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Add plumbing for the `linker_private' linkage type. This type is meant for

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"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.

This is plumbing, so we don't have a use of it yet. More to come, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76385 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2009-07-20 01:03:30 +00:00
parent 3f189a3eb4
commit 3d10a5a757
29 changed files with 199 additions and 96 deletions
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3
lib/Linker/LinkModules.cpp
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@@ -709,6 +709,9 @@ CalculateAliasLinkage(const GlobalValue *SGV, const GlobalValue *DGV) {
else if (SL == GlobalValue::InternalLinkage &&
DL == GlobalValue::InternalLinkage)
return GlobalValue::InternalLinkage;
else if (SL == GlobalValue::LinkerPrivateLinkage &&
DL == GlobalValue::LinkerPrivateLinkage)
return GlobalValue::LinkerPrivateLinkage;
else {
assert (SL == GlobalValue::PrivateLinkage &&
DL == GlobalValue::PrivateLinkage && "Unexpected linkage type");