sys/sysmacros.h: Import from musl

Copied as is from the official musl git mirror
git://git.musl-libc.org/musl, commit 6fcb440d.

Signed-off-by: Vlad-Andrei Badoiu <vlad_andrei.badoiu@stud.acs.upb.ro>
Reviewed-by: Costin Lupu <costin.lupu@cs.pub.ro>

diff --git a/musl-imported/include/sys/sysmacros.h b/musl-imported/include/sys/sysmacros.h
new file mode 100644 (file)
index 0000000..0efdc6b
--- /dev/null
+++ b/musl-imported/include/sys/sysmacros.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: MIT */
+/* ----------------------------------------------------------------------
+ * Copyright © 2005-2014 Rich Felker, et al.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * ----------------------------------------------------------------------
+ */
+/* Taken from musl */
+
+#ifndef _SYS_SYSMACROS_H
+#define _SYS_SYSMACROS_H
+
+#define major(x) \
+       ((unsigned)( (((x)>>31>>1) & 0xfffff000) | (((x)>>8) & 0x00000fff) ))
+#define minor(x) \
+       ((unsigned)( (((x)>>12) & 0xffffff00) | ((x) & 0x000000ff) ))
+
+#define makedev(x,y) ( \
+        (((x)&0xfffff000ULL) << 32) | \
+       (((x)&0x00000fffULL) << 8) | \
+        (((y)&0xffffff00ULL) << 12) | \
+       (((y)&0x000000ffULL)) )
+
+#endif