1 files changed, 68 insertions, 0 deletions
diff --git a/dwarflint/low.cc b/dwarflint/low.cc
new file mode 100644
index 00000000..34dd76e7
--- /dev/null
+++ b/dwarflint/low.cc
@@ -0,0 +1,68 @@
+/* Pedantic checking of DWARF files
+   Copyright (C) 2008, 2009, 2010 Red Hat, Inc.
+   This file is part of Red Hat elfutils.
+
+   Red Hat elfutils is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by the
+   Free Software Foundation; version 2 of the License.
+
+   Red Hat 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 a copy of the GNU General Public License along
+   with Red Hat elfutils; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+   Red Hat elfutils is an included package of the Open Invention Network.
+   An included package of the Open Invention Network is a package for which
+   Open Invention Network licensees cross-license their patents.  No patent
+   license is granted, either expressly or impliedly, by designation as an
+   included package.  Should you wish to participate in the Open Invention
+   Network licensing program, please visit www.openinventionnetwork.com
+   <http://www.openinventionnetwork.com>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "low.h"
+#include "messages.h"
+#include <stdarg.h>
+
+bool
+address_aligned (uint64_t addr, uint64_t align)
+{
+  return align < 2 || (addr % align == 0);
+}
+
+bool
+necessary_alignment (uint64_t start, uint64_t length, uint64_t align)
+{
+  return address_aligned (start + length, align) && length < align;
+}
+
+bool
+supported_version (unsigned version,
+		   size_t num_supported, struct where *where, ...)
+{
+  bool retval = false;
+  va_list ap;
+  va_start (ap, where);
+  for (size_t i = 0; i < num_supported; ++i)
+    {
+      unsigned v = va_arg (ap, unsigned);
+      if (version == v)
+	{
+	  retval = true;
+	  break;
+	}
+    }
+  va_end (ap);
+
+  if (!retval)
+    wr_error (where, ": unsupported version %d.\n", version);
+
+  return retval;
+}