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authorBill Wendling <isanbard@gmail.com>2010-07-01 21:55:59 +0000
committerBill Wendling <isanbard@gmail.com>2010-07-01 21:55:59 +0000
commit5e721d768254a920b78b9129d79a84c0163cb3f4 (patch)
tree53384abb48251190c5f1398defc48763367a7355 /tools
parent0f66d4be04787906fb3a40ff572bc8c16a41bb96 (diff)
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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 'tools')
-rw-r--r--tools/llvm-nm/llvm-nm.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/llvm-nm/llvm-nm.cpp b/tools/llvm-nm/llvm-nm.cpp
index 2baf532..fd7e7f6 100644
--- a/tools/llvm-nm/llvm-nm.cpp
+++ b/tools/llvm-nm/llvm-nm.cpp
@@ -89,7 +89,8 @@ static char TypeCharForSymbol(GlobalValue &GV) {
static void DumpSymbolNameForGlobalValue(GlobalValue &GV) {
// Private linkage and available_externally linkage don't exist in symtab.
if (GV.hasPrivateLinkage() || GV.hasLinkerPrivateLinkage() ||
- GV.hasAvailableExternallyLinkage()) return;
+ GV.hasLinkerPrivateWeakLinkage() || GV.hasAvailableExternallyLinkage())
+ return;
const std::string SymbolAddrStr = " "; // Not used yet...
char TypeChar = TypeCharForSymbol(GV);