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extern_weak linkage. fixes PR1038 

llvm-svn: 32603
This commit is contained in:
Andrew Lenharth 2006-12-15 17:35:32 +00:00
parent 54de5be0b4
commit e06036d229
1 changed files with 5 additions and 1 deletions
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6
llvm/lib/Linker/LinkModules.cpp
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@ -365,6 +365,10 @@ static bool GetLinkageResult(GlobalValue *Dest, GlobalValue *Src,
LinkFromSrc = true; LinkFromSrc = true;
LT = Src->getLinkage(); LT = Src->getLinkage();
} }
} else if (Dest->hasExternalWeakLinkage()) {
//If the Dest is weak, use the source linkage
LinkFromSrc = true;
LT = Src->getLinkage();
} else { } else {
LinkFromSrc = false; LinkFromSrc = false;
LT = Dest->getLinkage(); LT = Dest->getLinkage();
@ -446,7 +450,7 @@ static bool LinkGlobals(Module *Dest, Module *Src,
if (DGV && DGV->hasInternalLinkage()) if (DGV && DGV->hasInternalLinkage())
DGV = 0; DGV = 0;
assert(SGV->hasInitializer() || assert(SGV->hasInitializer() || SGV->hasExternalWeakLinkage() ||
SGV->hasExternalLinkage() || SGV->hasDLLImportLinkage() && SGV->hasExternalLinkage() || SGV->hasDLLImportLinkage() &&
"Global must either be external or have an initializer!"); "Global must either be external or have an initializer!");