Merge commit 'refs/top-bases/t/bigmem' into t/bigmem

87 files changed, 656 insertions, 612 deletions

diff --git a/sysdeps/posix/Makefile b/sysdeps/posix/Makefile
index b58aa6aadb..52f20f5d97 100644
--- a/sysdeps/posix/Makefile
+++ b/sysdeps/posix/Makefile
@@ -3,3 +3,9 @@ L_tmpnam  = 20
 TMP_MAX   = 238328
 L_ctermid = 9
 L_cuserid = 9
+
+ifeq ($(subdir)|$(have-thread-library),rt|no)
+# With NPTL, this lives in libpthread so it can be used for sem_open too.
+# Without NPTL, it's just private in librt.
+librt-routines += shm-directory
+endif
diff --git a/sysdeps/posix/Subdirs b/sysdeps/posix/Subdirs
new file mode 100644
index 0000000000..a46884d4f8
--- /dev/null
+++ b/sysdeps/posix/Subdirs
@@ -0,0 +1 @@
+login
diff --git a/sysdeps/posix/alarm.c b/sysdeps/posix/alarm.c
index c68ae51d4a..002366462c 100644
--- a/sysdeps/posix/alarm.c
+++ b/sysdeps/posix/alarm.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/clock.c b/sysdeps/posix/clock.c
index d91b56a705..d425190bdc 100644
--- a/sysdeps/posix/clock.c
+++ b/sysdeps/posix/clock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/clock_getres.c b/sysdeps/posix/clock_getres.c
index 27f264bb16..7202b9b07d 100644
--- a/sysdeps/posix/clock_getres.c
+++ b/sysdeps/posix/clock_getres.c
@@ -1,5 +1,5 @@
 /* clock_getres -- Get the resolution of a POSIX clockid_t.
-   Copyright (C) 1999-2014 Free Software Foundation, Inc.
+   Copyright (C) 1999-2015 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
@@ -30,7 +30,7 @@ static long int nsec;		/* Clock frequency of the processor.  */
 static int
 hp_timing_getres (struct timespec *res)
 {
-  if (__builtin_expect (nsec == 0, 0))
+  if (__glibc_unlikely (nsec == 0))
     {
       hp_timing_t freq;
 
@@ -39,7 +39,7 @@ hp_timing_getres (struct timespec *res)
 	 code against multiple execution since all of them should
 	 lead to the same result.  */
       freq = __get_clockfreq ();
-      if (__builtin_expect (freq == 0, 0))
+      if (__glibc_unlikely (freq == 0))
 	/* Something went wrong.  */
 	return -1;
 
@@ -60,7 +60,7 @@ realtime_getres (struct timespec *res)
 {
   long int clk_tck = sysconf (_SC_CLK_TCK);
 
-  if (__builtin_expect (clk_tck != -1, 1))
+  if (__glibc_likely (clk_tck != -1))
     {
       /* This implementation assumes that the realtime clock has a
 	 resolution higher than 1 second.  This is the case for any
diff --git a/sysdeps/posix/closedir.c b/sysdeps/posix/closedir.c
index 24ba1a5c42..e352c0b1af 100644
--- a/sysdeps/posix/closedir.c
+++ b/sysdeps/posix/closedir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -43,7 +43,7 @@ __closedir (DIR *dirp)
 
   fd = dirp->fd;
 
-#ifndef NOT_IN_libc
+#if IS_IN (libc)
   __libc_lock_fini (dirp->lock);
 #endif
 
diff --git a/sysdeps/posix/ctermid.c b/sysdeps/posix/ctermid.c
index 0ef9a3fe23..5a6ff02d78 100644
--- a/sysdeps/posix/ctermid.c
+++ b/sysdeps/posix/ctermid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -19,17 +19,17 @@
 #include <string.h>
 
 
-/* Return the name of the controlling terminal.
-   If S is not NULL, the name is copied into it (it should be at
-   least L_ctermid bytes long), otherwise a static buffer is used.  */
+/* Return the name of the controlling terminal.  If S is not NULL, the
+   name is copied into it (it should be at least L_ctermid bytes
+   long), otherwise we return a pointer to a non-const but read-only
+   string literal, that POSIX states the caller must not modify.  */
 char *
-ctermid (s)
-     char *s;
+ctermid (char *s)
 {
-  static char name[L_ctermid];
+  char *name = (char /*drop const*/ *) "/dev/tty";
 
   if (s == NULL)
-    s = name;
+    return name;
 
-  return strcpy (s, "/dev/tty");
+  return strcpy (s, name);
 }
diff --git a/sysdeps/posix/cuserid.c b/sysdeps/posix/cuserid.c
index 57ddca4ef3..acdd20cd5e 100644
--- a/sysdeps/posix/cuserid.c
+++ b/sysdeps/posix/cuserid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/dirfd.c b/sysdeps/posix/dirfd.c
index 5af57146fd..1630f8987b 100644
--- a/sysdeps/posix/dirfd.c
+++ b/sysdeps/posix/dirfd.c
@@ -1,5 +1,5 @@
 /* Return the file descriptor used by a DIR stream.  Unix version.
-   Copyright (C) 1995-2014 Free Software Foundation, Inc.
+   Copyright (C) 1995-2015 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
diff --git a/sysdeps/posix/dirstream.h b/sysdeps/posix/dirstream.h
index dadc30e8dd..c7e1a5af5c 100644
--- a/sysdeps/posix/dirstream.h
+++ b/sysdeps/posix/dirstream.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2015 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
diff --git a/sysdeps/posix/dl-fileid.h b/sysdeps/posix/dl-fileid.h
new file mode 100644
index 0000000000..d0d5436641
--- /dev/null
+++ b/sysdeps/posix/dl-fileid.h
@@ -0,0 +1,50 @@
+/* File identity for the dynamic linker.  Generic POSIX.1 version.
+   Copyright (C) 2015 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/>.  */
+
+#include <stdbool.h>
+#include <sys/stat.h>
+
+/* For POSIX.1 systems, the pair of st_dev and st_ino constitute
+   a unique identifier for a file.  */
+struct r_file_id
+  {
+    dev_t dev;
+    ino64_t ino;
+  };
+
+/* Sample FD to fill in *ID.  Returns true on success.
+   On error, returns false, with errno set.  */
+static inline bool
+_dl_get_file_id (int fd, struct r_file_id *id)
+{
+  struct stat64 st;
+
+  if (__glibc_unlikely (__fxstat64 (_STAT_VER, fd, &st) < 0))
+    return false;
+
+  id->dev = st.st_dev;
+  id->ino = st.st_ino;
+  return true;
+}
+
+/* Compare two results from _dl_get_file_id for equality.  */
+static inline bool
+_dl_file_id_match_p (const struct r_file_id *a, const struct r_file_id *b)
+{
+  return a->dev == b->dev && a->ino == b->ino;
+}
diff --git a/sysdeps/posix/dup.c b/sysdeps/posix/dup.c
index fd989a072d..02d7097b4c 100644
--- a/sysdeps/posix/dup.c
+++ b/sysdeps/posix/dup.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/dup2.c b/sysdeps/posix/dup2.c
index db7ad8e75e..ab983bcf74 100644
--- a/sysdeps/posix/dup2.c
+++ b/sysdeps/posix/dup2.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/euidaccess.c b/sysdeps/posix/euidaccess.c
index 1cdf22b286..15340572c3 100644
--- a/sysdeps/posix/euidaccess.c
+++ b/sysdeps/posix/euidaccess.c
@@ -1,5 +1,5 @@
 /* Check if effective user id can access file
-   Copyright (C) 1990-2014 Free Software Foundation, Inc.
+   Copyright (C) 1990-2015 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
diff --git a/sysdeps/posix/fdopendir.c b/sysdeps/posix/fdopendir.c
index d8c6ec0513..3dc50a38a4 100644
--- a/sysdeps/posix/fdopendir.c
+++ b/sysdeps/posix/fdopendir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005-2014 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2015 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
@@ -31,7 +31,7 @@ __fdopendir (int fd)
 
   if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &statbuf), 0) < 0)
     return NULL;
-  if (__builtin_expect (! S_ISDIR (statbuf.st_mode), 0))
+  if (__glibc_unlikely (! S_ISDIR (statbuf.st_mode)))
     {
       __set_errno (ENOTDIR);
       return NULL;
@@ -39,9 +39,9 @@ __fdopendir (int fd)
 
   /* Make sure the descriptor allows for reading.  */
   int flags = __fcntl (fd, F_GETFL);
-  if (__builtin_expect (flags == -1, 0))
+  if (__glibc_unlikely (flags == -1))
     return NULL;
-  if (__builtin_expect ((flags & O_ACCMODE) == O_WRONLY, 0))
+  if (__glibc_unlikely ((flags & O_ACCMODE) == O_WRONLY))
     {
       __set_errno (EINVAL);
       return NULL;
diff --git a/sysdeps/posix/flock.c b/sysdeps/posix/flock.c
index 72616c39b1..ba7078bdbc 100644
--- a/sysdeps/posix/flock.c
+++ b/sysdeps/posix/flock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2015 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
diff --git a/sysdeps/posix/fpathconf.c b/sysdeps/posix/fpathconf.c
index 2797fede74..25f632ee84 100644
--- a/sysdeps/posix/fpathconf.c
+++ b/sysdeps/posix/fpathconf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/gai_strerror.c b/sysdeps/posix/gai_strerror.c
index 1ebb42c8c1..e6d1283414 100644
--- a/sysdeps/posix/gai_strerror.c
+++ b/sysdeps/posix/gai_strerror.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997.
 
diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index 8218237af2..31bb7e66dc 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -471,7 +471,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
 	    bool malloc_namebuf = false;
 	    char *namebuf = (char *) name;
 
-	    if (__builtin_expect (scope_delim != NULL, 0))
+	    if (__glibc_unlikely (scope_delim != NULL))
 	      {
 		if (malloc_name)
 		  *scope_delim = '\0';
@@ -712,6 +712,18 @@ gaih_inet (const char *name, const struct gaih_service *service,
 		    {
 		      socklen_t size = (air->family[i] == AF_INET
 					? INADDRSZ : IN6ADDRSZ);
+
+		      if (!((air->family[i] == AF_INET
+			     && req->ai_family == AF_INET6
+			     && (req->ai_flags & AI_V4MAPPED) != 0)
+			    || req->ai_family == AF_UNSPEC
+			    || air->family[i] == req->ai_family))
+			{
+			  /* Skip over non-matching result.  */
+			  addrs += size;
+			  continue;
+			}
+
 		      if (*pat == NULL)
 			{
 			  *pat = addrfree++;
@@ -855,8 +867,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
 		      if (status != NSS_STATUS_TRYAGAIN
 			  || rc != ERANGE || herrno != NETDB_INTERNAL)
 			{
-			  if (status == NSS_STATUS_TRYAGAIN
-			      && herrno == TRY_AGAIN)
+			  if (herrno == TRY_AGAIN)
 			    no_data = EAI_AGAIN;
 			  else
 			    no_data = herrno == NO_DATA;
@@ -2608,18 +2619,18 @@ getaddrinfo (const char *name, const char *service,
 	 the information.  */
       struct sort_result_combo src
 	= { .results = results, .nresults = nresults };
-      if (__builtin_expect (gaiconf_reload_flag_ever_set, 0))
+      if (__glibc_unlikely (gaiconf_reload_flag_ever_set))
 	{
 	  __libc_lock_define_initialized (static, lock);
 
