Cleanup ifdefs (#99511)

jkotas · web-flow · commit 1400c1e7a888 · 2024-03-11T15:02:31.000-07:00
- Delete unused defines
- Fix logic around funclet related ifdefs in a few places
diff --git a/src/coreclr/System.Private.CoreLib/System.Private.CoreLib.csproj b/src/coreclr/System.Private.CoreLib/System.Private.CoreLib.csproj
@@ -206,12 +206,12 @@
     <Compile Include="$(BclSourcesRoot)\System\Runtime\CompilerServices\RuntimeHelpers.CoreCLR.cs" />
     <Compile Include="$(BclSourcesRoot)\System\Runtime\ControlledExecution.CoreCLR.cs" />
     <Compile Include="$(BclSourcesRoot)\System\Runtime\DependentHandle.cs" />
-    <Compile Include="$(MSBuildThisFileDirectory)..\nativeaot\Common\src\System\Runtime\RhFailFastReason.cs" Condition="('$(Platform)' != 'x86' or '$(TargetsWindows)' != 'true')" />
-    <Compile Include="$(MSBuildThisFileDirectory)..\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs" Condition="('$(Platform)' != 'x86' or '$(TargetsWindows)' != 'true')" />
-    <Compile Include="$(MSBuildThisFileDirectory)..\nativeaot\Runtime.Base\src\System\Runtime\ExceptionIDs.cs" Condition="('$(Platform)' != 'x86' or '$(TargetsWindows)' != 'true')" />
-    <Compile Include="$(MSBuildThisFileDirectory)..\nativeaot\Runtime.Base\src\System\Runtime\StackFrameIterator.cs" Condition="('$(Platform)' != 'x86' or '$(TargetsWindows)' != 'true')" />
-    <Compile Include="$(BclSourcesRoot)\System\Runtime\ExceptionServices\AsmOffsets.cs" Condition="('$(Platform)' != 'x86' or '$(TargetsWindows)' != 'true')" />
-    <Compile Include="$(BclSourcesRoot)\System\Runtime\ExceptionServices\InternalCalls.cs" Condition="('$(Platform)' != 'x86' or '$(TargetsWindows)' != 'true')" />
+    <Compile Include="$(MSBuildThisFileDirectory)..\nativeaot\Common\src\System\Runtime\RhFailFastReason.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)..\nativeaot\Runtime.Base\src\System\Runtime\ExceptionHandling.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)..\nativeaot\Runtime.Base\src\System\Runtime\ExceptionIDs.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)..\nativeaot\Runtime.Base\src\System\Runtime\StackFrameIterator.cs" />
+    <Compile Include="$(BclSourcesRoot)\System\Runtime\ExceptionServices\AsmOffsets.cs" />
+    <Compile Include="$(BclSourcesRoot)\System\Runtime\ExceptionServices\InternalCalls.cs" />
     <Compile Include="$(BclSourcesRoot)\System\Runtime\GCSettings.CoreCLR.cs" />
     <Compile Include="$(BclSourcesRoot)\System\Runtime\JitInfo.CoreCLR.cs" />
     <Compile Include="$(BclSourcesRoot)\System\Runtime\InteropServices\ComTypes\IEnumerable.cs" />
diff --git a/src/coreclr/clr.featuredefines.props b/src/coreclr/clr.featuredefines.props
@@ -1,37 +1,26 @@
 <Project>
     <PropertyGroup>
         <FeatureCoreCLR>true</FeatureCoreCLR>
-        <FeatureCollectibleALC>true</FeatureCollectibleALC>
         <FeatureEventTrace>true</FeatureEventTrace>
         <FeatureICastable>true</FeatureICastable>
         <FeaturePerfTracing>true</FeaturePerfTracing>
         <FeatureTypeEquivalence>true</FeatureTypeEquivalence>
-        <FeatureBasicFreeze>true</FeatureBasicFreeze>
         <ProfilingSupportedBuild>true</ProfilingSupportedBuild>
     </PropertyGroup>
 
