nds32: add support for new architecture

Add support for Andes Technology NDS32 architecture.
See here http://www.andestech.com/en/index/index.htm for more
informaton. Verification of the port from an older uClibc
port was done on a sponsored AG101p board.

The testsuite only has 5 errors, three are related to
an existing bug in dlclose() with LT.old, also happening
on cris32 and m68k.

Failures to fallocate/posix_fallocate are unresolved.

Thanks to Andes Technology sponsoring the hardware and
being very helpful while doing the uClibc-ng porting.

Signed-off-by: Waldemar Brodkorb <wbx@uclibc-ng.org>

47 files changed, 3439 insertions, 0 deletions

diff --git a/libc/string/nds32/Makefile b/libc/string/nds32/Makefile
new file mode 100644
index 000000000..0a95346fd
--- /dev/null
+++ b/libc/string/nds32/Makefile
@@ -0,0 +1,13 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+top_srcdir:=../../../
+top_builddir:=../../../
+all: objs
+include $(top_builddir)Rules.mak
+include ../Makefile.in
+include $(top_srcdir)Makerules
diff --git a/libc/string/nds32/memcpy.S b/libc/string/nds32/memcpy.S
new file mode 100644
index 000000000..4f285b5ee
--- /dev/null
+++ b/libc/string/nds32/memcpy.S
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2016 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sysdep.h>
+!==========================================================
+!  void *memcpy(void *dst, const void *src, int n);
+!
+!        dst: $r0
+!        src: $r1
+!        n  : $r2
+!        ret: $r0 - pointer to the memory area dst.
+!==========================================================
+.weak memcpy
+ENTRY(memcpy)
+	move    $r5, $r0
+	beq     $r0, $r1, .Lquit_memcpy
+	beqz    $r2, .Lquit_memcpy
+	srli	$r3, $r2, #5			! check if len < cache-line size 32
+	beqz	$r3, .Lword_copy_entry
+	andi	$r4, $r0, #0x3			! check byte-align
+	beqz	$r4, .Lunalign_word_copy_entry
+
+	addi    $r4, $r4, #-4
+	abs		$r4, $r4				! check how many un-align byte to copy
+	sub		$r2, $r2, $r4			! update $R2
+
+.Lunalign_byte_copy:
+	lbi.bi	$r3, [$r1], #1
+	addi	$r4, $r4, #-1
+	sbi.bi	$r3, [$r0], #1
+	bnez	$r4, .Lunalign_byte_copy
+	beqz	$r2, .Lquit_memcpy
+
+.Lunalign_word_copy_entry:
+	andi	$r3, $r0, 0x1f			! check cache-line unaligncount
+	beqz	$r3, .Lcache_copy
+
+	addi	$r3, $r3, #-32
+	abs		$r3, $r3
+	sub		$r2, $r2, $r3			! update $R2
+
+.Lunalign_word_copy:
+	lmw.bim	$r4, [$r1], $r4
+	addi	$r3, $r3, #-4
+	smw.bim	$r4, [$r0], $r4
+	bnez	$r3, .Lunalign_word_copy
+	beqz	$r2, .Lquit_memcpy
+
+	addi	$r3, $r2, #-32			! to check $r2 < cache_line, than go to .Lword_copy
+	bltz	$r3, .Lword_copy_entry
+.Lcache_copy:
+	srli	$r3, $r2, #5
+	beqz	$r3, .Lword_copy_entry
+	pushm	$r6, $r13
+.L3:
+	lmw.bim	$r6, [$r1], $r13
+	addi	$r3, $r3, #-1
+	smw.bim	$r6, [$r0], $r13
+	bnez	$r3, .L3
+	popm	$r6, $r13
+
+.Lword_copy_entry:
+	andi	$r2, $r2, #31
+	beqz	$r2, .Lquit_memcpy
+	srli	$r3, $r2, #2
+	beqz	$r3, .Lbyte_copy
+.Lword_copy:
+	lmw.bim	$r4, [$r1], $r4
+	addi	$r3, $r3, #-1
+	smw.bim	$r4, [$r0], $r4
+	bnez	$r3, .Lword_copy
+	andi	$r2, $r2, #3
+	beqz	$r2, .Lquit_memcpy
+
+.Lbyte_copy:
+	lbi.bi	$r3, [$r1], #1
+	addi	$r2, $r2, #-1
+	sbi.bi	$r3, [$r0], #1
+	bnez	$r2, .Lbyte_copy
+
+.Lquit_memcpy:
+	move	$r0, $r5
+	ret
+
+END(memcpy)
+libc_hidden_def(memcpy)
diff --git a/libc/string/nds32/memset.S b/libc/string/nds32/memset.S
new file mode 100644
index 000000000..edd15a410
--- /dev/null
+++ b/libc/string/nds32/memset.S
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*  Copyright (C) 1998, 2003 Free Software Foundation, Inc.
