1 /* The proper definitions for Linux/SPARC sigaction.
2 Copyright (C) 1996-2017 Free Software Foundation, Inc.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
19 # error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
22 /* Structure describing the action to be taken when a signal arrives. */
26 #ifdef __USE_POSIX199309
29 /* Used if SA_SIGINFO is not set. */
30 __sighandler_t sa_handler
;
31 /* Used if SA_SIGINFO is set. */
32 void (*sa_sigaction
) (int, siginfo_t
*, void *);
35 # define sa_handler __sigaction_handler.sa_handler
36 # define sa_sigaction __sigaction_handler.sa_sigaction
38 __sighandler_t sa_handler
;
41 /* Additional set of signals to be blocked. */
45 int __glibc_reserved0
;
48 /* Not used by Linux/Sparc yet. */
49 void (*sa_restorer
) (void);
53 /* Bits in `sa_flags'. */
54 #define SA_NOCLDSTOP 0x00000008 /* Don't send SIGCHLD when children stop. */
55 #define SA_NOCLDWAIT 0x00000100 /* Don't create zombie on child death. */
56 #define SA_SIGINFO 0x00000200 /* Invoke signal-catching function with
57 three arguments instead of one. */
58 #if defined __USE_UNIX98 || defined __USE_MISC
59 # define SA_ONSTACK 0x00000001 /* Use signal stack by using `sa_restorer'. */
61 #if defined __USE_UNIX98 || defined __USE_XOPEN2K8
62 # define SA_RESTART 0x00000002 /* Restart syscall on signal return. */
63 # define SA_INTERRUPT 0x00000010 /* Historical no-op. */
64 # define SA_NOMASK 0x00000020 /* Don't automatically block the signal when
65 its handler is being executed. */
66 # define SA_ONESHOT 0x00000004 /* Reset to SIG_DFL on entry to handler. */
68 /* Some aliases for the SA_ constants. */
69 # define SA_NODEFER SA_NOMASK
70 # define SA_RESETHAND SA_ONESHOT
71 # define SA_STACK SA_ONSTACK
74 /* Values for the HOW argument to `sigprocmask'. */
75 #define SIG_BLOCK 1 /* Block signals. */
76 #define SIG_UNBLOCK 2 /* Unblock signals. */
77 #define SIG_SETMASK 4 /* Set the set of blocked signals. */