1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 1982 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ifndef __sys_signal_h
#define __sys_signal_h
#pragma ident "%Z%%M% %I% %E% SMI"
#include <vm/faultcode.h>
#define NSIG 32
/*
* If any signal defines (SIG*) are added, deleted, or changed, the same
* changes must be made in /usr/include/signal.h as well.
*/
#define SIGHUP 1 /* hangup */
#define SIGINT 2 /* interrupt */
#define SIGQUIT 3 /* quit */
#define SIGILL 4 /* illegal instruction (not reset when caught) */
#define ILL_STACK 0x00 /* bad stack */
#define ILL_ILLINSTR_FAULT 0x02 /* illegal instruction fault */
#define ILL_PRIVINSTR_FAULT 0x03 /* privileged instruction fault */
/* codes from 0x80 to 0xff are software traps */
#define ILL_TRAP_FAULT(n) ((n)+0x80) /* trap n fault */
#define SIGTRAP 5 /* trace trap (not reset when caught) */
#define SIGIOT 6 /* IOT instruction */
#define SIGABRT 6 /* used by abort, replace SIGIOT in the future */
#define SIGEMT 7 /* EMT instruction */
#define EMT_TAG 0x0a /* tag overflow */
#define SIGFPE 8 /* floating point exception */
#define FPE_INTOVF_TRAP 0x1 /* integer overflow */
#define FPE_STARTSIG_TRAP 0x2 /* process using fp */
#define FPE_INTDIV_TRAP 0x14 /* integer divide by zero */
#define FPE_FLTINEX_TRAP 0xc4 /* [floating inexact result] */
#define FPE_FLTDIV_TRAP 0xc8 /* [floating divide by zero] */
#define FPE_FLTUND_TRAP 0xcc /* [floating underflow] */
#define FPE_FLTOPERR_TRAP 0xd0 /* [floating operand error] */
#define FPE_FLTOVF_TRAP 0xd4 /* [floating overflow] */
#define SIGKILL 9 /* kill (cannot be caught or ignored) */
/*
* The codes for SIGBUS and SIGSEGV are described in <vm/faultcode.h>
*/
#define SIGBUS 10 /* bus error */
#define BUS_HWERR FC_HWERR /* misc hardware error (e.g. timeout) */
#define BUS_ALIGN FC_ALIGN /* hardware alignment error */
#define BUS_OBJERR FC_OBJERR /* object returned errno value */
/*
* The BUS_CODE(code) will be one of the above. In the BUS_OBJERR case,
* doing a BUS_ERRNO(code) gives an errno value reported by the underlying
* file object mapped at the fault address. Note that this appears to be
* duplicated with the segmentation fault case below -- unfortunate, since
* the specification has always claimed that such errors produce SIGBUS.
* The segmentation cases are left defined as a transition aid.
*/
#define BUS_CODE(C) FC_CODE(C)
#define BUS_ERRNO(C) FC_ERRNO(C)
#define SIGSEGV 11 /* segmentation violation */
#define SEGV_NOMAP FC_NOMAP /* no mapping at the fault address */
#define SEGV_PROT FC_PROT /* access exceeded protections */
#define SEGV_OBJERR FC_OBJERR /* object returned errno value */
/*
* The SEGV_CODE(code) will be SEGV_NOMAP, SEGV_PROT, or SEGV_OBJERR.
* In the SEGV_OBJERR case, doing a SEGV_ERRNO(code) gives an errno value
* reported by the underlying file object mapped at the fault address.
*/
#define SEGV_CODE(C) FC_CODE(C)
#define SEGV_ERRNO(C) FC_ERRNO(C)
#define SIGSYS 12 /* bad argument to system call */
#define SIGPIPE 13 /* write on a pipe with no one to read it */
#define SIGALRM 14 /* alarm clock */
#define SIGTERM 15 /* software termination signal from kill */
#define SIGURG 16 /* urgent condition on IO channel */
#define SIGSTOP 17 /* sendable stop signal not from tty */
#define SIGTSTP 18 /* stop signal from tty */
#define SIGCONT 19 /* continue a stopped process */
#define SIGCHLD 20 /* to parent on child stop or exit */
#define SIGCLD 20 /* System V name for SIGCHLD */
#define SIGTTIN 21 /* to readers pgrp upon background tty read */
#define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */
#define SIGIO 23 /* input/output possible signal */
#define SIGPOLL SIGIO /* System V name for SIGIO */
#define SIGXCPU 24 /* exceeded CPU time limit */
#define SIGXFSZ 25 /* exceeded file size limit */
#define SIGVTALRM 26 /* virtual time alarm */
#define SIGPROF 27 /* profiling time alarm */
#define SIGWINCH 28 /* window changed */
#define SIGLOST 29 /* resource lost (eg, record-lock lost) */
#define SIGUSR1 30 /* user defined signal 1 */
#define SIGUSR2 31 /* user defined signal 2 */
/*
* If addr cannot be computed it is set to SIG_NOADDR.
