Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.cpp @ 20804:7848fc12602b
Merge with jdk8u40-b25
| author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
|---|---|
| date | Tue, 07 Apr 2015 14:58:49 +0200 |
| parents | 52b4284cb496 09259e52a610 |
| children | be896a1983c0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 17567 | 2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 6916 | 25 // Must be at least Windows 2000 or XP to use IsDebuggerPresent |
| 0 | 26 #define _WIN32_WINNT 0x500 |
| 27 | |
| 1972 | 28 // no precompiled headers |
| 29 #include "classfile/classLoader.hpp" | |
| 30 #include "classfile/systemDictionary.hpp" | |
| 31 #include "classfile/vmSymbols.hpp" | |
| 32 #include "code/icBuffer.hpp" | |
| 33 #include "code/vtableStubs.hpp" | |
| 34 #include "compiler/compileBroker.hpp" | |
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35 #include "compiler/disassembler.hpp" |
| 1972 | 36 #include "interpreter/interpreter.hpp" |
| 37 #include "jvm_windows.h" | |
| 38 #include "memory/allocation.inline.hpp" | |
| 39 #include "memory/filemap.hpp" | |
| 40 #include "mutex_windows.inline.hpp" | |
| 41 #include "oops/oop.inline.hpp" | |
| 42 #include "os_share_windows.hpp" | |
| 43 #include "prims/jniFastGetField.hpp" | |
| 44 #include "prims/jvm.h" | |
| 45 #include "prims/jvm_misc.hpp" | |
| 46 #include "runtime/arguments.hpp" | |
| 47 #include "runtime/extendedPC.hpp" | |
| 48 #include "runtime/globals.hpp" | |
| 49 #include "runtime/interfaceSupport.hpp" | |
| 50 #include "runtime/java.hpp" | |
| 51 #include "runtime/javaCalls.hpp" | |
| 52 #include "runtime/mutexLocker.hpp" | |
| 53 #include "runtime/objectMonitor.hpp" | |
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54 #include "runtime/orderAccess.inline.hpp" |
| 1972 | 55 #include "runtime/osThread.hpp" |
| 56 #include "runtime/perfMemory.hpp" | |
| 57 #include "runtime/sharedRuntime.hpp" | |
| 58 #include "runtime/statSampler.hpp" | |
| 59 #include "runtime/stubRoutines.hpp" | |
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60 #include "runtime/thread.inline.hpp" |
| 1972 | 61 #include "runtime/threadCritical.hpp" |
| 62 #include "runtime/timer.hpp" | |
| 63 #include "services/attachListener.hpp" | |
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64 #include "services/memTracker.hpp" |
| 1972 | 65 #include "services/runtimeService.hpp" |
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66 #include "utilities/decoder.hpp" |
| 1972 | 67 #include "utilities/defaultStream.hpp" |
| 68 #include "utilities/events.hpp" | |
| 69 #include "utilities/growableArray.hpp" | |
| 70 #include "utilities/vmError.hpp" | |
| 0 | 71 |
| 72 #ifdef _DEBUG | |
| 73 #include <crtdbg.h> | |
| 74 #endif | |
| 75 | |
| 76 | |
| 77 #include <windows.h> | |
| 78 #include <sys/types.h> | |
| 79 #include <sys/stat.h> | |
| 80 #include <sys/timeb.h> | |
| 81 #include <objidl.h> | |
| 82 #include <shlobj.h> | |
| 83 | |
| 84 #include <malloc.h> | |
| 85 #include <signal.h> | |
| 86 #include <direct.h> | |
| 87 #include <errno.h> | |
| 88 #include <fcntl.h> | |
| 89 #include <io.h> | |
| 90 #include <process.h> // For _beginthreadex(), _endthreadex() | |
| 91 #include <imagehlp.h> // For os::dll_address_to_function_name | |
| 92 /* for enumerating dll libraries */ | |
| 93 #include <vdmdbg.h> | |
| 94 | |
| 95 // for timer info max values which include all bits | |
| 96 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
| 97 | |
| 98 // For DLL loading/load error detection | |
| 99 // Values of PE COFF | |
| 100 #define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c | |
| 101 #define IMAGE_FILE_SIGNATURE_LENGTH 4 | |
| 102 | |
| 103 static HANDLE main_process; | |
| 104 static HANDLE main_thread; | |
| 105 static int main_thread_id; | |
| 106 | |
| 107 static FILETIME process_creation_time; | |
| 108 static FILETIME process_exit_time; | |
| 109 static FILETIME process_user_time; | |
| 110 static FILETIME process_kernel_time; | |
| 111 | |
| 112 #ifdef _M_IA64 | |
| 113 #define __CPU__ ia64 | |
| 114 #elif _M_AMD64 | |
| 115 #define __CPU__ amd64 | |
| 116 #else | |
| 117 #define __CPU__ i486 | |
| 118 #endif | |
| 119 | |
| 120 // save DLL module handle, used by GetModuleFileName | |
| 121 | |
| 122 HINSTANCE vm_lib_handle; | |
| 123 | |
| 124 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
| 125 switch (reason) { | |
| 126 case DLL_PROCESS_ATTACH: | |
| 127 vm_lib_handle = hinst; | |
| 128 if(ForceTimeHighResolution) | |
| 129 timeBeginPeriod(1L); | |
| 130 break; | |
| 131 case DLL_PROCESS_DETACH: | |
| 132 if(ForceTimeHighResolution) | |
| 133 timeEndPeriod(1L); | |
| 20360 | 134 |
| 0 | 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 | |
| 20360 | 157 bool os::unsetenv(const char* name) { |
| 158 assert(name != NULL, "Null pointer"); | |
| 159 return (SetEnvironmentVariable(name, NULL) == TRUE); | |
| 160 } | |
| 0 | 161 |
| 162 // No setuid programs under Windows. | |
| 163 bool os::have_special_privileges() { | |
| 164 return false; | |
| 165 } | |
| 166 | |
| 167 | |
| 168 // This method is a periodic task to check for misbehaving JNI applications | |
| 169 // under CheckJNI, we can add any periodic checks here. | |
| 170 // For Windows at the moment does nothing | |
| 171 void os::run_periodic_checks() { | |
| 172 return; | |
| 173 } | |
| 174 | |
| 175 #ifndef _WIN64 | |
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176 // previous UnhandledExceptionFilter, if there is one |
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177 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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178 |
| 0 | 179 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
| 180 #endif | |
| 181 void os::init_system_properties_values() { | |
| 182 /* sysclasspath, java_home, dll_dir */ | |
| 183 { | |
| 184 char *home_path; | |
| 185 char *dll_path; | |
| 186 char *pslash; | |
| 187 char *bin = "\\bin"; | |
| 188 char home_dir[MAX_PATH]; | |
| 189 | |
| 190 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
| 191 os::jvm_path(home_dir, sizeof(home_dir)); | |
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192 // Found the full path to jvm.dll. |
| 0 | 193 // Now cut the path to <java_home>/jre if we can. |
| 194 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
| 195 pslash = strrchr(home_dir, '\\'); | |
| 196 if (pslash != NULL) { | |
| 197 *pslash = '\0'; /* get rid of \{client|server} */ | |
| 198 pslash = strrchr(home_dir, '\\'); | |
| 199 if (pslash != NULL) | |
| 200 *pslash = '\0'; /* get rid of \bin */ | |
| 201 } | |
| 202 } | |
| 203 | |
| 6197 | 204 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1, mtInternal); |
| 0 | 205 if (home_path == NULL) |
| 206 return; | |
| 207 strcpy(home_path, home_dir); | |
| 208 Arguments::set_java_home(home_path); | |
| 209 | |
| 6197 | 210 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1, mtInternal); |
| 0 | 211 if (dll_path == NULL) |
| 212 return; | |
| 213 strcpy(dll_path, home_dir); | |
| 214 strcat(dll_path, bin); | |
| 215 Arguments::set_dll_dir(dll_path); | |
| 216 | |
| 217 if (!set_boot_path('\\', ';')) | |
| 218 return; | |
| 219 } | |
| 220 | |
| 221 /* library_path */ | |
| 222 #define EXT_DIR "\\lib\\ext" | |
| 223 #define BIN_DIR "\\bin" | |
| 224 #define PACKAGE_DIR "\\Sun\\Java" | |
| 225 { | |
| 226 /* Win32 library search order (See the documentation for LoadLibrary): | |
| 227 * | |
| 228 * 1. The directory from which application is loaded. | |
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229 * 2. The system wide Java Extensions directory (Java only) |
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230 * 3. System directory (GetSystemDirectory) |
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231 * 4. Windows directory (GetWindowsDirectory) |
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232 * 5. The PATH environment variable |
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233 * 6. The current directory |
| 0 | 234 */ |
| 235 | |
| 236 char *library_path; | |
| 237 char tmp[MAX_PATH]; | |
| 238 char *path_str = ::getenv("PATH"); | |
| 239 | |
| 240 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
| 6197 | 241 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10, mtInternal); |
| 0 | 242 |
| 243 library_path[0] = '\0'; | |
| 244 | |
| 245 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
| 246 *(strrchr(tmp, '\\')) = '\0'; | |
| 247 strcat(library_path, tmp); | |
| 248 | |
| 249 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 250 strcat(library_path, ";"); | |
| 251 strcat(library_path, tmp); | |
| 252 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
| 253 | |
| 254 GetSystemDirectory(tmp, sizeof(tmp)); | |
| 255 strcat(library_path, ";"); | |
| 256 strcat(library_path, tmp); | |
| 257 | |
| 258 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 259 strcat(library_path, ";"); | |
| 260 strcat(library_path, tmp); | |
| 261 | |
| 262 if (path_str) { | |
| 263 strcat(library_path, ";"); | |
| 264 strcat(library_path, path_str); | |
| 265 } | |
| 266 | |
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267 strcat(library_path, ";."); |
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268 |
| 0 | 269 Arguments::set_library_path(library_path); |
| 6197 | 270 FREE_C_HEAP_ARRAY(char, library_path, mtInternal); |
| 0 | 271 } |
| 272 | |
| 273 /* Default extensions directory */ | |
| 274 { | |
| 275 char path[MAX_PATH]; | |
| 276 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
| 277 GetWindowsDirectory(path, MAX_PATH); | |
| 278 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
| 279 path, PACKAGE_DIR, EXT_DIR); | |
| 280 Arguments::set_ext_dirs(buf); | |
| 281 } | |
| 282 #undef EXT_DIR | |
| 283 #undef BIN_DIR | |
| 284 #undef PACKAGE_DIR | |
| 285 | |
| 286 /* Default endorsed standards directory. */ | |
| 287 { | |
| 288 #define ENDORSED_DIR "\\lib\\endorsed" | |
| 289 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
| 6197 | 290 char * buf = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 291 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); |
| 292 Arguments::set_endorsed_dirs(buf); | |
| 293 #undef ENDORSED_DIR | |
| 294 } | |
| 295 | |
| 296 #ifndef _WIN64 | |
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297 // set our UnhandledExceptionFilter and save any previous one |
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298 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
| 0 | 299 #endif |
| 300 | |
| 301 // Done | |
| 302 return; | |
| 303 } | |
| 304 | |
| 305 void os::breakpoint() { | |
| 306 DebugBreak(); | |
| 307 } | |
| 308 | |
| 309 // Invoked from the BREAKPOINT Macro | |
| 310 extern "C" void breakpoint() { | |
| 311 os::breakpoint(); | |
| 312 } | |
| 313 | |
| 6197 | 314 /* |
| 315 * RtlCaptureStackBackTrace Windows API may not exist prior to Windows XP. | |
| 316 * So far, this method is only used by Native Memory Tracking, which is | |
| 317 * only supported on Windows XP or later. | |
| 318 */ | |
| 20360 | 319 |
| 320 int os::get_native_stack(address* stack, int frames, int toSkip) { | |
| 6197 | 321 #ifdef _NMT_NOINLINE_ |
| 20360 | 322 toSkip ++; |
| 6197 | 323 #endif |
| 20360 | 324 int captured = Kernel32Dll::RtlCaptureStackBackTrace(toSkip + 1, frames, |
| 325 (PVOID*)stack, NULL); | |
| 326 for (int index = captured; index < frames; index ++) { | |
| 327 stack[index] = NULL; | |
| 328 } | |
| 329 return captured; | |
| 6197 | 330 } |
| 331 | |
| 332 | |
| 0 | 333 // os::current_stack_base() |
| 334 // | |
| 335 // Returns the base of the stack, which is the stack's | |
| 336 // starting address. This function must be called | |
| 337 // while running on the stack of the thread being queried. | |
| 338 | |
| 339 address os::current_stack_base() { | |
| 340 MEMORY_BASIC_INFORMATION minfo; | |
| 341 address stack_bottom; | |
| 342 size_t stack_size; | |
| 343 | |
| 344 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 345 stack_bottom = (address)minfo.AllocationBase; | |
| 346 stack_size = minfo.RegionSize; | |
| 347 | |
| 348 // Add up the sizes of all the regions with the same | |
| 349 // AllocationBase. | |
| 350 while( 1 ) | |
| 351 { | |
| 352 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
| 353 if ( stack_bottom == (address)minfo.AllocationBase ) | |
| 354 stack_size += minfo.RegionSize; | |
| 355 else | |
| 356 break; | |
| 357 } | |
| 358 | |
| 359 #ifdef _M_IA64 | |
| 360 // IA64 has memory and register stacks | |
| 7994 | 361 // |
| 362 // This is the stack layout you get on NT/IA64 if you specify 1MB stack limit | |
| 363 // at thread creation (1MB backing store growing upwards, 1MB memory stack | |
| 364 // growing downwards, 2MB summed up) | |
| 365 // | |
| 366 // ... | |
| 367 // ------- top of stack (high address) ----- | |
| 368 // | | |
| 369 // | 1MB | |
| 370 // | Backing Store (Register Stack) | |
| 371 // | | |
| 372 // | / \ | |
| 373 // | | | |
| 374 // | | | |
| 375 // | | | |
| 376 // ------------------------ stack base ----- | |
| 377 // | 1MB | |
| 378 // | Memory Stack | |
| 379 // | | |
| 380 // | | | |
| 381 // | | | |
| 382 // | | | |
| 383 // | \ / | |
| 384 // | | |
| 385 // ----- bottom of stack (low address) ----- | |
| 386 // ... | |
| 387 | |
| 0 | 388 stack_size = stack_size / 2; |
| 389 #endif | |
| 390 return stack_bottom + stack_size; | |
| 391 } | |
| 392 | |
| 393 size_t os::current_stack_size() { | |
| 394 size_t sz; | |
| 395 MEMORY_BASIC_INFORMATION minfo; | |
| 396 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 397 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
| 398 return sz; | |
| 399 } | |
| 400 | |
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401 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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402 const struct tm* time_struct_ptr = localtime(clock); |
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403 if (time_struct_ptr != NULL) { |
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404 *res = *time_struct_ptr; |
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405 return res; |
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406 } |
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407 return NULL; |
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408 } |
| 0 | 409 |
| 410 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
| 411 | |
| 412 // Thread start routine for all new Java threads | |
| 413 static unsigned __stdcall java_start(Thread* thread) { | |
| 414 // Try to randomize the cache line index of hot stack frames. | |
| 415 // This helps when threads of the same stack traces evict each other's | |
| 416 // cache lines. The threads can be either from the same JVM instance, or | |
| 417 // from different JVM instances. The benefit is especially true for | |
| 418 // processors with hyperthreading technology. | |
| 419 static int counter = 0; | |
| 420 int pid = os::current_process_id(); | |
| 421 _alloca(((pid ^ counter++) & 7) * 128); | |
| 422 | |
| 423 OSThread* osthr = thread->osthread(); | |
| 424 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 425 | |
| 426 if (UseNUMA) { | |
| 427 int lgrp_id = os::numa_get_group_id(); | |
| 428 if (lgrp_id != -1) { | |
| 429 thread->set_lgrp_id(lgrp_id); | |
| 430 } | |
| 431 } | |
| 432 | |
| 433 | |
| 6916 | 434 // Install a win32 structured exception handler around every thread created |
| 435 // by VM, so VM can genrate error dump when an exception occurred in non- | |
| 436 // Java thread (e.g. VM thread). | |
| 437 __try { | |
| 438 thread->run(); | |
| 439 } __except(topLevelExceptionFilter( | |
| 440 (_EXCEPTION_POINTERS*)_exception_info())) { | |
| 441 // Nothing to do. | |
| 0 | 442 } |
| 443 | |
| 444 // One less thread is executing | |
| 445 // When the VMThread gets here, the main thread may have already exited | |
| 446 // which frees the CodeHeap containing the Atomic::add code | |
| 447 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 448 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 449 } | |
| 450 | |
| 451 return 0; | |
| 452 } | |
| 453 | |
| 454 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
| 455 // Allocate the OSThread object | |
| 456 OSThread* osthread = new OSThread(NULL, NULL); | |
| 457 if (osthread == NULL) return NULL; | |
| 458 | |
| 459 // Initialize support for Java interrupts | |
| 460 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 461 if (interrupt_event == NULL) { | |
| 462 delete osthread; | |
| 463 return NULL; | |
| 464 } | |
| 465 osthread->set_interrupt_event(interrupt_event); | |
| 466 | |
| 467 // Store info on the Win32 thread into the OSThread | |
| 468 osthread->set_thread_handle(thread_handle); | |
| 469 osthread->set_thread_id(thread_id); | |
| 470 | |
| 471 if (UseNUMA) { | |
| 472 int lgrp_id = os::numa_get_group_id(); | |
| 473 if (lgrp_id != -1) { | |
| 474 thread->set_lgrp_id(lgrp_id); | |
| 475 } | |
| 476 } | |
| 477 | |
| 478 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 479 osthread->set_state(INITIALIZED); | |
| 480 | |
| 481 return osthread; | |
| 482 } | |
| 483 | |
| 484 | |
| 485 bool os::create_attached_thread(JavaThread* thread) { | |
| 486 #ifdef ASSERT | |
| 487 thread->verify_not_published(); | |
| 488 #endif | |
| 489 HANDLE thread_h; | |
| 490 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
| 491 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
| 492 fatal("DuplicateHandle failed\n"); | |
| 493 } | |
| 494 OSThread* osthread = create_os_thread(thread, thread_h, | |
| 495 (int)current_thread_id()); | |
| 496 if (osthread == NULL) { | |
| 497 return false; | |
| 498 } | |
| 499 | |
| 500 // Initial thread state is RUNNABLE | |
| 501 osthread->set_state(RUNNABLE); | |
| 502 | |
| 503 thread->set_osthread(osthread); | |
| 504 return true; | |
| 505 } | |
| 506 | |
| 507 bool os::create_main_thread(JavaThread* thread) { | |
| 508 #ifdef ASSERT | |
| 509 thread->verify_not_published(); | |
| 510 #endif | |
| 511 if (_starting_thread == NULL) { | |
| 512 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
| 513 if (_starting_thread == NULL) { | |
| 514 return false; | |
| 515 } | |
| 516 } | |
| 517 | |
| 518 // The primordial thread is runnable from the start) | |
| 519 _starting_thread->set_state(RUNNABLE); | |
| 520 | |
| 521 thread->set_osthread(_starting_thread); | |
| 522 return true; | |
| 523 } | |
| 524 | |
| 525 // Allocate and initialize a new OSThread | |
| 526 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 527 unsigned thread_id; | |
| 528 | |
| 529 // Allocate the OSThread object | |
| 530 OSThread* osthread = new OSThread(NULL, NULL); | |
| 531 if (osthread == NULL) { | |
| 532 return false; | |
| 533 } | |
| 534 | |
| 535 // Initialize support for Java interrupts | |
| 536 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 537 if (interrupt_event == NULL) { | |
| 538 delete osthread; | |
| 539 return NULL; | |
| 540 } | |
| 541 osthread->set_interrupt_event(interrupt_event); | |
| 542 osthread->set_interrupted(false); | |
| 543 | |
| 544 thread->set_osthread(osthread); | |
| 545 | |
| 546 if (stack_size == 0) { | |
| 547 switch (thr_type) { | |
| 548 case os::java_thread: | |
| 549 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 550 if (JavaThread::stack_size_at_create() > 0) | |
| 551 stack_size = JavaThread::stack_size_at_create(); | |
| 552 break; | |
| 553 case os::compiler_thread: | |
| 554 if (CompilerThreadStackSize > 0) { | |
| 555 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 556 break; | |
| 557 } // else fall through: | |
| 558 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 559 case os::vm_thread: | |
| 560 case os::pgc_thread: | |
| 561 case os::cgc_thread: | |
| 562 case os::watcher_thread: | |
| 563 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 564 break; | |
| 565 } | |
| 566 } | |
| 567 | |
| 568 // Create the Win32 thread | |
| 569 // | |
| 570 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
| 571 // does not specify stack size. Instead, it specifies the size of | |
| 572 // initially committed space. The stack size is determined by | |
| 573 // PE header in the executable. If the committed "stack_size" is larger | |
| 574 // than default value in the PE header, the stack is rounded up to the | |
| 575 // nearest multiple of 1MB. For example if the launcher has default | |
| 576 // stack size of 320k, specifying any size less than 320k does not | |
| 577 // affect the actual stack size at all, it only affects the initial | |
| 578 // commitment. On the other hand, specifying 'stack_size' larger than | |
| 579 // default value may cause significant increase in memory usage, because | |
| 580 // not only the stack space will be rounded up to MB, but also the | |
| 581 // entire space is committed upfront. | |
| 582 // | |
| 583 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
| 584 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
| 585 // are not supposed to call CreateThread() directly according to MSDN | |
| 586 // document because JVM uses C runtime library. The good news is that the | |
| 587 // flag appears to work with _beginthredex() as well. | |
| 588 | |
| 589 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
| 590 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
| 591 #endif | |
| 592 | |
| 593 HANDLE thread_handle = | |
| 594 (HANDLE)_beginthreadex(NULL, | |
| 595 (unsigned)stack_size, | |
| 596 (unsigned (__stdcall *)(void*)) java_start, | |
| 597 thread, | |
| 598 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
| 599 &thread_id); | |
| 600 if (thread_handle == NULL) { | |
| 601 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
| 602 // without the flag. | |
| 603 thread_handle = | |
| 604 (HANDLE)_beginthreadex(NULL, | |
| 605 (unsigned)stack_size, | |
| 606 (unsigned (__stdcall *)(void*)) java_start, | |
| 607 thread, | |
| 608 CREATE_SUSPENDED, | |
| 609 &thread_id); | |
| 610 } | |
| 611 if (thread_handle == NULL) { | |
| 612 // Need to clean up stuff we've allocated so far | |
| 613 CloseHandle(osthread->interrupt_event()); | |
| 614 thread->set_osthread(NULL); | |
| 615 delete osthread; | |
| 616 return NULL; | |
| 617 } | |
| 618 | |
| 619 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 620 | |
| 621 // Store info on the Win32 thread into the OSThread | |
| 622 osthread->set_thread_handle(thread_handle); | |
| 623 osthread->set_thread_id(thread_id); | |
| 624 | |
| 625 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 626 osthread->set_state(INITIALIZED); | |
| 627 | |
| 628 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 629 return true; | |
| 630 } | |
| 631 | |
| 632 | |
| 633 // Free Win32 resources related to the OSThread | |
| 634 void os::free_thread(OSThread* osthread) { | |
| 635 assert(osthread != NULL, "osthread not set"); | |
| 636 CloseHandle(osthread->thread_handle()); | |
| 637 CloseHandle(osthread->interrupt_event()); | |
| 638 delete osthread; | |
| 639 } | |
| 640 | |
| 641 | |
| 642 static int has_performance_count = 0; | |
| 643 static jlong first_filetime; | |
| 644 static jlong initial_performance_count; | |
| 645 static jlong performance_frequency; | |
| 646 | |
| 647 | |
| 648 jlong as_long(LARGE_INTEGER x) { | |
| 649 jlong result = 0; // initialization to avoid warning | |
| 650 set_high(&result, x.HighPart); | |
| 651 set_low(&result, x.LowPart); | |
| 652 return result; | |
| 653 } | |
| 654 | |
| 655 | |
| 656 jlong os::elapsed_counter() { | |
| 657 LARGE_INTEGER count; | |
| 658 if (has_performance_count) { | |
| 659 QueryPerformanceCounter(&count); | |
| 660 return as_long(count) - initial_performance_count; | |
| 661 } else { | |
| 662 FILETIME wt; | |
| 663 GetSystemTimeAsFileTime(&wt); | |
| 664 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
| 665 } | |
| 666 } | |
| 667 | |
| 668 | |
| 669 jlong os::elapsed_frequency() { | |
| 670 if (has_performance_count) { | |
| 671 return performance_frequency; | |
| 672 } else { | |
| 673 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
| 674 return 10000000; | |
| 675 } | |
| 676 } | |
| 677 | |
| 678 | |
| 679 julong os::available_memory() { | |
| 680 return win32::available_memory(); | |
| 681 } | |
| 682 | |
| 683 julong os::win32::available_memory() { | |
|
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684 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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685 // value if total memory is larger than 4GB |
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686 MEMORYSTATUSEX ms; |
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687 ms.dwLength = sizeof(ms); |
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688 GlobalMemoryStatusEx(&ms); |
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689 |
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690 return (julong)ms.ullAvailPhys; |
| 0 | 691 } |
| 692 | |
| 693 julong os::physical_memory() { | |
| 694 return win32::physical_memory(); | |
| 695 } | |
| 696 | |
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697 bool os::has_allocatable_memory_limit(julong* limit) { |
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698 MEMORYSTATUSEX ms; |
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699 ms.dwLength = sizeof(ms); |
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700 GlobalMemoryStatusEx(&ms); |
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701 #ifdef _LP64 |
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702 *limit = (julong)ms.ullAvailVirtual; |
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703 return true; |
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704 #else |
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705 // Limit to 1400m because of the 2gb address space wall |
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706 *limit = MIN2((julong)1400*M, (julong)ms.ullAvailVirtual); |
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707 return true; |
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708 #endif |
| 0 | 709 } |
| 710 | |
| 711 // VC6 lacks DWORD_PTR | |
| 712 #if _MSC_VER < 1300 | |
| 713 typedef UINT_PTR DWORD_PTR; | |
| 714 #endif | |
| 715 | |
| 716 int os::active_processor_count() { | |
| 717 DWORD_PTR lpProcessAffinityMask = 0; | |
| 718 DWORD_PTR lpSystemAffinityMask = 0; | |
| 719 int proc_count = processor_count(); | |
| 720 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
| 721 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
| 722 // Nof active processors is number of bits in process affinity mask | |
| 723 int bitcount = 0; | |
| 724 while (lpProcessAffinityMask != 0) { | |
| 725 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
| 726 bitcount++; | |
| 727 } | |
| 728 return bitcount; | |
| 729 } else { | |
| 730 return proc_count; | |
| 731 } | |
| 732 } | |
| 733 | |
| 4006 | 734 void os::set_native_thread_name(const char *name) { |
| 735 // Not yet implemented. | |
| 736 return; | |
| 737 } | |
| 738 | |
| 0 | 739 bool os::distribute_processes(uint length, uint* distribution) { |
| 740 // Not yet implemented. | |
| 741 return false; | |
| 742 } | |
| 743 | |
| 744 bool os::bind_to_processor(uint processor_id) { | |
| 745 // Not yet implemented. | |
| 746 return false; | |
| 747 } | |
| 748 | |
| 749 static void initialize_performance_counter() { | |
| 750 LARGE_INTEGER count; | |
| 751 if (QueryPerformanceFrequency(&count)) { | |
| 752 has_performance_count = 1; | |
| 753 performance_frequency = as_long(count); | |
| 754 QueryPerformanceCounter(&count); | |
| 755 initial_performance_count = as_long(count); | |
| 756 } else { | |
| 757 has_performance_count = 0; | |
| 758 FILETIME wt; | |
| 759 GetSystemTimeAsFileTime(&wt); | |
| 760 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 761 } | |
| 762 } | |
| 763 | |
| 764 | |
| 765 double os::elapsedTime() { | |
| 766 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
| 767 } | |
| 768 | |
| 769 | |
| 770 // Windows format: | |
| 771 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
| 772 // Java format: | |
| 773 // Java standards require the number of milliseconds since 1/1/1970 | |
| 774 | |
| 775 // Constant offset - calculated using offset() | |
| 776 static jlong _offset = 116444736000000000; | |
| 777 // Fake time counter for reproducible results when debugging | |
| 778 static jlong fake_time = 0; | |
| 779 | |
| 780 #ifdef ASSERT | |
| 781 // Just to be safe, recalculate the offset in debug mode | |
| 782 static jlong _calculated_offset = 0; | |
| 783 static int _has_calculated_offset = 0; | |
| 784 | |
| 785 jlong offset() { | |
| 786 if (_has_calculated_offset) return _calculated_offset; | |
| 787 SYSTEMTIME java_origin; | |
| 788 java_origin.wYear = 1970; | |
| 789 java_origin.wMonth = 1; | |
| 790 java_origin.wDayOfWeek = 0; // ignored | |
| 791 java_origin.wDay = 1; | |
| 792 java_origin.wHour = 0; | |
| 793 java_origin.wMinute = 0; | |
| 794 java_origin.wSecond = 0; | |
| 795 java_origin.wMilliseconds = 0; | |
| 796 FILETIME jot; | |
| 797 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
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798 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
| 0 | 799 } |
| 800 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
| 801 _has_calculated_offset = 1; | |
| 802 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
| 803 return _calculated_offset; | |
| 804 } | |
| 805 #else | |
| 806 jlong offset() { | |
| 807 return _offset; | |
| 808 } | |
| 809 #endif | |
| 810 | |
| 811 jlong windows_to_java_time(FILETIME wt) { | |
| 812 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 813 return (a - offset()) / 10000; | |
| 814 } | |
| 815 | |
| 816 FILETIME java_to_windows_time(jlong l) { | |
| 817 jlong a = (l * 10000) + offset(); | |
| 818 FILETIME result; | |
| 819 result.dwHighDateTime = high(a); | |
| 820 result.dwLowDateTime = low(a); | |
| 821 return result; | |
| 822 } | |
| 823 | |
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824 bool os::supports_vtime() { return true; } |
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825 bool os::enable_vtime() { return false; } |
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826 bool os::vtime_enabled() { return false; } |
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827 |
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828 double os::elapsedVTime() { |
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829 FILETIME created; |
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830 FILETIME exited; |
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831 FILETIME kernel; |
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832 FILETIME user; |
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833 if (GetThreadTimes(GetCurrentThread(), &created, &exited, &kernel, &user) != 0) { |
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834 // the resolution of windows_to_java_time() should be sufficient (ms) |
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835 return (double) (windows_to_java_time(kernel) + windows_to_java_time(user)) / MILLIUNITS; |
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836 } else { |
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837 return elapsedTime(); |
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838 } |
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839 } |
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840 |
| 0 | 841 jlong os::javaTimeMillis() { |
| 842 if (UseFakeTimers) { | |
| 843 return fake_time++; | |
| 844 } else { | |
| 61 | 845 FILETIME wt; |
| 846 GetSystemTimeAsFileTime(&wt); | |
| 847 return windows_to_java_time(wt); | |
| 0 | 848 } |
| 849 } | |
| 850 | |
| 851 jlong os::javaTimeNanos() { | |
| 852 if (!has_performance_count) { | |
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853 return javaTimeMillis() * NANOSECS_PER_MILLISEC; // the best we can do. |
| 0 | 854 } else { |
| 855 LARGE_INTEGER current_count; | |
| 856 QueryPerformanceCounter(¤t_count); | |
| 857 double current = as_long(current_count); | |
| 858 double freq = performance_frequency; | |
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859 jlong time = (jlong)((current/freq) * NANOSECS_PER_SEC); |
| 0 | 860 return time; |
| 861 } | |
| 862 } | |
| 863 | |
| 864 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
| 865 if (!has_performance_count) { | |
| 866 // javaTimeMillis() doesn't have much percision, | |
| 867 // but it is not going to wrap -- so all 64 bits | |
| 868 info_ptr->max_value = ALL_64_BITS; | |
| 869 | |
| 870 // this is a wall clock timer, so may skip | |
| 871 info_ptr->may_skip_backward = true; | |
| 872 info_ptr->may_skip_forward = true; | |
| 873 } else { | |
| 874 jlong freq = performance_frequency; | |
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875 if (freq < NANOSECS_PER_SEC) { |
| 0 | 876 // the performance counter is 64 bits and we will |
| 877 // be multiplying it -- so no wrap in 64 bits | |
| 878 info_ptr->max_value = ALL_64_BITS; | |
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879 } else if (freq > NANOSECS_PER_SEC) { |
| 0 | 880 // use the max value the counter can reach to |
| 881 // determine the max value which could be returned | |
| 882 julong max_counter = (julong)ALL_64_BITS; | |
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883 info_ptr->max_value = (jlong)(max_counter / (freq / NANOSECS_PER_SEC)); |
| 0 | 884 } else { |
| 885 // the performance counter is 64 bits and we will | |
| 886 // be using it directly -- so no wrap in 64 bits | |
| 887 info_ptr->max_value = ALL_64_BITS; | |
| 888 } | |
| 889 | |
| 890 // using a counter, so no skipping | |
| 891 info_ptr->may_skip_backward = false; | |
| 892 info_ptr->may_skip_forward = false; | |
| 893 } | |
| 894 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
| 895 } | |
| 896 | |
| 897 char* os::local_time_string(char *buf, size_t buflen) { | |
| 898 SYSTEMTIME st; | |
| 899 GetLocalTime(&st); | |
| 900 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
| 901 st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); | |
| 902 return buf; | |
| 903 } | |
| 904 | |
| 905 bool os::getTimesSecs(double* process_real_time, | |
| 906 double* process_user_time, | |
| 907 double* process_system_time) { | |
| 908 HANDLE h_process = GetCurrentProcess(); | |
| 909 FILETIME create_time, exit_time, kernel_time, user_time; | |
| 910 BOOL result = GetProcessTimes(h_process, | |
| 911 &create_time, | |
| 912 &exit_time, | |
| 913 &kernel_time, | |
| 914 &user_time); | |
| 915 if (result != 0) { | |
| 916 FILETIME wt; | |
| 917 GetSystemTimeAsFileTime(&wt); | |
| 918 jlong rtc_millis = windows_to_java_time(wt); | |
| 919 jlong user_millis = windows_to_java_time(user_time); | |
| 920 jlong system_millis = windows_to_java_time(kernel_time); | |
| 921 *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS); | |
| 922 *process_user_time = ((double) user_millis) / ((double) MILLIUNITS); | |
| 923 *process_system_time = ((double) system_millis) / ((double) MILLIUNITS); | |
| 924 return true; | |
| 925 } else { | |
| 926 return false; | |
| 927 } | |
| 928 } | |
| 929 | |
| 930 void os::shutdown() { | |
| 931 | |
| 932 // allow PerfMemory to attempt cleanup of any persistent resources | |
| 933 perfMemory_exit(); | |
| 934 | |
| 935 // flush buffered output, finish log files | |
| 936 ostream_abort(); | |
| 937 | |
| 938 // Check for abort hook | |
| 939 abort_hook_t abort_hook = Arguments::abort_hook(); | |
| 940 if (abort_hook != NULL) { | |
| 941 abort_hook(); | |
| 942 } | |
| 943 } | |
| 944 | |
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945 |
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946 static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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947 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
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948 |
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949 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { |
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950 HINSTANCE dbghelp; |
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951 EXCEPTION_POINTERS ep; |
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952 MINIDUMP_EXCEPTION_INFORMATION mei; |
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953 MINIDUMP_EXCEPTION_INFORMATION* pmei; |
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954 |
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955 HANDLE hProcess = GetCurrentProcess(); |
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956 DWORD processId = GetCurrentProcessId(); |
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957 HANDLE dumpFile; |
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958 MINIDUMP_TYPE dumpType; |
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959 static const char* cwd; |
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960 |
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961 // Default is to always create dump for debug builds, on product builds only dump on server versions of Windows. |
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962 #ifndef ASSERT |
|
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963 // If running on a client version of Windows and user has not explicitly enabled dumping |
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964 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) { |
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965 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false); |
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966 return; |
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967 // If running on a server version of Windows and user has explictly disabled dumping |
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968 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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969 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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970 return; |
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971 } |
|
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972 #else |
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973 if (!FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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974 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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975 return; |
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976 } |
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977 #endif |
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978 |
|
