Update copyright dates with scripts/update-copyrights.

[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / sigsuspend.c

diff --git a/sysdeps/unix/sysv/linux/sigsuspend.c b/sysdeps/unix/sysv/linux/sigsuspend.c
index 493dfcbf80b052dcffcf8a43648946aae8dcd342..fa871111d40f353fa31e08ac4c927ebbc1e5e549 100644 (file)
--- a/sysdeps/unix/sysv/linux/sigsuspend.c
+++ b/sysdeps/unix/sysv/linux/sigsuspend.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996,1997,1998,1999,2000,2002 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2016 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
@@ -12,57 +12,23 @@
    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.  */
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
 
 #include <errno.h>
 #include <signal.h>
 #include <unistd.h>
 
-#include <sysdep.h>
+#include <sysdep-cancel.h>
 #include <sys/syscall.h>
-#include <bp-checks.h>
-
-#include "kernel-features.h"
-
-extern int __syscall_sigsuspend (int, unsigned long int, unsigned long int);
-extern int __syscall_rt_sigsuspend (const sigset_t *__unbounded, size_t);
-
-
-/* The variable is shared between all wrappers around signal handling
-   functions which have RT equivalents.  The definition is in sigaction.c.  */
-extern int __libc_missing_rt_sigs;
-
 
 /* 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;
+__sigsuspend (const sigset_t *set)
 {
-#if __ASSUME_REALTIME_SIGNALS
-  return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
-#else
-# ifdef __NR_rt_sigsuspend
-  /* First try the RT signals.  */
-  if (!__libc_missing_rt_sigs)
-    {
-      /* XXX The size argument hopefully will have to be changed to the
-        real size of the user-level sigset_t.  */
-      int saved_errno = errno;
-      int result = INLINE_SYSCALL (rt_sigsuspend, 2,
-                                  CHECK_SIGSET (set), _NSIG / 8);
-      if (result >= 0 || errno != ENOSYS)
-       return result;
-
-      __set_errno (saved_errno);
-      __libc_missing_rt_sigs = 1;
-    }
-# endif
-
-  return INLINE_SYSCALL (sigsuspend, 3, 0, 0, set->__val[0]);
-#endif
+  return SYSCALL_CANCEL (rt_sigsuspend, set, _NSIG / 8);
 }
 libc_hidden_def (__sigsuspend)
 weak_alias (__sigsuspend, sigsuspend)
+strong_alias (__sigsuspend, __libc_sigsuspend)