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/* Copyright (C) 2008 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008.
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 <inline-syscall.h>
#include <signal.h>
#include <memory.h>
DECLARE_INLINE_SYSCALL (int64_t, lwp_sigmask, int how, unsigned int bits0,
unsigned int bits1);
int
__sigprocmask (how, set, oset)
int how;
const sigset_t *set;
sigset_t *oset;
{
/* we don't want people blocking SIGCANCEL */
sigset_t tmpset;
if (set != NULL && __builtin_expect (__sigismember(set, SIGCANCEL), 0))
{
memcpy (&tmpset, set, sizeof(sigset_t));
__sigdelset (&tmpset, SIGCANCEL);
set = &tmpset;
}
/* we need to convert from sigset_t to two bit fields */
unsigned int bits0, bits1;
if (set)
{
bits0 = set->__sigbits[0];
bits1 = set->__sigbits[1];
}
else
{
bits0 = bits1 = how = 0;
}
/* we call lwp_sigmask to set the per-thread sigmask */
rval_t result;
result.rval64 = INLINE_SYSCALL (lwp_sigmask, 3, how, bits0, bits1);
/* now we need to convert from two bit fields to sigset_t */
if (oset)
{
oset->__sigbits[0] = result.rval1;
oset->__sigbits[1] = result.rval2;
oset->__sigbits[2] = oset->__sigbits[3] = 0;
}
return 0;
}
weak_alias (__sigprocmask, sigprocmask)
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