 if (thread_handle == NULL) { | |
| 579 // Need to clean up stuff we've allocated so far | |
| 580 CloseHandle(osthread->interrupt_event()); | |
| 581 thread->set_osthread(NULL); | |
| 582 delete osthread; | |
| 583 return NULL; | |
| 584 } | |
| 585 | |
| 586 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 587 | |
| 588 // Store info on the Win32 thread into the OSThread | |
| 589 osthread->set_thread_handle(thread_handle); | |
| 590 osthread->set_thread_id(thread_id); | |
| 591 | |
| 592 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 593 osthread->set_state(INITIALIZED); | |
| 594 | |
| 595 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 596 return true; | |
| 597 } | |
| 598 | |
| 599 | |
| 600 // Free Win32 resources related to the OSThread | |
| 601 void os::free_thread(OSThread* osthread) { | |
| 602 assert(osthread != NULL, "osthread not set"); | |
| 603 CloseHandle(osthread->thread_handle()); | |
| 604 CloseHandle(osthread->interrupt_event()); | |
| 605 delete osthread; | |
| 606 } | |
| 607 | |
| 608 | |
| 609 static int has_performance_count = 0; | |
| 610 static jlong first_filetime; | |
| 611 static jlong initial_performance_count; | |
| 612 static jlong performance_frequency; | |
| 613 | |
| 614 | |
| 615 jlong as_long(LARGE_INTEGER x) { | |
| 616 jlong result = 0; // initialization to avoid warning | |
| 617 set_high(&result, x.HighPart); | |
| 618 set_low(&result, x.LowPart); | |
| 619 return result; | |
| 620 } | |
| 621 | |
| 622 | |
| 623 jlong os::elapsed_counter() { | |
| 624 LARGE_INTEGER count; | |
| 625 if (has_performance_count) { | |
| 626 QueryPerformanceCounter(&count); | |
| 627 return as_long(count) - initial_performance_count; | |
| 628 } else { | |
| 629 FILETIME wt; | |
| 630 GetSystemTimeAsFileTime(&wt); | |
| 631 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
| 632 } | |
| 633 } | |
| 634 | |
| 635 | |
| 636 jlong os::elapsed_frequency() { | |
| 637 if (has_performance_count) { | |
| 638 return performance_frequency; | |
| 639 } else { | |
| 640 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
| 641 return 10000000; | |
| 642 } | |
| 643 } | |
| 644 | |
| 645 | |
| 646 julong os::available_memory() { | |
| 647 return win32::available_memory(); | |
| 648 } | |
| 649 | |
| 650 julong os::win32::available_memory() { | |
|
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651 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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652 // value if total memory is larger than 4GB |
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653 MEMORYSTATUSEX ms; |
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654 ms.dwLength = sizeof(ms); |
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655 GlobalMemoryStatusEx(&ms); |
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656 |
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657 return (julong)ms.ullAvailPhys; |
| 0 | 658 } |
| 659 | |
| 660 julong os::physical_memory() { | |
| 661 return win32::physical_memory(); | |
| 662 } | |
| 663 | |
| 664 julong os::allocatable_physical_memory(julong size) { | |
|
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665 #ifdef _LP64 |
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666 return size; |
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667 #else |
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668 // Limit to 1400m because of the 2gb address space wall |
| 0 | 669 return MIN2(size, (julong)1400*M); |
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670 #endif |
| 0 | 671 } |
| 672 | |
| 673 // VC6 lacks DWORD_PTR | |
| 674 #if _MSC_VER < 1300 | |
| 675 typedef UINT_PTR DWORD_PTR; | |
| 676 #endif | |
| 677 | |
| 678 int os::active_processor_count() { | |
| 679 DWORD_PTR lpProcessAffinityMask = 0; | |
| 680 DWORD_PTR lpSystemAffinityMask = 0; | |
| 681 int proc_count = processor_count(); | |
| 682 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
| 683 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
| 684 // Nof active processors is number of bits in process affinity mask | |
| 685 int bitcount = 0; | |
| 686 while (lpProcessAffinityMask != 0) { | |
| 687 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
| 688 bitcount++; | |
| 689 } | |
| 690 return bitcount; | |
| 691 } else { | |
| 692 return proc_count; | |
| 693 } | |
| 694 } | |
| 695 | |
| 4006 | 696 void os::set_native_thread_name(const char *name) { |
| 697 // Not yet implemented. | |
| 698 return; | |
| 699 } | |
| 700 | |
| 0 | 701 bool os::distribute_processes(uint length, uint* distribution) { |
| 702 // Not yet implemented. | |
| 703 return false; | |
| 704 } | |
| 705 | |
| 706 bool os::bind_to_processor(uint processor_id) { | |
| 707 // Not yet implemented. | |
| 708 return false; | |
| 709 } | |
| 710 | |
| 711 static void initialize_performance_counter() { | |
| 712 LARGE_INTEGER count; | |
| 713 if (QueryPerformanceFrequency(&count)) { | |
| 714 has_performance_count = 1; | |
| 715 performance_frequency = as_long(count); | |
| 716 QueryPerformanceCounter(&count); | |
| 717 initial_performance_count = as_long(count); | |
| 718 } else { | |
| 719 has_performance_count = 0; | |
| 720 FILETIME wt; | |
| 721 GetSystemTimeAsFileTime(&wt); | |
| 722 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 723 } | |
| 724 } | |
| 725 | |
| 726 | |
| 727 double os::elapsedTime() { | |
| 728 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
| 729 } | |
| 730 | |
| 731 | |
| 732 // Windows format: | |
| 733 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
| 734 // Java format: | |
| 735 // Java standards require the number of milliseconds since 1/1/1970 | |
| 736 | |
| 737 // Constant offset - calculated using offset() | |
| 738 static jlong _offset = 116444736000000000; | |
| 739 // Fake time counter for reproducible results when debugging | |
| 740 static jlong fake_time = 0; | |
| 741 | |
| 742 #ifdef ASSERT | |
| 743 // Just to be safe, recalculate the offset in debug mode | |
| 744 static jlong _calculated_offset = 0; | |
| 745 static int _has_calculated_offset = 0; | |
| 746 | |
| 747 jlong offset() { | |
| 748 if (_has_calculated_offset) return _calculated_offset; | |
| 749 SYSTEMTIME java_origin; | |
| 750 java_origin.wYear = 1970; | |
| 751 java_origin.wMonth = 1; | |
| 752 java_origin.wDayOfWeek = 0; // ignored | |
| 753 java_origin.wDay = 1; | |
| 754 java_origin.wHour = 0; | |
| 755 java_origin.wMinute = 0; | |
| 756 java_origin.wSecond = 0; | |
| 757 java_origin.wMilliseconds = 0; | |
| 758 FILETIME jot; | |
| 759 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
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760 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
| 0 | 761 } |
| 762 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
| 763 _has_calculated_offset = 1; | |
| 764 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
| 765 return _calculated_offset; | |
| 766 } | |
| 767 #else | |
| 768 jlong offset() { | |
| 769 return _offset; | |
| 770 } | |
| 771 #endif | |
| 772 | |
| 773 jlong windows_to_java_time(FILETIME wt) { | |
| 774 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 775 return (a - offset()) / 10000; | |
| 776 } | |
| 777 | |
| 778 FILETIME java_to_windows_time(jlong l) { | |
| 779 jlong a = (l * 10000) + offset(); | |
| 780 FILETIME result; | |
| 781 result.dwHighDateTime = high(a); | |
| 782 result.dwLowDateTime = low(a); | |
| 783 return result; | |
| 784 } | |
| 785 | |
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786 // For now, we say that Windows does not support vtime. I have no idea |
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787 // whether it can actually be made to (DLD, 9/13/05). |
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788 |
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789 bool os::supports_vtime() { return false; } |
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790 bool os::enable_vtime() { return false; } |
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791 bool os::vtime_enabled() { return false; } |
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792 double os::elapsedVTime() { |
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793 // better than nothing, but not much |
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794 return elapsedTime(); |
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795 } |
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796 |
| 0 | 797 jlong os::javaTimeMillis() { |
| 798 if (UseFakeTimers) { | |
| 799 return fake_time++; | |
| 800 } else { | |
| 61 | 801 FILETIME wt; |
| 802 GetSystemTimeAsFileTime(&wt); | |
| 803 return windows_to_java_time(wt); | |
| 0 | 804 } |
| 805 } | |
| 806 | |
| 807 jlong os::javaTimeNanos() { | |
| 808 if (!has_performance_count) { | |
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809 return javaTimeMillis() * NANOSECS_PER_MILLISEC; // the best we can do. |
| 0 | 810 } else { |
| 811 LARGE_INTEGER current_count; | |
| 812 QueryPerformanceCounter(¤t_count); | |
| 813 double current = as_long(current_count); | |
| 814 double freq = performance_frequency; | |
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815 jlong time = (jlong)((current/freq) * NANOSECS_PER_SEC); |
| 0 | 816 return time; |
| 817 } | |
| 818 } | |
| 819 | |
| 820 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
| 821 if (!has_performance_count) { | |
| 822 // javaTimeMillis() doesn't have much percision, | |
| 823 // but it is not going to wrap -- so all 64 bits | |
| 824 info_ptr->max_value = ALL_64_BITS; | |
| 825 | |
| 826 // this is a wall clock timer, so may skip | |
| 827 info_ptr->may_skip_backward = true; | |
| 828 info_ptr->may_skip_forward = true; | |
| 829 } else { | |
| 830 jlong freq = performance_frequency; | |
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831 if (freq < NANOSECS_PER_SEC) { |
| 0 | 832 // the performance counter is 64 bits and we will |
| 833 // be multiplying it -- so no wrap in 64 bits | |
| 834 info_ptr->max_value = ALL_64_BITS; | |
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835 } else if (freq > NANOSECS_PER_SEC) { |
| 0 | 836 // use the max value the counter can reach to |
| 837 // determine the max value which could be returned | |
| 838 julong max_counter = (julong)ALL_64_BITS; | |
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839 info_ptr->max_value = (jlong)(max_counter / (freq / NANOSECS_PER_SEC)); |
| 0 | 840 } else { |
| 841 // the performance counter is 64 bits and we will | |
| 842 // be using it directly -- so no wrap in 64 bits | |
| 843 info_ptr->max_value = ALL_64_BITS; | |
| 844 } | |
| 845 | |
| 846 // using a counter, so no skipping | |
| 847 info_ptr->may_skip_backward = false; | |
| 848 info_ptr->may_skip_forward = false; | |
| 849 } | |
| 850 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
| 851 } | |
| 852 | |
| 853 char* os::local_time_string(char *buf, size_t buflen) { | |
| 854 SYSTEMTIME st; | |
| 855 GetLocalTime(&st); | |
| 856 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
| 857 st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); | |
| 858 return buf; | |
| 859 } | |
| 860 | |
| 861 bool os::getTimesSecs(double* process_real_time, | |
| 862 double* process_user_time, | |
| 863 double* process_system_time) { | |
| 864 HANDLE h_process = GetCurrentProcess(); | |
| 865 FILETIME create_time, exit_time, kernel_time, user_time; | |
| 866 BOOL result = GetProcessTimes(h_process, | |
| 867 &create_time, | |
| 868 &exit_time, | |
| 869 &kernel_time, | |
| 870 &user_time); | |
| 871 if (result != 0) { | |
| 872 FILETIME wt; | |
| 873 GetSystemTimeAsFileTime(&wt); | |
| 874 jlong rtc_millis = windows_to_java_time(wt); | |
| 875 jlong user_millis = windows_to_java_time(user_time); | |
| 876 jlong system_millis = windows_to_java_time(kernel_time); | |
| 877 *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS); | |
| 878 *process_user_time = ((double) user_millis) / ((double) MILLIUNITS); | |
| 879 *process_system_time = ((double) system_millis) / ((double) MILLIUNITS); | |
| 880 return true; | |
| 881 } else { | |
| 882 return false; | |
| 883 } | |
| 884 } | |
| 885 | |
| 886 void os::shutdown() { | |
| 887 | |
| 888 // allow PerfMemory to attempt cleanup of any persistent resources | |
| 889 perfMemory_exit(); | |
| 890 | |
| 891 // flush buffered output, finish log files | |
| 892 ostream_abort(); | |
| 893 | |
| 894 // Check for abort hook | |
| 895 abort_hook_t abort_hook = Arguments::abort_hook(); | |
| 896 if (abort_hook != NULL) { | |
| 897 abort_hook(); | |
| 898 } | |
| 899 } | |
| 900 | |
|
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901 |
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902 static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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903 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
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904 |
|
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905 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { |
|
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906 HINSTANCE dbghelp; |
|
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907 EXCEPTION_POINTERS ep; |
|
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908 MINIDUMP_EXCEPTION_INFORMATION mei; |
|
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909 MINIDUMP_EXCEPTION_INFORMATION* pmei; |
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910 |
|
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911 HANDLE hProcess = GetCurrentProcess(); |
|
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912 DWORD processId = GetCurrentProcessId(); |
|
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913 HANDLE dumpFile; |
|
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914 MINIDUMP_TYPE dumpType; |
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915 static const char* cwd; |
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916 |
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917 // If running on a client version of Windows and user has not explicitly enabled dumping |
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918 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) { |
|
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919 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false); |
|
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920 return; |
|
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921 // If running on a server version of Windows and user has explictly disabled dumping |
|
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922 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
|
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923 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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924 return; |
|
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925 } |
|
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926 |
|
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927 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0); |
|
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928 |
|
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929 if (dbghelp == NULL) { |
|
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930 VMError::report_coredump_status("Failed to load dbghelp.dll", false); |
|
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931 return; |
|
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|
932 } |
|
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933 |
|
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934 _MiniDumpWriteDump = CAST_TO_FN_PTR( |
|
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935 BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
|
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936 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION), |
|
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937 GetProcAddress(dbghelp, "MiniDumpWriteDump")); |
|
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938 |
|
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939 if (_MiniDumpWriteDump == NULL) { |
|
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940 VMError::report_coredump_status("Failed to find MiniDumpWriteDump() in module dbghelp.dll", false); |
|
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941 return; |
|
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|
942 } |
|
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943 |
|
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944 dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
|
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945 |
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946 // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
|
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947 // API_VERSION_NUMBER 11 or higher contains the ones we want though |
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948 #if API_VERSION_NUMBER >= 11 |
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949 dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
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950 MiniDumpWithUnloadedModules); |
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951 #endif |
|
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952 |
|
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953 cwd = get_current_directory(NULL, 0); |
|
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954 jio_snprintf(buffer, bufferSize, "%s\\hs_err_pid%u.mdmp",cwd, current_process_id()); |
|
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955 dumpFile = CreateFile(buffer, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
|
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956 |
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957 if (dumpFile == INVALID_HANDLE_VALUE) { |
|
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958 VMError::report_coredump_status("Failed to create file for dumping", false); |
|
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959 return; |
|
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|
960 } |
|
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961 if (exceptionRecord != NULL && contextRecord != NULL) { |
|
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962 ep.ContextRecord = (PCONTEXT) contextRecord; |
|
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963 ep.ExceptionRecord = (PEXCEPTION_RECORD) exceptionRecord; |
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964 |
|
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965 mei.ThreadId = GetCurrentThreadId(); |
|
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966 mei.ExceptionPointers = &ep; |
|
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967 pmei = &mei; |
|
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968 } else { |
|
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|
969 pmei = NULL; |
|
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|
970 } |
|
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|
971 |
|
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|
972 |
|
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973 // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
|
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974 // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
|
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975 if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == false && |
|
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976 _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == false) { |
|
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977 VMError::report_coredump_status("Call to MiniDumpWriteDump() failed", false); |
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978 } else { |
|
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979 VMError::report_coredump_status(buffer, true); |
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|
980 } |
|
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|
981 |
|
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982 CloseHandle(dumpFile); |
|
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|
983 } |
|
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|
984 |
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985 |
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986 |
| 0 | 987 void os::abort(bool dump_core) |
| 988 { | |
| 989 os::shutdown(); | |
| 990 // no core dump on Windows | |
| 991 ::exit(1); | |
| 992 } | |
| 993 | |
| 994 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 995 void os::die() { | |
| 996 _exit(-1); | |
| 997 } | |
| 998 | |
| 999 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
| 1000 // * dirent_md.c 1.15 00/02/02 | |
| 1001 // | |
| 1002 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
| 1003 | |
| 1004 /* Caller must have already run dirname through JVM_NativePath, which removes | |
| 1005 duplicate slashes and converts all instances of '/' into '\\'. */ | |
| 1006 | |
| 1007 DIR * | |
| 1008 os::opendir(const char *dirname) | |
| 1009 { | |
| 1010 assert(dirname != NULL, "just checking"); // hotspot change | |
| 6197 | 1011 DIR *dirp = (DIR *)malloc(sizeof(DIR), mtInternal); |
| 0 | 1012 DWORD fattr; // hotspot change |
| 1013 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
| 1014 | |
| 1015 if (dirp == 0) { | |
| 1016 errno = ENOMEM; | |
| 1017 return 0; | |
| 1018 } | |
| 1019 | |
| 1020 /* | |
| 1021 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
| 1022 * as a directory in FindFirstFile(). We detect this case here and | |
| 1023 * prepend the current drive name. | |
| 1024 */ | |
| 1025 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
| 1026 alt_dirname[0] = _getdrive() + 'A' - 1; | |
| 1027 alt_dirname[1] = ':'; | |
| 1028 alt_dirname[2] = '\\'; | |
| 1029 alt_dirname[3] = '\0'; | |
| 1030 dirname = alt_dirname; | |
| 1031 } | |
| 1032 | |
| 6197 | 1033 dirp->path = (char *)malloc(strlen(dirname) + 5, mtInternal); |
| 0 | 1034 if (dirp->path == 0) { |
| 6197 | 1035 free(dirp, mtInternal); |
| 0 | 1036 errno = ENOMEM; |
| 1037 return 0; | |
| 1038 } | |
| 1039 strcpy(dirp->path, dirname); | |
| 1040 | |
| 1041 fattr = GetFileAttributes(dirp->path); | |
| 1042 if (fattr == 0xffffffff) { | |
| 6197 | 1043 free(dirp->path, mtInternal); |
| 1044 free(dirp, mtInternal); | |
| 0 | 1045 errno = ENOENT; |
| 1046 return 0; | |
| 1047 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
| 6197 | 1048 free(dirp->path, mtInternal); |
| 1049 free(dirp, mtInternal); | |
| 0 | 1050 errno = ENOTDIR; |
| 1051 return 0; | |
| 1052 } | |
| 1053 | |
| 1054 /* Append "*.*", or possibly "\\*.*", to path */ | |
| 1055 if (dirp->path[1] == ':' | |
| 1056 && (dirp->path[2] == '\0' | |
| 1057 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
| 1058 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
| 1059 strcat(dirp->path, "*.*"); | |
| 1060 } else { | |
| 1061 strcat(dirp->path, "\\*.*"); | |
| 1062 } | |
| 1063 | |
| 1064 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
| 1065 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1066 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
| 6197 | 1067 free(dirp->path, mtInternal); |
| 1068 free(dirp, mtInternal); | |
| 0 | 1069 errno = EACCES; |
| 1070 return 0; | |
| 1071 } | |
| 1072 } | |
| 1073 return dirp; | |
| 1074 } | |
| 1075 | |
| 1076 /* parameter dbuf unused on Windows */ | |
| 1077 | |
| 1078 struct dirent * | |
| 1079 os::readdir(DIR *dirp, dirent *dbuf) | |
| 1080 { | |
| 1081 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1082 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1083 return 0; | |
| 1084 } | |
| 1085 | |
| 1086 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
| 1087 | |
| 1088 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
| 1089 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
| 1090 errno = EBADF; | |
| 1091 return 0; | |
| 1092 } | |
| 1093 FindClose(dirp->handle); | |
| 1094 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1095 } | |
| 1096 | |
| 1097 return &dirp->dirent; | |
| 1098 } | |
| 1099 | |
| 1100 int | |
| 1101 os::closedir(DIR *dirp) | |
| 1102 { | |
| 1103 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1104 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
| 1105 if (!FindClose(dirp->handle)) { | |
| 1106 errno = EBADF; | |
| 1107 return -1; | |
| 1108 } | |
| 1109 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1110 } | |
| 6197 | 1111 free(dirp->path, mtInternal); |
| 1112 free(dirp, mtInternal); | |
| 0 | 1113 return 0; |
| 1114 } | |
| 1115 | |
|
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1116 // This must be hard coded because it's the system's temporary |
|
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1117 // directory not the java application's temp directory, ala java.io.tmpdir. |
|
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1118 const char* os::get_temp_directory() { |
|
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1119 static char path_buf[MAX_PATH]; |
|
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1120 if (GetTempPath(MAX_PATH, path_buf)>0) |
|
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1121 return path_buf; |
|
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1122 else{ |
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1123 path_buf[0]='\0'; |
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1124 return path_buf; |
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1125 } |
| 0 | 1126 } |
| 1127 | |
| 691 | 1128 static bool file_exists(const char* filename) { |
| 1129 if (filename == NULL || strlen(filename) == 0) { | |
| 1130 return false; | |
| 1131 } | |
| 1132 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
| 1133 } | |
| 1134 | |
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1135 bool os::dll_build_name(char *buffer, size_t buflen, |
| 691 | 1136 const char* pname, const char* fname) { |
|
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1137 bool retval = false; |
| 691 | 1138 const size_t pnamelen = pname ? strlen(pname) : 0; |
| 1139 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
| 1140 | |
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1141 // Return error on buffer overflow. |
| 691 | 1142 if (pnamelen + strlen(fname) + 10 > buflen) { |
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1143 return retval; |
| 691 | 1144 } |
| 1145 | |
| 1146 if (pnamelen == 0) { | |
| 1147 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
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1148 retval = true; |
| 691 | 1149 } else if (c == ':' || c == '\\') { |
| 1150 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
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1151 retval = true; |
| 691 | 1152 } else if (strchr(pname, *os::path_separator()) != NULL) { |
| 1153 int n; | |
| 1154 char** pelements = split_path(pname, &n); | |
| 1155 for (int i = 0 ; i < n ; i++) { | |
| 1156 char* path = pelements[i]; | |
| 1157 // Really shouldn't be NULL, but check can't hurt | |
| 1158 size_t plen = (path == NULL) ? 0 : strlen(path); | |
| 1159 if (plen == 0) { | |
| 1160 continue; // skip the empty path values | |
| 1161 } | |
| 1162 const char lastchar = path[plen - 1]; | |
| 1163 if (lastchar == ':' || lastchar == '\\') { | |
| 1164 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
| 1165 } else { | |
| 1166 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
| 1167 } | |
| 1168 if (file_exists(buffer)) { | |
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1169 retval = true; |
| 691 | 1170 break; |
| 1171 } | |
| 242 | 1172 } |
| 691 | 1173 // release the storage |
| 1174 for (int i = 0 ; i < n ; i++) { | |
| 1175 if (pelements[i] != NULL) { | |
| 6197 | 1176 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
| 691 | 1177 } |
| 242 | 1178 } |
| 691 | 1179 if (pelements != NULL) { |
| 6197 | 1180 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
| 691 | 1181 } |
| 1182 } else { | |
| 1183 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
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1184 retval = true; |
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1185 } |
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1186 return retval; |
| 242 | 1187 } |
| 1188 | |
| 0 | 1189 // Needs to be in os specific directory because windows requires another |
| 1190 // header file <direct.h> | |
| 1191 const char* os::get_current_directory(char *buf, int buflen) { | |
| 1192 return _getcwd(buf, buflen); | |
| 1193 } | |
| 1194 | |
| 1195 //----------------------------------------------------------- | |
| 1196 // Helper functions for fatal error handler | |
| 1197 #ifdef _WIN64 | |
| 1198 // Helper routine which returns true if address in | |
| 1199 // within the NTDLL address space. | |
| 1200 // | |
| 1201 static bool _addr_in_ntdll( address addr ) | |
| 1202 { | |
| 1203 HMODULE hmod; | |
| 1204 MODULEINFO minfo; | |
| 1205 | |
| 1206 hmod = GetModuleHandle("NTDLL.DLL"); | |
| 1207 if ( hmod == NULL ) return false; | |
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1208 if ( !os::PSApiDll::GetModuleInformation( GetCurrentProcess(), hmod, |
| 0 | 1209 &minfo, sizeof(MODULEINFO)) ) |
| 1210 return false; | |
| 1211 | |
| 1212 if ( (addr >= minfo.lpBaseOfDll) && | |
| 1213 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
| 1214 return true; | |
| 1215 else | |
| 1216 return false; | |
| 1217 } | |
| 1218 #endif | |
| 1219 | |
| 1220 | |
| 1221 // Enumerate all modules for a given process ID | |
| 1222 // | |
| 1223 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
| 1224 // different API for doing this. We use PSAPI.DLL on NT based | |
| 1225 // Windows and ToolHelp on 95/98/Me. | |
| 1226 | |
| 1227 // Callback function that is called by enumerate_modules() on | |
| 1228 // every DLL module. | |
| 1229 // Input parameters: | |
| 1230 // int pid, | |
| 1231 // char* module_file_name, | |
| 1232 // address module_base_addr, | |
| 1233 // unsigned module_size, | |
| 1234 // void* param | |
| 1235 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
| 1236 | |
| 1237 // enumerate_modules for Windows NT, using PSAPI | |
| 1238 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
| 1239 { | |
| 1240 HANDLE hProcess ; | |
| 1241 | |
| 1242 # define MAX_NUM_MODULES 128 | |
| 1243 HMODULE modules[MAX_NUM_MODULES]; | |
| 1244 static char filename[ MAX_PATH ]; | |
| 1245 int result = 0; | |
| 1246 | |
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1247 if (!os::PSApiDll::PSApiAvailable()) { |
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1248 return 0; |
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1249 } |
| 0 | 1250 |
| 1251 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
| 1252 FALSE, pid ) ; | |
| 1253 if (hProcess == NULL) return 0; | |
| 1254 | |
| 1255 DWORD size_needed; | |
|
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1256 if (!os::PSApiDll::EnumProcessModules(hProcess, modules, |