 	  __libc_lock_lock (lock);
 	  if (__libc_once_get (old_once) && gaiconf_reload_flag)
 	    gaiconf_reload ();
-	  qsort_r (order, nresults, sizeof (order[0]), rfc3484_sort, &src);
+	  __qsort_r (order, nresults, sizeof (order[0]), rfc3484_sort, &src);
 	  __libc_lock_unlock (lock);
 	}
       else
-	qsort_r (order, nresults, sizeof (order[0]), rfc3484_sort, &src);
+	__qsort_r (order, nresults, sizeof (order[0]), rfc3484_sort, &src);
 
       /* Queue the results up as they come out of sorting.  */
       q = p = results[order[0]].dest_addr;
diff --git a/sysdeps/posix/getcwd.c b/sysdeps/posix/getcwd.c
index 61924d5748..afe696767a 100644
--- a/sysdeps/posix/getcwd.c
+++ b/sysdeps/posix/getcwd.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -195,6 +195,10 @@ extern char *alloca ();
 #ifndef __GNU_LIBRARY__
 # define __lstat64	stat64
 #endif
+
+#ifndef _LIBC
+# define __rewinddir	rewinddir
+#endif
 
 #ifndef _LIBC
 # define __getcwd getcwd
@@ -206,7 +210,7 @@ extern char *alloca ();
 
 #ifdef __ASSUME_ATFCTS
 # define __have_atfcts 1
-#elif defined NOT_IN_libc && defined IS_IN_rtld
+#elif IS_IN (rtld)
 static int __rtld_have_atfcts;
 # define __have_atfcts __rtld_have_atfcts
 #endif
@@ -390,7 +394,7 @@ __getcwd (buf, size)
 		  if (use_d_ino)
 		    {
 		      use_d_ino = false;
-		      rewinddir (dirstream);
+		      __rewinddir (dirstream);
 		      continue;
 		    }
 
diff --git a/sysdeps/posix/getdtsz.c b/sysdeps/posix/getdtsz.c
index 96e6991216..431b5d666e 100644
--- a/sysdeps/posix/getdtsz.c
+++ b/sysdeps/posix/getdtsz.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/gethostname.c b/sysdeps/posix/gethostname.c
index 5393e92be7..49177059c6 100644
--- a/sysdeps/posix/gethostname.c
+++ b/sysdeps/posix/gethostname.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2015 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
diff --git a/sysdeps/posix/getpagesize.c b/sysdeps/posix/getpagesize.c
index 31eae75799..112b59b325 100644
--- a/sysdeps/posix/getpagesize.c
+++ b/sysdeps/posix/getpagesize.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1993-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Brendan Kehoe (brendan@cygnus.com).
 
diff --git a/sysdeps/posix/gettimeofday.c b/sysdeps/posix/gettimeofday.c
index 529cdf773d..018acdfd0a 100644
--- a/sysdeps/posix/gettimeofday.c
+++ b/sysdeps/posix/gettimeofday.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/isatty.c b/sysdeps/posix/isatty.c
index 781ce29fdc..807631a484 100644
--- a/sysdeps/posix/isatty.c
+++ b/sysdeps/posix/isatty.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/isfdtype.c b/sysdeps/posix/isfdtype.c
index 5328e6de15..98d424f7d6 100644
--- a/sysdeps/posix/isfdtype.c
+++ b/sysdeps/posix/isfdtype.c
@@ -1,5 +1,5 @@
 /* Determine whether descriptor has given property.
-   Copyright (C) 1996-2014 Free Software Foundation, Inc.
+   Copyright (C) 1996-2015 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
diff --git a/sysdeps/posix/killpg.c b/sysdeps/posix/killpg.c
index 4c275a4c2e..77ffc7c1d8 100644
--- a/sysdeps/posix/killpg.c
+++ b/sysdeps/posix/killpg.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/libc_fatal.c b/sysdeps/posix/libc_fatal.c
index 74e40ee4d2..2d99c46cf8 100644
--- a/sysdeps/posix/libc_fatal.c
+++ b/sysdeps/posix/libc_fatal.c
@@ -1,5 +1,5 @@
 /* Catastrophic failure reports.  Generic POSIX.1 version.
-   Copyright (C) 1993-2014 Free Software Foundation, Inc.
+   Copyright (C) 1993-2015 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
diff --git a/sysdeps/posix/mkfifo.c b/sysdeps/posix/mkfifo.c
index cdb2f5d967..31fac04c65 100644
--- a/sysdeps/posix/mkfifo.c
+++ b/sysdeps/posix/mkfifo.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/mkfifoat.c b/sysdeps/posix/mkfifoat.c
index ab269e9535..c7770eb60d 100644
--- a/sysdeps/posix/mkfifoat.c
+++ b/sysdeps/posix/mkfifoat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005-2014 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2015 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
diff --git a/sysdeps/posix/nice.c b/sysdeps/posix/nice.c
index 087b22cced..42bb99b7e1 100644
--- a/sysdeps/posix/nice.c
+++ b/sysdeps/posix/nice.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2015 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
@@ -31,7 +31,7 @@ nice (int incr)
   /* -1 is a valid priority, so we use errno to check for an error.  */
   save = errno;
   __set_errno (0);
-  prio = getpriority (PRIO_PROCESS, 0);
+  prio = __getpriority (PRIO_PROCESS, 0);
   if (prio == -1)
     {
       if (errno != 0)
@@ -40,12 +40,12 @@ nice (int incr)
 	__set_errno (save);
     }
 
-  result = setpriority (PRIO_PROCESS, 0, prio + incr);
+  result = __setpriority (PRIO_PROCESS, 0, prio + incr);
   if (result == -1)
     {
       if (errno == EACCES)
 	errno = EPERM;
       return -1;
     }
-  return getpriority (PRIO_PROCESS, 0);
+  return __getpriority (PRIO_PROCESS, 0);
 }
diff --git a/sysdeps/posix/open64.c b/sysdeps/posix/open64.c
index 64d192af97..74f669f408 100644
--- a/sysdeps/posix/open64.c
+++ b/sysdeps/posix/open64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -19,14 +19,14 @@
 #include <stdarg.h>
 #include <sysdep-cancel.h>
 
-/* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
+/* Open FILE with access OFLAG.  If O_CREAT or O_TMPFILE is in OFLAG,
    a third argument is the file protection.  */
 int
 __libc_open64 (const char *file, int oflag, ...)
 {
   int mode = 0;
 
-  if (oflag & O_CREAT)
+  if (__OPEN_NEEDS_MODE (oflag))
     {
       va_list arg;
       va_start (arg, oflag);
diff --git a/sysdeps/posix/opendir.c b/sysdeps/posix/opendir.c
index e366701bd4..6509f5c05c 100644
--- a/sysdeps/posix/opendir.c
+++ b/sysdeps/posix/opendir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -18,6 +18,7 @@
 #include <assert.h>
 #include <errno.h>
 #include <limits.h>
+#include <stdbool.h>
 #include <stddef.h>
 #include <stdlib.h>
 #include <dirent.h>
@@ -81,83 +82,122 @@ tryopen_o_directory (void)
 #endif
 
 
-DIR *
-internal_function
-__opendirat (int dfd, const char *name)
+static bool
+invalid_name (const char *name)
 {
-  struct stat64 statbuf;
-  struct stat64 *statp = NULL;
-
-  if (__builtin_expect (name[0], '\1') == '\0')
+  if (__glibc_unlikely (name[0] == '\0'))
     {
       /* POSIX.1-1990 says an empty name gets ENOENT;
 	 but `open' might like it fine.  */
       __set_errno (ENOENT);
-      return NULL;
+      return true;
     }
+  return false;
+}
+
 
+static bool
+need_isdir_precheck (void)
+{
 #ifdef O_DIRECTORY
   /* Test whether O_DIRECTORY works.  */
   if (o_directory_works == 0)
     tryopen_o_directory ();
 
   /* We can skip the expensive `stat' call if O_DIRECTORY works.  */
-  if (o_directory_works < 0)
+  return o_directory_works > 0;
 #endif
-    {
-      /* We first have to check whether the name is for a directory.  We
-	 cannot do this after the open() call since the open/close operation
-	 performed on, say, a tape device might have undesirable effects.  */
-      if (__builtin_expect (__xstat64 (_STAT_VER, name, &statbuf), 0) < 0)
-	return NULL;
-      if (__builtin_expect (! S_ISDIR (statbuf.st_mode), 0))
-	{
-	  __set_errno (ENOTDIR);
-	  return NULL;
-	 }
-    }
+  return true;
+}
+
 
+static int
+opendir_oflags (void)
+{
   int flags = O_RDONLY|O_NDELAY|EXTRA_FLAGS|O_LARGEFILE;
 #ifdef O_CLOEXEC
   flags |= O_CLOEXEC;
 #endif
-  int fd;
-#ifdef IS_IN_rtld
-  assert (dfd == AT_FDCWD);
-  fd = open_not_cancel_2 (name, flags);
-#else
-  fd = openat_not_cancel_3 (dfd, name, flags);
-#endif
-  if (__builtin_expect (fd, 0) < 0)
+  return flags;
+}
+
+
+static DIR *
+opendir_tail (int fd)
+{
+  if (__glibc_unlikely (fd < 0))
     return NULL;
 
-#ifdef O_DIRECTORY
-  if (o_directory_works <= 0)
-#endif
+  /* Now make sure this really is a directory and nothing changed since the
+     `stat' call.  The S_ISDIR check is superfluous if O_DIRECTORY works,
+     but it's cheap and we need the stat call for st_blksize anyway.  */
+  struct stat64 statbuf;
+  if (__glibc_unlikely (__fxstat64 (_STAT_VER, fd, &statbuf) < 0))
+    goto lose;
+  if (__glibc_unlikely (! S_ISDIR (statbuf.st_mode)))
     {
-      /* Now make sure this really is a directory and nothing changed since
-	 the `stat' call.  */
-      if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &statbuf), 0) < 0)
-	goto lose;
-      if (__builtin_expect (! S_ISDIR (statbuf.st_mode), 0))
+      __set_errno (ENOTDIR);
+    lose:
+      close_not_cancel_no_status (fd);
+      return NULL;
+    }
+
+  return __alloc_dir (fd, true, 0, &statbuf);
+}
+
+
+#if IS_IN (libc)
+DIR *
+internal_function
+__opendirat (int dfd, const char *name)
+{
+  if (__glibc_unlikely (invalid_name (name)))
+    return NULL;
+
+  if (need_isdir_precheck ())
+    {
+      /* We first have to check whether the name is for a directory.  We
+	 cannot do this after the open() call since the open/close operation
+	 performed on, say, a tape device might have undesirable effects.  */
+      struct stat64 statbuf;
+      if (__glibc_unlikely (__fxstatat64 (_STAT_VER, dfd, name,
+					  &statbuf, 0) < 0))
+	return NULL;
+      if (__glibc_unlikely (! S_ISDIR (statbuf.st_mode)))
 	{
 	  __set_errno (ENOTDIR);
-	lose:
-	  close_not_cancel_no_status (fd);
 	  return NULL;
 	}
-      statp = &statbuf;
     }
 
