Add {,ELF,MachO}TargetInfo.

llvm-svn: 173117
diff --git a/lld/lib/Core/TargetInfo.cpp b/lld/lib/Core/TargetInfo.cpp
new file mode 100644
index 0000000..da834fb
--- /dev/null
+++ b/lld/lib/Core/TargetInfo.cpp
@@ -0,0 +1,35 @@
+//===- lib/Core/TargetInfo.cpp - Linker Target Info Interface -------------===//
+//
+//                             The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lld/Core/TargetInfo.h"
+
+#include "lld/Core/LinkerOptions.h"
+
+#include "llvm/ADT/Triple.h"
+
+namespace lld {
+TargetInfo::~TargetInfo() {}
+
+llvm::Triple TargetInfo::getTriple() const {
+  return llvm::Triple(llvm::Triple::normalize(_options._target));
+}
+
+bool TargetInfo::is64Bits() const {
+  return getTriple().isArch64Bit();
+}
+
+bool TargetInfo::isLittleEndian() const {
+  // TODO: Do this properly. It is not defined purely by arch.
+  return true;
+}
+
+StringRef TargetInfo::getEntry() const {
+  return _options._entrySymbol;
+}
+} // end namespace lld