20 files changed, 59 insertions, 453 deletions

diff --git a/sysdeps/unix/sysv/linux/alpha/setregid.c b/sysdeps/unix/sysv/linux/alpha/setregid.c
index cfc8283c3a..0973fe4ac1 100644
--- a/sysdeps/unix/sysv/linux/alpha/setregid.c
+++ b/sysdeps/unix/sysv/linux/alpha/setregid.c
@@ -18,35 +18,13 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
+#include <setxid.h>
 
 
 int
 __setregid (gid_t rgid, gid_t egid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setregid, 2, (signed int)rgid, (signed int)egid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setregid;
-      cmd.id[0] = rgid;
-      cmd.id[1] = egid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setregid, 2, (int) rgid, (int) egid);
 }
 #ifndef __setregid
 weak_alias (__setregid, setregid)
diff --git a/sysdeps/unix/sysv/linux/alpha/setresgid.c b/sysdeps/unix/sysv/linux/alpha/setresgid.c
index fdfa486534..50e29e3c76 100644
--- a/sysdeps/unix/sysv/linux/alpha/setresgid.c
+++ b/sysdeps/unix/sysv/linux/alpha/setresgid.c
@@ -18,36 +18,14 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
+#include <setxid.h>
 
 
 int
 __setresgid (gid_t rgid, gid_t egid, gid_t sgid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setresgid, 3, (signed int)rgid, (signed int)egid, (signed int)sgid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setresgid;
-      cmd.id[0] = rgid;
-      cmd.id[1] = egid;
-      cmd.id[2] = sgid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setresgid, 3, (int) rgid,
+				(int) egid, (int) sgid);
 }
 libc_hidden_def (__setresgid)
 #ifndef __setresgid
diff --git a/sysdeps/unix/sysv/linux/alpha/setresuid.c b/sysdeps/unix/sysv/linux/alpha/setresuid.c
index 49671278ee..e76413bf6a 100644
--- a/sysdeps/unix/sysv/linux/alpha/setresuid.c
+++ b/sysdeps/unix/sysv/linux/alpha/setresuid.c
@@ -18,36 +18,14 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
+#include <setxid.h>
 
 
 int
 __setresuid (uid_t ruid, uid_t euid, uid_t suid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setresuid, 3, (signed int)ruid, (signed int)euid, (signed int)suid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setresuid;
-      cmd.id[0] = ruid;
-      cmd.id[1] = euid;
-      cmd.id[2] = suid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setresuid, 3, (int) ruid,
+				(int) euid, (int) suid);
 }
 libc_hidden_def (__setresuid)
 #ifndef __setresuid
diff --git a/sysdeps/unix/sysv/linux/alpha/setreuid.c b/sysdeps/unix/sysv/linux/alpha/setreuid.c
index b29aed479e..a23a34792e 100644
--- a/sysdeps/unix/sysv/linux/alpha/setreuid.c
+++ b/sysdeps/unix/sysv/linux/alpha/setreuid.c
@@ -18,35 +18,13 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
+#include <setxid.h>
 
 
 int
 __setreuid (uid_t ruid, uid_t euid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setreuid, 2, (signed int)ruid, (signed int)euid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setreuid;
-      cmd.id[0] = ruid;
-      cmd.id[1] = euid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setreuid, 2, (int) ruid, (int) euid);
 }
 #ifndef __setreuid
 weak_alias (__setreuid, setreuid)
diff --git a/sysdeps/unix/sysv/linux/i386/setegid.c b/sysdeps/unix/sysv/linux/i386/setegid.c
index b8682e3681..b4bf33f18f 100644
--- a/sysdeps/unix/sysv/linux/i386/setegid.c
+++ b/sysdeps/unix/sysv/linux/i386/setegid.c
@@ -18,11 +18,8 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #ifdef __NR_setresgid
@@ -42,7 +39,7 @@ setegid (gid)
     }
 
