1/*	$NetBSD: linux_signal.h,v 1.1 2021/09/23 06:56:27 ryo Exp $	*/
2
3/*-
4 * Copyright (c) 2021 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef _AARCH64_LINUX_SIGNAL_H
30#define _AARCH64_LINUX_SIGNAL_H
31
32#define LINUX_SIGHUP		1
33#define LINUX_SIGINT		2
34#define LINUX_SIGQUIT		3
35#define LINUX_SIGILL		4
36#define LINUX_SIGTRAP		5
37#define LINUX_SIGABRT		6
38#define LINUX_SIGIOT		6
39#define LINUX_SIGBUS		7
40#define LINUX_SIGFPE		8
41#define LINUX_SIGKILL		9
42#define LINUX_SIGUSR1		10
43#define LINUX_SIGSEGV		11
44#define LINUX_SIGUSR2		12
45#define LINUX_SIGPIPE		13
46#define LINUX_SIGALRM		14
47#define LINUX_SIGTERM		15
48#define LINUX_SIGSTKFLT		16
49#define LINUX_SIGCHLD		17
50#define LINUX_SIGCONT		18
51#define LINUX_SIGSTOP		19
52#define LINUX_SIGTSTP		20
53#define LINUX_SIGTTIN		21
54#define LINUX_SIGTTOU		22
55#define LINUX_SIGURG		23
56#define LINUX_SIGXCPU		24
57#define LINUX_SIGXFSZ		25
58#define LINUX_SIGVTALRM		26
59#define LINUX_SIGPROF		27
60#define LINUX_SIGWINCH		28
61#define LINUX_SIGIO		29
62#define LINUX_SIGPWR		30
63#define LINUX_SIGSYS		31
64/* SIGCANCEL=32, SIGSETXID=33 */
65#define LINUX_SIGRTMIN		34
66#define LINUX_SIGRTMAX		64
67
68
69#define LINUX_SS_ONSTACK	1
70#define LINUX_SS_DISABLE	2
71
72#define LINUX_SA_NOCLDSTOP	0x00000001
73#define LINUX_SA_NOCLDWAIT	0x00000002
74#define LINUX_SA_SIGINFO	0x00000004
75#define LINUX_SA_ONSTACK	0x08000000
76#define LINUX_SA_RESTART	0x10000000
77#define LINUX_SA_NOMASK		0x40000000
78#define LINUX_SA_ONESHOT	0x80000000
79#define LINUX_SA_ALLBITS	0xd8000007
80
81
82#define LINUX_SIG_BLOCK		0
83#define LINUX_SIG_UNBLOCK	1
84#define LINUX_SIG_SETMASK	2
85
86#define LINUX__NSIG		(LINUX_SIGRTMAX + 1)
87#define LINUX__NSIG_BPW		64
88#define LINUX__NSIG_WORDS	(LINUX__NSIG / LINUX__NSIG_BPW)
89
90#define	LINUX_MINSIGSTKSZ	2048
91
92typedef struct {
93	unsigned long sig[LINUX__NSIG_WORDS];
94} linux_sigset_t;
95
96typedef void (*linux_handler_t)(int);
97
98struct linux_sigaction {
99	linux_handler_t linux_sa_handler;
100	unsigned long linux_sa_flags;
101
102	/*
103	 * linux/arm64 doesn't use sa_restorer,
104	 * but struct sigaction has it for compatibility.
105	 */
106	void (*linux_sa_restorer)(void);
107
108	linux_sigset_t linux_sa_mask;
109};
110
111typedef struct linux_sigaltstack {
112	void *ss_sp;
113	int ss_flags;
114	size_t ss_size;
115} linux_stack_t;
116
117#endif /* !_AARCH64_LINUX_SIGNAL_H */
118