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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.

llvm-svn: 76385
This commit is contained in:
Bill Wendling
2009-07-20 01:03:30 +00:00
parent 88f35c870b
commit a3c6f6bffa
29 changed files with 199 additions and 96 deletions
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27
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
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@@ -281,19 +281,20 @@ static unsigned getEncodedLinkage(const GlobalValue *GV) {
switch (GV->getLinkage()) {
default: llvm_unreachable("Invalid linkage!");
case GlobalValue::GhostLinkage: // Map ghost linkage onto external.
case GlobalValue::ExternalLinkage: return 0;
case GlobalValue::WeakAnyLinkage: return 1;
case GlobalValue::AppendingLinkage: return 2;
case GlobalValue::InternalLinkage: return 3;
case GlobalValue::LinkOnceAnyLinkage: return 4;
case GlobalValue::DLLImportLinkage: return 5;
case GlobalValue::DLLExportLinkage: return 6;
case GlobalValue::ExternalWeakLinkage: return 7;
case GlobalValue::CommonLinkage: return 8;
case GlobalValue::PrivateLinkage: return 9;
case GlobalValue::WeakODRLinkage: return 10;
case GlobalValue::LinkOnceODRLinkage: return 11;
case GlobalValue::AvailableExternallyLinkage: return 12;
case GlobalValue::ExternalLinkage: return 0;
case GlobalValue::WeakAnyLinkage: return 1;
case GlobalValue::AppendingLinkage: return 2;
case GlobalValue::InternalLinkage: return 3;
case GlobalValue::LinkOnceAnyLinkage: return 4;
case GlobalValue::DLLImportLinkage: return 5;
case GlobalValue::DLLExportLinkage: return 6;
case GlobalValue::ExternalWeakLinkage: return 7;
case GlobalValue::CommonLinkage: return 8;
case GlobalValue::PrivateLinkage: return 9;
case GlobalValue::WeakODRLinkage: return 10;
case GlobalValue::LinkOnceODRLinkage: return 11;
case GlobalValue::AvailableExternallyLinkage: return 12;
case GlobalValue::LinkerPrivateLinkage: return 13;
}
}