diff options
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/sigsetops.h | 77 | ||||
| -rw-r--r-- | sysdeps/generic/sys/ucontext.h | 1 |
2 files changed, 78 insertions, 0 deletions
diff --git a/sysdeps/generic/sigsetops.h b/sysdeps/generic/sigsetops.h new file mode 100644 index 0000000000..e8e5553981 --- /dev/null +++ b/sysdeps/generic/sigsetops.h @@ -0,0 +1,77 @@ +/* __sigset_t manipulators. Generic/BSD version. + Copyright (C) 1991-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SIGSETOPS_H +#define _SIGSETOPS_H 1 + +#include <signal.h> + +/* Return a mask that includes SIG only. The cast to `sigset_t' avoids + overflow if `sigset_t' is wider than `int'. */ +# define __sigmask(sig) (((__sigset_t) 1) << ((sig) - 1)) + +#define __sigemptyset(set) \ + (__extension__ ({ \ + *(set) = (__sigset_t) 0; \ + (void)0; \ + })) +#define __sigfillset(set) \ + (__extension__ ({ \ + *(set) = ~(__sigset_t) 0; \ + (void)0; \ + })) + +# define __sigisemptyset(set) \ + (*(set) == (__sigset_t) 0) + +# define __sigandset(dest, left, right) \ + (__extension__ ({ \ + *(dest) = *(left) & *(right); \ + (void)0; \ + })) + +# define __sigorset(dest, left, right) \ + (__extension__ ({ \ + *(dest) = *(left) | *(right); \ + (void)0; \ + })) +#endif + +/* These macros needn't check for a bogus signal number; + checking is done in the non-__ versions. */ +# define __sigismember(set, sig) \ + (__extension__ ({ \ + __sigset_t __mask = __sigmask (sig); \ + (set) & __mask ? 1 : 0; \ + })) + +# define __sigaddset(set, sig) \ + (__extension__ ({ \ + __sigset_t __mask = __sigmask (sig); \ + (set) |= __mask; \ + (void)0; \ + })) + +# define __sigdelset(set, sig) \ + (__extension__ ({ \ + __sigset_t __mask = __sigmask (sig); \ + (set) &= ~__mask; \ + (void)0; \ + })) + +#endif diff --git a/sysdeps/generic/sys/ucontext.h b/sysdeps/generic/sys/ucontext.h index 052c5401cb..a0602a7ad3 100644 --- a/sysdeps/generic/sys/ucontext.h +++ b/sysdeps/generic/sys/ucontext.h @@ -27,6 +27,7 @@ /* We need the signal context definitions even if they are not exposed by <signal.h>. */ +#include <bits/types/__sigset_t.h> #include <bits/sigcontext.h> #include <bits/sigstack.h> #include <bits/types/struct_sigstack.h> |