     <PropertyGroup Condition="'$(TargetsUnix)' == 'true'">
         <FeatureXplatEventSource Condition="'$(TargetOS)' == 'linux'">true</FeatureXplatEventSource>
-
         <FeatureArrayStubAsIL>true</FeatureArrayStubAsIL>
         <FeatureMulticastStubAsIL>true</FeatureMulticastStubAsIL>
-        <FeaturePortableShuffleThunks Condition="'$(Platform)' != 'x86'">true</FeaturePortableShuffleThunks>
-        <FeatureInstantiatingStubAsIL>true</FeatureInstantiatingStubAsIL>
-        <FeatureStubsAsIL>true</FeatureStubsAsIL>
         <FeatureComWrappers>true</FeatureComWrappers>
     </PropertyGroup>
 
     <PropertyGroup Condition="'$(TargetsWindows)' == 'true'">
         <FeatureArrayStubAsIL Condition="'$(Platform)' != 'x86'">true</FeatureArrayStubAsIL>
         <FeatureMulticastStubAsIL Condition="'$(Platform)' != 'x86'">true</FeatureMulticastStubAsIL>
-        <FeatureStubsAsIL Condition="'$(Platform)' == 'arm64'">true</FeatureStubsAsIL>
         <FeatureComWrappers>true</FeatureComWrappers>
         <FeatureCominterop>true</FeatureCominterop>
         <FeatureCominteropApartmentSupport>true</FeatureCominteropApartmentSupport>
-        <FeatureWin32Registry>true</FeatureWin32Registry>
-        <FeatureProfAttach>true</FeatureProfAttach>
-        <FeaturePortableShuffleThunks Condition="'$(Platform)' != 'x86'">true</FeaturePortableShuffleThunks>
-        <FeatureInstantiatingStubAsIL Condition="'$(Platform)' != 'x86'">true</FeatureInstantiatingStubAsIL>
     </PropertyGroup>
 
     <PropertyGroup Condition="'$(TargetsOSX)' == 'true' OR '$(TargetsMacCatalyst)' == 'true' OR '$(TargetsiOS)' == 'true' OR '$(TargetstvOS)' == 'true'">
@@ -45,23 +34,16 @@
     <PropertyGroup>
         <DefineConstants Condition="'$(FeatureArrayStubAsIL)' == 'true'">$(DefineConstants);FEATURE_ARRAYSTUB_AS_IL</DefineConstants>
         <DefineConstants Condition="'$(FeatureMulticastStubAsIL)' == 'true'">$(DefineConstants);FEATURE_MULTICASTSTUB_AS_IL</DefineConstants>
-        <DefineConstants Condition="'$(FeatureInstantiatingStubAsIL)' == 'true'">$(DefineConstants);FEATURE_INSTANTIATINGSTUB_AS_IL</DefineConstants>
-        <DefineConstants Condition="'$(FeatureStubsAsIL)' == 'true'">$(DefineConstants);FEATURE_STUBS_AS_IL</DefineConstants>
-        <DefineConstants Condition="'$(FeatureCollectibleALC)' == 'true'">$(DefineConstants);FEATURE_COLLECTIBLE_ALC</DefineConstants>
         <DefineConstants Condition="'$(FeatureComWrappers)' == 'true'">$(DefineConstants);FEATURE_COMWRAPPERS</DefineConstants>
         <DefineConstants Condition="'$(FeatureCominterop)' == 'true'">$(DefineConstants);FEATURE_COMINTEROP</DefineConstants>
         <DefineConstants Condition="'$(FeatureCominteropApartmentSupport)' == 'true'">$(DefineConstants);FEATURE_COMINTEROP_APARTMENT_SUPPORT</DefineConstants>
         <DefineConstants Condition="'$(FeatureObjCMarshal)' == 'true'">$(DefineConstants);FEATURE_OBJCMARSHAL</DefineConstants>
         <DefineConstants Condition="'$(FeaturePerfTracing)' == 'true'">$(DefineConstants);FEATURE_PERFTRACING</DefineConstants>
         <DefineConstants Condition="'$(FeatureXplatEventSource)' == 'true'">$(DefineConstants);FEATURE_EVENTSOURCE_XPLAT</DefineConstants>
-        <DefineConstants Condition="'$(FeatureWin32Registry)' == 'true'">$(DefineConstants);FEATURE_WIN32_REGISTRY</DefineConstants>
         <DefineConstants Condition="'$(FeatureTypeEquivalence)' == 'true'">$(DefineConstants);FEATURE_TYPEEQUIVALENCE</DefineConstants>
-        <DefineConstants Condition="'$(FeatureBasicFreeze)' == 'true'">$(DefineConstants);FEATURE_BASICFREEZE</DefineConstants>
-        <DefineConstants Condition="'$(FeaturePortableShuffleThunks)' == 'true'">$(DefineConstants);FEATURE_PORTABLE_SHUFFLE_THUNKS</DefineConstants>
         <DefineConstants Condition="'$(FeatureICastable)' == 'true'">$(DefineConstants);FEATURE_ICASTABLE</DefineConstants>
         <DefineConstants Condition="'$(FeatureEHFunclets)' == 'true'">$(DefineConstants);FEATURE_EH_FUNCLETS</DefineConstants>
 
