Merge changes between r20213 and r20391 from /fsf/trunk.

git-svn-id: svn://svn.eglibc.org/trunk@20392 7b3dc134-2b1b-0410-93df-9e9f96275f8d

31 files changed, 129 insertions, 838 deletions

diff --git a/libc/sysdeps/unix/sysv/linux/bits/param.h b/libc/sysdeps/unix/sysv/linux/bits/param.h
new file mode 100644
index 000000000..36ca088e5
--- /dev/null
+++ b/libc/sysdeps/unix/sysv/linux/bits/param.h
@@ -0,0 +1,42 @@
+/* Old-style Unix parameters and limits.  Linux version.
+   Copyright (C) 1995-2012 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 _SYS_PARAM_H
+# error "Never use <bits/param.h> directly; include <sys/param.h> instead."
+#endif
+
+#ifndef ARG_MAX
+# define __undef_ARG_MAX
+#endif
+
+#include <linux/limits.h>
+#include <linux/param.h>
+
+/* The kernel headers define ARG_MAX.  The value is wrong, though.  */
+#ifdef __undef_ARG_MAX
+# undef ARG_MAX
+# undef __undef_ARG_MAX
+#endif
+
+#define	MAXSYMLINKS	20
+
+/* The following are not really correct but it is a value we used for a
+   long time and which seems to be usable.  People should not use NOFILE
+   and NCARGS anyway.  */
+#define NOFILE		256
+#define	NCARGS		131072
diff --git a/libc/sysdeps/unix/sysv/linux/check_pf.c b/libc/sysdeps/unix/sysv/linux/check_pf.c
index 950498acd..eebb3a483 100644
--- a/libc/sysdeps/unix/sysv/linux/check_pf.c
+++ b/libc/sysdeps/unix/sysv/linux/check_pf.c
@@ -78,6 +78,29 @@ __bump_nl_timestamp (void)
 }
 #endif
 
+static inline uint32_t
+get_nl_timestamp (void)
+{
+#ifdef IS_IN_nscd
+  return nl_timestamp;
+#elif defined USE_NSCD
+  return __nscd_get_nl_timestamp ();
+#else
+  return 0;
+#endif
+}
+
+static inline bool
+cache_valid_p (void)
+{
+  if (cache != NULL)
+    {
+      uint32_t timestamp = get_nl_timestamp ();
+      return timestamp != 0 && cache->timestamp == timestamp;
+    }
+  return false;
+}
+
 
 static struct cached_data *
 make_request (int fd, pid_t pid)
@@ -253,11 +276,7 @@ make_request (int fd, pid_t pid)
       if (result == NULL)
 	goto out_fail;
 
-#ifdef IS_IN_nscd
-      result->timestamp = nl_timestamp;
-#else
-      result->timestamp = __nscd_get_nl_timestamp ();
-#endif
+      result->timestamp = get_nl_timestamp ();
       result->usecnt = 2;
       result->seen_ipv4 = seen_ipv4;
       result->seen_ipv6 = true;
@@ -302,14 +321,7 @@ __check_pf (bool *seen_ipv4, bool *seen_ipv6,
 
   __libc_lock_lock (lock);
 
-#ifdef IS_IN_nscd
-# define cache_valid() nl_timestamp != 0 && cache->timestamp == nl_timestamp
-#else
-# define cache_valid() \
-      ({ uint32_t val = __nscd_get_nl_timestamp ();			      \
-	 val != 0 && cache->timestamp == val; })
-#endif
-  if (cache != NULL && cache_valid ())
+  if (cache_valid_p ())
     {
       data = cache;
       atomic_increment (&cache->usecnt);
diff --git a/libc/sysdeps/unix/sysv/linux/dl-fxstatat64.c b/libc/sysdeps/unix/sysv/linux/dl-fxstatat64.c
index 9a17a9b73..1f8c2e641 100644
--- a/libc/sysdeps/unix/sysv/linux/dl-fxstatat64.c
+++ b/libc/sysdeps/unix/sysv/linux/dl-fxstatat64.c
@@ -3,4 +3,4 @@
    function in this case.  */
 #undef __ASSUME_ATFCTS
 #define __ASSUME_ATFCTS 1
-#include "fxstatat64.c"
+#include <fxstatat64.c>
diff --git a/libc/sysdeps/unix/sysv/linux/fxstat64.c b/libc/sysdeps/unix/sysv/linux/fxstat64.c
index dc7864792..b2ad48bdb 100644
--- a/libc/sysdeps/unix/sysv/linux/fxstat64.c
+++ b/libc/sysdeps/unix/sysv/linux/fxstat64.c
@@ -1,5 +1,5 @@
-/* fxstat64 using old-style Unix fstat system call.
-   Copyright (C) 1997-2002, 2003, 2006 Free Software Foundation, Inc.
+/* fxstat64 using Linux fstat64 system call.
+   Copyright (C) 1997-2012 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
@@ -27,57 +27,18 @@
 
 #include <kernel-features.h>
 
-#if __ASSUME_STAT64_SYSCALL == 0
-# include <xstatconv.h>
-#endif
-
-#ifdef __NR_fstat64
-# if  __ASSUME_STAT64_SYSCALL == 0
-/* The variable is shared between all wrappers around *stat64 calls.  */
-extern int __have_no_stat64;
-# endif
-#endif
-
 /* Get information about the file FD in BUF.  */
 
 int
 ___fxstat64 (int vers, int fd, struct stat64 *buf)
 {
   int result;
-#if __ASSUME_STAT64_SYSCALL > 0
   result = INLINE_SYSCALL (fstat64, 2, fd, CHECK_1 (buf));
-# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
+#if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
   if (__builtin_expect (!result, 1) && buf->__st_ino != (__ino_t) buf->st_ino)
     buf->st_ino = buf->__st_ino;
-# endif
-  return result;
-#else
-  struct kernel_stat kbuf;
-# if defined __NR_fstat64
-  if (! __have_no_stat64)
-    {
-      int saved_errno = errno;
-      result = INLINE_SYSCALL (fstat64, 2, fd, CHECK_1 (buf));
-
-      if (result != -1 || errno != ENOSYS)
-	{
-#  if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
-	  if (!result && buf->__st_ino != (__ino_t)buf->st_ino)
-	    buf->st_ino = buf->__st_ino;
-#  endif
-	  return result;
-	}
-
-      __set_errno (saved_errno);
-      __have_no_stat64 = 1;
-    }
-# endif
-  result = INLINE_SYSCALL (fstat, 2, fd, __ptrvalue (&kbuf));
-  if (result == 0)
-    result = __xstat64_conv (vers, &kbuf, buf);
-
-  return result;
 #endif
+  return result;
 }
 
 #include <shlib-compat.h>
diff --git a/libc/sysdeps/unix/sysv/linux/fxstatat64.c b/libc/sysdeps/unix/sysv/linux/fxstatat64.c
index fff9444f0..4aa60df7a 100644
--- a/libc/sysdeps/unix/sysv/linux/fxstatat64.c
+++ b/libc/sysdeps/unix/sysv/linux/fxstatat64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2012 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
@@ -29,18 +29,6 @@
 
 #include <kernel-features.h>
 
-#if __ASSUME_STAT64_SYSCALL == 0
-# include <xstatconv.h>
-#endif
-
-#ifdef __NR_stat64
-# if  __ASSUME_STAT64_SYSCALL == 0
-/* The variable is shared between all wrappers around *stat64 calls.
-   This is the definition.  */
-extern int __have_no_stat64;
-# endif
-#endif
-
 /* Get information about the file NAME in BUF.  */
 
 int
@@ -110,7 +98,6 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag)
       file = buf;
     }
 
