Remove pre-2.4 Linux kernel support.

37 files changed, 79 insertions, 1425 deletions

diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure
index fe61c111be..ef2f715782 100644
--- a/sysdeps/unix/sysv/linux/configure
+++ b/sysdeps/unix/sysv/linux/configure
@@ -284,25 +284,25 @@ test -n "$arch_minimum_kernel" ||
 case "$machine" in
   i386*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
   powerpc/powerpc32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
   powerpc/powerpc64)
     arch_minimum_kernel=2.4.21
     ;;
   s390/s390-32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.10
+    arch_minimum_kernel=2.4.0
     ;;
   s390/s390-64)
     libc_cv_gcc_unwind_find_fde=yes
     arch_minimum_kernel=2.4.0
     ;;
   sh*)
-    arch_minimum_kernel=2.3.99
+    arch_minimum_kernel=2.4.0
     libc_cv_gcc_unwind_find_fde=yes
     ;;
   sparc/sparc64*)
@@ -311,13 +311,10 @@ case "$machine" in
     ;;
   sparc*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
-    ;;
-  x86_64*)
     arch_minimum_kernel=2.4.0
     ;;
   *)
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
 esac
 if test -n "$minimum_kernel"; then
diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in
index 72fbe8422b..c3ec328b9e 100644
--- a/sysdeps/unix/sysv/linux/configure.in
+++ b/sysdeps/unix/sysv/linux/configure.in
@@ -41,25 +41,25 @@ test -n "$arch_minimum_kernel" ||
 case "$machine" in
   i386*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
   powerpc/powerpc32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
   powerpc/powerpc64)
     arch_minimum_kernel=2.4.21
     ;;
   s390/s390-32)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.10
+    arch_minimum_kernel=2.4.0
     ;;
   s390/s390-64)
     libc_cv_gcc_unwind_find_fde=yes
     arch_minimum_kernel=2.4.0
     ;;
   sh*)
-    arch_minimum_kernel=2.3.99
+    arch_minimum_kernel=2.4.0
     libc_cv_gcc_unwind_find_fde=yes
     ;;
   sparc/sparc64*)
@@ -68,13 +68,10 @@ case "$machine" in
     ;;
   sparc*)
     libc_cv_gcc_unwind_find_fde=yes
-    arch_minimum_kernel=2.2.0
-    ;;
-  x86_64*)
     arch_minimum_kernel=2.4.0
     ;;
   *)
-    arch_minimum_kernel=2.2.0
+    arch_minimum_kernel=2.4.0
     ;;
 esac
 if test -n "$minimum_kernel"; then
diff --git a/sysdeps/unix/sysv/linux/i386/chown.c b/sysdeps/unix/sysv/linux/i386/chown.c
index c8e53e4e00..5ea3cfd869 100644
--- a/sysdeps/unix/sysv/linux/i386/chown.c
+++ b/sysdeps/unix/sysv/linux/i386/chown.c
@@ -24,7 +24,6 @@
 #include <bp-checks.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
 /*
   In Linux 2.1.x the chown functions have been changed.  A new function lchown
@@ -41,44 +40,12 @@ extern int __chown_is_lchown (const char *__file, uid_t __owner,
 extern int __real_chown (const char *__file, uid_t __owner, gid_t __group);
 
 
-#ifdef __NR_chown32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_chown32 */
+/* Consider moving to syscalls.list.  */
 
 int
 __real_chown (const char *file, uid_t owner, gid_t group)
 {
-#if __ASSUME_32BITUIDS
   return INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-#else
-  /* !__ASSUME_32BITUIDS */
-# ifdef __NR_chown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-      int saved_errno = errno;
-
-      result = INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-      if (result == 0 || errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_chown32 */
-  if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
-#endif
 }
 
 
diff --git a/sysdeps/unix/sysv/linux/i386/fchown.c b/sysdeps/unix/sysv/linux/i386/fchown.c
index e520db9fea..4d76538b6c 100644
--- a/sysdeps/unix/sysv/linux/i386/fchown.c
+++ b/sysdeps/unix/sysv/linux/i386/fchown.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -22,46 +22,13 @@
 #include <sys/syscall.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
-#ifdef __NR_fchown32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_fchown32 */
+/* Consider moving to syscalls.list.  */
 
 int
 __fchown (int fd, uid_t owner, gid_t group)
 {
-#if  __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (fchown32, 3, fd, owner, group);
-#else
-# ifdef __NR_fchown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-      int saved_errno = errno;
-
-      result = INLINE_SYSCALL (fchown32, 3, fd, owner, group);
-      if (result == 0 || errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_fchown32 */
-
-  if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  return INLINE_SYSCALL (fchown, 3, fd, owner, group);
-#endif
 }
 
 weak_alias (__fchown, fchown)
diff --git a/sysdeps/unix/sysv/linux/i386/fchownat.c b/sysdeps/unix/sysv/linux/i386/fchownat.c
index 6b748d16ba..18c8f0b317 100644
--- a/sysdeps/unix/sysv/linux/i386/fchownat.c
+++ b/sysdeps/unix/sysv/linux/i386/fchownat.c
@@ -83,7 +83,6 @@ fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
       file = buf;
     }
 
-# if __ASSUME_32BITUIDS > 0
   INTERNAL_SYSCALL_DECL (err);
 
   if (flag & AT_SYMLINK_NOFOLLOW)
@@ -98,15 +97,6 @@ fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
       __atfct_seterrno (INTERNAL_SYSCALL_ERRNO (result, err), fd, buf);
       return -1;
     }
-# else
-  /* Don't inline the rest to avoid unnecessary code duplication.  */
-  if (flag & AT_SYMLINK_NOFOLLOW)
-    result = __lchown (file, owner, group);
-  else
-    result = __chown (file, owner, group);
-  if (result < 0)
-    __atfct_seterrno (errno, fd, buf);
-# endif
 
   return result;
 
diff --git a/sysdeps/unix/sysv/linux/i386/getegid.c b/sysdeps/unix/sysv/linux/i386/getegid.c
index 8461be9e42..41c4d08c8a 100644
--- a/sysdeps/unix/sysv/linux/i386/getegid.c
+++ b/sysdeps/unix/sysv/linux/i386/getegid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -20,41 +20,14 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
-#include <kernel-features.h>
 
-#ifdef __NR_getegid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids attribute_hidden;
-# endif
-#endif /* __NR_getegid32 */
+/* Consider moving to syscalls.list.  */
 
 gid_t
 __getegid (void)
 {
   INTERNAL_SYSCALL_DECL (err);
-#if __ASSUME_32BITUIDS > 0
-  /* No error checking.  */
   return INTERNAL_SYSCALL (getegid32, err, 0);
-#else
-# ifdef __NR_getegid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-
-      result = INTERNAL_SYSCALL (getegid32, err, 0);
-      if (! INTERNAL_SYSCALL_ERROR_P (result, err)
-	  || INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	return result;
-
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_getegid32 */
-
-  /* No error checking.  */
-  return INTERNAL_SYSCALL (getegid, err, 0);
-#endif
 }
 
 weak_alias (__getegid, getegid)
diff --git a/sysdeps/unix/sysv/linux/i386/geteuid.c b/sysdeps/unix/sysv/linux/i386/geteuid.c
index a0e4864dee..42e7686170 100644
--- a/sysdeps/unix/sysv/linux/i386/geteuid.c
+++ b/sysdeps/unix/sysv/linux/i386/geteuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -20,41 +20,14 @@
 
