Mercurial > hg > graal-jvmci-8
annotate src/os/windows/vm/os_windows.cpp @ 12176:88c255656030
8016155: SIGBUS when running Kitchensink with ParallelScavenge and ParallelOld
Summary: When using NUMA and large pages we need to ease the requirement on which node the memory should be allocated on. To avoid the SIGBUS we now use the memory policy MPOL_PREFERRED, which prefers a certain node, instead of MPOL_BIND, which requires a certain node.
Reviewed-by: jmasa, pliden
Contributed-by: stefan.johansson@oracle.com
| author | mgerdin |
|---|---|
| date | Thu, 22 Aug 2013 10:50:41 +0200 |
| parents | 98aa538fd97e |
| children | 3cce976666d9 4c84d351cca9 f92b82d454fa |
| 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; | |
|
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6b803ba47588
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diff
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|
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
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diff
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|
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
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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
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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 } | |
|
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6b803ba47588
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parents:
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diff
changeset
|
2990 |
| 3885 | 2991 bytes_remaining -= bytes_to_rq; |
| 2992 next_alloc_addr += bytes_to_rq; | |
| 2993 count++; | |
| 2994 } | |
|
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6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
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parents:
8057
diff
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|
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:
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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
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parents:
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diff
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|
2997 address pc = CALLER_PC; |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
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diff
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|
2998 if ((flags & MEM_COMMIT) != 0) { |
|
10986
1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
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diff
changeset
|
2999 MemTracker::record_virtual_memory_reserve_and_commit((address)p_buf, bytes, mtNone, pc); |
|
1f4355cee9a2
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diff
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|
3000 } else { |
|
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diff
changeset
|
3001 MemTracker::record_virtual_memory_reserve((address)p_buf, bytes, mtNone, pc); |
|
8711
6b803ba47588
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diff
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|
3002 } |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
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parents:
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diff
changeset
|
3003 |
| 3885 | 3004 // made it this far, success |
| 3005 return p_buf; | |
| 3006 } | |
| 3007 | |
| 3008 | |
| 3009 | |
|
3318
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7040485: Use transparent huge page on linux by default
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diff
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|
3010 void os::large_page_init() { |
|
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
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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
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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
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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
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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
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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
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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 |
| 656 | 3159 char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) { |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3160 |
| 717 | 3161 const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE; |
| 3885 | 3162 const DWORD flags = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 3163 | |
| 3164 // with large pages, there are two cases where we need to use Individual Allocation | |
| 3165 // 1) the UseLargePagesIndividualAllocation flag is set (set by default on WS2003) | |
| 3166 // 2) NUMA Interleaving is enabled, in which case we use a different node for each page | |
| 3167 if (UseLargePagesIndividualAllocation || UseNUMAInterleaving) { | |
|
389
ee21eaa8ffe1
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356
diff
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|
3168 if (TracePageSizes && Verbose) { |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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356
diff
changeset
|
3169 tty->print_cr("Reserving large pages individually."); |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
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356
diff
changeset
|
3170 } |
| 3885 | 3171 char * p_buf = allocate_pages_individually(bytes, addr, flags, prot, LargePagesIndividualAllocationInjectError); |
| 3172 if (p_buf == NULL) { | |
| 3173 // give an appropriate warning message | |
| 3174 if (UseNUMAInterleaving) { | |
| 3175 warning("NUMA large page allocation failed, UseLargePages flag ignored"); | |
| 3176 } | |
| 3177 if (UseLargePagesIndividualAllocation) { | |
| 3178 warning("Individually allocated large pages failed, " | |
| 3179 "use -XX:-UseLargePagesIndividualAllocation to turn off"); | |
| 3180 } | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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356
diff
changeset
|
3181 return NULL; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3182 } |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3183 |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3184 return p_buf; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3185 |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3186 } else { |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
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356
diff
changeset
|
3187 // normal policy just allocate it all at once |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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356
diff
changeset
|
3188 DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES; |
| 717 | 3189 char * res = (char *)VirtualAlloc(NULL, bytes, flag, prot); |
|
8711
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
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8057
diff
changeset
|
3190 if (res != NULL) { |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3191 address pc = CALLER_PC; |
|
10986
1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
zgu
parents:
10969
diff
changeset
|
3192 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
|
3193 } |
|
6b803ba47588
8008257: NMT: assert(new_rec->is_allocation_record()) failed when running with shared memory option
zgu
parents:
8057
diff
changeset
|
3194 |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3195 return res; |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
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356
diff
changeset
|
3196 } |
| 0 | 3197 } |
| 3198 | |
| 3199 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
|
3200 assert(base != NULL, "Sanity check"); |
| 0 | 3201 return release_memory(base, bytes); |
| 3202 } | |
| 3203 | |
| 3204 void os::print_statistics() { | |
| 3205 } | |
| 3206 | |
|
10969
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
dcubed
parents:
10405
diff
changeset
|
3207 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
|
3208 int err = os::get_last_error(); |
|
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|
3209 char buf[256]; |
|
a837fa3d3f86
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diff
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|
3210 size_t buf_len = os::lasterror(buf, sizeof(buf)); |
|
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|
3211 warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT |
|
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diff
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|
3212 ", %d) failed; error='%s' (DOS error/errno=%d)", addr, bytes, |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
3213 exec, buf_len != 0 ? buf : "<no_error_string>", err); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3214 } |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
3215 |
| 6197 | 3216 bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) { |
| 0 | 3217 if (bytes == 0) { |
| 3218 // Don't bother the OS with noops. | |
| 3219 return true; | |
| 3220 } | |
| 3221 assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries"); | |
| 3222 assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks"); | |
| 3223 // Don't attempt to print anything if the OS call fails. We're | |
| 3224 // probably low on resources, so the print itself may cause crashes. | |
| 3885 | 3225 |
| 3226 // unless we have NUMAInterleaving enabled, the range of a commit | |
| 3227 // is always within a reserve covered by a single VirtualAlloc | |
| 3228 // in that case we can just do a single commit for the requested size | |
| 3229 if (!UseNUMAInterleaving) { | |
|
10969
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diff
changeset
|
3230 if (VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) == NULL) { |
|
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|
3231 NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);) |
|
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|
3232 return false; |
|
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diff
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|
3233 } |
| 3885 | 3234 if (exec) { |
| 3235 DWORD oldprot; | |
| 3236 // Windows doc says to use VirtualProtect to get execute permissions | |
|
10969
a837fa3d3f86
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|
3237 if (!VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot)) { |
|
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|
3238 NOT_PRODUCT(warn_fail_commit_memory(addr, bytes, exec);) |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3239 return false; |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
3240 } |
| 3885 | 3241 } |
| 3242 return true; | |
| 656 | 3243 } else { |
| 3885 | 3244 |
| 3245 // when NUMAInterleaving is enabled, the commit might cover a range that | |
| 3246 // came from multiple VirtualAlloc reserves (using allocate_pages_individually). | |
| 3247 // VirtualQuery can help us determine that. The RegionSize that VirtualQuery | |
| 3248 // returns represents the number of bytes that can be committed in one step. | |
| 3249 size_t bytes_remaining = bytes; | |
| 3250 char * next_alloc_addr = addr; | |
| 3251 while (bytes_remaining > 0) { | |
| 3252 MEMORY_BASIC_INFORMATION alloc_info; | |
| 3253 VirtualQuery(next_alloc_addr, &alloc_info, sizeof(alloc_info)); | |
| 3254 size_t bytes_to_rq = MIN2(bytes_remaining, (size_t)alloc_info.RegionSize); | |
|
10969
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|
3255 if (VirtualAlloc(next_alloc_addr, bytes_to_rq, MEM_COMMIT, |
|
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diff
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|
3256 PAGE_READWRITE) == NULL) { |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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|
3257 NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq, |
|
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|
3258 exec);) |
| 3885 | 3259 return false; |
|
10969
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|
3260 } |
| 3885 | 3261 if (exec) { |
| 3262 DWORD oldprot; | |
|
10969
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|
3263 if (!VirtualProtect(next_alloc_addr, bytes_to_rq, |
|
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diff
changeset
|
3264 PAGE_EXECUTE_READWRITE, &oldprot)) { |
|
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|
3265 NOT_PRODUCT(warn_fail_commit_memory(next_alloc_addr, bytes_to_rq, |
|
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|
3266 exec);) |
| 3885 | 3267 return false; |
|
10969
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diff
changeset
|
3268 } |
| 3885 | 3269 } |
| 3270 bytes_remaining -= bytes_to_rq; | |
| 3271 next_alloc_addr += bytes_to_rq; | |
| 3272 } | |
| 3273 } | |
| 3274 // if we made it this far, return true | |
| 3275 return true; | |
| 0 | 3276 } |
| 3277 | |
| 6197 | 3278 bool os::pd_commit_memory(char* addr, size_t size, size_t alignment_hint, |
| 656 | 3279 bool exec) { |
|
10969
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diff
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|
3280 // alignment_hint is ignored on this OS |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3281 return pd_commit_memory(addr, size, exec); |
|
a837fa3d3f86
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|
3282 } |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
3283 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3284 void os::pd_commit_memory_or_exit(char* addr, size_t size, bool exec, |
|
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8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
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|
3285 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3286 assert(mesg != NULL, "mesg must be specified"); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3287 if (!pd_commit_memory(addr, size, exec)) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3288 warn_fail_commit_memory(addr, size, exec); |
|
a837fa3d3f86
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diff
changeset
|
3289 vm_exit_out_of_memory(size, OOM_MMAP_ERROR, mesg); |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3290 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3291 } |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3292 |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3293 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
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diff
changeset
|
3294 size_t alignment_hint, bool exec, |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3295 const char* mesg) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3296 // alignment_hint is ignored on this OS |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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diff
changeset
|
3297 pd_commit_memory_or_exit(addr, size, exec, mesg); |
| 0 | 3298 } |
| 3299 | |
| 6197 | 3300 bool os::pd_uncommit_memory(char* addr, size_t bytes) { |
| 0 | 3301 if (bytes == 0) { |
| 3302 // Don't bother the OS with noops. | |
| 3303 return true; | |
| 3304 } | |
| 3305 assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries"); | |
| 3306 assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks"); | |
| 6197 | 3307 return (VirtualFree(addr, bytes, MEM_DECOMMIT) != 0); |
| 3308 } | |
| 3309 | |
| 3310 bool os::pd_release_memory(char* addr, size_t bytes) { | |
| 0 | 3311 return VirtualFree(addr, 0, MEM_RELEASE) != 0; |
| 3312 } | |
| 3313 | |
| 6197 | 3314 bool os::pd_create_stack_guard_pages(char* addr, size_t size) { |
|
10969
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diff
changeset
|
3315 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
|
3316 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3317 |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3318 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
|
3319 return os::uncommit_memory(addr, size); |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3320 } |
|
3b3d12e645e7
6929067: Stack guard pages should be removed when thread is detached
coleenp
parents:
1215
diff
changeset
|
3321 |
|
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3322 // Set protections specified |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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diff
changeset
|
3323 bool os::protect_memory(char* addr, size_t bytes, ProtType prot, |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3324 bool is_committed) { |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3325 unsigned int p = 0; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3326 switch (prot) { |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3327 case MEM_PROT_NONE: p = PAGE_NOACCESS; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3328 case MEM_PROT_READ: p = PAGE_READONLY; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3329 case MEM_PROT_RW: p = PAGE_READWRITE; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3330 case MEM_PROT_RWX: p = PAGE_EXECUTE_READWRITE; break; |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
parents:
196
diff
changeset
|
3331 default: |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3332 ShouldNotReachHere(); |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3333 } |
|
1fdb98a17101
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coleenp
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196
diff
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|
3334 |
| 0 | 3335 DWORD old_status; |
|
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3336 |
|
1fdb98a17101
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coleenp
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196
diff
changeset
|
3337 // Strange enough, but on Win32 one can change protection only for committed |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
coleenp
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196
diff
changeset
|
3338 // memory, not a big deal anyway, as bytes less or equal than 64K |
|
10969
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diff
changeset
|
3339 if (!is_committed) { |
|
a837fa3d3f86
8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
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parents:
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diff
changeset
|
3340 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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changeset
|
3341 "cannot commit protection page"); |
|
237
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3342 } |
|
1fdb98a17101
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diff
changeset
|
3343 // One cannot use os::guard_memory() here, as on Win32 guard page |
|
1fdb98a17101
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diff
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|
3344 // have different (one-shot) semantics, from MSDN on PAGE_GUARD: |
|
1fdb98a17101
6716785: implicit null checks not triggering with CompressedOops
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196
diff
changeset
|