-# if __ASSUME_STAT64_SYSCALL > 0
   if (flag & AT_SYMLINK_NOFOLLOW)
     result = INTERNAL_SYSCALL (lstat64, err, 2, CHECK_STRING (file),
 			       CHECK_1 (st));
@@ -119,51 +106,12 @@ __fxstatat64 (int vers, int fd, const char *file, struct stat64 *st, int flag)
 			       CHECK_1 (st));
   if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
     {
-#  if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
+# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
       if (st->__st_ino != (__ino_t) st->st_ino)
 	st->st_ino = st->__st_ino;
-#  endif
+# endif
       return result;
     }
-# else
-  struct kernel_stat kst;
-#  ifdef __NR_stat64
-  if (! __have_no_stat64)
-    {
-      if (flag & AT_SYMLINK_NOFOLLOW)
-	result = INTERNAL_SYSCALL (lstat64, err, 2, CHECK_STRING (file),
-				   CHECK_1 (st));
-      else
-	result = INTERNAL_SYSCALL (stat64, err, 2, CHECK_STRING (file),
-				   CHECK_1 (st));
-
-      if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
-	{
-#   if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
-	  if (st->__st_ino != (__ino_t) st->st_ino)
-	    st->st_ino = st->__st_ino;
-#   endif
-	  return result;
-	}
-      if (INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	goto fail;
-
-      __have_no_stat64 = 1;
-    }
-#  endif
-
-  if (flag & AT_SYMLINK_NOFOLLOW)
-    result = INTERNAL_SYSCALL (lstat, err, 2, CHECK_STRING (file),
-			       __ptrvalue (&kst));
-  else
-    result = INTERNAL_SYSCALL (stat, err, 2, CHECK_STRING (file),
-			       __ptrvalue (&kst));
-
-  if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
-    return __xstat64_conv (vers, &kst, st);
-
- fail:
-# endif
   __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
 
   return -1;
diff --git a/libc/sysdeps/unix/sysv/linux/i386/fxstat.c b/libc/sysdeps/unix/sysv/linux/i386/fxstat.c
index 5077780f0..a1a950ee7 100644
--- a/libc/sysdeps/unix/sysv/linux/i386/fxstat.c
+++ b/libc/sysdeps/unix/sysv/linux/i386/fxstat.c
@@ -1,6 +1,5 @@
 /* fxstat using old-style Unix fstat system call.
-   Copyright (C) 1991,1995-1998,2000,2002,2003,2006
-	Free Software Foundation, Inc.
+   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
@@ -34,26 +33,15 @@
 
 #include <xstatconv.h>
 
-#ifdef __NR_stat64
-# if  __ASSUME_STAT64_SYSCALL == 0
-/* The variable is shared between all wrappers around *stat64 calls.  */
-extern int __have_no_stat64;
-# endif
-#endif
-
 /* Get information about the file FD in BUF.  */
 int
 __fxstat (int vers, int fd, struct stat *buf)
 {
-#if __ASSUME_STAT64_SYSCALL == 0
-  struct kernel_stat kbuf;
-#endif
   int result;
 
   if (vers == _STAT_VER_KERNEL)
     return INLINE_SYSCALL (fstat, 2, fd, CHECK_1 ((struct kernel_stat *) buf));
 
-#if __ASSUME_STAT64_SYSCALL > 0
   {
     struct stat64 buf64;
 
@@ -62,33 +50,6 @@ __fxstat (int vers, int fd, struct stat *buf)
       result = __xstat32_conv (vers, &buf64, buf);
     return result;
   }
-#else
-
-# if defined __NR_stat64
-  /* To support 32 bit UIDs, we have to use stat64.  The normal stat call only returns
-     16 bit UIDs.  */
-  if (! __have_no_stat64)
-    {
-      struct stat64 buf64;
-
-      result = INLINE_SYSCALL (fstat64, 2, fd, __ptrvalue (&buf64));
-
-      if (result == 0)
-	result = __xstat32_conv (vers, &buf64, buf);
-
-      if (result != -1 || errno != ENOSYS)
-	return result;
-
-      __have_no_stat64 = 1;
-    }
-# endif
-
-  result = INLINE_SYSCALL (fstat, 2, fd, __ptrvalue (&kbuf));
-  if (result == 0)
-    result = __xstat_conv (vers, &kbuf, buf);
-
-  return result;
-#endif  /* __ASSUME_STAT64_SYSCALL  */
 }
 
 hidden_def (__fxstat)
diff --git a/libc/sysdeps/unix/sysv/linux/i386/fxstatat.c b/libc/sysdeps/unix/sysv/linux/i386/fxstatat.c
index 7aae336e0..d1e81e081 100644
--- a/libc/sysdeps/unix/sysv/linux/i386/fxstatat.c
+++ b/libc/sysdeps/unix/sysv/linux/i386/fxstatat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2012 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
@@ -35,13 +35,6 @@
 
 #include <xstatconv.h>
 
-#ifdef __NR_stat64
-# if __ASSUME_STAT64_SYSCALL == 0
-/* The variable is shared between all wrappers around *stat64 calls.  */
-extern int __have_no_stat64;
-# endif
-#endif
-
 
 /* Get information about the file NAME relative to FD in ST.  */
 int
@@ -106,9 +99,6 @@ __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
       file = buf;
     }
 
-# if __ASSUME_STAT64_SYSCALL == 0
-  struct kernel_stat kst;
-# endif
   if (vers == _STAT_VER_KERNEL)
     {
       if (flag & AT_SYMLINK_NOFOLLOW)
@@ -120,8 +110,6 @@ __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
       goto out;
     }
 
-# if __ASSUME_STAT64_SYSCALL > 0
-
   if (flag & AT_SYMLINK_NOFOLLOW)
     result = INTERNAL_SYSCALL (lstat64, err, 2, CHECK_STRING (file),
 			       __ptrvalue (&st64));
@@ -130,38 +118,6 @@ __fxstatat (int vers, int fd, const char *file, struct stat *st, int flag)
 			       __ptrvalue (&st64));
   if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
     return __xstat32_conv (vers, &st64, st);
-# else
-#  if defined __NR_stat64
-  /* To support 32 bit UIDs, we have to use stat64.  The normal stat
-     call only returns 16 bit UIDs.  */
-  if (! __have_no_stat64)
-    {
-      if (flag & AT_SYMLINK_NOFOLLOW)
-	result = INTERNAL_SYSCALL (lstat64, err, 2, CHECK_STRING (file),
-				   __ptrvalue (&st64));
-      else
-	result = INTERNAL_SYSCALL (stat64, err, 2, CHECK_STRING (file),
-				   __ptrvalue (&st64));
-
-      if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
-	result = __xstat32_conv (vers, &st64, st);
-
-      if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1)
-	  || INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	goto out;
-
-      __have_no_stat64 = 1;
-    }
-#  endif
-  if (flag & AT_SYMLINK_NOFOLLOW)
-    result = INTERNAL_SYSCALL (lstat, err, 2, CHECK_STRING (file),
-			       __ptrvalue (&kst));
-  else
-    result = INTERNAL_SYSCALL (stat, err, 2, CHECK_STRING (file),
-			       __ptrvalue (&kst));
-  if (__builtin_expect (!INTERNAL_SYSCALL_ERROR_P (result, err), 1))
-    return __xstat_conv (vers, &kst, st);
-# endif  /* __ASSUME_STAT64_SYSCALL  */
 
  out:
   if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
diff --git a/libc/sysdeps/unix/sysv/linux/i386/lxstat.c b/libc/sysdeps/unix/sysv/linux/i386/lxstat.c
index 8994e1700..2b1ecaa0d 100644
--- a/libc/sysdeps/unix/sysv/linux/i386/lxstat.c
+++ b/libc/sysdeps/unix/sysv/linux/i386/lxstat.c
@@ -1,6 +1,5 @@
 /* lxstat using old-style Unix lstat system call.
-   Copyright (C) 1991,1995,1996,1997,1998,2000,2002,2003,2006
-	Free Software Foundation, Inc.
+   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
@@ -34,27 +33,16 @@
 