 #include <sysdep.h>
 #include <sys/syscall.h>
-#include <kernel-features.h>
 
-#ifdef __NR_geteuid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids attribute_hidden;
-# endif
-#endif /* __NR_geteuid32 */
+/* Consider moving to syscalls.list.  */
 
 uid_t
 __geteuid (void)
 {
   INTERNAL_SYSCALL_DECL (err);
-#if __ASSUME_32BITUIDS > 0
-  /* No error checking.  */
   return INTERNAL_SYSCALL (geteuid32, err, 0);
-#else
-# ifdef __NR_geteuid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-
-      result = INTERNAL_SYSCALL (geteuid32, err, 0);
-      if (! INTERNAL_SYSCALL_ERROR_P (result, err)
-	  || INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	return result;
-
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_geteuid32 */
-
-  /* No error checking.  */
-  return INTERNAL_SYSCALL (geteuid, err, 0);
-#endif
 }
 
 weak_alias (__geteuid, geteuid)
diff --git a/sysdeps/unix/sysv/linux/i386/getgid.c b/sysdeps/unix/sysv/linux/i386/getgid.c
index 30c4bc840b..e611fb494e 100644
--- a/sysdeps/unix/sysv/linux/i386/getgid.c
+++ b/sysdeps/unix/sysv/linux/i386/getgid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -21,41 +21,13 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
-#include <kernel-features.h>
-
-#ifdef __NR_getgid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids attribute_hidden;
-# endif
-#endif /* __NR_getgid32 */
+/* Consider moving to syscalls.list.  */
 
 gid_t
 __getgid (void)
 {
   INTERNAL_SYSCALL_DECL (err);
-#if __ASSUME_32BITUIDS > 0
-  /* No error checking.  */
   return INTERNAL_SYSCALL (getgid32, err, 0);
-#else
-# ifdef __NR_getgid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-
-      result = INTERNAL_SYSCALL (getgid32, err, 0);
-      if (! INTERNAL_SYSCALL_ERROR_P (result, err)
-	  || INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	return result;
-
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_getgid32 */
-
-  /* No error checking.  */
-  return INTERNAL_SYSCALL (getgid, err, 0);
-#endif
 }
 
 weak_alias (__getgid, getgid)
diff --git a/sysdeps/unix/sysv/linux/i386/getgroups.c b/sysdeps/unix/sysv/linux/i386/getgroups.c
index 97e1b0abef..e0871ec2d2 100644
--- a/sysdeps/unix/sysv/linux/i386/getgroups.c
+++ b/sysdeps/unix/sysv/linux/i386/getgroups.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1998, 2000, 2001, 2003 Free Software Foundation, Inc.
+/* 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
@@ -25,57 +25,16 @@
 #include <bp-checks.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
 
-#ifdef __NR_getgroups32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids attribute_hidden;
-# endif
-#endif /* __NR_getgroups32 */
+/* Consider moving to syscalls.list.  */
 
 /* For Linux we must convert the array of groups from the format that the
    kernel returns.  */
 int
 __getgroups (int n, gid_t *groups)
 {
-#if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (getgroups32, 2, n, CHECK_N (groups, n));
-#else
-  if (__builtin_expect (n, 1) < 0)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-  else
-    {
-# ifdef __NR_getgroups32
-      if (__libc_missing_32bit_uids <= 0)
-	{
-	  int result;
-	  int saved_errno = errno;
-
-	  result = INLINE_SYSCALL (getgroups32, 2, n, CHECK_N (groups, n));
-	  if (result != -1 || errno != ENOSYS)
-	    return result;
-
-	  __set_errno (saved_errno);
-	  __libc_missing_32bit_uids = 1;
-	}
-# endif /* __NR_getgroups32 */
-
-      int i, ngids;
-      __kernel_gid_t kernel_groups[n = MIN (n, __sysconf (_SC_NGROUPS_MAX))];
-
-      ngids = INLINE_SYSCALL (getgroups, 2, n, CHECK_N (kernel_groups, n));
-      if (n != 0 && ngids > 0)
-	for (i = 0; i < ngids; i++)
-	  (__ptrvalue (groups))[i] = kernel_groups[i];
-      return ngids;
-    }
-#endif
 }
 
 weak_alias (__getgroups, getgroups)
diff --git a/sysdeps/unix/sysv/linux/i386/getresgid.c b/sysdeps/unix/sysv/linux/i386/getresgid.c
index c01497e7e7..d9ce513b1d 100644
--- a/sysdeps/unix/sysv/linux/i386/getresgid.c
+++ b/sysdeps/unix/sysv/linux/i386/getresgid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,2000,2002,2003,2005,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -25,60 +25,13 @@
 #include <sys/syscall.h>
 #include <bp-checks.h>
 
-#include <kernel-features.h>
-
-#ifdef __NR_getresgid
-
-# ifdef __NR_getresgid32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-#  endif
-# endif /* __NR_getresgid32 */
-
+/* Consider moving to syscalls.list.  */
 
 int
 __getresgid (gid_t *rgid, gid_t *egid, gid_t *sgid)
 {
-# if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (getresgid32, 3, CHECK_1 (rgid),
 			 CHECK_1 (egid), CHECK_1 (sgid));
-# else
-  __kernel_gid_t k_rgid, k_egid, k_sgid;
-  int result;
-#  ifdef __NR_getresgid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int r;
-      int saved_errno = errno;
-
-      r = INLINE_SYSCALL (getresgid32, 3, CHECK_1 (rgid),
-			  CHECK_1 (egid), CHECK_1 (sgid));
-      if (r == 0 || errno != ENOSYS)
-	return r;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_getresgid32 */
-
-  result = INLINE_SYSCALL (getresgid, 3, __ptrvalue (&k_rgid),
-			   __ptrvalue (&k_egid), __ptrvalue (&k_sgid));
-
-  if (result == 0)
-    {
-      *rgid = (gid_t) k_rgid;
-      *egid = (gid_t) k_egid;
-      *sgid = (gid_t) k_sgid;
-    }
-
-  return result;
-# endif
 }
 libc_hidden_def (__getresgid)
 weak_alias (__getresgid, getresgid)
-
-#else
-# include <posix/getresgid.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/i386/getresuid.c b/sysdeps/unix/sysv/linux/i386/getresuid.c
index cbad2d3da5..f9c3180fb1 100644
--- a/sysdeps/unix/sysv/linux/i386/getresuid.c
+++ b/sysdeps/unix/sysv/linux/i386/getresuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,2000,2002,2003,2005,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -25,59 +25,13 @@
 #include <sys/syscall.h>
 #include <bp-checks.h>
 
-#include <kernel-features.h>
-
-#ifdef __NR_getresuid
-
-# ifdef __NR_getresuid32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-#  endif
-# endif /* __NR_getresuid32 */
+/* Consider moving to syscalls.list.  */
 
 int
 __getresuid (uid_t *ruid, uid_t *euid, uid_t *suid)
 {
-# if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (getresuid32, 3, CHECK_1 (ruid),
 			 CHECK_1 (euid), CHECK_1 (suid));
-# else
-  __kernel_uid_t k_ruid, k_euid, k_suid;
-  int result;
-#  ifdef __NR_getresuid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int r;
-      int saved_errno = errno;
-
-      r = INLINE_SYSCALL (getresuid32, 3, CHECK_1 (ruid),
-			  CHECK_1 (euid), CHECK_1 (suid));
-      if (r == 0 || errno != ENOSYS)
-	return r;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_getresuid32 */
-
-  result = INLINE_SYSCALL (getresuid, 3, __ptrvalue (&k_ruid),
-			   __ptrvalue (&k_euid), __ptrvalue (&k_suid));
-
-  if (result == 0)
-    {
-      *ruid = (uid_t) k_ruid;
-      *euid = (uid_t) k_euid;
-      *suid = (uid_t) k_suid;
-    }
-
-  return result;
-# endif
 }
 libc_hidden_def (__getresuid)
 weak_alias (__getresuid, getresuid)
-
-#else
-# include <posix/getresuid.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/i386/getuid.c b/sysdeps/unix/sysv/linux/i386/getuid.c
index 6bbc74d4c5..67d63a416b 100644
--- a/sysdeps/unix/sysv/linux/i386/getuid.c
+++ b/sysdeps/unix/sysv/linux/i386/getuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -21,44 +21,13 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 
-#include <kernel-features.h>
-
-#ifdef __NR_getuid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  This is the definition.
-   -1 if libc does not know yet whether kernel has 32bit uids or not.
-   0 if it does have them.
-   1 if it does not have them.  */
-int __libc_missing_32bit_uids attribute_hidden = -1;
-# endif
-#endif /* __NR_getuid32 */
+/* Consider moving to syscalls.list.  */
 
 uid_t
 __getuid (void)
 {
   INTERNAL_SYSCALL_DECL (err);
-#if __ASSUME_32BITUIDS > 0
-  /* No error checking.  */
   return INTERNAL_SYSCALL (getuid32, err, 0);
-#else
-# ifdef __NR_getuid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-
-      result = INTERNAL_SYSCALL (getuid32, err, 0);
-      if (! INTERNAL_SYSCALL_ERROR_P (result, err)
-	  || INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	return result;
-
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_getuid32 */
-
-  /* No error checking.  */
-  return INTERNAL_SYSCALL (getuid, err, 0);
-#endif
 }
 