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979 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0); |
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980 |
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981 if (dbghelp == NULL) { |
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982 VMError::report_coredump_status("Failed to load dbghelp.dll", false); |
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983 return; |
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984 } |
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985 |
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986 _MiniDumpWriteDump = CAST_TO_FN_PTR( |
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987 BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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988 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION), |
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989 GetProcAddress(dbghelp, "MiniDumpWriteDump")); |
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990 |
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991 if (_MiniDumpWriteDump == NULL) { |
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992 VMError::report_coredump_status("Failed to find MiniDumpWriteDump() in module dbghelp.dll", false); |
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993 return; |
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994 } |
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995 |
|
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996 dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
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997 |
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998 // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
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999 // API_VERSION_NUMBER 11 or higher contains the ones we want though |
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1000 #if API_VERSION_NUMBER >= 11 |
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1001 dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
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1002 MiniDumpWithUnloadedModules); |
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1003 #endif |
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1004 |
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1005 cwd = get_current_directory(NULL, 0); |
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1006 jio_snprintf(buffer, bufferSize, "%s\\hs_err_pid%u.mdmp",cwd, current_process_id()); |
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1007 dumpFile = CreateFile(buffer, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
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1008 |
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1009 if (dumpFile == INVALID_HANDLE_VALUE) { |
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1010 VMError::report_coredump_status("Failed to create file for dumping", false); |
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1011 return; |
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1012 } |
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1013 if (exceptionRecord != NULL && contextRecord != NULL) { |
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1014 ep.ContextRecord = (PCONTEXT) contextRecord; |
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1015 ep.ExceptionRecord = (PEXCEPTION_RECORD) exceptionRecord; |
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1016 |
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1017 mei.ThreadId = GetCurrentThreadId(); |
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1018 mei.ExceptionPointers = &ep; |
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1019 pmei = &mei; |
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1020 } else { |
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1021 pmei = NULL; |
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1022 } |
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1023 |
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1024 |
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1025 // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
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1026 // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
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1027 if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == false && |
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1028 _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == false) { |
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1029 DWORD error = GetLastError(); |
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1030 LPTSTR msgbuf = NULL; |
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1031 |
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1032 if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | |
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1033 FORMAT_MESSAGE_FROM_SYSTEM | |
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1034 FORMAT_MESSAGE_IGNORE_INSERTS, |
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1035 NULL, error, 0, (LPTSTR)&msgbuf, 0, NULL) != 0) { |
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1036 |
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1037 jio_snprintf(buffer, bufferSize, "Call to MiniDumpWriteDump() failed (Error 0x%x: %s)", error, msgbuf); |
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1038 LocalFree(msgbuf); |
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1039 } else { |
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1040 // Call to FormatMessage failed, just include the result from GetLastError |
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1041 jio_snprintf(buffer, bufferSize, "Call to MiniDumpWriteDump() failed (Error 0x%x)", error); |
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1042 } |
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1043 VMError::report_coredump_status(buffer, false); |
|
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1044 } else { |
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1045 VMError::report_coredump_status(buffer, true); |
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1046 } |
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1047 |
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1048 CloseHandle(dumpFile); |
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1049 } |
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1050 |
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1051 |
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1052 |
| 0 | 1053 void os::abort(bool dump_core) |
| 1054 { | |
| 1055 os::shutdown(); | |
| 1056 // no core dump on Windows | |
| 1057 ::exit(1); | |
| 1058 } | |
| 1059 | |
| 1060 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 1061 void os::die() { | |
| 1062 _exit(-1); | |
| 1063 } | |
| 1064 | |
| 1065 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
| 1066 // * dirent_md.c 1.15 00/02/02 | |
| 1067 // | |
| 1068 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
| 1069 | |
| 1070 /* Caller must have already run dirname through JVM_NativePath, which removes | |
| 1071 duplicate slashes and converts all instances of '/' into '\\'. */ | |
| 1072 | |
| 1073 DIR * | |
| 1074 os::opendir(const char *dirname) | |
| 1075 { | |
| 1076 assert(dirname != NULL, "just checking"); // hotspot change | |
| 6197 | 1077 DIR *dirp = (DIR *)malloc(sizeof(DIR), mtInternal); |
| 0 | 1078 DWORD fattr; // hotspot change |
| 1079 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
| 1080 | |
| 1081 if (dirp == 0) { | |
| 1082 errno = ENOMEM; | |
| 1083 return 0; | |
| 1084 } | |
| 1085 | |
| 1086 /* | |
| 1087 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
| 1088 * as a directory in FindFirstFile(). We detect this case here and | |
| 1089 * prepend the current drive name. | |
| 1090 */ | |
| 1091 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
| 1092 alt_dirname[0] = _getdrive() + 'A' - 1; | |
| 1093 alt_dirname[1] = ':'; | |
| 1094 alt_dirname[2] = '\\'; | |
| 1095 alt_dirname[3] = '\0'; | |
| 1096 dirname = alt_dirname; | |
| 1097 } | |
| 1098 | |
| 6197 | 1099 dirp->path = (char *)malloc(strlen(dirname) + 5, mtInternal); |
| 0 | 1100 if (dirp->path == 0) { |
| 6197 | 1101 free(dirp, mtInternal); |
| 0 | 1102 errno = ENOMEM; |
| 1103 return 0; | |
| 1104 } | |
| 1105 strcpy(dirp->path, dirname); | |
| 1106 | |
| 1107 fattr = GetFileAttributes(dirp->path); | |
| 1108 if (fattr == 0xffffffff) { | |
| 6197 | 1109 free(dirp->path, mtInternal); |
| 1110 free(dirp, mtInternal); | |
| 0 | 1111 errno = ENOENT; |
| 1112 return 0; | |
| 1113 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
| 6197 | 1114 free(dirp->path, mtInternal); |
| 1115 free(dirp, mtInternal); | |
| 0 | 1116 errno = ENOTDIR; |
| 1117 return 0; | |
| 1118 } | |
| 1119 | |
| 1120 /* Append "*.*", or possibly "\\*.*", to path */ | |
| 1121 if (dirp->path[1] == ':' | |
| 1122 && (dirp->path[2] == '\0' | |
| 1123 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
| 1124 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
| 1125 strcat(dirp->path, "*.*"); | |
| 1126 } else { | |
| 1127 strcat(dirp->path, "\\*.*"); | |
| 1128 } | |
| 1129 | |
| 1130 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
| 1131 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1132 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
| 6197 | 1133 free(dirp->path, mtInternal); |
| 1134 free(dirp, mtInternal); | |
| 0 | 1135 errno = EACCES; |
| 1136 return 0; | |
| 1137 } | |
| 1138 } | |
| 1139 return dirp; | |
| 1140 } | |
| 1141 | |
| 1142 /* parameter dbuf unused on Windows */ | |
| 1143 | |
| 1144 struct dirent * | |
| 1145 os::readdir(DIR *dirp, dirent *dbuf) | |
| 1146 { | |
| 1147 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1148 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1149 return 0; | |
| 1150 } | |
| 1151 | |
| 1152 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
| 1153 | |
| 1154 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
| 1155 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
| 1156 errno = EBADF; | |
| 1157 return 0; | |
| 1158 } | |
| 1159 FindClose(dirp->handle); | |
| 1160 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1161 } | |
| 1162 | |
| 1163 return &dirp->dirent; | |
| 1164 } | |
| 1165 | |
| 1166 int | |
| 1167 os::closedir(DIR *dirp) | |
| 1168 { | |
| 1169 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1170 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
| 1171 if (!FindClose(dirp->handle)) { | |
| 1172 errno = EBADF; | |
| 1173 return -1; | |
| 1174 } | |
| 1175 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1176 } | |
| 6197 | 1177 free(dirp->path, mtInternal); |
| 1178 free(dirp, mtInternal); | |
| 0 | 1179 return 0; |
| 1180 } | |
| 1181 | |
|
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1182 // This must be hard coded because it's the system's temporary |
|
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|
1183 // directory not the java application's temp directory, ala java.io.tmpdir. |
|
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1184 const char* os::get_temp_directory() { |
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1185 static char path_buf[MAX_PATH]; |
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1186 if (GetTempPath(MAX_PATH, path_buf)>0) |
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1187 return path_buf; |
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1188 else{ |
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1189 path_buf[0]='\0'; |
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1190 return path_buf; |
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|
1191 } |
| 0 | 1192 } |
| 1193 | |
| 691 | 1194 static bool file_exists(const char* filename) { |
| 1195 if (filename == NULL || strlen(filename) == 0) { | |
| 1196 return false; | |
| 1197 } | |
| 1198 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
| 1199 } | |
| 1200 | |
|
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|
1201 bool os::dll_build_name(char *buffer, size_t buflen, |
| 691 | 1202 const char* pname, const char* fname) { |
|
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|
1203 bool retval = false; |
| 691 | 1204 const size_t pnamelen = pname ? strlen(pname) : 0; |
| 1205 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
| 1206 | |
|
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|
1207 // Return error on buffer overflow. |
| 691 | 1208 if (pnamelen + strlen(fname) + 10 > buflen) { |
|
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|
1209 return retval; |
| 691 | 1210 } |
| 1211 | |
| 1212 if (pnamelen == 0) { | |
| 1213 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
|
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|
1214 retval = true; |
| 691 | 1215 } else if (c == ':' || c == '\\') { |
| 1216 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
|
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|
1217 retval = true; |
| 691 | 1218 } else if (strchr(pname, *os::path_separator()) != NULL) { |
| 1219 int n; | |
| 1220 char** pelements = split_path(pname, &n); | |
|
9059
17bf4d428955
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|
1221 if (pelements == NULL) { |
| 9062 | 1222 return false; |
|
9059
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|
1223 } |
| 691 | 1224 for (int i = 0 ; i < n ; i++) { |
| 1225 char* path = pelements[i]; | |
| 1226 // Really shouldn't be NULL, but check can't hurt | |
| 1227 size_t plen = (path == NULL) ? 0 : strlen(path); | |
| 1228 if (plen == 0) { | |
| 1229 continue; // skip the empty path values | |
| 1230 } | |
| 1231 const char lastchar = path[plen - 1]; | |
| 1232 if (lastchar == ':' || lastchar == '\\') { | |
| 1233 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
| 1234 } else { | |
| 1235 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
| 1236 } | |
| 1237 if (file_exists(buffer)) { | |
|
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|
1238 retval = true; |
| 691 | 1239 break; |
| 1240 } | |
| 242 | 1241 } |
| 691 | 1242 // release the storage |
| 1243 for (int i = 0 ; i < n ; i++) { | |
| 1244 if (pelements[i] != NULL) { | |
| 6197 | 1245 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
| 691 | 1246 } |
| 242 | 1247 } |
| 691 | 1248 if (pelements != NULL) { |
| 6197 | 1249 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
| 691 | 1250 } |
| 1251 } else { | |
| 1252 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
|
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|
1253 retval = true; |
|
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|
1254 } |
|
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|
1255 return retval; |
| 242 | 1256 } |
| 1257 | |
| 0 | 1258 // Needs to be in os specific directory because windows requires another |
| 1259 // header file <direct.h> | |
|
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|
1260 const char* os::get_current_directory(char *buf, size_t buflen) { |
|
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|
1261 int n = static_cast<int>(buflen); |
|
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|
1262 if (buflen > INT_MAX) n = INT_MAX; |
|
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|
1263 return _getcwd(buf, n); |
| 0 | 1264 } |
| 1265 | |
| 1266 //----------------------------------------------------------- | |
| 1267 // Helper functions for fatal error handler | |
| 1268 #ifdef _WIN64 | |
| 1269 // Helper routine which returns true if address in | |
| 1270 // within the NTDLL address space. | |
| 1271 // | |
| 1272 static bool _addr_in_ntdll( address addr ) | |
| 1273 { | |
| 1274 HMODULE hmod; | |
| 1275 MODULEINFO minfo; | |
| 1276 | |
| 1277 hmod = GetModuleHandle("NTDLL.DLL"); | |
| 1278 if ( hmod == NULL ) return false; | |
|
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|
1279 if ( !os::PSApiDll::GetModuleInformation( GetCurrentProcess(), hmod, |
| 0 | 1280 &minfo, sizeof(MODULEINFO)) ) |
| 1281 return false; | |
| 1282 | |
| 1283 if ( (addr >= minfo.lpBaseOfDll) && | |
| 1284 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
| 1285 return true; | |
| 1286 else | |
| 1287 return false; | |
| 1288 } | |
| 1289 #endif | |
| 1290 | |
| 1291 | |
| 1292 // Enumerate all modules for a given process ID | |
| 1293 // | |
| 1294 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
| 1295 // different API for doing this. We use PSAPI.DLL on NT based | |
| 1296 // Windows and ToolHelp on 95/98/Me. | |
| 1297 | |
| 1298 // Callback function that is called by enumerate_modules() on | |
| 1299 // every DLL module. | |
| 1300 // Input parameters: | |
| 1301 // int pid, | |
| 1302 // char* module_file_name, | |
| 1303 // address module_base_addr, | |
| 1304 // unsigned module_size, | |
| 1305 // void* param | |
| 1306 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
| 1307 | |
| 1308 // enumerate_modules for Windows NT, using PSAPI | |
| 1309 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
| 1310 { | |
| 1311 HANDLE hProcess ; | |
| 1312 | |
| 1313 # define MAX_NUM_MODULES 128 | |
| 1314 HMODULE modules[MAX_NUM_MODULES]; | |
| 1315 static char filename[ MAX_PATH ]; | |
| 1316 int result = 0; | |
| 1317 | |
|
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|
1318 if (!os::PSApiDll::PSApiAvailable()) { |
|
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|
1319 return 0; |
|
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|
1320 } |
| 0 | 1321 |
| 1322 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
| 1323 FALSE, pid ) ; | |
| 1324 if (hProcess == NULL) return 0; | |
| 1325 | |
| 1326 DWORD size_needed; | |
|
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|
1327 if (!os::PSApiDll::EnumProcessModules(hProcess, modules, |
| 0 | 1328 sizeof(modules), &size_needed)) { |
| 1329 CloseHandle( hProcess ); | |
| 1330 return 0; | |
| 1331 } | |
| 1332 | |
| 1333 // number of modules that are currently loaded | |
| 1334 int num_modules = size_needed / sizeof(HMODULE); | |
| 1335 | |
| 1336 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
| 1337 // Get Full pathname: | |
|
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|
1338 if(!os::PSApiDll::GetModuleFileNameEx(hProcess, modules[i], |
| 0 | 1339 filename, sizeof(filename))) { |
| 1340 filename[0] = '\0'; | |
| 1341 } | |
| 1342 | |
| 1343 MODULEINFO modinfo; | |
|
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|
1344 if (!os::PSApiDll::GetModuleInformation(hProcess, modules[i], |
| 0 | 1345 &modinfo, sizeof(modinfo))) { |
| 1346 modinfo.lpBaseOfDll = NULL; | |
| 1347 modinfo.SizeOfImage = 0; | |
| 1348 } | |
| 1349 | |
| 1350 // Invoke callback function | |
| 1351 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
| 1352 modinfo.SizeOfImage, param); | |
| 1353 if (result) break; | |
| 1354 } | |
| 1355 | |
| 1356 CloseHandle( hProcess ) ; | |
| 1357 return result; | |
| 1358 } | |
| 1359 | |
| 1360 | |
| 1361 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
| 1362 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
| 1363 { | |
| 1364 HANDLE hSnapShot ; | |
| 1365 static MODULEENTRY32 modentry ; | |
| 1366 int result = 0; | |
| 1367 | |
|
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1368 if (!os::Kernel32Dll::HelpToolsAvailable()) { |
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|
1369 return 0; |
|
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|
1370 } |
| 0 | 1371 |
| 1372 // Get a handle to a Toolhelp snapshot of the system | |
|
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|
1373 hSnapShot = os::Kernel32Dll::CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; |
| 0 | 1374 if( hSnapShot == INVALID_HANDLE_VALUE ) { |
| 1375 return FALSE ; | |
| 1376 } | |
| 1377 | |
| 1378 // iterate through all modules | |
| 1379 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
|
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|
1380 bool not_done = os::Kernel32Dll::Module32First( hSnapShot, &modentry ) != 0; |
| 0 | 1381 |
| 1382 while( not_done ) { | |
| 1383 // invoke the callback | |
| 1384 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
| 1385 modentry.modBaseSize, param); | |
| 1386 if (result) break; | |
| 1387 | |
| 1388 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
|
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1389 not_done = os::Kernel32Dll::Module32Next( hSnapShot, &modentry ) != 0; |
| 0 | 1390 } |
| 1391 | |
| 1392 CloseHandle(hSnapShot); | |
| 1393 return result; | |
| 1394 } | |
| 1395 | |
| 1396 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
| 1397 { | |
| 1398 // Get current process ID if caller doesn't provide it. | |
| 1399 if (!pid) pid = os::current_process_id(); | |
| 1400 | |
| 1401 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
| 1402 else return _enumerate_modules_windows(pid, func, param); | |
| 1403 } | |
| 1404 | |
| 1405 struct _modinfo { | |
| 1406 address addr; | |
| 1407 char* full_path; // point to a char buffer | |
| 1408 int buflen; // size of the buffer | |
| 1409 address base_addr; | |
| 1410 }; | |
| 1411 | |
| 1412 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
| 1413 unsigned size, void * param) { | |
| 1414 struct _modinfo *pmod = (struct _modinfo *)param; | |
| 1415 if (!pmod) return -1; | |
| 1416 | |
| 1417 if (base_addr <= pmod->addr && | |
| 1418 base_addr+size > pmod->addr) { | |
| 1419 // if a buffer is provided, copy path name to the buffer | |
| 1420 if (pmod->full_path) { | |
| 1421 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
| 1422 } | |
| 1423 pmod->base_addr = base_addr; | |
| 1424 return 1; | |
| 1425 } | |
| 1426 return 0; | |
| 1427 } | |
| 1428 | |
| 1429 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1430 int buflen, int* offset) { | |
|
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1431 // buf is not optional, but offset is optional |
|
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1432 assert(buf != NULL, "sanity check"); |
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1433 |
| 0 | 1434 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always |
| 1435 // return the full path to the DLL file, sometimes it returns path | |
| 1436 // to the corresponding PDB file (debug info); sometimes it only | |
| 1437 // returns partial path, which makes life painful. | |
| 1438 | |
|
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1439 struct _modinfo mi; |
|
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1440 mi.addr = addr; |
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1441 mi.full_path = buf; |
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1442 mi.buflen = buflen; |
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1443 int pid = os::current_process_id(); |
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1444 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { |
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1445 // buf already contains path name |
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1446 if (offset) *offset = addr - mi.base_addr; |
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1447 return true; |
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1448 } |
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1449 |
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1450 buf[0] = '\0'; |
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1451 if (offset) *offset = -1; |
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1452 return false; |
| 0 | 1453 } |
| 1454 | |
| 1455 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1456 int buflen, int *offset) { | |
|
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1457 // buf is not optional, but offset is optional |
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1458 assert(buf != NULL, "sanity check"); |
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1459 |
| 4803 | 1460 if (Decoder::decode(addr, buf, buflen, offset)) { |
|
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1461 return true; |
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1462 } |
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1463 if (offset != NULL) *offset = -1; |
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1464 buf[0] = '\0'; |
| 0 | 1465 return false; |
| 1466 } | |
| 1467 | |
| 1468 // save the start and end address of jvm.dll into param[0] and param[1] | |
| 1469 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
| 1470 unsigned size, void * param) { | |
| 1471 if (!param) return -1; | |
| 1472 | |
| 1473 if (base_addr <= (address)_locate_jvm_dll && | |
| 1474 base_addr+size > (address)_locate_jvm_dll) { | |
| 1475 ((address*)param)[0] = base_addr; | |
| 1476 ((address*)param)[1] = base_addr + size; | |
| 1477 return 1; | |
| 1478 } | |
| 1479 return 0; | |
| 1480 } | |
| 1481 | |
| 1482 address vm_lib_location[2]; // start and end address of jvm.dll | |
| 1483 | |
| 1484 // check if addr is inside jvm.dll | |
| 1485 bool os::address_is_in_vm(address addr) { | |
| 1486 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
| 1487 int pid = os::current_process_id(); | |
| 1488 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
| 1489 assert(false, "Can't find jvm module."); | |
| 1490 return false; | |
| 1491 } | |
| 1492 } | |
| 1493 | |
| 1494 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
| 1495 } | |
| 1496 | |
| 1497 // print module info; param is outputStream* | |
| 1498 static int _print_module(int pid, char* fname, address base, | |
| 1499 unsigned size, void* param) { | |
| 1500 if (!param) return -1; | |
| 1501 | |
| 1502 outputStream* st = (outputStream*)param; | |
| 1503 | |
| 1504 address end_addr = base + size; | |
| 1505 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
| 1506 return 0; | |
| 1507 } | |
| 1508 | |
| 1509 // Loads .dll/.so and | |
| 1510 // in case of error it checks if .dll/.so was built for the | |
| 1511 // same architecture as Hotspot is running on | |
| 1512 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
| 1513 { | |
| 1514 void * result = LoadLibrary(name); | |
| 1515 if (result != NULL) | |
| 1516 { | |
| 1517 return result; | |
| 1518 } | |
| 1519 | |
|
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|
1520 DWORD errcode = GetLastError(); |
| 0 | 1521 if (errcode == ERROR_MOD_NOT_FOUND) { |
| 1522 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
| 1523 ebuf[ebuflen-1]='\0'; | |
| 1524 return NULL; | |
| 1525 } | |
| 1526 | |
| 1527 // Parsing dll below | |
| 1528 // If we can read dll-info and find that dll was built | |
| 1529 // for an architecture other than Hotspot is running in | |
| 1530 // - then print to buffer "DLL was built for a different architecture" | |
|
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1531 // else call os::lasterror to obtain system error message |
| 0 | 1532 |
| 1533 // Read system error message into ebuf | |
| 1534 // It may or may not be overwritten below (in the for loop and just above) | |
|
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1535 lasterror(ebuf, (size_t) ebuflen); |
| 0 | 1536 ebuf[ebuflen-1]='\0'; |
| 1537 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
| 1538 if (file_descriptor<0) | |
| 1539 { | |
| 1540 return NULL; | |
| 1541 } | |
| 1542 | |
| 1543 uint32_t signature_offset; | |
| 1544 uint16_t lib_arch=0; | |
| 1545 bool failed_to_get_lib_arch= | |
| 1546 ( | |
| 1547 //Go to position 3c in the dll | |
| 1548 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
| 1549 || | |
| 1550 // Read loacation of signature | |
| 1551 (sizeof(signature_offset)!= | |
| 1552 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
| 1553 || | |
| 1554 //Go to COFF File Header in dll | |
| 1555 //that is located after"signature" (4 bytes long) | |
| 1556 (os::seek_to_file_offset(file_descriptor, | |
| 1557 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
| 1558 || | |
| 1559 //Read field that contains code of architecture | |
| 1560 // that dll was build for | |
| 1561 (sizeof(lib_arch)!= | |
| 1562 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
| 1563 ); | |
| 1564 | |
| 1565 ::close(file_descriptor); | |
| 1566 if (failed_to_get_lib_arch) | |
| 1567 { | |
|
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|
1568 // file i/o error - report os::lasterror(...) msg |
| 0 | 1569 return NULL; |
| 1570 } | |
| 1571 | |
| 1572 typedef struct | |
| 1573 { | |
| 1574 uint16_t arch_code; | |
| 1575 char* arch_name; | |
| 1576 } arch_t; | |
| 1577 | |
| 1578 static const arch_t arch_array[]={ | |
| 1579 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
| 1580 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
| 1581 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
| 1582 }; | |
| 1583 #if (defined _M_IA64) | |
| 1584 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
| 1585 #elif (defined _M_AMD64) | |
| 1586 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
| 1587 #elif (defined _M_IX86) | |
| 1588 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
| 1589 #else | |
| 1590 #error Method os::dll_load requires that one of following \ | |
| 1591 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
| 1592 #endif | |
| 1593 | |
| 1594 | |
| 1595 // Obtain a string for printf operation | |
| 1596 // lib_arch_str shall contain string what platform this .dll was built for | |
| 1597 // running_arch_str shall string contain what platform Hotspot was built for | |
| 1598 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
| 1599 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
| 1600 { | |
| 1601 if (lib_arch==arch_array[i].arch_code) | |
| 1602 lib_arch_str=arch_array[i].arch_name; | |
| 1603 if (running_arch==arch_array[i].arch_code) | |
| 1604 running_arch_str=arch_array[i].arch_name; | |
| 1605 } | |
| 1606 | |
| 1607 assert(running_arch_str, | |
| 1608 "Didn't find runing architecture code in arch_array"); | |
| 1609 | |
| 1610 // If the architure is right | |
|
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|
1611 // but some other error took place - report os::lasterror(...) msg |
| 0 | 1612 if (lib_arch == running_arch) |
| 1613 { | |
| 1614 return NULL; | |
| 1615 } | |
| 1616 | |
| 1617 if (lib_arch_str!=NULL) | |
| 1618 { | |
| 1619 ::_snprintf(ebuf, ebuflen-1, | |
| 1620 "Can't load %s-bit .dll on a %s-bit platform", | |
| 1621 lib_arch_str,running_arch_str); | |
| 1622 } | |
| 1623 else | |
| 1624 { | |
| 1625 // don't know what architecture this dll was build for | |
| 1626 ::_snprintf(ebuf, ebuflen-1, | |
| 1627 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
| 1628 lib_arch,running_arch_str); | |
| 1629 } | |
| 1630 | |
| 1631 return NULL; | |
| 1632 } | |
| 1633 | |
| 1634 | |
| 1635 void os::print_dll_info(outputStream *st) { | |
| 1636 int pid = os::current_process_id(); | |
| 1637 st->print_cr("Dynamic libraries:"); | |
| 1638 enumerate_modules(pid, _print_module, (void *)st); | |
| 1639 } | |
| 1640 | |
|
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|
1641 void os::print_os_info_brief(outputStream* st) { |
|
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|
1642 os::print_os_info(st); |
|
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|
1643 } |
|
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|
1644 |
| 0 | 1645 void os::print_os_info(outputStream* st) { |
|
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|
1646 st->print("OS:"); |
|
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1647 |
|
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|
1648 os::win32::print_windows_version(st); |
|
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|
1649 } |
|
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1650 |
|
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1651 void os::win32::print_windows_version(outputStream* st) { |
|
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1652 OSVERSIONINFOEX osvi; |
|
20629
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|
1653 VS_FIXEDFILEINFO *file_info; |
|
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|
1654 TCHAR kernel32_path[MAX_PATH]; |
|
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|
1655 UINT len, ret; |
|
09259e52a610
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|
1656 |
|
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|
1657 // Use the GetVersionEx information to see if we're on a server or |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
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|
1658 // workstation edition of Windows. Starting with Windows 8.1 we can't |
|
09259e52a610
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|
1659 // trust the OS version information returned by this API. |
|
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1660 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
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1661 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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1662 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
|
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1663 st->print_cr("Call to GetVersionEx failed"); |
|
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|
1664 return; |
|
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|
1665 } |
|
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1666 bool is_workstation = (osvi.wProductType == VER_NT_WORKSTATION); |
|
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1667 |
|
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1668 // Get the full path to \Windows\System32\kernel32.dll and use that for |
|
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1669 // determining what version of Windows we're running on. |
|
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1670 len = MAX_PATH - (UINT)strlen("\\kernel32.dll") - 1; |
|
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1671 ret = GetSystemDirectory(kernel32_path, len); |
|
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1672 if (ret == 0 || ret > len) { |
|
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|
1673 st->print_cr("Call to GetSystemDirectory failed"); |
|
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|
1674 return; |
|
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|
1675 } |
|
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|
1676 strncat(kernel32_path, "\\kernel32.dll", MAX_PATH - ret); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1677 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1678 DWORD version_size = GetFileVersionInfoSize(kernel32_path, NULL); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1679 if (version_size == 0) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1680 st->print_cr("Call to GetFileVersionInfoSize failed"); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1681 return; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1682 } |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1683 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1684 LPTSTR version_info = (LPTSTR)os::malloc(version_size, mtInternal); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1685 if (version_info == NULL) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1686 st->print_cr("Failed to allocate version_info"); |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1687 return; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1688 } |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1689 |
|
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1690 if (!GetFileVersionInfo(kernel32_path, NULL, version_size, version_info)) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1691 os::free(version_info); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1692 st->print_cr("Call to GetFileVersionInfo failed"); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1693 return; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1694 } |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1695 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1696 if (!VerQueryValue(version_info, TEXT("\\"), (LPVOID*)&file_info, &len)) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1697 os::free(version_info); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1698 st->print_cr("Call to VerQueryValue failed"); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1699 return; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1700 } |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1701 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1702 int major_version = HIWORD(file_info->dwProductVersionMS); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1703 int minor_version = LOWORD(file_info->dwProductVersionMS); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1704 int build_number = HIWORD(file_info->dwProductVersionLS); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1705 int build_minor = LOWORD(file_info->dwProductVersionLS); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1706 int os_vers = major_version * 1000 + minor_version; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1707 os::free(version_info); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1708 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1709 st->print(" Windows "); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1710 switch (os_vers) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1711 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1712 case 6000: |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1713 if (is_workstation) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1714 st->print("Vista"); |
|
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1715 } else { |
|
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1716 st->print("Server 2008"); |
|
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1717 } |
|