 #include <xstatconv.h>
 
-#ifdef __NR_stat64
-# if  __ASSUME_STAT64_SYSCALL == 0
-/* The variable is shared between all wrappers around *stat64 calls.  */
-extern int __have_no_stat64;
-# endif
-#endif
-
 
 /* Get information about the file NAME in BUF.  */
 int
 __lxstat (int vers, const char *name, struct stat *buf)
 {
-#if __ASSUME_STAT64_SYSCALL == 0
-  struct kernel_stat kbuf;
-#endif
   int result;
 
   if (vers == _STAT_VER_KERNEL)
     return INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), CHECK_1 ((struct kernel_stat *) buf));
 
-#if __ASSUME_STAT64_SYSCALL > 0
   {
     struct stat64 buf64;
 
@@ -63,32 +51,6 @@ __lxstat (int vers, const char *name, struct stat *buf)
       result = __xstat32_conv (vers, &buf64, buf);
     return result;
   }
-#else
-
-# if defined __NR_stat64
-  /* To support 32 bit UIDs, we have to use stat64.  The normal stat call only returns
-     16 bit UIDs.  */
-  if (! __have_no_stat64)
-    {
-      struct stat64 buf64;
-      result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), __ptrvalue (&buf64));
-
-      if (result == 0)
-	result = __xstat32_conv (vers, &buf64, buf);
-
-      if (result != -1 || errno != ENOSYS)
-	return result;
-
-      __have_no_stat64 = 1;
-    }
-# endif
-
-  result = INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
-  if (result == 0)
-    result = __xstat_conv (vers, &kbuf, buf);
-
-  return result;
-#endif
 }
 
 hidden_def (__lxstat)
diff --git a/libc/sysdeps/unix/sysv/linux/i386/mmap.S b/libc/sysdeps/unix/sysv/linux/i386/mmap.S
index c8bf3e108..1f79bde28 100644
--- a/libc/sysdeps/unix/sysv/linux/i386/mmap.S
+++ b/libc/sysdeps/unix/sysv/linux/i386/mmap.S
@@ -25,10 +25,6 @@
 
 ENTRY (__mmap)
 
-/* I don't think it is worthwhile trying to use mmap2 whenever it
-   is available.  Only use it when we are sure the syscall exists.  */
-#ifdef __ASSUME_MMAP2_SYSCALL
-
 	/* Save registers.  */
 	pushl %ebp
 	cfi_adjust_cfa_offset (4)
@@ -73,25 +69,6 @@ L(skip):
 	cfi_adjust_cfa_offset (-4)
 	cfi_restore (ebp)
 
-#else
-
-	/* Save registers.  */
-	movl %ebx, %edx
-	cfi_register (ebx, edx)
-
-	movl $SYS_ify(mmap), %eax	/* System call number in %eax.  */
-
-	lea 4(%esp), %ebx		/* Address of args is 1st arg.  */
-
-	/* Do the system call trap.  */
-	int $0x80
-
-	/* Restore registers.  */
-	movl %edx, %ebx
-	cfi_restore (ebx)
-
-#endif
-
 	/* If 0 > %eax > -4096 there was an error.  */
 	cmpl $-4096, %eax
 	ja SYSCALL_ERROR_LABEL
diff --git a/libc/sysdeps/unix/sysv/linux/i386/mmap64.S b/libc/sysdeps/unix/sysv/linux/i386/mmap64.S
index 7599b8544..8855109ff 100644
--- a/libc/sysdeps/unix/sysv/linux/i386/mmap64.S
+++ b/libc/sysdeps/unix/sysv/linux/i386/mmap64.S
@@ -37,8 +37,6 @@
 	.text
 ENTRY (BP_SYM (__mmap64))
 
-#ifdef __NR_mmap2
-
 	/* Save registers.  */
 	pushl %ebp
 	cfi_adjust_cfa_offset (4)
@@ -88,12 +86,6 @@ L(do_syscall):
 	cfi_adjust_cfa_offset (-4)
 	cfi_restore (ebp)
 
-#ifndef __ASSUME_MMAP2_SYSCALL
-2:
-	cmp $-ENOSYS, %eax
-	je 3f
-#endif
-
 	/* If 0 > %eax > -4096 there was an error.  */
 	cmpl $-4096, %eax
 	ja SYSCALL_ERROR_LABEL
@@ -122,42 +114,6 @@ L(einval):
 	cfi_restore (ebp)
 	movl $-EINVAL, %eax
 	jmp SYSCALL_ERROR_LABEL
-#endif
-
-#if !defined __ASSUME_MMAP2_SYSCALL || !defined __NR_mmap2
-3:
-	/* Save registers.  */
-	movl %ebx, %edx
-	cfi_register (ebx, edx)
-
-	cmpl $0, OFFHI-SVRSP(%esp)
-	jne L(einval2)
-
-	movl $SYS_ify(mmap), %eax	/* System call number in %eax.  */
-
-	lea ADDR-SVRSP(%esp), %ebx	/* Address of args is 1st arg.  */
-
-	/* Do the system call trap.  */
-	ENTER_KERNEL
-
-	/* Restore registers.  */
-	movl %edx, %ebx
-	cfi_restore (ebx)
-
-	/* If 0 > %eax > -4096 there was an error.  */
-	cmpl $-4096, %eax
-	ja SYSCALL_ERROR_LABEL
-
-	/* Successful; return the syscall's value.  */
-	ret
-
-	cfi_register (ebx, edx)
-L(einval2):
-	movl %edx, %ebx
-	cfi_restore (ebx)
-	movl $-EINVAL, %eax
-	jmp SYSCALL_ERROR_LABEL
-#endif
 
 PSEUDO_END (BP_SYM (__mmap64))
 
diff --git a/libc/sysdeps/unix/sysv/linux/i386/posix_fadvise64.S b/libc/sysdeps/unix/sysv/linux/i386/posix_fadvise64.S
index 79fc071d2..00e6a4194 100644
--- a/libc/sysdeps/unix/sysv/linux/i386/posix_fadvise64.S
+++ b/libc/sysdeps/unix/sysv/linux/i386/posix_fadvise64.S
@@ -1,5 +1,4 @@
-/* Copyright (C) 1995-2000,2002,2003,2004,2005,2006
-	Free Software Foundation, Inc.
+/* Copyright (C) 1995-2012 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
@@ -20,8 +19,6 @@
 #include <bp-sym.h>
 #include <bp-asm.h>
 
-#include <kernel-features.h>
-
 #define EINVAL	22
 #define ENOSYS	38
 #define EOVERFLOW 75
@@ -38,8 +35,6 @@
 	.text
 ENTRY (BP_SYM (__posix_fadvise64_l64))
 
