2007-07-06 Jeff Johnston <jjohnstn@redhat.com>

       * libc/include/sys/time.h (gettimeofday): Change to proper
       prototype where second parameter is void *.
       * libc/include/reent.h: Fix prototype for _gettimeofday_r.
       * libc/time/timer.c (_gettimeofday_r): Change prototype accordingly.

2007-06-13  Patrick Mansfield  <patmans@us.ibm.com>

       * libc/include/sys/unistd.h: Change usleep prototype to Posix.

2007-01-05  Brian Ford  <Brian.Ford@FlightSafety.com>

       * configure.host (*-*-cygwin*): Define HAVE_BLKSIZE.

4 files changed, 637 insertions, 0 deletions

diff --git a/newlib/libc/include/reent.h b/newlib/libc/include/reent.h
new file mode 100644
index 00000000000..639789e7105
--- /dev/null
+++ b/newlib/libc/include/reent.h
@@ -0,0 +1,101 @@
+/* This header file provides the reentrancy.  */
+
+/* The reentrant system calls here serve two purposes:
+
+   1) Provide reentrant versions of the system calls the ANSI C library
+      requires.
+   2) Provide these system calls in a namespace clean way.
+
+   It is intended that *all* system calls that the ANSI C library needs
+   be declared here.  It documents them all in one place.  All library access
+   to the system is via some form of these functions.
+
+   There are three ways a target may provide the needed syscalls.
+
+   1) Define the reentrant versions of the syscalls directly.
+      (eg: _open_r, _close_r, etc.).  Please keep the namespace clean.
+      When you do this, set "syscall_dir" to "syscalls" and add
+      -DREENTRANT_SYSCALLS_PROVIDED to newlib_cflags in configure.host.
+
+   2) Define namespace clean versions of the system calls by prefixing
+      them with '_' (eg: _open, _close, etc.).  Technically, there won't be
+      true reentrancy at the syscall level, but the library will be namespace
+      clean.
+      When you do this, set "syscall_dir" to "syscalls" in configure.host.
+
+   3) Define or otherwise provide the regular versions of the syscalls
+      (eg: open, close, etc.).  The library won't be reentrant nor namespace
+      clean, but at least it will work.
+      When you do this, add -DMISSING_SYSCALL_NAMES to newlib_cflags in
+      configure.host.
+
+   Stubs of the reentrant versions of the syscalls exist in the libc/reent
+   source directory and are used if REENTRANT_SYSCALLS_PROVIDED isn't defined.
+   They use the native system calls: _open, _close, etc. if they're available
+   (MISSING_SYSCALL_NAMES is *not* defined), otherwise open, close, etc.
+   (MISSING_SYSCALL_NAMES *is* defined).  */
+
+/* WARNING: All identifiers here must begin with an underscore.  This file is
+   included by stdio.h and others and we therefore must only use identifiers
+   in the namespace allotted to us.  */
+
+#ifndef _REENT_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define _REENT_H_
+
+#include <sys/reent.h>
+#include <sys/_types.h>
+#include <machine/types.h>
+
+#define __need_size_t
+#define __need_ptrdiff_t
+#include <stddef.h>
+
+/* FIXME: not namespace clean */
+struct stat;
+struct tms;
+struct timeval;
+struct timezone;
+
+/* Reentrant versions of system calls.  */
+
