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authorJiyoung Yun <jy910.yun@samsung.com>2016-11-23 10:09:09 (GMT)
committerJiyoung Yun <jy910.yun@samsung.com>2016-11-23 10:09:09 (GMT)
commit4b4aad7217d3292650e77eec2cf4c198ea9c3b4b (patch)
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Imported Upstream version 1.1.0upstream/1.1.0
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+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+
+
+#ifndef __PREDEFTLSSLOT_H__
+#define __PREDEFTLSSLOT_H__
+
+
+// And here are the predefined slots for accessing TLS from various DLLs of the CLR.
+// Note that we want to support combinations of Debug and Retail DLLs for testing
+// purposes, so we burn the slots into the retail EE even if a debug CLR dll needs
+// them.
+enum PredefinedTlsSlots
+{
+ TlsIdx_StrongName,
+ TlsIdx_JitPerf,
+ TlsIdx_JitX86Perf,
+ TlsIdx_JitLogEnv,
+ TlsIdx_IceCap,
+ TlsIdx_StressLog,
+ TlsIdx_StackProbe,
+ TlsIdx_Check,
+ TlsIdx_ForbidGCLoaderUseCount,
+ TlsIdx_ClrDebugState, // Pointer to ClrDebugState* structure
+ TlsIdx_StressThread,
+
+ // Add more indices here.
+ TlsIdx_ThreadType, // bit flags to indicate special thread's type
+ TlsIdx_CantStopCount, // Can't-stop counter for any thread
+ TlsIdx_OwnedCrstsChain, // slot to store the Crsts owned by this thread
+ TlsIdx_AppDomainAgilePendingTable,
+ TlsIdx_CantAllocCount, //Can't allocate memory on heap in this thread
+ TlsIdx_AssertDlgStatus, // Whether the thread is displaying an assert dialog
+
+ // A transient thread value that indicates this thread is currently walking its stack
+ // or the stack of another thread. This value is useful to help short-circuit
+ // some problematic checks in the loader, guarantee that types & assemblies
+ // encountered during the walk must already be loaded, and provide information to control
+ // assembly loading behavior during stack walks.
+ //
+ // This value is set around the main portions of the stack walk (as those portions may
+ // enter the type & assembly loaders). This is also explicitly cleared while the
+ // walking thread calls the stackwalker callback or needs to execute managed code, as
+ // such calls may execute arbitrary code unrelated to the actual stack walking, and
+ // may never return, in the case of exception stackwalk callbacks.
+ TlsIdx_StackWalkerWalkingThread, // Thread* that the stack walker is currently walking.
+
+ // Save the last exception info. Sometimes we need this info in our EX_CATCH, such as for SO.
+ // It will be better if VC can supply this in catch(...) block.
+ // !!! These data may become stale. Use it only inside exception handling code.
+ // !!! Please access these fields through GetCurrentExceptionPointers which validates the data to some level.
+ TlsIdx_EXCEPTION_CODE,
+ TlsIdx_PEXCEPTION_RECORD,
+ TlsIdx_PCONTEXT,
+
+ TlsIdx_SOIntolerantTransitionHandler, // The thread is entering SO intolerant code. This one is used by
+ // Thread::IsSOIntolerant to decide the SO mode of the thread.
+ MAX_PREDEFINED_TLS_SLOT
+};
+
+enum TlsThreadTypeFlag // flag used for thread type in Tls data
+{
+ ThreadType_GC = 0x00000001,
+ ThreadType_Timer = 0x00000002,
+ ThreadType_Gate = 0x00000004,
+ ThreadType_DbgHelper = 0x00000008,
+ ThreadType_Shutdown = 0x00000010,
+ ThreadType_DynamicSuspendEE = 0x00000020,
+ ThreadType_Finalizer = 0x00000040,
+ ThreadType_ADUnloadHelper = 0x00000200,
+ ThreadType_ShutdownHelper = 0x00000400,
+ ThreadType_Threadpool_IOCompletion = 0x00000800,
+ ThreadType_Threadpool_Worker = 0x00001000,
+ ThreadType_Wait = 0x00002000,
+ ThreadType_ProfAPI_Attach = 0x00004000,
+ ThreadType_ProfAPI_Detach = 0x00008000,
+ ThreadType_ETWRundownThread = 0x00010000,
+ ThreadType_GenericInstantiationCompare= 0x00020000, // Used to indicate that the thread is determining if a generic instantiation in an ngen image matches a lookup.
+};
+
+#endif
+