-#ifdef __NR_fadvise64_64
-
 	/* Save registers.  */
 	pushl	%ebp
 	cfi_adjust_cfa_offset (4)
@@ -78,11 +73,6 @@ ENTRY (BP_SYM (__posix_fadvise64_l64))
 	cfi_adjust_cfa_offset (-4)
 	cfi_restore (ebp)
 
-#ifndef __ASSUME_FADVISE64_64_SYSCALL
-	cmpl	$-ENOSYS, %eax
-	je	1f
-#endif
-
 	/* The function returns zero, or the error number.  So all we
 	   have to do is negate the value passed back from the kernel.  */
 	/* If 0 > %eax > -4096 there was an error.  */
@@ -90,72 +80,15 @@ ENTRY (BP_SYM (__posix_fadvise64_l64))
 
 	/* Successful; return the syscall's value.  */
 	ret
-#endif
-
-#if defined __NR_fadvise64 \
-    && (!defined __ASSUME_FADVISE64_64_SYSCALL || !defined __NR_fadvise64_64)
-1:	/* Save registers.  */
-	pushl	%ebx
-	cfi_adjust_cfa_offset (4)
-	pushl	%esi
-	cfi_adjust_cfa_offset (4)
-	pushl	%edi
-	cfi_adjust_cfa_offset (4)
-
-	/* Overflow check.  */
-	cmpl	$0, LENHI(%esp)
-	movl	$-EOVERFLOW, %eax
-	jne	L(overflow)
-
-	movl	FD(%esp), %ebx
-	cfi_rel_offset (ebx, 8)
-	movl	OFFLO(%esp), %ecx
-	movl	OFFHI(%esp), %edx
-	movl	LENLO(%esp), %esi
-	cfi_rel_offset (esi, 4)
-	movl	FLAGS(%esp), %edi
-	cfi_rel_offset (edi, 0)
-
-	movl	$SYS_ify(fadvise64), %eax
-	ENTER_KERNEL
-
-	/* Restore registers.  */
-L(overflow):
-	popl	%edi
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (edi)
-	popl	%esi
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (esi)
-	popl	%ebx
-	cfi_adjust_cfa_offset (-4)
-	cfi_restore (ebx)
-
-	/* If 0 > %eax > -4096 there was an error.  */
-	negl	%eax
-
-	/* Successful; return the syscall's value.  */
-	ret
-#else
-	movl	$ENOSYS, %eax
-	ret
-#endif
 
 END (BP_SYM (__posix_fadvise64_l64))
 
-#ifdef __NR_fadvise64
 	.section	.text.compat, "ax"
 ENTRY (__posix_fadvise64_l32)
 	DO_CALL (fadvise64, 5)
 	negl %eax
 	ret
 PSEUDO_END_ERRVAL (__posix_fadvise64_l32)
-#else
-ENTRY (BP_SYM (__posix_fadvise64_l32))
-	movl	$ENOSYS, %eax
-	ret
-END (BP_SYM (__posix_fadvise64_l32))
-#endif
 
 default_symbol_version (__posix_fadvise64_l64, posix_fadvise64, GLIBC_2.3.3)
 symbol_version (__posix_fadvise64_l32, posix_fadvise64, GLIBC_2.2)
diff --git a/libc/sysdeps/unix/sysv/linux/i386/xstat.c b/libc/sysdeps/unix/sysv/linux/i386/xstat.c
index 236ec748f..0fe7a9dcd 100644
--- a/libc/sysdeps/unix/sysv/linux/i386/xstat.c
+++ b/libc/sysdeps/unix/sysv/linux/i386/xstat.c
@@ -1,6 +1,5 @@
 /* xstat using old-style Unix stat system call.
-   Copyright (C) 1991,95,96,97,98,2000,2002,2003,2006
-	Free Software Foundation, Inc.
+   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
@@ -34,27 +33,16 @@
 
 #include <xstatconv.h>
 
-#ifdef __NR_stat64
-# if __ASSUME_STAT64_SYSCALL == 0
-/* The variable is shared between all wrappers around *stat64 calls.  */
-extern int __have_no_stat64;
-# endif
-#endif
-
 
 /* Get information about the file NAME in BUF.  */
 int
 __xstat (int vers, const char *name, struct stat *buf)
 {
-#if __ASSUME_STAT64_SYSCALL == 0
-  struct kernel_stat kbuf;
-#endif
   int result;
 
   if (vers == _STAT_VER_KERNEL)
     return INLINE_SYSCALL (stat, 2, CHECK_STRING (name), CHECK_1 ((struct kernel_stat *) buf));
 
-#if __ASSUME_STAT64_SYSCALL > 0
   {
     struct stat64 buf64;
 
@@ -63,31 +51,6 @@ __xstat (int vers, const char *name, struct stat *buf)
       result = __xstat32_conv (vers, &buf64, buf);
     return result;
   }
-#else
-# if defined __NR_stat64
-  /* To support 32 bit UIDs, we have to use stat64.  The normal stat call only returns
-     16 bit UIDs.  */
-  if (! __have_no_stat64)
-    {
-      struct stat64 buf64;
-
-      result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), __ptrvalue (&buf64));
-
-      if (result == 0)
-	result = __xstat32_conv (vers, &buf64, buf);
-
-      if (result != -1 || errno != ENOSYS)
-	return result;
-
-      __have_no_stat64 = 1;
-    }
-# endif
-  result = INLINE_SYSCALL (stat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
-  if (result == 0)
-    result = __xstat_conv (vers, &kbuf, buf);
-
-  return result;
-#endif  /* __ASSUME_STAT64_SYSCALL  */
 }
 hidden_def (__xstat)
 weak_alias (__xstat, _xstat);
diff --git a/libc/sysdeps/unix/sysv/linux/kernel-features.h b/libc/sysdeps/unix/sysv/linux/kernel-features.h
index 6b0eb95c5..33fca5c4f 100644
--- a/libc/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/libc/sysdeps/unix/sysv/linux/kernel-features.h
@@ -40,29 +40,6 @@
 /* The sendfile syscall was introduced in 2.2.0.  */
 #define __ASSUME_SENDFILE		1
 
-/* On x86 the mmap2 syscall was introduced in 2.3.31.  */
-#ifdef __i386__
-# define __ASSUME_MMAP2_SYSCALL	1
-#endif
-
-/* On x86 the stat64/lstat64/fstat64 syscalls were introduced in 2.3.34.  */
-#ifdef __i386__
-# define __ASSUME_STAT64_SYSCALL	1
-#endif
-
-/* On sparc the mmap2/stat64/lstat64/fstat64 syscalls were introduced
-   in 2.3.35.  */
-#if defined __sparc__ && !defined __arch64__
-# define __ASSUME_MMAP2_SYSCALL		1
-# define __ASSUME_STAT64_SYSCALL	1
-#endif
-
-/* I know for sure that these are in 2.3.35 on powerpc. But PowerPC64 does not
-   support separate 64-bit syscalls, already 64-bit.  */
-#if defined __powerpc__ && !defined __powerpc64__
-# define __ASSUME_STAT64_SYSCALL	1
-#endif
-
 /* Linux 2.3.39 introduced IPC64.  Except for powerpc.  Linux 2.4.0 on
    PPC introduced a correct IPC64.  But PowerPC64 does not support a
    separate 64-bit syscall, already 64-bit.  */
@@ -70,12 +47,6 @@
 # define __ASSUME_IPC64		1
 #endif
 