+extern int _close_r _PARAMS ((struct _reent *, int));
+extern int _execve_r _PARAMS ((struct _reent *, char *, char **, char **));
+extern int _fcntl_r _PARAMS ((struct _reent *, int, int, int));
+extern int _fork_r _PARAMS ((struct _reent *));
+extern int _fstat_r _PARAMS ((struct _reent *, int, struct stat *));
+extern int _getpid_r _PARAMS ((struct _reent *));
+extern int _kill_r _PARAMS ((struct _reent *, int, int));
+extern int _link_r _PARAMS ((struct _reent *, const char *, const char *));
+extern _off_t _lseek_r _PARAMS ((struct _reent *, int, _off_t, int));
+extern int _open_r _PARAMS ((struct _reent *, const char *, int, int));
+extern _ssize_t _read_r _PARAMS ((struct _reent *, int, void *, size_t));
+extern void *_sbrk_r _PARAMS ((struct _reent *, ptrdiff_t));
+extern int _stat_r _PARAMS ((struct _reent *, const char *, struct stat *));
+extern _CLOCK_T_ _times_r _PARAMS ((struct _reent *, struct tms *));
+extern int _unlink_r _PARAMS ((struct _reent *, const char *));
+extern int _wait_r _PARAMS ((struct _reent *, int *));
+extern _ssize_t _write_r _PARAMS ((struct _reent *, int, const void *, size_t));
+
+/* This one is not guaranteed to be available on all targets.  */
+extern int _gettimeofday_r _PARAMS ((struct _reent *, struct timeval *__tp, void *__tzp));
+
+#ifdef __LARGE64_FILES
+
+#if defined(__CYGWIN__) && defined(_COMPILING_NEWLIB)
+#define stat64 __stat64
+#endif
+
+struct stat64;
+
+extern _off64_t _lseek64_r _PARAMS ((struct _reent *, int, _off64_t, int));
+extern int _fstat64_r _PARAMS ((struct _reent *, int, struct stat64 *));
+extern int _open64_r _PARAMS ((struct _reent *, const char *, int, int));
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _REENT_H_ */
diff --git a/newlib/libc/include/sys/time.h b/newlib/libc/include/sys/time.h
new file mode 100644
index 00000000000..9881d33cfe1
--- /dev/null
+++ b/newlib/libc/include/sys/time.h
@@ -0,0 +1,83 @@
+/* time.h -- An implementation of the standard Unix <sys/time.h> file.
+   Written by Geoffrey Noer <noer@cygnus.com>
+   Public domain; no rights reserved. */
+
+#ifndef _SYS_TIME_H_
+#define _SYS_TIME_H_
+
+#include <_ansi.h>
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _WINSOCK_H
+struct timeval {
+  time_t      tv_sec;
+  suseconds_t tv_usec;
+};
+
+struct timezone {
+  int tz_minuteswest;
+  int tz_dsttime;
+};
+
+#ifdef __CYGWIN__
+#include <cygwin/sys_time.h>
+#endif /* __CYGWIN__ */
+
+#endif /* _WINSOCK_H */
+
+#define ITIMER_REAL     0
+#define ITIMER_VIRTUAL  1
+#define ITIMER_PROF     2
+
+struct  itimerval {
+  struct  timeval it_interval;
+  struct  timeval it_value;
+};
+
+/* BSD time macros used by RTEMS code */
+#if defined (__rtems__) || defined (__CYGWIN__)
+
+/* 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)
+#endif /* defined (__rtems__) || defined (__CYGWIN__) */
+
+int _EXFUN(gettimeofday, (struct timeval *__p, void *__z));
+int _EXFUN(settimeofday, (const struct timeval *, const struct timezone *));
+int _EXFUN(utimes, (const char *__path, const struct timeval *__tvp));
+int _EXFUN(getitimer, (int __which, struct itimerval *__value));
+int _EXFUN(setitimer, (int __which, const struct itimerval *__value,