         <DefineConstants Condition="'$(ProfilingSupportedBuild)' == 'true'">$(DefineConstants);PROFILING_SUPPORTED</DefineConstants>
-        <DefineConstants Condition="'$(FeatureProfAttach)' == 'true'">$(DefineConstants);FEATURE_PROFAPI_ATTACH_DETACH</DefineConstants>
     </PropertyGroup>
 </Project>
diff --git a/src/coreclr/clrdefinitions.cmake b/src/coreclr/clrdefinitions.cmake
@@ -203,9 +203,6 @@ if(CLR_CMAKE_TARGET_ARCH_AMD64 OR CLR_CMAKE_TARGET_ARCH_ARM64 OR CLR_CMAKE_TARGE
   add_definitions(-DFEATURE_MANUALLY_MANAGED_CARD_BUNDLES)
 endif(CLR_CMAKE_TARGET_ARCH_AMD64 OR CLR_CMAKE_TARGET_ARCH_ARM64 OR CLR_CMAKE_TARGET_ARCH_LOONGARCH64 OR CLR_CMAKE_TARGET_ARCH_RISCV64)
 
-if(NOT CLR_CMAKE_TARGET_UNIX)
-    add_definitions(-DFEATURE_WIN32_REGISTRY)
-endif(NOT CLR_CMAKE_TARGET_UNIX)
 add_definitions(-D_SECURE_SCL=0)
 add_definitions(-DUNICODE)
 add_definitions(-D_UNICODE)
diff --git a/src/coreclr/debug/ee/debugger.h b/src/coreclr/debug/ee/debugger.h
@@ -3892,8 +3892,6 @@ HANDLE OpenWin32EventOrThrow(
 // Returns true if the specified IL offset has a special meaning (eg. prolog, etc.)
 bool DbgIsSpecialILOffset(DWORD offset);
 
-#if !defined(TARGET_X86)
 void FixupDispatcherContext(T_DISPATCHER_CONTEXT* pDispatcherContext, T_CONTEXT* pContext, PEXCEPTION_ROUTINE pUnwindPersonalityRoutine = NULL);
-#endif
 
 #endif /* DEBUGGER_H_ */
diff --git a/src/coreclr/inc/clrnt.h b/src/coreclr/inc/clrnt.h
@@ -223,10 +223,7 @@ RtlpGetFunctionEndAddress (
 #define RUNTIME_FUNCTION__SetUnwindInfoAddress(prf, addr) do { (prf)->UnwindData = (addr); } while(0)
 