 weak_alias (__getuid, getuid)
diff --git a/sysdeps/unix/sysv/linux/i386/lchown.c b/sysdeps/unix/sysv/linux/i386/lchown.c
index 2184c28600..6190d02a6f 100644
--- a/sysdeps/unix/sysv/linux/i386/lchown.c
+++ b/sysdeps/unix/sysv/linux/i386/lchown.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000,2003,2005,2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -23,51 +23,13 @@
 #include <bp-checks.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
-#ifdef __NR_lchown
-# ifdef __NR_lchown32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-#  endif
-# endif /* __NR_lchown32 */
+/* Consider moving to syscalls.list.  */
 
 int
 __lchown (const char *file, uid_t owner, gid_t group)
 {
-# if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (lchown32, 3, CHECK_STRING (file), owner, group);
-# else
-#  ifdef __NR_lchown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-      int saved_errno = errno;
-
-      result = INLINE_SYSCALL (lchown32, 3, CHECK_STRING (file), owner, group);
-      if (result == 0 || errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_lchown32 */
-
-  if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  return INLINE_SYSCALL (lchown, 3, CHECK_STRING (file), owner, group);
-# endif
 }
 
 weak_alias (__lchown, lchown)
-
-#else
-# include <io/lchown.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/i386/msgctl.c b/sysdeps/unix/sysv/linux/i386/msgctl.c
index fa5a82fa38..2125ae192c 100644
--- a/sysdeps/unix/sysv/linux/i386/msgctl.c
+++ b/sysdeps/unix/sysv/linux/i386/msgctl.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995,1997,1998,2000,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
@@ -25,7 +25,6 @@
 #include <sys/syscall.h>
 #include <bp-checks.h>
 
-#include <kernel-features.h>
 #include <shlib-compat.h>
 
 struct __old_msqid_ds
@@ -52,14 +51,6 @@ int __old_msgctl (int, int, struct __old_msqid_ds *);
 #endif
 int __new_msgctl (int, int, struct msqid_ds *);
 
-#ifdef __NR_getuid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif
-
 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
 int
 attribute_compat_text_section
@@ -74,85 +65,8 @@ compat_symbol (libc, __old_msgctl, msgctl, GLIBC_2_0);
 int
 __new_msgctl (int msqid, int cmd, struct msqid_ds *buf)
 {
-#if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
 			 msqid, cmd | __IPC_64, 0, CHECK_1 (buf));
-#else
-  switch (cmd) {
-    case MSG_STAT:
-    case IPC_STAT:
-    case IPC_SET:
-      break;
-    default:
-      return INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
-			     msqid, cmd, 0, CHECK_1 (buf));
-  }
-
-  {
-    int result;
-    struct __old_msqid_ds old;
-
-#ifdef __NR_getuid32
-    if (__libc_missing_32bit_uids <= 0)
-      {
-	if (__libc_missing_32bit_uids < 0)
-	  {
-	    int save_errno = errno;
-
-	    /* Test presence of new IPC by testing for getuid32 syscall.  */
-	    result = INLINE_SYSCALL (getuid32, 0);
-	    if (result == -1 && errno == ENOSYS)
-	      __libc_missing_32bit_uids = 1;
-	    else
-	      __libc_missing_32bit_uids = 0;
-	    __set_errno(save_errno);
-	  }
-	if (__libc_missing_32bit_uids <= 0)
-	  {
-	    result = INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
-				     msqid, cmd | __IPC_64, 0, CHECK_1 (buf));
-	    return result;
-	  }
-      }
-#endif
-    if (cmd == IPC_SET)
-      {
-	old.msg_perm.uid = buf->msg_perm.uid;
-	old.msg_perm.gid = buf->msg_perm.gid;
-	old.msg_perm.mode = buf->msg_perm.mode;
-	old.msg_qbytes = buf->msg_qbytes;
-	if (old.msg_perm.uid != buf->msg_perm.uid ||
-	    old.msg_perm.gid != buf->msg_perm.gid ||
-	    old.msg_qbytes != buf->msg_qbytes)
-	  {
-	    __set_errno (EINVAL);
-	    return -1;
-	  }
-      }
-    result = INLINE_SYSCALL (ipc, 5, IPCOP_msgctl,
-			     msqid, cmd, 0, __ptrvalue (&old));
-    if (result != -1 && cmd != IPC_SET)
-      {
-	memset(buf, 0, sizeof(*buf));
-	buf->msg_perm.__key = old.msg_perm.__key;
-	buf->msg_perm.uid = old.msg_perm.uid;
-	buf->msg_perm.gid = old.msg_perm.gid;
-	buf->msg_perm.cuid = old.msg_perm.cuid;
-	buf->msg_perm.cgid = old.msg_perm.cgid;
-	buf->msg_perm.mode = old.msg_perm.mode;
-	buf->msg_perm.__seq = old.msg_perm.__seq;
-	buf->msg_stime = old.msg_stime;
-	buf->msg_rtime = old.msg_rtime;
-	buf->msg_ctime = old.msg_ctime;
-	buf->__msg_cbytes = old.__msg_cbytes;
-	buf->msg_qnum = old.msg_qnum;
-	buf->msg_qbytes = old.msg_qbytes;
-	buf->msg_lspid = old.msg_lspid;
-	buf->msg_lrpid = old.msg_lrpid;
-      }
-    return result;
-  }
-#endif
 }
 
 versioned_symbol (libc, __new_msgctl, msgctl, GLIBC_2_2);
diff --git a/sysdeps/unix/sysv/linux/i386/semctl.c b/sysdeps/unix/sysv/linux/i386/semctl.c
index 0c4ad89f89..5e2d948059 100644
--- a/sysdeps/unix/sysv/linux/i386/semctl.c
+++ b/sysdeps/unix/sysv/linux/i386/semctl.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1995,1997,1998,2000,2003,2004,2006
-	Free Software Foundation, Inc.
+/* Copyright (C) 1995-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
@@ -26,7 +25,6 @@
 #include <string.h>
 #include <sys/syscall.h>
 
-#include <kernel-features.h>
 #include <shlib-compat.h>
 
 struct __old_semid_ds
@@ -54,14 +52,6 @@ union semun
 #include <bp-checks.h>
 #include <bp-semctl.h>		/* definition of CHECK_SEMCTL needs union semum */
 
-#ifdef __NR_getuid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif
-
 /* Return identifier for array of NSEMS semaphores associated with
    KEY.  */
 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
@@ -103,82 +93,8 @@ __new_semctl (int semid, int semnum, int cmd, ...)
 
   va_end (ap);
 
-#if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd | __IPC_64,
 			 CHECK_SEMCTL (&arg, semid, cmd | __IPC_64));
-#else
-  switch (cmd) {
-    case SEM_STAT:
-    case IPC_STAT:
-    case IPC_SET:
-      break;
-    default:
-      return INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd,
-			     CHECK_SEMCTL (&arg, semid, cmd));
-  }
-
-  {
-    int result;
-    struct __old_semid_ds old;
-    struct semid_ds *buf;
-
-#ifdef __NR_getuid32
-    if (__libc_missing_32bit_uids <= 0)
-      {
-	if (__libc_missing_32bit_uids < 0)
-	  {
-	    int save_errno = errno;
-
-	    /* Test presence of new IPC by testing for getuid32 syscall.  */
-	    result = INLINE_SYSCALL (getuid32, 0);
-	    if (result == -1 && errno == ENOSYS)
-	      __libc_missing_32bit_uids = 1;
-	    else
-	      __libc_missing_32bit_uids = 0;
-	    __set_errno(save_errno);
-	  }
-	if (__libc_missing_32bit_uids <= 0)
-	  {
-	    result = INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd | __IPC_64,
-				     CHECK_SEMCTL (&arg, semid, cmd | __IPC_64));
-	    return result;
-	  }
-      }
-#endif
-
-    buf = arg.buf;
-    arg.__old_buf = &old;
-    if (cmd == IPC_SET)
-      {
-	old.sem_perm.uid = buf->sem_perm.uid;
-	old.sem_perm.gid = buf->sem_perm.gid;
-	old.sem_perm.mode = buf->sem_perm.mode;
-	if (old.sem_perm.uid != buf->sem_perm.uid ||
-	    old.sem_perm.gid != buf->sem_perm.gid)
-	  {
-	    __set_errno (EINVAL);
-	    return -1;
-	  }
-      }
-    result = INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd,
-			     CHECK_SEMCTL (&arg, semid, cmd));
-    if (result != -1 && cmd != IPC_SET)
-      {
-	memset(buf, 0, sizeof(*buf));
-	buf->sem_perm.__key = old.sem_perm.__key;
-	buf->sem_perm.uid = old.sem_perm.uid;
-	buf->sem_perm.gid = old.sem_perm.gid;
-	buf->sem_perm.cuid = old.sem_perm.cuid;
-	buf->sem_perm.cgid = old.sem_perm.cgid;
-	buf->sem_perm.mode = old.sem_perm.mode;
-	buf->sem_perm.__seq = old.sem_perm.__seq;
-	buf->sem_otime = old.sem_otime;
-	buf->sem_ctime = old.sem_ctime;
-	buf->sem_nsems = old.sem_nsems;
-      }
-    return result;
-  }
-#endif
 }
 
