1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _UAPI_ASMAXP_SIGNAL_H
3#define _UAPI_ASMAXP_SIGNAL_H
4
5#include <linux/types.h>
6
7/* Avoid too many header ordering problems.  */
8struct siginfo;
9
10#ifndef __KERNEL__
11/* Here we must cater to libcs that poke about in kernel headers.  */
12
13#define NSIG		32
14typedef unsigned long sigset_t;
15
16#endif /* __KERNEL__ */
17
18
19/*
20 * Linux/AXP has different signal numbers that Linux/i386: I'm trying
21 * to make it OSF/1 binary compatible, at least for normal binaries.
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 SIGEMT		 7
30#define SIGFPE		 8
31#define SIGKILL		 9
32#define SIGBUS		10
33#define SIGSEGV		11
34#define SIGSYS		12
35#define SIGPIPE		13
36#define SIGALRM		14
37#define SIGTERM		15
38#define SIGURG		16
39#define SIGSTOP		17
40#define SIGTSTP		18
41#define SIGCONT		19
42#define SIGCHLD		20
43#define SIGTTIN		21
44#define SIGTTOU		22
45#define SIGIO		23
46#define SIGXCPU		24
47#define SIGXFSZ		25
48#define SIGVTALRM	26
49#define SIGPROF		27
50#define SIGWINCH	28
51#define SIGINFO		29
52#define SIGUSR1		30
53#define SIGUSR2		31
54
55#define SIGPOLL	SIGIO
56#define SIGPWR	SIGINFO
57#define SIGIOT	SIGABRT
58
59/* These should not be considered constants from userland.  */
60#define SIGRTMIN	32
61#define SIGRTMAX	_NSIG
62
63/*
64 * SA_FLAGS values:
65 *
66 * SA_ONSTACK indicates that a registered stack_t will be used.
67 * SA_RESTART flag to get restarting signals (which were the default long ago)
68 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
69 * SA_RESETHAND clears the handler when the signal is delivered.
70 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
71 * SA_NODEFER prevents the current signal from being masked in the handler.
72 *
73 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
74 * Unix names RESETHAND and NODEFER respectively.
75 */
76
77#define SA_ONSTACK	0x00000001
78#define SA_RESTART	0x00000002
79#define SA_NOCLDSTOP	0x00000004
80#define SA_NODEFER	0x00000008
81#define SA_RESETHAND	0x00000010
82#define SA_NOCLDWAIT	0x00000020
83#define SA_SIGINFO	0x00000040
84
85#define SA_ONESHOT	SA_RESETHAND
86#define SA_NOMASK	SA_NODEFER
87
88#define MINSIGSTKSZ	4096
89#define SIGSTKSZ	16384
90
91#define SIG_BLOCK          1	/* for blocking signals */
92#define SIG_UNBLOCK        2	/* for unblocking signals */
93#define SIG_SETMASK        3	/* for setting the signal mask */
94
95#include <asm-generic/signal-defs.h>
96
97#ifndef __KERNEL__
98/* Here we must cater to libcs that poke about in kernel headers.  */
99
100struct sigaction {
101	union {
102	  __sighandler_t	_sa_handler;
103	  void (*_sa_sigaction)(int, struct siginfo *, void *);
104	} _u;
105	sigset_t	sa_mask;
106	int		sa_flags;
107};
108
109#define sa_handler	_u._sa_handler
110#define sa_sigaction	_u._sa_sigaction
111
112#endif /* __KERNEL__ */
113
114typedef struct sigaltstack {
115	void __user *ss_sp;
116	int ss_flags;
117	size_t ss_size;
118} stack_t;
119
120/* sigstack(2) is deprecated, and will be withdrawn in a future version
121   of the X/Open CAE Specification.  Use sigaltstack instead.  It is only
122   implemented here for OSF/1 compatibility.  */
123
124struct sigstack {
125	void __user *ss_sp;
126	int ss_onstack;
127};
128
129
130#endif /* _UAPI_ASMAXP_SIGNAL_H */
131