1 /*        $NetBSD: linux_signal.h,v 1.6 2024/10/01 16:35:42 riastradh Exp $ */
2 
3 /*-
4  * Copyright (c) 2005 Emmanuel Dreyfus, all rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *        This product includes software developed by Emmanuel Dreyfus
17  * 4. The name of the author may not be used to endorse or promote
18  *    products derived from this software without specific prior written
19  *    permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #ifndef _AMD64_LINUX_SIGNAL_H
35 #define _AMD64_LINUX_SIGNAL_H
36 
37 #define LINUX_SIGHUP                     1
38 #define LINUX_SIGINT                     2
39 #define LINUX_SIGQUIT                    3
40 #define LINUX_SIGILL                     4
41 #define LINUX_SIGTRAP                    5
42 #define LINUX_SIGABRT                    6
43 #define LINUX_SIGIOT                     6
44 #define LINUX_SIGBUS                     7
45 #define LINUX_SIGFPE                     8
46 #define LINUX_SIGKILL                    9
47 #define LINUX_SIGUSR1                   10
48 #define LINUX_SIGSEGV                   11
49 #define LINUX_SIGUSR2                   12
50 #define LINUX_SIGPIPE                   13
51 #define LINUX_SIGALRM                   14
52 #define LINUX_SIGTERM                   15
53 #define LINUX_SIGSTKFLT                 16
54 #define LINUX_SIGCHLD                   17
55 #define LINUX_SIGCONT                   18
56 #define LINUX_SIGSTOP                   19
57 #define LINUX_SIGTSTP                   20
58 #define LINUX_SIGTTIN                   21
59 #define LINUX_SIGTTOU                   22
60 #define LINUX_SIGURG                    23
61 #define LINUX_SIGXCPU                   24
62 #define LINUX_SIGXFSZ                   25
63 #define LINUX_SIGVTALRM                 26
64 #define LINUX_SIGPROF                   27
65 #define LINUX_SIGWINCH                  28
66 #define LINUX_SIGIO           29
67 #define LINUX_SIGPWR                    30
68 #define LINUX_SIGSYS                    31
69 #define LINUX_SIGRTMIN                  32
70 #define LINUX_SIGRTMAX                  LINUX__NSIG
71 
72 
73 #define LINUX_SS_ONSTACK      1
74 #define LINUX_SS_DISABLE      2
75 
76 #define LINUX_SA_NOCLDSTOP    0x00000001
77 #define LINUX_SA_NOCLDWAIT    0x00000002
78 #define LINUX_SA_SIGINFO      0x00000004
79 #define LINUX_SA_RESTORER     0x04000000
80 #define LINUX_SA_ONSTACK      0x08000000
81 #define LINUX_SA_RESTART      0x10000000
82 #define LINUX_SA_NOMASK                 0x40000000
83 #define LINUX_SA_ONESHOT      0x80000000
84 #define LINUX_SA_ALLBITS      0xdc000007
85 
86 #define LINUX_SIG_BLOCK                 0
87 #define LINUX_SIG_UNBLOCK     1
88 #define LINUX_SIG_SETMASK     2
89 
90 #define LINUX__NSIG           64
91 #define LINUX__NSIG_BPW                 64
92 #define LINUX__NSIG_WORDS     (LINUX__NSIG / LINUX__NSIG_BPW)
93 
94 #define   LINUX_MINSIGSTKSZ   2048
95 
96 typedef unsigned int linux_old_sigset_t;
97 
98 typedef struct {
99           unsigned long sig[LINUX__NSIG_WORDS];
100 } linux_sigset_t;
101 
102 typedef void (*linux_handler_t)(int);
103 
104 /* struct old_sigaction32 in Linux; uses a 32 bit pointer for handlers */
105 struct linux_compat_old_sigaction {
106           linux_handler_t linux_sa_handler;
107           linux_old_sigset_t linux_sa_mask;
108           unsigned int linux_sa_flags;
109           void (*linux_sa_restorer)(void);
110 };
111 
112 /* Dummy declaration to avoid errors, unused */
113 struct linux_old_sigaction {
114           linux_handler_t linux_sa_handler;
115           unsigned long linux_sa_flags;
116           void (*linux_sa_restorer)(void);
117           linux_sigset_t linux_sa_mask;
118 };
119 
120 struct linux_sigaction {
121           linux_handler_t linux_sa_handler;
122           unsigned long linux_sa_flags;
123           void (*linux_sa_restorer)(void);
124           linux_sigset_t linux_sa_mask;
125 };
126 
127 typedef struct linux_sigaltstack {
128           void *ss_sp;
129           int ss_flags;
130           size_t ss_size;
131 } linux_stack_t;
132 
133 #endif /* !_AMD64_LINUX_SIGNAL_H */
134