1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_SIGNAL_TYPES_H
3#define _LINUX_SIGNAL_TYPES_H
4
5/*
6 * Basic signal handling related data type definitions:
7 */
8
9#include <linux/list.h>
10#include <uapi/linux/signal.h>
11
12typedef struct kernel_siginfo {
13 __SIGINFO;
14} kernel_siginfo_t;
15
16/*
17 * Real Time signals may be queued.
18 */
19
20struct sigqueue {
21 struct list_head list;
22 int flags;
23 kernel_siginfo_t info;
24 struct user_struct *user;
25};
26
27/* flags values. */
28#define SIGQUEUE_PREALLOC 1
29
30struct sigpending {
31 struct list_head list;
32 sigset_t signal;
33};
34
35struct sigaction {
36#ifndef __ARCH_HAS_IRIX_SIGACTION
37 __sighandler_t sa_handler;
38 unsigned long sa_flags;
39#else
40 unsigned int sa_flags;
41 __sighandler_t sa_handler;
42#endif
43#ifdef __ARCH_HAS_SA_RESTORER
44 __sigrestore_t sa_restorer;
45#endif
46 sigset_t sa_mask; /* mask last for extensibility */
47};
48
49struct k_sigaction {
50 struct sigaction sa;
51#ifdef __ARCH_HAS_KA_RESTORER
52 __sigrestore_t ka_restorer;
53#endif
54};
55
56#ifdef CONFIG_OLD_SIGACTION
57struct old_sigaction {
58 __sighandler_t sa_handler;
59 old_sigset_t sa_mask;
60 unsigned long sa_flags;
61 __sigrestore_t sa_restorer;
62};
63#endif
64
65struct ksignal {
66 struct k_sigaction ka;
67 kernel_siginfo_t info;
68 int sig;
69};
70
71#endif /* _LINUX_SIGNAL_TYPES_H */
72