3345 // |
|
1fdb98a17101
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196
diff
changeset
|
3346 // Pages in the region become guard pages. Any attempt to access a guard page |
|
1fdb98a17101
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diff
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|
3347 // causes the system to raise a STATUS_GUARD_PAGE exception and turn off |
|
1fdb98a17101
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196
diff
changeset
|
3348 // the guard page status. Guard pages thus act as a one-time access alarm. |
|
1fdb98a17101
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196
diff
changeset
|
3349 return VirtualProtect(addr, bytes, p, &old_status) != 0; |
| 0 | 3350 } |
| 3351 | |
| 3352 bool os::guard_memory(char* addr, size_t bytes) { | |
| 3353 DWORD old_status; | |
|
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
467
diff
changeset
|
3354 return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0; |
| 0 | 3355 } |
| 3356 | |
| 3357 bool os::unguard_memory(char* addr, size_t bytes) { | |
| 3358 DWORD old_status; | |
|
477
24fda36852ce
6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents:
467
diff
changeset
|
3359 return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0; |
| 0 | 3360 } |
| 3361 | |
| 6197 | 3362 void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) { } |
| 3363 void os::pd_free_memory(char *addr, size_t bytes, size_t alignment_hint) { } | |
| 0 | 3364 void os::numa_make_global(char *addr, size_t bytes) { } |
| 141 | 3365 void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) { } |
| 0 | 3366 bool os::numa_topology_changed() { return false; } |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3367 size_t os::numa_get_groups_num() { return MAX2(numa_node_list_holder.get_count(), 1); } |
| 0 | 3368 int os::numa_get_group_id() { return 0; } |
| 3369 size_t os::numa_get_leaf_groups(int *ids, size_t size) { | |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3370 if (numa_node_list_holder.get_count() == 0 && size > 0) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3371 // Provide an answer for UMA systems |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3372 ids[0] = 0; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3373 return 1; |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
3374 } else { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
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3885
diff
changeset
|
3375 // check for size bigger than actual groups_num |
|
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|
3376 size = MIN2(size, numa_get_groups_num()); |
|
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|
3377 for (int i = 0; i < (int)size; i++) { |
|
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|
3378 ids[i] = numa_node_list_holder.get_node_list_entry(i); |
|
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|
3379 } |
|
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|
3380 return size; |
|
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|
3381 } |
| 0 | 3382 } |
| 3383 | |
| 3384 bool os::get_page_info(char *start, page_info* info) { | |
| 3385 return false; | |
| 3386 } | |
| 3387 | |
| 3388 char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) { | |
| 3389 return end; | |
| 3390 } | |
| 3391 | |
| 3392 char* os::non_memory_address_word() { | |
| 3393 // Must never look like an address returned by reserve_memory, | |
| 3394 // even in its subfields (as defined by the CPU immediate fields, | |
| 3395 // if the CPU splits constants across multiple instructions). | |
| 3396 return (char*)-1; | |
| 3397 } | |
| 3398 | |
| 3399 #define MAX_ERROR_COUNT 100 | |
| 3400 #define SYS_THREAD_ERROR 0xffffffffUL | |
| 3401 | |
| 3402 void os::pd_start_thread(Thread* thread) { | |
| 3403 DWORD ret = ResumeThread(thread->osthread()->thread_handle()); | |
| 3404 // Returns previous suspend state: | |
| 3405 // 0: Thread was not suspended | |
| 3406 // 1: Thread is running now | |
| 3407 // >1: Thread is still suspended. | |
| 3408 assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back | |
| 3409 } | |
| 3410 | |
|
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|
3411 class HighResolutionInterval : public CHeapObj<mtThread> { |
| 0 | 3412 // The default timer resolution seems to be 10 milliseconds. |
| 3413 // (Where is this written down?) | |
| 3414 // If someone wants to sleep for only a fraction of the default, | |
| 3415 // then we set the timer resolution down to 1 millisecond for | |
| 3416 // the duration of their interval. | |
| 3417 // We carefully set the resolution back, since otherwise we | |
| 3418 // seem to incur an overhead (3%?) that we don't need. | |
| 3419 // CONSIDER: if ms is small, say 3, then we should run with a high resolution time. | |
| 3420 // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod(). | |
| 3421 // Alternatively, we could compute the relative error (503/500 = .6%) and only use | |
| 3422 // timeBeginPeriod() if the relative error exceeded some threshold. | |
| 3423 // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and | |
| 3424 // to decreased efficiency related to increased timer "tick" rates. We want to minimize | |
| 3425 // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high | |
| 3426 // resolution timers running. | |
| 3427 private: | |
| 3428 jlong resolution; | |
| 3429 public: | |
| 3430 HighResolutionInterval(jlong ms) { | |
| 3431 resolution = ms % 10L; | |
| 3432 if (resolution != 0) { | |
| 3433 MMRESULT result = timeBeginPeriod(1L); | |
| 3434 } | |
| 3435 } | |
| 3436 ~HighResolutionInterval() { | |
| 3437 if (resolution != 0) { | |
| 3438 MMRESULT result = timeEndPeriod(1L); | |
| 3439 } | |
| 3440 resolution = 0L; | |
| 3441 } | |
| 3442 }; | |
| 3443 | |
| 3444 int os::sleep(Thread* thread, jlong ms, bool interruptable) { | |
| 3445 jlong limit = (jlong) MAXDWORD; | |
| 3446 | |
| 3447 while(ms > limit) { | |
| 3448 int res; | |
| 3449 if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT) | |
| 3450 return res; | |
| 3451 ms -= limit; | |
| 3452 } | |
| 3453 | |
| 3454 assert(thread == Thread::current(), "thread consistency check"); | |
| 3455 OSThread* osthread = thread->osthread(); | |
| 3456 OSThreadWaitState osts(osthread, false /* not Object.wait() */); | |
| 3457 int result; | |
| 3458 if (interruptable) { | |
| 3459 assert(thread->is_Java_thread(), "must be java thread"); | |
| 3460 JavaThread *jt = (JavaThread *) thread; | |
| 3461 ThreadBlockInVM tbivm(jt); | |
| 3462 | |
| 3463 jt->set_suspend_equivalent(); | |
| 3464 // cleared by handle_special_suspend_equivalent_condition() or | |
| 3465 // java_suspend_self() via check_and_wait_while_suspended() | |
| 3466 | |
| 3467 HANDLE events[1]; | |
| 3468 events[0] = osthread->interrupt_event(); | |
| 3469 HighResolutionInterval *phri=NULL; | |
| 3470 if(!ForceTimeHighResolution) | |
| 3471 phri = new HighResolutionInterval( ms ); | |
| 3472 if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) { | |
| 3473 result = OS_TIMEOUT; | |
| 3474 } else { | |
| 3475 ResetEvent(osthread->interrupt_event()); | |
| 3476 osthread->set_interrupted(false); | |
| 3477 result = OS_INTRPT; | |
| 3478 } | |
| 3479 delete phri; //if it is NULL, harmless | |
| 3480 | |
| 3481 // were we externally suspended while we were waiting? | |
| 3482 jt->check_and_wait_while_suspended(); | |
| 3483 } else { | |
| 3484 assert(!thread->is_Java_thread(), "must not be java thread"); | |
| 3485 Sleep((long) ms); | |
| 3486 result = OS_TIMEOUT; | |
| 3487 } | |
| 3488 return result; | |
| 3489 } | |
| 3490 | |
| 3491 // Sleep forever; naked call to OS-specific sleep; use with CAUTION | |
| 3492 void os::infinite_sleep() { | |
| 3493 while (true) { // sleep forever ... | |
| 3494 Sleep(100000); // ... 100 seconds at a time | |
| 3495 } | |
| 3496 } | |
| 3497 | |
| 3498 typedef BOOL (WINAPI * STTSignature)(void) ; | |
| 3499 | |
| 3500 os::YieldResult os::NakedYield() { | |
| 3501 // Use either SwitchToThread() or Sleep(0) | |
| 3502 // Consider passing back the return value from SwitchToThread(). | |
|
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|
3503 if (os::Kernel32Dll::SwitchToThreadAvailable()) { |
|
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|
3504 return SwitchToThread() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ; |
| 0 | 3505 } else { |
|
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|
3506 Sleep(0); |
| 0 | 3507 } |
| 3508 return os::YIELD_UNKNOWN ; | |
| 3509 } | |
| 3510 | |
| 3511 void os::yield() { os::NakedYield(); } | |
| 3512 | |
| 3513 void os::yield_all(int attempts) { | |
| 3514 // Yields to all threads, including threads with lower priorities | |
| 3515 Sleep(1); | |
| 3516 } | |
| 3517 | |
| 3518 // Win32 only gives you access to seven real priorities at a time, | |
| 3519 // so we compress Java's ten down to seven. It would be better | |
| 3520 // if we dynamically adjusted relative priorities. | |
| 3521 | |
|
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|
3522 int os::java_to_os_priority[CriticalPriority + 1] = { |
| 0 | 3523 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3524 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3525 THREAD_PRIORITY_LOWEST, // 2 | |
| 3526 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3527 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3528 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3529 THREAD_PRIORITY_NORMAL, // 6 | |
| 3530 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3531 THREAD_PRIORITY_ABOVE_NORMAL, // 8 | |
| 3532 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
4854
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|
3533 THREAD_PRIORITY_HIGHEST, // 10 MaxPriority |
|
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|
3534 THREAD_PRIORITY_HIGHEST // 11 CriticalPriority |
| 0 | 3535 }; |
| 3536 | |
|
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|
3537 int prio_policy1[CriticalPriority + 1] = { |
| 0 | 3538 THREAD_PRIORITY_IDLE, // 0 Entry should never be used |
| 3539 THREAD_PRIORITY_LOWEST, // 1 MinPriority | |
| 3540 THREAD_PRIORITY_LOWEST, // 2 | |
| 3541 THREAD_PRIORITY_BELOW_NORMAL, // 3 | |
| 3542 THREAD_PRIORITY_BELOW_NORMAL, // 4 | |
| 3543 THREAD_PRIORITY_NORMAL, // 5 NormPriority | |
| 3544 THREAD_PRIORITY_ABOVE_NORMAL, // 6 | |
| 3545 THREAD_PRIORITY_ABOVE_NORMAL, // 7 | |
| 3546 THREAD_PRIORITY_HIGHEST, // 8 | |
| 3547 THREAD_PRIORITY_HIGHEST, // 9 NearMaxPriority | |
|
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|
3548 THREAD_PRIORITY_TIME_CRITICAL, // 10 MaxPriority |
|
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|
3549 THREAD_PRIORITY_TIME_CRITICAL // 11 CriticalPriority |
| 0 | 3550 }; |
| 3551 | |
| 3552 static int prio_init() { | |
| 3553 // If ThreadPriorityPolicy is 1, switch tables | |
| 3554 if (ThreadPriorityPolicy == 1) { | |
| 3555 int i; | |
|
4854
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|
3556 for (i = 0; i < CriticalPriority + 1; i++) { |
| 0 | 3557 os::java_to_os_priority[i] = prio_policy1[i]; |
| 3558 } | |
| 3559 } | |
|
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|
3560 if (UseCriticalJavaThreadPriority) { |
|
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|
3561 os::java_to_os_priority[MaxPriority] = os::java_to_os_priority[CriticalPriority] ; |
|
de268c8a8075
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|
3562 } |
| 0 | 3563 return 0; |
| 3564 } | |
| 3565 | |
| 3566 OSReturn os::set_native_priority(Thread* thread, int priority) { | |
| 3567 if (!UseThreadPriorities) return OS_OK; | |
| 3568 bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0; | |
| 3569 return ret ? OS_OK : OS_ERR; | |
| 3570 } | |
| 3571 | |
| 3572 OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) { | |
| 3573 if ( !UseThreadPriorities ) { | |
| 3574 *priority_ptr = java_to_os_priority[NormPriority]; | |
| 3575 return OS_OK; | |
| 3576 } | |
| 3577 int os_prio = GetThreadPriority(thread->osthread()->thread_handle()); | |
| 3578 if (os_prio == THREAD_PRIORITY_ERROR_RETURN) { | |
| 3579 assert(false, "GetThreadPriority failed"); | |
| 3580 return OS_ERR; | |
| 3581 } | |
| 3582 *priority_ptr = os_prio; | |
| 3583 return OS_OK; | |
| 3584 } | |
| 3585 | |
| 3586 | |
| 3587 // Hint to the underlying OS that a task switch would not be good. | |
| 3588 // Void return because it's a hint and can fail. | |
| 3589 void os::hint_no_preempt() {} | |
| 3590 | |
| 3591 void os::interrupt(Thread* thread) { | |
| 3592 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3593 "possibility of dangling Thread pointer"); | |
| 3594 | |
| 3595 OSThread* osthread = thread->osthread(); | |
| 3596 osthread->set_interrupted(true); | |
| 3597 // More than one thread can get here with the same value of osthread, | |
| 3598 // resulting in multiple notifications. We do, however, want the store | |
| 3599 // to interrupted() to be visible to other threads before we post | |
| 3600 // the interrupt event. | |
| 3601 OrderAccess::release(); | |
| 3602 SetEvent(osthread->interrupt_event()); | |
| 3603 // For JSR166: unpark after setting status | |
| 3604 if (thread->is_Java_thread()) | |
| 3605 ((JavaThread*)thread)->parker()->unpark(); | |
| 3606 | |
| 3607 ParkEvent * ev = thread->_ParkEvent ; | |
| 3608 if (ev != NULL) ev->unpark() ; | |
| 3609 | |
| 3610 } | |
| 3611 | |
| 3612 | |
| 3613 bool os::is_interrupted(Thread* thread, bool clear_interrupted) { | |
| 3614 assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(), | |
| 3615 "possibility of dangling Thread pointer"); | |
| 3616 | |
| 3617 OSThread* osthread = thread->osthread(); | |
|
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dholmes
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|
3618 bool interrupted = osthread->interrupted(); |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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|
3619 // There is no synchronization between the setting of the interrupt |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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diff
changeset
|
3620 // 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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diff
changeset
|
3621 // we only clear the interrupt state, and reset the interrupt event, |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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diff
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|
3622 // if we are going to report that we were indeed interrupted - else |
|
083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
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diff
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|
3623 // an interrupt can be "lost", leading to spurious wakeups or lost wakeups |
|
083f13976b51
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dholmes
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diff
changeset
|
3624 // depending on the timing |
|
083f13976b51
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diff
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|
3625 if (interrupted && clear_interrupted) { |
| 0 | 3626 osthread->set_interrupted(false); |
| 3627 ResetEvent(osthread->interrupt_event()); | |
| 3628 } // Otherwise leave the interrupted state alone | |
| 3629 | |
| 3630 return interrupted; | |
| 3631 } | |
| 3632 | |
| 3633 // Get's a pc (hint) for a running thread. Currently used only for profiling. | |
| 3634 ExtendedPC os::get_thread_pc(Thread* thread) { | |
| 3635 CONTEXT context; | |
| 3636 context.ContextFlags = CONTEXT_CONTROL; | |
| 3637 HANDLE handle = thread->osthread()->thread_handle(); | |
| 3638 #ifdef _M_IA64 | |
| 3639 assert(0, "Fix get_thread_pc"); | |
| 3640 return ExtendedPC(NULL); | |
| 3641 #else | |
| 3642 if (GetThreadContext(handle, &context)) { | |
| 3643 #ifdef _M_AMD64 | |
| 3644 return ExtendedPC((address) context.Rip); | |
| 3645 #else | |
| 3646 return ExtendedPC((address) context.Eip); | |
| 3647 #endif | |
| 3648 } else { | |
| 3649 return ExtendedPC(NULL); | |
| 3650 } | |
| 3651 #endif | |
| 3652 } | |
| 3653 | |
| 3654 // GetCurrentThreadId() returns DWORD | |
| 3655 intx os::current_thread_id() { return GetCurrentThreadId(); } | |
| 3656 | |
| 3657 static int _initial_pid = 0; | |
| 3658 | |
| 3659 int os::current_process_id() | |
| 3660 { | |
| 3661 return (_initial_pid ? _initial_pid : _getpid()); | |
| 3662 } | |
| 3663 | |
| 3664 int os::win32::_vm_page_size = 0; | |
| 3665 int os::win32::_vm_allocation_granularity = 0; | |
| 3666 int os::win32::_processor_type = 0; | |
| 3667 // Processor level is not available on non-NT systems, use vm_version instead | |
| 3668 int os::win32::_processor_level = 0; | |
| 3669 julong os::win32::_physical_memory = 0; | |
| 3670 size_t os::win32::_default_stack_size = 0; | |
| 3671 | |
| 3672 intx os::win32::_os_thread_limit = 0; | |
| 3673 volatile intx os::win32::_os_thread_count = 0; | |
| 3674 | |
| 3675 bool os::win32::_is_nt = false; | |
|
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|
3676 bool os::win32::_is_windows_2003 = false; |
|
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|
3677 bool os::win32::_is_windows_server = false; |
| 0 | 3678 |
| 3679 void os::win32::initialize_system_info() { | |
| 3680 SYSTEM_INFO si; | |
| 3681 GetSystemInfo(&si); | |
| 3682 _vm_page_size = si.dwPageSize; | |
| 3683 _vm_allocation_granularity = si.dwAllocationGranularity; | |
| 3684 _processor_type = si.dwProcessorType; | |
| 3685 _processor_level = si.wProcessorLevel; | |
|
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|
3686 set_processor_count(si.dwNumberOfProcessors); |
| 0 | 3687 |
|
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|
3688 MEMORYSTATUSEX ms; |
|
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|
3689 ms.dwLength = sizeof(ms); |
|
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|
3690 |
| 0 | 3691 // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual, |
| 3692 // dwMemoryLoad (% of memory in use) | |
|
877
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|
3693 GlobalMemoryStatusEx(&ms); |
|
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|
3694 _physical_memory = ms.ullTotalPhys; |
| 0 | 3695 |
|
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|
3696 OSVERSIONINFOEX oi; |
|
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changeset
|
3697 oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); |
|
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changeset
|
3698 GetVersionEx((OSVERSIONINFO*)&oi); |
| 0 | 3699 switch(oi.dwPlatformId) { |
| 3700 case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break; | |
|
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|
3701 case VER_PLATFORM_WIN32_NT: |
|
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|
3702 _is_nt = true; |
|
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|
3703 { |
|
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|
3704 int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion; |
|
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|
3705 if (os_vers == 5002) { |
|
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|
3706 _is_windows_2003 = true; |
|
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|
3707 } |
|
