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