1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI__ASM_GENERIC_SIGNAL_H
3#define _UAPI__ASM_GENERIC_SIGNAL_H
4
5#include <linux/types.h>
6
7#define _NSIG		64
8#define _NSIG_BPW	__BITS_PER_LONG
9#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
10
11#define SIGHUP		 1
12#define SIGINT		 2
13#define SIGQUIT		 3
14#define SIGILL		 4
15#define SIGTRAP		 5
16#define SIGABRT		 6
17#define SIGIOT		 6
18#define SIGBUS		 7
19#define SIGFPE		 8
20#define SIGKILL		 9
21#define SIGUSR1		10
22#define SIGSEGV		11
23#define SIGUSR2		12
24#define SIGPIPE		13
25#define SIGALRM		14
26#define SIGTERM		15
27#define SIGSTKFLT	16
28#define SIGCHLD		17
29#define SIGCONT		18
30#define SIGSTOP		19
31#define SIGTSTP		20
32#define SIGTTIN		21
33#define SIGTTOU		22
34#define SIGURG		23
35#define SIGXCPU		24
36#define SIGXFSZ		25
37#define SIGVTALRM	26
38#define SIGPROF		27
39#define SIGWINCH	28
40#define SIGIO		29
41#define SIGPOLL		SIGIO
42/*
43#define SIGLOST		29
44*/
45#define SIGPWR		30
46#define SIGSYS		31
47#define	SIGUNUSED	31
48
49/* These should not be considered constants from userland.  */
50#define SIGRTMIN	32
51#ifndef SIGRTMAX
52#define SIGRTMAX	_NSIG
53#endif
54
55/*
56 * SA_FLAGS values:
57 *
58 * SA_ONSTACK indicates that a registered stack_t will be used.
59 * SA_RESTART flag to get restarting signals (which were the default long ago)
60 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
61 * SA_RESETHAND clears the handler when the signal is delivered.
62 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
63 * SA_NODEFER prevents the current signal from being masked in the handler.
64 *
65 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
66 * Unix names RESETHAND and NODEFER respectively.
67 */
68#define SA_NOCLDSTOP	0x00000001
69#define SA_NOCLDWAIT	0x00000002
70#define SA_SIGINFO	0x00000004
71#define SA_ONSTACK	0x08000000
72#define SA_RESTART	0x10000000
73#define SA_NODEFER	0x40000000
74#define SA_RESETHAND	0x80000000
75
76#define SA_NOMASK	SA_NODEFER
77#define SA_ONESHOT	SA_RESETHAND
78
79/*
80 * New architectures should not define the obsolete
81 *	SA_RESTORER	0x04000000
82 */
83
84#if !defined MINSIGSTKSZ || !defined SIGSTKSZ
85#define MINSIGSTKSZ	2048
86#define SIGSTKSZ	8192
87#endif
88
89#ifndef __ASSEMBLY__
90typedef struct {
91	unsigned long sig[_NSIG_WORDS];
92} sigset_t;
93
94/* not actually used, but required for linux/syscalls.h */
95typedef unsigned long old_sigset_t;
96
97#include <asm-generic/signal-defs.h>
98
99#ifdef SA_RESTORER
100#define __ARCH_HAS_SA_RESTORER
101#endif
102
103#ifndef __KERNEL__
104struct sigaction {
105	__sighandler_t sa_handler;
106	unsigned long sa_flags;
107#ifdef SA_RESTORER
108	__sigrestore_t sa_restorer;
109#endif
110	sigset_t sa_mask;		/* mask last for extensibility */
111};
112#endif
113
114typedef struct sigaltstack {
115	void __user *ss_sp;
116	int ss_flags;
117	size_t ss_size;
118} stack_t;
119
120#endif /* __ASSEMBLY__ */
121
122#endif /* _UAPI__ASM_GENERIC_SIGNAL_H */
123