From 03bcd6ecc8e71af76a3ca1277adb4c2440265893 Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Thu, 1 Jul 2010 21:55:59 +0000 Subject: Implement the "linker_private_weak" linkage type. This will be used for Objective-C metadata types which should be marked as "weak", but which the linker will remove upon final linkage. However, this linkage isn't specific to Objective-C. For example, the "objc_msgSend_fixup_alloc" symbol is defined like this: .globl l_objc_msgSend_fixup_alloc .weak_definition l_objc_msgSend_fixup_alloc .section __DATA, __objc_msgrefs, coalesced .align 3 l_objc_msgSend_fixup_alloc: .quad _objc_msgSend_fixup .quad L_OBJC_METH_VAR_NAME_1 This is different from the "linker_private" linkage type, because it can't have the metadata defined with ".weak_definition". Currently only supported on Darwin platforms. llvm-svn: 107433 --- llvm/lib/Transforms/IPO/MergeFunctions.cpp | 1 + 1 file changed, 1 insertion(+) (limited to 'llvm/lib/Transforms/IPO/MergeFunctions.cpp') diff --git a/llvm/lib/Transforms/IPO/MergeFunctions.cpp b/llvm/lib/Transforms/IPO/MergeFunctions.cpp index 622a9b529cf..74bb2c85ced 100644 --- a/llvm/lib/Transforms/IPO/MergeFunctions.cpp +++ b/llvm/lib/Transforms/IPO/MergeFunctions.cpp @@ -535,6 +535,7 @@ static LinkageCategory categorize(const Function *F) { case GlobalValue::WeakAnyLinkage: case GlobalValue::WeakODRLinkage: case GlobalValue::ExternalWeakLinkage: + case GlobalValue::LinkerPrivateWeakLinkage: return ExternalWeak; case GlobalValue::ExternalLinkage: -- cgit v1.2.3