+ *  Contributed by Philip Blundell <philb@gnu.org>
+ *
+ *  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.
+ */
+
+#include <features.h>
+#include <sysdep.h>
+!==========================================================
+!  void *memset(void *dst, int val, int len);
+!
+!        dst: $r0
+!        val: $r1
+!        len: $r2
+!        ret: $r0 - pointer to the memory area dst.
+!==========================================================
+.weak memset
+ENTRY(memset)
+	move	$r5, $r0	        ! Return value
+	beqz    $r2, .Lend_memset   ! Exit when len = 0
+	srli	$r3, $r2, 2	        ! r3 is how many words to copy
+	andi	$r2, $r2, 3	        ! How many bytes are less than a word
+	beqz	$r3, .Lbyte_set	    ! When n is less than a word
+
+    ! set r1 from to abababab
+	andi    $r1, $r1, 0x00ff        ! r1 = 000000ab
+	slli    $r4, $r1, 8             ! r4 = 0000ab00
+	or      $r1, $r1, $r4           ! r1 = 0000abab
+	slli    $r4, $r1, 16            ! r4 = abab0000
+	or      $r1, $r1, $r4           ! r1 = abababab
+
+.Lword_set:
+	addi	$r3, $r3, -1	        ! How many words left to copy
+	smw.bim $r1, [$r5], $r1	    	! Copy the word to det
+	bnez    $r3, .Lword_set			! Still words to set, continue looping
+	beqz	$r2, .Lend_memset		! No left byte to set
+
+.Lbyte_set:
+	! Less than 4 bytes left to set
+	addi	$r2, $r2, -1		! Decrease len by 1
+	sbi.p	$r1, [$r5], 1		! Set data of the next byte to r1
+	bnez	$r2, .Lbyte_set		! Still bytes left to set
+
+.Lend_memset:
+	ret
+
+END(memset)
+libc_hidden_def(memset)
diff --git a/libc/sysdeps/linux/nds32/Makefile b/libc/sysdeps/linux/nds32/Makefile
new file mode 100644
index 000000000..633c91f3e
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/Makefile
@@ -0,0 +1,13 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+top_srcdir=../../../../
+top_builddir=../../../../
+all: objs
+include $(top_builddir)Rules.mak
+include Makefile.arch
+include $(top_srcdir)Makerules
diff --git a/libc/sysdeps/linux/nds32/Makefile.arch b/libc/sysdeps/linux/nds32/Makefile.arch
new file mode 100644
index 000000000..8691875ee
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/Makefile.arch
@@ -0,0 +1,5 @@
+# Copyright (C) 2016 Andes Technology, Inc.
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+
+CSRC-y := brk.c sigaction.c
+SSRC-y := setjmp.S __longjmp.S bsd-setjmp.S bsd-_setjmp.S clone.S mmap.S sigrestorer.S vfork.S sysdep.S syscall.S
diff --git a/libc/sysdeps/linux/nds32/__longjmp.S b/libc/sysdeps/linux/nds32/__longjmp.S
new file mode 100644
index 000000000..fbea6f6f4
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/__longjmp.S
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2016 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+  setjmp/longjmp for nds32.
