From: Jonghyun Park <parjong@gmail.com>
Date: Wed, 18 Jan 2017 23:35:46 +0000 (+0900)
Subject: [x86/Linux] Do NOT use Shadow SP (dotnet/coreclr#8913)
X-Git-Tag: submit/tizen/20210909.063632~11030^2~8417
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=987b141a9ec1c96d0253c62520610e5d2381174b;p=platform%2Fupstream%2Fdotnet%2Fruntime.git

[x86/Linux] Do NOT use Shadow SP (dotnet/coreclr#8913)



Commit migrated from https://github.com/dotnet/coreclr/commit/e312e9ab50322b522060fa121d9ed0ddd3a8f4d9
---

diff --git a/src/coreclr/src/vm/eetwain.cpp b/src/coreclr/src/vm/eetwain.cpp
index 81a5a0a..538d6a2 100644
--- a/src/coreclr/src/vm/eetwain.cpp
+++ b/src/coreclr/src/vm/eetwain.cpp
@@ -562,7 +562,8 @@ FrameType   GetHandlerFrameInfo(hdrInfo   * info,
     // The slots grow towards lower address on the stack and is terminted by a NULL entry.  
     // Since each subsequent slot contains the SP of a more nested EH clause, the contents of the slots are
     // expected to be in decreasing order.
-    size_t lvl;
+    size_t lvl = 0;
+#ifndef WIN64EXCEPTIONS
     PTR_TADDR pSlot;
     for(lvl = 0, pSlot = pFirstBaseSPslot;
         *pSlot && lvl < unwindLevel;
@@ -625,6 +626,7 @@ FrameType   GetHandlerFrameInfo(hdrInfo   * info,
             baseSP = curSlotVal;
         }
     }
+#endif // WIN64EXCEPTIONS
 
     if (unwindESP != (TADDR) IGNORE_VAL)
     {