From 1767723dbe26e7149232d5a3a34f3be543ba5bb6 Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Tue, 29 Jun 2010 21:24:00 +0000 Subject: Introducing the "linker_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. 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". llvm-svn: 107205 --- llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | 1 + 1 file changed, 1 insertion(+) (limited to 'llvm/lib/Bitcode/Writer') diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp index cdeb854d7d1..4655a65e195 100644 --- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -313,6 +313,7 @@ static unsigned getEncodedLinkage(const GlobalValue *GV) { case GlobalValue::LinkOnceODRLinkage: return 11; case GlobalValue::AvailableExternallyLinkage: return 12; case GlobalValue::LinkerPrivateLinkage: return 13; + case GlobalValue::LinkerWeakLinkage: return 14; } } -- cgit v1.2.3