+  r0 - r5 are for paramter passing - no need to save
+  r6 - r14 are callee saved - needs to save
+  r15 is temp register for assembler - no need to save
+  r16 - r25 are caller saved - no need to save
+  r26 - r27 are temp registers for OS - no need to save
+  r28 is fp - need to save
+  r29 is gp - need to save
+  r30 is ra - need to save
+  r31 is sp - need to save
+  so we need to save r6 - r14 and r28 - r31
+  The jmpbuf looks like this:
+  r6
+  r7
+  r8
+  r9
+  r10
+  r11
+  r12
+  r13
+  r14
+  fp
+  gp
+  ra
+  sp
+#ifdef NDS32_ABI_2FP_PLUS
+  ($fpcfg.freg)
+  (callee-saved FPU regs)
+#endif
+  reserved(for 8-byte align if needed)
+*/
+
+#include <sysdep.h>
+#define _SETJMP_H
+#define _ASM
+#include <bits/setjmp.h>
+	.section .text
+
+/* __longjmp (env[0].__jmpbuf, val ?: 1);  */
+ENTRY(__longjmp)
+	! restore registers
+	lmw.bim  $r6, [$r0], $r14, #0xf
+
+#ifdef NDS32_ABI_2FP_PLUS
+	lwi.bi	$r20, [$r0], #4	/* Load $fpcfg.freg to $r20.  */
+
+	/* Case switch for $r20 as $fpcfg.freg.  */
+	beqz    $r20, .LCFG0         /* Branch if $fpcfg.freg = 0b00.  */
+	xori    $r15, $r20, #0b10
+	beqz    $r15, .LCFG2         /* Branch if $fpcfg.freg = 0b10.  */
+	srli    $r20, $r20, #0b01
+	beqz    $r20, .LCFG1         /* Branch if $fpcfg.freg = 0b01.  */
+	/* Fall-through if $fpcfg.freg = 0b11.  */
+.LCFG3:
+	fldi.bi	$fd31, [$r0], #8
+	fldi.bi	$fd30, [$r0], #8
+	fldi.bi	$fd29, [$r0], #8
+	fldi.bi	$fd28, [$r0], #8
+	fldi.bi	$fd27, [$r0], #8
+	fldi.bi	$fd26, [$r0], #8
+	fldi.bi	$fd25, [$r0], #8
+	fldi.bi	$fd24, [$r0], #8
+.LCFG2:
+	fldi.bi	$fd10, [$r0], #8
+	fldi.bi	$fd9, [$r0], #8
+	fldi.bi	$fd8, [$r0], #8
+.LCFG1:
+	fldi.bi	$fd7, [$r0], #8
+	fldi.bi	$fd6, [$r0], #8
+	fldi.bi	$fd5, [$r0], #8
+	fldi.bi	$fd4, [$r0], #8
+.LCFG0:
+	fldi.bi	$fd3, [$r0], #8
+#endif /* NDS32_ABI_2FP_PLUS */
+
+
+	! return error code; make sure error code is not 0
+	bnez  $r1, .Ldone
+	movi  $r1, #1
+.Ldone:
+	addi  $r0, $r1, #0
+	ret
+END(__longjmp)
+libc_hidden_def(__longjmp)
diff --git a/libc/sysdeps/linux/nds32/__syscall_error.c b/libc/sysdeps/linux/nds32/__syscall_error.c
new file mode 100644
index 000000000..2aa6903e2
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/__syscall_error.c
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2016 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <errno.h>
+#include <features.h>
+
+/* This routine is jumped to by all the syscall handlers, to stash
+ * an error number into errno.  */
+int __syscall_error(int err_no) attribute_hidden;
+int __syscall_error(int err_no)
+{
+	__set_errno(err_no);
+	return -1;
+}
diff --git a/libc/sysdeps/linux/nds32/bits/byteswap.h b/libc/sysdeps/linux/nds32/bits/byteswap.h
new file mode 100644
index 000000000..0f43cbb4e
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/bits/byteswap.h
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2016 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* Macros to swap the order of bytes in integer values.