 #if __ASSUME_32BITUIDS > 0
-  result = INLINE_SYSCALL (setresgid32, 3, -1, gid, -1);
+  result = INLINE_SETXID_SYSCALL (setresgid32, 3, -1, gid, -1);
 #else
   /* First try the syscall.  */
 # ifdef __NR_setresgid
@@ -59,18 +56,6 @@ setegid (gid)
     result = __setregid (-1, gid);
 #endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setresgid32;
-      cmd.id[0] = -1;
-      cmd.id[1] = gid;
-      cmd.id[2] = -1;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 libc_hidden_def (setegid)
diff --git a/sysdeps/unix/sysv/linux/i386/seteuid.c b/sysdeps/unix/sysv/linux/i386/seteuid.c
index 0abdac832f..c139684d04 100644
--- a/sysdeps/unix/sysv/linux/i386/seteuid.c
+++ b/sysdeps/unix/sysv/linux/i386/seteuid.c
@@ -17,12 +17,9 @@
    02111-1307 USA.  */
 
 #include <errno.h>
-#include <sys/types.h>
 #include <unistd.h>
-
-#include <sysdep.h>
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #ifdef __NR_setresuid
@@ -41,7 +38,7 @@ seteuid (uid_t uid)
     }
 
 #if __ASSUME_32BITUIDS > 0
-  result = INLINE_SYSCALL (setresuid32, 3, -1, uid, -1);
+  result = INLINE_SETXID_SYSCALL (setresuid32, 3, -1, uid, -1);
 #else
   /* First try the syscall.  */
 # ifdef __NR_setresuid
@@ -58,18 +55,6 @@ seteuid (uid_t uid)
     result = __setreuid (-1, uid);
 #endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setresuid32;
-      cmd.id[0] = -1;
-      cmd.id[1] = uid;
-      cmd.id[2] = -1;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 libc_hidden_def (seteuid)
diff --git a/sysdeps/unix/sysv/linux/i386/setgid.c b/sysdeps/unix/sysv/linux/i386/setgid.c
index 17bfc3e58a..19b1e9f500 100644
--- a/sysdeps/unix/sysv/linux/i386/setgid.c
+++ b/sysdeps/unix/sysv/linux/i386/setgid.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1998, 2000, 2003, 2004
-   Free Software Foundation, Inc.
+/* Copyright (C) 1998, 2000, 2003, 2004 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
@@ -19,15 +18,8 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #ifdef __NR_setgid32
@@ -44,14 +36,14 @@ __setgid (gid_t gid)
   int result;
 
 #if __ASSUME_32BITUIDS > 0
-  result = INLINE_SYSCALL (setgid32, 1, gid);
+  result = INLINE_SETXID_SYSCALL (setgid32, 1, gid);
 #else
 # ifdef __NR_setgid32
   if (__libc_missing_32bit_uids <= 0)
     {
       int saved_errno = errno;
 
-      result = INLINE_SYSCALL (setgid32, 1, gid);
+      result = INLINE_SETXID_SYSCALL (setgid32, 1, gid);
 
       if (result == 0)
 	goto out;
@@ -70,22 +62,12 @@ __setgid (gid_t gid)
       return -1;
     }
 
-  result = INLINE_SYSCALL (setgid, 1, gid);
+  result = INLINE_SETXID_SYSCALL (setgid, 1, gid);
 # ifdef __NR_setgid32
  out:
 # endif
 #endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setgid32;
-      cmd.id[0] = gid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 #ifndef __setgid
diff --git a/sysdeps/unix/sysv/linux/i386/setregid.c b/sysdeps/unix/sysv/linux/i386/setregid.c
index f883497fae..be7870d3b7 100644
--- a/sysdeps/unix/sysv/linux/i386/setregid.c
+++ b/sysdeps/unix/sysv/linux/i386/setregid.c
@@ -17,15 +17,9 @@
    02111-1307 USA.  */
 
 #include <errno.h>
-#include <sys/types.h>
 #include <unistd.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #ifdef __NR_setregid32
@@ -42,14 +36,14 @@ __setregid (gid_t rgid, gid_t egid)
   int result;
 
