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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 /include/llvm-c | |
| parent | 0f66d4be04787906fb3a40ff572bc8c16a41bb96 (diff) | |
| download | external_llvm-5e721d768254a920b78b9129d79a84c0163cb3f4.zip external_llvm-5e721d768254a920b78b9129d79a84c0163cb3f4.tar.gz external_llvm-5e721d768254a920b78b9129d79a84c0163cb3f4.tar.bz2 | |
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 'include/llvm-c')
| -rw-r--r-- | include/llvm-c/Core.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/llvm-c/Core.h b/include/llvm-c/Core.h index d665c89..117f2d6 100644 --- a/include/llvm-c/Core.h +++ b/include/llvm-c/Core.h @@ -226,7 +226,8 @@ typedef enum { LLVMExternalWeakLinkage,/**< ExternalWeak linkage description */ LLVMGhostLinkage, /**< Obsolete */ LLVMCommonLinkage, /**< Tentative definitions */ - LLVMLinkerPrivateLinkage /**< Like Private, but linker removes. */ + LLVMLinkerPrivateLinkage, /**< Like Private, but linker removes. */ + LLVMLinkerPrivateWeakLinkage /**< Like LinkerPrivate, but is weak. */ } LLVMLinkage; typedef enum { |