1 files changed, 79 insertions, 0 deletions
diff --git a/tool/headers/libkern/arm/_OSByteOrder.h b/tool/headers/libkern/arm/_OSByteOrder.h
new file mode 100644
index 000000000..bb4b152e1
--- /dev/null
+++ b/tool/headers/libkern/arm/_OSByteOrder.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+#ifndef _OS__OSBYTEORDERI386_H
+#define _OS__OSBYTEORDERI386_H
+
+#if !defined(__DARWIN_OS_INLINE)
+# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+#        define __DARWIN_OS_INLINE static inline
+# elif defined(__MWERKS__) || defined(__cplusplus)
+#        define __DARWIN_OS_INLINE static inline
+# else
+#        define __DARWIN_OS_INLINE static __inline__
+# endif
+#endif
+
+/* Generic byte swapping functions. */
+
+__DARWIN_OS_INLINE
+__uint16_t
+_OSSwapInt16(
+    __uint16_t        _data
+)
+{
+    return ((_data << 8) | (_data >> 8));
+}
+
+__DARWIN_OS_INLINE
+__uint32_t
+_OSSwapInt32(
+    __uint32_t        _data
+)
+{
+     uint32_t   tmp = _data;
+     __asm volatile ("EOR   %1, %0, %0, ROR #16\n"
+                   "BIC   %1, %1, #0xff0000\n"
+                   "MOV   %0, %0, ROR #8\n"
+                   "EOR   %0, %0, %1, LSR #8\n"
+                   : "=r" (_data), "=r" (tmp)
+                   : "0" (_data), "1" (tmp));
+
+     return _data;
+}
+
+__DARWIN_OS_INLINE
+__uint64_t
+_OSSwapInt64(
+    __uint64_t        _data
+)
+{
+    return (__uint64_t) _OSSwapInt32(_data & 0xffffffff) << 32 | _OSSwapInt32(_data >> 32 & 0xffffff);
+}
+
+#endif /* ! _OS__OSBYTEORDERI386_H */