Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.cpp @ 17716:cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set.
Reviewed-by: acorn, kvn
Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Wed, 26 Feb 2014 15:20:41 -0800 |
| parents | 0e6af9b390af |
| children | 98af1e198e73 |
| 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; |
|
9059
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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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8012260: ciReplay: Include PID into the name of replay data file
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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) { |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
changeset
|
1670 case 3051: st->print(" Windows NT 3.51"); break; |
|
6f17a7c9f8b4
6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents:
242
diff
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
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1869 NULL, |
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1870 errval, |
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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:
10405
diff
changeset
|
3216 int err = os::get_last_error(); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
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
dcubed
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
dcubed
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
dcubed
parents:
10405
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
dcubed
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
dcubed
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
dcubed
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
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
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
dcubed
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
parents:
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
parents:
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
parents:
196
diff
changeset
|
3344 |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
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
parents:
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
parents:
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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parents:
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diff
changeset
|
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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diff
changeset
|
3378 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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diff
changeset
|
3379 // Provide an answer for UMA systems |
|
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7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3380 ids[0] = 0; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3381 return 1; |
|
a6128a8ed624
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iveresov
parents:
3885
diff
changeset
|
3382 } else { |
|
a6128a8ed624
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3885
diff
changeset
|
3383 // check for size bigger than actual groups_num |
|
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7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3384 size = MIN2(size, numa_get_groups_num()); |
|
a6128a8ed624
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3885
diff
changeset
|
3385 for (int i = 0; i < (int)size; i++) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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diff
changeset
|
3386 ids[i] = numa_node_list_holder.get_node_list_entry(i); |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
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diff
changeset
|
3387 } |
|
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7086226: UseNUMA fails on old versions of windows
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3885
diff
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|
3388 return size; |
|
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diff
changeset
|
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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diff
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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 | |
|
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|
3499 // |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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diff
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|
3500 // Short sleep, direct OS call. |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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diff
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|
3501 // |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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diff
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|
3502 // ms = 0, means allow others (if any) to run. |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
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|
3503 // |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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diff
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|
3504 void os::naked_short_sleep(jlong ms) { |
|
0e6af9b390af
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12253
diff
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|
3505 assert(ms < 1000, "Un-interruptable sleep, short time use only"); |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
changeset
|
3506 Sleep(ms); |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
changeset
|
3507 } |
|
0e6af9b390af
8028280: ParkEvent leak when running modified runThese which only loads classes
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12253
diff
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|
3508 |
| 0 | 3509 // Sleep forever; naked call to OS-specific sleep; use with CAUTION |
| 3510 void os::infinite_sleep() { | |
| 3511 while (true) { // sleep forever ... | |
| 3512 Sleep(100000); // ... 100 seconds at a time | |
| 3513 } | |
| 3514 } | |
| 3515 | |
| 3516 typedef BOOL (WINAPI * STTSignature)(void) ; | |
| 3517 | |
| 3518 os::YieldResult os::NakedYield() { | |
| 3519 // Use either SwitchToThread() or Sleep(0) | |
| 3520 // Consider passing back the return value from SwitchToThread(). | |
|
3833
b1cbb0907b36
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diff
changeset
|
3521 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
|
b1cbb0907b36
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diff
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|
3522 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
| 0 | 3523 } else { |
|
3833
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3800
diff
changeset
|
3524 Sleep(0); |
| 0 | 3525 } |
| 3526 return os::YIELD_UNKNOWN ; | |
| 3527 } | |
| 3528 | |
| 3529 void os::yield() { os::NakedYield(); } | |
| 3530 | |
| 3531 void os::yield_all(int attempts) { | |
| 3532 // Yields to all threads, including threads with lower priorities | |
| 3533 Sleep(1); | |
| 3534 } | |
| 3535 | |
| 3536 // Win32 only gives you access to seven real priorities at a time, | |
| 3537 // so we compress Java's ten down to seven. It would be better | |
| 3538 // if we dynamically adjusted relative priorities. | |
| 3539 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
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4803
diff
changeset
|
3540 int os::java_to_os_priority[CriticalPriority + 1] = { |
| 0 | 3541 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3542 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3543 THREAD_PRIORITY_LOWEST, // 2 | |
| 3544 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3545 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3546 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3547 THREAD_PRIORITY_NORMAL, // 6 | |
| 3548 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3549 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
| 3550 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
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4803
diff
changeset
|
3551 THREAD_PRIORITY_HIGHEST, // 10 MaxPriority |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
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4803
diff
changeset
|
3552 THREAD_PRIORITY_HIGHEST // 11 CriticalPriority |
| 0 | 3553 }; |
| 3554 | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
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4803
diff
changeset
|
3555 int prio_policy1[CriticalPriority + 1] = { |
| 0 | 3556 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3557 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3558 THREAD_PRIORITY_LOWEST, // 2 | |
| 3559 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3560 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3561 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3562 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
| 3563 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3564 THREAD_PRIORITY_HIGHEST, // 8 | |
| 3565 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
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4803
diff
changeset
|
3566 THREAD_PRIORITY_TIME_CRITICAL, // 10 MaxPriority |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
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4803
diff
changeset
|
3567 THREAD_PRIORITY_TIME_CRITICAL // 11 CriticalPriority |
| 0 | 3568 }; |
| 3569 | |
| 3570 static int prio_init() { | |
| 3571 // If ThreadPriorityPolicy is 1, switch tables | |
| 3572 if (ThreadPriorityPolicy == 1) { | |
| 3573 int i; | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
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4803
diff
changeset
|
3574 for (i = 0; i < CriticalPriority + 1; i++) { |
| 0 | 3575 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3576 } | |
| 3577 } | |
|
4854
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
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parents:
4803
diff
changeset
|
3578 if (UseCriticalJavaThreadPriority) { |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
phh
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4803
diff
changeset
|
3579 os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority] ; |
|
de268c8a8075
7082553: Interpret Thread.setPriority(Thread.MAX_PRIORITY) to mean FX60 on Solaris 10 and 11
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diff
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|
3580 } |
| 0 | 3581 return 0; |
| 3582 } | |
| 3583 | |
| 3584 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
| 3585 if (!UseThreadPriorities) return OS_OK; | |
| 3586 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
| 3587 return ret ? OS_OK : OS_ERR; | |
| 3588 } | |
| 3589 | |
| 3590 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
| 3591 if ( !UseThreadPriorities ) { | |
| 3592 *priority_ptr = java_to_os_priority[NormPriority]; | |
| 3593 return OS_OK; | |
| 3594 } | |
| 3595 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
| 3596 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
| 3597 assert(false, "GetThreadPriority failed"); | |
| 3598 return OS_ERR; | |
| 3599 } | |
| 3600 *priority_ptr = os_prio; | |
| 3601 return OS_OK; | |
| 3602 } | |
| 3603 | |
| 3604 | |
| 3605 // Hint to the underlying OS that a task switch would not be good. | |
| 3606 // Void return because it's a hint and can fail. | |
| 3607 void os::hint_no_preempt() {} | |
| 3608 | |
| 3609 void os::interrupt(Thread* thread) { | |
| 3610 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3611 "possibility of dangling Thread pointer"); | |
| 3612 | |
| 3613 OSThread* osthread = thread->osthread(); | |
| 3614 osthread->set_interrupted(true); | |
| 3615 // More than one thread can get here with the same value of osthread, | |
| 3616 // resulting in multiple notifications. We do, however, want the store | |
| 3617 // to interrupted() to be visible to other threads before we post | |
| 3618 // the interrupt event. | |
| 3619 OrderAccess::release(); | |
| 3620 SetEvent(osthread->interrupt_event()); | |
| 3621 // For JSR166: unpark after setting status | |
| 3622 if (thread->is_Java_thread()) | |
| 3623 ((JavaThread*)thread)->parker()->unpark(); | |
| 3624 | |
| 3625 ParkEvent * ev = thread->_ParkEvent ; | |
| 3626 if (ev != NULL) ev->unpark() ; | |
| 3627 | |
| 3628 } | |
| 3629 | |
| 3630 | |
| 3631 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 3632 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3633 "possibility of dangling Thread pointer"); | |
| 3634 | |
| 3635 OSThread* osthread = thread->osthread(); | |
|
2386
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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2306
diff
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|
3636 // 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
|
3637 // 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
changeset
|
3638 // we only clear the interrupt state, and reset the interrupt event, |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
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2306
diff
changeset
|
3639 // if we are going to report that we were indeed interrupted - else |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
dholmes
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2306
diff
changeset
|
3640 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
|
17716
cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
minqi
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17706
diff
changeset
|
3641 // depending on the timing. By checking thread interrupt event to see |
|
cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
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17706
diff
changeset
|
3642 // if the thread gets real interrupt thus prevent spurious wakeup. |
|
cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
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17706
diff
changeset
|
3643 bool interrupted = osthread->interrupted() && (WaitForSingleObject(osthread->interrupt_event(), 0) == WAIT_OBJECT_0); |
|
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diff
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|
3644 if (interrupted && clear_interrupted) { |
| 0 | 3645 osthread->set_interrupted(false); |
| 3646 ResetEvent(osthread->interrupt_event()); | |
| 3647 } // Otherwise leave the interrupted state alone | |
| 3648 | |
| 3649 return interrupted; | |
| 3650 } | |
| 3651 | |
| 3652 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
| 3653 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 3654 CONTEXT context; | |
| 3655 context.ContextFlags = CONTEXT_CONTROL; | |
| 3656 HANDLE handle = thread->osthread()->thread_handle(); | |
| 3657 #ifdef _M_IA64 | |
| 3658 assert(0, "Fix get_thread_pc"); | |
| 3659 return ExtendedPC(NULL); | |
| 3660 #else | |
| 3661 if (GetThreadContext(handle, &context)) { | |
| 3662 #ifdef _M_AMD64 | |
| 3663 return ExtendedPC((address) context.Rip); | |
| 3664 #else | |
| 3665 return ExtendedPC((address) context.Eip); | |
| 3666 #endif | |
| 3667 } else { | |
| 3668 return ExtendedPC(NULL); | |
| 3669 } | |
| 3670 #endif | |
| 3671 } | |
| 3672 | |
| 3673 // GetCurrentThreadId() returns DWORD | |
| 3674 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
| 3675 | |
| 3676 static int _initial_pid = 0; | |
| 3677 | |
| 3678 int os::current_process_id() | |
| 3679 { | |
| 3680 return (_initial_pid ? _initial_pid : _getpid()); | |
| 3681 } | |
| 3682 | |
| 3683 int os::win32::_vm_page_size = 0; | |
| 3684 int os::win32::_vm_allocation_granularity = 0; | |
| 3685 int os::win32::_processor_type = 0; | |
| 3686 // Processor level is not available on non-NT systems, use vm_version instead | |
| 3687 int os::win32::_processor_level = 0; | |
| 3688 julong os::win32::_physical_memory = 0; | |
| 3689 size_t os::win32::_default_stack_size = 0; | |
| 3690 | |
| 3691 intx os::win32::_os_thread_limit = 0; | |
| 3692 volatile intx os::win32::_os_thread_count = 0; | |
| 3693 | |
| 3694 bool os::win32::_is_nt = false; | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
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356
diff
changeset
|
3695 bool os::win32::_is_windows_2003 = false; |
|
2204
63d374c54045
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ctornqvi
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2130
diff
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|
3696 bool os::win32::_is_windows_server = false; |
| 0 | 3697 |
| 3698 void os::win32::initialize_system_info() { | |
| 3699 SYSTEM_INFO si; | |
| 3700 GetSystemInfo(&si); | |
| 3701 _vm_page_size = si.dwPageSize; | |
| 3702 _vm_allocation_granularity = si.dwAllocationGranularity; | |
| 3703 _processor_type = si.dwProcessorType; | |
| 3704 _processor_level = si.wProcessorLevel; | |
|
1123
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962
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|
3705 set_processor_count(si.dwNumberOfProcessors); |
| 0 | 3706 |
|
877
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
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717
diff
changeset
|
3707 MEMORYSTATUSEX ms; |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
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changeset
|
3708 ms.dwLength = sizeof(ms); |
|
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|
3709 |
| 0 | 3710 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
| 3711 // dwMemoryLoad (% of memory in use) | |
|
877
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|
3712 GlobalMemoryStatusEx(&ms); |
|
8c79517a9300
6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
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parents:
717
diff
changeset
|
3713 _physical_memory = ms.ullTotalPhys; |
| 0 | 3714 |
|
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
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2130
diff
changeset
|
3715 OSVERSIONINFOEX oi; |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
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2130
diff
changeset
|
3716 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
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2130
diff
changeset
|
3717 GetVersionEx((OSVERSIONINFO*)&oi); |
| 0 | 3718 switch(oi.dwPlatformId) { |
| 3719 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
