1 /* 	$NetBSD: linux_signal.h,v 1.9 2008/04/28 20:23:42 martin Exp $	*/
2 
3 /*-
4  * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Frank van der Linden and Eric Haszlakiewicz.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _ARM_LINUX_SIGNAL_H
33 #define _ARM_LINUX_SIGNAL_H
34 
35 #define LINUX_SIGHUP	 1
36 #define LINUX_SIGINT	 2
37 #define LINUX_SIGQUIT	 3
38 #define LINUX_SIGILL	 4
39 #define LINUX_SIGTRAP	 5
40 #define LINUX_SIGABRT	 6
41 #define LINUX_SIGIOT	 6
42 #define LINUX_SIGBUS	 7
43 #define LINUX_SIGFPE	 8
44 #define LINUX_SIGKILL	 9
45 #define LINUX_SIGUSR1	10
46 #define LINUX_SIGSEGV	11
47 #define LINUX_SIGUSR2	12
48 #define LINUX_SIGPIPE	13
49 #define LINUX_SIGALRM	14
50 #define LINUX_SIGTERM	15
51 #define LINUX_SIGSTKFLT	16
52 #define LINUX_SIGCHLD	17
53 #define LINUX_SIGCONT	18
54 #define LINUX_SIGSTOP	19
55 #define LINUX_SIGTSTP	20
56 #define LINUX_SIGTTIN	21
57 #define LINUX_SIGTTOU	22
58 #define LINUX_SIGURG	23
59 #define LINUX_SIGXCPU	24
60 #define LINUX_SIGXFSZ	25
61 #define LINUX_SIGVTALRM	26
62 #define LINUX_SIGPROF	27
63 #define LINUX_SIGWINCH	28
64 #define LINUX_SIGIO	29
65 #define LINUX_SIGPWR	30
66 #define LINUX_SIGSYS	31
67 #define LINUX_SIGUNUSED	31
68 #define LINUX_NSIG	32
69 
70 /* Min/max real-time linux signal */
71 #define LINUX_SIGRTMIN		32
72 #define LINUX_SIGRTMAX		(LINUX__NSIG - 1)
73 
74 #define LINUX__NSIG 		64
75 #define LINUX__NSIG_BPW		32
76 #define LINUX__NSIG_WORDS	(LINUX__NSIG / LINUX__NSIG_BPW)
77 
78 #define LINUX_SIG_BLOCK		0
79 #define LINUX_SIG_UNBLOCK	1
80 #define LINUX_SIG_SETMASK	2
81 
82 /* sa_flags */
83 #define LINUX_SA_NOCLDSTOP	0x00000001
84 #define LINUX_SA_NOCLDWAIT	0x00000002
85 #define LINUX_SA_SIGINFO	0x00000004
86 #define LINUX_SA_RESTORER	0x04000000
87 #define LINUX_SA_ONSTACK	0x08000000
88 #define LINUX_SA_RESTART	0x10000000
89 #define LINUX_SA_INTERRUPT	0x20000000
90 #define LINUX_SA_NOMASK		0x40000000
91 #define LINUX_SA_ONESHOT	0x80000000
92 #define LINUX_SA_ALLBITS	0xfc000007
93 
94 #define LINUX_MINSIGSTKSZ	2048
95 
96 typedef void	(*linux_handler_t)(int);
97 
98 typedef u_long	linux_old_sigset_t;
99 typedef struct {
100 	u_long sig[LINUX__NSIG_WORDS];
101 } linux_sigset_t;
102 
103 struct linux_old_sigaction {
104 	linux_handler_t		linux_sa_handler;
105 	linux_old_sigset_t	linux_sa_mask;
106 	u_long			linux_sa_flags;
107 	void			(*linux_sa_restorer)(void);
108 };
109 
110 /* Used in rt_* calls */
111 struct linux_sigaction {
112 	linux_handler_t		linux_sa_handler;
113 	u_long			linux_sa_flags;
114 	void			(*linux_sa_restorer)(void);
115 	linux_sigset_t		linux_sa_mask;
116 };
117 
118 struct linux_k_sigaction {
119 	struct linux_sigaction sa;
120 #define k_sa_restorer	sa.linux_sa_restorer
121 };
122 
123 #define	LINUX_SS_ONSTACK	1
124 #define	LINUX_SS_DISABLE	2
125 
126 #define	LINUX_MINSIGSTKSZ	2048
127 #define	LINUX_SIGSTKSZ		8192
128 
129 struct linux_sigaltstack {
130 	void *ss_sp;
131 	int ss_flags;
132 	size_t ss_size;
133 };
134 
135 #endif /* !_ARM_LINUX_SIGNAL_H */
136