 #ifdef HOST_X86
-EXTERN_C
-NTSYSAPI
 PEXCEPTION_ROUTINE
-NTAPI
 RtlVirtualUnwind (
     _In_ DWORD HandlerType,
     _In_ DWORD ImageBase,
diff --git a/src/coreclr/inc/daccess.h b/src/coreclr/inc/daccess.h
@@ -806,7 +806,6 @@ struct COR_ILMETHOD* DacGetIlMethod(TADDR methAddr);
 struct _UNWIND_INFO * DacGetUnwindInfo(TADDR taUnwindInfo);
 
 // virtually unwind a CONTEXT out-of-process
-struct _KNONVOLATILE_CONTEXT_POINTERS;
 BOOL DacUnwindStackFrame(T_CONTEXT * pContext, T_KNONVOLATILE_CONTEXT_POINTERS* pContextPointers);
 #endif // FEATURE_EH_FUNCLETS
 
@@ -2433,7 +2432,7 @@ typedef DPTR(IMAGE_TLS_DIRECTORY)   PTR_IMAGE_TLS_DIRECTORY;
 #endif
 
 #ifndef NATIVEAOT
-#if defined(TARGET_X86) && defined(TARGET_UNIX)
+#if defined(TARGET_X86) && defined(FEATURE_EH_FUNCLETS)
 typedef DPTR(struct _UNWIND_INFO)      PTR_UNWIND_INFO;
 #endif
 
diff --git a/src/coreclr/unwinder/i386/unwinder.cpp b/src/coreclr/unwinder/i386/unwinder.cpp
@@ -37,7 +37,7 @@ BOOL OOPStackUnwinderX86::Unwind(T_CONTEXT* pContextRecord, T_KNONVOLATILE_CONTE
                              dac_cast<PTR_CBYTE>(gcInfoToken.Info) + hdrInfoSize,
                              PTR_CBYTE(codeInfo.GetJitManager()->GetFuncletStartAddress(&codeInfo)),
                              codeInfo.IsFunclet(),
-                             UpdateAllRegs))
+                             true))
     {
         return FALSE;
     }
@@ -193,10 +193,7 @@ BOOL DacUnwindStackFrame(T_CONTEXT* pContextRecord, T_KNONVOLATILE_CONTEXT_POINT
 //     language specific exception handler is returned. Otherwise, NULL is
 //     returned.
 //
-EXTERN_C
-NTSYSAPI
 PEXCEPTION_ROUTINE
-NTAPI
 RtlVirtualUnwind (
     _In_ DWORD HandlerType,
     _In_ DWORD ImageBase,
diff --git a/src/coreclr/vm/.vscode/c_cpp_properties.json b/src/coreclr/vm/.vscode/c_cpp_properties.json
@@ -71,7 +71,6 @@
                 "FEATURE_USE_ASM_GC_WRITE_BARRIERS",
                 "FEATURE_USE_SOFTWARE_WRITE_WATCH_FOR_GC_HEAP",
                 "FEATURE_UTF8STRING=1",
-                "FEATURE_WIN32_REGISTRY",
                 "TARGET_WINDOWS=1",
                 "PROFILING_SUPPORTED_DATA",
                 "UNICODE",
diff --git a/src/coreclr/vm/codeman.h b/src/coreclr/vm/codeman.h
@@ -2619,21 +2619,20 @@ class EECodeInfo
     PTR_RUNTIME_FUNCTION GetFunctionEntry();
     BOOL        IsFunclet()     { WRAPPER_NO_CONTRACT; return GetJitManager()->IsFunclet(this); }
     EECodeInfo  GetMainFunctionInfo();
-    ULONG               GetFixedStackSize();
-
-#if defined(TARGET_AMD64)
-    BOOL        HasFrameRegister();
-#endif // TARGET_AMD64
+#endif // FEATURE_EH_FUNCLETS
 
