Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.cpp @ 12253:179cd89fb279
Merge
| author | tschatzl |
|---|---|
| date | Thu, 19 Sep 2013 09:34:20 +0200 |
| parents | 40136aa2cdb1 8e94527f601e |
| children | cefad50507d8 2cfad8cc3bab 5656140324ed 0e6af9b390af |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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" | |
| 54 #include "runtime/osThread.hpp" | |
| 55 #include "runtime/perfMemory.hpp" | |
| 56 #include "runtime/sharedRuntime.hpp" | |
| 57 #include "runtime/statSampler.hpp" | |
| 58 #include "runtime/stubRoutines.hpp" | |
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59 #include "runtime/thread.inline.hpp" |
| 1972 | 60 #include "runtime/threadCritical.hpp" |
| 61 #include "runtime/timer.hpp" | |
| 62 #include "services/attachListener.hpp" | |
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63 #include "services/memTracker.hpp" |
| 1972 | 64 #include "services/runtimeService.hpp" |
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65 #include "utilities/decoder.hpp" |
| 1972 | 66 #include "utilities/defaultStream.hpp" |
| 67 #include "utilities/events.hpp" | |
| 68 #include "utilities/growableArray.hpp" | |
| 69 #include "utilities/vmError.hpp" | |
| 0 | 70 |
| 71 #ifdef _DEBUG | |
| 72 #include <crtdbg.h> | |
| 73 #endif | |
| 74 | |
| 75 | |
| 76 #include <windows.h> | |
| 77 #include <sys/types.h> | |
| 78 #include <sys/stat.h> | |
| 79 #include <sys/timeb.h> | |
| 80 #include <objidl.h> | |
| 81 #include <shlobj.h> | |
| 82 | |
| 83 #include <malloc.h> | |
| 84 #include <signal.h> | |
| 85 #include <direct.h> | |
| 86 #include <errno.h> | |
| 87 #include <fcntl.h> | |
| 88 #include <io.h> | |
| 89 #include <process.h> // For _beginthreadex(), _endthreadex() | |
| 90 #include <imagehlp.h> // For os::dll_address_to_function_name | |
| 91 /* for enumerating dll libraries */ | |
| 92 #include <vdmdbg.h> | |
| 93 | |
| 94 // for timer info max values which include all bits | |
| 95 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF) | |
| 96 | |
| 97 // For DLL loading/load error detection | |
| 98 // Values of PE COFF | |
| 99 #define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c | |
| 100 #define IMAGE_FILE_SIGNATURE_LENGTH 4 | |
| 101 | |
| 102 static HANDLE main_process; | |
| 103 static HANDLE main_thread; | |
| 104 static int main_thread_id; | |
| 105 | |
| 106 static FILETIME process_creation_time; | |
| 107 static FILETIME process_exit_time; | |
| 108 static FILETIME process_user_time; | |
| 109 static FILETIME process_kernel_time; | |
| 110 | |
| 111 #ifdef _M_IA64 | |
| 112 #define __CPU__ ia64 | |
| 113 #elif _M_AMD64 | |
| 114 #define __CPU__ amd64 | |
| 115 #else | |
| 116 #define __CPU__ i486 | |
| 117 #endif | |
| 118 | |
| 119 // save DLL module handle, used by GetModuleFileName | |
| 120 | |
| 121 HINSTANCE vm_lib_handle; | |
| 122 | |
| 123 BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) { | |
| 124 switch (reason) { | |
| 125 case DLL_PROCESS_ATTACH: | |
| 126 vm_lib_handle = hinst; | |
| 127 if(ForceTimeHighResolution) | |
| 128 timeBeginPeriod(1L); | |
| 129 break; | |
| 130 case DLL_PROCESS_DETACH: | |
| 131 if(ForceTimeHighResolution) | |
| 132 timeEndPeriod(1L); | |
| 133 break; | |
| 134 default: | |
| 135 break; | |
| 136 } | |
| 137 return true; | |
| 138 } | |
| 139 | |
| 140 static inline double fileTimeAsDouble(FILETIME* time) { | |
| 141 const double high = (double) ((unsigned int) ~0); | |
| 142 const double split = 10000000.0; | |
| 143 double result = (time->dwLowDateTime / split) + | |
| 144 time->dwHighDateTime * (high/split); | |
| 145 return result; | |
| 146 } | |
| 147 | |
| 148 // Implementation of os | |
| 149 | |
| 150 bool os::getenv(const char* name, char* buffer, int len) { | |
| 151 int result = GetEnvironmentVariable(name, buffer, len); | |
| 152 return result > 0 && result < len; | |
| 153 } | |
| 154 | |
| 155 | |
| 156 // No setuid programs under Windows. | |
| 157 bool os::have_special_privileges() { | |
| 158 return false; | |
| 159 } | |
| 160 | |
| 161 | |
| 162 // This method is a periodic task to check for misbehaving JNI applications | |
| 163 // under CheckJNI, we can add any periodic checks here. | |
| 164 // For Windows at the moment does nothing | |
| 165 void os::run_periodic_checks() { | |
| 166 return; | |
| 167 } | |
| 168 | |
| 169 #ifndef _WIN64 | |
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170 // previous UnhandledExceptionFilter, if there is one |
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171 static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL; |
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172 |
| 0 | 173 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo); |
| 174 #endif | |
| 175 void os::init_system_properties_values() { | |
| 176 /* sysclasspath, java_home, dll_dir */ | |
| 177 { | |
| 178 char *home_path; | |
| 179 char *dll_path; | |
| 180 char *pslash; | |
| 181 char *bin = "\\bin"; | |
| 182 char home_dir[MAX_PATH]; | |
| 183 | |
| 184 if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) { | |
| 185 os::jvm_path(home_dir, sizeof(home_dir)); | |
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186 // Found the full path to jvm.dll. |
| 0 | 187 // Now cut the path to <java_home>/jre if we can. |
| 188 *(strrchr(home_dir, '\\')) = '\0'; /* get rid of \jvm.dll */ | |
| 189 pslash = strrchr(home_dir, '\\'); | |
| 190 if (pslash != NULL) { | |
| 191 *pslash = '\0'; /* get rid of \{client|server} */ | |
| 192 pslash = strrchr(home_dir, '\\'); | |
| 193 if (pslash != NULL) | |
| 194 *pslash = '\0'; /* get rid of \bin */ | |
| 195 } | |
| 196 } | |
| 197 | |
| 6197 | 198 home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1, mtInternal); |
| 0 | 199 if (home_path == NULL) |
| 200 return; | |
| 201 strcpy(home_path, home_dir); | |
| 202 Arguments::set_java_home(home_path); | |
| 203 | |
| 6197 | 204 dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1, mtInternal); |
| 0 | 205 if (dll_path == NULL) |
| 206 return; | |
| 207 strcpy(dll_path, home_dir); | |
| 208 strcat(dll_path, bin); | |
| 209 Arguments::set_dll_dir(dll_path); | |
| 210 | |
| 211 if (!set_boot_path('\\', ';')) | |
| 212 return; | |
| 213 } | |
| 214 | |
| 215 /* library_path */ | |
| 216 #define EXT_DIR "\\lib\\ext" | |
| 217 #define BIN_DIR "\\bin" | |
| 218 #define PACKAGE_DIR "\\Sun\\Java" | |
| 219 { | |
| 220 /* Win32 library search order (See the documentation for LoadLibrary): | |
| 221 * | |
| 222 * 1. The directory from which application is loaded. | |
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223 * 2. The system wide Java Extensions directory (Java only) |
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224 * 3. System directory (GetSystemDirectory) |
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225 * 4. Windows directory (GetWindowsDirectory) |
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226 * 5. The PATH environment variable |
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227 * 6. The current directory |
| 0 | 228 */ |
| 229 | |
| 230 char *library_path; | |
| 231 char tmp[MAX_PATH]; | |
| 232 char *path_str = ::getenv("PATH"); | |
| 233 | |
| 234 library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) + | |
| 6197 | 235 sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10, mtInternal); |
| 0 | 236 |
| 237 library_path[0] = '\0'; | |
| 238 | |
| 239 GetModuleFileName(NULL, tmp, sizeof(tmp)); | |
| 240 *(strrchr(tmp, '\\')) = '\0'; | |
| 241 strcat(library_path, tmp); | |
| 242 | |
| 243 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 244 strcat(library_path, ";"); | |
| 245 strcat(library_path, tmp); | |
| 246 strcat(library_path, PACKAGE_DIR BIN_DIR); | |
| 247 | |
| 248 GetSystemDirectory(tmp, sizeof(tmp)); | |
| 249 strcat(library_path, ";"); | |
| 250 strcat(library_path, tmp); | |
| 251 | |
| 252 GetWindowsDirectory(tmp, sizeof(tmp)); | |
| 253 strcat(library_path, ";"); | |
| 254 strcat(library_path, tmp); | |
| 255 | |
| 256 if (path_str) { | |
| 257 strcat(library_path, ";"); | |
| 258 strcat(library_path, path_str); | |
| 259 } | |
| 260 | |
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261 strcat(library_path, ";."); |
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262 |
| 0 | 263 Arguments::set_library_path(library_path); |
| 6197 | 264 FREE_C_HEAP_ARRAY(char, library_path, mtInternal); |
| 0 | 265 } |
| 266 | |
| 267 /* Default extensions directory */ | |
| 268 { | |
| 269 char path[MAX_PATH]; | |
| 270 char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1]; | |
| 271 GetWindowsDirectory(path, MAX_PATH); | |
| 272 sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR, | |
| 273 path, PACKAGE_DIR, EXT_DIR); | |
| 274 Arguments::set_ext_dirs(buf); | |
| 275 } | |
| 276 #undef EXT_DIR | |
| 277 #undef BIN_DIR | |
| 278 #undef PACKAGE_DIR | |
| 279 | |
| 280 /* Default endorsed standards directory. */ | |
| 281 { | |
| 282 #define ENDORSED_DIR "\\lib\\endorsed" | |
| 283 size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR); | |
| 6197 | 284 char * buf = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 285 sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR); |
| 286 Arguments::set_endorsed_dirs(buf); | |
| 287 #undef ENDORSED_DIR | |
| 288 } | |
| 289 | |
| 290 #ifndef _WIN64 | |
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291 // set our UnhandledExceptionFilter and save any previous one |
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292 prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception); |
| 0 | 293 #endif |
| 294 | |
| 295 // Done | |
| 296 return; | |
| 297 } | |
| 298 | |
| 299 void os::breakpoint() { | |
| 300 DebugBreak(); | |
| 301 } | |
| 302 | |
| 303 // Invoked from the BREAKPOINT Macro | |
| 304 extern "C" void breakpoint() { | |
| 305 os::breakpoint(); | |
| 306 } | |
| 307 | |
| 6197 | 308 /* |
| 309 * RtlCaptureStackBackTrace Windows API may not exist prior to Windows XP. | |
| 310 * So far, this method is only used by Native Memory Tracking, which is | |
| 311 * only supported on Windows XP or later. | |
| 312 */ | |
| 313 address os::get_caller_pc(int n) { | |
| 314 #ifdef _NMT_NOINLINE_ | |
| 315 n ++; | |
| 316 #endif | |
| 317 address pc; | |
| 318 if (os::Kernel32Dll::RtlCaptureStackBackTrace(n + 1, 1, (PVOID*)&pc, NULL) == 1) { | |
| 319 return pc; | |
| 320 } | |
| 321 return NULL; | |
| 322 } | |
| 323 | |
| 324 | |
| 0 | 325 // os::current_stack_base() |
| 326 // | |
| 327 // Returns the base of the stack, which is the stack's | |
| 328 // starting address. This function must be called | |
| 329 // while running on the stack of the thread being queried. | |
| 330 | |
| 331 address os::current_stack_base() { | |
| 332 MEMORY_BASIC_INFORMATION minfo; | |
| 333 address stack_bottom; | |
| 334 size_t stack_size; | |
| 335 | |
| 336 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 337 stack_bottom = (address)minfo.AllocationBase; | |
| 338 stack_size = minfo.RegionSize; | |
| 339 | |
| 340 // Add up the sizes of all the regions with the same | |
| 341 // AllocationBase. | |
| 342 while( 1 ) | |
| 343 { | |
| 344 VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo)); | |
| 345 if ( stack_bottom == (address)minfo.AllocationBase ) | |
| 346 stack_size += minfo.RegionSize; | |
| 347 else | |
| 348 break; | |
| 349 } | |
| 350 | |
| 351 #ifdef _M_IA64 | |
| 352 // IA64 has memory and register stacks | |
| 7994 | 353 // |
| 354 // This is the stack layout you get on NT/IA64 if you specify 1MB stack limit | |
| 355 // at thread creation (1MB backing store growing upwards, 1MB memory stack | |
| 356 // growing downwards, 2MB summed up) | |
| 357 // | |
| 358 // ... | |
| 359 // ------- top of stack (high address) ----- | |
| 360 // | | |
| 361 // | 1MB | |
| 362 // | Backing Store (Register Stack) | |
| 363 // | | |
| 364 // | / \ | |
| 365 // | | | |
| 366 // | | | |
| 367 // | | | |
| 368 // ------------------------ stack base ----- | |
| 369 // | 1MB | |
| 370 // | Memory Stack | |
| 371 // | | |
| 372 // | | | |
| 373 // | | | |
| 374 // | | | |
| 375 // | \ / | |
| 376 // | | |
| 377 // ----- bottom of stack (low address) ----- | |
| 378 // ... | |
| 379 | |
| 0 | 380 stack_size = stack_size / 2; |
| 381 #endif | |
| 382 return stack_bottom + stack_size; | |
| 383 } | |
| 384 | |
| 385 size_t os::current_stack_size() { | |
| 386 size_t sz; | |
| 387 MEMORY_BASIC_INFORMATION minfo; | |
| 388 VirtualQuery(&minfo, &minfo, sizeof(minfo)); | |
| 389 sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase; | |
| 390 return sz; | |
| 391 } | |
| 392 | |
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393 struct tm* os::localtime_pd(const time_t* clock, struct tm* res) { |
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394 const struct tm* time_struct_ptr = localtime(clock); |
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395 if (time_struct_ptr != NULL) { |
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396 *res = *time_struct_ptr; |
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397 return res; |
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398 } |
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399 return NULL; |
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400 } |
| 0 | 401 |
| 402 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo); | |
| 403 | |
| 404 // Thread start routine for all new Java threads | |
| 405 static unsigned __stdcall java_start(Thread* thread) { | |
| 406 // Try to randomize the cache line index of hot stack frames. | |
| 407 // This helps when threads of the same stack traces evict each other's | |
| 408 // cache lines. The threads can be either from the same JVM instance, or | |
| 409 // from different JVM instances. The benefit is especially true for | |
| 410 // processors with hyperthreading technology. | |
| 411 static int counter = 0; | |
| 412 int pid = os::current_process_id(); | |
| 413 _alloca(((pid ^ counter++) & 7) * 128); | |
| 414 | |
| 415 OSThread* osthr = thread->osthread(); | |
| 416 assert(osthr->get_state() == RUNNABLE, "invalid os thread state"); | |
| 417 | |
| 418 if (UseNUMA) { | |
| 419 int lgrp_id = os::numa_get_group_id(); | |
| 420 if (lgrp_id != -1) { | |
| 421 thread->set_lgrp_id(lgrp_id); | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 | |
| 6916 | 426 // Install a win32 structured exception handler around every thread created |
| 427 // by VM, so VM can genrate error dump when an exception occurred in non- | |
| 428 // Java thread (e.g. VM thread). | |
| 429 __try { | |
| 430 thread->run(); | |
| 431 } __except(topLevelExceptionFilter( | |
| 432 (_EXCEPTION_POINTERS*)_exception_info())) { | |
| 433 // Nothing to do. | |
| 0 | 434 } |
| 435 | |
| 436 // One less thread is executing | |
| 437 // When the VMThread gets here, the main thread may have already exited | |
| 438 // which frees the CodeHeap containing the Atomic::add code | |
| 439 if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) { | |
| 440 Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 441 } | |
| 442 | |
| 443 return 0; | |
| 444 } | |
| 445 | |
| 446 static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) { | |
| 447 // Allocate the OSThread object | |
| 448 OSThread* osthread = new OSThread(NULL, NULL); | |
| 449 if (osthread == NULL) return NULL; | |
| 450 | |
| 451 // Initialize support for Java interrupts | |
| 452 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 453 if (interrupt_event == NULL) { | |
| 454 delete osthread; | |
| 455 return NULL; | |
| 456 } | |
| 457 osthread->set_interrupt_event(interrupt_event); | |
| 458 | |
| 459 // Store info on the Win32 thread into the OSThread | |
| 460 osthread->set_thread_handle(thread_handle); | |
| 461 osthread->set_thread_id(thread_id); | |
| 462 | |
| 463 if (UseNUMA) { | |
| 464 int lgrp_id = os::numa_get_group_id(); | |
| 465 if (lgrp_id != -1) { | |
| 466 thread->set_lgrp_id(lgrp_id); | |
| 467 } | |
| 468 } | |
| 469 | |
| 470 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 471 osthread->set_state(INITIALIZED); | |
| 472 | |
| 473 return osthread; | |
| 474 } | |
| 475 | |
| 476 | |
| 477 bool os::create_attached_thread(JavaThread* thread) { | |
| 478 #ifdef ASSERT | |
| 479 thread->verify_not_published(); | |
| 480 #endif | |
| 481 HANDLE thread_h; | |
| 482 if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(), | |
| 483 &thread_h, THREAD_ALL_ACCESS, false, 0)) { | |
| 484 fatal("DuplicateHandle failed\n"); | |
| 485 } | |
| 486 OSThread* osthread = create_os_thread(thread, thread_h, | |
| 487 (int)current_thread_id()); | |
| 488 if (osthread == NULL) { | |
| 489 return false; | |
| 490 } | |
| 491 | |
| 492 // Initial thread state is RUNNABLE | |
| 493 osthread->set_state(RUNNABLE); | |
| 494 | |
| 495 thread->set_osthread(osthread); | |
| 496 return true; | |
| 497 } | |
| 498 | |
| 499 bool os::create_main_thread(JavaThread* thread) { | |
| 500 #ifdef ASSERT | |
| 501 thread->verify_not_published(); | |
| 502 #endif | |
| 503 if (_starting_thread == NULL) { | |
| 504 _starting_thread = create_os_thread(thread, main_thread, main_thread_id); | |
| 505 if (_starting_thread == NULL) { | |
| 506 return false; | |
| 507 } | |
| 508 } | |
| 509 | |
| 510 // The primordial thread is runnable from the start) | |
| 511 _starting_thread->set_state(RUNNABLE); | |
| 512 | |
| 513 thread->set_osthread(_starting_thread); | |
| 514 return true; | |
| 515 } | |
| 516 | |
| 517 // Allocate and initialize a new OSThread | |
| 518 bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) { | |
| 519 unsigned thread_id; | |
| 520 | |
| 521 // Allocate the OSThread object | |
| 522 OSThread* osthread = new OSThread(NULL, NULL); | |
| 523 if (osthread == NULL) { | |
| 524 return false; | |
| 525 } | |
| 526 | |
| 527 // Initialize support for Java interrupts | |
| 528 HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL); | |
| 529 if (interrupt_event == NULL) { | |
| 530 delete osthread; | |
| 531 return NULL; | |
| 532 } | |
| 533 osthread->set_interrupt_event(interrupt_event); | |
| 534 osthread->set_interrupted(false); | |
| 535 | |
| 536 thread->set_osthread(osthread); | |
| 537 | |
| 538 if (stack_size == 0) { | |
| 539 switch (thr_type) { | |
| 540 case os::java_thread: | |
| 541 // Java threads use ThreadStackSize which default value can be changed with the flag -Xss | |
| 542 if (JavaThread::stack_size_at_create() > 0) | |
| 543 stack_size = JavaThread::stack_size_at_create(); | |
| 544 break; | |
| 545 case os::compiler_thread: | |
| 546 if (CompilerThreadStackSize > 0) { | |
| 547 stack_size = (size_t)(CompilerThreadStackSize * K); | |
| 548 break; | |
| 549 } // else fall through: | |
| 550 // use VMThreadStackSize if CompilerThreadStackSize is not defined | |
| 551 case os::vm_thread: | |
| 552 case os::pgc_thread: | |
| 553 case os::cgc_thread: | |
| 554 case os::watcher_thread: | |
| 555 if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K); | |
| 556 break; | |
| 557 } | |
| 558 } | |
| 559 | |
| 560 // Create the Win32 thread | |
| 561 // | |
| 562 // Contrary to what MSDN document says, "stack_size" in _beginthreadex() | |
| 563 // does not specify stack size. Instead, it specifies the size of | |
| 564 // initially committed space. The stack size is determined by | |
| 565 // PE header in the executable. If the committed "stack_size" is larger | |
| 566 // than default value in the PE header, the stack is rounded up to the | |
| 567 // nearest multiple of 1MB. For example if the launcher has default | |
| 568 // stack size of 320k, specifying any size less than 320k does not | |
| 569 // affect the actual stack size at all, it only affects the initial | |
| 570 // commitment. On the other hand, specifying 'stack_size' larger than | |
| 571 // default value may cause significant increase in memory usage, because | |
| 572 // not only the stack space will be rounded up to MB, but also the | |
| 573 // entire space is committed upfront. | |
| 574 // | |
| 575 // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION' | |
| 576 // for CreateThread() that can treat 'stack_size' as stack size. However we | |
| 577 // are not supposed to call CreateThread() directly according to MSDN | |
| 578 // document because JVM uses C runtime library. The good news is that the | |
| 579 // flag appears to work with _beginthredex() as well. | |
| 580 | |
| 581 #ifndef STACK_SIZE_PARAM_IS_A_RESERVATION | |
| 582 #define STACK_SIZE_PARAM_IS_A_RESERVATION (0x10000) | |
| 583 #endif | |
| 584 | |
| 585 HANDLE thread_handle = | |
| 586 (HANDLE)_beginthreadex(NULL, | |
| 587 (unsigned)stack_size, | |
| 588 (unsigned (__stdcall *)(void*)) java_start, | |
| 589 thread, | |
| 590 CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION, | |
| 591 &thread_id); | |
| 592 if (thread_handle == NULL) { | |
| 593 // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again | |
| 594 // without the flag. | |
| 595 thread_handle = | |
| 596 (HANDLE)_beginthreadex(NULL, | |
| 597 (unsigned)stack_size, | |
| 598 (unsigned (__stdcall *)(void*)) java_start, | |
| 599 thread, | |
| 600 CREATE_SUSPENDED, | |
| 601 &thread_id); | |
| 602 } | |
| 603 if (thread_handle == NULL) { | |
| 604 // Need to clean up stuff we've allocated so far | |
| 605 CloseHandle(osthread->interrupt_event()); | |
| 606 thread->set_osthread(NULL); | |
| 607 delete osthread; | |
| 608 return NULL; | |
| 609 } | |
| 610 | |
| 611 Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count); | |
| 612 | |
| 613 // Store info on the Win32 thread into the OSThread | |
| 614 osthread->set_thread_handle(thread_handle); | |
| 615 osthread->set_thread_id(thread_id); | |
| 616 | |
| 617 // Initial thread state is INITIALIZED, not SUSPENDED | |
| 618 osthread->set_state(INITIALIZED); | |
| 619 | |
| 620 // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain | |
| 621 return true; | |
| 622 } | |
| 623 | |
| 624 | |
| 625 // Free Win32 resources related to the OSThread | |
| 626 void os::free_thread(OSThread* osthread) { | |
| 627 assert(osthread != NULL, "osthread not set"); | |
| 628 CloseHandle(osthread->thread_handle()); | |
| 629 CloseHandle(osthread->interrupt_event()); | |
| 630 delete osthread; | |
| 631 } | |
| 632 | |
| 633 | |
| 634 static int has_performance_count = 0; | |
| 635 static jlong first_filetime; | |
| 636 static jlong initial_performance_count; | |
| 637 static jlong performance_frequency; | |
| 638 | |
| 639 | |
| 640 jlong as_long(LARGE_INTEGER x) { | |
| 641 jlong result = 0; // initialization to avoid warning | |
| 642 set_high(&result, x.HighPart); | |
| 643 set_low(&result, x.LowPart); | |
| 644 return result; | |
| 645 } | |
| 646 | |
| 647 | |
| 648 jlong os::elapsed_counter() { | |
| 649 LARGE_INTEGER count; | |
| 650 if (has_performance_count) { | |
| 651 QueryPerformanceCounter(&count); | |
| 652 return as_long(count) - initial_performance_count; | |
| 653 } else { | |
| 654 FILETIME wt; | |
| 655 GetSystemTimeAsFileTime(&wt); | |
| 656 return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime); | |
| 657 } | |
| 658 } | |
| 659 | |
| 660 | |
| 661 jlong os::elapsed_frequency() { | |
| 662 if (has_performance_count) { | |
| 663 return performance_frequency; | |
| 664 } else { | |
| 665 // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601. | |
| 666 return 10000000; | |
| 667 } | |
| 668 } | |
| 669 | |
| 670 | |
| 671 julong os::available_memory() { | |
| 672 return win32::available_memory(); | |
| 673 } | |
| 674 | |
| 675 julong os::win32::available_memory() { | |
|
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676 // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect |
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677 // value if total memory is larger than 4GB |
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678 MEMORYSTATUSEX ms; |
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679 ms.dwLength = sizeof(ms); |
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680 GlobalMemoryStatusEx(&ms); |
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681 |
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682 return (julong)ms.ullAvailPhys; |
| 0 | 683 } |
| 684 | |
| 685 julong os::physical_memory() { | |
| 686 return win32::physical_memory(); | |
| 687 } | |
| 688 | |
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689 bool os::has_allocatable_memory_limit(julong* limit) { |
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690 MEMORYSTATUSEX ms; |
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691 ms.dwLength = sizeof(ms); |
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692 GlobalMemoryStatusEx(&ms); |
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693 #ifdef _LP64 |
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694 *limit = (julong)ms.ullAvailVirtual; |
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695 return true; |
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696 #else |
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697 // Limit to 1400m because of the 2gb address space wall |
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698 *limit = MIN2((julong)1400*M, (julong)ms.ullAvailVirtual); |
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699 return true; |
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700 #endif |
| 0 | 701 } |
| 702 | |
| 703 // VC6 lacks DWORD_PTR | |
| 704 #if _MSC_VER < 1300 | |
| 705 typedef UINT_PTR DWORD_PTR; | |
| 706 #endif | |
| 707 | |
| 708 int os::active_processor_count() { | |
| 709 DWORD_PTR lpProcessAffinityMask = 0; | |
| 710 DWORD_PTR lpSystemAffinityMask = 0; | |
| 711 int proc_count = processor_count(); | |
| 712 if (proc_count <= sizeof(UINT_PTR) * BitsPerByte && | |
| 713 GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) { | |
| 714 // Nof active processors is number of bits in process affinity mask | |
| 715 int bitcount = 0; | |
| 716 while (lpProcessAffinityMask != 0) { | |
| 717 lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1); | |
| 718 bitcount++; | |
| 719 } | |
| 720 return bitcount; | |
| 721 } else { | |
| 722 return proc_count; | |
| 723 } | |
| 724 } | |
| 725 | |
| 4006 | 726 void os::set_native_thread_name(const char *name) { |
| 727 // Not yet implemented. | |
| 728 return; | |
| 729 } | |
| 730 | |
| 0 | 731 bool os::distribute_processes(uint length, uint* distribution) { |
| 732 // Not yet implemented. | |
| 733 return false; | |
| 734 } | |
| 735 | |
| 736 bool os::bind_to_processor(uint processor_id) { | |
| 737 // Not yet implemented. | |
| 738 return false; | |
| 739 } | |
| 740 | |
| 741 static void initialize_performance_counter() { | |
| 742 LARGE_INTEGER count; | |
| 743 if (QueryPerformanceFrequency(&count)) { | |
| 744 has_performance_count = 1; | |
| 745 performance_frequency = as_long(count); | |
| 746 QueryPerformanceCounter(&count); | |
| 747 initial_performance_count = as_long(count); | |
| 748 } else { | |
| 749 has_performance_count = 0; | |
| 750 FILETIME wt; | |
| 751 GetSystemTimeAsFileTime(&wt); | |
| 752 first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 753 } | |
| 754 } | |
| 755 | |
| 756 | |
| 757 double os::elapsedTime() { | |
| 758 return (double) elapsed_counter() / (double) elapsed_frequency(); | |
| 759 } | |
| 760 | |
| 761 | |
| 762 // Windows format: | |
| 763 // The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601. | |
| 764 // Java format: | |
| 765 // Java standards require the number of milliseconds since 1/1/1970 | |
| 766 | |
| 767 // Constant offset - calculated using offset() | |
| 768 static jlong _offset = 116444736000000000; | |
| 769 // Fake time counter for reproducible results when debugging | |
| 770 static jlong fake_time = 0; | |
| 771 | |
| 772 #ifdef ASSERT | |
| 773 // Just to be safe, recalculate the offset in debug mode | |
| 774 static jlong _calculated_offset = 0; | |
| 775 static int _has_calculated_offset = 0; | |
| 776 | |
| 777 jlong offset() { | |
| 778 if (_has_calculated_offset) return _calculated_offset; | |
| 779 SYSTEMTIME java_origin; | |
| 780 java_origin.wYear = 1970; | |
| 781 java_origin.wMonth = 1; | |
| 782 java_origin.wDayOfWeek = 0; // ignored | |
| 783 java_origin.wDay = 1; | |
| 784 java_origin.wHour = 0; | |
| 785 java_origin.wMinute = 0; | |
| 786 java_origin.wSecond = 0; | |
| 787 java_origin.wMilliseconds = 0; | |
| 788 FILETIME jot; | |
| 789 if (!SystemTimeToFileTime(&java_origin, &jot)) { | |
|
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790 fatal(err_msg("Error = %d\nWindows error", GetLastError())); |
| 0 | 791 } |
| 792 _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime); | |
| 793 _has_calculated_offset = 1; | |
| 794 assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal"); | |
| 795 return _calculated_offset; | |
| 796 } | |
| 797 #else | |
| 798 jlong offset() { | |
| 799 return _offset; | |
| 800 } | |
| 801 #endif | |
| 802 | |
| 803 jlong windows_to_java_time(FILETIME wt) { | |
| 804 jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime); | |
| 805 return (a - offset()) / 10000; | |
| 806 } | |
| 807 | |
| 808 FILETIME java_to_windows_time(jlong l) { | |
| 809 jlong a = (l * 10000) + offset(); | |
| 810 FILETIME result; | |
| 811 result.dwHighDateTime = high(a); | |
| 812 result.dwLowDateTime = low(a); | |
| 813 return result; | |
| 814 } | |
| 815 | |
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816 bool os::supports_vtime() { return true; } |
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817 bool os::enable_vtime() { return false; } |
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818 bool os::vtime_enabled() { return false; } |
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819 |
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820 double os::elapsedVTime() { |
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821 FILETIME created; |
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822 FILETIME exited; |
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823 FILETIME kernel; |
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824 FILETIME user; |
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825 if (GetThreadTimes(GetCurrentThread(), &created, &exited, &kernel, &user) != 0) { |
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826 // the resolution of windows_to_java_time() should be sufficient (ms) |
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827 return (double) (windows_to_java_time(kernel) + windows_to_java_time(user)) / MILLIUNITS; |
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828 } else { |
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829 return elapsedTime(); |
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830 } |
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831 } |
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832 |
| 0 | 833 jlong os::javaTimeMillis() { |
| 834 if (UseFakeTimers) { | |
| 835 return fake_time++; | |
| 836 } else { | |
| 61 | 837 FILETIME wt; |
| 838 GetSystemTimeAsFileTime(&wt); | |
| 839 return windows_to_java_time(wt); | |
| 0 | 840 } |
| 841 } | |
| 842 | |
| 843 jlong os::javaTimeNanos() { | |
| 844 if (!has_performance_count) { | |
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845 return javaTimeMillis() * NANOSECS_PER_MILLISEC; // the best we can do. |
| 0 | 846 } else { |
| 847 LARGE_INTEGER current_count; | |
| 848 QueryPerformanceCounter(¤t_count); | |
| 849 double current = as_long(current_count); | |
| 850 double freq = performance_frequency; | |
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851 jlong time = (jlong)((current/freq) * NANOSECS_PER_SEC); |
| 0 | 852 return time; |
| 853 } | |
| 854 } | |
| 855 | |
| 856 void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) { | |
| 857 if (!has_performance_count) { | |
| 858 // javaTimeMillis() doesn't have much percision, | |
| 859 // but it is not going to wrap -- so all 64 bits | |
| 860 info_ptr->max_value = ALL_64_BITS; | |
| 861 | |
| 862 // this is a wall clock timer, so may skip | |
| 863 info_ptr->may_skip_backward = true; | |
| 864 info_ptr->may_skip_forward = true; | |
| 865 } else { | |
| 866 jlong freq = performance_frequency; | |
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867 if (freq < NANOSECS_PER_SEC) { |
| 0 | 868 // the performance counter is 64 bits and we will |
| 869 // be multiplying it -- so no wrap in 64 bits | |
| 870 info_ptr->max_value = ALL_64_BITS; | |
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871 } else if (freq > NANOSECS_PER_SEC) { |
| 0 | 872 // use the max value the counter can reach to |
| 873 // determine the max value which could be returned | |
| 874 julong max_counter = (julong)ALL_64_BITS; | |
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875 info_ptr->max_value = (jlong)(max_counter / (freq / NANOSECS_PER_SEC)); |
| 0 | 876 } else { |
| 877 // the performance counter is 64 bits and we will | |
| 878 // be using it directly -- so no wrap in 64 bits | |
| 879 info_ptr->max_value = ALL_64_BITS; | |
| 880 } | |
| 881 | |
| 882 // using a counter, so no skipping | |
| 883 info_ptr->may_skip_backward = false; | |
| 884 info_ptr->may_skip_forward = false; | |
| 885 } | |
| 886 info_ptr->kind = JVMTI_TIMER_ELAPSED; // elapsed not CPU time | |
| 887 } | |
| 888 | |
| 889 char* os::local_time_string(char *buf, size_t buflen) { | |
| 890 SYSTEMTIME st; | |
| 891 GetLocalTime(&st); | |
| 892 jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d", | |
| 893 st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond); | |
| 894 return buf; | |
| 895 } | |
| 896 | |
| 897 bool os::getTimesSecs(double* process_real_time, | |
| 898 double* process_user_time, | |
| 899 double* process_system_time) { | |
| 900 HANDLE h_process = GetCurrentProcess(); | |
| 901 FILETIME create_time, exit_time, kernel_time, user_time; | |
| 902 BOOL result = GetProcessTimes(h_process, | |
| 903 &create_time, | |
| 904 &exit_time, | |
| 905 &kernel_time, | |
| 906 &user_time); | |
| 907 if (result != 0) { | |
| 908 FILETIME wt; | |
| 909 GetSystemTimeAsFileTime(&wt); | |
| 910 jlong rtc_millis = windows_to_java_time(wt); | |
| 911 jlong user_millis = windows_to_java_time(user_time); | |
| 912 jlong system_millis = windows_to_java_time(kernel_time); | |
| 913 *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS); | |
| 914 *process_user_time = ((double) user_millis) / ((double) MILLIUNITS); | |
| 915 *process_system_time = ((double) system_millis) / ((double) MILLIUNITS); | |
| 916 return true; | |
| 917 } else { | |
| 918 return false; | |
| 919 } | |
| 920 } | |
| 921 | |
| 922 void os::shutdown() { | |
| 923 | |
| 924 // allow PerfMemory to attempt cleanup of any persistent resources | |
| 925 perfMemory_exit(); | |
| 926 | |
| 927 // flush buffered output, finish log files | |
| 928 ostream_abort(); | |
| 929 | |
| 930 // Check for abort hook | |
| 931 abort_hook_t abort_hook = Arguments::abort_hook(); | |
| 932 if (abort_hook != NULL) { | |
| 933 abort_hook(); | |
| 934 } | |
| 935 } | |
| 936 | |
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937 |
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938 static BOOL (WINAPI *_MiniDumpWriteDump) ( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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939 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION); |
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940 |
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941 void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { |
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942 HINSTANCE dbghelp; |
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943 EXCEPTION_POINTERS ep; |
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944 MINIDUMP_EXCEPTION_INFORMATION mei; |
|
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945 MINIDUMP_EXCEPTION_INFORMATION* pmei; |
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946 |
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947 HANDLE hProcess = GetCurrentProcess(); |
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948 DWORD processId = GetCurrentProcessId(); |
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949 HANDLE dumpFile; |
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950 MINIDUMP_TYPE dumpType; |
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951 static const char* cwd; |
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952 |
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953 // Default is to always create dump for debug builds, on product builds only dump on server versions of Windows. |
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954 #ifndef ASSERT |
|
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955 // If running on a client version of Windows and user has not explicitly enabled dumping |
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956 if (!os::win32::is_windows_server() && !CreateMinidumpOnCrash) { |
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957 VMError::report_coredump_status("Minidumps are not enabled by default on client versions of Windows", false); |
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958 return; |
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959 // If running on a server version of Windows and user has explictly disabled dumping |
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960 } else if (os::win32::is_windows_server() && !FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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961 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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962 return; |
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963 } |
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964 #else |
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965 if (!FLAG_IS_DEFAULT(CreateMinidumpOnCrash) && !CreateMinidumpOnCrash) { |
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966 VMError::report_coredump_status("Minidump has been disabled from the command line", false); |
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967 return; |
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968 } |
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969 #endif |
|
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970 |
|
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971 dbghelp = os::win32::load_Windows_dll("DBGHELP.DLL", NULL, 0); |
|