+   Copyright (C) 1997, 1998, 2000, 2002, 2003, 2006, 2007
+   Free Software Foundation, Inc.
+
+   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.  */
+
+#if !defined _BYTESWAP_H && !defined _NETINET_IN_H
+# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
+#endif
+
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
+/* Swap bytes in 16 bit value.  */
+#define __bswap_constant_16(x) \
+     ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+
+#ifdef __GNUC__
+# if __GNUC__ >= 2
+#  define __bswap_16(x) \
+     (__extension__							      \
+      ({ register unsigned short int __v, __x = (x);			      \
+	 if (__builtin_constant_p (__x))				      \
+	   __v = __bswap_constant_16 (__x);				      \
+	 else								      \
+	   __asm__ ("wsbh	%0, %0\n\t"				  \
+		    : "=r" (__v)					      \
+ 		    : "0" (__x));						  \
+	 __v; }))
+# else
+/* This is better than nothing.  */
+#  define __bswap_16(x) \
+     (__extension__							      \
+      ({ register unsigned short int __x = (x); __bswap_constant_16 (__x); }))
+# endif
+#else
+static __inline unsigned short int
+__bswap_16 (unsigned short int __bsx)
+{
+  return __bswap_constant_16 (__bsx);
+}
+#endif
+
+/* Swap bytes in 32 bit value.  */
+#define __bswap_constant_32(x) \
+     ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >>  8) |		      \
+      (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24))
+
+#ifdef __GNUC__
+# if __GNUC__ >= 2
+#   define __bswap_32(x) \
+     (__extension__							      \
+      ({ register unsigned int __v, __x = (x);				      \
+	 if (__builtin_constant_p (__x))				      \
+	   __v = __bswap_constant_32 (__x);				      \
+	 else								      \
+	   __asm__ ("wsbh	%0, %0\n\t"		\
+			"rotri	%0, %0, #16\n\t"	\
+			: "=r" (__v)				\
+			: "0" (__x));				\
+	 __v; }))
+# else
+#  define __bswap_32(x) \
+     (__extension__							      \
+      ({ register unsigned int __x = (x); __bswap_constant_32 (__x); }))
+# endif
+#else
+static __inline unsigned int
+__bswap_32 (unsigned int __bsx)
+{
+  return __bswap_constant_32 (__bsx);
+}
+#endif
+
+
+#if defined __GNUC__ && __GNUC__ >= 2
+/* Swap bytes in 64 bit value.  */
+#define __bswap_constant_64(x) \
+     ((((x) & 0xff00000000000000ull) >> 56)				      \
+      | (((x) & 0x00ff000000000000ull) >> 40)				      \
+      | (((x) & 0x0000ff0000000000ull) >> 24)				      \
+      | (((x) & 0x000000ff00000000ull) >> 8)				      \
+      | (((x) & 0x00000000ff000000ull) << 8)				      \
+      | (((x) & 0x0000000000ff0000ull) << 24)				      \
+      | (((x) & 0x000000000000ff00ull) << 40)				      \
+      | (((x) & 0x00000000000000ffull) << 56))
+
+# define __bswap_64(x) \
+     (__extension__							      \
+      ({ union { __extension__ unsigned long long int __ll;		      \
+		 unsigned long int __l[2]; } __w, __r;			      \
+         if (__builtin_constant_p (x))					      \
+	   __r.__ll = __bswap_constant_64 (x);				      \
+	 else								      \
+	   {								      \
+	     __w.__ll = (x);						      \
+	     __r.__l[0] = __bswap_32 (__w.__l[1]);			      \
+	     __r.__l[1] = __bswap_32 (__w.__l[0]);			      \
+	   }								      \
+	 __r.__ll; }))
+#endif
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/libc/sysdeps/linux/nds32/bits/endian.h b/libc/sysdeps/linux/nds32/bits/endian.h
new file mode 100644
index 000000000..989d752d4
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/bits/endian.h
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2016 Andes Technology, Inc.