| 0 | 1257 sizeof(modules), &size_needed)) { |
| 1258 CloseHandle( hProcess ); | |
| 1259 return 0; | |
| 1260 } | |
| 1261 | |
| 1262 // number of modules that are currently loaded | |
| 1263 int num_modules = size_needed / sizeof(HMODULE); | |
| 1264 | |
| 1265 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
| 1266 // Get Full pathname: | |
|
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1267 if(!os::PSApiDll::GetModuleFileNameEx(hProcess, modules[i], |
| 0 | 1268 filename, sizeof(filename))) { |
| 1269 filename[0] = '\0'; | |
| 1270 } | |
| 1271 | |
| 1272 MODULEINFO modinfo; | |
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1273 if (!os::PSApiDll::GetModuleInformation(hProcess, modules[i], |
| 0 | 1274 &modinfo, sizeof(modinfo))) { |
| 1275 modinfo.lpBaseOfDll = NULL; | |
| 1276 modinfo.SizeOfImage = 0; | |
| 1277 } | |
| 1278 | |
| 1279 // Invoke callback function | |
| 1280 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
| 1281 modinfo.SizeOfImage, param); | |
| 1282 if (result) break; | |
| 1283 } | |
| 1284 | |
| 1285 CloseHandle( hProcess ) ; | |
| 1286 return result; | |
| 1287 } | |
| 1288 | |
| 1289 | |
| 1290 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
| 1291 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
| 1292 { | |
| 1293 HANDLE hSnapShot ; | |
| 1294 static MODULEENTRY32 modentry ; | |
| 1295 int result = 0; | |
| 1296 | |
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1297 if (!os::Kernel32Dll::HelpToolsAvailable()) { |
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1298 return 0; |
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1299 } |
| 0 | 1300 |
| 1301 // Get a handle to a Toolhelp snapshot of the system | |
|
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1302 hSnapShot = os::Kernel32Dll::CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; |
| 0 | 1303 if( hSnapShot == INVALID_HANDLE_VALUE ) { |
| 1304 return FALSE ; | |
| 1305 } | |
| 1306 | |
| 1307 // iterate through all modules | |
| 1308 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1309 bool not_done = os::Kernel32Dll::Module32First( hSnapShot, &modentry ) != 0; |
| 0 | 1310 |
| 1311 while( not_done ) { | |
| 1312 // invoke the callback | |
| 1313 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
| 1314 modentry.modBaseSize, param); | |
| 1315 if (result) break; | |
| 1316 | |
| 1317 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
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1318 not_done = os::Kernel32Dll::Module32Next( hSnapShot, &modentry ) != 0; |
| 0 | 1319 } |
| 1320 | |
| 1321 CloseHandle(hSnapShot); | |
| 1322 return result; | |
| 1323 } | |
| 1324 | |
| 1325 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
| 1326 { | |
| 1327 // Get current process ID if caller doesn't provide it. | |
| 1328 if (!pid) pid = os::current_process_id(); | |
| 1329 | |
| 1330 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
| 1331 else return _enumerate_modules_windows(pid, func, param); | |
| 1332 } | |
| 1333 | |
| 1334 struct _modinfo { | |
| 1335 address addr; | |
| 1336 char* full_path; // point to a char buffer | |
| 1337 int buflen; // size of the buffer | |
| 1338 address base_addr; | |
| 1339 }; | |
| 1340 | |
| 1341 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
| 1342 unsigned size, void * param) { | |
| 1343 struct _modinfo *pmod = (struct _modinfo *)param; | |
| 1344 if (!pmod) return -1; | |
| 1345 | |
| 1346 if (base_addr <= pmod->addr && | |
| 1347 base_addr+size > pmod->addr) { | |
| 1348 // if a buffer is provided, copy path name to the buffer | |
| 1349 if (pmod->full_path) { | |
| 1350 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
| 1351 } | |
| 1352 pmod->base_addr = base_addr; | |
| 1353 return 1; | |
| 1354 } | |
| 1355 return 0; | |
| 1356 } | |
| 1357 | |
| 1358 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1359 int buflen, int* offset) { | |
| 1360 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always | |
| 1361 // return the full path to the DLL file, sometimes it returns path | |
| 1362 // to the corresponding PDB file (debug info); sometimes it only | |
| 1363 // returns partial path, which makes life painful. | |
| 1364 | |
| 1365 struct _modinfo mi; | |
| 1366 mi.addr = addr; | |
| 1367 mi.full_path = buf; | |
| 1368 mi.buflen = buflen; | |
| 1369 int pid = os::current_process_id(); | |
| 1370 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { | |
| 1371 // buf already contains path name | |
| 1372 if (offset) *offset = addr - mi.base_addr; | |
| 1373 return true; | |
| 1374 } else { | |
| 1375 if (buf) buf[0] = '\0'; | |
| 1376 if (offset) *offset = -1; | |
| 1377 return false; | |
| 1378 } | |
| 1379 } | |
| 1380 | |
| 1381 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1382 int buflen, int *offset) { | |
| 4803 | 1383 if (Decoder::decode(addr, buf, buflen, offset)) { |
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1384 return true; |
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1385 } |
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1386 if (offset != NULL) *offset = -1; |
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1387 if (buf != NULL) buf[0] = '\0'; |
| 0 | 1388 return false; |
| 1389 } | |
| 1390 | |
| 1391 // save the start and end address of jvm.dll into param[0] and param[1] | |
| 1392 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
| 1393 unsigned size, void * param) { | |
| 1394 if (!param) return -1; | |
| 1395 | |
| 1396 if (base_addr <= (address)_locate_jvm_dll && | |
| 1397 base_addr+size > (address)_locate_jvm_dll) { | |
| 1398 ((address*)param)[0] = base_addr; | |
| 1399 ((address*)param)[1] = base_addr + size; | |
| 1400 return 1; | |
| 1401 } | |
| 1402 return 0; | |
| 1403 } | |
| 1404 | |
| 1405 address vm_lib_location[2]; // start and end address of jvm.dll | |
| 1406 | |
| 1407 // check if addr is inside jvm.dll | |
| 1408 bool os::address_is_in_vm(address addr) { | |
| 1409 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
| 1410 int pid = os::current_process_id(); | |
| 1411 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
| 1412 assert(false, "Can't find jvm module."); | |
| 1413 return false; | |
| 1414 } | |
| 1415 } | |
| 1416 | |
| 1417 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
| 1418 } | |
| 1419 | |
| 1420 // print module info; param is outputStream* | |
| 1421 static int _print_module(int pid, char* fname, address base, | |
| 1422 unsigned size, void* param) { | |
| 1423 if (!param) return -1; | |
| 1424 | |
| 1425 outputStream* st = (outputStream*)param; | |
| 1426 | |
| 1427 address end_addr = base + size; | |
| 1428 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
| 1429 return 0; | |
| 1430 } | |
| 1431 | |
| 1432 // Loads .dll/.so and | |
| 1433 // in case of error it checks if .dll/.so was built for the | |
| 1434 // same architecture as Hotspot is running on | |
| 1435 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
| 1436 { | |
| 1437 void * result = LoadLibrary(name); | |
| 1438 if (result != NULL) | |
| 1439 { | |
| 1440 return result; | |
| 1441 } | |
| 1442 | |
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1443 DWORD errcode = GetLastError(); |
| 0 | 1444 if (errcode == ERROR_MOD_NOT_FOUND) { |
| 1445 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
| 1446 ebuf[ebuflen-1]='\0'; | |
| 1447 return NULL; | |
| 1448 } | |
| 1449 | |
| 1450 // Parsing dll below | |
| 1451 // If we can read dll-info and find that dll was built | |
| 1452 // for an architecture other than Hotspot is running in | |
| 1453 // - then print to buffer "DLL was built for a different architecture" | |
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1454 // else call os::lasterror to obtain system error message |
| 0 | 1455 |
| 1456 // Read system error message into ebuf | |
| 1457 // It may or may not be overwritten below (in the for loop and just above) | |
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1458 lasterror(ebuf, (size_t) ebuflen); |
| 0 | 1459 ebuf[ebuflen-1]='\0'; |
| 1460 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
| 1461 if (file_descriptor<0) | |
| 1462 { | |
| 1463 return NULL; | |
| 1464 } | |
| 1465 | |
| 1466 uint32_t signature_offset; | |
| 1467 uint16_t lib_arch=0; | |
| 1468 bool failed_to_get_lib_arch= | |
| 1469 ( | |
| 1470 //Go to position 3c in the dll | |
| 1471 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
| 1472 || | |
| 1473 // Read loacation of signature | |
| 1474 (sizeof(signature_offset)!= | |
| 1475 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
| 1476 || | |
| 1477 //Go to COFF File Header in dll | |
| 1478 //that is located after"signature" (4 bytes long) | |
| 1479 (os::seek_to_file_offset(file_descriptor, | |
| 1480 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
| 1481 || | |
| 1482 //Read field that contains code of architecture | |
| 1483 // that dll was build for | |
| 1484 (sizeof(lib_arch)!= | |
| 1485 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
| 1486 ); | |
| 1487 | |
| 1488 ::close(file_descriptor); | |
| 1489 if (failed_to_get_lib_arch) | |
| 1490 { | |
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1491 // file i/o error - report os::lasterror(...) msg |
| 0 | 1492 return NULL; |
| 1493 } | |
| 1494 | |
| 1495 typedef struct | |
| 1496 { | |
| 1497 uint16_t arch_code; | |
| 1498 char* arch_name; | |
| 1499 } arch_t; | |
| 1500 | |
| 1501 static const arch_t arch_array[]={ | |
| 1502 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
| 1503 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
| 1504 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
| 1505 }; | |
| 1506 #if (defined _M_IA64) | |
| 1507 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
| 1508 #elif (defined _M_AMD64) | |
| 1509 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
| 1510 #elif (defined _M_IX86) | |
| 1511 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
| 1512 #else | |
| 1513 #error Method os::dll_load requires that one of following \ | |
| 1514 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
| 1515 #endif | |
| 1516 | |
| 1517 | |
| 1518 // Obtain a string for printf operation | |
| 1519 // lib_arch_str shall contain string what platform this .dll was built for | |
| 1520 // running_arch_str shall string contain what platform Hotspot was built for | |
| 1521 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
| 1522 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
| 1523 { | |
| 1524 if (lib_arch==arch_array[i].arch_code) | |
| 1525 lib_arch_str=arch_array[i].arch_name; | |
| 1526 if (running_arch==arch_array[i].arch_code) | |
| 1527 running_arch_str=arch_array[i].arch_name; | |
| 1528 } | |
| 1529 | |
| 1530 assert(running_arch_str, | |
| 1531 "Didn't find runing architecture code in arch_array"); | |
| 1532 | |
| 1533 // If the architure is right | |
|
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
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4720
diff
changeset
|
1534 // but some other error took place - report os::lasterror(...) msg |
| 0 | 1535 if (lib_arch == running_arch) |
| 1536 { | |
| 1537 return NULL; | |
| 1538 } | |
| 1539 | |
| 1540 if (lib_arch_str!=NULL) | |
| 1541 { | |
| 1542 ::_snprintf(ebuf, ebuflen-1, | |
| 1543 "Can't load %s-bit .dll on a %s-bit platform", | |
| 1544 lib_arch_str,running_arch_str); | |
| 1545 } | |
| 1546 else | |
| 1547 { | |
| 1548 // don't know what architecture this dll was build for | |
| 1549 ::_snprintf(ebuf, ebuflen-1, | |
| 1550 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
| 1551 lib_arch,running_arch_str); | |
| 1552 } | |
| 1553 | |
| 1554 return NULL; | |
| 1555 } | |
| 1556 | |
| 1557 | |
| 1558 void os::print_dll_info(outputStream *st) { | |
| 1559 int pid = os::current_process_id(); | |
| 1560 st->print_cr("Dynamic libraries:"); | |
| 1561 enumerate_modules(pid, _print_module, (void *)st); | |
| 1562 } | |
| 1563 | |
|
6080
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1564 void os::print_os_info_brief(outputStream* st) { |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1565 os::print_os_info(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1566 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
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6044
diff
changeset
|
1567 |
| 0 | 1568 void os::print_os_info(outputStream* st) { |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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|
1569 st->print("OS:"); |
|
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|
1570 |
|
6080
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7165755: OS Information much longer on linux than other platforms
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6044
diff
changeset
|
1571 os::win32::print_windows_version(st); |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1572 } |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
nloodin
parents:
6044
diff
changeset
|
1573 |
|
7432b9db36ff
7165755: OS Information much longer on linux than other platforms
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diff
changeset
|
1574 void os::win32::print_windows_version(outputStream* st) { |
|
273
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|
1575 OSVERSIONINFOEX osvi; |
|
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diff
changeset
|
1576 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
|
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diff
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|
1577 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
|
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|
1578 |
|
6f17a7c9f8b4
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changeset
|
1579 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
|
6f17a7c9f8b4
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changeset
|
1580 st->print_cr("N/A"); |
|
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|
1581 return; |
|
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diff
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|
1582 } |
|
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|
1583 |
|
6f17a7c9f8b4
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diff
changeset
|
1584 int os_vers = osvi.dwMajorVersion * 1000 + osvi.dwMinorVersion; |
|
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|
1585 if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) { |
|
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|
1586 switch (os_vers) { |
|
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|
1587 case 3051: st->print(" Windows NT 3.51"); break; |
|
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changeset
|
1588 case 4000: st->print(" Windows NT 4.0"); break; |
|
6f17a7c9f8b4
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diff
changeset
|
1589 case 5000: st->print(" Windows 2000"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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242
diff
changeset
|
1590 case 5001: st->print(" Windows XP"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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diff
changeset
|
1591 case 5002: |
|
962
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
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diff
changeset
|
1592 case 6000: |
|
6126
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1593 case 6001: |
|
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1594 case 6002: { |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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242
diff
changeset
|
1595 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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242
diff
changeset
|
1596 // find out whether we are running on 64 bit processor or not. |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1597 SYSTEM_INFO si; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1598 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
1599 if (!os::Kernel32Dll::GetNativeSystemInfoAvailable()){ |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1600 GetSystemInfo(&si); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1601 } else { |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
1602 os::Kernel32Dll::GetNativeSystemInfo(&si); |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1603 } |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1604 if (os_vers == 5002) { |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1605 if (osvi.wProductType == VER_NT_WORKSTATION && |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1606 si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1607 st->print(" Windows XP x64 Edition"); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1608 else |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1609 st->print(" Windows Server 2003 family"); |
|
962
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1610 } else if (os_vers == 6000) { |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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parents:
242
diff
changeset
|
1611 if (osvi.wProductType == VER_NT_WORKSTATION) |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
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242
diff
changeset
|
1612 st->print(" Windows Vista"); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
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242
diff
changeset
|
1613 else |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1614 st->print(" Windows Server 2008"); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1615 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1616 st->print(" , 64 bit"); |
|
962
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1617 } else if (os_vers == 6001) { |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1618 if (osvi.wProductType == VER_NT_WORKSTATION) { |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1619 st->print(" Windows 7"); |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1620 } else { |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1621 // Unrecognized windows, print out its major and minor versions |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1622 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1623 } |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1624 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1625 st->print(" , 64 bit"); |
|
6126
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1626 } else if (os_vers == 6002) { |
|
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1627 if (osvi.wProductType == VER_NT_WORKSTATION) { |
|
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1628 st->print(" Windows 8"); |
|
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1629 } else { |
|
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1630 st->print(" Windows Server 2012"); |
|
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1631 } |
|
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1632 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
de909f001528
7170275: os::print_os_info needs to know about Windows 8
mikael
parents:
6080
diff
changeset
|
1633 st->print(" , 64 bit"); |
|
962
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1634 } else { // future os |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1635 // Unrecognized windows, print out its major and minor versions |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1636 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1637 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) |
|
aafa4232dfd7
6821003: Update hotspot windows os_win32 for windows 7
asaha
parents:
877
diff
changeset
|
1638 st->print(" , 64 bit"); |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1639 } |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1640 break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
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242
diff
changeset
|
1641 } |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1642 default: // future windows, print out its major and minor versions |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
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242
diff
changeset
|
1643 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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diff
changeset
|
1644 } |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1645 } else { |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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242
diff
changeset
|
1646 switch (os_vers) { |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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242
diff
changeset
|
1647 case 4000: st->print(" Windows 95"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
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242
diff
changeset
|
1648 case 4010: st->print(" Windows 98"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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242
diff
changeset
|
1649 case 4090: st->print(" Windows Me"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
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242
diff
changeset
|
1650 default: // future windows, print out its major and minor versions |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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diff
changeset
|
1651 st->print(" Windows %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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|
1652 } |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
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diff
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|
1653 } |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
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diff
changeset
|
1654 st->print(" Build %d", osvi.dwBuildNumber); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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|
1655 st->print(" %s", osvi.szCSDVersion); // service pack |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
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|
1656 st->cr(); |
| 0 | 1657 } |
| 1658 | |
|
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1659 void os::pd_print_cpu_info(outputStream* st) { |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1660 // Nothing to do for now. |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1661 } |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1662 |
| 0 | 1663 void os::print_memory_info(outputStream* st) { |
| 1664 st->print("Memory:"); | |
| 1665 st->print(" %dk page", os::vm_page_size()>>10); | |
| 1666 | |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1667 // 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
|
1668 // 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
|
1669 MEMORYSTATUSEX ms; |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1670 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
|
1671 GlobalMemoryStatusEx(&ms); |
| 0 | 1672 |
| 1673 st->print(", physical %uk", os::physical_memory() >> 10); | |
| 1674 st->print("(%uk free)", os::available_memory() >> 10); | |
| 1675 | |
|
877
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1676 st->print(", swap %uk", ms.ullTotalPageFile >> 10); |
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1677 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
| 0 | 1678 st->cr(); |
| 1679 } | |
| 1680 | |
| 1681 void os::print_siginfo(outputStream *st, void *siginfo) { | |
| 1682 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
| 1683 st->print("siginfo:"); | |
| 1684 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
| 1685 | |
| 1686 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 1687 er->NumberParameters >= 2) { | |
| 1688 switch (er->ExceptionInformation[0]) { | |
| 1689 case 0: st->print(", reading address"); break; | |
| 1690 case 1: st->print(", writing address"); break; | |
| 1691 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
| 1692 er->ExceptionInformation[0]); | |
| 1693 } | |
| 1694 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
| 1695 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
| 1696 er->NumberParameters >= 2 && UseSharedSpaces) { | |
| 1697 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 1698 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
| 1699 st->print("\n\nError accessing class data sharing archive." \ | |
| 1700 " Mapped file inaccessible during execution, " \ | |
| 1701 " possible disk/network problem."); | |
| 1702 } | |
| 1703 } else { | |
| 1704 int num = er->NumberParameters; | |
| 1705 if (num > 0) { | |
| 1706 st->print(", ExceptionInformation="); | |
| 1707 for (int i = 0; i < num; i++) { | |
| 1708 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
| 1709 } | |
| 1710 } | |
| 1711 } | |
| 1712 st->cr(); | |
| 1713 } | |
| 1714 | |
| 1715 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 1716 // do nothing | |
| 1717 } | |
| 1718 | |
| 1719 static char saved_jvm_path[MAX_PATH] = {0}; | |
| 1720 | |
| 1721 // Find the full path to the current module, jvm.dll or jvm_g.dll | |
| 1722 void os::jvm_path(char *buf, jint buflen) { | |
| 1723 // Error checking. | |
| 1724 if (buflen < MAX_PATH) { | |
| 1725 assert(false, "must use a large-enough buffer"); | |
| 1726 buf[0] = '\0'; | |
| 1727 return; | |
| 1728 } | |
| 1729 // Lazy resolve the path to current module. | |
| 1730 if (saved_jvm_path[0] != 0) { | |
| 1731 strcpy(buf, saved_jvm_path); | |
| 1732 return; | |
| 1733 } | |
| 1734 | |
| 1985 | 1735 buf[0] = '\0'; |
|
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1736 if (Arguments::created_by_gamma_launcher()) { |
| 1985 | 1737 // Support for the gamma launcher. Check for an |
|
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|
1738 // JAVA_HOME environment variable |
| 1985 | 1739 // and fix up the path so it looks like |
| 1740 // libjvm.so is installed there (append a fake suffix | |
| 1741 // hotspot/libjvm.so). | |
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1742 char* java_home_var = ::getenv("JAVA_HOME"); |
| 1985 | 1743 if (java_home_var != NULL && java_home_var[0] != 0) { |
| 1744 | |
| 1745 strncpy(buf, java_home_var, buflen); | |
| 1746 | |
| 1747 // determine if this is a legacy image or modules image | |
| 1748 // modules image doesn't have "jre" subdirectory | |
| 1749 size_t len = strlen(buf); | |
| 1750 char* jrebin_p = buf + len; | |
| 1751 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
| 1752 if (0 != _access(buf, 0)) { | |
| 1753 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
| 1754 } | |
| 1755 len = strlen(buf); | |
| 1756 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
| 1757 } | |
| 1758 } | |
| 1759 | |
| 1760 if(buf[0] == '\0') { | |
| 0 | 1761 GetModuleFileName(vm_lib_handle, buf, buflen); |
| 1985 | 1762 } |
| 0 | 1763 strcpy(saved_jvm_path, buf); |
| 1764 } | |
| 1765 | |
| 1766 | |
| 1767 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 1768 #ifndef _WIN64 | |
| 1769 st->print("_"); | |
| 1770 #endif | |
| 1771 } | |
| 1772 | |
| 1773 | |
| 1774 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 1775 #ifndef _WIN64 | |
| 1776 st->print("@%d", args_size * sizeof(int)); | |
| 1777 #endif | |
| 1778 } | |
| 1779 | |
|
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1780 // This method is a copy of JDK's sysGetLastErrorString |
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1781 // from src/windows/hpi/src/system_md.c |
|
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1782 |
|
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1783 size_t os::lasterror(char* buf, size_t len) { |
|
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1784 DWORD errval; |
|
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|
1785 |
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1786 if ((errval = GetLastError()) != 0) { |
|
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1787 // DOS error |
|
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1788 size_t n = (size_t)FormatMessage( |
|
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1789 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
|
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1790 NULL, |
|
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|
1791 errval, |
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|
1792 0, |
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|
1793 buf, |
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1794 (DWORD)len, |
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|
1795 NULL); |
|
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|
1796 if (n > 3) { |
|
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1797 // Drop final '.', CR, LF |
|
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1798 if (buf[n - 1] == '\n') n--; |
|
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1799 if (buf[n - 1] == '\r') n--; |
|
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1800 if (buf[n - 1] == '.') n--; |
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1801 buf[n] = '\0'; |
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|
1802 } |
|
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|
1803 return n; |
|
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|
1804 } |
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|
1805 |
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1806 if (errno != 0) { |
|
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1807 // C runtime error that has no corresponding DOS error code |
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1808 const char* s = strerror(errno); |
|
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1809 size_t n = strlen(s); |
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1810 if (n >= len) n = len - 1; |
|
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1811 strncpy(buf, s, n); |
|
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1812 buf[n] = '\0'; |
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|
1813 return n; |
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|
1814 } |
|
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1815 |
|
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|
1816 return 0; |
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|
1817 } |
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1818 |
|
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1819 int os::get_last_error() { |
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1820 DWORD error = GetLastError(); |
|
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1821 if (error == 0) |
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1822 error = errno; |
|
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1823 return (int)error; |
|
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1824 } |
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1825 |
| 0 | 1826 // sun.misc.Signal |
| 1827 // NOTE that this is a workaround for an apparent kernel bug where if | |