-#else // FEATURE_EH_FUNCLETS
+#if defined(TARGET_X86)
     ULONG       GetFixedStackSize()
     {
         WRAPPER_NO_CONTRACT;
         return GetCodeManager()->GetFrameSize(GetGCInfoToken());
     }
-#endif // FEATURE_EH_FUNCLETS
+#endif // TARGET_X86
 
 #if defined(TARGET_AMD64)
+    BOOL        HasFrameRegister();
+    ULONG       GetFixedStackSize();
+
     void         GetOffsetsFromUnwindInfo(ULONG* pRSPOffset, ULONG* pRBPOffset);
     ULONG        GetFrameOffsetFromUnwindInfo();
 #if defined(_DEBUG) && defined(HAVE_GCCOVER)
diff --git a/src/coreclr/vm/eetwain.cpp b/src/coreclr/vm/eetwain.cpp
@@ -1650,7 +1650,6 @@ OBJECTREF EECodeManager::GetInstance( PREGDISPLAY    pContext,
     hdrInfo     info;
     unsigned    stackDepth;
     TADDR       taArgBase;
-    unsigned    count;
 
     /* Extract the necessary information from the info block header */
 
@@ -1709,7 +1708,7 @@ OBJECTREF EECodeManager::GetInstance( PREGDISPLAY    pContext,
     /* The 'this' pointer can never be located in the untracked table */
     /* as we only allow pinned and byrefs in the untracked table      */
 
-    count = info.untrackedCnt;
+    unsigned count = info.untrackedCnt;
     while (count-- > 0)
     {
         fastSkipSigned(table);
diff --git a/src/coreclr/vm/excep.cpp b/src/coreclr/vm/excep.cpp
@@ -8894,11 +8894,9 @@ BOOL IsThrowableThreadAbortException(OBJECTREF oThrowable)
 #if defined(FEATURE_EH_FUNCLETS)
 PTR_ExceptionTrackerBase GetEHTrackerForPreallocatedException(OBJECTREF oPreAllocThrowable,
                                                           PTR_ExceptionTrackerBase pStartingEHTracker)
-#elif TARGET_X86
+#else
 PTR_ExInfo GetEHTrackerForPreallocatedException(OBJECTREF oPreAllocThrowable,
                                                 PTR_ExInfo pStartingEHTracker)
-#else
-#error Unsupported platform
 #endif
 {
     CONTRACTL
@@ -8916,11 +8914,9 @@ PTR_ExInfo GetEHTrackerForPreallocatedException(OBJECTREF oPreAllocThrowable,
     // Get the reference to the current exception tracker
 #if defined(FEATURE_EH_FUNCLETS)
     PTR_ExceptionTrackerBase pEHTracker = (pStartingEHTracker != NULL) ? pStartingEHTracker : GetThread()->GetExceptionState()->GetCurrentExceptionTracker();
-#elif TARGET_X86
+#else
     PTR_ExInfo pEHTracker = (pStartingEHTracker != NULL) ? pStartingEHTracker : GetThread()->GetExceptionState()->GetCurrentExceptionTracker();
-#else // !(HOST_64BIT || TARGET_X86)
-#error Unsupported platform
-#endif // HOST_64BIT
+#endif
 
     BOOL fFoundTracker = FALSE;
 
@@ -8995,13 +8991,10 @@ PTR_EHWatsonBucketTracker GetWatsonBucketTrackerForPreallocatedException(OBJECTR
  #if defined(FEATURE_EH_FUNCLETS)
         PTR_ExceptionTrackerBase pEHTracker = NULL;
         PTR_ExceptionTrackerBase pPreviousEHTracker = NULL;
-
-#elif TARGET_X86
+#else
         PTR_ExInfo pEHTracker = NULL;
         PTR_ExInfo pPreviousEHTracker = NULL;
-#else // !(HOST_64BIT || TARGET_X86)
-#error Unsupported platform
-#endif // HOST_64BIT
+#endif
 
         if (fStartSearchFromPreviousTracker)
         {
diff --git a/src/coreclr/vm/excep.h b/src/coreclr/vm/excep.h
@@ -520,9 +520,9 @@ EXCEPTION_HANDLER_DECL(COMPlusFrameHandlerRevCom);
 // Pop off any SEH handlers we have registered below pTargetSP
 VOID __cdecl PopSEHRecords(LPVOID pTargetSP);
 