 versioned_symbol (libc, __new_semctl, semctl, GLIBC_2_2);
diff --git a/sysdeps/unix/sysv/linux/i386/setegid.c b/sysdeps/unix/sysv/linux/i386/setegid.c
index e0b82ccf94..20170e327e 100644
--- a/sysdeps/unix/sysv/linux/i386/setegid.c
+++ b/sysdeps/unix/sysv/linux/i386/setegid.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1995-1998,2000,2002,2003,2004,2006
-	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
@@ -19,13 +18,8 @@
 #include <errno.h>
 #include <unistd.h>
 #include <setxid.h>
-#include <kernel-features.h>
 
 
-#ifdef __NR_setresgid
-extern int __setresgid (uid_t rgid, uid_t egid, uid_t sgid);
-#endif
-
 int
 setegid (gid)
      gid_t gid;
@@ -38,23 +32,7 @@ setegid (gid)
       return -1;
     }
 
-#if __ASSUME_32BITUIDS > 0
   result = INLINE_SETXID_SYSCALL (setresgid32, 3, -1, gid, -1);
-#else
-  /* First try the syscall.  */
-# ifdef __NR_setresgid
-  result = __setresgid (-1, gid, -1);
-#  if __ASSUME_SETRESGID_SYSCALL > 0
-  if (0)
-#  else
-  if (result == -1 && errno == ENOSYS)
-#  endif
-    /* No system call available.  Use emulation.  This may not work
-       since `setregid' also sets the saved user ID when GID is not
-       equal to the real user ID, making it impossible to switch back.  */
-# endif
-    result = __setregid (-1, gid);
-#endif
 
   return result;
 }
diff --git a/sysdeps/unix/sysv/linux/i386/seteuid.c b/sysdeps/unix/sysv/linux/i386/seteuid.c
index af3231d84b..d41e51b294 100644
--- a/sysdeps/unix/sysv/linux/i386/seteuid.c
+++ b/sysdeps/unix/sysv/linux/i386/seteuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,2000,2002,2003,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -18,13 +18,8 @@
 #include <errno.h>
 #include <unistd.h>
 #include <setxid.h>
-#include <kernel-features.h>
 
 
-#ifdef __NR_setresuid
-extern int __setresuid (uid_t ruid, uid_t euid, uid_t suid);
-#endif
-
 int
 seteuid (uid_t uid)
 {
@@ -36,23 +31,7 @@ seteuid (uid_t uid)
       return -1;
     }
 
-#if __ASSUME_32BITUIDS > 0
   result = INLINE_SETXID_SYSCALL (setresuid32, 3, -1, uid, -1);
-#else
-  /* First try the syscall.  */
-# ifdef __NR_setresuid
-  result = __setresuid (-1, uid, -1);
-#  if __ASSUME_SETRESUID_SYSCALL > 0
-  if (0)
-#  else
-  if (result == -1 && errno == ENOSYS)
-#  endif
-    /* No system call available.  Use emulation.  This may not work
-       since `setreuid' also sets the saved user ID when UID is not
-       equal to the real user ID, making it impossible to switch back.  */
-# endif
-    result = __setreuid (-1, uid);
-#endif
 
   return result;
 }
diff --git a/sysdeps/unix/sysv/linux/i386/setfsgid.c b/sysdeps/unix/sysv/linux/i386/setfsgid.c
index 12c66c5b6e..fe5fd86596 100644
--- a/sysdeps/unix/sysv/linux/i386/setfsgid.c
+++ b/sysdeps/unix/sysv/linux/i386/setfsgid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 2000, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -22,48 +22,12 @@
 #include <sysdep.h>
 #include <sys/syscall.h>
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
-
-#ifdef __NR_setfsgid
-
-# ifdef __NR_setfsgid32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids attribute_hidden;
-#  endif
-# endif /* __NR_setfsgid32 */
+/* Consider moving to syscalls.list.  */
 
 int
 setfsgid (gid_t gid)
 {
   INTERNAL_SYSCALL_DECL (err);
-# if __ASSUME_32BITUIDS > 0
-  /* No error checking. */
   return INTERNAL_SYSCALL (setfsgid32, err, 1, gid);
-# else
-#  ifdef __NR_setfsgid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-
-      result = INTERNAL_SYSCALL (setfsgid32, err, 1, gid);
-      if (! INTERNAL_SYSCALL_ERROR_P (result, err)
-	  || INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	return result;
-
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_setfsgid32 */
-  if (gid != (gid_t) ((__kernel_gid_t) gid))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  /* No error checking. */
-  return INTERNAL_SYSCALL (setfsgid, err, 1, gid);
-# endif
 }
-#endif
diff --git a/sysdeps/unix/sysv/linux/i386/setfsuid.c b/sysdeps/unix/sysv/linux/i386/setfsuid.c
index 5194ce1edc..3e0dc97289 100644
--- a/sysdeps/unix/sysv/linux/i386/setfsuid.c
+++ b/sysdeps/unix/sysv/linux/i386/setfsuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 2000, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -23,48 +23,12 @@
 #include <sys/syscall.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
-#ifdef __NR_setfsuid
-
-# ifdef __NR_setfsuid32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids attribute_hidden;
-#  endif
-# endif /* __NR_setfsuid32 */
+/* Consider moving to syscalls.list.  */
 
 int
 setfsuid (uid_t uid)
 {
   INTERNAL_SYSCALL_DECL (err);
-# if  __ASSUME_32BITUIDS > 0
-  /* No error checking. */
   return INTERNAL_SYSCALL (setfsuid32, err, 1, uid);
-# else
-#  ifdef __NR_setfsuid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-
-      result = INTERNAL_SYSCALL (setfsuid32, err, 1, uid);
-      if (! INTERNAL_SYSCALL_ERROR_P (result, err)
-	  || INTERNAL_SYSCALL_ERRNO (result, err) != ENOSYS)
-	return result;
-
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_setfsuid32 */
-
-  if (uid != (uid_t) ((__kernel_uid_t) uid))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  /* No error checking. */
-  return INTERNAL_SYSCALL (setfsuid, err, 1, uid);
-# endif
 }
-#endif
diff --git a/sysdeps/unix/sysv/linux/i386/setgid.c b/sysdeps/unix/sysv/linux/i386/setgid.c
index dacc41dab2..b067368209 100644
--- a/sysdeps/unix/sysv/linux/i386/setgid.c
+++ b/sysdeps/unix/sysv/linux/i386/setgid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998, 2000, 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -19,54 +19,13 @@
 #include <unistd.h>
 #include <setxid.h>
 #include <linux/posix_types.h>
-#include <kernel-features.h>
-
-
-#ifdef __NR_setgid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_setgid32 */
 
 int
 __setgid (gid_t gid)
 {
   int result;
 
-#if __ASSUME_32BITUIDS > 0
   result = INLINE_SETXID_SYSCALL (setgid32, 1, gid);
-#else
-# ifdef __NR_setgid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int saved_errno = errno;
-
-      result = INLINE_SETXID_SYSCALL (setgid32, 1, gid);
-
-      if (result == 0)
-	goto out;
-      if (errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_setgid32 */
-
-  if (gid == (gid_t) ~0
-      || gid != (gid_t) ((__kernel_gid_t) gid))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  result = INLINE_SETXID_SYSCALL (setgid, 1, gid);
-# ifdef __NR_setgid32
- out:
-# endif
-#endif
 
   return result;
 }
diff --git a/sysdeps/unix/sysv/linux/i386/setgroups.c b/sysdeps/unix/sysv/linux/i386/setgroups.c
index dd74cd2864..73b341ac53 100644
--- a/sysdeps/unix/sysv/linux/i386/setgroups.c
+++ b/sysdeps/unix/sysv/linux/i386/setgroups.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1997,1998,2000,2002,2004,2006,2011
-   Free Software Foundation, Inc.
+/* 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
@@ -27,16 +26,6 @@
 
