hotspot/src/os/windows/vm/os_windows.cpp
author zgu
Wed, 22 Dec 2010 11:52:12 -0500
changeset 7693 83e7f7a7c59b
parent 7692 02c573fae027
parent 7452 b3fa838286de
child 7901 ea3d83447861
permissions -rw-r--r--
Merge
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     1
/*
7692
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
     2
 * CopyrighT (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     4
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
489c9b5090e2 Initial load
duke
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
489c9b5090e2 Initial load
duke
parents:
diff changeset
     7
 * published by the Free Software Foundation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
     8
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
489c9b5090e2 Initial load
duke
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
489c9b5090e2 Initial load
duke
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
489c9b5090e2 Initial load
duke
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
489c9b5090e2 Initial load
duke
parents:
diff changeset
    13
 * accompanied this code).
489c9b5090e2 Initial load
duke
parents:
diff changeset
    14
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
489c9b5090e2 Initial load
duke
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
489c9b5090e2 Initial load
duke
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
489c9b5090e2 Initial load
duke
parents:
diff changeset
    18
 *
5547
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5403
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5403
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
f4b087cbb361 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 5403
diff changeset
    21
 * questions.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    22
 *
489c9b5090e2 Initial load
duke
parents:
diff changeset
    23
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
    24
489c9b5090e2 Initial load
duke
parents:
diff changeset
    25
#ifdef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
    26
// Must be at least Windows 2000 or XP to use VectoredExceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
    27
#define _WIN32_WINNT 0x500
489c9b5090e2 Initial load
duke
parents:
diff changeset
    28
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
    29
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    30
// no precompiled headers
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    31
#include "classfile/classLoader.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    32
#include "classfile/systemDictionary.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    33
#include "classfile/vmSymbols.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    34
#include "code/icBuffer.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    35
#include "code/vtableStubs.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    36
#include "compiler/compileBroker.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    37
#include "interpreter/interpreter.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    38
#include "jvm_windows.h"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    39
#include "memory/allocation.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    40
#include "memory/filemap.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    41
#include "mutex_windows.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    42
#include "oops/oop.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    43
#include "os_share_windows.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    44
#include "prims/jniFastGetField.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    45
#include "prims/jvm.h"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    46
#include "prims/jvm_misc.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    47
#include "runtime/arguments.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    48
#include "runtime/extendedPC.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    49
#include "runtime/globals.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    50
#include "runtime/interfaceSupport.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    51
#include "runtime/java.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    52
#include "runtime/javaCalls.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    53
#include "runtime/mutexLocker.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    54
#include "runtime/objectMonitor.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    55
#include "runtime/osThread.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    56
#include "runtime/perfMemory.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    57
#include "runtime/sharedRuntime.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    58
#include "runtime/statSampler.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    59
#include "runtime/stubRoutines.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    60
#include "runtime/threadCritical.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    61
#include "runtime/timer.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    62
#include "services/attachListener.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    63
#include "services/runtimeService.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    64
#include "thread_windows.inline.hpp"
7447
32c42d627f41 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents: 7397
diff changeset
    65
#include "utilities/decoder.hpp"
7397
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    66
#include "utilities/defaultStream.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    67
#include "utilities/events.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    68
#include "utilities/growableArray.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    69
#include "utilities/vmError.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    70
#ifdef TARGET_ARCH_x86
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    71
# include "assembler_x86.inline.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    72
# include "nativeInst_x86.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    73
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    74
#ifdef COMPILER1
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    75
#include "c1/c1_Runtime1.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    76
#endif
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    77
#ifdef COMPILER2
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    78
#include "opto/runtime.hpp"
5b173b4ca846 6989984: Use standard include model for Hospot
stefank
parents: 6964
diff changeset
    79
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
    80
489c9b5090e2 Initial load
duke
parents:
diff changeset
    81
#ifdef _DEBUG
489c9b5090e2 Initial load
duke
parents:
diff changeset
    82
#include <crtdbg.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    83
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
    84
489c9b5090e2 Initial load
duke
parents:
diff changeset
    85
489c9b5090e2 Initial load
duke
parents:
diff changeset
    86
#include <windows.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    87
#include <sys/types.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    88
#include <sys/stat.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    89
#include <sys/timeb.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    90
#include <objidl.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    91
#include <shlobj.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    92
489c9b5090e2 Initial load
duke
parents:
diff changeset
    93
#include <malloc.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    94
#include <signal.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    95
#include <direct.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    96
#include <errno.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    97
#include <fcntl.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    98
#include <io.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
    99
#include <process.h>              // For _beginthreadex(), _endthreadex()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   100
#include <imagehlp.h>             // For os::dll_address_to_function_name
489c9b5090e2 Initial load
duke
parents:
diff changeset
   101
489c9b5090e2 Initial load
duke
parents:
diff changeset
   102
/* for enumerating dll libraries */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   103
#include <tlhelp32.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
   104
#include <vdmdbg.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
   105
489c9b5090e2 Initial load
duke
parents:
diff changeset
   106
// for timer info max values which include all bits
489c9b5090e2 Initial load
duke
parents:
diff changeset
   107
#define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   108
489c9b5090e2 Initial load
duke
parents:
diff changeset
   109
// For DLL loading/load error detection
489c9b5090e2 Initial load
duke
parents:
diff changeset
   110
// Values of PE COFF
489c9b5090e2 Initial load
duke
parents:
diff changeset
   111
#define IMAGE_FILE_PTR_TO_SIGNATURE 0x3c
489c9b5090e2 Initial load
duke
parents:
diff changeset
   112
#define IMAGE_FILE_SIGNATURE_LENGTH 4
489c9b5090e2 Initial load
duke
parents:
diff changeset
   113
489c9b5090e2 Initial load
duke
parents:
diff changeset
   114
static HANDLE main_process;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   115
static HANDLE main_thread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   116
static int    main_thread_id;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   117
489c9b5090e2 Initial load
duke
parents:
diff changeset
   118
static FILETIME process_creation_time;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   119
static FILETIME process_exit_time;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   120
static FILETIME process_user_time;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   121
static FILETIME process_kernel_time;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   122
489c9b5090e2 Initial load
duke
parents:
diff changeset
   123
#ifdef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   124
PVOID  topLevelVectoredExceptionHandler = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   125
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   126
489c9b5090e2 Initial load
duke
parents:
diff changeset
   127
#ifdef _M_IA64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   128
#define __CPU__ ia64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   129
#elif _M_AMD64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   130
#define __CPU__ amd64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   131
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   132
#define __CPU__ i486
489c9b5090e2 Initial load
duke
parents:
diff changeset
   133
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   134
489c9b5090e2 Initial load
duke
parents:
diff changeset
   135
// save DLL module handle, used by GetModuleFileName
489c9b5090e2 Initial load
duke
parents:
diff changeset
   136
489c9b5090e2 Initial load
duke
parents:
diff changeset
   137
HINSTANCE vm_lib_handle;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   138
static int getLastErrorString(char *buf, size_t len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   139
489c9b5090e2 Initial load
duke
parents:
diff changeset
   140
BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   141
  switch (reason) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   142
    case DLL_PROCESS_ATTACH:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   143
      vm_lib_handle = hinst;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   144
      if(ForceTimeHighResolution)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   145
        timeBeginPeriod(1L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   146
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   147
    case DLL_PROCESS_DETACH:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   148
      if(ForceTimeHighResolution)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   149
        timeEndPeriod(1L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   150
#ifdef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   151
      if (topLevelVectoredExceptionHandler != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   152
        RemoveVectoredExceptionHandler(topLevelVectoredExceptionHandler);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   153
        topLevelVectoredExceptionHandler = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   154
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   155
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   156
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   157
    default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   158
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   159
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   160
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   161
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   162
489c9b5090e2 Initial load
duke
parents:
diff changeset
   163
static inline double fileTimeAsDouble(FILETIME* time) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   164
  const double high  = (double) ((unsigned int) ~0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   165
  const double split = 10000000.0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   166
  double result = (time->dwLowDateTime / split) +
489c9b5090e2 Initial load
duke
parents:
diff changeset
   167
                   time->dwHighDateTime * (high/split);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   168
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   169
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   170
489c9b5090e2 Initial load
duke
parents:
diff changeset
   171
// Implementation of os
489c9b5090e2 Initial load
duke
parents:
diff changeset
   172
489c9b5090e2 Initial load
duke
parents:
diff changeset
   173
bool os::getenv(const char* name, char* buffer, int len) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   174
 int result = GetEnvironmentVariable(name, buffer, len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   175
 return result > 0 && result < len;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   176
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   177
489c9b5090e2 Initial load
duke
parents:
diff changeset
   178
489c9b5090e2 Initial load
duke
parents:
diff changeset
   179
// No setuid programs under Windows.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   180
bool os::have_special_privileges() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   181
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   182
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   183
489c9b5090e2 Initial load
duke
parents:
diff changeset
   184
489c9b5090e2 Initial load
duke
parents:
diff changeset
   185
// This method is  a periodic task to check for misbehaving JNI applications
489c9b5090e2 Initial load
duke
parents:
diff changeset
   186
// under CheckJNI, we can add any periodic checks here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   187
// For Windows at the moment does nothing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   188
void os::run_periodic_checks() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   189
  return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   190
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   191
489c9b5090e2 Initial load
duke
parents:
diff changeset
   192
#ifndef _WIN64
4762
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
   193
// previous UnhandledExceptionFilter, if there is one
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
   194
static LPTOP_LEVEL_EXCEPTION_FILTER prev_uef_handler = NULL;
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
   195
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   196
LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   197
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   198
void os::init_system_properties_values() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   199
  /* sysclasspath, java_home, dll_dir */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   200
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   201
      char *home_path;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   202
      char *dll_path;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   203
      char *pslash;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   204
      char *bin = "\\bin";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   205
      char home_dir[MAX_PATH];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   206
489c9b5090e2 Initial load
duke
parents:
diff changeset
   207
      if (!getenv("_ALT_JAVA_HOME_DIR", home_dir, MAX_PATH)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   208
          os::jvm_path(home_dir, sizeof(home_dir));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   209
          // Found the full path to jvm[_g].dll.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   210
          // Now cut the path to <java_home>/jre if we can.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   211
          *(strrchr(home_dir, '\\')) = '\0';  /* get rid of \jvm.dll */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   212
          pslash = strrchr(home_dir, '\\');
489c9b5090e2 Initial load
duke
parents:
diff changeset
   213
          if (pslash != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   214
              *pslash = '\0';                 /* get rid of \{client|server} */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   215
              pslash = strrchr(home_dir, '\\');
489c9b5090e2 Initial load
duke
parents:
diff changeset
   216
              if (pslash != NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   217
                  *pslash = '\0';             /* get rid of \bin */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   218
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   219
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   220
489c9b5090e2 Initial load
duke
parents:
diff changeset
   221
      home_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   222
      if (home_path == NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   223
          return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   224
      strcpy(home_path, home_dir);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   225
      Arguments::set_java_home(home_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   226
489c9b5090e2 Initial load
duke
parents:
diff changeset
   227
      dll_path = NEW_C_HEAP_ARRAY(char, strlen(home_dir) + strlen(bin) + 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   228
      if (dll_path == NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   229
          return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   230
      strcpy(dll_path, home_dir);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   231
      strcat(dll_path, bin);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   232
      Arguments::set_dll_dir(dll_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   233
489c9b5090e2 Initial load
duke
parents:
diff changeset
   234
      if (!set_boot_path('\\', ';'))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   235
          return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   236
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   237
489c9b5090e2 Initial load
duke
parents:
diff changeset
   238
  /* library_path */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   239
  #define EXT_DIR "\\lib\\ext"
489c9b5090e2 Initial load
duke
parents:
diff changeset
   240
  #define BIN_DIR "\\bin"
489c9b5090e2 Initial load
duke
parents:
diff changeset
   241
  #define PACKAGE_DIR "\\Sun\\Java"
489c9b5090e2 Initial load
duke
parents:
diff changeset
   242
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   243
    /* Win32 library search order (See the documentation for LoadLibrary):
489c9b5090e2 Initial load
duke
parents:
diff changeset
   244
     *
489c9b5090e2 Initial load
duke
parents:
diff changeset
   245
     * 1. The directory from which application is loaded.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   246
     * 2. The current directory
489c9b5090e2 Initial load
duke
parents:
diff changeset
   247
     * 3. The system wide Java Extensions directory (Java only)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   248
     * 4. System directory (GetSystemDirectory)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   249
     * 5. Windows directory (GetWindowsDirectory)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   250
     * 6. The PATH environment variable
489c9b5090e2 Initial load
duke
parents:
diff changeset
   251
     */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   252
489c9b5090e2 Initial load
duke
parents:
diff changeset
   253
    char *library_path;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   254
    char tmp[MAX_PATH];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   255
    char *path_str = ::getenv("PATH");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   256
489c9b5090e2 Initial load
duke
parents:
diff changeset
   257
    library_path = NEW_C_HEAP_ARRAY(char, MAX_PATH * 5 + sizeof(PACKAGE_DIR) +
489c9b5090e2 Initial load
duke
parents:
diff changeset
   258
        sizeof(BIN_DIR) + (path_str ? strlen(path_str) : 0) + 10);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   259
489c9b5090e2 Initial load
duke
parents:
diff changeset
   260
    library_path[0] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   261
489c9b5090e2 Initial load
duke
parents:
diff changeset
   262
    GetModuleFileName(NULL, tmp, sizeof(tmp));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   263
    *(strrchr(tmp, '\\')) = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   264
    strcat(library_path, tmp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   265
489c9b5090e2 Initial load
duke
parents:
diff changeset
   266
    strcat(library_path, ";.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   267
489c9b5090e2 Initial load
duke
parents:
diff changeset
   268
    GetWindowsDirectory(tmp, sizeof(tmp));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   269
    strcat(library_path, ";");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   270
    strcat(library_path, tmp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   271
    strcat(library_path, PACKAGE_DIR BIN_DIR);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   272
489c9b5090e2 Initial load
duke
parents:
diff changeset
   273
    GetSystemDirectory(tmp, sizeof(tmp));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   274
    strcat(library_path, ";");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   275
    strcat(library_path, tmp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   276
489c9b5090e2 Initial load
duke
parents:
diff changeset
   277
    GetWindowsDirectory(tmp, sizeof(tmp));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   278
    strcat(library_path, ";");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   279
    strcat(library_path, tmp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   280
489c9b5090e2 Initial load
duke
parents:
diff changeset
   281
    if (path_str) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   282
        strcat(library_path, ";");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   283
        strcat(library_path, path_str);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   284
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   285
489c9b5090e2 Initial load
duke
parents:
diff changeset
   286
    Arguments::set_library_path(library_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   287
    FREE_C_HEAP_ARRAY(char, library_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   288
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   289
489c9b5090e2 Initial load
duke
parents:
diff changeset
   290
  /* Default extensions directory */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   291
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   292
    char path[MAX_PATH];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   293
    char buf[2 * MAX_PATH + 2 * sizeof(EXT_DIR) + sizeof(PACKAGE_DIR) + 1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   294
    GetWindowsDirectory(path, MAX_PATH);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   295
    sprintf(buf, "%s%s;%s%s%s", Arguments::get_java_home(), EXT_DIR,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   296
        path, PACKAGE_DIR, EXT_DIR);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   297
    Arguments::set_ext_dirs(buf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   298
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   299
  #undef EXT_DIR
489c9b5090e2 Initial load
duke
parents:
diff changeset
   300
  #undef BIN_DIR
489c9b5090e2 Initial load
duke
parents:
diff changeset
   301
  #undef PACKAGE_DIR
489c9b5090e2 Initial load
duke
parents:
diff changeset
   302
489c9b5090e2 Initial load
duke
parents:
diff changeset
   303
  /* Default endorsed standards directory. */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   304
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   305
    #define ENDORSED_DIR "\\lib\\endorsed"
489c9b5090e2 Initial load
duke
parents:
diff changeset
   306
    size_t len = strlen(Arguments::get_java_home()) + sizeof(ENDORSED_DIR);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   307
    char * buf = NEW_C_HEAP_ARRAY(char, len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   308
    sprintf(buf, "%s%s", Arguments::get_java_home(), ENDORSED_DIR);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   309
    Arguments::set_endorsed_dirs(buf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   310
    #undef ENDORSED_DIR
489c9b5090e2 Initial load
duke
parents:
diff changeset
   311
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   312
489c9b5090e2 Initial load
duke
parents:
diff changeset
   313
#ifndef _WIN64
4762
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
   314
  // set our UnhandledExceptionFilter and save any previous one
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
   315
  prev_uef_handler = SetUnhandledExceptionFilter(Handle_FLT_Exception);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   316
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   317
489c9b5090e2 Initial load
duke
parents:
diff changeset
   318
  // Done
489c9b5090e2 Initial load
duke
parents:
diff changeset
   319
  return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   320
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   321
489c9b5090e2 Initial load
duke
parents:
diff changeset
   322
void os::breakpoint() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   323
  DebugBreak();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   324
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   325
489c9b5090e2 Initial load
duke
parents:
diff changeset
   326
// Invoked from the BREAKPOINT Macro
489c9b5090e2 Initial load
duke
parents:
diff changeset
   327
extern "C" void breakpoint() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   328
  os::breakpoint();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   329
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   330
489c9b5090e2 Initial load
duke
parents:
diff changeset
   331
// Returns an estimate of the current stack pointer. Result must be guaranteed
489c9b5090e2 Initial load
duke
parents:
diff changeset
   332
// to point into the calling threads stack, and be no lower than the current
489c9b5090e2 Initial load
duke
parents:
diff changeset
   333
// stack pointer.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   334
489c9b5090e2 Initial load
duke
parents:
diff changeset
   335
address os::current_stack_pointer() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   336
  int dummy;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   337
  address sp = (address)&dummy;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   338
  return sp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   339
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   340
489c9b5090e2 Initial load
duke
parents:
diff changeset
   341
// os::current_stack_base()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   342
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   343
//   Returns the base of the stack, which is the stack's
489c9b5090e2 Initial load
duke
parents:
diff changeset
   344
//   starting address.  This function must be called
489c9b5090e2 Initial load
duke
parents:
diff changeset
   345
//   while running on the stack of the thread being queried.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   346
489c9b5090e2 Initial load
duke
parents:
diff changeset
   347
address os::current_stack_base() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   348
  MEMORY_BASIC_INFORMATION minfo;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   349
  address stack_bottom;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   350
  size_t stack_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   351
489c9b5090e2 Initial load
duke
parents:
diff changeset
   352
  VirtualQuery(&minfo, &minfo, sizeof(minfo));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   353
  stack_bottom =  (address)minfo.AllocationBase;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   354
  stack_size = minfo.RegionSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   355
489c9b5090e2 Initial load
duke
parents:
diff changeset
   356
  // Add up the sizes of all the regions with the same
489c9b5090e2 Initial load
duke
parents:
diff changeset
   357
  // AllocationBase.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   358
  while( 1 )
489c9b5090e2 Initial load
duke
parents:
diff changeset
   359
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   360
    VirtualQuery(stack_bottom+stack_size, &minfo, sizeof(minfo));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   361
    if ( stack_bottom == (address)minfo.AllocationBase )
489c9b5090e2 Initial load
duke
parents:
diff changeset
   362
      stack_size += minfo.RegionSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   363
    else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   364
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   365
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
#ifdef _M_IA64
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
  // IA64 has memory and register stacks
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
  stack_size = stack_size / 2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
  return stack_bottom + stack_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
size_t os::current_stack_size() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
  size_t sz;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
  MEMORY_BASIC_INFORMATION minfo;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
  VirtualQuery(&minfo, &minfo, sizeof(minfo));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
  sz = (size_t)os::current_stack_base() - (size_t)minfo.AllocationBase;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
  return sz;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
2012
041fbc6030dd 6800586: -XX:+PrintGCDateStamps is using mt-unsafe localtime function
ysr
parents: 1664
diff changeset
   382
struct tm* os::localtime_pd(const time_t* clock, struct tm* res) {
041fbc6030dd 6800586: -XX:+PrintGCDateStamps is using mt-unsafe localtime function
ysr
parents: 1664
diff changeset
   383
  const struct tm* time_struct_ptr = localtime(clock);
041fbc6030dd 6800586: -XX:+PrintGCDateStamps is using mt-unsafe localtime function
ysr
parents: 1664
diff changeset
   384
  if (time_struct_ptr != NULL) {
041fbc6030dd 6800586: -XX:+PrintGCDateStamps is using mt-unsafe localtime function
ysr
parents: 1664
diff changeset
   385
    *res = *time_struct_ptr;
041fbc6030dd 6800586: -XX:+PrintGCDateStamps is using mt-unsafe localtime function
ysr
parents: 1664
diff changeset
   386
    return res;
041fbc6030dd 6800586: -XX:+PrintGCDateStamps is using mt-unsafe localtime function
ysr
parents: 1664
diff changeset
   387
  }
041fbc6030dd 6800586: -XX:+PrintGCDateStamps is using mt-unsafe localtime function
ysr
parents: 1664
diff changeset
   388
  return NULL;
041fbc6030dd 6800586: -XX:+PrintGCDateStamps is using mt-unsafe localtime function
ysr
parents: 1664
diff changeset
   389
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
// Thread start routine for all new Java threads
489c9b5090e2 Initial load
duke
parents:
diff changeset
   394
static unsigned __stdcall java_start(Thread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
  // Try to randomize the cache line index of hot stack frames.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
  // This helps when threads of the same stack traces evict each other's
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
  // cache lines. The threads can be either from the same JVM instance, or
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
  // from different JVM instances. The benefit is especially true for
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
  // processors with hyperthreading technology.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
  static int counter = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
  int pid = os::current_process_id();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
  _alloca(((pid ^ counter++) & 7) * 128);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
  OSThread* osthr = thread->osthread();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
  assert(osthr->get_state() == RUNNABLE, "invalid os thread state");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
  if (UseNUMA) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
    int lgrp_id = os::numa_get_group_id();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
    if (lgrp_id != -1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
      thread->set_lgrp_id(lgrp_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
  if (UseVectoredExceptions) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
    // If we are using vectored exception we don't need to set a SEH
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
    thread->run();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
  else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
    // Install a win32 structured exception handler around every thread created
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
    // by VM, so VM can genrate error dump when an exception occurred in non-
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
    // Java thread (e.g. VM thread).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
    __try {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
       thread->run();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
    } __except(topLevelExceptionFilter(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
               (_EXCEPTION_POINTERS*)_exception_info())) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
        // Nothing to do.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
  // One less thread is executing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
  // When the VMThread gets here, the main thread may have already exited
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
  // which frees the CodeHeap containing the Atomic::add code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
  if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
    Atomic::dec_ptr((intptr_t*)&os::win32::_os_thread_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
  return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
static OSThread* create_os_thread(Thread* thread, HANDLE thread_handle, int thread_id) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
  // Allocate the OSThread object
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
  OSThread* osthread = new OSThread(NULL, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  if (osthread == NULL) return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
  // Initialize support for Java interrupts
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
  if (interrupt_event == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
    delete osthread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
  osthread->set_interrupt_event(interrupt_event);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
  // Store info on the Win32 thread into the OSThread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
  osthread->set_thread_handle(thread_handle);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
  osthread->set_thread_id(thread_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
  if (UseNUMA) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
    int lgrp_id = os::numa_get_group_id();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
    if (lgrp_id != -1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
      thread->set_lgrp_id(lgrp_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
  // Initial thread state is INITIALIZED, not SUSPENDED
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
  osthread->set_state(INITIALIZED);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
  return osthread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
bool os::create_attached_thread(JavaThread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  thread->verify_not_published();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
  HANDLE thread_h;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
  if (!DuplicateHandle(main_process, GetCurrentThread(), GetCurrentProcess(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
                       &thread_h, THREAD_ALL_ACCESS, false, 0)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
    fatal("DuplicateHandle failed\n");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
  OSThread* osthread = create_os_thread(thread, thread_h,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
