1 /* The proper definitions for Linux/SPARC sigaction.
2 Copyright (C) 1996-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
20 # error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
23 #include <bits/wordsize.h>
25 /* Structure describing the action to be taken when a signal arrives. */
29 #ifdef __USE_POSIX199309
32 /* Used if SA_SIGINFO is not set. */
33 __sighandler_t sa_handler
;
34 /* Used if SA_SIGINFO is set. */
35 void (*sa_sigaction
) (int, siginfo_t
*, void *);
38 # define sa_handler __sigaction_handler.sa_handler
39 # define sa_sigaction __sigaction_handler.sa_sigaction
41 __sighandler_t sa_handler
;
44 /* Additional set of signals to be blocked. */
49 int __glibc_reserved0
;
53 /* Not used by Linux/Sparc yet. */
54 void (*sa_restorer
) (void);
58 /* Bits in `sa_flags'. */
59 #define SA_NOCLDSTOP 0x00000008 /* Don't send SIGCHLD when children stop. */
60 #define SA_NOCLDWAIT 0x00000100 /* Don't create zombie on child death. */
61 #define SA_SIGINFO 0x00000200 /* Invoke signal-catching function with
62 three arguments instead of one. */
63 #if defined __USE_UNIX98 || defined __USE_MISC
64 # define SA_ONSTACK 0x00000001 /* Use signal stack by using `sa_restorer'. */
66 #if defined __USE_UNIX98 || defined __USE_XOPEN2K8
67 # define SA_RESTART 0x00000002 /* Restart syscall on signal return. */
68 # define SA_INTERRUPT 0x00000010 /* Historical no-op. */
69 # define SA_NOMASK 0x00000020 /* Don't automatically block the signal when
70 its handler is being executed. */
71 # define SA_ONESHOT 0x00000004 /* Reset to SIG_DFL on entry to handler. */
73 /* Some aliases for the SA_ constants. */
74 # define SA_NODEFER SA_NOMASK
75 # define SA_RESETHAND SA_ONESHOT
76 # define SA_STACK SA_ONSTACK
79 /* Values for the HOW argument to `sigprocmask'. */
80 #define SIG_BLOCK 1 /* Block signals. */
81 #define SIG_UNBLOCK 2 /* Unblock signals. */
82 #define SIG_SETMASK 4 /* Set the set of blocked signals. */