 #include <setxid.h>
 #include <linux/posix_types.h>
-#include <kernel-features.h>
-
-
-#ifdef __NR_setgroups32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_setgroups32 */
 
 /* Set the group set for the current user to GROUPS (N of them).  For
    Linux we must convert the array of groups into the format that the
@@ -44,47 +33,6 @@ extern int __libc_missing_32bit_uids;
 int
 setgroups (size_t n, const gid_t *groups)
 {
-#if __ASSUME_32BITUIDS > 0
   return INLINE_SETXID_SYSCALL (setgroups32, 2, n, CHECK_N (groups, n));
-#else
-  if (n > (size_t) __sysconf (_SC_NGROUPS_MAX))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-  else
-    {
-      size_t i;
-      __kernel_gid_t kernel_groups[n];
-
-# ifdef __NR_setgroups32
-      if (__libc_missing_32bit_uids <= 0)
-	{
-	  int result;
-	  int saved_errno = errno;
-
-	  result = INLINE_SETXID_SYSCALL (setgroups32, 2, n,
-					  CHECK_N (groups, n));
-	  if (result == 0 || errno != ENOSYS)
-	    return result;
-
-	  __set_errno (saved_errno);
-	  __libc_missing_32bit_uids = 1;
-	}
-# endif /* __NR_setgroups32 */
-      for (i = 0; i < n; i++)
-	{
-	  kernel_groups[i] = (__ptrvalue (groups))[i];
-	  if (groups[i] != (gid_t) ((__kernel_gid_t) groups[i]))
-	    {
-	      __set_errno (EINVAL);
-	      return -1;
-	    }
-	}
-
-      return INLINE_SETXID_SYSCALL (setgroups, 2, n,
-				    CHECK_N (kernel_groups, n));
-    }
-#endif
 }
 libc_hidden_def (setgroups)
diff --git a/sysdeps/unix/sysv/linux/i386/setregid.c b/sysdeps/unix/sysv/linux/i386/setregid.c
index b48baf7b46..d2a1d55d50 100644
--- a/sysdeps/unix/sysv/linux/i386/setregid.c
+++ b/sysdeps/unix/sysv/linux/i386/setregid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,2000,2003,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -19,53 +19,13 @@
 #include <unistd.h>
 #include <setxid.h>
 #include <linux/posix_types.h>
-#include <kernel-features.h>
-
-
-#ifdef __NR_setregid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_setregid32 */
 
 int
 __setregid (gid_t rgid, gid_t egid)
 {
   int result;
 
-#if __ASSUME_32BITUIDS > 0
   result = INLINE_SETXID_SYSCALL (setregid32, 2, rgid, egid);
-#else
-# ifdef __NR_setregid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int saved_errno = errno;
-
-      result = INLINE_SETXID_SYSCALL (setregid32, 2, rgid, egid);
-
-      if (result == 0)
-	goto out;
-      if (errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_setregid32 */
-  if (((rgid + 1) > (gid_t) ((__kernel_gid_t) -1U))
-      || ((egid + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  result = INLINE_SETXID_SYSCALL (setregid, 2, rgid, egid);
-# ifdef __NR_setregid32
- out:
-# endif
-#endif
 
   return result;
 }
diff --git a/sysdeps/unix/sysv/linux/i386/setresgid.c b/sysdeps/unix/sysv/linux/i386/setresgid.c
index 24a0dd8eb7..569745bef2 100644
--- a/sysdeps/unix/sysv/linux/i386/setresgid.c
+++ b/sysdeps/unix/sysv/linux/i386/setresgid.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1998,2000,2002,2003,2004,2005,2006
-	Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -20,56 +19,14 @@
 #include <unistd.h>
 #include <setxid.h>
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
 
-#if defined __NR_setresgid || defined __NR_setresgid32
-
-# ifdef __NR_setresgid32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-#  endif
-# endif /* __NR_setresgid32 */
-
 int
 __setresgid (gid_t rgid, gid_t egid, gid_t sgid)
 {
   int result;
 
-# if __ASSUME_32BITUIDS > 0 || !defined __NR_setresgid
   result = INLINE_SETXID_SYSCALL (setresgid32, 3, rgid, egid, sgid);
-# else
-#  ifdef __NR_setresgid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int saved_errno = errno;
-
-      result = INLINE_SETXID_SYSCALL (setresgid32, 3, rgid, egid, sgid);
-      if (result == 0)
-	goto out;
-      if (errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_setresgid32 */
-
-  if (((rgid + 1) > (gid_t) ((__kernel_gid_t) -1U))
-      || ((egid + 1) > (gid_t) ((__kernel_gid_t) -1U))
-      || ((sgid + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  result = INLINE_SETXID_SYSCALL (setresgid, 3, rgid, egid, sgid);
-#  ifdef __NR_setresgid32
- out:
-#  endif
-# endif
 
   return result;
 }
@@ -77,9 +34,3 @@ libc_hidden_def (__setresgid)
 #ifndef __setresgid
 weak_alias (__setresgid, setresgid)
 #endif
-
-#else
-
-#include <posix/setresgid.c>
-
-#endif
diff --git a/sysdeps/unix/sysv/linux/i386/setresuid.c b/sysdeps/unix/sysv/linux/i386/setresuid.c
index 1015dd74d9..33e464b7f4 100644
--- a/sysdeps/unix/sysv/linux/i386/setresuid.c
+++ b/sysdeps/unix/sysv/linux/i386/setresuid.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1998,2000,2002,2003,2004,2005,2006
-	Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -20,56 +19,14 @@
 #include <unistd.h>
 #include <setxid.h>
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
 
-#if defined __NR_setresuid || defined __NR_setresuid32
-
-# ifdef __NR_setresuid32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-#  endif
-# endif /* __NR_setresuid32 */
-
 int
 __setresuid (uid_t ruid, uid_t euid, uid_t suid)
 {
   int result;
 
-# if __ASSUME_32BITUIDS > 0 || !defined __NR_setresuid
   result = INLINE_SETXID_SYSCALL (setresuid32, 3, ruid, euid, suid);
-# else
-#  ifdef __NR_setresuid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int saved_errno = errno;
-
-      result = INLINE_SETXID_SYSCALL (setresuid32, 3, ruid, euid, suid);
-      if (result == 0)
-	goto out;
-      if (errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_setresuid32 */
-
-  if (((ruid + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((euid + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((suid + 1) > (uid_t) ((__kernel_uid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  result = INLINE_SETXID_SYSCALL (setresuid, 3, ruid, euid, suid);
-#  ifdef __NR_setresuid32
- out:
-#  endif
-# endif
 
   return result;
 }
@@ -77,9 +34,3 @@ libc_hidden_def (__setresuid)
 #ifndef __setresuid
 weak_alias (__setresuid, setresuid)
 #endif
-
-#else
-
-#include <posix/setresuid.c>
-
-#endif
diff --git a/sysdeps/unix/sysv/linux/i386/setreuid.c b/sysdeps/unix/sysv/linux/i386/setreuid.c
index 7c8b4af9dc..e17455f8c8 100644
--- a/sysdeps/unix/sysv/linux/i386/setreuid.c
+++ b/sysdeps/unix/sysv/linux/i386/setreuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,2000,2003,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -19,53 +19,14 @@
 #include <unistd.h>
 #include <setxid.h>
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
 
-#ifdef __NR_setreuid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_setreuid32 */
-
 int
 __setreuid (uid_t ruid, uid_t euid)
 {
   int result;
 
-#if __ASSUME_32BITUIDS > 0
   result = INLINE_SETXID_SYSCALL (setreuid32, 2, ruid, euid);
-#else
-# ifdef __NR_setreuid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int saved_errno = errno;
-
-      result = INLINE_SETXID_SYSCALL (setreuid32, 2, ruid, euid);
-
-      if (result == 0)
-	goto out;
-      if (errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_setreuid32 */
-  if (((ruid + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((euid + 1) > (uid_t) ((__kernel_uid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  result = INLINE_SETXID_SYSCALL (setreuid, 2, ruid, euid);
-# ifdef __NR_setreuid32
- out:
-# endif
-#endif
 
   return result;
 }
diff --git a/sysdeps/unix/sysv/linux/i386/setuid.c b/sysdeps/unix/sysv/linux/i386/setuid.c
index 54ed9ba34a..cab40671e7 100644
--- a/sysdeps/unix/sysv/linux/i386/setuid.c
+++ b/sysdeps/unix/sysv/linux/i386/setuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,2000,2003,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -19,53 +19,14 @@
 #include <unistd.h>
 #include <setxid.h>
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
 