-  return __alloc_dir (fd, true, 0, statp);
+  return opendir_tail (openat_not_cancel_3 (dfd, name, opendir_oflags ()));
 }
+#endif
 
 
 /* Open a directory stream on NAME.  */
 DIR *
 __opendir (const char *name)
 {
-  return __opendirat (AT_FDCWD, name);
+  if (__glibc_unlikely (invalid_name (name)))
+    return NULL;
+
+  if (need_isdir_precheck ())
+    {
+      /* We first have to check whether the name is for a directory.  We
+	 cannot do this after the open() call since the open/close operation
+	 performed on, say, a tape device might have undesirable effects.  */
+      struct stat64 statbuf;
+      if (__glibc_unlikely (__xstat64 (_STAT_VER, name, &statbuf) < 0))
+	return NULL;
+      if (__glibc_unlikely (! S_ISDIR (statbuf.st_mode)))
+	{
+	  __set_errno (ENOTDIR);
+	  return NULL;
+	}
+    }
+
+  return opendir_tail (open_not_cancel_2 (name, opendir_oflags ()));
 }
 weak_alias (__opendir, opendir)
 
@@ -224,7 +264,7 @@ __alloc_dir (int fd, bool close_fd, int flags, const struct stat64 *statp)
     }
 
   dirp->fd = fd;
-#ifndef NOT_IN_libc
+#if IS_IN (libc)
   __libc_lock_init (dirp->lock);
 #endif
   dirp->allocation = allocation;
diff --git a/sysdeps/posix/pathconf.c b/sysdeps/posix/pathconf.c
index 8aa55e0856..ff77f0662c 100644
--- a/sysdeps/posix/pathconf.c
+++ b/sysdeps/posix/pathconf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -65,10 +65,10 @@ __pathconf (const char *path, int name)
     case _PC_NAME_MAX:
 #ifdef	NAME_MAX
       {
-	struct statfs buf;
+	struct statvfs64 sv;
 	int save_errno = errno;
 
-	if (__statfs (path, &buf) < 0)
+	if (__statvfs64 (path, &sv) < 0)
 	  {
 	    if (errno == ENOSYS)
 	      {
@@ -79,15 +79,7 @@ __pathconf (const char *path, int name)
 	  }
 	else
 	  {
-#ifdef _STATFS_F_NAMELEN
-	    return buf.f_namelen;
-#else
-# ifdef _STATFS_F_NAME_MAX
-	    return buf.f_name_max;
-# else
-	    return NAME_MAX;
-# endif
-#endif
+	    return sv.f_namemax;
 	  }
       }
 #else
diff --git a/sysdeps/posix/pause.c b/sysdeps/posix/pause.c
index 6d3bfc5c46..6ba4d42281 100644
--- a/sysdeps/posix/pause.c
+++ b/sysdeps/posix/pause.c
@@ -1,5 +1,5 @@
 /* pause -- suspend the process until a signal arrives.  POSIX.1 version.
-   Copyright (C) 2003-2014 Free Software Foundation, Inc.
+   Copyright (C) 2003-2015 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
diff --git a/sysdeps/posix/posix_fallocate.c b/sysdeps/posix/posix_fallocate.c
index fc5f8833ea..e7fe201b68 100644
--- a/sysdeps/posix/posix_fallocate.c
+++ b/sysdeps/posix/posix_fallocate.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2014 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2015 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
@@ -18,26 +18,36 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <stdint.h>
+#include <sys/fcntl.h>
 #include <sys/stat.h>
 #include <sys/statfs.h>
 
-/* Reserve storage for the data of the file associated with FD.  */
+/* Reserve storage for the data of the file associated with FD.  This
+   emulation is far from perfect, but the kernel cannot do not much
+   better for network file systems, either.  */
 
 int
 posix_fallocate (int fd, __off_t offset, __off_t len)
 {
   struct stat64 st;
-  struct statfs f;
 
-  /* `off_t' is a signed type.  Therefore we can determine whether
-     OFFSET + LEN is too large if it is a negative value.  */
   if (offset < 0 || len < 0)
     return EINVAL;
-  if (offset + len < 0)
+
+  /* Perform overflow check.  The outer cast relies on a GCC
+     extension.  */
+  if ((__off_t) ((uint64_t) offset) + ((uint64_t) len) < 0)
     return EFBIG;
 
-  /* First thing we have to make sure is that this is really a regular
-     file.  */
+  /* pwrite below will not do the right thing in O_APPEND mode.  */
+  {
+    int flags = __fcntl (fd, F_GETFL, 0);
+    if (flags < 0 || (flags & O_APPEND) != 0)
+      return EBADF;
+  }
+
+  /* We have to make sure that this is really a regular file.  */
   if (__fxstat64 (_STAT_VER, fd, &st) != 0)
     return EBADF;
   if (S_ISFIFO (st.st_mode))
@@ -47,6 +57,8 @@ posix_fallocate (int fd, __off_t offset, __off_t len)
 
   if (len == 0)
     {
+      /* This is racy, but there is no good way to satisfy a
+	 zero-length allocation request.  */
       if (st.st_size < offset)
 	{
 	  int ret = __ftruncate (fd, offset);
@@ -58,19 +70,36 @@ posix_fallocate (int fd, __off_t offset, __off_t len)
       return 0;
     }
 
-  /* We have to know the block size of the filesystem to get at least some
-     sort of performance.  */
-  if (__fstatfs (fd, &f) != 0)
-    return errno;
-
-  /* Try to play safe.  */
-  if (f.f_bsize == 0)
-    f.f_bsize = 512;
-
-  /* Write something to every block.  */
-  for (offset += (len - 1) % f.f_bsize; len > 0; offset += f.f_bsize)
+  /* Minimize data transfer for network file systems, by issuing
+     single-byte write requests spaced by the file system block size.
+     (Most local file systems have fallocate support, so this fallback
+     code is not used there.)  */
+
+  unsigned increment;
+  {
+    struct statfs64 f;
+
+    if (__fstatfs64 (fd, &f) != 0)
+      return errno;
+    if (f.f_bsize == 0)
+      increment = 512;
+    else if (f.f_bsize < 4096)
+      increment = f.f_bsize;
+    else
+      /* NFS does not propagate the block size of the underlying
+	 storage and may report a much larger value which would still
+	 leave holes after the loop below, so we cap the increment at
+	 4096.  */
+      increment = 4096;
+  }
+
+  /* Write a null byte to every block.  This is racy; we currently
+     lack a better option.  Compare-and-swap against a file mapping
+     might additional local races, but requires interposition of a
+     signal handler to catch SIGBUS.  */
+  for (offset += (len - 1) % increment; len > 0; offset += increment)
     {
-      len -= f.f_bsize;
+      len -= increment;
 
       if (offset < st.st_size)
 	{
diff --git a/sysdeps/posix/posix_fallocate64.c b/sysdeps/posix/posix_fallocate64.c
index 729e84cddf..ee32679a05 100644
--- a/sysdeps/posix/posix_fallocate64.c
+++ b/sysdeps/posix/posix_fallocate64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2014 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2015 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
@@ -18,26 +18,36 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <stdint.h>
+#include <sys/fcntl.h>
 #include <sys/stat.h>
 #include <sys/statfs.h>
 
-/* Reserve storage for the data of the file associated with FD.  */
+/* Reserve storage for the data of the file associated with FD.  This
+   emulation is far from perfect, but the kernel cannot do not much
+   better for network file systems, either.  */
 
 int
 __posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len)
 {
   struct stat64 st;
-  struct statfs64 f;
 
-  /* `off64_t' is a signed type.  Therefore we can determine whether
-     OFFSET + LEN is too large if it is a negative value.  */
   if (offset < 0 || len < 0)
     return EINVAL;
-  if (offset + len < 0)
+
+  /* Perform overflow check.  The outer cast relies on a GCC
+     extension.  */
+  if ((__off64_t) ((uint64_t) offset) + ((uint64_t) len) < 0)
     return EFBIG;
 
-  /* First thing we have to make sure is that this is really a regular
-     file.  */
+  /* pwrite64 below will not do the right thing in O_APPEND mode.  */
+  {
+    int flags = __fcntl (fd, F_GETFL, 0);
+    if (flags < 0 || (flags & O_APPEND) != 0)
+      return EBADF;
+  }
+
+  /* We have to make sure that this is really a regular file.  */
   if (__fxstat64 (_STAT_VER, fd, &st) != 0)
     return EBADF;
   if (S_ISFIFO (st.st_mode))
@@ -47,6 +57,8 @@ __posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len)
 
   if (len == 0)
     {
+      /* This is racy, but there is no good way to satisfy a
+	 zero-length allocation request.  */
       if (st.st_size < offset)
 	{
 	  int ret = __ftruncate64 (fd, offset);
@@ -58,19 +70,36 @@ __posix_fallocate64_l64 (int fd, __off64_t offset, __off64_t len)
       return 0;
     }
 
-  /* We have to know the block size of the filesystem to get at least some
-     sort of performance.  */
-  if (__fstatfs64 (fd, &f) != 0)
-    return errno;
-
-  /* Try to play safe.  */
-  if (f.f_bsize == 0)
-    f.f_bsize = 512;
-
-  /* Write something to every block.  */
-  for (offset += (len - 1) % f.f_bsize; len > 0; offset += f.f_bsize)
+  /* Minimize data transfer for network file systems, by issuing
+     single-byte write requests spaced by the file system block size.
+     (Most local file systems have fallocate support, so this fallback
+     code is not used there.)  */
+
+  unsigned increment;
+  {
+    struct statfs64 f;
+
+    if (__fstatfs64 (fd, &f) != 0)
+      return errno;
+    if (f.f_bsize == 0)
+      increment = 512;
+    else if (f.f_bsize < 4096)
+      increment = f.f_bsize;
+    else
+      /* NFS clients do not propagate the block size of the underlying
+	 storage and may report a much larger value which would still
+	 leave holes after the loop below, so we cap the increment at
+	 4096.  */
+      increment = 4096;
+  }
+
+  /* Write a null byte to every block.  This is racy; we currently
+     lack a better option.  Compare-and-swap against a file mapping
+     might address local races, but requires interposition of a signal
+     handler to catch SIGBUS.  */
+  for (offset += (len - 1) % increment; len > 0; offset += increment)
     {
-      len -= f.f_bsize;
+      len -= increment;
 
       if (offset < st.st_size)
 	{
diff --git a/sysdeps/posix/pread.c b/sysdeps/posix/pread.c
index 7f5cfa12ef..84bce25288 100644
--- a/sysdeps/posix/pread.c
+++ b/sysdeps/posix/pread.c
@@ -1,6 +1,6 @@
 /* Read block from given position in file without changing file pointer.
    POSIX version.
-   Copyright (C) 1997-2014 Free Software Foundation, Inc.
+   Copyright (C) 1997-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/sysdeps/posix/pread64.c b/sysdeps/posix/pread64.c
index 36b53f7b32..c17e97676e 100644
--- a/sysdeps/posix/pread64.c
+++ b/sysdeps/posix/pread64.c
@@ -1,6 +1,6 @@
 /* Read block from given position in file without changing file pointer.
    POSIX version.
-   Copyright (C) 1997-2014 Free Software Foundation, Inc.
+   Copyright (C) 1997-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/sysdeps/posix/preadv.c b/sysdeps/posix/preadv.c
index b1fd060b30..4540bd1e2d 100644
--- a/sysdeps/posix/preadv.c
+++ b/sysdeps/posix/preadv.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2009-2014 Free Software Foundation, Inc.
+/* Copyright (C) 2009-2015 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
diff --git a/sysdeps/posix/profil.c b/sysdeps/posix/profil.c
index 696c7a6cad..5210470d5c 100644
--- a/sysdeps/posix/profil.c
+++ b/sysdeps/posix/profil.c
@@ -1,5 +1,5 @@
 /* Low-level statistical profiling support function.  Mostly POSIX.1 version.
-   Copyright (C) 1996-2014 Free Software Foundation, Inc.
+   Copyright (C) 1996-2015 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
@@ -48,7 +48,7 @@ profil_count (void *pc)
     ++samples[i];
 }
 