| 1828 // a signal handler for SIGBREAK is installed then that signal handler | |
| 1829 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
| 1830 // See bug 4416763. | |
| 1831 static void (*sigbreakHandler)(int) = NULL; | |
| 1832 | |
| 1833 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 1834 os::signal_notify(sig); | |
| 1835 // We need to reinstate the signal handler each time... | |
| 1836 os::signal(sig, (void*)UserHandler); | |
| 1837 } | |
| 1838 | |
| 1839 void* os::user_handler() { | |
| 1840 return (void*) UserHandler; | |
| 1841 } | |
| 1842 | |
| 1843 void* os::signal(int signal_number, void* handler) { | |
| 1844 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
| 1845 void (*oldHandler)(int) = sigbreakHandler; | |
| 1846 sigbreakHandler = (void (*)(int)) handler; | |
| 1847 return (void*) oldHandler; | |
| 1848 } else { | |
| 1849 return (void*)::signal(signal_number, (void (*)(int))handler); | |
| 1850 } | |
| 1851 } | |
| 1852 | |
| 1853 void os::signal_raise(int signal_number) { | |
| 1854 raise(signal_number); | |
| 1855 } | |
| 1856 | |
| 1857 // The Win32 C runtime library maps all console control events other than ^C | |
| 1858 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
| 1859 // logoff, and shutdown events. We therefore install our own console handler | |
| 1860 // that raises SIGTERM for the latter cases. | |
| 1861 // | |
| 1862 static BOOL WINAPI consoleHandler(DWORD event) { | |
| 1863 switch(event) { | |
| 1864 case CTRL_C_EVENT: | |
| 1865 if (is_error_reported()) { | |
| 1866 // Ctrl-C is pressed during error reporting, likely because the error | |
| 1867 // handler fails to abort. Let VM die immediately. | |
| 1868 os::die(); | |
| 1869 } | |
| 1870 | |
| 1871 os::signal_raise(SIGINT); | |
| 1872 return TRUE; | |
| 1873 break; | |
| 1874 case CTRL_BREAK_EVENT: | |
| 1875 if (sigbreakHandler != NULL) { | |
| 1876 (*sigbreakHandler)(SIGBREAK); | |
| 1877 } | |
| 1878 return TRUE; | |
| 1879 break; | |
| 1880 case CTRL_CLOSE_EVENT: | |
| 1881 case CTRL_LOGOFF_EVENT: | |
| 1882 case CTRL_SHUTDOWN_EVENT: | |
| 1883 os::signal_raise(SIGTERM); | |
| 1884 return TRUE; | |
| 1885 break; | |
| 1886 default: | |
| 1887 break; | |
| 1888 } | |
| 1889 return FALSE; | |
| 1890 } | |
| 1891 | |
| 1892 /* | |
| 1893 * The following code is moved from os.cpp for making this | |
| 1894 * code platform specific, which it is by its very nature. | |
| 1895 */ | |
| 1896 | |
| 1897 // Return maximum OS signal used + 1 for internal use only | |
| 1898 // Used as exit signal for signal_thread | |
| 1899 int os::sigexitnum_pd(){ | |
| 1900 return NSIG; | |
| 1901 } | |
| 1902 | |
| 1903 // a counter for each possible signal value, including signal_thread exit signal | |
| 1904 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
| 1905 static HANDLE sig_sem; | |
| 1906 | |
| 1907 void os::signal_init_pd() { | |
| 1908 // Initialize signal structures | |
| 1909 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
| 1910 | |
| 1911 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
| 1912 | |
| 1913 // Programs embedding the VM do not want it to attempt to receive | |
| 1914 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
| 1915 // shutdown hooks mechanism introduced in 1.3. For example, when | |
| 1916 // the VM is run as part of a Windows NT service (i.e., a servlet | |
| 1917 // engine in a web server), the correct behavior is for any console | |
| 1918 // control handler to return FALSE, not TRUE, because the OS's | |
| 1919 // "final" handler for such events allows the process to continue if | |
| 1920 // it is a service (while terminating it if it is not a service). | |
| 1921 // To make this behavior uniform and the mechanism simpler, we | |
| 1922 // completely disable the VM's usage of these console events if -Xrs | |
| 1923 // (=ReduceSignalUsage) is specified. This means, for example, that | |
| 1924 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
| 1925 // case. See bugs 4323062, 4345157, and related bugs. | |
| 1926 | |
| 1927 if (!ReduceSignalUsage) { | |
| 1928 // Add a CTRL-C handler | |
| 1929 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
| 1930 } | |
| 1931 } | |
| 1932 | |
| 1933 void os::signal_notify(int signal_number) { | |
| 1934 BOOL ret; | |
| 1935 | |
| 1936 Atomic::inc(&pending_signals[signal_number]); | |
| 1937 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 1938 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 1939 } | |
| 1940 | |
| 1941 static int check_pending_signals(bool wait_for_signal) { | |
| 1942 DWORD ret; | |
| 1943 while (true) { | |
| 1944 for (int i = 0; i < NSIG + 1; i++) { | |
| 1945 jint n = pending_signals[i]; | |
| 1946 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 1947 return i; | |
| 1948 } | |
| 1949 } | |
| 1950 if (!wait_for_signal) { | |
| 1951 return -1; | |
| 1952 } | |
| 1953 | |
| 1954 JavaThread *thread = JavaThread::current(); | |
| 1955 | |
| 1956 ThreadBlockInVM tbivm(thread); | |
| 1957 | |
| 1958 bool threadIsSuspended; | |
| 1959 do { | |
| 1960 thread->set_suspend_equivalent(); | |
| 1961 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 1962 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
| 1963 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
| 1964 | |
| 1965 // were we externally suspended while we were waiting? | |
| 1966 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 1967 if (threadIsSuspended) { | |
| 1968 // | |
| 1969 // The semaphore has been incremented, but while we were waiting | |
| 1970 // another thread suspended us. We don't want to continue running | |
| 1971 // while suspended because that would surprise the thread that | |
| 1972 // suspended us. | |
| 1973 // | |
| 1974 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 1975 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 1976 | |
| 1977 thread->java_suspend_self(); | |
| 1978 } | |
| 1979 } while (threadIsSuspended); | |
| 1980 } | |
| 1981 } | |
| 1982 | |
| 1983 int os::signal_lookup() { | |
| 1984 return check_pending_signals(false); | |
| 1985 } | |
| 1986 | |
| 1987 int os::signal_wait() { | |
| 1988 return check_pending_signals(true); | |
| 1989 } | |
| 1990 | |
| 1991 // Implicit OS exception handling | |
| 1992 | |
| 1993 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
| 1994 JavaThread* thread = JavaThread::current(); | |
| 1995 // Save pc in thread | |
| 1996 #ifdef _M_IA64 | |
| 1997 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->StIIP); | |
| 1998 // Set pc to handler | |
| 1999 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
| 2000 #elif _M_AMD64 | |
| 2001 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Rip); | |
| 2002 // Set pc to handler | |
| 2003 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
| 2004 #else | |
| 2005 thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Eip); | |
| 2006 // Set pc to handler | |
| 2007 exceptionInfo->ContextRecord->Eip = (LONG)handler; | |
| 2008 #endif | |
| 2009 | |
| 2010 // Continue the execution | |
| 2011 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2012 } | |
| 2013 | |
| 2014 | |
| 2015 // Used for PostMortemDump | |
| 2016 extern "C" void safepoints(); | |
| 2017 extern "C" void find(int x); | |
| 2018 extern "C" void events(); | |
| 2019 | |
| 2020 // According to Windows API documentation, an illegal instruction sequence should generate | |
| 2021 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
| 2022 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
| 2023 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
| 2024 | |
| 2025 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
| 2026 | |
| 2027 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
| 2028 // Once a system header becomes available, the "real" define should be | |
| 2029 // included or copied here. | |
| 2030 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
| 2031 | |
| 2032 #define def_excpt(val) #val, val | |
| 2033 | |
| 2034 struct siglabel { | |
| 2035 char *name; | |
| 2036 int number; | |
| 2037 }; | |
| 2038 | |
|
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2039 // All Visual C++ exceptions thrown from code generated by the Microsoft Visual |
|
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2040 // C++ compiler contain this error code. Because this is a compiler-generated |
|
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|
2041 // error, the code is not listed in the Win32 API header files. |
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2042 // The code is actually a cryptic mnemonic device, with the initial "E" |
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2043 // standing for "exception" and the final 3 bytes (0x6D7363) representing the |
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2044 // ASCII values of "msc". |
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2045 |
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2046 #define EXCEPTION_UNCAUGHT_CXX_EXCEPTION 0xE06D7363 |
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2047 |
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2048 |
| 0 | 2049 struct siglabel exceptlabels[] = { |
| 2050 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
| 2051 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
| 2052 def_excpt(EXCEPTION_BREAKPOINT), | |
| 2053 def_excpt(EXCEPTION_SINGLE_STEP), | |
| 2054 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
| 2055 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
| 2056 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
| 2057 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
| 2058 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
| 2059 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
| 2060 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
| 2061 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
| 2062 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
| 2063 def_excpt(EXCEPTION_INT_OVERFLOW), | |
| 2064 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
| 2065 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
| 2066 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
| 2067 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
| 2068 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
| 2069 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
| 2070 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
| 2071 def_excpt(EXCEPTION_GUARD_PAGE), | |
| 2072 def_excpt(EXCEPTION_INVALID_HANDLE), | |
|
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2073 def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION), |
| 0 | 2074 NULL, 0 |
| 2075 }; | |
| 2076 | |
| 2077 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
| 2078 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
| 2079 if (exceptlabels[i].number == exception_code) { | |
| 2080 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
| 2081 return buf; | |
| 2082 } | |
| 2083 } | |
| 2084 | |
| 2085 return NULL; | |
| 2086 } | |
| 2087 | |
| 2088 //----------------------------------------------------------------------------- | |
| 2089 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2090 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
| 2091 // (division by zero is handled explicitly) | |
| 2092 #ifdef _M_IA64 | |
| 2093 assert(0, "Fix Handle_IDiv_Exception"); | |
| 2094 #elif _M_AMD64 | |
| 2095 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2096 address pc = (address)ctx->Rip; | |
| 2097 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2098 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2099 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
| 2100 // set correct result values and continue after idiv instruction | |
| 2101 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2102 ctx->Rax = (DWORD)min_jint; // result | |
| 2103 ctx->Rdx = (DWORD)0; // remainder | |
| 2104 // Continue the execution | |
| 2105 #else | |
| 2106 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2107 address pc = (address)ctx->Eip; | |
| 2108 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2109 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2110 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
| 2111 // set correct result values and continue after idiv instruction | |
| 2112 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2113 ctx->Eax = (DWORD)min_jint; // result | |
| 2114 ctx->Edx = (DWORD)0; // remainder | |
| 2115 // Continue the execution | |
| 2116 #endif | |
| 2117 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2118 } | |
| 2119 | |
| 2120 #ifndef _WIN64 | |
| 2121 //----------------------------------------------------------------------------- | |
| 2122 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
|
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2123 // handle exception caused by native method modifying control word |
| 0 | 2124 PCONTEXT ctx = exceptionInfo->ContextRecord; |
| 2125 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2126 | |
| 2127 switch (exception_code) { | |
| 2128 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
| 2129 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
| 2130 case EXCEPTION_FLT_INEXACT_RESULT: | |
| 2131 case EXCEPTION_FLT_INVALID_OPERATION: | |
| 2132 case EXCEPTION_FLT_OVERFLOW: | |
| 2133 case EXCEPTION_FLT_STACK_CHECK: | |
| 2134 case EXCEPTION_FLT_UNDERFLOW: | |
| 2135 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
| 2136 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
| 2137 // Restore FPCW and mask out FLT exceptions | |
| 2138 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
| 2139 // Mask out pending FLT exceptions | |
| 2140 ctx->FloatSave.StatusWord &= 0xffffff00; | |
| 2141 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2142 } | |
| 2143 } | |
|
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2144 |
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2145 if (prev_uef_handler != NULL) { |
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2146 // We didn't handle this exception so pass it to the previous |
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2147 // UnhandledExceptionFilter. |
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2148 return (prev_uef_handler)(exceptionInfo); |
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2149 } |
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2150 |
| 0 | 2151 return EXCEPTION_CONTINUE_SEARCH; |
| 2152 } | |
| 2153 #else //_WIN64 | |
| 2154 /* | |
| 2155 On Windows, the mxcsr control bits are non-volatile across calls | |
| 2156 See also CR 6192333 | |
| 2157 If EXCEPTION_FLT_* happened after some native method modified | |
| 2158 mxcsr - it is not a jvm fault. | |
| 2159 However should we decide to restore of mxcsr after a faulty | |
| 2160 native method we can uncomment following code | |
| 2161 jint MxCsr = INITIAL_MXCSR; | |
| 2162 // we can't use StubRoutines::addr_mxcsr_std() | |
| 2163 // because in Win64 mxcsr is not saved there | |
| 2164 if (MxCsr != ctx->MxCsr) { | |
| 2165 ctx->MxCsr = MxCsr; | |
| 2166 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2167 } | |
| 2168 | |
| 2169 */ | |
| 2170 #endif //_WIN64 | |
| 2171 | |
| 2172 | |
| 2173 // Fatal error reporting is single threaded so we can make this a | |
| 2174 // static and preallocated. If it's more than MAX_PATH silently ignore | |
| 2175 // it. | |
| 2176 static char saved_error_file[MAX_PATH] = {0}; | |
| 2177 | |
| 2178 void os::set_error_file(const char *logfile) { | |
| 2179 if (strlen(logfile) <= MAX_PATH) { | |
| 2180 strncpy(saved_error_file, logfile, MAX_PATH); | |
| 2181 } | |
| 2182 } | |
| 2183 | |
| 2184 static inline void report_error(Thread* t, DWORD exception_code, | |
| 2185 address addr, void* siginfo, void* context) { | |
| 2186 VMError err(t, exception_code, addr, siginfo, context); | |
| 2187 err.report_and_die(); | |
| 2188 | |
| 2189 // If UseOsErrorReporting, this will return here and save the error file | |
| 2190 // somewhere where we can find it in the minidump. | |
| 2191 } | |
| 2192 | |
| 2193 //----------------------------------------------------------------------------- | |
| 2194 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2195 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
| 2196 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2197 #ifdef _M_IA64 | |
| 2198 address pc = (address) exceptionInfo->ContextRecord->StIIP; | |
| 2199 #elif _M_AMD64 | |
| 2200 address pc = (address) exceptionInfo->ContextRecord->Rip; | |
| 2201 #else | |
| 2202 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2203 #endif | |
| 2204 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
| 2205 | |
| 2206 #ifndef _WIN64 | |
| 2207 // Execution protection violation - win32 running on AMD64 only | |
| 2208 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
| 2209 // This is safe to do because we have a new/unique ExceptionInformation | |
| 2210 // code for this condition. | |
| 2211 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2212 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2213 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
| 2214 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2215 | |
| 2216 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 2217 int page_size = os::vm_page_size(); | |
| 2218 | |
| 2219 // Make sure the pc and the faulting address are sane. | |
| 2220 // | |
| 2221 // If an instruction spans a page boundary, and the page containing | |
| 2222 // the beginning of the instruction is executable but the following | |
| 2223 // page is not, the pc and the faulting address might be slightly | |
| 2224 // different - we still want to unguard the 2nd page in this case. | |
| 2225 // | |
| 2226 // 15 bytes seems to be a (very) safe value for max instruction size. | |
| 2227 bool pc_is_near_addr = | |
| 2228 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
| 2229 bool instr_spans_page_boundary = | |
| 2230 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
| 2231 (intptr_t) page_size) > 0); | |
| 2232 | |
| 2233 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
| 2234 static volatile address last_addr = | |
| 2235 (address) os::non_memory_address_word(); | |
| 2236 | |
| 2237 // In conservative mode, don't unguard unless the address is in the VM | |
| 2238 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
| 2239 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
| 2240 | |
|
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2241 // Set memory to RWX and retry |
| 0 | 2242 address page_start = |
| 2243 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
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2244 bool res = os::protect_memory((char*) page_start, page_size, |
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2245 os::MEM_PROT_RWX); |
| 0 | 2246 |
| 2247 if (PrintMiscellaneous && Verbose) { | |
| 2248 char buf[256]; | |
| 2249 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
| 2250 "at " INTPTR_FORMAT | |
| 2251 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
| 2252 page_start, (res ? "success" : strerror(errno))); | |
| 2253 tty->print_raw_cr(buf); | |
| 2254 } | |
| 2255 | |
| 2256 // Set last_addr so if we fault again at the same address, we don't | |
| 2257 // end up in an endless loop. | |
| 2258 // | |
| 2259 // There are two potential complications here. Two threads trapping | |
| 2260 // at the same address at the same time could cause one of the | |
| 2261 // threads to think it already unguarded, and abort the VM. Likely | |
| 2262 // very rare. | |
| 2263 // | |
| 2264 // The other race involves two threads alternately trapping at | |
| 2265 // different addresses and failing to unguard the page, resulting in | |
| 2266 // an endless loop. This condition is probably even more unlikely | |
| 2267 // than the first. | |
| 2268 // | |
| 2269 // Although both cases could be avoided by using locks or thread | |
| 2270 // local last_addr, these solutions are unnecessary complication: | |
| 2271 // this handler is a best-effort safety net, not a complete solution. | |
| 2272 // It is disabled by default and should only be used as a workaround | |
| 2273 // in case we missed any no-execute-unsafe VM code. | |
| 2274 | |
| 2275 last_addr = addr; | |
| 2276 | |
| 2277 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2278 } | |
| 2279 } | |
| 2280 | |
| 2281 // Last unguard failed or not unguarding | |
| 2282 tty->print_raw_cr("Execution protection violation"); | |
| 2283 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
| 2284 exceptionInfo->ContextRecord); | |
| 2285 return EXCEPTION_CONTINUE_SEARCH; | |
| 2286 } | |
| 2287 } | |
| 2288 #endif // _WIN64 | |
| 2289 | |
| 2290 // Check to see if we caught the safepoint code in the | |
| 2291 // process of write protecting the memory serialization page. | |
| 2292 // It write enables the page immediately after protecting it | |
| 2293 // so just return. | |
| 2294 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 2295 JavaThread* thread = (JavaThread*) t; | |
| 2296 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2297 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2298 if ( os::is_memory_serialize_page(thread, addr) ) { | |
| 2299 // Block current thread until the memory serialize page permission restored. | |
| 2300 os::block_on_serialize_page_trap(); | |
| 2301 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2302 } | |
| 2303 } | |
| 2304 | |
| 2305 if (t != NULL && t->is_Java_thread()) { | |
| 2306 JavaThread* thread = (JavaThread*) t; | |
| 2307 bool in_java = thread->thread_state() == _thread_in_Java; | |
| 2308 | |
| 2309 // Handle potential stack overflows up front. | |
| 2310 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
| 2311 if (os::uses_stack_guard_pages()) { | |
| 2312 #ifdef _M_IA64 | |
| 2313 // | |
| 2314 // If it's a legal stack address continue, Windows will map it in. | |
| 2315 // | |
| 2316 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2317 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2318 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) | |
| 2319 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2320 | |
| 2321 // The register save area is the same size as the memory stack | |
| 2322 // and starts at the page just above the start of the memory stack. | |
| 2323 // If we get a fault in this area, we've run out of register | |
| 2324 // stack. If we are in java, try throwing a stack overflow exception. | |
| 2325 if (addr > thread->stack_base() && | |
| 2326 addr <= (thread->stack_base()+thread->stack_size()) ) { | |
| 2327 char buf[256]; | |
| 2328 jio_snprintf(buf, sizeof(buf), | |
| 2329 "Register stack overflow, addr:%p, stack_base:%p\n", | |
| 2330 addr, thread->stack_base() ); | |
| 2331 tty->print_raw_cr(buf); | |
| 2332 // If not in java code, return and hope for the best. | |
| 2333 return in_java ? Handle_Exception(exceptionInfo, | |
| 2334 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2335 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2336 } | |
| 2337 #endif | |
| 2338 if (thread->stack_yellow_zone_enabled()) { | |
| 2339 // Yellow zone violation. The o/s has unprotected the first yellow | |
| 2340 // zone page for us. Note: must call disable_stack_yellow_zone to | |
| 2341 // update the enabled status, even if the zone contains only one page. | |
| 2342 thread->disable_stack_yellow_zone(); | |
| 2343 // If not in java code, return and hope for the best. | |
| 2344 return in_java ? Handle_Exception(exceptionInfo, | |
| 2345 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2346 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2347 } else { | |
| 2348 // Fatal red zone violation. | |
| 2349 thread->disable_stack_red_zone(); | |
| 2350 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
| 2351 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2352 exceptionInfo->ContextRecord); | |
| 2353 return EXCEPTION_CONTINUE_SEARCH; | |
| 2354 } | |
| 2355 } else if (in_java) { | |
| 2356 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
| 2357 // a one-time-only guard page, which it has released to us. The next | |
| 2358 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
| 2359 return Handle_Exception(exceptionInfo, | |
| 2360 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2361 } else { | |
| 2362 // Can only return and hope for the best. Further stack growth will | |
| 2363 // result in an ACCESS_VIOLATION. | |
| 2364 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2365 } | |
| 2366 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2367 // Either stack overflow or null pointer exception. | |
| 2368 if (in_java) { | |
| 2369 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2370 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2371 address stack_end = thread->stack_base() - thread->stack_size(); | |
| 2372 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
| 2373 // Stack overflow. | |
| 2374 assert(!os::uses_stack_guard_pages(), | |
| 2375 "should be caught by red zone code above."); | |
| 2376 return Handle_Exception(exceptionInfo, | |
| 2377 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2378 } | |
| 2379 // | |
| 2380 // Check for safepoint polling and implicit null | |
| 2381 // We only expect null pointers in the stubs (vtable) | |
| 2382 // the rest are checked explicitly now. | |
| 2383 // | |
| 2384 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2385 if (cb != NULL) { | |
| 2386 if (os::is_poll_address(addr)) { | |
| 2387 address stub = SharedRuntime::get_poll_stub(pc); | |
| 2388 return Handle_Exception(exceptionInfo, stub); | |
| 2389 } | |
| 2390 } | |
| 2391 { | |
| 2392 #ifdef _WIN64 | |
| 2393 // | |
| 2394 // If it's a legal stack address map the entire region in | |
| 2395 // | |
| 2396 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2397 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2398 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
| 2399 addr = (address)((uintptr_t)addr & | |
| 2400 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
| 656 | 2401 os::commit_memory((char *)addr, thread->stack_base() - addr, |
| 2402 false ); | |
| 0 | 2403 return EXCEPTION_CONTINUE_EXECUTION; |
| 2404 } | |
| 2405 else | |
| 2406 #endif | |
| 2407 { | |
| 2408 // Null pointer exception. | |
| 2409 #ifdef _M_IA64 | |
| 2410 // We catch register stack overflows in compiled code by doing | |
| 2411 // an explicit compare and executing a st8(G0, G0) if the | |
| 2412 // BSP enters into our guard area. We test for the overflow | |
| 2413 // condition and fall into the normal null pointer exception | |
| 2414 // code if BSP hasn't overflowed. | |
| 2415 if ( in_java ) { | |
| 2416 if(thread->register_stack_overflow()) { | |
| 2417 assert((address)exceptionInfo->ContextRecord->IntS3 == | |
| 2418 thread->register_stack_limit(), | |
| 2419 "GR7 doesn't contain register_stack_limit"); | |
| 2420 // Disable the yellow zone which sets the state that | |
| 2421 // we've got a stack overflow problem. | |
| 2422 if (thread->stack_yellow_zone_enabled()) { | |
| 2423 thread->disable_stack_yellow_zone(); | |
| 2424 } | |
| 2425 // Give us some room to process the exception | |
| 2426 thread->disable_register_stack_guard(); | |
| 2427 // Update GR7 with the new limit so we can continue running | |
| 2428 // compiled code. | |
| 2429 exceptionInfo->ContextRecord->IntS3 = | |
| 2430 (ULONGLONG)thread->register_stack_limit(); | |
| 2431 return Handle_Exception(exceptionInfo, | |
| 2432 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2433 } else { | |
| 2434 // | |
| 2435 // Check for implicit null | |
| 2436 // We only expect null pointers in the stubs (vtable) | |
| 2437 // the rest are checked explicitly now. | |
| 2438 // | |
|
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2440 // an access to the first page of VM--assume it is a null pointer |
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2441 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2442 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2443 } |
| 2444 } | |
| 2445 } // in_java | |
| 2446 | |
| 2447 // IA64 doesn't use implicit null checking yet. So we shouldn't | |
| 2448 // get here. | |
| 2449 tty->print_raw_cr("Access violation, possible null pointer exception"); | |
| 2450 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2451 exceptionInfo->ContextRecord); | |
| 2452 return EXCEPTION_CONTINUE_SEARCH; | |
| 2453 #else /* !IA64 */ | |
| 2454 | |
| 2455 // Windows 98 reports faulting addresses incorrectly | |
| 2456 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
| 2457 !os::win32::is_nt()) { | |
|
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2458 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
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2459 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2460 } |
| 2461 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2462 exceptionInfo->ContextRecord); | |
| 2463 return EXCEPTION_CONTINUE_SEARCH; | |
| 2464 #endif | |
| 2465 } | |
| 2466 } | |
| 2467 } | |
| 2468 | |
| 2469 #ifdef _WIN64 | |
| 2470 // Special care for fast JNI field accessors. | |
| 2471 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
| 2472 // in and the heap gets shrunk before the field access. | |
| 2473 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2474 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2475 if (addr != (address)-1) { | |
| 2476 return Handle_Exception(exceptionInfo, addr); | |
| 2477 } | |
| 2478 } | |
| 2479 #endif | |
| 2480 | |
| 2481 // Stack overflow or null pointer exception in native code. | |
| 2482 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2483 exceptionInfo->ContextRecord); | |
| 2484 return EXCEPTION_CONTINUE_SEARCH; | |
| 2485 } | |
| 2486 | |
| 2487 if (in_java) { | |
| 2488 switch (exception_code) { | |
| 2489 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
| 2490 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
| 2491 | |
| 2492 case EXCEPTION_INT_OVERFLOW: | |
| 2493 return Handle_IDiv_Exception(exceptionInfo); | |
| 2494 | |
| 2495 } // switch | |
| 2496 } | |
| 2497 #ifndef _WIN64 | |
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2498 if (((thread->thread_state() == _thread_in_Java) || |
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2499 (thread->thread_state() == _thread_in_native)) && |
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2500 exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION) |
| 0 | 2501 { |
| 2502 LONG result=Handle_FLT_Exception(exceptionInfo); | |
| 2503 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
| 2504 } | |
| 2505 #endif //_WIN64 | |
| 2506 } | |
| 2507 | |
| 2508 if (exception_code != EXCEPTION_BREAKPOINT) { | |
| 2509 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2510 exceptionInfo->ContextRecord); | |
| 2511 } | |
| 2512 return EXCEPTION_CONTINUE_SEARCH; | |
| 2513 } | |
| 2514 | |
| 2515 #ifndef _WIN64 | |
| 2516 // Special care for fast JNI accessors. | |
