1 /* Copyright (C) 1993, 1995, 1997, 2003 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 Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the 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 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
24 /* When there is kernel support for more than 64 signals, we'll have to
25 switch to a new system call convention here. */
28 __sigprocmask (int how, const sigset_t *set, sigset_t *oset)
30 unsigned long int setval;
34 setval = set->__val[0];
38 how = SIG_BLOCK; /* ensure blocked mask doesn't get changed */
41 result = INLINE_SYSCALL (osf_sigprocmask, 2, how, setval);
43 /* If there are ever more than 63 signals, we need to recode this
44 in assembler since we wouldn't be able to distinguish a mask of
45 all 1s from -1, but for now, we're doing just fine... */
50 oset->__val[0] = result;
51 result = _SIGSET_NWORDS;
53 oset->__val[result] = 0;
58 weak_alias (__sigprocmask, sigprocmask);