Mercurial > hg > truffle
annotate src/os/windows/vm/os_windows.hpp @ 21408:32ca2353accf
Truffle/Instrumentation: fix NPE hazard
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Sun, 17 May 2015 20:47:04 -0700 |
parents | 7848fc12602b |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef OS_WINDOWS_VM_OS_WINDOWS_HPP |
26 #define OS_WINDOWS_VM_OS_WINDOWS_HPP | |
0 | 27 // Win32_OS defines the interface to windows operating systems |
28 | |
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29 // Information about the protection of the page at address '0' on this os. |
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30 static bool zero_page_read_protected() { return true; } |
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31 |
0 | 32 class win32 { |
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33 friend class os; |
0 | 34 |
35 protected: | |
36 static int _vm_page_size; | |
37 static int _vm_allocation_granularity; | |
38 static int _processor_type; | |
39 static int _processor_level; | |
40 static julong _physical_memory; | |
41 static size_t _default_stack_size; | |
42 static bool _is_nt; | |
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43 static bool _is_windows_2003; |
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44 static bool _is_windows_server; |
0 | 45 |
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46 static void print_windows_version(outputStream* st); |
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47 |
0 | 48 public: |
49 // Windows-specific interface: | |
50 static void initialize_system_info(); | |
51 static void setmode_streams(); | |
52 | |
53 // Processor info as provided by NT | |
54 static int processor_type() { return _processor_type; } | |
55 // Processor level may not be accurate on non-NT systems | |
56 static int processor_level() { | |
57 assert(is_nt(), "use vm_version instead"); | |
58 return _processor_level; | |
59 } | |
60 static julong available_memory(); | |
61 static julong physical_memory() { return _physical_memory; } | |
62 | |
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63 // load dll from Windows system directory or Windows directory |
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64 static HINSTANCE load_Windows_dll(const char* name, char *ebuf, int ebuflen); |
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65 |
0 | 66 public: |
67 // Generic interface: | |
68 | |
69 // Trace number of created threads | |
70 static intx _os_thread_limit; | |
71 static volatile intx _os_thread_count; | |
72 | |
73 // Tells whether the platform is NT or Windown95 | |
74 static bool is_nt() { return _is_nt; } | |
75 | |
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76 // Tells whether this is a server version of Windows |
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77 static bool is_windows_server() { return _is_windows_server; } |
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78 |
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79 // Tells whether the platform is Windows 2003 |
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80 static bool is_windows_2003() { return _is_windows_2003; } |
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81 |
0 | 82 // Returns the byte size of a virtual memory page |
83 static int vm_page_size() { return _vm_page_size; } | |
84 | |
85 // Returns the size in bytes of memory blocks which can be allocated. | |
86 static int vm_allocation_granularity() { return _vm_allocation_granularity; } | |
87 | |
88 // Read the headers for the executable that started the current process into | |
89 // the structure passed in (see winnt.h). | |
90 static void read_executable_headers(PIMAGE_NT_HEADERS); | |
91 | |
92 // Default stack size for the current process. | |
93 static size_t default_stack_size() { return _default_stack_size; } | |
94 | |
95 #ifndef _WIN64 | |
96 // A wrapper to install a structured exception handler for fast JNI accesors. | |
97 static address fast_jni_accessor_wrapper(BasicType); | |
98 #endif | |
99 | |
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100 static void call_test_func_with_wrapper(void (*funcPtr)(void)); |
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101 |
0 | 102 // filter function to ignore faults on serializations page |
103 static LONG WINAPI serialize_fault_filter(struct _EXCEPTION_POINTERS* e); | |
104 }; | |
105 | |
11151 | 106 /* |
107 * Crash protection for the watcher thread. Wrap the callback | |
108 * with a __try { call() } | |
109 * To be able to use this - don't take locks, don't rely on destructors, | |
110 * don't make OS library calls, don't allocate memory, don't print, | |
111 * don't call code that could leave the heap / memory in an inconsistent state, | |
112 * or anything else where we are not in control if we suddenly jump out. | |
113 */ | |
114 class WatcherThreadCrashProtection : public StackObj { | |
115 public: | |
116 WatcherThreadCrashProtection(); | |
117 bool call(os::CrashProtectionCallback& cb); | |
118 }; | |
119 | |
6197 | 120 class PlatformEvent : public CHeapObj<mtInternal> { |
0 | 121 private: |