-/* Get the machine-dependent definition of `profil_counter', the signal
+/* Get the machine-dependent definition of `__profil_counter', the signal
    handler for SIGPROF.  It calls `profil_count' (above) with the PC of the
    interrupted code.  */
 #include "profil-counter.h"
@@ -64,7 +64,7 @@ __profil (u_short *sample_buffer, size_t size, size_t offset, u_int scale)
 {
   struct sigaction act;
   struct itimerval timer;
-#ifndef IS_IN_rtld
+#if !IS_IN (rtld)
   static struct sigaction oact;
   static struct itimerval otimer;
 # define oact_ptr &oact
@@ -103,7 +103,7 @@ __profil (u_short *sample_buffer, size_t size, size_t offset, u_int scale)
   pc_offset = offset;
   pc_scale = scale;
 
-  act.sa_handler = (sighandler_t) &profil_counter;
+  act.sa_handler = (sighandler_t) &__profil_counter;
   act.sa_flags = SA_RESTART;
   __sigfillset (&act.sa_mask);
   if (__sigaction (SIGPROF, &act, oact_ptr) < 0)
diff --git a/sysdeps/posix/pwrite.c b/sysdeps/posix/pwrite.c
index 4a9fe1071c..143ba86146 100644
--- a/sysdeps/posix/pwrite.c
+++ b/sysdeps/posix/pwrite.c
@@ -1,6 +1,6 @@
 /* Write block to given position in file without changing file pointer.
    POSIX version.
-   Copyright (C) 1997-2014 Free Software Foundation, Inc.
+   Copyright (C) 1997-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/sysdeps/posix/pwrite64.c b/sysdeps/posix/pwrite64.c
index 18c4e55983..f501d5175e 100644
--- a/sysdeps/posix/pwrite64.c
+++ b/sysdeps/posix/pwrite64.c
@@ -1,6 +1,6 @@
 /* Write block to given position in file without changing file pointer.
    POSIX version.
-   Copyright (C) 1997-2014 Free Software Foundation, Inc.
+   Copyright (C) 1997-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
diff --git a/sysdeps/posix/pwritev.c b/sysdeps/posix/pwritev.c
index 97b7523137..772e3cb105 100644
--- a/sysdeps/posix/pwritev.c
+++ b/sysdeps/posix/pwritev.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2009-2014 Free Software Foundation, Inc.
+/* Copyright (C) 2009-2015 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
diff --git a/sysdeps/posix/raise.c b/sysdeps/posix/raise.c
index f2424f9c4a..008f87b556 100644
--- a/sysdeps/posix/raise.c
+++ b/sysdeps/posix/raise.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/readdir.c b/sysdeps/posix/readdir.c
index 7bb956a916..dbd552b902 100644
--- a/sysdeps/posix/readdir.c
+++ b/sysdeps/posix/readdir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -40,7 +40,7 @@ __READDIR (DIR *dirp)
   DIRENT_TYPE *dp;
   int saved_errno = errno;
 
-#ifndef NOT_IN_libc
+#if IS_IN (libc)
   __libc_lock_lock (dirp->lock);
 #endif
 
@@ -110,7 +110,7 @@ __READDIR (DIR *dirp)
       /* Skip deleted files.  */
     } while (dp->d_ino == 0);
 
-#ifndef NOT_IN_libc
+#if IS_IN (libc)
   __libc_lock_unlock (dirp->lock);
 #endif
 
diff --git a/sysdeps/posix/readdir_r.c b/sysdeps/posix/readdir_r.c
index ee88c9b46d..0dd87651c3 100644
--- a/sysdeps/posix/readdir_r.c
+++ b/sysdeps/posix/readdir_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/readv.c b/sysdeps/posix/readv.c
index b7a8e1e7c2..2d11d191b5 100644
--- a/sysdeps/posix/readv.c
+++ b/sysdeps/posix/readv.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -37,7 +37,7 @@ ifree (char **ptrp)
    Operates just like 'read' (see <unistd.h>) except that data are
    put in VECTOR instead of a contiguous buffer.  */
 ssize_t
-__libc_readv (int fd, const struct iovec *vector, int count)
+__readv (int fd, const struct iovec *vector, int count)
 {
   /* Find the total number of bytes to be read.  */
   size_t bytes = 0;
@@ -88,7 +88,4 @@ __libc_readv (int fd, const struct iovec *vector, int count)
 
   return bytes_read;
 }
-#ifndef __libc_readv
-strong_alias (__libc_readv, __readv)
-weak_alias (__libc_readv, readv)
-#endif
+weak_alias (__readv, readv)
diff --git a/sysdeps/posix/remove.c b/sysdeps/posix/remove.c
index dc7f78d86f..4ae3cfb4ba 100644
--- a/sysdeps/posix/remove.c
+++ b/sysdeps/posix/remove.c
@@ -1,5 +1,5 @@
 /* ANSI C `remove' function to delete a file or directory.  POSIX.1 version.
-   Copyright (C) 1995-2014 Free Software Foundation, Inc.
+   Copyright (C) 1995-2015 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
diff --git a/sysdeps/posix/rename.c b/sysdeps/posix/rename.c
index a50fc387be..0f13abbf5d 100644
--- a/sysdeps/posix/rename.c
+++ b/sysdeps/posix/rename.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/rewinddir.c b/sysdeps/posix/rewinddir.c
index 5a4a7154ab..5ac4897f7d 100644
--- a/sysdeps/posix/rewinddir.c
+++ b/sysdeps/posix/rewinddir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -23,10 +23,10 @@
 
 /* Rewind DIRP to the beginning of the directory.  */
 void
-rewinddir (dirp)
+__rewinddir (dirp)
      DIR *dirp;
 {
-#ifndef NOT_IN_libc
+#if IS_IN (libc)
   __libc_lock_lock (dirp->lock);
 #endif
   (void) __lseek (dirp->fd, (off_t) 0, SEEK_SET);
@@ -34,8 +34,9 @@ rewinddir (dirp)
   dirp->offset = 0;
   dirp->size = 0;
   dirp->errcode = 0;
-#ifndef NOT_IN_libc
+#if IS_IN (libc)
   __libc_lock_unlock (dirp->lock);
 #endif
 }
-libc_hidden_def (rewinddir)
+libc_hidden_def (__rewinddir)
+weak_alias (__rewinddir, rewinddir)
diff --git a/sysdeps/posix/seekdir.c b/sysdeps/posix/seekdir.c
index a143f69895..f15a57cf70 100644
--- a/sysdeps/posix/seekdir.c
+++ b/sysdeps/posix/seekdir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/shm-directory.c b/sysdeps/posix/shm-directory.c
new file mode 100644
index 0000000000..2c0f918d9f
--- /dev/null
+++ b/sysdeps/posix/shm-directory.c
@@ -0,0 +1,38 @@
+/* Determine directory for shm/sem files.  Generic POSIX version.
+   Copyright (C) 2014-2015 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/>.  */
+
+#include <shm-directory.h>
+#include <unistd.h>
+
+#if _POSIX_MAPPED_FILES
+
+# include <paths.h>
+
+# define SHMDIR (_PATH_DEV "shm/")
+
+const char *
+__shm_directory (size_t *len)
+{
+  *len = sizeof SHMDIR - 1;
+  return SHMDIR;
+}
+# if IS_IN (libpthread)
+hidden_def (__shm_directory)
+# endif
+
+#endif
diff --git a/sysdeps/posix/shm-directory.h b/sysdeps/posix/shm-directory.h
new file mode 100644
index 0000000000..d209425c77
--- /dev/null
+++ b/sysdeps/posix/shm-directory.h
@@ -0,0 +1,66 @@
+/* Header for directory for shm/sem files.
+   Copyright (C) 2014-2015 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 _SHM_DIRECTORY_H
+
+#include <errno.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+extern const char *__shm_directory (size_t *len);
+
+/* This defines local variables SHM_DIR and SHM_DIRLEN, giving the
+   directory prefix (with trailing slash) and length (not including '\0'
+   terminator) of the directory used for shm files.  If that cannot be
+   determined, it sets errno to ENOSYS and returns RETVAL_FOR_INVALID.
+
+   This uses the local variable NAME as an lvalue, and increments it past
+   any leading slashes.  It then defines the local variable NAMELEN, giving
+   strlen (NAME) + 1.  If NAME is invalid, it sets errno to
+   ERRNO_FOR_INVALID and returns RETVAL_FOR_INVALID.  Finally, it defines
+   the local variable SHM_NAME, giving the absolute file name of the shm
+   file corresponding to NAME.  PREFIX is a string constant used as a
+   prefix on NAME.  */
+
+#define SHM_GET_NAME(errno_for_invalid, retval_for_invalid, prefix)           \
+  size_t shm_dirlen;							      \
+  const char *shm_dir = __shm_directory (&shm_dirlen);			      \
+  /* If we don't know what directory to use, there is nothing we can do.  */  \
+  if (__glibc_unlikely (shm_dir == NULL))				      \
+    {									      \
+      __set_errno (ENOSYS);						      \
+      return retval_for_invalid;					      \
+    }									      \
+  /* Construct the filename.  */					      \
+  while (name[0] == '/')						      \
+    ++name;								      \
+  size_t namelen = strlen (name) + 1;					      \
+  /* Validate the filename.  */						      \
+  if (namelen == 1 || namelen >= NAME_MAX || strchr (name, '/') != NULL)      \
+    {									      \
+      __set_errno (errno_for_invalid);					      \
+      return retval_for_invalid;					      \
+    }									      \
+  char *shm_name = __alloca (shm_dirlen + sizeof prefix - 1 + namelen);	      \
+  __mempcpy (__mempcpy (__mempcpy (shm_name, shm_dir, shm_dirlen),	      \
+                        prefix, sizeof prefix - 1),			      \
+             name, namelen)
+
+#endif	/* shm-directory.h */
diff --git a/sysdeps/posix/shm_open.c b/sysdeps/posix/shm_open.c
index 456b3d8b8f..3a5f07bbac 100644
--- a/sysdeps/posix/shm_open.c
+++ b/sysdeps/posix/shm_open.c
@@ -1,5 +1,5 @@
 /* shm_open -- open a POSIX shared memory object.  Generic POSIX file version.
-   Copyright (C) 2001-2014 Free Software Foundation, Inc.
+   Copyright (C) 2001-2015 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
@@ -19,50 +19,41 @@
 #include <unistd.h>
 
