diff --git a/libdw/dwarf_linesrc.c b/libdw/dwarf_linesrc.c
new file mode 100644
index 0000000..27b5990
--- /dev/null
+++ b/libdw/dwarf_linesrc.c
@@ -0,0 +1,56 @@
+/* Find line information for address.
+   Copyright (C) 2004 Red Hat, Inc.
+   This file is part of elfutils.
+   Written by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+   This file is free software; you can redistribute it and/or modify
+   it under the terms of either
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at
+       your option) any later version
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at
+       your option) any later version
+
+   or both in parallel, as here.
+
+   elfutils is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "libdwP.h"
+
+
+const char *
+dwarf_linesrc (Dwarf_Line *line, Dwarf_Word *mtime, Dwarf_Word *length)
+{
+  if (line == NULL)
+    return NULL;
+
+  if (line->file >= line->files->nfiles)
+    {
+      __libdw_seterrno (DWARF_E_INVALID_DWARF);
+      return NULL;
+    }
+
+  if (mtime != NULL)
+    *mtime = line->files->info[line->file].mtime;
+
+  if (length != NULL)
+    *length = line->files->info[line->file].length;
+
+  return line->files->info[line->file].name;
+}