|
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|
3720 case VER_PLATFORM_WIN32_NT: |
|
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|
3721 _is_nt = true; |
|
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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|
3722 { |
|
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|
3723 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
|
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|
3724 if (os_vers == 5002) { |
|
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|
3725 _is_windows_2003 = true; |
|
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|
3726 } |
|
2204
63d374c54045
7014918: Improve core/minidump handling in Hotspot
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changeset
|
3727 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
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diff
changeset
|
3728 oi.wProductType == VER_NT_SERVER) { |
|
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|
3729 _is_windows_server = true; |
|
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|
3730 } |
|
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|
3731 } |
|
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|
3732 break; |
| 0 | 3733 default: fatal("Unknown platform"); |
| 3734 } | |
| 3735 | |
| 3736 _default_stack_size = os::current_stack_size(); | |
| 3737 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
| 3738 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
| 3739 "stack size not a multiple of page size"); | |
| 3740 | |
| 3741 initialize_performance_counter(); | |
| 3742 | |
| 3743 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
| 3744 // known to deadlock the system, if the VM issues to thread operations with | |
| 3745 // a too high frequency, e.g., such as changing the priorities. | |
| 3746 // The 6000 seems to work well - no deadlocks has been notices on the test | |
| 3747 // programs that we have seen experience this problem. | |
| 3748 if (!os::win32::is_nt()) { | |
| 3749 StarvationMonitorInterval = 6000; | |
| 3750 } | |
| 3751 } | |
| 3752 | |
| 3753 | |
|
3833
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diff
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|
3754 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
|
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|
3755 char path[MAX_PATH]; |
|
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|
3756 DWORD size; |
|
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|
3757 DWORD pathLen = (DWORD)sizeof(path); |
|
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|
3758 HINSTANCE result = NULL; |
|
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|
3759 |
|
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diff
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|
3760 // only allow library name without path component |
|
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|
3761 assert(strchr(name, '\\') == NULL, "path not allowed"); |
|
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|
3762 assert(strchr(name, ':') == NULL, "path not allowed"); |
|
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|
3763 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
|
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|
3764 jio_snprintf(ebuf, ebuflen, |
|
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diff
changeset
|
3765 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
|
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diff
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|
3766 return NULL; |
|
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diff
changeset
|
3767 } |
|
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diff
changeset
|
3768 |
|
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diff
changeset
|
3769 // search system directory |
|
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diff
changeset
|
3770 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
|
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diff
changeset
|
3771 strcat(path, "\\"); |
|
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diff
changeset
|
3772 strcat(path, name); |
|
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diff
changeset
|
3773 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
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diff
changeset
|
3774 return result; |
|
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diff
changeset
|
3775 } |
|
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diff
changeset
|
3776 } |
|
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diff
changeset
|
3777 |
|
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zgu
parents:
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diff
changeset
|
3778 // try Windows directory |
|
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diff
changeset
|
3779 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
|
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zgu
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diff
changeset
|
3780 strcat(path, "\\"); |
|
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zgu
parents:
3800
diff
changeset
|
3781 strcat(path, name); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
3782 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
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parents:
3800
diff
changeset
|
3783 return result; |
|
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zgu
parents:
3800
diff
changeset
|
3784 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3785 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3786 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3787 jio_snprintf(ebuf, ebuflen, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3788 "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
|
3789 return NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3790 } |
|
b1cbb0907b36
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diff
changeset
|
3791 |
| 0 | 3792 void os::win32::setmode_streams() { |
| 3793 _setmode(_fileno(stdin), _O_BINARY); | |
| 3794 _setmode(_fileno(stdout), _O_BINARY); | |
| 3795 _setmode(_fileno(stderr), _O_BINARY); | |
| 3796 } | |
| 3797 | |
| 3798 | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
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2205
diff
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|
3799 bool os::is_debugger_attached() { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3800 return IsDebuggerPresent() ? true : false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3801 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3802 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2205
diff
changeset
|
3803 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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2205
diff
changeset
|
3804 void os::wait_for_keypress_at_exit(void) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3805 if (PauseAtExit) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3806 fprintf(stderr, "Press any key to continue...\n"); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3807 fgetc(stdin); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3808 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3809 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3810 |
|
da091bb67459
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2205
diff
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|
3811 |
| 0 | 3812 int os::message_box(const char* title, const char* message) { |
| 3813 int result = MessageBox(NULL, message, title, | |
| 3814 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
| 3815 return result == IDYES; | |
| 3816 } | |
| 3817 | |
| 3818 int os::allocate_thread_local_storage() { | |
| 3819 return TlsAlloc(); | |
| 3820 } | |
| 3821 | |
| 3822 | |
| 3823 void os::free_thread_local_storage(int index) { | |
| 3824 TlsFree(index); | |
| 3825 } | |
| 3826 | |
| 3827 | |
| 3828 void os::thread_local_storage_at_put(int index, void* value) { | |
| 3829 TlsSetValue(index, value); | |
| 3830 assert(thread_local_storage_at(index) == value, "Just checking"); | |
| 3831 } | |
| 3832 | |
| 3833 | |
| 3834 void* os::thread_local_storage_at(int index) { | |
| 3835 return TlsGetValue(index); | |
| 3836 } | |
| 3837 | |
| 3838 | |
| 3839 #ifndef PRODUCT | |
| 3840 #ifndef _WIN64 | |
| 3841 // Helpers to check whether NX protection is enabled | |
| 3842 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
| 3843 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 3844 pex->ExceptionRecord->NumberParameters > 0 && | |
| 3845 pex->ExceptionRecord->ExceptionInformation[0] == | |
| 3846 EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 3847 return EXCEPTION_EXECUTE_HANDLER; | |
| 3848 } | |
| 3849 return EXCEPTION_CONTINUE_SEARCH; | |
| 3850 } | |
| 3851 | |
| 3852 void nx_check_protection() { | |
| 3853 // If NX is enabled we'll get an exception calling into code on the stack | |
| 3854 char code[] = { (char)0xC3 }; // ret | |
| 3855 void *code_ptr = (void *)code; | |
| 3856 __try { | |
| 3857 __asm call code_ptr | |
| 3858 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
| 3859 tty->print_raw_cr("NX protection detected."); | |
| 3860 } | |
| 3861 } | |
| 3862 #endif // _WIN64 | |
| 3863 #endif // PRODUCT | |
| 3864 | |
| 3865 // this is called _before_ the global arguments have been parsed | |
| 3866 void os::init(void) { | |
| 3867 _initial_pid = _getpid(); | |
| 3868 | |
| 3869 init_random(1234567); | |
| 3870 | |
| 3871 win32::initialize_system_info(); | |
| 3872 win32::setmode_streams(); | |
| 3873 init_page_sizes((size_t) win32::vm_page_size()); | |
| 3874 | |
| 3875 // For better scalability on MP systems (must be called after initialize_system_info) | |
| 3876 #ifndef PRODUCT | |
| 3877 if (is_MP()) { | |
| 3878 NoYieldsInMicrolock = true; | |
| 3879 } | |
| 3880 #endif | |
|
389
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|
3881 // This may be overridden later when argument processing is done. |
|
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|
3882 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
|
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diff
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|
3883 os::win32::is_windows_2003()); |
|
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|
3884 |
| 0 | 3885 // Initialize main_process and main_thread |
| 3886 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
|
389
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|
3887 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
| 0 | 3888 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
| 3889 fatal("DuplicateHandle failed\n"); | |
| 3890 } | |
| 3891 main_thread_id = (int) GetCurrentThreadId(); | |
| 3892 } | |
| 3893 | |
| 3894 // To install functions for atexit processing | |
| 3895 extern "C" { | |
| 3896 static void perfMemory_exit_helper() { | |
| 3897 perfMemory_exit(); | |
| 3898 } | |
| 3899 } | |
| 3900 | |
| 8872 | 3901 static jint initSock(); |
| 3902 | |
| 0 | 3903 // this is called _after_ the global arguments have been parsed |
| 3904 jint os::init_2(void) { | |
| 3905 // Allocate a single page and mark it as readable for safepoint polling | |
| 3906 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
| 3907 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
| 3908 | |
| 3909 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
| 3910 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
| 3911 | |
| 3912 os::set_polling_page( polling_page ); | |
| 3913 | |
| 3914 #ifndef PRODUCT | |
| 3915 if( Verbose && PrintMiscellaneous ) | |
| 3916 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 3917 #endif | |
| 3918 | |
| 3919 if (!UseMembar) { | |
| 656 | 3920 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
| 0 | 3921 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
| 3922 | |
| 656 | 3923 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
| 0 | 3924 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
| 3925 | |
| 3926 os::set_memory_serialize_page( mem_serialize_page ); | |
| 3927 | |
| 3928 #ifndef PRODUCT | |
| 3929 if(Verbose && PrintMiscellaneous) | |
| 3930 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 3931 #endif | |
| 3885 | 3932 } |
| 0 | 3933 |
| 3934 // Setup Windows Exceptions | |
| 3935 | |
| 3936 // for debugging float code generation bugs | |
| 3937 if (ForceFloatExceptions) { | |
| 3938 #ifndef _WIN64 | |
| 3939 static long fp_control_word = 0; | |
| 3940 __asm { fstcw fp_control_word } | |
| 3941 // see Intel PPro Manual, Vol. 2, p 7-16 | |
| 3942 const long precision = 0x20; | |
| 3943 const long underflow = 0x10; | |
| 3944 const long overflow = 0x08; | |
| 3945 const long zero_div = 0x04; | |
| 3946 const long denorm = 0x02; | |
| 3947 const long invalid = 0x01; | |
| 3948 fp_control_word |= invalid; | |
| 3949 __asm { fldcw fp_control_word } | |
| 3950 #endif | |
| 3951 } | |
| 3952 | |
| 3953 // If stack_commit_size is 0, windows will reserve the default size, | |
| 3954 // but only commit a small portion of it. | |
| 3955 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
| 3956 size_t default_reserve_size = os::win32::default_stack_size(); | |
| 3957 size_t actual_reserve_size = stack_commit_size; | |
| 3958 if (stack_commit_size < default_reserve_size) { | |
| 3959 // If stack_commit_size == 0, we want this too | |
| 3960 actual_reserve_size = default_reserve_size; | |
| 3961 } | |
| 3962 | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3963 // Check minimum allowable stack size for thread creation and to initialize |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3964 // the java system classes, including StackOverflowError - depends on page |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3965 // size. Add a page for compiler2 recursion in main thread. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3966 // 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
|
3967 // class initialization depending on 32 or 64 bit VM. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3968 size_t min_stack_allowed = |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3969 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3970 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3971 if (actual_reserve_size < min_stack_allowed) { |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3972 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
|
3973 "Specify at least %dk", |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3974 min_stack_allowed / K); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3975 return JNI_ERR; |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3976 } |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3977 |
| 0 | 3978 JavaThread::set_stack_size_at_create(stack_commit_size); |
| 3979 | |
| 3980 // Calculate theoretical max. size of Threads to guard gainst artifical | |
| 3981 // out-of-memory situations, where all available address-space has been | |
| 3982 // reserved by thread stacks. | |
| 3983 assert(actual_reserve_size != 0, "Must have a stack"); | |
| 3984 | |
| 3985 // Calculate the thread limit when we should start doing Virtual Memory | |
| 3986 // banging. Currently when the threads will have used all but 200Mb of space. | |
| 3987 // | |
| 3988 // TODO: consider performing a similar calculation for commit size instead | |
| 3989 // as reserve size, since on a 64-bit platform we'll run into that more | |
| 3990 // often than running out of virtual memory space. We can use the | |
| 3991 // 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
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79
diff
changeset
|
3992 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
| 0 | 3993 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
| 3994 | |
| 3995 // at exit methods are called in the reverse order of their registration. | |
| 3996 // there is no limit to the number of functions registered. atexit does | |
| 3997 // not set errno. | |
| 3998 | |
| 3999 if (PerfAllowAtExitRegistration) { | |
| 4000 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 4001 // atexit functions can be delayed until process exit time, which | |
| 4002 // can be problematic for embedded VM situations. Embedded VMs should | |
| 4003 // call DestroyJavaVM() to assure that VM resources are released. | |
| 4004 | |
| 4005 // note: perfMemory_exit_helper atexit function may be removed in | |
| 4006 // the future if the appropriate cleanup code can be added to the | |
| 4007 // VM_Exit VMOperation's doit method. | |
| 4008 if (atexit(perfMemory_exit_helper) != 0) { | |
| 4009 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
| 4010 } | |
| 4011 } | |
| 4012 | |
| 4013 #ifndef _WIN64 | |
| 4014 // Print something if NX is enabled (win32 on AMD64) | |
| 4015 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
| 4016 #endif | |
| 4017 | |
| 4018 // initialize thread priority policy | |
| 4019 prio_init(); | |
| 4020 | |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4021 if (UseNUMA && !ForceNUMA) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4022 UseNUMA = false; // We don't fully support this yet |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4023 } |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4024 |
| 3885 | 4025 if (UseNUMAInterleaving) { |
| 4026 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
| 4027 bool success = numa_interleaving_init(); | |
| 4028 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
|
4029 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
4030 |
| 8872 | 4031 if (initSock() != JNI_OK) { |
| 4032 return JNI_ERR; | |
| 4033 } | |
| 4034 | |
| 0 | 4035 return JNI_OK; |
| 4036 } | |
| 4037 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4038 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4039 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4040 } |
| 0 | 4041 |
| 4042 // Mark the polling page as unreadable | |
| 4043 void os::make_polling_page_unreadable(void) { | |
| 4044 DWORD old_status; | |
| 4045 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
| 4046 fatal("Could not disable polling page"); | |
| 4047 }; | |
| 4048 | |
| 4049 // Mark the polling page as readable | |
| 4050 void os::make_polling_page_readable(void) { | |
| 4051 DWORD old_status; | |
| 4052 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