 #if ! _POSIX_MAPPED_FILES
-#include <rt/shm_open.c>
+
+# include <rt/shm_open.c>
 
 #else
 
-#include <errno.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <string.h>
-#include <stdlib.h>
-#include <paths.h>
+# include <fcntl.h>
+# include <shm-directory.h>
 
-#define SHMDIR	(_PATH_DEV "shm/")
 
 /* Open shared memory object.  */
 int
 shm_open (const char *name, int oflag, mode_t mode)
 {
-  size_t namelen;
-  char *fname;
-  int fd;
-
-  /* Construct the filename.  */
-  while (name[0] == '/')
-    ++name;
-
-  if (name[0] == '\0')
-    {
-      /* The name "/" is not supported.  */
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  namelen = strlen (name);
-  fname = (char *) __alloca (sizeof SHMDIR - 1 + namelen + 1);
-  __mempcpy (__mempcpy (fname, SHMDIR, sizeof SHMDIR - 1),
-	     name, namelen + 1);
-
-  fd = open (name, oflag, mode);
+  SHM_GET_NAME (EINVAL, -1, "");
+
+# ifdef O_NOFOLLOW
+  oflag |= O_NOFOLLOW;
+# endif
+# ifdef O_CLOEXEC
+  oflag |= O_CLOEXEC;
+# endif
+  int fd = open (shm_name, oflag, mode);
+  if (fd == -1 && __glibc_unlikely (errno == EISDIR))
+    /* It might be better to fold this error with EINVAL since
+       directory names are just another example for unsuitable shared
+       object names and the standard does not mention EISDIR.  */
+    __set_errno (EINVAL);
+
+# ifndef O_CLOEXEC
   if (fd != -1)
     {
       /* We got a descriptor.  Now set the FD_CLOEXEC bit.  */
       int flags = fcntl (fd, F_GETFD, 0);
 
-      if (__builtin_expect (flags, 0) != -1)
+      if (__glibc_likely (flags != -1))
 	{
 	  flags |= FD_CLOEXEC;
 	  flags = fcntl (fd, F_SETFD, flags);
@@ -77,8 +68,9 @@ shm_open (const char *name, int oflag, mode_t mode)
 	  __set_errno (save_errno);
 	}
     }
+# endif
 
   return fd;
 }
 
-#endif
+#endif  /* _POSIX_MAPPED_FILES */
diff --git a/sysdeps/posix/shm_unlink.c b/sysdeps/posix/shm_unlink.c
index dc94e1692b..fae8d99525 100644
--- a/sysdeps/posix/shm_unlink.c
+++ b/sysdeps/posix/shm_unlink.c
@@ -1,5 +1,5 @@
 /* shm_unlink -- remove a POSIX shared memory object.  Generic POSIX version.
-   Copyright (C) 2001-2014 Free Software Foundation, Inc.
+   Copyright (C) 2001-2015 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
@@ -24,37 +24,20 @@
 #else
 
 #include <errno.h>
-#include <sys/mman.h>
 #include <string.h>
-#include <stdlib.h>
-#include <paths.h>
+#include "shm-directory.h"
 
-#define SHMDIR	(_PATH_DEV "shm/")
 
 /* Remove shared memory object.  */
 int
 shm_unlink (const char *name)
 {
-  size_t namelen;
-  char *fname;
-
-  /* Construct the filename.  */
-  while (name[0] == '/')
-    ++name;
-
-  if (name[0] == '\0')
-    {
-      /* The name "/" is not supported.  */
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  namelen = strlen (name);
-  fname = (char *) __alloca (sizeof SHMDIR - 1 + namelen + 1);
-  __mempcpy (__mempcpy (fname, SHMDIR, sizeof SHMDIR - 1),
-	     name, namelen + 1);
-
-  return unlink (name);
+  SHM_GET_NAME (ENOENT, -1, "");
+
+  int result = unlink (shm_name);
+  if (result < 0 && errno == EPERM)
+    __set_errno (EACCES);
+  return result;
 }
 
 #endif
diff --git a/sysdeps/posix/sigblock.c b/sysdeps/posix/sigblock.c
index 5d0086223f..3392fbf3ea 100644
--- a/sysdeps/posix/sigblock.c
+++ b/sysdeps/posix/sigblock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/sigignore.c b/sysdeps/posix/sigignore.c
index 4e232cc40f..0c8c10dbc5 100644
--- a/sysdeps/posix/sigignore.c
+++ b/sysdeps/posix/sigignore.c
@@ -1,5 +1,5 @@
 /* Set the disposition of SIG to SIG_IGN.
-   Copyright (C) 1998-2014 Free Software Foundation, Inc.
+   Copyright (C) 1998-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
diff --git a/sysdeps/posix/sigintr.c b/sysdeps/posix/sigintr.c
index 200836438e..28c9052d47 100644
--- a/sysdeps/posix/sigintr.c
+++ b/sysdeps/posix/sigintr.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2015 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
diff --git a/sysdeps/posix/signal.c b/sysdeps/posix/signal.c
index 934fffb50b..0c588238f3 100644
--- a/sysdeps/posix/signal.c
+++ b/sysdeps/posix/signal.c
@@ -1,5 +1,5 @@
 /* BSD-like signal function.
-   Copyright (C) 1991-2014 Free Software Foundation, Inc.
+   Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/sigpause.c b/sysdeps/posix/sigpause.c
index 3dcf86c43c..662640dc26 100644
--- a/sysdeps/posix/sigpause.c
+++ b/sysdeps/posix/sigpause.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/sigset.c b/sysdeps/posix/sigset.c
index 8542e28c21..35c9fcd607 100644
--- a/sysdeps/posix/sigset.c
+++ b/sysdeps/posix/sigset.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2015 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
diff --git a/sysdeps/posix/sigsetmask.c b/sysdeps/posix/sigsetmask.c
index a36e75fb0e..94af0baf2c 100644
--- a/sysdeps/posix/sigsetmask.c
+++ b/sysdeps/posix/sigsetmask.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/sigsuspend.c b/sysdeps/posix/sigsuspend.c
index 3e0374c7a7..1ac689f6fb 100644
--- a/sysdeps/posix/sigsuspend.c
+++ b/sysdeps/posix/sigsuspend.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/sigvec.c b/sysdeps/posix/sigvec.c
deleted file mode 100644
index 83ba75546f..0000000000
--- a/sysdeps/posix/sigvec.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/* Copyright (C) 1991-2014 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/>.  */
-
-#include <signal.h>
-#include <errno.h>
-#include <stddef.h>
-
-/* Include macros to convert between `sigset_t' and old-style mask. */
-#include <sigset-cvt-mask.h>
-
-#ifndef SA_RESETHAND
-/* When sigaction lacks the extension bit for it,
-   we use a wrapper handler to support SV_RESETHAND.  */
-struct sigvec_wrapper_data
-{
-  __sighandler_t sw_handler;
-  unsigned int sw_mask;
-};
-
-static void sigvec_wrapper_handler (int sig) __THROW;
-
-static struct sigvec_wrapper_data sigvec_wrapper_data[NSIG];
-#endif
-
-
-/* If VEC is non-NULL, set the handler for SIG to the `sv_handler' member
-   of VEC.  The signals in `sv_mask' will be blocked while the handler runs.
-   If the SV_RESETHAND bit is set in `sv_flags', the handler for SIG will be
-   reset to SIG_DFL before `sv_handler' is entered.  If OVEC is non-NULL,
-   it is filled in with the old information for SIG.  */
-int
-__sigvec (sig, vec, ovec)
-     int sig;
-     const struct sigvec *vec;
-     struct sigvec *ovec;
-{
-  struct sigaction old;
-
-#ifndef SA_RESETHAND
-  if (vec == NULL || !(vec->sv_flags & SV_RESETHAND))
-#endif
-    {
-      struct sigaction new, *n;
-
-      if (vec == NULL)
-	n = NULL;
-      else
-	{
-	  __sighandler_t handler;
-	  unsigned int mask;
-	  unsigned int sv_flags;
-	  unsigned int sa_flags;
-
-	  handler = vec->sv_handler;
-	  mask = vec->sv_mask;
-	  sv_flags = vec->sv_flags;
-	  sa_flags = 0;
-	  if (sv_flags & SV_ONSTACK)
-	    {
-#ifdef SA_ONSTACK
-	      sa_flags |= SA_ONSTACK;
-#else
-	      __set_errno (ENOSYS);
-	      return -1;
-#endif
-	    }
-#ifdef SA_RESTART
-	  if (!(sv_flags & SV_INTERRUPT))
-	    sa_flags |= SA_RESTART;
-#endif
-#ifdef SA_RESETHAND
-	  if (sv_flags & SV_RESETHAND)
-	    sa_flags |= SA_RESETHAND;
-#endif
-	  n = &new;
-	  new.sa_handler = handler;
-	  if (sigset_set_old_mask (&new.sa_mask, mask) < 0)
-	    return -1;
-	  new.sa_flags = sa_flags;
-	}
-
-      if (__sigaction (sig, n, &old) < 0)
-	return -1;
-    }
-#ifndef SA_RESETHAND
-  else
-    {
-      __sighandler_t handler;
-      unsigned int mask;
-      struct sigvec_wrapper_data *data;
-      struct sigaction wrapper;
-
-      handler = vec->sv_handler;
-      mask = (unsigned int)vec->sv_mask;
-      data = &sigvec_wrapper_data[sig];
-      wrapper.sa_handler = sigvec_wrapper_handler;
-      /* FIXME: should we set wrapper.sa_mask, wrapper.sa_flags??  */
-      data->sw_handler = handler;
-      data->sw_mask = mask;
-
-      if (__sigaction (sig, &wrapper, &old) < 0)
-	return -1;
-    }
-#endif
-
-  if (ovec != NULL)
-    {
-      __sighandler_t handler;
-      unsigned int sv_flags;
-      unsigned int sa_flags;
-      unsigned int mask;
-
-      handler = old.sa_handler;
-      sv_flags = 0;
-      sa_flags = old.sa_flags;
-#ifndef SA_RESETHAND
-      if (handler == sigvec_wrapper_handler)
-	{
-	  handler = sigvec_wrapper_data[sig].sw_handler;
-	  /* should we use data->sw_mask?? */
-	  sv_flags |= SV_RESETHAND;
-	}
-#else
-     if (sa_flags & SA_RESETHAND)
-	sv_flags |= SV_RESETHAND;
-#endif
-      mask = sigset_get_old_mask (&old.sa_mask);
-#ifdef SA_ONSTACK
-     if (sa_flags & SA_ONSTACK)
-	sv_flags |= SV_ONSTACK;
-#endif
-#ifdef SA_RESTART
-     if (!(sa_flags & SA_RESTART))
-#endif
-	sv_flags |= SV_INTERRUPT;
-      ovec->sv_handler = handler;
-      ovec->sv_mask = (int)mask;
-      ovec->sv_flags = (int)sv_flags;
-    }
-
-  return 0;
-}
-
-weak_alias (__sigvec, sigvec)
-
-#ifndef SA_RESETHAND
-static void
-sigvec_wrapper_handler (sig)
-     int sig;
-{
-  struct sigvec_wrapper_data *data;
-  struct sigaction act;
-  int save;
-  __sighandler_t handler;
-
-  data = &sigvec_wrapper_data[sig];
-  act.sa_handler = SIG_DFL;
-  act.sa_flags = 0;
-  sigset_set_old_mask (&act.sa_mask, data->sw_mask);
-  handler = data->sw_handler;
-  save = errno;
-  (void) __sigaction (sig, &act, (struct sigaction *) NULL);
-  __set_errno (save);
-
-  (*handler) (sig);
-}
-#endif
diff --git a/sysdeps/posix/sigwait.c b/sysdeps/posix/sigwait.c
index 313eb18250..8dc550bfb7 100644
--- a/sysdeps/posix/sigwait.c
+++ b/sysdeps/posix/sigwait.c
@@ -1,5 +1,5 @@
 /* Implementation of sigwait function from POSIX.1c.
-   Copyright (C) 1996-2014 Free Software Foundation, Inc.
+   Copyright (C) 1996-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
diff --git a/sysdeps/posix/sleep.c b/sysdeps/posix/sleep.c
index 4a72c275b3..75d9c18cd3 100644
--- a/sysdeps/posix/sleep.c
+++ b/sysdeps/posix/sleep.c
@@ -1,5 +1,5 @@
 /* Sleep for a given number of seconds.  POSIX.1 version.
-   Copyright (C) 1991-2014 Free Software Foundation, Inc.
+   Copyright (C) 1991-2015 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
@@ -33,7 +33,7 @@ unsigned int
 __sleep (unsigned int seconds)
 {
   /* This is not necessary but some buggy programs depend on it.  */
-  if (__builtin_expect (seconds == 0, 0))
+  if (__glibc_unlikely (seconds == 0))
     {
 #ifdef CANCELLATION_P
       CANCELLATION_P (THREAD_SELF);
diff --git a/sysdeps/posix/spawni.c b/sysdeps/posix/spawni.c
index 58c9e5d597..eee9331ecf 100644
--- a/sysdeps/posix/spawni.c
+++ b/sysdeps/posix/spawni.c
@@ -1,5 +1,5 @@
 /* Guts of POSIX spawn interface.  Generic POSIX.1 version.
-   Copyright (C) 2000-2014 Free Software Foundation, Inc.
+   Copyright (C) 2000-2015 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
@@ -188,7 +188,7 @@ __spawni (pid_t *pid, const char *file,
 		{
 		  if (! have_fdlimit)
 		    {
-		      getrlimit64 (RLIMIT_NOFILE, &fdlimit);
+		      __getrlimit64 (RLIMIT_NOFILE, &fdlimit);
 		      have_fdlimit = true;
 		    }
 
