/* 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