ld64-264.3.101.tar.gz

[apple/ld64.git] / src / ld / SymbolTable.cpp

diff --git a/src/ld/SymbolTable.cpp b/src/ld/SymbolTable.cpp
index 60147796dddd4e93a2a6d6d91076537aacedc575..4be0c5e264a1b10903b7cc1ff09aeb896540422e 100644 (file)
--- a/src/ld/SymbolTable.cpp
+++ b/src/ld/SymbolTable.cpp
@@ -566,6 +566,18 @@ void SymbolTable::tentativeDefs(std::vector<const char*>& tents)
 }
 
 
+void SymbolTable::mustPreserveForBitcode(std::unordered_set<const char*>& syms)
+{
+       // return all names in _byNameTable that have no associated atom
+       for (const auto &entry: _byNameTable) {
+               const char* name = entry.first;
+               const ld::Atom* atom = _indirectBindingTable[entry.second];
+               if ( (atom == NULL) || (atom->definition() == ld::Atom::definitionProxy) )
+                       syms.insert(name);
+       }
+}
+
+
 bool SymbolTable::hasName(const char* name)                    
 { 
        NameToSlot::iterator pos = _byNameTable.find(name);