1 files changed, 48 insertions, 0 deletions
diff --git a/tools/llvm-readobj/Error.h b/tools/llvm-readobj/Error.h
new file mode 100644
index 0000000000..cf68da89c1
--- /dev/null
+++ b/tools/llvm-readobj/Error.h
@@ -0,0 +1,48 @@
+//===- Error.h - system_error extensions for llvm-readobj -------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This declares a new error_category for the llvm-readobj tool.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_READOBJ_ERROR_H
+#define LLVM_READOBJ_ERROR_H
+
+#include "llvm/Support/system_error.h"
+
+namespace llvm {
+
+const error_category &readobj_category();
+
+struct readobj_error {
+  enum _ {
+    success = 0,
+    file_not_found,
+    unsupported_file_format,
+    unrecognized_file_format,
+    unsupported_obj_file_format,
+    unknown_symbol
+  };
+  _ v_;
+
+  readobj_error(_ v) : v_(v) {}
+  explicit readobj_error(int v) : v_(_(v)) {}
+  operator int() const {return v_;}
+};
+
+inline error_code make_error_code(readobj_error e) {
+  return error_code(static_cast<int>(e), readobj_category());
+}
+
+template <> struct is_error_code_enum<readobj_error> : true_type { };
+template <> struct is_error_code_enum<readobj_error::_> : true_type { };
+
+} // namespace llvm
+
+#endif