                                        (int)current_thread_id());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
  if (osthread == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
     return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  // Initial thread state is RUNNABLE
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
  osthread->set_state(RUNNABLE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
  thread->set_osthread(osthread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
bool os::create_main_thread(JavaThread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
  thread->verify_not_published();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
  if (_starting_thread == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
    _starting_thread = create_os_thread(thread, main_thread, main_thread_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
     if (_starting_thread == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
        return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
     }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
  // The primordial thread is runnable from the start)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
  _starting_thread->set_state(RUNNABLE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
  thread->set_osthread(_starting_thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
// Allocate and initialize a new OSThread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
bool os::create_thread(Thread* thread, ThreadType thr_type, size_t stack_size) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
  unsigned thread_id;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
  // Allocate the OSThread object
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
  OSThread* osthread = new OSThread(NULL, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
  if (osthread == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  // Initialize support for Java interrupts
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
  HANDLE interrupt_event = CreateEvent(NULL, true, false, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
  if (interrupt_event == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
    delete osthread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
  osthread->set_interrupt_event(interrupt_event);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
  osthread->set_interrupted(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
  thread->set_osthread(osthread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  if (stack_size == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
    switch (thr_type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
    case os::java_thread:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
      // Java threads use ThreadStackSize which default value can be changed with the flag -Xss
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
      if (JavaThread::stack_size_at_create() > 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
        stack_size = JavaThread::stack_size_at_create();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
    case os::compiler_thread:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
      if (CompilerThreadStackSize > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
        stack_size = (size_t)(CompilerThreadStackSize * K);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
      } // else fall through:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
        // use VMThreadStackSize if CompilerThreadStackSize is not defined
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
    case os::vm_thread:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
    case os::pgc_thread:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
    case os::cgc_thread:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
    case os::watcher_thread:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
      if (VMThreadStackSize > 0) stack_size = (size_t)(VMThreadStackSize * K);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
  // Create the Win32 thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
  // Contrary to what MSDN document says, "stack_size" in _beginthreadex()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
  // does not specify stack size. Instead, it specifies the size of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
  // initially committed space. The stack size is determined by
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  // PE header in the executable. If the committed "stack_size" is larger
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
  // than default value in the PE header, the stack is rounded up to the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
  // nearest multiple of 1MB. For example if the launcher has default
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
  // stack size of 320k, specifying any size less than 320k does not
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
  // affect the actual stack size at all, it only affects the initial
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
  // commitment. On the other hand, specifying 'stack_size' larger than
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
  // default value may cause significant increase in memory usage, because
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
  // not only the stack space will be rounded up to MB, but also the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
  // entire space is committed upfront.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
  // Finally Windows XP added a new flag 'STACK_SIZE_PARAM_IS_A_RESERVATION'
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
  // for CreateThread() that can treat 'stack_size' as stack size. However we
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  // are not supposed to call CreateThread() directly according to MSDN
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
  // document because JVM uses C runtime library. The good news is that the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  // flag appears to work with _beginthredex() as well.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
#ifndef STACK_SIZE_PARAM_IS_A_RESERVATION
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
#define STACK_SIZE_PARAM_IS_A_RESERVATION  (0x10000)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
  HANDLE thread_handle =
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
    (HANDLE)_beginthreadex(NULL,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
                           (unsigned)stack_size,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
                           (unsigned (__stdcall *)(void*)) java_start,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
                           thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
                           CREATE_SUSPENDED | STACK_SIZE_PARAM_IS_A_RESERVATION,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
                           &thread_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
  if (thread_handle == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
    // perhaps STACK_SIZE_PARAM_IS_A_RESERVATION is not supported, try again
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
    // without the flag.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
    thread_handle =
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
    (HANDLE)_beginthreadex(NULL,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
                           (unsigned)stack_size,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
                           (unsigned (__stdcall *)(void*)) java_start,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
                           thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
                           CREATE_SUSPENDED,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
                           &thread_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
  if (thread_handle == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
    // Need to clean up stuff we've allocated so far
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
    CloseHandle(osthread->interrupt_event());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
    thread->set_osthread(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
    delete osthread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
  Atomic::inc_ptr((intptr_t*)&os::win32::_os_thread_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  // Store info on the Win32 thread into the OSThread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  osthread->set_thread_handle(thread_handle);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
  osthread->set_thread_id(thread_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
  // Initial thread state is INITIALIZED, not SUSPENDED
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
  osthread->set_state(INITIALIZED);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
  // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
// Free Win32 resources related to the OSThread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
void os::free_thread(OSThread* osthread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  assert(osthread != NULL, "osthread not set");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
  CloseHandle(osthread->thread_handle());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
  CloseHandle(osthread->interrupt_event());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
  delete osthread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
static int    has_performance_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
static jlong first_filetime;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
static jlong initial_performance_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
static jlong performance_frequency;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
jlong as_long(LARGE_INTEGER x) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
  jlong result = 0; // initialization to avoid warning
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
  set_high(&result, x.HighPart);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
  set_low(&result,  x.LowPart);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
jlong os::elapsed_counter() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
  LARGE_INTEGER count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
  if (has_performance_count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
    QueryPerformanceCounter(&count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
    return as_long(count) - initial_performance_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
    FILETIME wt;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
    GetSystemTimeAsFileTime(&wt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
    return (jlong_from(wt.dwHighDateTime, wt.dwLowDateTime) - first_filetime);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
jlong os::elapsed_frequency() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
  if (has_performance_count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
    return performance_frequency;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
   // the FILETIME time is the number of 100-nanosecond intervals since January 1,1601.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
   return 10000000;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
julong os::available_memory() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
  return win32::available_memory();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
julong os::win32::available_memory() {
3577
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
   671
  // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
   672
  // value if total memory is larger than 4GB
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
   673
  MEMORYSTATUSEX ms;
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
   674
  ms.dwLength = sizeof(ms);
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
   675
  GlobalMemoryStatusEx(&ms);
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
   676
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
   677
  return (julong)ms.ullAvailPhys;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
julong os::physical_memory() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
  return win32::physical_memory();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
julong os::allocatable_physical_memory(julong size) {
193
171c404abf72 6629887: 64-bit windows should not restrict default heap size to 1400m
phh
parents: 1
diff changeset
   685
#ifdef _LP64
171c404abf72 6629887: 64-bit windows should not restrict default heap size to 1400m
phh
parents: 1
diff changeset
   686
  return size;
171c404abf72 6629887: 64-bit windows should not restrict default heap size to 1400m
phh
parents: 1
diff changeset
   687
#else
171c404abf72 6629887: 64-bit windows should not restrict default heap size to 1400m
phh
parents: 1
diff changeset
   688
  // Limit to 1400m because of the 2gb address space wall
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
  return MIN2(size, (julong)1400*M);
193
171c404abf72 6629887: 64-bit windows should not restrict default heap size to 1400m
phh
parents: 1
diff changeset
   690
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
// VC6 lacks DWORD_PTR
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
#if _MSC_VER < 1300
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
typedef UINT_PTR DWORD_PTR;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
int os::active_processor_count() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
  DWORD_PTR lpProcessAffinityMask = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
  DWORD_PTR lpSystemAffinityMask = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
  int proc_count = processor_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
  if (proc_count <= sizeof(UINT_PTR) * BitsPerByte &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
      GetProcessAffinityMask(GetCurrentProcess(), &lpProcessAffinityMask, &lpSystemAffinityMask)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
    // Nof active processors is number of bits in process affinity mask
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
    int bitcount = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
    while (lpProcessAffinityMask != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
      lpProcessAffinityMask = lpProcessAffinityMask & (lpProcessAffinityMask-1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
      bitcount++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
    return bitcount;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
    return proc_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
bool os::distribute_processes(uint length, uint* distribution) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
  // Not yet implemented.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
bool os::bind_to_processor(uint processor_id) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
  // Not yet implemented.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
static void initialize_performance_counter() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
  LARGE_INTEGER count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
  if (QueryPerformanceFrequency(&count)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
    has_performance_count = 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
    performance_frequency = as_long(count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
    QueryPerformanceCounter(&count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
    initial_performance_count = as_long(count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
    has_performance_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
    FILETIME wt;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
    GetSystemTimeAsFileTime(&wt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
    first_filetime = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
double os::elapsedTime() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
  return (double) elapsed_counter() / (double) elapsed_frequency();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
// Windows format:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
//   The FILETIME structure is a 64-bit value representing the number of 100-nanosecond intervals since January 1, 1601.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
// Java format:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
//   Java standards require the number of milliseconds since 1/1/1970
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
// Constant offset - calculated using offset()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
static jlong  _offset   = 116444736000000000;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
// Fake time counter for reproducible results when debugging
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
static jlong  fake_time = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
// Just to be safe, recalculate the offset in debug mode
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
static jlong _calculated_offset = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
static int   _has_calculated_offset = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
jlong offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
  if (_has_calculated_offset) return _calculated_offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
  SYSTEMTIME java_origin;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
  java_origin.wYear          = 1970;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
  java_origin.wMonth         = 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
  java_origin.wDayOfWeek     = 0; // ignored
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
  java_origin.wDay           = 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
  java_origin.wHour          = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
  java_origin.wMinute        = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
  java_origin.wSecond        = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
  java_origin.wMilliseconds  = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
  FILETIME jot;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
  if (!SystemTimeToFileTime(&java_origin, &jot)) {
5403
6b0dd9c75dde 6888954: argument formatting for assert() and friends
jcoomes
parents: 5237
diff changeset
   775
    fatal(err_msg("Error = %d\nWindows error", GetLastError()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
  _calculated_offset = jlong_from(jot.dwHighDateTime, jot.dwLowDateTime);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
  _has_calculated_offset = 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
  assert(_calculated_offset == _offset, "Calculated and constant time offsets must be equal");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
  return _calculated_offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
jlong offset() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
  return _offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
jlong windows_to_java_time(FILETIME wt) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
  jlong a = jlong_from(wt.dwHighDateTime, wt.dwLowDateTime);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
  return (a - offset()) / 10000;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
FILETIME java_to_windows_time(jlong l) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
  jlong a = (l * 10000) + offset();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
  FILETIME result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
  result.dwHighDateTime = high(a);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
  result.dwLowDateTime  = low(a);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   801
// For now, we say that Windows does not support vtime.  I have no idea
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   802
// whether it can actually be made to (DLD, 9/13/05).
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   803
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   804
bool os::supports_vtime() { return false; }
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   805
bool os::enable_vtime() { return false; }
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   806
bool os::vtime_enabled() { return false; }
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   807
double os::elapsedVTime() {
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   808
  // better than nothing, but not much
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   809
  return elapsedTime();
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   810
}
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 389
diff changeset
   811
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
jlong os::javaTimeMillis() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
  if (UseFakeTimers) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
    return fake_time++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
  } else {
234
4da9c1bbc810 6667833: Remove CacheTimeMillis
sbohne
parents: 1
diff changeset
   816
    FILETIME wt;
4da9c1bbc810 6667833: Remove CacheTimeMillis
sbohne
parents: 1
diff changeset
   817
    GetSystemTimeAsFileTime(&wt);
4da9c1bbc810 6667833: Remove CacheTimeMillis
sbohne
parents: 1
diff changeset
   818
    return windows_to_java_time(wt);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
#define NANOS_PER_SEC         CONST64(1000000000)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
#define NANOS_PER_MILLISEC    1000000
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
jlong os::javaTimeNanos() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
  if (!has_performance_count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
    return javaTimeMillis() * NANOS_PER_MILLISEC; // the best we can do.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
    LARGE_INTEGER current_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
    QueryPerformanceCounter(&current_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
    double current = as_long(current_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
    double freq = performance_frequency;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
    jlong time = (jlong)((current/freq) * NANOS_PER_SEC);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
    return time;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
void os::javaTimeNanos_info(jvmtiTimerInfo *info_ptr) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
  if (!has_performance_count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
    // javaTimeMillis() doesn't have much percision,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
    // but it is not going to wrap -- so all 64 bits
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
    info_ptr->max_value = ALL_64_BITS;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
    // this is a wall clock timer, so may skip
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
    info_ptr->may_skip_backward = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
    info_ptr->may_skip_forward = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
    jlong freq = performance_frequency;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
    if (freq < NANOS_PER_SEC) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
      // the performance counter is 64 bits and we will
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
      // be multiplying it -- so no wrap in 64 bits
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
      info_ptr->max_value = ALL_64_BITS;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
    } else if (freq > NANOS_PER_SEC) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
      // use the max value the counter can reach to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
      // determine the max value which could be returned
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
      julong max_counter = (julong)ALL_64_BITS;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
      info_ptr->max_value = (jlong)(max_counter / (freq / NANOS_PER_SEC));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
      // the performance counter is 64 bits and we will
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
      // be using it directly -- so no wrap in 64 bits
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
      info_ptr->max_value = ALL_64_BITS;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
    // using a counter, so no skipping
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
    info_ptr->may_skip_backward = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
    info_ptr->may_skip_forward = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
  info_ptr->kind = JVMTI_TIMER_ELAPSED;                // elapsed not CPU time
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
char* os::local_time_string(char *buf, size_t buflen) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
  SYSTEMTIME st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
  GetLocalTime(&st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
  jio_snprintf(buf, buflen, "%d-%02d-%02d %02d:%02d:%02d",
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
               st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
  return buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
bool os::getTimesSecs(double* process_real_time,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
                     double* process_user_time,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
                     double* process_system_time) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
  HANDLE h_process = GetCurrentProcess();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
  FILETIME create_time, exit_time, kernel_time, user_time;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
  BOOL result = GetProcessTimes(h_process,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
                               &create_time,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
                               &exit_time,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
                               &kernel_time,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
                               &user_time);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
  if (result != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
    FILETIME wt;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
    GetSystemTimeAsFileTime(&wt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
    jlong rtc_millis = windows_to_java_time(wt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
    jlong user_millis = windows_to_java_time(user_time);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
    jlong system_millis = windows_to_java_time(kernel_time);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
    *process_real_time = ((double) rtc_millis) / ((double) MILLIUNITS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
    *process_user_time = ((double) user_millis) / ((double) MILLIUNITS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
    *process_system_time = ((double) system_millis) / ((double) MILLIUNITS);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
void os::shutdown() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
  // allow PerfMemory to attempt cleanup of any persistent resources
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
  perfMemory_exit();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
  // flush buffered output, finish log files
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
  ostream_abort();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
  // Check for abort hook
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
  abort_hook_t abort_hook = Arguments::abort_hook();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
  if (abort_hook != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
    abort_hook();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
void os::abort(bool dump_core)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
  os::shutdown();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
  // no core dump on Windows
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
  ::exit(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
// Die immediately, no exit hook, no abort hook, no cleanup.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
void os::die() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
  _exit(-1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
// Directory routines copied from src/win32/native/java/io/dirent_md.c
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
//  * dirent_md.c       1.15 00/02/02
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
// The declarations for DIR and struct dirent are in jvm_win32.h.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
/* Caller must have already run dirname through JVM_NativePath, which removes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
   duplicate slashes and converts all instances of '/' into '\\'. */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
DIR *
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
os::opendir(const char *dirname)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
    assert(dirname != NULL, "just checking");   // hotspot change
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
    DIR *dirp = (DIR *)malloc(sizeof(DIR));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
    DWORD fattr;                                // hotspot change
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
    char alt_dirname[4] = { 0, 0, 0, 0 };
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
    if (dirp == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
        errno = ENOMEM;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
        return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
    /*
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
     * Win32 accepts "\" in its POSIX stat(), but refuses to treat it
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
     * as a directory in FindFirstFile().  We detect this case here and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
     * prepend the current drive name.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
     */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
    if (dirname[1] == '\0' && dirname[0] == '\\') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
        alt_dirname[0] = _getdrive() + 'A' - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
        alt_dirname[1] = ':';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
        alt_dirname[2] = '\\';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
        alt_dirname[3] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
        dirname = alt_dirname;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   962
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
    dirp->path = (char *)malloc(strlen(dirname) + 5);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
    if (dirp->path == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
        free(dirp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
        errno = ENOMEM;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
        return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
    strcpy(dirp->path, dirname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
    fattr = GetFileAttributes(dirp->path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
    if (fattr == 0xffffffff) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
        free(dirp->path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
        free(dirp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
        errno = ENOENT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
        return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
    } else if ((fattr & FILE_ATTRIBUTE_DIRECTORY) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
        free(dirp->path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
        free(dirp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
        errno = ENOTDIR;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
        return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
    /* Append "*.*", or possibly "\\*.*", to path */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
    if (dirp->path[1] == ':'
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
        && (dirp->path[2] == '\0'
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
            || (dirp->path[2] == '\\' && dirp->path[3] == '\0'))) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
        /* No '\\' needed for cases like "Z:" or "Z:\" */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
        strcat(dirp->path, "*.*");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
        strcat(dirp->path, "\\*.*");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
    dirp->handle = FindFirstFile(dirp->path, &dirp->find_data);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
    if (dirp->handle == INVALID_HANDLE_VALUE) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
        if (GetLastError() != ERROR_FILE_NOT_FOUND) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
            free(dirp->path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
            free(dirp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
            errno = EACCES;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
            return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
    return dirp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
/* parameter dbuf unused on Windows */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
struct dirent *
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
os::readdir(DIR *dirp, dirent *dbuf)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
    assert(dirp != NULL, "just checking");      // hotspot change
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
    if (dirp->handle == INVALID_HANDLE_VALUE) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
        return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
    strcpy(dirp->dirent.d_name, dirp->find_data.cFileName);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
    if (!FindNextFile(dirp->handle, &dirp->find_data)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
        if (GetLastError() == ERROR_INVALID_HANDLE) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
            errno = EBADF;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
            return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
        FindClose(dirp->handle);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
        dirp->handle = INVALID_HANDLE_VALUE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
    return &dirp->dirent;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
int
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
os::closedir(DIR *dirp)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
    assert(dirp != NULL, "just checking");      // hotspot change
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
    if (dirp->handle != INVALID_HANDLE_VALUE) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
        if (!FindClose(dirp->handle)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
            errno = EBADF;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
            return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
        dirp->handle = INVALID_HANDLE_VALUE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
    free(dirp->path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
    free(dirp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
    return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
5237
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1047
const char* os::get_temp_directory() {
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1048
  const char *prop = Arguments::get_property("java.io.tmpdir");
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1049
  if (prop != 0) return prop;
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1050
  static char path_buf[MAX_PATH];
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1051
  if (GetTempPath(MAX_PATH, path_buf)>0)
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1052
    return path_buf;
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1053
  else{
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1054
    path_buf[0]='\0';
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1055
    return path_buf;
aab592fd4f44 6938627: Make temporary directory use property java.io.tmpdir when specified
coleenp
parents: 5085
diff changeset
  1056
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
2358
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1059
static bool file_exists(const char* filename) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1060
  if (filename == NULL || strlen(filename) == 0) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1061
    return false;
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1062
  }
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1063
  return GetFileAttributes(filename) != INVALID_FILE_ATTRIBUTES;
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1064
}
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1065
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1066
void os::dll_build_name(char *buffer, size_t buflen,
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1067
                        const char* pname, const char* fname) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1068
  const size_t pnamelen = pname ? strlen(pname) : 0;
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1069
  const char c = (pnamelen > 0) ? pname[pnamelen-1] : 0;
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1070
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1071
  // Quietly truncates on buffer overflow. Should be an error.
