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

18 files changed, 129 insertions, 464 deletions

diff --git a/sysdeps/mach/bits/libc-lock.h b/sysdeps/mach/bits/libc-lock.h
index 110e25e965..94877e0ea7 100644
--- a/sysdeps/mach/bits/libc-lock.h
+++ b/sysdeps/mach/bits/libc-lock.h
@@ -137,7 +137,6 @@ void *__libc_getspecific (__libc_key_t key);
 #define __libc_lock_lock_recursive __libc_lock_lock
 
 #define __rtld_lock_define_initialized_recursive __libc_lock_define_initialized
-#define __rtld_lock_init_recursive __libc_lock_init
 #define __rtld_lock_fini_recursive __libc_lock_fini
 #define __rtld_lock_trylock_recursive __libc_lock_trylock
 #define __rtld_lock_unlock_recursive __libc_lock_unlock
diff --git a/sysdeps/mach/configure b/sysdeps/mach/configure
index b41449e803..33cf09bd71 100644
--- a/sysdeps/mach/configure
+++ b/sysdeps/mach/configure
@@ -1,102 +1,4 @@
 
-# as_fn_set_status STATUS
-# -----------------------
-# Set $? to STATUS, without forking.
-as_fn_set_status ()
-{
-  return $1
-} # as_fn_set_status
-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
-  set +e
-  as_fn_set_status $1
-  exit $1
-} # as_fn_exit
-# as_fn_arith ARG...
-# ------------------
-# Perform arithmetic evaluation on the ARGs, and store the result in the
-# global $as_val. Take advantage of shells that can avoid forks. The arguments
-# must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
-  eval 'as_fn_arith ()
-  {
-    as_val=$(( $* ))
-  }'
-else
-  as_fn_arith ()
-  {
-    as_val=`expr "$@" || test $? -eq 1`
-  }
-fi # as_fn_arith
-
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
-  as_basename=basename
-else
-  as_basename=false
-fi
-
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
-	 X"$0" : 'X\(//\)$' \| \
-	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
-    sed '/^.*\/\([^/][^/]*\)\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-
-
-  as_lineno_1=$LINENO as_lineno_1a=$LINENO
-  as_lineno_2=$LINENO as_lineno_2a=$LINENO
-  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
-  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
-  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
-  sed -n '
-    p
-    /[$]LINENO/=
-  ' <$as_myself |
-    sed '
-      s/[$]LINENO.*/&-/
-      t lineno
-      b
-      :lineno
-      N
-      :loop
-      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
-      t loop
-      s/-\n.*//
-    ' >$as_me.lineno &&
-  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
-
-  # Don't try to exec as it changes $[0], causing all sort of problems
-  # (the dirname of $[0] is not the place where we might find the
-  # original and so on.  Autoconf is especially sensitive to this).
-  . "./$as_me.lineno"
-  # Exit status is that of the last command.
-  exit
-}
-
 
