From 7d5633e9074db9eaf796e677451f6642c0174fac Mon Sep 17 00:00:00 2001
From: Dale Johannesen <dalej@apple.com>
Date: Fri, 16 May 2008 22:44:18 +0000
Subject: Add CommonLinkage to lto (treated same as weak AFAICT) and llvm-nm
 (prints as C).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51209 91177308-0d34-0410-b5e6-96231b3b80d8
---
 tools/llvm-nm/llvm-nm.cpp | 1 +
 tools/lto/lto.cpp         | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/llvm-nm/llvm-nm.cpp b/tools/llvm-nm/llvm-nm.cpp
index 63fa75d884..008c2e0431 100644
--- a/tools/llvm-nm/llvm-nm.cpp
+++ b/tools/llvm-nm/llvm-nm.cpp
@@ -70,6 +70,7 @@ namespace {
 static char TypeCharForSymbol(GlobalValue &GV) {
   if (GV.isDeclaration())                                  return 'U';
   if (GV.hasLinkOnceLinkage())                             return 'C';
+  if (GV.hasCommonLinkage())                               return 'C';
   if (GV.hasWeakLinkage())                                 return 'W';
   if (isa<Function>(GV) && GV.hasInternalLinkage())        return 't';
   if (isa<Function>(GV))                                   return 'T';
diff --git a/tools/lto/lto.cpp b/tools/lto/lto.cpp
index d2cb3b8b43..0a962fce1d 100644
--- a/tools/lto/lto.cpp
+++ b/tools/lto/lto.cpp
@@ -65,7 +65,7 @@ void LLVMSymbol::mayBeNotUsed() {
   gv->setLinkage(GlobalValue::InternalLinkage); 
 }
 
-// Map LLVM LinkageType to LTO LinakgeType
+// Map LLVM LinkageType to LTO LinkageType
 static LTOLinkageTypes
 getLTOLinkageType(GlobalValue *v)
 {
@@ -76,6 +76,8 @@ getLTOLinkageType(GlobalValue *v)
     lt = LTOLinkOnceLinkage;
   else if (v->hasWeakLinkage())
     lt = LTOWeakLinkage;
+  else if (v->hasCommonLinkage())
+    lt = LTOCommonLinkage;
   else
     // Otherwise it is internal linkage for link time optimizer
     lt = LTOInternalLinkage;
-- 
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