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1072
  if (pnamelen + strlen(fname) + 10 > buflen) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1073
    *buffer = '\0';
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1074
    return;
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1075
  }
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1076
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1077
  if (pnamelen == 0) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1078
    jio_snprintf(buffer, buflen, "%s.dll", fname);
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1079
  } else if (c == ':' || c == '\\') {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1080
    jio_snprintf(buffer, buflen, "%s%s.dll", pname, fname);
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1081
  } else if (strchr(pname, *os::path_separator()) != NULL) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1082
    int n;
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1083
    char** pelements = split_path(pname, &n);
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1084
    for (int i = 0 ; i < n ; i++) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1085
      char* path = pelements[i];
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1086
      // Really shouldn't be NULL, but check can't hurt
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1087
      size_t plen = (path == NULL) ? 0 : strlen(path);
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1088
      if (plen == 0) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1089
        continue; // skip the empty path values
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1090
      }
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1091
      const char lastchar = path[plen - 1];
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1092
      if (lastchar == ':' || lastchar == '\\') {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1093
        jio_snprintf(buffer, buflen, "%s%s.dll", path, fname);
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1094
      } else {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1095
        jio_snprintf(buffer, buflen, "%s\\%s.dll", path, fname);
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1096
      }
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1097
      if (file_exists(buffer)) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1098
        break;
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1099
      }
950
6112b627bb36 6721093: -XX:AppendRatio=N not supported
kamg
parents: 823
diff changeset
  1100
    }
2358
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1101
    // release the storage
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1102
    for (int i = 0 ; i < n ; i++) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1103
      if (pelements[i] != NULL) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1104
        FREE_C_HEAP_ARRAY(char, pelements[i]);
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1105
      }
950
6112b627bb36 6721093: -XX:AppendRatio=N not supported
kamg
parents: 823
diff changeset
  1106
    }
2358
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1107
    if (pelements != NULL) {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1108
      FREE_C_HEAP_ARRAY(char*, pelements);
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1109
    }
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1110
  } else {
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1111
    jio_snprintf(buffer, buflen, "%s\\%s.dll", pname, fname);
7c8346929fc6 6819213: revive sun.boot.library.path
phh
parents: 2268
diff changeset
  1112
  }
950
6112b627bb36 6721093: -XX:AppendRatio=N not supported
kamg
parents: 823
diff changeset
  1113
}
6112b627bb36 6721093: -XX:AppendRatio=N not supported
kamg
parents: 823
diff changeset
  1114
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
// Needs to be in os specific directory because windows requires another
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
// header file <direct.h>
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
const char* os::get_current_directory(char *buf, int buflen) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
  return _getcwd(buf, buflen);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
//-----------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
// Helper functions for fatal error handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
// The following library functions are resolved dynamically at runtime:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
// PSAPI functions, for Windows NT, 2000, XP
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
// psapi.h doesn't come with Visual Studio 6; it can be downloaded as Platform
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
// SDK from Microsoft.  Here are the definitions copied from psapi.h
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
typedef struct _MODULEINFO {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
    LPVOID lpBaseOfDll;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
    DWORD SizeOfImage;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
    LPVOID EntryPoint;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
} MODULEINFO, *LPMODULEINFO;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
static BOOL  (WINAPI *_EnumProcessModules)  ( HANDLE, HMODULE *, DWORD, LPDWORD );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
static DWORD (WINAPI *_GetModuleFileNameEx) ( HANDLE, HMODULE, LPTSTR, DWORD );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
static BOOL  (WINAPI *_GetModuleInformation)( HANDLE, HMODULE, LPMODULEINFO, DWORD );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
// ToolHelp Functions, for Windows 95, 98 and ME
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
static HANDLE(WINAPI *_CreateToolhelp32Snapshot)(DWORD,DWORD) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
static BOOL  (WINAPI *_Module32First)           (HANDLE,LPMODULEENTRY32) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
static BOOL  (WINAPI *_Module32Next)            (HANDLE,LPMODULEENTRY32) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
bool _has_psapi;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
bool _psapi_init = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
bool _has_toolhelp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
static bool _init_psapi() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
  HINSTANCE psapi = LoadLibrary( "PSAPI.DLL" ) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
  if( psapi == NULL ) return false ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
  _EnumProcessModules = CAST_TO_FN_PTR(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
      BOOL(WINAPI *)(HANDLE, HMODULE *, DWORD, LPDWORD),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
      GetProcAddress(psapi, "EnumProcessModules")) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
  _GetModuleFileNameEx = CAST_TO_FN_PTR(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
      DWORD (WINAPI *)(HANDLE, HMODULE, LPTSTR, DWORD),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
      GetProcAddress(psapi, "GetModuleFileNameExA"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
  _GetModuleInformation = CAST_TO_FN_PTR(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
      BOOL (WINAPI *)(HANDLE, HMODULE, LPMODULEINFO, DWORD),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
      GetProcAddress(psapi, "GetModuleInformation"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
  _has_psapi = (_EnumProcessModules && _GetModuleFileNameEx && _GetModuleInformation);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
  _psapi_init = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1166
  return _has_psapi;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1167
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
static bool _init_toolhelp() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
  HINSTANCE kernel32 = LoadLibrary("Kernel32.DLL") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
  if (kernel32 == NULL) return false ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
  _CreateToolhelp32Snapshot = CAST_TO_FN_PTR(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
      HANDLE(WINAPI *)(DWORD,DWORD),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
      GetProcAddress(kernel32, "CreateToolhelp32Snapshot"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
  _Module32First = CAST_TO_FN_PTR(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
      BOOL(WINAPI *)(HANDLE,LPMODULEENTRY32),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
      GetProcAddress(kernel32, "Module32First" ));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  _Module32Next = CAST_TO_FN_PTR(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
      BOOL(WINAPI *)(HANDLE,LPMODULEENTRY32),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
      GetProcAddress(kernel32, "Module32Next" ));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
  _has_toolhelp = (_CreateToolhelp32Snapshot && _Module32First && _Module32Next);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
  return _has_toolhelp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
#ifdef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
// Helper routine which returns true if address in
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
// within the NTDLL address space.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
static bool _addr_in_ntdll( address addr )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
  HMODULE hmod;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
  MODULEINFO minfo;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
  hmod = GetModuleHandle("NTDLL.DLL");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
  if ( hmod == NULL ) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
  if ( !_GetModuleInformation( GetCurrentProcess(), hmod,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
                               &minfo, sizeof(MODULEINFO)) )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
  if ( (addr >= minfo.lpBaseOfDll) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
       (addr < (address)((uintptr_t)minfo.lpBaseOfDll + (uintptr_t)minfo.SizeOfImage)))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1205
  else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
// Enumerate all modules for a given process ID
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
// Notice that Windows 95/98/Me and Windows NT/2000/XP have
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
// different API for doing this. We use PSAPI.DLL on NT based
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
// Windows and ToolHelp on 95/98/Me.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
// Callback function that is called by enumerate_modules() on
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
// every DLL module.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
// Input parameters:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
//    int       pid,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
//    char*     module_file_name,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
//    address   module_base_addr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
//    unsigned  module_size,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
//    void*     param
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
typedef int (*EnumModulesCallbackFunc)(int, char *, address, unsigned, void *);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
// enumerate_modules for Windows NT, using PSAPI
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
static int _enumerate_modules_winnt( int pid, EnumModulesCallbackFunc func, void * param)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
  HANDLE   hProcess ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
# define MAX_NUM_MODULES 128
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
  HMODULE     modules[MAX_NUM_MODULES];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
  static char filename[ MAX_PATH ];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
  int         result = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
  if (!_has_psapi && (_psapi_init || !_init_psapi())) return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
  hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
                         FALSE, pid ) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
  if (hProcess == NULL) return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
  DWORD size_needed;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  if (!_EnumProcessModules(hProcess, modules,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
                           sizeof(modules), &size_needed)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
      CloseHandle( hProcess );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
      return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
  // number of modules that are currently loaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
  int num_modules = size_needed / sizeof(HMODULE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
  for (int i = 0; i < MIN2(num_modules, MAX_NUM_MODULES); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
    // Get Full pathname:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
    if(!_GetModuleFileNameEx(hProcess, modules[i],
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
                             filename, sizeof(filename))) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
        filename[0] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
    MODULEINFO modinfo;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
    if (!_GetModuleInformation(hProcess, modules[i],
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
                               &modinfo, sizeof(modinfo))) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
        modinfo.lpBaseOfDll = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
        modinfo.SizeOfImage = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
    // Invoke callback function
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
    result = func(pid, filename, (address)modinfo.lpBaseOfDll,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
                  modinfo.SizeOfImage, param);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
    if (result) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
  CloseHandle( hProcess ) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
// enumerate_modules for Windows 95/98/ME, using TOOLHELP
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
static int _enumerate_modules_windows( int pid, EnumModulesCallbackFunc func, void *param)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
  HANDLE                hSnapShot ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
  static MODULEENTRY32  modentry ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
  int                   result = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
  if (!_has_toolhelp) return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
  // Get a handle to a Toolhelp snapshot of the system
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
  hSnapShot = _CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid ) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
  if( hSnapShot == INVALID_HANDLE_VALUE ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
      return FALSE ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
  // iterate through all modules
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
  modentry.dwSize = sizeof(MODULEENTRY32) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
  bool not_done = _Module32First( hSnapShot, &modentry ) != 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
  while( not_done ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
    // invoke the callback
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
    result=func(pid, modentry.szExePath, (address)modentry.modBaseAddr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
                modentry.modBaseSize, param);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1301
    if (result) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
    modentry.dwSize = sizeof(MODULEENTRY32) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
    not_done = _Module32Next( hSnapShot, &modentry ) != 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1307
  CloseHandle(hSnapShot);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
int enumerate_modules( int pid, EnumModulesCallbackFunc func, void * param )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1312
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1313
  // Get current process ID if caller doesn't provide it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
  if (!pid) pid = os::current_process_id();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1316
  if (os::win32::is_nt()) return _enumerate_modules_winnt  (pid, func, param);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
  else                    return _enumerate_modules_windows(pid, func, param);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1320
struct _modinfo {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1321
   address addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1322
   char*   full_path;   // point to a char buffer
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1323
   int     buflen;      // size of the buffer
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
   address base_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
static int _locate_module_by_addr(int pid, char * mod_fname, address base_addr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
                                  unsigned size, void * param) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
   struct _modinfo *pmod = (struct _modinfo *)param;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
   if (!pmod) return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
   if (base_addr     <= pmod->addr &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
       base_addr+size > pmod->addr) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
     // if a buffer is provided, copy path name to the buffer
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
     if (pmod->full_path) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
       jio_snprintf(pmod->full_path, pmod->buflen, "%s", mod_fname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
     }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
     pmod->base_addr = base_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
     return 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
   }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
   return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
bool os::dll_address_to_library_name(address addr, char* buf,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
                                     int buflen, int* offset) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
// NOTE: the reason we don't use SymGetModuleInfo() is it doesn't always
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
//       return the full path to the DLL file, sometimes it returns path
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
//       to the corresponding PDB file (debug info); sometimes it only
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
//       returns partial path, which makes life painful.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
   struct _modinfo mi;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
   mi.addr      = addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
   mi.full_path = buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
   mi.buflen    = buflen;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
   int pid = os::current_process_id();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
   if (enumerate_modules(pid, _locate_module_by_addr, (void *)&mi)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
      // buf already contains path name
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
      if (offset) *offset = addr - mi.base_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
   } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
      if (buf) buf[0] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
      if (offset) *offset = -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
   }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
bool os::dll_address_to_function_name(address addr, char *buf,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
                                      int buflen, int *offset) {
7447
32c42d627f41 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents: 7397
diff changeset
  1369
  if (Decoder::decode(addr, buf, buflen, offset) == Decoder::no_error) {
32c42d627f41 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents: 7397
diff changeset
  1370
    return true;
32c42d627f41 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents: 7397
diff changeset
  1371
  }
32c42d627f41 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents: 7397
diff changeset
  1372
  if (offset != NULL)  *offset  = -1;
32c42d627f41 7003748: Decode C stack frames when symbols are presented (PhoneHome project)
zgu
parents: 7397
diff changeset
  1373
  if (buf != NULL) buf[0] = '\0';
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1374
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1376
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1377
// save the start and end address of jvm.dll into param[0] and param[1]
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1378
static int _locate_jvm_dll(int pid, char* mod_fname, address base_addr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1379
                    unsigned size, void * param) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1380
   if (!param) return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
   if (base_addr     <= (address)_locate_jvm_dll &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
       base_addr+size > (address)_locate_jvm_dll) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
         ((address*)param)[0] = base_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
         ((address*)param)[1] = base_addr + size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
         return 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
   }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
   return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
address vm_lib_location[2];    // start and end address of jvm.dll
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1393
// check if addr is inside jvm.dll
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1394
bool os::address_is_in_vm(address addr) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1395
  if (!vm_lib_location[0] || !vm_lib_location[1]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
    int pid = os::current_process_id();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1397
    if (!enumerate_modules(pid, _locate_jvm_dll, (void *)vm_lib_location)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1398
      assert(false, "Can't find jvm module.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1399
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1400
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
  return (vm_lib_location[0] <= addr) && (addr < vm_lib_location[1]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1404
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1406
// print module info; param is outputStream*
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
static int _print_module(int pid, char* fname, address base,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
                         unsigned size, void* param) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
   if (!param) return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
   outputStream* st = (outputStream*)param;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1412
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
   address end_addr = base + size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
   st->print(PTR_FORMAT " - " PTR_FORMAT " \t%s\n", base, end_addr, fname);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
   return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
// Loads .dll/.so and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
// in case of error it checks if .dll/.so was built for the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
// same architecture as Hotspot is running on
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
void * os::dll_load(const char *name, char *ebuf, int ebuflen)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
  void * result = LoadLibrary(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
  if (result != NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
    return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
  long errcode = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1430
  if (errcode == ERROR_MOD_NOT_FOUND) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1431
    strncpy(ebuf, "Can't find dependent libraries", ebuflen-1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1432
    ebuf[ebuflen-1]='\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1433
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1434
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1435
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
  // Parsing dll below
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1437
  // If we can read dll-info and find that dll was built
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
  // for an architecture other than Hotspot is running in
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
  // - then print to buffer "DLL was built for a different architecture"
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
  // else call getLastErrorString to obtain system error message
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
  // Read system error message into ebuf
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
  // It may or may not be overwritten below (in the for loop and just above)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
  getLastErrorString(ebuf, (size_t) ebuflen);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
  ebuf[ebuflen-1]='\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1446
  int file_descriptor=::open(name, O_RDONLY | O_BINARY, 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
  if (file_descriptor<0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1450
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1451
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1452
  uint32_t signature_offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1453
  uint16_t lib_arch=0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1454
  bool failed_to_get_lib_arch=
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1455
  (
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
    //Go to position 3c in the dll
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1457
    (os::seek_to_file_offset(file_descriptor,IMAGE_FILE_PTR_TO_SIGNATURE)<0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
    ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
    // Read loacation of signature
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1460
    (sizeof(signature_offset)!=
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1461
      (os::read(file_descriptor, (void*)&signature_offset,sizeof(signature_offset))))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1462
    ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
    //Go to COFF File Header in dll
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1464
    //that is located after"signature" (4 bytes long)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
    (os::seek_to_file_offset(file_descriptor,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
      signature_offset+IMAGE_FILE_SIGNATURE_LENGTH)<0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1467
    ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1468
    //Read field that contains code of architecture
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
    // that dll was build for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
    (sizeof(lib_arch)!=
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1471
      (os::read(file_descriptor, (void*)&lib_arch,sizeof(lib_arch))))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1472
  );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1474
  ::close(file_descriptor);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
  if (failed_to_get_lib_arch)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1476
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
    // file i/o error - report getLastErrorString(...) msg
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1479
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1480
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1481
  typedef struct
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1482
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1483
    uint16_t arch_code;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1484
    char* arch_name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1485
  } arch_t;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1486
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
  static const arch_t arch_array[]={
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1488
    {IMAGE_FILE_MACHINE_I386,      (char*)"IA 32"},
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1489
    {IMAGE_FILE_MACHINE_AMD64,     (char*)"AMD 64"},
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1490
    {IMAGE_FILE_MACHINE_IA64,      (char*)"IA 64"}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1491
  };
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1492
  #if   (defined _M_IA64)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1493
    static const uint16_t running_arch=IMAGE_FILE_MACHINE_IA64;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1494
  #elif (defined _M_AMD64)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1495
    static const uint16_t running_arch=IMAGE_FILE_MACHINE_AMD64;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1496
  #elif (defined _M_IX86)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1497
    static const uint16_t running_arch=IMAGE_FILE_MACHINE_I386;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1498
  #else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
    #error Method os::dll_load requires that one of following \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1500
           is defined :_M_IA64,_M_AMD64 or _M_IX86
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1501
  #endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1502
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1503
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1504
  // Obtain a string for printf operation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1505
  // lib_arch_str shall contain string what platform this .dll was built for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1506
  // running_arch_str shall string contain what platform Hotspot was built for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1507
  char *running_arch_str=NULL,*lib_arch_str=NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1508
  for (unsigned int i=0;i<ARRAY_SIZE(arch_array);i++)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1509
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1510
    if (lib_arch==arch_array[i].arch_code)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1511
      lib_arch_str=arch_array[i].arch_name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
    if (running_arch==arch_array[i].arch_code)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1513
      running_arch_str=arch_array[i].arch_name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1514
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1515
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1516
  assert(running_arch_str,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1517
    "Didn't find runing architecture code in arch_array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1518
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
  // If the architure is right
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1520
  // but some other error took place - report getLastErrorString(...) msg
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1521
  if (lib_arch == running_arch)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1522
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1523
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1524
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1525
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1526
  if (lib_arch_str!=NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1527
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1528
    ::_snprintf(ebuf, ebuflen-1,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1529
      "Can't load %s-bit .dll on a %s-bit platform",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1530
      lib_arch_str,running_arch_str);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1531
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1532
  else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1534
    // don't know what architecture this dll was build for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1535
    ::_snprintf(ebuf, ebuflen-1,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
      "Can't load this .dll (machine code=0x%x) on a %s-bit platform",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
      lib_arch,running_arch_str);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1539
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1540
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1541
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1542
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1543
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1544
void os::print_dll_info(outputStream *st) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1545
   int pid = os::current_process_id();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1546
   st->print_cr("Dynamic libraries:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1547
   enumerate_modules(pid, _print_module, (void *)st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1548
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1549
981
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1550
// function pointer to Windows API "GetNativeSystemInfo".
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1551
typedef void (WINAPI *GetNativeSystemInfo_func_type)(LPSYSTEM_INFO);
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1552
static GetNativeSystemInfo_func_type _GetNativeSystemInfo;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1553
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1554
void os::print_os_info(outputStream* st) {
981
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1555
  st->print("OS:");
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1556
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1557
  OSVERSIONINFOEX osvi;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1558
  ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1559
  osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1560
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1561
  if (!GetVersionEx((OSVERSIONINFO *)&osvi)) {
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1562
    st->print_cr("N/A");
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1563
    return;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1564
  }
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1565
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1566
  int os_vers = osvi.dwMajorVersion * 1000 + osvi.dwMinorVersion;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1567
  if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT) {
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1568
    switch (os_vers) {
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1569
    case 3051: st->print(" Windows NT 3.51"); break;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1570
    case 4000: st->print(" Windows NT 4.0"); break;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1571
    case 5000: st->print(" Windows 2000"); break;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1572
    case 5001: st->print(" Windows XP"); break;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1573
    case 5002:
3809
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1574
    case 6000:
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1575
    case 6001: {
981
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1576
      // Retrieve SYSTEM_INFO from GetNativeSystemInfo call so that we could
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1577
      // find out whether we are running on 64 bit processor or not.
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1578
      SYSTEM_INFO si;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1579
      ZeroMemory(&si, sizeof(SYSTEM_INFO));
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1580
      // Check to see if _GetNativeSystemInfo has been initialized.
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1581
      if (_GetNativeSystemInfo == NULL) {
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1582
        HMODULE hKernel32 = GetModuleHandle(TEXT("kernel32.dll"));
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1583
        _GetNativeSystemInfo =
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1584
            CAST_TO_FN_PTR(GetNativeSystemInfo_func_type,
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1585
                           GetProcAddress(hKernel32,
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1586
                                          "GetNativeSystemInfo"));
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1587
        if (_GetNativeSystemInfo == NULL)
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1588
          GetSystemInfo(&si);
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1589
      } else {
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1590
        _GetNativeSystemInfo(&si);
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1591
      }
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1592
      if (os_vers == 5002) {
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1593
        if (osvi.wProductType == VER_NT_WORKSTATION &&
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1594
            si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1595
          st->print(" Windows XP x64 Edition");
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1596
        else
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1597
            st->print(" Windows Server 2003 family");
3809
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1598
      } else if (os_vers == 6000) {
981
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1599
        if (osvi.wProductType == VER_NT_WORKSTATION)
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1600
            st->print(" Windows Vista");
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1601
        else
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1602
            st->print(" Windows Server 2008");
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1603
        if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1604
            st->print(" , 64 bit");
3809
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1605
      } else if (os_vers == 6001) {
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1606
        if (osvi.wProductType == VER_NT_WORKSTATION) {
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1607
            st->print(" Windows 7");
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1608
        } else {
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1609
            // Unrecognized windows, print out its major and minor versions
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1610
            st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion);
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1611
        }
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1612
        if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1613
            st->print(" , 64 bit");
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1614
      } else { // future os
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1615
        // Unrecognized windows, print out its major and minor versions
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1616
        st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion);
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1617
        if (si.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
a68ba546e735 6821003: Update hotspot windows os_win32 for windows 7
asaha
parents: 3577
diff changeset
  1618
            st->print(" , 64 bit");
981
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1619
      }
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1620
      break;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1621
    }
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1622
    default: // future windows, print out its major and minor versions
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1623
      st->print(" Windows NT %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion);
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1624
    }
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1625
  } else {
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1626
    switch (os_vers) {
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1627
    case 4000: st->print(" Windows 95"); break;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1628
    case 4010: st->print(" Windows 98"); break;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1629
    case 4090: st->print(" Windows Me"); break;
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1630
    default: // future windows, print out its major and minor versions
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1631
      st->print(" Windows %d.%d", osvi.dwMajorVersion, osvi.dwMinorVersion);
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1632
    }
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1633
  }
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1634
  st->print(" Build %d", osvi.dwBuildNumber);
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1635
  st->print(" %s", osvi.szCSDVersion);           // service pack
29e21b1b7602 6719981: Update Hotspot Windows os_win32 for windows XP 64 bit and windows 2008
xlu
parents: 950
diff changeset
  1636
  st->cr();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1637
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1638
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1639
void os::print_memory_info(outputStream* st) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1640
  st->print("Memory:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1641
  st->print(" %dk page", os::vm_page_size()>>10);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1642
3577
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  1643
  // Use GlobalMemoryStatusEx() because GlobalMemoryStatus() may return incorrect
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  1644
  // value if total memory is larger than 4GB
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  1645
  MEMORYSTATUSEX ms;
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  1646
  ms.dwLength = sizeof(ms);
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  1647
  GlobalMemoryStatusEx(&ms);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1648
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1649
  st->print(", physical %uk", os::physical_memory() >> 10);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1650
  st->print("(%uk free)", os::available_memory() >> 10);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1651
3577
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  1652
  st->print(", swap %uk", ms.ullTotalPageFile >> 10);
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  1653
  st->print("(%uk free)", ms.ullAvailPageFile >> 10);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1654
  st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1655
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1656
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1657
void os::print_siginfo(outputStream *st, void *siginfo) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1658
  EXCEPTION_RECORD* er = (EXCEPTION_RECORD*)siginfo;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1659
  st->print("siginfo:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1660
  st->print(" ExceptionCode=0x%x", er->ExceptionCode);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1661
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1662
  if (er->ExceptionCode == EXCEPTION_ACCESS_VIOLATION &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1663
      er->NumberParameters >= 2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1664
      switch (er->ExceptionInformation[0]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1665
      case 0: st->print(", reading address"); break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1666
      case 1: st->print(", writing address"); break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1667
      default: st->print(", ExceptionInformation=" INTPTR_FORMAT,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1668
                            er->ExceptionInformation[0]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1669
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1670
      st->print(" " INTPTR_FORMAT, er->ExceptionInformation[1]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1671
  } else if (er->ExceptionCode == EXCEPTION_IN_PAGE_ERROR &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1672
             er->NumberParameters >= 2 && UseSharedSpaces) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1673
    FileMapInfo* mapinfo = FileMapInfo::current_info();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1674
    if (mapinfo->is_in_shared_space((void*)er->ExceptionInformation[1])) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1675
      st->print("\n\nError accessing class data sharing archive."       \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1676
                " Mapped file inaccessible during execution, "          \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1677
                " possible disk/network problem.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1678
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1679
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1680
    int num = er->NumberParameters;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1681
    if (num > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1682
      st->print(", ExceptionInformation=");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1683
      for (int i = 0; i < num; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1684
        st->print(INTPTR_FORMAT " ", er->ExceptionInformation[i]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1685
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1686
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1687
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1688
  st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1689
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1690
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1691
void os::print_signal_handlers(outputStream* st, char* buf, size_t buflen) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1692
  // do nothing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1693
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1694
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1695
static char saved_jvm_path[MAX_PATH] = {0};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1696
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1697
// Find the full path to the current module, jvm.dll or jvm_g.dll
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1698
void os::jvm_path(char *buf, jint buflen) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1699
  // Error checking.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1700
  if (buflen < MAX_PATH) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1701
    assert(false, "must use a large-enough buffer");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1702
    buf[0] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1703
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1704
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1705
  // Lazy resolve the path to current module.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1706
  if (saved_jvm_path[0] != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1707
    strcpy(buf, saved_jvm_path);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1708
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1709
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1710
7410
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1711
  buf[0] = '\0';
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1712
  if (strcmp(Arguments::sun_java_launcher(), "gamma") == 0) {
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1713
     // Support for the gamma launcher. Check for an
7452
b3fa838286de 7006354: Updates to Visual Studio project creation and development launcher
sla
parents: 7448
diff changeset
  1714
     // JAVA_HOME environment variable
7410
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1715
     // and fix up the path so it looks like
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1716
     // libjvm.so is installed there (append a fake suffix
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1717
     // hotspot/libjvm.so).