 # ac_fn_c_try_cpp LINENO
 # ----------------------
@@ -288,45 +190,7 @@ $as_echo_n "checking for task_t in mach/mach_types.h... " >&6; }
 if ${libc_cv_mach_task_t+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-
-# ac_fn_c_try_compile LINENO
-# --------------------------
-# Try to compile conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_compile ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext
-  if { { ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_compile") 2>conftest.err
-  ac_status=$?
-  if test -s conftest.err; then
-    grep -v '^ *+' conftest.err >conftest.er1
-    cat conftest.er1 >&5
-    mv -f conftest.er1 conftest.err
-  fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then :
-  ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_retval=1
-fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_compile
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <mach/mach_types.h>
 int
diff --git a/sysdeps/mach/hurd/Makeconfig b/sysdeps/mach/hurd/Makeconfig
index 1b65bb07aa..fe3b7c553e 100644
--- a/sysdeps/mach/hurd/Makeconfig
+++ b/sysdeps/mach/hurd/Makeconfig
@@ -2,3 +2,6 @@
 # See Makefile in this directory for the rule that builds this.
 # We must define this variable earlier than sysdeps Makefiles are included.
 static-start-installed-name = crt0.o
+
+# GNU libc on the Hurd is always reentrant.
+libc-reentrant = yes
diff --git a/sysdeps/mach/hurd/_G_config.h b/sysdeps/mach/hurd/_G_config.h
deleted file mode 100644
index 9ecd4aad39..0000000000
--- a/sysdeps/mach/hurd/_G_config.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/* This file is needed by libio to define various configuration parameters.
-   These are always the same in the GNU C library.  */
-
-#ifndef _G_config_h
-#define _G_config_h 1
-
-/* Define types for libio in terms of the standard internal type names.  */
-
-#include <bits/types.h>
-#define __need_size_t
-#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
-# define __need_wchar_t
-#endif
-#define __need_NULL
-#include <stddef.h>
-#define __need_mbstate_t
-#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
-# define __need_wint_t
-#endif
-#include <wchar.h>
-#define _G_size_t	size_t
-typedef struct
-{
-  __off_t __pos;
-  __mbstate_t __state;
-} _G_fpos_t;
-typedef struct
-{
-  __off64_t __pos;
-  __mbstate_t __state;
-} _G_fpos64_t;
-#define _G_ssize_t	__ssize_t
-#define _G_off_t	__off_t
-#define _G_off64_t	__off64_t
-#define	_G_pid_t	__pid_t
-#define	_G_uid_t	__uid_t
-#define _G_wchar_t	wchar_t
-#define _G_wint_t	wint_t
-#define _G_stat64	stat64
-#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
-# include <gconv.h>
-typedef union
-{
-  struct __gconv_info __cd;
-  struct
-  {
-    struct __gconv_info __cd;
-    struct __gconv_step_data __data;
-  } __combined;
-} _G_iconv_t;
-#endif
-
-typedef int _G_int16_t __attribute__ ((__mode__ (__HI__)));
-typedef int _G_int32_t __attribute__ ((__mode__ (__SI__)));
-typedef unsigned int _G_uint16_t __attribute__ ((__mode__ (__HI__)));
-typedef unsigned int _G_uint32_t __attribute__ ((__mode__ (__SI__)));
-
-#define _G_HAVE_BOOL 1
-
-
-/* These library features are always available in the GNU C library.  */
-#define _G_HAVE_ATEXIT 1
-#define _G_HAVE_SYS_WAIT 1
-#define _G_NEED_STDARG_H 1
-#define _G_va_list __gnuc_va_list
-
-#define _G_HAVE_PRINTF_FP 1
-#define _G_HAVE_MMAP 1
-#define _G_HAVE_LONG_DOUBLE_IO 1
-#define _G_HAVE_IO_FILE_OPEN 1
-#define _G_HAVE_IO_GETLINE_INFO 1
-
-#define _G_IO_IO_FILE_VERSION 0x20001
-
-#define _G_OPEN64	__open64
-#define _G_LSEEK64	__lseek64
-#define _G_MMAP64	__mmap64
-#define _G_FSTAT64(fd,buf) __fxstat64 (_STAT_VER, fd, buf)
-
-/* This is defined by <bits/stat.h> if `st_blksize' exists.  */
-#define _G_HAVE_ST_BLKSIZE defined (_STATBUF_ST_BLKSIZE)
-
-#define _G_BUFSIZ 8192
-
-/* These are the vtbl details for ELF.  */
-#define _G_NAMES_HAVE_UNDERSCORE 0
-#define _G_VTABLE_LABEL_HAS_LENGTH 1
-#define _G_USING_THUNKS	1
-#define _G_VTABLE_LABEL_PREFIX "__vt_"
-#define _G_VTABLE_LABEL_PREFIX_ID __vt_
-
-#endif	/* _G_config.h */
diff --git a/sysdeps/mach/hurd/bits/libc-lock.h b/sysdeps/mach/hurd/bits/libc-lock.h
index d18a10c457..e8cb71bfdd 100644
--- a/sysdeps/mach/hurd/bits/libc-lock.h
+++ b/sysdeps/mach/hurd/bits/libc-lock.h
@@ -119,8 +119,6 @@ typedef struct __libc_lock_recursive_opaque__ __libc_lock_recursive_t;
   })
 