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1718 break; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1719 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1720 case 6001: |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1721 if (is_workstation) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1722 st->print("7"); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1723 } else { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1724 st->print("Server 2008 R2"); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1725 } |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1726 break; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1727 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1728 case 6002: |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1729 if (is_workstation) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1730 st->print("8"); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1731 } else { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1732 st->print("Server 2012"); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1733 } |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1734 break; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1735 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1736 case 6003: |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1737 if (is_workstation) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1738 st->print("8.1"); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1739 } else { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1740 st->print("Server 2012 R2"); |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1741 } |
|
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1742 break; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1743 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1744 case 6004: |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1745 if (is_workstation) { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1746 st->print("10"); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1747 } else { |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1748 // The server version name of Windows 10 is not known at this time |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1749 st->print("%d.%d", major_version, minor_version); |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1750 } |
|
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1751 break; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1752 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1753 default: |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1754 // Unrecognized windows, print out its major and minor versions |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1755 st->print("%d.%d", major_version, minor_version); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1756 break; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1757 } |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1758 |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1759 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1760 // find out whether we are running on 64 bit processor or not |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1761 SYSTEM_INFO si; |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1762 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1763 os::Kernel32Dll::GetNativeSystemInfo(&si); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1764 if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) { |
|
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1765 st->print(" , 64 bit"); |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1766 } |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1767 |
|
20629
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1768 st->print(" Build %d", build_number); |
|
09259e52a610
8059803: Update use of GetVersionEx to get correct Windows version in hs_err files
ctornqvi
parents:
20367
diff
changeset
|
1769 st->print(" (%d.%d.%d.%d)", major_version, minor_version, build_number, build_minor); |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1770 st->cr(); |
| 0 | 1771 } |
| 1772 | |
|
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1773 void os::pd_print_cpu_info(outputStream* st) { |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1774 // Nothing to do for now. |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1775 } |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1776 |
| 0 | 1777 void os::print_memory_info(outputStream* st) { |
| 1778 st->print("Memory:"); | |
| 1779 st->print(" %dk page", os::vm_page_size()>>10); | |
| 1780 | |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1781 // 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
|
1782 // 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
|
1783 MEMORYSTATUSEX ms; |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1784 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
|
1785 GlobalMemoryStatusEx(&ms); |
| 0 | 1786 |
| 1787 st->print(", physical %uk", os::physical_memory() >> 10); | |
| 1788 st->print("(%uk free)", os::available_memory() >> 10); | |
| 1789 | |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1790 st->print(", swap %uk", ms.ullTotalPageFile >> 10); |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1791 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
| 0 | 1792 st->cr(); |
| 1793 } | |
| 1794 | |
| 1795 void os::print_siginfo(outputStream *st, void *siginfo) { | |
| 1796 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
| 1797 st->print("siginfo:"); | |
| 1798 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
| 1799 | |
| 1800 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 1801 er->NumberParameters >= 2) { | |
| 1802 switch (er->ExceptionInformation[0]) { | |
| 1803 case 0: st->print(", reading address"); break; | |
| 1804 case 1: st->print(", writing address"); break; | |
| 1805 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
| 1806 er->ExceptionInformation[0]); | |
| 1807 } | |
| 1808 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
| 1809 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
| 1810 er->NumberParameters >= 2 && UseSharedSpaces) { | |
| 1811 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 1812 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
| 1813 st->print("\n\nError accessing class data sharing archive." \ | |
| 1814 " Mapped file inaccessible during execution, " \ | |
| 1815 " possible disk/network problem."); | |
| 1816 } | |
| 1817 } else { | |
| 1818 int num = er->NumberParameters; | |
| 1819 if (num > 0) { | |
| 1820 st->print(", ExceptionInformation="); | |
| 1821 for (int i = 0; i < num; i++) { | |
| 1822 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
| 1823 } | |
| 1824 } | |
| 1825 } | |
| 1826 st->cr(); | |
| 1827 } | |
| 1828 | |
| 1829 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 1830 // do nothing | |
| 1831 } | |
| 1832 | |
| 1833 static char saved_jvm_path[MAX_PATH] = {0}; | |
| 1834 | |
|
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1835 // Find the full path to the current module, jvm.dll |
| 0 | 1836 void os::jvm_path(char *buf, jint buflen) { |
| 1837 // Error checking. | |
| 1838 if (buflen < MAX_PATH) { | |
| 1839 assert(false, "must use a large-enough buffer"); | |
| 1840 buf[0] = '\0'; | |
| 1841 return; | |
| 1842 } | |
| 1843 // Lazy resolve the path to current module. | |
| 1844 if (saved_jvm_path[0] != 0) { | |
| 1845 strcpy(buf, saved_jvm_path); | |
| 1846 return; | |
| 1847 } | |
| 1848 | |
| 1985 | 1849 buf[0] = '\0'; |
|
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1850 if (Arguments::created_by_gamma_launcher()) { |
| 1985 | 1851 // Support for the gamma launcher. Check for an |
|
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1852 // JAVA_HOME environment variable |
| 1985 | 1853 // and fix up the path so it looks like |
| 1854 // libjvm.so is installed there (append a fake suffix | |
| 1855 // hotspot/libjvm.so). | |
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1856 char* java_home_var = ::getenv("JAVA_HOME"); |
| 17567 | 1857 if (java_home_var != NULL && java_home_var[0] != 0 && |
| 1858 strlen(java_home_var) < (size_t)buflen) { | |
| 1985 | 1859 |
| 1860 strncpy(buf, java_home_var, buflen); | |
| 1861 | |
| 1862 // determine if this is a legacy image or modules image | |
| 1863 // modules image doesn't have "jre" subdirectory | |
| 1864 size_t len = strlen(buf); | |
| 1865 char* jrebin_p = buf + len; | |
| 1866 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
| 1867 if (0 != _access(buf, 0)) { | |
| 1868 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
| 1869 } | |
| 1870 len = strlen(buf); | |
| 1871 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
| 1872 } | |
| 1873 } | |
| 1874 | |
| 1875 if(buf[0] == '\0') { | |
| 17567 | 1876 GetModuleFileName(vm_lib_handle, buf, buflen); |
| 1877 } | |
| 1878 strncpy(saved_jvm_path, buf, MAX_PATH); | |
| 0 | 1879 } |
| 1880 | |
| 1881 | |
| 1882 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 1883 #ifndef _WIN64 | |
| 1884 st->print("_"); | |
| 1885 #endif | |
| 1886 } | |
| 1887 | |
| 1888 | |
| 1889 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 1890 #ifndef _WIN64 | |
| 1891 st->print("@%d", args_size * sizeof(int)); | |
| 1892 #endif | |
| 1893 } | |
| 1894 | |
|
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1895 // This method is a copy of JDK's sysGetLastErrorString |
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1896 // from src/windows/hpi/src/system_md.c |
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1897 |
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1898 size_t os::lasterror(char* buf, size_t len) { |
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1899 DWORD errval; |
|
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1900 |
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1901 if ((errval = GetLastError()) != 0) { |
|
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1902 // DOS error |
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1903 size_t n = (size_t)FormatMessage( |
|
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1904 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
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1905 NULL, |
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1906 errval, |
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1907 0, |
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1908 buf, |
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1909 (DWORD)len, |
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1910 NULL); |
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1911 if (n > 3) { |
|
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1912 // Drop final '.', CR, LF |
|
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1913 if (buf[n - 1] == '\n') n--; |
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1914 if (buf[n - 1] == '\r') n--; |
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1915 if (buf[n - 1] == '.') n--; |
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1916 buf[n] = '\0'; |
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1917 } |
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1918 return n; |
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1919 } |
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1920 |
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1921 if (errno != 0) { |
|
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1922 // C runtime error that has no corresponding DOS error code |
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1923 const char* s = strerror(errno); |
|
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1924 size_t n = strlen(s); |
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1925 if (n >= len) n = len - 1; |
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1926 strncpy(buf, s, n); |
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1927 buf[n] = '\0'; |
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1928 return n; |
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1929 } |
|
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1930 |
|
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1931 return 0; |
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1932 } |
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1933 |
|
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1934 int os::get_last_error() { |
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1935 DWORD error = GetLastError(); |
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1936 if (error == 0) |
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1937 error = errno; |
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1938 return (int)error; |
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1939 } |
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1940 |
| 0 | 1941 // sun.misc.Signal |
| 1942 // NOTE that this is a workaround for an apparent kernel bug where if | |
| 1943 // a signal handler for SIGBREAK is installed then that signal handler | |
| 1944 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
| 1945 // See bug 4416763. | |
| 1946 static void (*sigbreakHandler)(int) = NULL; | |
| 1947 | |
| 1948 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 1949 os::signal_notify(sig); | |
| 1950 // We need to reinstate the signal handler each time... | |
| 1951 os::signal(sig, (void*)UserHandler); | |
| 1952 } | |
| 1953 | |
| 1954 void* os::user_handler() { | |
| 1955 return (void*) UserHandler; | |
| 1956 } | |
| 1957 | |
| 1958 void* os::signal(int signal_number, void* handler) { | |
| 1959 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
| 1960 void (*oldHandler)(int) = sigbreakHandler; | |
| 1961 sigbreakHandler = (void (*)(int)) handler; | |
| 1962 return (void*) oldHandler; | |
| 1963 } else { | |
| 1964 return (void*)::signal(signal_number, (void (*)(int))handler); | |
| 1965 } | |
| 1966 } | |
| 1967 | |
| 1968 void os::signal_raise(int signal_number) { | |
| 1969 raise(signal_number); | |
| 1970 } | |
| 1971 | |
| 1972 // The Win32 C runtime library maps all console control events other than ^C | |
| 1973 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
| 1974 // logoff, and shutdown events. We therefore install our own console handler | |
| 1975 // that raises SIGTERM for the latter cases. | |
| 1976 // | |
| 1977 static BOOL WINAPI consoleHandler(DWORD event) { | |
| 1978 switch(event) { | |
| 1979 case CTRL_C_EVENT: | |
| 1980 if (is_error_reported()) { | |
| 1981 // Ctrl-C is pressed during error reporting, likely because the error | |
| 1982 // handler fails to abort. Let VM die immediately. | |
| 1983 os::die(); | |
| 1984 } | |
| 1985 | |
| 1986 os::signal_raise(SIGINT); | |
| 1987 return TRUE; | |
| 1988 break; | |
| 1989 case CTRL_BREAK_EVENT: | |
| 1990 if (sigbreakHandler != NULL) { | |
| 1991 (*sigbreakHandler)(SIGBREAK); | |
| 1992 } | |
| 1993 return TRUE; | |
| 1994 break; | |
|
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1995 case CTRL_LOGOFF_EVENT: { |
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1996 // Don't terminate JVM if it is running in a non-interactive session, |
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1997 // such as a service process. |
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1998 USEROBJECTFLAGS flags; |
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1999 HANDLE handle = GetProcessWindowStation(); |
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2000 if (handle != NULL && |
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2001 GetUserObjectInformation(handle, UOI_FLAGS, &flags, |
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2002 sizeof( USEROBJECTFLAGS), NULL)) { |
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2003 // If it is a non-interactive session, let next handler to deal |
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2004 // with it. |
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2005 if ((flags.dwFlags & WSF_VISIBLE) == 0) { |
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2006 return FALSE; |
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2007 } |
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2008 } |
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2009 } |
| 0 | 2010 case CTRL_CLOSE_EVENT: |
| 2011 case CTRL_SHUTDOWN_EVENT: | |
| 2012 os::signal_raise(SIGTERM); | |
| 2013 return TRUE; | |
| 2014 break; | |
| 2015 default: | |
| 2016 break; | |
| 2017 } | |
| 2018 return FALSE; | |
| 2019 } | |
| 2020 | |
| 2021 /* | |
| 2022 * The following code is moved from os.cpp for making this | |
| 2023 * code platform specific, which it is by its very nature. | |
| 2024 */ | |
| 2025 | |
| 2026 // Return maximum OS signal used + 1 for internal use only | |
| 2027 // Used as exit signal for signal_thread | |
| 2028 int os::sigexitnum_pd(){ | |
| 2029 return NSIG; | |
| 2030 } | |
| 2031 | |
| 2032 // a counter for each possible signal value, including signal_thread exit signal | |
| 2033 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
|
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2034 static HANDLE sig_sem = NULL; |
| 0 | 2035 |
| 2036 void os::signal_init_pd() { | |
| 2037 // Initialize signal structures | |
| 2038 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
| 2039 | |
| 2040 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
| 2041 | |
| 2042 // Programs embedding the VM do not want it to attempt to receive | |
| 2043 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
| 2044 // shutdown hooks mechanism introduced in 1.3. For example, when | |
| 2045 // the VM is run as part of a Windows NT service (i.e., a servlet | |
| 2046 // engine in a web server), the correct behavior is for any console | |
| 2047 // control handler to return FALSE, not TRUE, because the OS's | |
| 2048 // "final" handler for such events allows the process to continue if | |
| 2049 // it is a service (while terminating it if it is not a service). | |
| 2050 // To make this behavior uniform and the mechanism simpler, we | |
| 2051 // completely disable the VM's usage of these console events if -Xrs | |
| 2052 // (=ReduceSignalUsage) is specified. This means, for example, that | |
| 2053 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
| 2054 // case. See bugs 4323062, 4345157, and related bugs. | |
| 2055 | |
| 2056 if (!ReduceSignalUsage) { | |
| 2057 // Add a CTRL-C handler | |
| 2058 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
| 2059 } | |
| 2060 } | |
| 2061 | |
| 2062 void os::signal_notify(int signal_number) { | |
| 2063 BOOL ret; | |
|
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2064 if (sig_sem != NULL) { |
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2065 Atomic::inc(&pending_signals[signal_number]); |
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2066 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); |
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2067 assert(ret != 0, "ReleaseSemaphore() failed"); |
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2068 } |
| 0 | 2069 } |
| 2070 | |
| 2071 static int check_pending_signals(bool wait_for_signal) { | |
| 2072 DWORD ret; | |
| 2073 while (true) { | |
| 2074 for (int i = 0; i < NSIG + 1; i++) { | |
| 2075 jint n = pending_signals[i]; | |
| 2076 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 2077 return i; | |
| 2078 } | |
| 2079 } | |
| 2080 if (!wait_for_signal) { | |
| 2081 return -1; | |
| 2082 } | |
| 2083 | |
| 2084 JavaThread *thread = JavaThread::current(); | |
| 2085 | |
| 2086 ThreadBlockInVM tbivm(thread); | |
| 2087 | |
| 2088 bool threadIsSuspended; | |
| 2089 do { | |
| 2090 thread->set_suspend_equivalent(); | |
| 2091 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 2092 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
| 2093 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
| 2094 | |
| 2095 // were we externally suspended while we were waiting? | |
| 2096 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 2097 if (threadIsSuspended) { | |
| 2098 // | |
| 2099 // The semaphore has been incremented, but while we were waiting | |
| 2100 // another thread suspended us. We don't want to continue running | |
| 2101 // while suspended because that would surprise the thread that | |
| 2102 // suspended us. | |
| 2103 // | |
| 2104 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 2105 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 2106 | |
| 2107 thread->java_suspend_self(); | |
| 2108 } | |
| 2109 } while (threadIsSuspended); | |
| 2110 } | |
| 2111 } | |
| 2112 | |
| 2113 int os::signal_lookup() { | |
| 2114 return check_pending_signals(false); | |
| 2115 } | |
| 2116 | |
| 2117 int os::signal_wait() { | |
| 2118 return check_pending_signals(true); | |
| 2119 } | |
| 2120 | |
| 2121 // Implicit OS exception handling | |
| 2122 | |
| 2123 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
| 2124 JavaThread* thread = JavaThread::current(); | |
| 2125 // Save pc in thread | |
| 2126 #ifdef _M_IA64 | |
| 7994 | 2127 // Do not blow up if no thread info available. |
| 2128 if (thread) { | |
| 2129 // Saving PRECISE pc (with slot information) in thread. | |
| 2130 uint64_t precise_pc = (uint64_t) exceptionInfo->ExceptionRecord->ExceptionAddress; | |
| 2131 // Convert precise PC into "Unix" format | |
| 2132 precise_pc = (precise_pc & 0xFFFFFFFFFFFFFFF0) | ((precise_pc & 0xF) >> 2); | |
| 2133 thread->set_saved_exception_pc((address)precise_pc); | |
| 2134 } | |
| 0 | 2135 // Set pc to handler |
| 2136 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
| 7994 | 2137 // Clear out psr.ri (= Restart Instruction) in order to continue |
| 2138 // at the beginning of the target bundle. | |
| 2139 exceptionInfo->ContextRecord->StIPSR &= 0xFFFFF9FFFFFFFFFF; | |
| 2140 assert(((DWORD64)handler & 0xF) == 0, "Target address must point to the beginning of a bundle!"); | |
| 0 | 2141 #elif _M_AMD64 |
| 7994 | 2142 // Do not blow up if no thread info available. |
| 2143 if (thread) { | |
| 2144 thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Rip); | |
| 2145 } | |
| 0 | 2146 // Set pc to handler |
| 2147 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
| 2148 #else | |
| 7994 | 2149 // Do not blow up if no thread info available. |
| 2150 if (thread) { | |
| 2151 thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Eip); | |
| 2152 } | |
| 0 | 2153 // Set pc to handler |
| 7994 | 2154 exceptionInfo->ContextRecord->Eip = (DWORD)(DWORD_PTR)handler; |
| 0 | 2155 #endif |
| 2156 | |
| 2157 // Continue the execution | |
| 2158 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2159 } | |
| 2160 | |
| 2161 | |
| 2162 // Used for PostMortemDump | |
| 2163 extern "C" void safepoints(); | |
| 2164 extern "C" void find(int x); | |
| 2165 extern "C" void events(); | |
| 2166 | |
| 2167 // According to Windows API documentation, an illegal instruction sequence should generate | |
| 2168 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
| 2169 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
| 2170 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
| 2171 | |
| 2172 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
| 2173 | |
| 2174 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
| 2175 // Once a system header becomes available, the "real" define should be | |
| 2176 // included or copied here. | |
| 2177 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
| 2178 | |
| 7994 | 2179 // Handle NAT Bit consumption on IA64. |
| 2180 #ifdef _M_IA64 | |
| 2181 #define EXCEPTION_REG_NAT_CONSUMPTION STATUS_REG_NAT_CONSUMPTION | |
| 2182 #endif | |
| 2183 | |
| 2184 // Windows Vista/2008 heap corruption check | |
| 2185 #define EXCEPTION_HEAP_CORRUPTION 0xC0000374 | |
| 2186 | |
| 0 | 2187 #define def_excpt(val) #val, val |
| 2188 | |
| 2189 struct siglabel { | |
| 2190 char *name; | |
| 2191 int number; | |
| 2192 }; | |
| 2193 | |
|
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2194 // All Visual C++ exceptions thrown from code generated by the Microsoft Visual |
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2195 // C++ compiler contain this error code. Because this is a compiler-generated |
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2196 // error, the code is not listed in the Win32 API header files. |
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2197 // The code is actually a cryptic mnemonic device, with the initial "E" |
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2198 // standing for "exception" and the final 3 bytes (0x6D7363) representing the |
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2199 // ASCII values of "msc". |
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2200 |
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2201 #define EXCEPTION_UNCAUGHT_CXX_EXCEPTION 0xE06D7363 |
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2202 |
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2203 |
| 0 | 2204 struct siglabel exceptlabels[] = { |
| 2205 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
| 2206 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
| 2207 def_excpt(EXCEPTION_BREAKPOINT), | |
| 2208 def_excpt(EXCEPTION_SINGLE_STEP), | |
| 2209 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
| 2210 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
| 2211 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
| 2212 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
| 2213 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
| 2214 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
| 2215 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
| 2216 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
| 2217 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
| 2218 def_excpt(EXCEPTION_INT_OVERFLOW), | |
| 2219 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
| 2220 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
| 2221 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
| 2222 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
| 2223 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
| 2224 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
| 2225 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
| 2226 def_excpt(EXCEPTION_GUARD_PAGE), | |
| 2227 def_excpt(EXCEPTION_INVALID_HANDLE), | |
|
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2228 def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION), |
| 7994 | 2229 def_excpt(EXCEPTION_HEAP_CORRUPTION), |
| 2230 #ifdef _M_IA64 | |
| 2231 def_excpt(EXCEPTION_REG_NAT_CONSUMPTION), | |
| 2232 #endif | |
| 0 | 2233 NULL, 0 |
| 2234 }; | |
| 2235 | |
| 2236 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
| 2237 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
| 2238 if (exceptlabels[i].number == exception_code) { | |
| 2239 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
| 2240 return buf; | |
| 2241 } | |
| 2242 } | |
| 2243 | |
| 2244 return NULL; | |
| 2245 } | |
| 2246 | |
| 2247 //----------------------------------------------------------------------------- | |
| 2248 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2249 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
| 2250 // (division by zero is handled explicitly) | |
| 2251 #ifdef _M_IA64 | |
| 2252 assert(0, "Fix Handle_IDiv_Exception"); | |
| 2253 #elif _M_AMD64 | |
| 2254 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2255 address pc = (address)ctx->Rip; | |
|
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2256 #ifdef GRAAL |
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2257 assert(pc[0] >= Assembler::REX && pc[0] <= Assembler::REX_WRXB && pc[1] == 0xF7 || pc[0] == 0xF7, "not an idiv opcode"); |
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2258 if (pc[0] == 0xF7) { |
|
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2259 // set correct result values and continue after idiv instruction |
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2260 ctx->Rip = (DWORD64)pc + 2; // idiv reg, reg is 2 bytes |
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2261 } else { |
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2262 ctx->Rip = (DWORD64)pc + 3; // REX idiv reg, reg is 3 bytes |
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2263 } |
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2264 // do not set ctx->Rax as it already contains the correct value (either 32 or 64 bit, depending on the operation) |
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2265 // this is the case because the exception only happens for -MinValue/-1 and -MinValue is always in rax because of the |
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2266 // idiv opcode (0xF7) |
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2267 #else |
| 0 | 2268 assert(pc[0] == 0xF7, "not an idiv opcode"); |
| 2269 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2270 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
| 2271 // set correct result values and continue after idiv instruction | |
| 2272 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2273 ctx->Rax = (DWORD)min_jint; // result | |
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2274 #endif // GRAAL |
| 0 | 2275 ctx->Rdx = (DWORD)0; // remainder |
| 2276 // Continue the execution | |
| 2277 #else | |
| 2278 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2279 address pc = (address)ctx->Eip; | |
| 2280 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2281 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2282 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
| 2283 // set correct result values and continue after idiv instruction | |
| 2284 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2285 ctx->Eax = (DWORD)min_jint; // result | |
| 2286 ctx->Edx = (DWORD)0; // remainder | |
| 2287 // Continue the execution | |
| 2288 #endif | |
| 2289 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2290 } | |
| 2291 | |
| 2292 #ifndef _WIN64 | |
| 2293 //----------------------------------------------------------------------------- | |
| 2294 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
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2295 // handle exception caused by native method modifying control word |
| 0 | 2296 PCONTEXT ctx = exceptionInfo->ContextRecord; |
| 2297 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2298 | |
| 2299 switch (exception_code) { | |
| 2300 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
| 2301 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
| 2302 case EXCEPTION_FLT_INEXACT_RESULT: | |
| 2303 case EXCEPTION_FLT_INVALID_OPERATION: | |
| 2304 case EXCEPTION_FLT_OVERFLOW: | |
| 2305 case EXCEPTION_FLT_STACK_CHECK: | |
| 2306 case EXCEPTION_FLT_UNDERFLOW: | |
| 2307 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
| 2308 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
| 2309 // Restore FPCW and mask out FLT exceptions | |
| 2310 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
| 2311 // Mask out pending FLT exceptions | |
| 2312 ctx->FloatSave.StatusWord &= 0xffffff00; | |
| 2313 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2314 } | |
| 2315 } | |
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2316 |
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2317 if (prev_uef_handler != NULL) { |
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2318 // We didn't handle this exception so pass it to the previous |
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2319 // UnhandledExceptionFilter. |
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2320 return (prev_uef_handler)(exceptionInfo); |
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2321 } |
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2322 |
| 0 | 2323 return EXCEPTION_CONTINUE_SEARCH; |
| 2324 } | |
| 2325 #else //_WIN64 | |
| 2326 /* | |
| 2327 On Windows, the mxcsr control bits are non-volatile across calls | |
| 2328 See also CR 6192333 | |
| 2329 If EXCEPTION_FLT_* happened after some native method modified | |
| 2330 mxcsr - it is not a jvm fault. | |
| 2331 However should we decide to restore of mxcsr after a faulty | |
| 2332 native method we can uncomment following code | |
| 2333 jint MxCsr = INITIAL_MXCSR; | |
| 2334 // we can't use StubRoutines::addr_mxcsr_std() | |
| 2335 // because in Win64 mxcsr is not saved there | |
| 2336 if (MxCsr != ctx->MxCsr) { | |
| 2337 ctx->MxCsr = MxCsr; | |
| 2338 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2339 } | |
| 2340 | |
| 2341 */ | |
| 17567 | 2342 #endif // _WIN64 |
| 2343 | |
| 0 | 2344 |
| 2345 static inline void report_error(Thread* t, DWORD exception_code, | |
| 2346 address addr, void* siginfo, void* context) { | |
| 2347 VMError err(t, exception_code, addr, siginfo, context); | |
| 2348 err.report_and_die(); | |
| 2349 | |
| 2350 // If UseOsErrorReporting, this will return here and save the error file | |
| 2351 // somewhere where we can find it in the minidump. | |
| 2352 } | |
| 2353 | |
| 2354 //----------------------------------------------------------------------------- | |
| 2355 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2356 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
| 2357 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2358 #ifdef _M_IA64 | |
| 7994 | 2359 // On Itanium, we need the "precise pc", which has the slot number coded |
| 2360 // into the least 4 bits: 0000=slot0, 0100=slot1, 1000=slot2 (Windows format). | |
| 2361 address pc = (address) exceptionInfo->ExceptionRecord->ExceptionAddress; | |
| 2362 // Convert the pc to "Unix format", which has the slot number coded | |
| 2363 // into the least 2 bits: 0000=slot0, 0001=slot1, 0010=slot2 | |
| 2364 // This is needed for IA64 because "relocation" / "implicit null check" / "poll instruction" | |
| 2365 // information is saved in the Unix format. | |
| 2366 address pc_unix_format = (address) ((((uint64_t)pc) & 0xFFFFFFFFFFFFFFF0) | ((((uint64_t)pc) & 0xF) >> 2)); | |
| 0 | 2367 #elif _M_AMD64 |
| 2368 address pc = (address) exceptionInfo->ContextRecord->Rip; | |
| 2369 #else | |
| 2370 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2371 #endif | |
| 2372 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
| 2373 | |
| 11127 | 2374 // Handle SafeFetch32 and SafeFetchN exceptions. |
| 2375 if (StubRoutines::is_safefetch_fault(pc)) { | |
| 2376 return Handle_Exception(exceptionInfo, StubRoutines::continuation_for_safefetch_fault(pc)); | |
| 2377 } | |
| 2378 | |
| 0 | 2379 #ifndef _WIN64 |
| 2380 // Execution protection violation - win32 running on AMD64 only | |
| 2381 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
| 2382 // This is safe to do because we have a new/unique ExceptionInformation | |
| 2383 // code for this condition. | |
| 2384 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2385 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2386 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
| 2387 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2388 | |
| 2389 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 2390 int page_size = os::vm_page_size(); | |
| 2391 | |
| 2392 // Make sure the pc and the faulting address are sane. | |
| 2393 // | |
| 2394 // If an instruction spans a page boundary, and the page containing | |
| 2395 // the beginning of the instruction is executable but the following | |
| 2396 // page is not, the pc and the faulting address might be slightly | |
| 2397 // different - we still want to unguard the 2nd page in this case. | |
| 2398 // | |
| 2399 // 15 bytes seems to be a (very) safe value for max instruction size. | |
| 2400 bool pc_is_near_addr = | |
| 2401 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
| 2402 bool instr_spans_page_boundary = | |
| 2403 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
| 2404 (intptr_t) page_size) > 0); | |
| 2405 | |
| 2406 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
| 2407 static volatile address last_addr = | |
| 2408 (address) os::non_memory_address_word(); | |
| 2409 | |
| 2410 // In conservative mode, don't unguard unless the address is in the VM | |
| 2411 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
| 2412 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
| 2413 | |
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2414 // Set memory to RWX and retry |
| 0 | 2415 address page_start = |
| 2416 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
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2417 bool res = os::protect_memory((char*) page_start, page_size, |
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2418 os::MEM_PROT_RWX); |
| 0 | 2419 |
| 2420 if (PrintMiscellaneous && Verbose) { | |
| 2421 char buf[256]; | |
| 2422 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
| 2423 "at " INTPTR_FORMAT | |
| 2424 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
| 2425 page_start, (res ? "success" : strerror(errno))); | |
| 2426 tty->print_raw_cr(buf); | |
| 2427 } | |
| 2428 | |
| 2429 // Set last_addr so if we fault again at the same address, we don't | |
| 2430 // end up in an endless loop. | |
| 2431 // | |
| 2432 // There are two potential complications here. Two threads trapping | |
| 2433 // at the same address at the same time could cause one of the | |
| 2434 // threads to think it already unguarded, and abort the VM. Likely | |
| 2435 // very rare. | |
| 2436 // | |
| 2437 // The other race involves two threads alternately trapping at | |
| 2438 // different addresses and failing to unguard the page, resulting in | |
| 2439 // an endless loop. This condition is probably even more unlikely | |
| 2440 // than the first. | |
| 2441 // | |
| 2442 // Although both cases could be avoided by using locks or thread | |
| 2443 // local last_addr, these solutions are unnecessary complication: | |
| 2444 // this handler is a best-effort safety net, not a complete solution. | |
| 2445 // It is disabled by default and should only be used as a workaround | |
| 2446 // in case we missed any no-execute-unsafe VM code. | |
| 2447 | |
| 2448 last_addr = addr; | |
| 2449 | |
| 2450 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2451 } | |
| 2452 } | |
| 2453 | |
| 2454 // Last unguard failed or not unguarding | |
| 2455 tty->print_raw_cr("Execution protection violation"); | |
| 2456 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
| 2457 exceptionInfo->ContextRecord); | |
| 2458 return EXCEPTION_CONTINUE_SEARCH; | |
| 2459 } | |
| 2460 } | |
| 2461 #endif // _WIN64 | |
| 2462 | |
| 2463 // Check to see if we caught the safepoint code in the | |
| 2464 // process of write protecting the memory serialization page. | |
| 2465 // It write enables the page immediately after protecting it | |
| 2466 // so just return. | |
| 2467 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 2468 JavaThread* thread = (JavaThread*) t; | |
| 2469 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2470 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2471 if ( os::is_memory_serialize_page(thread, addr) ) { | |
| 2472 // Block current thread until the memory serialize page permission restored. | |
| 2473 os::block_on_serialize_page_trap(); | |
| 2474 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2475 } | |
| 2476 } | |
| 2477 | |
|
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17716
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changeset
|
2478 if ((exception_code == EXCEPTION_ACCESS_VIOLATION) && |