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif /* _ENDIAN_H  */
+
+#ifdef __NDS32_EB__
+#define __BYTE_ORDER __BIG_ENDIAN
+#else /* ! __NDS32_EB__  */
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif /* ! __NDS32_EB__  */
+
+#define __FLOAT_WORD_ORDER __BYTE_ORDER
diff --git a/libc/sysdeps/linux/nds32/bits/fcntl.h b/libc/sysdeps/linux/nds32/bits/fcntl.h
new file mode 100644
index 000000000..d21c4e03c
--- /dev/null
+++ b/libc/sysdeps/linux/nds32/bits/fcntl.h
@@ -0,0 +1,241 @@
+/* O_*, F_*, FD_* bit values for Linux.
+   Copyright (C) 1995, 1996, 1997, 1998, 2000, 2004, 2007
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef	_FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+#include <sys/types.h>
+#ifdef __USE_GNU
+# include <bits/uio.h>
+#endif
+
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+   located on an ext2 file system */
+#define O_ACCMODE	   0003
+#define O_RDONLY	     00
+#define O_WRONLY	     01
+#define O_RDWR		     02
+#define O_CREAT		   0100	/* not fcntl */
+#define O_EXCL		   0200	/* not fcntl */
+#define O_NOCTTY	   0400	/* not fcntl */
+#define O_TRUNC		  01000	/* not fcntl */
+#define O_APPEND	  02000
+#define O_NONBLOCK	  04000
+#define O_NDELAY	O_NONBLOCK
+#define O_SYNC		 010000
+#define O_FSYNC		 O_SYNC
+#define O_ASYNC		 020000
+
+#ifdef __USE_GNU
+# define O_DIRECT	 040000	/* Direct disk access.	*/
+# define O_DIRECTORY	0200000	/* Must be a directory.	 */
+# define O_NOFOLLOW	0400000	/* Do not follow links.	 */
+# define O_NOATIME     01000000 /* Do not set atime.  */
+# define O_CLOEXEC     02000000 /* set close_on_exec */
+# define O_PATH       010000000 /* Resolve pathname but do not open file.  */
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+   We define the symbols here but let them do the same as O_SYNC since
+   this is a superset.	*/
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC	O_SYNC	/* Synchronize data.  */
+# define O_RSYNC	O_SYNC	/* Synchronize read operations.	 */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# define O_LARGEFILE	0100000
+#endif
+
+/* Values for the second argument to `fcntl'.  */
+#define F_DUPFD		0	/* Duplicate file descriptor.  */
+#define F_GETFD		1	/* Get file descriptor flags.  */
+#define F_SETFD		2	/* Set file descriptor flags.  */
+#define F_GETFL		3	/* Get file status flags.  */
+#define F_SETFL		4	/* Set file status flags.  */
+#ifndef __USE_FILE_OFFSET64
+# define F_GETLK	5	/* Get record locking info.  */
+# define F_SETLK	6	/* Set record locking info (non-blocking).  */
+# define F_SETLKW	7	/* Set record locking info (blocking).	*/
+#else
+# define F_GETLK	F_GETLK64  /* Get record locking info.	*/
+# define F_SETLK	F_SETLK64  /* Set record locking info (non-blocking).*/
+# define F_SETLKW	F_SETLKW64 /* Set record locking info (blocking).  */
+#endif
+#define F_GETLK64	12	/* Get record locking info.  */
+#define F_SETLK64	13	/* Set record locking info (non-blocking).  */
+#define F_SETLKW64	14	/* Set record locking info (blocking).	*/
+
+#if defined __USE_BSD || defined __USE_UNIX98
+# define F_SETOWN	8	/* Get owner of socket (receiver of SIGIO).  */
