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-rw-r--r--nptl/sysdeps/pthread/pthread_sigmask.c10
-rw-r--r--nptl/sysdeps/pthread/sigaction.c4
-rw-r--r--nptl/sysdeps/unix/sysv/linux/pthread_kill.c7
3 files changed, 12 insertions, 9 deletions
diff --git a/nptl/sysdeps/pthread/pthread_sigmask.c b/nptl/sysdeps/pthread/pthread_sigmask.c
index efe186ac2c..0d12fe6bf0 100644
--- a/nptl/sysdeps/pthread/pthread_sigmask.c
+++ b/nptl/sysdeps/pthread/pthread_sigmask.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -31,13 +31,15 @@ pthread_sigmask (how, newmask, oldmask)
 {
   sigset_t local_newmask;
 
-  /* The only thing we have to make sure here is that SIGCANCEL is not
-     blocked.  */
+  /* The only thing we have to make sure here is that SIGCANCEL and
+     SIGSETXID is not blocked.  */
   if (newmask != NULL
-      && __builtin_expect (__sigismember (newmask, SIGCANCEL), 0))
+      && (__builtin_expect (__sigismember (newmask, SIGCANCEL), 0)
+	  || __builtin_expect (__sigismember (newmask, SIGSETXID), 0)))
     {
       local_newmask = *newmask;
       __sigdelset (&local_newmask, SIGCANCEL);
+      __sigdelset (&local_newmask, SIGSETXID);
       newmask = &local_newmask;
     }
 
diff --git a/nptl/sysdeps/pthread/sigaction.c b/nptl/sysdeps/pthread/sigaction.c
index 392cb65c90..4d36150a90 100644
--- a/nptl/sysdeps/pthread/sigaction.c
+++ b/nptl/sysdeps/pthread/sigaction.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -36,7 +36,7 @@ __sigaction (sig, act, oact)
      const struct sigaction *act;
      struct sigaction *oact;
 {
-  if (sig == SIGCANCEL)
+  if (__builtin_expect (sig == SIGCANCEL || sig == SIGSETXID, 0))
     {
       __set_errno (EINVAL);
       return -1;
diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_kill.c b/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
index 87577be4dc..9115d6f40b 100644
--- a/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
+++ b/nptl/sysdeps/unix/sysv/linux/pthread_kill.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
@@ -37,8 +37,9 @@ __pthread_kill (threadid, signo)
     /* Not a valid thread handle.  */
     return ESRCH;
 
-  /* Disallow sending the signal we use for cancellation.  */
-  if (signo == SIGCANCEL || signo == SIGTIMER)
+  /* Disallow sending the signal we use for cancellation, timers, for
+     for the setxid implementation.  */
+  if (signo == SIGCANCEL || signo == SIGTIMER || signo == SIGSETXID)
     return EINVAL;
 
   /* We have a special syscall to do the work.  */