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972 |
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973 if (dbghelp == NULL) { |
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974 VMError::report_coredump_status("Failed to load dbghelp.dll", false); |
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975 return; |
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976 } |
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977 |
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978 _MiniDumpWriteDump = CAST_TO_FN_PTR( |
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979 BOOL(WINAPI *)( HANDLE, DWORD, HANDLE, MINIDUMP_TYPE, PMINIDUMP_EXCEPTION_INFORMATION, |
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980 PMINIDUMP_USER_STREAM_INFORMATION, PMINIDUMP_CALLBACK_INFORMATION), |
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981 GetProcAddress(dbghelp, "MiniDumpWriteDump")); |
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982 |
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983 if (_MiniDumpWriteDump == NULL) { |
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984 VMError::report_coredump_status("Failed to find MiniDumpWriteDump() in module dbghelp.dll", false); |
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985 return; |
|
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986 } |
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|
987 |
|
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988 dumpType = (MINIDUMP_TYPE)(MiniDumpWithFullMemory | MiniDumpWithHandleData); |
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989 |
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990 // Older versions of dbghelp.h doesn't contain all the dumptypes we want, dbghelp.h with |
|
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991 // API_VERSION_NUMBER 11 or higher contains the ones we want though |
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992 #if API_VERSION_NUMBER >= 11 |
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993 dumpType = (MINIDUMP_TYPE)(dumpType | MiniDumpWithFullMemoryInfo | MiniDumpWithThreadInfo | |
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994 MiniDumpWithUnloadedModules); |
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995 #endif |
|
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996 |
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997 cwd = get_current_directory(NULL, 0); |
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998 jio_snprintf(buffer, bufferSize, "%s\\hs_err_pid%u.mdmp",cwd, current_process_id()); |
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999 dumpFile = CreateFile(buffer, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); |
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1000 |
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1001 if (dumpFile == INVALID_HANDLE_VALUE) { |
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1002 VMError::report_coredump_status("Failed to create file for dumping", false); |
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1003 return; |
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1004 } |
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1005 if (exceptionRecord != NULL && contextRecord != NULL) { |
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1006 ep.ContextRecord = (PCONTEXT) contextRecord; |
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1007 ep.ExceptionRecord = (PEXCEPTION_RECORD) exceptionRecord; |
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1008 |
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1009 mei.ThreadId = GetCurrentThreadId(); |
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1010 mei.ExceptionPointers = &ep; |
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1011 pmei = &mei; |
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1012 } else { |
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1013 pmei = NULL; |
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1014 } |
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1015 |
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1016 |
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1017 // Older versions of dbghelp.dll (the one shipped with Win2003 for example) may not support all |
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1018 // the dump types we really want. If first call fails, lets fall back to just use MiniDumpWithFullMemory then. |
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1019 if (_MiniDumpWriteDump(hProcess, processId, dumpFile, dumpType, pmei, NULL, NULL) == false && |
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1020 _MiniDumpWriteDump(hProcess, processId, dumpFile, (MINIDUMP_TYPE)MiniDumpWithFullMemory, pmei, NULL, NULL) == false) { |
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1021 DWORD error = GetLastError(); |
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1022 LPTSTR msgbuf = NULL; |
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1023 |
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1024 if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | |
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1025 FORMAT_MESSAGE_FROM_SYSTEM | |
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1026 FORMAT_MESSAGE_IGNORE_INSERTS, |
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1027 NULL, error, 0, (LPTSTR)&msgbuf, 0, NULL) != 0) { |
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1028 |
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1029 jio_snprintf(buffer, bufferSize, "Call to MiniDumpWriteDump() failed (Error 0x%x: %s)", error, msgbuf); |
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1030 LocalFree(msgbuf); |
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1031 } else { |
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1032 // Call to FormatMessage failed, just include the result from GetLastError |
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1033 jio_snprintf(buffer, bufferSize, "Call to MiniDumpWriteDump() failed (Error 0x%x)", error); |
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1034 } |
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1035 VMError::report_coredump_status(buffer, false); |
|
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1036 } else { |
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1037 VMError::report_coredump_status(buffer, true); |
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1038 } |
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1039 |
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1040 CloseHandle(dumpFile); |
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1041 } |
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1042 |
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1043 |
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1044 |
| 0 | 1045 void os::abort(bool dump_core) |
| 1046 { | |
| 1047 os::shutdown(); | |
| 1048 // no core dump on Windows | |
| 1049 ::exit(1); | |
| 1050 } | |
| 1051 | |
| 1052 // Die immediately, no exit hook, no abort hook, no cleanup. | |
| 1053 void os::die() { | |
| 1054 _exit(-1); | |
| 1055 } | |
| 1056 | |
| 1057 // Directory routines copied from src/win32/native/java/io/dirent_md.c | |
| 1058 // * dirent_md.c 1.15 00/02/02 | |
| 1059 // | |
| 1060 // The declarations for DIR and struct dirent are in jvm_win32.h. | |
| 1061 | |
| 1062 /* Caller must have already run dirname through JVM_NativePath, which removes | |
| 1063 duplicate slashes and converts all instances of '/' into '\\'. */ | |
| 1064 | |
| 1065 DIR * | |
| 1066 os::opendir(const char *dirname) | |
| 1067 { | |
| 1068 assert(dirname != NULL, "just checking"); // hotspot change | |
| 6197 | 1069 DIR *dirp = (DIR *)malloc(sizeof(DIR), mtInternal); |
| 0 | 1070 DWORD fattr; // hotspot change |
| 1071 char alt_dirname[4] = { 0, 0, 0, 0 }; | |
| 1072 | |
| 1073 if (dirp == 0) { | |
| 1074 errno = ENOMEM; | |
| 1075 return 0; | |
| 1076 } | |
| 1077 | |
| 1078 /* | |
| 1079 * Win32 accepts "\" in its POSIX stat(), but refuses to treat it | |
| 1080 * as a directory in FindFirstFile(). We detect this case here and | |
| 1081 * prepend the current drive name. | |
| 1082 */ | |
| 1083 if (dirname[1] == '\0' && dirname[0] == '\\') { | |
| 1084 alt_dirname[0] = _getdrive() + 'A' - 1; | |
| 1085 alt_dirname[1] = ':'; | |
| 1086 alt_dirname[2] = '\\'; | |
| 1087 alt_dirname[3] = '\0'; | |
| 1088 dirname = alt_dirname; | |
| 1089 } | |
| 1090 | |
| 6197 | 1091 dirp->path = (char *)malloc(strlen(dirname) + 5, mtInternal); |
| 0 | 1092 if (dirp->path == 0) { |
| 6197 | 1093 free(dirp, mtInternal); |
| 0 | 1094 errno = ENOMEM; |
| 1095 return 0; | |
| 1096 } | |
| 1097 strcpy(dirp->path, dirname); | |
| 1098 | |
| 1099 fattr = GetFileAttributes(dirp->path); | |
| 1100 if (fattr == 0xffffffff) { | |
| 6197 | 1101 free(dirp->path, mtInternal); |
| 1102 free(dirp, mtInternal); | |
| 0 | 1103 errno = ENOENT; |
| 1104 return 0; | |
| 1105 } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) { | |
| 6197 | 1106 free(dirp->path, mtInternal); |
| 1107 free(dirp, mtInternal); | |
| 0 | 1108 errno = ENOTDIR; |
| 1109 return 0; | |
| 1110 } | |
| 1111 | |
| 1112 /* Append "*.*", or possibly "\\*.*", to path */ | |
| 1113 if (dirp->path[1] == ':' | |
| 1114 && (dirp->path[2] == '\0' | |
| 1115 || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) { | |
| 1116 /* No '\\' needed for cases like "Z:" or "Z:\" */ | |
| 1117 strcat(dirp->path, "*.*"); | |
| 1118 } else { | |
| 1119 strcat(dirp->path, "\\*.*"); | |
| 1120 } | |
| 1121 | |
| 1122 dirp->handle = FindFirstFile(dirp->path, &dirp->find_data); | |
| 1123 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1124 if (GetLastError() != ERROR_FILE_NOT_FOUND) { | |
| 6197 | 1125 free(dirp->path, mtInternal); |
| 1126 free(dirp, mtInternal); | |
| 0 | 1127 errno = EACCES; |
| 1128 return 0; | |
| 1129 } | |
| 1130 } | |
| 1131 return dirp; | |
| 1132 } | |
| 1133 | |
| 1134 /* parameter dbuf unused on Windows */ | |
| 1135 | |
| 1136 struct dirent * | |
| 1137 os::readdir(DIR *dirp, dirent *dbuf) | |
| 1138 { | |
| 1139 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1140 if (dirp->handle == INVALID_HANDLE_VALUE) { | |
| 1141 return 0; | |
| 1142 } | |
| 1143 | |
| 1144 strcpy(dirp->dirent.d_name, dirp->find_data.cFileName); | |
| 1145 | |
| 1146 if (!FindNextFile(dirp->handle, &dirp->find_data)) { | |
| 1147 if (GetLastError() == ERROR_INVALID_HANDLE) { | |
| 1148 errno = EBADF; | |
| 1149 return 0; | |
| 1150 } | |
| 1151 FindClose(dirp->handle); | |
| 1152 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1153 } | |
| 1154 | |
| 1155 return &dirp->dirent; | |
| 1156 } | |
| 1157 | |
| 1158 int | |
| 1159 os::closedir(DIR *dirp) | |
| 1160 { | |
| 1161 assert(dirp != NULL, "just checking"); // hotspot change | |
| 1162 if (dirp->handle != INVALID_HANDLE_VALUE) { | |
| 1163 if (!FindClose(dirp->handle)) { | |
| 1164 errno = EBADF; | |
| 1165 return -1; | |
| 1166 } | |
| 1167 dirp->handle = INVALID_HANDLE_VALUE; | |
| 1168 } | |
| 6197 | 1169 free(dirp->path, mtInternal); |
| 1170 free(dirp, mtInternal); | |
| 0 | 1171 return 0; |
| 1172 } | |
| 1173 | |
|
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1174 // This must be hard coded because it's the system's temporary |
|
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1175 // directory not the java application's temp directory, ala java.io.tmpdir. |
|
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1176 const char* os::get_temp_directory() { |
|
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1177 static char path_buf[MAX_PATH]; |
|
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1178 if (GetTempPath(MAX_PATH, path_buf)>0) |
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1179 return path_buf; |
|
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1180 else{ |
|
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1181 path_buf[0]='\0'; |
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1182 return path_buf; |
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|
1183 } |
| 0 | 1184 } |
| 1185 | |
| 691 | 1186 static bool file_exists(const char* filename) { |
| 1187 if (filename == NULL || strlen(filename) == 0) { | |
| 1188 return false; | |
| 1189 } | |
| 1190 return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES; | |
| 1191 } | |
| 1192 | |
|
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|
1193 bool os::dll_build_name(char *buffer, size_t buflen, |
| 691 | 1194 const char* pname, const char* fname) { |
|
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|
1195 bool retval = false; |
| 691 | 1196 const size_t pnamelen = pname ? strlen(pname) : 0; |
| 1197 const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0; | |
| 1198 | |
|
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1199 // Return error on buffer overflow. |
| 691 | 1200 if (pnamelen + strlen(fname) + 10 > buflen) { |
|
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|
1201 return retval; |
| 691 | 1202 } |
| 1203 | |
| 1204 if (pnamelen == 0) { | |
| 1205 jio_snprintf(buffer, buflen, "%s.dll", fname); | |
|
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|
1206 retval = true; |
| 691 | 1207 } else if (c == ':' || c == '\\') { |
| 1208 jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname); | |
|
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|
1209 retval = true; |
| 691 | 1210 } else if (strchr(pname, *os::path_separator()) != NULL) { |
| 1211 int n; | |
| 1212 char** pelements = split_path(pname, &n); | |
|
9059
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|
1213 if (pelements == NULL) { |
| 9062 | 1214 return false; |
|
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|
1215 } |
| 691 | 1216 for (int i = 0 ; i < n ; i++) { |
| 1217 char* path = pelements[i]; | |
| 1218 // Really shouldn't be NULL, but check can't hurt | |
| 1219 size_t plen = (path == NULL) ? 0 : strlen(path); | |
| 1220 if (plen == 0) { | |
| 1221 continue; // skip the empty path values | |
| 1222 } | |
| 1223 const char lastchar = path[plen - 1]; | |
| 1224 if (lastchar == ':' || lastchar == '\\') { | |
| 1225 jio_snprintf(buffer, buflen, "%s%s.dll", path, fname); | |
| 1226 } else { | |
| 1227 jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname); | |
| 1228 } | |
| 1229 if (file_exists(buffer)) { | |
|
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|
1230 retval = true; |
| 691 | 1231 break; |
| 1232 } | |
| 242 | 1233 } |
| 691 | 1234 // release the storage |
| 1235 for (int i = 0 ; i < n ; i++) { | |
| 1236 if (pelements[i] != NULL) { | |
| 6197 | 1237 FREE_C_HEAP_ARRAY(char, pelements[i], mtInternal); |
| 691 | 1238 } |
| 242 | 1239 } |
| 691 | 1240 if (pelements != NULL) { |
| 6197 | 1241 FREE_C_HEAP_ARRAY(char*, pelements, mtInternal); |
| 691 | 1242 } |
| 1243 } else { | |
| 1244 jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname); | |
|
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1245 retval = true; |
|
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|
1246 } |
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|
1247 return retval; |
| 242 | 1248 } |
| 1249 | |
| 0 | 1250 // Needs to be in os specific directory because windows requires another |
| 1251 // header file <direct.h> | |
|
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|
1252 const char* os::get_current_directory(char *buf, size_t buflen) { |
|
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1253 int n = static_cast<int>(buflen); |
|
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|
1254 if (buflen > INT_MAX) n = INT_MAX; |
|
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|
1255 return _getcwd(buf, n); |
| 0 | 1256 } |
| 1257 | |
| 1258 //----------------------------------------------------------- | |
| 1259 // Helper functions for fatal error handler | |
| 1260 #ifdef _WIN64 | |
| 1261 // Helper routine which returns true if address in | |
| 1262 // within the NTDLL address space. | |
| 1263 // | |
| 1264 static bool _addr_in_ntdll( address addr ) | |
| 1265 { | |
| 1266 HMODULE hmod; | |
| 1267 MODULEINFO minfo; | |
| 1268 | |
| 1269 hmod = GetModuleHandle("NTDLL.DLL"); | |
| 1270 if ( hmod == NULL ) return false; | |
|
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|
1271 if ( !os::PSApiDll::GetModuleInformation( GetCurrentProcess(), hmod, |
| 0 | 1272 &minfo, sizeof(MODULEINFO)) ) |
| 1273 return false; | |
| 1274 | |
| 1275 if ( (addr >= minfo.lpBaseOfDll) && | |
| 1276 (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage))) | |
| 1277 return true; | |
| 1278 else | |
| 1279 return false; | |
| 1280 } | |
| 1281 #endif | |
| 1282 | |
| 1283 | |
| 1284 // Enumerate all modules for a given process ID | |
| 1285 // | |
| 1286 // Notice that Windows 95/98/Me and Windows NT/2000/XP have | |
| 1287 // different API for doing this. We use PSAPI.DLL on NT based | |
| 1288 // Windows and ToolHelp on 95/98/Me. | |
| 1289 | |
| 1290 // Callback function that is called by enumerate_modules() on | |
| 1291 // every DLL module. | |
| 1292 // Input parameters: | |
| 1293 // int pid, | |
| 1294 // char* module_file_name, | |
| 1295 // address module_base_addr, | |
| 1296 // unsigned module_size, | |
| 1297 // void* param | |
| 1298 typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *); | |
| 1299 | |
| 1300 // enumerate_modules for Windows NT, using PSAPI | |
| 1301 static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param) | |
| 1302 { | |
| 1303 HANDLE hProcess ; | |
| 1304 | |
| 1305 # define MAX_NUM_MODULES 128 | |
| 1306 HMODULE modules[MAX_NUM_MODULES]; | |
| 1307 static char filename[ MAX_PATH ]; | |
| 1308 int result = 0; | |
| 1309 | |
|
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1310 if (!os::PSApiDll::PSApiAvailable()) { |
|
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|
1311 return 0; |
|
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|
1312 } |
| 0 | 1313 |
| 1314 hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, | |
| 1315 FALSE, pid ) ; | |
| 1316 if (hProcess == NULL) return 0; | |
| 1317 | |
| 1318 DWORD size_needed; | |
|
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|
1319 if (!os::PSApiDll::EnumProcessModules(hProcess, modules, |
| 0 | 1320 sizeof(modules), &size_needed)) { |
| 1321 CloseHandle( hProcess ); | |
| 1322 return 0; | |
| 1323 } | |
| 1324 | |
| 1325 // number of modules that are currently loaded | |
| 1326 int num_modules = size_needed / sizeof(HMODULE); | |
| 1327 | |
| 1328 for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) { | |
| 1329 // Get Full pathname: | |
|
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|
1330 if(!os::PSApiDll::GetModuleFileNameEx(hProcess, modules[i], |
| 0 | 1331 filename, sizeof(filename))) { |
| 1332 filename[0] = '\0'; | |
| 1333 } | |
| 1334 | |
| 1335 MODULEINFO modinfo; | |
|
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|
1336 if (!os::PSApiDll::GetModuleInformation(hProcess, modules[i], |
| 0 | 1337 &modinfo, sizeof(modinfo))) { |
| 1338 modinfo.lpBaseOfDll = NULL; | |
| 1339 modinfo.SizeOfImage = 0; | |
| 1340 } | |
| 1341 | |
| 1342 // Invoke callback function | |
| 1343 result = func(pid, filename, (address)modinfo.lpBaseOfDll, | |
| 1344 modinfo.SizeOfImage, param); | |
| 1345 if (result) break; | |
| 1346 } | |
| 1347 | |
| 1348 CloseHandle( hProcess ) ; | |
| 1349 return result; | |
| 1350 } | |
| 1351 | |
| 1352 | |
| 1353 // enumerate_modules for Windows 95/98/ME, using TOOLHELP | |
| 1354 static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param) | |
| 1355 { | |
| 1356 HANDLE hSnapShot ; | |
| 1357 static MODULEENTRY32 modentry ; | |
| 1358 int result = 0; | |
| 1359 | |
|
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1360 if (!os::Kernel32Dll::HelpToolsAvailable()) { |
|
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1361 return 0; |
|
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|
1362 } |
| 0 | 1363 |
| 1364 // Get a handle to a Toolhelp snapshot of the system | |
|
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|
1365 hSnapShot = os::Kernel32Dll::CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ; |
| 0 | 1366 if( hSnapShot == INVALID_HANDLE_VALUE ) { |
| 1367 return FALSE ; | |
| 1368 } | |
| 1369 | |
| 1370 // iterate through all modules | |
| 1371 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
|
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1372 bool not_done = os::Kernel32Dll::Module32First( hSnapShot, &modentry ) != 0; |
| 0 | 1373 |
| 1374 while( not_done ) { | |
| 1375 // invoke the callback | |
| 1376 result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr, | |
| 1377 modentry.modBaseSize, param); | |
| 1378 if (result) break; | |
| 1379 | |
| 1380 modentry.dwSize = sizeof(MODULEENTRY32) ; | |
|
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|
1381 not_done = os::Kernel32Dll::Module32Next( hSnapShot, &modentry ) != 0; |
| 0 | 1382 } |
| 1383 | |
| 1384 CloseHandle(hSnapShot); | |
| 1385 return result; | |
| 1386 } | |
| 1387 | |
| 1388 int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param ) | |
| 1389 { | |
| 1390 // Get current process ID if caller doesn't provide it. | |
| 1391 if (!pid) pid = os::current_process_id(); | |
| 1392 | |
| 1393 if (os::win32::is_nt()) return _enumerate_modules_winnt (pid, func, param); | |
| 1394 else return _enumerate_modules_windows(pid, func, param); | |
| 1395 } | |
| 1396 | |
| 1397 struct _modinfo { | |
| 1398 address addr; | |
| 1399 char* full_path; // point to a char buffer | |
| 1400 int buflen; // size of the buffer | |
| 1401 address base_addr; | |
| 1402 }; | |
| 1403 | |
| 1404 static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr, | |
| 1405 unsigned size, void * param) { | |
| 1406 struct _modinfo *pmod = (struct _modinfo *)param; | |
| 1407 if (!pmod) return -1; | |
| 1408 | |
| 1409 if (base_addr <= pmod->addr && | |
| 1410 base_addr+size > pmod->addr) { | |
| 1411 // if a buffer is provided, copy path name to the buffer | |
| 1412 if (pmod->full_path) { | |
| 1413 jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname); | |
| 1414 } | |
| 1415 pmod->base_addr = base_addr; | |
| 1416 return 1; | |
| 1417 } | |
| 1418 return 0; | |
| 1419 } | |
| 1420 | |
| 1421 bool os::dll_address_to_library_name(address addr, char* buf, | |
| 1422 int buflen, int* offset) { | |
|
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1423 // buf is not optional, but offset is optional |
|
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1424 assert(buf != NULL, "sanity check"); |
|
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|
1425 |
| 0 | 1426 // NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always |
| 1427 // return the full path to the DLL file, sometimes it returns path | |
| 1428 // to the corresponding PDB file (debug info); sometimes it only | |
| 1429 // returns partial path, which makes life painful. | |
| 1430 | |
|
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|
1431 struct _modinfo mi; |
|
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1432 mi.addr = addr; |
|
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1433 mi.full_path = buf; |
|
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|
1434 mi.buflen = buflen; |
|
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|
1435 int pid = os::current_process_id(); |
|
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1436 if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) { |
|
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|
1437 // buf already contains path name |
|
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|
1438 if (offset) *offset = addr - mi.base_addr; |
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1439 return true; |
|
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|
1440 } |
|
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|
1441 |
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|
1442 buf[0] = '\0'; |
|
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1443 if (offset) *offset = -1; |
|
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|
1444 return false; |
| 0 | 1445 } |
| 1446 | |
| 1447 bool os::dll_address_to_function_name(address addr, char *buf, | |
| 1448 int buflen, int *offset) { | |
|
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1449 // buf is not optional, but offset is optional |
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|
1450 assert(buf != NULL, "sanity check"); |
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|
1451 |
| 4803 | 1452 if (Decoder::decode(addr, buf, buflen, offset)) { |
|
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1453 return true; |
|
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|
1454 } |
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|
1455 if (offset != NULL) *offset = -1; |
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|
1456 buf[0] = '\0'; |
| 0 | 1457 return false; |
| 1458 } | |
| 1459 | |
| 1460 // save the start and end address of jvm.dll into param[0] and param[1] | |
| 1461 static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr, | |
| 1462 unsigned size, void * param) { | |
| 1463 if (!param) return -1; | |
| 1464 | |
| 1465 if (base_addr <= (address)_locate_jvm_dll && | |
| 1466 base_addr+size > (address)_locate_jvm_dll) { | |
| 1467 ((address*)param)[0] = base_addr; | |
| 1468 ((address*)param)[1] = base_addr + size; | |
| 1469 return 1; | |
| 1470 } | |
| 1471 return 0; | |
| 1472 } | |
| 1473 | |
| 1474 address vm_lib_location[2]; // start and end address of jvm.dll | |
| 1475 | |
| 1476 // check if addr is inside jvm.dll | |
| 1477 bool os::address_is_in_vm(address addr) { | |
| 1478 if (!vm_lib_location[0] || !vm_lib_location[1]) { | |
| 1479 int pid = os::current_process_id(); | |
| 1480 if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) { | |
| 1481 assert(false, "Can't find jvm module."); | |
| 1482 return false; | |
| 1483 } | |
| 1484 } | |
| 1485 | |
| 1486 return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]); | |
| 1487 } | |
| 1488 | |
| 1489 // print module info; param is outputStream* | |
| 1490 static int _print_module(int pid, char* fname, address base, | |
| 1491 unsigned size, void* param) { | |
| 1492 if (!param) return -1; | |
| 1493 | |
| 1494 outputStream* st = (outputStream*)param; | |
| 1495 | |
| 1496 address end_addr = base + size; | |
| 1497 st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname); | |
| 1498 return 0; | |
| 1499 } | |
| 1500 | |
| 1501 // Loads .dll/.so and | |
| 1502 // in case of error it checks if .dll/.so was built for the | |
| 1503 // same architecture as Hotspot is running on | |
| 1504 void * os::dll_load(const char *name, char *ebuf, int ebuflen) | |
| 1505 { | |
| 1506 void * result = LoadLibrary(name); | |
| 1507 if (result != NULL) | |
| 1508 { | |
| 1509 return result; | |
| 1510 } | |
| 1511 | |
|
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|
1512 DWORD errcode = GetLastError(); |
| 0 | 1513 if (errcode == ERROR_MOD_NOT_FOUND) { |
| 1514 strncpy(ebuf, "Can't find dependent libraries", ebuflen-1); | |
| 1515 ebuf[ebuflen-1]='\0'; | |
| 1516 return NULL; | |
| 1517 } | |
| 1518 | |
| 1519 // Parsing dll below | |
| 1520 // If we can read dll-info and find that dll was built | |
| 1521 // for an architecture other than Hotspot is running in | |
| 1522 // - then print to buffer "DLL was built for a different architecture" | |
|
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|
1523 // else call os::lasterror to obtain system error message |
| 0 | 1524 |
| 1525 // Read system error message into ebuf | |
| 1526 // It may or may not be overwritten below (in the for loop and just above) | |
|
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|
1527 lasterror(ebuf, (size_t) ebuflen); |
| 0 | 1528 ebuf[ebuflen-1]='\0'; |
| 1529 int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0); | |
| 1530 if (file_descriptor<0) | |
| 1531 { | |
| 1532 return NULL; | |
| 1533 } | |
| 1534 | |
| 1535 uint32_t signature_offset; | |
| 1536 uint16_t lib_arch=0; | |
| 1537 bool failed_to_get_lib_arch= | |
| 1538 ( | |
| 1539 //Go to position 3c in the dll | |
| 1540 (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0) | |
| 1541 || | |
| 1542 // Read loacation of signature | |
| 1543 (sizeof(signature_offset)!= | |
| 1544 (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset)))) | |
| 1545 || | |
| 1546 //Go to COFF File Header in dll | |
| 1547 //that is located after"signature" (4 bytes long) | |
| 1548 (os::seek_to_file_offset(file_descriptor, | |
| 1549 signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0) | |
| 1550 || | |
| 1551 //Read field that contains code of architecture | |
| 1552 // that dll was build for | |
| 1553 (sizeof(lib_arch)!= | |
| 1554 (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch)))) | |
| 1555 ); | |
| 1556 | |
| 1557 ::close(file_descriptor); | |
| 1558 if (failed_to_get_lib_arch) | |
| 1559 { | |
|
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|
1560 // file i/o error - report os::lasterror(...) msg |
| 0 | 1561 return NULL; |
| 1562 } | |
| 1563 | |
| 1564 typedef struct | |
| 1565 { | |
| 1566 uint16_t arch_code; | |
| 1567 char* arch_name; | |
| 1568 } arch_t; | |
| 1569 | |
| 1570 static const arch_t arch_array[]={ | |
| 1571 {IMAGE_FILE_MACHINE_I386, (char*)"IA 32"}, | |
| 1572 {IMAGE_FILE_MACHINE_AMD64, (char*)"AMD 64"}, | |
| 1573 {IMAGE_FILE_MACHINE_IA64, (char*)"IA 64"} | |
| 1574 }; | |
| 1575 #if (defined _M_IA64) | |
| 1576 static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64; | |
| 1577 #elif (defined _M_AMD64) | |
| 1578 static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64; | |
| 1579 #elif (defined _M_IX86) | |
| 1580 static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386; | |
| 1581 #else | |
| 1582 #error Method os::dll_load requires that one of following \ | |
| 1583 is defined :_M_IA64,_M_AMD64 or _M_IX86 | |
| 1584 #endif | |
| 1585 | |
| 1586 | |
| 1587 // Obtain a string for printf operation | |
| 1588 // lib_arch_str shall contain string what platform this .dll was built for | |
| 1589 // running_arch_str shall string contain what platform Hotspot was built for | |
| 1590 char *running_arch_str=NULL,*lib_arch_str=NULL; | |
| 1591 for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++) | |
| 1592 { | |
| 1593 if (lib_arch==arch_array[i].arch_code) | |
| 1594 lib_arch_str=arch_array[i].arch_name; | |
| 1595 if (running_arch==arch_array[i].arch_code) | |
| 1596 running_arch_str=arch_array[i].arch_name; | |
| 1597 } | |
| 1598 | |
| 1599 assert(running_arch_str, | |
| 1600 "Didn't find runing architecture code in arch_array"); | |
| 1601 | |
| 1602 // If the architure is right | |
|
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|
1603 // but some other error took place - report os::lasterror(...) msg |
| 0 | 1604 if (lib_arch == running_arch) |
| 1605 { | |
| 1606 return NULL; | |
| 1607 } | |
| 1608 | |
| 1609 if (lib_arch_str!=NULL) | |
| 1610 { | |
| 1611 ::_snprintf(ebuf, ebuflen-1, | |
| 1612 "Can't load %s-bit .dll on a %s-bit platform", | |
| 1613 lib_arch_str,running_arch_str); | |
| 1614 } | |
| 1615 else | |
| 1616 { | |
| 1617 // don't know what architecture this dll was build for | |
| 1618 ::_snprintf(ebuf, ebuflen-1, | |
| 1619 "Can't load this .dll (machine code=0x%x) on a %s-bit platform", | |
| 1620 lib_arch,running_arch_str); | |
| 1621 } | |
| 1622 | |
| 1623 return NULL; | |
| 1624 } | |
| 1625 | |
| 1626 | |
| 1627 void os::print_dll_info(outputStream *st) { | |
| 1628 int pid = os::current_process_id(); | |
| 1629 st->print_cr("Dynamic libraries:"); | |
| 1630 enumerate_modules(pid, _print_module, (void *)st); | |
| 1631 } | |
| 1632 | |
|
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|
1633 void os::print_os_info_brief(outputStream* st) { |
|
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|
1634 os::print_os_info(st); |
|
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|
1635 } |
|
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|
1636 |
| 0 | 1637 void os::print_os_info(outputStream* st) { |
|
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|
1638 st->print("OS:"); |
|
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|
1639 |
|
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|
1640 os::win32::print_windows_version(st); |
|
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|
1641 } |
|
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|
1642 |
|
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|
1643 void os::win32::print_windows_version(outputStream* st) { |
|
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1644 OSVERSIONINFOEX osvi; |
|
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|
1645 SYSTEM_INFO si; |
|
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|
1646 |
|
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1647 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX)); |
|
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1648 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
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|
1649 |
|
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1650 if (!GetVersionEx((OSVERSIONINFO *)&osvi)) { |
|
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|
1651 st->print_cr("N/A"); |
|
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|
1652 return; |
|
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|
1653 } |
|
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|
1654 |
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1655 int os_vers = osvi.dwMajorVersion * 1000 + osvi.dwMinorVersion; |
|
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|
1656 |
|
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|
1657 ZeroMemory(&si, sizeof(SYSTEM_INFO)); |
|
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|
1658 if (os_vers >= 5002) { |
|
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|
1659 // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could |
|
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|
1660 // find out whether we are running on 64 bit processor or not. |
|
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|
1661 if (os::Kernel32Dll::GetNativeSystemInfoAvailable()) { |
|
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|
1662 os::Kernel32Dll::GetNativeSystemInfo(&si); |
|
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|
1663 } else { |
|
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|
1664 GetSystemInfo(&si); |
|
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|
1665 } |
|
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|
1666 } |
|
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|
1667 |
|
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1668 if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) { |
|
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|
1669 switch (os_vers) { |
|
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|
1670 case 3051: st->print(" Windows NT 3.51"); break; |
|
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changeset
|
1671 case 4000: st->print(" Windows NT 4.0"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1672 case 5000: st->print(" Windows 2000"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1673 case 5001: st->print(" Windows XP"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1674 case 5002: |
|
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1675 if (osvi.wProductType == VER_NT_WORKSTATION && |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1676 si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1677 st->print(" Windows XP x64 Edition"); |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1678 } else { |
|
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1679 st->print(" Windows Server 2003 family"); |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1680 } |
|
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1681 break; |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1682 |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1683 case 6000: |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1684 if (osvi.wProductType == VER_NT_WORKSTATION) { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1685 st->print(" Windows Vista"); |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1686 } else { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1687 st->print(" Windows Server 2008"); |
|
273
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 break; |
|
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1690 |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1691 case 6001: |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1692 if (osvi.wProductType == VER_NT_WORKSTATION) { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1693 st->print(" Windows 7"); |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1694 } else { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1695 st->print(" Windows Server 2008 R2"); |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1696 } |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1697 break; |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1698 |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1699 case 6002: |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1700 if (osvi.wProductType == VER_NT_WORKSTATION) { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1701 st->print(" Windows 8"); |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1702 } else { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1703 st->print(" Windows Server 2012"); |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1704 } |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1705 break; |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1706 |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1707 case 6003: |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1708 if (osvi.wProductType == VER_NT_WORKSTATION) { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1709 st->print(" Windows 8.1"); |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1710 } else { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1711 st->print(" Windows Server 2012 R2"); |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1712 } |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1713 break; |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1714 |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1715 default: // future os |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1716 // Unrecognized windows, print out its major and minor versions |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1717 st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1718 } |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1719 } else { |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1720 switch (os_vers) { |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1721 case 4000: st->print(" Windows 95"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1722 case 4010: st->print(" Windows 98"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1723 case 4090: st->print(" Windows Me"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1724 default: // future windows, print out its major and minor versions |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1725 st->print(" Windows %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1726 } |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1727 } |
