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/* vi: set sw=4 ts=4: */
/*
* sigprocmask() for uClibc
*
* Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
*
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#include <sys/syscall.h>
#if defined __USE_POSIX
#include <signal.h>
#undef sigprocmask
libc_hidden_proto(sigprocmask)
#ifdef __NR_rt_sigprocmask
# define __NR___rt_sigprocmask __NR_rt_sigprocmask
static __always_inline
_syscall4(int, __rt_sigprocmask, int, how, const sigset_t *, set,
sigset_t *, oldset, size_t, size)
int sigprocmask(int how, const sigset_t * set, sigset_t * oldset)
{
#ifdef SIGCANCEL
sigset_t local_newmask;
/*
* The only thing we have to make sure here is that SIGCANCEL and
* SIGSETXID are not blocked.
*/
if (set != NULL && (__builtin_expect (__sigismember (set, SIGCANCEL), 0)
# ifdef SIGSETXID
|| __builtin_expect (__sigismember (set, SIGSETXID), 0)
# endif
))
{
local_newmask = *set;
__sigdelset (&local_newmask, SIGCANCEL);
# ifdef SIGSETXID
__sigdelset (&local_newmask, SIGSETXID);
# endif
set = &local_newmask;
}
#endif
return __rt_sigprocmask(how, set, oldset, _NSIG / 8);
}
#else
# define __NR___syscall_sigprocmask __NR_sigprocmask
static __always_inline
_syscall3(int, __syscall_sigprocmask, int, how, const sigset_t *, set,
sigset_t *, oldset)
int sigprocmask(int how, const sigset_t * set, sigset_t * oldset)
{
#ifdef SIGCANCEL
sigset_t local_newmask;
/*
* The only thing we have to make sure here is that SIGCANCEL and
* SIGSETXID are not blocked.
*/
if (set != NULL && (__builtin_expect (__sigismember (set, SIGCANCEL), 0)
# ifdef SIGSETXID
|| __builtin_expect (__sigismember (set, SIGSETXID), 0)
# endif
))
{
local_newmask = *set;
__sigdelset (&local_newmask, SIGCANCEL);
# ifdef SIGSETXID
__sigdelset (&local_newmask, SIGSETXID);
# endif
set = &local_newmask;
}
#endif
return (__syscall_sigprocmask(how, set, oldset));
}
#endif
libc_hidden_def(sigprocmask)
#endif
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