1 /* vi: set sw=4 ts=4: */
3 * sigprocmask() for uClibc
5 * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
7 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
10 #include <sys/syscall.h>
12 #if defined __USE_POSIX
17 libc_hidden_proto(sigprocmask)
19 #ifdef __NR_rt_sigprocmask
21 # define __NR___rt_sigprocmask __NR_rt_sigprocmask
22 static __always_inline
23 _syscall4(int, __rt_sigprocmask, int, how, const sigset_t *, set,
24 sigset_t *, oldset, size_t, size)
26 int sigprocmask(int how, const sigset_t * set, sigset_t * oldset)
29 sigset_t local_newmask;
32 * The only thing we have to make sure here is that SIGCANCEL and
33 * SIGSETXID are not blocked.
35 if (set != NULL && (__builtin_expect (__sigismember (set, SIGCANCEL), 0)
37 || __builtin_expect (__sigismember (set, SIGSETXID), 0)
42 __sigdelset (&local_newmask, SIGCANCEL);
44 __sigdelset (&local_newmask, SIGSETXID);
50 return __rt_sigprocmask(how, set, oldset, _NSIG / 8);
56 # define __NR___syscall_sigprocmask __NR_sigprocmask
57 static __always_inline
58 _syscall3(int, __syscall_sigprocmask, int, how, const sigset_t *, set,
61 int sigprocmask(int how, const sigset_t * set, sigset_t * oldset)
64 sigset_t local_newmask;
67 * The only thing we have to make sure here is that SIGCANCEL and
68 * SIGSETXID are not blocked.
70 if (set != NULL && (__builtin_expect (__sigismember (set, SIGCANCEL), 0)
72 || __builtin_expect (__sigismember (set, SIGSETXID), 0)
77 __sigdelset (&local_newmask, SIGCANCEL);
79 __sigdelset (&local_newmask, SIGSETXID);
85 return (__syscall_sigprocmask(how, set, oldset));
88 libc_hidden_def(sigprocmask)