[x86/Linux] Fix WIN64EXCEPTIONS build error (#8629)

* Move GetUnwindInfo and GetNumberOfUnwindInfos into the real code header

This commit fixes #8342.

* Use WIN64EXCEPTIONS instead of _TARGET_X86_

* Revise FaultingExceptionFrame

This commit revises FaultingExceptionFrame to support WIN64EXCEPTIONS in
x86/Linux port.

* Add RUNTIME_FUNCTION__EndAddress as NYI

* Revise regdisp.h

* Revise eetwain.h

* Comment out exinfo.cpp if WIN64EXCEPTIONS is defined

* Revises excep.cpp

* Fix mistmatch in ThrowControlForThread defintion

* Revises cgenx86.cpp

* Disable SEH-based exception handlers when WIN64EXCEPTIONS is defined

* Revise stackwalk.cpp

* Revise jitinterface.cpp

* Revise readytorun.h

* Revise dbgipcevents.h

* Revise zapcode.cpp

* Revise clrnt.h

* Fix Windows build error

* Mark FaultingExceptionFrame::UpdateRegDisplay as NYI

* Revise per feedback

* Revert #if defined(..) as #ifdef

* Fix style changes

* Fix style changes

* Remove #undef _TARGET_X86_

* 2nd attempt to fix Windows build error

* Revise per feedback

* Revert the chagnes in clrdefinitions.cmake and add BIT32 in CMakeLists.txt

* Use !BIT64 instead of BIT32

* Include exceptionhandling.cpp and gcinfodecoder.cpp in build

This commit includes exceptionhandling.cpp and gcinfodecoder.cpp in
build, and fixes related compile errors.

* Fix COMPlus_EndCatch undefined reference

* Fix build error

* Fix GcInfoDecoder-related undefined references

* Fix AdjustContextForVirtualStub undefined reference

* Fix GetCallerSP undefined reference

* Fix ResetThreadAbortState undefined reference

* Attempt to fix Windows build error

* Fix CLRNoCatchHandler undefined reference

* Another attemp to fix Windows build error

* Fix GetXXXFromRedirectedStubStackFrame undefined references

* Fix Windows Build Error

* Add RtlpGetFunctionEndAddress and RtlVirtualUnwind as NYI

* Fix undefined references on JIT helpers

* Enable Dummy Application Run with WIN64EXCEPTIONS

* Revert "Move GetUnwindInfo and GetNumberOfUnwindInfos into the real code header"

This reverts commit c2bad85ac1136be3c6fb6ad7eedc5b3814b2ab29.

* Use indirect code header when WIN64EXCEPTIONS is enabled

* Port 'SyncRegDisplayToCurrentContext' and 'FillRegDisplay'

* Revise style 'RUNTIME_FUNCTION__SetUnwindInfoAddress'

* Extract out HandlerData from #ifdef region

* Add UNIXTODO

* Add UNIXTODO

* Port 'GetRegdisplayReturnValue'

* Fix incorrect comment

* Remove messages that mentions WIN32EXCEPTIONS

* Revise AdjustContextForWriteBarrier

* Port 'FaultingExceptionFrame::UpdateRegDisplay'

* Extract out 'AdjustContextForVirtualStub' and 'CLRNoCatchHandler' from #ifdef region

* Merge two #ifdef regions

* Set WIN64EXCEPTIONS as a default for x86/Linux

* Remove unnecessary #ifdef from ThrowControlForThread

* Remove unnecessary stubs

* Add Dependency Check between Compile Flags

* Revise per feedback

1 files changed, 7 insertions, 11 deletions

diff --git a/src/vm/stackwalk.cpp b/src/vm/stackwalk.cpp
index 18a8900039..44e5f99640 100644
--- a/src/vm/stackwalk.cpp
+++ b/src/vm/stackwalk.cpp
@@ -555,11 +555,9 @@ UINT_PTR Thread::VirtualUnwindCallFrame(PREGDISPLAY pRD, EECodeInfo* pCodeInfo /
         pRD->pCurrentContext = pRD->pCallerContext;
         pRD->pCallerContext  = temp;
 
-#if defined(_TARGET_AMD64_) || defined(_TARGET_ARM_) || defined(_TARGET_ARM64_)
         PT_KNONVOLATILE_CONTEXT_POINTERS tempPtrs = pRD->pCurrentContextPointers;
         pRD->pCurrentContextPointers            = pRD->pCallerContextPointers;
         pRD->pCallerContextPointers             = tempPtrs;
-#endif // defined(_TARGET_AMD64_) || defined(_TARGET_ARM_) || defined(_TARGET_ARM64_)
     }
     else
     {
@@ -722,15 +720,12 @@ PCODE Thread::VirtualUnwindNonLeafCallFrame(T_CONTEXT* pContext, KNONVOLATILE_CO
     CONTRACTL_END;
 
     PCODE           uControlPc = GetIP(pContext);
-#if defined(_WIN64)
+#ifdef BIT64
     UINT64              EstablisherFrame;
-    PVOID               HandlerData;
-#elif defined(_TARGET_ARM_)
+#else  // BIT64
     DWORD               EstablisherFrame;
+#endif // BIT64
     PVOID               HandlerData;
-#else
-    _ASSERTE(!"nyi platform stackwalking");
-#endif
 
     if (NULL == pFunctionEntry)
     {
@@ -893,7 +888,7 @@ StackWalkAction Thread::MakeStackwalkerCallback(
 }
 
 
-#if !defined(DACCESS_COMPILE) && defined(_TARGET_X86_)
+#if !defined(DACCESS_COMPILE) && defined(_TARGET_X86_) && !defined(WIN64EXCEPTIONS)
 #define STACKWALKER_MAY_POP_FRAMES
 #endif
 
@@ -2677,9 +2672,10 @@ StackWalkAction StackFrameIterator::NextRaw(void)
 
                 // We are transitioning from unmanaged code to managed code... lets do some validation of our
                 // EH mechanism on platforms that we can.
-#if defined(_DEBUG)  && !defined(DACCESS_COMPILE) && (defined(_TARGET_X86_) && !defined(FEATURE_STUBS_AS_IL))
+#if defined(_DEBUG)  && !defined(DACCESS_COMPILE) && (defined(_TARGET_X86_) && !defined(FEATURE_PAL)) && !defined(WIN64EXCEPTIONS)               
+                // TODO: Revise this once we enable WIN64EXCEPTIONS for x86/Linux
                 VerifyValidTransitionFromManagedCode(m_crawl.pThread, &m_crawl);
-#endif // _DEBUG && !DACCESS_COMPILE && _TARGET_X86_
+#endif // _DEBUG && !DACCESS_COMPILE && _TARGET_X86_ && !WIN64EXCEPTIONS
             }
         }