+# define F_GETOWN	9	/* Set owner of socket (receiver of SIGIO).  */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG	10	/* Set number of signal to be sent.  */
+# define F_GETSIG	11	/* Get number of signal to be sent.  */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETLEASE	1024	/* Set a lease.	 */
+# define F_GETLEASE	1025	/* Enquire what lease is active.  */
+# define F_NOTIFY	1026	/* Request notfications on a directory.	 */
+# define F_DUPFD_CLOEXEC 1030	/* Duplicate file descriptor with
+				   close-on-exit set on new fd.  */
+# define F_SETPIPE_SZ	1031    /* Set pipe page size array.  */
+# define F_GETPIPE_SZ	1032    /* Get pipe page size array.  */
+#endif
+
+/* For F_[GET|SET]FD.  */
+#define FD_CLOEXEC	1	/* actually anything with low bit set goes */
+
+/* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
+#define F_RDLCK		0	/* Read lock.  */
+#define F_WRLCK		1	/* Write lock.	*/
+#define F_UNLCK		2	/* Remove lock.	 */
+
+/* For old implementation of bsd flock().  */
+#define F_EXLCK		4	/* or 3 */
+#define F_SHLCK		8	/* or 4 */
+
+#ifdef __USE_BSD
+/* Operations for bsd flock(), also used by the kernel implementation.	*/
+# define LOCK_SH	1	/* shared lock */
+# define LOCK_EX	2	/* exclusive lock */
+# define LOCK_NB	4	/* or'd with one of the above to prevent
+				   blocking */
+# define LOCK_UN	8	/* remove lock */
+#endif
+
+#ifdef __USE_GNU
+# define LOCK_MAND	32	/* This is a mandatory flock:	*/
+# define LOCK_READ	64	/* ... which allows concurrent read operations.	 */
+# define LOCK_WRITE	128	/* ... which allows concurrent write operations.  */
+# define LOCK_RW	192	/* ... Which allows concurrent read & write operations.	 */
+#endif
+
+#ifdef __USE_GNU
+/* Types of directory notifications that may be requested with F_NOTIFY.  */
+# define DN_ACCESS	0x00000001	/* File accessed.  */
+# define DN_MODIFY	0x00000002	/* File modified.  */
+# define DN_CREATE	0x00000004	/* File created.  */
+# define DN_DELETE	0x00000008	/* File removed.  */
+# define DN_RENAME	0x00000010	/* File renamed.  */
+# define DN_ATTRIB	0x00000020	/* File changed attibutes.  */
+# define DN_MULTISHOT	0x80000000	/* Don't remove notifier.  */
+#endif
+
+struct flock
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+#ifndef __USE_FILE_OFFSET64
+    __off_t l_start;	/* Offset where the lock begins.  */
+    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
+#else
+    __off64_t l_start;	/* Offset where the lock begins.  */
+    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
+#endif
+    __pid_t l_pid;	/* Process holding the lock.  */
+  };
+
+#ifdef __USE_LARGEFILE64
+struct flock64
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+    __off64_t l_start;	/* Offset where the lock begins.  */
+    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
+    __pid_t l_pid;	/* Process holding the lock.  */
+  };
+#endif
+
+/* Define some more compatibility macros to be backward compatible with
+   BSD systems which did not managed to hide these kernel macros.  */
+#ifdef	__USE_BSD
+# define FAPPEND	O_APPEND
+# define FFSYNC		O_FSYNC
+# define FASYNC		O_ASYNC
+# define FNONBLOCK	O_NONBLOCK
+# define FNDELAY	O_NDELAY
+#endif /* Use BSD.  */
+
+/* Advise to `posix_fadvise'.  */
+#ifdef __USE_XOPEN2K