+					struct itimerval *__ovalue));
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _SYS_TIME_H_ */
diff --git a/newlib/libc/include/sys/unistd.h b/newlib/libc/include/sys/unistd.h
new file mode 100644
index 00000000000..dd309998a2a
--- /dev/null
+++ b/newlib/libc/include/sys/unistd.h
@@ -0,0 +1,340 @@
+#ifndef _SYS_UNISTD_H
+#define _SYS_UNISTD_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <_ansi.h>
+#include <sys/types.h>
+#include <sys/_types.h>
+#define __need_size_t
+#define __need_ptrdiff_t
+#include <stddef.h>
+
+extern char **environ;
+
+void	_EXFUN(_exit, (int __status ) _ATTRIBUTE ((noreturn)));
+
+int	_EXFUN(access,(const char *__path, int __amode ));
+unsigned  _EXFUN(alarm, (unsigned __secs ));
+int     _EXFUN(chdir, (const char *__path ));
+int     _EXFUN(chmod, (const char *__path, mode_t __mode ));
+#if !defined(__INSIDE_CYGWIN__)
+int     _EXFUN(chown, (const char *__path, uid_t __owner, gid_t __group ));
+#endif
+#if defined(__CYGWIN__) || defined(__rtems__)
+int     _EXFUN(chroot, (const char *__path ));
+#endif
+int     _EXFUN(close, (int __fildes ));
+char    _EXFUN(*ctermid, (char *__s ));
+char    _EXFUN(*cuserid, (char *__s ));
+#if defined(__CYGWIN__)
+int	_EXFUN(daemon, (int nochdir, int noclose));
+#endif
+int     _EXFUN(dup, (int __fildes ));
+int     _EXFUN(dup2, (int __fildes, int __fildes2 ));
+#if defined(__CYGWIN__)
+void	_EXFUN(endusershell, (void));
+#endif
+int     _EXFUN(execl, (const char *__path, const char *, ... ));
+int     _EXFUN(execle, (const char *__path, const char *, ... ));
+int     _EXFUN(execlp, (const char *__file, const char *, ... ));
+int     _EXFUN(execv, (const char *__path, char * const __argv[] ));
+int     _EXFUN(execve, (const char *__path, char * const __argv[], char * const __envp[] ));
+int     _EXFUN(execvp, (const char *__file, char * const __argv[] ));
+#if defined(__CYGWIN__) || defined(__rtems__)
+int     _EXFUN(fchdir, (int __fildes));
+#endif
+int     _EXFUN(fchmod, (int __fildes, mode_t __mode ));
+#if !defined(__INSIDE_CYGWIN__)
+int     _EXFUN(fchown, (int __fildes, uid_t __owner, gid_t __group ));
+#endif
+pid_t   _EXFUN(fork, (void ));
+long    _EXFUN(fpathconf, (int __fd, int __name ));
+int     _EXFUN(fsync, (int __fd));
+int     _EXFUN(fdatasync, (int __fd));
+char    _EXFUN(*getcwd, (char *__buf, size_t __size ));
+#if defined(__CYGWIN__)
+int	_EXFUN(getdomainname ,(char *__name, size_t __len));
+#endif
+#if !defined(__INSIDE_CYGWIN__)
+gid_t   _EXFUN(getegid, (void ));
+uid_t   _EXFUN(geteuid, (void ));
+gid_t   _EXFUN(getgid, (void ));
+#endif
+int     _EXFUN(getgroups, (int __gidsetsize, gid_t __grouplist[] ));
+#if defined(__CYGWIN__)
+long    _EXFUN(gethostid, (void));
+#endif
+char    _EXFUN(*getlogin, (void ));
+#if defined(_POSIX_THREAD_SAFE_FUNCTIONS)
+int _EXFUN(getlogin_r, (char *name, size_t namesize) );
+#endif
+char 	_EXFUN(*getpass, (const char *__prompt));
+size_t  _EXFUN(getpagesize, (void));
+#if defined(__CYGWIN__)
+int    _EXFUN(getpeereid, (int, uid_t *, gid_t *));
+#endif
+pid_t   _EXFUN(getpgid, (pid_t));
+pid_t   _EXFUN(getpgrp, (void ));
+pid_t   _EXFUN(getpid, (void ));
+pid_t   _EXFUN(getppid, (void ));
+#ifdef __CYGWIN__