7452
b3fa838286de 7006354: Updates to Visual Studio project creation and development launcher
sla
parents: 7448
diff changeset
  1718
     char* java_home_var = ::getenv("JAVA_HOME");
7410
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1719
     if (java_home_var != NULL && java_home_var[0] != 0) {
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1720
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1721
        strncpy(buf, java_home_var, buflen);
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1722
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1723
        // determine if this is a legacy image or modules image
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1724
        // modules image doesn't have "jre" subdirectory
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1725
        size_t len = strlen(buf);
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1726
        char* jrebin_p = buf + len;
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1727
        jio_snprintf(jrebin_p, buflen-len, "\\jre\\bin\\");
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1728
        if (0 != _access(buf, 0)) {
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1729
          jio_snprintf(jrebin_p, buflen-len, "\\bin\\");
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1730
        }
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1731
        len = strlen(buf);
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1732
        jio_snprintf(buf + len, buflen-len, "hotspot\\jvm.dll");
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1733
     }
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1734
  }
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1735
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1736
  if(buf[0] == '\0') {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1737
  GetModuleFileName(vm_lib_handle, buf, buflen);
7410
f5b282e7a7a6 6981484: Update development launcher
sla
parents: 7405
diff changeset
  1738
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1739
  strcpy(saved_jvm_path, buf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1740
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1741
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1742
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1743
void os::print_jni_name_prefix_on(outputStream* st, int args_size) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1744
#ifndef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1745
  st->print("_");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1746
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1747
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1748
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1749
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1750
void os::print_jni_name_suffix_on(outputStream* st, int args_size) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1751
#ifndef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1752
  st->print("@%d", args_size  * sizeof(int));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1753
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1754
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1755
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1756
// This method is a copy of JDK's sysGetLastErrorString
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1757
// from src/windows/hpi/src/system_md.c
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1758
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1759
size_t os::lasterror(char *buf, size_t len) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1760
  long errval;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1761
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1762
  if ((errval = GetLastError()) != 0) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1763
      /* DOS error */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1764
    int n = (int)FormatMessage(
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1765
          FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1766
          NULL,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1767
          errval,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1768
          0,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1769
          buf,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1770
          (DWORD)len,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1771
          NULL);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1772
    if (n > 3) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1773
      /* Drop final '.', CR, LF */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1774
      if (buf[n - 1] == '\n') n--;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1775
      if (buf[n - 1] == '\r') n--;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1776
      if (buf[n - 1] == '.') n--;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1777
      buf[n] = '\0';
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1778
    }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1779
    return n;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1780
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1781
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1782
  if (errno != 0) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1783
    /* C runtime error that has no corresponding DOS error code */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1784
    const char *s = strerror(errno);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1785
    size_t n = strlen(s);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1786
    if (n >= len) n = len - 1;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1787
    strncpy(buf, s, n);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1788
    buf[n] = '\0';
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1789
    return n;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1790
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1791
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1792
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  1793
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1794
// sun.misc.Signal
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1795
// NOTE that this is a workaround for an apparent kernel bug where if
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1796
// a signal handler for SIGBREAK is installed then that signal handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1797
// takes priority over the console control handler for CTRL_CLOSE_EVENT.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1798
// See bug 4416763.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1799
static void (*sigbreakHandler)(int) = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1800
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1801
static void UserHandler(int sig, void *siginfo, void *context) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1802
  os::signal_notify(sig);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1803
  // We need to reinstate the signal handler each time...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1804
  os::signal(sig, (void*)UserHandler);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1805
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1806
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1807
void* os::user_handler() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1808
  return (void*) UserHandler;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1809
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1810
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1811
void* os::signal(int signal_number, void* handler) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1812
  if ((signal_number == SIGBREAK) && (!ReduceSignalUsage)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1813
    void (*oldHandler)(int) = sigbreakHandler;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1814
    sigbreakHandler = (void (*)(int)) handler;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1815
    return (void*) oldHandler;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1816
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1817
    return (void*)::signal(signal_number, (void (*)(int))handler);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1818
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1819
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1820
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1821
void os::signal_raise(int signal_number) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1822
  raise(signal_number);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1823
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1824
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1825
// The Win32 C runtime library maps all console control events other than ^C
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1826
// into SIGBREAK, which makes it impossible to distinguish ^BREAK from close,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1827
// logoff, and shutdown events.  We therefore install our own console handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1828
// that raises SIGTERM for the latter cases.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1829
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1830
static BOOL WINAPI consoleHandler(DWORD event) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1831
  switch(event) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1832
    case CTRL_C_EVENT:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1833
      if (is_error_reported()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1834
        // Ctrl-C is pressed during error reporting, likely because the error
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1835
        // handler fails to abort. Let VM die immediately.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1836
        os::die();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1837
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1838
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1839
      os::signal_raise(SIGINT);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1840
      return TRUE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1841
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1842
    case CTRL_BREAK_EVENT:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1843
      if (sigbreakHandler != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1844
        (*sigbreakHandler)(SIGBREAK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1845
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1846
      return TRUE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1847
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1848
    case CTRL_CLOSE_EVENT:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1849
    case CTRL_LOGOFF_EVENT:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1850
    case CTRL_SHUTDOWN_EVENT:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1851
      os::signal_raise(SIGTERM);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1852
      return TRUE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1853
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1854
    default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1855
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1856
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1857
  return FALSE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1858
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1859
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1860
/*
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1861
 * The following code is moved from os.cpp for making this
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1862
 * code platform specific, which it is by its very nature.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1863
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1864
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1865
// Return maximum OS signal used + 1 for internal use only
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1866
// Used as exit signal for signal_thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1867
int os::sigexitnum_pd(){
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1868
  return NSIG;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1869
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1870
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1871
// a counter for each possible signal value, including signal_thread exit signal
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1872
static volatile jint pending_signals[NSIG+1] = { 0 };
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1873
static HANDLE sig_sem;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1874
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1875
void os::signal_init_pd() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1876
  // Initialize signal structures
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1877
  memset((void*)pending_signals, 0, sizeof(pending_signals));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1878
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1879
  sig_sem = ::CreateSemaphore(NULL, 0, NSIG+1, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1880
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1881
  // Programs embedding the VM do not want it to attempt to receive
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1882
  // events like CTRL_LOGOFF_EVENT, which are used to implement the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1883
  // shutdown hooks mechanism introduced in 1.3.  For example, when
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1884
  // the VM is run as part of a Windows NT service (i.e., a servlet
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1885
  // engine in a web server), the correct behavior is for any console
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1886
  // control handler to return FALSE, not TRUE, because the OS's
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1887
  // "final" handler for such events allows the process to continue if
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1888
  // it is a service (while terminating it if it is not a service).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1889
  // To make this behavior uniform and the mechanism simpler, we
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1890
  // completely disable the VM's usage of these console events if -Xrs
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1891
  // (=ReduceSignalUsage) is specified.  This means, for example, that
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1892
  // the CTRL-BREAK thread dump mechanism is also disabled in this
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1893
  // case.  See bugs 4323062, 4345157, and related bugs.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1894
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1895
  if (!ReduceSignalUsage) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1896
    // Add a CTRL-C handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1897
    SetConsoleCtrlHandler(consoleHandler, TRUE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1898
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1899
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1900
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1901
void os::signal_notify(int signal_number) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1902
  BOOL ret;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1903
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1904
  Atomic::inc(&pending_signals[signal_number]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1905
  ret = ::ReleaseSemaphore(sig_sem, 1, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1906
  assert(ret != 0, "ReleaseSemaphore() failed");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1907
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1908
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1909
static int check_pending_signals(bool wait_for_signal) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1910
  DWORD ret;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1911
  while (true) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1912
    for (int i = 0; i < NSIG + 1; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1913
      jint n = pending_signals[i];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1914
      if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1915
        return i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1916
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1917
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1918
    if (!wait_for_signal) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1919
      return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1920
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1921
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1922
    JavaThread *thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1923
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1924
    ThreadBlockInVM tbivm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1925
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1926
    bool threadIsSuspended;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1927
    do {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1928
      thread->set_suspend_equivalent();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1929
      // cleared by handle_special_suspend_equivalent_condition() or java_suspend_self()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1930
      ret = ::WaitForSingleObject(sig_sem, INFINITE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1931
      assert(ret == WAIT_OBJECT_0, "WaitForSingleObject() failed");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1932
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1933
      // were we externally suspended while we were waiting?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1934
      threadIsSuspended = thread->handle_special_suspend_equivalent_condition();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1935
      if (threadIsSuspended) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1936
        //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1937
        // The semaphore has been incremented, but while we were waiting
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1938
        // another thread suspended us. We don't want to continue running
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1939
        // while suspended because that would surprise the thread that
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1940
        // suspended us.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1941
        //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1942
        ret = ::ReleaseSemaphore(sig_sem, 1, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1943
        assert(ret != 0, "ReleaseSemaphore() failed");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1944
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1945
        thread->java_suspend_self();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1946
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1947
    } while (threadIsSuspended);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1948
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1949
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1950
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1951
int os::signal_lookup() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1952
  return check_pending_signals(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1953
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1954
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1955
int os::signal_wait() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1956
  return check_pending_signals(true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1957
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1958
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1959
// Implicit OS exception handling
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1960
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1961
LONG Handle_Exception(struct _EXCEPTION_POINTERS* exceptionInfo, address handler) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1962
  JavaThread* thread = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1963
  // Save pc in thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1964
#ifdef _M_IA64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1965
  thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->StIIP);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1966
  // Set pc to handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1967
  exceptionInfo->ContextRecord->StIIP = (DWORD64)handler;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1968
#elif _M_AMD64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1969
  thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Rip);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1970
  // Set pc to handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1971
  exceptionInfo->ContextRecord->Rip = (DWORD64)handler;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1972
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1973
  thread->set_saved_exception_pc((address)exceptionInfo->ContextRecord->Eip);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1974
  // Set pc to handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1975
  exceptionInfo->ContextRecord->Eip = (LONG)handler;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1976
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1977
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1978
  // Continue the execution
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1979
  return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1980
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1981
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1982
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1983
// Used for PostMortemDump
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1984
extern "C" void safepoints();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1985
extern "C" void find(int x);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1986
extern "C" void events();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1987
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1988
// According to Windows API documentation, an illegal instruction sequence should generate
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1989
// the 0xC000001C exception code. However, real world experience shows that occasionnaly
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1990
// the execution of an illegal instruction can generate the exception code 0xC000001E. This
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1991
// seems to be an undocumented feature of Win NT 4.0 (and probably other Windows systems).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1992
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1993
#define EXCEPTION_ILLEGAL_INSTRUCTION_2 0xC000001E
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1994
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1995
// From "Execution Protection in the Windows Operating System" draft 0.35
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1996
// Once a system header becomes available, the "real" define should be
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1997
// included or copied here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1998
#define EXCEPTION_INFO_EXEC_VIOLATION 0x08
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1999
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2000
#define def_excpt(val) #val, val
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2001
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2002
struct siglabel {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2003
  char *name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2004
  int   number;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2005
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2006
7692
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2007
// All Visual C++ exceptions thrown from code generated by the Microsoft Visual
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2008
// C++ compiler contain this error code. Because this is a compiler-generated
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2009
// error, the code is not listed in the Win32 API header files.
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2010
// The code is actually a cryptic mnemonic device, with the initial "E"
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2011
// standing for "exception" and the final 3 bytes (0x6D7363) representing the
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2012
// ASCII values of "msc".
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2013
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2014
#define EXCEPTION_UNCAUGHT_CXX_EXCEPTION    0xE06D7363
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2015
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2016
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2017
struct siglabel exceptlabels[] = {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2018
    def_excpt(EXCEPTION_ACCESS_VIOLATION),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2019
    def_excpt(EXCEPTION_DATATYPE_MISALIGNMENT),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2020
    def_excpt(EXCEPTION_BREAKPOINT),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2021
    def_excpt(EXCEPTION_SINGLE_STEP),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2022
    def_excpt(EXCEPTION_ARRAY_BOUNDS_EXCEEDED),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2023
    def_excpt(EXCEPTION_FLT_DENORMAL_OPERAND),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2024
    def_excpt(EXCEPTION_FLT_DIVIDE_BY_ZERO),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2025
    def_excpt(EXCEPTION_FLT_INEXACT_RESULT),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2026
    def_excpt(EXCEPTION_FLT_INVALID_OPERATION),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2027
    def_excpt(EXCEPTION_FLT_OVERFLOW),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2028
    def_excpt(EXCEPTION_FLT_STACK_CHECK),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2029
    def_excpt(EXCEPTION_FLT_UNDERFLOW),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2030
    def_excpt(EXCEPTION_INT_DIVIDE_BY_ZERO),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2031
    def_excpt(EXCEPTION_INT_OVERFLOW),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2032
    def_excpt(EXCEPTION_PRIV_INSTRUCTION),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2033
    def_excpt(EXCEPTION_IN_PAGE_ERROR),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2034
    def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2035
    def_excpt(EXCEPTION_ILLEGAL_INSTRUCTION_2),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2036
    def_excpt(EXCEPTION_NONCONTINUABLE_EXCEPTION),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2037
    def_excpt(EXCEPTION_STACK_OVERFLOW),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2038
    def_excpt(EXCEPTION_INVALID_DISPOSITION),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2039
    def_excpt(EXCEPTION_GUARD_PAGE),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2040
    def_excpt(EXCEPTION_INVALID_HANDLE),
7692
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2041
    def_excpt(EXCEPTION_UNCAUGHT_CXX_EXCEPTION),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2042
    NULL, 0
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2043
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2044
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2045
const char* os::exception_name(int exception_code, char *buf, size_t size) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2046
  for (int i = 0; exceptlabels[i].name != NULL; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2047
    if (exceptlabels[i].number == exception_code) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2048
       jio_snprintf(buf, size, "%s", exceptlabels[i].name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2049
       return buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2050
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2051
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2052
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2053
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2054
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2055
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2056
//-----------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2057
LONG Handle_IDiv_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2058
  // handle exception caused by idiv; should only happen for -MinInt/-1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2059
  // (division by zero is handled explicitly)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2060
#ifdef _M_IA64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2061
  assert(0, "Fix Handle_IDiv_Exception");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2062
#elif _M_AMD64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2063
  PCONTEXT ctx = exceptionInfo->ContextRecord;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2064
  address pc = (address)ctx->Rip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2065
  NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2066
  assert(pc[0] == 0xF7, "not an idiv opcode");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2067
  assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2068
  assert(ctx->Rax == min_jint, "unexpected idiv exception");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2069
  // set correct result values and continue after idiv instruction
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2070
  ctx->Rip = (DWORD)pc + 2;        // idiv reg, reg  is 2 bytes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2071
  ctx->Rax = (DWORD)min_jint;      // result
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2072
  ctx->Rdx = (DWORD)0;             // remainder
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2073
  // Continue the execution
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2074
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2075
  PCONTEXT ctx = exceptionInfo->ContextRecord;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2076
  address pc = (address)ctx->Eip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2077
  NOT_PRODUCT(Events::log("idiv overflow exception at " INTPTR_FORMAT , pc));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2078
  assert(pc[0] == 0xF7, "not an idiv opcode");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2079
  assert((pc[1] & ~0x7) == 0xF8, "cannot handle non-register operands");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2080
  assert(ctx->Eax == min_jint, "unexpected idiv exception");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2081
  // set correct result values and continue after idiv instruction
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2082
  ctx->Eip = (DWORD)pc + 2;        // idiv reg, reg  is 2 bytes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2083
  ctx->Eax = (DWORD)min_jint;      // result
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2084
  ctx->Edx = (DWORD)0;             // remainder
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2085
  // Continue the execution
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2086
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2087
  return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2088
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2089
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2090
#ifndef  _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2091
//-----------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2092
LONG WINAPI Handle_FLT_Exception(struct _EXCEPTION_POINTERS* exceptionInfo) {
4762
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
  2093
  // handle exception caused by native method modifying control word
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2094
  PCONTEXT ctx = exceptionInfo->ContextRecord;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2095
  DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2096
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2097
  switch (exception_code) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2098
    case EXCEPTION_FLT_DENORMAL_OPERAND:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2099
    case EXCEPTION_FLT_DIVIDE_BY_ZERO:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2100
    case EXCEPTION_FLT_INEXACT_RESULT:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2101
    case EXCEPTION_FLT_INVALID_OPERATION:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2102
    case EXCEPTION_FLT_OVERFLOW:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2103
    case EXCEPTION_FLT_STACK_CHECK:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2104
    case EXCEPTION_FLT_UNDERFLOW:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2105
      jint fp_control_word = (* (jint*) StubRoutines::addr_fpu_cntrl_wrd_std());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2106
      if (fp_control_word != ctx->FloatSave.ControlWord) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2107
        // Restore FPCW and mask out FLT exceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2108
        ctx->FloatSave.ControlWord = fp_control_word | 0xffffffc0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2109
        // Mask out pending FLT exceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2110
        ctx->FloatSave.StatusWord &=  0xffffff00;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2111
        return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2112
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2113
  }
4762
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
  2114
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
  2115
  if (prev_uef_handler != NULL) {
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
  2116
    // We didn't handle this exception so pass it to the previous
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
  2117
    // UnhandledExceptionFilter.
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
  2118
    return (prev_uef_handler)(exceptionInfo);
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
  2119
  }
c75b48e6b250 6918421: 1/1 in-process JVM now ignores preset Windows unhandled exception filter
dcubed
parents: 1664
diff changeset
  2120
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2121
  return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2122
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2123
#else //_WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2124
/*
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2125
  On Windows, the mxcsr control bits are non-volatile across calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2126
  See also CR 6192333
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2127
  If EXCEPTION_FLT_* happened after some native method modified
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2128
  mxcsr - it is not a jvm fault.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2129
  However should we decide to restore of mxcsr after a faulty
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2130
  native method we can uncomment following code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2131
      jint MxCsr = INITIAL_MXCSR;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2132
        // we can't use StubRoutines::addr_mxcsr_std()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2133
        // because in Win64 mxcsr is not saved there
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2134
      if (MxCsr != ctx->MxCsr) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2135
        ctx->MxCsr = MxCsr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2136
        return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2137
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2138
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2139
*/
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2140
#endif //_WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2141
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2142
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2143
// Fatal error reporting is single threaded so we can make this a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2144
// static and preallocated.  If it's more than MAX_PATH silently ignore
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2145
// it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2146
static char saved_error_file[MAX_PATH] = {0};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2147
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2148
void os::set_error_file(const char *logfile) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2149
  if (strlen(logfile) <= MAX_PATH) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2150
    strncpy(saved_error_file, logfile, MAX_PATH);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2151
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2152
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2153
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2154
static inline void report_error(Thread* t, DWORD exception_code,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2155
                                address addr, void* siginfo, void* context) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2156
  VMError err(t, exception_code, addr, siginfo, context);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2157
  err.report_and_die();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2158
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2159
  // If UseOsErrorReporting, this will return here and save the error file
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2160
  // somewhere where we can find it in the minidump.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2161
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2162
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2163
//-----------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2164
LONG WINAPI topLevelExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2165
  if (InterceptOSException) return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2166
  DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2167
#ifdef _M_IA64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2168
  address pc = (address) exceptionInfo->ContextRecord->StIIP;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2169
#elif _M_AMD64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2170
  address pc = (address) exceptionInfo->ContextRecord->Rip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2171
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2172
  address pc = (address) exceptionInfo->ContextRecord->Eip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2173
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2174
  Thread* t = ThreadLocalStorage::get_thread_slow();          // slow & steady
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2175
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2176
#ifndef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2177
  // Execution protection violation - win32 running on AMD64 only
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2178
  // Handled first to avoid misdiagnosis as a "normal" access violation;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2179
  // This is safe to do because we have a new/unique ExceptionInformation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2180
  // code for this condition.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2181
  if (exception_code == EXCEPTION_ACCESS_VIOLATION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2182
    PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2183
    int exception_subcode = (int) exceptionRecord->ExceptionInformation[0];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2184
    address addr = (address) exceptionRecord->ExceptionInformation[1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2185
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2186
    if (exception_subcode == EXCEPTION_INFO_EXEC_VIOLATION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2187
      int page_size = os::vm_page_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2188
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2189
      // Make sure the pc and the faulting address are sane.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2190
      //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2191
      // If an instruction spans a page boundary, and the page containing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2192
      // the beginning of the instruction is executable but the following
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2193
      // page is not, the pc and the faulting address might be slightly
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2194
      // different - we still want to unguard the 2nd page in this case.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2195
      //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2196
      // 15 bytes seems to be a (very) safe value for max instruction size.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2197
      bool pc_is_near_addr =
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2198
        (pointer_delta((void*) addr, (void*) pc, sizeof(char)) < 15);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2199
      bool instr_spans_page_boundary =
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2200
        (align_size_down((intptr_t) pc ^ (intptr_t) addr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2201
                         (intptr_t) page_size) > 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2202
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2203
      if (pc == addr || (pc_is_near_addr && instr_spans_page_boundary)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2204
        static volatile address last_addr =
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2205
          (address) os::non_memory_address_word();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2206
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2207
        // In conservative mode, don't unguard unless the address is in the VM
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2208
        if (UnguardOnExecutionViolation > 0 && addr != last_addr &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2209
            (UnguardOnExecutionViolation > 1 || os::address_is_in_vm(addr))) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2210
1664
fc9ed50498fb 6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents: 1620
diff changeset
  2211
          // Set memory to RWX and retry
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2212
          address page_start =
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2213
            (address) align_size_down((intptr_t) addr, (intptr_t) page_size);
1664
fc9ed50498fb 6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents: 1620
diff changeset
  2214
          bool res = os::protect_memory((char*) page_start, page_size,
fc9ed50498fb 6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents: 1620
diff changeset
  2215
                                        os::MEM_PROT_RWX);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2216
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2217
          if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2218
            char buf[256];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2219
            jio_snprintf(buf, sizeof(buf), "Execution protection violation "
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2220
                         "at " INTPTR_FORMAT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2221
                         ", unguarding " INTPTR_FORMAT ": %s", addr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2222
                         page_start, (res ? "success" : strerror(errno)));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2223
            tty->print_raw_cr(buf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2224
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2225
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2226
          // Set last_addr so if we fault again at the same address, we don't
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2227
          // end up in an endless loop.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2228
          //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2229
          // There are two potential complications here.  Two threads trapping
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2230
          // at the same address at the same time could cause one of the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2231
          // threads to think it already unguarded, and abort the VM.  Likely
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2232
          // very rare.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2233
          //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2234
          // The other race involves two threads alternately trapping at
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2235
          // different addresses and failing to unguard the page, resulting in
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2236
          // an endless loop.  This condition is probably even more unlikely
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2237
          // than the first.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2238
          //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2239
          // Although both cases could be avoided by using locks or thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2240
          // local last_addr, these solutions are unnecessary complication:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2241
          // this handler is a best-effort safety net, not a complete solution.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2242
          // It is disabled by default and should only be used as a workaround
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2243
          // in case we missed any no-execute-unsafe VM code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2244
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2245
          last_addr = addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2246
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2247
          return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2248
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2249
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2250
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2251
      // Last unguard failed or not unguarding
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2252
      tty->print_raw_cr("Execution protection violation");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2253
      report_error(t, exception_code, addr, exceptionInfo->ExceptionRecord,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2254
                   exceptionInfo->ContextRecord);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2255
      return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2256
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2257
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2258
#endif // _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2259
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2260
  // Check to see if we caught the safepoint code in the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2261
  // process of write protecting the memory serialization page.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2262
  // It write enables the page immediately after protecting it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2263
  // so just return.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2264
  if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2265
    JavaThread* thread = (JavaThread*) t;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2266
    PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2267
    address addr = (address) exceptionRecord->ExceptionInformation[1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2268
    if ( os::is_memory_serialize_page(thread, addr) ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2269
      // Block current thread until the memory serialize page permission restored.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2270
      os::block_on_serialize_page_trap();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2271
      return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2272
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2273
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2274
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2275
  if (t != NULL && t->is_Java_thread()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2276
    JavaThread* thread = (JavaThread*) t;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2277
    bool in_java = thread->thread_state() == _thread_in_Java;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2278
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2279
    // Handle potential stack overflows up front.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2280
    if (exception_code == EXCEPTION_STACK_OVERFLOW) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2281
      if (os::uses_stack_guard_pages()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2282
#ifdef _M_IA64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2283
        //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2284
        // If it's a legal stack address continue, Windows will map it in.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2285
        //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2286
        PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2287
        address addr = (address) exceptionRecord->ExceptionInformation[1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2288
        if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2289
          return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2290
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2291
        // The register save area is the same size as the memory stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2292
        // and starts at the page just above the start of the memory stack.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2293
        // If we get a fault in this area, we've run out of register
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2294
        // stack.  If we are in java, try throwing a stack overflow exception.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2295
        if (addr > thread->stack_base() &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2296
                      addr <= (thread->stack_base()+thread->stack_size()) ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2297
          char buf[256];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2298
          jio_snprintf(buf, sizeof(buf),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2299
                       "Register stack overflow, addr:%p, stack_base:%p\n",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2300
                       addr, thread->stack_base() );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2301
          tty->print_raw_cr(buf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2302
          // If not in java code, return and hope for the best.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2303
          return in_java ? Handle_Exception(exceptionInfo,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2304
            SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2305
            :  EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2306
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2307
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2308
        if (thread->stack_yellow_zone_enabled()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2309
          // Yellow zone violation.  The o/s has unprotected the first yellow
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2310
          // zone page for us.  Note:  must call disable_stack_yellow_zone to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2311
          // update the enabled status, even if the zone contains only one page.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2312
          thread->disable_stack_yellow_zone();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2313
          // If not in java code, return and hope for the best.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2314
          return in_java ? Handle_Exception(exceptionInfo,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2315
            SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2316
            :  EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2317
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2318
          // Fatal red zone violation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2319
          thread->disable_stack_red_zone();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2320
          tty->print_raw_cr("An unrecoverable stack overflow has occurred.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2321
          report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2322
                       exceptionInfo->ContextRecord);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2323
          return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2324
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2325
      } else if (in_java) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2326
        // JVM-managed guard pages cannot be used on win95/98.  The o/s provides
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2327
        // a one-time-only guard page, which it has released to us.  The next
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2328
        // stack overflow on this thread will result in an ACCESS_VIOLATION.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2329
        return Handle_Exception(exceptionInfo,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2330
          SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2331
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2332
        // Can only return and hope for the best.  Further stack growth will
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2333
        // result in an ACCESS_VIOLATION.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2334
        return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2335
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2336
    } else if (exception_code == EXCEPTION_ACCESS_VIOLATION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2337
      // Either stack overflow or null pointer exception.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2338
      if (in_java) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2339
        PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2340
        address addr = (address) exceptionRecord->ExceptionInformation[1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2341
        address stack_end = thread->stack_base() - thread->stack_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2342
        if (addr < stack_end && addr >= stack_end - os::vm_page_size()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2343
          // Stack overflow.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2344
          assert(!os::uses_stack_guard_pages(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2345
            "should be caught by red zone code above.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2346
          return Handle_Exception(exceptionInfo,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2347
            SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2348
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2349