diff --git a/sysdeps/posix/sprofil.c b/sysdeps/posix/sprofil.c
index 0e19d16c23..abd59d5d0a 100644
--- a/sysdeps/posix/sprofil.c
+++ b/sysdeps/posix/sprofil.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2014 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2015 Free Software Foundation, Inc.
    Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
    This file is part of the GNU C Library.
 
@@ -175,17 +175,17 @@ profil_count_uint (void *pcp)
   profil_count (pcp, 1);
 }
 
-/* Get the machine-dependent definition of `profil_counter', the signal
+/* Get the machine-dependent definition of `__profil_counter', the signal
    handler for SIGPROF.  It calls `profil_count' (above) with the PC of the
    interrupted code.  */
-#define profil_counter		profil_counter_ushort
+#define __profil_counter	__profil_counter_ushort
 #define profil_count(pc)	profil_count (pc, 0)
 #include <profil-counter.h>
 
-#undef profil_counter
+#undef __profil_counter
 #undef profil_count
 
-#define profil_counter		profil_counter_uint
+#define __profil_counter	__profil_counter_uint
 #define profil_count(pc)	profil_count (pc, 1)
 #include <profil-counter.h>
 
@@ -334,9 +334,9 @@ __sprofil (struct prof *profp, int profcnt, struct timeval *tvp,
 
   /* Install SIGPROF handler.  */
   if (flags & PROF_UINT)
-    act.sa_handler = (sighandler_t) &profil_counter_uint;
+    act.sa_handler = (sighandler_t) &__profil_counter_uint;
   else
-    act.sa_handler = (sighandler_t) &profil_counter_ushort;
+    act.sa_handler = (sighandler_t) &__profil_counter_ushort;
   act.sa_flags = SA_RESTART;
   __sigfillset (&act.sa_mask);
   if (__sigaction (SIGPROF, &act, &prof_info.saved_action) < 0)
diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index 26136bd9c9..502fe94909 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -31,6 +31,8 @@
 #include <sys/types.h>
 #include <regex.h>
 
+#define NEED_SPEC_ARRAY 0
+#include <posix-conf-vars.h>
 
 #define NEED_CHECK_SPEC \
   (!defined _XBS5_ILP32_OFF32 || !defined _XBS5_ILP32_OFFBIG \
@@ -95,112 +97,112 @@ __sysconf (name)
       return MAX (__tzname_max (), _POSIX_TZNAME_MAX);
 
     case _SC_JOB_CONTROL:
-#if _POSIX_JOB_CONTROL > 0
+#if CONF_IS_DEFINED_SET (_POSIX_JOB_CONTROL)
       return _POSIX_JOB_CONTROL;
 #else
       return -1;
 #endif
 
     case _SC_SAVED_IDS:
-#if _POSIX_SAVED_IDS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SAVED_IDS)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_REALTIME_SIGNALS:
-#if _POSIX_REALTIME_SIGNALS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_REALTIME_SIGNALS)
       return _POSIX_REALTIME_SIGNALS;
 #else
       return -1;
 #endif
 
     case _SC_PRIORITY_SCHEDULING:
-#if _POSIX_PRIORITY_SCHEDULING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PRIORITY_SCHEDULING)
       return _POSIX_PRIORITY_SCHEDULING;
 #else
       return -1;
 #endif
 
     case _SC_TIMERS:
-#if _POSIX_TIMERS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TIMERS)
       return _POSIX_TIMERS;
 #else
       return -1;
 #endif
 
     case _SC_ASYNCHRONOUS_IO:
-#if _POSIX_ASYNCHRONOUS_IO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_ASYNCHRONOUS_IO)
       return _POSIX_ASYNCHRONOUS_IO;
 #else
       return -1;
 #endif
 
     case _SC_PRIORITIZED_IO:
-#if _POSIX_PRIORITIZED_IO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PRIORITIZED_IO)
       return _POSIX_PRIORITIZED_IO;
 #else
       return -1;
 #endif
 
     case _SC_SYNCHRONIZED_IO:
-#if _POSIX_SYNCHRONIZED_IO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SYNCHRONIZED_IO)
       return _POSIX_SYNCHRONIZED_IO;
 #else
       return -1;
 #endif
 
     case _SC_FSYNC:
-#if _POSIX_FSYNC > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FSYNC)
       return _POSIX_FSYNC;
 #else
       return -1;
 #endif
 
     case _SC_MAPPED_FILES:
-#if _POSIX_MAPPED_FILES > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MAPPED_FILES)
       return _POSIX_MAPPED_FILES;
 #else
       return -1;
 #endif
 
     case _SC_MEMLOCK:
-#if _POSIX_MEMLOCK > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MEMLOCK)
       return _POSIX_MEMLOCK;
 #else
       return -1;
 #endif
 
     case _SC_MEMLOCK_RANGE:
-#if _POSIX_MEMLOCK_RANGE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MEMLOCK_RANGE)
       return _POSIX_MEMLOCK_RANGE;
 #else
       return -1;
 #endif
 
     case _SC_MEMORY_PROTECTION:
-#if _POSIX_MEMORY_PROTECTION > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MEMORY_PROTECTION)
       return _POSIX_MEMORY_PROTECTION;
 #else
       return -1;
 #endif
 
     case _SC_MESSAGE_PASSING:
-#if _POSIX_MESSAGE_PASSING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MESSAGE_PASSING)
       return _POSIX_MESSAGE_PASSING;
 #else
       return -1;
 #endif
 
     case _SC_SEMAPHORES:
-#if _POSIX_SEMAPHORES > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SEMAPHORES)
       return _POSIX_SEMAPHORES;
 #else
       return -1;
 #endif
 
     case _SC_SHARED_MEMORY_OBJECTS:
-#if _POSIX_SHARED_MEMORY_OBJECTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SHARED_MEMORY_OBJECTS)
       return _POSIX_SHARED_MEMORY_OBJECTS;
 #else
       return -1;
@@ -353,49 +355,49 @@ __sysconf (name)
 #endif
 
     case _SC_PII:
-#if _POSIX_PII > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_XTI:
-#if _POSIX_PII_XTI > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_XTI)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_SOCKET:
-#if _POSIX_PII_SOCKET > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_SOCKET)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_INTERNET:
-#if _POSIX_PII_INTERNET > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_INTERNET)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI:
-#if _POSIX_PII_OSI > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_OSI)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_POLL:
-#if _POSIX_POLL > 0
+#if CONF_IS_DEFINED_SET (_POSIX_POLL)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_SELECT:
-#if _POSIX_SELECT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SELECT)
       return 1;
 #else
       return -1;
@@ -410,35 +412,35 @@ __sysconf (name)
 #endif
 
     case _SC_PII_INTERNET_STREAM:
-#if _POSIX_PII_INTERNET_STREAM > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_INTERNET_STREAM)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_INTERNET_DGRAM:
-#if _POSIX_PII_INTERNET_DGRAM > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_INTERNET_DGRAM)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI_COTS:
-#if _POSIX_PII_OSI_COTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_OSI_COTS)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI_CLTS:
-#if _POSIX_PII_OSI_CLTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_OSI_CLTS)
       return 1;
 #else
       return -1;
 #endif
 
     case _SC_PII_OSI_M:
-#if _POSIX_PII_OSI_M > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PII_OSI_M)
       return 1;
 #else
       return -1;
@@ -519,14 +521,14 @@ __sysconf (name)
 