|
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|
2479 VM_Version::is_cpuinfo_segv_addr(pc)) { |
|
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17716
diff
changeset
|
2480 // Verify that OS save/restore AVX registers. |
|
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|
2481 return Handle_Exception(exceptionInfo, VM_Version::cpuinfo_cont_addr()); |
|
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|
2482 } |
|
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|
2483 |
| 0 | 2484 if (t != NULL && t->is_Java_thread()) { |
| 2485 JavaThread* thread = (JavaThread*) t; | |
| 2486 bool in_java = thread->thread_state() == _thread_in_Java; | |
| 2487 | |
| 2488 // Handle potential stack overflows up front. | |
| 2489 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
| 2490 if (os::uses_stack_guard_pages()) { | |
| 2491 #ifdef _M_IA64 | |
| 7994 | 2492 // Use guard page for register stack. |
| 0 | 2493 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; |
| 2494 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 7994 | 2495 // Check for a register stack overflow on Itanium |
| 2496 if (thread->addr_inside_register_stack_red_zone(addr)) { | |
| 2497 // Fatal red zone violation happens if the Java program | |
| 2498 // catches a StackOverflow error and does so much processing | |
| 2499 // that it runs beyond the unprotected yellow guard zone. As | |
| 2500 // a result, we are out of here. | |
| 2501 fatal("ERROR: Unrecoverable stack overflow happened. JVM will exit."); | |
| 2502 } else if(thread->addr_inside_register_stack(addr)) { | |
| 2503 // Disable the yellow zone which sets the state that | |
| 2504 // we've got a stack overflow problem. | |
| 2505 if (thread->stack_yellow_zone_enabled()) { | |
| 2506 thread->disable_stack_yellow_zone(); | |
| 2507 } | |
| 2508 // Give us some room to process the exception. | |
| 2509 thread->disable_register_stack_guard(); | |
| 2510 // Tracing with +Verbose. | |
| 2511 if (Verbose) { | |
| 2512 tty->print_cr("SOF Compiled Register Stack overflow at " INTPTR_FORMAT " (SIGSEGV)", pc); | |
| 2513 tty->print_cr("Register Stack access at " INTPTR_FORMAT, addr); | |
| 2514 tty->print_cr("Register Stack base " INTPTR_FORMAT, thread->register_stack_base()); | |
| 2515 tty->print_cr("Register Stack [" INTPTR_FORMAT "," INTPTR_FORMAT "]", | |
| 2516 thread->register_stack_base(), | |
| 2517 thread->register_stack_base() + thread->stack_size()); | |
| 2518 } | |
| 2519 | |
| 2520 // Reguard the permanent register stack red zone just to be sure. | |
| 2521 // We saw Windows silently disabling this without telling us. | |
| 2522 thread->enable_register_stack_red_zone(); | |
| 2523 | |
| 2524 return Handle_Exception(exceptionInfo, | |
| 2525 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 0 | 2526 } |
| 2527 #endif | |
| 2528 if (thread->stack_yellow_zone_enabled()) { | |
| 2529 // Yellow zone violation. The o/s has unprotected the first yellow | |
| 2530 // zone page for us. Note: must call disable_stack_yellow_zone to | |
| 2531 // update the enabled status, even if the zone contains only one page. | |
| 2532 thread->disable_stack_yellow_zone(); | |
| 2533 // If not in java code, return and hope for the best. | |
| 2534 return in_java ? Handle_Exception(exceptionInfo, | |
| 2535 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2536 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2537 } else { | |
| 2538 // Fatal red zone violation. | |
| 2539 thread->disable_stack_red_zone(); | |
| 2540 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
| 2541 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2542 exceptionInfo->ContextRecord); | |
| 2543 return EXCEPTION_CONTINUE_SEARCH; | |
| 2544 } | |
| 2545 } else if (in_java) { | |
| 2546 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
| 2547 // a one-time-only guard page, which it has released to us. The next | |
| 2548 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
| 2549 return Handle_Exception(exceptionInfo, | |
| 2550 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2551 } else { | |
| 2552 // Can only return and hope for the best. Further stack growth will | |
| 2553 // result in an ACCESS_VIOLATION. | |
| 2554 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2555 } | |
| 2556 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2557 // Either stack overflow or null pointer exception. | |
| 2558 if (in_java) { | |
| 2559 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2560 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2561 address stack_end = thread->stack_base() - thread->stack_size(); | |
| 2562 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
| 2563 // Stack overflow. | |
| 2564 assert(!os::uses_stack_guard_pages(), | |
| 2565 "should be caught by red zone code above."); | |
| 2566 return Handle_Exception(exceptionInfo, | |
| 2567 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2568 } | |
| 2569 // | |
| 2570 // Check for safepoint polling and implicit null | |
| 2571 // We only expect null pointers in the stubs (vtable) | |
| 2572 // the rest are checked explicitly now. | |
| 2573 // | |
| 2574 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2575 if (cb != NULL) { | |
| 2576 if (os::is_poll_address(addr)) { | |
| 2577 address stub = SharedRuntime::get_poll_stub(pc); | |
| 2578 return Handle_Exception(exceptionInfo, stub); | |
| 2579 } | |
| 2580 } | |
| 2581 { | |
| 2582 #ifdef _WIN64 | |
| 2583 // | |
| 2584 // If it's a legal stack address map the entire region in | |
| 2585 // | |
| 2586 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2587 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2588 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
| 2589 addr = (address)((uintptr_t)addr & | |
| 2590 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
| 656 | 2591 os::commit_memory((char *)addr, thread->stack_base() - addr, |
|
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10405
diff
changeset
|
2592 !ExecMem); |
| 0 | 2593 return EXCEPTION_CONTINUE_EXECUTION; |
| 2594 } | |
| 2595 else | |
| 2596 #endif | |
| 2597 { | |
| 2598 // Null pointer exception. | |
| 2599 #ifdef _M_IA64 | |
| 7994 | 2600 // Process implicit null checks in compiled code. Note: Implicit null checks |
| 2601 // can happen even if "ImplicitNullChecks" is disabled, e.g. in vtable stubs. | |
| 2602 if (CodeCache::contains((void*) pc_unix_format) && !MacroAssembler::needs_explicit_null_check((intptr_t) addr)) { | |
| 2603 CodeBlob *cb = CodeCache::find_blob_unsafe(pc_unix_format); | |
| 2604 // Handle implicit null check in UEP method entry | |
| 2605 if (cb && (cb->is_frame_complete_at(pc) || | |
| 2606 (cb->is_nmethod() && ((nmethod *)cb)->inlinecache_check_contains(pc)))) { | |
| 2607 if (Verbose) { | |
| 2608 intptr_t *bundle_start = (intptr_t*) ((intptr_t) pc_unix_format & 0xFFFFFFFFFFFFFFF0); | |
| 2609 tty->print_cr("trap: null_check at " INTPTR_FORMAT " (SIGSEGV)", pc_unix_format); | |
| 2610 tty->print_cr(" to addr " INTPTR_FORMAT, addr); | |
| 2611 tty->print_cr(" bundle is " INTPTR_FORMAT " (high), " INTPTR_FORMAT " (low)", | |
| 2612 *(bundle_start + 1), *bundle_start); | |
| 0 | 2613 } |
| 2614 return Handle_Exception(exceptionInfo, | |
| 7994 | 2615 SharedRuntime::continuation_for_implicit_exception(thread, pc_unix_format, SharedRuntime::IMPLICIT_NULL)); |
| 0 | 2616 } |
| 7994 | 2617 } |
| 2618 | |
| 2619 // Implicit null checks were processed above. Hence, we should not reach | |
| 2620 // here in the usual case => die! | |
| 2621 if (Verbose) tty->print_raw_cr("Access violation, possible null pointer exception"); | |
| 0 | 2622 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, |
| 2623 exceptionInfo->ContextRecord); | |
| 2624 return EXCEPTION_CONTINUE_SEARCH; | |
| 7994 | 2625 |
| 2626 #else // !IA64 | |
| 0 | 2627 |
| 2628 // Windows 98 reports faulting addresses incorrectly | |
| 2629 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
| 2630 !os::win32::is_nt()) { | |
|
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diff
changeset
|
2631 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
|
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6739363: Xcheck jni doesn't check native function arguments
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389
diff
changeset
|
2632 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2633 } |
| 2634 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2635 exceptionInfo->ContextRecord); | |
| 2636 return EXCEPTION_CONTINUE_SEARCH; | |
| 2637 #endif | |
| 2638 } | |
| 2639 } | |
| 2640 } | |
| 2641 | |
| 2642 #ifdef _WIN64 | |
| 2643 // Special care for fast JNI field accessors. | |
| 2644 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
| 2645 // in and the heap gets shrunk before the field access. | |
| 2646 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2647 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2648 if (addr != (address)-1) { | |
| 2649 return Handle_Exception(exceptionInfo, addr); | |
| 2650 } | |
| 2651 } | |
| 2652 #endif | |
| 2653 | |
| 2654 // Stack overflow or null pointer exception in native code. | |
| 2655 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2656 exceptionInfo->ContextRecord); | |
| 2657 return EXCEPTION_CONTINUE_SEARCH; | |
| 7994 | 2658 } // /EXCEPTION_ACCESS_VIOLATION |
| 2659 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
| 2660 #if defined _M_IA64 | |
| 2661 else if ((exception_code == EXCEPTION_ILLEGAL_INSTRUCTION || | |
| 2662 exception_code == EXCEPTION_ILLEGAL_INSTRUCTION_2)) { | |
| 2663 M37 handle_wrong_method_break(0, NativeJump::HANDLE_WRONG_METHOD, PR0); | |
| 2664 | |
| 2665 // Compiled method patched to be non entrant? Following conditions must apply: | |
| 2666 // 1. must be first instruction in bundle | |
| 2667 // 2. must be a break instruction with appropriate code | |
| 2668 if((((uint64_t) pc & 0x0F) == 0) && | |
| 2669 (((IPF_Bundle*) pc)->get_slot0() == handle_wrong_method_break.bits())) { | |
| 2670 return Handle_Exception(exceptionInfo, | |
| 2671 (address)SharedRuntime::get_handle_wrong_method_stub()); | |
| 2672 } | |
| 2673 } // /EXCEPTION_ILLEGAL_INSTRUCTION | |
| 2674 #endif | |
| 2675 | |
| 0 | 2676 |
| 2677 if (in_java) { | |
| 2678 switch (exception_code) { | |
| 2679 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
| 2680 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
| 2681 | |
| 2682 case EXCEPTION_INT_OVERFLOW: | |
| 2683 return Handle_IDiv_Exception(exceptionInfo); | |
| 2684 | |
| 2685 } // switch | |
| 2686 } | |
| 2687 #ifndef _WIN64 | |
|
2068
1e637defdda6
6961186: Better VM handling of unexpected exceptions from application native code
zgu
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diff
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|
2688 if (((thread->thread_state() == _thread_in_Java) || |
|
1e637defdda6
6961186: Better VM handling of unexpected exceptions from application native code
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2023
diff
changeset
|
2689 (thread->thread_state() == _thread_in_native)) && |
|
1e637defdda6
6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents:
2023
diff
changeset
|
2690 exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION) |
| 0 | 2691 { |
| 2692 LONG result=Handle_FLT_Exception(exceptionInfo); | |
| 2693 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
| 2694 } | |
| 2695 #endif //_WIN64 | |
| 2696 } | |
| 2697 | |
| 2698 if (exception_code != EXCEPTION_BREAKPOINT) { | |
| 2699 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2700 exceptionInfo->ContextRecord); | |
| 2701 } | |
| 2702 return EXCEPTION_CONTINUE_SEARCH; | |
| 2703 } | |
| 2704 | |
| 2705 #ifndef _WIN64 | |
| 2706 // Special care for fast JNI accessors. | |
| 2707 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
| 2708 // the heap gets shrunk before the field access. | |
| 2709 // Need to install our own structured exception handler since native code may | |
| 2710 // install its own. | |
| 2711 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2712 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2713 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2714 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2715 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2716 if (addr != (address)-1) { | |
| 2717 return Handle_Exception(exceptionInfo, addr); | |
| 2718 } | |
| 2719 } | |
| 2720 return EXCEPTION_CONTINUE_SEARCH; | |
| 2721 } | |
| 2722 | |
| 2723 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
| 2724 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
| 2725 __try { \ | |
| 2726 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
| 2727 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
| 2728 } \ | |
| 2729 return 0; \ | |
| 2730 } | |
| 2731 | |
| 2732 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
| 2733 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
| 2734 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
| 2735 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
| 2736 DEFINE_FAST_GETFIELD(jint, int, Int) | |
| 2737 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
| 2738 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
| 2739 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
| 2740 | |
| 2741 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
| 2742 switch (type) { | |
| 2743 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
| 2744 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
| 2745 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
| 2746 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
| 2747 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
| 2748 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
| 2749 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
| 2750 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
| 2751 default: ShouldNotReachHere(); | |
| 2752 } | |
| 2753 return (address)-1; | |
| 2754 } | |
| 2755 #endif | |
| 2756 | |
|
11092
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diff
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|
2757 void os::win32::call_test_func_with_wrapper(void (*funcPtr)(void)) { |
|
59b052799158
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diff
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|
2758 // Install a win32 structured exception handler around the test |
|
59b052799158
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diff
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|
2759 // function call so the VM can generate an error dump if needed. |
|
59b052799158
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10986
diff
changeset
|
2760 __try { |
|
59b052799158
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diff
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|
2761 (*funcPtr)(); |
|
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diff
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|
2762 } __except(topLevelExceptionFilter( |
|
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|
2763 (_EXCEPTION_POINTERS*)_exception_info())) { |
|
59b052799158
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parents:
10986
diff
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|
2764 // Nothing to do. |
|
59b052799158
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diff
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|
2765 } |
|
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diff
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|
2766 } |
|
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|
2767 |
| 0 | 2768 // Virtual Memory |
| 2769 | |
| 2770 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
| 2771 int os::vm_allocation_granularity() { | |
| 2772 return os::win32::vm_allocation_granularity(); | |
| 2773 } | |
| 2774 | |
| 2775 // Windows large page support is available on Windows 2003. In order to use | |
| 2776 // large page memory, the administrator must first assign additional privilege | |
| 2777 // to the user: | |
| 2778 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
| 2779 // + select Local Policies -> User Rights Assignment | |
| 2780 // + double click "Lock pages in memory", add users and/or groups | |
| 2781 // + reboot | |
| 2782 // Note the above steps are needed for administrator as well, as administrators | |
| 2783 // by default do not have the privilege to lock pages in memory. | |
| 2784 // | |
| 2785 // Note about Windows 2003: although the API supports committing large page | |
| 2786 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
| 2787 // scenario, I found through experiment it only uses large page if the entire | |
| 2788 // memory region is reserved and committed in a single VirtualAlloc() call. | |
| 2789 // This makes Windows large page support more or less like Solaris ISM, in | |
| 2790 // that the entire heap must be committed upfront. This probably will change | |
| 2791 // in the future, if so the code below needs to be revisited. | |
| 2792 | |
| 2793 #ifndef MEM_LARGE_PAGES | |
| 2794 #define MEM_LARGE_PAGES 0x20000000 | |
| 2795 #endif | |
| 2796 | |
| 2797 static HANDLE _hProcess; | |
| 2798 static HANDLE _hToken; | |
| 2799 | |
| 3885 | 2800 // Container for NUMA node list info |
| 2801 class NUMANodeListHolder { | |
| 2802 private: | |
| 2803 int *_numa_used_node_list; // allocated below | |
| 2804 int _numa_used_node_count; | |
| 2805 | |
| 2806 void free_node_list() { | |
| 2807 if (_numa_used_node_list != NULL) { | |
| 6197 | 2808 FREE_C_HEAP_ARRAY(int, _numa_used_node_list, mtInternal); |
| 3885 | 2809 } |
| 2810 } | |
| 2811 | |
| 2812 public: | |
| 2813 NUMANodeListHolder() { | |
| 2814 _numa_used_node_count = 0; | |
| 2815 _numa_used_node_list = NULL; | |
| 2816 // do rest of initialization in build routine (after function pointers are set up) | |
| 2817 } | |
| 2818 | |
| 2819 ~NUMANodeListHolder() { | |
| 2820 free_node_list(); | |
| 2821 } | |
| 2822 | |
| 2823 bool build() { | |
| 2824 DWORD_PTR proc_aff_mask; | |
| 2825 DWORD_PTR sys_aff_mask; | |
| 2826 if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false; | |
| 2827 ULONG highest_node_number; | |
| 2828 if (!os::Kernel32Dll::GetNumaHighestNodeNumber(&highest_node_number)) return false; | |
| 2829 free_node_list(); | |
| 6197 | 2830 _numa_used_node_list = NEW_C_HEAP_ARRAY(int, highest_node_number + 1, mtInternal); |
| 3885 | 2831 for (unsigned int i = 0; i <= highest_node_number; i++) { |
| 2832 ULONGLONG proc_mask_numa_node; | |
| 2833 if (!os::Kernel32Dll::GetNumaNodeProcessorMask(i, &proc_mask_numa_node)) return false; | |
| 2834 if ((proc_aff_mask & proc_mask_numa_node)!=0) { | |
| 2835 _numa_used_node_list[_numa_used_node_count++] = i; | |
| 2836 } | |
| 2837 } | |
| 2838 return (_numa_used_node_count > 1); | |
| 2839 } | |
| 2840 | |
| 2841 int get_count() {return _numa_used_node_count;} | |
| 2842 int get_node_list_entry(int n) { | |
| 2843 // for indexes out of range, returns -1 | |
| 2844 return (n < _numa_used_node_count ? _numa_used_node_list[n] : -1); | |
| 2845 } | |
| 2846 | |
| 2847 } numa_node_list_holder; | |
| 2848 | |
| 2849 | |
| 2850 | |
| 0 | 2851 static size_t _large_page_size = 0; |
| 2852 | |
| 2853 static bool resolve_functions_for_large_page_init() { | |
|
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2854 return os::Kernel32Dll::GetLargePageMinimumAvailable() && |
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|
2855 os::Advapi32Dll::AdvapiAvailable(); |
| 0 | 2856 } |
| 2857 | |
| 2858 static bool request_lock_memory_privilege() { | |
| 2859 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
| 2860 os::current_process_id()); | |
| 2861 | |
| 2862 LUID luid; | |
| 2863 if (_hProcess != NULL && | |
|
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2864 os::Advapi32Dll::OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && |
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2865 os::Advapi32Dll::LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { |
| 0 | 2866 |
| 2867 TOKEN_PRIVILEGES tp; | |
| 2868 tp.PrivilegeCount = 1; | |
| 2869 tp.Privileges[0].Luid = luid; | |
| 2870 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
| 2871 | |
| 2872 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
| 2873 // privilege. Check GetLastError() too. See MSDN document. | |
|
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2874 if (os::Advapi32Dll::AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && |
| 0 | 2875 (GetLastError() == ERROR_SUCCESS)) { |
| 2876 return true; | |
| 2877 } | |
| 2878 } | |
| 2879 | |
| 2880 return false; | |
| 2881 } | |
| 2882 | |
| 2883 static void cleanup_after_large_page_init() { | |
| 2884 if (_hProcess) CloseHandle(_hProcess); | |
| 2885 _hProcess = NULL; | |
| 2886 if (_hToken) CloseHandle(_hToken); | |
| 2887 _hToken = NULL; | |
| 2888 } | |
| 2889 | |
| 3885 | 2890 static bool numa_interleaving_init() { |
| 2891 bool success = false; | |
| 2892 bool use_numa_interleaving_specified = !FLAG_IS_DEFAULT(UseNUMAInterleaving); | |
| 2893 | |
|
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2894 // print a warning if UseNUMAInterleaving flag is specified on command line |
|
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|
2895 bool warn_on_failure = use_numa_interleaving_specified; |
| 3885 | 2896 # define WARN(msg) if (warn_on_failure) { warning(msg); } |
| 2897 | |
| 2898 // NUMAInterleaveGranularity cannot be less than vm_allocation_granularity (or _large_page_size if using large pages) | |
| 2899 size_t min_interleave_granularity = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
| 2900 NUMAInterleaveGranularity = align_size_up(NUMAInterleaveGranularity, min_interleave_granularity); | |
| 2901 | |
| 2902 if (os::Kernel32Dll::NumaCallsAvailable()) { | |
| 2903 if (numa_node_list_holder.build()) { | |
| 2904 if (PrintMiscellaneous && Verbose) { | |
|
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|
2905 tty->print("NUMA UsedNodeCount=%d, namely ", numa_node_list_holder.get_count()); |
| 3885 | 2906 for (int i = 0; i < numa_node_list_holder.get_count(); i++) { |
| 2907 tty->print("%d ", numa_node_list_holder.get_node_list_entry(i)); | |
| 2908 } | |
| 2909 tty->print("\n"); | |
| 2910 } | |
| 2911 success = true; | |
| 2912 } else { | |
| 2913 WARN("Process does not cover multiple NUMA nodes."); | |
| 2914 } | |
| 2915 } else { | |
| 2916 WARN("NUMA Interleaving is not supported by the operating system."); | |
| 2917 } | |
| 2918 if (!success) { | |
| 2919 if (use_numa_interleaving_specified) WARN("...Ignoring UseNUMAInterleaving flag."); | |
| 2920 } | |
| 2921 return success; | |
| 2922 #undef WARN | |
| 2923 } | |
| 2924 | |
| 2925 // this routine is used whenever we need to reserve a contiguous VA range | |
| 2926 // but we need to make separate VirtualAlloc calls for each piece of the range | |
| 2927 // Reasons for doing this: | |
| 2928 // * UseLargePagesIndividualAllocation was set (normally only needed on WS2003 but possible to be set otherwise) | |
| 2929 // * UseNUMAInterleaving requires a separate node for each piece | |
| 2930 static char* allocate_pages_individually(size_t bytes, char* addr, DWORD flags, DWORD prot, | |
| 2931 bool should_inject_error=false) { | |
| 2932 char * p_buf; | |
| 2933 // note: at setup time we guaranteed that NUMAInterleaveGranularity was aligned up to a page size | |
| 2934 size_t page_size = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
| 2935 size_t chunk_size = UseNUMAInterleaving ? NUMAInterleaveGranularity : page_size; | |
| 2936 | |
| 2937 // first reserve enough address space in advance since we want to be | |
| 2938 // able to break a single contiguous virtual address range into multiple | |
| 2939 // large page commits but WS2003 does not allow reserving large page space | |
| 2940 // so we just use 4K pages for reserve, this gives us a legal contiguous | |
| 2941 // address space. then we will deallocate that reservation, and re alloc | |
| 2942 // using large pages | |
| 2943 const size_t size_of_reserve = bytes + chunk_size; | |
| 2944 if (bytes > size_of_reserve) { | |
| 2945 // Overflowed. | |
| 2946 return NULL; | |
| 2947 } | |
| 2948 p_buf = (char *) VirtualAlloc(addr, | |
| 2949 size_of_reserve, // size of Reserve | |
| 2950 MEM_RESERVE, | |
| 2951 PAGE_READWRITE); | |
| 2952 // If reservation failed, return NULL | |
| 2953 if (p_buf == NULL) return NULL; | |
| 20360 | 2954 MemTracker::record_virtual_memory_reserve((address)p_buf, size_of_reserve, CALLER_PC); |
| 3885 | 2955 os::release_memory(p_buf, bytes + chunk_size); |
| 2956 | |
| 2957 // we still need to round up to a page boundary (in case we are using large pages) | |
| 2958 // but not to a chunk boundary (in case InterleavingGranularity doesn't align with page size) | |
| 2959 // instead we handle this in the bytes_to_rq computation below | |
| 2960 p_buf = (char *) align_size_up((size_t)p_buf, page_size); | |
| 2961 | |
| 2962 // now go through and allocate one chunk at a time until all bytes are | |
| 2963 // allocated | |
| 2964 size_t bytes_remaining = bytes; | |
| 2965 // An overflow of align_size_up() would have been caught above | |
| 2966 // in the calculation of size_of_reserve. | |
| 2967 char * next_alloc_addr = p_buf; | |
| 2968 HANDLE hProc = GetCurrentProcess(); | |
| 2969 | |
| 2970 #ifdef ASSERT | |
| 2971 // Variable for the failure injection | |
| 2972 long ran_num = os::random(); | |
| 2973 size_t fail_after = ran_num % bytes; | |
| 2974 #endif | |
| 2975 | |
| 2976 int count=0; | |
| 2977 while (bytes_remaining) { | |
| 2978 // select bytes_to_rq to get to the next chunk_size boundary | |
| 2979 | |
| 2980 size_t bytes_to_rq = MIN2(bytes_remaining, chunk_size - ((size_t)next_alloc_addr % chunk_size)); | |
| 2981 // Note allocate and commit | |
| 2982 char * p_new; | |
| 2983 | |
| 2984 #ifdef ASSERT | |
| 2985 bool inject_error_now = should_inject_error && (bytes_remaining <= fail_after); | |
| 2986 #else | |
| 2987 const bool inject_error_now = false; | |
| 2988 #endif | |
| 2989 | |
| 2990 if (inject_error_now) { | |
| 2991 p_new = NULL; | |
| 2992 } else { | |
| 2993 if (!UseNUMAInterleaving) { | |
| 2994 p_new = (char *) VirtualAlloc(next_alloc_addr, | |
| 2995 bytes_to_rq, | |
| 2996 flags, | |
| 2997 prot); | |
| 2998 } else { | |
| 2999 // get the next node to use from the used_node_list | |
|
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3000 assert(numa_node_list_holder.get_count() > 0, "Multiple NUMA nodes expected"); |
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|
3001 DWORD node = numa_node_list_holder.get_node_list_entry(count % numa_node_list_holder.get_count()); |
| 3885 | 3002 p_new = (char *)os::Kernel32Dll::VirtualAllocExNuma(hProc, |
| 3003 next_alloc_addr, | |
| 3004 bytes_to_rq, | |
| 3005 flags, | |
| 3006 prot, | |
| 3007 node); | |
| 3008 } | |
| 3009 } | |
| 3010 | |
| 3011 if (p_new == NULL) { | |
| 3012 // Free any allocated pages | |
| 3013 if (next_alloc_addr > p_buf) { | |
| 3014 // Some memory was committed so release it. | |
| 3015 size_t bytes_to_release = bytes - bytes_remaining; | |
|
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3016 // NMT has yet to record any individual blocks, so it |
|
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3017 // need to create a dummy 'reserve' record to match |
|
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|
3018 // the release. |
|
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|
3019 MemTracker::record_virtual_memory_reserve((address)p_buf, |
| 20360 | 3020 bytes_to_release, CALLER_PC); |
| 3885 | 3021 os::release_memory(p_buf, bytes_to_release); |
| 3022 } | |
| 3023 #ifdef ASSERT | |
| 3024 if (should_inject_error) { | |
| 3025 if (TracePageSizes && Verbose) { | |
| 3026 tty->print_cr("Reserving pages individually failed."); | |
| 3027 } | |
| 3028 } | |
| 3029 #endif | |
| 3030 return NULL; | |
| 3031 } | |
|
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|
3032 |
| 3885 | 3033 bytes_remaining -= bytes_to_rq; |
| 3034 next_alloc_addr += bytes_to_rq; | |
| 3035 count++; | |
| 3036 } | |
|
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|
3037 // Although the memory is allocated individually, it is returned as one. |
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|
3038 // NMT records it as one block. |
|
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|
3039 if ((flags & MEM_COMMIT) != 0) { |
| 20360 | 3040 MemTracker::record_virtual_memory_reserve_and_commit((address)p_buf, bytes, CALLER_PC); |
|
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|
3041 } else { |
| 20360 | 3042 MemTracker::record_virtual_memory_reserve((address)p_buf, bytes, CALLER_PC); |
|
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|
3043 } |
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|
3044 |
| 3885 | 3045 // made it this far, success |
| 3046 return p_buf; | |
| 3047 } | |
| 3048 | |
| 3049 | |
| 3050 | |
|
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3051 void os::large_page_init() { |
|
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|
3052 if (!UseLargePages) return; |
| 0 | 3053 |
| 3054 // print a warning if any large page related flag is specified on command line | |
| 3055 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
| 3056 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
| 3057 bool success = false; | |
| 3058 | |
| 3059 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
| 3060 if (resolve_functions_for_large_page_init()) { | |
| 3061 if (request_lock_memory_privilege()) { | |
|
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|
3062 size_t s = os::Kernel32Dll::GetLargePageMinimum(); |
| 0 | 3063 if (s) { |
| 3064 #if defined(IA32) || defined(AMD64) | |
| 3065 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
| 3066 WARN("JVM cannot use large pages bigger than 4mb."); | |
| 3067 } else { | |
| 3068 #endif | |
| 3069 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
| 3070 _large_page_size = LargePageSizeInBytes; | |
| 3071 } else { | |
| 3072 _large_page_size = s; | |
| 3073 } | |
| 3074 success = true; | |
| 3075 #if defined(IA32) || defined(AMD64) | |
| 3076 } | |
| 3077 #endif | |
| 3078 } else { | |
| 3079 WARN("Large page is not supported by the processor."); | |
| 3080 } | |
| 3081 } else { | |
| 3082 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
| 3083 } | |
| 3084 } else { | |
| 3085 WARN("Large page is not supported by the operating system."); | |
| 3086 } | |
| 3087 #undef WARN | |
| 3088 | |
| 3089 const size_t default_page_size = (size_t) vm_page_size(); | |
| 3090 if (success && _large_page_size > default_page_size) { | |
| 3091 _page_sizes[0] = _large_page_size; | |
| 3092 _page_sizes[1] = default_page_size; | |
| 3093 _page_sizes[2] = 0; | |
| 3094 } | |
| 3095 | |
| 3096 cleanup_after_large_page_init(); | |
|
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|
3097 UseLargePages = success; |
| 0 | 3098 } |
| 3099 | |
| 3100 // On win32, one cannot release just a part of reserved memory, it's an | |
| 3101 // all or nothing deal. When we split a reservation, we must break the | |
| 3102 // reservation into two reservations. | |
| 6197 | 3103 void os::pd_split_reserved_memory(char *base, size_t size, size_t split, |
| 0 | 3104 bool realloc) { |
| 3105 if (size > 0) { | |
| 3106 release_memory(base, size); | |
| 3107 if (realloc) { | |
| 3108 reserve_memory(split, base); | |
| 3109 } | |
| 3110 if (size != split) { | |
| 3111 reserve_memory(size - split, base + split); | |
| 3112 } | |
| 3113 } | |
| 3114 } | |
| 3115 | |
|
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3116 // Multiple threads can race in this code but it's not possible to unmap small sections of |
|
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|
3117 // virtual space to get requested alignment, like posix-like os's. |
|
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|
3118 // Windows prevents multiple thread from remapping over each other so this loop is thread-safe. |
|
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|
3119 char* os::reserve_memory_aligned(size_t size, size_t alignment) { |
|
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|
3120 assert((alignment & (os::vm_allocation_granularity() - 1)) == 0, |
|
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|
3121 "Alignment must be a multiple of allocation granularity (page size)"); |
|
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|
3122 assert((size & (alignment -1)) == 0, "size must be 'alignment' aligned"); |
|
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|
3123 |
|
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|
3124 size_t extra_size = size + alignment; |
|
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|
3125 assert(extra_size >= size, "overflow, size is too large to allow alignment"); |
|
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|
3126 |
|
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|
3127 char* aligned_base = NULL; |
|
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|
3128 |
|
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|
3129 do { |
|
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|
3130 char* extra_base = os::reserve_memory(extra_size, NULL, alignment); |
|
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|
3131 if (extra_base == NULL) { |
|
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|
3132 return NULL; |
|
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|
3133 } |
|
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|
3134 // Do manual alignment |
|
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|
3135 aligned_base = (char*) align_size_up((uintptr_t) extra_base, alignment); |
|
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|
3136 |
|
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|
3137 os::release_memory(extra_base, extra_size); |
|
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|
3138 |
|
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|
3139 aligned_base = os::reserve_memory(size, aligned_base); |
|
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|
3140 |
|
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|
3141 } while (aligned_base == NULL); |
|
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|
3142 |
|
730cc4ddd550
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|
3143 return aligned_base; |
|
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|
3144 } |
|
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|
3145 |
| 6197 | 3146 char* os::pd_reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { |
| 0 | 3147 assert((size_t)addr % os::vm_allocation_granularity() == 0, |
| 3148 "reserve alignment"); | |
| 3149 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
| 3885 | 3150 char* res; |
| 3151 // note that if UseLargePages is on, all the areas that require interleaving | |
| 3152 // will go thru reserve_memory_special rather than thru here. | |
| 3153 bool use_individual = (UseNUMAInterleaving && !UseLargePages); | |
| 3154 if (!use_individual) { | |
| 3155 res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); | |
| 3156 } else { | |
| 3157 elapsedTimer reserveTimer; | |
| 3158 if( Verbose && PrintMiscellaneous ) reserveTimer.start(); | |
| 3159 // in numa interleaving, we have to allocate pages individually | |
| 3160 // (well really chunks of NUMAInterleaveGranularity size) | |
| 3161 res = allocate_pages_individually(bytes, addr, MEM_RESERVE, PAGE_READWRITE); | |
| 3162 if (res == NULL) { | |
| 3163 warning("NUMA page allocation failed"); | |
| 3164 } | |
| 3165 if( Verbose && PrintMiscellaneous ) { | |
| 3166 reserveTimer.stop(); | |
|
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
3167 tty->print_cr("reserve_memory of %Ix bytes took " JLONG_FORMAT " ms (" JLONG_FORMAT " ticks)", bytes, |
| 3885 | 3168 reserveTimer.milliseconds(), reserveTimer.ticks()); |
| 3169 } | |
| 3170 } | |
| 0 | 3171 assert(res == NULL || addr == NULL || addr == res, |
| 3172 "Unexpected address from reserve."); | |
| 3885 | 3173 |
| 0 | 3174 return res; |
| 3175 } | |
| 3176 | |
| 3177 // Reserve memory at an arbitrary address, only if that area is | |
| 3178 // available (and not reserved for something else). | |
| 6197 | 3179 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
| 0 | 3180 // Windows os::reserve_memory() fails of the requested address range is |
| 3181 // not avilable. | |
| 3182 return reserve_memory(bytes, requested_addr); | |
| 3183 } | |
| 3184 | |
| 3185 size_t os::large_page_size() { | |
| 3186 return _large_page_size; | |
| 3187 } | |
| 3188 | |
| 3189 bool os::can_commit_large_page_memory() { | |
| 3190 // Windows only uses large page memory when the entire region is reserved | |
| 3191 // and committed in a single VirtualAlloc() call. This may change in the | |
| 3192 // future, but with Windows 2003 it's not possible to commit on demand. | |
| 3193 return false; | |
| 3194 } | |
| 3195 | |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3196 bool os::can_execute_large_page_memory() { |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3197 return true; |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3198 } |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3199 |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3200 char* os::reserve_memory_special(size_t bytes, size_t alignment, char* addr, bool exec) { |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3201 assert(UseLargePages, "only for large pages"); |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3202 |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3203 if (!is_size_aligned(bytes, os::large_page_size()) || alignment > os::large_page_size()) { |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3204 return NULL; // Fallback to small pages. |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3205 } |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3206 |
| 717 | 3207 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
| 3885 | 3208 const DWORD flags = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 3209 | |
| 3210 // with large pages, there are two cases where we need to use Individual Allocation | |
| 3211 // 1) the UseLargePagesIndividualAllocation flag is set (set by default on WS2003) | |
| 3212 // 2) NUMA Interleaving is enabled, in which case we use a different node for each page | |
| 3213 if (UseLargePagesIndividualAllocation || UseNUMAInterleaving) { | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3214 if (TracePageSizes && Verbose) { |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3215 tty->print_cr("Reserving large pages individually."); |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3216 } |