 #if __ASSUME_32BITUIDS > 0
-  result = INLINE_SYSCALL (setregid32, 2, rgid, egid);
+  result = INLINE_SETXID_SYSCALL (setregid32, 2, rgid, egid);
 #else
 # ifdef __NR_setregid32
   if (__libc_missing_32bit_uids <= 0)
     {
       int saved_errno = errno;
 
-      result = INLINE_SYSCALL (setregid32, 2, rgid, egid);
+      result = INLINE_SETXID_SYSCALL (setregid32, 2, rgid, egid);
 
       if (result == 0)
 	goto out;
@@ -67,23 +61,12 @@ __setregid (gid_t rgid, gid_t egid)
       return -1;
     }
 
-  result = INLINE_SYSCALL (setregid, 2, rgid, egid);
+  result = INLINE_SETXID_SYSCALL (setregid, 2, rgid, egid);
 # ifdef __NR_setregid32
  out:
 # endif
 #endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setregid32;
-      cmd.id[0] = rgid;
-      cmd.id[1] = egid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 #ifndef __setregid
diff --git a/sysdeps/unix/sysv/linux/i386/setresgid.c b/sysdeps/unix/sysv/linux/i386/setresgid.c
index 614e2c256d..c8b17ee7fc 100644
--- a/sysdeps/unix/sysv/linux/i386/setresgid.c
+++ b/sysdeps/unix/sysv/linux/i386/setresgid.c
@@ -18,14 +18,8 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <linux/posix_types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #if defined __NR_setresgid || defined __NR_setresgid32
@@ -44,14 +38,14 @@ __setresgid (gid_t rgid, gid_t egid, gid_t sgid)
   int result;
 
 # if __ASSUME_32BITUIDS > 0 || !defined __NR_setresgid
-  result = INLINE_SYSCALL (setresgid32, 3, rgid, egid, sgid);
+  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_SYSCALL (setresgid32, 3, rgid, egid, sgid);
+      result = INLINE_SETXID_SYSCALL (setresgid32, 3, rgid, egid, sgid);
       if (result == 0)
 	goto out;
       if (errno != ENOSYS)
@@ -70,24 +64,12 @@ __setresgid (gid_t rgid, gid_t egid, gid_t sgid)
       return -1;
     }
 
-  result = INLINE_SYSCALL (setresgid, 3, rgid, egid, sgid);
+  result = INLINE_SETXID_SYSCALL (setresgid, 3, rgid, egid, sgid);
 #  ifdef __NR_setresgid32
  out:
 #  endif
 # endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setresgid32;
-      cmd.id[0] = rgid;
-      cmd.id[1] = egid;
-      cmd.id[2] = sgid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 libc_hidden_def (__setresgid)
diff --git a/sysdeps/unix/sysv/linux/i386/setresuid.c b/sysdeps/unix/sysv/linux/i386/setresuid.c
index 4d735ca0f9..a91896a1a4 100644
--- a/sysdeps/unix/sysv/linux/i386/setresuid.c
+++ b/sysdeps/unix/sysv/linux/i386/setresuid.c
@@ -18,14 +18,8 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <linux/posix_types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #if defined __NR_setresuid || defined __NR_setresuid32
@@ -44,14 +38,14 @@ __setresuid (uid_t ruid, uid_t euid, uid_t suid)
   int result;
 
 # if __ASSUME_32BITUIDS > 0 || !defined __NR_setresuid
-  result = INLINE_SYSCALL (setresuid32, 3, ruid, euid, suid);
+  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_SYSCALL (setresuid32, 3, ruid, euid, suid);
+      result = INLINE_SETXID_SYSCALL (setresuid32, 3, ruid, euid, suid);
       if (result == 0)
 	goto out;
       if (errno != ENOSYS)
@@ -70,24 +64,12 @@ __setresuid (uid_t ruid, uid_t euid, uid_t suid)
       return -1;
     }
 