-#ifdef __NR_setuid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_setuid32 */
-
 int
 __setuid (uid_t uid)
 {
   int result;
 
-#if __ASSUME_32BITUIDS > 0 && defined __NR_setuid32
   result = INLINE_SETXID_SYSCALL (setuid32, 1, uid);
-#else
-# ifdef __NR_setuid32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int saved_errno = errno;
-
-      result = INLINE_SETXID_SYSCALL (setuid32, 1, uid);
-      if (result == 0)
-	goto out;
-      if (errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_setuid32 */
-
-  if (uid == (uid_t) ~0
-      || uid != (uid_t) ((__kernel_uid_t) uid))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  result = INLINE_SETXID_SYSCALL (setuid, 1, uid);
-# ifdef __NR_setuid32
- out:
-# endif
-#endif
 
   return result;
 }
diff --git a/sysdeps/unix/sysv/linux/i386/shmctl.c b/sysdeps/unix/sysv/linux/i386/shmctl.c
index fb38ed79cd..dd2167d9a7 100644
--- a/sysdeps/unix/sysv/linux/i386/shmctl.c
+++ b/sysdeps/unix/sysv/linux/i386/shmctl.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995,1997,1998,2000,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
@@ -26,7 +26,6 @@
 #include <bits/wordsize.h>
 #include <bp-checks.h>
 
-#include <kernel-features.h>
 #include <shlib-compat.h>
 
 struct __old_shmid_ds
@@ -53,14 +52,6 @@ struct __old_shminfo
   int shmall;
 };
 
-#ifdef __NR_getuid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif
-
 /* Provide operations to control over shared memory segments.  */
 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
 int __old_shmctl (int, int, struct __old_shmid_ds *);
@@ -81,97 +72,8 @@ compat_symbol (libc, __old_shmctl, shmctl, GLIBC_2_0);
 int
 __new_shmctl (int shmid, int cmd, struct shmid_ds *buf)
 {
-#if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl,
 			 shmid, cmd | __IPC_64, 0, CHECK_1 (buf));
-#else
-  switch (cmd) {
-    case SHM_STAT:
-    case IPC_STAT:
-    case IPC_SET:
-# if __WORDSIZE != 32
-    case IPC_INFO:
-# endif
-      break;
-    default:
-      return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl,
-			     shmid, cmd, 0, CHECK_1 (buf));
-  }
-
-  {
-    struct __old_shmid_ds old;
-    int result;
-
-# ifdef __NR_getuid32
-    if (__libc_missing_32bit_uids <= 0)
-      {
-	if (__libc_missing_32bit_uids < 0)
-	  {
-	    int save_errno = errno;
-
-	    /* Test presence of new IPC by testing for getuid32 syscall.  */
-	    result = INLINE_SYSCALL (getuid32, 0);
-	    if (result == -1 && errno == ENOSYS)
-	      __libc_missing_32bit_uids = 1;
-	    else
-	      __libc_missing_32bit_uids = 0;
-	    __set_errno(save_errno);
-	  }
-	if (__libc_missing_32bit_uids <= 0)
-	  return INLINE_SYSCALL (ipc, 5, IPCOP_shmctl,
-				 shmid, cmd | __IPC_64, 0, CHECK_1 (buf));
-      }
-# endif
-
-    if (cmd == IPC_SET)
-      {
-	old.shm_perm.uid = buf->shm_perm.uid;
-	old.shm_perm.gid = buf->shm_perm.gid;
-	old.shm_perm.mode = buf->shm_perm.mode;
-	if (old.shm_perm.uid != buf->shm_perm.uid ||
-	    old.shm_perm.gid != buf->shm_perm.gid)
-	  {
-	    __set_errno (EINVAL);
-	    return -1;
-	  }
-      }
-    result = INLINE_SYSCALL (ipc, 5, IPCOP_shmctl,
-			     shmid, cmd, 0, __ptrvalue (&old));
-    if (result != -1 && (cmd == SHM_STAT || cmd == IPC_STAT))
-      {
-	memset(buf, 0, sizeof(*buf));
-	buf->shm_perm.__key = old.shm_perm.__key;
-	buf->shm_perm.uid = old.shm_perm.uid;
-	buf->shm_perm.gid = old.shm_perm.gid;
-	buf->shm_perm.cuid = old.shm_perm.cuid;
-	buf->shm_perm.cgid = old.shm_perm.cgid;
-	buf->shm_perm.mode = old.shm_perm.mode;
-	buf->shm_perm.__seq = old.shm_perm.__seq;
-	buf->shm_atime = old.shm_atime;
-	buf->shm_dtime = old.shm_dtime;
-	buf->shm_ctime = old.shm_ctime;
-	buf->shm_segsz = old.shm_segsz;
-	buf->shm_nattch = old.shm_nattch;
-	buf->shm_cpid = old.shm_cpid;
-	buf->shm_lpid = old.shm_lpid;
-      }
-# if __WORDSIZE != 32
-    else if (result != -1 && cmd == IPC_INFO)
-      {
-	struct __old_shminfo *oldi = (struct __old_shminfo *)&old;
-	struct shminfo *i = (struct shminfo *)buf;
-
-	memset(i, 0, sizeof(*i));
-	i->shmmax = oldi->shmmax;
-	i->shmmin = oldi->shmmin;
-	i->shmmni = oldi->shmmni;
-	i->shmseg = oldi->shmseg;
-	i->shmall = oldi->shmall;
-      }
-# endif
-    return result;
-  }
-#endif
 }
 
 versioned_symbol (libc, __new_shmctl, shmctl, GLIBC_2_2);
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 1090f8a809..fd2f1dbd01 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -37,91 +37,58 @@
    introduced.  If somebody cares these values can afterwards be
    corrected.  */
 
-/* When did the `setresuid' syscall became available?  By 2.2.0 except
-   on SPARC.  */
-#if !defined __sparc__
-# define __ASSUME_SETRESUID_SYSCALL	1
-#endif
-
 /* The sendfile syscall was introduced in 2.2.0.  */
 #define __ASSUME_SENDFILE		1
 
 /* On x86 another `getrlimit' syscall was added in 2.3.25.  */
-#if __LINUX_KERNEL_VERSION >= 131865 && defined __i386__
+#ifdef __i386__
 # define __ASSUME_NEW_GETRLIMIT_SYSCALL	1
 #endif
 
 /* On x86 the truncate64/ftruncate64 syscalls were introduced in 2.3.31.  */
-#if __LINUX_KERNEL_VERSION >= 131871 && defined __i386__
+#ifdef __i386__
 # define __ASSUME_TRUNCATE64_SYSCALL	1
 #endif
 
 /* On x86 the mmap2 syscall was introduced in 2.3.31.  */
-#if __LINUX_KERNEL_VERSION >= 131871 && defined __i386__
+#ifdef __i386__
 # define __ASSUME_MMAP2_SYSCALL	1
 #endif
 
 /* On x86 the stat64/lstat64/fstat64 syscalls were introduced in 2.3.34.  */
-#if __LINUX_KERNEL_VERSION >= 131874 && defined __i386__
+#ifdef __i386__
 # define __ASSUME_STAT64_SYSCALL	1
 #endif
 
 /* On sparc the truncate64/ftruncate64/mmap2/stat64/lstat64/fstat64
    syscalls were introduced in 2.3.35.  */
-#if __LINUX_KERNEL_VERSION >= 131875 \
-    && (defined __sparc__ && !defined __arch64__)
+#if defined __sparc__ && !defined __arch64__
 # define __ASSUME_TRUNCATE64_SYSCALL	1
 # define __ASSUME_MMAP2_SYSCALL		1
 # define __ASSUME_STAT64_SYSCALL	1
 #endif
 
 /* I know for sure that getrlimit are in 2.3.35 on powerpc.  */
-#if __LINUX_KERNEL_VERSION >= 131875 && defined __powerpc__
+#ifdef __powerpc__
 # define __ASSUME_NEW_GETRLIMIT_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 __LINUX_KERNEL_VERSION >= 131875 && defined __powerpc__ \
-    && !defined __powerpc64__
+#if defined __powerpc__ && !defined __powerpc64__
 # define __ASSUME_TRUNCATE64_SYSCALL	1
 # define __ASSUME_STAT64_SYSCALL	1
 #endif
 