       /* POSIX 1003.1c (POSIX Threads).  */
     case _SC_THREADS:
-#if _POSIX_THREADS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREADS)
       return _POSIX_THREADS;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_SAFE_FUNCTIONS:
-#if _POSIX_THREAD_SAFE_FUNCTIONS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_SAFE_FUNCTIONS)
       return _POSIX_THREAD_SAFE_FUNCTIONS;
 #else
       return -1;
@@ -553,7 +555,7 @@ __sysconf (name)
 #endif
 
     case _SC_THREAD_DESTRUCTOR_ITERATIONS:
-#if _POSIX_THREAD_DESTRUCTOR_ITERATIONS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_DESTRUCTOR_ITERATIONS)
       return _POSIX_THREAD_DESTRUCTOR_ITERATIONS;
 #else
       return -1;
@@ -581,42 +583,42 @@ __sysconf (name)
 #endif
 
     case _SC_THREAD_ATTR_STACKADDR:
-#if _POSIX_THREAD_ATTR_STACKADDR > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_ATTR_STACKADDR)
       return _POSIX_THREAD_ATTR_STACKADDR;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_ATTR_STACKSIZE:
-#if _POSIX_THREAD_ATTR_STACKSIZE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_ATTR_STACKSIZE)
       return _POSIX_THREAD_ATTR_STACKSIZE;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PRIORITY_SCHEDULING:
-#if _POSIX_THREAD_PRIORITY_SCHEDULING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_PRIORITY_SCHEDULING)
       return _POSIX_THREAD_PRIORITY_SCHEDULING;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PRIO_INHERIT:
-#if _POSIX_THREAD_PRIO_INHERIT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_PRIO_INHERIT)
       return _POSIX_THREAD_PRIO_INHERIT;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PRIO_PROTECT:
-#if _POSIX_THREAD_PRIO_PROTECT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_PRIO_PROTECT)
       return _POSIX_THREAD_PRIO_PROTECT;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_PROCESS_SHARED:
-#if _POSIX_THREAD_PROCESS_SHARED > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_PROCESS_SHARED)
       return _POSIX_THREAD_PROCESS_SHARED;
 #else
       return -1;
@@ -833,239 +835,237 @@ __sysconf (name)
 #endif
 
     case _SC_ADVISORY_INFO:
-#if _POSIX_ADVISORY_INFO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_ADVISORY_INFO)
       return _POSIX_ADVISORY_INFO;
 #else
       return -1;
 #endif
 
     case _SC_BARRIERS:
-#if _POSIX_BARRIERS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_BARRIERS)
       return _POSIX_BARRIERS;
 #else
       return -1;
 #endif
 
     case _SC_BASE:
-#if _POSIX_BASE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_BASE)
       return _POSIX_BASE;
 #else
       return -1;
 #endif
     case _SC_C_LANG_SUPPORT:
-#if _POSIX_C_LANG_SUPPORT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_C_LANG_SUPPORT)
       return _POSIX_C_LANG_SUPPORT;
 #else
       return -1;
 #endif
     case _SC_C_LANG_SUPPORT_R:
-#if _POSIX_C_LANG_SUPPORT_R > 0
+#if CONF_IS_DEFINED_SET (_POSIX_C_LANG_SUPPORT_R)
       return _POSIX_C_LANG_SUPPORT_R;
 #else
       return -1;
 #endif
 
     case _SC_CLOCK_SELECTION:
-#if _POSIX_CLOCK_SELECTION > 0
+#if CONF_IS_DEFINED_SET (_POSIX_CLOCK_SELECTION)
       return _POSIX_CLOCK_SELECTION;
 #else
       return -1;
 #endif
 
     case _SC_CPUTIME:
-#if _POSIX_CPUTIME > 0
+#if CONF_IS_DEFINED_SET (_POSIX_CPUTIME)
       return _POSIX_CPUTIME;
 #else
       return -1;
 #endif
 
     case _SC_DEVICE_IO:
-#if _POSIX_DEVICE_IO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_DEVICE_IO)
       return _POSIX_DEVICE_IO;
 #else
       return -1;
 #endif
     case _SC_DEVICE_SPECIFIC:
-#if _POSIX_DEVICE_SPCIFIC > 0
+#if CONF_IS_DEFINED_SET (_POSIX_DEVICE_SPECIFIC)
       return _POSIX_DEVICE_SPECIFIC;
 #else
       return -1;
 #endif
     case _SC_DEVICE_SPECIFIC_R:
-#if _POSIX_DEVICE_SPCIFIC_R > 0
+#if CONF_IS_DEFINED_SET (_POSIX_DEVICE_SPECIFIC_R)
       return _POSIX_DEVICE_SPECIFIC_R;
 #else
       return -1;
 #endif
 
     case _SC_FD_MGMT:
-#if _POSIX_FD_MGMT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FD_MGMT)
       return _POSIX_FD_MGMT;
 #else
       return -1;
 #endif
 
     case _SC_FIFO:
-#if _POSIX_FIFO > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FIFO)
       return _POSIX_FIFO;
 #else
       return -1;
 #endif
     case _SC_PIPE:
-#if _POSIX_PIPE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_PIPE)
       return _POSIX_PIPE;
 #else
       return -1;
 #endif
 
     case _SC_FILE_ATTRIBUTES:
-#if _POSIX_FILE_ATTRIBUTES > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FILE_ATTRIBUTES)
       return _POSIX_FILE_ATTRIBUTES;
 #else
       return -1;
 #endif
     case _SC_FILE_LOCKING:
-#if _POSIX_FILE_LOCKING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FILE_LOCKING)
       return _POSIX_FILE_LOCKING;
 #else
       return -1;
 #endif
     case _SC_FILE_SYSTEM:
-#if _POSIX_FILE_SYSTEM > 0
+#if CONF_IS_DEFINED_SET (_POSIX_FILE_SYSTEM)
       return _POSIX_FILE_SYSTEM;
 #else
       return -1;
 #endif
 
     case _SC_MONOTONIC_CLOCK:
-#if _POSIX_MONOTONIC_CLOCK
+#if CONF_IS_DEFINED_SET (_POSIX_MONOTONIC_CLOCK)
       return _POSIX_MONOTONIC_CLOCK;
 #else
       return -1;
 #endif
 
     case _SC_MULTI_PROCESS:
-#if _POSIX_MULTI_PROCESS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_MULTI_PROCESS)
       return _POSIX_MULTI_PROCESS;
 #else
       return -1;
 #endif
     case _SC_SINGLE_PROCESS:
-#if _POSIX_SINGLE_PROCESS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SINGLE_PROCESS)
       return _POSIX_SINGLE_PROCESS;
 #else
       return -1;
 #endif
 
     case _SC_NETWORKING:
-#if _POSIX_NETWORKING > 0
+#if CONF_IS_DEFINED_SET (_POSIX_NETWORKING)
       return _POSIX_NETWORKING;
 #else
       return -1;
 #endif
 
     case _SC_READER_WRITER_LOCKS:
-#if _POSIX_READER_WRITER_LOCKS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_READER_WRITER_LOCKS)
       return _POSIX_READER_WRITER_LOCKS;
 #else
       return -1;
 #endif
     case _SC_SPIN_LOCKS:
-#if _POSIX_SPIN_LOCKS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SPIN_LOCKS)
       return _POSIX_SPIN_LOCKS;
 #else
       return -1;
 #endif
 
     case _SC_REGEXP:
-#if _POSIX_REGEXP > 0
+#if CONF_IS_DEFINED_SET (_POSIX_REGEXP)
       return _POSIX_REGEXP;
 #else
       return -1;
 #endif
+    /* _REGEX_VERSION has been removed with IEEE Std 1003.1-2001/Cor 2-2004,
+       item XSH/TC2/D6/137.  */
     case _SC_REGEX_VERSION:
-#if _POSIX_REGEX_VERSION > 0
-      return _POSIX_REGEX_VERSION;
-#else
       return -1;
-#endif
 
     case _SC_SHELL:
-#if _POSIX_SHELL > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SHELL)
       return _POSIX_SHELL;
 #else
       return -1;
 #endif
 
     case _SC_SIGNALS:
-#ifdef _POSUX_SIGNALS
+#if CONF_IS_DEFINED (_POSIX_SIGNALS)
       return _POSIX_SIGNALS;
 #else
       return -1;
 #endif
 
     case _SC_SPAWN:
-#if _POSIX_SPAWN > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SPAWN)
       return _POSIX_SPAWN;
 #else
       return -1;
 #endif
 
     case _SC_SPORADIC_SERVER:
-#if _POSIX_SPORADIC_SERVER > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SPORADIC_SERVER)
       return _POSIX_SPORADIC_SERVER;
 #else
       return -1;
 #endif
     case _SC_THREAD_SPORADIC_SERVER:
-#if _POSIX_THREAD_SPORADIC_SERVER > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_SPORADIC_SERVER)
       return _POSIX_THREAD_SPORADIC_SERVER;
 #else
       return -1;
 #endif
 
     case _SC_SYSTEM_DATABASE:
-#if _POSIX_SYSTEM_DATABASE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SYSTEM_DATABASE)
       return _POSIX_SYSTEM_DATABASE;
 #else
       return -1;
 #endif
     case _SC_SYSTEM_DATABASE_R:
-#if _POSIX_SYSTEM_DATABASE_R > 0
+#if CONF_IS_DEFINED_SET (_POSIX_SYSTEM_DATABASE_R)
       return _POSIX_SYSTEM_DATABASE_R;
 #else
       return -1;
 #endif
 
     case _SC_THREAD_CPUTIME:
-#if _POSIX_THREAD_CPUTIME > 0
+#if CONF_IS_DEFINED_SET (_POSIX_THREAD_CPUTIME)
       return _POSIX_THREAD_CPUTIME;
 #else
       return -1;
 #endif
 
     case _SC_TIMEOUTS:
-#if _POSIX_TIMEOUTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TIMEOUTS)
       return _POSIX_TIMEOUTS;
 #else
       return -1;
 #endif
 
     case _SC_TYPED_MEMORY_OBJECTS:
-#if _POSIX_TYPED_MEMORY_OBJECTS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TYPED_MEMORY_OBJECTS)
       return _POSIX_TYPED_MEMORY_OBJECTS;
 #else
       return -1;
 #endif
 
     case _SC_USER_GROUPS:
-#if _POSIX_USER_GROUPS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_USER_GROUPS)
       return _POSIX_USER_GROUPS;
 #else
       return -1;
 #endif
     case _SC_USER_GROUPS_R:
-#if _POSIX_USER_GROUPS_R > 0
+#if CONF_IS_DEFINED_SET (_POSIX_USER_GROUPS_R)
       return _POSIX_USER_GROUPS_R;
 #else
       return -1;
@@ -1130,25 +1130,25 @@ __sysconf (name)
 #endif
 
     case _SC_TRACE:
-#if _POSIX_TRACE > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TRACE)
       return _POSIX_TRACE;
 #else
       return -1;
 #endif
     case _SC_TRACE_EVENT_FILTER:
-#if _POSIX_TRACE_EVENT_FILTER > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TRACE_EVENT_FILTER)
       return _POSIX_TRACE_EVENT_FILTER;
 #else
       return -1;
 #endif
     case _SC_TRACE_INHERIT:
-#if _POSIX_TRACE_INHERIT > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TRACE_INHERIT)
       return _POSIX_TRACE_INHERIT;
 #else
       return -1;
 #endif
     case _SC_TRACE_LOG:
-#if _POSIX_TRACE_LOG > 0
+#if CONF_IS_DEFINED_SET (_POSIX_TRACE_LOG)
       return _POSIX_TRACE_LOG;
 #else
       return -1;
@@ -1185,14 +1185,14 @@ __sysconf (name)
       return 0;
 
     case _SC_IPV6:
-#if _POSIX_IPV6 > 0
+#if CONF_IS_DEFINED_SET (_POSIX_IPV6)
       return _POSIX_IPV6;
 #else
       return -1;
 #endif
 
     case _SC_RAW_SOCKETS:
-#if _POSIX_RAW_SOCKETS > 0
+#if CONF_IS_DEFINED_SET (_POSIX_RAW_SOCKETS)
       return _POSIX_RAW_SOCKETS;
 #else
       return -1;
diff --git a/sysdeps/posix/system.c b/sysdeps/posix/system.c
index e8b921febb..95b91abec4 100644
--- a/sysdeps/posix/system.c
+++ b/sysdeps/posix/system.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/sysv_signal.c b/sysdeps/posix/sysv_signal.c
index d2c9f1b81d..434a3e3176 100644
--- a/sysdeps/posix/sysv_signal.c
+++ b/sysdeps/posix/sysv_signal.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/telldir.c b/sysdeps/posix/telldir.c
index ed978545fe..91daddb0a2 100644
--- a/sysdeps/posix/telldir.c
+++ b/sysdeps/posix/telldir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/tempname.c b/sysdeps/posix/tempname.c
index 1f86549df3..88dc0bf44a 100644
--- a/sysdeps/posix/tempname.c
+++ b/sysdeps/posix/tempname.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -15,8 +15,9 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#if HAVE_CONFIG_H
+#if !_LIBC
 # include <config.h>
+# include "tempname.h"
 #endif
 