+pid_t   _EXFUN(getsid, (pid_t));
+#endif
+#if !defined(__INSIDE_CYGWIN__)
+uid_t   _EXFUN(getuid, (void ));
+#endif
+#ifdef __CYGWIN__
+char *	_EXFUN(getusershell, (void));
+char    _EXFUN(*getwd, (char *__buf ));
+int	_EXFUN(iruserok, (unsigned long raddr, int superuser, const char *ruser, const char *luser));
+#endif
+int     _EXFUN(isatty, (int __fildes ));
+#if !defined(__INSIDE_CYGWIN__)
+int     _EXFUN(lchown, (const char *__path, uid_t __owner, gid_t __group ));
+#endif
+int     _EXFUN(link, (const char *__path1, const char *__path2 ));
+int	_EXFUN(nice, (int __nice_value ));
+#if !defined(__INSIDE_CYGWIN__)
+off_t   _EXFUN(lseek, (int __fildes, off_t __offset, int __whence ));
+#endif
+long    _EXFUN(pathconf, (const char *__path, int __name ));
+int     _EXFUN(pause, (void ));
+#ifdef __CYGWIN__
+int	_EXFUN(pthread_atfork, (void (*)(void), void (*)(void), void (*)(void)));
+#endif
+int     _EXFUN(pipe, (int __fildes[2] ));
+ssize_t _EXFUN(pread, (int __fd, void *__buf, size_t __nbytes, off_t __offset));
+ssize_t _EXFUN(pwrite, (int __fd, const void *__buf, size_t __nbytes, off_t __offset));
+_READ_WRITE_RETURN_TYPE _EXFUN(read, (int __fd, void *__buf, size_t __nbyte ));
+#if defined(__CYGWIN__)
+int	_EXFUN(rresvport, (int *__alport));
+int	_EXFUN(revoke, (char *__path));
+#endif
+int     _EXFUN(rmdir, (const char *__path ));
+#if defined(__CYGWIN__)
+int	_EXFUN(ruserok, (const char *rhost, int superuser, const char *ruser, const char *luser));
+#endif
+void *  _EXFUN(sbrk,  (ptrdiff_t __incr));
+#if !defined(__INSIDE_CYGWIN__)
+#if defined(__CYGWIN__)
+int     _EXFUN(setegid, (gid_t __gid ));
+int     _EXFUN(seteuid, (uid_t __uid ));
+#endif
+int     _EXFUN(setgid, (gid_t __gid ));
+#endif
+#if defined(__CYGWIN__)
+int	_EXFUN(setgroups, (int ngroups, const gid_t *grouplist ));
+#endif
+int     _EXFUN(setpgid, (pid_t __pid, pid_t __pgid ));
+int     _EXFUN(setpgrp, (void ));
+#if defined(__CYGWIN__) && !defined(__INSIDE_CYGWIN__)
+int	_EXFUN(setregid, (gid_t __rgid, gid_t __egid));
+int	_EXFUN(setreuid, (uid_t __ruid, uid_t __euid));
+#endif
+pid_t   _EXFUN(setsid, (void ));
+#if !defined(__INSIDE_CYGWIN__)
+int     _EXFUN(setuid, (uid_t __uid ));
+#endif
+#if defined(__CYGWIN__)
+void	_EXFUN(setusershell, (void));
+#endif
+unsigned _EXFUN(sleep, (unsigned int __seconds ));
+void    _EXFUN(swab, (const void *, void *, ssize_t));
+long    _EXFUN(sysconf, (int __name ));
+pid_t   _EXFUN(tcgetpgrp, (int __fildes ));
+int     _EXFUN(tcsetpgrp, (int __fildes, pid_t __pgrp_id ));
+char    _EXFUN(*ttyname, (int __fildes ));
+#if defined(__CYGWIN__)
+int     _EXFUN(ttyname_r, (int, char *, size_t)); 
+#endif
+int     _EXFUN(unlink, (const char *__path ));
+int     _EXFUN(vhangup, (void ));
+_READ_WRITE_RETURN_TYPE _EXFUN(write, (int __fd, const void *__buf, size_t __nbyte ));
+
+#ifdef __CYGWIN__
+# define __UNISTD_GETOPT__
+# include <getopt.h>
+# undef __UNISTD_GETOPT__
+#else
+extern char *optarg;			/* getopt(3) external variables */
+extern int optind, opterr, optopt;
+int	 getopt(int, char * const [], const char *);
+extern int optreset;			/* getopt(3) external variable */
+#endif
+
+#ifndef        _POSIX_SOURCE
