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-rw-r--r--sysdeps/generic/bits/byteswap.h43
-rw-r--r--sysdeps/generic/bits/htontoh.h23
2 files changed, 43 insertions, 23 deletions
diff --git a/sysdeps/generic/bits/byteswap.h b/sysdeps/generic/bits/byteswap.h
new file mode 100644
index 0000000000..9404cc452e
--- /dev/null
+++ b/sysdeps/generic/bits/byteswap.h
@@ -0,0 +1,43 @@
+/* Macros to swap the order of bytes in integer values.
+ Copyright (C) 1997 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
+/* Swap bytes in 16 bit value. */
+#define __bswap_16(x) \
+ ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+
+/* Swap bytes in 32 bit value. */
+#define __bswap_32(x) \
+ ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
+ (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
+
+#if defined __GNUC__ && __GNUC__ >= 2
+/* Swap bytes in 64 bit value. */
+# define __bswap_64(x) \
+ ({ union { unsigned long long int __ll; \
+ unsigned long int __l[2]; } __v, __r; \
+ __v.__ll = (x); \
+ __r.__l[0] = __bswap_32 (__v.__l[1]); \
+ __r.__l[1] = __bswap_32 (__v.__l[0]); \
+ __r.__ll; })
+#endif
+
+#endif /* bits/byteswap.h */
diff --git a/sysdeps/generic/bits/htontoh.h b/sysdeps/generic/bits/htontoh.h
deleted file mode 100644
index fa4efed867..0000000000
--- a/sysdeps/generic/bits/htontoh.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* Copyright (C) 1997 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#ifndef _NETINET_IN_H
-# error "Don't include this file directly, use <netinet/in.h>"
-#endif
-
-/* We cannot give generic optimized versions here. */