*/
#define SIG_NOADDR ((char *)~0)
#if !defined(KERNEL) && !defined(LOCORE)
void (*signal())();
/*
* Define BSD 4.1 reliable signals for SVID compatibility.
* These functions may go away in a future release.
*/
void (*sigset())();
int sighold();
int sigrelse();
int sigignore();
#endif /* !KERNEL && !LOCORE */
#ifndef LOCORE
/*
* Signal vector "template" used in sigvec call.
*/
struct sigvec {
void (*sv_handler)(); /* signal handler */
int sv_mask; /* signal mask to apply */
int sv_flags; /* see signal options below */
};
#define SV_ONSTACK 0x0001 /* take signal on signal stack */
#define SV_INTERRUPT 0x0002 /* do not restart system on signal return */
#define SV_RESETHAND 0x0004 /* reset signal handler to SIG_DFL when signal taken */
/*
* If any SA_NOCLDSTOP or SV_NOCLDSTOP is change, the same
* changes must be made in /usr/include/signal.h as well.
*/
#define SV_NOCLDSTOP 0x0008 /* don't send a SIGCHLD on child stop */
#define SA_ONSTACK SV_ONSTACK
#define SA_INTERRUPT SV_INTERRUPT
#define SA_RESETHAND SV_RESETHAND
#define SA_NOCLDSTOP SV_NOCLDSTOP
#define sv_onstack sv_flags /* isn't compatibility wonderful! */
/*
* Structure used in sigstack call.
*/
struct sigstack {
char *ss_sp; /* signal stack pointer */
int ss_onstack; /* current status */
};
/*
* Information pushed on stack when a signal is delivered.
* This is used by the kernel to restore state following
* execution of the signal handler. It is also made available
* to the handler to allow it to properly restore state if
* a non-standard exit is performed.
*/
struct sigcontext {
int sc_onstack; /* sigstack state to restore */
int sc_mask; /* signal mask to restore */
#define SPARC_MAXREGWINDOW 31 /* max usable windows in sparc */
int sc_sp; /* sp to restore */
int sc_pc; /* pc to retore */
int sc_npc; /* next pc to restore */
int sc_psr; /* psr to restore */
int sc_g1; /* register that must be restored */
int sc_o0;
int sc_wbcnt; /* number of outstanding windows */
char *sc_spbuf[SPARC_MAXREGWINDOW]; /* sp's for each wbuf */
int sc_wbuf[SPARC_MAXREGWINDOW][16]; /* window save buf */
};
#endif /* !LOCORE */
#define BADSIG (void (*)())-1
/*
* If SIG_ERR, SIG_DFL, SIG_IGN, or SIG_HOLD are changed, the same changes
* must be made in /usr/include/signal.h as well.
*/
#define SIG_ERR (void (*)())-1
#define SIG_DFL (void (*)())0
#define SIG_IGN (void (*)())1
#define SIG_HOLD (void (*)())3
/*
* Macro for converting signal number to a mask suitable for sigblock().
*/
#define sigmask(m) (1 << ((m)-1))
/*
* signals that can't caught, blocked, or ignored
*/
/*
* If SIG_BLOCK, SIG_UNBLOCK, or SIG_SETMASK are changed, the same changes
* must be made in /usr/include/signal.h as well.
*/
#define SIG_BLOCK 0x0001
#define SIG_UNBLOCK 0x0002
#define SIG_SETMASK 0x0004
#if !defined(LOCORE) && !defined(KERNEL)
/*
* If changes are made to sigset_t or struct sigaction, the same changes
* must be made in /usr/include/signal.h as well.
*/
#include <sys/stdtypes.h>
struct sigaction {
void (*sa_handler)();
sigset_t sa_mask;
int sa_flags;
};
/*
* If changes are made to the function prototypes, the same changes
* must be made in /usr/include/signal.h as well.
*/
void (*signal())();
int kill(/* pid_t p, int sig */);
int sigaction(/* int signo,
struct sigaction *act, struct sigaction *oldact */);
int sigaddset(/* sigset_t *mask, int signo */);
int sigdelset(/* sigset_t *mask, int signo */);
int sigemptyset(/* sigset_t *mask */);
int sigfillset(/* sigset_t *mask */);
int sigismember(/* sigset_t *mask, int signo */);
int sigpending(/* sigset_t *set */);
int sigprocmask(/* int how, sigset_t *set, *oldset */);
int sigsuspend(/* sigset_t *mask */);
#endif /* !LOCORE && !KERNEL */
#endif /* !__sys_signal_h */
|
