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authorFelix Fietkau <nbd@openwrt.org>2011-07-02 06:49:56 +0000
committerFelix Fietkau <nbd@openwrt.org>2011-07-02 06:49:56 +0000
commitfc0863785a0200de0d0135abf5ce16a803e5b2d6 (patch)
tree4e0e16c202d1a3771f0bac76dcfc7a4a1c79fff5 /tools/include/sys/sysmacros.h
parentce6b3da88091c3b0d631c98604fe691b87760e26 (diff)
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add a portable version of sys/sysmacros.h and and let the kernel use the host include dir, fixes x86 builds on non-gnu systems
SVN-Revision: 27346
Diffstat (limited to 'tools/include/sys/sysmacros.h')
-rw-r--r--tools/include/sys/sysmacros.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/tools/include/sys/sysmacros.h b/tools/include/sys/sysmacros.h
new file mode 100644
index 0000000000..997d9286b6
--- /dev/null
+++ b/tools/include/sys/sysmacros.h
@@ -0,0 +1,56 @@
+/* Definitions of macros to access `dev_t' values.
+ Copyright (C) 1996, 1997, 1999, 2003, 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef __SYS_SYSMACROS_H
+#define __SYS_SYSMACROS_H 1
+
+static inline unsigned int
+__gnu_dev_major(unsigned long long int __dev)
+{
+ return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
+}
+
+static inline unsigned int
+__gnu_dev_minor(unsigned long long int __dev)
+{
+ return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
+}
+
+static inline 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));
+}
+
+/* Access the functions with their traditional names. */
+#ifndef major
+# define major(dev) __gnu_dev_major (dev)
+#endif
+
+#ifndef minor
+# define minor(dev) __gnu_dev_minor (dev)
+#endif
+
+#ifndef makedev
+# define makedev(maj, min) __gnu_dev_makedev (maj, min)
+#endif
+
+#endif /* sys/sysmacros.h */