-  result = INLINE_SYSCALL (setresuid, 3, ruid, euid, suid);
+  result = INLINE_SETXID_SYSCALL (setresuid, 3, ruid, euid, suid);
 #  ifdef __NR_setresuid32
  out:
 #  endif
 # endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setresuid32;
-      cmd.id[0] = ruid;
-      cmd.id[1] = euid;
-      cmd.id[2] = suid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 libc_hidden_def (__setresuid)
diff --git a/sysdeps/unix/sysv/linux/i386/setreuid.c b/sysdeps/unix/sysv/linux/i386/setreuid.c
index 1e1bfcf0d4..55dae1ebab 100644
--- a/sysdeps/unix/sysv/linux/i386/setreuid.c
+++ b/sysdeps/unix/sysv/linux/i386/setreuid.c
@@ -17,15 +17,9 @@
    02111-1307 USA.  */
 
 #include <errno.h>
-#include <sys/types.h>
 #include <unistd.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #ifdef __NR_setreuid32
@@ -42,14 +36,14 @@ __setreuid (uid_t ruid, uid_t euid)
   int result;
 
 #if __ASSUME_32BITUIDS > 0
-  result = INLINE_SYSCALL (setreuid32, 2, ruid, euid);
+  result = INLINE_SETXID_SYSCALL (setreuid32, 2, ruid, euid);
 #else
 # ifdef __NR_setreuid32
   if (__libc_missing_32bit_uids <= 0)
     {
       int saved_errno = errno;
 
-      result = INLINE_SYSCALL (setreuid32, 2, ruid, euid);
+      result = INLINE_SETXID_SYSCALL (setreuid32, 2, ruid, euid);
 
       if (result == 0)
 	goto out;
@@ -67,23 +61,12 @@ __setreuid (uid_t ruid, uid_t euid)
       return -1;
     }
 
-  result = INLINE_SYSCALL (setreuid, 2, ruid, euid);
+  result = INLINE_SETXID_SYSCALL (setreuid, 2, ruid, euid);
 # ifdef __NR_setreuid32
  out:
 # endif
 #endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setreuid32;
-      cmd.id[0] = ruid;
-      cmd.id[1] = euid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 #ifndef __setreuid
diff --git a/sysdeps/unix/sysv/linux/i386/setuid.c b/sysdeps/unix/sysv/linux/i386/setuid.c
index 0d948fb775..9ebf76267f 100644
--- a/sysdeps/unix/sysv/linux/i386/setuid.c
+++ b/sysdeps/unix/sysv/linux/i386/setuid.c
@@ -18,14 +18,8 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #ifdef __NR_setuid32
@@ -42,14 +36,14 @@ __setuid (uid_t uid)
   int result;
 
 #if __ASSUME_32BITUIDS > 0 && defined __NR_setuid32
-  result = INLINE_SYSCALL (setuid32, 1, uid);
+  result = INLINE_SETXID_SYSCALL (setuid32, 1, uid);
 #else
 # ifdef __NR_setuid32
   if (__libc_missing_32bit_uids <= 0)
     {
       int saved_errno = errno;
 
-      result = INLINE_SYSCALL (setuid32, 1, uid);
+      result = INLINE_SETXID_SYSCALL (setuid32, 1, uid);
       if (result == 0)
 	goto out;
       if (errno != ENOSYS)
@@ -67,22 +61,12 @@ __setuid (uid_t uid)
       return -1;
     }
 
-  result = INLINE_SYSCALL (setuid, 1, uid);
+  result = INLINE_SETXID_SYSCALL (setuid, 1, uid);
 # ifdef __NR_setuid32
  out:
 # endif
 #endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setuid32;
-      cmd.id[0] = uid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 #ifndef __setuid
diff --git a/sysdeps/unix/sysv/linux/setegid.c b/sysdeps/unix/sysv/linux/setegid.c
index 33e91c773a..f87af0d16f 100644
--- a/sysdeps/unix/sysv/linux/setegid.c
+++ b/sysdeps/unix/sysv/linux/setegid.c
@@ -17,13 +17,9 @@
    02111-1307 USA.  */
 
