Weak linkage

LucasSte · Nov 11, 2024 · 22100ea · 22100ea
1 parent db9e6f2
commit 22100ea
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diff --git a/lld/ELF/Driver.cpp b/lld/ELF/Driver.cpp
@@ -2642,6 +2642,7 @@ static void optimizeSBF() {
 
         out << "\n\nAfter codegen\n";
         for (auto &Func: mods[0]->functions()) {
+            Func.setLinkage(GlobalValue::LinkageTypes::ExternalWeakLinkage);
             out << Func.getName().str() << "\n";
         }
 

diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -682,6 +682,7 @@ void AsmPrinter::emitLinkage(const GlobalValue *GV, MCSymbol *GVSym) const {
   case GlobalValue::InternalLinkage:
     return;
   case GlobalValue::ExternalWeakLinkage:
+      return;
   case GlobalValue::AvailableExternallyLinkage:
   case GlobalValue::AppendingLinkage:
     llvm_unreachable("Should never emit this");