Add support for 'weak' linkage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9171 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index af33e4b..a34f3f7 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -684,6 +684,8 @@
printType(Out, I->getType()->getElementType(), Mang->getValueName(I));
if (I->hasLinkOnceLinkage())
Out << " __attribute__((common))";
+ else if (I->hasWeakLinkage())
+ Out << " __attribute__((weak))";
if (!I->getInitializer()->isNullValue()) {
Out << " = " ;
writeOperand(I->getInitializer());
@@ -893,6 +895,8 @@
FunctionInnards << ")";
// Print out the return type and the entire signature for that matter
printType(Out, F->getReturnType(), FunctionInnards.str());
+
+ if (F->hasWeakLinkage()) Out << " __attribute((weak))";
}
void CWriter::printFunction(Function *F) {