+pid_t   _EXFUN(vfork, (void ));
+
+extern char *suboptarg;			/* getsubopt(3) external variable */
+int	 getsubopt(char **, char * const *, char **);
+#endif /* _POSIX_SOURCE */
+
+#ifdef _COMPILING_NEWLIB
+/* Provide prototypes for most of the _<systemcall> names that are
+   provided in newlib for some compilers.  */
+int     _EXFUN(_close, (int __fildes ));
+pid_t   _EXFUN(_fork, (void ));
+pid_t   _EXFUN(_getpid, (void ));
+int     _EXFUN(_link, (const char *__path1, const char *__path2 ));
+_off_t   _EXFUN(_lseek, (int __fildes, _off_t __offset, int __whence ));
+#ifdef __LARGE64_FILES
+_off64_t _EXFUN(_lseek64, (int __filedes, _off64_t __offset, int __whence ));
+#endif
+_READ_WRITE_RETURN_TYPE _EXFUN(_read, (int __fd, void *__buf, size_t __nbyte ));
+void *  _EXFUN(_sbrk,  (ptrdiff_t __incr));
+int     _EXFUN(_unlink, (const char *__path ));
+_READ_WRITE_RETURN_TYPE _EXFUN(_write, (int __fd, const void *__buf, size_t __nbyte ));
+int     _EXFUN(_execve, (const char *__path, char * const __argv[], char * const __envp[] ));
+#endif
+
+#if defined(__CYGWIN__) || defined(__rtems__) || defined(__sh__)
+#if !defined(__INSIDE_CYGWIN__)
+int     _EXFUN(ftruncate, (int __fd, off_t __length));
+int     _EXFUN(truncate, (const char *, off_t __length));
+#endif
+#endif
+#if defined(__CYGWIN__) || defined(__rtems__)
+int	_EXFUN(getdtablesize, (void));
+int	_EXFUN(setdtablesize, (int));
+useconds_t _EXFUN(ualarm, (useconds_t __useconds, useconds_t __interval));
+int	_EXFUN(usleep, (useconds_t __useconds));
+#if !(defined  (_WINSOCK_H) || defined (__USE_W32_SOCKETS))
+/* winsock[2].h defines as __stdcall, and with int as 2nd arg */
+ int	_EXFUN(gethostname, (char *__name, size_t __len));
+#endif
+char *	_EXFUN(mktemp, (char *));
+#if defined(__CYGWIN__)
+void    _EXFUN(sync, (void));
+#else /* defined(__rtems__) */
+int     _EXFUN(sync, (void));
+#endif
+#endif
+int     _EXFUN(readlink, (const char *__path, char *__buf, int __buflen));
+int     _EXFUN(symlink, (const char *__name1, const char *__name2));
+
+#define	F_OK	0
+#define	R_OK	4
+#define	W_OK	2
+#define	X_OK	1
+
+# define	SEEK_SET	0
+# define	SEEK_CUR	1
+# define	SEEK_END	2
+
+#include <sys/features.h>
+
+#define STDIN_FILENO    0       /* standard input file descriptor */
+#define STDOUT_FILENO   1       /* standard output file descriptor */
+#define STDERR_FILENO   2       /* standard error file descriptor */
+
+/*
+ *  4.8.1 Get Configurable System Variables, P1003.1b-1993, p. 96
+ *
+ *  NOTE: Table 4-2, Configurable System Variables, p. 96
+ */
+
+#define _SC_ARG_MAX                 0
+#define _SC_CHILD_MAX               1
+#define _SC_CLK_TCK                 2
+#define _SC_NGROUPS_MAX             3
+#define _SC_OPEN_MAX                4
+  /* no _SC_STREAM_MAX */
+#define _SC_JOB_CONTROL             5
+#define _SC_SAVED_IDS               6
+#define _SC_VERSION                 7
+#define _SC_PAGESIZE                8
+/* CYGWIN-specific values .. do not touch */
+#define _SC_NPROCESSORS_CONF        9
+#define _SC_NPROCESSORS_ONLN       10
+#define _SC_PHYS_PAGES             11
+#define _SC_AVPHYS_PAGES           12
+/* end of CYGWIN-specific values */
