2008-01-30 Thomas Schwinge <tschwinge@gnu.org>

	* amd64/bits/endian.h: New file, from today's glibc CVS HEAD.
	* amd64/Makefile.am (noinst_HEADERS): Add it.
	* ia32/bits/endian.h: New file, from today's glibc CVS HEAD.
	* ia32/Makefile.am (noinst_HEADERS): Add it.
	* endian.h: New file, from today's glibc CVS HEAD.
	* Makefile.am (noinst_HEADERS): Add it.
	* headers.m4: Link them.
	* README: Document them.

9 files changed, 92 insertions, 1 deletions

diff --git a/platform/ChangeLog b/platform/ChangeLog
index 926b4f5..edfebef 100644
--- a/platform/ChangeLog
+++ b/platform/ChangeLog
@@ -1,5 +1,14 @@
 2008-01-30  Thomas Schwinge  <tschwinge@gnu.org>
 
+	* amd64/bits/endian.h: New file, from today's glibc CVS HEAD.
+	* amd64/Makefile.am (noinst_HEADERS): Add it.
+	* ia32/bits/endian.h: New file, from today's glibc CVS HEAD.
+	* ia32/Makefile.am (noinst_HEADERS): Add it.
+	* endian.h: New file, from today's glibc CVS HEAD.
+	* Makefile.am (noinst_HEADERS): Add it.
+	* headers.m4: Link them.
+	* README: Document them.
+
 	* amd64/bits/wordsize.h: New file, from today's glibc CVS HEAD.
 	* amd64/Makefile.am (noinst_HEADERS): Add it.
 	* ia32/bits/wordsize.h: New file, from today's glibc CVS HEAD.
diff --git a/platform/Makefile.am b/platform/Makefile.am
index 27197e5..3d2b052 100644
--- a/platform/Makefile.am
+++ b/platform/Makefile.am
@@ -39,4 +39,6 @@ endif
 SUBDIRS =  $(ARCH_SUBDIR)
 
 # Main platform header files.
-noinst_HEADERS = atomic.h
+noinst_HEADERS = \
+	atomic.h \
+	endian.h
diff --git a/platform/README b/platform/README
index 561e9c9..8eef954 100644
--- a/platform/README
+++ b/platform/README
@@ -19,4 +19,8 @@ CVS snapshot from 2008-01-30:
 ${glibc}/sysdeps/wordsize-32/bits/wordsize.h	ia32/bits/wordsize.h
 ${glibc}/sysdeps/x86_64/bits/wordsize.h		amd64/bits/wordsize.h
 
+${glibc}/string/endian.h			endian.h
+${glibc}/sysdeps/i386/bits/endian.h		ia32/bits/endian.h
+${glibc}/sysdeps/x86_64/bits/endian.h		amd64/bits/endian.h
+
 Other architectures not supported for now.
diff --git a/platform/amd64/Makefile.am b/platform/amd64/Makefile.am
index 7ed7bc5..4d9b943 100644
--- a/platform/amd64/Makefile.am
+++ b/platform/amd64/Makefile.am
@@ -20,4 +20,5 @@
 
 noinst_HEADERS = \
 	bits/atomic.h \
+	bits/endian.h \
 	bits/wordsize.h
diff --git a/platform/amd64/bits/endian.h b/platform/amd64/bits/endian.h
new file mode 100644
index 0000000..2f59ead
--- /dev/null
+++ b/platform/amd64/bits/endian.h
@@ -0,0 +1,7 @@
+/* x86_64 is little-endian.  */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#define __BYTE_ORDER __LITTLE_ENDIAN
diff --git a/platform/endian.h b/platform/endian.h
new file mode 100644
index 0000000..2f7bce1
--- /dev/null
+++ b/platform/endian.h
@@ -0,0 +1,58 @@
+/* Copyright (C) 1992, 1996, 1997, 2000 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	_ENDIAN_H
+#define	_ENDIAN_H	1
+
+#include <features.h>
+
+/* Definitions for byte order, according to significance of bytes,
+   from low addresses to high addresses.  The value is what you get by
+   putting '4' in the most significant byte, '3' in the second most
+   significant byte, '2' in the second least significant byte, and '1'
+   in the least significant byte, and then writing down one digit for
+   each byte, starting with the byte at the lowest address at the left,
+   and proceeding to the byte with the highest address at the right.  */
+
+#define	__LITTLE_ENDIAN	1234
+#define	__BIG_ENDIAN	4321
+#define	__PDP_ENDIAN	3412
+
+/* This file defines `__BYTE_ORDER' for the particular machine.  */
+#include <bits/endian.h>
+
+/* Some machines may need to use a different endianness for floating point
+   values.  */
+#ifndef __FLOAT_WORD_ORDER
+# define __FLOAT_WORD_ORDER __BYTE_ORDER
+#endif
+
+#ifdef	__USE_BSD
+# define LITTLE_ENDIAN	__LITTLE_ENDIAN
+# define BIG_ENDIAN	__BIG_ENDIAN
+# define PDP_ENDIAN	__PDP_ENDIAN
+# define BYTE_ORDER	__BYTE_ORDER
+#endif
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+# define __LONG_LONG_PAIR(HI, LO) LO, HI
+#elif __BYTE_ORDER == __BIG_ENDIAN
+# define __LONG_LONG_PAIR(HI, LO) HI, LO
+#endif
+
+#endif	/* endian.h */
diff --git a/platform/headers.m4 b/platform/headers.m4
index 8c859e7..7ec39af 100644
--- a/platform/headers.m4
+++ b/platform/headers.m4
@@ -17,4 +17,6 @@ AC_CONFIG_LINKS([
   include/bits/atomic.h:platform/${arch}/bits/atomic.h
   include/bits/wordsize.h:platform/${arch}/bits/wordsize.h
   include/compiler.h:platform/compiler.h
+  include/endian.h:platform/endian.h
+  include/bits/endian.h:platform/${arch}/bits/endian.h
 ])
diff --git a/platform/ia32/Makefile.am b/platform/ia32/Makefile.am
index 86952be..7226be1 100644
--- a/platform/ia32/Makefile.am
+++ b/platform/ia32/Makefile.am
@@ -20,4 +20,5 @@
 
 noinst_HEADERS = \
 	bits/atomic.h \
+	bits/endian.h \
 	bits/wordsize.h
diff --git a/platform/ia32/bits/endian.h b/platform/ia32/bits/endian.h
new file mode 100644
index 0000000..54bd9d1
--- /dev/null
+++ b/platform/ia32/bits/endian.h
@@ -0,0 +1,7 @@
+/* i386 is little-endian.  */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#define __BYTE_ORDER __LITTLE_ENDIAN