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|
3708 if (oi.wProductType == VER_NT_DOMAIN_CONTROLLER || |
|
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|
3709 oi.wProductType == VER_NT_SERVER) { |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3710 _is_windows_server = true; |
|
63d374c54045
7014918: Improve core/minidump handling in Hotspot
ctornqvi
parents:
2130
diff
changeset
|
3711 } |
|
389
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6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
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diff
changeset
|
3712 } |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
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|
3713 break; |
| 0 | 3714 default: fatal("Unknown platform"); |
| 3715 } | |
| 3716 | |
| 3717 _default_stack_size = os::current_stack_size(); | |
| 3718 assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size"); | |
| 3719 assert((_default_stack_size & (_vm_page_size - 1)) == 0, | |
| 3720 "stack size not a multiple of page size"); | |
| 3721 | |
| 3722 initialize_performance_counter(); | |
| 3723 | |
| 3724 // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is | |
| 3725 // known to deadlock the system, if the VM issues to thread operations with | |
| 3726 // a too high frequency, e.g., such as changing the priorities. | |
| 3727 // The 6000 seems to work well - no deadlocks has been notices on the test | |
| 3728 // programs that we have seen experience this problem. | |
| 3729 if (!os::win32::is_nt()) { | |
| 3730 StarvationMonitorInterval = 6000; | |
| 3731 } | |
| 3732 } | |
| 3733 | |
| 3734 | |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3735 HINSTANCE os::win32::load_Windows_dll(const char* name, char *ebuf, int ebuflen) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3736 char path[MAX_PATH]; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3737 DWORD size; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3738 DWORD pathLen = (DWORD)sizeof(path); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3739 HINSTANCE result = NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3740 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3741 // only allow library name without path component |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3742 assert(strchr(name, '\\') == NULL, "path not allowed"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3743 assert(strchr(name, ':') == NULL, "path not allowed"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3744 if (strchr(name, '\\') != NULL || strchr(name, ':') != NULL) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3745 jio_snprintf(ebuf, ebuflen, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3746 "Invalid parameter while calling os::win32::load_windows_dll(): cannot take path: %s", name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3747 return NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3748 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3749 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3750 // search system directory |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3751 if ((size = GetSystemDirectory(path, pathLen)) > 0) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3752 strcat(path, "\\"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3753 strcat(path, name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3754 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3755 return result; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3756 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3757 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3758 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3759 // try Windows directory |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3760 if ((size = GetWindowsDirectory(path, pathLen)) > 0) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3761 strcat(path, "\\"); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3762 strcat(path, name); |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3763 if ((result = (HINSTANCE)os::dll_load(path, ebuf, ebuflen)) != NULL) { |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3764 return result; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3765 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3766 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3767 |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3768 jio_snprintf(ebuf, ebuflen, |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3769 "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
|
3770 return NULL; |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3771 } |
|
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
3772 |
| 0 | 3773 void os::win32::setmode_streams() { |
| 3774 _setmode(_fileno(stdin), _O_BINARY); | |
| 3775 _setmode(_fileno(stdout), _O_BINARY); | |
| 3776 _setmode(_fileno(stderr), _O_BINARY); | |
| 3777 } | |
| 3778 | |
| 3779 | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3780 bool os::is_debugger_attached() { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3781 return IsDebuggerPresent() ? true : false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3782 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3783 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3784 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3785 void os::wait_for_keypress_at_exit(void) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3786 if (PauseAtExit) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3787 fprintf(stderr, "Press any key to continue...\n"); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3788 fgetc(stdin); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3789 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3790 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3791 |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2205
diff
changeset
|
3792 |
| 0 | 3793 int os::message_box(const char* title, const char* message) { |
| 3794 int result = MessageBox(NULL, message, title, | |
| 3795 MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY); | |
| 3796 return result == IDYES; | |
| 3797 } | |
| 3798 | |
| 3799 int os::allocate_thread_local_storage() { | |
| 3800 return TlsAlloc(); | |
| 3801 } | |
| 3802 | |
| 3803 | |
| 3804 void os::free_thread_local_storage(int index) { | |
| 3805 TlsFree(index); | |
| 3806 } | |
| 3807 | |
| 3808 | |
| 3809 void os::thread_local_storage_at_put(int index, void* value) { | |
| 3810 TlsSetValue(index, value); | |
| 3811 assert(thread_local_storage_at(index) == value, "Just checking"); | |
| 3812 } | |
| 3813 | |
| 3814 | |
| 3815 void* os::thread_local_storage_at(int index) { | |
| 3816 return TlsGetValue(index); | |
| 3817 } | |
| 3818 | |
| 3819 | |
| 3820 #ifndef PRODUCT | |
| 3821 #ifndef _WIN64 | |
| 3822 // Helpers to check whether NX protection is enabled | |
| 3823 int nx_exception_filter(_EXCEPTION_POINTERS *pex) { | |
| 3824 if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION && | |
| 3825 pex->ExceptionRecord->NumberParameters > 0 && | |
| 3826 pex->ExceptionRecord->ExceptionInformation[0] == | |
| 3827 EXCEPTION_INFO_EXEC_VIOLATION) { | |
| 3828 return EXCEPTION_EXECUTE_HANDLER; | |
| 3829 } | |
| 3830 return EXCEPTION_CONTINUE_SEARCH; | |
| 3831 } | |
| 3832 | |
| 3833 void nx_check_protection() { | |
| 3834 // If NX is enabled we'll get an exception calling into code on the stack | |
| 3835 char code[] = { (char)0xC3 }; // ret | |
| 3836 void *code_ptr = (void *)code; | |
| 3837 __try { | |
| 3838 __asm call code_ptr | |
| 3839 } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) { | |
| 3840 tty->print_raw_cr("NX protection detected."); | |
| 3841 } | |
| 3842 } | |
| 3843 #endif // _WIN64 | |
| 3844 #endif // PRODUCT | |
| 3845 | |
| 3846 // this is called _before_ the global arguments have been parsed | |
| 3847 void os::init(void) { | |
| 3848 _initial_pid = _getpid(); | |
| 3849 | |
| 3850 init_random(1234567); | |
| 3851 | |
| 3852 win32::initialize_system_info(); | |
| 3853 win32::setmode_streams(); | |
| 3854 init_page_sizes((size_t) win32::vm_page_size()); | |
| 3855 | |
| 3856 // For better scalability on MP systems (must be called after initialize_system_info) | |
| 3857 #ifndef PRODUCT | |
| 3858 if (is_MP()) { | |
| 3859 NoYieldsInMicrolock = true; | |
| 3860 } | |
| 3861 #endif | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3862 // This may be overridden later when argument processing is done. |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3863 FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation, |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3864 os::win32::is_windows_2003()); |
|
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3865 |
| 0 | 3866 // Initialize main_process and main_thread |
| 3867 main_process = GetCurrentProcess(); // Remember main_process is a pseudo handle | |
|
389
ee21eaa8ffe1
6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents:
356
diff
changeset
|
3868 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process, |
| 0 | 3869 &main_thread, THREAD_ALL_ACCESS, false, 0)) { |
| 3870 fatal("DuplicateHandle failed\n"); | |
| 3871 } | |
| 3872 main_thread_id = (int) GetCurrentThreadId(); | |
| 3873 } | |
| 3874 | |
| 3875 // To install functions for atexit processing | |
| 3876 extern "C" { | |
| 3877 static void perfMemory_exit_helper() { | |
| 3878 perfMemory_exit(); | |
| 3879 } | |
| 3880 } | |
| 3881 | |
| 8872 | 3882 static jint initSock(); |
| 3883 | |
| 0 | 3884 // this is called _after_ the global arguments have been parsed |
| 3885 jint os::init_2(void) { | |
| 3886 // Allocate a single page and mark it as readable for safepoint polling | |
| 3887 address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY); | |
| 3888 guarantee( polling_page != NULL, "Reserve Failed for polling page"); | |
| 3889 | |
| 3890 address return_page = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY); | |
| 3891 guarantee( return_page != NULL, "Commit Failed for polling page"); | |
| 3892 | |
| 3893 os::set_polling_page( polling_page ); | |
| 3894 | |
| 3895 #ifndef PRODUCT | |
| 3896 if( Verbose && PrintMiscellaneous ) | |
| 3897 tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page); | |
| 3898 #endif | |
| 3899 | |
| 3900 if (!UseMembar) { | |
| 656 | 3901 address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE); |
| 0 | 3902 guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page"); |
| 3903 | |
| 656 | 3904 return_page = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE); |
| 0 | 3905 guarantee( return_page != NULL, "Commit Failed for memory serialize page"); |
| 3906 | |
| 3907 os::set_memory_serialize_page( mem_serialize_page ); | |
| 3908 | |
| 3909 #ifndef PRODUCT | |
| 3910 if(Verbose && PrintMiscellaneous) | |
| 3911 tty->print("[Memory Serialize Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page); | |
| 3912 #endif | |
| 3885 | 3913 } |
| 0 | 3914 |
|
3318
188c9a5d6a6d
7040485: Use transparent huge page on linux by default
iveresov
parents:
3240
diff
changeset
|
3915 os::large_page_init(); |
| 0 | 3916 |
| 3917 // Setup Windows Exceptions | |
| 3918 | |
| 3919 // for debugging float code generation bugs | |
| 3920 if (ForceFloatExceptions) { | |
| 3921 #ifndef _WIN64 | |
| 3922 static long fp_control_word = 0; | |
| 3923 __asm { fstcw fp_control_word } | |
| 3924 // see Intel PPro Manual, Vol. 2, p 7-16 | |
| 3925 const long precision = 0x20; | |
| 3926 const long underflow = 0x10; | |
| 3927 const long overflow = 0x08; | |
| 3928 const long zero_div = 0x04; | |
| 3929 const long denorm = 0x02; | |
| 3930 const long invalid = 0x01; | |
| 3931 fp_control_word |= invalid; | |
| 3932 __asm { fldcw fp_control_word } | |
| 3933 #endif | |
| 3934 } | |
| 3935 | |
| 3936 // If stack_commit_size is 0, windows will reserve the default size, | |
| 3937 // but only commit a small portion of it. | |
| 3938 size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size()); | |
| 3939 size_t default_reserve_size = os::win32::default_stack_size(); | |
| 3940 size_t actual_reserve_size = stack_commit_size; | |
| 3941 if (stack_commit_size < default_reserve_size) { | |
| 3942 // If stack_commit_size == 0, we want this too | |
| 3943 actual_reserve_size = default_reserve_size; | |
| 3944 } | |
| 3945 | |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3946 // 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
|
3947 // the java system classes, including StackOverflowError - depends on page |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3948 // 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
|
3949 // 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
|
3950 // class initialization depending on 32 or 64 bit VM. |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3951 size_t min_stack_allowed = |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3952 (size_t)(StackYellowPages+StackRedPages+StackShadowPages+ |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3953 2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size(); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3954 if (actual_reserve_size < min_stack_allowed) { |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3955 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
|
3956 "Specify at least %dk", |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3957 min_stack_allowed / K); |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3958 return JNI_ERR; |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3959 } |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1865
diff
changeset
|
3960 |
| 0 | 3961 JavaThread::set_stack_size_at_create(stack_commit_size); |
| 3962 | |
| 3963 // Calculate theoretical max. size of Threads to guard gainst artifical | |
| 3964 // out-of-memory situations, where all available address-space has been | |
| 3965 // reserved by thread stacks. | |
| 3966 assert(actual_reserve_size != 0, "Must have a stack"); | |
| 3967 | |
| 3968 // Calculate the thread limit when we should start doing Virtual Memory | |
| 3969 // banging. Currently when the threads will have used all but 200Mb of space. | |
| 3970 // | |
| 3971 // TODO: consider performing a similar calculation for commit size instead | |
| 3972 // as reserve size, since on a 64-bit platform we'll run into that more | |
| 3973 // often than running out of virtual memory space. We can use the | |
| 3974 // lower value of the two calculations as the os_thread_limit. | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
79
diff
changeset
|
3975 size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K); |
| 0 | 3976 win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size); |
| 3977 | |
| 3978 // at exit methods are called in the reverse order of their registration. | |
| 3979 // there is no limit to the number of functions registered. atexit does | |
| 3980 // not set errno. | |
| 3981 | |
| 3982 if (PerfAllowAtExitRegistration) { | |
| 3983 // only register atexit functions if PerfAllowAtExitRegistration is set. | |
| 3984 // atexit functions can be delayed until process exit time, which | |
| 3985 // can be problematic for embedded VM situations. Embedded VMs should | |
| 3986 // call DestroyJavaVM() to assure that VM resources are released. | |
| 3987 | |
| 3988 // note: perfMemory_exit_helper atexit function may be removed in | |
| 3989 // the future if the appropriate cleanup code can be added to the | |
| 3990 // VM_Exit VMOperation's doit method. | |
| 3991 if (atexit(perfMemory_exit_helper) != 0) { | |
| 3992 warning("os::init_2 atexit(perfMemory_exit_helper) failed"); | |
| 3993 } | |
| 3994 } | |
| 3995 | |
| 3996 #ifndef _WIN64 | |
| 3997 // Print something if NX is enabled (win32 on AMD64) | |
| 3998 NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection()); | |
| 3999 #endif | |
| 4000 | |
| 4001 // initialize thread priority policy | |
| 4002 prio_init(); | |
| 4003 | |
|
3918
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4004 if (UseNUMA && !ForceNUMA) { |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4005 UseNUMA = false; // We don't fully support this yet |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4006 } |
|
a6128a8ed624
7086226: UseNUMA fails on old versions of windows
iveresov
parents:
3885
diff
changeset
|
4007 |
| 3885 | 4008 if (UseNUMAInterleaving) { |
| 4009 // first check whether this Windows OS supports VirtualAllocExNuma, if not ignore this flag | |
| 4010 bool success = numa_interleaving_init(); | |
| 4011 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
|
4012 } |
|
85f1b9537f70
6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents:
389
diff
changeset
|
4013 |
| 8872 | 4014 if (initSock() != JNI_OK) { |
| 4015 return JNI_ERR; | |
| 4016 } | |
| 4017 | |
| 0 | 4018 return JNI_OK; |
| 4019 } | |
| 4020 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4021 void os::init_3(void) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4022 return; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
4023 } |
| 0 | 4024 |
| 4025 // Mark the polling page as unreadable | |
| 4026 void os::make_polling_page_unreadable(void) { | |
| 4027 DWORD old_status; | |
| 4028 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) ) | |
| 4029 fatal("Could not disable polling page"); | |
| 4030 }; | |
| 4031 | |
| 4032 // Mark the polling page as readable | |
| 4033 void os::make_polling_page_readable(void) { | |
| 4034 DWORD old_status; | |
| 4035 if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) ) | |
| 4036 fatal("Could not enable polling page"); | |
| 4037 }; | |
| 4038 | |
| 4039 | |
| 4040 int os::stat(const char *path, struct stat *sbuf) { | |
| 4041 char pathbuf[MAX_PATH]; | |
| 4042 if (strlen(path) > MAX_PATH - 1) { | |
| 4043 errno = ENAMETOOLONG; | |
| 4044 return -1; | |
| 4045 } | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4046 os::native_path(strcpy(pathbuf, path)); |
| 0 | 4047 int ret = ::stat(pathbuf, sbuf); |
| 4048 if (sbuf != NULL && UseUTCFileTimestamp) { | |
| 4049 // Fix for 6539723. st_mtime returned from stat() is dependent on | |
| 4050 // the system timezone and so can return different values for the | |
| 4051 // same file if/when daylight savings time changes. This adjustment | |
| 4052 // makes sure the same timestamp is returned regardless of the TZ. | |
| 4053 // | |
| 4054 // See: | |
| 4055 // http://msdn.microsoft.com/library/ | |
| 4056 // default.asp?url=/library/en-us/sysinfo/base/ | |
| 4057 // time_zone_information_str.asp | |
| 4058 // and | |
| 4059 // http://msdn.microsoft.com/library/default.asp?url= | |
| 4060 // /library/en-us/sysinfo/base/settimezoneinformation.asp | |
| 4061 // | |
| 4062 // NOTE: there is a insidious bug here: If the timezone is changed | |
| 4063 // after the call to stat() but before 'GetTimeZoneInformation()', then | |
| 4064 // the adjustment we do here will be wrong and we'll return the wrong | |
| 4065 // value (which will likely end up creating an invalid class data | |
| 4066 // archive). Absent a better API for this, or some time zone locking | |
| 4067 // mechanism, we'll have to live with this risk. | |
| 4068 TIME_ZONE_INFORMATION tz; | |
| 4069 DWORD tzid = GetTimeZoneInformation(&tz); | |
| 4070 int daylightBias = | |
| 4071 (tzid == TIME_ZONE_ID_DAYLIGHT) ? tz.DaylightBias : tz.StandardBias; | |