| 3885 | 3217 char * p_buf = allocate_pages_individually(bytes, addr, flags, prot, LargePagesIndividualAllocationInjectError); |
| 3218 if (p_buf == NULL) { | |
| 3219 // give an appropriate warning message | |
| 3220 if (UseNUMAInterleaving) { | |
| 3221 warning("NUMA large page allocation failed, UseLargePages flag ignored"); | |
| 3222 } | |
| 3223 if (UseLargePagesIndividualAllocation) { | |
| 3224 warning("Individually allocated large pages failed, " | |
| 3225 "use -XX:-UseLargePagesIndividualAllocation to turn off"); | |
| 3226 } | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3227 return NULL; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3228 } |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3229 |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3230 return p_buf; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3231 |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3232 } else { |
|
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3233 if (TracePageSizes && Verbose) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3234 tty->print_cr("Reserving large pages in a single large chunk."); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3235 } |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3236 // normal policy just allocate it all at once |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3237 DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
|
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3238 char * res = (char *)VirtualAlloc(addr, bytes, flag, prot); |
|
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3239 if (res != NULL) { |
| 20360 | 3240 MemTracker::record_virtual_memory_reserve_and_commit((address)res, bytes, CALLER_PC); |
|
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3241 } |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3242 |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3243 return res; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3244 } |
| 0 | 3245 } |
| 3246 | |
| 3247 bool os::release_memory_special(char* base, size_t bytes) { | |
|
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3248 assert(base != NULL, "Sanity check"); |
| 0 | 3249 return release_memory(base, bytes); |
| 3250 } | |
| 3251 | |
| 3252 void os::print_statistics() { | |
| 3253 } | |
| 3254 | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3255 static void warn_fail_commit_memory(char* addr, size_t bytes, bool exec) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3256 int err = os::get_last_error(); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3257 char buf[256]; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3258 size_t buf_len = os::lasterror(buf, sizeof(buf)); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3259 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3260 ", %d) failed; error='%s' (DOS error/errno=%d)", addr, bytes, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3261 exec, buf_len != 0 ? buf : "<no_error_string>", err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3262 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3263 |
| 6197 | 3264 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) { |
| 0 | 3265 if (bytes == 0) { |
| 3266 // Don't bother the OS with noops. | |
| 3267 return true; | |
| 3268 } | |
| 3269 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
| 3270 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
| 3271 // Don't attempt to print anything if the OS call fails. We're | |
| 3272 // probably low on resources, so the print itself may cause crashes. | |
| 3885 | 3273 |
| 3274 // unless we have NUMAInterleaving enabled, the range of a commit | |
| 3275 // is always within a reserve covered by a single VirtualAlloc | |
| 3276 // in that case we can just do a single commit for the requested size | |
| 3277 if (!UseNUMAInterleaving) { | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3278 if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3279 NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);) |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3280 return false; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3281 } |
| 3885 | 3282 if (exec) { |
| 3283 DWORD oldprot; | |
| 3284 // Windows doc says to use VirtualProtect to get execute permissions | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3285 if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3286 NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);) |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3287 return false; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3288 } |
| 3885 | 3289 } |
| 3290 return true; | |
| 656 | 3291 } else { |
| 3885 | 3292 |
| 3293 // when NUMAInterleaving is enabled, the commit might cover a range that | |
| 3294 // came from multiple VirtualAlloc reserves (using allocate_pages_individually). | |
| 3295 // VirtualQuery can help us determine that. The RegionSize that VirtualQuery | |
| 3296 // returns represents the number of bytes that can be committed in one step. | |
| 3297 size_t bytes_remaining = bytes; | |
| 3298 char * next_alloc_addr = addr; | |
| 3299 while (bytes_remaining > 0) { | |
| 3300 MEMORY_BASIC_INFORMATION alloc_info; | |
| 3301 VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info)); | |
| 3302 size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize); | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3303 if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3304 PAGE_READWRITE) == NULL) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3305 NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3306 exec);) |
| 3885 | 3307 return false; |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3308 } |
| 3885 | 3309 if (exec) { |
| 3310 DWORD oldprot; | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3311 if (!VirtualProtect(next_alloc_addr, bytes_to_rq, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3312 PAGE_EXECUTE_READWRITE, &oldprot)) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3313 NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3314 exec);) |
| 3885 | 3315 return false; |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3316 } |
| 3885 | 3317 } |
| 3318 bytes_remaining -= bytes_to_rq; | |
| 3319 next_alloc_addr += bytes_to_rq; | |
| 3320 } | |
| 3321 } | |
| 3322 // if we made it this far, return true | |
| 3323 return true; | |
| 0 | 3324 } |
| 3325 | |
| 6197 | 3326 bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint, |
| 656 | 3327 bool exec) { |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3328 // alignment_hint is ignored on this OS |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3329 return pd_commit_memory(addr, size, exec); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3330 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3331 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3332 void os::pd_commit_memory_or_exit(char* addr, size_t size, bool exec, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3333 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3334 assert(mesg != NULL, "mesg must be specified"); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3335 if (!pd_commit_memory(addr, size, exec)) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3336 warn_fail_commit_memory(addr, size, exec); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3337 vm_exit_out_of_memory(size, OOM_MMAP_ERROR, mesg); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3338 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3339 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3340 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3341 void os::pd_commit_memory_or_exit(char* addr, size_t size, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3342 size_t alignment_hint, bool exec, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3343 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3344 // alignment_hint is ignored on this OS |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3345 pd_commit_memory_or_exit(addr, size, exec, mesg); |
| 0 | 3346 } |
| 3347 | |
| 6197 | 3348 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
| 0 | 3349 if (bytes == 0) { |
| 3350 // Don't bother the OS with noops. | |
| 3351 return true; | |
| 3352 } | |
| 3353 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
| 3354 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
| 6197 | 3355 return (VirtualFree(addr, bytes, MEM_DECOMMIT) != 0); |
| 3356 } | |
| 3357 | |
| 3358 bool os::pd_release_memory(char* addr, size_t bytes) { | |
| 0 | 3359 return VirtualFree(addr, 0, MEM_RELEASE) != 0; |
| 3360 } | |
| 3361 | |
| 6197 | 3362 bool os::pd_create_stack_guard_pages(char* addr, size_t size) { |
|
10969
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
3363 return os::commit_memory(addr, size, !ExecMem); |
|
1320
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6929067: Stack guard pages should be removed when thread is detached
coleenp
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1215
diff
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|
3364 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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1215
diff
changeset
|
3365 |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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1215
diff
changeset
|
3366 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
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1215
diff
changeset
|
3367 return os::uncommit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3368 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
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|
3369 |
|
237
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|
3370 // Set protections specified |
|
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|
3371 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
|
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|
3372 bool is_committed) { |
|
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|
3373 unsigned int p = 0; |
|
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|
3374 switch (prot) { |
|
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|
3375 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
|
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|
3376 case MEM_PROT_READ: p = PAGE_READONLY; break; |
|
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|
3377 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
|
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|
3378 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
|
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|
3379 default: |
|
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|
3380 ShouldNotReachHere(); |
|
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|
3381 } |
|
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|
3382 |
| 0 | 3383 DWORD old_status; |
|
237
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|
3384 |
|
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|
3385 // Strange enough, but on Win32 one can change protection only for committed |
|
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|
3386 // memory, not a big deal anyway, as bytes less or equal than 64K |
|
10969
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
3387 if (!is_committed) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3388 commit_memory_or_exit(addr, bytes, prot == MEM_PROT_RWX, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3389 "cannot commit protection page"); |
|
237
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|
3390 } |
|
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|
3391 // One cannot use os::guard_memory() here, as on Win32 guard page |
|
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|
3392 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
|
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|
3393 // |
|
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|
3394 // Pages in the region become guard pages. Any attempt to access a guard page |
|
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|
3395 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
|
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|
3396 // the guard page status. Guard pages thus act as a one-time access alarm. |
|
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|
3397 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
| 0 | 3398 } |
| 3399 | |
| 3400 bool os::guard_memory(char* addr, size_t bytes) { | |
| 3401 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
|
3402 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
| 0 | 3403 } |
| 3404 | |
| 3405 bool os::unguard_memory(char* addr, size_t bytes) { | |
| 3406 DWORD old_status; | |
|
477
24fda36852ce
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467
diff
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|
3407 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
| 0 | 3408 } |
| 3409 | |
| 6197 | 3410 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } |
| 3411 void os::pd_free_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
| 0 | 3412 void os::numa_make_global(char *addr, size_t bytes) { } |
| 141 | 3413 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
| 0 | 3414 bool os::numa_topology_changed() { return false; } |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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3885
diff
changeset
|
3415 size_t os::numa_get_groups_num() { return MAX2(numa_node_list_holder.get_count(), 1); } |
| 0 | 3416 int os::numa_get_group_id() { return 0; } |
| 3417 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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diff
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|
3418 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3419 // Provide an answer for UMA systems |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3420 ids[0] = 0; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3421 return 1; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3422 } else { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3423 // check for size bigger than actual groups_num |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3424 size = MIN2(size, numa_get_groups_num()); |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3425 for (int i = 0; i < (int)size; i++) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3426 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
|
3427 } |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3428 return size; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3429 } |
| 0 | 3430 } |
| 3431 | |
| 3432 bool os::get_page_info(char *start, page_info* info) { | |
| 3433 return false; | |
| 3434 } | |
| 3435 | |
| 3436 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 3437 return end; | |
| 3438 } | |
| 3439 | |
| 3440 char* os::non_memory_address_word() { | |
| 3441 // Must never look like an address returned by reserve_memory, | |
| 3442 // even in its subfields (as defined by the CPU immediate fields, | |
| 3443 // if the CPU splits constants across multiple instructions). | |
| 3444 return (char*)-1; | |
| 3445 } | |
| 3446 | |
| 3447 #define MAX_ERROR_COUNT 100 | |
| 3448 #define SYS_THREAD_ERROR 0xffffffffUL | |
| 3449 | |
| 3450 void os::pd_start_thread(Thread* thread) { | |
| 3451 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
| 3452 // Returns previous suspend state: | |
| 3453 // 0: Thread was not suspended | |
| 3454 // 1: Thread is running now | |
| 3455 // >1: Thread is still suspended. | |
| 3456 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
| 3457 } | |
| 3458 | |
|
10271
f9be75d21404
8012902: remove use of global operator new - take 2
minqi
parents:
10202
diff
changeset
|
3459 class HighResolutionInterval : public CHeapObj<mtThread> { |
| 0 | 3460 // The default timer resolution seems to be 10 milliseconds. |
| 3461 // (Where is this written down?) | |
| 3462 // If someone wants to sleep for only a fraction of the default, | |
| 3463 // then we set the timer resolution down to 1 millisecond for | |
| 3464 // the duration of their interval. | |
| 3465 // We carefully set the resolution back, since otherwise we | |
| 3466 // seem to incur an overhead (3%?) that we don't need. | |
| 3467 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
| 3468 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
| 3469 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
| 3470 // timeBeginPeriod() if the relative error exceeded some threshold. | |
| 3471 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
| 3472 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
| 3473 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
| 3474 // resolution timers running. | |
| 3475 private: | |
| 3476 jlong resolution; | |
| 3477 public: | |
| 3478 HighResolutionInterval(jlong ms) { | |
| 3479 resolution = ms % 10L; | |
| 3480 if (resolution != 0) { | |
| 3481 MMRESULT result = timeBeginPeriod(1L); | |
| 3482 } | |
| 3483 } | |
| 3484 ~HighResolutionInterval() { | |
| 3485 if (resolution != 0) { | |
| 3486 MMRESULT result = timeEndPeriod(1L); | |
| 3487 } | |
| 3488 resolution = 0L; | |
| 3489 } | |
| 3490 }; | |
| 3491 | |
| 3492 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
| 3493 jlong limit = (jlong) MAXDWORD; | |
| 3494 | |
| 3495 while(ms > limit) { | |
| 3496 int res; | |
| 3497 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
| 3498 return res; | |
| 3499 ms -= limit; | |
| 3500 } | |
| 3501 | |
| 3502 assert(thread == Thread::current(), "thread consistency check"); | |
| 3503 OSThread* osthread = thread->osthread(); | |
| 3504 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
| 3505 int result; | |
| 3506 if (interruptable) { | |
| 3507 assert(thread->is_Java_thread(), "must be java thread"); | |
| 3508 JavaThread *jt = (JavaThread *) thread; | |
| 3509 ThreadBlockInVM tbivm(jt); | |
| 3510 | |
| 3511 jt->set_suspend_equivalent(); | |
| 3512 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3513 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3514 | |
| 3515 HANDLE events[1]; | |
| 3516 events[0] = osthread->interrupt_event(); | |
| 3517 HighResolutionInterval *phri=NULL; | |
| 3518 if(!ForceTimeHighResolution) | |
| 3519 phri = new HighResolutionInterval( ms ); | |
| 3520 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
| 3521 result = OS_TIMEOUT; | |
| 3522 } else { | |
| 3523 ResetEvent(osthread->interrupt_event()); | |
| 3524 osthread->set_interrupted(false); | |
| 3525 result = OS_INTRPT; | |
| 3526 } | |
| 3527 delete phri; //if it is NULL, harmless | |
| 3528 | |
| 3529 // were we externally suspended while we were waiting? | |
| 3530 jt->check_and_wait_while_suspended(); | |
| 3531 } else { | |
| 3532 assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3533 Sleep((long) ms); | |
| 3534 result = OS_TIMEOUT; | |
| 3535 } | |
| 3536 return result; | |
| 3537 } | |
| 3538 | |
|
17706
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
12253
diff
changeset
|
3539 // |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
12253
diff
changeset
|
3540 // Short sleep, direct OS call. |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
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12253
diff
changeset
|
3541 // |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
changeset
|
3542 // ms = 0, means allow others (if any) to run. |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
12253
diff
changeset
|
3543 // |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
changeset
|
3544 void os::naked_short_sleep(jlong ms) { |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
changeset
|
3545 assert(ms < 1000, "Un-interruptable sleep, short time use only"); |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
dsimms
parents:
12253
diff
changeset
|
3546 Sleep(ms); |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
changeset
|
3547 } |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
changeset
|
3548 |
| 0 | 3549 // Sleep forever; naked call to OS-specific sleep; use with CAUTION |
| 3550 void os::infinite_sleep() { | |
| 3551 while (true) { // sleep forever ... | |
| 3552 Sleep(100000); // ... 100 seconds at a time | |
| 3553 } | |
| 3554 } | |
| 3555 | |
| 3556 typedef BOOL (WINAPI * STTSignature)(void) ; | |
| 3557 | |
| 3558 os::YieldResult os::NakedYield() { | |
| 3559 // Use either SwitchToThread() or Sleep(0) | |
| 3560 // Consider passing back the return value from SwitchToThread(). | |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
3561 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3562 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
| 0 | 3563 } else { |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
diff
changeset
|
3564 Sleep(0); |
| 0 | 3565 } |
| 3566 return os::YIELD_UNKNOWN ; | |
| 3567 } | |
| 3568 | |
| 3569 void os::yield() { os::NakedYield(); } | |
| 3570 | |
| 3571 void os::yield_all(int attempts) { | |
| 3572 // Yields to all threads, including threads with lower priorities | |
| 3573 Sleep(1); | |
| 3574 } | |
| 3575 | |
| 3576 // Win32 only gives you access to seven real priorities at a time, | |
| 3577 // so we compress Java's ten down to seven. It would be better | |
| 3578 // if we dynamically adjusted relative priorities. | |
| 3579 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3580 int os::java_to_os_priority[CriticalPriority + 1] = { |
| 0 | 3581 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3582 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3583 THREAD_PRIORITY_LOWEST, // 2 | |
| 3584 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3585 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3586 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3587 THREAD_PRIORITY_NORMAL, // 6 | |
| 3588 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3589 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
| 3590 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3591 THREAD_PRIORITY_HIGHEST, // 10 MaxPriority |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3592 THREAD_PRIORITY_HIGHEST // 11 CriticalPriority |
| 0 | 3593 }; |
| 3594 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3595 int prio_policy1[CriticalPriority + 1] = { |
| 0 | 3596 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3597 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3598 THREAD_PRIORITY_LOWEST, // 2 | |
| 3599 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3600 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3601 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3602 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
| 3603 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3604 THREAD_PRIORITY_HIGHEST, // 8 | |
| 3605 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3606 THREAD_PRIORITY_TIME_CRITICAL, // 10 MaxPriority |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3607 THREAD_PRIORITY_TIME_CRITICAL // 11 CriticalPriority |
| 0 | 3608 }; |
| 3609 | |
| 3610 static int prio_init() { | |
| 3611 // If ThreadPriorityPolicy is 1, switch tables | |
| 3612 if (ThreadPriorityPolicy == 1) { | |
| 3613 int i; | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3614 for (i = 0; i < CriticalPriority + 1; i++) { |
| 0 | 3615 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3616 } | |
| 3617 } | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3618 if (UseCriticalJavaThreadPriority) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3619 os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority] ; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
parents:
4803
diff
changeset
|
3620 } |
| 0 | 3621 return 0; |
| 3622 } | |
| 3623 | |
| 3624 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
| 3625 if (!UseThreadPriorities) return OS_OK; | |
| 3626 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
| 3627 return ret ? OS_OK : OS_ERR; | |
| 3628 } | |
| 3629 | |
| 3630 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
| 3631 if ( !UseThreadPriorities ) { | |
| 3632 *priority_ptr = java_to_os_priority[NormPriority]; | |
| 3633 return OS_OK; | |
| 3634 } | |
| 3635 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
| 3636 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
| 3637 assert(false, "GetThreadPriority failed"); | |
| 3638 return OS_ERR; | |
| 3639 } | |
| 3640 *priority_ptr = os_prio; | |
| 3641 return OS_OK; | |
| 3642 } | |
| 3643 | |
| 3644 | |
| 3645 // Hint to the underlying OS that a task switch would not be good. | |
| 3646 // Void return because it's a hint and can fail. | |
| 3647 void os::hint_no_preempt() {} | |
| 3648 | |
| 3649 void os::interrupt(Thread* thread) { | |
| 3650 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3651 "possibility of dangling Thread pointer"); | |
| 3652 | |
| 3653 OSThread* osthread = thread->osthread(); | |
| 3654 osthread->set_interrupted(true); | |
| 3655 // More than one thread can get here with the same value of osthread, | |
| 3656 // resulting in multiple notifications. We do, however, want the store | |
| 3657 // to interrupted() to be visible to other threads before we post | |
| 3658 // the interrupt event. | |
| 3659 OrderAccess::release(); | |
| 3660 SetEvent(osthread->interrupt_event()); | |
| 3661 // For JSR166: unpark after setting status | |
| 3662 if (thread->is_Java_thread()) | |
| 3663 ((JavaThread*)thread)->parker()->unpark(); | |
| 3664 | |
| 3665 ParkEvent * ev = thread->_ParkEvent ; | |
| 3666 if (ev != NULL) ev->unpark() ; | |
| 3667 | |
| 3668 } | |
| 3669 | |
| 3670 | |
| 3671 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 3672 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3673 "possibility of dangling Thread pointer"); | |
| 3674 | |
| 3675 OSThread* osthread = thread->osthread(); | |
|
2386
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
parents:
2306
diff
changeset
|
3676 // There is no synchronization between the setting of the interrupt |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
parents:
2306
diff
changeset
|
3677 // and it being cleared here. It is critical - see 6535709 - that |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
parents:
2306
diff
changeset
|
3678 // we only clear the interrupt state, and reset the interrupt event, |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
parents:
2306
diff
changeset
|
3679 // if we are going to report that we were indeed interrupted - else |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
parents:
2306
diff
changeset
|
3680 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
|
17716
cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
minqi
parents:
17706
diff
changeset
|
3681 // depending on the timing. By checking thread interrupt event to see |
|
cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
minqi
parents:
17706
diff
changeset
|
3682 // if the thread gets real interrupt thus prevent spurious wakeup. |
|
cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
minqi
parents:
17706
diff
changeset
|
3683 bool interrupted = osthread->interrupted() && (WaitForSingleObject(osthread->interrupt_event(), 0) == WAIT_OBJECT_0); |
|
2386
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
parents:
2306
diff
changeset
|
3684 if (interrupted && clear_interrupted) { |
| 0 | 3685 osthread->set_interrupted(false); |
| 3686 ResetEvent(osthread->interrupt_event()); | |
| 3687 } // Otherwise leave the interrupted state alone | |
| 3688 | |
| 3689 return interrupted; | |
| 3690 } | |
| 3691 | |
| 3692 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
| 3693 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 3694 CONTEXT context; | |
| 3695 context.ContextFlags = CONTEXT_CONTROL; | |
| 3696 HANDLE handle = thread->osthread()->thread_handle(); | |
| 3697 #ifdef _M_IA64 | |
| 3698 assert(0, "Fix get_thread_pc"); | |
| 3699 return ExtendedPC(NULL); | |
| 3700 #else | |
| 3701 if (GetThreadContext(handle, &context)) { | |
| 3702 #ifdef _M_AMD64 | |
| 3703 return ExtendedPC((address) context.Rip); | |
| 3704 #else | |
| 3705 return ExtendedPC((address) context.Eip); | |
| 3706 #endif | |
| 3707 } else { | |
| 3708 return ExtendedPC(NULL); | |
| 3709 } | |
| 3710 #endif | |
| 3711 } | |
| 3712 | |
|
16719
b1911c1e44c8
Dump disassembly in crash log
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14909
diff
changeset
|
3713 address os::get_pc(void* context) { |
|
b1911c1e44c8
Dump disassembly in crash log
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14909
diff
changeset
|
3714 CONTEXT* uc = (CONTEXT*)context; |
|
b1911c1e44c8
Dump disassembly in crash log
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14909
diff
changeset
|
3715 #ifdef _M_AMD64 |
|
16780
534439756990
Fixed compile error in os_windows.cpp.
Christian Humer <christian.humer@gmail.com>
parents:
16719
diff
changeset
|
3716 return (address) uc->Rip; |
|
16719
b1911c1e44c8
Dump disassembly in crash log
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14909
diff
changeset
|
3717 #else |
|
16780
534439756990
Fixed compile error in os_windows.cpp.
Christian Humer <christian.humer@gmail.com>
parents:
16719
diff
changeset
|
3718 return (address) uc->Eip; |
|
16719
b1911c1e44c8
Dump disassembly in crash log
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14909
diff
changeset
|
3719 #endif |
|
b1911c1e44c8
Dump disassembly in crash log
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14909
diff
changeset
|
3720 } |
|
b1911c1e44c8
Dump disassembly in crash log
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14909
diff
changeset
|
3721 |
|
b1911c1e44c8
Dump disassembly in crash log
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
14909
diff
changeset
|
3722 |
| 0 | 3723 // GetCurrentThreadId() returns DWORD |
| 3724 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
| 3725 | |
| 3726 static int _initial_pid = 0; | |
| 3727 | |
| 3728 int os::current_process_id() | |
| 3729 { | |
| 3730 return (_initial_pid ? _initial_pid : _getpid()); | |
| 3731 } | |
| 3732 | |
| 3733 int os::win32::_vm_page_size = 0; | |
| 3734 int os::win32::_vm_allocation_granularity = 0; | |
| 3735 int os::win32::_processor_type = 0; | |
| 3736 // Processor level is not available on non-NT systems, use vm_version instead | |
| 3737 int os::win32::_processor_level = 0; | |
| 3738 julong os::win32::_physical_memory = 0; | |
| 3739 size_t os::win32::_default_stack_size = 0; | |
| 3740 | |
| 3741 intx os::win32::_os_thread_limit = 0; | |
| 3742 volatile intx os::win32::_os_thread_count = 0; | |
| 3743 | |
| 3744 bool os::win32::_is_nt = false; | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3745 bool os::win32::_is_windows_2003 = false; |
|
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3746 bool os::win32::_is_windows_server = false; |
| 0 | 3747 |
| 3748 void os::win32::initialize_system_info() { | |
| 3749 SYSTEM_INFO si; | |
| 3750 GetSystemInfo(&si); | |
| 3751 _vm_page_size = si.dwPageSize; | |
| 3752 _vm_allocation_granularity = si.dwAllocationGranularity; | |
| 3753 _processor_type = si.dwProcessorType; | |
| 3754 _processor_level = si.wProcessorLevel; | |
|
1123
167c2986d91b
6843629: Make current hotspot build part of jdk5 control build
phh
parents:
962
diff
changeset
|
3755 set_processor_count(si.dwNumberOfProcessors); |
| 0 | 3756 |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
3757 MEMORYSTATUSEX ms; |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
3758 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
|
3759 |
| 0 | 3760 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
| 3761 // dwMemoryLoad (% of memory in use) | |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
3762 GlobalMemoryStatusEx(&ms); |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
3763 _physical_memory = ms.ullTotalPhys; |
| 0 | 3764 |
|
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3765 OSVERSIONINFOEX oi; |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3766 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3767 GetVersionEx((OSVERSIONINFO*)&oi); |
| 0 | 3768 switch(oi.dwPlatformId) { |
| 3769 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3770 case VER_PLATFORM_WIN32_NT: |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3771 _is_nt = true; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3772 { |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3773 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3774 if (os_vers == 5002) { |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3775 _is_windows_2003 = true; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3776 } |
|
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3777 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3778 oi.wProductType == VER_NT_SERVER) { |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3779 _is_windows_server = true; |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3780 } |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3781 } |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3782 break; |
| 0 | 3783 default: fatal("Unknown platform"); |
| 3784 } | |
| 3785 | |
| 3786 _default_stack_size = os::current_stack_size(); | |
| 3787 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
| 3788 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
| 3789 "stack size not a multiple of page size"); | |
| 3790 | |
| 3791 initialize_performance_counter(); | |
| 3792 | |
| 3793 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
| 3794 // known to deadlock the system, if the VM issues to thread operations with | |
| 3795 // a too high frequency, e.g., such as changing the priorities. | |
| 3796 // The 6000 seems to work well - no deadlocks has been notices on the test | |
| 3797 // programs that we have seen experience this problem. | |
| 3798 if (!os::win32::is_nt()) { | |
| 3799 StarvationMonitorInterval = 6000; | |
| 3800 } | |
| 3801 } | |
| 3802 | |
| 3803 | |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3804 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3805 char path[MAX_PATH]; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3806 DWORD size; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3807 DWORD pathLen = (DWORD)sizeof(path); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3808 HINSTANCE result = NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3809 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3810 // only allow library name without path component |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3811 assert(strchr(name, '\\') == NULL, "path not allowed"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3812 assert(strchr(name, ':') == NULL, "path not allowed"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3813 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3814 jio_snprintf(ebuf, ebuflen, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3815 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3816 return NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3817 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3818 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3819 // search system directory |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3820 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3821 strcat(path, "\\"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3822 strcat(path, name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3823 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3824 return result; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3825 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3826 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3827 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3828 // try Windows directory |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3829 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3830 strcat(path, "\\"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3831 strcat(path, name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3832 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3833 return result; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3834 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3835 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3836 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3837 jio_snprintf(ebuf, ebuflen, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3838 "os::win32::load_windows_dll() cannot load %s from system directories.", name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3839 return NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3840 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3841 |
| 0 | 3842 void os::win32::setmode_streams() { |
| 3843 _setmode(_fileno(stdin), _O_BINARY); | |
| 3844 _setmode(_fileno(stdout), _O_BINARY); | |
| 3845 _setmode(_fileno(stderr), _O_BINARY); | |
| 3846 } | |
| 3847 | |
| 3848 | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3849 bool os::is_debugger_attached() { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3850 return IsDebuggerPresent() ? true : false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3851 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3852 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3853 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3854 void os::wait_for_keypress_at_exit(void) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3855 if (PauseAtExit) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3856 fprintf(stderr, "Press any key to continue...\n"); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3857 fgetc(stdin); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3858 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3859 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3860 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2205
diff
changeset
|
3861 |
| 0 | 3862 int os::message_box(const char* title, const char* message) { |
| 3863 int result = MessageBox(NULL, message, title, | |
| 3864 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
| 3865 return result == IDYES; | |
| 3866 } | |
| 3867 | |
| 3868 int os::allocate_thread_local_storage() { | |
| 3869 return TlsAlloc(); | |
| 3870 } | |
| 3871 | |
| 3872 | |
| 3873 void os::free_thread_local_storage(int index) { | |
| 3874 TlsFree(index); | |
| 3875 } | |
| 3876 | |
| 3877 | |
| 3878 void os::thread_local_storage_at_put(int index, void* value) { | |
| 3879 TlsSetValue(index, value); | |
| 3880 assert(thread_local_storage_at(index) == value, "Just checking"); | |
| 3881 } | |
| 3882 | |
| 3883 | |
| 3884 void* os::thread_local_storage_at(int index) { | |
| 3885 return TlsGetValue(index); | |
| 3886 } | |
| 3887 | |
| 3888 | |
| 3889 #ifndef PRODUCT | |
| 3890 #ifndef _WIN64 | |