| 2517 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
| 2518 // the heap gets shrunk before the field access. | |
| 2519 // Need to install our own structured exception handler since native code may | |
| 2520 // install its own. | |
| 2521 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2522 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2523 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2524 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2525 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2526 if (addr != (address)-1) { | |
| 2527 return Handle_Exception(exceptionInfo, addr); | |
| 2528 } | |
| 2529 } | |
| 2530 return EXCEPTION_CONTINUE_SEARCH; | |
| 2531 } | |
| 2532 | |
| 2533 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
| 2534 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
| 2535 __try { \ | |
| 2536 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
| 2537 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
| 2538 } \ | |
| 2539 return 0; \ | |
| 2540 } | |
| 2541 | |
| 2542 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
| 2543 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
| 2544 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
| 2545 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
| 2546 DEFINE_FAST_GETFIELD(jint, int, Int) | |
| 2547 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
| 2548 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
| 2549 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
| 2550 | |
| 2551 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
| 2552 switch (type) { | |
| 2553 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
| 2554 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
| 2555 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
| 2556 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
| 2557 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
| 2558 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
| 2559 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
| 2560 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
| 2561 default: ShouldNotReachHere(); | |
| 2562 } | |
| 2563 return (address)-1; | |
| 2564 } | |
| 2565 #endif | |
| 2566 | |
| 2567 // Virtual Memory | |
| 2568 | |
| 2569 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
| 2570 int os::vm_allocation_granularity() { | |
| 2571 return os::win32::vm_allocation_granularity(); | |
| 2572 } | |
| 2573 | |
| 2574 // Windows large page support is available on Windows 2003. In order to use | |
| 2575 // large page memory, the administrator must first assign additional privilege | |
| 2576 // to the user: | |
| 2577 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
| 2578 // + select Local Policies -> User Rights Assignment | |
| 2579 // + double click "Lock pages in memory", add users and/or groups | |
| 2580 // + reboot | |
| 2581 // Note the above steps are needed for administrator as well, as administrators | |
| 2582 // by default do not have the privilege to lock pages in memory. | |
| 2583 // | |
| 2584 // Note about Windows 2003: although the API supports committing large page | |
| 2585 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
| 2586 // scenario, I found through experiment it only uses large page if the entire | |
| 2587 // memory region is reserved and committed in a single VirtualAlloc() call. | |
| 2588 // This makes Windows large page support more or less like Solaris ISM, in | |
| 2589 // that the entire heap must be committed upfront. This probably will change | |
| 2590 // in the future, if so the code below needs to be revisited. | |
| 2591 | |
| 2592 #ifndef MEM_LARGE_PAGES | |
| 2593 #define MEM_LARGE_PAGES 0x20000000 | |
| 2594 #endif | |
| 2595 | |
| 2596 static HANDLE _hProcess; | |
| 2597 static HANDLE _hToken; | |
| 2598 | |
| 3885 | 2599 // Container for NUMA node list info |
| 2600 class NUMANodeListHolder { | |
| 2601 private: | |
| 2602 int *_numa_used_node_list; // allocated below | |
| 2603 int _numa_used_node_count; | |
| 2604 | |
| 2605 void free_node_list() { | |
| 2606 if (_numa_used_node_list != NULL) { | |
| 6197 | 2607 FREE_C_HEAP_ARRAY(int, _numa_used_node_list, mtInternal); |
| 3885 | 2608 } |
| 2609 } | |
| 2610 | |
| 2611 public: | |
| 2612 NUMANodeListHolder() { | |
| 2613 _numa_used_node_count = 0; | |
| 2614 _numa_used_node_list = NULL; | |
| 2615 // do rest of initialization in build routine (after function pointers are set up) | |
| 2616 } | |
| 2617 | |
| 2618 ~NUMANodeListHolder() { | |
| 2619 free_node_list(); | |
| 2620 } | |
| 2621 | |
| 2622 bool build() { | |
| 2623 DWORD_PTR proc_aff_mask; | |
| 2624 DWORD_PTR sys_aff_mask; | |
| 2625 if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false; | |
| 2626 ULONG highest_node_number; | |
| 2627 if (!os::Kernel32Dll::GetNumaHighestNodeNumber(&highest_node_number)) return false; | |
| 2628 free_node_list(); | |
| 6197 | 2629 _numa_used_node_list = NEW_C_HEAP_ARRAY(int, highest_node_number + 1, mtInternal); |
| 3885 | 2630 for (unsigned int i = 0; i <= highest_node_number; i++) { |
| 2631 ULONGLONG proc_mask_numa_node; | |
| 2632 if (!os::Kernel32Dll::GetNumaNodeProcessorMask(i, &proc_mask_numa_node)) return false; | |
| 2633 if ((proc_aff_mask & proc_mask_numa_node)!=0) { | |
| 2634 _numa_used_node_list[_numa_used_node_count++] = i; | |
| 2635 } | |
| 2636 } | |
| 2637 return (_numa_used_node_count > 1); | |
| 2638 } | |
| 2639 | |
| 2640 int get_count() {return _numa_used_node_count;} | |
| 2641 int get_node_list_entry(int n) { | |
| 2642 // for indexes out of range, returns -1 | |
| 2643 return (n < _numa_used_node_count ? _numa_used_node_list[n] : -1); | |
| 2644 } | |
| 2645 | |
| 2646 } numa_node_list_holder; | |
| 2647 | |
| 2648 | |
| 2649 | |
| 0 | 2650 static size_t _large_page_size = 0; |
| 2651 | |
| 2652 static bool resolve_functions_for_large_page_init() { | |
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2653 return os::Kernel32Dll::GetLargePageMinimumAvailable() && |
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2654 os::Advapi32Dll::AdvapiAvailable(); |
| 0 | 2655 } |
| 2656 | |
| 2657 static bool request_lock_memory_privilege() { | |
| 2658 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
| 2659 os::current_process_id()); | |
| 2660 | |
| 2661 LUID luid; | |
| 2662 if (_hProcess != NULL && | |
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2663 os::Advapi32Dll::OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && |
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2664 os::Advapi32Dll::LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { |
| 0 | 2665 |
| 2666 TOKEN_PRIVILEGES tp; | |
| 2667 tp.PrivilegeCount = 1; | |
| 2668 tp.Privileges[0].Luid = luid; | |
| 2669 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
| 2670 | |
| 2671 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
| 2672 // privilege. Check GetLastError() too. See MSDN document. | |
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2673 if (os::Advapi32Dll::AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && |
| 0 | 2674 (GetLastError() == ERROR_SUCCESS)) { |
| 2675 return true; | |
| 2676 } | |
| 2677 } | |
| 2678 | |
| 2679 return false; | |
| 2680 } | |
| 2681 | |
| 2682 static void cleanup_after_large_page_init() { | |
| 2683 if (_hProcess) CloseHandle(_hProcess); | |
| 2684 _hProcess = NULL; | |
| 2685 if (_hToken) CloseHandle(_hToken); | |
| 2686 _hToken = NULL; | |
| 2687 } | |
| 2688 | |
| 3885 | 2689 static bool numa_interleaving_init() { |
| 2690 bool success = false; | |
| 2691 bool use_numa_interleaving_specified = !FLAG_IS_DEFAULT(UseNUMAInterleaving); | |
| 2692 | |
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2693 // print a warning if UseNUMAInterleaving flag is specified on command line |
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2694 bool warn_on_failure = use_numa_interleaving_specified; |
| 3885 | 2695 # define WARN(msg) if (warn_on_failure) { warning(msg); } |
| 2696 | |
| 2697 // NUMAInterleaveGranularity cannot be less than vm_allocation_granularity (or _large_page_size if using large pages) | |
| 2698 size_t min_interleave_granularity = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
| 2699 NUMAInterleaveGranularity = align_size_up(NUMAInterleaveGranularity, min_interleave_granularity); | |
| 2700 | |
| 2701 if (os::Kernel32Dll::NumaCallsAvailable()) { | |
| 2702 if (numa_node_list_holder.build()) { | |
| 2703 if (PrintMiscellaneous && Verbose) { | |
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2704 tty->print("NUMA UsedNodeCount=%d, namely ", numa_node_list_holder.get_count()); |
| 3885 | 2705 for (int i = 0; i < numa_node_list_holder.get_count(); i++) { |
| 2706 tty->print("%d ", numa_node_list_holder.get_node_list_entry(i)); | |
| 2707 } | |
| 2708 tty->print("\n"); | |
| 2709 } | |
| 2710 success = true; | |
| 2711 } else { | |
| 2712 WARN("Process does not cover multiple NUMA nodes."); | |
| 2713 } | |
| 2714 } else { | |
| 2715 WARN("NUMA Interleaving is not supported by the operating system."); | |
| 2716 } | |
| 2717 if (!success) { | |
| 2718 if (use_numa_interleaving_specified) WARN("...Ignoring UseNUMAInterleaving flag."); | |
| 2719 } | |
| 2720 return success; | |
| 2721 #undef WARN | |
| 2722 } | |
| 2723 | |
| 2724 // this routine is used whenever we need to reserve a contiguous VA range | |
| 2725 // but we need to make separate VirtualAlloc calls for each piece of the range | |
| 2726 // Reasons for doing this: | |
| 2727 // * UseLargePagesIndividualAllocation was set (normally only needed on WS2003 but possible to be set otherwise) | |
| 2728 // * UseNUMAInterleaving requires a separate node for each piece | |
| 2729 static char* allocate_pages_individually(size_t bytes, char* addr, DWORD flags, DWORD prot, | |
| 2730 bool should_inject_error=false) { | |
| 2731 char * p_buf; | |
| 2732 // note: at setup time we guaranteed that NUMAInterleaveGranularity was aligned up to a page size | |
| 2733 size_t page_size = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
| 2734 size_t chunk_size = UseNUMAInterleaving ? NUMAInterleaveGranularity : page_size; | |
| 2735 | |
| 2736 // first reserve enough address space in advance since we want to be | |
| 2737 // able to break a single contiguous virtual address range into multiple | |
| 2738 // large page commits but WS2003 does not allow reserving large page space | |
| 2739 // so we just use 4K pages for reserve, this gives us a legal contiguous | |
| 2740 // address space. then we will deallocate that reservation, and re alloc | |
| 2741 // using large pages | |
| 2742 const size_t size_of_reserve = bytes + chunk_size; | |
| 2743 if (bytes > size_of_reserve) { | |
| 2744 // Overflowed. | |
| 2745 return NULL; | |
| 2746 } | |
| 2747 p_buf = (char *) VirtualAlloc(addr, | |
| 2748 size_of_reserve, // size of Reserve | |
| 2749 MEM_RESERVE, | |
| 2750 PAGE_READWRITE); | |
| 2751 // If reservation failed, return NULL | |
| 2752 if (p_buf == NULL) return NULL; | |
| 2753 | |
| 2754 os::release_memory(p_buf, bytes + chunk_size); | |
| 2755 | |
| 2756 // we still need to round up to a page boundary (in case we are using large pages) | |
| 2757 // but not to a chunk boundary (in case InterleavingGranularity doesn't align with page size) | |
| 2758 // instead we handle this in the bytes_to_rq computation below | |
| 2759 p_buf = (char *) align_size_up((size_t)p_buf, page_size); | |
| 2760 | |
| 2761 // now go through and allocate one chunk at a time until all bytes are | |
| 2762 // allocated | |
| 2763 size_t bytes_remaining = bytes; | |
| 2764 // An overflow of align_size_up() would have been caught above | |
| 2765 // in the calculation of size_of_reserve. | |
| 2766 char * next_alloc_addr = p_buf; | |
| 2767 HANDLE hProc = GetCurrentProcess(); | |
| 2768 | |
| 2769 #ifdef ASSERT | |
| 2770 // Variable for the failure injection | |
| 2771 long ran_num = os::random(); | |
| 2772 size_t fail_after = ran_num % bytes; | |
| 2773 #endif | |
| 2774 | |
| 2775 int count=0; | |
| 2776 while (bytes_remaining) { | |
| 2777 // select bytes_to_rq to get to the next chunk_size boundary | |
| 2778 | |
| 2779 size_t bytes_to_rq = MIN2(bytes_remaining, chunk_size - ((size_t)next_alloc_addr % chunk_size)); | |
| 2780 // Note allocate and commit | |
| 2781 char * p_new; | |
| 2782 | |
| 2783 #ifdef ASSERT | |
| 2784 bool inject_error_now = should_inject_error && (bytes_remaining <= fail_after); | |
| 2785 #else | |
| 2786 const bool inject_error_now = false; | |
| 2787 #endif | |
| 2788 | |
| 2789 if (inject_error_now) { | |
| 2790 p_new = NULL; | |
| 2791 } else { | |
| 2792 if (!UseNUMAInterleaving) { | |
| 2793 p_new = (char *) VirtualAlloc(next_alloc_addr, | |
| 2794 bytes_to_rq, | |
| 2795 flags, | |
| 2796 prot); | |
| 2797 } else { | |
| 2798 // get the next node to use from the used_node_list | |
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2799 assert(numa_node_list_holder.get_count() > 0, "Multiple NUMA nodes expected"); |
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2800 DWORD node = numa_node_list_holder.get_node_list_entry(count % numa_node_list_holder.get_count()); |
| 3885 | 2801 p_new = (char *)os::Kernel32Dll::VirtualAllocExNuma(hProc, |
| 2802 next_alloc_addr, | |
| 2803 bytes_to_rq, | |
| 2804 flags, | |
| 2805 prot, | |
| 2806 node); | |
| 2807 } | |
| 2808 } | |
| 2809 | |
| 2810 if (p_new == NULL) { | |
| 2811 // Free any allocated pages | |
| 2812 if (next_alloc_addr > p_buf) { | |
| 2813 // Some memory was committed so release it. | |
| 2814 size_t bytes_to_release = bytes - bytes_remaining; | |
| 2815 os::release_memory(p_buf, bytes_to_release); | |
| 2816 } | |
| 2817 #ifdef ASSERT | |
| 2818 if (should_inject_error) { | |
| 2819 if (TracePageSizes && Verbose) { | |
| 2820 tty->print_cr("Reserving pages individually failed."); | |
| 2821 } | |
| 2822 } | |
| 2823 #endif | |
| 2824 return NULL; | |
| 2825 } | |
| 2826 bytes_remaining -= bytes_to_rq; | |
| 2827 next_alloc_addr += bytes_to_rq; | |
| 2828 count++; | |
| 2829 } | |
| 2830 // made it this far, success | |
| 2831 return p_buf; | |
| 2832 } | |
| 2833 | |
| 2834 | |
| 2835 | |
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2836 void os::large_page_init() { |
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2837 if (!UseLargePages) return; |
| 0 | 2838 |
| 2839 // print a warning if any large page related flag is specified on command line | |
| 2840 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
| 2841 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
| 2842 bool success = false; | |
| 2843 | |
| 2844 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
| 2845 if (resolve_functions_for_large_page_init()) { | |
| 2846 if (request_lock_memory_privilege()) { | |
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2847 size_t s = os::Kernel32Dll::GetLargePageMinimum(); |
| 0 | 2848 if (s) { |
| 2849 #if defined(IA32) || defined(AMD64) | |
| 2850 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
| 2851 WARN("JVM cannot use large pages bigger than 4mb."); | |
| 2852 } else { | |
| 2853 #endif | |
| 2854 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
| 2855 _large_page_size = LargePageSizeInBytes; | |
| 2856 } else { | |
| 2857 _large_page_size = s; | |
| 2858 } | |
| 2859 success = true; | |
| 2860 #if defined(IA32) || defined(AMD64) | |
| 2861 } | |
| 2862 #endif | |
| 2863 } else { | |
| 2864 WARN("Large page is not supported by the processor."); | |
| 2865 } | |
| 2866 } else { | |
| 2867 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
| 2868 } | |
| 2869 } else { | |
| 2870 WARN("Large page is not supported by the operating system."); | |
| 2871 } | |
| 2872 #undef WARN | |
| 2873 | |
| 2874 const size_t default_page_size = (size_t) vm_page_size(); | |
| 2875 if (success && _large_page_size > default_page_size) { | |
| 2876 _page_sizes[0] = _large_page_size; | |
| 2877 _page_sizes[1] = default_page_size; | |
| 2878 _page_sizes[2] = 0; | |
| 2879 } | |
| 2880 | |
| 2881 cleanup_after_large_page_init(); | |
|
3318
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diff
changeset
|
2882 UseLargePages = success; |
| 0 | 2883 } |
| 2884 | |
| 2885 // On win32, one cannot release just a part of reserved memory, it's an | |
| 2886 // all or nothing deal. When we split a reservation, we must break the | |
| 2887 // reservation into two reservations. | |
| 6197 | 2888 void os::pd_split_reserved_memory(char *base, size_t size, size_t split, |
| 0 | 2889 bool realloc) { |
| 2890 if (size > 0) { | |
| 2891 release_memory(base, size); | |
| 2892 if (realloc) { | |
| 2893 reserve_memory(split, base); | |
| 2894 } | |
| 2895 if (size != split) { | |
| 2896 reserve_memory(size - split, base + split); | |
| 2897 } | |
| 2898 } | |
| 2899 } | |
| 2900 | |
| 6197 | 2901 char* os::pd_reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { |
| 0 | 2902 assert((size_t)addr % os::vm_allocation_granularity() == 0, |
| 2903 "reserve alignment"); | |
| 2904 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
| 3885 | 2905 char* res; |
| 2906 // note that if UseLargePages is on, all the areas that require interleaving | |
| 2907 // will go thru reserve_memory_special rather than thru here. | |
| 2908 bool use_individual = (UseNUMAInterleaving && !UseLargePages); | |
| 2909 if (!use_individual) { | |
| 2910 res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); | |
| 2911 } else { | |
| 2912 elapsedTimer reserveTimer; | |
| 2913 if( Verbose && PrintMiscellaneous ) reserveTimer.start(); | |
| 2914 // in numa interleaving, we have to allocate pages individually | |
| 2915 // (well really chunks of NUMAInterleaveGranularity size) | |
| 2916 res = allocate_pages_individually(bytes, addr, MEM_RESERVE, PAGE_READWRITE); | |
| 2917 if (res == NULL) { | |
| 2918 warning("NUMA page allocation failed"); | |
| 2919 } | |
| 2920 if( Verbose && PrintMiscellaneous ) { | |
| 2921 reserveTimer.stop(); | |
| 2922 tty->print_cr("reserve_memory of %Ix bytes took %ld ms (%ld ticks)", bytes, | |
| 2923 reserveTimer.milliseconds(), reserveTimer.ticks()); | |
| 2924 } | |
| 2925 } | |
| 0 | 2926 assert(res == NULL || addr == NULL || addr == res, |
| 2927 "Unexpected address from reserve."); | |
| 3885 | 2928 |
| 0 | 2929 return res; |
| 2930 } | |
| 2931 | |
| 2932 // Reserve memory at an arbitrary address, only if that area is | |
| 2933 // available (and not reserved for something else). | |
| 6197 | 2934 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
| 0 | 2935 // Windows os::reserve_memory() fails of the requested address range is |
| 2936 // not avilable. | |
| 2937 return reserve_memory(bytes, requested_addr); | |
| 2938 } | |
| 2939 | |
| 2940 size_t os::large_page_size() { | |
| 2941 return _large_page_size; | |
| 2942 } | |
| 2943 | |
| 2944 bool os::can_commit_large_page_memory() { | |
| 2945 // Windows only uses large page memory when the entire region is reserved | |
| 2946 // and committed in a single VirtualAlloc() call. This may change in the | |
| 2947 // future, but with Windows 2003 it's not possible to commit on demand. | |
| 2948 return false; | |
| 2949 } | |
| 2950 | |
|
79
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62
diff
changeset
|
2951 bool os::can_execute_large_page_memory() { |
|
82db0859acbe
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62
diff
changeset
|
2952 return true; |
|
82db0859acbe
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62
diff
changeset
|
2953 } |
|
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62
diff
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|
2954 |
| 656 | 2955 char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) { |
|
389
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|
2956 |
| 717 | 2957 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
| 3885 | 2958 const DWORD flags = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 2959 | |
| 2960 // with large pages, there are two cases where we need to use Individual Allocation | |
| 2961 // 1) the UseLargePagesIndividualAllocation flag is set (set by default on WS2003) | |
| 2962 // 2) NUMA Interleaving is enabled, in which case we use a different node for each page | |
| 2963 if (UseLargePagesIndividualAllocation || UseNUMAInterleaving) { | |
|
389
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356
diff
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|
2964 if (TracePageSizes && Verbose) { |
|
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|
2965 tty->print_cr("Reserving large pages individually."); |
|
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356
diff
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|
2966 } |
| 3885 | 2967 char * p_buf = allocate_pages_individually(bytes, addr, flags, prot, LargePagesIndividualAllocationInjectError); |
| 2968 if (p_buf == NULL) { | |
| 2969 // give an appropriate warning message | |
| 2970 if (UseNUMAInterleaving) { | |
| 2971 warning("NUMA large page allocation failed, UseLargePages flag ignored"); | |
| 2972 } | |
| 2973 if (UseLargePagesIndividualAllocation) { | |
| 2974 warning("Individually allocated large pages failed, " | |
| 2975 "use -XX:-UseLargePagesIndividualAllocation to turn off"); | |
| 2976 } | |
|
389
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changeset
|
2977 return NULL; |
|
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356
diff
changeset
|
2978 } |
|
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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356
diff
changeset
|
2979 |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
2980 return p_buf; |
|
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
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356
diff
changeset
|
2981 |
|
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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356
diff
changeset
|
2982 } else { |
|
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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356
diff
changeset
|
2983 // normal policy just allocate it all at once |
|
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356
diff
changeset
|
2984 DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 717 | 2985 char * res = (char *)VirtualAlloc(NULL, bytes, flag, prot); |
|
389
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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diff
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|
2986 return res; |
|
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356
diff
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|
2987 } |
| 0 | 2988 } |
| 2989 | |
| 2990 bool os::release_memory_special(char* base, size_t bytes) { | |
| 2991 return release_memory(base, bytes); | |
| 2992 } | |
| 2993 | |
| 2994 void os::print_statistics() { | |
| 2995 } | |
| 2996 | |
| 6197 | 2997 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) { |
| 0 | 2998 if (bytes == 0) { |
| 2999 // Don't bother the OS with noops. | |
| 3000 return true; | |
| 3001 } | |
| 3002 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
| 3003 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
| 3004 // Don't attempt to print anything if the OS call fails. We're | |
| 3005 // probably low on resources, so the print itself may cause crashes. | |
| 3885 | 3006 |
| 3007 // unless we have NUMAInterleaving enabled, the range of a commit | |
| 3008 // is always within a reserve covered by a single VirtualAlloc | |
| 3009 // in that case we can just do a single commit for the requested size | |
| 3010 if (!UseNUMAInterleaving) { | |
| 3011 if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) return false; | |
| 3012 if (exec) { | |
| 3013 DWORD oldprot; | |
| 3014 // Windows doc says to use VirtualProtect to get execute permissions | |
| 3015 if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) return false; | |
| 3016 } | |
| 3017 return true; | |
| 656 | 3018 } else { |
| 3885 | 3019 |
| 3020 // when NUMAInterleaving is enabled, the commit might cover a range that | |
| 3021 // came from multiple VirtualAlloc reserves (using allocate_pages_individually). | |
| 3022 // VirtualQuery can help us determine that. The RegionSize that VirtualQuery | |
| 3023 // returns represents the number of bytes that can be committed in one step. | |
| 3024 size_t bytes_remaining = bytes; | |
| 3025 char * next_alloc_addr = addr; | |
| 3026 while (bytes_remaining > 0) { | |
| 3027 MEMORY_BASIC_INFORMATION alloc_info; | |
| 3028 VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info)); | |
| 3029 size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize); | |
| 3030 if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT, PAGE_READWRITE) == NULL) | |
| 3031 return false; | |
| 3032 if (exec) { | |
| 3033 DWORD oldprot; | |
| 3034 if (!VirtualProtect(next_alloc_addr, bytes_to_rq, PAGE_EXECUTE_READWRITE, &oldprot)) | |
| 3035 return false; | |
| 3036 } | |
| 3037 bytes_remaining -= bytes_to_rq; | |
| 3038 next_alloc_addr += bytes_to_rq; | |
| 3039 } | |
| 3040 } | |
| 3041 // if we made it this far, return true | |
| 3042 return true; | |
| 0 | 3043 } |
| 3044 | |
| 6197 | 3045 bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint, |
| 656 | 3046 bool exec) { |
| 3047 return commit_memory(addr, size, exec); | |
| 0 | 3048 } |
| 3049 | |
| 6197 | 3050 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
| 0 | 3051 if (bytes == 0) { |
| 3052 // Don't bother the OS with noops. | |
| 3053 return true; | |
| 3054 } | |
| 3055 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
| 3056 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
| 6197 | 3057 return (VirtualFree(addr, bytes, MEM_DECOMMIT) != 0); |
| 3058 } | |
| 3059 | |
| 3060 bool os::pd_release_memory(char* addr, size_t bytes) { | |
| 0 | 3061 return VirtualFree(addr, 0, MEM_RELEASE) != 0; |
| 3062 } | |
| 3063 | |
| 6197 | 3064 bool os::pd_create_stack_guard_pages(char* addr, size_t size) { |
|
1320
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3065 return os::commit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3066 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3067 |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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1215
diff
changeset
|
3068 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3069 return os::uncommit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3070 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
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1215
diff
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|
3071 |
|
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
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|
3072 // Set protections specified |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3073 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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parents:
196
diff
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|
3074 bool is_committed) { |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3075 unsigned int p = 0; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3076 switch (prot) { |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3077 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3078 case MEM_PROT_READ: p = PAGE_READONLY; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3079 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3080 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3081 default: |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3082 ShouldNotReachHere(); |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3083 } |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
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|
3084 |
| 0 | 3085 DWORD old_status; |
|
237
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6716785: implicit null checks not triggering with CompressedOops
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196
diff
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|
3086 |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3087 // Strange enough, but on Win32 one can change protection only for committed |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3088 // memory, not a big deal anyway, as bytes less or equal than 64K |
| 656 | 3089 if (!is_committed && !commit_memory(addr, bytes, prot == MEM_PROT_RWX)) { |
|
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3090 fatal("cannot commit protection page"); |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3091 } |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3092 // One cannot use os::guard_memory() here, as on Win32 guard page |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3093 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
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|
3094 // |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3095 // Pages in the region become guard pages. Any attempt to access a guard page |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3096 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3097 // the guard page status. Guard pages thus act as a one-time access alarm. |
|
1fdb98a17101
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196
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changeset
|
3098 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
| 0 | 3099 } |
| 3100 | |
| 3101 bool os::guard_memory(char* addr, size_t bytes) { | |
| 3102 DWORD old_status; | |
|
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
467
diff
changeset
|
3103 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
| 0 | 3104 } |
| 3105 | |
| 3106 bool os::unguard_memory(char* addr, size_t bytes) { | |
| 3107 DWORD old_status; | |
|
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
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467
diff
changeset
|
3108 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
| 0 | 3109 } |
| 3110 | |
| 6197 | 3111 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } |
| 3112 void os::pd_free_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
| 0 | 3113 void os::numa_make_global(char *addr, size_t bytes) { } |
| 141 | 3114 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
| 0 | 3115 bool os::numa_topology_changed() { return false; } |
|
3918
a6128a8ed624
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3885
diff
changeset
|
3116 size_t os::numa_get_groups_num() { return MAX2(numa_node_list_holder.get_count(), 1); } |
| 0 | 3117 int os::numa_get_group_id() { return 0; } |
| 3118 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
|
3918
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7086226: UseNUMA fails on old versions of windows
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3885
diff
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|