|
12018
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1728 |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1729 if (os_vers >= 6000 && si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64) { |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1730 st->print(" , 64 bit"); |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1731 } |
|
98aa538fd97e
8022452: Hotspot needs to know about Windows 8.1 and Windows Server 2012 R2
mikael
parents:
11153
diff
changeset
|
1732 |
|
273
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1733 st->print(" Build %d", osvi.dwBuildNumber); |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1734 st->print(" %s", osvi.szCSDVersion); // service pack |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1735 st->cr(); |
| 0 | 1736 } |
| 1737 | |
|
3800
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1738 void os::pd_print_cpu_info(outputStream* st) { |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1739 // Nothing to do for now. |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1740 } |
|
bf6481e5f96d
7061225: os::print_cpu_info() should support os-specific data
jcoomes
parents:
3318
diff
changeset
|
1741 |
| 0 | 1742 void os::print_memory_info(outputStream* st) { |
| 1743 st->print("Memory:"); | |
| 1744 st->print(" %dk page", os::vm_page_size()>>10); | |
| 1745 | |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1746 // 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
|
1747 // 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
|
1748 MEMORYSTATUSEX ms; |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1749 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
|
1750 GlobalMemoryStatusEx(&ms); |
| 0 | 1751 |
| 1752 st->print(", physical %uk", os::physical_memory() >> 10); | |
| 1753 st->print("(%uk free)", os::available_memory() >> 10); | |
| 1754 | |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents:
717
diff
changeset
|
1755 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
|
1756 st->print("(%uk free)", ms.ullAvailPageFile >> 10); |
| 0 | 1757 st->cr(); |
| 1758 } | |
| 1759 | |
| 1760 void os::print_siginfo(outputStream *st, void *siginfo) { | |
| 1761 EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo; | |
| 1762 st->print("siginfo:"); | |
| 1763 st->print(" ExceptionCode=0x%x", er->ExceptionCode); | |
| 1764 | |
| 1765 if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 1766 er->NumberParameters >= 2) { | |
| 1767 switch (er->ExceptionInformation[0]) { | |
| 1768 case 0: st->print(", reading address"); break; | |
| 1769 case 1: st->print(", writing address"); break; | |
| 1770 default: st->print(", ExceptionInformation=" INTPTR_FORMAT, | |
| 1771 er->ExceptionInformation[0]); | |
| 1772 } | |
| 1773 st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]); | |
| 1774 } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR && | |
| 1775 er->NumberParameters >= 2 && UseSharedSpaces) { | |
| 1776 FileMapInfo* mapinfo = FileMapInfo::current_info(); | |
| 1777 if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) { | |
| 1778 st->print("\n\nError accessing class data sharing archive." \ | |
| 1779 " Mapped file inaccessible during execution, " \ | |
| 1780 " possible disk/network problem."); | |
| 1781 } | |
| 1782 } else { | |
| 1783 int num = er->NumberParameters; | |
| 1784 if (num > 0) { | |
| 1785 st->print(", ExceptionInformation="); | |
| 1786 for (int i = 0; i < num; i++) { | |
| 1787 st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]); | |
| 1788 } | |
| 1789 } | |
| 1790 } | |
| 1791 st->cr(); | |
| 1792 } | |
| 1793 | |
| 1794 void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) { | |
| 1795 // do nothing | |
| 1796 } | |
| 1797 | |
| 1798 static char saved_jvm_path[MAX_PATH] = {0}; | |
| 1799 | |
|
7456
7d42f3b08300
8005044: remove crufty '_g' support from HS runtime code
dcubed
parents:
7206
diff
changeset
|
1800 // Find the full path to the current module, jvm.dll |
| 0 | 1801 void os::jvm_path(char *buf, jint buflen) { |
| 1802 // Error checking. | |
| 1803 if (buflen < MAX_PATH) { | |
| 1804 assert(false, "must use a large-enough buffer"); | |
| 1805 buf[0] = '\0'; | |
| 1806 return; | |
| 1807 } | |
| 1808 // Lazy resolve the path to current module. | |
| 1809 if (saved_jvm_path[0] != 0) { | |
| 1810 strcpy(buf, saved_jvm_path); | |
| 1811 return; | |
| 1812 } | |
| 1813 | |
| 1985 | 1814 buf[0] = '\0'; |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
1815 if (Arguments::created_by_gamma_launcher()) { |
| 1985 | 1816 // Support for the gamma launcher. Check for an |
|
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
2023
diff
changeset
|
1817 // JAVA_HOME environment variable |
| 1985 | 1818 // and fix up the path so it looks like |
| 1819 // libjvm.so is installed there (append a fake suffix | |
| 1820 // hotspot/libjvm.so). | |
|
2027
aa6e219afbf1
7006354: Updates to Visual Studio project creation and development launcher
sla
parents:
2023
diff
changeset
|
1821 char* java_home_var = ::getenv("JAVA_HOME"); |
| 1985 | 1822 if (java_home_var != NULL && java_home_var[0] != 0) { |
| 1823 | |
| 1824 strncpy(buf, java_home_var, buflen); | |
| 1825 | |
| 1826 // determine if this is a legacy image or modules image | |
| 1827 // modules image doesn't have "jre" subdirectory | |
| 1828 size_t len = strlen(buf); | |
| 1829 char* jrebin_p = buf + len; | |
| 1830 jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\"); | |
| 1831 if (0 != _access(buf, 0)) { | |
| 1832 jio_snprintf(jrebin_p, buflen-len, "\\bin\\"); | |
| 1833 } | |
| 1834 len = strlen(buf); | |
| 1835 jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll"); | |
| 1836 } | |
| 1837 } | |
| 1838 | |
| 1839 if(buf[0] == '\0') { | |
| 0 | 1840 GetModuleFileName(vm_lib_handle, buf, buflen); |
| 1985 | 1841 } |
| 0 | 1842 strcpy(saved_jvm_path, buf); |
| 1843 } | |
| 1844 | |
| 1845 | |
| 1846 void os::print_jni_name_prefix_on(outputStream* st, int args_size) { | |
| 1847 #ifndef _WIN64 | |
| 1848 st->print("_"); | |
| 1849 #endif | |
| 1850 } | |
| 1851 | |
| 1852 | |
| 1853 void os::print_jni_name_suffix_on(outputStream* st, int args_size) { | |
| 1854 #ifndef _WIN64 | |
| 1855 st->print("@%d", args_size * sizeof(int)); | |
| 1856 #endif | |
| 1857 } | |
| 1858 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1859 // This method is a copy of JDK's sysGetLastErrorString |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1860 // from src/windows/hpi/src/system_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1861 |
|
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1862 size_t os::lasterror(char* buf, size_t len) { |
|
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1863 DWORD errval; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1864 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1865 if ((errval = GetLastError()) != 0) { |
|
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1866 // DOS error |
|
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
1867 size_t n = (size_t)FormatMessage( |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1868 FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1869 NULL, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1870 errval, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
1871 0, |
|
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1872 buf, |
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1873 (DWORD)len, |
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1874 NULL); |
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1875 if (n > 3) { |
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1876 // Drop final '.', CR, LF |
|
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1877 if (buf[n - 1] == '\n') n--; |
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1878 if (buf[n - 1] == '\r') n--; |
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1879 if (buf[n - 1] == '.') n--; |
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1880 buf[n] = '\0'; |
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1881 } |
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1882 return n; |
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1883 } |
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1884 |
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1885 if (errno != 0) { |
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1886 // C runtime error that has no corresponding DOS error code |
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1887 const char* s = strerror(errno); |
|
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1888 size_t n = strlen(s); |
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1889 if (n >= len) n = len - 1; |
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1890 strncpy(buf, s, n); |
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1891 buf[n] = '\0'; |
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1892 return n; |
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1893 } |
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1894 |
|
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1895 return 0; |
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1896 } |
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1897 |
|
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1898 int os::get_last_error() { |
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1899 DWORD error = GetLastError(); |
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1900 if (error == 0) |
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1901 error = errno; |
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1902 return (int)error; |
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1903 } |
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1904 |
| 0 | 1905 // sun.misc.Signal |
| 1906 // NOTE that this is a workaround for an apparent kernel bug where if | |
| 1907 // a signal handler for SIGBREAK is installed then that signal handler | |
| 1908 // takes priority over the console control handler for CTRL_CLOSE_EVENT. | |
| 1909 // See bug 4416763. | |
| 1910 static void (*sigbreakHandler)(int) = NULL; | |
| 1911 | |
| 1912 static void UserHandler(int sig, void *siginfo, void *context) { | |
| 1913 os::signal_notify(sig); | |
| 1914 // We need to reinstate the signal handler each time... | |
| 1915 os::signal(sig, (void*)UserHandler); | |
| 1916 } | |
| 1917 | |
| 1918 void* os::user_handler() { | |
| 1919 return (void*) UserHandler; | |
| 1920 } | |
| 1921 | |
| 1922 void* os::signal(int signal_number, void* handler) { | |
| 1923 if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) { | |
| 1924 void (*oldHandler)(int) = sigbreakHandler; | |
| 1925 sigbreakHandler = (void (*)(int)) handler; | |
| 1926 return (void*) oldHandler; | |
| 1927 } else { | |
| 1928 return (void*)::signal(signal_number, (void (*)(int))handler); | |
| 1929 } | |
| 1930 } | |
| 1931 | |
| 1932 void os::signal_raise(int signal_number) { | |
| 1933 raise(signal_number); | |
| 1934 } | |
| 1935 | |
| 1936 // The Win32 C runtime library maps all console control events other than ^C | |
| 1937 // into SIGBREAK, which makes it impossible to distinguish ^BREAK from close, | |
| 1938 // logoff, and shutdown events. We therefore install our own console handler | |
| 1939 // that raises SIGTERM for the latter cases. | |
| 1940 // | |
| 1941 static BOOL WINAPI consoleHandler(DWORD event) { | |
| 1942 switch(event) { | |
| 1943 case CTRL_C_EVENT: | |
| 1944 if (is_error_reported()) { | |
| 1945 // Ctrl-C is pressed during error reporting, likely because the error | |
| 1946 // handler fails to abort. Let VM die immediately. | |
| 1947 os::die(); | |
| 1948 } | |
| 1949 | |
| 1950 os::signal_raise(SIGINT); | |
| 1951 return TRUE; | |
| 1952 break; | |
| 1953 case CTRL_BREAK_EVENT: | |
| 1954 if (sigbreakHandler != NULL) { | |
| 1955 (*sigbreakHandler)(SIGBREAK); | |
| 1956 } | |
| 1957 return TRUE; | |
| 1958 break; | |
|
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1959 case CTRL_LOGOFF_EVENT: { |
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1960 // Don't terminate JVM if it is running in a non-interactive session, |
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1961 // such as a service process. |
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1962 USEROBJECTFLAGS flags; |
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1963 HANDLE handle = GetProcessWindowStation(); |
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1964 if (handle != NULL && |
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1965 GetUserObjectInformation(handle, UOI_FLAGS, &flags, |
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1966 sizeof( USEROBJECTFLAGS), NULL)) { |
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1967 // If it is a non-interactive session, let next handler to deal |
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1968 // with it. |
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1969 if ((flags.dwFlags & WSF_VISIBLE) == 0) { |
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1970 return FALSE; |
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1971 } |
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1972 } |
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1973 } |
| 0 | 1974 case CTRL_CLOSE_EVENT: |
| 1975 case CTRL_SHUTDOWN_EVENT: | |
| 1976 os::signal_raise(SIGTERM); | |
| 1977 return TRUE; | |
| 1978 break; | |
| 1979 default: | |
| 1980 break; | |
| 1981 } | |
| 1982 return FALSE; | |
| 1983 } | |
| 1984 | |
| 1985 /* | |
| 1986 * The following code is moved from os.cpp for making this | |
| 1987 * code platform specific, which it is by its very nature. | |
| 1988 */ | |
| 1989 | |
| 1990 // Return maximum OS signal used + 1 for internal use only | |
| 1991 // Used as exit signal for signal_thread | |
| 1992 int os::sigexitnum_pd(){ | |
| 1993 return NSIG; | |
| 1994 } | |
| 1995 | |
| 1996 // a counter for each possible signal value, including signal_thread exit signal | |
| 1997 static volatile jint pending_signals[NSIG+1] = { 0 }; | |
|
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1998 static HANDLE sig_sem = NULL; |
| 0 | 1999 |
| 2000 void os::signal_init_pd() { | |
| 2001 // Initialize signal structures | |
| 2002 memset((void*)pending_signals, 0, sizeof(pending_signals)); | |
| 2003 | |
| 2004 sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL); | |
| 2005 | |
| 2006 // Programs embedding the VM do not want it to attempt to receive | |
| 2007 // events like CTRL_LOGOFF_EVENT, which are used to implement the | |
| 2008 // shutdown hooks mechanism introduced in 1.3. For example, when | |
| 2009 // the VM is run as part of a Windows NT service (i.e., a servlet | |
| 2010 // engine in a web server), the correct behavior is for any console | |
| 2011 // control handler to return FALSE, not TRUE, because the OS's | |
| 2012 // "final" handler for such events allows the process to continue if | |
| 2013 // it is a service (while terminating it if it is not a service). | |
| 2014 // To make this behavior uniform and the mechanism simpler, we | |
| 2015 // completely disable the VM's usage of these console events if -Xrs | |
| 2016 // (=ReduceSignalUsage) is specified. This means, for example, that | |
| 2017 // the CTRL-BREAK thread dump mechanism is also disabled in this | |
| 2018 // case. See bugs 4323062, 4345157, and related bugs. | |
| 2019 | |
| 2020 if (!ReduceSignalUsage) { | |
| 2021 // Add a CTRL-C handler | |
| 2022 SetConsoleCtrlHandler(consoleHandler, TRUE); | |
| 2023 } | |
| 2024 } | |
| 2025 | |
| 2026 void os::signal_notify(int signal_number) { | |
| 2027 BOOL ret; | |
|
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2028 if (sig_sem != NULL) { |
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2029 Atomic::inc(&pending_signals[signal_number]); |
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2030 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); |
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2031 assert(ret != 0, "ReleaseSemaphore() failed"); |
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2032 } |
| 0 | 2033 } |
| 2034 | |
| 2035 static int check_pending_signals(bool wait_for_signal) { | |
| 2036 DWORD ret; | |
| 2037 while (true) { | |
| 2038 for (int i = 0; i < NSIG + 1; i++) { | |
| 2039 jint n = pending_signals[i]; | |
| 2040 if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) { | |
| 2041 return i; | |
| 2042 } | |
| 2043 } | |
| 2044 if (!wait_for_signal) { | |
| 2045 return -1; | |
| 2046 } | |
| 2047 | |
| 2048 JavaThread *thread = JavaThread::current(); | |
| 2049 | |
| 2050 ThreadBlockInVM tbivm(thread); | |
| 2051 | |
| 2052 bool threadIsSuspended; | |
| 2053 do { | |
| 2054 thread->set_suspend_equivalent(); | |
| 2055 // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self() | |
| 2056 ret = ::WaitForSingleObject(sig_sem, INFINITE); | |
| 2057 assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed"); | |
| 2058 | |
| 2059 // were we externally suspended while we were waiting? | |
| 2060 threadIsSuspended = thread->handle_special_suspend_equivalent_condition(); | |
| 2061 if (threadIsSuspended) { | |
| 2062 // | |
| 2063 // The semaphore has been incremented, but while we were waiting | |
| 2064 // another thread suspended us. We don't want to continue running | |
| 2065 // while suspended because that would surprise the thread that | |
| 2066 // suspended us. | |
| 2067 // | |
| 2068 ret = ::ReleaseSemaphore(sig_sem, 1, NULL); | |
| 2069 assert(ret != 0, "ReleaseSemaphore() failed"); | |
| 2070 | |
| 2071 thread->java_suspend_self(); | |
| 2072 } | |
| 2073 } while (threadIsSuspended); | |
| 2074 } | |
| 2075 } | |
| 2076 | |
| 2077 int os::signal_lookup() { | |
| 2078 return check_pending_signals(false); | |
| 2079 } | |
| 2080 | |
| 2081 int os::signal_wait() { | |
| 2082 return check_pending_signals(true); | |
| 2083 } | |
| 2084 | |
| 2085 // Implicit OS exception handling | |
| 2086 | |
| 2087 LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) { | |
| 2088 JavaThread* thread = JavaThread::current(); | |
| 2089 // Save pc in thread | |
| 2090 #ifdef _M_IA64 | |
| 7994 | 2091 // Do not blow up if no thread info available. |
| 2092 if (thread) { | |
| 2093 // Saving PRECISE pc (with slot information) in thread. | |
| 2094 uint64_t precise_pc = (uint64_t) exceptionInfo->ExceptionRecord->ExceptionAddress; | |
| 2095 // Convert precise PC into "Unix" format | |
| 2096 precise_pc = (precise_pc & 0xFFFFFFFFFFFFFFF0) | ((precise_pc & 0xF) >> 2); | |
| 2097 thread->set_saved_exception_pc((address)precise_pc); | |
| 2098 } | |
| 0 | 2099 // Set pc to handler |
| 2100 exceptionInfo->ContextRecord->StIIP = (DWORD64)handler; | |
| 7994 | 2101 // Clear out psr.ri (= Restart Instruction) in order to continue |
| 2102 // at the beginning of the target bundle. | |
| 2103 exceptionInfo->ContextRecord->StIPSR &= 0xFFFFF9FFFFFFFFFF; | |
| 2104 assert(((DWORD64)handler & 0xF) == 0, "Target address must point to the beginning of a bundle!"); | |
| 0 | 2105 #elif _M_AMD64 |
| 7994 | 2106 // Do not blow up if no thread info available. |
| 2107 if (thread) { | |
| 2108 thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Rip); | |
| 2109 } | |
| 0 | 2110 // Set pc to handler |
| 2111 exceptionInfo->ContextRecord->Rip = (DWORD64)handler; | |
| 2112 #else | |
| 7994 | 2113 // Do not blow up if no thread info available. |
| 2114 if (thread) { | |
| 2115 thread->set_saved_exception_pc((address)(DWORD_PTR)exceptionInfo->ContextRecord->Eip); | |
| 2116 } | |
| 0 | 2117 // Set pc to handler |
| 7994 | 2118 exceptionInfo->ContextRecord->Eip = (DWORD)(DWORD_PTR)handler; |
| 0 | 2119 #endif |
| 2120 | |
| 2121 // Continue the execution | |
| 2122 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2123 } | |
| 2124 | |
| 2125 | |
| 2126 // Used for PostMortemDump | |
| 2127 extern "C" void safepoints(); | |
| 2128 extern "C" void find(int x); | |
| 2129 extern "C" void events(); | |
| 2130 | |
| 2131 // According to Windows API documentation, an illegal instruction sequence should generate | |
| 2132 // the 0xC000001C exception code. However, real world experience shows that occasionnaly | |
| 2133 // the execution of an illegal instruction can generate the exception code 0xC000001E. This | |
| 2134 // seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems). | |
| 2135 | |
| 2136 #define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E | |
| 2137 | |
| 2138 // From "Execution Protection in the Windows Operating System" draft 0.35 | |
| 2139 // Once a system header becomes available, the "real" define should be | |
| 2140 // included or copied here. | |
| 2141 #define EXCEPTION_INFO_EXEC_VIOLATION 0x08 | |
| 2142 | |
| 7994 | 2143 // Handle NAT Bit consumption on IA64. |
| 2144 #ifdef _M_IA64 | |
| 2145 #define EXCEPTION_REG_NAT_CONSUMPTION STATUS_REG_NAT_CONSUMPTION | |
| 2146 #endif | |
| 2147 | |
| 2148 // Windows Vista/2008 heap corruption check | |
| 2149 #define EXCEPTION_HEAP_CORRUPTION 0xC0000374 | |
| 2150 | |
| 0 | 2151 #define def_excpt(val) #val, val |
| 2152 | |
| 2153 struct siglabel { | |
| 2154 char *name; | |
| 2155 int number; | |
| 2156 }; | |
| 2157 | |
|
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2158 // All Visual C++ exceptions thrown from code generated by the Microsoft Visual |
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2159 // C++ compiler contain this error code. Because this is a compiler-generated |
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2160 // error, the code is not listed in the Win32 API header files. |
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2161 // The code is actually a cryptic mnemonic device, with the initial "E" |
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2162 // standing for "exception" and the final 3 bytes (0x6D7363) representing the |
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2163 // ASCII values of "msc". |
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2164 |
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2165 #define EXCEPTION_UNCAUGHT_CXX_EXCEPTION 0xE06D7363 |
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2166 |
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2167 |
| 0 | 2168 struct siglabel exceptlabels[] = { |
| 2169 def_excpt(EXCEPTION_ACCESS_VIOLATION), | |
| 2170 def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT), | |
| 2171 def_excpt(EXCEPTION_BREAKPOINT), | |
| 2172 def_excpt(EXCEPTION_SINGLE_STEP), | |
| 2173 def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED), | |
| 2174 def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND), | |
| 2175 def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO), | |
| 2176 def_excpt(EXCEPTION_FLT_INEXACT_RESULT), | |
| 2177 def_excpt(EXCEPTION_FLT_INVALID_OPERATION), | |
| 2178 def_excpt(EXCEPTION_FLT_OVERFLOW), | |
| 2179 def_excpt(EXCEPTION_FLT_STACK_CHECK), | |
| 2180 def_excpt(EXCEPTION_FLT_UNDERFLOW), | |
| 2181 def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO), | |
| 2182 def_excpt(EXCEPTION_INT_OVERFLOW), | |
| 2183 def_excpt(EXCEPTION_PRIV_INSTRUCTION), | |
| 2184 def_excpt(EXCEPTION_IN_PAGE_ERROR), | |
| 2185 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION), | |
| 2186 def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2), | |
| 2187 def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION), | |
| 2188 def_excpt(EXCEPTION_STACK_OVERFLOW), | |
| 2189 def_excpt(EXCEPTION_INVALID_DISPOSITION), | |
| 2190 def_excpt(EXCEPTION_GUARD_PAGE), | |
| 2191 def_excpt(EXCEPTION_INVALID_HANDLE), | |
|
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2192 def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION), |
| 7994 | 2193 def_excpt(EXCEPTION_HEAP_CORRUPTION), |
| 2194 #ifdef _M_IA64 | |
| 2195 def_excpt(EXCEPTION_REG_NAT_CONSUMPTION), | |
| 2196 #endif | |
| 0 | 2197 NULL, 0 |
| 2198 }; | |
| 2199 | |
| 2200 const char* os::exception_name(int exception_code, char *buf, size_t size) { | |
| 2201 for (int i = 0; exceptlabels[i].name != NULL; i++) { | |
| 2202 if (exceptlabels[i].number == exception_code) { | |
| 2203 jio_snprintf(buf, size, "%s", exceptlabels[i].name); | |
| 2204 return buf; | |
| 2205 } | |
| 2206 } | |
| 2207 | |
| 2208 return NULL; | |
| 2209 } | |
| 2210 | |
| 2211 //----------------------------------------------------------------------------- | |
| 2212 LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2213 // handle exception caused by idiv; should only happen for -MinInt/-1 | |
| 2214 // (division by zero is handled explicitly) | |
| 2215 #ifdef _M_IA64 | |
| 2216 assert(0, "Fix Handle_IDiv_Exception"); | |
| 2217 #elif _M_AMD64 | |
| 2218 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2219 address pc = (address)ctx->Rip; | |
| 2220 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2221 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2222 assert(ctx->Rax == min_jint, "unexpected idiv exception"); | |
| 2223 // set correct result values and continue after idiv instruction | |
| 2224 ctx->Rip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2225 ctx->Rax = (DWORD)min_jint; // result | |
| 2226 ctx->Rdx = (DWORD)0; // remainder | |
| 2227 // Continue the execution | |
| 2228 #else | |
| 2229 PCONTEXT ctx = exceptionInfo->ContextRecord; | |
| 2230 address pc = (address)ctx->Eip; | |
| 2231 assert(pc[0] == 0xF7, "not an idiv opcode"); | |
| 2232 assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands"); | |
| 2233 assert(ctx->Eax == min_jint, "unexpected idiv exception"); | |
| 2234 // set correct result values and continue after idiv instruction | |
| 2235 ctx->Eip = (DWORD)pc + 2; // idiv reg, reg is 2 bytes | |
| 2236 ctx->Eax = (DWORD)min_jint; // result | |
| 2237 ctx->Edx = (DWORD)0; // remainder | |
| 2238 // Continue the execution | |
| 2239 #endif | |
| 2240 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2241 } | |
| 2242 | |
| 2243 #ifndef _WIN64 | |
| 2244 //----------------------------------------------------------------------------- | |
| 2245 LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
|
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2246 // handle exception caused by native method modifying control word |
| 0 | 2247 PCONTEXT ctx = exceptionInfo->ContextRecord; |
| 2248 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2249 | |
| 2250 switch (exception_code) { | |
| 2251 case EXCEPTION_FLT_DENORMAL_OPERAND: | |
| 2252 case EXCEPTION_FLT_DIVIDE_BY_ZERO: | |
| 2253 case EXCEPTION_FLT_INEXACT_RESULT: | |
| 2254 case EXCEPTION_FLT_INVALID_OPERATION: | |
| 2255 case EXCEPTION_FLT_OVERFLOW: | |
| 2256 case EXCEPTION_FLT_STACK_CHECK: | |
| 2257 case EXCEPTION_FLT_UNDERFLOW: | |
| 2258 jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std()); | |
| 2259 if (fp_control_word != ctx->FloatSave.ControlWord) { | |
| 2260 // Restore FPCW and mask out FLT exceptions | |
| 2261 ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0; | |
| 2262 // Mask out pending FLT exceptions | |
| 2263 ctx->FloatSave.StatusWord &= 0xffffff00; | |
| 2264 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2265 } | |
| 2266 } | |
|
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2267 |
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2268 if (prev_uef_handler != NULL) { |
|
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2269 // We didn't handle this exception so pass it to the previous |
|
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2270 // UnhandledExceptionFilter. |
|
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2271 return (prev_uef_handler)(exceptionInfo); |
|
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2272 } |
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|
2273 |
| 0 | 2274 return EXCEPTION_CONTINUE_SEARCH; |
| 2275 } | |
| 2276 #else //_WIN64 | |
| 2277 /* | |
| 2278 On Windows, the mxcsr control bits are non-volatile across calls | |
| 2279 See also CR 6192333 | |
| 2280 If EXCEPTION_FLT_* happened after some native method modified | |
| 2281 mxcsr - it is not a jvm fault. | |
| 2282 However should we decide to restore of mxcsr after a faulty | |
| 2283 native method we can uncomment following code | |
| 2284 jint MxCsr = INITIAL_MXCSR; | |
| 2285 // we can't use StubRoutines::addr_mxcsr_std() | |
| 2286 // because in Win64 mxcsr is not saved there | |
| 2287 if (MxCsr != ctx->MxCsr) { | |
| 2288 ctx->MxCsr = MxCsr; | |
| 2289 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2290 } | |
| 2291 | |
| 2292 */ | |
| 2293 #endif //_WIN64 | |
| 2294 | |
| 2295 | |
| 2296 // Fatal error reporting is single threaded so we can make this a | |
| 2297 // static and preallocated. If it's more than MAX_PATH silently ignore | |
| 2298 // it. | |
| 2299 static char saved_error_file[MAX_PATH] = {0}; | |
| 2300 | |
| 2301 void os::set_error_file(const char *logfile) { | |
| 2302 if (strlen(logfile) <= MAX_PATH) { | |
| 2303 strncpy(saved_error_file, logfile, MAX_PATH); | |
| 2304 } | |
| 2305 } | |
| 2306 | |
| 2307 static inline void report_error(Thread* t, DWORD exception_code, | |
| 2308 address addr, void* siginfo, void* context) { | |
| 2309 VMError err(t, exception_code, addr, siginfo, context); | |
| 2310 err.report_and_die(); | |
| 2311 | |
| 2312 // If UseOsErrorReporting, this will return here and save the error file | |
| 2313 // somewhere where we can find it in the minidump. | |
| 2314 } | |
| 2315 | |
| 2316 //----------------------------------------------------------------------------- | |
| 2317 LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2318 if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH; | |
| 2319 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2320 #ifdef _M_IA64 | |
| 7994 | 2321 // On Itanium, we need the "precise pc", which has the slot number coded |
| 2322 // into the least 4 bits: 0000=slot0, 0100=slot1, 1000=slot2 (Windows format). | |
| 2323 address pc = (address) exceptionInfo->ExceptionRecord->ExceptionAddress; | |
| 2324 // Convert the pc to "Unix format", which has the slot number coded | |
| 2325 // into the least 2 bits: 0000=slot0, 0001=slot1, 0010=slot2 | |
| 2326 // This is needed for IA64 because "relocation" / "implicit null check" / "poll instruction" | |
| 2327 // information is saved in the Unix format. | |
| 2328 address pc_unix_format = (address) ((((uint64_t)pc) & 0xFFFFFFFFFFFFFFF0) | ((((uint64_t)pc) & 0xF) >> 2)); | |
| 0 | 2329 #elif _M_AMD64 |
| 2330 address pc = (address) exceptionInfo->ContextRecord->Rip; | |
| 2331 #else | |
| 2332 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2333 #endif | |
| 2334 Thread* t = ThreadLocalStorage::get_thread_slow(); // slow & steady | |
| 2335 | |
| 11127 | 2336 // Handle SafeFetch32 and SafeFetchN exceptions. |
| 2337 if (StubRoutines::is_safefetch_fault(pc)) { | |
| 2338 return Handle_Exception(exceptionInfo, StubRoutines::continuation_for_safefetch_fault(pc)); | |
| 2339 } | |
| 2340 | |
| 0 | 2341 #ifndef _WIN64 |
| 2342 // Execution protection violation - win32 running on AMD64 only | |
| 2343 // Handled first to avoid misdiagnosis as a "normal" access violation; | |
| 2344 // This is safe to do because we have a new/unique ExceptionInformation | |
| 2345 // code for this condition. | |
| 2346 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2347 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2348 int exception_subcode = (int) exceptionRecord->ExceptionInformation[0]; | |
| 2349 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2350 | |
| 2351 if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 2352 int page_size = os::vm_page_size(); | |
| 2353 | |
| 2354 // Make sure the pc and the faulting address are sane. | |
| 2355 // | |
| 2356 // If an instruction spans a page boundary, and the page containing | |
| 2357 // the beginning of the instruction is executable but the following | |
| 2358 // page is not, the pc and the faulting address might be slightly | |
| 2359 // different - we still want to unguard the 2nd page in this case. | |
| 2360 // | |
| 2361 // 15 bytes seems to be a (very) safe value for max instruction size. | |
| 2362 bool pc_is_near_addr = | |
| 2363 (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15); | |
| 2364 bool instr_spans_page_boundary = | |
| 2365 (align_size_down((intptr_t) pc ^ (intptr_t) addr, | |
| 2366 (intptr_t) page_size) > 0); | |
| 2367 | |
| 2368 if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) { | |
| 2369 static volatile address last_addr = | |
| 2370 (address) os::non_memory_address_word(); | |
| 2371 | |
| 2372 // In conservative mode, don't unguard unless the address is in the VM | |
| 2373 if (UnguardOnExecutionViolation > 0 && addr != last_addr && | |
| 2374 (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) { | |
| 2375 | |
|
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|
2376 // Set memory to RWX and retry |
| 0 | 2377 address page_start = |
| 2378 (address) align_size_down((intptr_t) addr, (intptr_t) page_size); | |
|
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|
2379 bool res = os::protect_memory((char*) page_start, page_size, |
|
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2380 os::MEM_PROT_RWX); |
| 0 | 2381 |
| 2382 if (PrintMiscellaneous && Verbose) { | |
| 2383 char buf[256]; | |
| 2384 jio_snprintf(buf, sizeof(buf), "Execution protection violation " | |
| 2385 "at " INTPTR_FORMAT | |
| 2386 ", unguarding " INTPTR_FORMAT ": %s", addr, | |
| 2387 page_start, (res ? "success" : strerror(errno))); | |
| 2388 tty->print_raw_cr(buf); | |
| 2389 } | |
| 2390 | |
| 2391 // Set last_addr so if we fault again at the same address, we don't | |
| 2392 // end up in an endless loop. | |
| 2393 // | |
| 2394 // There are two potential complications here. Two threads trapping | |
| 2395 // at the same address at the same time could cause one of the | |
| 2396 // threads to think it already unguarded, and abort the VM. Likely | |
| 2397 // very rare. | |
| 2398 // | |
| 2399 // The other race involves two threads alternately trapping at | |
| 2400 // different addresses and failing to unguard the page, resulting in | |
| 2401 // an endless loop. This condition is probably even more unlikely | |
| 2402 // than the first. | |
| 2403 // | |
| 2404 // Although both cases could be avoided by using locks or thread | |
| 2405 // local last_addr, these solutions are unnecessary complication: | |
| 2406 // this handler is a best-effort safety net, not a complete solution. | |
| 2407 // It is disabled by default and should only be used as a workaround | |
| 2408 // in case we missed any no-execute-unsafe VM code. | |
| 2409 | |
| 2410 last_addr = addr; | |
| 2411 | |
| 2412 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2413 } | |
| 2414 } | |
| 2415 | |
| 2416 // Last unguard failed or not unguarding | |
| 2417 tty->print_raw_cr("Execution protection violation"); | |
| 2418 report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord, | |
| 2419 exceptionInfo->ContextRecord); | |
| 2420 return EXCEPTION_CONTINUE_SEARCH; | |
| 2421 } | |
| 2422 } | |
| 2423 #endif // _WIN64 | |
| 2424 | |
| 2425 // Check to see if we caught the safepoint code in the | |
| 2426 // process of write protecting the memory serialization page. | |
| 2427 // It write enables the page immediately after protecting it | |
| 2428 // so just return. | |
| 2429 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 2430 JavaThread* thread = (JavaThread*) t; | |
| 2431 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2432 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2433 if ( os::is_memory_serialize_page(thread, addr) ) { | |
| 2434 // Block current thread until the memory serialize page permission restored. | |
| 2435 os::block_on_serialize_page_trap(); | |
| 2436 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2437 } | |
| 2438 } | |
| 2439 | |
| 2440 if (t != NULL && t->is_Java_thread()) { | |
| 2441 JavaThread* thread = (JavaThread*) t; | |
| 2442 bool in_java = thread->thread_state() == _thread_in_Java; | |
| 2443 | |
| 2444 // Handle potential stack overflows up front. | |
| 2445 if (exception_code == EXCEPTION_STACK_OVERFLOW) { | |
| 2446 if (os::uses_stack_guard_pages()) { | |
| 2447 #ifdef _M_IA64 | |
| 7994 | 2448 // Use guard page for register stack. |
| 0 | 2449 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; |
| 2450 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 7994 | 2451 // Check for a register stack overflow on Itanium |
| 2452 if (thread->addr_inside_register_stack_red_zone(addr)) { | |
| 2453 // Fatal red zone violation happens if the Java program | |
| 2454 // catches a StackOverflow error and does so much processing | |
| 2455 // that it runs beyond the unprotected yellow guard zone. As | |
| 2456 // a result, we are out of here. | |
| 2457 fatal("ERROR: Unrecoverable stack overflow happened. JVM will exit."); | |
| 2458 } else if(thread->addr_inside_register_stack(addr)) { | |
| 2459 // Disable the yellow zone which sets the state that | |
| 2460 // we've got a stack overflow problem. | |
| 2461 if (thread->stack_yellow_zone_enabled()) { | |
| 2462 thread->disable_stack_yellow_zone(); | |
| 2463 } | |
| 2464 // Give us some room to process the exception. | |
| 2465 thread->disable_register_stack_guard(); | |
| 2466 // Tracing with +Verbose. | |
| 2467 if (Verbose) { | |
| 2468 tty->print_cr("SOF Compiled Register Stack overflow at " INTPTR_FORMAT " (SIGSEGV)", pc); | |