 
-#define __rtld_lock_init_recursive(NAME) \
-  __libc_lock_init_recursive (NAME)
 #define __rtld_lock_initialize(NAME) \
   (void) ((NAME) = (__rtld_lock_recursive_t) _RTLD_LOCK_RECURSIVE_INITIALIZER)
 #define __rtld_lock_trylock_recursive(NAME) \
diff --git a/sysdeps/mach/hurd/bits/local_lim.h b/sysdeps/mach/hurd/bits/local_lim.h
index 48411d071c..c957dad767 100644
--- a/sysdeps/mach/hurd/bits/local_lim.h
+++ b/sysdeps/mach/hurd/bits/local_lim.h
@@ -1,5 +1,5 @@
 /* Minimum guaranteed maximum values for system limits.  Hurd version.
-   Copyright (C) 1993,94,96,98,2002 Free Software Foundation, Inc.
+   Copyright (C) 1993-2012 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
@@ -32,14 +32,3 @@
    suitable, and `sysconf' will return a number at least as large.  */
 
 #define NGROUPS_MAX	256
-
-/* The maximum number of symbolic links that are allowed in a single file
-   name resolution.  When a further link is encountered, the call returns
-   ELOOP.  This name is a GNU extension; POSIX.1 has no such limit, and BSD
-   calls it MAXSYMLINKS in <sys/param.h>.  (We define the name under
-   _BSD_SOURCE even without _GNU_SOURCE because our <sys/param.h> uses it
-   to define MAXSYMLINKS.)  */
-
-#if defined __USE_GNU || defined __USE_BSD /* 1003.1a defines this */
-#define	SYMLOOP_MAX	8
-#endif
diff --git a/sysdeps/mach/hurd/sys/param.h b/sysdeps/mach/hurd/bits/param.h
index 42f4f46e7d..d52c1edcb6 100644
--- a/sysdeps/mach/hurd/sys/param.h
+++ b/sysdeps/mach/hurd/bits/param.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1993,1994,1995,1997,1999,2011 Free Software Foundation, Inc.
+/* Old-style Unix parameters and limits.  Hurd version.
+   Copyright (C) 1993-2012 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
@@ -15,6 +16,10 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
+#ifndef _SYS_PARAM_H
+# error "Never use <bits/param.h> directly; include <sys/param.h> instead."
+#endif
+
 /* This file is deprecated and is provided only for compatibility with
    Unix systems.  It is unwise to include this file on programs which
    are intended only for GNU systems.
@@ -52,24 +57,6 @@
  */
 
 
-#ifndef	_SYS_PARAM_H
-
-#define	_SYS_PARAM_H	1
-#include <features.h>
-
-#define __need_NULL
-#include <stddef.h>
-
-#include <sys/types.h>
-#include <errno.h>
-#include <signal.h>
-#include <endian.h>
-#include <limits.h>
-#ifdef notyet
-# include <ufs/param.h>
-#endif
-
-
 /* What versions of BSD we are compatible with.  */
 #define	BSD	199306		/* System version (year & month). */
 #define BSD4_3	1
@@ -81,47 +68,12 @@
 /* BSD names for some <limits.h> values.  We do not define the BSD names
    for the values which are not statically limited, such as NOFILE.  */
 
-#define	NBBY		CHAR_BIT
-#define	NGROUPS		NGROUPS_MAX
-#define	MAXSYMLINKS	SYMLOOP_MAX
-#define	CANBSIZ		MAX_CANON /* XXX ? */
-
-/* ARG_MAX is unlimited, but we define NCARGS for BSD programs that want to
-   compare against some fixed limit.  */
-#define	NCARGS		INT_MAX
 
 /* There is nothing quite equivalent in GNU to Unix "mounts", but there is
    no limit on the number of simultaneously attached filesystems.  */
 #define NMOUNT		INT_MAX
 
 
-/* Magical constants.  */
-#define	NOGROUP	65535		/* Marker for empty group set member.  */
-#define	NODEV	((dev_t) -1)	/* Non-existent device.  */
-
-
-/* Bit map related macros.  */
-#define	setbit(a,i)	((a)[(i)/NBBY] |= 1<<((i)%NBBY))
-#define	clrbit(a,i)	((a)[(i)/NBBY] &= ~(1<<((i)%NBBY)))
-#define	isset(a,i)	((a)[(i)/NBBY] & (1<<((i)%NBBY)))
-#define	isclr(a,i)	(((a)[(i)/NBBY] & (1<<((i)%NBBY))) == 0)
-
-/* Macros for counting and rounding.  */
-#ifndef howmany
-# define howmany(x, y)	(((x)+((y)-1))/(y))
-#endif
-#define	roundup(x, y)	((((x)+((y)-1))/(y))*(y))
-#define powerof2(x)	((((x)-1)&(x))==0)
-
-/* Macros for min/max.  */
-#define	MIN(a,b) (((a)<(b))?(a):(b))
-#define	MAX(a,b) (((a)>(b))?(a):(b))
-
-
-/* Unit of `st_blocks'.  */
-#define DEV_BSIZE       512
-
-
 /* Scale factor for scaled integers used to count %cpu time and load avgs.
 