-/* SH kernels got stat64 and mmap2 during 2.4.0-test.  */
-#ifdef __sh__
-# define __ASSUME_MMAP2_SYSCALL		1
-# define __ASSUME_STAT64_SYSCALL	1
-#endif
-
 /* The changed st_ino field appeared in 2.4.0-test6.  However, SH is lame,
    and still does not have a 64-bit inode field.  */
 #ifndef __sh__
@@ -86,12 +57,6 @@
    MIPS n32).  */
 #define __ASSUME_GETDENTS64_SYSCALL	1
 
-/* Starting with 2.4.5 kernels the mmap2 syscall made it into the official
-   kernel.  But PowerPC64 does not support a separate MMAP2 call.  */
-#if defined __powerpc__ && !defined __powerpc64__
-# define __ASSUME_MMAP2_SYSCALL		1
-#endif
-
 /* Beginning with 2.6.12 the clock and timer supports CPU clocks.  */
 #define __ASSUME_POSIX_CPU_TIMERS	1
 
@@ -100,35 +65,17 @@
 
 /* The utimes syscall has been available for some architectures
    forever.  For x86 it was introduced after 2.5.75, for x86-64,
-   ppc, and ppc64 it was introduced in 2.6.0-test3.  */
+   ppc, and ppc64 it was introduced in 2.6.0-test3, for s390 it was
+   introduced in 2.6.21-rc5.  */
 #if defined __sparc__ \
     || defined __i386__ \
     || defined __x86_64__ \
     || defined __powerpc__ \
-    || defined __sh__
+    || defined __sh__ \
+    || (defined __s390__ && __LINUX_KERNEL_VERSION >= 0x020616)
 # define __ASSUME_UTIMES	1
 #endif
 
-/* The fixed version of the posix_fadvise64 syscall appeared in
-   2.6.0-test3.  At least for x86 and sparc.  Powerpc support appeared
-   in 2.6.2, but for 32-bit userspace only.  */
-#if (defined __i386__ || defined __sparc__			\
-     || (defined __powerpc__ && !defined __powerpc64__))
-# define __ASSUME_FADVISE64_64_SYSCALL	1
-#endif
-
-/* Starting with 2.6.0 PowerPC adds signal/swapcontext support for Vector
-   SIMD (AKA Altivec, VMX) instructions and register state.  This changes
-   the overall size of the sigcontext and adds the swapcontext syscall.  */
-#ifdef __powerpc__
-# define __ASSUME_SWAPCONTEXT_SYSCALL	1
-#endif
-
-/* On sparc64 stat64/lstat64/fstat64 syscalls were introduced in 2.6.12.  */
-#if defined __sparc__ && defined __arch64__
-# define __ASSUME_STAT64_SYSCALL	1
-#endif
-
 /* pselect/ppoll were introduced just after 2.6.16-rc1.  Due to the way
    the kernel versions are advertised we can only rely on 2.6.17 to have
    the code.  On x86_64 and SH this appeared first in 2.6.19-rc1,
diff --git a/libc/sysdeps/unix/sysv/linux/lxstat64.c b/libc/sysdeps/unix/sysv/linux/lxstat64.c
index c6920b47c..765b195c6 100644
--- a/libc/sysdeps/unix/sysv/linux/lxstat64.c
+++ b/libc/sysdeps/unix/sysv/linux/lxstat64.c
@@ -1,5 +1,5 @@
-/* lxstat64 using old-style Unix lstat system call.
-   Copyright (C) 1997-2002,2003,2006 Free Software Foundation, Inc.
+/* lxstat64 using Linux lstat64 system call.
+   Copyright (C) 1997-2012 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
@@ -27,56 +27,17 @@
 
 #include <kernel-features.h>
 
-#if __ASSUME_STAT64_SYSCALL == 0
-# include <xstatconv.h>
-#endif
-
-#ifdef __NR_lstat64
-# if  __ASSUME_STAT64_SYSCALL == 0
-/* The variable is shared between all wrappers around *stat64 calls.  */
-extern int __have_no_stat64;
-# endif
-#endif
-
 /* Get information about the file NAME in BUF.  */
 int
 ___lxstat64 (int vers, const char *name, struct stat64 *buf)
 {
   int result;
-#ifdef __ASSUME_STAT64_SYSCALL
   result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), CHECK_1 (buf));
-# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
+#if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
   if (__builtin_expect (!result, 1) && buf->__st_ino != (__ino_t) buf->st_ino)
     buf->st_ino = buf->__st_ino;
-# endif
-  return result;
-#else
-  struct kernel_stat kbuf;
-# ifdef __NR_lstat64
-  if (! __have_no_stat64)
-    {
-      int saved_errno = errno;
-      result = INLINE_SYSCALL (lstat64, 2, CHECK_STRING (name), CHECK_1 (buf));
-
-      if (result != -1 || errno != ENOSYS)
-	{
-#  if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
-	  if (!result && buf->__st_ino != (__ino_t) buf->st_ino)
-	    buf->st_ino = buf->__st_ino;
-#  endif
-	  return result;
-	}
-
-      __set_errno (saved_errno);
-      __have_no_stat64 = 1;
-    }
-# endif
-  result = INLINE_SYSCALL (lstat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
-  if (result == 0)
-    result = __xstat64_conv (vers, &kbuf, buf);
-
-  return result;
 #endif
+  return result;
 }
 
 #include <shlib-compat.h>
diff --git a/libc/sysdeps/unix/sysv/linux/mmap64.c b/libc/sysdeps/unix/sysv/linux/mmap64.c
index 495d77768..bca15f9c5 100644
--- a/libc/sysdeps/unix/sysv/linux/mmap64.c
+++ b/libc/sysdeps/unix/sysv/linux/mmap64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999,2000,2001,2002,2006,2010 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Jakub Jelinek <jakub@redhat.com>, 1999.
 
@@ -26,76 +26,42 @@
 
 #include <kernel-features.h>
 
-#ifdef __NR_mmap2
-
 /* This is always 12, even on architectures where PAGE_SHIFT != 12.  */
-# if MMAP2_PAGE_SHIFT == -1
+#if MMAP2_PAGE_SHIFT == -1
 static int page_shift;
-# else
-#  ifndef MMAP2_PAGE_SHIFT
-#   define MMAP2_PAGE_SHIFT 12
-#  endif
-# define page_shift MMAP2_PAGE_SHIFT
-# endif
-
-# ifndef __ASSUME_MMAP2_SYSCALL
-static int have_no_mmap2;
+#else
+# ifndef MMAP2_PAGE_SHIFT
+#  define MMAP2_PAGE_SHIFT 12
 # endif
+#define page_shift MMAP2_PAGE_SHIFT
 #endif
 
