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Set protocol linkage and visibility correctly and 

build protocol translation table meta-data (objc2
non-fragile abi).

llvm-svn: 63329
This commit is contained in:
Fariborz Jahanian 2009-01-29 20:10:59 +00:00
parent 60d6844aa8
commit 61cd4b56c3
1 changed files with 17 additions and 2 deletions
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19
clang/lib/CodeGen/CGObjCMac.cpp
View File

@ -3843,12 +3843,12 @@ llvm::Constant *CGObjCNonFragileABIMac::GetOrEmitProtocol(
if (Entry) {
// Already created, fix the linkage and update the initializer.
Entry->setLinkage(llvm::GlobalValue::InternalLinkage);
Entry->setLinkage(llvm::GlobalValue::WeakLinkage);
Entry->setInitializer(Init);
} else {
Entry =
new llvm::GlobalVariable(ObjCTypes.ProtocolnfABITy, false,
llvm::GlobalValue::InternalLinkage,
llvm::GlobalValue::WeakLinkage,
Init,
std::string("\01l_OBJC_PROTOCOL_$_")+ProtocolName,
&CGM.getModule());
@ -3856,6 +3856,21 @@ llvm::Constant *CGObjCNonFragileABIMac::GetOrEmitProtocol(
// FIXME: Is this necessary? Why only for protocol?
Entry->setAlignment(4);
}
Entry->setVisibility(llvm::GlobalValue::HiddenVisibility);
// Use this protocol meta-data to build protocol list table in section
// __DATA, __objc_protolist
llvm::Type *ptype = llvm::PointerType::getUnqual(ObjCTypes.ProtocolnfABITy);
llvm::GlobalVariable *PTGV = new llvm::GlobalVariable(
ptype, false,
llvm::GlobalValue::WeakLinkage,
Entry,
std::string("\01l_OBJC_LABEL_PROTOCOL_$_")
+ProtocolName,
&CGM.getModule());
PTGV->setSection("__DATA, __objc_protolist");
PTGV->setVisibility(llvm::GlobalValue::HiddenVisibility);
UsedGlobals.push_back(PTGV);
return Entry;
}