    The number of CPU `tick's that map to a unique `%age' can be expressed
diff --git a/sysdeps/mach/hurd/bits/typesizes.h b/sysdeps/mach/hurd/bits/typesizes.h
index efc13143e7..af132669ff 100644
--- a/sysdeps/mach/hurd/bits/typesizes.h
+++ b/sysdeps/mach/hurd/bits/typesizes.h
@@ -51,7 +51,6 @@
 #define __USECONDS_T_TYPE	__U32_TYPE
 #define __SUSECONDS_T_TYPE	__SLONGWORD_TYPE
 #define __DADDR_T_TYPE		__S32_TYPE
-#define __SWBLK_T_TYPE		__SLONGWORD_TYPE
 #define __KEY_T_TYPE		__S32_TYPE
 #define __CLOCKID_T_TYPE	__S32_TYPE
 #define __TIMER_T_TYPE		__S32_TYPE
diff --git a/sysdeps/mach/hurd/configure b/sysdeps/mach/hurd/configure
index 3c90a665aa..84948a549c 100644
--- a/sysdeps/mach/hurd/configure
+++ b/sysdeps/mach/hurd/configure
@@ -1,128 +1,5 @@
-
-# as_fn_set_status STATUS
-# -----------------------
-# Set $? to STATUS, without forking.
-as_fn_set_status ()
-{
-  return $1
-} # as_fn_set_status
-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
-  set +e
-  as_fn_set_status $1
-  exit $1
-} # as_fn_exit
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
-  as_basename=basename
-else
-  as_basename=false
-fi
-
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
-	 X"$0" : 'X\(//\)$' \| \
-	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
-    sed '/^.*\/\([^/][^/]*\)\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-
-
-  as_lineno_1=$LINENO as_lineno_1a=$LINENO
-  as_lineno_2=$LINENO as_lineno_2a=$LINENO
-  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
-  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
-  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
-  sed -n '
-    p
-    /[$]LINENO/=
-  ' <$as_myself |
-    sed '
-      s/[$]LINENO.*/&-/
-      t lineno
-      b
-      :lineno
-      N
-      :loop
-      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
-      t loop
-      s/-\n.*//
-    ' >$as_me.lineno &&
-  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
-
-  # Don't try to exec as it changes $[0], causing all sort of problems
-  # (the dirname of $[0] is not the place where we might find the
-  # original and so on.  Autoconf is especially sensitive to this).
-  . "./$as_me.lineno"
-  # Exit status is that of the last command.
-  exit
-}
-
-
-# ac_fn_c_try_compile LINENO
-# --------------------------
-# Try to compile conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_compile ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext
-  if { { ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
-  (eval "$ac_compile") 2>conftest.err
-  ac_status=$?
-  if test -s conftest.err; then
-    grep -v '^ *+' conftest.err >conftest.er1
-    cat conftest.er1 >&5
-    mv -f conftest.er1 conftest.err
-  fi
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then :
-  ac_retval=0
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_retval=1
-fi
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_compile
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
 
-# GNU libc on the Hurd is always reentrant.
-DEFINES="$DEFINES -D_LIBC_REENTRANT"
-
 $as_echo "#define NO_HIDDEN 1" >>confdefs.h
 
 
diff --git a/sysdeps/mach/hurd/configure.in b/sysdeps/mach/hurd/configure.in
index 6220142265..ad915a568b 100644
--- a/sysdeps/mach/hurd/configure.in
+++ b/sysdeps/mach/hurd/configure.in
@@ -1,8 +1,5 @@
 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
 
-# GNU libc on the Hurd is always reentrant.
-DEFINES="$DEFINES -D_LIBC_REENTRANT"
-
 dnl We need this setting because of the need for PLT calls in ld.so.
 AC_DEFINE([NO_HIDDEN])
 
diff --git a/sysdeps/mach/hurd/dl-sysdep.c b/sysdeps/mach/hurd/dl-sysdep.c
index 0fdeeac094..78269d2623 100644
--- a/sysdeps/mach/hurd/dl-sysdep.c
+++ b/sysdeps/mach/hurd/dl-sysdep.c
@@ -660,26 +660,6 @@ _dl_show_auxv (void)
 }
 