 
 void *
 __mmap64 (void *addr, size_t len, int prot, int flags, int fd, off64_t offset)
 {
-#ifdef __NR_mmap2
-# if MMAP2_PAGE_SHIFT == -1
+#if MMAP2_PAGE_SHIFT == -1
   if (page_shift == 0)
     {
       int page_size = getpagesize ();
       while ((1 << ++page_shift) != page_size)
 	;
     }
-# endif
-  if (offset & ((1 << page_shift) - 1))
-    {
-      __set_errno (EINVAL);
-      return MAP_FAILED;
-    }
-# ifndef __ASSUME_MMAP2_SYSCALL
-  if (! have_no_mmap2)
-# endif
-    {
-# ifndef __ASSUME_MMAP2_SYSCALL
-      int saved_errno = errno;
-# endif
-      void *result;
-      __ptrvalue (result) = (void *__unbounded)
-	INLINE_SYSCALL (mmap2, 6, __ptrvalue (addr),
-			len, prot, flags, fd,
-			(off_t) (offset >> MMAP2_PAGE_SHIFT));
-# if __BOUNDED_POINTERS__
-      __ptrlow (result) = __ptrvalue (result);
-      __ptrhigh (result) = __ptrvalue (result) + len;
-# endif
-# ifndef __ASSUME_MMAP2_SYSCALL
-      if (result != MAP_FAILED || errno != ENOSYS)
-# endif
-	return result;
-
-# ifndef __ASSUME_MMAP2_SYSCALL
-      __set_errno (saved_errno);
-      have_no_mmap2 = 1;
-# endif
-    }
 #endif
-#ifndef __ASSUME_MMAP2_SYSCALL
-  if (offset != (off_t) offset || (offset + len) != (off_t) (offset + len))
+  if (offset & ((1 << page_shift) - 1))
     {
       __set_errno (EINVAL);
       return MAP_FAILED;
     }
-
-  return __mmap (addr, len, prot, flags, fd, (off_t) offset);
+  void *result;
+  __ptrvalue (result) = (void *__unbounded)
+    INLINE_SYSCALL (mmap2, 6, __ptrvalue (addr),
+		    len, prot, flags, fd,
+		    (off_t) (offset >> MMAP2_PAGE_SHIFT));
+#if __BOUNDED_POINTERS__
+  __ptrlow (result) = __ptrvalue (result);
+  __ptrhigh (result) = __ptrvalue (result) + len;
 #endif
+  return result;
 }
 weak_alias (__mmap64, mmap64)
diff --git a/libc/sysdeps/unix/sysv/linux/nice.c b/libc/sysdeps/unix/sysv/linux/nice.c
index 46a6da80c..3bcbb1e89 100644
--- a/libc/sysdeps/unix/sysv/linux/nice.c
+++ b/libc/sysdeps/unix/sysv/linux/nice.c
@@ -1 +1 @@
-#include <sysdeps/unix/nice.c>
+#include <sysdeps/posix/nice.c>
diff --git a/libc/sysdeps/unix/sysv/linux/posix_fadvise64.c b/libc/sysdeps/unix/sysv/linux/posix_fadvise64.c
index 5d51cf243..3eea6deac 100644
--- a/libc/sysdeps/unix/sysv/linux/posix_fadvise64.c
+++ b/libc/sysdeps/unix/sysv/linux/posix_fadvise64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 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
@@ -18,7 +18,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <sysdep.h>
-#include <kernel-features.h>
 
 int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise);
 int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
@@ -29,7 +28,6 @@ int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
 int
 __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
 {
-#ifdef __NR_fadvise64_64
   INTERNAL_SYSCALL_DECL (err);
   int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd,
 			      __LONG_LONG_PAIR ((long) (offset >> 32),
@@ -39,28 +37,7 @@ __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
 			      advise);
   if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
     return 0;
-# ifndef __ASSUME_FADVISE64_64_SYSCALL
-  if (INTERNAL_SYSCALL_ERRNO (ret, err) != ENOSYS)
-# endif
-   return INTERNAL_SYSCALL_ERRNO (ret, err);
-#endif
-#ifndef __ASSUME_FADVISE64_64_SYSCALL
-# ifdef __NR_fadvise64
-  if (len != (off_t) len)
-    return EOVERFLOW;
-
-  INTERNAL_SYSCALL_DECL (err2);
-  int ret2 = INTERNAL_SYSCALL (fadvise64, err2, 5, fd,
-			       __LONG_LONG_PAIR ((long) (offset >> 32),
-						 (long) offset),
-			       (off_t) len, advise);
-  if (!INTERNAL_SYSCALL_ERROR_P (ret2, err2))
-    return 0;
-  return INTERNAL_SYSCALL_ERRNO (ret2, err2);
-# else
-  return ENOSYS;
-# endif
-#endif
+  return INTERNAL_SYSCALL_ERRNO (ret, err);
 }
 
 #include <shlib-compat.h>
diff --git a/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S b/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
index 2d36df458..27f2348da 100644
--- a/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
+++ b/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
@@ -32,7 +32,6 @@
 /* Size of ucontext in GLIBC_2.3.4 and later.  */
 #define _UC_SIZE_2_3_4	1184
 
-#ifdef __ASSUME_SWAPCONTEXT_SYSCALL
 	.section ".text";
 ENTRY (__getcontext)
 	li	r4,0
@@ -45,9 +44,6 @@ ENTRY (__getcontext)
 1:
 	b	__syscall_error@local
 END(__getcontext)
-#else
-# include "getcontext-common.S"
-#endif
 
 versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_4)
 
diff --git a/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/posix_fadvise64.c b/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/posix_fadvise64.c
index 2ffaec675..5b11e28ba 100644
--- a/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/posix_fadvise64.c
+++ b/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/posix_fadvise64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 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
@@ -18,7 +18,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <sysdep.h>
-#include <kernel-features.h>
 
 int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise);
 int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
@@ -29,34 +28,13 @@ int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
 int
 __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
 {
-#ifdef __NR_fadvise64_64
   INTERNAL_SYSCALL_DECL (err);
   int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd, advise,
 			      __LONG_LONG_PAIR ((long)(offset >> 32), (long)offset),
 			      __LONG_LONG_PAIR ((long)(len >> 32), (long)len));
   if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
     return 0;
-# ifndef __ASSUME_FADVISE64_64_SYSCALL
-  if (INTERNAL_SYSCALL_ERRNO (ret, err) != ENOSYS)
-# endif
-   return INTERNAL_SYSCALL_ERRNO (ret, err);
-#endif
-#ifndef __ASSUME_FADVISE64_64_SYSCALL
-# ifdef __NR_fadvise64
-  if (len != (off_t) len)
-    return EOVERFLOW;
-
-  INTERNAL_SYSCALL_DECL (err2);
-  int ret2 = INTERNAL_SYSCALL (fadvise64, err2, 6, fd, 0,
-			       __LONG_LONG_PAIR ((long)(offset >> 32), (long)offset),
-			       (off_t) len, advise);
-  if (!INTERNAL_SYSCALL_ERROR_P (ret2, err2))
-    return 0;
-  return INTERNAL_SYSCALL_ERRNO (ret2, err2);
-# else
-  return ENOSYS;
-# endif
-#endif
+  return INTERNAL_SYSCALL_ERRNO (ret, err);
 }
 
 #include <shlib-compat.h>
diff --git a/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S b/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
index fa7d05f70..b96b04040 100644
--- a/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
+++ b/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
@@ -1,5 +1,5 @@
 /* Jump to a new context.
-   Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 2002-2012 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
@@ -32,7 +32,6 @@
 /* Size of ucontext in GLIBC_2.3.4 and later.  */
 #define _UC_SIZE_2_3_4	1184
 
-#ifdef __ASSUME_SWAPCONTEXT_SYSCALL
 	.section ".text";
 ENTRY (__setcontext)
 	mr	r4,r3
@@ -46,9 +45,6 @@ ENTRY (__setcontext)
 1:
 	b	__syscall_error@local
 END(__setcontext)
-#else
-# include "setcontext-common.S"
-#endif
 
 versioned_symbol (libc, __setcontext, setcontext, GLIBC_2_3_4)
 
diff --git a/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S b/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
index 0189af8e2..556c8020d 100644
--- a/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
+++ b/libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
@@ -1,5 +1,5 @@
 /* Save current context and jump to a new context.
-   Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2002-2012 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
@@ -32,7 +32,6 @@
 /* Size of ucontext in GLIBC_2.3.4 and later.  */
 #define _UC_SIZE_2_3_4	1184
 
