* libc/sys/linux/sys/cdefs.h: Add __weak_reference macros.

	* libc/sys/linux/sys/time.h: Add conversion macros.
	* libc/sys/linux/sys/types.h: Add FD_ macros.  Include <bits/types.h>.
	* libc/sys/linux/ids.c: Add setresuid and syslog syscalls.
	* libc/sys/linux/gethostname.c: New file.
	* libc/sys/linux/seteuid.c: New file.
	* libc/sys/linux/sysctl.c: New file.

11 files changed, 341 insertions, 23 deletions

diff --git a/newlib/libc/sys/linux/Makefile.am b/newlib/libc/sys/linux/Makefile.am
index 592485635..be4093805 100644
--- a/newlib/libc/sys/linux/Makefile.am
+++ b/newlib/libc/sys/linux/Makefile.am
@@ -6,15 +6,16 @@ INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
 
 SUBDIRS = machine \
 	.
-SUBLIBS = $(LINUX_MACH_LIB)
+SUBLIBS = \
+	$(LINUX_MACH_LIB)
 
 LIB_SOURCES = \
-	brk.c flockfile.c funlockfile.c getoptlong.c getreent.c ids.c \
+	brk.c flockfile.c funlockfile.c gethostname.c getoptlong.c getreent.c ids.c \
 	inode.c io.c io64.c linux.c mmap.c \
 	pread.c pread64.c process.c pwrite.c pwrite64.c raise.c realpath.c \
-	resource.c sched.c select.c shm_open.c shm_unlink.c signal.c \
+	resource.c sched.c select.c shm_open.c shm_unlink.c seteuid.c signal.c \
 	siglongjmp.c socket.c sleep.c stack.c \
-	sysconf.c systat.c system.c tcdrain.c termios.c time.c \
+	sysconf.c sysctl.c systat.c system.c tcdrain.c termios.c time.c \
 	usleep.c wait.c
 
 # This will handle both /usr/src/linux-2.4/include/asm/signal.h (in Red Hat Linux 7.1)
diff --git a/newlib/libc/sys/linux/Makefile.in b/newlib/libc/sys/linux/Makefile.in
index 66b1587b5..a3c71c8b2 100644
--- a/newlib/libc/sys/linux/Makefile.in
+++ b/newlib/libc/sys/linux/Makefile.in
@@ -96,15 +96,17 @@ INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
 SUBDIRS = machine \
 	.
 
-SUBLIBS = $(LINUX_MACH_LIB)
+SUBLIBS = \
+	$(LINUX_MACH_LIB)
+
 
 LIB_SOURCES = \
-	brk.c flockfile.c funlockfile.c getoptlong.c getreent.c ids.c \
+	brk.c flockfile.c funlockfile.c gethostname.c getoptlong.c getreent.c ids.c \
 	inode.c io.c io64.c linux.c mmap.c \
 	pread.c pread64.c process.c pwrite.c pwrite64.c raise.c realpath.c \
-	resource.c sched.c select.c shm_open.c shm_unlink.c signal.c \
+	resource.c sched.c select.c shm_open.c shm_unlink.c seteuid.c signal.c \
 	siglongjmp.c socket.c sleep.c stack.c \
-	sysconf.c systat.c system.c tcdrain.c termios.c time.c \
+	sysconf.c sysctl.c systat.c system.c tcdrain.c termios.c time.c \
 	usleep.c wait.c
 