| 4053 fatal("Could not enable polling page"); | |
| 4054 }; | |
| 4055 | |
| 4056 | |
| 4057 int os::stat(const char *path, struct stat *sbuf) { | |
| 4058 char pathbuf[MAX_PATH]; | |
| 4059 if (strlen(path) > MAX_PATH - 1) { | |
| 4060 errno = ENAMETOOLONG; | |
| 4061 return -1; | |
| 4062 } | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4063 os::native_path(strcpy(pathbuf, path)); |
| 0 | 4064 int ret = ::stat(pathbuf, sbuf); |
| 4065 if (sbuf != NULL && UseUTCFileTimestamp) { | |
| 4066 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
| 4067 // the system timezone and so can return different values for the | |
| 4068 // same file if/when daylight savings time changes. This adjustment | |
| 4069 // makes sure the same timestamp is returned regardless of the TZ. | |
| 4070 // | |
| 4071 // See: | |
| 4072 // http://msdn.microsoft.com/library/ | |
| 4073 // default.asp?url=/library/en-us/sysinfo/base/ | |
| 4074 // time_zone_information_str.asp | |
| 4075 // and | |
| 4076 // http://msdn.microsoft.com/library/default.asp?url= | |
| 4077 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
| 4078 // | |
| 4079 // NOTE: there is a insidious bug here: If the timezone is changed | |
| 4080 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
| 4081 // the adjustment we do here will be wrong and we'll return the wrong | |
| 4082 // value (which will likely end up creating an invalid class data | |
| 4083 // archive). Absent a better API for this, or some time zone locking | |
| 4084 // mechanism, we'll have to live with this risk. | |
| 4085 TIME_ZONE_INFORMATION tz; | |
| 4086 DWORD tzid = GetTimeZoneInformation(&tz); | |
| 4087 int daylightBias = | |
| 4088 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
| 4089 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
| 4090 } | |
| 4091 return ret; | |
| 4092 } | |
| 4093 | |
| 4094 | |
| 4095 #define FT2INT64(ft) \ | |
| 4096 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
| 4097 | |
| 4098 | |
| 4099 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 4100 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 4101 // of a thread. | |
| 4102 // | |
| 4103 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
| 4104 // the fast estimate available on the platform. | |
| 4105 | |
| 4106 // current_thread_cpu_time() is not optimized for Windows yet | |
| 4107 jlong os::current_thread_cpu_time() { | |
| 4108 // return user + sys since the cost is the same | |
| 4109 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
| 4110 } | |
| 4111 | |
| 4112 jlong os::thread_cpu_time(Thread* thread) { | |
| 4113 // consistent with what current_thread_cpu_time() returns. | |
| 4114 return os::thread_cpu_time(thread, true /* user+sys */); | |
| 4115 } | |
| 4116 | |
| 4117 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 4118 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 4119 } | |
| 4120 | |
| 4121 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
| 4122 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
| 4123 // If this function changes, os::is_thread_cpu_time_supported() should too | |
| 4124 if (os::win32::is_nt()) { | |
| 4125 FILETIME CreationTime; | |
| 4126 FILETIME ExitTime; | |
| 4127 FILETIME KernelTime; | |
| 4128 FILETIME UserTime; | |
| 4129 | |
| 4130 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
| 4131 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 4132 return -1; | |
| 4133 else | |
| 4134 if (user_sys_cpu_time) { | |
| 4135 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
| 4136 } else { | |
| 4137 return FT2INT64(UserTime) * 100; | |
| 4138 } | |
| 4139 } else { | |
| 4140 return (jlong) timeGetTime() * 1000000; | |
| 4141 } | |
| 4142 } | |
| 4143 | |
| 4144 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 4145 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 4146 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 4147 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 4148 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 4149 } | |
| 4150 | |
| 4151 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 4152 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 4153 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 4154 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 4155 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 4156 } | |
| 4157 | |
| 4158 bool os::is_thread_cpu_time_supported() { | |
| 4159 // see os::thread_cpu_time | |
| 4160 if (os::win32::is_nt()) { | |
| 4161 FILETIME CreationTime; | |
| 4162 FILETIME ExitTime; | |
| 4163 FILETIME KernelTime; | |
| 4164 FILETIME UserTime; | |
| 4165 | |
| 4166 if ( GetThreadTimes(GetCurrentThread(), | |
| 4167 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 4168 return false; | |
| 4169 else | |
| 4170 return true; | |
| 4171 } else { | |
| 4172 return false; | |
| 4173 } | |
| 4174 } | |
| 4175 | |
| 4176 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
| 4177 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
| 4178 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
| 4179 // If we wanted to implement loadavg on Windows, we have a few options: | |
| 4180 // | |
| 4181 // a) Query CPU usage and run queue length and "fake" an answer by | |
| 4182 // returning the CPU usage if it's under 100%, and the run queue | |
| 4183 // length otherwise. It turns out that querying is pretty slow | |
| 4184 // on Windows, on the order of 200 microseconds on a fast machine. | |
| 4185 // Note that on the Windows the CPU usage value is the % usage | |
| 4186 // since the last time the API was called (and the first call | |
| 4187 // returns 100%), so we'd have to deal with that as well. | |
| 4188 // | |
| 4189 // b) Sample the "fake" answer using a sampling thread and store | |
| 4190 // the answer in a global variable. The call to loadavg would | |
| 4191 // just return the value of the global, avoiding the slow query. | |
| 4192 // | |
| 4193 // c) Sample a better answer using exponential decay to smooth the | |
| 4194 // value. This is basically the algorithm used by UNIX kernels. | |
| 4195 // | |
| 4196 // Note that sampling thread starvation could affect both (b) and (c). | |
| 4197 int os::loadavg(double loadavg[], int nelem) { | |
| 4198 return -1; | |
| 4199 } | |
| 4200 | |
| 4201 | |
| 4202 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
| 4203 bool os::dont_yield() { | |
| 4204 return DontYieldALot; | |
| 4205 } | |
| 4206 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4207 // 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
|
4208 // 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
|
4209 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4210 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
|
4211 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4212 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4213 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4214 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4215 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4216 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4217 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4218 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
|
4219 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4220 |
|
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4221 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
|
4222 return ::_fdopen(fd, mode); |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4223 } |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4224 |
| 0 | 4225 // Is a (classpath) directory empty? |
| 4226 bool os::dir_is_empty(const char* path) { | |
| 4227 WIN32_FIND_DATA fd; | |
| 4228 HANDLE f = FindFirstFile(path, &fd); | |
| 4229 if (f == INVALID_HANDLE_VALUE) { | |
| 4230 return true; | |
| 4231 } | |
| 4232 FindClose(f); | |
| 4233 return false; | |
| 4234 } | |
| 4235 | |
| 4236 // create binary file, rewriting existing file if required | |
| 4237 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 4238 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
| 4239 if (!rewrite_existing) { | |
| 4240 oflags |= _O_EXCL; | |
| 4241 } | |
| 4242 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
| 4243 } | |
| 4244 | |
| 4245 // return current position of file pointer | |
| 4246 jlong os::current_file_offset(int fd) { | |
| 4247 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
| 4248 } | |
| 4249 | |
| 4250 // move file pointer to the specified offset | |
| 4251 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 4252 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
| 4253 } | |
| 4254 | |
| 4255 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4256 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
|
4257 return (jlong) ::_lseeki64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4258 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4259 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4260 // 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
|
4261 // from src/windows/hpi/src/path_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4262 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4263 /* 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
|
4264 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
|
4265 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
|
4266 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
|
4267 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
|
4268 treat double-byte lead characters correctly. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4269 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4270 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
|
4271 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
|
4272 succeeds. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4273 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4274 char *src = path, *dst = path, *end = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4275 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
|
4276 point to the colon following the drive |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4277 letter */ |
|
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 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4280 assert(((!::IsDBCSLeadByte('/')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4281 && (!::IsDBCSLeadByte('\\')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4282 && (!::IsDBCSLeadByte(':'))), |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4283 "Illegal lead byte"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4284 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4285 /* Check for leading separators */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4286 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4287 while (isfilesep(*src)) { |
|
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 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4290 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4291 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4292 /* 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
|
4293 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
|
4294 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
|
4295 "/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
|
4296 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4297 colon = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4298 *dst++ = ':'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4299 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4300 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4301 src = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4302 if (isfilesep(src[0]) && isfilesep(src[1])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4303 /* 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
|
4304 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
|
4305 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
|
4306 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
|
4307 src = dst = path + 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4308 path[0] = '\\'; /* Force first separator to '\\' */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4309 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4310 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4311 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4312 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4313 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4314 /* 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
|
4315 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
|
4316 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
|
4317 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
|
4318 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4319 while (*src != '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4320 if (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4321 *dst++ = '\\'; src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4322 while (isfilesep(*src)) src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4323 if (*src == '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4324 /* Check for trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4325 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4326 if (colon == dst - 2) break; /* "z:\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4327 if (dst == path + 1) break; /* "\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4328 if (dst == path + 2 && isfilesep(path[0])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4329 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4330 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
|
4331 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
|
4332 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
|
4333 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
|
4334 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
|
4335 directory of the current drive. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4336 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4337 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4338 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
|
4339 remove trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4340 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4341 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4342 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4343 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4344 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4345 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4346 if (*src) *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4347 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4348 } else { /* Copy a single-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4349 char c = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4350 *dst++ = c; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4351 /* Space is not a legal ending character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4352 if (c != ' ') end = dst; |
|
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 } |
|
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 *end = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4358 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4359 /* 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
|
4360 if (colon == dst - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4361 path[2] = '.'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4362 path[3] = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4363 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4364 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4365 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4366 } |
|
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 // 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
|
4369 // 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
|
4370 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4371 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4372 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4373 long high = (long)(length >> 32); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4374 DWORD ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4375 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4376 if (h == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4377 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4378 } |
|
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 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4381 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4382 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4383 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4384 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4385 if (::SetEndOfFile(h) == FALSE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4386 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4387 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4388 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4389 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4390 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4391 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4392 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4393 // 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
|
4394 // 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
|
4395 // 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
|
4396 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4397 int os::fsync(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4398 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
|
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 if ( (!::FlushFileBuffers(handle)) && |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4401 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4402 /* from winerror.h */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4403 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4404 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4405 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4406 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4407 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4408 static int nonSeekAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4409 static int stdinAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4410 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4411 #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