-/* Linux 2.3.39 introduced 32bit UID/GIDs.  Some platforms had 32
-   bit type all along.  */
-#if __LINUX_KERNEL_VERSION >= 131879 || defined __powerpc__
-# define __ASSUME_32BITUIDS		1
-#endif
-
-/* Linux 2.3.39 sparc added setresuid.  */
-#if __LINUX_KERNEL_VERSION >= 131879 && defined __sparc__
-# define __ASSUME_SETRESUID_SYSCALL	1
-#endif
-
-#if __LINUX_KERNEL_VERSION >= 131879
-# define __ASSUME_SETRESGID_SYSCALL	1
-#endif
-
-/* Linux 2.3.39 introduced IPC64.  Except for powerpc.  */
-#if __LINUX_KERNEL_VERSION >= 131879 && !defined __powerpc__
+/* 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.  */
+#ifndef __powerpc64__
 # define __ASSUME_IPC64		1
 #endif
 
-/* We can use the LDTs for threading with Linux 2.3.99 and newer.  */
-#if __LINUX_KERNEL_VERSION >= 131939
-# define __ASSUME_LDT_WORKS		1
-#endif
-
-/* Linux 2.4.0 on PPC introduced a correct IPC64.  But PowerPC64 does not
-   support a separate 64-bit syscall, already 64-bit.  */
-#if __LINUX_KERNEL_VERSION >= 132096 && defined __powerpc__ \
-    && !defined __powerpc64__
-# define __ASSUME_IPC64			1
-#endif
-
 /* SH kernels got stat64, mmap2, and truncate64 during 2.4.0-test.  */
-#if __LINUX_KERNEL_VERSION >= 132096 && defined __sh__
+#ifdef __sh__
 # define __ASSUME_TRUNCATE64_SYSCALL	1
 # define __ASSUME_MMAP2_SYSCALL		1
 # define __ASSUME_STAT64_SYSCALL	1
@@ -163,12 +130,6 @@
 # define __ASSUME_GETDENTS64_SYSCALL	1
 #endif
 
-/* When did O_DIRECTORY become available?  Early in 2.3 but when?
-   Be safe, use 2.3.99.  */
-#if __LINUX_KERNEL_VERSION >= 131939
-# define __ASSUME_O_DIRECTORY		1
-#endif
-
 /* Starting with one of the 2.4.0 pre-releases the Linux kernel passes
    up the page size information.  */
 #if __LINUX_KERNEL_VERSION >= 132097
diff --git a/sysdeps/unix/sysv/linux/local-setxid.h b/sysdeps/unix/sysv/linux/local-setxid.h
index 0579687982..97d787d942 100644
--- a/sysdeps/unix/sysv/linux/local-setxid.h
+++ b/sysdeps/unix/sysv/linux/local-setxid.h
@@ -1,23 +1,16 @@
 /* SETxID functions which only have to change the local thread and
    none of the possible other threads.  */
-#include <kernel-features.h>
 #include <sysdep.h>
 
-/* If we can use the syscall directly, use it.  */
-#if __ASSUME_32BITUIDS > 0 && defined __NR_setresuid32
+#ifdef __NR_setresuid32
 # define local_seteuid(id) INLINE_SYSCALL (setresuid32, 3, -1, id, -1)
-#elif __ASSUME_SETRESUID_SYSCALL > 0
-# define local_seteuid(id) INLINE_SYSCALL (setresuid, 3, -1, id, -1)
 #else
-# define local_seteuid(id) seteuid (id)
+# define local_seteuid(id) INLINE_SYSCALL (setresuid, 3, -1, id, -1)
 #endif
 
 
-/* If we can use the syscall directly, use it.  */
-#if __ASSUME_32BITUIDS > 0 && defined __NR_setresgid32
+#ifdef __NR_setresgid32
 # define local_setegid(id) INLINE_SYSCALL (setresgid32, 3, -1, id, -1)
-#elif __ASSUME_SETRESGID_SYSCALL > 0
-# define local_setegid(id) INLINE_SYSCALL (setresgid, 3, -1, id, -1)
 #else
-# define local_setegid(id) setegid (id)
+# define local_setegid(id) INLINE_SYSCALL (setresgid, 3, -1, id, -1)
 #endif
diff --git a/sysdeps/unix/sysv/linux/opendir.c b/sysdeps/unix/sysv/linux/opendir.c
index 2c6c557a09..b0bb80d397 100644
--- a/sysdeps/unix/sysv/linux/opendir.c
+++ b/sysdeps/unix/sysv/linux/opendir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -15,11 +15,6 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include <kernel-features.h>
-
-
-#ifdef __ASSUME_O_DIRECTORY
-# define O_DIRECTORY_WORKS	1
-#endif
+#define O_DIRECTORY_WORKS	1
 
 #include <sysdeps/unix/opendir.c>
diff --git a/sysdeps/unix/sysv/linux/opensock.c b/sysdeps/unix/sysv/linux/opensock.c
index 5959380621..d4674229ea 100644
--- a/sysdeps/unix/sysv/linux/opensock.c
+++ b/sysdeps/unix/sysv/linux/opensock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2012 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
@@ -36,15 +36,8 @@ __opensock (void)
     const char procname[15];
   } afs[] =
     {
-      /* The 2.2 kernels cannot handle ioctl(SIOCGIFCONF) on AF_UNIX sockets.
-	 Give the kernel a chance to user inet sockets on old kernels.  */
-#if __LINUX_KERNEL_VERSION < 132096
-      { AF_INET, "" },
-      { AF_UNIX, "net/unix" },
-#else
       { AF_UNIX, "net/unix" },
       { AF_INET, "" },
-#endif
       { AF_INET6, "net/if_inet6" },
       { AF_AX25, "net/ax25" },
       { AF_NETROM, "net/nr" },
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/chown.c b/sysdeps/unix/sysv/linux/s390/s390-32/chown.c
index bc471454e4..cc0503cbca 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/chown.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/chown.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000,2001,2002,2003,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -24,7 +24,6 @@
 #include <bp-checks.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
 /*
   In Linux 2.1.x the chown functions have been changed.  A new function lchown
@@ -38,58 +37,12 @@
 
 /* Running under Linux > 2.1.80.  */
 
-#ifdef __NR_chown32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_chown32 */
+/* Consider moving to syscalls.list.  */
 
 int
 __real_chown (const char *file, uid_t owner, gid_t group)
 {
-#if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-#else
-  static int __libc_old_chown;
-  int result;
-
-  if (!__libc_old_chown)
-    {
-      int saved_errno = errno;
-# ifdef __NR_chown32
-      if (__libc_missing_32bit_uids <= 0)
-	{
-	  int result;
-	  int saved_errno = errno;
-
-	  result = INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-	  if (result == 0 || errno != ENOSYS)
-	    return result;
-
-	  __set_errno (saved_errno);
-	  __libc_missing_32bit_uids = 1;
-	}
-# endif /* __NR_chown32 */
-      if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-	  || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-	{
-	  __set_errno (EINVAL);
-	  return -1;
-	}
-
-      result = INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
-
-      if (result >= 0 || errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_old_chown = 1;
-    }
-
-  return __lchown (file, owner, group);
-#endif
 }
 
 
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c b/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c
index 754245a8fd..6190d02a6f 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/lchown.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001, 2003, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2012 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
@@ -23,46 +23,13 @@
 #include <bp-checks.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
-# ifdef __NR_lchown32
-#  if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-#  endif
-# endif /* __NR_lchown32 */
+/* Consider moving to syscalls.list.  */
 
 int
 __lchown (const char *file, uid_t owner, gid_t group)
 {
-# if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (lchown32, 3, CHECK_STRING (file), owner, group);
-# else
-#  ifdef __NR_lchown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-      int saved_errno = errno;
-
-      result = INLINE_SYSCALL (lchown32, 3, CHECK_STRING (file), owner, group);
-      if (result == 0 || errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-#  endif /* __NR_lchown32 */
-
-  if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  return INLINE_SYSCALL (lchown, 3, CHECK_STRING (file), owner, group);
-# endif
 }
 
 weak_alias (__lchown, lchown)
diff --git a/sysdeps/unix/sysv/linux/setegid.c b/sysdeps/unix/sysv/linux/setegid.c
index bc26c99ef7..5ed44ed70f 100644
--- a/sysdeps/unix/sysv/linux/setegid.c
+++ b/sysdeps/unix/sysv/linux/setegid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,2000,2002,2003,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -18,13 +18,8 @@
 #include <errno.h>
 #include <unistd.h>
 #include <setxid.h>
-#include <kernel-features.h>
 