 #include <errno.h>
-#include <sys/syscall.h>
-#include <sys/types.h>
 #include <unistd.h>
-
-#include <sysdep.h>
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #if defined __NR_setresgid || __ASSUME_SETRESGID_SYSCALL > 0
@@ -42,10 +38,10 @@ setegid (gid_t gid)
     }
 
 # if __ASSUME_32BITUIDS > 0 && defined __NR_setresgid32
-  result = INLINE_SYSCALL (setresgid32, 3, -1, gid, -1);
+  result = INLINE_SETXID_SYSCALL (setresgid32, 3, -1, gid, -1);
 # else
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (setresgid, 3, -1, gid, -1);
+  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
@@ -55,22 +51,6 @@ setegid (gid_t gid)
 #  endif
 # endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-# ifdef __NR_setresgid32
-      cmd.syscall_no = __NR_setresgid32;
-# else
-      cmd.syscall_no = __NR_setresgid;
-# endif
-      cmd.id[0] = -1;
-      cmd.id[1] = gid;
-      cmd.id[2] = -1;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 #ifndef setegid
diff --git a/sysdeps/unix/sysv/linux/seteuid.c b/sysdeps/unix/sysv/linux/seteuid.c
index da03a1e6ef..5e5d1e184f 100644
--- a/sysdeps/unix/sysv/linux/seteuid.c
+++ b/sysdeps/unix/sysv/linux/seteuid.c
@@ -17,13 +17,9 @@
    02111-1307 USA.  */
 
 #include <errno.h>
-#include <sys/syscall.h>
-#include <sys/types.h>
 #include <unistd.h>
-
-#include <sysdep.h>
+#include <setxid.h>
 #include "kernel-features.h"
-#include <pthread-functions.h>
 
 
 #if defined __NR_setresuid || __ASSUME_SETRESUID_SYSCALL > 0
@@ -42,10 +38,10 @@ seteuid (uid_t uid)
     }
 
 # if __ASSUME_32BITUIDS > 0 && defined __NR_setresuid32
-  result = INLINE_SYSCALL (setresuid32, 3, -1, uid, -1);
+  result = INLINE_SETXID_SYSCALL (setresuid32, 3, -1, uid, -1);
 # else
   /* First try the syscall.  */
-  result = INLINE_SYSCALL (setresuid, 3, -1, uid, -1);
+  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
@@ -55,22 +51,6 @@ seteuid (uid_t uid)
 #  endif
 # endif
 
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-# ifdef __NR_setresuid32
-      cmd.syscall_no = __NR_setresuid32;
-# else
-      cmd.syscall_no = __NR_setresuid;
-# endif
-      cmd.id[0] = -1;
-      cmd.id[1] = uid;
-      cmd.id[2] = -1;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
   return result;
 }
 #ifndef seteuid
diff --git a/sysdeps/unix/sysv/linux/setgid.c b/sysdeps/unix/sysv/linux/setgid.c
index dae642abb5..1411f53659 100644
--- a/sysdeps/unix/sysv/linux/setgid.c
+++ b/sysdeps/unix/sysv/linux/setgid.c
@@ -18,35 +18,13 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
-
+#include <setxid.h>
 
 
 int
 __setgid (gid_t gid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setgid, 1, gid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setgid;
-      cmd.id[0] = gid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setgid, 1, gid);
 }
 #ifndef __setgid
 weak_alias (__setgid, setgid)
diff --git a/sysdeps/unix/sysv/linux/setregid.c b/sysdeps/unix/sysv/linux/setregid.c
index 1d539260ed..df79eae913 100644
--- a/sysdeps/unix/sysv/linux/setregid.c
+++ b/sysdeps/unix/sysv/linux/setregid.c
@@ -18,35 +18,13 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
+#include <setxid.h>
 