 
-/* Return an array of useful/necessary hardware capability names.  */
-const struct r_strlenpair *
-internal_function
-_dl_important_hwcaps (const char *platform, size_t platform_len, size_t *sz,
-		      size_t *max_capstrlen)
-{
-  struct r_strlenpair *result;
-
-  /* Return an empty array.  Hurd has no hardware capabilities.  */
-  result = (struct r_strlenpair *) malloc (sizeof (*result));
-  if (result == NULL)
-    _dl_signal_error (ENOMEM, NULL, NULL, "cannot create capability list");
-
-  result[0].str = (char *) result;	/* Does not really matter.  */
-  result[0].len = 0;
-
-  *sz = 1;
-  return result;
-}
-
 void weak_function
 _dl_init_first (int argc, ...)
 {
diff --git a/sysdeps/mach/hurd/eloop-threshold.h b/sysdeps/mach/hurd/eloop-threshold.h
new file mode 100644
index 0000000000..b8fae16449
--- /dev/null
+++ b/sysdeps/mach/hurd/eloop-threshold.h
@@ -0,0 +1,37 @@
+/* Threshold at which to diagnose ELOOP.  Hurd version.
+   Copyright (C) 2012 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 _ELOOP_THRESHOLD_H
+#define _ELOOP_THRESHOLD_H      1
+
+/* Return the maximum number of symlink traversals to permit
+   before diagnosing ELOOP.
+
+   In the Hurd version, here we are actually setting the only policy
+   there is on the system.  We use a literal number here rather than
+   defining SYMLOOP_MAX so that programs don't compile in a number
+   but instead use sysconf and the number can be changed here to
+   affect sysconf's result.  */
+
+static inline unsigned int __attribute__ ((const))
+__eloop_threshold (void)
+{
+  return 32;
+}
+
+#endif  /* eloop-threshold.h */
diff --git a/sysdeps/mach/hurd/fdatasync.c b/sysdeps/mach/hurd/fdatasync.c
index 19d7a4a58a..22c1d103d4 100644
--- a/sysdeps/mach/hurd/fdatasync.c
+++ b/sysdeps/mach/hurd/fdatasync.c
@@ -26,6 +26,12 @@ fdatasync (int fd)
 {
   error_t err = HURD_DPORT_USE (fd, __file_sync (port, 1, 1));
   if (err)
-    return __hurd_dfail (fd, err);
+    {
+      if (err == EOPNOTSUPP)
+	/* If the file descriptor does not support sync, return EINVAL
+	   as POSIX specifies.  */
+	err = EINVAL;
+      return __hurd_dfail (fd, err);
+    }
   return 0;
 }
diff --git a/sysdeps/mach/hurd/fsync.c b/sysdeps/mach/hurd/fsync.c
index a474c8a356..fe3e044a3a 100644
--- a/sysdeps/mach/hurd/fsync.c
+++ b/sysdeps/mach/hurd/fsync.c
@@ -27,6 +27,12 @@ fsync (fd)
 {
   error_t err = HURD_DPORT_USE (fd, __file_sync (port, 1, 0));
   if (err)
-    return __hurd_dfail (fd, err);
+    {
+      if (err == EOPNOTSUPP)
+	/* If the file descriptor does not support sync, return EINVAL
+	   as POSIX specifies.  */
+	err = EINVAL;
+      return __hurd_dfail (fd, err);
+    }
   return 0;
 }
diff --git a/sysdeps/mach/hurd/malloc-machine.h b/sysdeps/mach/hurd/malloc-machine.h
index 4a8bd16e6c..16e054fe5d 100644
--- a/sysdeps/mach/hurd/malloc-machine.h
+++ b/sysdeps/mach/hurd/malloc-machine.h
@@ -66,8 +66,9 @@ __libc_tsd_define (static, void *, MALLOC)	/* declaration/common definition */
 
 #include <sys/mman.h>
 
-#undef	madvise
-#define madvise(addr, len, advice)	((void) (addr), (void) (len), (void) (advice))
+#undef	__madvise
+#define __madvise(addr, len, advice)	\
+  ((void) (addr), (void) (len), (void) (advice))
 