+#define _SC_MQ_OPEN_MAX            13
+#define _SC_MQ_PRIO_MAX            14
+#define _SC_RTSIG_MAX              15
+#define _SC_SEM_NSEMS_MAX          16
+#define _SC_SEM_VALUE_MAX          17
+#define _SC_SIGQUEUE_MAX           18
+#define _SC_TIMER_MAX              19
+#define _SC_TZNAME_MAX             20
+
+#define _SC_ASYNCHRONOUS_IO        21
+#define _SC_FSYNC                  22
+#define _SC_MAPPED_FILES           23
+#define _SC_MEMLOCK                24
+#define _SC_MEMLOCK_RANGE          25
+#define _SC_MEMORY_PROTECTION      26
+#define _SC_MESSAGE_PASSING        27
+#define _SC_PRIORITIZED_IO         28
+#define _SC_REALTIME_SIGNALS       29
+#define _SC_SEMAPHORES             30
+#define _SC_SHARED_MEMORY_OBJECTS  31
+#define _SC_SYNCHRONIZED_IO        32
+#define _SC_TIMERS                 33
+#define _SC_AIO_LISTIO_MAX         34
+#define _SC_AIO_MAX                35
+#define _SC_AIO_PRIO_DELTA_MAX     36
+#define _SC_DELAYTIMER_MAX         37
+
+/*
+ *  P1003.1c/D10, p. 52 adds the following.
+ */
+
+#define _SC_THREAD_KEYS_MAX              38
+#define _SC_THREAD_STACK_MIN             39
+#define _SC_THREAD_THREADS_MAX           40
+#define _SC_TTY_NAME_MAX                 41
+
+#define _SC_THREADS                      42
+#define _SC_THREAD_ATTR_STACKADDR        43
+#define _SC_THREAD_ATTR_STACKSIZE        44
+#define _SC_THREAD_PRIORITY_SCHEDULING   45
+#define _SC_THREAD_PRIO_INHERIT          46
+/* _SC_THREAD_PRIO_PROTECT was _SC_THREAD_PRIO_CEILING in early drafts */
+#define _SC_THREAD_PRIO_PROTECT          47
+#define _SC_THREAD_PRIO_CEILING          _SC_THREAD_PRIO_PROTECT
+#define _SC_THREAD_PROCESS_SHARED        48
+#define _SC_THREAD_SAFE_FUNCTIONS        49
+#define _SC_GETGR_R_SIZE_MAX             50
+#define _SC_GETPW_R_SIZE_MAX             51
+#define _SC_LOGIN_NAME_MAX               52
+#define _SC_THREAD_DESTRUCTOR_ITERATIONS 53
+
+#if !defined(__CYGWIN__) && !defined(__rtems__)
+#define _SC_STREAM_MAX			100
+#define _SC_PRIORITY_SCHEDULING		101
+#endif
+  
+# define	_PC_LINK_MAX	        0
+# define	_PC_MAX_CANON	        1
+# define	_PC_MAX_INPUT	        2
+# define	_PC_NAME_MAX	        3
+# define	_PC_PATH_MAX	        4
+# define	_PC_PIPE_BUF	        5
+# define	_PC_CHOWN_RESTRICTED   	6
+# define	_PC_NO_TRUNC	        7
+# define	_PC_VDISABLE	        8
+# define	_PC_ASYNC_IO            9
+# define	_PC_PRIO_IO            10
+# define	_PC_SYNC_IO            11
+#ifdef __CYGWIN__
+/* Ask for POSIX permission bits support. */
+# define	_PC_POSIX_PERMISSIONS   90
+/* Ask for full POSIX permission support including uid/gid settings. */
+# define	_PC_POSIX_SECURITY     91
+#endif
+
+/* FIXME: This is temporary until winsup gets sorted out.  */
+#ifdef __CYGWIN__
+#define MAXPATHLEN (260 - 1 /* NUL */)
+#else
+# define	MAXPATHLEN	1024
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _SYS_UNISTD_H */
diff --git a/newlib/libc/reent/timer.c b/newlib/libc/reent/timer.c
new file mode 100644
index 00000000000..6aa4e02f3f1
--- /dev/null
+++ b/newlib/libc/reent/timer.c
@@ -0,0 +1,113 @@
+/* Reentrant versions of times and gettimeofday system calls for the
+   clock and time ANSI C routines.