| 2469 tty->print_cr("Register Stack access at " INTPTR_FORMAT, addr); | |
| 2470 tty->print_cr("Register Stack base " INTPTR_FORMAT, thread->register_stack_base()); | |
| 2471 tty->print_cr("Register Stack [" INTPTR_FORMAT "," INTPTR_FORMAT "]", | |
| 2472 thread->register_stack_base(), | |
| 2473 thread->register_stack_base() + thread->stack_size()); | |
| 2474 } | |
| 2475 | |
| 2476 // Reguard the permanent register stack red zone just to be sure. | |
| 2477 // We saw Windows silently disabling this without telling us. | |
| 2478 thread->enable_register_stack_red_zone(); | |
| 2479 | |
| 2480 return Handle_Exception(exceptionInfo, | |
| 2481 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 0 | 2482 } |
| 2483 #endif | |
| 2484 if (thread->stack_yellow_zone_enabled()) { | |
| 2485 // Yellow zone violation. The o/s has unprotected the first yellow | |
| 2486 // zone page for us. Note: must call disable_stack_yellow_zone to | |
| 2487 // update the enabled status, even if the zone contains only one page. | |
| 2488 thread->disable_stack_yellow_zone(); | |
| 2489 // If not in java code, return and hope for the best. | |
| 2490 return in_java ? Handle_Exception(exceptionInfo, | |
| 2491 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)) | |
| 2492 : EXCEPTION_CONTINUE_EXECUTION; | |
| 2493 } else { | |
| 2494 // Fatal red zone violation. | |
| 2495 thread->disable_stack_red_zone(); | |
| 2496 tty->print_raw_cr("An unrecoverable stack overflow has occurred."); | |
| 2497 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2498 exceptionInfo->ContextRecord); | |
| 2499 return EXCEPTION_CONTINUE_SEARCH; | |
| 2500 } | |
| 2501 } else if (in_java) { | |
| 2502 // JVM-managed guard pages cannot be used on win95/98. The o/s provides | |
| 2503 // a one-time-only guard page, which it has released to us. The next | |
| 2504 // stack overflow on this thread will result in an ACCESS_VIOLATION. | |
| 2505 return Handle_Exception(exceptionInfo, | |
| 2506 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2507 } else { | |
| 2508 // Can only return and hope for the best. Further stack growth will | |
| 2509 // result in an ACCESS_VIOLATION. | |
| 2510 return EXCEPTION_CONTINUE_EXECUTION; | |
| 2511 } | |
| 2512 } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2513 // Either stack overflow or null pointer exception. | |
| 2514 if (in_java) { | |
| 2515 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2516 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2517 address stack_end = thread->stack_base() - thread->stack_size(); | |
| 2518 if (addr < stack_end && addr >= stack_end - os::vm_page_size()) { | |
| 2519 // Stack overflow. | |
| 2520 assert(!os::uses_stack_guard_pages(), | |
| 2521 "should be caught by red zone code above."); | |
| 2522 return Handle_Exception(exceptionInfo, | |
| 2523 SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW)); | |
| 2524 } | |
| 2525 // | |
| 2526 // Check for safepoint polling and implicit null | |
| 2527 // We only expect null pointers in the stubs (vtable) | |
| 2528 // the rest are checked explicitly now. | |
| 2529 // | |
| 2530 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2531 if (cb != NULL) { | |
| 2532 if (os::is_poll_address(addr)) { | |
| 2533 address stub = SharedRuntime::get_poll_stub(pc); | |
| 2534 return Handle_Exception(exceptionInfo, stub); | |
| 2535 } | |
| 2536 } | |
| 2537 { | |
| 2538 #ifdef _WIN64 | |
| 2539 // | |
| 2540 // If it's a legal stack address map the entire region in | |
| 2541 // | |
| 2542 PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord; | |
| 2543 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 2544 if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) { | |
| 2545 addr = (address)((uintptr_t)addr & | |
| 2546 (~((uintptr_t)os::vm_page_size() - (uintptr_t)1))); | |
| 656 | 2547 os::commit_memory((char *)addr, thread->stack_base() - addr, |
|
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2548 !ExecMem); |
| 0 | 2549 return EXCEPTION_CONTINUE_EXECUTION; |
| 2550 } | |
| 2551 else | |
| 2552 #endif | |
| 2553 { | |
| 2554 // Null pointer exception. | |
| 2555 #ifdef _M_IA64 | |
| 7994 | 2556 // Process implicit null checks in compiled code. Note: Implicit null checks |
| 2557 // can happen even if "ImplicitNullChecks" is disabled, e.g. in vtable stubs. | |
| 2558 if (CodeCache::contains((void*) pc_unix_format) && !MacroAssembler::needs_explicit_null_check((intptr_t) addr)) { | |
| 2559 CodeBlob *cb = CodeCache::find_blob_unsafe(pc_unix_format); | |
| 2560 // Handle implicit null check in UEP method entry | |
| 2561 if (cb && (cb->is_frame_complete_at(pc) || | |
| 2562 (cb->is_nmethod() && ((nmethod *)cb)->inlinecache_check_contains(pc)))) { | |
| 2563 if (Verbose) { | |
| 2564 intptr_t *bundle_start = (intptr_t*) ((intptr_t) pc_unix_format & 0xFFFFFFFFFFFFFFF0); | |
| 2565 tty->print_cr("trap: null_check at " INTPTR_FORMAT " (SIGSEGV)", pc_unix_format); | |
| 2566 tty->print_cr(" to addr " INTPTR_FORMAT, addr); | |
| 2567 tty->print_cr(" bundle is " INTPTR_FORMAT " (high), " INTPTR_FORMAT " (low)", | |
| 2568 *(bundle_start + 1), *bundle_start); | |
| 0 | 2569 } |
| 2570 return Handle_Exception(exceptionInfo, | |
| 7994 | 2571 SharedRuntime::continuation_for_implicit_exception(thread, pc_unix_format, SharedRuntime::IMPLICIT_NULL)); |
| 0 | 2572 } |
| 7994 | 2573 } |
| 2574 | |
| 2575 // Implicit null checks were processed above. Hence, we should not reach | |
| 2576 // here in the usual case => die! | |
| 2577 if (Verbose) tty->print_raw_cr("Access violation, possible null pointer exception"); | |
| 0 | 2578 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, |
| 2579 exceptionInfo->ContextRecord); | |
| 2580 return EXCEPTION_CONTINUE_SEARCH; | |
| 7994 | 2581 |
| 2582 #else // !IA64 | |
| 0 | 2583 |
| 2584 // Windows 98 reports faulting addresses incorrectly | |
| 2585 if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) || | |
| 2586 !os::win32::is_nt()) { | |
|
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2587 address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL); |
|
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|
2588 if (stub != NULL) return Handle_Exception(exceptionInfo, stub); |
| 0 | 2589 } |
| 2590 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2591 exceptionInfo->ContextRecord); | |
| 2592 return EXCEPTION_CONTINUE_SEARCH; | |
| 2593 #endif | |
| 2594 } | |
| 2595 } | |
| 2596 } | |
| 2597 | |
| 2598 #ifdef _WIN64 | |
| 2599 // Special care for fast JNI field accessors. | |
| 2600 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks | |
| 2601 // in and the heap gets shrunk before the field access. | |
| 2602 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2603 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2604 if (addr != (address)-1) { | |
| 2605 return Handle_Exception(exceptionInfo, addr); | |
| 2606 } | |
| 2607 } | |
| 2608 #endif | |
| 2609 | |
| 2610 // Stack overflow or null pointer exception in native code. | |
| 2611 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2612 exceptionInfo->ContextRecord); | |
| 2613 return EXCEPTION_CONTINUE_SEARCH; | |
| 7994 | 2614 } // /EXCEPTION_ACCESS_VIOLATION |
| 2615 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - | |
| 2616 #if defined _M_IA64 | |
| 2617 else if ((exception_code == EXCEPTION_ILLEGAL_INSTRUCTION || | |
| 2618 exception_code == EXCEPTION_ILLEGAL_INSTRUCTION_2)) { | |
| 2619 M37 handle_wrong_method_break(0, NativeJump::HANDLE_WRONG_METHOD, PR0); | |
| 2620 | |
| 2621 // Compiled method patched to be non entrant? Following conditions must apply: | |
| 2622 // 1. must be first instruction in bundle | |
| 2623 // 2. must be a break instruction with appropriate code | |
| 2624 if((((uint64_t) pc & 0x0F) == 0) && | |
| 2625 (((IPF_Bundle*) pc)->get_slot0() == handle_wrong_method_break.bits())) { | |
| 2626 return Handle_Exception(exceptionInfo, | |
| 2627 (address)SharedRuntime::get_handle_wrong_method_stub()); | |
| 2628 } | |
| 2629 } // /EXCEPTION_ILLEGAL_INSTRUCTION | |
| 2630 #endif | |
| 2631 | |
| 0 | 2632 |
| 2633 if (in_java) { | |
| 2634 switch (exception_code) { | |
| 2635 case EXCEPTION_INT_DIVIDE_BY_ZERO: | |
| 2636 return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO)); | |
| 2637 | |
| 2638 case EXCEPTION_INT_OVERFLOW: | |
| 2639 return Handle_IDiv_Exception(exceptionInfo); | |
| 2640 | |
| 2641 } // switch | |
| 2642 } | |
| 2643 #ifndef _WIN64 | |
|
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2644 if (((thread->thread_state() == _thread_in_Java) || |
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2645 (thread->thread_state() == _thread_in_native)) && |
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2646 exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION) |
| 0 | 2647 { |
| 2648 LONG result=Handle_FLT_Exception(exceptionInfo); | |
| 2649 if (result==EXCEPTION_CONTINUE_EXECUTION) return result; | |
| 2650 } | |
| 2651 #endif //_WIN64 | |
| 2652 } | |
| 2653 | |
| 2654 if (exception_code != EXCEPTION_BREAKPOINT) { | |
| 2655 report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord, | |
| 2656 exceptionInfo->ContextRecord); | |
| 2657 } | |
| 2658 return EXCEPTION_CONTINUE_SEARCH; | |
| 2659 } | |
| 2660 | |
| 2661 #ifndef _WIN64 | |
| 2662 // Special care for fast JNI accessors. | |
| 2663 // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and | |
| 2664 // the heap gets shrunk before the field access. | |
| 2665 // Need to install our own structured exception handler since native code may | |
| 2666 // install its own. | |
| 2667 LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) { | |
| 2668 DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode; | |
| 2669 if (exception_code == EXCEPTION_ACCESS_VIOLATION) { | |
| 2670 address pc = (address) exceptionInfo->ContextRecord->Eip; | |
| 2671 address addr = JNI_FastGetField::find_slowcase_pc(pc); | |
| 2672 if (addr != (address)-1) { | |
| 2673 return Handle_Exception(exceptionInfo, addr); | |
| 2674 } | |
| 2675 } | |
| 2676 return EXCEPTION_CONTINUE_SEARCH; | |
| 2677 } | |
| 2678 | |
| 2679 #define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \ | |
| 2680 Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \ | |
| 2681 __try { \ | |
| 2682 return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \ | |
| 2683 } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \ | |
| 2684 } \ | |
| 2685 return 0; \ | |
| 2686 } | |
| 2687 | |
| 2688 DEFINE_FAST_GETFIELD(jboolean, bool, Boolean) | |
| 2689 DEFINE_FAST_GETFIELD(jbyte, byte, Byte) | |
| 2690 DEFINE_FAST_GETFIELD(jchar, char, Char) | |
| 2691 DEFINE_FAST_GETFIELD(jshort, short, Short) | |
| 2692 DEFINE_FAST_GETFIELD(jint, int, Int) | |
| 2693 DEFINE_FAST_GETFIELD(jlong, long, Long) | |
| 2694 DEFINE_FAST_GETFIELD(jfloat, float, Float) | |
| 2695 DEFINE_FAST_GETFIELD(jdouble, double, Double) | |
| 2696 | |
| 2697 address os::win32::fast_jni_accessor_wrapper(BasicType type) { | |
| 2698 switch (type) { | |
| 2699 case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper; | |
| 2700 case T_BYTE: return (address)jni_fast_GetByteField_wrapper; | |
| 2701 case T_CHAR: return (address)jni_fast_GetCharField_wrapper; | |
| 2702 case T_SHORT: return (address)jni_fast_GetShortField_wrapper; | |
| 2703 case T_INT: return (address)jni_fast_GetIntField_wrapper; | |
| 2704 case T_LONG: return (address)jni_fast_GetLongField_wrapper; | |
| 2705 case T_FLOAT: return (address)jni_fast_GetFloatField_wrapper; | |
| 2706 case T_DOUBLE: return (address)jni_fast_GetDoubleField_wrapper; | |
| 2707 default: ShouldNotReachHere(); | |
| 2708 } | |
| 2709 return (address)-1; | |
| 2710 } | |
| 2711 #endif | |
| 2712 | |
|
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2713 #ifndef PRODUCT |
|
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2714 void os::win32::call_test_func_with_wrapper(void (*funcPtr)(void)) { |
|
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|
2715 // Install a win32 structured exception handler around the test |
|
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|
2716 // function call so the VM can generate an error dump if needed. |
|
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|
2717 __try { |
|
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|
2718 (*funcPtr)(); |
|
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|
2719 } __except(topLevelExceptionFilter( |
|
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|
2720 (_EXCEPTION_POINTERS*)_exception_info())) { |
|
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|
2721 // Nothing to do. |
|
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|
2722 } |
|
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|
2723 } |
|
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|
2724 #endif |
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|
2725 |
| 0 | 2726 // Virtual Memory |
| 2727 | |
| 2728 int os::vm_page_size() { return os::win32::vm_page_size(); } | |
| 2729 int os::vm_allocation_granularity() { | |
| 2730 return os::win32::vm_allocation_granularity(); | |
| 2731 } | |
| 2732 | |
| 2733 // Windows large page support is available on Windows 2003. In order to use | |
| 2734 // large page memory, the administrator must first assign additional privilege | |
| 2735 // to the user: | |
| 2736 // + select Control Panel -> Administrative Tools -> Local Security Policy | |
| 2737 // + select Local Policies -> User Rights Assignment | |
| 2738 // + double click "Lock pages in memory", add users and/or groups | |
| 2739 // + reboot | |
| 2740 // Note the above steps are needed for administrator as well, as administrators | |
| 2741 // by default do not have the privilege to lock pages in memory. | |
| 2742 // | |
| 2743 // Note about Windows 2003: although the API supports committing large page | |
| 2744 // memory on a page-by-page basis and VirtualAlloc() returns success under this | |
| 2745 // scenario, I found through experiment it only uses large page if the entire | |
| 2746 // memory region is reserved and committed in a single VirtualAlloc() call. | |
| 2747 // This makes Windows large page support more or less like Solaris ISM, in | |
| 2748 // that the entire heap must be committed upfront. This probably will change | |
| 2749 // in the future, if so the code below needs to be revisited. | |
| 2750 | |
| 2751 #ifndef MEM_LARGE_PAGES | |
| 2752 #define MEM_LARGE_PAGES 0x20000000 | |
| 2753 #endif | |
| 2754 | |
| 2755 static HANDLE _hProcess; | |
| 2756 static HANDLE _hToken; | |
| 2757 | |
| 3885 | 2758 // Container for NUMA node list info |
| 2759 class NUMANodeListHolder { | |
| 2760 private: | |
| 2761 int *_numa_used_node_list; // allocated below | |
| 2762 int _numa_used_node_count; | |
| 2763 | |
| 2764 void free_node_list() { | |
| 2765 if (_numa_used_node_list != NULL) { | |
| 6197 | 2766 FREE_C_HEAP_ARRAY(int, _numa_used_node_list, mtInternal); |
| 3885 | 2767 } |
| 2768 } | |
| 2769 | |
| 2770 public: | |
| 2771 NUMANodeListHolder() { | |
| 2772 _numa_used_node_count = 0; | |
| 2773 _numa_used_node_list = NULL; | |
| 2774 // do rest of initialization in build routine (after function pointers are set up) | |
| 2775 } | |
| 2776 | |
| 2777 ~NUMANodeListHolder() { | |
| 2778 free_node_list(); | |
| 2779 } | |
| 2780 | |
| 2781 bool build() { | |
| 2782 DWORD_PTR proc_aff_mask; | |
| 2783 DWORD_PTR sys_aff_mask; | |
| 2784 if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false; | |
| 2785 ULONG highest_node_number; | |
| 2786 if (!os::Kernel32Dll::GetNumaHighestNodeNumber(&highest_node_number)) return false; | |
| 2787 free_node_list(); | |
| 6197 | 2788 _numa_used_node_list = NEW_C_HEAP_ARRAY(int, highest_node_number + 1, mtInternal); |
| 3885 | 2789 for (unsigned int i = 0; i <= highest_node_number; i++) { |
| 2790 ULONGLONG proc_mask_numa_node; | |
| 2791 if (!os::Kernel32Dll::GetNumaNodeProcessorMask(i, &proc_mask_numa_node)) return false; | |
| 2792 if ((proc_aff_mask & proc_mask_numa_node)!=0) { | |
| 2793 _numa_used_node_list[_numa_used_node_count++] = i; | |
| 2794 } | |
| 2795 } | |
| 2796 return (_numa_used_node_count > 1); | |
| 2797 } | |
| 2798 | |
| 2799 int get_count() {return _numa_used_node_count;} | |
| 2800 int get_node_list_entry(int n) { | |
| 2801 // for indexes out of range, returns -1 | |
| 2802 return (n < _numa_used_node_count ? _numa_used_node_list[n] : -1); | |
| 2803 } | |
| 2804 | |
| 2805 } numa_node_list_holder; | |
| 2806 | |
| 2807 | |
| 2808 | |
| 0 | 2809 static size_t _large_page_size = 0; |
| 2810 | |
| 2811 static bool resolve_functions_for_large_page_init() { | |
|
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2812 return os::Kernel32Dll::GetLargePageMinimumAvailable() && |
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|
2813 os::Advapi32Dll::AdvapiAvailable(); |
| 0 | 2814 } |
| 2815 | |
| 2816 static bool request_lock_memory_privilege() { | |
| 2817 _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, | |
| 2818 os::current_process_id()); | |
| 2819 | |
| 2820 LUID luid; | |
| 2821 if (_hProcess != NULL && | |
|
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2822 os::Advapi32Dll::OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) && |
|
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|
2823 os::Advapi32Dll::LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) { |
| 0 | 2824 |
| 2825 TOKEN_PRIVILEGES tp; | |
| 2826 tp.PrivilegeCount = 1; | |
| 2827 tp.Privileges[0].Luid = luid; | |
| 2828 tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
| 2829 | |
| 2830 // AdjustTokenPrivileges() may return TRUE even when it couldn't change the | |
| 2831 // privilege. Check GetLastError() too. See MSDN document. | |
|
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2832 if (os::Advapi32Dll::AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) && |
| 0 | 2833 (GetLastError() == ERROR_SUCCESS)) { |
| 2834 return true; | |
| 2835 } | |
| 2836 } | |
| 2837 | |
| 2838 return false; | |
| 2839 } | |
| 2840 | |
| 2841 static void cleanup_after_large_page_init() { | |
| 2842 if (_hProcess) CloseHandle(_hProcess); | |
| 2843 _hProcess = NULL; | |
| 2844 if (_hToken) CloseHandle(_hToken); | |
| 2845 _hToken = NULL; | |
| 2846 } | |
| 2847 | |
| 3885 | 2848 static bool numa_interleaving_init() { |
| 2849 bool success = false; | |
| 2850 bool use_numa_interleaving_specified = !FLAG_IS_DEFAULT(UseNUMAInterleaving); | |
| 2851 | |
|
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|
2852 // print a warning if UseNUMAInterleaving flag is specified on command line |
|
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|
2853 bool warn_on_failure = use_numa_interleaving_specified; |
| 3885 | 2854 # define WARN(msg) if (warn_on_failure) { warning(msg); } |
| 2855 | |
| 2856 // NUMAInterleaveGranularity cannot be less than vm_allocation_granularity (or _large_page_size if using large pages) | |
| 2857 size_t min_interleave_granularity = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
| 2858 NUMAInterleaveGranularity = align_size_up(NUMAInterleaveGranularity, min_interleave_granularity); | |
| 2859 | |
| 2860 if (os::Kernel32Dll::NumaCallsAvailable()) { | |
| 2861 if (numa_node_list_holder.build()) { | |
| 2862 if (PrintMiscellaneous && Verbose) { | |
|
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2863 tty->print("NUMA UsedNodeCount=%d, namely ", numa_node_list_holder.get_count()); |
| 3885 | 2864 for (int i = 0; i < numa_node_list_holder.get_count(); i++) { |
| 2865 tty->print("%d ", numa_node_list_holder.get_node_list_entry(i)); | |
| 2866 } | |
| 2867 tty->print("\n"); | |
| 2868 } | |
| 2869 success = true; | |
| 2870 } else { | |
| 2871 WARN("Process does not cover multiple NUMA nodes."); | |
| 2872 } | |
| 2873 } else { | |
| 2874 WARN("NUMA Interleaving is not supported by the operating system."); | |
| 2875 } | |
| 2876 if (!success) { | |
| 2877 if (use_numa_interleaving_specified) WARN("...Ignoring UseNUMAInterleaving flag."); | |
| 2878 } | |
| 2879 return success; | |
| 2880 #undef WARN | |
| 2881 } | |
| 2882 | |
| 2883 // this routine is used whenever we need to reserve a contiguous VA range | |
| 2884 // but we need to make separate VirtualAlloc calls for each piece of the range | |
| 2885 // Reasons for doing this: | |
| 2886 // * UseLargePagesIndividualAllocation was set (normally only needed on WS2003 but possible to be set otherwise) | |
| 2887 // * UseNUMAInterleaving requires a separate node for each piece | |
| 2888 static char* allocate_pages_individually(size_t bytes, char* addr, DWORD flags, DWORD prot, | |
| 2889 bool should_inject_error=false) { | |
| 2890 char * p_buf; | |
| 2891 // note: at setup time we guaranteed that NUMAInterleaveGranularity was aligned up to a page size | |
| 2892 size_t page_size = UseLargePages ? _large_page_size : os::vm_allocation_granularity(); | |
| 2893 size_t chunk_size = UseNUMAInterleaving ? NUMAInterleaveGranularity : page_size; | |
| 2894 | |
| 2895 // first reserve enough address space in advance since we want to be | |
| 2896 // able to break a single contiguous virtual address range into multiple | |
| 2897 // large page commits but WS2003 does not allow reserving large page space | |
| 2898 // so we just use 4K pages for reserve, this gives us a legal contiguous | |
| 2899 // address space. then we will deallocate that reservation, and re alloc | |
| 2900 // using large pages | |
| 2901 const size_t size_of_reserve = bytes + chunk_size; | |
| 2902 if (bytes > size_of_reserve) { | |
| 2903 // Overflowed. | |
| 2904 return NULL; | |
| 2905 } | |
| 2906 p_buf = (char *) VirtualAlloc(addr, | |
| 2907 size_of_reserve, // size of Reserve | |
| 2908 MEM_RESERVE, | |
| 2909 PAGE_READWRITE); | |
| 2910 // If reservation failed, return NULL | |
| 2911 if (p_buf == NULL) return NULL; | |
|
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2912 MemTracker::record_virtual_memory_reserve((address)p_buf, size_of_reserve, mtNone, CALLER_PC); |
| 3885 | 2913 os::release_memory(p_buf, bytes + chunk_size); |
| 2914 | |
| 2915 // we still need to round up to a page boundary (in case we are using large pages) | |
| 2916 // but not to a chunk boundary (in case InterleavingGranularity doesn't align with page size) | |
| 2917 // instead we handle this in the bytes_to_rq computation below | |
| 2918 p_buf = (char *) align_size_up((size_t)p_buf, page_size); | |
| 2919 | |
| 2920 // now go through and allocate one chunk at a time until all bytes are | |
| 2921 // allocated | |
| 2922 size_t bytes_remaining = bytes; | |
| 2923 // An overflow of align_size_up() would have been caught above | |
| 2924 // in the calculation of size_of_reserve. | |
| 2925 char * next_alloc_addr = p_buf; | |
| 2926 HANDLE hProc = GetCurrentProcess(); | |
| 2927 | |
| 2928 #ifdef ASSERT | |
| 2929 // Variable for the failure injection | |
| 2930 long ran_num = os::random(); | |
| 2931 size_t fail_after = ran_num % bytes; | |
| 2932 #endif | |
| 2933 | |
| 2934 int count=0; | |
| 2935 while (bytes_remaining) { | |
| 2936 // select bytes_to_rq to get to the next chunk_size boundary | |
| 2937 | |
| 2938 size_t bytes_to_rq = MIN2(bytes_remaining, chunk_size - ((size_t)next_alloc_addr % chunk_size)); | |
| 2939 // Note allocate and commit | |
| 2940 char * p_new; | |
| 2941 | |
| 2942 #ifdef ASSERT | |
| 2943 bool inject_error_now = should_inject_error && (bytes_remaining <= fail_after); | |
| 2944 #else | |
| 2945 const bool inject_error_now = false; | |
| 2946 #endif | |
| 2947 | |
| 2948 if (inject_error_now) { | |
| 2949 p_new = NULL; | |
| 2950 } else { | |
| 2951 if (!UseNUMAInterleaving) { | |
| 2952 p_new = (char *) VirtualAlloc(next_alloc_addr, | |
| 2953 bytes_to_rq, | |
| 2954 flags, | |
| 2955 prot); | |
| 2956 } else { | |
| 2957 // get the next node to use from the used_node_list | |
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2958 assert(numa_node_list_holder.get_count() > 0, "Multiple NUMA nodes expected"); |
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|
2959 DWORD node = numa_node_list_holder.get_node_list_entry(count % numa_node_list_holder.get_count()); |
| 3885 | 2960 p_new = (char *)os::Kernel32Dll::VirtualAllocExNuma(hProc, |
| 2961 next_alloc_addr, | |
| 2962 bytes_to_rq, | |
| 2963 flags, | |
| 2964 prot, | |
| 2965 node); | |
| 2966 } | |
| 2967 } | |
| 2968 | |
| 2969 if (p_new == NULL) { | |
| 2970 // Free any allocated pages | |
| 2971 if (next_alloc_addr > p_buf) { | |
| 2972 // Some memory was committed so release it. | |
| 2973 size_t bytes_to_release = bytes - bytes_remaining; | |
|
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
2974 // NMT has yet to record any individual blocks, so it |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
2975 // need to create a dummy 'reserve' record to match |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
2976 // the release. |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
2977 MemTracker::record_virtual_memory_reserve((address)p_buf, |
|
10986
1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
zgu
parents:
10969
diff
changeset
|
2978 bytes_to_release, mtNone, CALLER_PC); |
| 3885 | 2979 os::release_memory(p_buf, bytes_to_release); |
| 2980 } | |
| 2981 #ifdef ASSERT | |
| 2982 if (should_inject_error) { | |
| 2983 if (TracePageSizes && Verbose) { | |
| 2984 tty->print_cr("Reserving pages individually failed."); | |
| 2985 } | |
| 2986 } | |
| 2987 #endif | |
| 2988 return NULL; | |
| 2989 } | |
|
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
2990 |
| 3885 | 2991 bytes_remaining -= bytes_to_rq; |
| 2992 next_alloc_addr += bytes_to_rq; | |
| 2993 count++; | |
| 2994 } | |
|
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
2995 // Although the memory is allocated individually, it is returned as one. |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
2996 // NMT records it as one block. |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
2997 address pc = CALLER_PC; |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
2998 if ((flags & MEM_COMMIT) != 0) { |
|
10986
1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
zgu
parents:
10969
diff
changeset
|
2999 MemTracker::record_virtual_memory_reserve_and_commit((address)p_buf, bytes, mtNone, pc); |
|
1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
zgu
parents:
10969
diff
changeset
|
3000 } else { |
|
1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
zgu
parents:
10969
diff
changeset
|
3001 MemTracker::record_virtual_memory_reserve((address)p_buf, bytes, mtNone, pc); |
|
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3002 } |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3003 |
| 3885 | 3004 // made it this far, success |
| 3005 return p_buf; | |
| 3006 } | |
| 3007 | |
| 3008 | |
| 3009 | |
|
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3010 void os::large_page_init() { |
|
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3011 if (!UseLargePages) return; |
| 0 | 3012 |
| 3013 // print a warning if any large page related flag is specified on command line | |
| 3014 bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) || | |
| 3015 !FLAG_IS_DEFAULT(LargePageSizeInBytes); | |
| 3016 bool success = false; | |
| 3017 | |
| 3018 # define WARN(msg) if (warn_on_failure) { warning(msg); } | |
| 3019 if (resolve_functions_for_large_page_init()) { | |
| 3020 if (request_lock_memory_privilege()) { | |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3021 size_t s = os::Kernel32Dll::GetLargePageMinimum(); |
| 0 | 3022 if (s) { |
| 3023 #if defined(IA32) || defined(AMD64) | |
| 3024 if (s > 4*M || LargePageSizeInBytes > 4*M) { | |
| 3025 WARN("JVM cannot use large pages bigger than 4mb."); | |
| 3026 } else { | |
| 3027 #endif | |
| 3028 if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) { | |
| 3029 _large_page_size = LargePageSizeInBytes; | |
| 3030 } else { | |
| 3031 _large_page_size = s; | |
| 3032 } | |
| 3033 success = true; | |
| 3034 #if defined(IA32) || defined(AMD64) | |
| 3035 } | |
| 3036 #endif | |
| 3037 } else { | |
| 3038 WARN("Large page is not supported by the processor."); | |
| 3039 } | |
| 3040 } else { | |
| 3041 WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory."); | |
| 3042 } | |
| 3043 } else { | |
| 3044 WARN("Large page is not supported by the operating system."); | |
| 3045 } | |
| 3046 #undef WARN | |
| 3047 | |
| 3048 const size_t default_page_size = (size_t) vm_page_size(); | |
| 3049 if (success && _large_page_size > default_page_size) { | |
| 3050 _page_sizes[0] = _large_page_size; | |
| 3051 _page_sizes[1] = default_page_size; | |
| 3052 _page_sizes[2] = 0; | |
| 3053 } | |
| 3054 | |
| 3055 cleanup_after_large_page_init(); | |
|
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3056 UseLargePages = success; |
| 0 | 3057 } |
| 3058 | |
| 3059 // On win32, one cannot release just a part of reserved memory, it's an | |
| 3060 // all or nothing deal. When we split a reservation, we must break the | |
| 3061 // reservation into two reservations. | |
| 6197 | 3062 void os::pd_split_reserved_memory(char *base, size_t size, size_t split, |
| 0 | 3063 bool realloc) { |
| 3064 if (size > 0) { | |
| 3065 release_memory(base, size); | |
| 3066 if (realloc) { | |
| 3067 reserve_memory(split, base); | |
| 3068 } | |
| 3069 if (size != split) { | |
| 3070 reserve_memory(size - split, base + split); | |
| 3071 } | |
| 3072 } | |
| 3073 } | |
| 3074 | |
|
7433
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3075 // Multiple threads can race in this code but it's not possible to unmap small sections of |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3076 // virtual space to get requested alignment, like posix-like os's. |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3077 // Windows prevents multiple thread from remapping over each other so this loop is thread-safe. |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3078 char* os::reserve_memory_aligned(size_t size, size_t alignment) { |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3079 assert((alignment & (os::vm_allocation_granularity() - 1)) == 0, |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3080 "Alignment must be a multiple of allocation granularity (page size)"); |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3081 assert((size & (alignment -1)) == 0, "size must be 'alignment' aligned"); |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3082 |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3083 size_t extra_size = size + alignment; |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3084 assert(extra_size >= size, "overflow, size is too large to allow alignment"); |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3085 |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3086 char* aligned_base = NULL; |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3087 |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3088 do { |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3089 char* extra_base = os::reserve_memory(extra_size, NULL, alignment); |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3090 if (extra_base == NULL) { |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3091 return NULL; |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3092 } |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3093 // Do manual alignment |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3094 aligned_base = (char*) align_size_up((uintptr_t) extra_base, alignment); |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3095 |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3096 os::release_memory(extra_base, extra_size); |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3097 |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3098 aligned_base = os::reserve_memory(size, aligned_base); |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3099 |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3100 } while (aligned_base == NULL); |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3101 |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3102 return aligned_base; |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3103 } |
|
730cc4ddd550
7173959: Jvm crashed during coherence exabus (tmb) testing
brutisso
parents:
7206
diff
changeset
|
3104 |
| 6197 | 3105 char* os::pd_reserve_memory(size_t bytes, char* addr, size_t alignment_hint) { |
| 0 | 3106 assert((size_t)addr % os::vm_allocation_granularity() == 0, |
| 3107 "reserve alignment"); | |
| 3108 assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size"); | |
| 3885 | 3109 char* res; |
| 3110 // note that if UseLargePages is on, all the areas that require interleaving | |
| 3111 // will go thru reserve_memory_special rather than thru here. | |
| 3112 bool use_individual = (UseNUMAInterleaving && !UseLargePages); | |
| 3113 if (!use_individual) { | |
| 3114 res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE); | |
| 3115 } else { | |
| 3116 elapsedTimer reserveTimer; | |
| 3117 if( Verbose && PrintMiscellaneous ) reserveTimer.start(); | |
| 3118 // in numa interleaving, we have to allocate pages individually | |
| 3119 // (well really chunks of NUMAInterleaveGranularity size) | |
| 3120 res = allocate_pages_individually(bytes, addr, MEM_RESERVE, PAGE_READWRITE); | |
| 3121 if (res == NULL) { | |
| 3122 warning("NUMA page allocation failed"); | |
| 3123 } | |
| 3124 if( Verbose && PrintMiscellaneous ) { | |
| 3125 reserveTimer.stop(); | |
|
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7458
diff
changeset
|
3126 tty->print_cr("reserve_memory of %Ix bytes took " JLONG_FORMAT " ms (" JLONG_FORMAT " ticks)", bytes, |
| 3885 | 3127 reserveTimer.milliseconds(), reserveTimer.ticks()); |
| 3128 } | |
| 3129 } | |
| 0 | 3130 assert(res == NULL || addr == NULL || addr == res, |
| 3131 "Unexpected address from reserve."); | |
| 3885 | 3132 |
| 0 | 3133 return res; |
| 3134 } | |
| 3135 | |
| 3136 // Reserve memory at an arbitrary address, only if that area is | |
| 3137 // available (and not reserved for something else). | |
| 6197 | 3138 char* os::pd_attempt_reserve_memory_at(size_t bytes, char* requested_addr) { |
| 0 | 3139 // Windows os::reserve_memory() fails of the requested address range is |
| 3140 // not avilable. | |
| 3141 return reserve_memory(bytes, requested_addr); | |
| 3142 } | |
| 3143 | |
| 3144 size_t os::large_page_size() { | |
| 3145 return _large_page_size; | |
| 3146 } | |
| 3147 | |
| 3148 bool os::can_commit_large_page_memory() { | |
| 3149 // Windows only uses large page memory when the entire region is reserved | |
| 3150 // and committed in a single VirtualAlloc() call. This may change in the | |
| 3151 // future, but with Windows 2003 it's not possible to commit on demand. | |
| 3152 return false; | |
| 3153 } | |
| 3154 | |
|
79
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3155 bool os::can_execute_large_page_memory() { |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3156 return true; |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3157 } |
|
82db0859acbe
6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents:
62
diff
changeset
|
3158 |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3159 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
|
3160 assert(UseLargePages, "only for large pages"); |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3161 |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3162 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
|
3163 return NULL; // Fallback to small pages. |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
3164 } |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3165 |
| 717 | 3166 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
| 3885 | 3167 const DWORD flags = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 3168 | |
| 3169 // with large pages, there are two cases where we need to use Individual Allocation | |
| 3170 // 1) the UseLargePagesIndividualAllocation flag is set (set by default on WS2003) | |
| 3171 // 2) NUMA Interleaving is enabled, in which case we use a different node for each page | |
| 3172 if (UseLargePagesIndividualAllocation || UseNUMAInterleaving) { | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3173 if (TracePageSizes && Verbose) { |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3174 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
|
3175 } |
| 3885 | 3176 char * p_buf = allocate_pages_individually(bytes, addr, flags, prot, LargePagesIndividualAllocationInjectError); |
| 3177 if (p_buf == NULL) { | |
| 3178 // give an appropriate warning message | |
| 3179 if (UseNUMAInterleaving) { | |
| 3180 warning("NUMA large page allocation failed, UseLargePages flag ignored"); | |
| 3181 } | |
| 3182 if (UseLargePagesIndividualAllocation) { | |
| 3183 warning("Individually allocated large pages failed, " | |
| 3184 "use -XX:-UseLargePagesIndividualAllocation to turn off"); | |
| 3185 } | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3186 return NULL; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3187 } |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3188 |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3189 return p_buf; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3190 |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3191 } else { |
|
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3192 if (TracePageSizes && Verbose) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
3193 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
|
3194 } |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3195 // 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
|
3196 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
|
3197 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
|
3198 if (res != NULL) { |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3199 address pc = CALLER_PC; |
|
10986
1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
zgu
parents:
10969
diff
changeset
|
3200 MemTracker::record_virtual_memory_reserve_and_commit((address)res, bytes, mtNone, pc); |
|
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3201 } |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3202 |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3203 return res; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3204 } |
| 0 | 3205 } |
| 3206 | |
| 3207 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
|
3208 assert(base != NULL, "Sanity check"); |
