diff options
| author | Bill Wendling <isanbard@gmail.com> | 2010-06-29 21:24:00 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2010-06-29 21:24:00 +0000 |
| commit | 1767723dbe26e7149232d5a3a34f3be543ba5bb6 (patch) | |
| tree | 014723774a0353e41ea37a01f915a556bc29e394 /llvm/lib/Transforms/IPO/MergeFunctions.cpp | |
| parent | 30689a3a7fa0cf71b4c52c702360f9f51bbab1fa (diff) | |
| download | bcm5719-llvm-1767723dbe26e7149232d5a3a34f3be543ba5bb6.tar.gz bcm5719-llvm-1767723dbe26e7149232d5a3a34f3be543ba5bb6.zip | |
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
Diffstat (limited to 'llvm/lib/Transforms/IPO/MergeFunctions.cpp')
| -rw-r--r-- | llvm/lib/Transforms/IPO/MergeFunctions.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/MergeFunctions.cpp b/llvm/lib/Transforms/IPO/MergeFunctions.cpp index 622a9b529cf..7bb4d9d74f4 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::LinkerWeakLinkage: return ExternalWeak; case GlobalValue::ExternalLinkage: |
