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993b3242 | 1 | /* The proper definitions for Linux/SPARC sigaction. |
2b778ceb | 2 | Copyright (C) 1996-2021 Free Software Foundation, Inc. |
993b3242 UD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
993b3242 UD |
9 | |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
993b3242 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
993b3242 | 18 | |
a1ede3a4 ST |
19 | #ifndef _BITS_SIGACTION_H |
20 | #define _BITS_SIGACTION_H 1 | |
21 | ||
f4017d20 UD |
22 | #ifndef _SIGNAL_H |
23 | # error "Never include <bits/sigaction.h> directly; use <signal.h> instead." | |
24 | #endif | |
25 | ||
7fde904c MF |
26 | #include <bits/wordsize.h> |
27 | ||
993b3242 UD |
28 | /* Structure describing the action to be taken when a signal arrives. */ |
29 | struct sigaction | |
30 | { | |
63ae7b63 | 31 | /* Signal handler. */ |
cd65836b | 32 | #if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED |
63ae7b63 UD |
33 | union |
34 | { | |
35 | /* Used if SA_SIGINFO is not set. */ | |
36 | __sighandler_t sa_handler; | |
37 | /* Used if SA_SIGINFO is set. */ | |
38 | void (*sa_sigaction) (int, siginfo_t *, void *); | |
39 | } | |
40 | __sigaction_handler; | |
41 | # define sa_handler __sigaction_handler.sa_handler | |
42 | # define sa_sigaction __sigaction_handler.sa_sigaction | |
43 | #else | |
993b3242 | 44 | __sighandler_t sa_handler; |
63ae7b63 | 45 | #endif |
993b3242 UD |
46 | |
47 | /* Additional set of signals to be blocked. */ | |
48 | __sigset_t sa_mask; | |
49 | ||
50 | /* Special flags. */ | |
7fde904c | 51 | #if __WORDSIZE == 64 |
a059d359 | 52 | int __glibc_reserved0; |
7fde904c | 53 | #endif |
a059d359 | 54 | int sa_flags; |
ca34d7a7 UD |
55 | |
56 | /* Not used by Linux/Sparc yet. */ | |
bcaad6ee | 57 | void (*sa_restorer) (void); |
993b3242 UD |
58 | }; |
59 | ||
60 | ||
61 | /* Bits in `sa_flags'. */ | |
ca34d7a7 | 62 | #define SA_NOCLDSTOP 0x00000008 /* Don't send SIGCHLD when children stop. */ |
8ce9ea0c | 63 | #define SA_NOCLDWAIT 0x00000100 /* Don't create zombie on child death. */ |
9c4c0024 UD |
64 | #define SA_SIGINFO 0x00000200 /* Invoke signal-catching function with |
65 | three arguments instead of one. */ | |
cd65836b | 66 | #if defined __USE_XOPEN_EXTENDED || defined __USE_MISC |
c94a8080 | 67 | # define SA_ONSTACK 0x00000001 /* Use signal stack by using `sa_restorer'. */ |
33780b6d | 68 | #endif |
cd65836b | 69 | #if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8 |
ca34d7a7 | 70 | # define SA_RESTART 0x00000002 /* Restart syscall on signal return. */ |
cd65836b | 71 | # define SA_NODEFER 0x00000020 /* Don't automatically block the signal when |
ca34d7a7 | 72 | its handler is being executed. */ |
cd65836b JM |
73 | # define SA_RESETHAND 0x00000004 /* Reset to SIG_DFL on entry to handler. */ |
74 | #endif | |
75 | #ifdef __USE_MISC | |
76 | # define SA_INTERRUPT 0x00000010 /* Historical no-op. */ | |
993b3242 UD |
77 | |
78 | /* Some aliases for the SA_ constants. */ | |
cd65836b JM |
79 | # define SA_NOMASK SA_NODEFER |
80 | # define SA_ONESHOT SA_RESETHAND | |
c94a8080 | 81 | # define SA_STACK SA_ONSTACK |
993b3242 UD |
82 | #endif |
83 | ||
84 | /* Values for the HOW argument to `sigprocmask'. */ | |
ca34d7a7 UD |
85 | #define SIG_BLOCK 1 /* Block signals. */ |
86 | #define SIG_UNBLOCK 2 /* Unblock signals. */ | |
87 | #define SIG_SETMASK 4 /* Set the set of blocked signals. */ | |
a1ede3a4 ST |
88 | |
89 | #endif |