| 4072 sbuf->st_mtime += (tz.Bias + daylightBias) * 60; | |
| 4073 } | |
| 4074 return ret; | |
| 4075 } | |
| 4076 | |
| 4077 | |
| 4078 #define FT2INT64(ft) \ | |
| 4079 ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime)) | |
| 4080 | |
| 4081 | |
| 4082 // current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool) | |
| 4083 // are used by JVM M&M and JVMTI to get user+sys or user CPU time | |
| 4084 // of a thread. | |
| 4085 // | |
| 4086 // current_thread_cpu_time() and thread_cpu_time(Thread*) returns | |
| 4087 // the fast estimate available on the platform. | |
| 4088 | |
| 4089 // current_thread_cpu_time() is not optimized for Windows yet | |
| 4090 jlong os::current_thread_cpu_time() { | |
| 4091 // return user + sys since the cost is the same | |
| 4092 return os::thread_cpu_time(Thread::current(), true /* user+sys */); | |
| 4093 } | |
| 4094 | |
| 4095 jlong os::thread_cpu_time(Thread* thread) { | |
| 4096 // consistent with what current_thread_cpu_time() returns. | |
| 4097 return os::thread_cpu_time(thread, true /* user+sys */); | |
| 4098 } | |
| 4099 | |
| 4100 jlong os::current_thread_cpu_time(bool user_sys_cpu_time) { | |
| 4101 return os::thread_cpu_time(Thread::current(), user_sys_cpu_time); | |
| 4102 } | |
| 4103 | |
| 4104 jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) { | |
| 4105 // This code is copy from clasic VM -> hpi::sysThreadCPUTime | |
| 4106 // If this function changes, os::is_thread_cpu_time_supported() should too | |
| 4107 if (os::win32::is_nt()) { | |
| 4108 FILETIME CreationTime; | |
| 4109 FILETIME ExitTime; | |
| 4110 FILETIME KernelTime; | |
| 4111 FILETIME UserTime; | |
| 4112 | |
| 4113 if ( GetThreadTimes(thread->osthread()->thread_handle(), | |
| 4114 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 4115 return -1; | |
| 4116 else | |
| 4117 if (user_sys_cpu_time) { | |
| 4118 return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100; | |
| 4119 } else { | |
| 4120 return FT2INT64(UserTime) * 100; | |
| 4121 } | |
| 4122 } else { | |
| 4123 return (jlong) timeGetTime() * 1000000; | |
| 4124 } | |
| 4125 } | |
| 4126 | |
| 4127 void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 4128 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 4129 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 4130 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 4131 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 4132 } | |
| 4133 | |
| 4134 void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) { | |
| 4135 info_ptr->max_value = ALL_64_BITS; // the max value -- all 64 bits | |
| 4136 info_ptr->may_skip_backward = false; // GetThreadTimes returns absolute time | |
| 4137 info_ptr->may_skip_forward = false; // GetThreadTimes returns absolute time | |
| 4138 info_ptr->kind = JVMTI_TIMER_TOTAL_CPU; // user+system time is returned | |
| 4139 } | |
| 4140 | |
| 4141 bool os::is_thread_cpu_time_supported() { | |
| 4142 // see os::thread_cpu_time | |
| 4143 if (os::win32::is_nt()) { | |
| 4144 FILETIME CreationTime; | |
| 4145 FILETIME ExitTime; | |
| 4146 FILETIME KernelTime; | |
| 4147 FILETIME UserTime; | |
| 4148 | |
| 4149 if ( GetThreadTimes(GetCurrentThread(), | |
| 4150 &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) | |
| 4151 return false; | |
| 4152 else | |
| 4153 return true; | |
| 4154 } else { | |
| 4155 return false; | |
| 4156 } | |
| 4157 } | |
| 4158 | |
| 4159 // Windows does't provide a loadavg primitive so this is stubbed out for now. | |
| 4160 // It does have primitives (PDH API) to get CPU usage and run queue length. | |
| 4161 // "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length" | |
| 4162 // If we wanted to implement loadavg on Windows, we have a few options: | |
| 4163 // | |
| 4164 // a) Query CPU usage and run queue length and "fake" an answer by | |
| 4165 // returning the CPU usage if it's under 100%, and the run queue | |
| 4166 // length otherwise. It turns out that querying is pretty slow | |
| 4167 // on Windows, on the order of 200 microseconds on a fast machine. | |
| 4168 // Note that on the Windows the CPU usage value is the % usage | |
| 4169 // since the last time the API was called (and the first call | |
| 4170 // returns 100%), so we'd have to deal with that as well. | |
| 4171 // | |
| 4172 // b) Sample the "fake" answer using a sampling thread and store | |
| 4173 // the answer in a global variable. The call to loadavg would | |
| 4174 // just return the value of the global, avoiding the slow query. | |
| 4175 // | |
| 4176 // c) Sample a better answer using exponential decay to smooth the | |
| 4177 // value. This is basically the algorithm used by UNIX kernels. | |
| 4178 // | |
| 4179 // Note that sampling thread starvation could affect both (b) and (c). | |
| 4180 int os::loadavg(double loadavg[], int nelem) { | |
| 4181 return -1; | |
| 4182 } | |
| 4183 | |
| 4184 | |
| 4185 // DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield() | |
| 4186 bool os::dont_yield() { | |
| 4187 return DontYieldALot; | |
| 4188 } | |
| 4189 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4190 // 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
|
4191 // 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
|
4192 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4193 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
|
4194 char pathbuf[MAX_PATH]; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4195 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4196 if (strlen(path) > MAX_PATH - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4197 errno = ENAMETOOLONG; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4198 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4199 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4200 os::native_path(strcpy(pathbuf, path)); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4201 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
|
4202 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4203 |
|
10195
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4204 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
|
4205 return ::_fdopen(fd, mode); |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4206 } |
|
e12c9b3740db
8012260: ciReplay: Include PID into the name of replay data file
vlivanov
parents:
9152
diff
changeset
|
4207 |
| 0 | 4208 // Is a (classpath) directory empty? |
| 4209 bool os::dir_is_empty(const char* path) { | |
| 4210 WIN32_FIND_DATA fd; | |
| 4211 HANDLE f = FindFirstFile(path, &fd); | |
| 4212 if (f == INVALID_HANDLE_VALUE) { | |
| 4213 return true; | |
| 4214 } | |
| 4215 FindClose(f); | |
| 4216 return false; | |
| 4217 } | |
| 4218 | |
| 4219 // create binary file, rewriting existing file if required | |
| 4220 int os::create_binary_file(const char* path, bool rewrite_existing) { | |
| 4221 int oflags = _O_CREAT | _O_WRONLY | _O_BINARY; | |
| 4222 if (!rewrite_existing) { | |
| 4223 oflags |= _O_EXCL; | |
| 4224 } | |
| 4225 return ::open(path, oflags, _S_IREAD | _S_IWRITE); | |
| 4226 } | |
| 4227 | |
| 4228 // return current position of file pointer | |
| 4229 jlong os::current_file_offset(int fd) { | |
| 4230 return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR); | |
| 4231 } | |
| 4232 | |
| 4233 // move file pointer to the specified offset | |
| 4234 jlong os::seek_to_file_offset(int fd, jlong offset) { | |
| 4235 return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET); | |
| 4236 } | |
| 4237 | |
| 4238 | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4239 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
|
4240 return (jlong) ::_lseeki64(fd, offset, whence); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4241 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4242 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4243 // 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
|
4244 // from src/windows/hpi/src/path_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4245 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4246 /* 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
|
4247 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
|
4248 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
|
4249 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
|
4250 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
|
4251 treat double-byte lead characters correctly. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4252 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4253 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
|
4254 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
|
4255 succeeds. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4256 char * os::native_path(char *path) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4257 char *src = path, *dst = path, *end = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4258 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
|
4259 point to the colon following the drive |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4260 letter */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4261 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4262 /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4263 assert(((!::IsDBCSLeadByte('/')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4264 && (!::IsDBCSLeadByte('\\')) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4265 && (!::IsDBCSLeadByte(':'))), |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4266 "Illegal lead byte"); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4267 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4268 /* Check for leading separators */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4269 #define isfilesep(c) ((c) == '/' || (c) == '\\') |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4270 while (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4271 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4272 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4273 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4274 if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4275 /* 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
|
4276 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
|
4277 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
|
4278 "/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
|
4279 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4280 colon = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4281 *dst++ = ':'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4282 src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4283 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4284 src = path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4285 if (isfilesep(src[0]) && isfilesep(src[1])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4286 /* 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
|
4287 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
|
4288 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
|
4289 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
|
4290 src = dst = path + 1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4291 path[0] = '\\'; /* Force first separator to '\\' */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4292 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4293 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4294 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4295 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4296 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4297 /* 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
|
4298 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
|
4299 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
|
4300 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
|
4301 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4302 while (*src != '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4303 if (isfilesep(*src)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4304 *dst++ = '\\'; src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4305 while (isfilesep(*src)) src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4306 if (*src == '\0') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4307 /* Check for trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4308 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4309 if (colon == dst - 2) break; /* "z:\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4310 if (dst == path + 1) break; /* "\\" */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4311 if (dst == path + 2 && isfilesep(path[0])) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4312 /* "\\\\" is not collapsed to "\\" because "\\\\" marks the |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4313 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
|
4314 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
|
4315 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
|
4316 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
|
4317 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
|
4318 directory of the current drive. */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4319 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4320 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4321 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
|
4322 remove trailing separator */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4323 break; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4324 } |
|
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 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4327 if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4328 *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4329 if (*src) *dst++ = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4330 end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4331 } else { /* Copy a single-byte character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4332 char c = *src++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4333 *dst++ = c; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4334 /* Space is not a legal ending character */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4335 if (c != ' ') end = dst; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4336 } |
|
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 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4339 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4340 *end = '\0'; |
|
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 /* 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
|
4343 if (colon == dst - 1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4344 path[2] = '.'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4345 path[3] = '\0'; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4346 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4347 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4348 return path; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4349 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4350 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4351 // 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
|
4352 // 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
|
4353 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4354 int os::ftruncate(int fd, jlong length) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4355 HANDLE h = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4356 long high = (long)(length >> 32); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4357 DWORD ret; |
|
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 if (h == (HANDLE)(-1)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4360 return -1; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4361 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4362 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4363 ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4364 if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4365 return -1; |
|
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 if (::SetEndOfFile(h) == FALSE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4369 return -1; |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4372 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4373 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4374 |
|
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 // 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
|
4377 // 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
|
4378 // 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
|
4379 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4380 int os::fsync(int fd) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4381 HANDLE handle = (HANDLE)::_get_osfhandle(fd); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4382 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4383 if ( (!::FlushFileBuffers(handle)) && |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4384 (GetLastError() != ERROR_ACCESS_DENIED) ) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4385 /* from winerror.h */ |
|
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 return 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4389 } |
|
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 static int nonSeekAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4392 static int stdinAvailable(int, long *); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4393 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4394 #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
|
4395 #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
|
4396 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4397 // 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
|
4398 // 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
|
4399 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4400 int os::available(int fd, jlong *bytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4401 jlong cur, end; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4402 struct _stati64 stbuf64; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4403 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4404 if (::_fstati64(fd, &stbuf64) >= 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4405 int mode = stbuf64.st_mode; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4406 if (S_ISCHR(mode) || S_ISFIFO(mode)) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4407 int ret; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4408 long lpbytes; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4409 if (fd == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4410 ret = stdinAvailable(fd, &lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4411 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4412 ret = nonSeekAvailable(fd, &lpbytes); |
|
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 (*bytes) = (jlong)(lpbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4415 return ret; |
|
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 if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4418 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4419 } 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
|