-#if defined(TARGET_X86) && defined(DEBUGGING_SUPPORTED)
+#ifdef DEBUGGING_SUPPORTED
 VOID UnwindExceptionTrackerAndResumeInInterceptionFrame(ExInfo* pExInfo, EHContext* context);
-#endif // TARGET_X86 && DEBUGGING_SUPPORTED
+#endif // DEBUGGING_SUPPORTED
 
 BOOL PopNestedExceptionRecords(LPVOID pTargetSP, BOOL bCheckForUnknownHandlers = FALSE);
 VOID PopNestedExceptionRecords(LPVOID pTargetSP, T_CONTEXT *pCtx, void *pSEH);
diff --git a/src/coreclr/vm/exinfo.cpp b/src/coreclr/vm/exinfo.cpp
@@ -121,10 +121,10 @@ void ExInfo::Init()
 
     m_pTopMostHandlerDuringSO = NULL;
 
-#if defined(TARGET_X86) && defined(DEBUGGING_SUPPORTED)
+#ifdef DEBUGGING_SUPPORTED
     m_InterceptionContext.Init();
     m_ValidInterceptionContext = FALSE;
-#endif //TARGET_X86 && DEBUGGING_SUPPORTED
+#endif // DEBUGGING_SUPPORTED
 }
 
 ExInfo::ExInfo()
diff --git a/src/coreclr/vm/exinfo.h b/src/coreclr/vm/exinfo.h
@@ -136,7 +136,7 @@ class ExInfo
     EHClauseInfo        m_EHClauseInfo;
     ExceptionFlags      m_ExceptionFlags;
 
-#if defined(TARGET_X86) && defined(DEBUGGING_SUPPORTED)
+#ifdef DEBUGGING_SUPPORTED
     EHContext           m_InterceptionContext;
     BOOL                m_ValidInterceptionContext;
 #endif
@@ -155,9 +155,7 @@ class ExInfo
     ExInfo& operator=(const ExInfo &from);
 };
 
-#if defined(TARGET_X86)
 PTR_ExInfo GetEHTrackerForPreallocatedException(OBJECTREF oPreAllocThrowable, PTR_ExInfo pStartingEHTracker);
-#endif // TARGET_X86
 
 #else // !FEATURE_EH_FUNCLETS
 
diff --git a/src/coreclr/vm/i386/asmconstants.h b/src/coreclr/vm/i386/asmconstants.h
@@ -231,8 +231,6 @@ ASMCONSTANTS_C_ASSERT(OFFSETOF__FrameHandlerExRecord__m_pEntryFrame == offsetof(
 #define STACK_OVERWRITE_BARRIER_VALUE 0xabcdefab
 #endif
 
-#define SIZEOF_FrameHandlerExRecordWithBarrier 0x5c
-ASMCONSTANTS_C_ASSERT(SIZEOF_FrameHandlerExRecordWithBarrier == sizeof(FrameHandlerExRecordWithBarrier))
 #endif
 
 
diff --git a/src/coreclr/vm/i386/jithelp.asm b/src/coreclr/vm/i386/jithelp.asm
@@ -75,7 +75,9 @@ EXTERN  g_GCShadowEnd:DWORD
 INVALIDGCVALUE equ 0CCCCCCCDh
 endif
 
