Remove upc_{control,register} syscalls and everything that has to do with it.
[dragonfly.git] / sys / sys / signalvar.h
CommitLineData
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1/*
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)signalvar.h 8.6 (Berkeley) 2/19/95
34 * $FreeBSD: src/sys/sys/signalvar.h,v 1.34.2.1 2000/05/16 06:58:05 dillon Exp $
35 */
36
37#ifndef _SYS_SIGNALVAR_H_ /* tmp for user.h */
38#define _SYS_SIGNALVAR_H_
39
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40/*
41 * Don't bring in the entire bleeding include set if we aren't the kernel.
42 * Userland is not allowed to bring in sys/proc.h except under special
43 * circumstances (e.g. sys/user.h)
44 */
984263bc 45#include <sys/signal.h>
05220613 46#ifdef _KERNEL
984263bc 47#include <sys/proc.h>
8a8d5d85 48#include <machine/lock.h>
05220613 49#endif
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50
51/*
52 * Kernel signal definitions and data structures,
53 * not exported to user programs.
54 */
55
56/*
57 * Process signal actions and state, needed only within the process
58 * (not necessarily resident).
59 */
60struct sigacts {
b1b4e5a6 61 sig_t ps_sigact[_SIG_MAXSIG]; /* disposition of signals */
984263bc 62 sigset_t ps_catchmask[_SIG_MAXSIG]; /* signals to be blocked */
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63 sigset_t ps_sigignore; /* Signals being ignored. */
64 sigset_t ps_sigcatch; /* Signals being caught by user. */
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65 sigset_t ps_sigonstack; /* signals to take on sigstack */
66 sigset_t ps_sigintr; /* signals that interrupt syscalls */
67 sigset_t ps_sigreset; /* signals that reset when caught */
68 sigset_t ps_signodefer; /* signals not masked while handled */
69 sigset_t ps_siginfo; /* signals that want SA_SIGINFO args */
984263bc 70 sigset_t ps_usertramp; /* SunOS compat; libc sigtramp XXX */
0d6e2d63 71 unsigned int ps_refcnt;
b1b4e5a6 72 int ps_flag;
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73};
74
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75/* additional signal action values, used only temporarily/internally */
76#define SIG_CATCH ((__sighandler_t *)2)
77#define SIG_HOLD ((__sighandler_t *)3)
78
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79#ifdef _KERNEL
80
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81/*
82 * get signal action for process and signal; currently only for current process
83 */
84#define SIGACTION(p, sig) (p->p_sigacts->ps_sigact[_SIG_IDX(sig)])
85
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86#endif
87
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88/*
89 * sigset_t manipulation macros
90 */
91#define SIGADDSET(set, signo) \
92 (set).__bits[_SIG_WORD(signo)] |= _SIG_BIT(signo)
93
94#define SIGDELSET(set, signo) \
95 (set).__bits[_SIG_WORD(signo)] &= ~_SIG_BIT(signo)
96
97#define SIGEMPTYSET(set) \
98 do { \
99 int __i; \
100 for (__i = 0; __i < _SIG_WORDS; __i++) \
101 (set).__bits[__i] = 0; \
102 } while (0)
103
104#define SIGFILLSET(set) \
105 do { \
106 int __i; \
107 for (__i = 0; __i < _SIG_WORDS; __i++) \
108 (set).__bits[__i] = ~(unsigned int)0; \
109 } while (0)
110
111#define SIGISMEMBER(set, signo) \
112 ((set).__bits[_SIG_WORD(signo)] & _SIG_BIT(signo))
113
114#define SIGISEMPTY(set) __sigisempty(&(set))
115#define SIGNOTEMPTY(set) (!__sigisempty(&(set)))
116
117#define SIGSETEQ(set1, set2) __sigseteq(&(set1), &(set2))
118#define SIGSETNEQ(set1, set2) (!__sigseteq(&(set1), &(set2)))
119
120#define SIGSETOR(set1, set2) \
121 do { \
122 int __i; \
123 for (__i = 0; __i < _SIG_WORDS; __i++) \
124 (set1).__bits[__i] |= (set2).__bits[__i]; \
125 } while (0)
126
127#define SIGSETAND(set1, set2) \
128 do { \
129 int __i; \
130 for (__i = 0; __i < _SIG_WORDS; __i++) \
131 (set1).__bits[__i] &= (set2).__bits[__i]; \
132 } while (0)
133
134#define SIGSETNAND(set1, set2) \
135 do { \
136 int __i; \
137 for (__i = 0; __i < _SIG_WORDS; __i++) \
138 (set1).__bits[__i] &= ~(set2).__bits[__i]; \
139 } while (0)
140
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141#define SIG_CANTMASK(set) \
142 SIGDELSET(set, SIGKILL), SIGDELSET(set, SIGSTOP)
143
144#define SIG_STOPSIGMASK(set) \
145 SIGDELSET(set, SIGSTOP), SIGDELSET(set, SIGTSTP), \
146 SIGDELSET(set, SIGTTIN), SIGDELSET(set, SIGTTOU)
147
148#define SIG_CONTSIGMASK(set) \
149 SIGDELSET(set, SIGCONT)
150
151#define sigcantmask (sigmask(SIGKILL) | sigmask(SIGSTOP))
152
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153static __inline int
154__sigisempty(sigset_t *set)
155{
156 int i;
157
158 for (i = 0; i < _SIG_WORDS; i++) {
159 if (set->__bits[i])
160 return (0);
161 }
162 return (1);
163}
164
165static __inline int
166__sigseteq(sigset_t *set1, sigset_t *set2)
167{
168 int i;
169
170 for (i = 0; i < _SIG_WORDS; i++) {
171 if (set1->__bits[i] != set2->__bits[i])
172 return (0);
173 }
174 return (1);
175}
176
177#ifdef _KERNEL
178
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179typedef void (*proc_func_t)(struct proc *);
180
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181struct pgrp;
182struct proc;
183struct sigio;
184
185extern int sugid_coredump; /* Sysctl variable kern.sugid_coredump */
186
187/*
188 * Machine-independent functions:
189 */
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190void execsigs (struct proc *p);
191void gsignal (int pgid, int sig);
e473f776 192int issignal (struct lwp *lp, int maytrace);
08f2f1bb 193int iscaught (struct lwp *p);
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194void killproc (struct proc *p, char *why);
195void pgsigio (struct sigio *, int signum, int checkctty);
196void pgsignal (struct pgrp *pgrp, int sig, int checkctty);
197void postsig (int sig);
84204577 198void ksignal (struct proc *p, int sig);
7278a846 199void lwpsignal (struct proc *p, struct lwp *lp, int sig);
b153f746 200void siginit (struct proc *p);
08f2f1bb 201void trapsignal (struct lwp *p, int sig, u_long code);
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202
203/*
204 * Machine-dependent functions:
205 */
b153f746 206void sendsig (sig_t action, int sig, sigset_t *retmask, u_long code);
b276424c 207void sigexit (struct lwp *lp, int sig);
7d20a8ff 208int checkpoint_signal_handler(struct lwp *p);
984263bc 209
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210#endif /* _KERNEL */
211
212#endif /* !_SYS_SIGNALVAR_H_ */