|
4412 #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
|
4413 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4414 // 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
|
4415 // 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
|
4416 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4417 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4418 jlong cur, end; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4419 struct _stati64 stbuf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4420 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4421 if (::_fstati64(fd, &stbuf64) >= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4422 int mode = stbuf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4423 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4424 int ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4425 long lpbytes; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4426 if (fd == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4427 ret = stdinAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4428 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4429 ret = nonSeekAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4430 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4431 (*bytes) = (jlong)(lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4432 return ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4433 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4434 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4435 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4436 } 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
|
4437 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4438 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4439 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4440 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4441 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4442 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4443 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4444 return FALSE; |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4448 // 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
|
4449 // 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
|
4450 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4451 static int nonSeekAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4452 /* 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
|
4453 * (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
|
4454 * connected to an exec'd process). |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4455 * Standard Input is a special case. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4456 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4457 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4458 HANDLE han; |
|
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 ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4464 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
|
4465 /* 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
|
4466 * 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
|
4467 * 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
|
4468 * The only alternative is to raise an Exception, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4469 * which isn't really warranted. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4470 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4471 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4472 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4473 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4474 *pbytes = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4475 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4476 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4477 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4478 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4479 #define MAX_INPUT_EVENTS 2000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4480 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4481 // 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
|
4482 // 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
|
4483 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4484 static int stdinAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4485 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4486 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
|
4487 DWORD numEvents = 0; /* Number of events in buffer */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4488 DWORD i = 0; /* Loop index */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4489 DWORD curLength = 0; /* Position marker */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4490 DWORD actualLength = 0; /* Number of bytes readable */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4491 BOOL error = FALSE; /* Error holder */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4492 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
|
4493 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4494 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
|
4495 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4496 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4497 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4498 /* 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
|
4499 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4500 if (error == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4501 return nonSeekAvailable(fd, pbytes); |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4504 /* 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
|
4505 if (numEvents > MAX_INPUT_EVENTS) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4506 numEvents = MAX_INPUT_EVENTS; |
|
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 |
| 6197 | 4509 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
|
4510 if (lpBuffer == NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4511 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4512 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4513 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4514 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4515 if (error == 0) { |
| 6197 | 4516 os::free(lpBuffer, mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
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diff
changeset
|
4517 return FALSE; |
|
828eafbd85cc
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|
4518 } |
|
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diff
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|
4519 |
|
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|
4520 /* Examine input records for the number of bytes available */ |
|
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diff
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|
4521 for(i=0; i<numEvents; i++) { |
|
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|
4522 if (lpBuffer[i].EventType == KEY_EVENT) { |
|
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|
4523 |
|
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diff
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|
4524 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
|
828eafbd85cc
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diff
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|
4525 &(lpBuffer[i].Event); |
|
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changeset
|
4526 if (keyRecord->bKeyDown == TRUE) { |
|
828eafbd85cc
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diff
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|
4527 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
|
828eafbd85cc
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diff
changeset
|
4528 curLength++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
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|
4529 if (*keyPressed == '\r') { |
|
828eafbd85cc
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ikrylov
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diff
changeset
|
4530 actualLength = curLength; |
|
828eafbd85cc
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diff
changeset
|
4531 } |
|
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diff
changeset
|
4532 } |
|
828eafbd85cc
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diff
changeset
|
4533 } |
|
828eafbd85cc
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diff
changeset
|
4534 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4535 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
4536 if(lpBuffer != NULL) { |
| 6197 | 4537 os::free(lpBuffer, mtInternal); |
|
1980
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|
4538 } |
|
828eafbd85cc
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diff
changeset
|
4539 |
|
828eafbd85cc
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diff
changeset
|
4540 *pbytes = (long) actualLength; |
|
828eafbd85cc
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diff
changeset
|
4541 return TRUE; |
|
828eafbd85cc
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1972
diff
changeset
|
4542 } |
|
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diff
changeset
|
4543 |
| 0 | 4544 // Map a block of memory. |
| 6197 | 4545 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4546 char *addr, size_t bytes, bool read_only, |
| 4547 bool allow_exec) { | |
| 4548 HANDLE hFile; | |
| 4549 char* base; | |
| 4550 | |
| 4551 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
| 4552 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
| 4553 if (hFile == NULL) { | |
| 4554 if (PrintMiscellaneous && Verbose) { | |
| 4555 DWORD err = GetLastError(); | |
|
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7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
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7458
diff
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|
4556 tty->print_cr("CreateFile() failed: GetLastError->%ld.", err); |
| 0 | 4557 } |
| 4558 return NULL; | |
| 4559 } | |
| 4560 | |
| 4561 if (allow_exec) { | |
| 4562 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
| 4563 // unless it comes from a PE image (which the shared archive is not.) | |
| 4564 // Even VirtualProtect refuses to give execute access to mapped memory | |
| 4565 // that was not previously executable. | |
| 4566 // | |
| 4567 // Instead, stick the executable region in anonymous memory. Yuck. | |
| 4568 // Penalty is that ~4 pages will not be shareable - in the future | |
| 4569 // we might consider DLLizing the shared archive with a proper PE | |
| 4570 // header so that mapping executable + sharing is possible. | |
| 4571 | |
| 4572 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
| 4573 PAGE_READWRITE); | |
| 4574 if (base == NULL) { | |
| 4575 if (PrintMiscellaneous && Verbose) { | |
| 4576 DWORD err = GetLastError(); | |
| 4577 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
| 4578 } | |
| 4579 CloseHandle(hFile); | |
| 4580 return NULL; | |
| 4581 } | |
| 4582 | |
| 4583 DWORD bytes_read; | |
| 4584 OVERLAPPED overlapped; | |
| 4585 overlapped.Offset = (DWORD)file_offset; | |
| 4586 overlapped.OffsetHigh = 0; | |
| 4587 overlapped.hEvent = NULL; | |
| 4588 // ReadFile guarantees that if the return value is true, the requested | |
| 4589 // number of bytes were read before returning. | |
| 4590 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
| 4591 if (!res) { | |
| 4592 if (PrintMiscellaneous && Verbose) { | |
| 4593 DWORD err = GetLastError(); | |
| 4594 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
| 4595 } | |
| 4596 release_memory(base, bytes); | |
| 4597 CloseHandle(hFile); | |
| 4598 return NULL; | |
| 4599 } | |
| 4600 } else { | |
| 4601 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
| 4602 NULL /*file_name*/); | |
| 4603 if (hMap == NULL) { | |
| 4604 if (PrintMiscellaneous && Verbose) { | |
| 4605 DWORD err = GetLastError(); | |
|
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7458
diff
changeset
|
4606 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld.", err); |
| 0 | 4607 } |
| 4608 CloseHandle(hFile); | |
| 4609 return NULL; | |
| 4610 } | |
| 4611 | |
| 4612 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
| 4613 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
| 4614 (DWORD)bytes, addr); | |
| 4615 if (base == NULL) { | |
| 4616 if (PrintMiscellaneous && Verbose) { | |
| 4617 DWORD err = GetLastError(); | |
| 4618 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
| 4619 } | |
| 4620 CloseHandle(hMap); | |
| 4621 CloseHandle(hFile); | |
| 4622 return NULL; | |
| 4623 } | |
| 4624 | |
| 4625 if (CloseHandle(hMap) == 0) { | |
| 4626 if (PrintMiscellaneous && Verbose) { | |
| 4627 DWORD err = GetLastError(); | |
| 4628 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
| 4629 } | |
| 4630 CloseHandle(hFile); | |
| 4631 return base; | |
| 4632 } | |
| 4633 } | |
| 4634 | |
| 4635 if (allow_exec) { | |
| 4636 DWORD old_protect; | |
| 4637 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
| 4638 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
| 4639 | |
| 4640 if (!res) { | |
| 4641 if (PrintMiscellaneous && Verbose) { | |
| 4642 DWORD err = GetLastError(); | |
| 4643 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
| 4644 } | |
| 4645 // Don't consider this a hard error, on IA32 even if the | |
| 4646 // VirtualProtect fails, we should still be able to execute | |
| 4647 CloseHandle(hFile); | |
| 4648 return base; | |
| 4649 } | |
| 4650 } | |
| 4651 | |
| 4652 if (CloseHandle(hFile) == 0) { | |
| 4653 if (PrintMiscellaneous && Verbose) { | |
| 4654 DWORD err = GetLastError(); | |
| 4655 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
| 4656 } | |
| 4657 return base; | |
| 4658 } | |
| 4659 | |
| 4660 return base; | |
| 4661 } | |
| 4662 | |
| 4663 | |
| 4664 // Remap a block of memory. | |
| 6197 | 4665 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4666 char *addr, size_t bytes, bool read_only, |
| 4667 bool allow_exec) { | |
| 4668 // This OS does not allow existing memory maps to be remapped so we | |
| 4669 // have to unmap the memory before we remap it. | |
| 4670 if (!os::unmap_memory(addr, bytes)) { | |
| 4671 return NULL; | |
| 4672 } | |
| 4673 | |
| 4674 // There is a very small theoretical window between the unmap_memory() | |
| 4675 // call above and the map_memory() call below where a thread in native | |
| 4676 // code may be able to access an address that is no longer mapped. | |
| 4677 | |
| 6197 | 4678 return os::map_memory(fd, file_name, file_offset, addr, bytes, |
| 4679 read_only, allow_exec); | |
| 0 | 4680 } |
| 4681 | |
| 4682 | |
| 4683 // Unmap a block of memory. | |
| 4684 // Returns true=success, otherwise false. | |
| 4685 | |
| 6197 | 4686 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
| 0 | 4687 BOOL result = UnmapViewOfFile(addr); |
| 4688 if (result == 0) { | |
| 4689 if (PrintMiscellaneous && Verbose) { | |
| 4690 DWORD err = GetLastError(); | |
| 4691 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
| 4692 } | |
| 4693 return false; | |
| 4694 } | |
| 4695 return true; | |
| 4696 } | |
| 4697 | |
| 4698 void os::pause() { | |
| 4699 char filename[MAX_PATH]; | |
| 4700 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 4701 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 4702 } else { | |
| 4703 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 4704 } | |
| 4705 | |
| 4706 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 4707 if (fd != -1) { | |
| 4708 struct stat buf; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4709 ::close(fd); |
| 0 | 4710 while (::stat(filename, &buf) == 0) { |
| 4711 Sleep(100); | |
| 4712 } | |
| 4713 } else { | |
| 4714 jio_fprintf(stderr, | |
| 4715 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 4716 } | |
| 4717 } | |
| 4718 | |
| 11151 | 4719 os::WatcherThreadCrashProtection::WatcherThreadCrashProtection() { |
| 4720 assert(Thread::current()->is_Watcher_thread(), "Must be WatcherThread"); | |
| 4721 } | |
| 4722 | |
| 4723 /* | |
| 4724 * See the caveats for this class in os_windows.hpp | |
| 4725 * Protects the callback call so that raised OS EXCEPTIONS causes a jump back | |
| 4726 * into this method and returns false. If no OS EXCEPTION was raised, returns | |
| 4727 * true. | |
| 4728 * The callback is supposed to provide the method that should be protected. | |
| 4729 */ | |
| 4730 bool os::WatcherThreadCrashProtection::call(os::CrashProtectionCallback& cb) { | |
| 4731 assert(Thread::current()->is_Watcher_thread(), "Only for WatcherThread"); | |
| 4732 assert(!WatcherThread::watcher_thread()->has_crash_protection(), | |
| 4733 "crash_protection already set?"); | |
| 4734 | |
| 4735 bool success = true; | |
| 4736 __try { | |
| 4737 WatcherThread::watcher_thread()->set_crash_protection(this); | |
| 4738 cb.call(); | |
| 4739 } __except(EXCEPTION_EXECUTE_HANDLER) { | |
| 4740 // only for protection, nothing to do | |
| 4741 success = false; | |
| 4742 } | |
| 4743 WatcherThread::watcher_thread()->set_crash_protection(NULL); | |
| 4744 return success; | |
| 4745 } | |
| 4746 | |
| 0 | 4747 // An Event wraps a win32 "CreateEvent" kernel handle. |
| 4748 // | |
| 4749 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
| 4750 // | |
| 4751 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
| 4752 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
| 4753 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
| 4754 // In addition, an unpark() operation might fetch the handle field, but the | |
| 4755 // event could recycle between the fetch and the SetEvent() operation. | |
| 4756 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
| 4757 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
| 4758 // on an stale but recycled handle would be harmless, but in practice this might | |
| 4759 // confuse other non-Sun code, so it's not a viable approach. | |
| 4760 // | |
| 4761 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
| 4762 // with the Event. The event handle is never closed. This could be construed | |
| 4763 // as handle leakage, but only up to the maximum # of threads that have been extant | |
| 4764 // at any one time. This shouldn't be an issue, as windows platforms typically | |
| 4765 // permit a process to have hundreds of thousands of open handles. | |