        //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2350
        // Check for safepoint polling and implicit null
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2351
        // We only expect null pointers in the stubs (vtable)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2352
        // the rest are checked explicitly now.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2353
        //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2354
        CodeBlob* cb = CodeCache::find_blob(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2355
        if (cb != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2356
          if (os::is_poll_address(addr)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2357
            address stub = SharedRuntime::get_poll_stub(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2358
            return Handle_Exception(exceptionInfo, stub);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2359
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2360
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2361
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2362
#ifdef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2363
          //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2364
          // If it's a legal stack address map the entire region in
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2365
          //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2366
          PEXCEPTION_RECORD exceptionRecord = exceptionInfo->ExceptionRecord;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2367
          address addr = (address) exceptionRecord->ExceptionInformation[1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2368
          if (addr > thread->stack_yellow_zone_base() && addr < thread->stack_base() ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2369
                  addr = (address)((uintptr_t)addr &
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2370
                         (~((uintptr_t)os::vm_page_size() - (uintptr_t)1)));
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2371
                  os::commit_memory((char *)addr, thread->stack_base() - addr,
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2372
                                    false );
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2373
                  return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2374
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2375
          else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2376
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2377
          {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2378
            // Null pointer exception.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2379
#ifdef _M_IA64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2380
            // We catch register stack overflows in compiled code by doing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2381
            // an explicit compare and executing a st8(G0, G0) if the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2382
            // BSP enters into our guard area.  We test for the overflow
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2383
            // condition and fall into the normal null pointer exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2384
            // code if BSP hasn't overflowed.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2385
            if ( in_java ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2386
              if(thread->register_stack_overflow()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2387
                assert((address)exceptionInfo->ContextRecord->IntS3 ==
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2388
                                thread->register_stack_limit(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2389
                               "GR7 doesn't contain register_stack_limit");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2390
                // Disable the yellow zone which sets the state that
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2391
                // we've got a stack overflow problem.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2392
                if (thread->stack_yellow_zone_enabled()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2393
                  thread->disable_stack_yellow_zone();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2394
                }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2395
                // Give us some room to process the exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2396
                thread->disable_register_stack_guard();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2397
                // Update GR7 with the new limit so we can continue running
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2398
                // compiled code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2399
                exceptionInfo->ContextRecord->IntS3 =
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2400
                               (ULONGLONG)thread->register_stack_limit();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2401
                return Handle_Exception(exceptionInfo,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2402
                       SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::STACK_OVERFLOW));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2403
              } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2404
                //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2405
                // Check for implicit null
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2406
                // We only expect null pointers in the stubs (vtable)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2407
                // the rest are checked explicitly now.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2408
                //
1618
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1421
diff changeset
  2409
                if (((uintptr_t)addr) < os::vm_page_size() ) {
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1421
diff changeset
  2410
                  // an access to the first page of VM--assume it is a null pointer
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1421
diff changeset
  2411
                  address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL);
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1421
diff changeset
  2412
                  if (stub != NULL) return Handle_Exception(exceptionInfo, stub);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2413
                }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2414
              }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2415
            } // in_java
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2416
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2417
            // IA64 doesn't use implicit null checking yet. So we shouldn't
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2418
            // get here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2419
            tty->print_raw_cr("Access violation, possible null pointer exception");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2420
            report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2421
                         exceptionInfo->ContextRecord);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2422
            return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2423
#else /* !IA64 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2424
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2425
            // Windows 98 reports faulting addresses incorrectly
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2426
            if (!MacroAssembler::needs_explicit_null_check((intptr_t)addr) ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2427
                !os::win32::is_nt()) {
1618
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1421
diff changeset
  2428
              address stub = SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_NULL);
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1421
diff changeset
  2429
              if (stub != NULL) return Handle_Exception(exceptionInfo, stub);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2430
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2431
            report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2432
                         exceptionInfo->ContextRecord);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2433
            return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2434
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2435
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2436
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2437
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2438
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2439
#ifdef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2440
      // Special care for fast JNI field accessors.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2441
      // jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2442
      // in and the heap gets shrunk before the field access.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2443
      if (exception_code == EXCEPTION_ACCESS_VIOLATION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2444
        address addr = JNI_FastGetField::find_slowcase_pc(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2445
        if (addr != (address)-1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2446
          return Handle_Exception(exceptionInfo, addr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2447
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2448
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2449
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2450
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2451
#ifdef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2452
      // Windows will sometimes generate an access violation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2453
      // when we call malloc.  Since we use VectoredExceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2454
      // on 64 bit platforms, we see this exception.  We must
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2455
      // pass this exception on so Windows can recover.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2456
      // We check to see if the pc of the fault is in NTDLL.DLL
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2457
      // if so, we pass control on to Windows for handling.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2458
      if (UseVectoredExceptions && _addr_in_ntdll(pc)) return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2459
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2460
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2461
      // Stack overflow or null pointer exception in native code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2462
      report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2463
                   exceptionInfo->ContextRecord);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2464
      return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2465
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2466
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2467
    if (in_java) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2468
      switch (exception_code) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2469
      case EXCEPTION_INT_DIVIDE_BY_ZERO:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2470
        return Handle_Exception(exceptionInfo, SharedRuntime::continuation_for_implicit_exception(thread, pc, SharedRuntime::IMPLICIT_DIVIDE_BY_ZERO));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2471
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2472
      case EXCEPTION_INT_OVERFLOW:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2473
        return Handle_IDiv_Exception(exceptionInfo);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2474
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2475
      } // switch
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2476
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2477
#ifndef _WIN64
7692
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2478
    if (((thread->thread_state() == _thread_in_Java) ||
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2479
        (thread->thread_state() == _thread_in_native)) &&
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2480
        exception_code != EXCEPTION_UNCAUGHT_CXX_EXCEPTION)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2481
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2482
      LONG result=Handle_FLT_Exception(exceptionInfo);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2483
      if (result==EXCEPTION_CONTINUE_EXECUTION) return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2484
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2485
#endif //_WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2486
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2487
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2488
  if (exception_code != EXCEPTION_BREAKPOINT) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2489
#ifndef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2490
    report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2491
                 exceptionInfo->ContextRecord);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2492
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2493
    // Itanium Windows uses a VectoredExceptionHandler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2494
    // Which means that C++ programatic exception handlers (try/except)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2495
    // will get here.  Continue the search for the right except block if
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2496
    // the exception code is not a fatal code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2497
    switch ( exception_code ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2498
      case EXCEPTION_ACCESS_VIOLATION:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2499
      case EXCEPTION_STACK_OVERFLOW:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2500
      case EXCEPTION_ILLEGAL_INSTRUCTION:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2501
      case EXCEPTION_ILLEGAL_INSTRUCTION_2:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2502
      case EXCEPTION_INT_OVERFLOW:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2503
      case EXCEPTION_INT_DIVIDE_BY_ZERO:
7692
02c573fae027 6961186: Better VM handling of unexpected exceptions from application native code
zgu
parents: 7448
diff changeset
  2504
      case EXCEPTION_UNCAUGHT_CXX_EXCEPTION:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2505
      {  report_error(t, exception_code, pc, exceptionInfo->ExceptionRecord,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2506
                       exceptionInfo->ContextRecord);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2507
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2508
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2509
      default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2510
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2511
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2512
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2513
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2514
  return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2515
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2516
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2517
#ifndef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2518
// Special care for fast JNI accessors.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2519
// jni_fast_Get<Primitive>Field can trap at certain pc's if a GC kicks in and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2520
// the heap gets shrunk before the field access.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2521
// Need to install our own structured exception handler since native code may
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2522
// install its own.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2523
LONG WINAPI fastJNIAccessorExceptionFilter(struct _EXCEPTION_POINTERS* exceptionInfo) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2524
  DWORD exception_code = exceptionInfo->ExceptionRecord->ExceptionCode;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2525
  if (exception_code == EXCEPTION_ACCESS_VIOLATION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2526
    address pc = (address) exceptionInfo->ContextRecord->Eip;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2527
    address addr = JNI_FastGetField::find_slowcase_pc(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2528
    if (addr != (address)-1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2529
      return Handle_Exception(exceptionInfo, addr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2530
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2531
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2532
  return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2533
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2534
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2535
#define DEFINE_FAST_GETFIELD(Return,Fieldname,Result) \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2536
Return JNICALL jni_fast_Get##Result##Field_wrapper(JNIEnv *env, jobject obj, jfieldID fieldID) { \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2537
  __try { \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2538
    return (*JNI_FastGetField::jni_fast_Get##Result##Field_fp)(env, obj, fieldID); \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2539
  } __except(fastJNIAccessorExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2540
  } \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2541
  return 0; \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2542
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2543
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2544
DEFINE_FAST_GETFIELD(jboolean, bool,   Boolean)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2545
DEFINE_FAST_GETFIELD(jbyte,    byte,   Byte)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2546
DEFINE_FAST_GETFIELD(jchar,    char,   Char)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2547
DEFINE_FAST_GETFIELD(jshort,   short,  Short)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2548
DEFINE_FAST_GETFIELD(jint,     int,    Int)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2549
DEFINE_FAST_GETFIELD(jlong,    long,   Long)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2550
DEFINE_FAST_GETFIELD(jfloat,   float,  Float)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2551
DEFINE_FAST_GETFIELD(jdouble,  double, Double)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2552
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2553
address os::win32::fast_jni_accessor_wrapper(BasicType type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2554
  switch (type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2555
    case T_BOOLEAN: return (address)jni_fast_GetBooleanField_wrapper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2556
    case T_BYTE:    return (address)jni_fast_GetByteField_wrapper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2557
    case T_CHAR:    return (address)jni_fast_GetCharField_wrapper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2558
    case T_SHORT:   return (address)jni_fast_GetShortField_wrapper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2559
    case T_INT:     return (address)jni_fast_GetIntField_wrapper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2560
    case T_LONG:    return (address)jni_fast_GetLongField_wrapper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2561
    case T_FLOAT:   return (address)jni_fast_GetFloatField_wrapper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2562
    case T_DOUBLE:  return (address)jni_fast_GetDoubleField_wrapper;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2563
    default:        ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2564
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2565
  return (address)-1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2566
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2567
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2568
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2569
// Virtual Memory
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2570
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2571
int os::vm_page_size() { return os::win32::vm_page_size(); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2572
int os::vm_allocation_granularity() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2573
  return os::win32::vm_allocation_granularity();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2574
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2575
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2576
// Windows large page support is available on Windows 2003. In order to use
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2577
// large page memory, the administrator must first assign additional privilege
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2578
// to the user:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2579
//   + select Control Panel -> Administrative Tools -> Local Security Policy
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2580
//   + select Local Policies -> User Rights Assignment
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2581
//   + double click "Lock pages in memory", add users and/or groups
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2582
//   + reboot
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2583
// Note the above steps are needed for administrator as well, as administrators
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2584
// by default do not have the privilege to lock pages in memory.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2585
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2586
// Note about Windows 2003: although the API supports committing large page
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2587
// memory on a page-by-page basis and VirtualAlloc() returns success under this
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2588
// scenario, I found through experiment it only uses large page if the entire
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2589
// memory region is reserved and committed in a single VirtualAlloc() call.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2590
// This makes Windows large page support more or less like Solaris ISM, in
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2591
// that the entire heap must be committed upfront. This probably will change
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2592
// in the future, if so the code below needs to be revisited.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2593
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2594
#ifndef MEM_LARGE_PAGES
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2595
#define MEM_LARGE_PAGES 0x20000000
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2596
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2597
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2598
// GetLargePageMinimum is only available on Windows 2003. The other functions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2599
// are available on NT but not on Windows 98/Me. We have to resolve them at
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2600
// runtime.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2601
typedef SIZE_T (WINAPI *GetLargePageMinimum_func_type) (void);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2602
typedef BOOL (WINAPI *AdjustTokenPrivileges_func_type)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2603
             (HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2604
typedef BOOL (WINAPI *OpenProcessToken_func_type) (HANDLE, DWORD, PHANDLE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2605
typedef BOOL (WINAPI *LookupPrivilegeValue_func_type) (LPCTSTR, LPCTSTR, PLUID);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2606
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2607
static GetLargePageMinimum_func_type   _GetLargePageMinimum;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2608
static AdjustTokenPrivileges_func_type _AdjustTokenPrivileges;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2609
static OpenProcessToken_func_type      _OpenProcessToken;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2610
static LookupPrivilegeValue_func_type  _LookupPrivilegeValue;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2611
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2612
static HINSTANCE _kernel32;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2613
static HINSTANCE _advapi32;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2614
static HANDLE    _hProcess;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2615
static HANDLE    _hToken;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2616
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2617
static size_t _large_page_size = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2618
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2619
static bool resolve_functions_for_large_page_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2620
  _kernel32 = LoadLibrary("kernel32.dll");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2621
  if (_kernel32 == NULL) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2622
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2623
  _GetLargePageMinimum   = CAST_TO_FN_PTR(GetLargePageMinimum_func_type,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2624
                            GetProcAddress(_kernel32, "GetLargePageMinimum"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2625
  if (_GetLargePageMinimum == NULL) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2626
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2627
  _advapi32 = LoadLibrary("advapi32.dll");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2628
  if (_advapi32 == NULL) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2629
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2630
  _AdjustTokenPrivileges = CAST_TO_FN_PTR(AdjustTokenPrivileges_func_type,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2631
                            GetProcAddress(_advapi32, "AdjustTokenPrivileges"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2632
  _OpenProcessToken      = CAST_TO_FN_PTR(OpenProcessToken_func_type,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2633
                            GetProcAddress(_advapi32, "OpenProcessToken"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2634
  _LookupPrivilegeValue  = CAST_TO_FN_PTR(LookupPrivilegeValue_func_type,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2635
                            GetProcAddress(_advapi32, "LookupPrivilegeValueA"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2636
  return _AdjustTokenPrivileges != NULL &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2637
         _OpenProcessToken      != NULL &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2638
         _LookupPrivilegeValue  != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2639
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2640
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2641
static bool request_lock_memory_privilege() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2642
  _hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2643
                                os::current_process_id());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2644
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2645
  LUID luid;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2646
  if (_hProcess != NULL &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2647
      _OpenProcessToken(_hProcess, TOKEN_ADJUST_PRIVILEGES, &_hToken) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2648
      _LookupPrivilegeValue(NULL, "SeLockMemoryPrivilege", &luid)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2649
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2650
    TOKEN_PRIVILEGES tp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2651
    tp.PrivilegeCount = 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2652
    tp.Privileges[0].Luid = luid;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2653
    tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2654
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2655
    // AdjustTokenPrivileges() may return TRUE even when it couldn't change the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2656
    // privilege. Check GetLastError() too. See MSDN document.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2657
    if (_AdjustTokenPrivileges(_hToken, false, &tp, sizeof(tp), NULL, NULL) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2658
        (GetLastError() == ERROR_SUCCESS)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2659
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2660
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2661
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2662
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2663
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2664
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2665
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2666
static void cleanup_after_large_page_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2667
  _GetLargePageMinimum = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2668
  _AdjustTokenPrivileges = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2669
  _OpenProcessToken = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2670
  _LookupPrivilegeValue = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2671
  if (_kernel32) FreeLibrary(_kernel32);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2672
  _kernel32 = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2673
  if (_advapi32) FreeLibrary(_advapi32);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2674
  _advapi32 = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2675
  if (_hProcess) CloseHandle(_hProcess);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2676
  _hProcess = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2677
  if (_hToken) CloseHandle(_hToken);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2678
  _hToken = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2679
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2680
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2681
bool os::large_page_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2682
  if (!UseLargePages) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2683
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2684
  // print a warning if any large page related flag is specified on command line
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2685
  bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2686
                         !FLAG_IS_DEFAULT(LargePageSizeInBytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2687
  bool success = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2688
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2689
# define WARN(msg) if (warn_on_failure) { warning(msg); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2690
  if (resolve_functions_for_large_page_init()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2691
    if (request_lock_memory_privilege()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2692
      size_t s = _GetLargePageMinimum();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2693
      if (s) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2694
#if defined(IA32) || defined(AMD64)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2695
        if (s > 4*M || LargePageSizeInBytes > 4*M) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2696
          WARN("JVM cannot use large pages bigger than 4mb.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2697
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2698
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2699
          if (LargePageSizeInBytes && LargePageSizeInBytes % s == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2700
            _large_page_size = LargePageSizeInBytes;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2701
          } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2702
            _large_page_size = s;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2703
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2704
          success = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2705
#if defined(IA32) || defined(AMD64)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2706
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2707
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2708
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2709
        WARN("Large page is not supported by the processor.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2710
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2711
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2712
      WARN("JVM cannot use large page memory because it does not have enough privilege to lock pages in memory.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2713
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2714
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2715
    WARN("Large page is not supported by the operating system.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2716
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2717
#undef WARN
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2718
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2719
  const size_t default_page_size = (size_t) vm_page_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2720
  if (success && _large_page_size > default_page_size) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2721
    _page_sizes[0] = _large_page_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2722
    _page_sizes[1] = default_page_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2723
    _page_sizes[2] = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2724
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2725
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2726
  cleanup_after_large_page_init();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2727
  return success;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2728
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2729
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2730
// On win32, one cannot release just a part of reserved memory, it's an
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2731
// all or nothing deal.  When we split a reservation, we must break the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2732
// reservation into two reservations.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2733
void os::split_reserved_memory(char *base, size_t size, size_t split,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2734
                              bool realloc) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2735
  if (size > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2736
    release_memory(base, size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2737
    if (realloc) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2738
      reserve_memory(split, base);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2739
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2740
    if (size != split) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2741
      reserve_memory(size - split, base + split);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2742
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2743
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2744
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2745
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2746
char* os::reserve_memory(size_t bytes, char* addr, size_t alignment_hint) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2747
  assert((size_t)addr % os::vm_allocation_granularity() == 0,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2748
         "reserve alignment");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2749
  assert(bytes % os::vm_allocation_granularity() == 0, "reserve block size");
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2750
  char* res = (char*)VirtualAlloc(addr, bytes, MEM_RESERVE, PAGE_READWRITE);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2751
  assert(res == NULL || addr == NULL || addr == res,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2752
         "Unexpected address from reserve.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2753
  return res;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2754
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2755
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2756
// Reserve memory at an arbitrary address, only if that area is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2757
// available (and not reserved for something else).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2758
char* os::attempt_reserve_memory_at(size_t bytes, char* requested_addr) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2759
  // Windows os::reserve_memory() fails of the requested address range is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2760
  // not avilable.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2761
  return reserve_memory(bytes, requested_addr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2762
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2763
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2764
size_t os::large_page_size() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2765
  return _large_page_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2766
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2767
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2768
bool os::can_commit_large_page_memory() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2769
  // Windows only uses large page memory when the entire region is reserved
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2770
  // and committed in a single VirtualAlloc() call. This may change in the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2771
  // future, but with Windows 2003 it's not possible to commit on demand.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2772
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2773
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2774
252
050143a0dbfb 6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents: 235
diff changeset
  2775
bool os::can_execute_large_page_memory() {
050143a0dbfb 6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents: 235
diff changeset
  2776
  return true;
050143a0dbfb 6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents: 235
diff changeset
  2777
}
050143a0dbfb 6642862: Code cache allocation fails with large pages after 6588638
jcoomes
parents: 235
diff changeset
  2778
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2779
char* os::reserve_memory_special(size_t bytes, char* addr, bool exec) {
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2780
2561
a62b5317b682 6830069: UseLargePages is broken on Win64
coleenp
parents: 2358
diff changeset
  2781
  const DWORD prot = exec ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE;
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2782
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2783
  if (UseLargePagesIndividualAllocation) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2784
    if (TracePageSizes && Verbose) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2785
       tty->print_cr("Reserving large pages individually.");
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2786
    }
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2787
    char * p_buf;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2788
    // first reserve enough address space in advance since we want to be
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2789
    // able to break a single contiguous virtual address range into multiple
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2790
    // large page commits but WS2003 does not allow reserving large page space
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2791
    // so we just use 4K pages for reserve, this gives us a legal contiguous
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2792
    // address space. then we will deallocate that reservation, and re alloc
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2793
    // using large pages
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2794
    const size_t size_of_reserve = bytes + _large_page_size;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2795
    if (bytes > size_of_reserve) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2796
      // Overflowed.
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2797
      warning("Individually allocated large pages failed, "
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2798
        "use -XX:-UseLargePagesIndividualAllocation to turn off");
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2799
      return NULL;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2800
    }
2254
f13dda645a4b 6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents: 2012
diff changeset
  2801
    p_buf = (char *) VirtualAlloc(addr,
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2802
                                 size_of_reserve,  // size of Reserve
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2803
                                 MEM_RESERVE,
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2804
                                 PAGE_READWRITE);
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2805
    // If reservation failed, return NULL
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2806
    if (p_buf == NULL) return NULL;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2807
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2808
    release_memory(p_buf, bytes + _large_page_size);
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2809
    // round up to page boundary.  If the size_of_reserve did not
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2810
    // overflow and the reservation did not fail, this align up
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2811
    // should not overflow.
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2812
    p_buf = (char *) align_size_up((size_t)p_buf, _large_page_size);
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2813
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2814
    // now go through and allocate one page at a time until all bytes are
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2815
    // allocated
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2816
    size_t  bytes_remaining = align_size_up(bytes, _large_page_size);
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2817
    // An overflow of align_size_up() would have been caught above
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2818
    // in the calculation of size_of_reserve.
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2819
    char * next_alloc_addr = p_buf;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2820
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2821
#ifdef ASSERT
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2822
    // Variable for the failure injection
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2823
    long ran_num = os::random();
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2824
    size_t fail_after = ran_num % bytes;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2825
#endif
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2826
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2827
    while (bytes_remaining) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2828
      size_t bytes_to_rq = MIN2(bytes_remaining, _large_page_size);
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2829
      // Note allocate and commit
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2830
      char * p_new;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2831
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2832
#ifdef ASSERT
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2833
      bool inject_error = LargePagesIndividualAllocationInjectError &&
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2834
          (bytes_remaining <= fail_after);
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2835
#else
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2836
      const bool inject_error = false;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2837
#endif
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2838
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2839
      if (inject_error) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2840
        p_new = NULL;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2841
      } else {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2842
        p_new = (char *) VirtualAlloc(next_alloc_addr,
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2843
                                    bytes_to_rq,
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2844
                                    MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES,
2561
a62b5317b682 6830069: UseLargePages is broken on Win64
coleenp
parents: 2358
diff changeset
  2845
                                    prot);
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2846
      }
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2847
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2848
      if (p_new == NULL) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2849
        // Free any allocated pages
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2850
        if (next_alloc_addr > p_buf) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2851
          // Some memory was committed so release it.
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2852
          size_t bytes_to_release = bytes - bytes_remaining;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2853
          release_memory(p_buf, bytes_to_release);
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2854
        }
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2855
#ifdef ASSERT
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2856
        if (UseLargePagesIndividualAllocation &&
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2857
            LargePagesIndividualAllocationInjectError) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2858
          if (TracePageSizes && Verbose) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2859
             tty->print_cr("Reserving large pages individually failed.");
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2860
          }
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2861
        }
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2862
#endif
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2863
        return NULL;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2864
      }
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2865
      bytes_remaining -= bytes_to_rq;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2866
      next_alloc_addr += bytes_to_rq;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2867
    }
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2868
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2869
    return p_buf;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2870
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2871
  } else {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2872
    // normal policy just allocate it all at once
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2873
    DWORD flag = MEM_RESERVE | MEM_COMMIT | MEM_LARGE_PAGES;
2561
a62b5317b682 6830069: UseLargePages is broken on Win64
coleenp
parents: 2358
diff changeset
  2874
    char * res = (char *)VirtualAlloc(NULL, bytes, flag, prot);
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2875
    return res;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  2876
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2877
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2878
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2879
bool os::release_memory_special(char* base, size_t bytes) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2880
  return release_memory(base, bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2881
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2882
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2883
void os::print_statistics() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2884
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2885
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2886
bool os::commit_memory(char* addr, size_t bytes, bool exec) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2887
  if (bytes == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2888
    // Don't bother the OS with noops.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2889
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2890
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2891
  assert((size_t) addr % os::vm_page_size() == 0, "commit on page boundaries");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2892
  assert(bytes % os::vm_page_size() == 0, "commit in page-sized chunks");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2893
  // Don't attempt to print anything if the OS call fails. We're
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2894
  // probably low on resources, so the print itself may cause crashes.
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2895
  bool result = VirtualAlloc(addr, bytes, MEM_COMMIT, PAGE_READWRITE) != 0;
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2896
  if (result != NULL && exec) {
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2897
    DWORD oldprot;
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2898
    // Windows doc says to use VirtualProtect to get execute permissions
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2899
    return VirtualProtect(addr, bytes, PAGE_EXECUTE_READWRITE, &oldprot) != 0;
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2900
  } else {
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2901
    return result;
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2902
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2903
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2904
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2905
bool os::commit_memory(char* addr, size_t size, size_t alignment_hint,
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2906
                       bool exec) {
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2907
  return commit_memory(addr, size, exec);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2908
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2909
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2910
bool os::uncommit_memory(char* addr, size_t bytes) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2911
  if (bytes == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2912
    // Don't bother the OS with noops.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2913
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2914
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2915
  assert((size_t) addr % os::vm_page_size() == 0, "uncommit on page boundaries");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2916
  assert(bytes % os::vm_page_size() == 0, "uncommit in page-sized chunks");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2917
  return VirtualFree(addr, bytes, MEM_DECOMMIT) != 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2918
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2919
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2920
bool os::release_memory(char* addr, size_t bytes) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2921
  return VirtualFree(addr, 0, MEM_RELEASE) != 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2922
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2923
5085
4f0c435f8c3c 6929067: Stack guard pages should be removed when thread is detached
coleenp
parents: 4763
diff changeset
  2924
bool os::create_stack_guard_pages(char* addr, size_t size) {
4f0c435f8c3c 6929067: Stack guard pages should be removed when thread is detached
coleenp
parents: 4763
diff changeset
  2925
  return os::commit_memory(addr, size);
4f0c435f8c3c 6929067: Stack guard pages should be removed when thread is detached
coleenp
parents: 4763
diff changeset
  2926
}
4f0c435f8c3c 6929067: Stack guard pages should be removed when thread is detached
coleenp
parents: 4763
diff changeset
  2927
4f0c435f8c3c 6929067: Stack guard pages should be removed when thread is detached
coleenp
parents: 4763
diff changeset
  2928
bool os::remove_stack_guard_pages(char* addr, size_t size) {
4f0c435f8c3c 6929067: Stack guard pages should be removed when thread is detached
coleenp
parents: 4763
diff changeset
  2929
  return os::uncommit_memory(addr, size);
4f0c435f8c3c 6929067: Stack guard pages should be removed when thread is detached
coleenp
parents: 4763
diff changeset
  2930
}
4f0c435f8c3c 6929067: Stack guard pages should be removed when thread is detached
coleenp
parents: 4763
diff changeset
  2931
823
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2932
// Set protections specified
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2933
bool os::protect_memory(char* addr, size_t bytes, ProtType prot,
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2934
                        bool is_committed) {
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2935
  unsigned int p = 0;
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2936
  switch (prot) {
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2937
  case MEM_PROT_NONE: p = PAGE_NOACCESS; break;
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2938
  case MEM_PROT_READ: p = PAGE_READONLY; break;
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2939
  case MEM_PROT_RW:   p = PAGE_READWRITE; break;
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2940
  case MEM_PROT_RWX:  p = PAGE_EXECUTE_READWRITE; break;
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2941
  default:
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2942
    ShouldNotReachHere();
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2943
  }
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2944
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2945
  DWORD old_status;
823
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2946
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2947
  // Strange enough, but on Win32 one can change protection only for committed
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2948
  // memory, not a big deal anyway, as bytes less or equal than 64K
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  2949
  if (!is_committed && !commit_memory(addr, bytes, prot == MEM_PROT_RWX)) {
823
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2950
    fatal("cannot commit protection page");
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2951
  }
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2952
  // One cannot use os::guard_memory() here, as on Win32 guard page
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2953
  // have different (one-shot) semantics, from MSDN on PAGE_GUARD:
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2954
  //
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2955
  // Pages in the region become guard pages. Any attempt to access a guard page
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2956
  // causes the system to raise a STATUS_GUARD_PAGE exception and turn off
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2957
  // the guard page status. Guard pages thus act as a one-time access alarm.
