* sysdeps/unix/sysv/linux/ia64/sigsuspend.c: File removed.

* sysdeps/unix/sysv/linux/x86_64/sigsuspend.c: File removed.
	* sysdeps/unix/sysv/linux/s390/s390-64/sigsuspend.c: File removed.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c: File removed.

	* sysdeps/unix/sysv/linux/not-cancel.h (pause_not_cancel): New macro.
	(nanosleep_not_cancel): New macro.
	(sigsuspend_not_cancel): new macro.
	* sysdeps/unix/sysv/linux/sigsuspend.c [__ASSUME_REALTIME_SIGNALS]
	(do_sigsuspend): Define as inline.
	(__sigsuspend): Always use do_sigsuspend.
	[! NO_CANCELLATION] (__sigsuspend_nocancel): New function.
	* include/signal.h: Declare __sigsuspend_nocancel.
	* sysdeps/posix/pause.c
	[! NO_CANCELLATION] (__pause_nocancel): New function.

	* include/unistd.h (__pause_nocancel): Add attribute_hidden.
	* include/time.h (__nanosleep_nocancel): Likewise.

ChangeLog

@@ -1,3 +1,24 @@
+2006-07-30  Roland McGrath  <roland@redhat.com>
+
+	* sysdeps/unix/sysv/linux/ia64/sigsuspend.c: File removed.
+	* sysdeps/unix/sysv/linux/x86_64/sigsuspend.c: File removed.
+	* sysdeps/unix/sysv/linux/s390/s390-64/sigsuspend.c: File removed.
+	* sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c: File removed.
+
+	* sysdeps/unix/sysv/linux/not-cancel.h (pause_not_cancel): New macro.
+	(nanosleep_not_cancel): New macro.
+	(sigsuspend_not_cancel): new macro.
+	* sysdeps/unix/sysv/linux/sigsuspend.c [__ASSUME_REALTIME_SIGNALS]
+	(do_sigsuspend): Define as inline.
+	(__sigsuspend): Always use do_sigsuspend.
+	[! NO_CANCELLATION] (__sigsuspend_nocancel): New function.
+	* include/signal.h: Declare __sigsuspend_nocancel.
+	* sysdeps/posix/pause.c
+	[! NO_CANCELLATION] (__pause_nocancel): New function.
+
+	* include/unistd.h (__pause_nocancel): Add attribute_hidden.
+	* include/time.h (__nanosleep_nocancel): Likewise.
+
 2006-07-30  Ulrich Drepper  <drepper@redhat.com>
 
 	* locale/programs/localedef.c (add_to_readlist): Rename local

include/signal.h

@@ -26,6 +26,9 @@ extern int __sigprocmask (int __how,
 			  __const sigset_t *__set, sigset_t *__oset);
 extern int __sigsuspend (__const sigset_t *__set);
 libc_hidden_proto (__sigsuspend)
+#ifndef NO_CANCELLATION
+extern int __sigsuspend_nocancel (__const sigset_t *__set) attribute_hidden;
+#endif
 extern int __sigwait (__const sigset_t *__set, int *__sig);
 libc_hidden_proto (__sigwait)
 extern int __sigwaitinfo (__const sigset_t *__set, siginfo_t *__info);

nptl/ChangeLog

@@ -1,3 +1,16 @@
+2006-07-30  Roland McGrath  <roland@redhat.com>
+
+	* Makefile (libpthread-routines): Add ptw-sigsuspend.
+
+	* sysdeps/unix/sysv/linux/i386/not-cancel.h
+	(pause_not_cancel): New macro.
+	(nanosleep_not_cancel): New macro.
+	(sigsuspend_not_cancel): New macro.
+	* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Use
+	nanosleep_not_cancel macro from <not-cancel.h>.
+	* pthread_mutex_lock.c (__pthread_mutex_lock): Use pause_not_cancel
+	macro from <not-cancel.h>.
+
 2006-07-28  Ulrich Drepper  <drepper@redhat.com>
 	    Jakub Jelinek  <jakub@redhat.com>
 

nptl/Makefile

@@ -108,7 +108,7 @@ libpthread-routines = init vars events version \
 		      ptw-msync ptw-nanosleep ptw-open ptw-open64 ptw-pause \
 		      ptw-pread ptw-pread64 ptw-pwrite ptw-pwrite64 \
 		      ptw-tcdrain ptw-wait ptw-waitpid ptw-msgrcv ptw-msgsnd \
-		      ptw-sigwait \
+		      ptw-sigwait ptw-sigsuspend \
 		      pt-raise pt-system \
 		      flockfile ftrylockfile funlockfile \
 		      sigaction \

nptl/pthread_mutex_lock.c

@@ -21,6 +21,7 @@
 #include <errno.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <not-cancel.h>
 #include "pthreadP.h"
 #include <lowlevellock.h>
 
@@ -278,7 +279,7 @@ __pthread_mutex_lock (mutex)
 
 		/* Delay the thread indefinitely.  */
 		while (1)
-		  __pause_nocancel ();
+		  pause_not_cancel ();
 	      }
 
 	    oldval = mutex->__data.__lock;

nptl/pthread_mutex_timedlock.c

@@ -19,8 +19,10 @@
 
 #include <assert.h>
 #include <errno.h>
+#include <time.h>
 #include "pthreadP.h"
 #include <lowlevellock.h>
+#include <not-cancel.h>
 
 
 int
@@ -281,7 +283,7 @@ pthread_mutex_timedlock (mutex, abstime)
 			--reltime.tv_sec;
 		      }
 		    if (reltime.tv_sec >= 0)
-		      while (__nanosleep_nocancel (&reltime, &reltime) != 0)
+		      while (nanosleep_not_cancel (&reltime, &reltime) != 0)
 			continue;
 
 		    return ETIMEDOUT;

nptl/sysdeps/unix/sysv/linux/i386/not-cancel.h

@@ -91,3 +91,15 @@ 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.  */
+#define pause_not_cancel() \
+  __pause_nocancel ()
+
+/* Uncancelable nanosleep.  */
+#define nanosleep_not_cancel(requested_time, remaining) \
+  __nanosleep_nocancel (requested_time, remaining)
+
+/* Uncancelable sigsuspend.  */
+#define sigsuspend_not_cancel(set) \
+  __sigsuspend_nocancel (set)

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

sysdeps/unix/sysv/linux/ia64/sigsuspend.c

@@ -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)

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)

sysdeps/unix/sysv/linux/s390/s390-64/sigsuspend.c

@@ -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)

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

sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c

@@ -1 +0,0 @@
-#include "../../ia64/sigsuspend.c"

sysdeps/unix/sysv/linux/x86_64/sigsuspend.c

@@ -1 +0,0 @@
-#include <sysdeps/unix/sysv/linux/ia64/sigsuspend.c>