| 4766 // | |
| 4767 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
| 4768 // and release unused handles. | |
| 4769 // | |
| 4770 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
| 4771 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
| 4772 // | |
| 4773 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
| 4774 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
| 4775 // | |
| 4776 // We use (2). | |
| 4777 // | |
| 4778 // TODO-FIXME: | |
| 4779 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
| 4780 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
| 4781 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
| 4782 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
| 4783 // into a single win32 CreateEvent() handle. | |
| 4784 // | |
| 4785 // _Event transitions in park() | |
| 4786 // -1 => -1 : illegal | |
| 4787 // 1 => 0 : pass - return immediately | |
| 4788 // 0 => -1 : block | |
| 4789 // | |
| 4790 // _Event serves as a restricted-range semaphore : | |
| 4791 // -1 : thread is blocked | |
| 4792 // 0 : neutral - thread is running or ready | |
| 4793 // 1 : signaled - thread is running or ready | |
| 4794 // | |
| 4795 // Another possible encoding of _Event would be | |
| 4796 // with explicit "PARKED" and "SIGNALED" bits. | |
| 4797 | |
| 4798 int os::PlatformEvent::park (jlong Millis) { | |
| 4799 guarantee (_ParkHandle != NULL , "Invariant") ; | |
| 4800 guarantee (Millis > 0 , "Invariant") ; | |
| 4801 int v ; | |
| 4802 | |
| 4803 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
| 4804 // the initial park() operation. | |
| 4805 | |
| 4806 for (;;) { | |
| 4807 v = _Event ; | |
| 4808 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4809 } | |
| 4810 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4811 if (v != 0) return OS_OK ; | |
| 4812 | |
| 4813 // Do this the hard way by blocking ... | |
| 4814 // TODO: consider a brief spin here, gated on the success of recent | |
| 4815 // spin attempts by this thread. | |
| 4816 // | |
| 4817 // We decompose long timeouts into series of shorter timed waits. | |
| 4818 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
| 4819 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
| 4820 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
| 4821 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
| 4822 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
| 4823 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
| 4824 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
| 4825 // for the already waited time. This policy does not admit any new outcomes. | |
| 4826 // In the future, however, we might want to track the accumulated wait time and | |
| 4827 // adjust Millis accordingly if we encounter a spurious wakeup. | |
| 4828 | |
| 4829 const int MAXTIMEOUT = 0x10000000 ; | |
| 4830 DWORD rv = WAIT_TIMEOUT ; | |
| 4831 while (_Event < 0 && Millis > 0) { | |
| 4832 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
| 4833 if (Millis > MAXTIMEOUT) { | |
| 4834 prd = MAXTIMEOUT ; | |
| 4835 } | |
| 4836 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
| 4837 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
| 4838 if (rv == WAIT_TIMEOUT) { | |
| 4839 Millis -= prd ; | |
| 4840 } | |
| 4841 } | |
| 4842 v = _Event ; | |
| 4843 _Event = 0 ; | |
|
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7623
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|
4844 // see comment at end of os::PlatformEvent::park() below: |
| 0 | 4845 OrderAccess::fence() ; |
| 4846 // If we encounter a nearly simultanous timeout expiry and unpark() | |
| 4847 // we return OS_OK indicating we awoke via unpark(). | |
| 4848 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
| 4849 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
| 4850 } | |
| 4851 | |
| 4852 void os::PlatformEvent::park () { | |
| 4853 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4854 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 4855 // may call park(). | |
| 4856 int v ; | |
| 4857 for (;;) { | |
| 4858 v = _Event ; | |
| 4859 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4860 } | |
| 4861 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4862 if (v != 0) return ; | |
| 4863 | |
| 4864 // Do this the hard way by blocking ... | |
| 4865 // TODO: consider a brief spin here, gated on the success of recent | |
| 4866 // spin attempts by this thread. | |
| 4867 while (_Event < 0) { | |
| 4868 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
| 4869 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
| 4870 } | |
| 4871 | |
| 4872 // Usually we'll find _Event == 0 at this point, but as | |
| 4873 // an optional optimization we clear it, just in case can | |
| 4874 // multiple unpark() operations drove _Event up to 1. | |
| 4875 _Event = 0 ; | |
| 4876 OrderAccess::fence() ; | |
| 4877 guarantee (_Event >= 0, "invariant") ; | |
| 4878 } | |
| 4879 | |
| 4880 void os::PlatformEvent::unpark() { | |
| 4881 guarantee (_ParkHandle != NULL, "Invariant") ; | |
|
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|
4882 |
|
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|
4883 // Transitions for _Event: |
|
22ba8c8ce6a6
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7623
diff
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|
4884 // 0 :=> 1 |
|
22ba8c8ce6a6
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7623
diff
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|
4885 // 1 :=> 1 |
|
22ba8c8ce6a6
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7623
diff
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|
4886 // -1 :=> either 0 or 1; must signal target thread |
|
22ba8c8ce6a6
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7623
diff
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|
4887 // That is, we can safely transition _Event from -1 to either |
|
22ba8c8ce6a6
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7623
diff
changeset
|
4888 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
|
22ba8c8ce6a6
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7623
diff
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|
4889 // unpark() calls. |
|
22ba8c8ce6a6
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parents:
7623
diff
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|
4890 // See also: "Semaphores in Plan 9" by Mullender & Cox |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
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|
4891 // |
|
22ba8c8ce6a6
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parents:
7623
diff
changeset
|
4892 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4893 // that it will take two back-to-back park() calls for the owning |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4894 // thread to block. This has the benefit of forcing a spurious return |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4895 // from the first park() call after an unpark() call which will help |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4896 // shake out uses of park() and unpark() without condition variables. |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4897 |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4898 if (Atomic::xchg(1, &_Event) >= 0) return; |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4899 |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
7623
diff
changeset
|
4900 ::SetEvent(_ParkHandle); |
| 0 | 4901 } |
| 4902 | |
| 4903 | |
| 4904 // JSR166 | |
| 4905 // ------------------------------------------------------- | |
| 4906 | |
| 4907 /* | |
| 4908 * The Windows implementation of Park is very straightforward: Basic | |
| 4909 * operations on Win32 Events turn out to have the right semantics to | |
| 4910 * use them directly. We opportunistically resuse the event inherited | |
| 4911 * from Monitor. | |
| 4912 */ | |
| 4913 | |
| 4914 | |
| 4915 void Parker::park(bool isAbsolute, jlong time) { | |
| 4916 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4917 // First, demultiplex/decode time arguments | |
| 4918 if (time < 0) { // don't wait | |
| 4919 return; | |
| 4920 } | |
|
1865
1c352af0135d
6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents:
1681
diff
changeset
|
4921 else if (time == 0 && !isAbsolute) { |
| 0 | 4922 time = INFINITE; |
| 4923 } | |
| 4924 else if (isAbsolute) { | |
| 4925 time -= os::javaTimeMillis(); // convert to relative time | |
| 4926 if (time <= 0) // already elapsed | |
| 4927 return; | |
| 4928 } | |
| 4929 else { // relative | |
| 4930 time /= 1000000; // Must coarsen from nanos to millis | |
| 4931 if (time == 0) // Wait for the minimal time unit if zero | |
| 4932 time = 1; | |
| 4933 } | |
| 4934 | |
| 4935 JavaThread* thread = (JavaThread*)(Thread::current()); | |
| 4936 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 4937 JavaThread *jt = (JavaThread *)thread; | |
| 4938 | |
| 4939 // Don't wait if interrupted or already triggered | |
| 4940 if (Thread::is_interrupted(thread, false) || | |
| 4941 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
| 4942 ResetEvent(_ParkEvent); | |
| 4943 return; | |
| 4944 } | |
| 4945 else { | |
| 4946 ThreadBlockInVM tbivm(jt); | |
| 4947 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 4948 jt->set_suspend_equivalent(); | |
| 4949 | |
| 4950 WaitForSingleObject(_ParkEvent, time); | |
| 4951 ResetEvent(_ParkEvent); | |
| 4952 | |
| 4953 // If externally suspended while waiting, re-suspend | |
| 4954 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 4955 jt->java_suspend_self(); | |
| 4956 } | |
| 4957 } | |
| 4958 } | |
| 4959 | |
| 4960 void Parker::unpark() { | |
| 4961 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4962 SetEvent(_ParkEvent); | |
| 4963 } | |
| 4964 | |
| 4965 // Run the specified command in a separate process. Return its exit value, | |
| 4966 // or -1 on failure (e.g. can't create a new process). | |
| 4967 int os::fork_and_exec(char* cmd) { | |
| 4968 STARTUPINFO si; | |
| 4969 PROCESS_INFORMATION pi; | |
| 4970 | |
| 4971 memset(&si, 0, sizeof(si)); | |
| 4972 si.cb = sizeof(si); | |
| 4973 memset(&pi, 0, sizeof(pi)); | |
| 4974 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
| 4975 cmd, // command line | |
| 4976 NULL, // process security attribute | |
| 4977 NULL, // thread security attribute | |
| 4978 TRUE, // inherits system handles | |
| 4979 0, // no creation flags | |
| 4980 NULL, // use parent's environment block | |
| 4981 NULL, // use parent's starting directory | |
| 4982 &si, // (in) startup information | |
| 4983 &pi); // (out) process information | |
| 4984 | |
| 4985 if (rslt) { | |
| 4986 // Wait until child process exits. | |
| 4987 WaitForSingleObject(pi.hProcess, INFINITE); | |
| 4988 | |
| 4989 DWORD exit_code; | |
| 4990 GetExitCodeProcess(pi.hProcess, &exit_code); | |
| 4991 | |
| 4992 // Close process and thread handles. | |
| 4993 CloseHandle(pi.hProcess); | |
| 4994 CloseHandle(pi.hThread); | |
| 4995 | |
| 4996 return (int)exit_code; | |
| 4997 } else { | |
| 4998 return -1; | |
| 4999 } | |
| 5000 } | |
| 5001 | |
| 5002 //-------------------------------------------------------------------------------------------------- | |
| 5003 // Non-product code | |
| 5004 | |
| 5005 static int mallocDebugIntervalCounter = 0; | |
| 5006 static int mallocDebugCounter = 0; | |
| 5007 bool os::check_heap(bool force) { | |
| 5008 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
| 5009 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
| 5010 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
| 5011 // wrong; at these points, eax contains the address of the offending block (I think). | |
| 5012 // To get to the exlicit error message(s) below, just continue twice. | |
| 5013 HANDLE heap = GetProcessHeap(); | |
| 5014 { HeapLock(heap); | |
| 5015 PROCESS_HEAP_ENTRY phe; | |
| 5016 phe.lpData = NULL; | |
| 5017 while (HeapWalk(heap, &phe) != 0) { | |
| 5018 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
| 5019 !HeapValidate(heap, 0, phe.lpData)) { | |
| 5020 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
| 5021 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
| 5022 fatal("corrupted C heap"); | |
| 5023 } | |
| 5024 } | |
|
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
5025 DWORD err = GetLastError(); |
| 0 | 5026 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
|
5027 fatal(err_msg("heap walk aborted with error %d", err)); |
| 0 | 5028 } |
| 5029 HeapUnlock(heap); | |
| 5030 } | |
| 5031 mallocDebugIntervalCounter = 0; | |
| 5032 } | |
| 5033 return true; | |
| 5034 } | |
| 5035 | |
| 5036 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5037 bool os::find(address addr, outputStream* st) { |
| 0 | 5038 // Nothing yet |
| 5039 return false; | |
| 5040 } | |
| 5041 | |
| 5042 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
| 5043 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
| 5044 | |
| 5045 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 5046 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
| 5047 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
| 5048 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 5049 | |
| 5050 if (os::is_memory_serialize_page(thread, addr)) | |
| 5051 return EXCEPTION_CONTINUE_EXECUTION; | |
| 5052 } | |
| 5053 | |
| 5054 return EXCEPTION_CONTINUE_SEARCH; | |
| 5055 } | |
| 5056 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5057 // We don't build a headless jre for Windows |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5058 bool os::is_headless_jre() { return false; } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5059 |
| 8872 | 5060 static jint initSock() { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5061 WSADATA wsadata; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5062 |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5063 if (!os::WinSock2Dll::WinSock2Available()) { |
| 8872 | 5064 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
|
5065 ::GetLastError()); |
| 8872 | 5066 return JNI_ERR; |
| 5067 } | |
| 5068 | |
| 5069 if (os::WinSock2Dll::WSAStartup(MAKEWORD(2,2), &wsadata) != 0) { | |
| 5070 jio_fprintf(stderr, "Could not initialize Winsock (error: %d)\n", | |
| 5071 ::GetLastError()); | |
| 5072 return JNI_ERR; | |
| 5073 } | |
| 5074 return JNI_OK; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5075 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5076 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5077 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
|
5078 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5079 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5080 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5081 int os::socket_close(int fd) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5082 return ::closesocket(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5083 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5084 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5085 int os::socket_available(int fd, jint *pbytes) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5086 int ret = ::ioctlsocket(fd, FIONREAD, (u_long*)pbytes); |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5087 return (ret < 0) ? 0 : 1; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5088 } |
|
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 int os::socket(int domain, int type, int protocol) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5091 return ::socket(domain, type, protocol); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5092 } |
|
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 int os::listen(int fd, int count) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5095 return ::listen(fd, count); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5096 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5097 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5098 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
|
5099 return ::connect(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5100 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5101 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5102 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
|
5103 return ::accept(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5104 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5105 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5106 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
|
5107 struct sockaddr* to, socklen_t tolen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5108 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5109 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
|
5110 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5111 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5112 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
|
5113 sockaddr* from, socklen_t* fromlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5114 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5115 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
|
5116 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5117 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5118 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
|
5119 return ::recv(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5120 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5121 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5122 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
|
5123 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5124 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5125 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5126 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
|
5127 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5128 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5129 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5130 int os::timeout(int fd, long timeout) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5131 fd_set tbl; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5132 struct timeval t; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5133 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5134 t.tv_sec = timeout / 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5135 t.tv_usec = (timeout % 1000) * 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5136 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5137 tbl.fd_count = 1; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5138 tbl.fd_array[0] = fd; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5139 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5140 return ::select(1, &tbl, 0, 0, &t); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5141 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