 
@@ -136,25 +138,25 @@ DEFS = @DEFS@ -I. -I$(srcdir)
 CPPFLAGS = @CPPFLAGS@
 LIBS = @LIBS@
 @USE_LIBTOOL_FALSE@lib_a_OBJECTS =  brk.o flockfile.o funlockfile.o \
-@USE_LIBTOOL_FALSE@getoptlong.o getreent.o ids.o inode.o io.o io64.o \
-@USE_LIBTOOL_FALSE@linux.o mmap.o pread.o pread64.o process.o pwrite.o \
-@USE_LIBTOOL_FALSE@pwrite64.o raise.o realpath.o resource.o sched.o \
-@USE_LIBTOOL_FALSE@select.o shm_open.o shm_unlink.o signal.o \
-@USE_LIBTOOL_FALSE@siglongjmp.o socket.o sleep.o stack.o sysconf.o \
-@USE_LIBTOOL_FALSE@systat.o system.o tcdrain.o termios.o time.o \
-@USE_LIBTOOL_FALSE@usleep.o wait.o
+@USE_LIBTOOL_FALSE@gethostname.o getoptlong.o getreent.o ids.o inode.o \
+@USE_LIBTOOL_FALSE@io.o io64.o linux.o mmap.o pread.o pread64.o \
+@USE_LIBTOOL_FALSE@process.o pwrite.o pwrite64.o raise.o realpath.o \
+@USE_LIBTOOL_FALSE@resource.o sched.o select.o shm_open.o shm_unlink.o \
+@USE_LIBTOOL_FALSE@seteuid.o signal.o siglongjmp.o socket.o sleep.o \
+@USE_LIBTOOL_FALSE@stack.o sysconf.o sysctl.o systat.o system.o \
+@USE_LIBTOOL_FALSE@tcdrain.o termios.o time.o usleep.o wait.o
 LTLIBRARIES =  $(noinst_LTLIBRARIES)
 
 @USE_LIBTOOL_TRUE@liblinux_la_DEPENDENCIES = 
 @USE_LIBTOOL_TRUE@liblinux_la_OBJECTS =  brk.lo flockfile.lo \
-@USE_LIBTOOL_TRUE@funlockfile.lo getoptlong.lo getreent.lo ids.lo \
-@USE_LIBTOOL_TRUE@inode.lo io.lo io64.lo linux.lo mmap.lo pread.lo \
-@USE_LIBTOOL_TRUE@pread64.lo process.lo pwrite.lo pwrite64.lo raise.lo \
-@USE_LIBTOOL_TRUE@realpath.lo resource.lo sched.lo select.lo \
-@USE_LIBTOOL_TRUE@shm_open.lo shm_unlink.lo signal.lo siglongjmp.lo \
-@USE_LIBTOOL_TRUE@socket.lo sleep.lo stack.lo sysconf.lo systat.lo \
-@USE_LIBTOOL_TRUE@system.lo tcdrain.lo termios.lo time.lo usleep.lo \
-@USE_LIBTOOL_TRUE@wait.lo
+@USE_LIBTOOL_TRUE@funlockfile.lo gethostname.lo getoptlong.lo \
+@USE_LIBTOOL_TRUE@getreent.lo ids.lo inode.lo io.lo io64.lo linux.lo \
+@USE_LIBTOOL_TRUE@mmap.lo pread.lo pread64.lo process.lo pwrite.lo \
+@USE_LIBTOOL_TRUE@pwrite64.lo raise.lo realpath.lo resource.lo sched.lo \
+@USE_LIBTOOL_TRUE@select.lo shm_open.lo shm_unlink.lo seteuid.lo \
+@USE_LIBTOOL_TRUE@signal.lo siglongjmp.lo socket.lo sleep.lo stack.lo \
+@USE_LIBTOOL_TRUE@sysconf.lo sysctl.lo systat.lo system.lo tcdrain.lo \
+@USE_LIBTOOL_TRUE@termios.lo time.lo usleep.lo wait.lo
 CFLAGS = @CFLAGS@
 COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 LTCOMPILE = $(LIBTOOL) --mode=compile $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
diff --git a/newlib/libc/sys/linux/configure b/newlib/libc/sys/linux/configure
index 977c145a8..2c4f60572 100755
--- a/newlib/libc/sys/linux/configure
+++ b/newlib/libc/sys/linux/configure
@@ -2369,6 +2369,7 @@ if test -n "${machine_dir}"; then
 fi
 