122 double CachePad [4] ; // increase odds that _Event is sole occupant of cache line | |
123 volatile int _Event ; | |
124 HANDLE _ParkHandle ; | |
125 | |
126 public: // TODO-FIXME: make dtor private | |
127 ~PlatformEvent() { guarantee (0, "invariant") ; } | |
128 | |
129 public: | |
130 PlatformEvent() { | |
131 _Event = 0 ; | |
132 _ParkHandle = CreateEvent (NULL, false, false, NULL) ; | |
133 guarantee (_ParkHandle != NULL, "invariant") ; | |
134 } | |
135 | |
136 // Exercise caution using reset() and fired() - they may require MEMBARs | |
137 void reset() { _Event = 0 ; } | |
138 int fired() { return _Event; } | |
139 void park () ; | |
140 void unpark () ; | |
141 int park (jlong millis) ; | |
142 } ; | |
143 | |
144 | |
145 | |
6197 | 146 class PlatformParker : public CHeapObj<mtInternal> { |
0 | 147 protected: |
148 HANDLE _ParkEvent ; | |
149 | |
150 public: | |
151 ~PlatformParker () { guarantee (0, "invariant") ; } | |
152 PlatformParker () { | |
153 _ParkEvent = CreateEvent (NULL, true, false, NULL) ; | |
154 guarantee (_ParkEvent != NULL, "invariant") ; | |
155 } | |
156 | |
157 } ; | |
1972 | 158 |
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159 // JDK7 requires VS2010 |
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160 #if _MSC_VER < 1600 |
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161 #define JDK6_OR_EARLIER 1 |
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162 #endif |
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163 |
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164 |
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165 |
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166 class WinSock2Dll: AllStatic { |
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167 public: |
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168 static BOOL WSAStartup(WORD, LPWSADATA); |
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169 static struct hostent* gethostbyname(const char *name); |
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170 static BOOL WinSock2Available(); |
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171 #ifdef JDK6_OR_EARLIER |
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172 private: |
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173 static int (PASCAL FAR* _WSAStartup)(WORD, LPWSADATA); |
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174 static struct hostent *(PASCAL FAR *_gethostbyname)(...); |
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175 static BOOL initialized; |
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176 |
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177 static void initialize(); |
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178 #endif |
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179 }; |
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180 |
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181 class Kernel32Dll: AllStatic { |
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182 public: |
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183 static BOOL SwitchToThread(); |
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184 static SIZE_T GetLargePageMinimum(); |
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185 |
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186 static BOOL SwitchToThreadAvailable(); |
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187 static BOOL GetLargePageMinimumAvailable(); |
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188 |
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189 // Help tools |
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190 static BOOL HelpToolsAvailable(); |
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191 static HANDLE CreateToolhelp32Snapshot(DWORD,DWORD); |
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192 static BOOL Module32First(HANDLE,LPMODULEENTRY32); |
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193 static BOOL Module32Next(HANDLE,LPMODULEENTRY32); |
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194 |
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195 static void GetNativeSystemInfo(LPSYSTEM_INFO); |
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196 |
3885 | 197 // NUMA calls |
198 static BOOL NumaCallsAvailable(); | |
199 static LPVOID VirtualAllocExNuma(HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); | |
200 static BOOL GetNumaHighestNodeNumber(PULONG); | |
201 static BOOL GetNumaNodeProcessorMask(UCHAR, PULONGLONG); | |
202 | |
6197 | 203 // Stack walking |
204 static USHORT RtlCaptureStackBackTrace(ULONG, ULONG, PVOID*, PULONG); | |
205 | |
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206 private: |
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207 // GetLargePageMinimum available on Windows Vista/Windows Server 2003 |
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208 // and later |
3885 | 209 // NUMA calls available Windows Vista/WS2008 and later |
210 | |
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211 static SIZE_T (WINAPI *_GetLargePageMinimum)(void); |