5142 |
|
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diff
changeset
|
5143 int os::get_host_name(char* name, int namelen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
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diff
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|
5144 return ::gethostname(name, namelen); |
|
1980
828eafbd85cc
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diff
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|
5145 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
5146 |
|
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6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
5147 int os::socket_shutdown(int fd, int howto) { |
|
6044
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twisti
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diff
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|
5148 return ::shutdown(fd, howto); |
|
1980
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diff
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|
5149 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
5150 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
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4006
diff
changeset
|
5151 int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
|
6044
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twisti
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|
5152 return ::bind(fd, him, len); |
|
1980
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6348631: remove the use of the HPI library from Hotspot
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diff
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|
5153 } |
|
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6348631: remove the use of the HPI library from Hotspot
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diff
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|
5154 |
|
4717
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7091417: recvfrom's 6th input should be of type socklen_t
phh
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4006
diff
changeset
|
5155 int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
|
6044
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diff
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|
5156 return ::getsockname(fd, him, len); |
|
1980
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diff
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|
5157 } |
|
828eafbd85cc
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diff
changeset
|
5158 |
|
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6348631: remove the use of the HPI library from Hotspot
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diff
changeset
|
5159 int os::get_sock_opt(int fd, int level, int optname, |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
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4006
diff
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|
5160 char* optval, socklen_t* optlen) { |
|
6044
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|
5161 return ::getsockopt(fd, level, optname, optval, optlen); |
|
1980
828eafbd85cc
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|
5162 } |
|
828eafbd85cc
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diff
changeset
|
5163 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
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diff
changeset
|
5164 int os::set_sock_opt(int fd, int level, int optname, |
|
4717
11c26bfcf8c7
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phh
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diff
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|
5165 const char* optval, socklen_t optlen) { |
|
6044
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5903
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|
5166 return ::setsockopt(fd, level, optname, optval, optlen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
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|
5167 } |
|
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|
5168 |
| 10405 | 5169 // WINDOWS CONTEXT Flags for THREAD_SAMPLING |
| 5170 #if defined(IA32) | |
| 5171 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT | CONTEXT_EXTENDED_REGISTERS) | |
| 5172 #elif defined (AMD64) | |
| 5173 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
| 5174 #endif | |
| 5175 | |
| 5176 // returns true if thread could be suspended, | |
| 5177 // false otherwise | |
| 5178 static bool do_suspend(HANDLE* h) { | |
| 5179 if (h != NULL) { | |
| 5180 if (SuspendThread(*h) != ~0) { | |
| 5181 return true; | |
| 5182 } | |
| 5183 } | |
| 5184 return false; | |
| 5185 } | |
| 5186 | |
| 5187 // resume the thread | |
| 5188 // calling resume on an active thread is a no-op | |
| 5189 static void do_resume(HANDLE* h) { | |
| 5190 if (h != NULL) { | |
| 5191 ResumeThread(*h); | |
| 5192 } | |
| 5193 } | |
| 5194 | |
| 5195 // retrieve a suspend/resume context capable handle | |
| 5196 // from the tid. Caller validates handle return value. | |
| 5197 void get_thread_handle_for_extended_context(HANDLE* h, OSThread::thread_id_t tid) { | |
| 5198 if (h != NULL) { | |
| 5199 *h = OpenThread(THREAD_SUSPEND_RESUME | THREAD_GET_CONTEXT | THREAD_QUERY_INFORMATION, FALSE, tid); | |
| 5200 } | |
| 5201 } | |
| 5202 | |
| 5203 // | |
| 5204 // Thread sampling implementation | |
| 5205 // | |
| 5206 void os::SuspendedThreadTask::internal_do_task() { | |
| 5207 CONTEXT ctxt; | |
| 5208 HANDLE h = NULL; | |
| 5209 | |
| 5210 // get context capable handle for thread | |
| 5211 get_thread_handle_for_extended_context(&h, _thread->osthread()->thread_id()); | |
| 5212 | |
| 5213 // sanity | |
| 5214 if (h == NULL || h == INVALID_HANDLE_VALUE) { | |
| 5215 return; | |
| 5216 } | |
| 5217 | |
| 5218 // suspend the thread | |
| 5219 if (do_suspend(&h)) { | |
| 5220 ctxt.ContextFlags = sampling_context_flags; | |
| 5221 // get thread context | |
| 5222 GetThreadContext(h, &ctxt); | |
| 5223 SuspendedThreadTaskContext context(_thread, &ctxt); | |
| 5224 // pass context to Thread Sampling impl | |
| 5225 do_task(context); | |
| 5226 // resume thread | |
| 5227 do_resume(&h); | |
| 5228 } | |
| 5229 | |
| 5230 // close handle | |
| 5231 CloseHandle(h); | |
| 5232 } | |
| 5233 | |
|
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|
5234 |
|
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|
5235 // Kernel32 API |
|
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|
5236 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
| 3885 | 5237 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
| 5238 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
| 5239 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
| 6197 | 5240 typedef USHORT (WINAPI* RtlCaptureStackBackTrace_Fn)(ULONG, ULONG, PVOID*, PULONG); |
| 3885 | 5241 |
|
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|
5242 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
| 3885 | 5243 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
| 5244 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
| 5245 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
| 6197 | 5246 RtlCaptureStackBackTrace_Fn os::Kernel32Dll::_RtlCaptureStackBackTrace = NULL; |
| 5247 | |
| 5248 | |
|
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|
5249 BOOL os::Kernel32Dll::initialized = FALSE; |
|
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|
5250 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
|
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|
5251 assert(initialized && _GetLargePageMinimum != NULL, |
|
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|
5252 "GetLargePageMinimumAvailable() not yet called"); |
|
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|
5253 return _GetLargePageMinimum(); |
|
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|
5254 } |
|
b1cbb0907b36
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|
5255 |
|
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|
5256 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
|
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|
5257 if (!initialized) { |
|
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|
5258 initialize(); |
|
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|
5259 } |
|
b1cbb0907b36
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|
5260 return _GetLargePageMinimum != NULL; |
|
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|
5261 } |
|
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|
5262 |
| 3885 | 5263 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
| 5264 if (!initialized) { | |
| 5265 initialize(); | |
| 5266 } | |
| 5267 return _VirtualAllocExNuma != NULL; | |
| 5268 } | |
| 5269 | |
| 5270 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
| 5271 assert(initialized && _VirtualAllocExNuma != NULL, | |
| 5272 "NUMACallsAvailable() not yet called"); | |
| 5273 | |
| 5274 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
| 5275 } | |
| 5276 | |
| 5277 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
| 5278 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
| 5279 "NUMACallsAvailable() not yet called"); | |
| 5280 | |
| 5281 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
| 5282 } | |
| 5283 | |
| 5284 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
| 5285 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
| 5286 "NUMACallsAvailable() not yet called"); | |
| 5287 | |
| 5288 return _GetNumaNodeProcessorMask(node, proc_mask); | |
| 5289 } | |
| 5290 | |
| 6197 | 5291 USHORT os::Kernel32Dll::RtlCaptureStackBackTrace(ULONG FrameToSkip, |
| 5292 ULONG FrameToCapture, PVOID* BackTrace, PULONG BackTraceHash) { | |
| 5293 if (!initialized) { | |
| 5294 initialize(); | |
| 5295 } | |
| 5296 | |
| 5297 if (_RtlCaptureStackBackTrace != NULL) { | |
| 5298 return _RtlCaptureStackBackTrace(FrameToSkip, FrameToCapture, | |
| 5299 BackTrace, BackTraceHash); | |
| 5300 } else { | |
| 5301 return 0; | |
| 5302 } | |
| 5303 } | |
| 3885 | 5304 |
| 5305 void os::Kernel32Dll::initializeCommon() { | |
| 5306 if (!initialized) { | |
| 5307 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
| 5308 assert(handle != NULL, "Just check"); | |
| 5309 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
| 5310 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
| 5311 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
| 5312 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
| 6197 | 5313 _RtlCaptureStackBackTrace = (RtlCaptureStackBackTrace_Fn)::GetProcAddress(handle, "RtlCaptureStackBackTrace"); |
| 3885 | 5314 initialized = TRUE; |
| 5315 } | |
| 5316 } | |
| 5317 | |
| 5318 | |
|
3833
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|
5319 |
|
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|
5320 #ifndef JDK6_OR_EARLIER |
|
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|
5321 |
|
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|
5322 void os::Kernel32Dll::initialize() { |
| 3885 | 5323 initializeCommon(); |
|
3833
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|
5324 } |
|
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|
5325 |
|
b1cbb0907b36
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|
5326 |
|
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|
5327 // Kernel32 API |
|
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|
5328 inline BOOL os::Kernel32Dll::SwitchToThread() { |
|
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|
5329 return ::SwitchToThread(); |
|
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|
5330 } |
|
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|
5331 |
|
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|
5332 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
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|
5333 return true; |
|
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|
5334 } |
|
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|
5335 |
|
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|
5336 // Help tools |
|
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|
5337 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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|
5338 return true; |
|
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|
5339 } |
|
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|
5340 |
|
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|
5341 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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|
5342 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
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|
5343 } |
|
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|
5344 |
|
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|
5345 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5346 return ::Module32First(hSnapshot, lpme); |
|
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|
5347 } |
|
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|
5348 |
|
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|
5349 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5350 return ::Module32Next(hSnapshot, lpme); |
|
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|
5351 } |
|
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|
5352 |
|
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|
5353 |
|
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|
5354 inline BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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|
5355 return true; |
|
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|
5356 } |
|
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|
5357 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5358 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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|
5359 ::GetNativeSystemInfo(lpSystemInfo); |
|
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|
5360 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5361 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5362 // PSAPI API |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5363 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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|
5364 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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3800
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|
5365 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5366 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5367 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5368 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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changeset
|
5369 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5370 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5371 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5372 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5373 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5374 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5375 inline BOOL os::PSApiDll::PSApiAvailable() { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5376 return true; |
|
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changeset
|
5377 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5378 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5379 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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changeset
|
5380 // WinSock2 API |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5381 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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|
5382 return ::WSAStartup(wVersionRequested, lpWSAData); |
|
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3800
diff
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|
5383 } |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5384 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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diff
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|
5385 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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|
5386 return ::gethostbyname(name); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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diff
changeset
|
5387 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
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diff
changeset
|
5388 |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5389 inline BOOL os::WinSock2Dll::WinSock2Available() { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
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changeset
|
5390 return true; |
|
b1cbb0907b36
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zgu
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3800
diff
changeset
|
5391 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
diff
changeset
|
5392 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
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diff
changeset
|
5393 // Advapi API |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
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changeset
|
5394 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
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changeset
|
5395 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
|
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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
|
5396 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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parents:
3800
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changeset
|
5397 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
|
5398 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
|
5399 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
diff
changeset
|
5400 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5401 inline 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
zgu