+   This implementation just calls the times/gettimeofday system calls.
+   Gettimeofday may not be available on all targets.  It's presence
+   here is dubious.  Consider it for internal use only.  */
+
+#include <reent.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/times.h>
+#include <_syslist.h>
+
+/* Some targets provides their own versions of these functions.  Those
+   targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS.  */
+
+#ifdef _REENT_ONLY
+#ifndef REENTRANT_SYSCALLS_PROVIDED
+#define REENTRANT_SYSCALLS_PROVIDED
+#endif
+#endif
+
+#ifdef REENTRANT_SYSCALLS_PROVIDED
+
+int _dummy_time_syscalls = 1;
+
+#else
+
+/* We use the errno variable used by the system dependent layer.  */
+#undef errno
+extern int errno;
+
+/*
+FUNCTION
+	<<_times_r>>---Reentrant version of times
+	
+INDEX
+	_times_r
+
+ANSI_SYNOPSIS
+	#include <reent.h>
+	#include <sys/times.h>
+	clock_t _times_r(struct _reent *<[ptr]>, struct tms *<[ptms]>);
+
+TRAD_SYNOPSIS
+	#include <reent.h>
+	#include <sys/times.h>
+	clock_t _times_r(<[ptr]>, <[ptms]>)
+	struct _reent *<[ptr]>;
+	struct tms *<[ptms]>;
+
+DESCRIPTION
+	This is a reentrant version of <<times>>.  It
+	takes a pointer to the global data block, which holds
+	<<errno>>.
+*/
+
+clock_t
+_DEFUN (_times_r, (ptr, ptms),
+     struct _reent *ptr _AND
+     struct tms *ptms)
+{
+  clock_t ret;
+
+  ret = _times (ptms);
+  return ret;
+}
+
+/*
+FUNCTION
+	<<_gettimeofday_r>>---Reentrant version of gettimeofday
+	
+INDEX
+	_gettimeofday_r
+
+ANSI_SYNOPSIS
+	#include <reent.h>
+	#include <time.h>
+	int _gettimeofday_r(struct _reent *<[ptr]>,
+		struct timeval *<[ptimeval]>,
+		void *<[ptimezone]>);
+
+TRAD_SYNOPSIS
+	#include <reent.h>
+	#include <time.h>
+	int _gettimeofday_r(<[ptr]>, <[ptimeval]>, <[ptimezone]>)
+	struct _reent *<[ptr]>;
+	struct timeval *<[ptimeval]>;
+	void *<[ptimezone]>;
+
+DESCRIPTION
+	This is a reentrant version of <<gettimeofday>>.  It
+	takes a pointer to the global data block, which holds
+	<<errno>>.
+
+	This function is only available for a few targets.
+	Check libc.a to see if its available on yours.
+*/
+
+int
+_DEFUN (_gettimeofday_r, (ptr, ptimeval, ptimezone),
+     struct _reent *ptr _AND
+     struct timeval *ptimeval _AND
+     void *ptimezone)
+{
+  int ret;
+
+  errno = 0;
+  if ((ret = _gettimeofday (ptimeval, ptimezone)) == -1 && errno != 0)
+    ptr->_errno = errno;
+  return ret;
+}
+
+#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */