1 files changed, 116 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/machine/i386/include/endian.h b/newlib/libc/sys/linux/machine/i386/include/endian.h
new file mode 100644
index 000000000..aa9cd90a3
--- /dev/null
+++ b/newlib/libc/sys/linux/machine/i386/include/endian.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 1987, 1991 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the University of
+ *      California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      from: @(#)endian.h      7.8 (Berkeley) 4/3/91
+ *      $Id$
+ */
+
+#ifndef _MACHINE_ENDIAN_H_
+#define _MACHINE_ENDIAN_H_
+
+/*
+ * Define the order of 32-bit words in 64-bit words.
+ */
+#define _QUAD_HIGHWORD 1
+#define _QUAD_LOWWORD 0
+
+/*
+ * Definitions for byte order, according to byte significance from low
+ * address to high.
+ */
+#define LITTLE_ENDIAN   1234    /* LSB first: i386, vax */
+#define BIG_ENDIAN      4321    /* MSB first: 68000, ibm, net */
+#define PDP_ENDIAN      3412    /* LSB first in word, MSW first in long */
+
+#define BYTE_ORDER      LITTLE_ENDIAN
+
+#ifndef KERNEL
+#include <sys/cdefs.h>
+#endif
+
+#include <sys/types.h>
+
+__BEGIN_DECLS
+unsigned long   htonl __P((unsigned long));
+unsigned short  htons __P((unsigned short));
+unsigned long   ntohl __P((unsigned long));
+unsigned short  ntohs __P((unsigned short));
+__END_DECLS
+
+#define __word_swap_long(x) \
+__extension__ ({ register u_long __X = (x); \
+   __asm ("rorl $16, %1" \
+        : "=r" (__X) \
+        : "0" (__X)); \
+   __X; })
+
+#if defined(KERNEL) && (defined(I486_CPU) || defined(I586_CPU) || defined(I686_CPU)) && !defined(I386_CPU)
+
+#define __byte_swap_long(x) \
+__extension__ ({ register u_long __X = (x); \
+   __asm ("bswap %0" \
+        : "=r" (__X) \
+        : "0" (__X)); \
+   __X; })
+#else
+
+#define __byte_swap_long(x) \
+__extension__ ({ register u_long __X = (x); \
+   __asm ("xchgb %h1, %b1\n\trorl $16, %1\n\txchgb %h1, %b1" \
+        : "=q" (__X) \
+        : "0" (__X)); \
+   __X; })
+#endif
+
+#define __byte_swap_word(x) \
+__extension__ ({ register u_short __X = (x); \
+   __asm ("xchgb %h1, %b1" \
+        : "=q" (__X) \
+        : "0" (__X)); \
+   __X; })
+
+/*
+ * Macros for network/external number representation conversion.
+ */
+#ifdef __GNUC__
+#define ntohl   __byte_swap_long
+#define ntohs   __byte_swap_word
+#define htonl   __byte_swap_long
+#define htons   __byte_swap_word
+#endif
+
+#define NTOHL(x)        ((x) = ntohl((u_long)(x)))
+#define NTOHS(x)        ((x) = ntohs((u_short)(x)))
+#define HTONL(x)        ((x) = htonl((u_long)(x)))
+#define HTONS(x)        ((x) = htons((u_short)(x)))
+
+#endif /* !_MACHINE_ENDIAN_H_ */