9a5271881bc0 6716785: implicit null checks not triggering with CompressedOops
coleenp
parents: 670
diff changeset
  2958
  return VirtualProtect(addr, bytes, p, &old_status) != 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2959
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2960
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2961
bool os::guard_memory(char* addr, size_t bytes) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2962
  DWORD old_status;
1664
fc9ed50498fb 6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents: 1620
diff changeset
  2963
  return VirtualProtect(addr, bytes, PAGE_READWRITE | PAGE_GUARD, &old_status) != 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2964
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2965
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2966
bool os::unguard_memory(char* addr, size_t bytes) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2967
  DWORD old_status;
1664
fc9ed50498fb 6727377: VM stack guard pages on Windows should PAGE_READWRITE not PAGE_EXECUTE_READWRITE
coleenp
parents: 1620
diff changeset
  2968
  return VirtualProtect(addr, bytes, PAGE_READWRITE, &old_status) != 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2969
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2970
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2971
void os::realign_memory(char *addr, size_t bytes, size_t alignment_hint) { }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2972
void os::free_memory(char *addr, size_t bytes)         { }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2973
void os::numa_make_global(char *addr, size_t bytes)    { }
388
bcc631c5bbec 6684395: Port NUMA-aware allocator to linux
iveresov
parents: 252
diff changeset
  2974
void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint)    { }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2975
bool os::numa_topology_changed()                       { return false; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2976
size_t os::numa_get_groups_num()                       { return 1; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2977
int os::numa_get_group_id()                            { return 0; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2978
size_t os::numa_get_leaf_groups(int *ids, size_t size) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2979
  if (size > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2980
    ids[0] = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2981
    return 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2982
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2983
  return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2984
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2985
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2986
bool os::get_page_info(char *start, page_info* info) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2987
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2988
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2989
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2990
char *os::scan_pages(char *start, char* end, page_info* page_expected, page_info* page_found) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2991
  return end;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2992
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2993
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2994
char* os::non_memory_address_word() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2995
  // Must never look like an address returned by reserve_memory,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2996
  // even in its subfields (as defined by the CPU immediate fields,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2997
  // if the CPU splits constants across multiple instructions).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2998
  return (char*)-1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2999
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3000
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3001
#define MAX_ERROR_COUNT 100
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3002
#define SYS_THREAD_ERROR 0xffffffffUL
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3003
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3004
void os::pd_start_thread(Thread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3005
  DWORD ret = ResumeThread(thread->osthread()->thread_handle());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3006
  // Returns previous suspend state:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3007
  // 0:  Thread was not suspended
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3008
  // 1:  Thread is running now
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3009
  // >1: Thread is still suspended.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3010
  assert(ret != SYS_THREAD_ERROR, "StartThread failed"); // should propagate back
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3011
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3012
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3013
class HighResolutionInterval {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3014
  // The default timer resolution seems to be 10 milliseconds.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3015
  // (Where is this written down?)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3016
  // If someone wants to sleep for only a fraction of the default,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3017
  // then we set the timer resolution down to 1 millisecond for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3018
  // the duration of their interval.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3019
  // We carefully set the resolution back, since otherwise we
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3020
  // seem to incur an overhead (3%?) that we don't need.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3021
  // CONSIDER: if ms is small, say 3, then we should run with a high resolution time.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3022
  // Buf if ms is large, say 500, or 503, we should avoid the call to timeBeginPeriod().
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3023
  // Alternatively, we could compute the relative error (503/500 = .6%) and only use
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3024
  // timeBeginPeriod() if the relative error exceeded some threshold.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3025
  // timeBeginPeriod() has been linked to problems with clock drift on win32 systems and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3026
  // to decreased efficiency related to increased timer "tick" rates.  We want to minimize
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3027
  // (a) calls to timeBeginPeriod() and timeEndPeriod() and (b) time spent with high
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3028
  // resolution timers running.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3029
private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3030
    jlong resolution;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3031
public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3032
  HighResolutionInterval(jlong ms) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3033
    resolution = ms % 10L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3034
    if (resolution != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3035
      MMRESULT result = timeBeginPeriod(1L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3036
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3037
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3038
  ~HighResolutionInterval() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3039
    if (resolution != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3040
      MMRESULT result = timeEndPeriod(1L);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3041
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3042
    resolution = 0L;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3043
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3044
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3045
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3046
int os::sleep(Thread* thread, jlong ms, bool interruptable) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3047
  jlong limit = (jlong) MAXDWORD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3048
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3049
  while(ms > limit) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3050
    int res;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3051
    if ((res = sleep(thread, limit, interruptable)) != OS_TIMEOUT)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3052
      return res;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3053
    ms -= limit;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3054
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3055
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3056
  assert(thread == Thread::current(),  "thread consistency check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3057
  OSThread* osthread = thread->osthread();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3058
  OSThreadWaitState osts(osthread, false /* not Object.wait() */);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3059
  int result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3060
  if (interruptable) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3061
    assert(thread->is_Java_thread(), "must be java thread");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3062
    JavaThread *jt = (JavaThread *) thread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3063
    ThreadBlockInVM tbivm(jt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3064
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3065
    jt->set_suspend_equivalent();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3066
    // cleared by handle_special_suspend_equivalent_condition() or
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3067
    // java_suspend_self() via check_and_wait_while_suspended()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3068
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3069
    HANDLE events[1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3070
    events[0] = osthread->interrupt_event();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3071
    HighResolutionInterval *phri=NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3072
    if(!ForceTimeHighResolution)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3073
      phri = new HighResolutionInterval( ms );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3074
    if (WaitForMultipleObjects(1, events, FALSE, (DWORD)ms) == WAIT_TIMEOUT) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3075
      result = OS_TIMEOUT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3076
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3077
      ResetEvent(osthread->interrupt_event());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3078
      osthread->set_interrupted(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3079
      result = OS_INTRPT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3080
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3081
    delete phri; //if it is NULL, harmless
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3082
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3083
    // were we externally suspended while we were waiting?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3084
    jt->check_and_wait_while_suspended();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3085
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3086
    assert(!thread->is_Java_thread(), "must not be java thread");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3087
    Sleep((long) ms);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3088
    result = OS_TIMEOUT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3089
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3090
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3091
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3092
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3093
// Sleep forever; naked call to OS-specific sleep; use with CAUTION
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3094
void os::infinite_sleep() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3095
  while (true) {    // sleep forever ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3096
    Sleep(100000);  // ... 100 seconds at a time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3097
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3098
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3099
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3100
typedef BOOL (WINAPI * STTSignature)(void) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3101
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3102
os::YieldResult os::NakedYield() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3103
  // Use either SwitchToThread() or Sleep(0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3104
  // Consider passing back the return value from SwitchToThread().
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3105
  // We use GetProcAddress() as ancient Win9X versions of windows doen't support SwitchToThread.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3106
  // In that case we revert to Sleep(0).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3107
  static volatile STTSignature stt = (STTSignature) 1 ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3108
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3109
  if (stt == ((STTSignature) 1)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3110
    stt = (STTSignature) ::GetProcAddress (LoadLibrary ("Kernel32.dll"), "SwitchToThread") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3111
    // It's OK if threads race during initialization as the operation above is idempotent.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3112
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3113
  if (stt != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3114
    return (*stt)() ? os::YIELD_SWITCHED : os::YIELD_NONEREADY ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3115
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3116
    Sleep (0) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3117
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3118
  return os::YIELD_UNKNOWN ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3119
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3120
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3121
void os::yield() {  os::NakedYield(); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3122
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3123
void os::yield_all(int attempts) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3124
  // Yields to all threads, including threads with lower priorities
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3125
  Sleep(1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3126
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3127
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3128
// Win32 only gives you access to seven real priorities at a time,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3129
// so we compress Java's ten down to seven.  It would be better
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3130
// if we dynamically adjusted relative priorities.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3131
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3132
int os::java_to_os_priority[MaxPriority + 1] = {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3133
  THREAD_PRIORITY_IDLE,                         // 0  Entry should never be used
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3134
  THREAD_PRIORITY_LOWEST,                       // 1  MinPriority
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3135
  THREAD_PRIORITY_LOWEST,                       // 2
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3136
  THREAD_PRIORITY_BELOW_NORMAL,                 // 3
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3137
  THREAD_PRIORITY_BELOW_NORMAL,                 // 4
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3138
  THREAD_PRIORITY_NORMAL,                       // 5  NormPriority
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3139
  THREAD_PRIORITY_NORMAL,                       // 6
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3140
  THREAD_PRIORITY_ABOVE_NORMAL,                 // 7
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3141
  THREAD_PRIORITY_ABOVE_NORMAL,                 // 8
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3142
  THREAD_PRIORITY_HIGHEST,                      // 9  NearMaxPriority
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3143
  THREAD_PRIORITY_HIGHEST                       // 10 MaxPriority
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3144
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3145
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3146
int prio_policy1[MaxPriority + 1] = {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3147
  THREAD_PRIORITY_IDLE,                         // 0  Entry should never be used
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3148
  THREAD_PRIORITY_LOWEST,                       // 1  MinPriority
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3149
  THREAD_PRIORITY_LOWEST,                       // 2
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3150
  THREAD_PRIORITY_BELOW_NORMAL,                 // 3
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3151
  THREAD_PRIORITY_BELOW_NORMAL,                 // 4
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3152
  THREAD_PRIORITY_NORMAL,                       // 5  NormPriority
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3153
  THREAD_PRIORITY_ABOVE_NORMAL,                 // 6
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3154
  THREAD_PRIORITY_ABOVE_NORMAL,                 // 7
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3155
  THREAD_PRIORITY_HIGHEST,                      // 8
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3156
  THREAD_PRIORITY_HIGHEST,                      // 9  NearMaxPriority
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3157
  THREAD_PRIORITY_TIME_CRITICAL                 // 10 MaxPriority
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3158
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3159
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3160
static int prio_init() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3161
  // If ThreadPriorityPolicy is 1, switch tables
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3162
  if (ThreadPriorityPolicy == 1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3163
    int i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3164
    for (i = 0; i < MaxPriority + 1; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3165
      os::java_to_os_priority[i] = prio_policy1[i];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3166
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3167
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3168
  return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3169
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3170
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3171
OSReturn os::set_native_priority(Thread* thread, int priority) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3172
  if (!UseThreadPriorities) return OS_OK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3173
  bool ret = SetThreadPriority(thread->osthread()->thread_handle(), priority) != 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3174
  return ret ? OS_OK : OS_ERR;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3175
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3176
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3177
OSReturn os::get_native_priority(const Thread* const thread, int* priority_ptr) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3178
  if ( !UseThreadPriorities ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3179
    *priority_ptr = java_to_os_priority[NormPriority];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3180
    return OS_OK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3181
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3182
  int os_prio = GetThreadPriority(thread->osthread()->thread_handle());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3183
  if (os_prio == THREAD_PRIORITY_ERROR_RETURN) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3184
    assert(false, "GetThreadPriority failed");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3185
    return OS_ERR;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3186
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3187
  *priority_ptr = os_prio;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3188
  return OS_OK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3189
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3190
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3191
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3192
// Hint to the underlying OS that a task switch would not be good.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3193
// Void return because it's a hint and can fail.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3194
void os::hint_no_preempt() {}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3195
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3196
void os::interrupt(Thread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3197
  assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3198
         "possibility of dangling Thread pointer");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3199
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3200
  OSThread* osthread = thread->osthread();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3201
  osthread->set_interrupted(true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3202
  // More than one thread can get here with the same value of osthread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3203
  // resulting in multiple notifications.  We do, however, want the store
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3204
  // to interrupted() to be visible to other threads before we post
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3205
  // the interrupt event.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3206
  OrderAccess::release();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3207
  SetEvent(osthread->interrupt_event());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3208
  // For JSR166:  unpark after setting status
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3209
  if (thread->is_Java_thread())
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3210
    ((JavaThread*)thread)->parker()->unpark();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3211
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3212
  ParkEvent * ev = thread->_ParkEvent ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3213
  if (ev != NULL) ev->unpark() ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3214
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3215
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3216
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3217
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3218
bool os::is_interrupted(Thread* thread, bool clear_interrupted) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3219
  assert(!thread->is_Java_thread() || Thread::current() == thread || Threads_lock->owned_by_self(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3220
         "possibility of dangling Thread pointer");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3221
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3222
  OSThread* osthread = thread->osthread();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3223
  bool interrupted;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3224
  interrupted = osthread->interrupted();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3225
  if (clear_interrupted == true) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3226
    osthread->set_interrupted(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3227
    ResetEvent(osthread->interrupt_event());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3228
  } // Otherwise leave the interrupted state alone
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3229
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3230
  return interrupted;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3231
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3232
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3233
// Get's a pc (hint) for a running thread. Currently used only for profiling.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3234
ExtendedPC os::get_thread_pc(Thread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3235
  CONTEXT context;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3236
  context.ContextFlags = CONTEXT_CONTROL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3237
  HANDLE handle = thread->osthread()->thread_handle();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3238
#ifdef _M_IA64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3239
  assert(0, "Fix get_thread_pc");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3240
  return ExtendedPC(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3241
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3242
  if (GetThreadContext(handle, &context)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3243
#ifdef _M_AMD64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3244
    return ExtendedPC((address) context.Rip);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3245
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3246
    return ExtendedPC((address) context.Eip);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3247
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3248
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3249
    return ExtendedPC(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3250
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3251
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3252
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3253
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3254
// GetCurrentThreadId() returns DWORD
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3255
intx os::current_thread_id()          { return GetCurrentThreadId(); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3256
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3257
static int _initial_pid = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3258
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3259
int os::current_process_id()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3260
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3261
  return (_initial_pid ? _initial_pid : _getpid());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3262
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3263
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3264
int    os::win32::_vm_page_size       = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3265
int    os::win32::_vm_allocation_granularity = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3266
int    os::win32::_processor_type     = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3267
// Processor level is not available on non-NT systems, use vm_version instead
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3268
int    os::win32::_processor_level    = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3269
julong os::win32::_physical_memory    = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3270
size_t os::win32::_default_stack_size = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3271
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3272
         intx os::win32::_os_thread_limit    = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3273
volatile intx os::win32::_os_thread_count    = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3274
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3275
bool   os::win32::_is_nt              = false;
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3276
bool   os::win32::_is_windows_2003    = false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3277
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3278
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3279
void os::win32::initialize_system_info() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3280
  SYSTEM_INFO si;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3281
  GetSystemInfo(&si);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3282
  _vm_page_size    = si.dwPageSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3283
  _vm_allocation_granularity = si.dwAllocationGranularity;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3284
  _processor_type  = si.dwProcessorType;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3285
  _processor_level = si.wProcessorLevel;
4493
9204129f065e 6843629: Make current hotspot build part of jdk5 control build
phh
parents: 3809
diff changeset
  3286
  set_processor_count(si.dwNumberOfProcessors);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3287
3577
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  3288
  MEMORYSTATUSEX ms;
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  3289
  ms.dwLength = sizeof(ms);
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  3290
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3291
  // also returns dwAvailPhys (free physical memory bytes), dwTotalVirtual, dwAvailVirtual,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3292
  // dwMemoryLoad (% of memory in use)
3577
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  3293
  GlobalMemoryStatusEx(&ms);
488338f3a402 6840305: Discrepancy in system memory details (when 4G or greater) reported by JVM and Windows OS
poonam
parents: 2561
diff changeset
  3294
  _physical_memory = ms.ullTotalPhys;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3295
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3296
  OSVERSIONINFO oi;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3297
  oi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3298
  GetVersionEx(&oi);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3299
  switch(oi.dwPlatformId) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3300
    case VER_PLATFORM_WIN32_WINDOWS: _is_nt = false; break;
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3301
    case VER_PLATFORM_WIN32_NT:
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3302
      _is_nt = true;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3303
      {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3304
        int os_vers = oi.dwMajorVersion * 1000 + oi.dwMinorVersion;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3305
        if (os_vers == 5002) {
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3306
          _is_windows_2003 = true;
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3307
        }
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3308
      }
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3309
      break;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3310
    default: fatal("Unknown platform");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3311
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3312
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3313
  _default_stack_size = os::current_stack_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3314
  assert(_default_stack_size > (size_t) _vm_page_size, "invalid stack size");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3315
  assert((_default_stack_size & (_vm_page_size - 1)) == 0,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3316
    "stack size not a multiple of page size");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3317
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3318
  initialize_performance_counter();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3319
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3320
  // Win95/Win98 scheduler bug work-around. The Win95/98 scheduler is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3321
  // known to deadlock the system, if the VM issues to thread operations with
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3322
  // a too high frequency, e.g., such as changing the priorities.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3323
  // The 6000 seems to work well - no deadlocks has been notices on the test
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3324
  // programs that we have seen experience this problem.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3325
  if (!os::win32::is_nt()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3326
    StarvationMonitorInterval = 6000;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3327
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3328
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3329
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3330
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3331
void os::win32::setmode_streams() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3332
  _setmode(_fileno(stdin), _O_BINARY);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3333
  _setmode(_fileno(stdout), _O_BINARY);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3334
  _setmode(_fileno(stderr), _O_BINARY);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3335
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3336
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3337
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3338
int os::message_box(const char* title, const char* message) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3339
  int result = MessageBox(NULL, message, title,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3340
                          MB_YESNO | MB_ICONERROR | MB_SYSTEMMODAL | MB_DEFAULT_DESKTOP_ONLY);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3341
  return result == IDYES;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3342
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3343
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3344
int os::allocate_thread_local_storage() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3345
  return TlsAlloc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3346
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3347
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3348
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3349
void os::free_thread_local_storage(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3350
  TlsFree(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3351
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3352
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3353
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3354
void os::thread_local_storage_at_put(int index, void* value) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3355
  TlsSetValue(index, value);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3356
  assert(thread_local_storage_at(index) == value, "Just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3357
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3358
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3359
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3360
void* os::thread_local_storage_at(int index) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3361
  return TlsGetValue(index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3362
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3363
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3364
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3365
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3366
#ifndef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3367
// Helpers to check whether NX protection is enabled
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3368
int nx_exception_filter(_EXCEPTION_POINTERS *pex) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3369
  if (pex->ExceptionRecord->ExceptionCode == EXCEPTION_ACCESS_VIOLATION &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3370
      pex->ExceptionRecord->NumberParameters > 0 &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3371
      pex->ExceptionRecord->ExceptionInformation[0] ==
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3372
      EXCEPTION_INFO_EXEC_VIOLATION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3373
    return EXCEPTION_EXECUTE_HANDLER;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3374
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3375
  return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3376
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3377
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3378
void nx_check_protection() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3379
  // If NX is enabled we'll get an exception calling into code on the stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3380
  char code[] = { (char)0xC3 }; // ret
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3381
  void *code_ptr = (void *)code;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3382
  __try {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3383
    __asm call code_ptr
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3384
  } __except(nx_exception_filter((_EXCEPTION_POINTERS*)_exception_info())) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3385
    tty->print_raw_cr("NX protection detected.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3386
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3387
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3388
#endif // _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3389
#endif // PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3390
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3391
// this is called _before_ the global arguments have been parsed
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3392
void os::init(void) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3393
  _initial_pid = _getpid();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3394
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3395
  init_random(1234567);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3396
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3397
  win32::initialize_system_info();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3398
  win32::setmode_streams();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3399
  init_page_sizes((size_t) win32::vm_page_size());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3400
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3401
  // For better scalability on MP systems (must be called after initialize_system_info)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3402
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3403
  if (is_MP()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3404
    NoYieldsInMicrolock = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3405
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3406
#endif
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3407
  // This may be overridden later when argument processing is done.
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3408
  FLAG_SET_ERGO(bool, UseLargePagesIndividualAllocation,
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3409
    os::win32::is_windows_2003());
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3410
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3411
  // Initialize main_process and main_thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3412
  main_process = GetCurrentProcess();  // Remember main_process is a pseudo handle
1421
a7ef1a3b2644 6660681: Incrementally reserve pages on win server 2003 for better large page affinity
jmasa
parents: 1388
diff changeset
  3413
 if (!DuplicateHandle(main_process, GetCurrentThread(), main_process,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3414
                       &main_thread, THREAD_ALL_ACCESS, false, 0)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3415
    fatal("DuplicateHandle failed\n");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3416
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3417
  main_thread_id = (int) GetCurrentThreadId();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3418
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3419
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3420
// To install functions for atexit processing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3421
extern "C" {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3422
  static void perfMemory_exit_helper() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3423
    perfMemory_exit();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3424
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3425
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3426
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3427
// this is called _after_ the global arguments have been parsed
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3428
jint os::init_2(void) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3429
  // Allocate a single page and mark it as readable for safepoint polling
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3430
  address polling_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READONLY);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3431
  guarantee( polling_page != NULL, "Reserve Failed for polling page");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3432
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3433
  address return_page  = (address)VirtualAlloc(polling_page, os::vm_page_size(), MEM_COMMIT, PAGE_READONLY);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3434
  guarantee( return_page != NULL, "Commit Failed for polling page");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3435
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3436
  os::set_polling_page( polling_page );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3437
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3438
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3439
  if( Verbose && PrintMiscellaneous )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3440
    tty->print("[SafePoint Polling address: " INTPTR_FORMAT "]\n", (intptr_t)polling_page);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3441
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3442
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3443
  if (!UseMembar) {
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  3444
    address mem_serialize_page = (address)VirtualAlloc(NULL, os::vm_page_size(), MEM_RESERVE, PAGE_READWRITE);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3445
    guarantee( mem_serialize_page != NULL, "Reserve Failed for memory serialize page");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3446
2268
bea8be80ec88 6541756: Reduce executable C-heap
coleenp
parents: 2259
diff changeset
  3447
    return_page  = (address)VirtualAlloc(mem_serialize_page, os::vm_page_size(), MEM_COMMIT, PAGE_READWRITE);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3448
    guarantee( return_page != NULL, "Commit Failed for memory serialize page");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3449
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3450
    os::set_memory_serialize_page( mem_serialize_page );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3451
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3452
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3453
    if(Verbose && PrintMiscellaneous)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3454
      tty->print("[Memory Serialize  Page address: " INTPTR_FORMAT "]\n", (intptr_t)mem_serialize_page);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3455
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3456
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3457
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3458
  FLAG_SET_DEFAULT(UseLargePages, os::large_page_init());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3459
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3460
  // Setup Windows Exceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3461
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3462
  // On Itanium systems, Structured Exception Handling does not
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3463
  // work since stack frames must be walkable by the OS.  Since
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3464
  // much of our code is dynamically generated, and we do not have
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3465
  // proper unwind .xdata sections, the system simply exits
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3466
  // rather than delivering the exception.  To work around
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3467
  // this we use VectorExceptions instead.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3468
#ifdef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3469
  if (UseVectoredExceptions) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3470
    topLevelVectoredExceptionHandler = AddVectoredExceptionHandler( 1, topLevelExceptionFilter);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3471
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3472
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3473
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3474
  // for debugging float code generation bugs
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3475
  if (ForceFloatExceptions) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3476
#ifndef  _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3477
    static long fp_control_word = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3478
    __asm { fstcw fp_control_word }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3479
    // see Intel PPro Manual, Vol. 2, p 7-16
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3480
    const long precision = 0x20;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3481
    const long underflow = 0x10;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3482
    const long overflow  = 0x08;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3483
    const long zero_div  = 0x04;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3484
    const long denorm    = 0x02;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3485
    const long invalid   = 0x01;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3486
    fp_control_word |= invalid;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3487
    __asm { fldcw fp_control_word }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3488
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3489
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3490
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3491
  // If stack_commit_size is 0, windows will reserve the default size,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3492
  // but only commit a small portion of it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3493
  size_t stack_commit_size = round_to(ThreadStackSize*K, os::vm_page_size());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3494
  size_t default_reserve_size = os::win32::default_stack_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3495
  size_t actual_reserve_size = stack_commit_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3496
  if (stack_commit_size < default_reserve_size) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3497
    // If stack_commit_size == 0, we want this too
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3498
    actual_reserve_size = default_reserve_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3499
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3500
6964
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3501
  // Check minimum allowable stack size for thread creation and to initialize
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3502
  // the java system classes, including StackOverflowError - depends on page
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3503
  // size.  Add a page for compiler2 recursion in main thread.
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3504
  // Add in 2*BytesPerWord times page size to account for VM stack during
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3505
  // class initialization depending on 32 or 64 bit VM.