+ifndef FEATURE_EH_FUNCLETS
 EXTERN _COMPlusEndCatch@20:PROC
+endif
 
 .686P
 .XMM
@@ -1298,6 +1300,7 @@ ret
 _JIT_PatchedCodeEnd@0 endp
 
 
+ifndef FEATURE_EH_FUNCLETS
 ; Note that the debugger skips this entirely when doing SetIP,
 ; since COMPlusCheckForAbort should always return 0.  Excep.cpp:LeaveCatch
 ; asserts that to be true.  If this ends up doing more work, then the
@@ -1325,6 +1328,7 @@ JIT_EndCatch PROC stdcall public
     jmp     edx         ; eip = new eip
 
 JIT_EndCatch ENDP
+endif
 
 ; The following helper will access ("probe") a word on each page of the stack
 ; starting with the page right beneath esp down to the one pointed to by eax.
diff --git a/src/coreclr/vm/rtlfunctions.cpp b/src/coreclr/vm/rtlfunctions.cpp
@@ -16,7 +16,7 @@
 #include "rtlfunctions.h"
 
 
-#ifdef TARGET_AMD64
+#ifdef HOST_AMD64
 
 RtlVirtualUnwindFn*                 RtlVirtualUnwind_Unsafe         = NULL;
 
@@ -45,17 +45,17 @@ HRESULT EnsureRtlFunctions()
     return S_OK;
 }
 
-#else // TARGET_AMD64
+#else // HOST_AMD64
 
 HRESULT EnsureRtlFunctions()
 {
     LIMITED_METHOD_CONTRACT;
     return S_OK;
 }
 
-#endif // TARGET_AMD64
+#endif // HOST_AMD64
 
-#if defined(FEATURE_EH_FUNCLETS)
+#ifndef HOST_X86
 
 VOID InstallEEFunctionTable (
         PVOID pvTableID,
@@ -127,5 +127,4 @@ VOID InstallEEFunctionTable (
     }
 }
 
-#endif // FEATURE_EH_FUNCLETS
-
+#endif // HOST_X86
diff --git a/src/coreclr/vm/rtlfunctions.h b/src/coreclr/vm/rtlfunctions.h
@@ -49,7 +49,7 @@ PVOID DecodeDynamicFunctionTableContext (PVOID pvContext)
 #endif // FEATURE_EH_FUNCLETS
 
 
-#if defined(FEATURE_EH_FUNCLETS) && !defined(DACCESS_COMPILE) && !defined(TARGET_UNIX)
+#if !defined(DACCESS_COMPILE) && defined(HOST_WINDOWS) && !defined(HOST_X86)
 
 // Wrapper for RtlInstallFunctionTableCallback.
 VOID InstallEEFunctionTable(
@@ -67,12 +67,12 @@ VOID DeleteEEFunctionTable(
     RtlDeleteFunctionTable((PT_RUNTIME_FUNCTION)((ULONG64)pvTableID | 3));
 }
 
-#else // FEATURE_EH_FUNCLETS && !DACCESS_COMPILE && !TARGET_UNIX
+#else
 
 #define InstallEEFunctionTable(pvTableID, pvStartRange, cbRange, pfnGetRuntimeFunctionCallback, pvContext, TableType) do { } while (0)
 #define DeleteEEFunctionTable(pvTableID) do { } while (0)
 
-#endif // FEATURE_EH_FUNCLETS && !DACCESS_COMPILE && !TARGET_UNIX
+#endif
 
 
 #endif // !__RTLFUNCTIONS_H__
diff --git a/src/coreclr/vm/threads.h b/src/coreclr/vm/threads.h
@@ -6222,9 +6222,7 @@ class StackWalkerWalkingThreadHolder
 #if defined(TARGET_WINDOWS) && defined(TARGET_AMD64)
 EXTERN_C void STDCALL ClrRestoreNonvolatileContextWorker(PCONTEXT ContextRecord, DWORD64 ssp);
 #endif
-#if !(defined(TARGET_WINDOWS) && defined(TARGET_X86))
 void ClrRestoreNonvolatileContext(PCONTEXT ContextRecord);
-#endif
 #endif // DACCESS_COMPILE
 
 #endif //__threads_h__