-#ifdef __ASSUME_SWAPCONTEXT_SYSCALL
 	.section ".text";
 ENTRY (__swapcontext)
 	li	r5,_UC_SIZE_2_3_4;
@@ -44,9 +43,6 @@ ENTRY (__swapcontext)
 1:
 	b	__syscall_error@local
 END(__swapcontext)
-#else
-# include "swapcontext-common.S"
-#endif
 
 versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_3_4)
 
diff --git a/libc/sysdeps/unix/sysv/linux/s390/s390-32/getrlimit.c b/libc/sysdeps/unix/sysv/linux/s390/s390-32/getrlimit.c
deleted file mode 100644
index fc06dbd64..000000000
--- a/libc/sysdeps/unix/sysv/linux/s390/s390-32/getrlimit.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/i386/getrlimit.c>
diff --git a/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S b/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S
index 6e5ba94c1..0357ab461 100644
--- a/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S
+++ b/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 Free Software Foundation, Inc.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
@@ -40,8 +40,8 @@ ENTRY(__mmap)
 	cfi_adjust_cfa_offset (120)
 	st      %r1,0(%r15)             /* store back chain */
 
-	/* Store parameters on stack, because old_mmap/mmap2
-	 * take only one parameter: a pointer to the parameter area
+	/* Store parameters on stack, because mmap2
+	 * takes only one parameter: a pointer to the parameter area
 	 */
 	st      %r6,0x70(%r15)          /* Store 'fd'.      */
 	st      %r5,0x6C(%r15)          /* Store 'flags'.   */
@@ -50,10 +50,6 @@ ENTRY(__mmap)
 	st      %r2,0x60(%r15)          /* Store 'start'.   */
 	l       %r1,216(%r15)           /* Load offset.     */
 
-#ifdef __ASSUME_MMAP2_SYSCALL
-	/* I don't think it is worthwhile trying to use mmap2 whenever 
-	 * it is available.  Only use it when we are sure the syscall
-	 * exists.  */
 	tml     %r1,0x0fff              /* Offset page aligned ?  */
 	lhi     %r2,-EINVAL
 	jnz     1f                      /* No -> EINVAL.  */
@@ -61,11 +57,6 @@ ENTRY(__mmap)
 	st      %r1,0x74(%r15)          /* Store page offset.  */
 	la      %r2,0x60(%r15)          /* Load address of parameter list.  */
 	svc     SYS_ify(mmap2)          /* Do the system call trap.  */
-#else	
-	st      %r1,0x74(%r15)          /* Store offset unmodified.  */
-	la      %r2,0x60(%r15)          /* Load address of parameter list.  */
-	svc     SYS_ify(mmap)           /* Do the system call trap.  */
-#endif
 
 1:	l       %r15,0(%r15)            /* Load back chain.  */
 	cfi_adjust_cfa_offset (-120)
diff --git a/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S b/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S
index ad6d254db..8b4bd4556 100644
--- a/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S
+++ b/libc/sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 Free Software Foundation, Inc.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
@@ -41,15 +41,14 @@ ENTRY(__mmap64)
 	cfi_adjust_cfa_offset (120)
 	st	%r1,0(%r15)		/* Store back chain.  */
 
-	/* Store parameters on stack, because mmap2 and old_mmap
-	 * take only one parameter: a pointer to the parameter area.  */
+	/* Store parameters on stack, because mmap2
+	 * takes only one parameter: a pointer to the parameter area.  */
 	st	%r6,0x70(%r15)		/* Store 'fd'.	    */
 	st	%r5,0x6C(%r15)		/* Store 'flags'.   */
 	st	%r4,0x68(%r15)		/* Store 'prot'.    */
 	st	%r3,0x64(%r15)		/* Store 'length'.  */
 	st	%r2,0x60(%r15)		/* Store 'start'.   */
 
-#ifdef __NR_mmap2
 	lm	%r0,%r1,216(%r15)	/* Load 64 bit offset.	*/
 	tml	%r1,0x0fff		/* Offset page aligned ?  */
 	jnz	2f			/* No -> EINVAL.  */
@@ -61,11 +60,6 @@ ENTRY(__mmap64)
 	la	%r2,0x60(%r15)		/* Load address of parameter list.  */
 	svc	SYS_ify(mmap2)		/* Do the system call trap.  */
 
-#ifndef __ASSUME_MMAP2_SYSCALL
-	chi	%r2,-ENOSYS
-	je	1f
-#endif
-
 	l	%r15,0(%r15)		/* Load back chain.  */
 	cfi_adjust_cfa_offset (-120)
 	lm	%r6,%r15,24(%r15)	/* Load registers.  */
@@ -78,31 +72,6 @@ ENTRY(__mmap64)
 	/* Successful; return the syscall's value.  */
 	br	%r14
 
-#endif
-
-#if !defined __ASSUME_MMAP2_SYSCALL || !defined __NR_mmap2
-1:	lm	%r0,%r1,216(%r15)	/* Load 64 bit offset.	*/
-	st	%r1,0x74(%r15)		/* Store lower word of offset.	*/
-	ltr	%r0,%r0			/* Offset > 2^32 ?  */
-	jnz	2f
-	alr	%r1,%r3			/* Add length to offset.  */
-	brc	3,2f			/* Carry -> EINVAL.  */
-
-	la	%r2,0x60(%r15)		/* Load address of parameter list.  */
-	svc	SYS_ify(mmap)	/* Do the system call trap.  */
-
-	l	%r15,0(%r15)		/* Load back chain.  */
-	lm	%r6,%r15,24(%r15)	/* Load registers.  */
-
-	/* Check gpr 2 for error.  */
-	lhi	%r0,-4096
-	clr	%r2,%r0
-	jnl	SYSCALL_ERROR_LABEL
-
-	/* Successful; return the syscall's value.  */
-	br	%r14
-#endif
-
 2:	lhi	%r2,-EINVAL
 	l	%r15,0(%r15)		/* Load back chain.  */
 	lm	%r6,%r15,24(%r15)	/* Load registers.  */
diff --git a/libc/sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c b/libc/sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c
index 05b81ecbc..480b92fcb 100644
--- a/libc/sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c
+++ b/libc/sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 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
@@ -18,7 +18,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <sysdep.h>
-#include <kernel-features.h>
 
 int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise);
 int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
@@ -37,7 +36,6 @@ struct fadvise64_64_layout
 int
 __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
 {
-#ifdef __NR_fadvise64_64
   struct fadvise64_64_layout parameters;
   INTERNAL_SYSCALL_DECL (err);
   
@@ -48,28 +46,7 @@ __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
   int ret = INTERNAL_SYSCALL (fadvise64_64, err, 1, &parameters);
   if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
     return 0;
-# ifndef __ASSUME_FADVISE64_64_SYSCALL
-  if (INTERNAL_SYSCALL_ERRNO (ret, err) != ENOSYS)
-# endif
-   return INTERNAL_SYSCALL_ERRNO (ret, err);
-#endif
-#ifndef __ASSUME_FADVISE64_64_SYSCALL
-# ifdef __NR_fadvise64
-  if (len != (off_t) len)
-    return EOVERFLOW;
-
-  INTERNAL_SYSCALL_DECL (err2);
-  int ret2 = INTERNAL_SYSCALL (fadvise64, err2, 5, fd,
-			       __LONG_LONG_PAIR ((long) (offset >> 32),
-						 (long) offset),
-			       (off_t) len, advise);
-  if (!INTERNAL_SYSCALL_ERROR_P (ret2, err2))
-    return 0;
-  return INTERNAL_SYSCALL_ERRNO (ret2, err2);
-# else
-  return ENOSYS;
-# endif
-#endif
+  return INTERNAL_SYSCALL_ERRNO (ret, err);
 }
 