3885 | 212 static LPVOID (WINAPI *_VirtualAllocExNuma) (HANDLE, LPVOID, SIZE_T, DWORD, DWORD, DWORD); |
213 static BOOL (WINAPI *_GetNumaHighestNodeNumber) (PULONG); | |
214 static BOOL (WINAPI *_GetNumaNodeProcessorMask) (UCHAR, PULONGLONG); | |
6197 | 215 static USHORT (WINAPI *_RtlCaptureStackBackTrace)(ULONG, ULONG, PVOID*, PULONG); |
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216 static BOOL initialized; |
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217 |
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218 static void initialize(); |
3885 | 219 static void initializeCommon(); |
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220 |
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221 #ifdef JDK6_OR_EARLIER |
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222 private: |
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223 static BOOL (WINAPI *_SwitchToThread)(void); |
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224 static HANDLE (WINAPI* _CreateToolhelp32Snapshot)(DWORD,DWORD); |
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225 static BOOL (WINAPI* _Module32First)(HANDLE,LPMODULEENTRY32); |
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226 static BOOL (WINAPI* _Module32Next)(HANDLE,LPMODULEENTRY32); |
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227 static void (WINAPI *_GetNativeSystemInfo)(LPSYSTEM_INFO); |
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228 #endif |
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229 |
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230 }; |
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231 |
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232 class Advapi32Dll: AllStatic { |
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233 public: |
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234 static BOOL AdjustTokenPrivileges(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
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235 static BOOL OpenProcessToken(HANDLE, DWORD, PHANDLE); |
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236 static BOOL LookupPrivilegeValue(LPCTSTR, LPCTSTR, PLUID); |
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237 |
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238 static BOOL AdvapiAvailable(); |
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239 |
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240 #ifdef JDK6_OR_EARLIER |
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241 private: |
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242 static BOOL (WINAPI *_AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES, DWORD, PTOKEN_PRIVILEGES, PDWORD); |
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243 static BOOL (WINAPI *_OpenProcessToken)(HANDLE, DWORD, PHANDLE); |
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244 static BOOL (WINAPI *_LookupPrivilegeValue)(LPCTSTR, LPCTSTR, PLUID); |
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245 static BOOL initialized; |
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246 |
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247 static void initialize(); |
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248 #endif |
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249 }; |
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250 |
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251 class PSApiDll: AllStatic { |
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252 public: |
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253 static BOOL EnumProcessModules(HANDLE, HMODULE *, DWORD, LPDWORD); |
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254 static DWORD GetModuleFileNameEx(HANDLE, HMODULE, LPTSTR, DWORD); |
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255 static BOOL GetModuleInformation(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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256 |
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257 static BOOL PSApiAvailable(); |
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258 |
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259 #ifdef JDK6_OR_EARLIER |
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260 private: |
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261 static BOOL (WINAPI *_EnumProcessModules)(HANDLE, HMODULE *, DWORD, LPDWORD); |
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262 static BOOL (WINAPI *_GetModuleFileNameEx)(HANDLE, HMODULE, LPTSTR, DWORD);; |
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263 static BOOL (WINAPI *_GetModuleInformation)(HANDLE, HMODULE, LPMODULEINFO, DWORD); |
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264 static BOOL initialized; |
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265 |
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266 static void initialize(); |
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267 #endif |
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268 }; |
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269 |
1972 | 270 #endif // OS_WINDOWS_VM_OS_WINDOWS_HPP |