1 /* $NetBSD: linux_signal.h,v 1.14 2015/11/14 13:29:35 christos Exp $ */
2 
3 /*-
4  * Copyright (c) 1995, 1998, 2001 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, Eric Haszlakiewicz and Emmanuel Dreyfus.
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 _MIPS_LINUX_SIGNAL_H
33 #define _MIPS_LINUX_SIGNAL_H
34 
35 /*
36  * From Linux's include/asm-mips/ptrace.h
37  */
38 struct linux_pt_regs {
39 	unsigned long lpad0[6];
40 	unsigned long lregs[32];
41 	unsigned long llo;
42 	unsigned long lhi;
43 	unsigned long lcp0_epc;
44 	unsigned long lcp0_badvaddr;
45 	unsigned long lcp0_status;
46 	unsigned long lcp0_cause;
47 };
48 
49 /*
50  * Everything is from Linux's include/asm-mips/signal.h
51  */
52 #define LINUX_SIGHUP	 	1
53 #define LINUX_SIGINT		2
54 #define LINUX_SIGQUIT		3
55 #define LINUX_SIGILL		4
56 #define LINUX_SIGTRAP		5
57 #define LINUX_SIGABRT		6
58 #define LINUX_SIGIOT		6
59 #define LINUX_SIGEMT		7
60 #define LINUX_SIGFPE		8
61 #define LINUX_SIGKILL		9
62 #define LINUX_SIGBUS		10
63 #define LINUX_SIGSEGV		11
64 #define LINUX_SIGSYS		12
65 #define LINUX_SIGPIPE		13
66 #define LINUX_SIGALRM		14
67 #define LINUX_SIGTERM		15
68 #define LINUX_SIGUSR1		16
69 #define LINUX_SIGUSR2		17
70 #define LINUX_SIGCHLD		18
71 #define LINUX_SIGCLD		18
72 #define LINUX_SIGPWR		19
73 #define LINUX_SIGWINCH		20
74 #define LINUX_SIGURG		21
75 #define LINUX_SIGIO		22
76 #define LINUX_SIGPOLL		22
77 #define LINUX_SIGSTOP		23
78 #define LINUX_SIGTSTP		24
79 #define LINUX_SIGCONT		25
80 #define LINUX_SIGTTIN		26
81 #define LINUX_SIGTTOU		27
82 #define LINUX_SIGVTALRM		28
83 #define LINUX_SIGPROF		29
84 #define LINUX_SIGXCPU		30
85 #define LINUX_SIGXFSZ		31
86 
87 /* Min/max real-time linux signal */
88 #define LINUX_SIGRTMIN		32
89 #define LINUX_SIGRTMAX		(LINUX__NSIG - 1)
90 
91 #define LINUX__NSIG		128
92 #if defined(ELFSIZE) && (ELFSIZE == 64)
93 #define LINUX__NSIG_BPW		64
94 #else
95 #define LINUX__NSIG_BPW		32
96 #endif
97 #define LINUX__NSIG_WORDS (LINUX__NSIG / LINUX__NSIG_BPW)
98 
99 #define LINUX_SIG_BLOCK		1
100 #define LINUX_SIG_UNBLOCK	2
101 #define LINUX_SIG_SETMASK	3
102 
103 /* sa_flags */
104 #define LINUX_SA_NOCLDSTOP	0x00000001
105 #define LINUX_SA_SIGINFO	0x00000008
106 #define LINUX_SA_NOCLDWAIT	0x00010000
107 #define LINUX_SA_ONSTACK	0x08000000
108 #define LINUX_SA_RESTART	0x10000000
109 #define LINUX_SA_NODEFER	0x40000000
110 #define LINUX_SA_RESETHAND	0x80000000
111 #define LINUX_SA_NOMASK		LINUX_SA_NODEFER
112 #define LINUX_SA_ONESHOT	LINUX_SA_RESETHAND
113 #define LINUX_SA_ALLBITS	0xd8010009
114 /* XXX LINUX_SA_RESTORER has been deprecated; not used any version of glibc */
115 
116 #define	LINUX_MINSIGSTKSZ	2048
117 
118 typedef void (*linux___sighandler_t)(int);
119 
120 typedef unsigned long linux_old_sigset_t;
121 typedef struct {
122 	unsigned long sig[LINUX__NSIG_WORDS];
123 } linux_sigset_t;
124 
125 /* Used in rt_* calls. No old_sigaction is defined for MIPS */
126 struct linux_sigaction {
127 	unsigned int		linux_sa_flags;
128 	linux___sighandler_t	linux_sa_handler;
129 	linux_sigset_t		linux_sa_mask;
130 	void			(*linux_sa_restorer)(void);
131 	int			linux_sa_resv[1];
132 };
133 
134 struct linux_k_sigaction {
135 	struct linux_sigaction sa;
136 };
137 
138 struct linux_old_sigaction {
139 	unsigned int		linux_sa_flags;
140 	linux___sighandler_t	linux_sa_handler;
141 	linux_old_sigset_t	linux_sa_mask;
142 	void			(*linux_sa_restorer)(void);
143 	int			linux_sa_resv[1];
144 };
145 
146 #define	LINUX_SS_ONSTACK	1
147 #define	LINUX_SS_DISABLE	2
148 
149 #define	LINUX_MINSIGSTKSZ	2048
150 #define	LINUX_SIGSTKSZ		8192
151 
152 struct linux_sigaltstack {
153 	void *ss_sp;
154 	size_t ss_size;
155 	int ss_flags;
156 };
157 typedef struct linux_sigaltstack linux_stack_t; /* XXX really needed ? */
158 
159 #endif /* !_MIPS_LINUX_SIGNAL_H */
160