 
+
 subdirs="machine $EXTRA_DIRS"
 
 
diff --git a/newlib/libc/sys/linux/configure.in b/newlib/libc/sys/linux/configure.in
index 4b9c305bb..75143b00b 100644
--- a/newlib/libc/sys/linux/configure.in
+++ b/newlib/libc/sys/linux/configure.in
@@ -29,6 +29,7 @@ if test -n "${machine_dir}"; then
 fi
 AC_SUBST(LINUX_MACH_LIB)
 
+
 AC_CONFIG_SUBDIRS(machine $EXTRA_DIRS)
 
 AC_OUTPUT(Makefile)
diff --git a/newlib/libc/sys/linux/gethostname.c b/newlib/libc/sys/linux/gethostname.c
new file mode 100644
index 000000000..d5ebe58a2
--- /dev/null
+++ b/newlib/libc/sys/linux/gethostname.c
@@ -0,0 +1,30 @@
+/* Copyright 2002, Red Hat Inc. */
+
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/utsname.h>
+
+int
+gethostname (char *name, size_t len)
+{
+	struct utsname nodebuf;
+	size_t nodelen;
+
+	if (uname (&nodebuf))
+		return -1;
+
+	nodelen = strlen (nodebuf.nodename) + 1;
+	if (len < nodelen)
+		memcpy (name, nodebuf.nodename, len);
+	else
+		memcpy (name, nodebuf.nodename, nodelen);
+
+	if (nodelen > len)
+	{
+		errno = ENAMETOOLONG;
+		return -1;
+	}
+	return 0;
+}
+
diff --git a/newlib/libc/sys/linux/ids.c b/newlib/libc/sys/linux/ids.c
index 67313b8a9..592d97de2 100644
--- a/newlib/libc/sys/linux/ids.c
+++ b/newlib/libc/sys/linux/ids.c
@@ -16,4 +16,6 @@ _syscall1(int,setfsgid,gid_t,gid)
 _syscall0(gid_t,getgid)
 _syscall0(uid_t,geteuid)
 _syscall0(gid_t,getegid)
+_syscall3(int,setresuid,uid_t,ruid,uid_t,euid,uid_t,suid)
 _syscall2(int,getgroups,int,size,gid_t *,list)
+_syscall3(int,syslog,int,type,char *,bufp,int,len)
diff --git a/newlib/libc/sys/linux/seteuid.c b/newlib/libc/sys/linux/seteuid.c
new file mode 100644
index 000000000..c3fa384fd
--- /dev/null
+++ b/newlib/libc/sys/linux/seteuid.c
@@ -0,0 +1,18 @@
+/* Copyright 2002, Red Hat Inc. */
+
+#include <errno.h>
+#include <unistd.h>
+
+int
+seteuid (uid_t uid)
+{
+	int result;
+
+	if (uid == (uid_t) ~0)
+	{
+		errno = (EINVAL);
+		return -1;
+	}
+
+	return setresuid (-1, uid, -1);
+}
diff --git a/newlib/libc/sys/linux/sys/cdefs.h b/newlib/libc/sys/linux/sys/cdefs.h
index c22a900b0..a9759a7fa 100644
--- a/newlib/libc/sys/linux/sys/cdefs.h
+++ b/newlib/libc/sys/linux/sys/cdefs.h
@@ -2,6 +2,44 @@
 
 /* Written 2000 by Werner Almesberger */
 
+/*
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Berkeley Software Design, Inc.
+ *
+ * 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.
+ *
+ *	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
+ * $FreeBSD: src/sys/sys/cdefs.h,v 1.54 2002/05/11 03:58:24 alfred Exp $
+ */
 
 #ifndef _SYS_CDEFS_H
 #define _SYS_CDEFS_H
@@ -41,4 +79,44 @@
 # define __ptrvalue     /* nothing */
 #endif
 
