Fix assert in IsIPInEpilog

The assert was incorrect for managed functions without body. Since there
is no easy way to find out that function has no body at that place,
the fix is to remove the assert.

Commit migrated from https://github.com/dotnet/coreclr/commit/5ccd752bfaa38ff67e53e4c2046dd77fbbde6ede

diff --git a/src/coreclr/src/vm/excep.cpp b/src/coreclr/src/vm/excep.cpp
index a5aed2d..45ac184 100644 (file)
--- a/src/coreclr/src/vm/excep.cpp
+++ b/src/coreclr/src/vm/excep.cpp
@@ -8242,28 +8242,6 @@ bool IsIPInEpilog(PTR_CONTEXT pContextToCheck, EECodeInfo *pCodeInfo, BOOL *pSaf
     imageBase = pCodeInfo->GetModuleBase();
     pUnwindInfo = (PUNWIND_INFO)(imageBase+ funcEntry->UnwindData);
 
-#if defined(_DEBUG)
-    // In debug builds, assert our invariant that jitted code always have the managed personality routine
-    // specified in the unwindInfo. For this, get an IP that is inside the method body. For this case,
-    // we calculate the first address comprising the method body.
-    PCODE ipInMethodBody = pCodeInfo->GetStartAddress()+pUnwindInfo->SizeOfProlog;
-
-    ZeroMemory(&tempContext, sizeof(CONTEXT));
-    CopyOSContext(&tempContext, pContextToCheck);
-
-    // TODO: Explain the context mismatch issue here and why the unwind is still okay.
-    personalityRoutine = RtlVirtualUnwind(UNW_FLAG_EHANDLER,     // HandlerType
-                     imageBase,
-                     ipInMethodBody,
-                     funcEntry,
-                     &tempContext,
-                     &HandlerData,
-                     &establisherFrame,
-                     NULL);
-
-    _ASSERTE(personalityRoutine != NULL);
-#endif // _DEBUG
-
     ZeroMemory(&tempContext, sizeof(CONTEXT));
     CopyOSContext(&tempContext, pContextToCheck);
     KNONVOLATILE_CONTEXT_POINTERS ctxPtrs;