 
-#if defined __NR_setresgid || __ASSUME_SETRESGID_SYSCALL > 0
-
-extern int __setresgid (gid_t rgid, gid_t egid, gid_t sgid);
-
 int
 setegid (gid_t gid)
 {
@@ -36,25 +31,14 @@ setegid (gid_t gid)
       return -1;
     }
 
-# if __ASSUME_32BITUIDS > 0 && defined __NR_setresgid32
+#ifdef __NR_setresgid32
   result = INLINE_SETXID_SYSCALL (setresgid32, 3, -1, gid, -1);
-# else
-  /* First try the syscall.  */
+#else
   result = INLINE_SETXID_SYSCALL (setresgid, 3, -1, gid, -1);
-#  if __ASSUME_SETRESGID_SYSCALL == 0
-  if (result == -1 && errno == ENOSYS)
-    /* No system call available.  Use emulation.  This may not work
-       since `setregid' also sets the saved group ID when GID is not
-       equal to the real group ID, making it impossible to switch back. */
-    result = __setregid (-1, gid);
-#  endif
-# endif
+#endif
 
   return result;
 }
 #ifndef setegid
 libc_hidden_def (setegid)
 #endif
-#else
-# include <sysdeps/unix/bsd/setegid.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/seteuid.c b/sysdeps/unix/sysv/linux/seteuid.c
index 21625b406f..e9bd82d86e 100644
--- a/sysdeps/unix/sysv/linux/seteuid.c
+++ b/sysdeps/unix/sysv/linux/seteuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,1999,2002,2003,2004,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -18,13 +18,8 @@
 #include <errno.h>
 #include <unistd.h>
 #include <setxid.h>
-#include <kernel-features.h>
 
 
-#if defined __NR_setresuid || __ASSUME_SETRESUID_SYSCALL > 0
-
-extern int __setresuid (uid_t ruid, uid_t euid, uid_t suid);
-
 int
 seteuid (uid_t uid)
 {
@@ -36,25 +31,14 @@ seteuid (uid_t uid)
       return -1;
     }
 
-# if __ASSUME_32BITUIDS > 0 && defined __NR_setresuid32
+#ifdef __NR_setresuid32
   result = INLINE_SETXID_SYSCALL (setresuid32, 3, -1, uid, -1);
-# else
-  /* First try the syscall.  */
+#else
   result = INLINE_SETXID_SYSCALL (setresuid, 3, -1, uid, -1);
-#  if __ASSUME_SETRESUID_SYSCALL == 0
-  if (result == -1 && errno == ENOSYS)
-    /* No system call available.  Use emulation.  This may not work
-       since `setreuid' also sets the saved user ID when UID is not
-       equal to the real user ID, making it impossible to switch back.  */
-    result = __setreuid (-1, uid);
-#  endif
-# endif
+#endif
 
   return result;
 }
 #ifndef seteuid
 libc_hidden_def (seteuid)
 #endif
-#else
-# include <sysdeps/unix/bsd/seteuid.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/sh/chown.c b/sysdeps/unix/sysv/linux/sh/chown.c
index 72582b9a43..5ae94b6b25 100644
--- a/sysdeps/unix/sysv/linux/sh/chown.c
+++ b/sysdeps/unix/sysv/linux/sh/chown.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998,2000,2002,2003,2006 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -23,46 +23,13 @@
 #include <bp-checks.h>
 
 #include <linux/posix_types.h>
-#include <kernel-features.h>
 
-#ifdef __NR_chown32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif /* __NR_chown32 */
+/* Consider moving to syscalls.list.  */
 
 int
 __chown (const char *file, uid_t owner, gid_t group)
 {
-#if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-#else
-# ifdef __NR_chown32
-  if (__libc_missing_32bit_uids <= 0)
-    {
-      int result;
-      int saved_errno = errno;
-
-      result = INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-      if (result == 0 || errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_32bit_uids = 1;
-    }
-# endif /* __NR_chown32 */
-
-  if (((owner + 1) > (gid_t) ((__kernel_uid_t) -1U))
-      || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
-#endif
 }
 libc_hidden_def (__chown)
 weak_alias (__chown, chown)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c b/sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c
index 87cb23a517..464f0b502d 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c
@@ -1,6 +1,5 @@
 /* Semctl for architectures where word sized unions are passed indirectly
-   Copyright (C) 1995,1997,1998,2000,2002,2003,2004,2006
-   	Free Software Foundation, Inc.
+   Copyright (C) 1995-2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
 
@@ -27,7 +26,6 @@
 #include <string.h>
 #include <sys/syscall.h>
 
-#include <kernel-features.h>
 #include <shlib-compat.h>
 
 struct __old_semid_ds
@@ -55,14 +53,6 @@ union semun
 #include <bp-checks.h>
 #include <bp-semctl.h>		/* definition of CHECK_SEMCTL needs union semum */
 
-#ifdef __NR_getuid32
-# if __ASSUME_32BITUIDS == 0
-/* This variable is shared with all files that need to check for 32bit
-   uids.  */
-extern int __libc_missing_32bit_uids;
-# endif
-#endif
-
 /* Return identifier for array of NSEMS semaphores associated with
    KEY.  */
 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2)
@@ -126,82 +116,8 @@ __new_semctl (int semid, int semnum, int cmd, ...)
       break;
     }
 
-#if __ASSUME_32BITUIDS > 0
   return INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd | __IPC_64,
 			 CHECK_SEMCTL (&arg, semid, cmd | __IPC_64));
-#else
-  switch (cmd) {
-    case SEM_STAT:
-    case IPC_STAT:
-    case IPC_SET:
-      break;
-    default:
-      return INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd,
-			     CHECK_SEMCTL (&arg, semid, cmd));
-  }
-
-  {
-    int result;
-    struct __old_semid_ds old;
-    struct semid_ds *buf;
-
-#ifdef __NR_getuid32
-    if (__libc_missing_32bit_uids <= 0)
-      {
-	if (__libc_missing_32bit_uids < 0)
-	  {
-	    int save_errno = errno;
-
-	    /* Test presence of new IPC by testing for getuid32 syscall.  */
-	    result = INLINE_SYSCALL (getuid32, 0);
-	    if (result == -1 && errno == ENOSYS)
-	      __libc_missing_32bit_uids = 1;
-	    else
-	      __libc_missing_32bit_uids = 0;
-	    __set_errno(save_errno);
-	  }
-	if (__libc_missing_32bit_uids <= 0)
-	  {
-	    result = INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd | __IPC_64,
-				     CHECK_SEMCTL (&arg, semid, cmd | __IPC_64));
-	    return result;
-	  }
-      }
-#endif
-
-    buf = arg.buf;
-    arg.__old_buf = &old;
-    if (cmd == IPC_SET)
-      {
-	old.sem_perm.uid = buf->sem_perm.uid;
-	old.sem_perm.gid = buf->sem_perm.gid;
-	old.sem_perm.mode = buf->sem_perm.mode;
-	if (old.sem_perm.uid != buf->sem_perm.uid ||
-	    old.sem_perm.gid != buf->sem_perm.gid)
-	  {
-	    __set_errno (EINVAL);
-	    return -1;
-	  }
-      }
-    result = INLINE_SYSCALL (ipc, 5, IPCOP_semctl, semid, semnum, cmd,
-			     CHECK_SEMCTL (&arg, semid, cmd));
-    if (result != -1 && cmd != IPC_SET)
-      {
-	memset(buf, 0, sizeof(*buf));
-	buf->sem_perm.__key = old.sem_perm.__key;
-	buf->sem_perm.uid = old.sem_perm.uid;
-	buf->sem_perm.gid = old.sem_perm.gid;
-	buf->sem_perm.cuid = old.sem_perm.cuid;
-	buf->sem_perm.cgid = old.sem_perm.cgid;
-	buf->sem_perm.mode = old.sem_perm.mode;
-	buf->sem_perm.__seq = old.sem_perm.__seq;
-	buf->sem_otime = old.sem_otime;
-	buf->sem_ctime = old.sem_ctime;
-	buf->sem_nsems = old.sem_nsems;
-      }
-    return result;
-  }
-#endif
 }
 
 versioned_symbol (libc, __new_semctl, semctl, GLIBC_2_2);