parents:
3800
diff
changeset
|
5402 PHANDLE TokenHandle) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5403 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5404 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5405 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5406 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
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parents:
3800
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changeset
|
5407 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5408 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5409 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5410 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5411 return true; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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3800
diff
changeset
|
5412 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
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3800
diff
changeset
|
5413 |
|
12117
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5414 void* os::get_default_process_handle() { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5415 return (void*)GetModuleHandle(NULL); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5416 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5417 |
|
f92b82d454fa
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diff
changeset
|
5418 // 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
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|
5419 // 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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diff
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|
5420 // 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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|
5421 // Parameters: |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5422 // sym_name: Symbol in library we are looking for |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5423 // 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
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|
5424 // 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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|
5425 // 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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diff
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|
5426 // == 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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|
5427 // such as "L" |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5428 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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diff
changeset
|
5429 bool is_absolute_path) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5430 char *agent_entry_name; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5431 size_t len; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5432 size_t name_len; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5433 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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changeset
|
5434 size_t suffix_len = strlen(JNI_LIB_SUFFIX); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5435 const char *start; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5436 |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5437 if (lib_name != NULL) { |
|
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8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5438 len = name_len = strlen(lib_name); |
|
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8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5439 if (is_absolute_path) { |
|
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8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5440 // Need to strip path, prefix and suffix |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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|
5441 if ((start = strrchr(lib_name, *os::file_separator())) != NULL) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5442 lib_name = ++start; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5443 } else { |
| 12220 | 5444 // Need to check for drive prefix |
|
12117
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8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5445 if ((start = strchr(lib_name, ':')) != NULL) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5446 lib_name = ++start; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5447 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5448 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5449 if (len <= (prefix_len + suffix_len)) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5450 return NULL; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
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diff
changeset
|
5451 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5452 lib_name += prefix_len; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5453 name_len = strlen(lib_name) - suffix_len; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5454 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5455 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5456 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
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changeset
|
5457 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
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changeset
|
5458 if (agent_entry_name == NULL) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5459 return NULL; |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5460 } |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
bpittore
parents:
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diff
changeset
|
5461 if (lib_name != NULL) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5462 const char *p = strrchr(sym_name, '@'); |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5463 if (p != NULL && p != sym_name) { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5464 // sym_name == _Agent_OnLoad@XX |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5465 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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changeset
|
5466 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
|
5467 // agent_entry_name == _Agent_OnLoad |
|
f92b82d454fa
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diff
changeset
|
5468 strcat(agent_entry_name, "_"); |
|
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diff
changeset
|
5469 strncat(agent_entry_name, lib_name, name_len); |
|
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changeset
|
5470 strcat(agent_entry_name, p); |
|
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|
5471 // agent_entry_name == _Agent_OnLoad_lib_name@XX |
|
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bpittore
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|
5472 } else { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5473 strcpy(agent_entry_name, sym_name); |
|
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8014135: The JVMTI specification does not conform to recent changes in JNI specification
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changeset
|
5474 strcat(agent_entry_name, "_"); |
|
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diff
changeset
|
5475 strncat(agent_entry_name, lib_name, name_len); |
|
f92b82d454fa
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bpittore
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diff
changeset
|
5476 } |
|
f92b82d454fa
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diff
changeset
|
5477 } else { |
|
f92b82d454fa
8014135: The JVMTI specification does not conform to recent changes in JNI specification
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diff
changeset
|
5478 strcpy(agent_entry_name, sym_name); |
|
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bpittore
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12018
diff
changeset
|
5479 } |
|
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bpittore
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diff
changeset
|
5480 return agent_entry_name; |
|
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diff
changeset
|
5481 } |
|
f92b82d454fa
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changeset
|
5482 |
|
3833
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|
5483 #else |
|
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|
5484 // Kernel32 API |
|
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|
5485 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
|
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|
5486 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
|
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|
5487 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
5488 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
5489 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
|
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|
5490 |
|
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|
5491 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
|
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|
5492 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
|
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|
5493 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
|
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|
5494 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
|
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|
5495 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
|
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|
5496 |
|
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|
5497 void os::Kernel32Dll::initialize() { |
|
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|
5498 if (!initialized) { |
|
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|
5499 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
|
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|
5500 assert(handle != NULL, "Just check"); |
|
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|
5501 |
|
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|
5502 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
|
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|
5503 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
|
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|
5504 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
|
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|
5505 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
|
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|
5506 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
|
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|
5507 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
| 3885 | 5508 initializeCommon(); // resolve the functions that always need resolving |
|
3833
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|
5509 |
|
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|
5510 initialized = TRUE; |
|
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|
5511 } |
|
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|
5512 } |
|
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|
5513 |
|
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|
5514 BOOL os::Kernel32Dll::SwitchToThread() { |
|
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|
5515 assert(initialized && _SwitchToThread != NULL, |
|
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|
5516 "SwitchToThreadAvailable() not yet called"); |
|
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|
5517 return _SwitchToThread(); |
|
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|
5518 } |
|
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changeset
|
5519 |
|
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diff
changeset
|
5520 |
|
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diff
changeset
|
5521 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
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|
5522 if (!initialized) { |
|
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|
5523 initialize(); |
|
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|
5524 } |
|
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diff
changeset
|
5525 return _SwitchToThread != NULL; |
|
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|
5526 } |
|
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diff
changeset
|
5527 |
|
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diff
changeset
|
5528 // Help tools |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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diff
changeset
|
5529 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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|
5530 if (!initialized) { |
|
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|
5531 initialize(); |
|
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|
5532 } |
|
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diff
changeset
|
5533 return _CreateToolhelp32Snapshot != NULL && |
|
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changeset
|
5534 _Module32First != NULL && |
|
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changeset
|
5535 _Module32Next != NULL; |
|
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|
5536 } |
|
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diff
changeset
|
5537 |
|
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diff
changeset
|
5538 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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|
5539 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
|
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changeset
|
5540 "HelpToolsAvailable() not yet called"); |
|
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changeset
|
5541 |
|
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diff
changeset
|
5542 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
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|
5543 } |
|
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changeset
|
5544 |
|
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diff
changeset
|
5545 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5546 assert(initialized && _Module32First != NULL, |
|
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changeset
|
5547 "HelpToolsAvailable() not yet called"); |
|
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|
5548 |
|
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changeset
|
5549 return _Module32First(hSnapshot, lpme); |
|
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|
5550 } |
|
b1cbb0907b36
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changeset
|
5551 |
|
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|
5552 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5553 assert(initialized && _Module32Next != NULL, |
|
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|
5554 "HelpToolsAvailable() not yet called"); |
|
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|
5555 |
|
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|
5556 return _Module32Next(hSnapshot, lpme); |
|
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|
5557 } |
|
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|
5558 |
|
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changeset
|
5559 |
|
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diff
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|
5560 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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|
5561 if (!initialized) { |
|
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|
5562 initialize(); |
|
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|
5563 } |
|
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|
5564 return _GetNativeSystemInfo != NULL; |
|
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|
5565 } |
|
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changeset
|
5566 |
|
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|
5567 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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|
5568 assert(initialized && _GetNativeSystemInfo != NULL, |
|
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|
5569 "GetNativeSystemInfoAvailable() not yet called"); |
|
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|
5570 |
|
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changeset
|
5571 _GetNativeSystemInfo(lpSystemInfo); |
|
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|
5572 } |
|
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changeset
|
5573 |
|
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changeset
|
5574 // PSAPI API |
|
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changeset
|
5575 |
|
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changeset
|
5576 |
|
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|
5577 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
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5578 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
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5579 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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5580 |
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5581 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
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5582 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
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5583 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
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5584 BOOL os::PSApiDll::initialized = FALSE; |
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5585 |
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|
5586 void os::PSApiDll::initialize() { |
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5587 if (!initialized) { |
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5588 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
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|
5589 if (handle != NULL) { |
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5590 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
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|
5591 "EnumProcessModules"); |