4420 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4421 } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4422 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4423 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4424 *bytes = end - cur; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4425 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4426 } else { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4427 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4428 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4429 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4430 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4431 // 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
|
4432 // 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
|
4433 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4434 static int nonSeekAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4435 /* 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
|
4436 * (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
|
4437 * connected to an exec'd process). |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4438 * Standard Input is a special case. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4439 * |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4440 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4441 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4442 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4443 if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) { |
|
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 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
|
4448 /* 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
|
4449 * 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
|
4450 * 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
|
4451 * The only alternative is to raise an Exception, |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4452 * which isn't really warranted. |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4453 */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4454 if (::GetLastError() != ERROR_BROKEN_PIPE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4455 return FALSE; |
|
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 *pbytes = 0; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4458 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4459 return TRUE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4460 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4461 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4462 #define MAX_INPUT_EVENTS 2000 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4463 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4464 // This code is a copy of JDK's stdinAvailable |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4465 // from src/windows/hpi/src/sys_api_md.c |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4466 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4467 static int stdinAvailable(int fd, long *pbytes) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4468 HANDLE han; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4469 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
|
4470 DWORD numEvents = 0; /* Number of events in buffer */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4471 DWORD i = 0; /* Loop index */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4472 DWORD curLength = 0; /* Position marker */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4473 DWORD actualLength = 0; /* Number of bytes readable */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4474 BOOL error = FALSE; /* Error holder */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4475 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
|
4476 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4477 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
|
4478 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4479 } |
|
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 /* 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
|
4482 error = ::GetNumberOfConsoleInputEvents(han, &numEvents); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4483 if (error == 0) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4484 return nonSeekAvailable(fd, pbytes); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4485 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4486 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4487 /* 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
|
4488 if (numEvents > MAX_INPUT_EVENTS) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4489 numEvents = MAX_INPUT_EVENTS; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4490 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4491 |
| 6197 | 4492 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
|
4493 if (lpBuffer == NULL) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4494 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4495 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4496 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4497 error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4498 if (error == 0) { |
| 6197 | 4499 os::free(lpBuffer, mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4500 return FALSE; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4501 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4502 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4503 /* Examine input records for the number of bytes available */ |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4504 for(i=0; i<numEvents; i++) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4505 if (lpBuffer[i].EventType == KEY_EVENT) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4506 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4507 KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *) |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4508 &(lpBuffer[i].Event); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4509 if (keyRecord->bKeyDown == TRUE) { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4510 CHAR *keyPressed = (CHAR *) &(keyRecord->uChar); |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4511 curLength++; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4512 if (*keyPressed == '\r') { |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4513 actualLength = curLength; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4514 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4515 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4516 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4517 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4518 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4519 if(lpBuffer != NULL) { |
| 6197 | 4520 os::free(lpBuffer, mtInternal); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4521 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4522 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
4523 *pbytes = (long) actualLength; |
|
828eafbd85cc
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diff
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|
4524 return TRUE; |
|
828eafbd85cc
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diff
changeset
|
4525 } |
|
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1972
diff
changeset
|
4526 |
| 0 | 4527 // Map a block of memory. |
| 6197 | 4528 char* os::pd_map_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4529 char *addr, size_t bytes, bool read_only, |
| 4530 bool allow_exec) { | |
| 4531 HANDLE hFile; | |
| 4532 char* base; | |
| 4533 | |
| 4534 hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL, | |
| 4535 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
| 4536 if (hFile == NULL) { | |
| 4537 if (PrintMiscellaneous && Verbose) { | |
| 4538 DWORD err = GetLastError(); | |
|
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diff
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|
4539 tty->print_cr("CreateFile() failed: GetLastError->%ld.", err); |
| 0 | 4540 } |
| 4541 return NULL; | |
| 4542 } | |
| 4543 | |
| 4544 if (allow_exec) { | |
| 4545 // CreateFileMapping/MapViewOfFileEx can't map executable memory | |
| 4546 // unless it comes from a PE image (which the shared archive is not.) | |
| 4547 // Even VirtualProtect refuses to give execute access to mapped memory | |
| 4548 // that was not previously executable. | |
| 4549 // | |
| 4550 // Instead, stick the executable region in anonymous memory. Yuck. | |
| 4551 // Penalty is that ~4 pages will not be shareable - in the future | |
| 4552 // we might consider DLLizing the shared archive with a proper PE | |
| 4553 // header so that mapping executable + sharing is possible. | |
| 4554 | |
| 4555 base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE, | |
| 4556 PAGE_READWRITE); | |
| 4557 if (base == NULL) { | |
| 4558 if (PrintMiscellaneous && Verbose) { | |
| 4559 DWORD err = GetLastError(); | |
| 4560 tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err); | |
| 4561 } | |
| 4562 CloseHandle(hFile); | |
| 4563 return NULL; | |
| 4564 } | |
| 4565 | |
| 4566 DWORD bytes_read; | |
| 4567 OVERLAPPED overlapped; | |
| 4568 overlapped.Offset = (DWORD)file_offset; | |
| 4569 overlapped.OffsetHigh = 0; | |
| 4570 overlapped.hEvent = NULL; | |
| 4571 // ReadFile guarantees that if the return value is true, the requested | |
| 4572 // number of bytes were read before returning. | |
| 4573 bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0; | |
| 4574 if (!res) { | |
| 4575 if (PrintMiscellaneous && Verbose) { | |
| 4576 DWORD err = GetLastError(); | |
| 4577 tty->print_cr("ReadFile() failed: GetLastError->%ld.", err); | |
| 4578 } | |
| 4579 release_memory(base, bytes); | |
| 4580 CloseHandle(hFile); | |
| 4581 return NULL; | |
| 4582 } | |
| 4583 } else { | |
| 4584 HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0, | |
| 4585 NULL /*file_name*/); | |
| 4586 if (hMap == NULL) { | |
| 4587 if (PrintMiscellaneous && Verbose) { | |
| 4588 DWORD err = GetLastError(); | |
|
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diff
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|
4589 tty->print_cr("CreateFileMapping() failed: GetLastError->%ld.", err); |
| 0 | 4590 } |
| 4591 CloseHandle(hFile); | |
| 4592 return NULL; | |
| 4593 } | |
| 4594 | |
| 4595 DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY; | |
| 4596 base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset, | |
| 4597 (DWORD)bytes, addr); | |
| 4598 if (base == NULL) { | |
| 4599 if (PrintMiscellaneous && Verbose) { | |
| 4600 DWORD err = GetLastError(); | |
| 4601 tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err); | |
| 4602 } | |
| 4603 CloseHandle(hMap); | |
| 4604 CloseHandle(hFile); | |
| 4605 return NULL; | |
| 4606 } | |
| 4607 | |
| 4608 if (CloseHandle(hMap) == 0) { | |
| 4609 if (PrintMiscellaneous && Verbose) { | |
| 4610 DWORD err = GetLastError(); | |
| 4611 tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err); | |
| 4612 } | |
| 4613 CloseHandle(hFile); | |
| 4614 return base; | |
| 4615 } | |
| 4616 } | |
| 4617 | |
| 4618 if (allow_exec) { | |
| 4619 DWORD old_protect; | |
| 4620 DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE; | |
| 4621 bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0; | |
| 4622 | |
| 4623 if (!res) { | |
| 4624 if (PrintMiscellaneous && Verbose) { | |
| 4625 DWORD err = GetLastError(); | |
| 4626 tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err); | |
| 4627 } | |
| 4628 // Don't consider this a hard error, on IA32 even if the | |
| 4629 // VirtualProtect fails, we should still be able to execute | |
| 4630 CloseHandle(hFile); | |
| 4631 return base; | |
| 4632 } | |
| 4633 } | |
| 4634 | |
| 4635 if (CloseHandle(hFile) == 0) { | |
| 4636 if (PrintMiscellaneous && Verbose) { | |
| 4637 DWORD err = GetLastError(); | |
| 4638 tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err); | |
| 4639 } | |
| 4640 return base; | |
| 4641 } | |
| 4642 | |
| 4643 return base; | |
| 4644 } | |
| 4645 | |
| 4646 | |
| 4647 // Remap a block of memory. | |
| 6197 | 4648 char* os::pd_remap_memory(int fd, const char* file_name, size_t file_offset, |
| 0 | 4649 char *addr, size_t bytes, bool read_only, |
| 4650 bool allow_exec) { | |
| 4651 // This OS does not allow existing memory maps to be remapped so we | |
| 4652 // have to unmap the memory before we remap it. | |
| 4653 if (!os::unmap_memory(addr, bytes)) { | |
| 4654 return NULL; | |
| 4655 } | |
| 4656 | |
| 4657 // There is a very small theoretical window between the unmap_memory() | |
| 4658 // call above and the map_memory() call below where a thread in native | |
| 4659 // code may be able to access an address that is no longer mapped. | |
| 4660 | |
| 6197 | 4661 return os::map_memory(fd, file_name, file_offset, addr, bytes, |
| 4662 read_only, allow_exec); | |
| 0 | 4663 } |
| 4664 | |
| 4665 | |
| 4666 // Unmap a block of memory. | |
| 4667 // Returns true=success, otherwise false. | |
| 4668 | |
| 6197 | 4669 bool os::pd_unmap_memory(char* addr, size_t bytes) { |
| 0 | 4670 BOOL result = UnmapViewOfFile(addr); |
| 4671 if (result == 0) { | |
| 4672 if (PrintMiscellaneous && Verbose) { | |
| 4673 DWORD err = GetLastError(); | |
| 4674 tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err); | |
| 4675 } | |
| 4676 return false; | |
| 4677 } | |
| 4678 return true; | |
| 4679 } | |
| 4680 | |
| 4681 void os::pause() { | |
| 4682 char filename[MAX_PATH]; | |
| 4683 if (PauseAtStartupFile && PauseAtStartupFile[0]) { | |
| 4684 jio_snprintf(filename, MAX_PATH, PauseAtStartupFile); | |
| 4685 } else { | |
| 4686 jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id()); | |
| 4687 } | |
| 4688 | |
| 4689 int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); | |
| 4690 if (fd != -1) { | |
| 4691 struct stat buf; | |
|
1980
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diff
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|
4692 ::close(fd); |
| 0 | 4693 while (::stat(filename, &buf) == 0) { |
| 4694 Sleep(100); | |
| 4695 } | |
| 4696 } else { | |
| 4697 jio_fprintf(stderr, | |
| 4698 "Could not open pause file '%s', continuing immediately.\n", filename); | |
| 4699 } | |
| 4700 } | |
| 4701 | |
| 11151 | 4702 os::WatcherThreadCrashProtection::WatcherThreadCrashProtection() { |
| 4703 assert(Thread::current()->is_Watcher_thread(), "Must be WatcherThread"); | |
| 4704 } | |
| 4705 | |
| 4706 /* | |
| 4707 * See the caveats for this class in os_windows.hpp | |
| 4708 * Protects the callback call so that raised OS EXCEPTIONS causes a jump back | |
| 4709 * into this method and returns false. If no OS EXCEPTION was raised, returns | |
| 4710 * true. | |
| 4711 * The callback is supposed to provide the method that should be protected. | |
| 4712 */ | |
| 4713 bool os::WatcherThreadCrashProtection::call(os::CrashProtectionCallback& cb) { | |
| 4714 assert(Thread::current()->is_Watcher_thread(), "Only for WatcherThread"); | |
| 4715 assert(!WatcherThread::watcher_thread()->has_crash_protection(), | |
| 4716 "crash_protection already set?"); | |
| 4717 | |
| 4718 bool success = true; | |
| 4719 __try { | |
| 4720 WatcherThread::watcher_thread()->set_crash_protection(this); | |
| 4721 cb.call(); | |
| 4722 } __except(EXCEPTION_EXECUTE_HANDLER) { | |
| 4723 // only for protection, nothing to do | |
| 4724 success = false; | |
| 4725 } | |
| 4726 WatcherThread::watcher_thread()->set_crash_protection(NULL); | |
| 4727 return success; | |
| 4728 } | |
| 4729 | |
| 0 | 4730 // An Event wraps a win32 "CreateEvent" kernel handle. |
| 4731 // | |
| 4732 // We have a number of choices regarding "CreateEvent" win32 handle leakage: | |
| 4733 // | |
| 4734 // 1: When a thread dies return the Event to the EventFreeList, clear the ParkHandle | |
| 4735 // field, and call CloseHandle() on the win32 event handle. Unpark() would | |
| 4736 // need to be modified to tolerate finding a NULL (invalid) win32 event handle. | |
| 4737 // In addition, an unpark() operation might fetch the handle field, but the | |
| 4738 // event could recycle between the fetch and the SetEvent() operation. | |
| 4739 // SetEvent() would either fail because the handle was invalid, or inadvertently work, | |
| 4740 // as the win32 handle value had been recycled. In an ideal world calling SetEvent() | |
| 4741 // on an stale but recycled handle would be harmless, but in practice this might | |
| 4742 // confuse other non-Sun code, so it's not a viable approach. | |
| 4743 // | |
| 4744 // 2: Once a win32 event handle is associated with an Event, it remains associated | |
| 4745 // with the Event. The event handle is never closed. This could be construed | |
| 4746 // as handle leakage, but only up to the maximum # of threads that have been extant | |
| 4747 // at any one time. This shouldn't be an issue, as windows platforms typically | |
| 4748 // permit a process to have hundreds of thousands of open handles. | |
| 4749 // | |
| 4750 // 3: Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList | |
| 4751 // and release unused handles. | |
| 4752 // | |
| 4753 // 4: Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle. | |
| 4754 // It's not clear, however, that we wouldn't be trading one type of leak for another. | |
| 4755 // | |
| 4756 // 5. Use an RCU-like mechanism (Read-Copy Update). | |
| 4757 // Or perhaps something similar to Maged Michael's "Hazard pointers". | |
| 4758 // | |
| 4759 // We use (2). | |
| 4760 // | |
| 4761 // TODO-FIXME: | |
| 4762 // 1. Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation. | |
| 4763 // 2. Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks | |
| 4764 // to recover from (or at least detect) the dreaded Windows 841176 bug. | |
| 4765 // 3. Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent | |
| 4766 // into a single win32 CreateEvent() handle. | |
| 4767 // | |
| 4768 // _Event transitions in park() | |
| 4769 // -1 => -1 : illegal | |
| 4770 // 1 => 0 : pass - return immediately | |
| 4771 // 0 => -1 : block | |
| 4772 // | |
| 4773 // _Event serves as a restricted-range semaphore : | |
| 4774 // -1 : thread is blocked | |
| 4775 // 0 : neutral - thread is running or ready | |
| 4776 // 1 : signaled - thread is running or ready | |
| 4777 // | |
| 4778 // Another possible encoding of _Event would be | |
| 4779 // with explicit "PARKED" and "SIGNALED" bits. | |
| 4780 | |
| 4781 int os::PlatformEvent::park (jlong Millis) { | |
| 4782 guarantee (_ParkHandle != NULL , "Invariant") ; | |
| 4783 guarantee (Millis > 0 , "Invariant") ; | |
| 4784 int v ; | |
| 4785 | |
| 4786 // CONSIDER: defer assigning a CreateEvent() handle to the Event until | |
| 4787 // the initial park() operation. | |
| 4788 | |
| 4789 for (;;) { | |
| 4790 v = _Event ; | |
| 4791 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4792 } | |
| 4793 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4794 if (v != 0) return OS_OK ; | |
| 4795 | |
| 4796 // Do this the hard way by blocking ... | |
| 4797 // TODO: consider a brief spin here, gated on the success of recent | |
| 4798 // spin attempts by this thread. | |
| 4799 // | |
| 4800 // We decompose long timeouts into series of shorter timed waits. | |