 
 int
 __setregid (gid_t rgid, gid_t egid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setregid, 2, rgid, egid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setregid;
-      cmd.id[0] = rgid;
-      cmd.id[1] = egid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setregid, 2, rgid, egid);
 }
 #ifndef __setregid
 weak_alias (__setregid, setregid)
diff --git a/sysdeps/unix/sysv/linux/setresgid.c b/sysdeps/unix/sysv/linux/setresgid.c
index ae61d42e6b..d6c9758d71 100644
--- a/sysdeps/unix/sysv/linux/setresgid.c
+++ b/sysdeps/unix/sysv/linux/setresgid.c
@@ -18,37 +18,15 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
+#include <setxid.h>
 
 
 int
 __setresgid (gid_t rgid, gid_t egid, gid_t sgid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setresgid, 3, rgid, egid, sgid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setresgid;
-      cmd.id[0] = rgid;
-      cmd.id[1] = egid;
-      cmd.id[2] = sgid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setresgid, 3, rgid, egid, sgid);
 }
+libc_hidden_def (__setresgid)
 #ifndef __setresgid
 weak_alias (__setresgid, setresgid)
 #endif
diff --git a/sysdeps/unix/sysv/linux/setresuid.c b/sysdeps/unix/sysv/linux/setresuid.c
index 962d944aa4..e7feeefce0 100644
--- a/sysdeps/unix/sysv/linux/setresuid.c
+++ b/sysdeps/unix/sysv/linux/setresuid.c
@@ -18,37 +18,15 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
+#include <setxid.h>
 
 
 int
 __setresuid (uid_t ruid, uid_t euid, uid_t suid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setresuid, 3, ruid, euid, suid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setresuid;
-      cmd.id[0] = ruid;
-      cmd.id[1] = euid;
-      cmd.id[2] = suid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setresuid, 3, ruid, euid, suid);
 }
+libc_hidden_def (__setresuid)
 #ifndef __setresuid
 weak_alias (__setresuid, setresuid)
 #endif
diff --git a/sysdeps/unix/sysv/linux/setreuid.c b/sysdeps/unix/sysv/linux/setreuid.c
index c9d841eca0..ce30d3c696 100644
--- a/sysdeps/unix/sysv/linux/setreuid.c
+++ b/sysdeps/unix/sysv/linux/setreuid.c
@@ -18,35 +18,13 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
+#include <setxid.h>
 
 
 int
 __setreuid (uid_t ruid, uid_t euid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setreuid, 2, ruid, euid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setreuid;
-      cmd.id[0] = ruid;
-      cmd.id[1] = euid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setreuid, 2, ruid, euid);
 }
 #ifndef __setreuid
 weak_alias (__setreuid, setreuid)
diff --git a/sysdeps/unix/sysv/linux/setuid.c b/sysdeps/unix/sysv/linux/setuid.c
index 84f35176a1..a523dfdbd2 100644
--- a/sysdeps/unix/sysv/linux/setuid.c
+++ b/sysdeps/unix/sysv/linux/setuid.c
@@ -18,34 +18,12 @@
 
 #include <errno.h>
 #include <unistd.h>
-#include <sys/types.h>
-
-#include <sysdep.h>
-#include <sys/syscall.h>
-
-#include <linux/posix_types.h>
-#include "kernel-features.h"
-#include <pthread-functions.h>
-
+#include <setxid.h>
 
 int
 __setuid (uid_t uid)
 {
-  int result;
-
-  result = INLINE_SYSCALL (setuid, 1, uid);
-
-#if defined HAVE_PTR__NPTL_SETXID && !defined SINGLE_THREAD
-  if (result == 0 && __libc_pthread_functions.ptr__nptl_setxid != NULL)
-    {
-      struct xid_command cmd;
-      cmd.syscall_no = __NR_setuid;
-      cmd.id[0] = uid;
-      __libc_pthread_functions.ptr__nptl_setxid (&cmd);
-    }
-#endif
-
-  return result;
+  return INLINE_SETXID_SYSCALL (setuid, 1, uid);
 }
 #ifndef __setuid
 weak_alias (__setuid, setuid)