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3506
  size_t min_stack_allowed =
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3507
            (size_t)(StackYellowPages+StackRedPages+StackShadowPages+
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3508
            2*BytesPerWord COMPILER2_PRESENT(+1)) * os::vm_page_size();
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3509
  if (actual_reserve_size < min_stack_allowed) {
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3510
    tty->print_cr("\nThe stack size specified is too small, "
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3511
                  "Specify at least %dk",
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3512
                  min_stack_allowed / K);
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3513
    return JNI_ERR;
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3514
  }
6e45ffa3bccf 6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents: 6962
diff changeset
  3515
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3516
  JavaThread::set_stack_size_at_create(stack_commit_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3517
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3518
  // Calculate theoretical max. size of Threads to guard gainst artifical
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3519
  // out-of-memory situations, where all available address-space has been
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3520
  // reserved by thread stacks.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3521
  assert(actual_reserve_size != 0, "Must have a stack");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3522
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3523
  // Calculate the thread limit when we should start doing Virtual Memory
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3524
  // banging. Currently when the threads will have used all but 200Mb of space.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3525
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3526
  // TODO: consider performing a similar calculation for commit size instead
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3527
  // as reserve size, since on a 64-bit platform we'll run into that more
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3528
  // often than running out of virtual memory space.  We can use the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3529
  // lower value of the two calculations as the os_thread_limit.
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 252
diff changeset
  3530
  size_t max_address_space = ((size_t)1 << (BitsPerWord - 1)) - (200 * K * K);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3531
  win32::_os_thread_limit = (intx)(max_address_space / actual_reserve_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3532
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3533
  // at exit methods are called in the reverse order of their registration.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3534
  // there is no limit to the number of functions registered. atexit does
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3535
  // not set errno.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3536
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3537
  if (PerfAllowAtExitRegistration) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3538
    // only register atexit functions if PerfAllowAtExitRegistration is set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3539
    // atexit functions can be delayed until process exit time, which
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3540
    // can be problematic for embedded VM situations. Embedded VMs should
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3541
    // call DestroyJavaVM() to assure that VM resources are released.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3542
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3543
    // note: perfMemory_exit_helper atexit function may be removed in
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3544
    // the future if the appropriate cleanup code can be added to the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3545
    // VM_Exit VMOperation's doit method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3546
    if (atexit(perfMemory_exit_helper) != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3547
      warning("os::init_2 atexit(perfMemory_exit_helper) failed");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3548
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3549
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3550
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3551
  // initialize PSAPI or ToolHelp for fatal error handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3552
  if (win32::is_nt()) _init_psapi();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3553
  else _init_toolhelp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3554
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3555
#ifndef _WIN64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3556
  // Print something if NX is enabled (win32 on AMD64)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3557
  NOT_PRODUCT(if (PrintMiscellaneous && Verbose) nx_check_protection());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3558
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3559
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3560
  // initialize thread priority policy
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3561
  prio_init();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3562
1615
b46d9f19bde2 6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents: 1421
diff changeset
  3563
  if (UseNUMA && !ForceNUMA) {
b46d9f19bde2 6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents: 1421
diff changeset
  3564
    UseNUMA = false; // Currently unsupported.
b46d9f19bde2 6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents: 1421
diff changeset
  3565
  }
b46d9f19bde2 6779436: NUMA allocator: libnuma expects certain size of the buffer in numa_node_to_cpus()
iveresov
parents: 1421
diff changeset
  3566
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3567
  return JNI_OK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3568
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3569
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
  3570
void os::init_3(void) {
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
  3571
  return;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
  3572
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3573
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3574
// Mark the polling page as unreadable
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3575
void os::make_polling_page_unreadable(void) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3576
  DWORD old_status;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3577
  if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_NOACCESS, &old_status) )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3578
    fatal("Could not disable polling page");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3579
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3580
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3581
// Mark the polling page as readable
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3582
void os::make_polling_page_readable(void) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3583
  DWORD old_status;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3584
  if( !VirtualProtect((char *)_polling_page, os::vm_page_size(), PAGE_READONLY, &old_status) )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3585
    fatal("Could not enable polling page");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3586
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3587
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3588
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3589
int os::stat(const char *path, struct stat *sbuf) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3590
  char pathbuf[MAX_PATH];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3591
  if (strlen(path) > MAX_PATH - 1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3592
    errno = ENAMETOOLONG;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3593
    return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3594
  }
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3595
  os::native_path(strcpy(pathbuf, path));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3596
  int ret = ::stat(pathbuf, sbuf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3597
  if (sbuf != NULL && UseUTCFileTimestamp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3598
    // Fix for 6539723.  st_mtime returned from stat() is dependent on
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3599
    // the system timezone and so can return different values for the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3600
    // same file if/when daylight savings time changes.  This adjustment
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3601
    // makes sure the same timestamp is returned regardless of the TZ.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3602
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3603
    // See:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3604
    // http://msdn.microsoft.com/library/
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3605
    //   default.asp?url=/library/en-us/sysinfo/base/
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3606
    //   time_zone_information_str.asp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3607
    // and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3608
    // http://msdn.microsoft.com/library/default.asp?url=
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3609
    //   /library/en-us/sysinfo/base/settimezoneinformation.asp
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3610
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3611
    // NOTE: there is a insidious bug here:  If the timezone is changed
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3612
    // after the call to stat() but before 'GetTimeZoneInformation()', then
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3613
    // the adjustment we do here will be wrong and we'll return the wrong
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3614
    // value (which will likely end up creating an invalid class data
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3615
    // archive).  Absent a better API for this, or some time zone locking
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3616
    // mechanism, we'll have to live with this risk.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3617
    TIME_ZONE_INFORMATION tz;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3618
    DWORD tzid = GetTimeZoneInformation(&tz);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3619
    int daylightBias =
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3620
      (tzid == TIME_ZONE_ID_DAYLIGHT) ?  tz.DaylightBias : tz.StandardBias;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3621
    sbuf->st_mtime += (tz.Bias + daylightBias) * 60;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3622
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3623
  return ret;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3624
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3625
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3626
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3627
#define FT2INT64(ft) \
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3628
  ((jlong)((jlong)(ft).dwHighDateTime << 32 | (julong)(ft).dwLowDateTime))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3629
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3630
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3631
// current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3632
// are used by JVM M&M and JVMTI to get user+sys or user CPU time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3633
// of a thread.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3634
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3635
// current_thread_cpu_time() and thread_cpu_time(Thread*) returns
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3636
// the fast estimate available on the platform.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3637
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3638
// current_thread_cpu_time() is not optimized for Windows yet
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3639
jlong os::current_thread_cpu_time() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3640
  // return user + sys since the cost is the same
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3641
  return os::thread_cpu_time(Thread::current(), true /* user+sys */);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3642
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3643
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3644
jlong os::thread_cpu_time(Thread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3645
  // consistent with what current_thread_cpu_time() returns.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3646
  return os::thread_cpu_time(thread, true /* user+sys */);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3647
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3648
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3649
jlong os::current_thread_cpu_time(bool user_sys_cpu_time) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3650
  return os::thread_cpu_time(Thread::current(), user_sys_cpu_time);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3651
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3652
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3653
jlong os::thread_cpu_time(Thread* thread, bool user_sys_cpu_time) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3654
  // This code is copy from clasic VM -> hpi::sysThreadCPUTime
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3655
  // If this function changes, os::is_thread_cpu_time_supported() should too
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3656
  if (os::win32::is_nt()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3657
    FILETIME CreationTime;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3658
    FILETIME ExitTime;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3659
    FILETIME KernelTime;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3660
    FILETIME UserTime;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3661
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3662
    if ( GetThreadTimes(thread->osthread()->thread_handle(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3663
                    &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3664
      return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3665
    else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3666
      if (user_sys_cpu_time) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3667
        return (FT2INT64(UserTime) + FT2INT64(KernelTime)) * 100;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3668
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3669
        return FT2INT64(UserTime) * 100;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3670
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3671
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3672
    return (jlong) timeGetTime() * 1000000;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3673
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3674
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3675
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3676
void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3677
  info_ptr->max_value = ALL_64_BITS;        // the max value -- all 64 bits
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3678
  info_ptr->may_skip_backward = false;      // GetThreadTimes returns absolute time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3679
  info_ptr->may_skip_forward = false;       // GetThreadTimes returns absolute time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3680
  info_ptr->kind = JVMTI_TIMER_TOTAL_CPU;   // user+system time is returned
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3681
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3682
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3683
void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3684
  info_ptr->max_value = ALL_64_BITS;        // the max value -- all 64 bits
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3685
  info_ptr->may_skip_backward = false;      // GetThreadTimes returns absolute time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3686
  info_ptr->may_skip_forward = false;       // GetThreadTimes returns absolute time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3687
  info_ptr->kind = JVMTI_TIMER_TOTAL_CPU;   // user+system time is returned
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3688
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3689
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3690
bool os::is_thread_cpu_time_supported() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3691
  // see os::thread_cpu_time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3692
  if (os::win32::is_nt()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3693
    FILETIME CreationTime;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3694
    FILETIME ExitTime;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3695
    FILETIME KernelTime;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3696
    FILETIME UserTime;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3697
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3698
    if ( GetThreadTimes(GetCurrentThread(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3699
                    &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3700
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3701
    else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3702
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3703
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3704
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3705
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3706
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3707
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3708
// Windows does't provide a loadavg primitive so this is stubbed out for now.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3709
// It does have primitives (PDH API) to get CPU usage and run queue length.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3710
// "\\Processor(_Total)\\% Processor Time", "\\System\\Processor Queue Length"
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3711
// If we wanted to implement loadavg on Windows, we have a few options:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3712
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3713
// a) Query CPU usage and run queue length and "fake" an answer by
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3714
//    returning the CPU usage if it's under 100%, and the run queue
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3715
//    length otherwise.  It turns out that querying is pretty slow
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3716
//    on Windows, on the order of 200 microseconds on a fast machine.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3717
//    Note that on the Windows the CPU usage value is the % usage
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3718
//    since the last time the API was called (and the first call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3719
//    returns 100%), so we'd have to deal with that as well.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3720
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3721
// b) Sample the "fake" answer using a sampling thread and store
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3722
//    the answer in a global variable.  The call to loadavg would
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3723
//    just return the value of the global, avoiding the slow query.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3724
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3725
// c) Sample a better answer using exponential decay to smooth the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3726
//    value.  This is basically the algorithm used by UNIX kernels.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3727
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3728
// Note that sampling thread starvation could affect both (b) and (c).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3729
int os::loadavg(double loadavg[], int nelem) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3730
  return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3731
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3732
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3733
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3734
// DontYieldALot=false by default: dutifully perform all yields as requested by JVM_Yield()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3735
bool os::dont_yield() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3736
  return DontYieldALot;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3737
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3738
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3739
// This method is a slightly reworked copy of JDK's sysOpen
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3740
// from src/windows/hpi/src/sys_api_md.c
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3741
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3742
int os::open(const char *path, int oflag, int mode) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3743
  char pathbuf[MAX_PATH];
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3744
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3745
  if (strlen(path) > MAX_PATH - 1) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3746
    errno = ENAMETOOLONG;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3747
          return -1;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3748
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3749
  os::native_path(strcpy(pathbuf, path));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3750
  return ::open(pathbuf, oflag | O_BINARY | O_NOINHERIT, mode);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3751
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3752
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3753
// Is a (classpath) directory empty?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3754
bool os::dir_is_empty(const char* path) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3755
  WIN32_FIND_DATA fd;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3756
  HANDLE f = FindFirstFile(path, &fd);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3757
  if (f == INVALID_HANDLE_VALUE) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3758
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3759
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3760
  FindClose(f);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3761
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3762
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3763
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3764
// create binary file, rewriting existing file if required
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3765
int os::create_binary_file(const char* path, bool rewrite_existing) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3766
  int oflags = _O_CREAT | _O_WRONLY | _O_BINARY;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3767
  if (!rewrite_existing) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3768
    oflags |= _O_EXCL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3769
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3770
  return ::open(path, oflags, _S_IREAD | _S_IWRITE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3771
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3772
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3773
// return current position of file pointer
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3774
jlong os::current_file_offset(int fd) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3775
  return (jlong)::_lseeki64(fd, (__int64)0L, SEEK_CUR);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3776
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3777
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3778
// move file pointer to the specified offset
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3779
jlong os::seek_to_file_offset(int fd, jlong offset) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3780
  return (jlong)::_lseeki64(fd, (__int64)offset, SEEK_SET);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3781
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3782
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3783
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3784
jlong os::lseek(int fd, jlong offset, int whence) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3785
  return (jlong) ::_lseeki64(fd, offset, whence);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3786
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3787
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3788
// This method is a slightly reworked copy of JDK's sysNativePath
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3789
// from src/windows/hpi/src/path_md.c
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3790
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3791
/* Convert a pathname to native format.  On win32, this involves forcing all
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3792
   separators to be '\\' rather than '/' (both are legal inputs, but Win95
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3793
   sometimes rejects '/') and removing redundant separators.  The input path is
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3794
   assumed to have been converted into the character encoding used by the local
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3795
   system.  Because this might be a double-byte encoding, care is taken to
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3796
   treat double-byte lead characters correctly.
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3797
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3798
   This procedure modifies the given path in place, as the result is never
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3799
   longer than the original.  There is no error return; this operation always
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3800
   succeeds. */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3801
char * os::native_path(char *path) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3802
  char *src = path, *dst = path, *end = path;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3803
  char *colon = NULL;           /* If a drive specifier is found, this will
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3804
                                        point to the colon following the drive
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3805
                                        letter */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3806
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3807
  /* Assumption: '/', '\\', ':', and drive letters are never lead bytes */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3808
  assert(((!::IsDBCSLeadByte('/'))
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3809
    && (!::IsDBCSLeadByte('\\'))
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3810
    && (!::IsDBCSLeadByte(':'))),
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3811
    "Illegal lead byte");
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3812
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3813
  /* Check for leading separators */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3814
#define isfilesep(c) ((c) == '/' || (c) == '\\')
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3815
  while (isfilesep(*src)) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3816
    src++;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3817
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3818
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3819
  if (::isalpha(*src) && !::IsDBCSLeadByte(*src) && src[1] == ':') {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3820
    /* Remove leading separators if followed by drive specifier.  This
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3821
      hack is necessary to support file URLs containing drive
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3822
      specifiers (e.g., "file://c:/path").  As a side effect,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3823
      "/c:/path" can be used as an alternative to "c:/path". */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3824
    *dst++ = *src++;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3825
    colon = dst;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3826
    *dst++ = ':';
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3827
    src++;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3828
  } else {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3829
    src = path;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3830
    if (isfilesep(src[0]) && isfilesep(src[1])) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3831
      /* UNC pathname: Retain first separator; leave src pointed at
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3832
         second separator so that further separators will be collapsed
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3833
         into the second separator.  The result will be a pathname
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3834
         beginning with "\\\\" followed (most likely) by a host name. */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3835
      src = dst = path + 1;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3836
      path[0] = '\\';     /* Force first separator to '\\' */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3837
    }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3838
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3839
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3840
  end = dst;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3841
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3842
  /* Remove redundant separators from remainder of path, forcing all
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3843
      separators to be '\\' rather than '/'. Also, single byte space
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3844
      characters are removed from the end of the path because those
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3845
      are not legal ending characters on this operating system.
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3846
  */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3847
  while (*src != '\0') {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3848
    if (isfilesep(*src)) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3849
      *dst++ = '\\'; src++;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3850
      while (isfilesep(*src)) src++;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3851
      if (*src == '\0') {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3852
        /* Check for trailing separator */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3853
        end = dst;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3854
        if (colon == dst - 2) break;                      /* "z:\\" */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3855
        if (dst == path + 1) break;                       /* "\\" */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3856
        if (dst == path + 2 && isfilesep(path[0])) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3857
          /* "\\\\" is not collapsed to "\\" because "\\\\" marks the
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3858
            beginning of a UNC pathname.  Even though it is not, by
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3859
            itself, a valid UNC pathname, we leave it as is in order
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3860
            to be consistent with the path canonicalizer as well
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3861
            as the win32 APIs, which treat this case as an invalid
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3862
            UNC pathname rather than as an alias for the root
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3863
            directory of the current drive. */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3864
          break;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3865
        }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3866
        end = --dst;  /* Path does not denote a root directory, so
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3867
                                    remove trailing separator */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3868
        break;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3869
      }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3870
      end = dst;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3871
    } else {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3872
      if (::IsDBCSLeadByte(*src)) { /* Copy a double-byte character */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3873
        *dst++ = *src++;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3874
        if (*src) *dst++ = *src++;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3875
        end = dst;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3876
      } else {         /* Copy a single-byte character */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3877
        char c = *src++;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3878
        *dst++ = c;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3879
        /* Space is not a legal ending character */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3880
        if (c != ' ') end = dst;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3881
      }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3882
    }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3883
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3884
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3885
  *end = '\0';
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3886
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3887
  /* For "z:", add "." to work around a bug in the C runtime library */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3888
  if (colon == dst - 1) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3889
          path[2] = '.';
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3890
          path[3] = '\0';
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3891
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3892
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3893
  #ifdef DEBUG
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3894
    jio_fprintf(stderr, "sysNativePath: %s\n", path);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3895
  #endif DEBUG
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3896
  return path;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3897
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3898
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3899
// This code is a copy of JDK's sysSetLength
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3900
// from src/windows/hpi/src/sys_api_md.c
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3901
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3902
int os::ftruncate(int fd, jlong length) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3903
  HANDLE h = (HANDLE)::_get_osfhandle(fd);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3904
  long high = (long)(length >> 32);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3905
  DWORD ret;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3906
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3907
  if (h == (HANDLE)(-1)) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3908
    return -1;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3909
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3910
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3911
  ret = ::SetFilePointer(h, (long)(length), &high, FILE_BEGIN);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3912
  if ((ret == 0xFFFFFFFF) && (::GetLastError() != NO_ERROR)) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3913
      return -1;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3914
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3915
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3916
  if (::SetEndOfFile(h) == FALSE) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3917
    return -1;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3918
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3919
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3920
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3921
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3922
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3923
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3924
// This code is a copy of JDK's sysSync
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3925
// from src/windows/hpi/src/sys_api_md.c
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3926
// except for the legacy workaround for a bug in Win 98
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3927
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3928
int os::fsync(int fd) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3929
  HANDLE handle = (HANDLE)::_get_osfhandle(fd);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3930
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3931
  if ( (!::FlushFileBuffers(handle)) &&
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3932
         (GetLastError() != ERROR_ACCESS_DENIED) ) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3933
    /* from winerror.h */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3934
    return -1;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3935
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3936
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3937
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3938
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3939
static int nonSeekAvailable(int, long *);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3940
static int stdinAvailable(int, long *);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3941
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3942
#define S_ISCHR(mode)   (((mode) & _S_IFCHR) == _S_IFCHR)
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3943
#define S_ISFIFO(mode)  (((mode) & _S_IFIFO) == _S_IFIFO)
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3944
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3945
// This code is a copy of JDK's sysAvailable
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3946
// from src/windows/hpi/src/sys_api_md.c
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3947
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3948
int os::available(int fd, jlong *bytes) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3949
  jlong cur, end;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3950
  struct _stati64 stbuf64;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3951
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3952
  if (::_fstati64(fd, &stbuf64) >= 0) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3953
    int mode = stbuf64.st_mode;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3954
    if (S_ISCHR(mode) || S_ISFIFO(mode)) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3955
      int ret;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3956
      long lpbytes;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3957
      if (fd == 0) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3958
        ret = stdinAvailable(fd, &lpbytes);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3959
      } else {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3960
        ret = nonSeekAvailable(fd, &lpbytes);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3961
      }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3962
      (*bytes) = (jlong)(lpbytes);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3963
      return ret;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3964
    }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3965
    if ((cur = ::_lseeki64(fd, 0L, SEEK_CUR)) == -1) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3966
      return FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3967
    } else if ((end = ::_lseeki64(fd, 0L, SEEK_END)) == -1) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3968
      return FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3969
    } else if (::_lseeki64(fd, cur, SEEK_SET) == -1) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3970
      return FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3971
    }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3972
    *bytes = end - cur;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3973
    return TRUE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3974
  } else {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3975
    return FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3976
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3977
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3978
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3979
// This code is a copy of JDK's nonSeekAvailable
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3980
// from src/windows/hpi/src/sys_api_md.c
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3981
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3982
static int nonSeekAvailable(int fd, long *pbytes) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3983
  /* This is used for available on non-seekable devices
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3984
    * (like both named and anonymous pipes, such as pipes
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3985
    *  connected to an exec'd process).
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3986
    * Standard Input is a special case.
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3987
    *
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3988
    */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3989
  HANDLE han;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3990
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3991
  if ((han = (HANDLE) ::_get_osfhandle(fd)) == (HANDLE)(-1)) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3992
    return FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3993
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3994
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3995
  if (! ::PeekNamedPipe(han, NULL, 0, NULL, (LPDWORD)pbytes, NULL)) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3996
        /* PeekNamedPipe fails when at EOF.  In that case we
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3997
         * simply make *pbytes = 0 which is consistent with the
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3998
         * behavior we get on Solaris when an fd is at EOF.
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  3999
         * The only alternative is to raise an Exception,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4000
         * which isn't really warranted.