 #include <shlib-compat.h>
diff --git a/libc/sysdeps/unix/sysv/linux/sparc/sparc64/time.c b/libc/sysdeps/unix/sysv/linux/sparc/sparc64/time.c
index 3a64ef195..509b580c5 100644
--- a/libc/sysdeps/unix/sysv/linux/sparc/sparc64/time.c
+++ b/libc/sysdeps/unix/sysv/linux/sparc/sparc64/time.c
@@ -1 +1 @@
-#include <sysdeps/unix/time.c>
+#include <sysdeps/posix/time.c>
diff --git a/libc/sysdeps/unix/sysv/linux/sparc/sparc64/xstat.c b/libc/sysdeps/unix/sysv/linux/sparc/sparc64/xstat.c
index 71a51ccd8..c3b00cb1d 100644
--- a/libc/sysdeps/unix/sysv/linux/sparc/sparc64/xstat.c
+++ b/libc/sysdeps/unix/sysv/linux/sparc/sparc64/xstat.c
@@ -1,10 +1 @@
-#include <kernel-features.h>
-
 #include "../../i386/xstat.c"
-
-#ifdef __NR_stat64
-# if __ASSUME_STAT64_SYSCALL == 0
-/* The variable is shared between all wrappers around *stat{,64} calls.  */
-int __have_no_stat64;
-# endif
-#endif
diff --git a/libc/sysdeps/unix/sysv/linux/sys/param.h b/libc/sysdeps/unix/sysv/linux/sys/param.h
deleted file mode 100644
index c419b8640..000000000
--- a/libc/sysdeps/unix/sysv/linux/sys/param.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* Copyright (C) 1995-1997,2000,2001,2003,2008,2011
-   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 _SYS_PARAM_H
-#define _SYS_PARAM_H	1
-
-#ifndef ARG_MAX
-# define __undef_ARG_MAX
-#endif
-
-#include <limits.h>
-#include <linux/limits.h>
-#include <linux/param.h>
-
-/* The kernel headers defines ARG_MAX.  The value is wrong, though.  */
-#ifdef __undef_ARG_MAX
-# undef ARG_MAX
-# undef __undef_ARG_MAX
-#endif
-
-/* BSD names for some <limits.h> values.  */
-
-#define	NBBY		CHAR_BIT
-#ifndef	NGROUPS
-# define NGROUPS	NGROUPS_MAX
-#endif
-#define	MAXSYMLINKS	20
-#define	CANBSIZ		MAX_CANON
-#define MAXPATHLEN	PATH_MAX
-/* The following are not really correct but it is a value we used for a
-   long time and which seems to be usable.  People should not use NOFILE
-   and NCARGS anyway.  */
-#define NOFILE		256
-#define	NCARGS		131072
-
-
-#include <sys/types.h>
-
-/* 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
-#ifdef __GNUC__
-# define roundup(x, y)	(__builtin_constant_p (y) && powerof2 (y)	      \
-			 ? (((x) + (y) - 1) & ~((y) - 1))		      \
-			 : ((((x) + ((y) - 1)) / (y)) * (y)))
-#else
-# define roundup(x, y)	((((x) + ((y) - 1)) / (y)) * (y))
-#endif
-#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
-
-
-#endif	/* sys/param.h */
diff --git a/libc/sysdeps/unix/sysv/linux/time.c b/libc/sysdeps/unix/sysv/linux/time.c
index f01d5753f..a73783e36 100644
--- a/libc/sysdeps/unix/sysv/linux/time.c
+++ b/libc/sysdeps/unix/sysv/linux/time.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2012 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
@@ -37,6 +37,6 @@ libc_hidden_def (time)
 
 #else
 
-# include <sysdeps/unix/time.c>
+# include <sysdeps/posix/time.c>
 
 #endif
diff --git a/libc/sysdeps/unix/sysv/linux/xstat64.c b/libc/sysdeps/unix/sysv/linux/xstat64.c
index c83d2b77e..dd0f99676 100644
--- a/libc/sysdeps/unix/sysv/linux/xstat64.c
+++ b/libc/sysdeps/unix/sysv/linux/xstat64.c
@@ -1,5 +1,5 @@
-/* xstat64 using old-style Unix stat system call.
-   Copyright (C) 1991,1995-2002,2003,2006 Free Software Foundation, Inc.
+/* xstat64 using Linux stat64 system call.
+   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
@@ -27,59 +27,18 @@
 
 #include <kernel-features.h>
 
-#if __ASSUME_STAT64_SYSCALL == 0
-# include <xstatconv.h>
-#endif
-
-#ifdef __NR_stat64
-# if  __ASSUME_STAT64_SYSCALL == 0
-/* The variable is shared between all wrappers around *stat64 calls.
-   This is the definition.  */
-int __have_no_stat64;
-# endif
-#endif
-
 /* Get information about the file NAME in BUF.  */
 
 int
 ___xstat64 (int vers, const char *name, struct stat64 *buf)
 {
   int result;
-#if __ASSUME_STAT64_SYSCALL > 0
   result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), CHECK_1 (buf));
-# if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
+#if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
   if (__builtin_expect (!result, 1) && buf->__st_ino != (__ino_t) buf->st_ino)
     buf->st_ino = buf->__st_ino;
-# endif
-  return result;
-#else
-  struct kernel_stat kbuf;
-# if defined __NR_stat64
-  if (! __have_no_stat64)
-    {
-      int saved_errno = errno;
-      result = INLINE_SYSCALL (stat64, 2, CHECK_STRING (name), CHECK_1 (buf));
-
-      if (result != -1 || errno != ENOSYS)
-	{
-#  if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0
-	  if (!result && buf->__st_ino != (__ino_t) buf->st_ino)
-	    buf->st_ino = buf->__st_ino;
-#  endif
-	  return result;
-	}
-
-      __set_errno (saved_errno);
-      __have_no_stat64 = 1;
-    }
-# endif
-
-  result = INLINE_SYSCALL (stat, 2, CHECK_STRING (name), __ptrvalue (&kbuf));
-  if (result == 0)
-    result = __xstat64_conv (vers, &kbuf, buf);
-
-  return result;
 #endif
+  return result;
 }
 
 
diff --git a/libc/sysdeps/unix/sysv/linux/xstatconv.c b/libc/sysdeps/unix/sysv/linux/xstatconv.c
index bf1dae08c..2e5a1a151 100644
--- a/libc/sysdeps/unix/sysv/linux/xstatconv.c
+++ b/libc/sysdeps/unix/sysv/linux/xstatconv.c
@@ -1,6 +1,5 @@
 /* Convert between the kernel's `struct stat' format, and libc's.
-   Copyright (C) 1991,1995-1997,2000,2002,2003,2007
-   Free Software Foundation, Inc.
+   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
@@ -32,7 +31,7 @@ struct kernel_stat;
 #include <string.h>
 
 
-#if !defined __ASSUME_STAT64_SYSCALL || defined XSTAT_IS_XSTAT64
+#ifdef XSTAT_IS_XSTAT64
 int
 __xstat_conv (int vers, struct kernel_stat *kbuf, void *ubuf)
 {