| 3891 // Helpers to check whether NX protection is enabled | |
| 3892 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
| 3893 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 3894 pex->ExceptionRecord->NumberParameters > 0 && | |
| 3895 pex->ExceptionRecord->ExceptionInformation[0] == | |
| 3896 EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 3897 return EXCEPTION_EXECUTE_HANDLER; | |
| 3898 } | |
| 3899 return EXCEPTION_CONTINUE_SEARCH; | |
| 3900 } | |
| 3901 | |
| 3902 void nx_check_protection() { | |
| 3903 // If NX is enabled we'll get an exception calling into code on the stack | |
| 3904 char code[] = { (char)0xC3 }; // ret | |
| 3905 void *code_ptr = (void *)code; | |
| 3906 __try { | |
| 3907 __asm call code_ptr | |
| 3908 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
| 3909 tty->print_raw_cr("NX protection detected."); | |
| 3910 } | |
| 3911 } | |
| 3912 #endif // _WIN64 | |
| 3913 #endif // PRODUCT | |
| 3914 | |
| 3915 // this is called _before_ the global arguments have been parsed | |
| 3916 void os::init(void) { | |
| 3917 _initial_pid = _getpid(); | |
| 3918 | |
| 3919 init_random(1234567); | |
| 3920 | |
| 3921 win32::initialize_system_info(); | |
| 3922 win32::setmode_streams(); | |
| 3923 init_page_sizes((size_t) win32::vm_page_size()); | |
| 3924 | |
| 3925 // For better scalability on MP systems (must be called after initialize_system_info) | |
| 3926 #ifndef PRODUCT | |
| 3927 if (is_MP()) { | |
| 3928 NoYieldsInMicrolock = true; | |
| 3929 } | |
| 3930 #endif | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3931 // This may be overridden later when argument processing is done. |
|
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
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changeset
|
3932 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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parents:
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diff
changeset
|
3933 os::win32::is_windows_2003()); |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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|
3934 |
| 0 | 3935 // Initialize main_process and main_thread |
| 3936 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
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diff
changeset
|
3937 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
| 0 | 3938 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
| 3939 fatal("DuplicateHandle failed\n"); | |
| 3940 } | |
| 3941 main_thread_id = (int) GetCurrentThreadId(); | |
| 3942 } | |
| 3943 | |
| 3944 // To install functions for atexit processing | |
| 3945 extern "C" { | |
| 3946 static void perfMemory_exit_helper() { | |
| 3947 perfMemory_exit(); | |
| 3948 } | |
| 3949 } | |
| 3950 | |
| 8872 | 3951 static jint initSock(); |
| 3952 | |
| 0 | 3953 // this is called _after_ the global arguments have been parsed |
| 3954 jint os::init_2(void) { | |
| 3955 // Allocate a single page and mark it as readable for safepoint polling | |
| 3956 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
| 3957 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
| 3958 | |
| 3959 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
| 3960 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
| 3961 | |
| 3962 os::set_polling_page( polling_page ); | |
| 3963 | |
| 3964 #ifndef PRODUCT | |
| 3965 if( Verbose && PrintMiscellaneous ) | |
| 3966 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 3967 #endif | |
| 3968 | |
| 3969 if (!UseMembar) { | |
| 656 | 3970 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
| 0 | 3971 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
| 3972 | |
| 656 | 3973 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
| 0 | 3974 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
| 3975 | |
| 3976 os::set_memory_serialize_page( mem_serialize_page ); | |
| 3977 | |
| 3978 #ifndef PRODUCT | |
| 3979 if(Verbose && PrintMiscellaneous) | |
| 3980 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 3981 #endif | |
| 3885 | 3982 } |
| 0 | 3983 |
| 3984 // Setup Windows Exceptions | |
| 3985 | |
| 3986 // for debugging float code generation bugs | |
| 3987 if (ForceFloatExceptions) { | |
| 3988 #ifndef _WIN64 | |
| 3989 static long fp_control_word = 0; | |
| 3990 __asm { fstcw fp_control_word } | |
| 3991 // see Intel PPro Manual, Vol. 2, p 7-16 | |
| 3992 const long precision = 0x20; | |
| 3993 const long underflow = 0x10; | |
| 3994 const long overflow = 0x08; | |
| 3995 const long zero_div = 0x04; | |
| 3996 const long denorm = 0x02; | |
| 3997 const long invalid = 0x01; | |
| 3998 fp_control_word |= invalid; | |
| 3999 __asm { fldcw fp_control_word } | |
| 4000 #endif | |
| 4001 } | |
| 4002 | |
| 4003 // If stack_commit_size is 0, windows will reserve the default size, | |
| 4004 // but only commit a small portion of it. | |
| 4005 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
| 4006 size_t default_reserve_size = os::win32::default_stack_size(); | |
| 4007 size_t actual_reserve_size = stack_commit_size; | |
| 4008 if (stack_commit_size < default_reserve_size) { | |
| 4009 // If stack_commit_size == 0, we want this too | |
| 4010 actual_reserve_size = default_reserve_size; | |
| 4011 } | |
| 4012 | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4013 // 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
|
4014 // the java system classes, including StackOverflowError - depends on page |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4015 // 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
|
4016 // 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
|
4017 // class initialization depending on 32 or 64 bit VM. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4018 size_t min_stack_allowed = |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4019 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4020 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4021 if (actual_reserve_size < min_stack_allowed) { |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4022 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
|
4023 "Specify at least %dk", |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4024 min_stack_allowed / K); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4025 return JNI_ERR; |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4026 } |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
4027 |
| 0 | 4028 JavaThread::set_stack_size_at_create(stack_commit_size); |
| 4029 | |
| 4030 // Calculate theoretical max. size of Threads to guard gainst artifical | |
| 4031 // out-of-memory situations, where all available address-space has been | |
| 4032 // reserved by thread stacks. | |
| 4033 assert(actual_reserve_size != 0, "Must have a stack"); | |
| 4034 | |
| 4035 // Calculate the thread limit when we should start doing Virtual Memory | |
| 4036 // banging. Currently when the threads will have used all but 200Mb of space. | |
| 4037 // | |
| 4038 // TODO: consider performing a similar calculation for commit size instead | |
| 4039 // as reserve size, since on a 64-bit platform we'll run into that more | |
| 4040 // often than running out of virtual memory space. We can use the | |
| 4041 // lower value of the two calculations as the os_thread_limit. | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
79
diff
changeset
|
4042 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
| 0 | 4043 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
| 4044 | |
| 4045 // at exit methods are called in the reverse order of their registration. | |
| 4046 // there is no limit to the number of functions registered. atexit does | |
| 4047 // not set errno. | |
| 4048 | |
| 4049 if (PerfAllowAtExitRegistration) { | |
| 4050 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 4051 // atexit functions can be delayed until process exit time, which | |
| 4052 // can be problematic for embedded VM situations. Embedded VMs should | |
| 4053 // call DestroyJavaVM() to assure that VM resources are released. | |
| 4054 | |
| 4055 // note: perfMemory_exit_helper atexit function may be removed in | |
| 4056 // the future if the appropriate cleanup code can be added to the | |
| 4057 // VM_Exit VMOperation's doit method. | |
| 4058 if (atexit(perfMemory_exit_helper) != 0) { | |
| 4059 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
| 4060 } | |
| 4061 } | |
| 4062 | |
| 4063 #ifndef _WIN64 | |
| 4064 // Print something if NX is enabled (win32 on AMD64) | |
| 4065 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
| 4066 #endif | |
| 4067 | |
| 4068 // initialize thread priority policy | |
| 4069 prio_init(); | |
| 4070 | |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4071 if (UseNUMA && !ForceNUMA) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4072 UseNUMA = false; // We don't fully support this yet |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4073 } |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4074 |
| 3885 | 4075 if (UseNUMAInterleaving) { |
| 4076 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
| 4077 bool success = numa_interleaving_init(); | |
| 4078 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
|
4079 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
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389
diff
changeset
|
4080 |
| 8872 | 4081 if (initSock() != JNI_OK) { |
| 4082 return JNI_ERR; | |
| 4083 } | |
| 4084 | |
| 0 | 4085 return JNI_OK; |
| 4086 } | |
| 4087 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4088 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4089 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4090 } |
| 0 | 4091 |
| 4092 // Mark the polling page as unreadable | |
| 4093 void os::make_polling_page_unreadable(void) { | |
| 4094 DWORD old_status; | |
| 4095 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
| 4096 fatal("Could not disable polling page"); | |
| 4097 }; | |
| 4098 | |
| 4099 // Mark the polling page as readable | |
| 4100 void os::make_polling_page_readable(void) { | |
| 4101 DWORD old_status; | |
| 4102 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
| 4103 fatal("Could not enable polling page"); | |
| 4104 }; | |
| 4105 | |
| 4106 | |
| 4107 int os::stat(const char *path, struct stat *sbuf) { | |
| 4108 char pathbuf[MAX_PATH]; | |
| 4109 if (strlen(path) > MAX_PATH - 1) { | |
| 4110 errno = ENAMETOOLONG; | |
| 4111 return -1; | |
| 4112 } | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4113 os::native_path(strcpy(pathbuf, path)); |
| 0 | 4114 int ret = ::stat(pathbuf, sbuf); |
| 4115 if (sbuf != NULL && UseUTCFileTimestamp) { | |
| 4116 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
| 4117 // the system timezone and so can return different values for the | |
| 4118 // same file if/when daylight savings time changes. This adjustment | |
| 4119 // makes sure the same timestamp is returned regardless of the TZ. | |
| 4120 // | |
| 4121 // See: | |
| 4122 // http://msdn.microsoft.com/library/ | |
| 4123 // default.asp?url=/library/en-us/sysinfo/base/ | |
| 4124 // time_zone_information_str.asp | |
| 4125 // and | |
| 4126 // http://msdn.microsoft.com/library/default.asp?url= | |
| 4127 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
| 4128 // | |
| 4129 // NOTE: there is a insidious bug here: If the timezone is changed | |
| 4130 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
| 4131 // the adjustment we do here will be wrong and we'll return the wrong | |
| 4132 // value (which will likely end up creating an invalid class data | |
| 4133 // archive). Absent a better API for this, or some time zone locking | |
| 4134 // mechanism, we'll have to live with this risk. | |
| 4135 TIME_ZONE_INFORMATION tz; | |
| 4136 DWORD tzid = GetTimeZoneInformation(&tz); | |
| 4137 int daylightBias = | |
| 4138 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
| 4139 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
| 4140 } | |
| 4141 return ret; | |
| 4142 } | |
| 4143 | |
| 4144 | |
| 4145 #define FT2INT64(ft) \ | |
| 4146 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
| 4147 | |
| 4148 | |
| 4149 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 4150 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 4151 // of a thread. | |
| 4152 // | |
| 4153 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
| 4154 // the fast estimate available on the platform. | |
| 4155 | |
| 4156 // current_thread_cpu_time() is not optimized for Windows yet | |
| 4157 jlong os::current_thread_cpu_time() { | |
| 4158 // return user + sys since the cost is the same | |
| 4159 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
| 4160 } | |
| 4161 | |
| 4162 jlong os::thread_cpu_time(Thread* thread) { | |
| 4163 // consistent with what current_thread_cpu_time() returns. | |
| 4164 return os::thread_cpu_time(thread, true /* user+sys */); | |
| 4165 } | |
| 4166 | |
| 4167 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 4168 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 4169 } | |
| 4170 | |
| 4171 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
| 4172 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
| 4173 // If this function changes, os::is_thread_cpu_time_supported() should too | |
| 4174 if (os::win32::is_nt()) { | |
| 4175 FILETIME CreationTime; | |
| 4176 FILETIME ExitTime; | |
| 4177 FILETIME KernelTime; | |
| 4178 FILETIME UserTime; | |
| 4179 | |
| 4180 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
| 4181 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 4182 return -1; | |
| 4183 else | |
| 4184 if (user_sys_cpu_time) { | |
| 4185 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
| 4186 } else { | |
| 4187 return FT2INT64(UserTime) * 100; | |
| 4188 } | |
| 4189 } else { | |
| 4190 return (jlong) timeGetTime() * 1000000; | |
| 4191 } | |
| 4192 } | |
| 4193 | |
| 4194 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 4195 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 4196 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 4197 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 4198 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 4199 } | |
| 4200 | |
| 4201 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 4202 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 4203 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 4204 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 4205 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 4206 } | |
| 4207 | |
| 4208 bool os::is_thread_cpu_time_supported() { | |
| 4209 // see os::thread_cpu_time | |
| 4210 if (os::win32::is_nt()) { | |
| 4211 FILETIME CreationTime; | |
| 4212 FILETIME ExitTime; | |
| 4213 FILETIME KernelTime; | |
| 4214 FILETIME UserTime; | |
| 4215 | |
| 4216 if ( GetThreadTimes(GetCurrentThread(), | |
| 4217 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 4218 return false; | |
| 4219 else | |
| 4220 return true; | |
| 4221 } else { | |
| 4222 return false; | |
| 4223 } | |
| 4224 } | |
| 4225 | |
| 4226 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
| 4227 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
| 4228 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
| 4229 // If we wanted to implement loadavg on Windows, we have a few options: | |
| 4230 // | |
| 4231 // a) Query CPU usage and run queue length and "fake" an answer by | |
| 4232 // returning the CPU usage if it's under 100%, and the run queue | |
| 4233 // length otherwise. It turns out that querying is pretty slow | |
| 4234 // on Windows, on the order of 200 microseconds on a fast machine. | |
| 4235 // Note that on the Windows the CPU usage value is the % usage | |
| 4236 // since the last time the API was called (and the first call | |
| 4237 // returns 100%), so we'd have to deal with that as well. | |
| 4238 // | |
| 4239 // b) Sample the "fake" answer using a sampling thread and store | |
| 4240 // the answer in a global variable. The call to loadavg would | |
| 4241 // just return the value of the global, avoiding the slow query. | |
| 4242 // | |
| 4243 // c) Sample a better answer using exponential decay to smooth the | |
| 4244 // value. This is basically the algorithm used by UNIX kernels. | |
| 4245 // | |
| 4246 // Note that sampling thread starvation could affect both (b) and (c). | |
| 4247 int os::loadavg(double loadavg[], int nelem) { | |
| 4248 return -1; | |
| 4249 } | |
| 4250 | |
| 4251 | |
| 4252 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
| 4253 bool os::dont_yield() { | |
| 4254 return DontYieldALot; | |
| 4255 } | |
| 4256 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4257 // 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
|
4258 // 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
|
4259 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4260 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
|
4261 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4262 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4263 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4264 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4265 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4266 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4267 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4268 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
|
4269 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4270 |
|
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4271 FILE* os::open(int fd, const char* mode) { |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4272 return ::_fdopen(fd, mode); |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4273 } |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4274 |
| 0 | 4275 // Is a (classpath) directory empty? |
| 4276 bool os::dir_is_empty(const char* path) { | |
| 4277 WIN32_FIND_DATA fd; | |
| 4278 HANDLE f = FindFirstFile(path, &fd); | |
| 4279 if (f == INVALID_HANDLE_VALUE) { | |
| 4280 return true; | |
| 4281 } | |
| 4282 FindClose(f); | |
| 4283 return false; | |
| 4284 } | |
| 4285 | |
| 4286 // create binary file, rewriting existing file if required | |
| 4287 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 4288 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
| 4289 if (!rewrite_existing) { | |
| 4290 oflags |= _O_EXCL; | |
| 4291 } | |
| 4292 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
| 4293 } | |
| 4294 | |
| 4295 // return current position of file pointer | |
| 4296 jlong os::current_file_offset(int fd) { | |
| 4297 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
| 4298 } | |
| 4299 | |
| 4300 // move file pointer to the specified offset | |
| 4301 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 4302 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
| 4303 } | |
| 4304 | |
| 4305 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4306 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
|
4307 return (jlong) ::_lseeki64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4308 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4309 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4310 // 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
|
4311 // from src/windows/hpi/src/path_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4312 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4313 /* 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
|
4314 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
|
4315 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
|
4316 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
|
4317 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
|
4318 treat double-byte lead characters correctly. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4319 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4320 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
|
4321 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
|
4322 succeeds. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4323 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4324 char *src = path, *dst = path, *end = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4325 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
|
4326 point to the colon following the drive |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4327 letter */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4328 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4329 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4330 assert(((!::IsDBCSLeadByte('/')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4331 && (!::IsDBCSLeadByte('\\')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4332 && (!::IsDBCSLeadByte(':'))), |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4333 "Illegal lead byte"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4334 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4335 /* Check for leading separators */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4336 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4337 while (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4338 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4339 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4340 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4341 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4342 /* 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
|
4343 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
|
4344 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
|
4345 "/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
|
4346 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4347 colon = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4348 *dst++ = ':'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4349 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4350 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4351 src = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4352 if (isfilesep(src[0]) && isfilesep(src[1])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4353 /* 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
|
4354 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
|
4355 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
|
4356 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
|
4357 src = dst = path + 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4358 path[0] = '\\'; /* Force first separator to '\\' */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4359 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4360 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4361 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4362 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4363 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4364 /* 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
|
4365 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
|
4366 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
|
4367 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
|
4368 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4369 while (*src != '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4370 if (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4371 *dst++ = '\\'; src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4372 while (isfilesep(*src)) src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4373 if (*src == '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4374 /* Check for trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4375 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4376 if (colon == dst - 2) break; /* "z:\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4377 if (dst == path + 1) break; /* "\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4378 if (dst == path + 2 && isfilesep(path[0])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4379 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4380 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
|
4381 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
|
4382 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
|
4383 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
|
4384 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
|
4385 directory of the current drive. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4386 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4387 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4388 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
|
4389 remove trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4390 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4391 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4392 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4393 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4394 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4395 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4396 if (*src) *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4397 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4398 } else { /* Copy a single-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4399 char c = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4400 *dst++ = c; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4401 /* Space is not a legal ending character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4402 if (c != ' ') end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4403 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4404 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4405 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4406 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4407 *end = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4408 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4409 /* 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
|
4410 if (colon == dst - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4411 path[2] = '.'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4412 path[3] = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4413 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4414 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4415 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4416 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4417 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4418 // 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
|
4419 // 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
|
4420 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4421 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4422 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4423 long high = (long)(length >> 32); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4424 DWORD ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4425 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4426 if (h == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4427 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4428 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4429 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4430 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4431 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4432 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4433 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4434 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4435 if (::SetEndOfFile(h) == FALSE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4436 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4437 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4438 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4439 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4440 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4441 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4442 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4443 // 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
|
4444 // 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
|
4445 // 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
|
4446 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4447 int os::fsync(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4448 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4449 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4450 if ( (!::FlushFileBuffers(handle)) && |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4451 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4452 /* from winerror.h */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4453 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4454 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4455 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4456 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4457 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4458 static int nonSeekAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4459 static int stdinAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4460 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4461 #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
|
4462 #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
|
4463 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4464 // 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
|
4465 // 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
|
4466 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4467 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4468 jlong cur, end; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4469 struct _stati64 stbuf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4470 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4471 if (::_fstati64(fd, &stbuf64) >= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4472 int mode = stbuf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4473 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4474 int ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4475 long lpbytes; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4476 if (fd == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4477 ret = stdinAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4478 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4479 ret = nonSeekAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4480 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4481 (*bytes) = (jlong)(lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4482 return ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4483 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4484 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4485 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4486 } 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
|
4487 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4488 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4489 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4490 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4491 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4492 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4493 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4494 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4495 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4496 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4497 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4498 // 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
|
4499 // 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
|
4500 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4501 static int nonSeekAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4502 /* 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
|
4503 * (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
|
4504 * connected to an exec'd process). |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4505 * Standard Input is a special case. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4506 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4507 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4508 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4509 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4510 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4511 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4512 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4513 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4514 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
|
4515 /* 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
|
4516 * 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
|
4517 * 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
|
4518 * The only alternative is to raise an Exception, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4519 * which isn't really warranted. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4520 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4521 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4522 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4523 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4524 *pbytes = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4525 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4526 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4527 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4528 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4529 #define MAX_INPUT_EVENTS 2000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4530 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4531 // 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
|
4532 // 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
|
4533 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4534 static int stdinAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4535 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4536 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
|
4537 DWORD numEvents = 0; /* Number of events in buffer */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4538 DWORD i = 0; /* Loop index */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4539 DWORD curLength = 0; /* Position marker */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4540 DWORD actualLength = 0; /* Number of bytes readable */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4541 BOOL error = FALSE; /* Error holder */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4542 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
|
4543 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4544 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
|
4545 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4546 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4547 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4548 /* 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
|
4549 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4550 if (error == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4551 return nonSeekAvailable(fd, pbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4552 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4553 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4554 /* 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
|
4555 if (numEvents > MAX_INPUT_EVENTS) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4556 numEvents = MAX_INPUT_EVENTS; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4557 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4558 |
| 6197 | 4559 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
|
4560 if (lpBuffer == NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4561 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4562 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4563 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4564 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4565 if (error == 0) { |
| 6197 | 4566 os::free(lpBuffer, mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4567 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4568 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4569 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4570 /* 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
|
4571 for(i=0; i<numEvents; i++) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4572 if (lpBuffer[i].EventType == KEY_EVENT) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4573 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4574 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4575 &(lpBuffer[i].Event); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4576 if (keyRecord->bKeyDown == TRUE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4577 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4578 curLength++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4579 if (*keyPressed == '\r') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4580 actualLength = curLength; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4581 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4582 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4583 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4584 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4585 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4586 if(lpBuffer != NULL) { |
| 6197 | 4587 os::free(lpBuffer, mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4588 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4589 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4590 *pbytes = (long) actualLength; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4591 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4592 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4593 |
| 0 | 4594 // Map a block of memory. |
| 6197 | 4595 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4596 char *addr, size_t bytes, bool read_only, |
| 4597 bool allow_exec) { | |
| 4598 HANDLE hFile; | |
| 4599 char* base; | |
| 4600 | |
| 4601 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
| 4602 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
| 4603 if (hFile == NULL) { | |
| 4604 if (PrintMiscellaneous && Verbose) { | |
| 4605 DWORD err = GetLastError(); | |
|
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
4606 tty->print_cr("CreateFile() failed: GetLastError->%ld.", err); |
| 0 | 4607 } |
| 4608 return NULL; | |
| 4609 } | |
| 4610 | |
| 4611 if (allow_exec) { | |
| 4612 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
| 4613 // unless it comes from a PE image (which the shared archive is not.) | |
| 4614 // Even VirtualProtect refuses to give execute access to mapped memory | |
| 4615 // that was not previously executable. | |
| 4616 // | |
| 4617 // Instead, stick the executable region in anonymous memory. Yuck. | |
| 4618 // Penalty is that ~4 pages will not be shareable - in the future | |
| 4619 // we might consider DLLizing the shared archive with a proper PE | |
| 4620 // header so that mapping executable + sharing is possible. | |
| 4621 | |
| 4622 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
| 4623 PAGE_READWRITE); | |
| 4624 if (base == NULL) { | |
| 4625 if (PrintMiscellaneous && Verbose) { | |
| 4626 DWORD err = GetLastError(); | |
| 4627 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
| 4628 } | |
| 4629 CloseHandle(hFile); | |
| 4630 return NULL; | |
| 4631 } | |
| 4632 | |
| 4633 DWORD bytes_read; | |
| 4634 OVERLAPPED overlapped; | |
| 4635 overlapped.Offset = (DWORD)file_offset; | |
| 4636 overlapped.OffsetHigh = 0; | |
| 4637 overlapped.hEvent = NULL; | |
| 4638 // ReadFile guarantees that if the return value is true, the requested | |
| 4639 // number of bytes were read before returning. | |
| 4640 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
| 4641 if (!res) { | |
| 4642 if (PrintMiscellaneous && Verbose) { | |
| 4643 DWORD err = GetLastError(); | |
| 4644 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
| 4645 } | |
| 4646 release_memory(base, bytes); | |
| 4647 CloseHandle(hFile); | |
| 4648 return NULL; | |
| 4649 } | |
| 4650 } else { | |
| 4651 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
| 4652 NULL /*file_name*/); | |
| 4653 if (hMap == NULL) { | |
| 4654 if (PrintMiscellaneous && Verbose) { | |
| 4655 DWORD err = GetLastError(); | |
|
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
4656 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld.", err); |
| 0 | 4657 } |
| 4658 CloseHandle(hFile); | |
| 4659 return NULL; | |
| 4660 } | |
| 4661 | |
| 4662 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
| 4663 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
| 4664 (DWORD)bytes, addr); | |
| 4665 if (base == NULL) { | |
| 4666 if (PrintMiscellaneous && Verbose) { | |
| 4667 DWORD err = GetLastError(); | |
| 4668 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
| 4669 } | |
| 4670 CloseHandle(hMap); | |
| 4671 CloseHandle(hFile); | |
| 4672 return NULL; | |
| 4673 } | |
| 4674 | |
| 4675 if (CloseHandle(hMap) == 0) { | |
| 4676 if (PrintMiscellaneous && Verbose) { | |
| 4677 DWORD err = GetLastError(); | |
| 4678 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
| 4679 } | |
| 4680 CloseHandle(hFile); | |
| 4681 return base; | |
| 4682 } | |
| 4683 } | |
| 4684 | |
| 4685 if (allow_exec) { | |
| 4686 DWORD old_protect; | |
| 4687 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
| 4688 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
| 4689 | |
| 4690 if (!res) { | |
| 4691 if (PrintMiscellaneous && Verbose) { | |
| 4692 DWORD err = GetLastError(); | |
| 4693 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
| 4694 } | |
| 4695 // Don't consider this a hard error, on IA32 even if the | |
| 4696 // VirtualProtect fails, we should still be able to execute | |
| 4697 CloseHandle(hFile); | |
| 4698 return base; | |
| 4699 } | |
| 4700 } | |
| 4701 | |
| 4702 if (CloseHandle(hFile) == 0) { | |
| 4703 if (PrintMiscellaneous && Verbose) { | |
| 4704 DWORD err = GetLastError(); | |
| 4705 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
| 4706 } | |
| 4707 return base; | |
| 4708 } | |
| 4709 | |
| 4710 return base; | |
| 4711 } | |
| 4712 | |
| 4713 | |
| 4714 // Remap a block of memory. | |
| 6197 | 4715 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4716 char *addr, size_t bytes, bool read_only, |
| 4717 bool allow_exec) { | |
| 4718 // This OS does not allow existing memory maps to be remapped so we | |
| 4719 // have to unmap the memory before we remap it. | |
| 4720 if (!os::unmap_memory(addr, bytes)) { | |
| 4721 return NULL; | |
| 4722 } | |
| 4723 | |
| 4724 // There is a very small theoretical window between the unmap_memory() | |
| 4725 // call above and the map_memory() call below where a thread in native | |
| 4726 // code may be able to access an address that is no longer mapped. | |
| 4727 | |
| 6197 | 4728 return os::map_memory(fd, file_name, file_offset, addr, bytes, |
| 4729 read_only, allow_exec); | |
| 0 | 4730 } |
| 4731 | |
| 4732 | |
| 4733 // Unmap a block of memory. | |
| 4734 // Returns true=success, otherwise false. | |
| 4735 | |
| 6197 | 4736 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
| 0 | 4737 BOOL result = UnmapViewOfFile(addr); |
| 4738 if (result == 0) { | |
| 4739 if (PrintMiscellaneous && Verbose) { | |
| 4740 DWORD err = GetLastError(); | |
| 4741 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
| 4742 } | |
| 4743 return false; | |
| 4744 } | |
| 4745 return true; | |
| 4746 } | |
| 4747 | |
| 4748 void os::pause() { | |
| 4749 char filename[MAX_PATH]; | |
| 4750 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 4751 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 4752 } else { | |
| 4753 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 4754 } | |
| 4755 | |
| 4756 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 4757 if (fd != -1) { | |
| 4758 struct stat buf; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4759 ::close(fd); |
| 0 | 4760 while (::stat(filename, &buf) == 0) { |
| 4761 Sleep(100); | |
| 4762 } | |
| 4763 } else { | |
| 4764 jio_fprintf(stderr, | |
| 4765 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 4766 } | |
| 4767 } | |
| 4768 | |
| 11151 | 4769 os::WatcherThreadCrashProtection::WatcherThreadCrashProtection() { |
| 4770 assert(Thread::current()->is_Watcher_thread(), "Must be WatcherThread"); | |
| 4771 } | |
| 4772 | |
| 4773 /* | |
| 4774 * See the caveats for this class in os_windows.hpp | |
| 4775 * Protects the callback call so that raised OS EXCEPTIONS causes a jump back | |
| 4776 * into this method and returns false. If no OS EXCEPTION was raised, returns | |
| 4777 * true. | |
| 4778 * The callback is supposed to provide the method that should be protected. | |
| 4779 */ | |
| 4780 bool os::WatcherThreadCrashProtection::call(os::CrashProtectionCallback& cb) { | |
| 4781 assert(Thread::current()->is_Watcher_thread(), "Only for WatcherThread"); | |
| 4782 assert(!WatcherThread::watcher_thread()->has_crash_protection(), | |
| 4783 "crash_protection already set?"); | |
| 4784 | |
| 4785 bool success = true; | |
| 4786 __try { | |
| 4787 WatcherThread::watcher_thread()->set_crash_protection(this); | |
| 4788 cb.call(); | |
| 4789 } __except(EXCEPTION_EXECUTE_HANDLER) { | |
| 4790 // only for protection, nothing to do | |
| 4791 success = false; | |
| 4792 } | |
| 4793 WatcherThread::watcher_thread()->set_crash_protection(NULL); | |
| 4794 return success; | |
| 4795 } | |
| 4796 | |
| 0 | 4797 // An Event wraps a win32 "CreateEvent" kernel handle. |
| 4798 // | |
| 4799 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
| 4800 // | |
| 4801 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
| 4802 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
| 4803 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
| 4804 // In addition, an unpark() operation might fetch the handle field, but the | |
| 4805 // event could recycle between the fetch and the SetEvent() operation. | |
| 4806 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
| 4807 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
| 4808 // on an stale but recycled handle would be harmless, but in practice this might | |
| 4809 // confuse other non-Sun code, so it's not a viable approach. | |
| 4810 // | |
| 4811 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
| 4812 // with the Event. The event handle is never closed. This could be construed | |
| 4813 // as handle leakage, but only up to the maximum # of threads that have been extant | |
| 4814 // at any one time. This shouldn't be an issue, as windows platforms typically | |
| 4815 // permit a process to have hundreds of thousands of open handles. | |
| 4816 // | |
| 4817 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
| 4818 // and release unused handles. | |
| 4819 // | |
| 4820 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
| 4821 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
| 4822 // | |
| 4823 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
| 4824 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
| 4825 // | |
| 4826 // We use (2). | |
| 4827 // | |
| 4828 // TODO-FIXME: | |
| 4829 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
| 4830 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
| 4831 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
| 4832 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
| 4833 // into a single win32 CreateEvent() handle. | |
| 4834 // | |
| 4835 // _Event transitions in park() | |
| 4836 // -1 => -1 : illegal | |
| 4837 // 1 => 0 : pass - return immediately | |
| 4838 // 0 => -1 : block | |
| 4839 // | |
| 4840 // _Event serves as a restricted-range semaphore : | |
| 4841 // -1 : thread is blocked | |
| 4842 // 0 : neutral - thread is running or ready | |
| 4843 // 1 : signaled - thread is running or ready | |
| 4844 // | |
| 4845 // Another possible encoding of _Event would be | |
| 4846 // with explicit "PARKED" and "SIGNALED" bits. | |
| 4847 | |
| 4848 int os::PlatformEvent::park (jlong Millis) { | |
| 4849 guarantee (_ParkHandle != NULL , "Invariant") ; | |
| 4850 guarantee (Millis > 0 , "Invariant") ; | |
| 4851 int v ; | |
| 4852 | |
| 4853 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
| 4854 // the initial park() operation. | |
| 4855 | |
| 4856 for (;;) { | |
| 4857 v = _Event ; | |
| 4858 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4859 } | |
| 4860 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4861 if (v != 0) return OS_OK ; | |
| 4862 | |
| 4863 // Do this the hard way by blocking ... | |
| 4864 // TODO: consider a brief spin here, gated on the success of recent | |
| 4865 // spin attempts by this thread. | |
| 4866 // | |
| 4867 // We decompose long timeouts into series of shorter timed waits. | |
| 4868 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
| 4869 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
| 4870 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
| 4871 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
| 4872 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
| 4873 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
| 4874 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
| 4875 // for the already waited time. This policy does not admit any new outcomes. | |
| 4876 // In the future, however, we might want to track the accumulated wait time and | |
| 4877 // adjust Millis accordingly if we encounter a spurious wakeup. | |
| 4878 | |
| 4879 const int MAXTIMEOUT = 0x10000000 ; | |
| 4880 DWORD rv = WAIT_TIMEOUT ; | |
| 4881 while (_Event < 0 && Millis > 0) { | |
| 4882 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
| 4883 if (Millis > MAXTIMEOUT) { | |
| 4884 prd = MAXTIMEOUT ; | |
| 4885 } | |
| 4886 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
| 4887 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
| 4888 if (rv == WAIT_TIMEOUT) { | |
| 4889 Millis -= prd ; | |
| 4890 } | |
| 4891 } | |
| 4892 v = _Event ; | |
| 4893 _Event = 0 ; | |
|
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changeset
|
4894 // see comment at end of os::PlatformEvent::park() below: |
| 0 | 4895 OrderAccess::fence() ; |
| 4896 // If we encounter a nearly simultanous timeout expiry and unpark() | |
| 4897 // we return OS_OK indicating we awoke via unpark(). | |
| 4898 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
| 4899 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
| 4900 } | |
| 4901 | |
| 4902 void os::PlatformEvent::park () { | |
| 4903 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4904 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 4905 // may call park(). | |
| 4906 int v ; | |
| 4907 for (;;) { | |
| 4908 v = _Event ; | |
| 4909 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4910 } | |
| 4911 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4912 if (v != 0) return ; | |
| 4913 | |
| 4914 // Do this the hard way by blocking ... | |
| 4915 // TODO: consider a brief spin here, gated on the success of recent | |
| 4916 // spin attempts by this thread. | |
| 4917 while (_Event < 0) { | |
| 4918 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
| 4919 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
| 4920 } | |
| 4921 | |
| 4922 // Usually we'll find _Event == 0 at this point, but as | |
| 4923 // an optional optimization we clear it, just in case can | |
| 4924 // multiple unpark() operations drove _Event up to 1. | |
| 4925 _Event = 0 ; | |
| 4926 OrderAccess::fence() ; | |
| 4927 guarantee (_Event >= 0, "invariant") ; | |
| 4928 } | |
| 4929 | |
| 4930 void os::PlatformEvent::unpark() { | |
| 4931 guarantee (_ParkHandle != NULL, "Invariant") ; | |
|
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|
4932 |
|
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|
4933 // Transitions for _Event: |
|
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|
4934 // 0 :=> 1 |
|
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|
4935 // 1 :=> 1 |
|
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changeset
|
4936 // -1 :=> either 0 or 1; must signal target thread |
|
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diff
changeset
|
4937 // That is, we can safely transition _Event from -1 to either |
|
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changeset
|
4938 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
|
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|
4939 // unpark() calls. |
|
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|
4940 // See also: "Semaphores in Plan 9" by Mullender & Cox |
|
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|
4941 // |
|
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|
4942 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
|
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changeset
|
4943 // that it will take two back-to-back park() calls for the owning |
|
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changeset
|
4944 // thread to block. This has the benefit of forcing a spurious return |
|
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|
4945 // from the first park() call after an unpark() call which will help |
|
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|
4946 // shake out uses of park() and unpark() without condition variables. |
|
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|
4947 |
|
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|
4948 if (Atomic::xchg(1, &_Event) >= 0) return; |
|
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|
4949 |
|
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|
4950 ::SetEvent(_ParkHandle); |
| 0 | 4951 } |
| 4952 | |
| 4953 | |
| 4954 // JSR166 | |
| 4955 // ------------------------------------------------------- | |
| 4956 | |
| 4957 /* | |
| 4958 * The Windows implementation of Park is very straightforward: Basic | |
| 4959 * operations on Win32 Events turn out to have the right semantics to | |
| 4960 * use them directly. We opportunistically resuse the event inherited | |
| 4961 * from Monitor. | |
| 4962 */ | |
| 4963 | |
| 4964 | |
| 4965 void Parker::park(bool isAbsolute, jlong time) { | |
| 4966 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4967 // First, demultiplex/decode time arguments | |
| 4968 if (time < 0) { // don't wait | |
| 4969 return; | |
| 4970 } | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
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1681
diff
changeset
|
4971 else if (time == 0 && !isAbsolute) { |
| 0 | 4972 time = INFINITE; |
| 4973 } | |
| 4974 else if (isAbsolute) { | |
| 4975 time -= os::javaTimeMillis(); // convert to relative time | |
| 4976 if (time <= 0) // already elapsed | |
| 4977 return; | |
| 4978 } | |
| 4979 else { // relative | |
| 4980 time /= 1000000; // Must coarsen from nanos to millis | |
| 4981 if (time == 0) // Wait for the minimal time unit if zero | |
| 4982 time = 1; | |
| 4983 } | |
| 4984 | |
| 4985 JavaThread* thread = (JavaThread*)(Thread::current()); | |
| 4986 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 4987 JavaThread *jt = (JavaThread *)thread; | |
| 4988 | |
| 4989 // Don't wait if interrupted or already triggered | |
| 4990 if (Thread::is_interrupted(thread, false) || | |
| 4991 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
| 4992 ResetEvent(_ParkEvent); | |
| 4993 return; | |
| 4994 } | |
| 4995 else { | |
| 4996 ThreadBlockInVM tbivm(jt); | |
| 4997 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 4998 jt->set_suspend_equivalent(); | |
| 4999 | |
| 5000 WaitForSingleObject(_ParkEvent, time); | |
| 5001 ResetEvent(_ParkEvent); | |
| 5002 | |
| 5003 // If externally suspended while waiting, re-suspend | |
| 5004 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 5005 jt->java_suspend_self(); | |
| 5006 } | |
| 5007 } | |
| 5008 } | |
| 5009 | |
| 5010 void Parker::unpark() { | |
| 5011 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 5012 SetEvent(_ParkEvent); | |
| 5013 } | |
| 5014 | |
| 5015 // Run the specified command in a separate process. Return its exit value, | |
| 5016 // or -1 on failure (e.g. can't create a new process). | |
| 5017 int os::fork_and_exec(char* cmd) { | |
| 5018 STARTUPINFO si; | |
| 5019 PROCESS_INFORMATION pi; | |
| 5020 | |
| 5021 memset(&si, 0, sizeof(si)); | |
| 5022 si.cb = sizeof(si); | |
| 5023 memset(&pi, 0, sizeof(pi)); | |
| 5024 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
| 5025 cmd, // command line | |
| 5026 NULL, // process security attribute | |
| 5027 NULL, // thread security attribute | |
| 5028 TRUE, // inherits system handles | |
| 5029 0, // no creation flags | |
| 5030 NULL, // use parent's environment block | |
| 5031 NULL, // use parent's starting directory | |
| 5032 &si, // (in) startup information | |
| 5033 &pi); // (out) process information | |
| 5034 | |
| 5035 if (rslt) { | |
| 5036 // Wait until child process exits. | |
| 5037 WaitForSingleObject(pi.hProcess, INFINITE); | |
| 5038 | |
| 5039 DWORD exit_code; | |
| 5040 GetExitCodeProcess(pi.hProcess, &exit_code); | |
| 5041 | |
| 5042 // Close process and thread handles. | |
| 5043 CloseHandle(pi.hProcess); | |
| 5044 CloseHandle(pi.hThread); | |
| 5045 | |
| 5046 return (int)exit_code; | |
| 5047 } else { | |
| 5048 return -1; | |
| 5049 } | |
| 5050 } | |
| 5051 | |
| 5052 //-------------------------------------------------------------------------------------------------- | |
| 5053 // Non-product code | |
| 5054 | |
| 5055 static int mallocDebugIntervalCounter = 0; | |
| 5056 static int mallocDebugCounter = 0; | |
| 5057 bool os::check_heap(bool force) { | |
| 5058 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
| 5059 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
| 5060 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
| 5061 // wrong; at these points, eax contains the address of the offending block (I think). | |
| 5062 // To get to the exlicit error message(s) below, just continue twice. | |
| 5063 HANDLE heap = GetProcessHeap(); | |
| 5064 { HeapLock(heap); | |
| 5065 PROCESS_HEAP_ENTRY phe; | |
| 5066 phe.lpData = NULL; | |
| 5067 while (HeapWalk(heap, &phe) != 0) { | |
| 5068 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
| 5069 !HeapValidate(heap, 0, phe.lpData)) { | |
| 5070 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
| 5071 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
| 5072 fatal("corrupted C heap"); | |
| 5073 } | |
| 5074 } | |
|
4750
b16494a69d3d
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4720
diff
changeset
|
5075 DWORD err = GetLastError(); |
| 0 | 5076 if (err != ERROR_NO_MORE_ITEMS && err != ERROR_CALL_NOT_IMPLEMENTED) { |
|
1490
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6888954: argument formatting for assert() and friends
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parents:
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diff
changeset
|
5077 fatal(err_msg("heap walk aborted with error %d", err)); |
| 0 | 5078 } |
| 5079 HeapUnlock(heap); | |
| 5080 } | |
| 5081 mallocDebugIntervalCounter = 0; | |
| 5082 } | |
| 5083 return true; | |
| 5084 } | |
| 5085 | |
| 5086 | |
|
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changeset
|
5087 bool os::find(address addr, outputStream* st) { |
| 0 | 5088 // Nothing yet |
| 5089 return false; | |
| 5090 } | |
| 5091 | |
| 5092 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
| 5093 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
| 5094 | |
| 5095 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 5096 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
| 5097 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
| 5098 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 5099 | |
| 5100 if (os::is_memory_serialize_page(thread, addr)) | |
| 5101 return EXCEPTION_CONTINUE_EXECUTION; | |
| 5102 } | |
| 5103 | |
| 5104 return EXCEPTION_CONTINUE_SEARCH; | |
| 5105 } | |
| 5106 | |
|
1681
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|
5107 // We don't build a headless jre for Windows |
|
126ea7725993
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changeset
|
5108 bool os::is_headless_jre() { return false; } |
|
126ea7725993
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diff
changeset
|
5109 |
| 8872 | 5110 static jint initSock() { |
|
1980
828eafbd85cc
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diff
changeset
|
5111 WSADATA wsadata; |
|
828eafbd85cc
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diff
changeset
|
5112 |
|
3833
b1cbb0907b36
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changeset
|
5113 if (!os::WinSock2Dll::WinSock2Available()) { |
| 8872 | 5114 jio_fprintf(stderr, "Could not load Winsock (error: %d)\n", |
|
3833
b1cbb0907b36
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|
5115 ::GetLastError()); |
| 8872 | 5116 return JNI_ERR; |
| 5117 } | |
| 5118 | |
| 5119 if (os::WinSock2Dll::WSAStartup(MAKEWORD(2,2), &wsadata) != 0) { | |
| 5120 jio_fprintf(stderr, "Could not initialize Winsock (error: %d)\n", | |
| 5121 ::GetLastError()); | |
| 5122 return JNI_ERR; | |
| 5123 } | |
| 5124 return JNI_OK; | |
|
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828eafbd85cc
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diff
changeset
|
5125 } |
|
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diff
changeset
|
5126 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5127 struct hostent* os::get_host_by_name(char* name) { |
|
3833
b1cbb0907b36
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diff
changeset
|
5128 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
|
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828eafbd85cc
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diff
changeset
|
5129 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
5130 |
|
828eafbd85cc
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diff
changeset
|
5131 int os::socket_close(int fd) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
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diff
changeset
|
5132 return ::closesocket(fd); |
|
1980
828eafbd85cc
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diff
changeset
|
5133 } |
|
828eafbd85cc
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diff
changeset
|
5134 |
|
828eafbd85cc
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diff
changeset
|
5135 int os::socket_available(int fd, jint *pbytes) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5136 int ret = ::ioctlsocket(fd, FIONREAD, (u_long*)pbytes); |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
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5903
diff
changeset
|
5137 return (ret < 0) ? 0 : 1; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5138 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5139 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5140 int os::socket(int domain, int type, int protocol) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5141 return ::socket(domain, type, protocol); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5142 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5143 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5144 int os::listen(int fd, int count) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5145 return ::listen(fd, count); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5146 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5147 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5148 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
|
5149 return ::connect(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5150 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5151 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5152 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
|
5153 return ::accept(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5154 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5155 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5156 int os::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
|
5157 struct sockaddr* to, socklen_t tolen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5158 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5159 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
|
5160 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5161 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5162 int os::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
|
5163 sockaddr* from, socklen_t* fromlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5164 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5165 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
|
5166 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5167 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5168 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
|
5169 return ::recv(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5170 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5171 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5172 int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
|
6044
ec15e8f6e4f1
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twisti
parents:
5903
diff
changeset
|
5173 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5174 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5175 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5176 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
|
5177 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5178 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5179 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5180 int os::timeout(int fd, long timeout) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5181 fd_set tbl; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5182 struct timeval t; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5183 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5184 t.tv_sec = timeout / 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5185 t.tv_usec = (timeout % 1000) * 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5186 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5187 tbl.fd_count = 1; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5188 tbl.fd_array[0] = fd; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5189 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5190 return ::select(1, &tbl, 0, 0, &t); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5191 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5192 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5193 int os::get_host_name(char* name, int namelen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5194 return ::gethostname(name, namelen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5195 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5196 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5197 int os::socket_shutdown(int fd, int howto) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5198 return ::shutdown(fd, howto); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5199 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5200 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5201 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
|
5202 return ::bind(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5203 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5204 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5205 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
|
5206 return ::getsockname(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5207 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5208 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5209 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
|
5210 char* optval, socklen_t* optlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5211 return ::getsockopt(fd, level, optname, optval, optlen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5212 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5213 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5214 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
|
5215 const char* optval, socklen_t optlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5216 return ::setsockopt(fd, level, optname, optval, optlen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5217 } |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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3800
diff
changeset
|
5218 |
| 10405 | 5219 // WINDOWS CONTEXT Flags for THREAD_SAMPLING |
| 5220 #if defined(IA32) | |
| 5221 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT | CONTEXT_EXTENDED_REGISTERS) | |
| 5222 #elif defined (AMD64) | |
| 5223 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
| 5224 #endif | |
| 5225 | |
| 5226 // returns true if thread could be suspended, | |
| 5227 // false otherwise | |
| 5228 static bool do_suspend(HANDLE* h) { | |
| 5229 if (h != NULL) { | |
| 5230 if (SuspendThread(*h) != ~0) { | |
| 5231 return true; | |
| 5232 } | |
| 5233 } | |
| 5234 return false; | |
| 5235 } | |
| 5236 | |
| 5237 // resume the thread | |
| 5238 // calling resume on an active thread is a no-op | |
| 5239 static void do_resume(HANDLE* h) { | |
| 5240 if (h != NULL) { | |
| 5241 ResumeThread(*h); | |
| 5242 } | |
| 5243 } | |
| 5244 | |
| 5245 // retrieve a suspend/resume context capable handle | |
| 5246 // from the tid. Caller validates handle return value. | |
| 5247 void get_thread_handle_for_extended_context(HANDLE* h, OSThread::thread_id_t tid) { | |
| 5248 if (h != NULL) { | |
| 5249 *h = OpenThread(THREAD_SUSPEND_RESUME | THREAD_GET_CONTEXT | THREAD_QUERY_INFORMATION, FALSE, tid); | |
| 5250 } | |
| 5251 } | |
| 5252 | |
| 5253 // | |
| 5254 // Thread sampling implementation | |
| 5255 // | |
| 5256 void os::SuspendedThreadTask::internal_do_task() { | |
| 5257 CONTEXT ctxt; | |
| 5258 HANDLE h = NULL; | |
| 5259 | |
| 5260 // get context capable handle for thread | |
| 5261 get_thread_handle_for_extended_context(&h, _thread->osthread()->thread_id()); | |
| 5262 | |
| 5263 // sanity | |
| 5264 if (h == NULL || h == INVALID_HANDLE_VALUE) { | |
| 5265 return; | |
| 5266 } | |
| 5267 | |
| 5268 // suspend the thread | |
| 5269 if (do_suspend(&h)) { | |
| 5270 ctxt.ContextFlags = sampling_context_flags; | |
| 5271 // get thread context | |
| 5272 GetThreadContext(h, &ctxt); | |
| 5273 SuspendedThreadTaskContext context(_thread, &ctxt); | |
| 5274 // pass context to Thread Sampling impl | |
| 5275 do_task(context); | |
| 5276 // resume thread | |
| 5277 do_resume(&h); | |
| 5278 } | |
| 5279 | |
| 5280 // close handle | |
| 5281 CloseHandle(h); | |
| 5282 } | |
| 5283 | |
|
3833
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changeset
|
5284 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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diff
changeset
|
5285 // Kernel32 API |
|
b1cbb0907b36
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3800
diff
changeset
|
5286 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
| 3885 | 5287 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
| 5288 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
| 5289 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
| 6197 | 5290 typedef USHORT (WINAPI* RtlCaptureStackBackTrace_Fn)(ULONG, ULONG, PVOID*, PULONG); |
| 3885 | 5291 |
|
3833
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zgu
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3800
diff
changeset
|
5292 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
| 3885 | 5293 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
| 5294 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
| 5295 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
| 6197 | 5296 RtlCaptureStackBackTrace_Fn os::Kernel32Dll::_RtlCaptureStackBackTrace = NULL; |
| 5297 | |
| 5298 | |
|
3833
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changeset
|
5299 BOOL os::Kernel32Dll::initialized = FALSE; |
|
b1cbb0907b36
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diff
changeset
|
5300 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5301 assert(initialized && _GetLargePageMinimum != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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diff
changeset
|
5302 "GetLargePageMinimumAvailable() not yet called"); |
|
b1cbb0907b36
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zgu
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diff
changeset
|
5303 return _GetLargePageMinimum(); |
|
b1cbb0907b36
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parents:
3800
diff
changeset
|
5304 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5305 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5306 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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diff
changeset
|
5307 if (!initialized) { |
|
b1cbb0907b36
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zgu
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diff
changeset
|
5308 initialize(); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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diff
changeset
|
5309 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5310 return _GetLargePageMinimum != NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5311 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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diff
changeset
|
5312 |
| 3885 | 5313 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
| 5314 if (!initialized) { | |
| 5315 initialize(); | |
| 5316 } | |
| 5317 return _VirtualAllocExNuma != NULL; | |
| 5318 } | |
| 5319 | |
| 5320 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
| 5321 assert(initialized && _VirtualAllocExNuma != NULL, | |
| 5322 "NUMACallsAvailable() not yet called"); | |
| 5323 | |
| 5324 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
| 5325 } | |
| 5326 | |
| 5327 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
| 5328 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
| 5329 "NUMACallsAvailable() not yet called"); | |
| 5330 | |
| 5331 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
| 5332 } | |
| 5333 | |
| 5334 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
| 5335 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
| 5336 "NUMACallsAvailable() not yet called"); | |
| 5337 | |
| 5338 return _GetNumaNodeProcessorMask(node, proc_mask); | |
| 5339 } | |
| 5340 | |
| 6197 | 5341 USHORT os::Kernel32Dll::RtlCaptureStackBackTrace(ULONG FrameToSkip, |
| 5342 ULONG FrameToCapture, PVOID* BackTrace, PULONG BackTraceHash) { | |
| 5343 if (!initialized) { | |
| 5344 initialize(); | |
| 5345 } | |
| 5346 | |
| 5347 if (_RtlCaptureStackBackTrace != NULL) { | |
| 5348 return _RtlCaptureStackBackTrace(FrameToSkip, FrameToCapture, | |
| 5349 BackTrace, BackTraceHash); | |
| 5350 } else { | |
| 5351 return 0; | |
| 5352 } | |
| 5353 } | |
| 3885 | 5354 |
| 5355 void os::Kernel32Dll::initializeCommon() { | |
| 5356 if (!initialized) { | |
| 5357 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
| 5358 assert(handle != NULL, "Just check"); | |
| 5359 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
| 5360 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
| 5361 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
| 5362 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
| 6197 | 5363 _RtlCaptureStackBackTrace = (RtlCaptureStackBackTrace_Fn)::GetProcAddress(handle, "RtlCaptureStackBackTrace"); |
| 3885 | 5364 initialized = TRUE; |
| 5365 } | |
| 5366 } | |
| 5367 | |
| 5368 | |
|
3833
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5369 |
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|
5370 #ifndef JDK6_OR_EARLIER |
|
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5371 |
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5372 void os::Kernel32Dll::initialize() { |
| 3885 | 5373 initializeCommon(); |
|
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5374 } |
|
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|
5375 |
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|
5376 |
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5377 // Kernel32 API |
|
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5378 inline BOOL os::Kernel32Dll::SwitchToThread() { |
|
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5379 return ::SwitchToThread(); |
|
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5380 } |
|
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|
5381 |
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5382 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
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5383 return true; |
|
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|
5384 } |
|
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|
5385 |
|
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|
5386 // Help tools |
|
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5387 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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5388 return true; |
|
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|
5389 } |
|
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|
5390 |
|
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|
5391 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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5392 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
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|
5393 } |
|
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|
5394 |
|
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|