+#ifdef __GNUC__
+#define	__strong_reference(sym,aliassym)	\
+	extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)));
+#ifdef __ELF__
+#ifdef __STDC__
+#define	__weak_reference(sym,alias)	\
+	__asm__(".weak " #alias);	\
+	__asm__(".equ "  #alias ", " #sym)
+#define	__warn_references(sym,msg)	\
+	__asm__(".section .gnu.warning." #sym);	\
+	__asm__(".asciz \"" msg "\"");	\
+	__asm__(".previous")
+#else
+#define	__weak_reference(sym,alias)	\
+	__asm__(".weak alias");		\
+	__asm__(".equ alias, sym")
+#define	__warn_references(sym,msg)	\
+	__asm__(".section .gnu.warning.sym"); \
+	__asm__(".asciz \"msg\"");	\
+	__asm__(".previous")
+#endif	/* __STDC__ */
+#else	/* !__ELF__ */
+#ifdef __STDC__
+#define	__weak_reference(sym,alias)	\
+	__asm__(".stabs \"_" #alias "\",11,0,0,0");	\
+	__asm__(".stabs \"_" #sym "\",1,0,0,0")
+#define	__warn_references(sym,msg)	\
+	__asm__(".stabs \"" msg "\",30,0,0,0");		\
+	__asm__(".stabs \"_" #sym "\",1,0,0,0")
+#else
+#define	__weak_reference(sym,alias)	\
+	__asm__(".stabs \"_/**/alias\",11,0,0,0");	\
+	__asm__(".stabs \"_/**/sym\",1,0,0,0")
+#define	__warn_references(sym,msg)	\
+	__asm__(".stabs msg,30,0,0,0");			\
+	__asm__(".stabs \"_/**/sym\",1,0,0,0")
+#endif	/* __STDC__ */
+#endif	/* __ELF__ */
+#endif	/* __GNUC__ */
+
 #endif /* _SYS_CDEFS_H */
diff --git a/newlib/libc/sys/linux/sys/time.h b/newlib/libc/sys/linux/sys/time.h
index a9618d7cb..42487d62e 100644
--- a/newlib/libc/sys/linux/sys/time.h
+++ b/newlib/libc/sys/linux/sys/time.h
@@ -2,6 +2,41 @@
 
 /* Written 2000 by Werner Almesberger */
 
+/*
+ * Copyright (c) 1982, 1986, 1993
+ *	The 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.
+ *
+ *	@(#)time.h	8.5 (Berkeley) 5/4/95
+ * $FreeBSD: src/sys/sys/time.h,v 1.56 2002/05/05 04:33:09 bde Exp $
+ */
 
 #ifndef _SYS_TIME_H
 #define _SYS_TIME_H
@@ -9,6 +44,43 @@
 #include <sys/types.h>
 #include <linux/time.h>
 
+/* Macros for converting between `struct timeval' and `struct timespec'.  */
+# define TIMEVAL_TO_TIMESPEC(tv, ts) {                                   \
+        (ts)->tv_sec = (tv)->tv_sec;                                    \
+        (ts)->tv_nsec = (tv)->tv_usec * 1000;                           \
+}
+# define TIMESPEC_TO_TIMEVAL(tv, ts) {                                   \
+        (tv)->tv_sec = (ts)->tv_sec;                                    \
+        (tv)->tv_usec = (ts)->tv_nsec / 1000;                           \
+}
+
+/* Convenience macros for operations on timevals.
+   NOTE: `timercmp' does not work for >= or <=.  */
+# define timerisset(tvp)	((tvp)->tv_sec || (tvp)->tv_usec)
+# define timerclear(tvp)	((tvp)->tv_sec = (tvp)->tv_usec = 0)
+# define timercmp(a, b, CMP) 						      \
+  (((a)->tv_sec == (b)->tv_sec) ? 					      \
+   ((a)->tv_usec CMP (b)->tv_usec) : 					      \
+   ((a)->tv_sec CMP (b)->tv_sec))
+# define timeradd(a, b, result)						      \
+  do {									      \
+    (result)->tv_sec = (a)->tv_sec + (b)->tv_sec;			      \
+    (result)->tv_usec = (a)->tv_usec + (b)->tv_usec;			      \
+    if ((result)->tv_usec >= 1000000)					      \
+      {									      \
+	++(result)->tv_sec;						      \
+	(result)->tv_usec -= 1000000;					      \
+      }									      \
+  } while (0)
+# define timersub(a, b, result)						      \
+  do {									      \
+    (result)->tv_sec = (a)->tv_sec - (b)->tv_sec;			      \
+    (result)->tv_usec = (a)->tv_usec - (b)->tv_usec;			      \
+    if ((result)->tv_usec < 0) {					      \
+      --(result)->tv_sec;						      \
+      (result)->tv_usec += 1000000;					      \
+    }									      \
+  } while (0)
 /* --- redundant stuff below --- */
 