3119 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3120 // Provide an answer for UMA systems |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3121 ids[0] = 0; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3122 return 1; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3123 } else { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3124 // check for size bigger than actual groups_num |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3125 size = MIN2(size, numa_get_groups_num()); |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3126 for (int i = 0; i < (int)size; i++) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3127 ids[i] = numa_node_list_holder.get_node_list_entry(i); |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3128 } |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3129 return size; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3130 } |
| 0 | 3131 } |
| 3132 | |
| 3133 bool os::get_page_info(char *start, page_info* info) { | |
| 3134 return false; | |
| 3135 } | |
| 3136 | |
| 3137 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 3138 return end; | |
| 3139 } | |
| 3140 | |
| 3141 char* os::non_memory_address_word() { | |
| 3142 // Must never look like an address returned by reserve_memory, | |
| 3143 // even in its subfields (as defined by the CPU immediate fields, | |
| 3144 // if the CPU splits constants across multiple instructions). | |
| 3145 return (char*)-1; | |
| 3146 } | |
| 3147 | |
| 3148 #define MAX_ERROR_COUNT 100 | |
| 3149 #define SYS_THREAD_ERROR 0xffffffffUL | |
| 3150 | |
| 3151 void os::pd_start_thread(Thread* thread) { | |
| 3152 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
| 3153 // Returns previous suspend state: | |
| 3154 // 0: Thread was not suspended | |
| 3155 // 1: Thread is running now | |
| 3156 // >1: Thread is still suspended. | |
| 3157 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
| 3158 } | |
| 3159 | |
| 3160 class HighResolutionInterval { | |
| 3161 // The default timer resolution seems to be 10 milliseconds. | |
| 3162 // (Where is this written down?) | |
| 3163 // If someone wants to sleep for only a fraction of the default, | |
| 3164 // then we set the timer resolution down to 1 millisecond for | |
| 3165 // the duration of their interval. | |
| 3166 // We carefully set the resolution back, since otherwise we | |
| 3167 // seem to incur an overhead (3%?) that we don't need. | |
| 3168 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
| 3169 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
| 3170 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
| 3171 // timeBeginPeriod() if the relative error exceeded some threshold. | |
| 3172 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
| 3173 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
| 3174 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
| 3175 // resolution timers running. | |
| 3176 private: | |
| 3177 jlong resolution; | |
| 3178 public: | |
| 3179 HighResolutionInterval(jlong ms) { | |
| 3180 resolution = ms % 10L; | |
| 3181 if (resolution != 0) { | |
| 3182 MMRESULT result = timeBeginPeriod(1L); | |
| 3183 } | |
| 3184 } | |
| 3185 ~HighResolutionInterval() { | |
| 3186 if (resolution != 0) { | |
| 3187 MMRESULT result = timeEndPeriod(1L); | |
| 3188 } | |
| 3189 resolution = 0L; | |
| 3190 } | |
| 3191 }; | |
| 3192 | |
| 3193 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
| 3194 jlong limit = (jlong) MAXDWORD; | |
| 3195 | |
| 3196 while(ms > limit) { | |
| 3197 int res; | |
| 3198 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
| 3199 return res; | |
| 3200 ms -= limit; | |
| 3201 } | |
| 3202 | |
| 3203 assert(thread == Thread::current(), "thread consistency check"); | |
| 3204 OSThread* osthread = thread->osthread(); | |
| 3205 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
| 3206 int result; | |
| 3207 if (interruptable) { | |
| 3208 assert(thread->is_Java_thread(), "must be java thread"); | |
| 3209 JavaThread *jt = (JavaThread *) thread; | |
| 3210 ThreadBlockInVM tbivm(jt); | |
| 3211 | |
| 3212 jt->set_suspend_equivalent(); | |
| 3213 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3214 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3215 | |
| 3216 HANDLE events[1]; | |
| 3217 events[0] = osthread->interrupt_event(); | |
| 3218 HighResolutionInterval *phri=NULL; | |
| 3219 if(!ForceTimeHighResolution) | |
| 3220 phri = new HighResolutionInterval( ms ); | |
| 3221 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
| 3222 result = OS_TIMEOUT; | |
| 3223 } else { | |
| 3224 ResetEvent(osthread->interrupt_event()); | |
| 3225 osthread->set_interrupted(false); | |
| 3226 result = OS_INTRPT; | |
| 3227 } | |
| 3228 delete phri; //if it is NULL, harmless | |
| 3229 | |
| 3230 // were we externally suspended while we were waiting? | |
| 3231 jt->check_and_wait_while_suspended(); | |
| 3232 } else { | |
| 3233 assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3234 Sleep((long) ms); | |
| 3235 result = OS_TIMEOUT; | |
| 3236 } | |
| 3237 return result; | |
| 3238 } | |
| 3239 | |
| 3240 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3241 void os::infinite_sleep() { | |
| 3242 while (true) { // sleep forever ... | |
| 3243 Sleep(100000); // ... 100 seconds at a time | |
| 3244 } | |
| 3245 } | |
| 3246 | |
| 3247 typedef BOOL (WINAPI * STTSignature)(void) ; | |
| 3248 | |
| 3249 os::YieldResult os::NakedYield() { | |
| 3250 // Use either SwitchToThread() or Sleep(0) | |
| 3251 // Consider passing back the return value from SwitchToThread(). | |
|
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3252 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
|
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|
3253 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
| 0 | 3254 } else { |
|
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|
3255 Sleep(0); |
| 0 | 3256 } |
| 3257 return os::YIELD_UNKNOWN ; | |
| 3258 } | |
| 3259 | |
| 3260 void os::yield() { os::NakedYield(); } | |
| 3261 | |
| 3262 void os::yield_all(int attempts) { | |
| 3263 // Yields to all threads, including threads with lower priorities | |
| 3264 Sleep(1); | |
| 3265 } | |
| 3266 | |
| 3267 // Win32 only gives you access to seven real priorities at a time, | |
| 3268 // so we compress Java's ten down to seven. It would be better | |
| 3269 // if we dynamically adjusted relative priorities. | |
| 3270 | |
|
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|
3271 int os::java_to_os_priority[CriticalPriority + 1] = { |
| 0 | 3272 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3273 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3274 THREAD_PRIORITY_LOWEST, // 2 | |
| 3275 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3276 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3277 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3278 THREAD_PRIORITY_NORMAL, // 6 | |
| 3279 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3280 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
| 3281 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
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|
3282 THREAD_PRIORITY_HIGHEST, // 10 MaxPriority |
|
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|
3283 THREAD_PRIORITY_HIGHEST // 11 CriticalPriority |
| 0 | 3284 }; |
| 3285 | |
|
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|
3286 int prio_policy1[CriticalPriority + 1] = { |
| 0 | 3287 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3288 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3289 THREAD_PRIORITY_LOWEST, // 2 | |
| 3290 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3291 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3292 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3293 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
| 3294 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3295 THREAD_PRIORITY_HIGHEST, // 8 | |
| 3296 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
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|
3297 THREAD_PRIORITY_TIME_CRITICAL, // 10 MaxPriority |
|
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|
3298 THREAD_PRIORITY_TIME_CRITICAL // 11 CriticalPriority |
| 0 | 3299 }; |
| 3300 | |
| 3301 static int prio_init() { | |
| 3302 // If ThreadPriorityPolicy is 1, switch tables | |
| 3303 if (ThreadPriorityPolicy == 1) { | |
| 3304 int i; | |
|
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|
3305 for (i = 0; i < CriticalPriority + 1; i++) { |
| 0 | 3306 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3307 } | |
| 3308 } | |
|
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|
3309 if (UseCriticalJavaThreadPriority) { |
|
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|
3310 os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority] ; |
|
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|
3311 } |
| 0 | 3312 return 0; |
| 3313 } | |
| 3314 | |
| 3315 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
| 3316 if (!UseThreadPriorities) return OS_OK; | |
| 3317 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
| 3318 return ret ? OS_OK : OS_ERR; | |
| 3319 } | |
| 3320 | |
| 3321 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
| 3322 if ( !UseThreadPriorities ) { | |
| 3323 *priority_ptr = java_to_os_priority[NormPriority]; | |
| 3324 return OS_OK; | |
| 3325 } | |
| 3326 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
| 3327 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
| 3328 assert(false, "GetThreadPriority failed"); | |
| 3329 return OS_ERR; | |
| 3330 } | |
| 3331 *priority_ptr = os_prio; | |
| 3332 return OS_OK; | |
| 3333 } | |
| 3334 | |
| 3335 | |
| 3336 // Hint to the underlying OS that a task switch would not be good. | |
| 3337 // Void return because it's a hint and can fail. | |
| 3338 void os::hint_no_preempt() {} | |
| 3339 | |
| 3340 void os::interrupt(Thread* thread) { | |
| 3341 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3342 "possibility of dangling Thread pointer"); | |
| 3343 | |
| 3344 OSThread* osthread = thread->osthread(); | |
| 3345 osthread->set_interrupted(true); | |
| 3346 // More than one thread can get here with the same value of osthread, | |
| 3347 // resulting in multiple notifications. We do, however, want the store | |
| 3348 // to interrupted() to be visible to other threads before we post | |
| 3349 // the interrupt event. | |
| 3350 OrderAccess::release(); | |
| 3351 SetEvent(osthread->interrupt_event()); | |
| 3352 // For JSR166: unpark after setting status | |
| 3353 if (thread->is_Java_thread()) | |
| 3354 ((JavaThread*)thread)->parker()->unpark(); | |
| 3355 | |
| 3356 ParkEvent * ev = thread->_ParkEvent ; | |
| 3357 if (ev != NULL) ev->unpark() ; | |
| 3358 | |
| 3359 } | |
| 3360 | |
| 3361 | |
| 3362 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 3363 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3364 "possibility of dangling Thread pointer"); | |
| 3365 | |
| 3366 OSThread* osthread = thread->osthread(); | |
|
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|
3367 bool interrupted = osthread->interrupted(); |
|
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3368 // There is no synchronization between the setting of the interrupt |
|
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3369 // and it being cleared here. It is critical - see 6535709 - that |
|
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3370 // we only clear the interrupt state, and reset the interrupt event, |
|
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|
3371 // if we are going to report that we were indeed interrupted - else |
|
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|
3372 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
|
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|
3373 // depending on the timing |
|
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|
3374 if (interrupted && clear_interrupted) { |
| 0 | 3375 osthread->set_interrupted(false); |
| 3376 ResetEvent(osthread->interrupt_event()); | |
| 3377 } // Otherwise leave the interrupted state alone | |
| 3378 | |
| 3379 return interrupted; | |
| 3380 } | |
| 3381 | |
| 3382 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
| 3383 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 3384 CONTEXT context; | |
| 3385 context.ContextFlags = CONTEXT_CONTROL; | |
| 3386 HANDLE handle = thread->osthread()->thread_handle(); | |
| 3387 #ifdef _M_IA64 | |
| 3388 assert(0, "Fix get_thread_pc"); | |
| 3389 return ExtendedPC(NULL); | |
| 3390 #else | |
| 3391 if (GetThreadContext(handle, &context)) { | |
| 3392 #ifdef _M_AMD64 | |
| 3393 return ExtendedPC((address) context.Rip); | |
| 3394 #else | |
| 3395 return ExtendedPC((address) context.Eip); | |
| 3396 #endif | |
| 3397 } else { | |
| 3398 return ExtendedPC(NULL); | |
| 3399 } | |
| 3400 #endif | |
| 3401 } | |
| 3402 | |
| 3403 // GetCurrentThreadId() returns DWORD | |
| 3404 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
| 3405 | |
| 3406 static int _initial_pid = 0; | |
| 3407 | |
| 3408 int os::current_process_id() | |
| 3409 { | |
| 3410 return (_initial_pid ? _initial_pid : _getpid()); | |
| 3411 } | |
| 3412 | |
| 3413 int os::win32::_vm_page_size = 0; | |
| 3414 int os::win32::_vm_allocation_granularity = 0; | |
| 3415 int os::win32::_processor_type = 0; | |
| 3416 // Processor level is not available on non-NT systems, use vm_version instead | |
| 3417 int os::win32::_processor_level = 0; | |
| 3418 julong os::win32::_physical_memory = 0; | |
| 3419 size_t os::win32::_default_stack_size = 0; | |
| 3420 | |
| 3421 intx os::win32::_os_thread_limit = 0; | |
| 3422 volatile intx os::win32::_os_thread_count = 0; | |
| 3423 | |
| 3424 bool os::win32::_is_nt = false; | |
|
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|
3425 bool os::win32::_is_windows_2003 = false; |
|
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|
3426 bool os::win32::_is_windows_server = false; |
| 0 | 3427 |
| 3428 void os::win32::initialize_system_info() { | |
| 3429 SYSTEM_INFO si; | |
| 3430 GetSystemInfo(&si); | |
| 3431 _vm_page_size = si.dwPageSize; | |
| 3432 _vm_allocation_granularity = si.dwAllocationGranularity; | |
| 3433 _processor_type = si.dwProcessorType; | |
| 3434 _processor_level = si.wProcessorLevel; | |
|
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|
3435 set_processor_count(si.dwNumberOfProcessors); |
| 0 | 3436 |
|
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|
3437 MEMORYSTATUSEX ms; |
|
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|
3438 ms.dwLength = sizeof(ms); |
|
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|
3439 |
| 0 | 3440 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
| 3441 // dwMemoryLoad (% of memory in use) | |
|
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|
3442 GlobalMemoryStatusEx(&ms); |
|
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|
3443 _physical_memory = ms.ullTotalPhys; |
| 0 | 3444 |
|
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|
3445 OSVERSIONINFOEX oi; |
|
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|
3446 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
|
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|
3447 GetVersionEx((OSVERSIONINFO*)&oi); |
| 0 | 3448 switch(oi.dwPlatformId) { |
| 3449 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
|
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|
3450 case VER_PLATFORM_WIN32_NT: |
|
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|
3451 _is_nt = true; |
|
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|
3452 { |
|
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|
3453 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
|
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|
3454 if (os_vers == 5002) { |
|
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|
3455 _is_windows_2003 = true; |
|
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|
3456 } |
|
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|
3457 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
|
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|
3458 oi.wProductType == VER_NT_SERVER) { |
|
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|
3459 _is_windows_server = true; |
|
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|
3460 } |
|
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|
3461 } |
|
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|
3462 break; |
| 0 | 3463 default: fatal("Unknown platform"); |
| 3464 } | |
| 3465 | |
| 3466 _default_stack_size = os::current_stack_size(); | |
| 3467 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
| 3468 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
| 3469 "stack size not a multiple of page size"); | |
| 3470 | |
| 3471 initialize_performance_counter(); | |
| 3472 | |
| 3473 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
| 3474 // known to deadlock the system, if the VM issues to thread operations with | |
| 3475 // a too high frequency, e.g., such as changing the priorities. | |
| 3476 // The 6000 seems to work well - no deadlocks has been notices on the test | |
| 3477 // programs that we have seen experience this problem. | |
| 3478 if (!os::win32::is_nt()) { | |
| 3479 StarvationMonitorInterval = 6000; | |
| 3480 } | |
| 3481 } | |
| 3482 | |
| 3483 | |
|
3833
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diff
changeset
|
3484 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
|
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3800
diff
changeset
|
3485 char path[MAX_PATH]; |
|
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diff
changeset
|
3486 DWORD size; |
|
b1cbb0907b36
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diff
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|
3487 DWORD pathLen = (DWORD)sizeof(path); |
|
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diff
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|
3488 HINSTANCE result = NULL; |
|
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diff
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|
3489 |
|
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diff
changeset
|
3490 // only allow library name without path component |
|
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parents:
3800
diff
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|
3491 assert(strchr(name, '\\') == NULL, "path not allowed"); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
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|
3492 assert(strchr(name, ':') == NULL, "path not allowed"); |
|
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3800
diff
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|
3493 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
|
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3800
diff
changeset
|
3494 jio_snprintf(ebuf, ebuflen, |
|
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diff
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|
3495 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
|
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diff
changeset
|
3496 return NULL; |
|
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3800
diff
changeset
|
3497 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
3498 |
|
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zgu
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diff
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|
3499 // search system directory |
|
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3800
diff
changeset
|
3500 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
|
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3800
diff
changeset
|
3501 strcat(path, "\\"); |
|
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diff
changeset
|
3502 strcat(path, name); |
|
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parents:
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diff
changeset
|
3503 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
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parents:
3800
diff
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|
3504 return result; |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
diff
changeset
|
3505 } |
|
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diff
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|
3506 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
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|
3507 |
|
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diff
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|
3508 // try Windows directory |
|
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|
3509 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
|
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zgu
parents:
3800
diff
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|
3510 strcat(path, "\\"); |
|
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parents:
3800
diff
changeset
|
3511 strcat(path, name); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
3512 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
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parents:
3800
diff
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|
3513 return result; |
|
b1cbb0907b36
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zgu
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3800
diff
changeset
|
3514 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
3515 } |
|
b1cbb0907b36
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diff
changeset
|
3516 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3517 jio_snprintf(ebuf, ebuflen, |
|
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parents:
3800
diff
changeset
|
3518 "os::win32::load_windows_dll() cannot load %s from system directories.", name); |
|
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|
3519 return NULL; |
|
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zgu
parents:
3800
diff
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|
3520 } |
|
b1cbb0907b36
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diff
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|
3521 |
| 0 | 3522 void os::win32::setmode_streams() { |
| 3523 _setmode(_fileno(stdin), _O_BINARY); | |
| 3524 _setmode(_fileno(stdout), _O_BINARY); | |
| 3525 _setmode(_fileno(stderr), _O_BINARY); | |
| 3526 } | |
| 3527 | |
| 3528 | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3529 bool os::is_debugger_attached() { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3530 return IsDebuggerPresent() ? true : false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3531 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3532 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3533 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3534 void os::wait_for_keypress_at_exit(void) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3535 if (PauseAtExit) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3536 fprintf(stderr, "Press any key to continue...\n"); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3537 fgetc(stdin); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3538 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3539 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3540 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3541 |
| 0 | 3542 int os::message_box(const char* title, const char* message) { |
| 3543 int result = MessageBox(NULL, message, title, | |
| 3544 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
| 3545 return result == IDYES; | |
| 3546 } | |
| 3547 | |
| 3548 int os::allocate_thread_local_storage() { | |
| 3549 return TlsAlloc(); | |
| 3550 } | |
| 3551 | |
| 3552 | |
| 3553 void os::free_thread_local_storage(int index) { | |
| 3554 TlsFree(index); | |
| 3555 } | |
| 3556 | |
| 3557 | |
| 3558 void os::thread_local_storage_at_put(int index, void* value) { | |
| 3559 TlsSetValue(index, value); | |
| 3560 assert(thread_local_storage_at(index) == value, "Just checking"); | |
| 3561 } | |
| 3562 | |
| 3563 | |
| 3564 void* os::thread_local_storage_at(int index) { | |
| 3565 return TlsGetValue(index); | |
| 3566 } | |
| 3567 | |
| 3568 | |
| 3569 #ifndef PRODUCT | |
| 3570 #ifndef _WIN64 | |
| 3571 // Helpers to check whether NX protection is enabled | |
| 3572 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
| 3573 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 3574 pex->ExceptionRecord->NumberParameters > 0 && | |
| 3575 pex->ExceptionRecord->ExceptionInformation[0] == | |
| 3576 EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 3577 return EXCEPTION_EXECUTE_HANDLER; | |
| 3578 } | |
| 3579 return EXCEPTION_CONTINUE_SEARCH; | |
| 3580 } | |
| 3581 | |
| 3582 void nx_check_protection() { | |
| 3583 // If NX is enabled we'll get an exception calling into code on the stack | |
| 3584 char code[] = { (char)0xC3 }; // ret | |
| 3585 void *code_ptr = (void *)code; | |
| 3586 __try { | |
| 3587 __asm call code_ptr | |
| 3588 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
| 3589 tty->print_raw_cr("NX protection detected."); | |
| 3590 } | |
| 3591 } | |
| 3592 #endif // _WIN64 | |
| 3593 #endif // PRODUCT | |
| 3594 | |
| 3595 // this is called _before_ the global arguments have been parsed | |
| 3596 void os::init(void) { | |
| 3597 _initial_pid = _getpid(); | |
| 3598 | |
| 3599 init_random(1234567); | |
| 3600 | |
| 3601 win32::initialize_system_info(); | |
| 3602 win32::setmode_streams(); | |
| 3603 init_page_sizes((size_t) win32::vm_page_size()); | |
| 3604 | |
| 3605 // For better scalability on MP systems (must be called after initialize_system_info) | |
| 3606 #ifndef PRODUCT | |
| 3607 if (is_MP()) { | |
| 3608 NoYieldsInMicrolock = true; | |
| 3609 } | |
| 3610 #endif | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3611 // This may be overridden later when argument processing is done. |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3612 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3613 os::win32::is_windows_2003()); |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3614 |
| 0 | 3615 // Initialize main_process and main_thread |
| 3616 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
|
389
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3617 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
| 0 | 3618 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
| 3619 fatal("DuplicateHandle failed\n"); | |
| 3620 } | |
| 3621 main_thread_id = (int) GetCurrentThreadId(); | |
| 3622 } | |
| 3623 | |
| 3624 // To install functions for atexit processing | |
| 3625 extern "C" { | |
| 3626 static void perfMemory_exit_helper() { | |
| 3627 perfMemory_exit(); | |
| 3628 } | |
| 3629 } | |
| 3630 | |
| 3631 // this is called _after_ the global arguments have been parsed | |
| 3632 jint os::init_2(void) { | |
| 3633 // Allocate a single page and mark it as readable for safepoint polling | |
| 3634 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
| 3635 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
| 3636 | |
| 3637 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
| 3638 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
| 3639 | |
| 3640 os::set_polling_page( polling_page ); | |
| 3641 | |
| 3642 #ifndef PRODUCT | |
| 3643 if( Verbose && PrintMiscellaneous ) | |
| 3644 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 3645 #endif | |
| 3646 | |
| 3647 if (!UseMembar) { | |
| 656 | 3648 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
| 0 | 3649 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
| 3650 | |
| 656 | 3651 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
| 0 | 3652 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
| 3653 | |
| 3654 os::set_memory_serialize_page( mem_serialize_page ); | |
| 3655 | |
| 3656 #ifndef PRODUCT | |
| 3657 if(Verbose && PrintMiscellaneous) | |
| 3658 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 3659 #endif | |
| 3885 | 3660 } |
| 0 | 3661 |
|
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3662 os::large_page_init(); |
| 0 | 3663 |
| 3664 // Setup Windows Exceptions | |
| 3665 | |
| 3666 // for debugging float code generation bugs | |
| 3667 if (ForceFloatExceptions) { | |
| 3668 #ifndef _WIN64 | |
| 3669 static long fp_control_word = 0; | |
| 3670 __asm { fstcw fp_control_word } | |
| 3671 // see Intel PPro Manual, Vol. 2, p 7-16 | |
| 3672 const long precision = 0x20; | |
| 3673 const long underflow = 0x10; | |
| 3674 const long overflow = 0x08; | |
| 3675 const long zero_div = 0x04; | |
| 3676 const long denorm = 0x02; | |
| 3677 const long invalid = 0x01; | |
| 3678 fp_control_word |= invalid; | |
| 3679 __asm { fldcw fp_control_word } | |
| 3680 #endif | |
| 3681 } | |
| 3682 | |
| 3683 // If stack_commit_size is 0, windows will reserve the default size, | |
| 3684 // but only commit a small portion of it. | |
| 3685 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
| 3686 size_t default_reserve_size = os::win32::default_stack_size(); | |
| 3687 size_t actual_reserve_size = stack_commit_size; | |
| 3688 if (stack_commit_size < default_reserve_size) { | |
| 3689 // If stack_commit_size == 0, we want this too | |
| 3690 actual_reserve_size = default_reserve_size; | |
| 3691 } | |
| 3692 | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1865
diff
changeset
|
3693 // Check minimum allowable stack size for thread creation and to initialize |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3694 // the java system classes, including StackOverflowError - depends on page |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3695 // size. Add a page for compiler2 recursion in main thread. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3696 // Add in 2*BytesPerWord times page size to account for VM stack during |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3697 // class initialization depending on 32 or 64 bit VM. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3698 size_t min_stack_allowed = |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3699 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1865
diff
changeset
|
3700 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3701 if (actual_reserve_size < min_stack_allowed) { |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3702 tty->print_cr("\nThe stack size specified is too small, " |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3703 "Specify at least %dk", |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1865
diff
changeset
|
3704 min_stack_allowed / K); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3705 return JNI_ERR; |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3706 } |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1865
diff
changeset
|
3707 |
| 0 | 3708 JavaThread::set_stack_size_at_create(stack_commit_size); |
| 3709 | |
| 3710 // Calculate theoretical max. size of Threads to guard gainst artifical | |
| 3711 // out-of-memory situations, where all available address-space has been | |
| 3712 // reserved by thread stacks. | |
| 3713 assert(actual_reserve_size != 0, "Must have a stack"); | |
| 3714 | |
| 3715 // Calculate the thread limit when we should start doing Virtual Memory | |
