COFF: Teach llvm-objdump how to dump DLL forwarder symbols.

llvm-svn: 257539

1 files changed, 24 insertions, 0 deletions

diff --git a/llvm/lib/Object/COFFObjectFile.cpp b/llvm/lib/Object/COFFObjectFile.cpp
index 1f2111759a0..4cd6aff5f17 100644
--- a/llvm/lib/Object/COFFObjectFile.cpp
+++ b/llvm/lib/Object/COFFObjectFile.cpp
@@ -1336,6 +1336,30 @@ ExportDirectoryEntryRef::getSymbolName(StringRef &Result) const {
   return std::error_code();
 }
 
+std::error_code ExportDirectoryEntryRef::isForwarder(bool &Result) const {
+  const data_directory *DataEntry;
+  if (auto EC = OwningObject->getDataDirectory(COFF::EXPORT_TABLE, DataEntry))
+    return EC;
+  uint32_t RVA;
+  if (auto EC = getExportRVA(RVA))
+    return EC;
+  uint32_t Begin = DataEntry->RelativeVirtualAddress;
+  uint32_t End = DataEntry->RelativeVirtualAddress + DataEntry->Size;
+  Result = (Begin <= RVA && RVA < End);
+  return std::error_code();
+}
+
+std::error_code ExportDirectoryEntryRef::getForwardTo(StringRef &Result) const {
+  uint32_t RVA;
+  if (auto EC = getExportRVA(RVA))
+    return EC;
+  uintptr_t IntPtr = 0;
+  if (auto EC = OwningObject->getRvaPtr(RVA, IntPtr))
+    return EC;
+  Result = StringRef(reinterpret_cast<const char *>(IntPtr));
+  return std::error_code();
+}
+
 bool ImportedSymbolRef::
 operator==(const ImportedSymbolRef &Other) const {
   return Entry32 == Other.Entry32 && Entry64 == Other.Entry64