Index: ELF/MarkLive.cpp
===================================================================
--- ELF/MarkLive.cpp
+++ ELF/MarkLive.cpp
@@ -69,7 +69,7 @@
                                         RelT &Rel) {
   SymbolBody &B = Sec.getFile()->getRelocTargetSym(Rel);
   auto *D = dyn_cast<DefinedRegular<ELFT>>(&B);
-  if (!D || !D->Section)
+  if (!D || !D->Section || D->Section == &InputSectionBase<ELFT>::Discarded)
     return {nullptr, 0};
   typename ELFT::uint Offset = D->Value;
   if (D->isSection())
@@ -176,7 +176,8 @@
     if (isValidCIdentifier(S))
       return true;
 
-    return S.startswith(".ctors") || S.startswith(".dtors") ||
+    return S.startswith(".comment") || S.startswith(".ctors") ||
+           S.startswith(".debug") || S.startswith(".dtors") ||
            S.startswith(".init") || S.startswith(".fini") ||
            S.startswith(".jcr");
   }
Index: test/ELF/gc-sections.s
===================================================================
--- test/ELF/gc-sections.s
+++ test/ELF/gc-sections.s
@@ -14,6 +14,8 @@
 # NOGC: Name: .dtors
 # NOGC: Name: .init
 # NOGC: Name: .fini
+# NOGC: Name: .debug_pubtypes
+# NOGC: Name: .comment
 # NOGC: Name: a
 # NOGC: Name: b
 # NOGC: Name: c
@@ -100,3 +102,9 @@
 
 .section .eh_frame,"a",@unwind
   .quad 0
+
+.section .debug_pubtypes,"",@progbits
+  .quad 0
+
+.section .comment,"MS",@progbits,8
+  .quad 0