| 3716 // banging. Currently when the threads will have used all but 200Mb of space. | |
| 3717 // | |
| 3718 // TODO: consider performing a similar calculation for commit size instead | |
| 3719 // as reserve size, since on a 64-bit platform we'll run into that more | |
| 3720 // often than running out of virtual memory space. We can use the | |
| 3721 // lower value of the two calculations as the os_thread_limit. | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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79
diff
changeset
|
3722 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
| 0 | 3723 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
| 3724 | |
| 3725 // at exit methods are called in the reverse order of their registration. | |
| 3726 // there is no limit to the number of functions registered. atexit does | |
| 3727 // not set errno. | |
| 3728 | |
| 3729 if (PerfAllowAtExitRegistration) { | |
| 3730 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 3731 // atexit functions can be delayed until process exit time, which | |
| 3732 // can be problematic for embedded VM situations. Embedded VMs should | |
| 3733 // call DestroyJavaVM() to assure that VM resources are released. | |
| 3734 | |
| 3735 // note: perfMemory_exit_helper atexit function may be removed in | |
| 3736 // the future if the appropriate cleanup code can be added to the | |
| 3737 // VM_Exit VMOperation's doit method. | |
| 3738 if (atexit(perfMemory_exit_helper) != 0) { | |
| 3739 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
| 3740 } | |
| 3741 } | |
| 3742 | |
| 3743 #ifndef _WIN64 | |
| 3744 // Print something if NX is enabled (win32 on AMD64) | |
| 3745 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
| 3746 #endif | |
| 3747 | |
| 3748 // initialize thread priority policy | |
| 3749 prio_init(); | |
| 3750 | |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3751 if (UseNUMA && !ForceNUMA) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3752 UseNUMA = false; // We don't fully support this yet |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3753 } |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3754 |
| 3885 | 3755 if (UseNUMAInterleaving) { |
| 3756 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
| 3757 bool success = numa_interleaving_init(); | |
| 3758 if (!success) UseNUMAInterleaving = false; | |
|
462
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3759 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
3760 |
| 0 | 3761 return JNI_OK; |
| 3762 } | |
| 3763 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3764 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3765 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
3766 } |
| 0 | 3767 |
| 3768 // Mark the polling page as unreadable | |
| 3769 void os::make_polling_page_unreadable(void) { | |
| 3770 DWORD old_status; | |
| 3771 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
| 3772 fatal("Could not disable polling page"); | |
| 3773 }; | |
| 3774 | |
| 3775 // Mark the polling page as readable | |
| 3776 void os::make_polling_page_readable(void) { | |
| 3777 DWORD old_status; | |
| 3778 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
| 3779 fatal("Could not enable polling page"); | |
| 3780 }; | |
| 3781 | |
| 3782 | |
| 3783 int os::stat(const char *path, struct stat *sbuf) { | |
| 3784 char pathbuf[MAX_PATH]; | |
| 3785 if (strlen(path) > MAX_PATH - 1) { | |
| 3786 errno = ENAMETOOLONG; | |
| 3787 return -1; | |
| 3788 } | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3789 os::native_path(strcpy(pathbuf, path)); |
| 0 | 3790 int ret = ::stat(pathbuf, sbuf); |
| 3791 if (sbuf != NULL && UseUTCFileTimestamp) { | |
| 3792 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
| 3793 // the system timezone and so can return different values for the | |
| 3794 // same file if/when daylight savings time changes. This adjustment | |
| 3795 // makes sure the same timestamp is returned regardless of the TZ. | |
| 3796 // | |
| 3797 // See: | |
| 3798 // http://msdn.microsoft.com/library/ | |
| 3799 // default.asp?url=/library/en-us/sysinfo/base/ | |
| 3800 // time_zone_information_str.asp | |
| 3801 // and | |
| 3802 // http://msdn.microsoft.com/library/default.asp?url= | |
| 3803 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
| 3804 // | |
| 3805 // NOTE: there is a insidious bug here: If the timezone is changed | |
| 3806 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
| 3807 // the adjustment we do here will be wrong and we'll return the wrong | |
| 3808 // value (which will likely end up creating an invalid class data | |
| 3809 // archive). Absent a better API for this, or some time zone locking | |
| 3810 // mechanism, we'll have to live with this risk. | |
| 3811 TIME_ZONE_INFORMATION tz; | |
| 3812 DWORD tzid = GetTimeZoneInformation(&tz); | |
| 3813 int daylightBias = | |
| 3814 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
| 3815 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
| 3816 } | |
| 3817 return ret; | |
| 3818 } | |
| 3819 | |
| 3820 | |
| 3821 #define FT2INT64(ft) \ | |
| 3822 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
| 3823 | |
| 3824 | |
| 3825 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 3826 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 3827 // of a thread. | |
| 3828 // | |
| 3829 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
| 3830 // the fast estimate available on the platform. | |
| 3831 | |
| 3832 // current_thread_cpu_time() is not optimized for Windows yet | |
| 3833 jlong os::current_thread_cpu_time() { | |
| 3834 // return user + sys since the cost is the same | |
| 3835 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
| 3836 } | |
| 3837 | |
| 3838 jlong os::thread_cpu_time(Thread* thread) { | |
| 3839 // consistent with what current_thread_cpu_time() returns. | |
| 3840 return os::thread_cpu_time(thread, true /* user+sys */); | |
| 3841 } | |
| 3842 | |
| 3843 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 3844 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 3845 } | |
| 3846 | |
| 3847 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
| 3848 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
| 3849 // If this function changes, os::is_thread_cpu_time_supported() should too | |
| 3850 if (os::win32::is_nt()) { | |
| 3851 FILETIME CreationTime; | |
| 3852 FILETIME ExitTime; | |
| 3853 FILETIME KernelTime; | |
| 3854 FILETIME UserTime; | |
| 3855 | |
| 3856 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
| 3857 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 3858 return -1; | |
| 3859 else | |
| 3860 if (user_sys_cpu_time) { | |
| 3861 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
| 3862 } else { | |
| 3863 return FT2INT64(UserTime) * 100; | |
| 3864 } | |
| 3865 } else { | |
| 3866 return (jlong) timeGetTime() * 1000000; | |
| 3867 } | |
| 3868 } | |
| 3869 | |
| 3870 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 3871 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 3872 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 3873 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 3874 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 3875 } | |
| 3876 | |
| 3877 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 3878 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 3879 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 3880 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 3881 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 3882 } | |
| 3883 | |
| 3884 bool os::is_thread_cpu_time_supported() { | |
| 3885 // see os::thread_cpu_time | |
| 3886 if (os::win32::is_nt()) { | |
| 3887 FILETIME CreationTime; | |
| 3888 FILETIME ExitTime; | |
| 3889 FILETIME KernelTime; | |
| 3890 FILETIME UserTime; | |
| 3891 | |
| 3892 if ( GetThreadTimes(GetCurrentThread(), | |
| 3893 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 3894 return false; | |
| 3895 else | |
| 3896 return true; | |
| 3897 } else { | |
| 3898 return false; | |
| 3899 } | |
| 3900 } | |
| 3901 | |
| 3902 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
| 3903 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
| 3904 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
| 3905 // If we wanted to implement loadavg on Windows, we have a few options: | |
| 3906 // | |
| 3907 // a) Query CPU usage and run queue length and "fake" an answer by | |
| 3908 // returning the CPU usage if it's under 100%, and the run queue | |
| 3909 // length otherwise. It turns out that querying is pretty slow | |
| 3910 // on Windows, on the order of 200 microseconds on a fast machine. | |
| 3911 // Note that on the Windows the CPU usage value is the % usage | |
| 3912 // since the last time the API was called (and the first call | |
| 3913 // returns 100%), so we'd have to deal with that as well. | |
| 3914 // | |
| 3915 // b) Sample the "fake" answer using a sampling thread and store | |
| 3916 // the answer in a global variable. The call to loadavg would | |
| 3917 // just return the value of the global, avoiding the slow query. | |
| 3918 // | |
| 3919 // c) Sample a better answer using exponential decay to smooth the | |
| 3920 // value. This is basically the algorithm used by UNIX kernels. | |
| 3921 // | |
| 3922 // Note that sampling thread starvation could affect both (b) and (c). | |
| 3923 int os::loadavg(double loadavg[], int nelem) { | |
| 3924 return -1; | |
| 3925 } | |
| 3926 | |
| 3927 | |
| 3928 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
| 3929 bool os::dont_yield() { | |
| 3930 return DontYieldALot; | |
| 3931 } | |
| 3932 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3933 // 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
|
3934 // 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
|
3935 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3936 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
|
3937 char pathbuf[MAX_PATH]; |
|
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 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3940 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3941 return -1; |
|
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 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3944 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
|
3945 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3946 |
| 0 | 3947 // Is a (classpath) directory empty? |
| 3948 bool os::dir_is_empty(const char* path) { | |
| 3949 WIN32_FIND_DATA fd; | |
| 3950 HANDLE f = FindFirstFile(path, &fd); | |
| 3951 if (f == INVALID_HANDLE_VALUE) { | |
| 3952 return true; | |
| 3953 } | |
| 3954 FindClose(f); | |
| 3955 return false; | |
| 3956 } | |
| 3957 | |
| 3958 // create binary file, rewriting existing file if required | |
| 3959 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 3960 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
| 3961 if (!rewrite_existing) { | |
| 3962 oflags |= _O_EXCL; | |
| 3963 } | |
| 3964 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
| 3965 } | |
| 3966 | |
| 3967 // return current position of file pointer | |
| 3968 jlong os::current_file_offset(int fd) { | |
| 3969 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
| 3970 } | |
| 3971 | |
| 3972 // move file pointer to the specified offset | |
| 3973 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 3974 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
| 3975 } | |
| 3976 | |
| 3977 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3978 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
|
3979 return (jlong) ::_lseeki64(fd, offset, whence); |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3982 // 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
|
3983 // from src/windows/hpi/src/path_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3984 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3985 /* 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
|
3986 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
|
3987 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
|
3988 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
|
3989 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
|
3990 treat double-byte lead characters correctly. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3991 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3992 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
|
3993 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
|
3994 succeeds. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3995 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3996 char *src = path, *dst = path, *end = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3997 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
|
3998 point to the colon following the drive |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
3999 letter */ |
|
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 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4002 assert(((!::IsDBCSLeadByte('/')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4003 && (!::IsDBCSLeadByte('\\')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4004 && (!::IsDBCSLeadByte(':'))), |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4005 "Illegal lead byte"); |
|
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 /* Check for leading separators */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4008 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4009 while (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4010 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4011 } |
|
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 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4014 /* 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
|
4015 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
|
4016 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
|
4017 "/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
|
4018 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4019 colon = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4020 *dst++ = ':'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4021 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4022 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4023 src = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4024 if (isfilesep(src[0]) && isfilesep(src[1])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4025 /* 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
|
4026 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
|
4027 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
|
4028 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
|
4029 src = dst = path + 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4030 path[0] = '\\'; /* Force first separator to '\\' */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4031 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4032 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4033 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4034 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4035 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4036 /* 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
|
4037 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
|
4038 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
|
4039 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
|
4040 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4041 while (*src != '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4042 if (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4043 *dst++ = '\\'; src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4044 while (isfilesep(*src)) src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4045 if (*src == '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4046 /* Check for trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4047 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4048 if (colon == dst - 2) break; /* "z:\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4049 if (dst == path + 1) break; /* "\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4050 if (dst == path + 2 && isfilesep(path[0])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4051 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4052 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
|
4053 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
|
4054 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
|
4055 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
|
4056 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
|
4057 directory of the current drive. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4058 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4059 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4060 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
|
4061 remove trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4062 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4063 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4064 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4065 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4066 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4067 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4068 if (*src) *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4069 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4070 } else { /* Copy a single-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4071 char c = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4072 *dst++ = c; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4073 /* Space is not a legal ending character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4074 if (c != ' ') end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4075 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4076 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4077 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4078 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4079 *end = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4080 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4081 /* 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
|
4082 if (colon == dst - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4083 path[2] = '.'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4084 path[3] = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4085 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4086 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4087 #ifdef DEBUG |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4088 jio_fprintf(stderr, "sysNativePath: %s\n", path); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4089 #endif DEBUG |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4090 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4091 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4092 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4093 // 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
|
4094 // 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
|
4095 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4096 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4097 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4098 long high = (long)(length >> 32); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4099 DWORD ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4100 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4101 if (h == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4102 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4103 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4104 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4105 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4106 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4107 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4108 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4109 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4110 if (::SetEndOfFile(h) == FALSE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4111 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4112 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4113 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4114 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4115 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4116 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4117 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4118 // 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
|
4119 // 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
|
4120 // 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
|
4121 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4122 int os::fsync(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4123 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4124 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4125 if ( (!::FlushFileBuffers(handle)) && |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4126 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4127 /* from winerror.h */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4128 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4129 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4130 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4131 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4132 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4133 static int nonSeekAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4134 static int stdinAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4135 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4136 #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
|
4137 #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
|
4138 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4139 // 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
|
4140 // 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
|
4141 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4142 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4143 jlong cur, end; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4144 struct _stati64 stbuf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4145 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4146 if (::_fstati64(fd, &stbuf64) >= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4147 int mode = stbuf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4148 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4149 int ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4150 long lpbytes; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4151 if (fd == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4152 ret = stdinAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4153 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4154 ret = nonSeekAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4155 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4156 (*bytes) = (jlong)(lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4157 return ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4158 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4159 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4160 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4161 } 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
|
4162 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4163 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4164 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4165 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4166 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4167 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4168 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4169 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4170 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4171 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4172 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4173 // 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
|
4174 // 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
|
4175 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4176 static int nonSeekAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4177 /* 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
|
4178 * (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
|
4179 * connected to an exec'd process). |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4180 * Standard Input is a special case. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4181 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4182 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4183 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4184 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4185 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4186 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4187 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4188 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4189 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
|
4190 /* 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
|
4191 * 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
|
4192 * 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
|
4193 * The only alternative is to raise an Exception, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4194 * which isn't really warranted. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4195 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4196 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4197 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4198 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4199 *pbytes = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4200 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4201 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4202 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4203 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4204 #define MAX_INPUT_EVENTS 2000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4205 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4206 // This code is a copy of JDK's stdinAvailable |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4207 // 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
|
4208 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4209 static int stdinAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4210 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4211 DWORD numEventsRead = 0; /* Number of events read from buffer */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4212 DWORD numEvents = 0; /* Number of events in buffer */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4213 DWORD i = 0; /* Loop index */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4214 DWORD curLength = 0; /* Position marker */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4215 DWORD actualLength = 0; /* Number of bytes readable */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4216 BOOL error = FALSE; /* Error holder */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4217 INPUT_RECORD *lpBuffer; /* Pointer to records of input events */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4218 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4219 if ((han = ::GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4220 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4221 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4222 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4223 /* Construct an array of input records in the console buffer */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4224 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4225 if (error == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4226 return nonSeekAvailable(fd, pbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4227 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4228 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4229 /* lpBuffer must fit into 64K or else PeekConsoleInput fails */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4230 if (numEvents > MAX_INPUT_EVENTS) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4231 numEvents = MAX_INPUT_EVENTS; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4232 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4233 |
| 6197 | 4234 lpBuffer = (INPUT_RECORD *)os::malloc(numEvents * sizeof(INPUT_RECORD), mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4235 if (lpBuffer == NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4236 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4237 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4238 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4239 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4240 if (error == 0) { |
| 6197 | 4241 os::free(lpBuffer, mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4242 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4243 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4244 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4245 /* Examine input records for the number of bytes available */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4246 for(i=0; i<numEvents; i++) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4247 if (lpBuffer[i].EventType == KEY_EVENT) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4248 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4249 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4250 &(lpBuffer[i].Event); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4251 if (keyRecord->bKeyDown == TRUE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4252 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4253 curLength++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4254 if (*keyPressed == '\r') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4255 actualLength = curLength; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4256 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4257 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4258 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4259 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4260 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4261 if(lpBuffer != NULL) { |
| 6197 | 4262 os::free(lpBuffer, mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4263 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4264 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4265 *pbytes = (long) actualLength; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4266 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4267 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4268 |
| 0 | 4269 // Map a block of memory. |
| 6197 | 4270 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4271 char *addr, size_t bytes, bool read_only, |
| 4272 bool allow_exec) { | |
| 4273 HANDLE hFile; | |
| 4274 char* base; | |
| 4275 | |
| 4276 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
| 4277 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
