7 files changed, 54 insertions, 113 deletions
diff --git a/sysdeps/posix/pause.c b/sysdeps/posix/pause.c
index 8639e684f4..538c186ec0 100644
--- a/sysdeps/posix/pause.c
+++ b/sysdeps/posix/pause.c
@@ -1,5 +1,5 @@
 /* pause -- suspend the process until a signal arrives.  POSIX.1 version.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2006 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
@@ -23,6 +23,7 @@
 
 /* Suspend the process until a signal arrives.
    This always returns -1 and sets errno to EINTR.  */
+
 int
 __libc_pause (void)
 {
@@ -39,3 +40,18 @@ __libc_pause (void)
 weak_alias (__libc_pause, pause)
 
 LIBC_CANCEL_HANDLED ();		/* sigsuspend handles our cancellation.  */
+
+#ifndef NO_CANCELLATION
+# include <not-cancel.h>
+
+int
+__pause_nocancel (void)
+{
+  sigset_t set;
+
+  __sigemptyset (&set);
+  __sigprocmask (SIG_BLOCK, NULL, &set);
+
+  return sigsuspend_not_cancel (&set);
+}
+#endif
diff --git a/sysdeps/unix/sysv/linux/ia64/sigsuspend.c b/sysdeps/unix/sysv/linux/ia64/sigsuspend.c
deleted file mode 100644
index f8f9563494..0000000000
--- a/sysdeps/unix/sysv/linux/ia64/sigsuspend.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003
-   Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <errno.h>
-#include <signal.h>
-#include <unistd.h>
-
-#include <sysdep-cancel.h>
-#include <sys/syscall.h>
-#include <bp-checks.h>
-
-/* Change the set of blocked signals to SET,
-   wait until a signal arrives, and restore the set of blocked signals.  */
-int
-__sigsuspend (set)
-     const sigset_t *set;
-{
-  /* XXX The size argument hopefully will have to be changed to the
-     real size of the user-level sigset_t.  */
-  if (SINGLE_THREAD_P)
-    return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
-
-  int oldtype = LIBC_CANCEL_ASYNC ();
-
-  int result = INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
-
-  LIBC_CANCEL_RESET (oldtype);
-
-  return result;
-}
-libc_hidden_def (__sigsuspend)
-weak_alias (__sigsuspend, sigsuspend)
-strong_alias (__sigsuspend, __libc_sigsuspend)
diff --git a/sysdeps/unix/sysv/linux/not-cancel.h b/sysdeps/unix/sysv/linux/not-cancel.h
index 4a76335a55..80d33be29c 100644
--- a/sysdeps/unix/sysv/linux/not-cancel.h
+++ b/sysdeps/unix/sysv/linux/not-cancel.h
@@ -81,3 +81,25 @@ extern int __openat64_nocancel (int fd, const char *fname, int oflag,
 # define waitpid_not_cancel(pid, stat_loc, options) \
   INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL)
 #endif
+
+/* Uncancelable pause.  */
+#ifdef __NR_pause
+# define pause_not_cancel() \
+  INLINE_SYSCALL (pause, 0)
+#else
+# define pause_not_cancel() \
+  __pause_nocancel ()
+#endif
+
+/* Uncancelable nanosleep.  */
+#ifdef __NR_nanosleep
+# define nanosleep_not_cancel(requested_time, remaining) \
+  INLINE_SYSCALL (nanosleep, 2, requested_time, remaining)
+#else
+# define nanosleep_not_cancel(requested_time, remaining) \
+  __nanosleep_nocancel (requested_time, remaining)
+#endif
+
+/* Uncancelable sigsuspend.  */
+#define sigsuspend_not_cancel(set) \
+  __sigsuspend_nocancel (set)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/sigsuspend.c b/sysdeps/unix/sysv/linux/s390/s390-64/sigsuspend.c
deleted file mode 100644
index 452f8354d0..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-64/sigsuspend.c
+++ /dev/null
@@ -1,47 +0,0 @@
-/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <errno.h>
-#include <signal.h>
-#include <unistd.h>
-
-#include <sysdep-cancel.h>
-#include <sys/syscall.h>
-
-/* Change the set of blocked signals to SET,
-   wait until a signal arrives, and restore the set of blocked signals.  */
-int
-__sigsuspend (set)
-     const sigset_t *set;
-{
-  /* XXX The size argument hopefully will have to be changed to the
-     real size of the user-level sigset_t.  */
-  if (SINGLE_THREAD_P)
-    return INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
-
-  int oldtype = LIBC_CANCEL_ASYNC ();
-
-  int result = INLINE_SYSCALL (rt_sigsuspend, 2, set, _NSIG / 8);
-
-  LIBC_CANCEL_RESET (oldtype);
-
-  return result;
-}
-libc_hidden_def (__sigsuspend)
-weak_alias (__sigsuspend, sigsuspend)
-strong_alias (__sigsuspend, __libc_sigsuspend)
diff --git a/sysdeps/unix/sysv/linux/sigsuspend.c b/sysdeps/unix/sysv/linux/sigsuspend.c
index 7b9b60911b..adbdfddfdb 100644
--- a/sysdeps/unix/sysv/linux/sigsuspend.c
+++ b/sysdeps/unix/sysv/linux/sigsuspend.c
@@ -56,6 +56,12 @@ do_sigsuspend (const sigset_t *set)
 
   return INLINE_SYSCALL (sigsuspend, 3, 0, 0, set->__val[0]);
 }
+#else
+static inline int __attribute__ ((always_inline))
+do_sigsuspend (const sigset_t *set)
+{
+  return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
+}
 #endif
 
 /* Change the set of blocked signals to SET,
@@ -64,19 +70,6 @@ int
 __sigsuspend (set)
      const sigset_t *set;
 {
-#if __ASSUME_REALTIME_SIGNALS
-  if (SINGLE_THREAD_P)
-    return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
-
-  int oldtype = LIBC_CANCEL_ASYNC ();
-
-  int result = INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set),
-			       _NSIG / 8);
-
-  LIBC_CANCEL_RESET (oldtype);
-
-  return result;
-#else
   if (SINGLE_THREAD_P)
     return do_sigsuspend (set);
 
@@ -87,8 +80,16 @@ __sigsuspend (set)
   LIBC_CANCEL_RESET (oldtype);
 
   return result;
-#endif
 }
 libc_hidden_def (__sigsuspend)
 weak_alias (__sigsuspend, sigsuspend)
 strong_alias (__sigsuspend, __libc_sigsuspend)
+
+#ifndef NO_CANCELLATION
+int
+__sigsuspend_nocancel (set)
+     const sigset_t *set;
+{
+  return do_sigsuspend (set);
+}
+#endif
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c b/sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c
deleted file mode 100644
index 1f06e3d534..0000000000
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../ia64/sigsuspend.c"
diff --git a/sysdeps/unix/sysv/linux/x86_64/sigsuspend.c b/sysdeps/unix/sysv/linux/x86_64/sigsuspend.c
deleted file mode 100644
index 9c5c79e63e..0000000000
--- a/sysdeps/unix/sysv/linux/x86_64/sigsuspend.c
+++ /dev/null
@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/ia64/sigsuspend.c>