| 4801 // Evidently large timo values passed in WaitForSingleObject() are problematic on some | |
| 4802 // versions of Windows. See EventWait() for details. This may be superstition. Or not. | |
| 4803 // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time | |
| 4804 // with os::javaTimeNanos(). Furthermore, we assume that spurious returns from | |
| 4805 // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend | |
| 4806 // to happen early in the wait interval. Specifically, after a spurious wakeup (rv == | |
| 4807 // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate | |
| 4808 // for the already waited time. This policy does not admit any new outcomes. | |
| 4809 // In the future, however, we might want to track the accumulated wait time and | |
| 4810 // adjust Millis accordingly if we encounter a spurious wakeup. | |
| 4811 | |
| 4812 const int MAXTIMEOUT = 0x10000000 ; | |
| 4813 DWORD rv = WAIT_TIMEOUT ; | |
| 4814 while (_Event < 0 && Millis > 0) { | |
| 4815 DWORD prd = Millis ; // set prd = MAX (Millis, MAXTIMEOUT) | |
| 4816 if (Millis > MAXTIMEOUT) { | |
| 4817 prd = MAXTIMEOUT ; | |
| 4818 } | |
| 4819 rv = ::WaitForSingleObject (_ParkHandle, prd) ; | |
| 4820 assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ; | |
| 4821 if (rv == WAIT_TIMEOUT) { | |
| 4822 Millis -= prd ; | |
| 4823 } | |
| 4824 } | |
| 4825 v = _Event ; | |
| 4826 _Event = 0 ; | |
|
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|
4827 // see comment at end of os::PlatformEvent::park() below: |
| 0 | 4828 OrderAccess::fence() ; |
| 4829 // If we encounter a nearly simultanous timeout expiry and unpark() | |
| 4830 // we return OS_OK indicating we awoke via unpark(). | |
| 4831 // Implementor's license -- returning OS_TIMEOUT would be equally valid, however. | |
| 4832 return (v >= 0) ? OS_OK : OS_TIMEOUT ; | |
| 4833 } | |
| 4834 | |
| 4835 void os::PlatformEvent::park () { | |
| 4836 guarantee (_ParkHandle != NULL, "Invariant") ; | |
| 4837 // Invariant: Only the thread associated with the Event/PlatformEvent | |
| 4838 // may call park(). | |
| 4839 int v ; | |
| 4840 for (;;) { | |
| 4841 v = _Event ; | |
| 4842 if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ; | |
| 4843 } | |
| 4844 guarantee ((v == 0) || (v == 1), "invariant") ; | |
| 4845 if (v != 0) return ; | |
| 4846 | |
| 4847 // Do this the hard way by blocking ... | |
| 4848 // TODO: consider a brief spin here, gated on the success of recent | |
| 4849 // spin attempts by this thread. | |
| 4850 while (_Event < 0) { | |
| 4851 DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ; | |
| 4852 assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ; | |
| 4853 } | |
| 4854 | |
| 4855 // Usually we'll find _Event == 0 at this point, but as | |
| 4856 // an optional optimization we clear it, just in case can | |
| 4857 // multiple unpark() operations drove _Event up to 1. | |
| 4858 _Event = 0 ; | |
| 4859 OrderAccess::fence() ; | |
| 4860 guarantee (_Event >= 0, "invariant") ; | |
| 4861 } | |
| 4862 | |
| 4863 void os::PlatformEvent::unpark() { | |
| 4864 guarantee (_ParkHandle != NULL, "Invariant") ; | |
|
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|
4865 |
|
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|
4866 // Transitions for _Event: |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
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diff
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|
4867 // 0 :=> 1 |
|
22ba8c8ce6a6
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|
4868 // 1 :=> 1 |
|
22ba8c8ce6a6
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diff
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|
4869 // -1 :=> either 0 or 1; must signal target thread |
|
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diff
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|
4870 // That is, we can safely transition _Event from -1 to either |
|
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diff
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|
4871 // 0 or 1. Forcing 1 is slightly more efficient for back-to-back |
|
22ba8c8ce6a6
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|
4872 // unpark() calls. |
|
22ba8c8ce6a6
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diff
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|
4873 // See also: "Semaphores in Plan 9" by Mullender & Cox |
|
22ba8c8ce6a6
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|
4874 // |
|
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|
4875 // Note: Forcing a transition from "-1" to "1" on an unpark() means |
|
22ba8c8ce6a6
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diff
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|
4876 // that it will take two back-to-back park() calls for the owning |
|
22ba8c8ce6a6
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diff
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|
4877 // thread to block. This has the benefit of forcing a spurious return |
|
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|
4878 // from the first park() call after an unpark() call which will help |
|
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|
4879 // shake out uses of park() and unpark() without condition variables. |
|
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|
4880 |
|
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|
4881 if (Atomic::xchg(1, &_Event) >= 0) return; |
|
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|
4882 |
|
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|
4883 ::SetEvent(_ParkHandle); |
| 0 | 4884 } |
| 4885 | |
| 4886 | |
| 4887 // JSR166 | |
| 4888 // ------------------------------------------------------- | |
| 4889 | |
| 4890 /* | |
| 4891 * The Windows implementation of Park is very straightforward: Basic | |
| 4892 * operations on Win32 Events turn out to have the right semantics to | |
| 4893 * use them directly. We opportunistically resuse the event inherited | |
| 4894 * from Monitor. | |
| 4895 */ | |
| 4896 | |
| 4897 | |
| 4898 void Parker::park(bool isAbsolute, jlong time) { | |
| 4899 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4900 // First, demultiplex/decode time arguments | |
| 4901 if (time < 0) { // don't wait | |
| 4902 return; | |
| 4903 } | |
|
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1c352af0135d
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diff
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|
4904 else if (time == 0 && !isAbsolute) { |
| 0 | 4905 time = INFINITE; |
| 4906 } | |
| 4907 else if (isAbsolute) { | |
| 4908 time -= os::javaTimeMillis(); // convert to relative time | |
| 4909 if (time <= 0) // already elapsed | |
| 4910 return; | |
| 4911 } | |
| 4912 else { // relative | |
| 4913 time /= 1000000; // Must coarsen from nanos to millis | |
| 4914 if (time == 0) // Wait for the minimal time unit if zero | |
| 4915 time = 1; | |
| 4916 } | |
| 4917 | |
| 4918 JavaThread* thread = (JavaThread*)(Thread::current()); | |
| 4919 assert(thread->is_Java_thread(), "Must be JavaThread"); | |
| 4920 JavaThread *jt = (JavaThread *)thread; | |
| 4921 | |
| 4922 // Don't wait if interrupted or already triggered | |
| 4923 if (Thread::is_interrupted(thread, false) || | |
| 4924 WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) { | |
| 4925 ResetEvent(_ParkEvent); | |
| 4926 return; | |
| 4927 } | |
| 4928 else { | |
| 4929 ThreadBlockInVM tbivm(jt); | |
| 4930 OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */); | |
| 4931 jt->set_suspend_equivalent(); | |
| 4932 | |
| 4933 WaitForSingleObject(_ParkEvent, time); | |
| 4934 ResetEvent(_ParkEvent); | |
| 4935 | |
| 4936 // If externally suspended while waiting, re-suspend | |
| 4937 if (jt->handle_special_suspend_equivalent_condition()) { | |
| 4938 jt->java_suspend_self(); | |
| 4939 } | |
| 4940 } | |
| 4941 } | |
| 4942 | |
| 4943 void Parker::unpark() { | |
| 4944 guarantee (_ParkEvent != NULL, "invariant") ; | |
| 4945 SetEvent(_ParkEvent); | |
| 4946 } | |
| 4947 | |
| 4948 // Run the specified command in a separate process. Return its exit value, | |
| 4949 // or -1 on failure (e.g. can't create a new process). | |
| 4950 int os::fork_and_exec(char* cmd) { | |
| 4951 STARTUPINFO si; | |
| 4952 PROCESS_INFORMATION pi; | |
| 4953 | |
| 4954 memset(&si, 0, sizeof(si)); | |
| 4955 si.cb = sizeof(si); | |
| 4956 memset(&pi, 0, sizeof(pi)); | |
| 4957 BOOL rslt = CreateProcess(NULL, // executable name - use command line | |
| 4958 cmd, // command line | |
| 4959 NULL, // process security attribute | |
| 4960 NULL, // thread security attribute | |
| 4961 TRUE, // inherits system handles | |
| 4962 0, // no creation flags | |
| 4963 NULL, // use parent's environment block | |
| 4964 NULL, // use parent's starting directory | |
| 4965 &si, // (in) startup information | |
| 4966 &pi); // (out) process information | |
| 4967 | |
| 4968 if (rslt) { | |
| 4969 // Wait until child process exits. | |
| 4970 WaitForSingleObject(pi.hProcess, INFINITE); | |
| 4971 | |
| 4972 DWORD exit_code; | |
| 4973 GetExitCodeProcess(pi.hProcess, &exit_code); | |
| 4974 | |
| 4975 // Close process and thread handles. | |
| 4976 CloseHandle(pi.hProcess); | |
| 4977 CloseHandle(pi.hThread); | |
| 4978 | |
| 4979 return (int)exit_code; | |
| 4980 } else { | |
| 4981 return -1; | |
| 4982 } | |
| 4983 } | |
| 4984 | |
| 4985 //-------------------------------------------------------------------------------------------------- | |
| 4986 // Non-product code | |
| 4987 | |
| 4988 static int mallocDebugIntervalCounter = 0; | |
| 4989 static int mallocDebugCounter = 0; | |
| 4990 bool os::check_heap(bool force) { | |
| 4991 if (++mallocDebugCounter < MallocVerifyStart && !force) return true; | |
| 4992 if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) { | |
| 4993 // Note: HeapValidate executes two hardware breakpoints when it finds something | |
| 4994 // wrong; at these points, eax contains the address of the offending block (I think). | |
| 4995 // To get to the exlicit error message(s) below, just continue twice. | |
| 4996 HANDLE heap = GetProcessHeap(); | |
| 4997 { HeapLock(heap); | |
| 4998 PROCESS_HEAP_ENTRY phe; | |
| 4999 phe.lpData = NULL; | |
| 5000 while (HeapWalk(heap, &phe) != 0) { | |
| 5001 if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) && | |
| 5002 !HeapValidate(heap, 0, phe.lpData)) { | |
| 5003 tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter); | |
| 5004 tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData); | |
| 5005 fatal("corrupted C heap"); | |
| 5006 } | |
| 5007 } | |
|
4750
b16494a69d3d
7126185: Clean up lasterror handling, add os::get_last_error()
phh
parents:
4720
diff
changeset
|
5008 DWORD err = GetLastError(); |
| 0 | 5009 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
|
5010 fatal(err_msg("heap walk aborted with error %d", err)); |
| 0 | 5011 } |
| 5012 HeapUnlock(heap); | |
| 5013 } | |
| 5014 mallocDebugIntervalCounter = 0; | |
| 5015 } | |
| 5016 return true; | |
| 5017 } | |
| 5018 | |
| 5019 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5020 bool os::find(address addr, outputStream* st) { |
| 0 | 5021 // Nothing yet |
| 5022 return false; | |
| 5023 } | |
| 5024 | |
| 5025 LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) { | |
| 5026 DWORD exception_code = e->ExceptionRecord->ExceptionCode; | |
| 5027 | |
| 5028 if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) { | |
| 5029 JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow(); | |
| 5030 PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord; | |
| 5031 address addr = (address) exceptionRecord->ExceptionInformation[1]; | |
| 5032 | |
| 5033 if (os::is_memory_serialize_page(thread, addr)) | |
| 5034 return EXCEPTION_CONTINUE_EXECUTION; | |
| 5035 } | |
| 5036 | |
| 5037 return EXCEPTION_CONTINUE_SEARCH; | |
| 5038 } | |
| 5039 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5040 // We don't build a headless jre for Windows |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5041 bool os::is_headless_jre() { return false; } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
5042 |
| 8872 | 5043 static jint initSock() { |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5044 WSADATA wsadata; |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5045 |
|
3833
b1cbb0907b36
7016797: Hotspot: securely/restrictive load dlls and new API for loading system dlls
zgu
parents:
3800
diff
changeset
|
5046 if (!os::WinSock2Dll::WinSock2Available()) { |
| 8872 | 5047 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
|
5048 ::GetLastError()); |
| 8872 | 5049 return JNI_ERR; |
| 5050 } | |
| 5051 | |
| 5052 if (os::WinSock2Dll::WSAStartup(MAKEWORD(2,2), &wsadata) != 0) { | |
| 5053 jio_fprintf(stderr, "Could not initialize Winsock (error: %d)\n", | |
| 5054 ::GetLastError()); | |
| 5055 return JNI_ERR; | |
| 5056 } | |
| 5057 return JNI_OK; | |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5058 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5059 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5060 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
|
5061 return (struct hostent*)os::WinSock2Dll::gethostbyname(name); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5062 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5063 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5064 int os::socket_close(int fd) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5065 return ::closesocket(fd); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5066 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5067 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5068 int os::socket_available(int fd, jint *pbytes) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5069 int ret = ::ioctlsocket(fd, FIONREAD, (u_long*)pbytes); |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5070 return (ret < 0) ? 0 : 1; |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5071 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5072 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5073 int os::socket(int domain, int type, int protocol) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5074 return ::socket(domain, type, protocol); |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5077 int os::listen(int fd, int count) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5078 return ::listen(fd, count); |
|
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 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5081 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
|
5082 return ::connect(fd, him, len); |
|
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 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5085 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
|
5086 return ::accept(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5087 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5088 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5089 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
|
5090 struct sockaddr* to, socklen_t tolen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5091 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5092 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
|
5093 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5094 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5095 int os::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
|
5096 sockaddr* from, socklen_t* fromlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5097 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5098 return ::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
|
5099 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5100 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5101 int os::recv(int fd, char* buf, size_t nBytes, uint flags) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5102 return ::recv(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5103 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5104 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5105 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
|
5106 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5107 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5108 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5109 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
|
5110 return ::send(fd, buf, (int)nBytes, flags); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5111 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5112 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5113 int os::timeout(int fd, long timeout) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5114 fd_set tbl; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5115 struct timeval t; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5116 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5117 t.tv_sec = timeout / 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5118 t.tv_usec = (timeout % 1000) * 1000; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5119 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5120 tbl.fd_count = 1; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5121 tbl.fd_array[0] = fd; |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5122 |
|
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5123 return ::select(1, &tbl, 0, 0, &t); |
|
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 |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5126 int os::get_host_name(char* name, int namelen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5127 return ::gethostname(name, namelen); |
|
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::socket_shutdown(int fd, int howto) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5131 return ::shutdown(fd, howto); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5132 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5133 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5134 int os::bind(int fd, struct sockaddr* him, socklen_t len) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5135 return ::bind(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5136 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5137 |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5138 int os::get_sock_name(int fd, struct sockaddr* him, socklen_t* len) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5139 return ::getsockname(fd, him, len); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5140 } |
|
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
ikrylov
parents:
1972
diff
changeset
|
5142 int os::get_sock_opt(int fd, int level, int optname, |
|
4717
11c26bfcf8c7
7091417: recvfrom's 6th input should be of type socklen_t
phh
parents:
4006
diff
changeset
|
5143 char* optval, socklen_t* optlen) { |
|
6044
ec15e8f6e4f1
7157695: Add windows implementation of socket interface
twisti
parents:
5903
diff
changeset
|
5144 return ::getsockopt(fd, level, optname, optval, optlen); |
|
1980
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
diff
changeset
|
5145 } |
|
828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
ikrylov
parents:
1972
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|
5146 |
|
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|
5147 int os::set_sock_opt(int fd, int level, int optname, |