 #include <_ansi.h>
diff --git a/newlib/libc/sys/linux/sys/types.h b/newlib/libc/sys/linux/sys/types.h
index 146b8b834..05e313d10 100644
--- a/newlib/libc/sys/linux/sys/types.h
+++ b/newlib/libc/sys/linux/sys/types.h
@@ -2,6 +2,46 @@
 
 /* Written 2000 by Werner Almesberger */
 
+/*-
+ * Copyright (c) 1982, 1986, 1991, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * 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.
+ *
+ *	@(#)types.h	8.6 (Berkeley) 2/19/95
+ * $FreeBSD: src/sys/sys/types.h,v 1.60 2002/04/10 15:58:13 mike Exp $
+ */
 
 #ifndef _SYS_TYPES_H
 #define _SYS_TYPES_H
@@ -77,7 +117,38 @@ struct timespec {
 };
 #endif /* !_STRUCT_TIMESPEC */
 
+#  define _SYS_TYPES_FD_SET
+#  define	NBBY	8		/* number of bits in a byte */
+/*
+ * Select uses bit masks of file descriptors in longs.
+ * These macros manipulate such bit fields (the filesystem macros use chars).
+ * FD_SETSIZE may be defined by the user, but the default here
+ * should be >= NOFILE (param.h).
+ */
+#  ifndef	FD_SETSIZE
+#	define	FD_SETSIZE	64
+#  endif
+
+typedef	long	fd_mask;
+#  define	NFDBITS	(sizeof (fd_mask) * NBBY)	/* bits per mask */
+#  ifndef	howmany
+#	define	howmany(x,y)	(((x)+((y)-1))/(y))
+#  endif
+
+#define fd_set _types_fd_set
+
+#  define	FD_SET(n, p)	((p)->fds_bits[(n)/NFDBITS] |= (1L << ((n) % NFDBITS)))
+#  define	FD_CLR(n, p)	((p)->fds_bits[(n)/NFDBITS] &= ~(1L << ((n) % NFDBITS)))
+#  define	FD_ISSET(n, p)	((p)->fds_bits[(n)/NFDBITS] & (1L << ((n) % NFDBITS)))
+#  define	FD_ZERO(p)	(__extension__ (void)({ \
+     size_t __i; \
+     char *__tmp = (char *)p; \
+     for (__i = 0; __i < sizeof (*(p)); ++__i) \
+       *__tmp++ = 0; \
+}))
+
 #include <linux/types.h>
+#include <bits/types.h>
 #define __mode_t_defined
 
 #endif
diff --git a/newlib/libc/sys/linux/sysctl.c b/newlib/libc/sys/linux/sysctl.c
new file mode 100644
index 000000000..020d431be
--- /dev/null
+++ b/newlib/libc/sys/linux/sysctl.c
@@ -0,0 +1,42 @@
+/* Read or write system information.  Linux version.
+   Copyright (C) 1996, 1997, 1998, 1999, 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.  */
+
+#include <errno.h>
+#include <sys/sysctl.h>
+
+#include <machine/syscall.h>
+
+static _syscall1(int,_sysctl,struct __sysctl_args *,args)
+
+int
+__sysctl (int *name, int nlen, void *oldval, size_t *oldlenp,
+	  void *newval, size_t newlen)
+{
+  struct __sysctl_args args =
+  {
+    name: name,
+    nlen: nlen,
+    oldval: oldval,
+    oldlenp: oldlenp,
+    newval: newval,
+    newlen: newlen
+  };
+
+  return _sysctl(&args);
+}