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| author | Bill Wendling <isanbard@gmail.com> | 2010-07-01 21:55:59 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2010-07-01 21:55:59 +0000 |
| commit | 5e721d768254a920b78b9129d79a84c0163cb3f4 (patch) | |
| tree | 53384abb48251190c5f1398defc48763367a7355 /lib/Target/CppBackend | |
| parent | 0f66d4be04787906fb3a40ff572bc8c16a41bb96 (diff) | |
| download | llvm-5e721d768254a920b78b9129d79a84c0163cb3f4.tar.gz llvm-5e721d768254a920b78b9129d79a84c0163cb3f4.tar.bz2 llvm-5e721d768254a920b78b9129d79a84c0163cb3f4.tar.xz | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107433 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/CppBackend')
| -rw-r--r-- | lib/Target/CppBackend/CPPBackend.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/Target/CppBackend/CPPBackend.cpp b/lib/Target/CppBackend/CPPBackend.cpp index eda08e7a88..9056cefb5b 100644 --- a/lib/Target/CppBackend/CPPBackend.cpp +++ b/lib/Target/CppBackend/CPPBackend.cpp @@ -286,6 +286,8 @@ void CppWriter::printLinkageType(GlobalValue::LinkageTypes LT) { Out << "GlobalValue::PrivateLinkage"; break; case GlobalValue::LinkerPrivateLinkage: Out << "GlobalValue::LinkerPrivateLinkage"; break; + case GlobalValue::LinkerPrivateWeakLinkage: + Out << "GlobalValue::LinkerPrivateWeakLinkage"; break; case GlobalValue::AvailableExternallyLinkage: Out << "GlobalValue::AvailableExternallyLinkage "; break; case GlobalValue::LinkOnceAnyLinkage: |