1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI_ASM_X86_SIGNAL_H
3#define _UAPI_ASM_X86_SIGNAL_H
4
5#ifndef __ASSEMBLY__
6#include <linux/types.h>
7#include <linux/time.h>
8#include <linux/compiler.h>
9
10/* Avoid too many header ordering problems. */
11struct siginfo;
12
13#ifndef __KERNEL__
14/* Here we must cater to libcs that poke about in kernel headers. */
15
16#define NSIG 32
17typedef unsigned long sigset_t;
18
19#endif /* __KERNEL__ */
20#endif /* __ASSEMBLY__ */
21
22
23#define SIGHUP 1
24#define SIGINT 2
25#define SIGQUIT 3
26#define SIGILL 4
27#define SIGTRAP 5
28#define SIGABRT 6
29#define SIGIOT 6
30#define SIGBUS 7
31#define SIGFPE 8
32#define SIGKILL 9
33#define SIGUSR1 10
34#define SIGSEGV 11
35#define SIGUSR2 12
36#define SIGPIPE 13
37#define SIGALRM 14
38#define SIGTERM 15
39#define SIGSTKFLT 16
40#define SIGCHLD 17
41#define SIGCONT 18
42#define SIGSTOP 19
43#define SIGTSTP 20
44#define SIGTTIN 21
45#define SIGTTOU 22
46#define SIGURG 23
47#define SIGXCPU 24
48#define SIGXFSZ 25
49#define SIGVTALRM 26
50#define SIGPROF 27
51#define SIGWINCH 28
52#define SIGIO 29
53#define SIGPOLL SIGIO
54/*
55#define SIGLOST 29
56*/
57#define SIGPWR 30
58#define SIGSYS 31
59#define SIGUNUSED 31
60
61/* These should not be considered constants from userland. */
62#define SIGRTMIN 32
63#define SIGRTMAX _NSIG
64
65/*
66 * SA_FLAGS values:
67 *
68 * SA_ONSTACK indicates that a registered stack_t will be used.
69 * SA_RESTART flag to get restarting signals (which were the default long ago)
70 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
71 * SA_RESETHAND clears the handler when the signal is delivered.
72 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
73 * SA_NODEFER prevents the current signal from being masked in the handler.
74 *
75 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
76 * Unix names RESETHAND and NODEFER respectively.
77 */
78#define SA_NOCLDSTOP 0x00000001u
79#define SA_NOCLDWAIT 0x00000002u
80#define SA_SIGINFO 0x00000004u
81#define SA_ONSTACK 0x08000000u
82#define SA_RESTART 0x10000000u
83#define SA_NODEFER 0x40000000u
84#define SA_RESETHAND 0x80000000u
85
86#define SA_NOMASK SA_NODEFER
87#define SA_ONESHOT SA_RESETHAND
88
89#define SA_RESTORER 0x04000000
90
91#define MINSIGSTKSZ 2048
92#define SIGSTKSZ 8192
93
94#include <asm-generic/signal-defs.h>
95
96#ifndef __ASSEMBLY__
97
98
99# ifndef __KERNEL__
100/* Here we must cater to libcs that poke about in kernel headers. */
101#ifdef __i386__
102
103struct sigaction {
104 union {
105 __sighandler_t _sa_handler;
106 void (*_sa_sigaction)(int, struct siginfo *, void *);
107 } _u;
108 sigset_t sa_mask;
109 unsigned long sa_flags;
110 void (*sa_restorer)(void);
111};
112
113#define sa_handler _u._sa_handler
114#define sa_sigaction _u._sa_sigaction
115
116#else /* __i386__ */
117
118struct sigaction {
119 __sighandler_t sa_handler;
120 unsigned long sa_flags;
121 __sigrestore_t sa_restorer;
122 sigset_t sa_mask; /* mask last for extensibility */
123};
124
125#endif /* !__i386__ */
126# endif /* ! __KERNEL__ */
127
128typedef struct sigaltstack {
129 void __user *ss_sp;
130 int ss_flags;
131 size_t ss_size;
132} stack_t;
133
134#endif /* __ASSEMBLY__ */
135
136#endif /* _UAPI_ASM_X86_SIGNAL_H */
137