|
4717
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|
5148 const char* optval, socklen_t optlen) { |
|
6044
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|
5149 return ::setsockopt(fd, level, optname, optval, optlen); |
|
1980
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|
5150 } |
|
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5151 |
| 10405 | 5152 // WINDOWS CONTEXT Flags for THREAD_SAMPLING |
| 5153 #if defined(IA32) | |
| 5154 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT | CONTEXT_EXTENDED_REGISTERS) | |
| 5155 #elif defined (AMD64) | |
| 5156 # define sampling_context_flags (CONTEXT_FULL | CONTEXT_FLOATING_POINT) | |
| 5157 #endif | |
| 5158 | |
| 5159 // returns true if thread could be suspended, | |
| 5160 // false otherwise | |
| 5161 static bool do_suspend(HANDLE* h) { | |
| 5162 if (h != NULL) { | |
| 5163 if (SuspendThread(*h) != ~0) { | |
| 5164 return true; | |
| 5165 } | |
| 5166 } | |
| 5167 return false; | |
| 5168 } | |
| 5169 | |
| 5170 // resume the thread | |
| 5171 // calling resume on an active thread is a no-op | |
| 5172 static void do_resume(HANDLE* h) { | |
| 5173 if (h != NULL) { | |
| 5174 ResumeThread(*h); | |
| 5175 } | |
| 5176 } | |
| 5177 | |
| 5178 // retrieve a suspend/resume context capable handle | |
| 5179 // from the tid. Caller validates handle return value. | |
| 5180 void get_thread_handle_for_extended_context(HANDLE* h, OSThread::thread_id_t tid) { | |
| 5181 if (h != NULL) { | |
| 5182 *h = OpenThread(THREAD_SUSPEND_RESUME | THREAD_GET_CONTEXT | THREAD_QUERY_INFORMATION, FALSE, tid); | |
| 5183 } | |
| 5184 } | |
| 5185 | |
| 5186 // | |
| 5187 // Thread sampling implementation | |
| 5188 // | |
| 5189 void os::SuspendedThreadTask::internal_do_task() { | |
| 5190 CONTEXT ctxt; | |
| 5191 HANDLE h = NULL; | |
| 5192 | |
| 5193 // get context capable handle for thread | |
| 5194 get_thread_handle_for_extended_context(&h, _thread->osthread()->thread_id()); | |
| 5195 | |
| 5196 // sanity | |
| 5197 if (h == NULL || h == INVALID_HANDLE_VALUE) { | |
| 5198 return; | |
| 5199 } | |
| 5200 | |
| 5201 // suspend the thread | |
| 5202 if (do_suspend(&h)) { | |
| 5203 ctxt.ContextFlags = sampling_context_flags; | |
| 5204 // get thread context | |
| 5205 GetThreadContext(h, &ctxt); | |
| 5206 SuspendedThreadTaskContext context(_thread, &ctxt); | |
| 5207 // pass context to Thread Sampling impl | |
| 5208 do_task(context); | |
| 5209 // resume thread | |
| 5210 do_resume(&h); | |
| 5211 } | |
| 5212 | |
| 5213 // close handle | |
| 5214 CloseHandle(h); | |
| 5215 } | |
| 5216 | |
|
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5217 |
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|
5218 // Kernel32 API |
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5219 typedef SIZE_T (WINAPI* GetLargePageMinimum_Fn)(void); |
| 3885 | 5220 typedef LPVOID (WINAPI *VirtualAllocExNuma_Fn) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
| 5221 typedef BOOL (WINAPI *GetNumaHighestNodeNumber_Fn) (PULONG); | |
| 5222 typedef BOOL (WINAPI *GetNumaNodeProcessorMask_Fn) (UCHAR, PULONGLONG); | |
| 6197 | 5223 typedef USHORT (WINAPI* RtlCaptureStackBackTrace_Fn)(ULONG, ULONG, PVOID*, PULONG); |
| 3885 | 5224 |
|
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|
5225 GetLargePageMinimum_Fn os::Kernel32Dll::_GetLargePageMinimum = NULL; |
| 3885 | 5226 VirtualAllocExNuma_Fn os::Kernel32Dll::_VirtualAllocExNuma = NULL; |
| 5227 GetNumaHighestNodeNumber_Fn os::Kernel32Dll::_GetNumaHighestNodeNumber = NULL; | |
| 5228 GetNumaNodeProcessorMask_Fn os::Kernel32Dll::_GetNumaNodeProcessorMask = NULL; | |
| 6197 | 5229 RtlCaptureStackBackTrace_Fn os::Kernel32Dll::_RtlCaptureStackBackTrace = NULL; |
| 5230 | |
| 5231 | |
|
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|
5232 BOOL os::Kernel32Dll::initialized = FALSE; |
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|
5233 SIZE_T os::Kernel32Dll::GetLargePageMinimum() { |
|
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|
5234 assert(initialized && _GetLargePageMinimum != NULL, |
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|
5235 "GetLargePageMinimumAvailable() not yet called"); |
|
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|
5236 return _GetLargePageMinimum(); |
|
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|
5237 } |
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|
5238 |
|
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|
5239 BOOL os::Kernel32Dll::GetLargePageMinimumAvailable() { |
|
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|
5240 if (!initialized) { |
|
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|
5241 initialize(); |
|
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|
5242 } |
|
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|
5243 return _GetLargePageMinimum != NULL; |
|
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|
5244 } |
|
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|
5245 |
| 3885 | 5246 BOOL os::Kernel32Dll::NumaCallsAvailable() { |
| 5247 if (!initialized) { | |
| 5248 initialize(); | |
| 5249 } | |
| 5250 return _VirtualAllocExNuma != NULL; | |
| 5251 } | |
| 5252 | |
| 5253 LPVOID os::Kernel32Dll::VirtualAllocExNuma(HANDLE hProc, LPVOID addr, SIZE_T bytes, DWORD flags, DWORD prot, DWORD node) { | |
| 5254 assert(initialized && _VirtualAllocExNuma != NULL, | |
| 5255 "NUMACallsAvailable() not yet called"); | |
| 5256 | |
| 5257 return _VirtualAllocExNuma(hProc, addr, bytes, flags, prot, node); | |
| 5258 } | |
| 5259 | |
| 5260 BOOL os::Kernel32Dll::GetNumaHighestNodeNumber(PULONG ptr_highest_node_number) { | |
| 5261 assert(initialized && _GetNumaHighestNodeNumber != NULL, | |
| 5262 "NUMACallsAvailable() not yet called"); | |
| 5263 | |
| 5264 return _GetNumaHighestNodeNumber(ptr_highest_node_number); | |
| 5265 } | |
| 5266 | |
| 5267 BOOL os::Kernel32Dll::GetNumaNodeProcessorMask(UCHAR node, PULONGLONG proc_mask) { | |
| 5268 assert(initialized && _GetNumaNodeProcessorMask != NULL, | |
| 5269 "NUMACallsAvailable() not yet called"); | |
| 5270 | |
| 5271 return _GetNumaNodeProcessorMask(node, proc_mask); | |
| 5272 } | |
| 5273 | |
| 6197 | 5274 USHORT os::Kernel32Dll::RtlCaptureStackBackTrace(ULONG FrameToSkip, |
| 5275 ULONG FrameToCapture, PVOID* BackTrace, PULONG BackTraceHash) { | |
| 5276 if (!initialized) { | |
| 5277 initialize(); | |
| 5278 } | |
| 5279 | |
| 5280 if (_RtlCaptureStackBackTrace != NULL) { | |
| 5281 return _RtlCaptureStackBackTrace(FrameToSkip, FrameToCapture, | |
| 5282 BackTrace, BackTraceHash); | |
| 5283 } else { | |
| 5284 return 0; | |
| 5285 } | |
| 5286 } | |
| 3885 | 5287 |
| 5288 void os::Kernel32Dll::initializeCommon() { | |
| 5289 if (!initialized) { | |
| 5290 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); | |
| 5291 assert(handle != NULL, "Just check"); | |
| 5292 _GetLargePageMinimum = (GetLargePageMinimum_Fn)::GetProcAddress(handle, "GetLargePageMinimum"); | |
| 5293 _VirtualAllocExNuma = (VirtualAllocExNuma_Fn)::GetProcAddress(handle, "VirtualAllocExNuma"); | |
| 5294 _GetNumaHighestNodeNumber = (GetNumaHighestNodeNumber_Fn)::GetProcAddress(handle, "GetNumaHighestNodeNumber"); | |
| 5295 _GetNumaNodeProcessorMask = (GetNumaNodeProcessorMask_Fn)::GetProcAddress(handle, "GetNumaNodeProcessorMask"); | |
| 6197 | 5296 _RtlCaptureStackBackTrace = (RtlCaptureStackBackTrace_Fn)::GetProcAddress(handle, "RtlCaptureStackBackTrace"); |
| 3885 | 5297 initialized = TRUE; |
| 5298 } | |
| 5299 } | |
| 5300 | |
| 5301 | |
|
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|
5302 |
|
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|
5303 #ifndef JDK6_OR_EARLIER |
|
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|
5304 |
|
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|
5305 void os::Kernel32Dll::initialize() { |
| 3885 | 5306 initializeCommon(); |
|
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|
5307 } |
|
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|
5308 |
|
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|
5309 |
|
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|
5310 // Kernel32 API |
|
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|
5311 inline BOOL os::Kernel32Dll::SwitchToThread() { |
|
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|
5312 return ::SwitchToThread(); |
|
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|
5313 } |
|
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|
5314 |
|
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|
5315 inline BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
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|
5316 return true; |
|
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|
5317 } |
|
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|
5318 |
|
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|
5319 // Help tools |
|
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|
5320 inline BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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|
5321 return true; |
|
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|
5322 } |
|
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|
5323 |
|
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|
5324 inline HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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|
5325 return ::CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
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|
5326 } |
|
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|
5327 |
|
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|
5328 inline BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5329 return ::Module32First(hSnapshot, lpme); |
|
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|
5330 } |
|
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|
5331 |
|
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|
5332 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5333 return ::Module32Next(hSnapshot, lpme); |
|
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|
5334 } |
|
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|
5335 |
|
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|
5336 |
|
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|
5337 inline BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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|
5338 return true; |
|
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|
5339 } |
|
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|
5340 |
|
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|
5341 inline void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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|
5342 ::GetNativeSystemInfo(lpSystemInfo); |
|
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|
5343 } |
|
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|
5344 |
|
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|
5345 // PSAPI API |
|
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|
5346 inline BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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5347 return ::EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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|
5348 } |
|
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|
5349 |
|
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|
5350 inline DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5351 return ::GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5352 } |
|
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|
5353 |
|
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|
5354 inline BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5355 return ::GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5356 } |
|
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|
5357 |
|
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|
5358 inline BOOL os::PSApiDll::PSApiAvailable() { |
|
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5359 return true; |
|
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5360 } |
|
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5361 |
|
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|
5362 |
|
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5363 // WinSock2 API |
|
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5364 inline BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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5365 return ::WSAStartup(wVersionRequested, lpWSAData); |
|
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5366 } |
|
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5367 |
|
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5368 inline struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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5369 return ::gethostbyname(name); |
|
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5370 } |
|
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|
5371 |
|
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5372 inline BOOL os::WinSock2Dll::WinSock2Available() { |
|
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5373 return true; |
|
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5374 } |
|
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|
5375 |
|
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5376 // Advapi API |
|
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5377 inline BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
|
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5378 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
|
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5379 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
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5380 return ::AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
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5381 BufferLength, PreviousState, ReturnLength); |
|
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5382 } |
|
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|
5383 |
|
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5384 inline BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
|
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5385 PHANDLE TokenHandle) { |
|
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5386 return ::OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
|
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|
5387 } |
|
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|
5388 |
|
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|
5389 inline BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
|
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|
5390 return ::LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
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|
5391 } |
|
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|
5392 |
|
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|
5393 inline BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
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|
5394 return true; |
|
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|
5395 } |
|
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|
5396 |
|
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|
5397 #else |
|
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|
5398 // Kernel32 API |
|
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5399 typedef BOOL (WINAPI* SwitchToThread_Fn)(void); |
|
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5400 typedef HANDLE (WINAPI* CreateToolhelp32Snapshot_Fn)(DWORD,DWORD); |
|
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5401 typedef BOOL (WINAPI* Module32First_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
5402 typedef BOOL (WINAPI* Module32Next_Fn)(HANDLE,LPMODULEENTRY32); |
|
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|
5403 typedef void (WINAPI* GetNativeSystemInfo_Fn)(LPSYSTEM_INFO); |
|
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|
5404 |
|
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|
5405 SwitchToThread_Fn os::Kernel32Dll::_SwitchToThread = NULL; |
|
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|
5406 CreateToolhelp32Snapshot_Fn os::Kernel32Dll::_CreateToolhelp32Snapshot = NULL; |
|
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|
5407 Module32First_Fn os::Kernel32Dll::_Module32First = NULL; |
|
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|
5408 Module32Next_Fn os::Kernel32Dll::_Module32Next = NULL; |
|
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|
5409 GetNativeSystemInfo_Fn os::Kernel32Dll::_GetNativeSystemInfo = NULL; |
|
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|
5410 |
|
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|
5411 void os::Kernel32Dll::initialize() { |
|
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5412 if (!initialized) { |
|
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|
5413 HMODULE handle = ::GetModuleHandle("Kernel32.dll"); |
|
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|
5414 assert(handle != NULL, "Just check"); |
|
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|
5415 |
|
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|
5416 _SwitchToThread = (SwitchToThread_Fn)::GetProcAddress(handle, "SwitchToThread"); |
|
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|
5417 _CreateToolhelp32Snapshot = (CreateToolhelp32Snapshot_Fn) |
|
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|
5418 ::GetProcAddress(handle, "CreateToolhelp32Snapshot"); |
|
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|
5419 _Module32First = (Module32First_Fn)::GetProcAddress(handle, "Module32First"); |
|
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|
5420 _Module32Next = (Module32Next_Fn)::GetProcAddress(handle, "Module32Next"); |
|
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|
5421 _GetNativeSystemInfo = (GetNativeSystemInfo_Fn)::GetProcAddress(handle, "GetNativeSystemInfo"); |
| 3885 | 5422 initializeCommon(); // resolve the functions that always need resolving |
|
3833
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|
5423 |
|
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|
5424 initialized = TRUE; |
|
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|
5425 } |
|
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|
5426 } |
|
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|
5427 |
|
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|
5428 BOOL os::Kernel32Dll::SwitchToThread() { |
|
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|
5429 assert(initialized && _SwitchToThread != NULL, |
|
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|
5430 "SwitchToThreadAvailable() not yet called"); |
|
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|
5431 return _SwitchToThread(); |
|
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|
5432 } |
|
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|
5433 |
|
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|
5434 |
|
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|
5435 BOOL os::Kernel32Dll::SwitchToThreadAvailable() { |
|
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|
