1 /* Copyright (C) 1993, 1995, 1997 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by David Mosberger (davidm@azstarnet.com).
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
23 /* When there is kernel support for more than 64 signals, we'll have to
24 switch to a new system call convention here. */
26 extern unsigned long __osf_sigprocmask (int how, unsigned long newmask);
29 __sigprocmask (int how, const sigset_t *set, sigset_t *oset)
31 unsigned long int setval;
36 setval = set->__val[0];
41 how = SIG_BLOCK; /* ensure blocked mask doesn't get changed */
43 result = __osf_sigprocmask (how, setval);
45 /* If there are ever more than 63 signals, we need to recode this
46 in assembler since we wouldn't be able to distinguish a mask of
47 all 1s from -1, but for now, we're doing just fine... */
52 oset->__val[0] = result;
53 result = _SIGSET_NWORDS;
55 oset->__val[result] = 0;
60 weak_alias (__sigprocmask, sigprocmask);