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|
5592 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
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|
5593 "GetModuleFileNameExA"); |
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|
5594 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
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|
5595 "GetModuleInformation"); |
|
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|
5596 } |
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|
5597 initialized = TRUE; |
|
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|
5598 } |
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|
5599 } |
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|
5600 |
|
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|
5601 |
|
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|
5602 |
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|
5603 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
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|
5604 assert(initialized && _EnumProcessModules != NULL, |
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|
5605 "PSApiAvailable() not yet called"); |
|
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|
5606 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
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|
5607 } |
|
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|
5608 |
|
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|
5609 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
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|
5610 assert(initialized && _GetModuleFileNameEx != NULL, |
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|
5611 "PSApiAvailable() not yet called"); |
|
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|
5612 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
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|
5613 } |
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|
5614 |
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|
5615 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
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|
5616 assert(initialized && _GetModuleInformation != NULL, |
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|
5617 "PSApiAvailable() not yet called"); |
|
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|
5618 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
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|
5619 } |
|
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|
5620 |
|
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|
5621 BOOL os::PSApiDll::PSApiAvailable() { |
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|
5622 if (!initialized) { |
|
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|
5623 initialize(); |
|
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|
5624 } |
|
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|
5625 return _EnumProcessModules != NULL && |
|
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|
5626 _GetModuleFileNameEx != NULL && |
|
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|
5627 _GetModuleInformation != NULL; |
|
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|
5628 } |
|
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|
5629 |
|
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changeset
|
5630 |
|
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|
5631 // WinSock2 API |
|
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|
5632 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
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|
5633 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
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|
5634 |
|
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|
5635 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
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|
5636 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
|
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|
5637 BOOL os::WinSock2Dll::initialized = FALSE; |
|
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|
5638 |
|
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|
5639 void os::WinSock2Dll::initialize() { |
|
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|
5640 if (!initialized) { |
|
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|
5641 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
|
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|
5642 if (handle != NULL) { |
|
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|
5643 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
|
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|
5644 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
|
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|
5645 } |
|
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|
5646 initialized = TRUE; |
|
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|
5647 } |
|
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|
5648 } |
|
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|
5649 |
|
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|
5650 |
|
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|
5651 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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|
5652 assert(initialized && _WSAStartup != NULL, |
|
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|
5653 "WinSock2Available() not yet called"); |
|
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|
5654 return _WSAStartup(wVersionRequested, lpWSAData); |
|
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|
5655 } |
|
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|
5656 |
|
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|
5657 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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|
5658 assert(initialized && _gethostbyname != NULL, |
|
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|
5659 "WinSock2Available() not yet called"); |
|
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|
5660 return _gethostbyname(name); |
|
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|
5661 } |
|
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changeset
|
5662 |
|
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|
5663 BOOL os::WinSock2Dll::WinSock2Available() { |
|
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|
5664 if (!initialized) { |
|
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|
5665 initialize(); |
|
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|
5666 } |
|
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|
5667 return _WSAStartup != NULL && |
|
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|
5668 _gethostbyname != NULL; |
|
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|
5669 } |
|
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|
5670 |
|
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|
5671 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
|
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|
5672 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
|
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|
5673 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
|
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|
5674 |
|
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|
5675 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
|
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|
5676 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
|
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|
5677 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
|
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|
5678 BOOL os::Advapi32Dll::initialized = FALSE; |
|
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|
5679 |
|
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|
5680 void os::Advapi32Dll::initialize() { |
|
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|
5681 if (!initialized) { |
|
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diff
changeset
|
5682 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
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3800
diff
changeset
|
5683 if (handle != NULL) { |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5684 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5685 "AdjustTokenPrivileges"); |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5686 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5687 "OpenProcessToken"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5688 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
|
3834
279ef1916773
7065535: Mistyped function name that disabled UseLargePages on Windows
zgu
parents:
3833
diff
changeset
|
5689 "LookupPrivilegeValueA"); |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5690 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5691 initialized = TRUE; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5692 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5693 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5694 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5695 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5696 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
|
5697 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5698 assert(initialized && _AdjustTokenPrivileges != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5699 "AdvapiAvailable() not yet called"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5700 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5701 BufferLength, PreviousState, ReturnLength); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5702 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5703 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5704 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
zgu
parents:
3800
diff
changeset
|
5705 PHANDLE TokenHandle) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5706 assert(initialized && _OpenProcessToken != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5707 "AdvapiAvailable() not yet called"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5708 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5709 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5710 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5711 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
zgu
parents:
3800
diff
changeset
|
5712 assert(initialized && _LookupPrivilegeValue != NULL, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5713 "AdvapiAvailable() not yet called"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5714 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5715 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5716 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5717 BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5718 if (!initialized) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5719 initialize(); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5720 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5721 return _AdjustTokenPrivileges != NULL && |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5722 _OpenProcessToken != NULL && |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5723 _LookupPrivilegeValue != NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5724 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5725 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5726 #endif |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5727 |
|
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5728 #ifndef PRODUCT |
|
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5729 |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5730 // test the code path in reserve_memory_special() that tries to allocate memory in a single |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5731 // contiguous memory block at a particular address. |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5732 // The test first tries to find a good approximate address to allocate at by using the same |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5733 // method to allocate some memory at any address. The test then tries to allocate memory in |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5734 // the vicinity (not directly after it to avoid possible by-chance use of that location) |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5735 // This is of course only some dodgy assumption, there is no guarantee that the vicinity of |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5736 // the previously allocated memory is available for allocation. The only actual failure |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5737 // that is reported is when the test tries to allocate at a particular location but gets a |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5738 // different valid one. A NULL return value at this point is not considered an error but may |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5739 // be legitimate. |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5740 // If -XX:+VerboseInternalVMTests is enabled, print some explanatory messages. |
|
12110
4c84d351cca9
8007074: SIGSEGV at ParMarkBitMap::verify_clear()
stefank
parents:
12018
diff
changeset
|
5741 void TestReserveMemorySpecial_test() { |
|
12228
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5742 if (!UseLargePages) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5743 if (VerboseInternalVMTests) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5744 gclog_or_tty->print("Skipping test because large pages are disabled"); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5745 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5746 return; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5747 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5748 // save current value of globals |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5749 bool old_use_large_pages_individual_allocation = UseLargePagesIndividualAllocation; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5750 bool old_use_numa_interleaving = UseNUMAInterleaving; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5751 |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5752 // set globals to make sure we hit the correct code path |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5753 UseLargePagesIndividualAllocation = UseNUMAInterleaving = false; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5754 |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5755 // do an allocation at an address selected by the OS to get a good one. |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5756 const size_t large_allocation_size = os::large_page_size() * 4; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5757 char* result = os::reserve_memory_special(large_allocation_size, os::large_page_size(), NULL, false); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5758 if (result == NULL) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5759 if (VerboseInternalVMTests) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5760 gclog_or_tty->print("Failed to allocate control block with size "SIZE_FORMAT". Skipping remainder of test.", |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5761 large_allocation_size); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5762 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5763 } else { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5764 os::release_memory_special(result, large_allocation_size); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5765 |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5766 // 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:
12124
diff
changeset
|
5767 // we managed to get it once. |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5768 const size_t expected_allocation_size = os::large_page_size(); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5769 char* expected_location = result + os::large_page_size(); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5770 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
tschatzl
parents:
12124
diff
changeset
|
5771 if (actual_location == NULL) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5772 if (VerboseInternalVMTests) { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5773 gclog_or_tty->print("Failed to allocate any memory at "PTR_FORMAT" size "SIZE_FORMAT". Skipping remainder of test.", |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5774 expected_location, large_allocation_size); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5775 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5776 } else { |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5777 // release memory |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5778 os::release_memory_special(actual_location, expected_allocation_size); |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5779 // only now check, after releasing any memory to avoid any leaks. |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5780 assert(actual_location == expected_location, |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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12124
diff
changeset
|
5781 err_msg("Failed to allocate memory at requested location "PTR_FORMAT" of size "SIZE_FORMAT", is "PTR_FORMAT" instead", |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5782 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
|
5783 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5784 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5785 |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5786 // restore globals |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5787 UseLargePagesIndividualAllocation = old_use_large_pages_individual_allocation; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
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diff
changeset
|
5788 UseNUMAInterleaving = old_use_numa_interleaving; |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5789 } |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
parents:
12124
diff
changeset
|
5790 #endif // PRODUCT |
|
f7bc2ab5f659
8016825: Large pages for the heap broken on Windows for compressed oops
tschatzl
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diff
changeset
|
5791 |