 #include <sysdeps/generic/malloc-machine.h>
 
diff --git a/sysdeps/mach/hurd/ptrace.c b/sysdeps/mach/hurd/ptrace.c
index bb5627284d..bccb265fbf 100644
--- a/sysdeps/mach/hurd/ptrace.c
+++ b/sysdeps/mach/hurd/ptrace.c
@@ -160,7 +160,7 @@ ptrace (enum __ptrace_request request, ... )
     case PTRACE_SINGLESTEP:
       /* This is a machine-dependent kernel RPC on
 	 machines that support it.  Punt.  */
-      return EOPNOTSUPP;
+      return __hurd_fail (EOPNOTSUPP);
 
     case PTRACE_ATTACH:
     case PTRACE_DETACH:
@@ -227,7 +227,7 @@ ptrace (enum __ptrace_request request, ... )
     case PTRACE_PEEKUSER:
     case PTRACE_POKEUSER:
       /* U area, what's that?  */
-      return EOPNOTSUPP;
+      return __hurd_fail (EOPNOTSUPP);
 
     case PTRACE_GETREGS:
     case PTRACE_SETREGS:
@@ -248,7 +248,7 @@ ptrace (enum __ptrace_request request, ... )
       return get_regs (MACHINE_THREAD_FLOAT_STATE_FLAVOR,
 		       MACHINE_THREAD_FLOAT_STATE_COUNT);
 #else
-      return EOPNOTSUPP;
+      return __hurd_fail (EOPNOTSUPP);
 #endif
 
     case PTRACE_GETFPAREGS:
@@ -261,7 +261,7 @@ ptrace (enum __ptrace_request request, ... )
       return get_regs (MACHINE_THREAD_FPA_STATE_FLAVOR,
 		       MACHINE_THREAD_FPA_STATE_COUNT);
 #else
-      return EOPNOTSUPP;
+      return __hurd_fail (EOPNOTSUPP);
 #endif
 
     case PTRACE_POKETEXT:
diff --git a/sysdeps/mach/hurd/renameat.c b/sysdeps/mach/hurd/renameat.c
new file mode 100644
index 0000000000..8ab5906a67
--- /dev/null
+++ b/sysdeps/mach/hurd/renameat.c
@@ -0,0 +1,51 @@
+/* Rename a file using relative source and destination names.  Hurd version.
+   Copyright (C) 1991-2012 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 <stdio.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+
+/* Rename the file OLD relative to OLDFD to NEW relative to NEWFD.  */
+int
+renameat (oldfd, old, newfd, new)
+     int oldfd;
+     const char *old;
+     int newfd;
+     const char *new;
+{
+  error_t err;
+  file_t olddir, newdir;
+  const char *oldname, *newname;
+
+  olddir = __directory_name_split_at (oldfd, old, (char **) &oldname);
+  if (olddir == MACH_PORT_NULL)
+    return -1;
+  newdir = __directory_name_split_at (newfd, new, (char **) &newname);
+  if (newdir == MACH_PORT_NULL)
+    {
+       __mach_port_deallocate (__mach_task_self (), olddir);
+      return -1;
+    }
+
+  err = __dir_rename (olddir, oldname, newdir, newname, 0);
+  __mach_port_deallocate (__mach_task_self (), olddir);
+  __mach_port_deallocate (__mach_task_self (), newdir);
+  if (err)
+    return __hurd_fail (err);
+  return 0;
+}
diff --git a/sysdeps/mach/hurd/dl-cache.c b/sysdeps/mach/hurd/sysconf.c
index 5c01c3d6dd..6d1666d93c 100644
--- a/sysdeps/mach/hurd/dl-cache.c
+++ b/sysdeps/mach/hurd/sysconf.c
@@ -1,5 +1,5 @@
-/* Stubby version of dl-cache; the Hurd doesn't support this "feature".
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Return values of system parameters.  Hurd version.
+   Copyright (C) 2012 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
@@ -16,13 +16,11 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-const char *
-_dl_load_cache_lookup (const char *name)
-{
-  return 0;
-}
+#include <limits.h>
+#include <unistd.h>
 
-void
-_dl_unload_cache (void)
-{
-}
+#include <eloop-threshold.h>
+
+#define SYMLOOP_MAX     (__eloop_threshold ())
+
+#include <sysdeps/posix/sysconf.c>