llvm-objdump: support dumping AUX records for weak externals

This is a support COFF feature.  Ensure that we can display the weak externals
auxiliary symbol.  It contains useful information (such as the default binding
and how to resolve the symbol).

llvm-svn: 270648

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/tools/llvm-objdump/COFFDump.cpp b/llvm/tools/llvm-objdump/COFFDump.cpp
index 6b98b72b5c1..3b72f9bcad7 100644
--- a/llvm/tools/llvm-objdump/COFFDump.cpp
+++ b/llvm/tools/llvm-objdump/COFFDump.cpp
@@ -653,6 +653,12 @@ void llvm::printCOFFSymbolTable(const COFFObjectFile *coff) {
 
         SI = SI + Symbol->getNumberOfAuxSymbols();
         break;
+      } else if (Symbol->isWeakExternal()) {
+        const coff_aux_weak_external *awe;
+        error(coff->getAuxSymbol<coff_aux_weak_external>(SI + 1, awe));
+
+        outs() << "AUX " << format("tagndx %d type %d\n", awe->TagIndex,
+                                   awe->Characteristics);
       } else {
         outs() << "AUX Unknown\n";
       }