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Introducing the "linker_weak" linkage type. This will be used for Objective-C

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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".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107205 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2010-06-29 21:24:00 +00:00
parent 147b7cad2f
commit 207855cff9
26 changed files with 94 additions and 39 deletions
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5
lib/AsmParser/LLToken.h
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@@ -37,8 +37,9 @@ namespace lltok {
kw_declare, kw_define,
kw_global, kw_constant,
kw_private, kw_linker_private, kw_internal, kw_linkonce, kw_linkonce_odr,
kw_weak, kw_weak_odr, kw_appending, kw_dllimport, kw_dllexport, kw_common,
kw_private, kw_linker_private, kw_linker_weak, kw_internal, kw_linkonce,
kw_linkonce_odr, kw_weak, kw_weak_odr, kw_appending, kw_dllimport,
kw_dllexport, kw_common,
kw_available_externally,
kw_default, kw_hidden, kw_protected,
kw_extern_weak,