| 4278 if (hFile == NULL) { | |
| 4279 if (PrintMiscellaneous && Verbose) { | |
| 4280 DWORD err = GetLastError(); | |
| 4281 tty->print_cr("CreateFile() failed: GetLastError->%ld."); | |
| 4282 } | |
| 4283 return NULL; | |
| 4284 } | |
| 4285 | |
| 4286 if (allow_exec) { | |
| 4287 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
| 4288 // unless it comes from a PE image (which the shared archive is not.) | |
| 4289 // Even VirtualProtect refuses to give execute access to mapped memory | |
| 4290 // that was not previously executable. | |
| 4291 // | |
| 4292 // Instead, stick the executable region in anonymous memory. Yuck. | |
| 4293 // Penalty is that ~4 pages will not be shareable - in the future | |
| 4294 // we might consider DLLizing the shared archive with a proper PE | |
| 4295 // header so that mapping executable + sharing is possible. | |
| 4296 | |
| 4297 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
| 4298 PAGE_READWRITE); | |
| 4299 if (base == NULL) { | |
| 4300 if (PrintMiscellaneous && Verbose) { | |
| 4301 DWORD err = GetLastError(); | |
| 4302 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
| 4303 } | |
| 4304 CloseHandle(hFile); | |
| 4305 return NULL; | |
| 4306 } | |
| 4307 | |
| 4308 DWORD bytes_read; | |
| 4309 OVERLAPPED overlapped; | |
| 4310 overlapped.Offset = (DWORD)file_offset; | |
| 4311 overlapped.OffsetHigh = 0; | |
| 4312 overlapped.hEvent = NULL; | |
| 4313 // ReadFile guarantees that if the return value is true, the requested | |
| 4314 // number of bytes were read before returning. | |
| 4315 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
| 4316 if (!res) { | |
| 4317 if (PrintMiscellaneous && Verbose) { | |
| 4318 DWORD err = GetLastError(); | |
| 4319 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
| 4320 } | |
| 4321 release_memory(base, bytes); | |
| 4322 CloseHandle(hFile); | |
| 4323 return NULL; | |
| 4324 } | |
| 4325 } else { | |
| 4326 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
| 4327 NULL /*file_name*/); | |
| 4328 if (hMap == NULL) { | |
| 4329 if (PrintMiscellaneous && Verbose) { | |
| 4330 DWORD err = GetLastError(); | |
| 4331 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld."); | |
| 4332 } | |
| 4333 CloseHandle(hFile); | |
| 4334 return NULL; | |
| 4335 } | |
| 4336 | |
| 4337 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
| 4338 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
| 4339 (DWORD)bytes, addr); | |
| 4340 if (base == NULL) { | |
| 4341 if (PrintMiscellaneous && Verbose) { | |
| 4342 DWORD err = GetLastError(); | |
| 4343 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
| 4344 } | |
| 4345 CloseHandle(hMap); | |
| 4346 CloseHandle(hFile); | |
| 4347 return NULL; | |
| 4348 } | |
| 4349 | |
| 4350 if (CloseHandle(hMap) == 0) { | |
| 4351 if (PrintMiscellaneous && Verbose) { | |
| 4352 DWORD err = GetLastError(); | |
| 4353 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
| 4354 } | |
| 4355 CloseHandle(hFile); | |
| 4356 return base; | |
| 4357 } | |
| 4358 } | |
| 4359 | |
| 4360 if (allow_exec) { | |
| 4361 DWORD old_protect; | |
| 4362 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
| 4363 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
| 4364 | |
| 4365 if (!res) { | |
| 4366 if (PrintMiscellaneous && Verbose) { | |
| 4367 DWORD err = GetLastError(); | |
| 4368 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
| 4369 } | |
| 4370 // Don't consider this a hard error, on IA32 even if the | |
| 4371 // VirtualProtect fails, we should still be able to execute | |
| 4372 CloseHandle(hFile); | |
| 4373 return base; | |
| 4374 } | |
| 4375 } | |
| 4376 | |
| 4377 if (CloseHandle(hFile) == 0) { | |
| 4378 if (PrintMiscellaneous && Verbose) { | |
| 4379 DWORD err = GetLastError(); | |
| 4380 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
| 4381 } | |
| 4382 return base; | |
| 4383 } | |
| 4384 | |
| 4385 return base; | |
| 4386 } | |
| 4387 | |
| 4388 | |
| 4389 // Remap a block of memory. | |
| 6197 | 4390 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4391 char *addr, size_t bytes, bool read_only, |
| 4392 bool allow_exec) { | |
| 4393 // This OS does not allow existing memory maps to be remapped so we | |
| 4394 // have to unmap the memory before we remap it. | |
| 4395 if (!os::unmap_memory(addr, bytes)) { | |
| 4396 return NULL; | |
| 4397 } | |
| 4398 | |
| 4399 // There is a very small theoretical window between the unmap_memory() | |
| 4400 // call above and the map_memory() call below where a thread in native | |
| 4401 // code may be able to access an address that is no longer mapped. | |
| 4402 | |
| 6197 | 4403 return os::map_memory(fd, file_name, file_offset, addr, bytes, |
| 4404 read_only, allow_exec); | |
| 0 | 4405 } |
| 4406 | |
| 4407 | |
| 4408 // Unmap a block of memory. | |
| 4409 // Returns true=success, otherwise false. | |
| 4410 | |
| 6197 | 4411 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
| 0 | 4412 BOOL result = UnmapViewOfFile(addr); |
| 4413 if (result == 0) { | |
| 4414 if (PrintMiscellaneous && Verbose) { | |
| 4415 DWORD err = GetLastError(); | |
| 4416 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
| 4417 } | |
| 4418 return false; | |
| 4419 } | |
| 4420 return true; | |
| 4421 } | |
| 4422 | |
| 4423 void os::pause() { | |
| 4424 char filename[MAX_PATH]; | |
| 4425 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 4426 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 4427 } else { | |
| 4428 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 4429 } | |
| 4430 | |
| 4431 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 4432 if (fd != -1) { | |
| 4433 struct stat buf; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4434 ::close(fd); |
| 0 | 4435 while (::stat(filename, &buf) == 0) { |
| 4436 Sleep(100); | |
| 4437 } | |
| 4438 } else { | |
| 4439 jio_fprintf(stderr, | |
| 4440 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 4441 } | |
| 4442 } | |
| 4443 | |
| 4444 // An Event wraps a win32 "CreateEvent" kernel handle. | |
| 4445 // | |
| 4446 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
| 4447 // | |
| 4448 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
| 4449 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
| 4450 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
| 4451 // In addition, an unpark() operation might fetch the handle field, but the | |
| 4452 // event could recycle between the fetch and the SetEvent() operation. | |
| 4453 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
| 4454 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
| 4455 // on an stale but recycled handle would be harmless, but in practice this might | |
| 4456 // confuse other non-Sun code, so it's not a viable approach. | |
| 4457 // | |
| 4458 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
| 4459 // with the Event. The event handle is never closed. This could be construed | |
| 4460 // as handle leakage, but only up to the maximum # of threads that have been extant | |
| 4461 // at any one time. This shouldn't be an issue, as windows platforms typically | |
| 4462 // permit a process to have hundreds of thousands of open handles. | |
| 4463 // | |
| 4464 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
| 4465 // and release unused handles. | |
| 4466 // | |
| 4467 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
| 4468 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
| 4469 // | |
| 4470 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
| 4471 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
| 4472 // | |
| 4473 // We use (2). | |
| 4474 // | |
| 4475 // TODO-FIXME: | |
| 4476 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
| 4477 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
| 4478 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
| 4479 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
| 4480 // into a single win32 CreateEvent() handle. | |
| 4481 // | |
| 4482 // _Event transitions in park() | |
| 4483 // -1 => -1 : illegal | |
| 4484 // 1 => 0 : pass - return immediately | |
| 4485 // 0 => -1 : block | |
| 4486 // | |
| 4487 // _Event serves as a restricted-range semaphore : | |
| 4488 // -1 : thread is blocked | |
| 4489 // 0 : neutral - thread is running or ready | |
| 4490 // 1 : signaled - thread is running or ready | |
| 4491 // | |
| 4492 // Another possible encoding of _Event would be | |
| 4493 // with explicit "PARKED" and "SIGNALED" bits. | |
| 4494 | |
| 4495 int os::PlatformEvent::park (jlong Millis) { | |
| 4496 guarantee (_ParkHandle != NULL , "Invariant") ; | |
| 4497 guarantee (Millis > 0 , "Invariant") ; | |
| 4498 int v ; | |
| 4499 | |
| 4500 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
| 4501 // the initial park() operation. | |
| 4502 | |
| 4503 for (;;) { | |
| 4504 v = _Event ; | |
| 4505 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4506 } | |
| 4507 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4508 if (v != 0) return OS_OK ; | |
| 4509 | |
| 4510 // Do this the hard way by blocking ... | |
| 4511 // TODO: consider a brief spin here, gated on the success of recent | |
| 4512 // spin attempts by this thread. | |
| 4513 // | |
| 4514 // We decompose long timeouts into series of shorter timed waits. | |
| 4515 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
| 4516 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
| 4517 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
| 4518 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
| 4519 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
| 4520 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
| 4521 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
| 4522 // for the already waited time. This policy does not admit any new outcomes. | |
| 4523 // In the future, however, we might want to track the accumulated wait time and | |
| 4524 // adjust Millis accordingly if we encounter a spurious wakeup. | |
| 4525 | |
| 4526 const int MAXTIMEOUT = 0x10000000 ; | |
| 4527 DWORD rv = WAIT_TIMEOUT ; | |
| 4528 while (_Event < 0 && Millis > 0) { | |
| 4529 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
| 4530 if (Millis > MAXTIMEOUT) { | |
| 4531 prd = MAXTIMEOUT ; | |
| 4532 } | |
| 4533 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
| 4534 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
| 4535 if (rv == WAIT_TIMEOUT) { | |
| 4536 Millis -= prd ; | |
| 4537 } | |
| 4538 } | |
| 4539 v = _Event ; | |
| 4540 _Event = 0 ; | |
| 4541 OrderAccess::fence() ; | |
| 4542 // If we encounter a nearly simultanous timeout expiry and unpark() | |
| 4543 // we return OS_OK indicating we awoke via unpark(). | |
| 4544 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
| 4545 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
| 4546 } | |
| 4547 | |
| 4548 void os::PlatformEvent::park () { | |
| 4549 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4550 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 4551 // may call park(). | |
| 4552 int v ; | |
| 4553 for (;;) { | |
| 4554 v = _Event ; | |
| 4555 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4556 } | |
| 4557 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4558 if (v != 0) return ; | |
| 4559 | |
| 4560 // Do this the hard way by blocking ... | |
| 4561 // TODO: consider a brief spin here, gated on the success of recent | |
| 4562 // spin attempts by this thread. | |
| 4563 while (_Event < 0) { | |
| 4564 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
| 4565 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
| 4566 } | |
| 4567 | |
| 4568 // Usually we'll find _Event == 0 at this point, but as | |
| 4569 // an optional optimization we clear it, just in case can | |
| 4570 // multiple unpark() operations drove _Event up to 1. | |
| 4571 _Event = 0 ; | |
| 4572 OrderAccess::fence() ; | |
| 4573 guarantee (_Event >= 0, "invariant") ; | |
| 4574 } | |
| 4575 | |
| 4576 void os::PlatformEvent::unpark() { | |
| 4577 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4578 int v ; | |
| 4579 for (;;) { | |
| 4580 v = _Event ; // Increment _Event if it's < 1. | |
| 4581 if (v > 0) { | |
| 4582 // If it's already signaled just return. | |
| 4583 // The LD of _Event could have reordered or be satisfied | |
| 4584 // by a read-aside from this processor's write buffer. | |
| 4585 // To avoid problems execute a barrier and then | |
| 4586 // ratify the value. A degenerate CAS() would also work. | |
| 4587 // Viz., CAS (v+0, &_Event, v) == v). | |
| 4588 OrderAccess::fence() ; | |
| 4589 if (_Event == v) return ; | |
| 4590 continue ; | |
| 4591 } | |
| 4592 if (Atomic::cmpxchg (v+1, &_Event, v) == v) break ; | |
| 4593 } | |
| 4594 if (v < 0) { | |
| 4595 ::SetEvent (_ParkHandle) ; | |
| 4596 } | |
| 4597 } | |
| 4598 | |
| 4599 | |
| 4600 // JSR166 | |
| 4601 // ------------------------------------------------------- | |
| 4602 | |
| 4603 /* | |
| 4604 * The Windows implementation of Park is very straightforward: Basic | |
| 4605 * operations on Win32 Events turn out to have the right semantics to | |
| 4606 * use them directly. We opportunistically resuse the event inherited | |
| 4607 * from Monitor. | |
| 4608 */ | |
| 4609 | |
| 4610 | |
| 4611 void Parker::park(bool isAbsolute, jlong time) { | |
| 4612 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4613 // First, demultiplex/decode time arguments | |
| 4614 if (time < 0) { // don't wait | |
| 4615 return; | |
| 4616 } | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
4617 else if (time == 0 && !isAbsolute) { |
| 0 | 4618 time = INFINITE; |
| 4619 } | |
| 4620 else if (isAbsolute) { | |
| 4621 time -= os::javaTimeMillis(); // convert to relative time | |
| 4622 if (time <= 0) // already elapsed | |
| 4623 return; | |
| 4624 } | |
| 4625 else { // relative | |
| 4626 time /= 1000000; // Must coarsen from nanos to millis | |
| 4627 if (time == 0) // Wait for the minimal time unit if zero | |
| 4628 time = 1; | |
| 4629 } | |
| 4630 | |
| 4631 JavaThread* thread = (JavaThread*)(Thread::current()); | |
| 4632 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 4633 JavaThread *jt = (JavaThread *)thread; | |
| 4634 | |
| 4635 // Don't wait if interrupted or already triggered | |
| 4636 if (Thread::is_interrupted(thread, false) || | |
| 4637 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
| 4638 ResetEvent(_ParkEvent); | |
| 4639 return; | |
| 4640 } | |
| 4641 else { | |
| 4642 ThreadBlockInVM tbivm(jt); | |
| 4643 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 4644 jt->set_suspend_equivalent(); | |
| 4645 | |
| 4646 WaitForSingleObject(_ParkEvent, time); | |
| 4647 ResetEvent(_ParkEvent); | |
| 4648 | |
| 4649 // If externally suspended while waiting, re-suspend | |
| 4650 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 4651 jt->java_suspend_self(); | |
| 4652 } | |
| 4653 } | |
| 4654 } | |
| 4655 | |
| 4656 void Parker::unpark() { | |
| 4657 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4658 SetEvent(_ParkEvent); | |
| 4659 } | |
| 4660 | |
| 4661 // Run the specified command in a separate process. Return its exit value, | |
| 4662 // or -1 on failure (e.g. can't create a new process). | |
| 4663 int os::fork_and_exec(char* cmd) { | |
| 4664 STARTUPINFO si; | |
| 4665 PROCESS_INFORMATION pi; | |
| 4666 | |
| 4667 memset(&si, 0, sizeof(si)); | |
| 4668 si.cb = sizeof(si); | |
| 4669 memset(&pi, 0, sizeof(pi)); | |
| 4670 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
| 4671 cmd, // command line | |
| 4672 NULL, // process security attribute | |
| 4673 NULL, // thread security attribute | |
| 4674 TRUE, // inherits system handles | |
| 4675 0, // no creation flags | |
| 4676 NULL, // use parent's environment block | |
| 4677 NULL, // use parent's starting directory | |
| 4678 &si, // (in) startup information | |
| 4679 &pi); // (out) process information | |
| 4680 | |
| 4681 if (rslt) { | |
| 4682 // Wait until child process exits. | |
| 4683 WaitForSingleObject(pi.hProcess, INFINITE); | |
| 4684 | |
| 4685 DWORD exit_code; | |
| 4686 GetExitCodeProcess(pi.hProcess, &exit_code); | |
| 4687 | |
| 4688 // Close process and thread handles. | |
| 4689 CloseHandle(pi.hProcess); | |
| 4690 CloseHandle(pi.hThread); | |
| 4691 | |
| 4692 return (int)exit_code; | |
| 4693 } else { | |
| 4694 return -1; | |
| 4695 } | |
| 4696 } | |
| 4697 | |
| 4698 //-------------------------------------------------------------------------------------------------- | |
| 4699 // Non-product code | |
| 4700 | |
| 4701 static int mallocDebugIntervalCounter = 0; | |
| 4702 static int mallocDebugCounter = 0; | |
| 4703 bool os::check_heap(bool force) { | |
| 4704 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
| 4705 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
| 4706 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
| 4707 // wrong; at these points, eax contains the address of the offending block (I think). | |
| 4708 // To get to the exlicit error message(s) below, just continue twice. | |
| 4709 HANDLE heap = GetProcessHeap(); | |
| 4710 { HeapLock(heap); | |
| 4711 PROCESS_HEAP_ENTRY phe; | |
| 4712 phe.lpData = NULL; | |
| 4713 while (HeapWalk(heap, &phe) != 0) { | |
| 4714 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
| 4715 !HeapValidate(heap, 0, phe.lpData)) { | |
| 4716 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
| 4717 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
| 4718 fatal("corrupted C heap"); | |
| 4719 } | |
| 4720 } | |
|
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
4721 DWORD err = GetLastError(); |
| 0 | 4722 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
|
4723 fatal(err_msg("heap walk aborted with error %d", err)); |
| 0 | 4724 } |
| 4725 HeapUnlock(heap); | |
| 4726 } | |
| 4727 mallocDebugIntervalCounter = 0; | |
| 4728 } | |
| 4729 return true; | |
| 4730 } | |
| 4731 | |
| 4732 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4733 bool os::find(address addr, outputStream* st) { |
| 0 | 4734 // Nothing yet |
| 4735 return false; | |
| 4736 } | |
| 4737 | |
| 4738 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
| 4739 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
| 4740 | |
| 4741 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 4742 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
| 4743 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
| 4744 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 4745 | |
| 4746 if (os::is_memory_serialize_page(thread, addr)) | |
| 4747 return EXCEPTION_CONTINUE_EXECUTION; | |
| 4748 } | |
| 4749 | |
| 4750 return EXCEPTION_CONTINUE_SEARCH; | |
| 4751 } | |
| 4752 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4753 // We don't build a headless jre for Windows |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4754 bool os::is_headless_jre() { return false; } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4755 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4756 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4757 typedef CRITICAL_SECTION mutex_t; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4758 #define mutexInit(m) InitializeCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4759 #define mutexDestroy(m) DeleteCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4760 #define mutexLock(m) EnterCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4761 #define mutexUnlock(m) LeaveCriticalSection(m) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4762 |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4763 static bool sock_initialized = FALSE; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4764 static mutex_t sockFnTableMutex; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4765 |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4766 static void initSock() { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4767 WSADATA wsadata; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4768 |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4769 if (!os::WinSock2Dll::WinSock2Available()) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4770 jio_fprintf(stderr, "Could not load Winsock 2 (error: %d)\n", |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4771 ::GetLastError()); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4772 return; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4773 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4774 if (sock_initialized == TRUE) return; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4775 |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4776 ::mutexInit(&sockFnTableMutex); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4777 ::mutexLock(&sockFnTableMutex); |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4778 if (os::WinSock2Dll::WSAStartup(MAKEWORD(1,1), &wsadata) != 0) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4779 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
|
4780 } |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4781 sock_initialized = TRUE; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4782 ::mutexUnlock(&sockFnTableMutex); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4783 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4784 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4785 struct hostent* os::get_host_by_name(char* name) { |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4786 if (!sock_initialized) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4787 initSock(); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4788 } |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4789 if (!os::WinSock2Dll::WinSock2Available()) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4790 return NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4791 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4792 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4793 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4794 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4795 int os::socket_close(int fd) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4796 return ::closesocket(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4797 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4798 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4799 int os::socket_available(int fd, jint *pbytes) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4800 int ret = ::ioctlsocket(fd, FIONREAD, (u_long*)pbytes); |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4801 return (ret < 0) ? 0 : 1; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4802 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4803 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4804 int os::socket(int domain, int type, int protocol) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4805 return ::socket(domain, type, protocol); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4806 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4807 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4808 int os::listen(int fd, int count) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4809 return ::listen(fd, count); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4810 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4811 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4812 int os::connect(int fd, struct sockaddr* him, socklen_t len) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4813 return ::connect(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4814 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4815 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4816 int os::accept(int fd, struct sockaddr* him, socklen_t* len) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4817 return ::accept(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4818 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4819 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4820 int os::sendto(int fd, char* buf, size_t len, uint flags, |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4821 struct sockaddr* to, socklen_t tolen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4822 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4823 return ::sendto(fd, buf, (int)len, flags, to, tolen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4824 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4825 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4826 int os::recvfrom(int fd, char *buf, size_t nBytes, uint flags, |
|
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4827 sockaddr* from, socklen_t* fromlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4828 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4829 return ::recvfrom(fd, buf, (int)nBytes, flags, from, fromlen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4830 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4831 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4832 int os::recv(int fd, char* buf, size_t nBytes, uint flags) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4833 return ::recv(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4834 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4835 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4836 int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4837 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4838 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4839 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4840 int os::raw_send(int fd, char* buf, size_t nBytes, uint flags) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4841 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4842 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4843 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4844 int os::timeout(int fd, long timeout) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4845 fd_set tbl; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4846 struct timeval t; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4847 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4848 t.tv_sec = timeout / 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4849 t.tv_usec = (timeout % 1000) * 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4850 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4851 tbl.fd_count = 1; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4852 tbl.fd_array[0] = fd; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4853 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4854 return ::select(1, &tbl, 0, 0, &t); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4855 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4856 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4857 int os::get_host_name(char* name, int namelen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4858 return ::gethostname(name, namelen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4859 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4860 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4861 int os::socket_shutdown(int fd, int howto) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4862 return ::shutdown(fd, howto); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4863 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4864 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4865 int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4866 return ::bind(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4867 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4868 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4869 int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4870 return ::getsockname(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4871 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4872 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4873 int os::get_sock_opt(int fd, int level, int optname, |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4874 char* optval, socklen_t* optlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4875 return ::getsockopt(fd, level, optname, optval, optlen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4876 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4877 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4878 int os::set_sock_opt(int fd, int level, int optname, |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
4879 const char* optval, socklen_t optlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
4880 return ::setsockopt(fd, level, optname, optval, optlen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4881 } |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4882 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4883 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
4884 // Kernel32 API |
|
b1cbb0907b36
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4885 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
| 3885 | 4886 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
| 4887 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
| 4888 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
| 6197 | 4889 typedef USHORT (WINAPI* RtlCaptureStackBackTrace_Fn)(ULONG, ULONG, PVOID*, PULONG); |
| 3885 | 4890 |
|
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4891 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
| 3885 | 4892 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
| 4893 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
| 4894 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
| 6197 | 4895 RtlCaptureStackBackTrace_Fn os::Kernel32Dll::_RtlCaptureStackBackTrace = NULL; |
| 4896 | |
| 4897 | |
|
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4898 BOOL os::Kernel32Dll::initialized = FALSE; |
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4899 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
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4900 assert(initialized && _GetLargePageMinimum != NULL, |
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4901 "GetLargePageMinimumAvailable() not yet called"); |
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4902 return _GetLargePageMinimum(); |
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4903 } |
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4904 |
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4905 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
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4906 if (!initialized) { |
|
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4907 initialize(); |
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4908 } |
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4909 return _GetLargePageMinimum != NULL; |
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4910 } |
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4911 |
| 3885 | 4912 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
| 4913 if (!initialized) { | |
| 4914 initialize(); | |
| 4915 } | |
| 4916 return _VirtualAllocExNuma != NULL; | |
| 4917 } | |
| 4918 | |
