From: David Majnemer <david.majnemer@gmail.com>
Date: Mon, 1 Jun 2015 07:34:26 +0000 (+0000)
Subject: [WinCOFF] Ignore .safeseh for non-x86 architectures
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=64f16f53322d08bcd814d0de4019d778cbeb2ffa;p=oota-llvm.git

[WinCOFF] Ignore .safeseh for non-x86 architectures

We don't want to bother with creating .sxdata sections on Win64; all the
relevant information is already in the .pdata section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238730 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/MC/WinCOFFStreamer.cpp b/lib/MC/WinCOFFStreamer.cpp
index abbe4164958..f007b5ee7c8 100644
--- a/lib/MC/WinCOFFStreamer.cpp
+++ b/lib/MC/WinCOFFStreamer.cpp
@@ -159,6 +159,12 @@ void MCWinCOFFStreamer::EndCOFFSymbolDef() {
 }
 
 void MCWinCOFFStreamer::EmitCOFFSafeSEH(MCSymbol const *Symbol) {
+  // SafeSEH is a feature specific to 32-bit x86.  It does not exist (and is
+  // unnecessary) on all platforms which use table-based exception dispatch.
+  if (getContext().getObjectFileInfo()->getTargetTriple().getArch() !=
+      Triple::x86)
+    return;
+
   if (Symbol->getFlags() & COFF::SF_SafeSEH)
     return;