 #include <sys/types.h>
@@ -39,81 +40,41 @@
 # define __GT_DIR	1
 # define __GT_NOCREATE	2
 #endif
-
-#if STDC_HEADERS || _LIBC
-# include <stddef.h>
-# include <stdlib.h>
-# include <string.h>
-#endif
-
-#if HAVE_FCNTL_H || _LIBC
-# include <fcntl.h>
-#endif
-
-#if HAVE_SYS_TIME_H || _LIBC
-# include <sys/time.h>
+#if !_LIBC && (GT_FILE != __GT_FILE || GT_DIR != __GT_DIR	\
+	       || GT_NOCREATE != __GT_NOCREATE)
+# error report this to bug-gnulib@gnu.org
 #endif
 
-#if HAVE_STDINT_H || _LIBC
-# include <stdint.h>
-#endif
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
 
-#if HAVE_UNISTD_H || _LIBC
-# include <unistd.h>
-#endif
+#include <fcntl.h>
+#include <sys/time.h>
+#include <stdint.h>
+#include <unistd.h>
 
 #include <sys/stat.h>
-#if STAT_MACROS_BROKEN
-# undef S_ISDIR
-#endif
-#if !defined S_ISDIR && defined S_IFDIR
-# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
-#endif
-#if !S_IRUSR && S_IREAD
-# define S_IRUSR S_IREAD
-#endif
-#if !S_IRUSR
-# define S_IRUSR 00400
-#endif
-#if !S_IWUSR && S_IWRITE
-# define S_IWUSR S_IWRITE
-#endif
-#if !S_IWUSR
-# define S_IWUSR 00200
-#endif
-#if !S_IXUSR && S_IEXEC
-# define S_IXUSR S_IEXEC
-#endif
-#if !S_IXUSR
-# define S_IXUSR 00100
-#endif
 
 #if _LIBC
 # define struct_stat64 struct stat64
+# define __secure_getenv __libc_secure_getenv
 #else
 # define struct_stat64 struct stat
+# define __gen_tempname gen_tempname
 # define __getpid getpid
 # define __gettimeofday gettimeofday
 # define __mkdir mkdir
 # define __open open
-# define __open64 open
-# define __lxstat64(version, path, buf) lstat (path, buf)
-# define __xstat64(version, path, buf) stat (path, buf)
-#endif
-
-#if ! (HAVE_SECURE_GETENV || _LIBC)
-# ifdef HAVE___SECURE_GETENV
-#  define __libc_secure_getenv __secure_getenv
-# else
-#  define __libc_secure_getenv getenv
-# endif
+# define __lxstat64(version, file, buf) lstat (file, buf)
+# define __secure_getenv secure_getenv
 #endif
 
 #ifdef _LIBC
 # include <hp-timing.h>
 # if HP_TIMING_AVAIL
 #  define RANDOM_BITS(Var) \
-  if (__builtin_expect (value == UINT64_C (0), 0))			      \
+  if (__glibc_unlikely (value == UINT64_C (0)))				      \
     {									      \
       /* If this is the first time this function is used initialize	      \
 	 the variable we accumulate the value in to some somewhat	      \
@@ -137,6 +98,7 @@
 # define uint64_t uintmax_t
 #endif
 
+#if _LIBC
 /* Return nonzero if DIR is an existent directory.  */
 static int
 direxists (const char *dir)
@@ -172,7 +134,7 @@ __path_search (char *tmpl, size_t tmpl_len, const char *dir, const char *pfx,
 
   if (try_tmpdir)
     {
-      d = __libc_secure_getenv ("TMPDIR");
+      d = __secure_getenv ("TMPDIR");
       if (d != NULL && direxists (d))
 	dir = d;
       else if (dir != NULL && direxists (dir))
@@ -207,8 +169,9 @@ __path_search (char *tmpl, size_t tmpl_len, const char *dir, const char *pfx,
   sprintf (tmpl, "%.*s/%.*sXXXXXX", (int) dlen, dir, (int) plen, pfx);
   return 0;
 }
+#endif /* _LIBC */
 
-/* These are the characters used in temporary filenames.  */
+/* These are the characters used in temporary file names.  */
 static const char letters[] =
 "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
 
@@ -240,7 +203,7 @@ __gen_tempname (char *tmpl, int suffixlen, int flags, int kind)
   /* A lower bound on the number of temporary files to attempt to
      generate.  The maximum total number of temporary file names that
      can exist for a given template is 62**6.  It should never be
-     necessary to try all these combinations.  Instead if a reasonable
+     necessary to try all of these combinations.  Instead if a reasonable
      number of names is tried (we define reasonable as 62**3) fail to
      give the system administrator the chance to remove the problems.  */
 #define ATTEMPTS_MIN (62 * 62 * 62)
@@ -267,15 +230,11 @@ __gen_tempname (char *tmpl, int suffixlen, int flags, int kind)
 #ifdef RANDOM_BITS
   RANDOM_BITS (random_time_bits);
 #else
-# if HAVE_GETTIMEOFDAY || _LIBC
   {
     struct timeval tv;
     __gettimeofday (&tv, NULL);
     random_time_bits = ((uint64_t) tv.tv_usec << 16) ^ tv.tv_sec;
   }
-# else
-  random_time_bits = time (NULL);
-# endif
 #endif
   value += random_time_bits ^ __getpid ();
 
@@ -328,6 +287,7 @@ __gen_tempname (char *tmpl, int suffixlen, int flags, int kind)
 
 	default:
 	  assert (! "invalid KIND in __gen_tempname");
+	  abort ();
 	}
 
       if (fd >= 0)
diff --git a/sysdeps/posix/time.c b/sysdeps/posix/time.c
index 016c16ec82..52bc14acaf 100644
--- a/sysdeps/posix/time.c
+++ b/sysdeps/posix/time.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/timespec_get.c b/sysdeps/posix/timespec_get.c
index 05b24f30ae..2609b2e729 100644
--- a/sysdeps/posix/timespec_get.c
+++ b/sysdeps/posix/timespec_get.c
@@ -1,5 +1,5 @@
 /* timespec_get -- C11 interface to sample a clock.  Generic POSIX.1 version.
-   Copyright (C) 2013-2014 Free Software Foundation, Inc.
+   Copyright (C) 2013-2015 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
diff --git a/sysdeps/posix/truncate.c b/sysdeps/posix/truncate.c
index 2473fbb8c9..0120459623 100644
--- a/sysdeps/posix/truncate.c
+++ b/sysdeps/posix/truncate.c
@@ -1,5 +1,5 @@
 /* Truncate a file given by name.  Generic POSIX.1 version.
-   Copyright (C) 1995-2014 Free Software Foundation, Inc.
+   Copyright (C) 1995-2015 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
diff --git a/sysdeps/posix/ttyname.c b/sysdeps/posix/ttyname.c
index 17ed3af867..e2f17ac394 100644
--- a/sysdeps/posix/ttyname.c
+++ b/sysdeps/posix/ttyname.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/ttyname_r.c b/sysdeps/posix/ttyname_r.c
index ffae375e36..483b78516e 100644
--- a/sysdeps/posix/ttyname_r.c
+++ b/sysdeps/posix/ttyname_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/ulimit.c b/sysdeps/posix/ulimit.c
index c9269ec874..d4a48cab58 100644
--- a/sysdeps/posix/ulimit.c
+++ b/sysdeps/posix/ulimit.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/usleep.c b/sysdeps/posix/usleep.c
new file mode 100644
index 0000000000..841f1fa1b1
--- /dev/null
+++ b/sysdeps/posix/usleep.c
@@ -0,0 +1,33 @@
+/* Implementation of the BSD usleep function using nanosleep.
+   Copyright (C) 1996-2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
+
+   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/>.  */
+
+#include <time.h>
+#include <unistd.h>
+
+int
+usleep (useconds_t useconds)
+{
+  struct timespec ts = { .tv_sec = (long int) (useconds / 1000000),
+			 .tv_nsec = (long int) (useconds % 1000000) * 1000ul };
+
+  /* Note the usleep() is a cancellation point.  But since we call
+     nanosleep() which itself is a cancellation point we do not have
+     to do anything here.  */
+  return __nanosleep (&ts, NULL);
+}
diff --git a/sysdeps/posix/utime.c b/sysdeps/posix/utime.c
index a3140114a2..d618bf2814 100644
--- a/sysdeps/posix/utime.c
+++ b/sysdeps/posix/utime.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/utimes.c b/sysdeps/posix/utimes.c
index cdfecfa397..bb6826baf1 100644
--- a/sysdeps/posix/utimes.c
+++ b/sysdeps/posix/utimes.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2015 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
diff --git a/sysdeps/posix/wait.c b/sysdeps/posix/wait.c
index 0a4965272f..5e52d19496 100644
--- a/sysdeps/posix/wait.c
+++ b/sysdeps/posix/wait.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
diff --git a/sysdeps/posix/wait3.c b/sysdeps/posix/wait3.c
index f87b4f14ab..faec545f75 100644
--- a/sysdeps/posix/wait3.c
+++ b/sysdeps/posix/wait3.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2015 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
diff --git a/sysdeps/posix/waitid.c b/sysdeps/posix/waitid.c
index a1f8cc8c4c..de41227916 100644
--- a/sysdeps/posix/waitid.c
+++ b/sysdeps/posix/waitid.c
@@ -1,5 +1,5 @@
 /* Pseudo implementation of waitid.
-   Copyright (C) 1997-2014 Free Software Foundation, Inc.
+   Copyright (C) 1997-2015 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1997.
 
@@ -149,11 +149,7 @@ OUR_WAITID (idtype_t idtype, id_t id, siginfo_t *infop, int options)
 
 
 int
-__waitid (idtype, id, infop, options)
-     idtype_t idtype;
-     id_t id;
-     siginfo_t *infop;
-     int options;
+__waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options)
 {
   if (SINGLE_THREAD_P)
     return do_waitid (idtype, id, infop, options);
diff --git a/sysdeps/posix/writev.c b/sysdeps/posix/writev.c
index ef0058e25e..f35c593c46 100644
--- a/sysdeps/posix/writev.c
+++ b/sysdeps/posix/writev.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2014 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2015 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
@@ -38,7 +38,7 @@ ifree (char **ptrp)
    Operates just like 'write' (see <unistd.h>) except that the data
    are taken from VECTOR instead of a contiguous buffer.  */
 ssize_t
-__libc_writev (int fd, const struct iovec *vector, int count)
+__writev (int fd, const struct iovec *vector, int count)
 {
   /* Find the total number of bytes to be written.  */
   size_t bytes = 0;
@@ -88,7 +88,4 @@ __libc_writev (int fd, const struct iovec *vector, int count)
 
   return bytes_written;
 }
-#ifndef __libc_writev
-strong_alias (__libc_writev, __writev)
-weak_alias (__libc_writev, writev)
-#endif
+weak_alias (__writev, writev)