| 0 | 3209 return release_memory(base, bytes); |
| 3210 } | |
| 3211 | |
| 3212 void os::print_statistics() { | |
| 3213 } | |
| 3214 | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3215 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:
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diff
changeset
|
3216 int err = os::get_last_error(); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
10405
diff
changeset
|
3217 char buf[256]; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3218 size_t buf_len = os::lasterror(buf, sizeof(buf)); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
10405
diff
changeset
|
3219 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
|
3220 ", %d) failed; error='%s' (DOS error/errno=%d)", addr, bytes, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
10405
diff
changeset
|
3221 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
|
3222 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3223 |
| 6197 | 3224 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) { |
| 0 | 3225 if (bytes == 0) { |
| 3226 // Don't bother the OS with noops. | |
| 3227 return true; | |
| 3228 } | |
| 3229 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
| 3230 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
| 3231 // Don't attempt to print anything if the OS call fails. We're | |
| 3232 // probably low on resources, so the print itself may cause crashes. | |
| 3885 | 3233 |
| 3234 // unless we have NUMAInterleaving enabled, the range of a commit | |
| 3235 // is always within a reserve covered by a single VirtualAlloc | |
| 3236 // in that case we can just do a single commit for the requested size | |
| 3237 if (!UseNUMAInterleaving) { | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3238 if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
10405
diff
changeset
|
3239 NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);) |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
10405
diff
changeset
|
3240 return false; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3241 } |
| 3885 | 3242 if (exec) { |
| 3243 DWORD oldprot; | |
| 3244 // 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
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parents:
10405
diff
changeset
|
3245 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
|
3246 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
|
3247 return false; |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3248 } |
| 3885 | 3249 } |
| 3250 return true; | |
| 656 | 3251 } else { |
| 3885 | 3252 |
| 3253 // when NUMAInterleaving is enabled, the commit might cover a range that | |
| 3254 // came from multiple VirtualAlloc reserves (using allocate_pages_individually). | |
| 3255 // VirtualQuery can help us determine that. The RegionSize that VirtualQuery | |
| 3256 // returns represents the number of bytes that can be committed in one step. | |
| 3257 size_t bytes_remaining = bytes; | |
| 3258 char * next_alloc_addr = addr; | |
| 3259 while (bytes_remaining > 0) { | |
| 3260 MEMORY_BASIC_INFORMATION alloc_info; | |
| 3261 VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info)); | |
| 3262 size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize); | |
|
10969
a837fa3d3f86
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parents:
10405
diff
changeset
|
3263 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
|
3264 PAGE_READWRITE) == NULL) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3265 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
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parents:
10405
diff
changeset
|
3266 exec);) |
| 3885 | 3267 return false; |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3268 } |
| 3885 | 3269 if (exec) { |
| 3270 DWORD oldprot; | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3271 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
|
3272 PAGE_EXECUTE_READWRITE, &oldprot)) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3273 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
|
3274 exec);) |
| 3885 | 3275 return false; |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3276 } |
| 3885 | 3277 } |
| 3278 bytes_remaining -= bytes_to_rq; | |
| 3279 next_alloc_addr += bytes_to_rq; | |
| 3280 } | |
| 3281 } | |
| 3282 // if we made it this far, return true | |
| 3283 return true; | |
| 0 | 3284 } |
| 3285 | |
| 6197 | 3286 bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint, |
| 656 | 3287 bool exec) { |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3288 // 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
|
3289 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
|
3290 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3291 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3292 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
|
3293 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3294 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
|
3295 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
|
3296 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
|
3297 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
|
3298 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3299 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3300 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3301 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
|
3302 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
|
3303 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3304 // 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
|
3305 pd_commit_memory_or_exit(addr, size, exec, mesg); |
| 0 | 3306 } |
| 3307 | |
| 6197 | 3308 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
| 0 | 3309 if (bytes == 0) { |
| 3310 // Don't bother the OS with noops. | |
| 3311 return true; | |
| 3312 } | |
| 3313 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
| 3314 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
| 6197 | 3315 return (VirtualFree(addr, bytes, MEM_DECOMMIT) != 0); |
| 3316 } | |
| 3317 | |
| 3318 bool os::pd_release_memory(char* addr, size_t bytes) { | |
| 0 | 3319 return VirtualFree(addr, 0, MEM_RELEASE) != 0; |
| 3320 } | |
| 3321 | |
| 6197 | 3322 bool os::pd_create_stack_guard_pages(char* addr, size_t size) { |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3323 return os::commit_memory(addr, size, !ExecMem); |
|
1320
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3324 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3325 |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3326 bool os::remove_stack_guard_pages(char* addr, size_t size) { |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3327 return os::uncommit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3328 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3329 |
|
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3330 // Set protections specified |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3331 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3332 bool is_committed) { |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3333 unsigned int p = 0; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3334 switch (prot) { |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3335 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3336 case MEM_PROT_READ: p = PAGE_READONLY; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3337 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3338 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3339 default: |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3340 ShouldNotReachHere(); |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3341 } |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3342 |
| 0 | 3343 DWORD old_status; |
|
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3344 |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3345 // Strange enough, but on Win32 one can change protection only for committed |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3346 // memory, not a big deal anyway, as bytes less or equal than 64K |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3347 if (!is_committed) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3348 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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parents:
10405
diff
changeset
|
3349 "cannot commit protection page"); |
|
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3350 } |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3351 // One cannot use os::guard_memory() here, as on Win32 guard page |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3352 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3353 // |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3354 // Pages in the region become guard pages. Any attempt to access a guard page |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3355 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3356 // the guard page status. Guard pages thus act as a one-time access alarm. |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3357 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
| 0 | 3358 } |
| 3359 | |
| 3360 bool os::guard_memory(char* addr, size_t bytes) { | |
| 3361 DWORD old_status; | |
|
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
467
diff
changeset
|
3362 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
| 0 | 3363 } |
| 3364 | |
| 3365 bool os::unguard_memory(char* addr, size_t bytes) { | |
| 3366 DWORD old_status; | |
|
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
467
diff
changeset
|
3367 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
| 0 | 3368 } |
| 3369 | |
| 6197 | 3370 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } |
| 3371 void os::pd_free_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
| 0 | 3372 void os::numa_make_global(char *addr, size_t bytes) { } |
| 141 | 3373 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
| 0 | 3374 bool os::numa_topology_changed() { return false; } |
|
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3375 size_t os::numa_get_groups_num() { return MAX2(numa_node_list_holder.get_count(), 1); } |
| 0 | 3376 int os::numa_get_group_id() { return 0; } |
| 3377 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
|
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|
3378 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
|
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|
3379 // Provide an answer for UMA systems |
|
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|
3380 ids[0] = 0; |
|
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|
3381 return 1; |
|
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|
3382 } else { |
|
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|
3383 // check for size bigger than actual groups_num |
|
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|
3384 size = MIN2(size, numa_get_groups_num()); |
|
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|
3385 for (int i = 0; i < (int)size; i++) { |
|
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|
3386 ids[i] = numa_node_list_holder.get_node_list_entry(i); |
|
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|
3387 } |
|
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|
3388 return size; |
|
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|
3389 } |
| 0 | 3390 } |
| 3391 | |
| 3392 bool os::get_page_info(char *start, page_info* info) { | |
| 3393 return false; | |
| 3394 } | |
| 3395 | |
| 3396 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 3397 return end; | |
| 3398 } | |
| 3399 | |
| 3400 char* os::non_memory_address_word() { | |
| 3401 // Must never look like an address returned by reserve_memory, | |
| 3402 // even in its subfields (as defined by the CPU immediate fields, | |
| 3403 // if the CPU splits constants across multiple instructions). | |
| 3404 return (char*)-1; | |
| 3405 } | |
| 3406 | |
| 3407 #define MAX_ERROR_COUNT 100 | |
| 3408 #define SYS_THREAD_ERROR 0xffffffffUL | |
| 3409 | |
| 3410 void os::pd_start_thread(Thread* thread) { | |
| 3411 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
| 3412 // Returns previous suspend state: | |
| 3413 // 0: Thread was not suspended | |
| 3414 // 1: Thread is running now | |
| 3415 // >1: Thread is still suspended. | |
| 3416 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
| 3417 } | |
| 3418 | |
|
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|
3419 class HighResolutionInterval : public CHeapObj<mtThread> { |
| 0 | 3420 // The default timer resolution seems to be 10 milliseconds. |
| 3421 // (Where is this written down?) | |
| 3422 // If someone wants to sleep for only a fraction of the default, | |
| 3423 // then we set the timer resolution down to 1 millisecond for | |
| 3424 // the duration of their interval. | |
| 3425 // We carefully set the resolution back, since otherwise we | |
| 3426 // seem to incur an overhead (3%?) that we don't need. | |
| 3427 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
| 3428 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
| 3429 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
| 3430 // timeBeginPeriod() if the relative error exceeded some threshold. | |
| 3431 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
| 3432 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
| 3433 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
| 3434 // resolution timers running. | |
| 3435 private: | |
| 3436 jlong resolution; | |
| 3437 public: | |
| 3438 HighResolutionInterval(jlong ms) { | |
| 3439 resolution = ms % 10L; | |
| 3440 if (resolution != 0) { | |
| 3441 MMRESULT result = timeBeginPeriod(1L); | |
| 3442 } | |
| 3443 } | |
| 3444 ~HighResolutionInterval() { | |
| 3445 if (resolution != 0) { | |
| 3446 MMRESULT result = timeEndPeriod(1L); | |
| 3447 } | |
| 3448 resolution = 0L; | |
| 3449 } | |
| 3450 }; | |
| 3451 | |
| 3452 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
| 3453 jlong limit = (jlong) MAXDWORD; | |
| 3454 | |
| 3455 while(ms > limit) { | |
| 3456 int res; | |
| 3457 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
| 3458 return res; | |
| 3459 ms -= limit; | |
| 3460 } | |
| 3461 | |
| 3462 assert(thread == Thread::current(), "thread consistency check"); | |
| 3463 OSThread* osthread = thread->osthread(); | |
| 3464 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
| 3465 int result; | |
| 3466 if (interruptable) { | |
| 3467 assert(thread->is_Java_thread(), "must be java thread"); | |
| 3468 JavaThread *jt = (JavaThread *) thread; | |
| 3469 ThreadBlockInVM tbivm(jt); | |
| 3470 | |
| 3471 jt->set_suspend_equivalent(); | |
| 3472 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3473 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3474 | |
| 3475 HANDLE events[1]; | |
| 3476 events[0] = osthread->interrupt_event(); | |
| 3477 HighResolutionInterval *phri=NULL; | |
| 3478 if(!ForceTimeHighResolution) | |
| 3479 phri = new HighResolutionInterval( ms ); | |
| 3480 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
| 3481 result = OS_TIMEOUT; | |
| 3482 } else { | |
| 3483 ResetEvent(osthread->interrupt_event()); | |
| 3484 osthread->set_interrupted(false); | |
| 3485 result = OS_INTRPT; | |
| 3486 } | |
| 3487 delete phri; //if it is NULL, harmless | |
| 3488 | |
| 3489 // were we externally suspended while we were waiting? | |
| 3490 jt->check_and_wait_while_suspended(); | |
| 3491 } else { | |
| 3492 assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3493 Sleep((long) ms); | |
| 3494 result = OS_TIMEOUT; | |
| 3495 } | |
| 3496 return result; | |
| 3497 } | |
| 3498 | |
| 3499 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3500 void os::infinite_sleep() { | |
| 3501 while (true) { // sleep forever ... | |
| 3502 Sleep(100000); // ... 100 seconds at a time | |
| 3503 } | |
| 3504 } | |
| 3505 | |
| 3506 typedef BOOL (WINAPI * STTSignature)(void) ; | |
| 3507 | |
| 3508 os::YieldResult os::NakedYield() { | |
| 3509 // Use either SwitchToThread() or Sleep(0) | |
| 3510 // Consider passing back the return value from SwitchToThread(). | |
|
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|
3511 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
|
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|
3512 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
| 0 | 3513 } else { |
|
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|
3514 Sleep(0); |
| 0 | 3515 } |
| 3516 return os::YIELD_UNKNOWN ; | |
| 3517 } | |
| 3518 | |
| 3519 void os::yield() { os::NakedYield(); } | |
| 3520 | |
| 3521 void os::yield_all(int attempts) { | |
| 3522 // Yields to all threads, including threads with lower priorities | |
| 3523 Sleep(1); | |
| 3524 } | |
| 3525 | |
| 3526 // Win32 only gives you access to seven real priorities at a time, | |
| 3527 // so we compress Java's ten down to seven. It would be better | |
| 3528 // if we dynamically adjusted relative priorities. | |
| 3529 | |
|
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|
3530 int os::java_to_os_priority[CriticalPriority + 1] = { |
| 0 | 3531 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3532 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3533 THREAD_PRIORITY_LOWEST, // 2 | |
| 3534 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3535 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3536 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3537 THREAD_PRIORITY_NORMAL, // 6 | |
| 3538 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3539 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
| 3540 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
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|
3541 THREAD_PRIORITY_HIGHEST, // 10 MaxPriority |
|
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|
3542 THREAD_PRIORITY_HIGHEST // 11 CriticalPriority |
| 0 | 3543 }; |
| 3544 | |
|
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|
3545 int prio_policy1[CriticalPriority + 1] = { |
| 0 | 3546 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3547 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3548 THREAD_PRIORITY_LOWEST, // 2 | |
| 3549 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3550 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3551 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3552 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
| 3553 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3554 THREAD_PRIORITY_HIGHEST, // 8 | |
| 3555 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
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|
3556 THREAD_PRIORITY_TIME_CRITICAL, // 10 MaxPriority |
|
de268c8a8075
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|
3557 THREAD_PRIORITY_TIME_CRITICAL // 11 CriticalPriority |
| 0 | 3558 }; |
| 3559 | |
| 3560 static int prio_init() { | |
| 3561 // If ThreadPriorityPolicy is 1, switch tables | |
| 3562 if (ThreadPriorityPolicy == 1) { | |
| 3563 int i; | |
|
4854
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|
3564 for (i = 0; i < CriticalPriority + 1; i++) { |
| 0 | 3565 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3566 } | |
| 3567 } | |
|
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diff
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|
3568 if (UseCriticalJavaThreadPriority) { |
|
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diff
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|
3569 os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority] ; |
|
de268c8a8075
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diff
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|
3570 } |
| 0 | 3571 return 0; |
| 3572 } | |
| 3573 | |
| 3574 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
| 3575 if (!UseThreadPriorities) return OS_OK; | |
| 3576 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
| 3577 return ret ? OS_OK : OS_ERR; | |
| 3578 } | |
| 3579 | |
| 3580 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
| 3581 if ( !UseThreadPriorities ) { | |
| 3582 *priority_ptr = java_to_os_priority[NormPriority]; | |
| 3583 return OS_OK; | |
| 3584 } | |
| 3585 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
| 3586 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
| 3587 assert(false, "GetThreadPriority failed"); | |
| 3588 return OS_ERR; | |
| 3589 } | |
| 3590 *priority_ptr = os_prio; | |
| 3591 return OS_OK; | |
| 3592 } | |
| 3593 | |
| 3594 | |
| 3595 // Hint to the underlying OS that a task switch would not be good. | |
| 3596 // Void return because it's a hint and can fail. | |
| 3597 void os::hint_no_preempt() {} | |
| 3598 | |
| 3599 void os::interrupt(Thread* thread) { | |
| 3600 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3601 "possibility of dangling Thread pointer"); | |
| 3602 | |
| 3603 OSThread* osthread = thread->osthread(); | |
| 3604 osthread->set_interrupted(true); | |
| 3605 // More than one thread can get here with the same value of osthread, | |
| 3606 // resulting in multiple notifications. We do, however, want the store | |
| 3607 // to interrupted() to be visible to other threads before we post | |
| 3608 // the interrupt event. | |
| 3609 OrderAccess::release(); | |
| 3610 SetEvent(osthread->interrupt_event()); | |
| 3611 // For JSR166: unpark after setting status | |
| 3612 if (thread->is_Java_thread()) | |
| 3613 ((JavaThread*)thread)->parker()->unpark(); | |
| 3614 | |
| 3615 ParkEvent * ev = thread->_ParkEvent ; | |
| 3616 if (ev != NULL) ev->unpark() ; | |
| 3617 | |
| 3618 } | |
| 3619 | |
| 3620 | |
| 3621 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 3622 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3623 "possibility of dangling Thread pointer"); | |
| 3624 | |
| 3625 OSThread* osthread = thread->osthread(); | |
|
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|
3626 bool interrupted = osthread->interrupted(); |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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diff
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|
3627 // There is no synchronization between the setting of the interrupt |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
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2306
diff
changeset
|
3628 // 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
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2306
diff
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|
3629 // we only clear the interrupt state, and reset the interrupt event, |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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diff
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|
3630 // if we are going to report that we were indeed interrupted - else |
|
083f13976b51
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diff
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|
3631 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
|
083f13976b51
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diff
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|
3632 // depending on the timing |
|
083f13976b51
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diff
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|
3633 if (interrupted && clear_interrupted) { |
| 0 | 3634 osthread->set_interrupted(false); |
| 3635 ResetEvent(osthread->interrupt_event()); | |
| 3636 } // Otherwise leave the interrupted state alone | |
| 3637 | |
| 3638 return interrupted; | |
| 3639 } | |
| 3640 | |
| 3641 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
| 3642 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 3643 CONTEXT context; | |
| 3644 context.ContextFlags = CONTEXT_CONTROL; | |
| 3645 HANDLE handle = thread->osthread()->thread_handle(); | |
| 3646 #ifdef _M_IA64 | |
| 3647 assert(0, "Fix get_thread_pc"); | |
| 3648 return ExtendedPC(NULL); | |
| 3649 #else | |
| 3650 if (GetThreadContext(handle, &context)) { | |
| 3651 #ifdef _M_AMD64 | |
| 3652 return ExtendedPC((address) context.Rip); | |
| 3653 #else | |
| 3654 return ExtendedPC((address) context.Eip); | |
| 3655 #endif | |
| 3656 } else { | |
| 3657 return ExtendedPC(NULL); | |
| 3658 } | |
| 3659 #endif | |
| 3660 } | |
| 3661 | |
| 3662 // GetCurrentThreadId() returns DWORD | |
| 3663 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
| 3664 | |
| 3665 static int _initial_pid = 0; | |
| 3666 | |
| 3667 int os::current_process_id() | |
| 3668 { | |
| 3669 return (_initial_pid ? _initial_pid : _getpid()); | |
| 3670 } | |
| 3671 | |
| 3672 int os::win32::_vm_page_size = 0; | |
| 3673 int os::win32::_vm_allocation_granularity = 0; | |
| 3674 int os::win32::_processor_type = 0; | |
| 3675 // Processor level is not available on non-NT systems, use vm_version instead | |
| 3676 int os::win32::_processor_level = 0; | |
| 3677 julong os::win32::_physical_memory = 0; | |
| 3678 size_t os::win32::_default_stack_size = 0; | |
| 3679 | |
| 3680 intx os::win32::_os_thread_limit = 0; | |
| 3681 volatile intx os::win32::_os_thread_count = 0; | |
| 3682 | |
| 3683 bool os::win32::_is_nt = false; | |
|
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|
3684 bool os::win32::_is_windows_2003 = false; |
|
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|
3685 bool os::win32::_is_windows_server = false; |
| 0 | 3686 |
| 3687 void os::win32::initialize_system_info() { | |
| 3688 SYSTEM_INFO si; | |
| 3689 GetSystemInfo(&si); | |
| 3690 _vm_page_size = si.dwPageSize; | |
| 3691 _vm_allocation_granularity = si.dwAllocationGranularity; | |
| 3692 _processor_type = si.dwProcessorType; | |
| 3693 _processor_level = si.wProcessorLevel; | |
|
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|
3694 set_processor_count(si.dwNumberOfProcessors); |
| 0 | 3695 |
|
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|
3696 MEMORYSTATUSEX ms; |
|
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|
3697 ms.dwLength = sizeof(ms); |
|
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|
3698 |
| 0 | 3699 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
| 3700 // dwMemoryLoad (% of memory in use) | |
|
877
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|
3701 GlobalMemoryStatusEx(&ms); |
|
8c79517a9300
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|
3702 _physical_memory = ms.ullTotalPhys; |
| 0 | 3703 |
|
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diff
changeset
|
3704 OSVERSIONINFOEX oi; |
|
63d374c54045
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diff
changeset
|
3705 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
|
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2130
diff
changeset
|
3706 GetVersionEx((OSVERSIONINFO*)&oi); |
| 0 | 3707 switch(oi.dwPlatformId) { |
| 3708 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
|
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|
3709 case VER_PLATFORM_WIN32_NT: |
|
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3710 _is_nt = true; |
|
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|
3711 { |
|
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|
3712 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
|
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3713 if (os_vers == 5002) { |
|
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3714 _is_windows_2003 = true; |
|
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|
3715 } |
|
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
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2130
diff
changeset
|
3716 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
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2130
diff
changeset
|
3717 oi.wProductType == VER_NT_SERVER) { |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
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diff
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|
3718 _is_windows_server = true; |
|
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|
3719 } |
|
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|
3720 } |
|
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|
3721 break; |
| 0 | 3722 default: fatal("Unknown platform"); |
| 3723 } | |
| 3724 | |
| 3725 _default_stack_size = os::current_stack_size(); | |
| 3726 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
| 3727 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
| 3728 "stack size not a multiple of page size"); | |
| 3729 | |
| 3730 initialize_performance_counter(); | |
| 3731 | |
| 3732 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
| 3733 // known to deadlock the system, if the VM issues to thread operations with | |
| 3734 // a too high frequency, e.g., such as changing the priorities. | |
| 3735 // The 6000 seems to work well - no deadlocks has been notices on the test | |
| 3736 // programs that we have seen experience this problem. | |
| 3737 if (!os::win32::is_nt()) { | |
| 3738 StarvationMonitorInterval = 6000; | |
| 3739 } | |
| 3740 } | |
| 3741 | |
| 3742 | |
|
3833
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|
3743 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
|
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|
3744 char path[MAX_PATH]; |
|
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|
3745 DWORD size; |
|
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|
3746 DWORD pathLen = (DWORD)sizeof(path); |
|
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|
3747 HINSTANCE result = NULL; |
|
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|
3748 |
|
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|
3749 // only allow library name without path component |
|
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|
3750 assert(strchr(name, '\\') == NULL, "path not allowed"); |
|
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|
3751 assert(strchr(name, ':') == NULL, "path not allowed"); |
|
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|
3752 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
|
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|
3753 jio_snprintf(ebuf, ebuflen, |
|
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|
3754 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
|
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|
3755 return NULL; |
|
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|
3756 } |
|
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diff
changeset
|
3757 |
|
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diff
changeset
|
3758 // search system directory |
|
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diff
changeset
|
3759 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
|
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parents:
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diff
changeset
|
3760 strcat(path, "\\"); |
|
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diff
changeset
|
3761 strcat(path, name); |
|
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diff
changeset
|
3762 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
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diff
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|
3763 return result; |
|
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diff
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|
3764 } |
|
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diff
changeset
|
3765 } |
|
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diff
changeset
|
3766 |
|
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diff
changeset
|
3767 // try Windows directory |
|
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diff
changeset
|
3768 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
|
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parents:
3800
diff
changeset
|
3769 strcat(path, "\\"); |
|
b1cbb0907b36
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parents:
3800
diff
changeset
|
3770 strcat(path, name); |
|
b1cbb0907b36
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parents:
3800
diff
changeset
|
3771 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
b1cbb0907b36
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zgu
parents:
3800
diff
changeset
|
3772 return result; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3773 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3774 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3775 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
3776 jio_snprintf(ebuf, ebuflen, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
3777 "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
|
3778 return NULL; |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3779 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
3780 |
| 0 | 3781 void os::win32::setmode_streams() { |
| 3782 _setmode(_fileno(stdin), _O_BINARY); | |
| 3783 _setmode(_fileno(stdout), _O_BINARY); | |
| 3784 _setmode(_fileno(stderr), _O_BINARY); | |
| 3785 } | |
| 3786 | |
| 3787 | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3788 bool os::is_debugger_attached() { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3789 return IsDebuggerPresent() ? true : false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3790 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3791 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3792 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3793 void os::wait_for_keypress_at_exit(void) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3794 if (PauseAtExit) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3795 fprintf(stderr, "Press any key to continue...\n"); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3796 fgetc(stdin); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3797 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3798 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3799 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3800 |
| 0 | 3801 int os::message_box(const char* title, const char* message) { |
| 3802 int result = MessageBox(NULL, message, title, | |
| 3803 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
| 3804 return result == IDYES; | |
| 3805 } | |
| 3806 | |
| 3807 int os::allocate_thread_local_storage() { | |
| 3808 return TlsAlloc(); | |
| 3809 } | |
| 3810 | |
| 3811 | |
| 3812 void os::free_thread_local_storage(int index) { | |
| 3813 TlsFree(index); | |
| 3814 } | |
| 3815 | |
| 3816 | |
| 3817 void os::thread_local_storage_at_put(int index, void* value) { | |
| 3818 TlsSetValue(index, value); | |
| 3819 assert(thread_local_storage_at(index) == value, "Just checking"); | |
| 3820 } | |
| 3821 | |
| 3822 | |
| 3823 void* os::thread_local_storage_at(int index) { | |
| 3824 return TlsGetValue(index); | |
| 3825 } | |
| 3826 | |
| 3827 | |
| 3828 #ifndef PRODUCT | |
| 3829 #ifndef _WIN64 | |
| 3830 // Helpers to check whether NX protection is enabled | |
| 3831 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
| 3832 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 3833 pex->ExceptionRecord->NumberParameters > 0 && | |
| 3834 pex->ExceptionRecord->ExceptionInformation[0] == | |
| 3835 EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 3836 return EXCEPTION_EXECUTE_HANDLER; | |
| 3837 } | |
| 3838 return EXCEPTION_CONTINUE_SEARCH; | |
| 3839 } | |
| 3840 | |
| 3841 void nx_check_protection() { | |
| 3842 // If NX is enabled we'll get an exception calling into code on the stack | |
| 3843 char code[] = { (char)0xC3 }; // ret | |
| 3844 void *code_ptr = (void *)code; | |
| 3845 __try { | |
| 3846 __asm call code_ptr | |
| 3847 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
| 3848 tty->print_raw_cr("NX protection detected."); | |
| 3849 } | |
| 3850 } | |
| 3851 #endif // _WIN64 | |
| 3852 #endif // PRODUCT | |
| 3853 | |
| 3854 // this is called _before_ the global arguments have been parsed | |
| 3855 void os::init(void) { | |
| 3856 _initial_pid = _getpid(); | |
| 3857 | |
| 3858 init_random(1234567); | |
| 3859 | |
| 3860 win32::initialize_system_info(); | |
| 3861 win32::setmode_streams(); | |
| 3862 init_page_sizes((size_t) win32::vm_page_size()); | |
| 3863 | |
| 3864 // For better scalability on MP systems (must be called after initialize_system_info) | |
| 3865 #ifndef PRODUCT | |
| 3866 if (is_MP()) { | |
| 3867 NoYieldsInMicrolock = true; | |
| 3868 } | |
| 3869 #endif | |
|
389
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356
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|
3870 // 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
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356
diff
changeset
|
3871 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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356
diff
changeset
|
3872 os::win32::is_windows_2003()); |
|
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jmasa
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diff
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|
3873 |
| 0 | 3874 // Initialize main_process and main_thread |
| 3875 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
|
389
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diff
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|
3876 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
| 0 | 3877 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
| 3878 fatal("DuplicateHandle failed\n"); | |
| 3879 } | |
| 3880 main_thread_id = (int) GetCurrentThreadId(); | |
| 3881 } | |
| 3882 | |
| 3883 // To install functions for atexit processing | |
| 3884 extern "C" { | |
| 3885 static void perfMemory_exit_helper() { | |
| 3886 perfMemory_exit(); | |
| 3887 } | |
| 3888 } | |
| 3889 | |
| 8872 | 3890 static jint initSock(); |
| 3891 | |
| 0 | 3892 // this is called _after_ the global arguments have been parsed |
| 3893 jint os::init_2(void) { | |
| 3894 // Allocate a single page and mark it as readable for safepoint polling | |
| 3895 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
| 3896 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
| 3897 | |
| 3898 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
| 3899 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
| 3900 | |
| 3901 os::set_polling_page( polling_page ); | |
| 3902 | |
| 3903 #ifndef PRODUCT | |
| 3904 if( Verbose && PrintMiscellaneous ) | |
| 3905 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 3906 #endif | |
| 3907 | |
| 3908 if (!UseMembar) { | |
| 656 | 3909 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
| 0 | 3910 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
| 3911 | |
| 656 | 3912 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
| 0 | 3913 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
| 3914 | |
| 3915 os::set_memory_serialize_page( mem_serialize_page ); | |
| 3916 | |
| 3917 #ifndef PRODUCT | |
| 3918 if(Verbose && PrintMiscellaneous) | |
| 3919 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 3920 #endif | |
| 3885 | 3921 } |
| 0 | 3922 |
| 3923 // Setup Windows Exceptions | |
| 3924 | |
| 3925 // for debugging float code generation bugs | |
| 3926 if (ForceFloatExceptions) { | |
| 3927 #ifndef _WIN64 | |
| 3928 static long fp_control_word = 0; | |
| 3929 __asm { fstcw fp_control_word } | |
| 3930 // see Intel PPro Manual, Vol. 2, p 7-16 | |
| 3931 const long precision = 0x20; | |
| 3932 const long underflow = 0x10; | |
| 3933 const long overflow = 0x08; | |
| 3934 const long zero_div = 0x04; | |
| 3935 const long denorm = 0x02; | |
| 3936 const long invalid = 0x01; | |
| 3937 fp_control_word |= invalid; | |
| 3938 __asm { fldcw fp_control_word } | |
| 3939 #endif | |
| 3940 } | |
| 3941 | |
| 3942 // If stack_commit_size is 0, windows will reserve the default size, | |
| 3943 // but only commit a small portion of it. | |
| 3944 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
| 3945 size_t default_reserve_size = os::win32::default_stack_size(); | |
| 3946 size_t actual_reserve_size = stack_commit_size; | |
| 3947 if (stack_commit_size < default_reserve_size) { | |
| 3948 // If stack_commit_size == 0, we want this too | |
| 3949 actual_reserve_size = default_reserve_size; | |
| 3950 } | |
| 3951 | |
|
1867
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coleenp
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1865
diff
changeset
|
3952 // Check minimum allowable stack size for thread creation and to initialize |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1865
diff
changeset
|
3953 // the java system classes, including StackOverflowError - depends on page |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1865
diff
changeset
|
3954 // size. Add a page for compiler2 recursion in main thread. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1865
diff
changeset
|
3955 // 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
|
3956 // class initialization depending on 32 or 64 bit VM. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3957 size_t min_stack_allowed = |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3958 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3959 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3960 if (actual_reserve_size < min_stack_allowed) { |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3961 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
|
3962 "Specify at least %dk", |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3963 min_stack_allowed / K); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3964 return JNI_ERR; |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3965 } |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3966 |
| 0 | 3967 JavaThread::set_stack_size_at_create(stack_commit_size); |
| 3968 | |
| 3969 // Calculate theoretical max. size of Threads to guard gainst artifical | |
| 3970 // out-of-memory situations, where all available address-space has been | |
| 3971 // reserved by thread stacks. | |
| 3972 assert(actual_reserve_size != 0, "Must have a stack"); | |
| 3973 | |
| 3974 // Calculate the thread limit when we should start doing Virtual Memory | |
| 3975 // banging. Currently when the threads will have used all but 200Mb of space. | |
| 3976 // | |
| 3977 // TODO: consider performing a similar calculation for commit size instead | |
| 3978 // as reserve size, since on a 64-bit platform we'll run into that more | |
| 3979 // often than running out of virtual memory space. We can use the | |
| 3980 // 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
|
3981 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
| 0 | 3982 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
| 3983 | |
| 3984 // at exit methods are called in the reverse order of their registration. | |
| 3985 // there is no limit to the number of functions registered. atexit does | |
| 3986 // not set errno. | |
| 3987 | |
| 3988 if (PerfAllowAtExitRegistration) { | |
| 3989 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 3990 // atexit functions can be delayed until process exit time, which | |
| 3991 // can be problematic for embedded VM situations. Embedded VMs should | |
| 3992 // call DestroyJavaVM() to assure that VM resources are released. | |
| 3993 | |
| 3994 // note: perfMemory_exit_helper atexit function may be removed in | |
| 3995 // the future if the appropriate cleanup code can be added to the | |
| 3996 // VM_Exit VMOperation's doit method. | |
| 3997 if (atexit(perfMemory_exit_helper) != 0) { | |
| 3998 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
| 3999 } | |
| 4000 } | |
| 4001 | |
| 4002 #ifndef _WIN64 | |
| 4003 // Print something if NX is enabled (win32 on AMD64) | |
| 4004 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
| 4005 #endif | |
| 4006 | |
| 4007 // initialize thread priority policy | |
| 4008 prio_init(); | |
| 4009 | |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4010 if (UseNUMA && !ForceNUMA) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4011 UseNUMA = false; // We don't fully support this yet |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4012 } |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4013 |
| 3885 | 4014 if (UseNUMAInterleaving) { |
| 4015 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
| 4016 bool success = numa_interleaving_init(); | |
| 4017 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
|
4018 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
4019 |
| 8872 | 4020 if (initSock() != JNI_OK) { |
| 4021 return JNI_ERR; | |
| 4022 } | |
| 4023 | |
| 0 | 4024 return JNI_OK; |
| 4025 } | |
| 4026 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4027 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4028 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4029 } |
| 0 | 4030 |
| 4031 // Mark the polling page as unreadable | |
| 4032 void os::make_polling_page_unreadable(void) { | |
| 4033 DWORD old_status; | |
| 4034 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
| 4035 fatal("Could not disable polling page"); | |
| 4036 }; | |
| 4037 | |
| 4038 // Mark the polling page as readable | |
| 4039 void os::make_polling_page_readable(void) { | |
| 4040 DWORD old_status; | |
| 4041 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
| 4042 fatal("Could not enable polling page"); | |
| 4043 }; | |
| 4044 | |
| 4045 | |
| 4046 int os::stat(const char *path, struct stat *sbuf) { | |
| 4047 char pathbuf[MAX_PATH]; | |
| 4048 if (strlen(path) > MAX_PATH - 1) { | |
| 4049 errno = ENAMETOOLONG; | |
| 4050 return -1; | |
| 4051 } | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4052 os::native_path(strcpy(pathbuf, path)); |
| 0 | 4053 int ret = ::stat(pathbuf, sbuf); |
| 4054 if (sbuf != NULL && UseUTCFileTimestamp) { | |
| 4055 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
| 4056 // the system timezone and so can return different values for the | |
| 4057 // same file if/when daylight savings time changes. This adjustment | |
| 4058 // makes sure the same timestamp is returned regardless of the TZ. | |
| 4059 // | |
| 4060 // See: | |
| 4061 // http://msdn.microsoft.com/library/ | |
| 4062 // default.asp?url=/library/en-us/sysinfo/base/ | |
| 4063 // time_zone_information_str.asp | |
| 4064 // and | |
| 4065 // http://msdn.microsoft.com/library/default.asp?url= | |
| 4066 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
| 4067 // | |
| 4068 // NOTE: there is a insidious bug here: If the timezone is changed | |
| 4069 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
| 4070 // the adjustment we do here will be wrong and we'll return the wrong | |
| 4071 // value (which will likely end up creating an invalid class data | |
| 4072 // archive). Absent a better API for this, or some time zone locking | |
| 4073 // mechanism, we'll have to live with this risk. | |
| 4074 TIME_ZONE_INFORMATION tz; | |
| 4075 DWORD tzid = GetTimeZoneInformation(&tz); | |
| 4076 int daylightBias = | |
| 4077 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
| 4078 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
| 4079 } | |
| 4080 return ret; | |
| 4081 } | |
| 4082 | |
| 4083 | |
| 4084 #define FT2INT64(ft) \ | |
| 4085 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
| 4086 | |
| 4087 | |
| 4088 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 4089 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 4090 // of a thread. | |
| 4091 // | |
| 4092 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
| 4093 // the fast estimate available on the platform. | |
| 4094 | |
| 4095 // current_thread_cpu_time() is not optimized for Windows yet | |
| 4096 jlong os::current_thread_cpu_time() { | |
| 4097 // return user + sys since the cost is the same | |
| 4098 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
| 4099 } | |
| 4100 | |
| 4101 jlong os::thread_cpu_time(Thread* thread) { | |
| 4102 // consistent with what current_thread_cpu_time() returns. | |
| 4103 return os::thread_cpu_time(thread, true /* user+sys */); | |
| 4104 } | |
| 4105 | |
| 4106 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 4107 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 4108 } | |
| 4109 | |
| 4110 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
| 4111 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
| 4112 // If this function changes, os::is_thread_cpu_time_supported() should too | |
| 4113 if (os::win32::is_nt()) { | |
| 4114 FILETIME CreationTime; | |
| 4115 FILETIME ExitTime; | |
| 4116 FILETIME KernelTime; | |
| 4117 FILETIME UserTime; | |
| 4118 | |
| 4119 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
| 4120 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 4121 return -1; | |
| 4122 else | |
| 4123 if (user_sys_cpu_time) { | |
| 4124 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
| 4125 } else { | |
| 4126 return FT2INT64(UserTime) * 100; | |
| 4127 } | |
| 4128 } else { | |
| 4129 return (jlong) timeGetTime() * 1000000; | |
| 4130 } | |
| 4131 } | |
| 4132 | |
| 4133 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 4134 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 4135 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 4136 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 4137 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 4138 } | |
| 4139 | |
| 4140 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 4141 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 4142 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 4143 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 4144 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 4145 } | |
| 4146 | |
| 4147 bool os::is_thread_cpu_time_supported() { | |
| 4148 // see os::thread_cpu_time | |
| 4149 if (os::win32::is_nt()) { | |
| 4150 FILETIME CreationTime; | |
| 4151 FILETIME ExitTime; | |
| 4152 FILETIME KernelTime; | |
| 4153 FILETIME UserTime; | |
| 4154 | |
| 4155 if ( GetThreadTimes(GetCurrentThread(), | |
| 4156 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 4157 return false; | |
| 4158 else | |
| 4159 return true; | |
| 4160 } else { | |
| 4161 return false; | |
| 4162 } | |
| 4163 } | |
| 4164 | |
| 4165 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
| 4166 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
| 4167 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
| 4168 // If we wanted to implement loadavg on Windows, we have a few options: | |
| 4169 // | |
| 4170 // a) Query CPU usage and run queue length and "fake" an answer by | |
| 4171 // returning the CPU usage if it's under 100%, and the run queue | |
| 4172 // length otherwise. It turns out that querying is pretty slow | |
| 4173 // on Windows, on the order of 200 microseconds on a fast machine. | |
| 4174 // Note that on the Windows the CPU usage value is the % usage | |
| 4175 // since the last time the API was called (and the first call | |
| 4176 // returns 100%), so we'd have to deal with that as well. | |
| 4177 // | |
| 4178 // b) Sample the "fake" answer using a sampling thread and store | |
| 4179 // the answer in a global variable. The call to loadavg would | |
| 4180 // just return the value of the global, avoiding the slow query. | |
| 4181 // | |
| 4182 // c) Sample a better answer using exponential decay to smooth the | |
| 4183 // value. This is basically the algorithm used by UNIX kernels. | |
| 4184 // | |
| 4185 // Note that sampling thread starvation could affect both (b) and (c). | |
| 4186 int os::loadavg(double loadavg[], int nelem) { | |
| 4187 return -1; | |
| 4188 } | |
| 4189 | |
| 4190 | |
| 4191 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
| 4192 bool os::dont_yield() { | |
| 4193 return DontYieldALot; | |
| 4194 } | |
| 4195 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4196 // 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
|
4197 // 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
|
4198 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4199 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
|
4200 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4201 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4202 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4203 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4204 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4205 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4206 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4207 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
|
4208 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4209 |
|
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4210 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
|
4211 return ::_fdopen(fd, mode); |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4212 } |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4213 |
| 0 | 4214 // Is a (classpath) directory empty? |
| 4215 bool os::dir_is_empty(const char* path) { | |
| 4216 WIN32_FIND_DATA fd; | |
| 4217 HANDLE f = FindFirstFile(path, &fd); | |
| 4218 if (f == INVALID_HANDLE_VALUE) { | |
| 4219 return true; | |
| 4220 } | |
| 4221 FindClose(f); | |
| 4222 return false; | |
| 4223 } | |
| 4224 | |
| 4225 // create binary file, rewriting existing file if required | |
| 4226 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 4227 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
| 4228 if (!rewrite_existing) { | |
| 4229 oflags |= _O_EXCL; | |
| 4230 } | |
| 4231 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
| 4232 } | |
| 4233 | |
| 4234 // return current position of file pointer | |
| 4235 jlong os::current_file_offset(int fd) { | |
| 4236 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
| 4237 } | |
| 4238 | |
| 4239 // move file pointer to the specified offset | |
| 4240 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 4241 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
| 4242 } | |
| 4243 | |
| 4244 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4245 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
|
4246 return (jlong) ::_lseeki64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4247 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4248 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4249 // 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
|
4250 // from src/windows/hpi/src/path_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4251 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4252 /* 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
|
4253 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
|
4254 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
|
4255 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
|
4256 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
|
4257 treat double-byte lead characters correctly. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4258 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4259 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
|
4260 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
|
4261 succeeds. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4262 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4263 char *src = path, *dst = path, *end = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4264 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
|
4265 point to the colon following the drive |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4266 letter */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4267 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4268 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4269 assert(((!::IsDBCSLeadByte('/')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4270 && (!::IsDBCSLeadByte('\\')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4271 && (!::IsDBCSLeadByte(':'))), |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4272 "Illegal lead byte"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4273 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4274 /* Check for leading separators */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4275 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4276 while (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4277 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4278 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4279 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4280 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4281 /* 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
|
4282 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
|
4283 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
|
4284 "/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
|
4285 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4286 colon = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4287 *dst++ = ':'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4288 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4289 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4290 src = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4291 if (isfilesep(src[0]) && isfilesep(src[1])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4292 /* 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
|
4293 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
|
4294 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
|
4295 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
|
4296 src = dst = path + 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4297 path[0] = '\\'; /* Force first separator to '\\' */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4298 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4299 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4300 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4301 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4302 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4303 /* 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
|
4304 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
|
4305 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
|
4306 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
|
4307 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4308 while (*src != '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4309 if (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4310 *dst++ = '\\'; src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4311 while (isfilesep(*src)) src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4312 if (*src == '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4313 /* Check for trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4314 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4315 if (colon == dst - 2) break; /* "z:\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4316 if (dst == path + 1) break; /* "\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4317 if (dst == path + 2 && isfilesep(path[0])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4318 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4319 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
|
4320 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
|
4321 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
|
4322 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
|
4323 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
|
4324 directory of the current drive. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4325 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4326 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4327 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
|
4328 remove trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4329 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4330 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4331 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4332 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4333 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4334 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4335 if (*src) *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4336 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4337 } else { /* Copy a single-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4338 char c = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4339 *dst++ = c; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4340 /* Space is not a legal ending character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4341 if (c != ' ') end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4342 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4343 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4344 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4345 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4346 *end = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4347 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4348 /* 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
|
4349 if (colon == dst - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4350 path[2] = '.'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4351 path[3] = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4352 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4353 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4354 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4355 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4356 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4357 // 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
|
4358 // 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
|
4359 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4360 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4361 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4362 long high = (long)(length >> 32); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4363 DWORD ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4364 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4365 if (h == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4366 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4367 } |
|
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 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4370 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4371 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4372 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4373 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4374 if (::SetEndOfFile(h) == FALSE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4375 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4376 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4377 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4378 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4379 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4380 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4381 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4382 // 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
|
4383 // 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
|
4384 // 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
|
4385 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4386 int os::fsync(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4387 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4388 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4389 if ( (!::FlushFileBuffers(handle)) && |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4390 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4391 /* from winerror.h */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4392 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4393 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4394 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4395 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4396 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4397 static int nonSeekAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4398 static int stdinAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4399 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4400 #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
|
4401 #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
|
4402 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4403 // 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
|
4404 // 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
|
4405 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4406 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4407 jlong cur, end; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4408 struct _stati64 stbuf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4409 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4410 if (::_fstati64(fd, &stbuf64) >= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4411 int mode = stbuf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4412 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4413 int ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4414 long lpbytes; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4415 if (fd == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4416 ret = stdinAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4417 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4418 ret = nonSeekAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4419 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4420 (*bytes) = (jlong)(lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4421 return ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4422 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4423 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4424 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4425 } 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
|
4426 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4427 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4428 return FALSE; |
|
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 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4431 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4432 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4433 return FALSE; |
|
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 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4436 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4437 // 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
|
4438 // 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
|
4439 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4440 static int nonSeekAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4441 /* 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
|
4442 * (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
|
4443 * connected to an exec'd process). |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4444 * Standard Input is a special case. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4445 * |
|
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 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4448 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4449 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4450 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4451 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4452 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4453 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
|
4454 /* 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
|
4455 * 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
|
4456 * 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
|
4457 * The only alternative is to raise an Exception, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4458 * which isn't really warranted. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4459 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4460 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4461 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4462 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4463 *pbytes = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4464 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4465 return TRUE; |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4468 #define MAX_INPUT_EVENTS 2000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4469 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4470 // 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
|
4471 // 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
|
4472 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4473 static int stdinAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4474 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4475 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
|
4476 DWORD numEvents = 0; /* Number of events in buffer */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4477 DWORD i = 0; /* Loop index */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4478 DWORD curLength = 0; /* Position marker */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4479 DWORD actualLength = 0; /* Number of bytes readable */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4480 BOOL error = FALSE; /* Error holder */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4481 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
|
4482 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4483 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
|
4484 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4485 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4486 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4487 /* 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
|
4488 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4489 if (error == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4490 return nonSeekAvailable(fd, pbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4491 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4492 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4493 /* 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
|
4494 if (numEvents > MAX_INPUT_EVENTS) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4495 numEvents = MAX_INPUT_EVENTS; |
|
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 |
| 6197 | 4498 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
|
4499 if (lpBuffer == NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4500 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4501 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4502 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4503 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4504 if (error == 0) { |
| 6197 | 4505 os::free(lpBuffer, mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4506 return FALSE; |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4509 /* 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
|
4510 for(i=0; i<numEvents; i++) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4511 if (lpBuffer[i].EventType == KEY_EVENT) { |
|
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 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4514 &(lpBuffer[i].Event); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4515 if (keyRecord->bKeyDown == TRUE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4516 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4517 curLength++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4518 if (*keyPressed == '\r') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4519 actualLength = curLength; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
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|
4520 } |
|
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diff
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|
4521 } |
|
828eafbd85cc
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1972
diff
changeset
|
4522 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4523 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4524 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4525 if(lpBuffer != NULL) { |
| 6197 | 4526 os::free(lpBuffer, mtInternal); |
|
1980
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6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4527 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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parents:
1972
diff
changeset
|
4528 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
changeset
|
4529 *pbytes = (long) actualLength; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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1972
diff
changeset
|
4530 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4531 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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1972
diff
changeset
|
4532 |
| 0 | 4533 // Map a block of memory. |
| 6197 | 4534 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4535 char *addr, size_t bytes, bool read_only, |
| 4536 bool allow_exec) { | |
| 4537 HANDLE hFile; | |
| 4538 char* base; | |
| 4539 | |
| 4540 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
| 4541 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
| 4542 if (hFile == NULL) { | |
| 4543 if (PrintMiscellaneous && Verbose) { | |
| 4544 DWORD err = GetLastError(); | |
|
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203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
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7458
diff
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|
4545 tty->print_cr("CreateFile() failed: GetLastError->%ld.", err); |
| 0 | 4546 } |
| 4547 return NULL; | |
| 4548 } | |
| 4549 | |
| 4550 if (allow_exec) { | |
| 4551 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
| 4552 // unless it comes from a PE image (which the shared archive is not.) | |
| 4553 // Even VirtualProtect refuses to give execute access to mapped memory | |
| 4554 // that was not previously executable. | |
| 4555 // | |
| 4556 // Instead, stick the executable region in anonymous memory. Yuck. | |
| 4557 // Penalty is that ~4 pages will not be shareable - in the future | |
| 4558 // we might consider DLLizing the shared archive with a proper PE | |
| 4559 // header so that mapping executable + sharing is possible. | |
| 4560 | |
| 4561 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
| 4562 PAGE_READWRITE); | |
| 4563 if (base == NULL) { | |
| 4564 if (PrintMiscellaneous && Verbose) { | |
| 4565 DWORD err = GetLastError(); | |
| 4566 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
| 4567 } | |
| 4568 CloseHandle(hFile); | |
| 4569 return NULL; | |
| 4570 } | |
| 4571 | |
| 4572 DWORD bytes_read; | |
| 4573 OVERLAPPED overlapped; | |
| 4574 overlapped.Offset = (DWORD)file_offset; | |
| 4575 overlapped.OffsetHigh = 0; | |
| 4576 overlapped.hEvent = NULL; | |
| 4577 // ReadFile guarantees that if the return value is true, the requested | |
| 4578 // number of bytes were read before returning. | |
| 4579 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
| 4580 if (!res) { | |
| 4581 if (PrintMiscellaneous && Verbose) { | |
| 4582 DWORD err = GetLastError(); | |
| 4583 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
| 4584 } | |
| 4585 release_memory(base, bytes); | |
| 4586 CloseHandle(hFile); | |
| 4587 return NULL; | |
| 4588 } | |
| 4589 } else { | |
| 4590 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
| 4591 NULL /*file_name*/); | |
| 4592 if (hMap == NULL) { | |
| 4593 if (PrintMiscellaneous && Verbose) { | |
| 4594 DWORD err = GetLastError(); | |
|
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7458
diff
changeset
|
4595 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld.", err); |
| 0 | 4596 } |
| 4597 CloseHandle(hFile); | |
| 4598 return NULL; | |
| 4599 } | |
| 4600 | |
| 4601 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
| 4602 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
| 4603 (DWORD)bytes, addr); | |
| 4604 if (base == NULL) { | |
| 4605 if (PrintMiscellaneous && Verbose) { | |
| 4606 DWORD err = GetLastError(); | |
| 4607 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
| 4608 } | |
| 4609 CloseHandle(hMap); | |
| 4610 CloseHandle(hFile); | |
| 4611 return NULL; | |
| 4612 } | |
| 4613 | |
| 4614 if (CloseHandle(hMap) == 0) { | |
| 4615 if (PrintMiscellaneous && Verbose) { | |
| 4616 DWORD err = GetLastError(); | |
| 4617 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
| 4618 } | |
| 4619 CloseHandle(hFile); | |
| 4620 return base; | |
| 4621 } | |
| 4622 } | |
| 4623 | |
| 4624 if (allow_exec) { | |
| 4625 DWORD old_protect; | |
| 4626 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
| 4627 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
| 4628 | |
| 4629 if (!res) { | |
| 4630 if (PrintMiscellaneous && Verbose) { | |
| 4631 DWORD err = GetLastError(); | |
| 4632 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
| 4633 } | |
| 4634 // Don't consider this a hard error, on IA32 even if the | |
| 4635 // VirtualProtect fails, we should still be able to execute | |
| 4636 CloseHandle(hFile); | |
| 4637 return base; | |
| 4638 } | |
| 4639 } | |
| 4640 | |
| 4641 if (CloseHandle(hFile) == 0) { | |
| 4642 if (PrintMiscellaneous && Verbose) { | |
| 4643 DWORD err = GetLastError(); | |
| 4644 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
| 4645 } | |
| 4646 return base; | |
| 4647 } | |
| 4648 | |
| 4649 return base; | |
| 4650 } | |
| 4651 | |
| 4652 | |
| 4653 // Remap a block of memory. | |
| 6197 | 4654 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4655 char *addr, size_t bytes, bool read_only, |
| 4656 bool allow_exec) { | |
| 4657 // This OS does not allow existing memory maps to be remapped so we | |
| 4658 // have to unmap the memory before we remap it. | |
| 4659 if (!os::unmap_memory(addr, bytes)) { | |
| 4660 return NULL; | |
| 4661 } | |
| 4662 | |
| 4663 // There is a very small theoretical window between the unmap_memory() | |
| 4664 // call above and the map_memory() call below where a thread in native | |
| 4665 // code may be able to access an address that is no longer mapped. | |
| 4666 | |
| 6197 | 4667 return os::map_memory(fd, file_name, file_offset, addr, bytes, |
| 4668 read_only, allow_exec); | |
| 0 | 4669 } |
| 4670 | |
| 4671 | |
| 4672 // Unmap a block of memory. | |
| 4673 // Returns true=success, otherwise false. | |
| 4674 | |
| 6197 | 4675 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
| 0 | 4676 BOOL result = UnmapViewOfFile(addr); |
| 4677 if (result == 0) { | |
| 4678 if (PrintMiscellaneous && Verbose) { | |
| 4679 DWORD err = GetLastError(); | |
| 4680 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
| 4681 } | |
| 4682 return false; | |
| 4683 } | |
| 4684 return true; | |
| 4685 } | |
| 4686 | |
| 4687 void os::pause() { | |
| 4688 char filename[MAX_PATH]; | |
| 4689 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 4690 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 4691 } else { | |
| 4692 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 4693 } | |
| 4694 | |
| 4695 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 4696 if (fd != -1) { | |
| 4697 struct stat buf; | |
|
1980
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1972
diff
changeset
|
4698 ::close(fd); |
| 0 | 4699 while (::stat(filename, &buf) == 0) { |
| 4700 Sleep(100); | |
| 4701 } | |
| 4702 } else { | |
| 4703 jio_fprintf(stderr, | |
| 4704 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 4705 } | |
| 4706 } | |
| 4707 | |
| 11151 | 4708 os::WatcherThreadCrashProtection::WatcherThreadCrashProtection() { |
| 4709 assert(Thread::current()->is_Watcher_thread(), "Must be WatcherThread"); | |
| 4710 } | |
| 4711 | |
| 4712 /* | |
| 4713 * See the caveats for this class in os_windows.hpp | |
| 4714 * Protects the callback call so that raised OS EXCEPTIONS causes a jump back | |
| 4715 * into this method and returns false. If no OS EXCEPTION was raised, returns | |
| 4716 * true. | |
| 4717 * The callback is supposed to provide the method that should be protected. | |
| 4718 */ | |
| 4719 bool os::WatcherThreadCrashProtection::call(os::CrashProtectionCallback& cb) { | |
| 4720 assert(Thread::current()->is_Watcher_thread(), "Only for WatcherThread"); | |
| 4721 assert(!WatcherThread::watcher_thread()->has_crash_protection(), | |
| 4722 "crash_protection already set?"); | |
| 4723 | |
| 4724 bool success = true; | |
| 4725 __try { | |
| 4726 WatcherThread::watcher_thread()->set_crash_protection(this); | |
| 4727 cb.call(); | |
| 4728 } __except(EXCEPTION_EXECUTE_HANDLER) { | |
| 4729 // only for protection, nothing to do | |
| 4730 success = false; | |
| 4731 } | |
| 4732 WatcherThread::watcher_thread()->set_crash_protection(NULL); | |
| 4733 return success; | |
| 4734 } | |
| 4735 | |
| 0 | 4736 // An Event wraps a win32 "CreateEvent" kernel handle. |
| 4737 // | |
| 4738 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
| 4739 // | |
| 4740 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
| 4741 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
| 4742 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
| 4743 // In addition, an unpark() operation might fetch the handle field, but the | |
| 4744 // event could recycle between the fetch and the SetEvent() operation. | |
| 4745 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
| 4746 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
| 4747 // on an stale but recycled handle would be harmless, but in practice this might | |
| 4748 // confuse other non-Sun code, so it's not a viable approach. | |
| 4749 // | |
| 4750 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
| 4751 // with the Event. The event handle is never closed. This could be construed | |
| 4752 // as handle leakage, but only up to the maximum # of threads that have been extant | |
| 4753 // at any one time. This shouldn't be an issue, as windows platforms typically | |
| 4754 // permit a process to have hundreds of thousands of open handles. | |
| 4755 // | |
| 4756 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
| 4757 // and release unused handles. | |
| 4758 // | |
| 4759 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
| 4760 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
| 4761 // | |
| 4762 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
| 4763 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
| 4764 // | |
| 4765 // We use (2). | |
| 4766 // | |
| 4767 // TODO-FIXME: | |
| 4768 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
| 4769 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
| 4770 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
| 4771 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
| 4772 // into a single win32 CreateEvent() handle. | |
| 4773 // | |
| 4774 // _Event transitions in park() | |
| 4775 // -1 => -1 : illegal | |
| 4776 // 1 => 0 : pass - return immediately | |
| 4777 // 0 => -1 : block | |
| 4778 // | |
| 4779 // _Event serves as a restricted-range semaphore : | |
| 4780 // -1 : thread is blocked | |
| 4781 // 0 : neutral - thread is running or ready | |
| 4782 // 1 : signaled - thread is running or ready | |
| 4783 // | |
| 4784 // Another possible encoding of _Event would be | |
| 4785 // with explicit "PARKED" and "SIGNALED" bits. | |
| 4786 | |
| 4787 int os::PlatformEvent::park (jlong Millis) { | |
| 4788 guarantee (_ParkHandle != NULL , "Invariant") ; | |
| 4789 guarantee (Millis > 0 , "Invariant") ; | |
| 4790 int v ; | |
| 4791 | |
| 4792 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
| 4793 // the initial park() operation. | |
| 4794 | |
| 4795 for (;;) { | |
| 4796 v = _Event ; | |
| 4797 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4798 } | |
| 4799 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4800 if (v != 0) return OS_OK ; | |
| 4801 | |
| 4802 // Do this the hard way by blocking ... | |
| 4803 // TODO: consider a brief spin here, gated on the success of recent | |
| 4804 // spin attempts by this thread. | |
| 4805 // | |
| 4806 // We decompose long timeouts into series of shorter timed waits. | |
| 4807 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
| 4808 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
| 4809 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
| 4810 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
| 4811 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
| 4812 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
| 4813 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
| 4814 // for the already waited time. This policy does not admit any new outcomes. | |
| 4815 // In the future, however, we might want to track the accumulated wait time and | |
| 4816 // adjust Millis accordingly if we encounter a spurious wakeup. | |
| 4817 | |
| 4818 const int MAXTIMEOUT = 0x10000000 ; | |
| 4819 DWORD rv = WAIT_TIMEOUT ; | |
| 4820 while (_Event < 0 && Millis > 0) { | |
| 4821 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
| 4822 if (Millis > MAXTIMEOUT) { | |
| 4823 prd = MAXTIMEOUT ; | |
| 4824 } | |
| 4825 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
| 4826 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
| 4827 if (rv == WAIT_TIMEOUT) { | |
| 4828 Millis -= prd ; | |
| 4829 } | |
| 4830 } | |
| 4831 v = _Event ; | |
| 4832 _Event = 0 ; | |
|
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7623
diff
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|
4833 // see comment at end of os::PlatformEvent::park() below: |
| 0 | 4834 OrderAccess::fence() ; |
| 4835 // If we encounter a nearly simultanous timeout expiry and unpark() | |
| 4836 // we return OS_OK indicating we awoke via unpark(). | |
| 4837 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
| 4838 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
| 4839 } | |
| 4840 | |
| 4841 void os::PlatformEvent::park () { | |
| 4842 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4843 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 4844 // may call park(). | |
| 4845 int v ; | |
| 4846 for (;;) { | |
| 4847 v = _Event ; | |
| 4848 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4849 } | |
| 4850 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4851 if (v != 0) return ; | |
| 4852 | |
| 4853 // Do this the hard way by blocking ... | |
| 4854 // TODO: consider a brief spin here, gated on the success of recent | |
| 4855 // spin attempts by this thread. | |
| 4856 while (_Event < 0) { | |
| 4857 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
| 4858 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
| 4859 } | |
| 4860 | |
| 4861 // Usually we'll find _Event == 0 at this point, but as | |
| 4862 // an optional optimization we clear it, just in case can | |
| 4863 // multiple unpark() operations drove _Event up to 1. | |
| 4864 _Event = 0 ; | |
| 4865 OrderAccess::fence() ; | |
| 4866 guarantee (_Event >= 0, "invariant") ; | |
| 4867 } | |
| 4868 | |
| 4869 void os::PlatformEvent::unpark() { | |
| 4870 guarantee (_ParkHandle != NULL, "Invariant") ; | |
|
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|
4871 |
|
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dcubed
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|
4872 // Transitions for _Event: |
|
22ba8c8ce6a6
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dcubed
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diff
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|
4873 // 0 :=> 1 |
|
22ba8c8ce6a6
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diff
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|
4874 // 1 :=> 1 |
|
22ba8c8ce6a6
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diff
changeset
|
4875 // -1 :=> either 0 or 1; must signal target thread |
|
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diff
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|
4876 // That is, we can safely transition _Event from -1 to either |
|
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7623
diff
changeset
|
4877 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
|
22ba8c8ce6a6
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7623
diff
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|
4878 // unpark() calls. |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
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7623
diff
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|
4879 // See also: "Semaphores in Plan 9" by Mullender & Cox |
|
22ba8c8ce6a6
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dcubed
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7623
diff
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|
4880 // |
|
22ba8c8ce6a6
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7623
diff
changeset
|
4881 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
|
22ba8c8ce6a6
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dcubed
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7623
diff
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|
4882 // that it will take two back-to-back park() calls for the owning |
|
22ba8c8ce6a6
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7623
diff
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|
4883 // thread to block. This has the benefit of forcing a spurious return |
|
22ba8c8ce6a6
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7623
diff
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|
4884 // from the first park() call after an unpark() call which will help |
|
22ba8c8ce6a6
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7623
diff
changeset
|
4885 // shake out uses of park() and unpark() without condition variables. |
|
22ba8c8ce6a6
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7623
diff
changeset
|
4886 |
|
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|
4887 if (Atomic::xchg(1, &_Event) >= 0) return; |
|
22ba8c8ce6a6
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|
4888 |
|
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diff
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|
4889 ::SetEvent(_ParkHandle); |
| 0 | 4890 } |
| 4891 | |
| 4892 | |
| 4893 // JSR166 | |
| 4894 // ------------------------------------------------------- | |
| 4895 | |
| 4896 /* | |
| 4897 * The Windows implementation of Park is very straightforward: Basic | |
| 4898 * operations on Win32 Events turn out to have the right semantics to | |
| 4899 * use them directly. We opportunistically resuse the event inherited | |
| 4900 * from Monitor. | |
| 4901 */ | |
| 4902 | |
| 4903 | |
| 4904 void Parker::park(bool isAbsolute, jlong time) { | |
| 4905 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4906 // First, demultiplex/decode time arguments | |
| 4907 if (time < 0) { // don't wait | |
| 4908 return; | |
| 4909 } | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
4910 else if (time == 0 && !isAbsolute) { |
| 0 | 4911 time = INFINITE; |
| 4912 } | |
| 4913 else if (isAbsolute) { | |
| 4914 time -= os::javaTimeMillis(); // convert to relative time | |
| 4915 if (time <= 0) // already elapsed | |
| 4916 return; | |
| 4917 } | |
| 4918 else { // relative | |
| 4919 time /= 1000000; // Must coarsen from nanos to millis | |
| 4920 if (time == 0) // Wait for the minimal time unit if zero | |
| 4921 time = 1; | |
| 4922 } | |
| 4923 | |
| 4924 JavaThread* thread = (JavaThread*)(Thread::current()); | |
| 4925 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 4926 JavaThread *jt = (JavaThread *)thread; | |
| 4927 | |
| 4928 // Don't wait if interrupted or already triggered | |
| 4929 if (Thread::is_interrupted(thread, false) || | |
| 4930 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
| 4931 ResetEvent(_ParkEvent); | |
| 4932 return; | |
| 4933 } | |
| 4934 else { | |
| 4935 ThreadBlockInVM tbivm(jt); | |
| 4936 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 4937 jt->set_suspend_equivalent(); | |
| 4938 | |
| 4939 WaitForSingleObject(_ParkEvent, time); | |
| 4940 ResetEvent(_ParkEvent); | |
| 4941 | |
| 4942 // If externally suspended while waiting, re-suspend | |
| 4943 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 4944 jt->java_suspend_self(); | |
| 4945 } | |
| 4946 } | |
| 4947 } | |
| 4948 | |
| 4949 void Parker::unpark() { | |
| 4950 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4951 SetEvent(_ParkEvent); | |
| 4952 } | |
| 4953 | |
| 4954 // Run the specified command in a separate process. Return its exit value, | |
| 4955 // or -1 on failure (e.g. can't create a new process). | |
| 4956 int os::fork_and_exec(char* cmd) { | |
| 4957 STARTUPINFO si; | |
| 4958 PROCESS_INFORMATION pi; | |
| 4959 | |
| 4960 memset(&si, 0, sizeof(si)); | |
| 4961 si.cb = sizeof(si); | |
| 4962 memset(&pi, 0, sizeof(pi)); | |
| 4963 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
| 4964 cmd, // command line | |
| 4965 NULL, // process security attribute | |
| 4966 NULL, // thread security attribute | |
| 4967 TRUE, // inherits system handles | |
| 4968 0, // no creation flags | |
| 4969 NULL, // use parent's environment block | |
| 4970 NULL, // use parent's starting directory | |
| 4971 &si, // (in) startup information | |
| 4972 &pi); // (out) process information | |
| 4973 | |
| 4974 if (rslt) { | |
| 4975 // Wait until child process exits. | |
| 4976 WaitForSingleObject(pi.hProcess, INFINITE); | |
| 4977 | |
| 4978 DWORD exit_code; | |
| 4979 GetExitCodeProcess(pi.hProcess, &exit_code); | |
| 4980 | |
| 4981 // Close process and thread handles. | |
| 4982 CloseHandle(pi.hProcess); | |
| 4983 CloseHandle(pi.hThread); | |
| 4984 | |
| 4985 return (int)exit_code; | |
| 4986 } else { | |
| 4987 return -1; | |
| 4988 } | |
| 4989 } | |
| 4990 | |
| 4991 //-------------------------------------------------------------------------------------------------- | |
| 4992 // Non-product code | |
| 4993 | |
| 4994 static int mallocDebugIntervalCounter = 0; | |
| 4995 static int mallocDebugCounter = 0; | |
| 4996 bool os::check_heap(bool force) { | |
| 4997 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
| 4998 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
| 4999 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
| 5000 // wrong; at these points, eax contains the address of the offending block (I think). | |
| 5001 // To get to the exlicit error message(s) below, just continue twice. | |
| 5002 HANDLE heap = GetProcessHeap(); | |
| 5003 { HeapLock(heap); | |
| 5004 PROCESS_HEAP_ENTRY phe; | |
| 5005 phe.lpData = NULL; | |
| 5006 while (HeapWalk(heap, &phe) != 0) { | |
| 5007 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
| 5008 !HeapValidate(heap, 0, phe.lpData)) { | |
| 5009 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
| 5010 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
| 5011 fatal("corrupted C heap"); | |
| 5012 } | |
| 5013 } | |
|
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
5014 DWORD err = GetLastError(); |
| 0 | 5015 if (err != ERROR_NO_MORE_ITEMS && err != ERROR_CALL_NOT_IMPLEMENTED) { |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1353
diff
changeset
|
5016 fatal(err_msg("heap walk aborted with error %d", err)); |
| 0 | 5017 } |
| 5018 HeapUnlock(heap); | |
| 5019 } | |
| 5020 mallocDebugIntervalCounter = 0; | |
| 5021 } | |
| 5022 return true; | |
| 5023 } | |
| 5024 | |
| 5025 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5026 bool os::find(address addr, outputStream* st) { |
| 0 | 5027 // Nothing yet |
| 5028 return false; | |
| 5029 } | |
| 5030 | |
| 5031 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
| 5032 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
| 5033 | |
| 5034 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 5035 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
| 5036 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
| 5037 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 5038 | |
| 5039 if (os::is_memory_serialize_page(thread, addr)) | |
| 5040 return EXCEPTION_CONTINUE_EXECUTION; | |
| 5041 } | |
| 5042 | |
| 5043 return EXCEPTION_CONTINUE_SEARCH; | |
| 5044 } | |
| 5045 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5046 // We don't build a headless jre for Windows |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5047 bool os::is_headless_jre() { return false; } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5048 |
| 8872 | 5049 static jint initSock() { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5050 WSADATA wsadata; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5051 |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5052 if (!os::WinSock2Dll::WinSock2Available()) { |
| 8872 | 5053 jio_fprintf(stderr, "Could not load Winsock (error: %d)\n", |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5054 ::GetLastError()); |
| 8872 | 5055 return JNI_ERR; |
| 5056 } | |
| 5057 | |
| 5058 if (os::WinSock2Dll::WSAStartup(MAKEWORD(2,2), &wsadata) != 0) { | |
| 5059 jio_fprintf(stderr, "Could not initialize Winsock (error: %d)\n", | |
| 5060 ::GetLastError()); | |
| 5061 return JNI_ERR; | |
| 5062 } | |
| 5063 return JNI_OK; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5064 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5065 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5066 struct hostent* os::get_host_by_name(char* name) { |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5067 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5068 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5069 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5070 int os::socket_close(int fd) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5071 return ::closesocket(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5072 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5073 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5074 int os::socket_available(int fd, jint *pbytes) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5075 int ret = ::ioctlsocket(fd, FIONREAD, (u_long*)pbytes); |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5076 return (ret < 0) ? 0 : 1; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5077 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5078 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5079 int os::socket(int domain, int type, int protocol) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5080 return ::socket(domain, type, protocol); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5081 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5082 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5083 int os::listen(int fd, int count) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5084 return ::listen(fd, count); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5085 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5086 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5087 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
|
5088 return ::connect(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5089 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5090 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5091 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
|
5092 return ::accept(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5093 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5094 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5095 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
|
5096 struct sockaddr* to, socklen_t tolen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5097 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5098 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
|
5099 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5100 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5101 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
|
5102 sockaddr* from, socklen_t* fromlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5103 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5104 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
|
5105 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5106 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5107 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
|
5108 return ::recv(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5109 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5110 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5111 int os::send(int fd, char* buf, size_t nBytes, uint flags) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5112 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5113 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5114 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5115 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
|
5116 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5117 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5118 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5119 int os::timeout(int fd, long timeout) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5120 fd_set tbl; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5121 struct timeval t; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5122 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5123 t.tv_sec = timeout / 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5124 t.tv_usec = (timeout % 1000) * 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5125 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5126 tbl.fd_count = 1; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5127 tbl.fd_array[0] = fd; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5128 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5129 return ::select(1, &tbl, 0, 0, &t); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5130 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5131 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5132 int os::get_host_name(char* name, int namelen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5133 return ::gethostname(name, namelen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5134 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5135 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5136 int os::socket_shutdown(int fd, int howto) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5137 return ::shutdown(fd, howto); |
|
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 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5140 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
|
5141 return ::bind(fd, him, len); |
|
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 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5144 int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
|
6044
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|
5145 return ::getsockname(fd, him, len); |
|
1980
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|
5146 } |
|
828eafbd85cc
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|
5147 |
|
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|
5148 int os::get_sock_opt(int fd, int level, int optname, |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
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|
5149 char* optval, socklen_t* optlen) { |
|
6044
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|
5150 return ::getsockopt(fd, level, optname, optval, optlen); |
|
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|
5151 } |
|
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|
5152 |
|
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|
5153 int os::set_sock_opt(int fd, int level, int optname, |
|
4717
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|
5154 const char* optval, socklen_t optlen) { |
|
6044
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|
5155 return ::setsockopt(fd, level, optname, optval, optlen); |
|
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|
5156 } |
|
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5157 |
| 10405 | 5158 // WINDOWS CONTEXT Flags for THREAD_SAMPLING |
| 5159 #if defined(IA32) | |
| 5160 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT | CONTEXT_EXTENDED_REGISTERS) | |
| 5161 #elif defined (AMD64) | |
| 5162 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
| 5163 #endif | |
| 5164 | |
| 5165 // returns true if thread could be suspended, | |
| 5166 // false otherwise | |
| 5167 static bool do_suspend(HANDLE* h) { | |
| 5168 if (h != NULL) { | |
| 5169 if (SuspendThread(*h) != ~0) { | |
| 5170 return true; | |
| 5171 } | |
| 5172 } | |
| 5173 return false; | |
| 5174 } | |
| 5175 | |
| 5176 // resume the thread | |
| 5177 // calling resume on an active thread is a no-op | |
| 5178 static void do_resume(HANDLE* h) { | |
| 5179 if (h != NULL) { | |
| 5180 ResumeThread(*h); | |
| 5181 } | |
| 5182 } | |
| 5183 | |
| 5184 // retrieve a suspend/resume context capable handle | |
| 5185 // from the tid. Caller validates handle return value. | |
| 5186 void get_thread_handle_for_extended_context(HANDLE* h, OSThread::thread_id_t tid) { | |
| 5187 if (h != NULL) { | |
| 5188 *h = OpenThread(THREAD_SUSPEND_RESUME | THREAD_GET_CONTEXT | THREAD_QUERY_INFORMATION, FALSE, tid); | |
| 5189 } | |
| 5190 } | |
| 5191 | |
| 5192 // | |
| 5193 // Thread sampling implementation | |
| 5194 // | |
| 5195 void os::SuspendedThreadTask::internal_do_task() { | |
| 5196 CONTEXT ctxt; | |
| 5197 HANDLE h = NULL; | |
| 5198 | |
| 5199 // get context capable handle for thread | |
| 5200 get_thread_handle_for_extended_context(&h, _thread->osthread()->thread_id()); | |
| 5201 | |
| 5202 // sanity | |
| 5203 if (h == NULL || h == INVALID_HANDLE_VALUE) { | |
| 5204 return; | |
| 5205 } | |
| 5206 | |
| 5207 // suspend the thread | |
| 5208 if (do_suspend(&h)) { | |
| 5209 ctxt.ContextFlags = sampling_context_flags; | |
| 5210 // get thread context | |
| 5211 GetThreadContext(h, &ctxt); | |
| 5212 SuspendedThreadTaskContext context(_thread, &ctxt); | |
| 5213 // pass context to Thread Sampling impl | |
| 5214 do_task(context); | |
| 5215 // resume thread | |
| 5216 do_resume(&h); | |
| 5217 } | |
| 5218 | |
| 5219 // close handle | |
| 5220 CloseHandle(h); | |
| 5221 } | |
| 5222 | |
|
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|
5223 |
|
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|
5224 // Kernel32 API |
|
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|
5225 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
| 3885 | 5226 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
| 5227 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
| 5228 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
| 6197 | 5229 typedef USHORT (WINAPI* RtlCaptureStackBackTrace_Fn)(ULONG, ULONG, PVOID*, PULONG); |
| 3885 | 5230 |
|
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|
5231 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
| 3885 | 5232 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
| 5233 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
| 5234 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
| 6197 | 5235 RtlCaptureStackBackTrace_Fn os::Kernel32Dll::_RtlCaptureStackBackTrace = NULL; |
| 5236 | |
| 5237 | |
|
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|
5238 BOOL os::Kernel32Dll::initialized = FALSE; |
|
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|
5239 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
|
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|
5240 assert(initialized && _GetLargePageMinimum != NULL, |
|
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|
5241 "GetLargePageMinimumAvailable() not yet called"); |
|
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|
5242 return _GetLargePageMinimum(); |
|
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|
5243 } |
|
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|
5244 |
|
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|
5245 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
|
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|
5246 if (!initialized) { |
|
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|
5247 initialize(); |
|
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|
5248 } |
|
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|
5249 return _GetLargePageMinimum != NULL; |
|
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|
5250 } |
|
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|
5251 |
| 3885 | 5252 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
| 5253 if (!initialized) { | |
| 5254 initialize(); | |
| 5255 } | |
| 5256 return _VirtualAllocExNuma != NULL; | |
| 5257 } | |
| 5258 | |
| 5259 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
| 5260 assert(initialized && _VirtualAllocExNuma != NULL, | |
| 5261 "NUMACallsAvailable() not yet called"); | |
| 5262 | |
| 5263 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
| 5264 } | |
| 5265 | |
| 5266 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
| 5267 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
| 5268 "NUMACallsAvailable() not yet called"); | |
| 5269 | |
| 5270 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
| 5271 } | |
| 5272 | |
| 5273 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
| 5274 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
| 5275 "NUMACallsAvailable() not yet called"); | |
| 5276 | |
| 5277 return _GetNumaNodeProcessorMask(node, proc_mask); | |
| 5278 } | |
| 5279 | |
| 6197 | 5280 USHORT os::Kernel32Dll::RtlCaptureStackBackTrace(ULONG FrameToSkip, |
| 5281 ULONG FrameToCapture, PVOID* BackTrace, PULONG BackTraceHash) { | |
| 5282 if (!initialized) { | |
| 5283 initialize(); | |
| 5284 } | |
| 5285 | |
| 5286 if (_RtlCaptureStackBackTrace != NULL) { | |
| 5287 return _RtlCaptureStackBackTrace(FrameToSkip, FrameToCapture, | |
| 5288 BackTrace, BackTraceHash); | |
| 5289 } else { | |
| 5290 return 0; | |
| 5291 } | |
| 5292 } | |
| 3885 | 5293 |
| 5294 void os::Kernel32Dll::initializeCommon() { | |
| 5295 if (!initialized) { | |
| 5296 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
| 5297 assert(handle != NULL, "Just check"); | |
| 5298 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
| 5299 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
| 5300 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
| 5301 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
| 6197 | 5302 _RtlCaptureStackBackTrace = (RtlCaptureStackBackTrace_Fn)::GetProcAddress(handle, "RtlCaptureStackBackTrace"); |
| 3885 | 5303 initialized = TRUE; |
| 5304 } | |
| 5305 } | |
| 5306 | |
| 5307 | |
|
3833
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|
5308 |
|
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|
5309 #ifndef JDK6_OR_EARLIER |
|
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|
5310 |
|
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|
5311 void os::Kernel32Dll::initialize() { |
| 3885 | 5312 initializeCommon(); |
|
3833
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|
5313 } |
|
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|
5314 |
|
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|
5315 |
|
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|
5316 // Kernel32 API |
|
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|
5317 inline BOOL os::Kernel32Dll::SwitchToThread() { |
|
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|
5318 return ::SwitchToThread(); |
|
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|
5319 } |
|
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|
5320 |
|
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|
5321 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
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|
5322 return true; |
|
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|
5323 } |
|
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|
5324 |
|
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|
5325 // Help tools |
|
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|
5326 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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|
5327 return true; |
|
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|
5328 } |
|
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|
5329 |
|
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|
5330 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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|
5331 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
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|
5332 } |
|
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|
5333 |
|
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|
5334 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5335 return ::Module32First(hSnapshot, lpme); |
|
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|
5336 } |
|
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|
5337 |
|
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|
5338 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5339 return ::Module32Next(hSnapshot, lpme); |
|
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|
5340 } |
|
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|
5341 |
|
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|
5342 |
|
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|
5343 inline BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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|
5344 return true; |
|
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|
5345 } |
|
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|
5346 |
|
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|
5347 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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|
5348 ::GetNativeSystemInfo(lpSystemInfo); |
|
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|
5349 } |
|
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|
5350 |
|
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|
5351 // PSAPI API |
|
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|
5352 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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5353 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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|
5354 } |
|
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|
5355 |
|
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|
5356 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5357 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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zgu
parents:
3800
diff
changeset
|
5358 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5359 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5360 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5361 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5362 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5363 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5364 inline BOOL os::PSApiDll::PSApiAvailable() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5365 return true; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5366 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5367 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5368 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5369 // WinSock2 API |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5370 inline 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
|
5371 return ::WSAStartup(wVersionRequested, lpWSAData); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5372 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5373 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5374 inline 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
|
5375 return ::gethostbyname(name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5376 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5377 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5378 inline BOOL os::WinSock2Dll::WinSock2Available() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5379 return true; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5380 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5381 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5382 // Advapi API |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5383 inline 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
|
5384 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
|
5385 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5386 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5387 BufferLength, PreviousState, ReturnLength); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5388 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5389 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5390 inline 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
|
5391 PHANDLE TokenHandle) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5392 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5393 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5394 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5395 inline 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
|
5396 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5397 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5398 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5399 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5400 return true; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5401 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5402 |
|
12117
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5403 void* os::get_default_process_handle() { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5404 return (void*)GetModuleHandle(NULL); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5405 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5406 |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5407 // Builds a platform dependent Agent_OnLoad_<lib_name> function name |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5408 // which is used to find statically linked in agents. |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5409 // Additionally for windows, takes into account __stdcall names. |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5410 // Parameters: |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5411 // sym_name: Symbol in library we are looking for |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5412 // lib_name: Name of library to look in, NULL for shared libs. |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
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|
5413 // is_absolute_path == true if lib_name is absolute path to agent |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5414 // such as "C:/a/b/L.dll" |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5415 // == false if only the base name of the library is passed in |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5416 // such as "L" |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5417 char* os::build_agent_function_name(const char *sym_name, const char *lib_name, |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5418 bool is_absolute_path) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5419 char *agent_entry_name; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5420 size_t len; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5421 size_t name_len; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5422 size_t prefix_len = strlen(JNI_LIB_PREFIX); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5423 size_t suffix_len = strlen(JNI_LIB_SUFFIX); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5424 const char *start; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5425 |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5426 if (lib_name != NULL) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5427 len = name_len = strlen(lib_name); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5428 if (is_absolute_path) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5429 // Need to strip path, prefix and suffix |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5430 if ((start = strrchr(lib_name, *os::file_separator())) != NULL) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5431 lib_name = ++start; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5432 } else { |
| 12220 | 5433 // Need to check for drive prefix |
|
12117
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5434 if ((start = strchr(lib_name, ':')) != NULL) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5435 lib_name = ++start; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5436 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5437 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5438 if (len <= (prefix_len + suffix_len)) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5439 return NULL; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5440 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5441 lib_name += prefix_len; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5442 name_len = strlen(lib_name) - suffix_len; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5443 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5444 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5445 len = (lib_name != NULL ? name_len : 0) + strlen(sym_name) + 2; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5446 agent_entry_name = NEW_C_HEAP_ARRAY_RETURN_NULL(char, len, mtThread); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5447 if (agent_entry_name == NULL) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5448 return NULL; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5449 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5450 if (lib_name != NULL) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5451 const char *p = strrchr(sym_name, '@'); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5452 if (p != NULL && p != sym_name) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5453 // sym_name == _Agent_OnLoad@XX |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5454 strncpy(agent_entry_name, sym_name, (p - sym_name)); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5455 agent_entry_name[(p-sym_name)] = '\0'; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5456 // agent_entry_name == _Agent_OnLoad |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5457 strcat(agent_entry_name, "_"); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5458 strncat(agent_entry_name, lib_name, name_len); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5459 strcat(agent_entry_name, p); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5460 // agent_entry_name == _Agent_OnLoad_lib_name@XX |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5461 } else { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5462 strcpy(agent_entry_name, sym_name); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5463 strcat(agent_entry_name, "_"); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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parents:
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diff
changeset
|
5464 strncat(agent_entry_name, lib_name, name_len); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5465 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
changeset
|
5466 } else { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5467 strcpy(agent_entry_name, sym_name); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5468 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
12018
diff
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|
5469 return agent_entry_name; |
|
f92b82d454fa
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12018
diff
changeset
|
5470 } |
|
f92b82d454fa
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|
5471 |
|
3833
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|
5472 #else |
|
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|
5473 // Kernel32 API |
|
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5474 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
|
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5475 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
|
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5476 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
5477 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
5478 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
|
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|
5479 |
|
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|
5480 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
|
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|
5481 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
|
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5482 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
|
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5483 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
|
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5484 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
|
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|
5485 |
|
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|
5486 void os::Kernel32Dll::initialize() { |
|
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|
5487 if (!initialized) { |
|
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|
5488 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
|
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|
5489 assert(handle != NULL, "Just check"); |
|
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|
5490 |
|
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|
5491 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
|
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|
5492 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
|
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|
5493 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
|
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|
5494 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
|
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|
5495 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
|
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|
5496 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
| 3885 | 5497 initializeCommon(); // resolve the functions that always need resolving |
|
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|
5498 |
|
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|
5499 initialized = TRUE; |
|
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|
5500 } |
|
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|
5501 } |
|
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|
5502 |
|
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|
5503 BOOL os::Kernel32Dll::SwitchToThread() { |
|
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|
5504 assert(initialized && _SwitchToThread != NULL, |
|
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|
5505 "SwitchToThreadAvailable() not yet called"); |
|
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|
5506 return _SwitchToThread(); |
|
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|
5507 } |
|
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|
5508 |
|
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|
5509 |
|
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|
5510 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
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|
5511 if (!initialized) { |
|
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|
5512 initialize(); |
|
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|
5513 } |
|
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|
5514 return _SwitchToThread != NULL; |
|
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|
5515 } |
|
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|
5516 |
|
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|
5517 // Help tools |
|
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|
5518 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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|
5519 if (!initialized) { |
|
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|
5520 initialize(); |
|
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|
5521 } |
|
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|
5522 return _CreateToolhelp32Snapshot != NULL && |
|
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|
5523 _Module32First != NULL && |
|
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|
5524 _Module32Next != NULL; |
|
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|
5525 } |
|
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|
5526 |
|
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|
5527 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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|
5528 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
|
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|
5529 "HelpToolsAvailable() not yet called"); |
|
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|
5530 |
|
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|
5531 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
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|
5532 } |
|
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|
5533 |
|
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|
5534 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5535 assert(initialized && _Module32First != NULL, |
|
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|
5536 "HelpToolsAvailable() not yet called"); |
|
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|
5537 |
|
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|
5538 return _Module32First(hSnapshot, lpme); |
|
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|
5539 } |
|
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|
5540 |
|
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|
5541 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5542 assert(initialized && _Module32Next != NULL, |
|
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|
5543 "HelpToolsAvailable() not yet called"); |
|
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|
5544 |
|
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|
5545 return _Module32Next(hSnapshot, lpme); |
|
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|
5546 } |
|
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|
5547 |
|
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|
5548 |
|
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|
5549 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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|
5550 if (!initialized) { |
|
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|
5551 initialize(); |
|
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|
5552 } |
|
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|
5553 return _GetNativeSystemInfo != NULL; |
|
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|
5554 } |
|
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|
5555 |
|
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|
5556 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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|
5557 assert(initialized && _GetNativeSystemInfo != NULL, |
|
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|
5558 "GetNativeSystemInfoAvailable() not yet called"); |
|
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|
5559 |
|
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|
5560 _GetNativeSystemInfo(lpSystemInfo); |
|
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|
5561 } |
|
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|
5562 |
|
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|
5563 // PSAPI API |
|
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|
5564 |
|
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|
5565 |
|
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|
5566 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
|
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|
5567 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
|
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|
5568 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
|
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|
5569 |
|
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|
5570 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
|
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|
5571 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
|
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|
5572 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
|
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|
5573 BOOL os::PSApiDll::initialized = FALSE; |
|
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|
5574 |
|
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|
5575 void os::PSApiDll::initialize() { |
|
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|
5576 if (!initialized) { |
|
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|
5577 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
|
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|
5578 if (handle != NULL) { |
|
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|
5579 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
|
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|
5580 "EnumProcessModules"); |
|
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|
5581 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
|
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|
5582 "GetModuleFileNameExA"); |
|
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|
5583 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
|
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|
5584 "GetModuleInformation"); |
|
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|
5585 } |
|
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|
5586 initialized = TRUE; |
|
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|
5587 } |
|
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|
5588 } |
|
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|
5589 |
|
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changeset
|
5590 |
|
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diff
changeset
|
5591 |
|
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|
5592 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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|
5593 assert(initialized && _EnumProcessModules != NULL, |
|
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|
5594 "PSApiAvailable() not yet called"); |
|
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|
5595 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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|
5596 } |
|
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|
5597 |
|
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|
5598 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5599 assert(initialized && _GetModuleFileNameEx != NULL, |
|
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|
5600 "PSApiAvailable() not yet called"); |
|
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|
5601 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5602 } |
|
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|
5603 |
|
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|
5604 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5605 assert(initialized && _GetModuleInformation != NULL, |
|
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|
5606 "PSApiAvailable() not yet called"); |
|
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|
5607 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5608 } |
|
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|
5609 |
|
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|
5610 BOOL os::PSApiDll::PSApiAvailable() { |
|
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|
5611 if (!initialized) { |
|
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|
5612 initialize(); |
|
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|
5613 } |
|
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|
5614 return _EnumProcessModules != NULL && |
|
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|
5615 _GetModuleFileNameEx != NULL && |
|
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|
5616 _GetModuleInformation != NULL; |
|
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|
5617 } |
|
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|
5618 |
|
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|
5619 |
|
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|
5620 // WinSock2 API |
|
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|
5621 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
|
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|
5622 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
|
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|
5623 |
|
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|
5624 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
|
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|
5625 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
|
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|
5626 BOOL os::WinSock2Dll::initialized = FALSE; |
|
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|
5627 |
|
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|
5628 void os::WinSock2Dll::initialize() { |
|
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|
5629 if (!initialized) { |
|
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|
5630 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
|
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|
5631 if (handle != NULL) { |
|
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|
5632 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
|
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|
5633 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
|
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|
5634 } |
|
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|
5635 initialized = TRUE; |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5636 } |
|
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|
5637 } |
|
b1cbb0907b36
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changeset
|
5638 |
|
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diff
changeset
|
5639 |
|
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diff
changeset
|
5640 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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|
5641 assert(initialized && _WSAStartup != NULL, |
|
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zgu
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|
5642 "WinSock2Available() not yet called"); |
|
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|
5643 return _WSAStartup(wVersionRequested, lpWSAData); |
|
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|
5644 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5645 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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diff
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|
5646 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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|
5647 assert(initialized && _gethostbyname != NULL, |
|
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|
5648 "WinSock2Available() not yet called"); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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|
5649 return _gethostbyname(name); |
|
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|
5650 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5651 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5652 BOOL os::WinSock2Dll::WinSock2Available() { |
|
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|
5653 if (!initialized) { |
|
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|
5654 initialize(); |
|
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|
5655 } |
|
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|
5656 return _WSAStartup != NULL && |
|
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|
5657 _gethostbyname != NULL; |
|
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|
5658 } |
|
b1cbb0907b36
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changeset
|
5659 |
|
b1cbb0907b36
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|
5660 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
|
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|
5661 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
|
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|
5662 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
|
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|
5663 |
|
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|
5664 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
|
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|
5665 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
|
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|
5666 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
|
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|
5667 BOOL os::Advapi32Dll::initialized = FALSE; |
|
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|
5668 |
|
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changeset
|
5669 void os::Advapi32Dll::initialize() { |
|
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|
5670 if (!initialized) { |
|
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|
5671 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
|
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|
5672 if (handle != NULL) { |
|
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|
5673 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
|
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|
5674 "AdjustTokenPrivileges"); |
|
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|
5675 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
|
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|
5676 "OpenProcessToken"); |
|
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|
5677 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
|
3834
279ef1916773
7065535: Mistyped function name that disabled UseLargePages on Windows
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3833
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|
5678 "LookupPrivilegeValueA"); |
|
3833
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|
5679 } |
|
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|
5680 initialized = TRUE; |
|
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|
5681 } |
|
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changeset
|
5682 } |
|
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parents:
3800
diff
changeset
|
5683 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5684 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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|
5685 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
|
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changeset
|
5686 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5687 assert(initialized && _AdjustTokenPrivileges != NULL, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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changeset
|
5688 "AdvapiAvailable() not yet called"); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5689 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5690 BufferLength, PreviousState, ReturnLength); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5691 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5692 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5693 BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5694 PHANDLE TokenHandle) { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
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diff
changeset
|
5695 assert(initialized && _OpenProcessToken != NULL, |
|
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zgu
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|
5696 "AdvapiAvailable() not yet called"); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5697 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
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zgu
parents:
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diff
changeset
|
5698 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5699 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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3800
diff
changeset
|
5700 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
diff
changeset
|
5701 assert(initialized && _LookupPrivilegeValue != NULL, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5702 "AdvapiAvailable() not yet called"); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5703 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5704 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5705 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5706 BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5707 if (!initialized) { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5708 initialize(); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
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diff
changeset
|
5709 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5710 return _AdjustTokenPrivileges != NULL && |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5711 _OpenProcessToken != NULL && |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5712 _LookupPrivilegeValue != NULL; |
|
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parents:
3800
diff
changeset
|
5713 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5714 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5715 #endif |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
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12018
diff
changeset
|
5716 |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
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12018
diff
changeset
|
5717 #ifndef PRODUCT |
|
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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changeset
|
5718 |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
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diff
changeset
|
5719 // test the code path in reserve_memory_special() that tries to allocate memory in a single |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
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|
5720 // contiguous memory block at a particular address. |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
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|
5721 // The test first tries to find a good approximate address to allocate at by using the same |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
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diff
changeset
|
5722 // method to allocate some memory at any address. The test then tries to allocate memory in |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
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|
5723 // the vicinity (not directly after it to avoid possible by-chance use of that location) |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5724 // This is of course only some dodgy assumption, there is no guarantee that the vicinity of |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
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diff
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|
5725 // the previously allocated memory is available for allocation. The only actual failure |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
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diff
changeset
|
5726 // that is reported is when the test tries to allocate at a particular location but gets a |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
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changeset
|
5727 // different valid one. A NULL return value at this point is not considered an error but may |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5728 // be legitimate. |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5729 // If -XX:+VerboseInternalVMTests is enabled, print some explanatory messages. |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5730 void TestReserveMemorySpecial_test() { |
|
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
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|
5731 if (!UseLargePages) { |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5732 if (VerboseInternalVMTests) { |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5733 gclog_or_tty->print("Skipping test because large pages are disabled"); |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5734 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5735 return; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5736 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5737 // save current value of globals |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5738 bool old_use_large_pages_individual_allocation = UseLargePagesIndividualAllocation; |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5739 bool old_use_numa_interleaving = UseNUMAInterleaving; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5740 |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5741 // set globals to make sure we hit the correct code path |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
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diff
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|
5742 UseLargePagesIndividualAllocation = UseNUMAInterleaving = false; |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5743 |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5744 // do an allocation at an address selected by the OS to get a good one. |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5745 const size_t large_allocation_size = os::large_page_size() * 4; |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5746 char* result = os::reserve_memory_special(large_allocation_size, os::large_page_size(), NULL, false); |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5747 if (result == NULL) { |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5748 if (VerboseInternalVMTests) { |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5749 gclog_or_tty->print("Failed to allocate control block with size "SIZE_FORMAT". Skipping remainder of test.", |
|
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8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5750 large_allocation_size); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5751 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5752 } else { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5753 os::release_memory_special(result, large_allocation_size); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5754 |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5755 // allocate another page within the recently allocated memory area which seems to be a good location. At least |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5756 // we managed to get it once. |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5757 const size_t expected_allocation_size = os::large_page_size(); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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|
5758 char* expected_location = result + os::large_page_size(); |
|
f7bc2ab5f659
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|
5759 char* actual_location = os::reserve_memory_special(expected_allocation_size, os::large_page_size(), expected_location, false); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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changeset
|
5760 if (actual_location == NULL) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5761 if (VerboseInternalVMTests) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5762 gclog_or_tty->print("Failed to allocate any memory at "PTR_FORMAT" size "SIZE_FORMAT". Skipping remainder of test.", |
|
f7bc2ab5f659
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changeset
|
5763 expected_location, large_allocation_size); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5764 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5765 } else { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5766 // release memory |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5767 os::release_memory_special(actual_location, expected_allocation_size); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
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|
5768 // only now check, after releasing any memory to avoid any leaks. |
|
f7bc2ab5f659
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diff
changeset
|
5769 assert(actual_location == expected_location, |
|
f7bc2ab5f659
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diff
changeset
|
5770 err_msg("Failed to allocate memory at requested location "PTR_FORMAT" of size "SIZE_FORMAT", is "PTR_FORMAT" instead", |
|
f7bc2ab5f659
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diff
changeset
|
5771 expected_location, expected_allocation_size, actual_location)); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5772 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5773 } |
|
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:
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diff
changeset
|
5775 // restore globals |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5776 UseLargePagesIndividualAllocation = old_use_large_pages_individual_allocation; |
|
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diff
changeset
|
5777 UseNUMAInterleaving = old_use_numa_interleaving; |
|
f7bc2ab5f659
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tschatzl
parents:
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diff
changeset
|
5778 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5779 #endif // PRODUCT |
|
f7bc2ab5f659
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diff
changeset
|
5780 |