1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * include/asm-xtensa/signal.h
4 *
5 * Swiped from SH.
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License.  See the file "COPYING" in the main directory of this archive
9 * for more details.
10 *
11 * Copyright (C) 2001 - 2005 Tensilica Inc.
12 */
13
14#ifndef _UAPI_XTENSA_SIGNAL_H
15#define _UAPI_XTENSA_SIGNAL_H
16
17
18#define _NSIG		64
19#define _NSIG_BPW	32
20#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
21
22#ifndef __ASSEMBLY__
23
24#include <linux/types.h>
25
26/* Avoid too many header ordering problems.  */
27struct siginfo;
28typedef unsigned long old_sigset_t;		/* at least 32 bits */
29typedef struct {
30	unsigned long sig[_NSIG_WORDS];
31} sigset_t;
32
33#endif
34
35#define SIGHUP		 1
36#define SIGINT		 2
37#define SIGQUIT		 3
38#define SIGILL		 4
39#define SIGTRAP		 5
40#define SIGABRT		 6
41#define SIGIOT		 6
42#define SIGBUS		 7
43#define SIGFPE		 8
44#define SIGKILL		 9
45#define SIGUSR1		10
46#define SIGSEGV		11
47#define SIGUSR2		12
48#define SIGPIPE		13
49#define SIGALRM		14
50#define SIGTERM		15
51#define SIGSTKFLT	16
52#define SIGCHLD		17
53#define SIGCONT		18
54#define SIGSTOP		19
55#define SIGTSTP		20
56#define SIGTTIN		21
57#define SIGTTOU		22
58#define SIGURG		23
59#define SIGXCPU		24
60#define SIGXFSZ		25
61#define SIGVTALRM	26
62#define SIGPROF		27
63#define SIGWINCH	28
64#define SIGIO		29
65#define SIGPOLL		SIGIO
66/* #define SIGLOST		29 */
67#define SIGPWR		30
68#define SIGSYS		31
69#define	SIGUNUSED	31
70
71/* These should not be considered constants from userland.  */
72#define SIGRTMIN	32
73#define SIGRTMAX	(_NSIG-1)
74
75/*
76 * SA_FLAGS values:
77 *
78 * SA_ONSTACK indicates that a registered stack_t will be used.
79 * SA_RESTART flag to get restarting signals (which were the default long ago)
80 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
81 * SA_RESETHAND clears the handler when the signal is delivered.
82 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
83 * SA_NODEFER prevents the current signal from being masked in the handler.
84 *
85 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
86 * Unix names RESETHAND and NODEFER respectively.
87 */
88#define SA_NOCLDSTOP	0x00000001
89#define SA_NOCLDWAIT	0x00000002 /* not supported yet */
90#define SA_SIGINFO	0x00000004
91#define SA_ONSTACK	0x08000000
92#define SA_RESTART	0x10000000
93#define SA_NODEFER	0x40000000
94#define SA_RESETHAND	0x80000000
95
96#define SA_NOMASK	SA_NODEFER
97#define SA_ONESHOT	SA_RESETHAND
98
99#define SA_RESTORER	0x04000000
100
101#define MINSIGSTKSZ	2048
102#define SIGSTKSZ	8192
103
104#ifndef __ASSEMBLY__
105
106#include <asm-generic/signal-defs.h>
107
108#ifndef __KERNEL__
109
110/* Here we must cater to libcs that poke about in kernel headers.  */
111
112struct sigaction {
113	union {
114	  __sighandler_t _sa_handler;
115	  void (*_sa_sigaction)(int, struct siginfo *, void *);
116	} _u;
117	sigset_t sa_mask;
118	unsigned long sa_flags;
119	void (*sa_restorer)(void);
120};
121
122#define sa_handler	_u._sa_handler
123#define sa_sigaction	_u._sa_sigaction
124
125#endif /* __KERNEL__ */
126
127typedef struct sigaltstack {
128	void *ss_sp;
129	int ss_flags;
130	size_t ss_size;
131} stack_t;
132
133#endif	/* __ASSEMBLY__ */
134#endif /* _UAPI_XTENSA_SIGNAL_H */
135