| 4919 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
| 4920 assert(initialized && _VirtualAllocExNuma != NULL, | |
| 4921 "NUMACallsAvailable() not yet called"); | |
| 4922 | |
| 4923 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
| 4924 } | |
| 4925 | |
| 4926 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
| 4927 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
| 4928 "NUMACallsAvailable() not yet called"); | |
| 4929 | |
| 4930 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
| 4931 } | |
| 4932 | |
| 4933 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
| 4934 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
| 4935 "NUMACallsAvailable() not yet called"); | |
| 4936 | |
| 4937 return _GetNumaNodeProcessorMask(node, proc_mask); | |
| 4938 } | |
| 4939 | |
| 6197 | 4940 USHORT os::Kernel32Dll::RtlCaptureStackBackTrace(ULONG FrameToSkip, |
| 4941 ULONG FrameToCapture, PVOID* BackTrace, PULONG BackTraceHash) { | |
| 4942 if (!initialized) { | |
| 4943 initialize(); | |
| 4944 } | |
| 4945 | |
| 4946 if (_RtlCaptureStackBackTrace != NULL) { | |
| 4947 return _RtlCaptureStackBackTrace(FrameToSkip, FrameToCapture, | |
| 4948 BackTrace, BackTraceHash); | |
| 4949 } else { | |
| 4950 return 0; | |
| 4951 } | |
| 4952 } | |
| 3885 | 4953 |
| 4954 void os::Kernel32Dll::initializeCommon() { | |
| 4955 if (!initialized) { | |
| 4956 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
| 4957 assert(handle != NULL, "Just check"); | |
| 4958 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
| 4959 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
| 4960 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
| 4961 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
| 6197 | 4962 _RtlCaptureStackBackTrace = (RtlCaptureStackBackTrace_Fn)::GetProcAddress(handle, "RtlCaptureStackBackTrace"); |
| 3885 | 4963 initialized = TRUE; |
| 4964 } | |
| 4965 } | |
| 4966 | |
| 4967 | |
|
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4968 |
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4969 #ifndef JDK6_OR_EARLIER |
|
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4970 |
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4971 void os::Kernel32Dll::initialize() { |
| 3885 | 4972 initializeCommon(); |
|
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4973 } |
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4974 |
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4975 |
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4976 // Kernel32 API |
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4977 inline BOOL os::Kernel32Dll::SwitchToThread() { |
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4978 return ::SwitchToThread(); |
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4979 } |
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4980 |
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4981 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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4982 return true; |
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|
4983 } |
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4984 |
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|
4985 // Help tools |
|
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4986 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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4987 return true; |
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4988 } |
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|
4989 |
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4990 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
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4991 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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4992 } |
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|
4993 |
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4994 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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4995 return ::Module32First(hSnapshot, lpme); |
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4996 } |
|
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|
4997 |
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|
4998 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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4999 return ::Module32Next(hSnapshot, lpme); |
|
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|
5000 } |
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|
5001 |
|
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|
5002 |
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|
5003 inline BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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5004 return true; |
|
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|
5005 } |
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|
5006 |
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|
5007 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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5008 ::GetNativeSystemInfo(lpSystemInfo); |
|
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5009 } |
|
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|
5010 |
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|
5011 // PSAPI API |
|
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5012 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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5013 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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|
5014 } |
|
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|
5015 |
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|
5016 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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5017 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5018 } |
|
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|
5019 |
|
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|
5020 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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5021 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5022 } |
|
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|
5023 |
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|
5024 inline BOOL os::PSApiDll::PSApiAvailable() { |
|
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5025 return true; |
|
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|
5026 } |
|
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|
5027 |
|
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|
5028 |
|
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|
5029 // WinSock2 API |
|
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5030 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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5031 return ::WSAStartup(wVersionRequested, lpWSAData); |
|
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5032 } |
|
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5033 |
|
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5034 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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5035 return ::gethostbyname(name); |
|
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|
5036 } |
|
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|
5037 |
|
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|
5038 inline BOOL os::WinSock2Dll::WinSock2Available() { |
|
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|
5039 return true; |
|
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|
5040 } |
|
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|
5041 |
|
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|
5042 // Advapi API |
|
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5043 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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|
5044 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
|
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5045 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
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5046 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
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5047 BufferLength, PreviousState, ReturnLength); |
|
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5048 } |
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5049 |
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5050 inline BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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5051 PHANDLE TokenHandle) { |
|
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5052 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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5053 } |
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5054 |
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5055 inline BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
|
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5056 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
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5057 } |
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5058 |
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5059 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
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5060 return true; |
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5061 } |
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5062 |
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5063 #else |
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5064 // Kernel32 API |
|
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5065 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
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5066 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
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5067 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
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5068 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
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5069 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
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5070 |
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5071 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
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5072 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
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5073 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
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5074 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
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5075 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
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5076 |
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|
5077 void os::Kernel32Dll::initialize() { |
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5078 if (!initialized) { |
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5079 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
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5080 assert(handle != NULL, "Just check"); |
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5081 |
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5082 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
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5083 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
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5084 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
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5085 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
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5086 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
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5087 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
| 3885 | 5088 initializeCommon(); // resolve the functions that always need resolving |
|
3833
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|
5089 |
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|
5090 initialized = TRUE; |
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|
5091 } |
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|
5092 } |
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|
5093 |
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|
5094 BOOL os::Kernel32Dll::SwitchToThread() { |
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|
5095 assert(initialized && _SwitchToThread != NULL, |
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|
5096 "SwitchToThreadAvailable() not yet called"); |
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|
5097 return _SwitchToThread(); |
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|
5098 } |
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|
5099 |
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|
5100 |
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|
5101 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
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|
5102 if (!initialized) { |
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|
5103 initialize(); |
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|
5104 } |
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|
5105 return _SwitchToThread != NULL; |
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|
5106 } |
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|
5107 |
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|
5108 // Help tools |
|
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|
5109 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
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|
5110 if (!initialized) { |
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|
5111 initialize(); |
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|
5112 } |
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|
5113 return _CreateToolhelp32Snapshot != NULL && |
|
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|
5114 _Module32First != NULL && |
|
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|
5115 _Module32Next != NULL; |
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|
5116 } |
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|
5117 |
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|
5118 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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|
5119 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
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|
5120 "HelpToolsAvailable() not yet called"); |
|
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|
5121 |
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|
5122 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
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|
5123 } |
|
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|
5124 |
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|
5125 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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5126 assert(initialized && _Module32First != NULL, |
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|
5127 "HelpToolsAvailable() not yet called"); |
|
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|
5128 |
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|
5129 return _Module32First(hSnapshot, lpme); |
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|
5130 } |
|
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|
5131 |
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|
5132 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
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|
5133 assert(initialized && _Module32Next != NULL, |
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|
5134 "HelpToolsAvailable() not yet called"); |
|
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|
5135 |
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|
5136 return _Module32Next(hSnapshot, lpme); |
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|
5137 } |
|
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|
5138 |
|
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|
5139 |
|
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|
5140 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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5141 if (!initialized) { |
|
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|
5142 initialize(); |
|
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|
5143 } |
|
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5144 return _GetNativeSystemInfo != NULL; |
|
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5145 } |
|
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|
5146 |
|
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5147 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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5148 assert(initialized && _GetNativeSystemInfo != NULL, |
|
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|
5149 "GetNativeSystemInfoAvailable() not yet called"); |
|
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5150 |
|
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5151 _GetNativeSystemInfo(lpSystemInfo); |
|
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5152 } |
|
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5153 |
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|
5154 // PSAPI API |
|
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|
5155 |
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|
5156 |
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|
5157 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
|
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5158 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
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5159 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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|
5160 |
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|
5161 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
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5162 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
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5163 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
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5164 BOOL os::PSApiDll::initialized = FALSE; |
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|
5165 |
|
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|
5166 void os::PSApiDll::initialize() { |
|
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5167 if (!initialized) { |
|
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|
5168 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
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|
5169 if (handle != NULL) { |
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5170 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
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5171 "EnumProcessModules"); |
|
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|
5172 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
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|
5173 "GetModuleFileNameExA"); |
|
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|
5174 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
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|
5175 "GetModuleInformation"); |
|
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|
5176 } |
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|
5177 initialized = TRUE; |
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|
5178 } |
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|
5179 } |
|
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|
5180 |
|
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|
5181 |
|
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|
5182 |
|
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|
5183 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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|
5184 assert(initialized && _EnumProcessModules != NULL, |
|
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|
5185 "PSApiAvailable() not yet called"); |
|
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5186 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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|
5187 } |
|
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|
5188 |
|
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|
5189 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5190 assert(initialized && _GetModuleFileNameEx != NULL, |
|
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|
5191 "PSApiAvailable() not yet called"); |
|
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|
5192 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5193 } |
|
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|
5194 |
|
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|
5195 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5196 assert(initialized && _GetModuleInformation != NULL, |
|
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|
5197 "PSApiAvailable() not yet called"); |
|
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|
5198 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5199 } |
|
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|
5200 |
|
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|
5201 BOOL os::PSApiDll::PSApiAvailable() { |
|
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|
5202 if (!initialized) { |
|
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|
5203 initialize(); |
|
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|
5204 } |
|
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|
5205 return _EnumProcessModules != NULL && |
|
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|
5206 _GetModuleFileNameEx != NULL && |
|
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|
5207 _GetModuleInformation != NULL; |
|
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|
5208 } |
|
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|
5209 |
|
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|
5210 |
|
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|
5211 // WinSock2 API |
|
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|
5212 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
|
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|
5213 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
|
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|
5214 |
|
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|
5215 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
|
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|
5216 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
|
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|
5217 BOOL os::WinSock2Dll::initialized = FALSE; |
|
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|
5218 |
|
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|
5219 void os::WinSock2Dll::initialize() { |
|
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|
5220 if (!initialized) { |
|
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|
5221 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
|
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|
5222 if (handle != NULL) { |
|
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|
5223 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
|
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|
5224 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
|
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|
5225 } |
|
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|
5226 initialized = TRUE; |
|
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|
5227 } |
|
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|
5228 } |
|
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|
5229 |
|
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|
5230 |
|
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|
5231 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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|
5232 assert(initialized && _WSAStartup != NULL, |
|
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|
5233 "WinSock2Available() not yet called"); |
|
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|
5234 return _WSAStartup(wVersionRequested, lpWSAData); |
|
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|
5235 } |
|
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|
5236 |
|
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|
5237 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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|
5238 assert(initialized && _gethostbyname != NULL, |
|
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|
5239 "WinSock2Available() not yet called"); |
|
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|
5240 return _gethostbyname(name); |
|
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|
5241 } |
|
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|
5242 |
|
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|
5243 BOOL os::WinSock2Dll::WinSock2Available() { |
|
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|
5244 if (!initialized) { |
|
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|
5245 initialize(); |
|
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|
5246 } |
|
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|
5247 return _WSAStartup != NULL && |
|
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|
5248 _gethostbyname != NULL; |
|
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|
5249 } |
|
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|
5250 |
|
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|
5251 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
|
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|
5252 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
|
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|
5253 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
|
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|
5254 |
|
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|
5255 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
|
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|
5256 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
|
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|
5257 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
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5258 BOOL os::Advapi32Dll::initialized = FALSE; |
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5259 |
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5260 void os::Advapi32Dll::initialize() { |
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5261 if (!initialized) { |
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5262 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
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5263 if (handle != NULL) { |
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5264 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
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5265 "AdjustTokenPrivileges"); |
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5266 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
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5267 "OpenProcessToken"); |
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5268 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
|
3834
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5269 "LookupPrivilegeValueA"); |
|
3833
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5270 } |
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5271 initialized = TRUE; |
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5272 } |
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5273 } |
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5274 |
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5275 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
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5276 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
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5277 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
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5278 assert(initialized && _AdjustTokenPrivileges != NULL, |
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5279 "AdvapiAvailable() not yet called"); |
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5280 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
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5281 BufferLength, PreviousState, ReturnLength); |
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5282 } |
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5283 |
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5284 BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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5285 PHANDLE TokenHandle) { |
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5286 assert(initialized && _OpenProcessToken != NULL, |
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5287 "AdvapiAvailable() not yet called"); |
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5288 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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5289 } |
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5290 |
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5291 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
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5292 assert(initialized && _LookupPrivilegeValue != NULL, |
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5293 "AdvapiAvailable() not yet called"); |
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5294 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
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5295 } |
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5296 |
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5297 BOOL os::Advapi32Dll::AdvapiAvailable() { |
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5298 if (!initialized) { |
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5299 initialize(); |
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5300 } |
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5301 return _AdjustTokenPrivileges != NULL && |
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5302 _OpenProcessToken != NULL && |
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5303 _LookupPrivilegeValue != NULL; |
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5304 } |
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5305 |
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5306 #endif |