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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 /test/Feature | |
| 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 'test/Feature')
| -rw-r--r-- | test/Feature/linker_private_linkages.ll | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/test/Feature/linker_private_linkages.ll b/test/Feature/linker_private_linkages.ll new file mode 100644 index 0000000000..19bcbb40aa --- /dev/null +++ b/test/Feature/linker_private_linkages.ll @@ -0,0 +1,6 @@ +; RUN: llvm-as < %s | llvm-dis > %t1.ll +; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll +; RUN: diff %t1.ll %t2.ll + +@foo = linker_private hidden global i32 0 +@bar = linker_private_weak hidden global i32 0 |