5395 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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5396 return ::Module32First(hSnapshot, lpme); |
|
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|
5397 } |
|
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|
5398 |
|
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|
5399 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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5400 return ::Module32Next(hSnapshot, lpme); |
|
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|
5401 } |
|
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|
5402 |
|
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|
5403 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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|
5404 ::GetNativeSystemInfo(lpSystemInfo); |
|
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|
5405 } |
|
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|
5406 |
|
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|
5407 // PSAPI API |
|
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|
5408 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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5409 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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|
5410 } |
|
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|
5411 |
|
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|
5412 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5413 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5414 } |
|
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|
5415 |
|
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|
5416 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5417 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5418 } |
|
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|
5419 |
|
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|
5420 inline BOOL os::PSApiDll::PSApiAvailable() { |
|
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|
5421 return true; |
|
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|
5422 } |
|
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|
5423 |
|
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|
5424 |
|
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|
5425 // WinSock2 API |
|
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|
5426 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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|
5427 return ::WSAStartup(wVersionRequested, lpWSAData); |
|
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|
5428 } |
|
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|
5429 |
|
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|
5430 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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|
5431 return ::gethostbyname(name); |
|
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|
5432 } |
|
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|
5433 |
|
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|
5434 inline BOOL os::WinSock2Dll::WinSock2Available() { |
|
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|
5435 return true; |
|
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|
5436 } |
|
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|
5437 |
|
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|
5438 // Advapi API |
|
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5439 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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5440 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
|
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|
5441 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
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|
5442 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
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|
5443 BufferLength, PreviousState, ReturnLength); |
|
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|
5444 } |
|
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|
5445 |
|
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|
5446 inline BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
|
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|
5447 PHANDLE TokenHandle) { |
|
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|
5448 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
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|
5449 } |
|
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|
5450 |
|
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|
5451 inline BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
|
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|
5452 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
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|
5453 } |
|
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|
5454 |
|
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|
5455 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
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|
5456 return true; |
|
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|
5457 } |
|
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|
5458 |
|
12117
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|
5459 void* os::get_default_process_handle() { |
|
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|
5460 return (void*)GetModuleHandle(NULL); |
|
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|
5461 } |
|
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|
5462 |
|
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|
5463 // Builds a platform dependent Agent_OnLoad_<lib_name> function name |
|
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|
5464 // which is used to find statically linked in agents. |
|
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|
5465 // Additionally for windows, takes into account __stdcall names. |
|
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|
5466 // Parameters: |
|
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|
5467 // sym_name: Symbol in library we are looking for |
|
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|
5468 // lib_name: Name of library to look in, NULL for shared libs. |
|
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|
5469 // is_absolute_path == true if lib_name is absolute path to agent |
|
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|
5470 // such as "C:/a/b/L.dll" |
|
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|
5471 // == false if only the base name of the library is passed in |
|
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|
5472 // such as "L" |
|
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|
5473 char* os::build_agent_function_name(const char *sym_name, const char *lib_name, |
|
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|
5474 bool is_absolute_path) { |
|
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|
5475 char *agent_entry_name; |
|
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|
5476 size_t len; |
|
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|
5477 size_t name_len; |
|
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|
5478 size_t prefix_len = strlen(JNI_LIB_PREFIX); |
|
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|
5479 size_t suffix_len = strlen(JNI_LIB_SUFFIX); |
|
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|
5480 const char *start; |
|
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|
5481 |
|
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|
5482 if (lib_name != NULL) { |
|
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|
5483 len = name_len = strlen(lib_name); |
|
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|
5484 if (is_absolute_path) { |
|
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|
5485 // Need to strip path, prefix and suffix |
|
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|
5486 if ((start = strrchr(lib_name, *os::file_separator())) != NULL) { |
|
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|
5487 lib_name = ++start; |
|
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|
5488 } else { |
| 12220 | 5489 // Need to check for drive prefix |
|
12117
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|
5490 if ((start = strchr(lib_name, ':')) != NULL) { |
|
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|
5491 lib_name = ++start; |
|
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|
5492 } |
|
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|
5493 } |
|
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|
5494 if (len <= (prefix_len + suffix_len)) { |
|
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|
5495 return NULL; |
|
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|
5496 } |
|
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|
5497 lib_name += prefix_len; |
|
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|
5498 name_len = strlen(lib_name) - suffix_len; |
|
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|
5499 } |
|
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|
5500 } |
|
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|
5501 len = (lib_name != NULL ? name_len : 0) + strlen(sym_name) + 2; |
|
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|
5502 agent_entry_name = NEW_C_HEAP_ARRAY_RETURN_NULL(char, len, mtThread); |
|
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|
5503 if (agent_entry_name == NULL) { |
|
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|
5504 return NULL; |
|
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|
5505 } |
|
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|
5506 if (lib_name != NULL) { |
|
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|
5507 const char *p = strrchr(sym_name, '@'); |
|
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|
5508 if (p != NULL && p != sym_name) { |
|
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|
5509 // sym_name == _Agent_OnLoad@XX |
|
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|
5510 strncpy(agent_entry_name, sym_name, (p - sym_name)); |
|
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|
5511 agent_entry_name[(p-sym_name)] = '\0'; |
|
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|
5512 // agent_entry_name == _Agent_OnLoad |
|
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|
5513 strcat(agent_entry_name, "_"); |
|
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|
5514 strncat(agent_entry_name, lib_name, name_len); |
|
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|
5515 strcat(agent_entry_name, p); |
|
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|
5516 // agent_entry_name == _Agent_OnLoad_lib_name@XX |
|
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|
5517 } else { |
|
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|
5518 strcpy(agent_entry_name, sym_name); |
|
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|
5519 strcat(agent_entry_name, "_"); |
|
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|
5520 strncat(agent_entry_name, lib_name, name_len); |
|
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|
5521 } |
|
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|
5522 } else { |
|
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changeset
|
5523 strcpy(agent_entry_name, sym_name); |
|
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|
5524 } |
|
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|
5525 return agent_entry_name; |
|
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|
5526 } |
|
f92b82d454fa
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changeset
|
5527 |
|
3833
b1cbb0907b36
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|
5528 #else |
|
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|
5529 // Kernel32 API |
|
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|
5530 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
|
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|
5531 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
|
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|
5532 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
5533 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
5534 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
|
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|
5535 |
|
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changeset
|
5536 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
|
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|
5537 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
|
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|
5538 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
|
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|
5539 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
|
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|
5540 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
|
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changeset
|
5541 |
|
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|
5542 void os::Kernel32Dll::initialize() { |
|
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|
5543 if (!initialized) { |
|
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|
5544 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
|
b1cbb0907b36
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|
5545 assert(handle != NULL, "Just check"); |
|
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|
5546 |
|
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changeset
|
5547 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
|
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|
5548 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
|
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|
5549 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
|
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|
5550 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
|
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|
5551 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
|
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|
5552 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
| 3885 | 5553 initializeCommon(); // resolve the functions that always need resolving |
|
3833
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|
5554 |
|
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|
5555 initialized = TRUE; |
|
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|
5556 } |
|
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|
5557 } |
|
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|
5558 |
|
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|
5559 BOOL os::Kernel32Dll::SwitchToThread() { |
|
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|
5560 assert(initialized && _SwitchToThread != NULL, |
|
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|
5561 "SwitchToThreadAvailable() not yet called"); |
|
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|
5562 return _SwitchToThread(); |
|
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|
5563 } |
|
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changeset
|
5564 |
|
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changeset
|
5565 |
|
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changeset
|
5566 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
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|
5567 if (!initialized) { |
|
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|
5568 initialize(); |
|
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|
5569 } |
|
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|
5570 return _SwitchToThread != NULL; |
|
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|
5571 } |
|
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|
5572 |
|
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|
5573 // Help tools |
|
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|
5574 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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|
5575 if (!initialized) { |
|
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|
5576 initialize(); |
|
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|
5577 } |
|
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changeset
|
5578 return _CreateToolhelp32Snapshot != NULL && |
|
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5579 _Module32First != NULL && |
|
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5580 _Module32Next != NULL; |
|
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|
5581 } |
|
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|
5582 |
|
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5583 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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|
5584 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
|
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|
5585 "HelpToolsAvailable() not yet called"); |
|
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|
5586 |
|
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|
5587 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
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|
5588 } |
|
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|
5589 |
|
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|
5590 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5591 assert(initialized && _Module32First != NULL, |
|
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|
5592 "HelpToolsAvailable() not yet called"); |
|
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|
5593 |
|
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|
5594 return _Module32First(hSnapshot, lpme); |
|
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|
5595 } |
|
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|
5596 |
|
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|
5597 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5598 assert(initialized && _Module32Next != NULL, |
|
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|
5599 "HelpToolsAvailable() not yet called"); |
|
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|
5600 |
|
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|
5601 return _Module32Next(hSnapshot, lpme); |
|
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|
5602 } |
|
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|
5603 |
|
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|
5604 |
|
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|
5605 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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|
5606 if (!initialized) { |
|
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|
5607 initialize(); |
|
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|
5608 } |
|
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|
5609 return _GetNativeSystemInfo != NULL; |
|
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|
5610 } |
|
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|
5611 |
|
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|
5612 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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|
5613 assert(initialized && _GetNativeSystemInfo != NULL, |
|
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|
5614 "GetNativeSystemInfoAvailable() not yet called"); |
|
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|
5615 |
|
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|
5616 _GetNativeSystemInfo(lpSystemInfo); |
|
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|
5617 } |
|
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|
5618 |
|
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|
5619 // PSAPI API |
|
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|
5620 |
|
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|
5621 |
|
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|
5622 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
|
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|
5623 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
|
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|
5624 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
|
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|
5625 |
|
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|
5626 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
|
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|
5627 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
|
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|
5628 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
|
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|
5629 BOOL os::PSApiDll::initialized = FALSE; |
|
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|
5630 |
|
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|
5631 void os::PSApiDll::initialize() { |
|
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|
5632 if (!initialized) { |
|
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|
5633 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
|
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|
5634 if (handle != NULL) { |
|
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|
5635 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
|
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|
5636 "EnumProcessModules"); |
|
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|
5637 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
|
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|
5638 "GetModuleFileNameExA"); |
|
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|
5639 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
|
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|
5640 "GetModuleInformation"); |
|
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|
5641 } |
|
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|
5642 initialized = TRUE; |
|
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|
5643 } |
|
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|
5644 } |
|
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|
5645 |
|
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changeset
|
5646 |
|
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changeset
|
5647 |
|
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|
5648 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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|
5649 assert(initialized && _EnumProcessModules != NULL, |
|
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|
5650 "PSApiAvailable() not yet called"); |
|
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|
5651 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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|
5652 } |
|
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|
5653 |
|
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|
5654 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5655 assert(initialized && _GetModuleFileNameEx != NULL, |
|
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|
5656 "PSApiAvailable() not yet called"); |
|
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|
5657 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5658 } |
|
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changeset
|
5659 |
|
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|
5660 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5661 assert(initialized && _GetModuleInformation != NULL, |
|
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|
5662 "PSApiAvailable() not yet called"); |
|
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|
5663 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5664 } |
|
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|
5665 |
|
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|
5666 BOOL os::PSApiDll::PSApiAvailable() { |
|
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|
5667 if (!initialized) { |
|
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|
5668 initialize(); |
|
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|
5669 } |
|
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|
5670 return _EnumProcessModules != NULL && |
|
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|
5671 _GetModuleFileNameEx != NULL && |
|
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|
5672 _GetModuleInformation != NULL; |
|
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|
5673 } |
|
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changeset
|
5674 |
|
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changeset
|
5675 |
|
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|
5676 // WinSock2 API |
|
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|
5677 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
|
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|
5678 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
|
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changeset
|
5679 |
|
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|
5680 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
|
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|
5681 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
|
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|
5682 BOOL os::WinSock2Dll::initialized = FALSE; |
|
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|
5683 |
|
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|
5684 void os::WinSock2Dll::initialize() { |
|
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|
5685 if (!initialized) { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5686 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5687 if (handle != NULL) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5688 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5689 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5690 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5691 initialized = TRUE; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5692 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5693 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5694 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5695 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5696 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5697 assert(initialized && _WSAStartup != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5698 "WinSock2Available() not yet called"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5699 return _WSAStartup(wVersionRequested, lpWSAData); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5700 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5701 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5702 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5703 assert(initialized && _gethostbyname != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5704 "WinSock2Available() not yet called"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5705 return _gethostbyname(name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5706 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5707 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5708 BOOL os::WinSock2Dll::WinSock2Available() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5709 if (!initialized) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5710 initialize(); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5711 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5712 return _WSAStartup != NULL && |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5713 _gethostbyname != NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5714 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5715 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5716 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5717 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5718 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5719 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5720 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5721 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5722 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5723 BOOL os::Advapi32Dll::initialized = FALSE; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5724 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5725 void os::Advapi32Dll::initialize() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5726 if (!initialized) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5727 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5728 if (handle != NULL) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5729 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5730 "AdjustTokenPrivileges"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5731 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5732 "OpenProcessToken"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5733 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
|
3834
279ef1916773
7065535: Mistyped function name that disabled UseLargePages on Windows
zgu
parents:
3833
diff
changeset
|
5734 "LookupPrivilegeValueA"); |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5735 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5736 initialized = TRUE; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5737 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5738 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5739 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5740 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5741 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5742 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5743 assert(initialized && _AdjustTokenPrivileges != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5744 "AdvapiAvailable() not yet called"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5745 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5746 BufferLength, PreviousState, ReturnLength); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5747 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5748 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5749 BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5750 PHANDLE TokenHandle) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5751 assert(initialized && _OpenProcessToken != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5752 "AdvapiAvailable() not yet called"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5753 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5754 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5755 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5756 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5757 assert(initialized && _LookupPrivilegeValue != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5758 "AdvapiAvailable() not yet called"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5759 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5760 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5761 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5762 BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5763 if (!initialized) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5764 initialize(); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5765 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5766 return _AdjustTokenPrivileges != NULL && |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5767 _OpenProcessToken != NULL && |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5768 _LookupPrivilegeValue != NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5769 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5770 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5771 #endif |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5772 |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5773 #ifndef PRODUCT |
|
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5774 |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5775 // test the code path in reserve_memory_special() that tries to allocate memory in a single |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5776 // contiguous memory block at a particular address. |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5777 // The test first tries to find a good approximate address to allocate at by using the same |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5778 // method to allocate some memory at any address. The test then tries to allocate memory in |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5779 // the vicinity (not directly after it to avoid possible by-chance use of that location) |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5780 // This is of course only some dodgy assumption, there is no guarantee that the vicinity of |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5781 // the previously allocated memory is available for allocation. The only actual failure |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5782 // that is reported is when the test tries to allocate at a particular location but gets a |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5783 // different valid one. A NULL return value at this point is not considered an error but may |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5784 // be legitimate. |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5785 // If -XX:+VerboseInternalVMTests is enabled, print some explanatory messages. |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5786 void TestReserveMemorySpecial_test() { |
|
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5787 if (!UseLargePages) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5788 if (VerboseInternalVMTests) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5789 gclog_or_tty->print("Skipping test because large pages are disabled"); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5790 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5791 return; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5792 } |
|
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5793 // save current value of globals |
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5794 bool old_use_large_pages_individual_allocation = UseLargePagesIndividualAllocation; |
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5795 bool old_use_numa_interleaving = UseNUMAInterleaving; |
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5796 |
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5797 // set globals to make sure we hit the correct code path |
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5798 UseLargePagesIndividualAllocation = UseNUMAInterleaving = false; |
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5799 |
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5800 // do an allocation at an address selected by the OS to get a good one. |
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5801 const size_t large_allocation_size = os::large_page_size() * 4; |
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5802 char* result = os::reserve_memory_special(large_allocation_size, os::large_page_size(), NULL, false); |
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5803 if (result == NULL) { |
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5804 if (VerboseInternalVMTests) { |
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5805 gclog_or_tty->print("Failed to allocate control block with size "SIZE_FORMAT". Skipping remainder of test.", |
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5806 large_allocation_size); |
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5807 } |
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5808 } else { |
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5809 os::release_memory_special(result, large_allocation_size); |
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5810 |
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5811 // allocate another page within the recently allocated memory area which seems to be a good location. At least |
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5812 // we managed to get it once. |
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5813 const size_t expected_allocation_size = os::large_page_size(); |
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5814 char* expected_location = result + os::large_page_size(); |
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5815 char* actual_location = os::reserve_memory_special(expected_allocation_size, os::large_page_size(), expected_location, false); |
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5816 if (actual_location == NULL) { |
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5817 if (VerboseInternalVMTests) { |
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5818 gclog_or_tty->print("Failed to allocate any memory at "PTR_FORMAT" size "SIZE_FORMAT". Skipping remainder of test.", |
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5819 expected_location, large_allocation_size); |
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5820 } |
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5821 } else { |
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5822 // release memory |
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5823 os::release_memory_special(actual_location, expected_allocation_size); |
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5824 // only now check, after releasing any memory to avoid any leaks. |
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5825 assert(actual_location == expected_location, |
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5826 err_msg("Failed to allocate memory at requested location "PTR_FORMAT" of size "SIZE_FORMAT", is "PTR_FORMAT" instead", |
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5827 expected_location, expected_allocation_size, actual_location)); |
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5828 } |
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5829 } |
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5830 |
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5831 // restore globals |
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5832 UseLargePagesIndividualAllocation = old_use_large_pages_individual_allocation; |
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5833 UseNUMAInterleaving = old_use_numa_interleaving; |
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5834 } |
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5835 #endif // PRODUCT |
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5836 |