5436 if (!initialized) { |
|
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|
5437 initialize(); |
|
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|
5438 } |
|
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|
5439 return _SwitchToThread != NULL; |
|
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|
5440 } |
|
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|
5441 |
|
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|
5442 // Help tools |
|
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|
5443 BOOL os::Kernel32Dll::HelpToolsAvailable() { |
|
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|
5444 if (!initialized) { |
|
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|
5445 initialize(); |
|
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|
5446 } |
|
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|
5447 return _CreateToolhelp32Snapshot != NULL && |
|
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|
5448 _Module32First != NULL && |
|
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|
5449 _Module32Next != NULL; |
|
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|
5450 } |
|
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|
5451 |
|
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|
5452 HANDLE os::Kernel32Dll::CreateToolhelp32Snapshot(DWORD dwFlags,DWORD th32ProcessId) { |
|
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|
5453 assert(initialized && _CreateToolhelp32Snapshot != NULL, |
|
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|
5454 "HelpToolsAvailable() not yet called"); |
|
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|
5455 |
|
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|
5456 return _CreateToolhelp32Snapshot(dwFlags, th32ProcessId); |
|
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|
5457 } |
|
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|
5458 |
|
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|
5459 BOOL os::Kernel32Dll::Module32First(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5460 assert(initialized && _Module32First != NULL, |
|
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|
5461 "HelpToolsAvailable() not yet called"); |
|
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|
5462 |
|
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|
5463 return _Module32First(hSnapshot, lpme); |
|
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|
5464 } |
|
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|
5465 |
|
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|
5466 inline BOOL os::Kernel32Dll::Module32Next(HANDLE hSnapshot,LPMODULEENTRY32 lpme) { |
|
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|
5467 assert(initialized && _Module32Next != NULL, |
|
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|
5468 "HelpToolsAvailable() not yet called"); |
|
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|
5469 |
|
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|
5470 return _Module32Next(hSnapshot, lpme); |
|
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|
5471 } |
|
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|
5472 |
|
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|
5473 |
|
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|
5474 BOOL os::Kernel32Dll::GetNativeSystemInfoAvailable() { |
|
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|
5475 if (!initialized) { |
|
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|
5476 initialize(); |
|
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|
5477 } |
|
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|
5478 return _GetNativeSystemInfo != NULL; |
|
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|
5479 } |
|
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|
5480 |
|
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|
5481 void os::Kernel32Dll::GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) { |
|
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|
5482 assert(initialized && _GetNativeSystemInfo != NULL, |
|
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|
5483 "GetNativeSystemInfoAvailable() not yet called"); |
|
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|
5484 |
|
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|
5485 _GetNativeSystemInfo(lpSystemInfo); |
|
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|
5486 } |
|
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|
5487 |
|
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|
5488 // PSAPI API |
|
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|
5489 |
|
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|
5490 |
|
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|
5491 typedef BOOL (WINAPI *EnumProcessModules_Fn)(HANDLE, HMODULE *, DWORD, LPDWORD); |
|
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|
5492 typedef BOOL (WINAPI *GetModuleFileNameEx_Fn)(HANDLE, HMODULE, LPTSTR, DWORD);; |
|
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|
5493 typedef BOOL (WINAPI *GetModuleInformation_Fn)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
|
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|
5494 |
|
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|
5495 EnumProcessModules_Fn os::PSApiDll::_EnumProcessModules = NULL; |
|
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|
5496 GetModuleFileNameEx_Fn os::PSApiDll::_GetModuleFileNameEx = NULL; |
|
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|
5497 GetModuleInformation_Fn os::PSApiDll::_GetModuleInformation = NULL; |
|
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|
5498 BOOL os::PSApiDll::initialized = FALSE; |
|
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|
5499 |
|
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|
5500 void os::PSApiDll::initialize() { |
|
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|
5501 if (!initialized) { |
|
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|
5502 HMODULE handle = os::win32::load_Windows_dll("PSAPI.DLL", NULL, 0); |
|
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|
5503 if (handle != NULL) { |
|
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|
5504 _EnumProcessModules = (EnumProcessModules_Fn)::GetProcAddress(handle, |
|
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|
5505 "EnumProcessModules"); |
|
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|
5506 _GetModuleFileNameEx = (GetModuleFileNameEx_Fn)::GetProcAddress(handle, |
|
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|
5507 "GetModuleFileNameExA"); |
|
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|
5508 _GetModuleInformation = (GetModuleInformation_Fn)::GetProcAddress(handle, |
|
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|
5509 "GetModuleInformation"); |
|
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|
5510 } |
|
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|
5511 initialized = TRUE; |
|
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|
5512 } |
|
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|
5513 } |
|
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|
5514 |
|
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|
5515 |
|
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|
5516 |
|
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|
5517 BOOL os::PSApiDll::EnumProcessModules(HANDLE hProcess, HMODULE *lpModule, DWORD cb, LPDWORD lpcbNeeded) { |
|
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|
5518 assert(initialized && _EnumProcessModules != NULL, |
|
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|
5519 "PSApiAvailable() not yet called"); |
|
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|
5520 return _EnumProcessModules(hProcess, lpModule, cb, lpcbNeeded); |
|
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|
5521 } |
|
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|
5522 |
|
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|
5523 DWORD os::PSApiDll::GetModuleFileNameEx(HANDLE hProcess, HMODULE hModule, LPTSTR lpFilename, DWORD nSize) { |
|
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|
5524 assert(initialized && _GetModuleFileNameEx != NULL, |
|
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|
5525 "PSApiAvailable() not yet called"); |
|
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|
5526 return _GetModuleFileNameEx(hProcess, hModule, lpFilename, nSize); |
|
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|
5527 } |
|
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|
5528 |
|
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|
5529 BOOL os::PSApiDll::GetModuleInformation(HANDLE hProcess, HMODULE hModule, LPMODULEINFO lpmodinfo, DWORD cb) { |
|
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|
5530 assert(initialized && _GetModuleInformation != NULL, |
|
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|
5531 "PSApiAvailable() not yet called"); |
|
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|
5532 return _GetModuleInformation(hProcess, hModule, lpmodinfo, cb); |
|
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|
5533 } |
|
b1cbb0907b36
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|
5534 |
|
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|
5535 BOOL os::PSApiDll::PSApiAvailable() { |
|
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|
5536 if (!initialized) { |
|
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|
5537 initialize(); |
|
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|
5538 } |
|
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|
5539 return _EnumProcessModules != NULL && |
|
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|
5540 _GetModuleFileNameEx != NULL && |
|
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|
5541 _GetModuleInformation != NULL; |
|
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|
5542 } |
|
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|
5543 |
|
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|
5544 |
|
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|
5545 // WinSock2 API |
|
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|
5546 typedef int (PASCAL FAR* WSAStartup_Fn)(WORD, LPWSADATA); |
|
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|
5547 typedef struct hostent *(PASCAL FAR *gethostbyname_Fn)(...); |
|
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|
5548 |
|
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|
5549 WSAStartup_Fn os::WinSock2Dll::_WSAStartup = NULL; |
|
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|
5550 gethostbyname_Fn os::WinSock2Dll::_gethostbyname = NULL; |
|
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|
5551 BOOL os::WinSock2Dll::initialized = FALSE; |
|
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|
5552 |
|
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|
5553 void os::WinSock2Dll::initialize() { |
|
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|
5554 if (!initialized) { |
|
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|
5555 HMODULE handle = os::win32::load_Windows_dll("ws2_32.dll", NULL, 0); |
|
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|
5556 if (handle != NULL) { |
|
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|
5557 _WSAStartup = (WSAStartup_Fn)::GetProcAddress(handle, "WSAStartup"); |
|
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|
5558 _gethostbyname = (gethostbyname_Fn)::GetProcAddress(handle, "gethostbyname"); |
|
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|
5559 } |
|
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|
5560 initialized = TRUE; |
|
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|
5561 } |
|
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|
5562 } |
|
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changeset
|
5563 |
|
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changeset
|
5564 |
|
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|
5565 BOOL os::WinSock2Dll::WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData) { |
|
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|
5566 assert(initialized && _WSAStartup != NULL, |
|
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|
5567 "WinSock2Available() not yet called"); |
|
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|
5568 return _WSAStartup(wVersionRequested, lpWSAData); |
|
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|
5569 } |
|
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changeset
|
5570 |
|
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|
5571 struct hostent* os::WinSock2Dll::gethostbyname(const char *name) { |
|
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|
5572 assert(initialized && _gethostbyname != NULL, |
|
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|
5573 "WinSock2Available() not yet called"); |
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5574 return _gethostbyname(name); |
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5575 } |
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|
5576 |
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5577 BOOL os::WinSock2Dll::WinSock2Available() { |
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5578 if (!initialized) { |
|
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5579 initialize(); |
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5580 } |
|
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5581 return _WSAStartup != NULL && |
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5582 _gethostbyname != NULL; |
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5583 } |
|
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5584 |
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5585 typedef BOOL (WINAPI *AdjustTokenPrivileges_Fn)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
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5586 typedef BOOL (WINAPI *OpenProcessToken_Fn)(HANDLE, DWORD, PHANDLE); |
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5587 typedef BOOL (WINAPI *LookupPrivilegeValue_Fn)(LPCTSTR, LPCTSTR, PLUID); |
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5588 |
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5589 AdjustTokenPrivileges_Fn os::Advapi32Dll::_AdjustTokenPrivileges = NULL; |
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5590 OpenProcessToken_Fn os::Advapi32Dll::_OpenProcessToken = NULL; |
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5591 LookupPrivilegeValue_Fn os::Advapi32Dll::_LookupPrivilegeValue = NULL; |
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5592 BOOL os::Advapi32Dll::initialized = FALSE; |
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5593 |
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5594 void os::Advapi32Dll::initialize() { |
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5595 if (!initialized) { |
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5596 HMODULE handle = os::win32::load_Windows_dll("advapi32.dll", NULL, 0); |
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5597 if (handle != NULL) { |
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5598 _AdjustTokenPrivileges = (AdjustTokenPrivileges_Fn)::GetProcAddress(handle, |
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5599 "AdjustTokenPrivileges"); |
|
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5600 _OpenProcessToken = (OpenProcessToken_Fn)::GetProcAddress(handle, |
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5601 "OpenProcessToken"); |
|
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5602 _LookupPrivilegeValue = (LookupPrivilegeValue_Fn)::GetProcAddress(handle, |
|
3834
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|
5603 "LookupPrivilegeValueA"); |
|
3833
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|
5604 } |
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|
5605 initialized = TRUE; |
|
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|
5606 } |
|
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|
5607 } |
|
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|
5608 |
|
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|
5609 BOOL os::Advapi32Dll::AdjustTokenPrivileges(HANDLE TokenHandle, |
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|
5610 BOOL DisableAllPrivileges, PTOKEN_PRIVILEGES NewState, DWORD BufferLength, |
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|
5611 PTOKEN_PRIVILEGES PreviousState, PDWORD ReturnLength) { |
|
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|
5612 assert(initialized && _AdjustTokenPrivileges != NULL, |
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|
5613 "AdvapiAvailable() not yet called"); |
|
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|
5614 return _AdjustTokenPrivileges(TokenHandle, DisableAllPrivileges, NewState, |
|
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|
5615 BufferLength, PreviousState, ReturnLength); |
|
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|
5616 } |
|
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|
5617 |
|
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|
5618 BOOL os::Advapi32Dll::OpenProcessToken(HANDLE ProcessHandle, DWORD DesiredAccess, |
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|
5619 PHANDLE TokenHandle) { |
|
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|
5620 assert(initialized && _OpenProcessToken != NULL, |
|
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|
5621 "AdvapiAvailable() not yet called"); |
|
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5622 return _OpenProcessToken(ProcessHandle, DesiredAccess, TokenHandle); |
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|
5623 } |
|
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|
5624 |
|
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|
5625 BOOL os::Advapi32Dll::LookupPrivilegeValue(LPCTSTR lpSystemName, LPCTSTR lpName, PLUID lpLuid) { |
|
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|
5626 assert(initialized && _LookupPrivilegeValue != NULL, |
|
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|
5627 "AdvapiAvailable() not yet called"); |
|
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|
5628 return _LookupPrivilegeValue(lpSystemName, lpName, lpLuid); |
|
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|
5629 } |
|
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|
5630 |
|
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|
5631 BOOL os::Advapi32Dll::AdvapiAvailable() { |
|
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|
5632 if (!initialized) { |
|
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|
5633 initialize(); |
|
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|
5634 } |
|
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|
5635 return _AdjustTokenPrivileges != NULL && |
|
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|
5636 _OpenProcessToken != NULL && |
|
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|
5637 _LookupPrivilegeValue != NULL; |
|
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|
5638 } |
|
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|
5639 |
|
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5640 #endif |