xref: /netbsd-src/sys/arch/sparc/include/signal.h (revision 9461be8df00ef60d8ac8f340f17f70c24ac4de6e)
1 /*	$NetBSD: signal.h,v 1.26 2021/10/28 23:41:06 thorpej Exp $ */
2 
3 /*
4  * Copyright (c) 1992, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This software was developed by the Computer Systems Engineering group
8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
9  * contributed to Berkeley.
10  *
11  * All advertising materials mentioning features or use of this software
12  * must display the following acknowledgement:
13  *	This product includes software developed by the University of
14  *	California, Lawrence Berkeley Laboratory.
15  *
16  * Redistribution and use in source and binary forms, with or without
17  * modification, are permitted provided that the following conditions
18  * are met:
19  * 1. Redistributions of source code must retain the above copyright
20  *    notice, this list of conditions and the following disclaimer.
21  * 2. Redistributions in binary form must reproduce the above copyright
22  *    notice, this list of conditions and the following disclaimer in the
23  *    documentation and/or other materials provided with the distribution.
24  * 3. Neither the name of the University nor the names of its contributors
25  *    may be used to endorse or promote products derived from this software
26  *    without specific prior written permission.
27  *
28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38  * SUCH DAMAGE.
39  *
40  *	@(#)signal.h	8.1 (Berkeley) 6/11/93
41  */
42 
43 #ifndef	_SPARC_SIGNAL_H_
44 #define _SPARC_SIGNAL_H_
45 
46 #include <sys/featuretest.h>
47 
48 #define	__HAVE_STRUCT_SIGCONTEXT
49 
50 #ifndef _LOCORE
51 typedef int sig_atomic_t;
52 #endif
53 
54 #if defined(_NETBSD_SOURCE)
55 #ifndef _LOCORE
56 #include <sys/sigtypes.h>
57 /*
58  * Information pushed on stack when a signal is delivered.
59  * This is used by the kernel to restore state following
60  * execution of the signal handler.  It is also made available
61  * to the handler to allow it to restore state properly if
62  * a non-standard exit is performed.
63  *
64  * All machines must have an sc_onstack and sc_mask.
65  */
66 #if defined(_KERNEL)
67 struct sigcontext13 {
68 	int	sc_onstack;		/* sigstack state to restore */
69 	int	sc_mask;		/* signal mask to restore (old style) */
70 	/* begin machine dependent portion */
71 	long	sc_sp;			/* %sp to restore */
72 	long	sc_pc;			/* pc to restore */
73 	long	sc_npc;			/* npc to restore */
74 #ifdef __arch64__
75 	long	sc_tstate;		/* tstate to restore */
76 #else
77 	long	sc_psr;			/* psr to restore */
78 #endif
79 	long	sc_g1;			/* %g1 to restore */
80 	long	sc_o0;			/* %o0 to restore */
81 };
82 #endif /* _KERNEL */
83 
84 struct sigcontext {
85 	int		sc_onstack;	/* sigstack state to restore */
86 	int		__sc_mask13;	/* signal mask to restore (old style) */
87 	/* begin machine dependent portion */
88 	long		sc_sp;		/* %sp to restore */
89 	long		sc_pc;		/* pc to restore */
90 	long		sc_npc;		/* npc to restore */
91 #ifdef __arch64__
92 	long		sc_tstate;	/* tstate to restore */
93 #else
94 	long		sc_psr;		/* psr to restore */
95 #endif
96 	long		sc_g1;		/* %g1 to restore */
97 	long		sc_o0;		/* %o0 to restore */
98 	sigset_t	sc_mask;	/* signal mask to restore (new style) */
99 };
100 
101 #else /* _LOCORE */
102 /* XXXXX These values don't work for _LP64 */
103 #define	SC_SP_OFFSET	8
104 #define	SC_PC_OFFSET	12
105 #define	SC_NPC_OFFSET	16
106 #define	SC_PSR_OFFSET	20
107 #define	SC_G1_OFFSET	24
108 #define	SC_O0_OFFSET	28
109 #endif /* _LOCORE */
110 
111 /*
112  * `Code' arguments to signal handlers.  The names, and the funny numbering.
113  * are defined so as to match up with what SunOS uses; I have no idea why
114  * they did the numbers that way, except maybe to match up with the 68881.
115  */
116 #define	FPE_INTOVF_TRAP		0x01	/* integer overflow */
117 #define	FPE_INTDIV_TRAP		0x14	/* integer divide by zero */
118 #define	FPE_FLTINEX_TRAP	0xc4	/* inexact */
119 #define	FPE_FLTDIV_TRAP		0xc8	/* divide by zero */
120 #define	FPE_FLTUND_TRAP		0xcc	/* underflow */
121 #define	FPE_FLTOPERR_TRAP	0xd0	/* operand error */
122 #define	FPE_FLTOVF_TRAP		0xd4	/* overflow */
123 
124 #endif	/* _NETBSD_SOURCE */
125 #endif	/* !_SPARC_SIGNAL_H_ */
126