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4001
         */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4002
    if (::GetLastError() != ERROR_BROKEN_PIPE) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4003
      return FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4004
    }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4005
    *pbytes = 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4006
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4007
  return TRUE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4008
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4009
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4010
#define MAX_INPUT_EVENTS 2000
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4011
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4012
// This code is a copy of JDK's stdinAvailable
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4013
// from src/windows/hpi/src/sys_api_md.c
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4014
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4015
static int stdinAvailable(int fd, long *pbytes) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4016
  HANDLE han;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4017
  DWORD numEventsRead = 0;      /* Number of events read from buffer */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4018
  DWORD numEvents = 0;  /* Number of events in buffer */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4019
  DWORD i = 0;          /* Loop index */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4020
  DWORD curLength = 0;  /* Position marker */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4021
  DWORD actualLength = 0;       /* Number of bytes readable */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4022
  BOOL error = FALSE;         /* Error holder */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4023
  INPUT_RECORD *lpBuffer;     /* Pointer to records of input events */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4024
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4025
  if ((han = ::GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4026
        return FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4027
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4028
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4029
  /* Construct an array of input records in the console buffer */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4030
  error = ::GetNumberOfConsoleInputEvents(han, &numEvents);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4031
  if (error == 0) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4032
    return nonSeekAvailable(fd, pbytes);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4033
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4034
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4035
  /* lpBuffer must fit into 64K or else PeekConsoleInput fails */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4036
  if (numEvents > MAX_INPUT_EVENTS) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4037
    numEvents = MAX_INPUT_EVENTS;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4038
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4039
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4040
  lpBuffer = (INPUT_RECORD *)os::malloc(numEvents * sizeof(INPUT_RECORD));
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4041
  if (lpBuffer == NULL) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4042
    return FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4043
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4044
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4045
  error = ::PeekConsoleInput(han, lpBuffer, numEvents, &numEventsRead);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4046
  if (error == 0) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4047
    os::free(lpBuffer);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4048
    return FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4049
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4050
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4051
  /* Examine input records for the number of bytes available */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4052
  for(i=0; i<numEvents; i++) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4053
    if (lpBuffer[i].EventType == KEY_EVENT) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4054
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4055
      KEY_EVENT_RECORD *keyRecord = (KEY_EVENT_RECORD *)
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4056
                                      &(lpBuffer[i].Event);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4057
      if (keyRecord->bKeyDown == TRUE) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4058
        CHAR *keyPressed = (CHAR *) &(keyRecord->uChar);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4059
        curLength++;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4060
        if (*keyPressed == '\r') {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4061
          actualLength = curLength;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4062
        }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4063
      }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4064
    }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4065
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4066
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4067
  if(lpBuffer != NULL) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4068
    os::free(lpBuffer);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4069
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4070
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4071
  *pbytes = (long) actualLength;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4072
  return TRUE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4073
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4074
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4075
// Map a block of memory.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4076
char* os::map_memory(int fd, const char* file_name, size_t file_offset,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4077
                     char *addr, size_t bytes, bool read_only,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4078
                     bool allow_exec) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4079
  HANDLE hFile;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4080
  char* base;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4081
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4082
  hFile = CreateFile(file_name, GENERIC_READ, FILE_SHARE_READ, NULL,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4083
                     OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4084
  if (hFile == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4085
    if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4086
      DWORD err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4087
      tty->print_cr("CreateFile() failed: GetLastError->%ld.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4088
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4089
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4090
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4091
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4092
  if (allow_exec) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4093
    // CreateFileMapping/MapViewOfFileEx can't map executable memory
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4094
    // unless it comes from a PE image (which the shared archive is not.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4095
    // Even VirtualProtect refuses to give execute access to mapped memory
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4096
    // that was not previously executable.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4097
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4098
    // Instead, stick the executable region in anonymous memory.  Yuck.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4099
    // Penalty is that ~4 pages will not be shareable - in the future
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4100
    // we might consider DLLizing the shared archive with a proper PE
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4101
    // header so that mapping executable + sharing is possible.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4102
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4103
    base = (char*) VirtualAlloc(addr, bytes, MEM_COMMIT | MEM_RESERVE,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4104
                                PAGE_READWRITE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4105
    if (base == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4106
      if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4107
        DWORD err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4108
        tty->print_cr("VirtualAlloc() failed: GetLastError->%ld.", err);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4109
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4110
      CloseHandle(hFile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4111
      return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4112
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4113
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4114
    DWORD bytes_read;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4115
    OVERLAPPED overlapped;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4116
    overlapped.Offset = (DWORD)file_offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4117
    overlapped.OffsetHigh = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4118
    overlapped.hEvent = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4119
    // ReadFile guarantees that if the return value is true, the requested
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4120
    // number of bytes were read before returning.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4121
    bool res = ReadFile(hFile, base, (DWORD)bytes, &bytes_read, &overlapped) != 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4122
    if (!res) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4123
      if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4124
        DWORD err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4125
        tty->print_cr("ReadFile() failed: GetLastError->%ld.", err);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4126
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4127
      release_memory(base, bytes);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4128
      CloseHandle(hFile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4129
      return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4130
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4131
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4132
    HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_WRITECOPY, 0, 0,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4133
                                    NULL /*file_name*/);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4134
    if (hMap == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4135
      if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4136
        DWORD err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4137
        tty->print_cr("CreateFileMapping() failed: GetLastError->%ld.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4138
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4139
      CloseHandle(hFile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4140
      return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4141
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4142
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4143
    DWORD access = read_only ? FILE_MAP_READ : FILE_MAP_COPY;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4144
    base = (char*)MapViewOfFileEx(hMap, access, 0, (DWORD)file_offset,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4145
                                  (DWORD)bytes, addr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4146
    if (base == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4147
      if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4148
        DWORD err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4149
        tty->print_cr("MapViewOfFileEx() failed: GetLastError->%ld.", err);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4150
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4151
      CloseHandle(hMap);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4152
      CloseHandle(hFile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4153
      return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4154
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4155
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4156
    if (CloseHandle(hMap) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4157
      if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4158
        DWORD err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4159
        tty->print_cr("CloseHandle(hMap) failed: GetLastError->%ld.", err);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4160
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4161
      CloseHandle(hFile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4162
      return base;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4163
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4164
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4165
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4166
  if (allow_exec) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4167
    DWORD old_protect;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4168
    DWORD exec_access = read_only ? PAGE_EXECUTE_READ : PAGE_EXECUTE_READWRITE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4169
    bool res = VirtualProtect(base, bytes, exec_access, &old_protect) != 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4170
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4171
    if (!res) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4172
      if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4173
        DWORD err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4174
        tty->print_cr("VirtualProtect() failed: GetLastError->%ld.", err);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4175
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4176
      // Don't consider this a hard error, on IA32 even if the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4177
      // VirtualProtect fails, we should still be able to execute
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4178
      CloseHandle(hFile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4179
      return base;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4180
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4181
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4182
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4183
  if (CloseHandle(hFile) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4184
    if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4185
      DWORD err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4186
      tty->print_cr("CloseHandle(hFile) failed: GetLastError->%ld.", err);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4187
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4188
    return base;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4189
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4190
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4191
  return base;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4192
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4193
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4194
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4195
// Remap a block of memory.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4196
char* os::remap_memory(int fd, const char* file_name, size_t file_offset,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4197
                       char *addr, size_t bytes, bool read_only,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4198
                       bool allow_exec) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4199
  // This OS does not allow existing memory maps to be remapped so we
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4200
  // have to unmap the memory before we remap it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4201
  if (!os::unmap_memory(addr, bytes)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4202
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4203
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4204
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4205
  // There is a very small theoretical window between the unmap_memory()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4206
  // call above and the map_memory() call below where a thread in native
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4207
  // code may be able to access an address that is no longer mapped.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4208
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4209
  return os::map_memory(fd, file_name, file_offset, addr, bytes, read_only,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4210
                        allow_exec);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4211
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4212
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4213
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4214
// Unmap a block of memory.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4215
// Returns true=success, otherwise false.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4216
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4217
bool os::unmap_memory(char* addr, size_t bytes) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4218
  BOOL result = UnmapViewOfFile(addr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4219
  if (result == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4220
    if (PrintMiscellaneous && Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4221
      DWORD err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4222
      tty->print_cr("UnmapViewOfFile() failed: GetLastError->%ld.", err);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4223
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4224
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4225
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4226
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4227
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4228
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4229
void os::pause() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4230
  char filename[MAX_PATH];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4231
  if (PauseAtStartupFile && PauseAtStartupFile[0]) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4232
    jio_snprintf(filename, MAX_PATH, PauseAtStartupFile);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4233
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4234
    jio_snprintf(filename, MAX_PATH, "./vm.paused.%d", current_process_id());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4235
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4236
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4237
  int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4238
  if (fd != -1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4239
    struct stat buf;
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4240
    ::close(fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4241
    while (::stat(filename, &buf) == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4242
      Sleep(100);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4243
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4244
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4245
    jio_fprintf(stderr,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4246
      "Could not open pause file '%s', continuing immediately.\n", filename);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4247
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4248
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4249
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4250
// An Event wraps a win32 "CreateEvent" kernel handle.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4251
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4252
// We have a number of choices regarding "CreateEvent" win32 handle leakage:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4253
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4254
// 1:  When a thread dies return the Event to the EventFreeList, clear the ParkHandle
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4255
//     field, and call CloseHandle() on the win32 event handle.  Unpark() would
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4256
//     need to be modified to tolerate finding a NULL (invalid) win32 event handle.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4257
//     In addition, an unpark() operation might fetch the handle field, but the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4258
//     event could recycle between the fetch and the SetEvent() operation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4259
//     SetEvent() would either fail because the handle was invalid, or inadvertently work,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4260
//     as the win32 handle value had been recycled.  In an ideal world calling SetEvent()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4261
//     on an stale but recycled handle would be harmless, but in practice this might
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4262
//     confuse other non-Sun code, so it's not a viable approach.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4263
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4264
// 2:  Once a win32 event handle is associated with an Event, it remains associated
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4265
//     with the Event.  The event handle is never closed.  This could be construed
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4266
//     as handle leakage, but only up to the maximum # of threads that have been extant
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4267
//     at any one time.  This shouldn't be an issue, as windows platforms typically
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4268
//     permit a process to have hundreds of thousands of open handles.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4269
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4270
// 3:  Same as (1), but periodically, at stop-the-world time, rundown the EventFreeList
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4271
//     and release unused handles.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4272
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4273
// 4:  Add a CRITICAL_SECTION to the Event to protect LD+SetEvent from LD;ST(null);CloseHandle.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4274
//     It's not clear, however, that we wouldn't be trading one type of leak for another.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4275
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4276
// 5.  Use an RCU-like mechanism (Read-Copy Update).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4277
//     Or perhaps something similar to Maged Michael's "Hazard pointers".
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4278
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4279
// We use (2).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4280
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4281
// TODO-FIXME:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4282
// 1.  Reconcile Doug's JSR166 j.u.c park-unpark with the objectmonitor implementation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4283
// 2.  Consider wrapping the WaitForSingleObject(Ex) calls in SEH try/finally blocks
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4284
//     to recover from (or at least detect) the dreaded Windows 841176 bug.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4285
// 3.  Collapse the interrupt_event, the JSR166 parker event, and the objectmonitor ParkEvent
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4286
//     into a single win32 CreateEvent() handle.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4287
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4288
// _Event transitions in park()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4289
//   -1 => -1 : illegal
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4290
//    1 =>  0 : pass - return immediately
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4291
//    0 => -1 : block
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4292
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4293
// _Event serves as a restricted-range semaphore :
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4294
//    -1 : thread is blocked
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4295
//     0 : neutral  - thread is running or ready
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4296
//     1 : signaled - thread is running or ready
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4297
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4298
// Another possible encoding of _Event would be
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4299
// with explicit "PARKED" and "SIGNALED" bits.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4300
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4301
int os::PlatformEvent::park (jlong Millis) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4302
    guarantee (_ParkHandle != NULL , "Invariant") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4303
    guarantee (Millis > 0          , "Invariant") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4304
    int v ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4305
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4306
    // CONSIDER: defer assigning a CreateEvent() handle to the Event until
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4307
    // the initial park() operation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4308
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4309
    for (;;) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4310
        v = _Event ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4311
        if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4312
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4313
    guarantee ((v == 0) || (v == 1), "invariant") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4314
    if (v != 0) return OS_OK ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4315
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4316
    // Do this the hard way by blocking ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4317
    // TODO: consider a brief spin here, gated on the success of recent
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4318
    // spin attempts by this thread.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4319
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4320
    // We decompose long timeouts into series of shorter timed waits.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4321
    // Evidently large timo values passed in WaitForSingleObject() are problematic on some
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4322
    // versions of Windows.  See EventWait() for details.  This may be superstition.  Or not.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4323
    // We trust the WAIT_TIMEOUT indication and don't track the elapsed wait time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4324
    // with os::javaTimeNanos().  Furthermore, we assume that spurious returns from
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4325
    // ::WaitForSingleObject() caused by latent ::setEvent() operations will tend
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4326
    // to happen early in the wait interval.  Specifically, after a spurious wakeup (rv ==
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4327
    // WAIT_OBJECT_0 but _Event is still < 0) we don't bother to recompute Millis to compensate
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4328
    // for the already waited time.  This policy does not admit any new outcomes.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4329
    // In the future, however, we might want to track the accumulated wait time and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4330
    // adjust Millis accordingly if we encounter a spurious wakeup.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4331
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4332
    const int MAXTIMEOUT = 0x10000000 ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4333
    DWORD rv = WAIT_TIMEOUT ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4334
    while (_Event < 0 && Millis > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4335
       DWORD prd = Millis ;     // set prd = MAX (Millis, MAXTIMEOUT)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4336
       if (Millis > MAXTIMEOUT) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4337
          prd = MAXTIMEOUT ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4338
       }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4339
       rv = ::WaitForSingleObject (_ParkHandle, prd) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4340
       assert (rv == WAIT_OBJECT_0 || rv == WAIT_TIMEOUT, "WaitForSingleObject failed") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4341
       if (rv == WAIT_TIMEOUT) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4342
           Millis -= prd ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4343
       }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4344
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4345
    v = _Event ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4346
    _Event = 0 ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4347
    OrderAccess::fence() ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4348
    // If we encounter a nearly simultanous timeout expiry and unpark()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4349
    // we return OS_OK indicating we awoke via unpark().
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4350
    // Implementor's license -- returning OS_TIMEOUT would be equally valid, however.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4351
    return (v >= 0) ? OS_OK : OS_TIMEOUT ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4352
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4353
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4354
void os::PlatformEvent::park () {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4355
    guarantee (_ParkHandle != NULL, "Invariant") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4356
    // Invariant: Only the thread associated with the Event/PlatformEvent
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4357
    // may call park().
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4358
    int v ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4359
    for (;;) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4360
        v = _Event ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4361
        if (Atomic::cmpxchg (v-1, &_Event, v) == v) break ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4362
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4363
    guarantee ((v == 0) || (v == 1), "invariant") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4364
    if (v != 0) return ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4365
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4366
    // Do this the hard way by blocking ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4367
    // TODO: consider a brief spin here, gated on the success of recent
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4368
    // spin attempts by this thread.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4369
    while (_Event < 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4370
       DWORD rv = ::WaitForSingleObject (_ParkHandle, INFINITE) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4371
       assert (rv == WAIT_OBJECT_0, "WaitForSingleObject failed") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4372
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4373
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4374
    // Usually we'll find _Event == 0 at this point, but as
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4375
    // an optional optimization we clear it, just in case can
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4376
    // multiple unpark() operations drove _Event up to 1.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4377
    _Event = 0 ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4378
    OrderAccess::fence() ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4379
    guarantee (_Event >= 0, "invariant") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4380
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4381
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4382
void os::PlatformEvent::unpark() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4383
  guarantee (_ParkHandle != NULL, "Invariant") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4384
  int v ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4385
  for (;;) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4386
      v = _Event ;      // Increment _Event if it's < 1.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4387
      if (v > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4388
         // If it's already signaled just return.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4389
         // The LD of _Event could have reordered or be satisfied
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4390
         // by a read-aside from this processor's write buffer.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4391
         // To avoid problems execute a barrier and then
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4392
         // ratify the value.  A degenerate CAS() would also work.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4393
         // Viz., CAS (v+0, &_Event, v) == v).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4394
         OrderAccess::fence() ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4395
         if (_Event == v) return ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4396
         continue ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4397
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4398
      if (Atomic::cmpxchg (v+1, &_Event, v) == v) break ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4399
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4400
  if (v < 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4401
     ::SetEvent (_ParkHandle) ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4402
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4403
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4404
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4405
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4406
// JSR166
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4407
// -------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4408
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4409
/*
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4410
 * The Windows implementation of Park is very straightforward: Basic
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4411
 * operations on Win32 Events turn out to have the right semantics to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4412
 * use them directly. We opportunistically resuse the event inherited
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4413
 * from Monitor.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4414
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4415
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4416
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4417
void Parker::park(bool isAbsolute, jlong time) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4418
  guarantee (_ParkEvent != NULL, "invariant") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4419
  // First, demultiplex/decode time arguments
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4420
  if (time < 0) { // don't wait
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4421
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4422
  }
6962
d49132ce025b 6763959: java.util.concurrent.locks.LockSupport.parkUntil(0) blocks forever
acorn
parents: 6176
diff changeset
  4423
  else if (time == 0 && !isAbsolute) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4424
    time = INFINITE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4425
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4426
  else if  (isAbsolute) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4427
    time -= os::javaTimeMillis(); // convert to relative time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4428
    if (time <= 0) // already elapsed
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4429
      return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4430
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4431
  else { // relative
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4432
    time /= 1000000; // Must coarsen from nanos to millis
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4433
    if (time == 0)   // Wait for the minimal time unit if zero
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4434
      time = 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4435
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4436
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4437
  JavaThread* thread = (JavaThread*)(Thread::current());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4438
  assert(thread->is_Java_thread(), "Must be JavaThread");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4439
  JavaThread *jt = (JavaThread *)thread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4440
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4441
  // Don't wait if interrupted or already triggered
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4442
  if (Thread::is_interrupted(thread, false) ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4443
    WaitForSingleObject(_ParkEvent, 0) == WAIT_OBJECT_0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4444
    ResetEvent(_ParkEvent);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4445
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4446
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4447
  else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4448
    ThreadBlockInVM tbivm(jt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4449
    OSThreadWaitState osts(thread->osthread(), false /* not Object.wait() */);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4450
    jt->set_suspend_equivalent();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4451
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4452
    WaitForSingleObject(_ParkEvent,  time);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4453
    ResetEvent(_ParkEvent);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4454
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4455
    // If externally suspended while waiting, re-suspend
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4456
    if (jt->handle_special_suspend_equivalent_condition()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4457
      jt->java_suspend_self();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4458
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4459
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4460
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4461
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4462
void Parker::unpark() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4463
  guarantee (_ParkEvent != NULL, "invariant") ;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4464
  SetEvent(_ParkEvent);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4465
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4466
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4467
// Run the specified command in a separate process. Return its exit value,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4468
// or -1 on failure (e.g. can't create a new process).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4469
int os::fork_and_exec(char* cmd) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4470
  STARTUPINFO si;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4471
  PROCESS_INFORMATION pi;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4472
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4473
  memset(&si, 0, sizeof(si));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4474
  si.cb = sizeof(si);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4475
  memset(&pi, 0, sizeof(pi));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4476
  BOOL rslt = CreateProcess(NULL,   // executable name - use command line
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4477
                            cmd,    // command line
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4478
                            NULL,   // process security attribute
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4479
                            NULL,   // thread security attribute
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4480
                            TRUE,   // inherits system handles
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4481
                            0,      // no creation flags
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4482
                            NULL,   // use parent's environment block
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4483
                            NULL,   // use parent's starting directory
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4484
                            &si,    // (in) startup information
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4485
                            &pi);   // (out) process information
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4486
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4487
  if (rslt) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4488
    // Wait until child process exits.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4489
    WaitForSingleObject(pi.hProcess, INFINITE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4490
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4491
    DWORD exit_code;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4492
    GetExitCodeProcess(pi.hProcess, &exit_code);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4493
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4494
    // Close process and thread handles.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4495
    CloseHandle(pi.hProcess);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4496
    CloseHandle(pi.hThread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4497
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4498
    return (int)exit_code;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4499
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4500
    return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4501
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4502
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4503
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4504
//--------------------------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4505
// Non-product code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4506
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4507
static int mallocDebugIntervalCounter = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4508
static int mallocDebugCounter = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4509
bool os::check_heap(bool force) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4510
  if (++mallocDebugCounter < MallocVerifyStart && !force) return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4511
  if (++mallocDebugIntervalCounter >= MallocVerifyInterval || force) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4512
    // Note: HeapValidate executes two hardware breakpoints when it finds something
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4513
    // wrong; at these points, eax contains the address of the offending block (I think).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4514
    // To get to the exlicit error message(s) below, just continue twice.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4515
    HANDLE heap = GetProcessHeap();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4516
    { HeapLock(heap);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4517
      PROCESS_HEAP_ENTRY phe;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4518
      phe.lpData = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4519
      while (HeapWalk(heap, &phe) != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4520
        if ((phe.wFlags & PROCESS_HEAP_ENTRY_BUSY) &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4521
            !HeapValidate(heap, 0, phe.lpData)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4522
          tty->print_cr("C heap has been corrupted (time: %d allocations)", mallocDebugCounter);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4523
          tty->print_cr("corrupted block near address %#x, length %d", phe.lpData, phe.cbData);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4524
          fatal("corrupted C heap");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4525
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4526
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4527
      int err = GetLastError();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4528
      if (err != ERROR_NO_MORE_ITEMS && err != ERROR_CALL_NOT_IMPLEMENTED) {
5403
6b0dd9c75dde 6888954: argument formatting for assert() and friends
jcoomes
parents: 5237
diff changeset
  4529
        fatal(err_msg("heap walk aborted with error %d", err));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4530
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4531
      HeapUnlock(heap);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4532
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4533
    mallocDebugIntervalCounter = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4534
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4535
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4536
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4537
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4538
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
  4539
bool os::find(address addr, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4540
  // Nothing yet
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4541
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4542
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4543
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4544
LONG WINAPI os::win32::serialize_fault_filter(struct _EXCEPTION_POINTERS* e) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4545
  DWORD exception_code = e->ExceptionRecord->ExceptionCode;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4546
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4547
  if ( exception_code == EXCEPTION_ACCESS_VIOLATION ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4548
    JavaThread* thread = (JavaThread*)ThreadLocalStorage::get_thread_slow();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4549
    PEXCEPTION_RECORD exceptionRecord = e->ExceptionRecord;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4550
    address addr = (address) exceptionRecord->ExceptionInformation[1];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4551
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4552
    if (os::is_memory_serialize_page(thread, addr))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4553
      return EXCEPTION_CONTINUE_EXECUTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4554
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4555
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4556
  return EXCEPTION_CONTINUE_SEARCH;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4557
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4558
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4559
static int getLastErrorString(char *buf, size_t len)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4560
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4561
    long errval;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4562
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4563
    if ((errval = GetLastError()) != 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4564
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4565
      /* DOS error */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4566
      size_t n = (size_t)FormatMessage(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4567
            FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4568
            NULL,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4569
            errval,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4570
            0,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4571
            buf,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4572
            (DWORD)len,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4573
            NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4574
      if (n > 3) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4575
        /* Drop final '.', CR, LF */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4576
        if (buf[n - 1] == '\n') n--;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4577
        if (buf[n - 1] == '\r') n--;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4578
        if (buf[n - 1] == '.') n--;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4579
        buf[n] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4580
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4581
      return (int)n;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4582
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4583
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4584
    if (errno != 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4585
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4586
      /* C runtime error that has no corresponding DOS error code */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4587
      const char *s = strerror(errno);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4588
      size_t n = strlen(s);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4589
      if (n >= len) n = len - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4590
      strncpy(buf, s, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4591
      buf[n] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4592
      return (int)n;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4593
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4594
    return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  4595
}
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
  4596
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
  4597
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
  4598
// We don't build a headless jre for Windows
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
  4599
bool os::is_headless_jre() { return false; }
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
  4600
7405
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4601
// OS_SocketInterface
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4602
// Not used on Windows
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4603
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4604
// OS_SocketInterface
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4605
typedef struct hostent * (PASCAL FAR *ws2_ifn_ptr_t)(...);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4606
ws2_ifn_ptr_t *get_host_by_name_fn = NULL;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4607
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4608
typedef CRITICAL_SECTION mutex_t;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4609
#define mutexInit(m)    InitializeCriticalSection(m)
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4610
#define mutexDestroy(m) DeleteCriticalSection(m)
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4611
#define mutexLock(m)    EnterCriticalSection(m)
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4612
#define mutexUnlock(m)  LeaveCriticalSection(m)
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4613
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4614
static bool sockfnptrs_initialized = FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4615
static mutex_t sockFnTableMutex;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4616
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4617
/* is Winsock2 loaded? better to be explicit than to rely on sockfnptrs */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4618
static bool winsock2Available = FALSE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4619
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4620
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4621
static void initSockFnTable() {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4622
  int (PASCAL FAR* WSAStartupPtr)(WORD, LPWSADATA);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4623
  WSADATA wsadata;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4624
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4625
  ::mutexInit(&sockFnTableMutex);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4626
  ::mutexLock(&sockFnTableMutex);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4627
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4628
  if (sockfnptrs_initialized == FALSE) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4629
        HMODULE hWinsock;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4630
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4631
          /* try to load Winsock2, and if that fails, load Winsock */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4632
    hWinsock = ::LoadLibrary("ws2_32.dll");
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4633
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4634
    if (hWinsock == NULL) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4635
      jio_fprintf(stderr, "Could not load Winsock 2 (error: %d)\n",
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4636
      ::GetLastError());
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4637
      return;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4638
    }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4639
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4640
    /* If we loaded a DLL, then we might as well initialize it.  */
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4641
    WSAStartupPtr = (int (PASCAL FAR *)(WORD, LPWSADATA))
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4642
    ::GetProcAddress(hWinsock, "WSAStartup");
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4643
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4644
    if (WSAStartupPtr(MAKEWORD(1,1), &wsadata) != 0) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4645
        jio_fprintf(stderr, "Could not initialize Winsock\n");
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4646
    }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4647
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4648
    get_host_by_name_fn
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4649
        = (ws2_ifn_ptr_t*) GetProcAddress(hWinsock, "gethostbyname");
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4650
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4651
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4652
  assert(get_host_by_name_fn != NULL,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4653
    "gethostbyname function not found");
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4654
  sockfnptrs_initialized = TRUE;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4655
  ::mutexUnlock(&sockFnTableMutex);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4656
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4657
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4658
struct hostent*  os::get_host_by_name(char* name) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4659
  if (!sockfnptrs_initialized) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4660
    initSockFnTable();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4661
  }
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4662
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4663
  assert(sockfnptrs_initialized == TRUE && get_host_by_name_fn != NULL,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4664
    "sockfnptrs is not initialized or pointer to gethostbyname function is NULL");
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4665
  return (*get_host_by_name_fn)(name);
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4666
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4667
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4668
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4669
int os::socket_close(int fd) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4670
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4671
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4672
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4673
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4674
int os::socket_available(int fd, jint *pbytes) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4675
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4676
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4677
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4678
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4679
int os::socket(int domain, int type, int protocol) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4680
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4681
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4682
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4683
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4684
int os::listen(int fd, int count) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4685
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4686
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4687
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4688
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4689
int os::connect(int fd, struct sockaddr *him, int len) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4690
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4691
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4692
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4693
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4694
int os::accept(int fd, struct sockaddr *him, int *len) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4695
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4696
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4697
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4698
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4699
int os::sendto(int fd, char *buf, int len, int flags,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4700
                        struct sockaddr *to, int tolen) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4701
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4702
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4703
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4704
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4705
int os::recvfrom(int fd, char *buf, int nBytes, int flags,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4706
                         sockaddr *from, int *fromlen) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4707
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4708
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4709
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4710
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4711
int os::recv(int fd, char *buf, int nBytes, int flags) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4712
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4713
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4714
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4715
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4716
int os::send(int fd, char *buf, int nBytes, int flags) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4717
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4718
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4719
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4720
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4721
int os::raw_send(int fd, char *buf, int nBytes, int flags) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4722
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4723
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4724
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4725
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4726
int os::timeout(int fd, long timeout) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4727
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4728
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4729
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4730
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4731
int os::get_host_name(char* name, int namelen) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4732
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4733
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4734
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4735
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4736
int os::socket_shutdown(int fd, int howto) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4737
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4738
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4739
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4740
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4741
int os::bind(int fd, struct sockaddr *him, int len) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4742
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4743
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4744
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4745
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4746
int os::get_sock_name(int fd, struct sockaddr *him, int *len) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4747
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4748
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4749
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4750
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4751
int os::get_sock_opt(int fd, int level, int optname,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4752
                             char *optval, int* optlen) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4753
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4754
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4755
}
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4756
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4757
int os::set_sock_opt(int fd, int level, int optname,
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4758
                             const char *optval, int optlen) {
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4759
  ShouldNotReachHere();
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4760
  return 0;
e6fc8d3926f8 6348631: remove the use of the HPI library from Hotspot
ikrylov
parents: 7397
diff changeset
  4761
}