1 files changed, 42 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/makedev.c b/libc/sysdeps/linux/common/makedev.c
new file mode 100644
index 000000000..d7761671b
--- /dev/null
+++ b/libc/sysdeps/linux/common/makedev.c
@@ -0,0 +1,42 @@
+/* Definitions of functions to access `dev_t' values.
+   Copyright (C) 2003-2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <endian.h>
+#include <sys/sysmacros.h>
+
+unsigned int
+gnu_dev_major (unsigned long long int dev)
+{
+  return ((dev >> 8) & 0xfff) | ((unsigned int) (dev >> 32) & ~0xfff);
+}
+libc_hidden_def(gnu_dev_major)
+
+unsigned int
+gnu_dev_minor (unsigned long long int dev)
+{
+  return (dev & 0xff) | ((unsigned int) (dev >> 12) & ~0xff);
+}
+libc_hidden_def(gnu_dev_minor)
+
+unsigned long long int
+gnu_dev_makedev (unsigned int major, unsigned int minor)
+{
+  return ((minor & 0xff) | ((major & 0xfff) << 8)
+	  | (((unsigned long long int) (minor & ~0xff)) << 12)
+	  | (((unsigned long long int) (major & ~0xfff)) << 32));
+}