Annotation of src/sys/sys/signalvar.h, Revision 1.30.2.3
1.30.2.3! jdolecek 1: /* $NetBSD: signalvar.h,v 1.30.2.2 2002/06/23 17:52:00 jdolecek Exp $ */
1.11 cgd 2:
1.1 cgd 3: /*
1.8 cgd 4: * Copyright (c) 1991, 1993
5: * The Regents of the University of California. All rights reserved.
1.1 cgd 6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by the University of
18: * California, Berkeley and its contributors.
19: * 4. Neither the name of the University nor the names of its contributors
20: * may be used to endorse or promote products derived from this software
21: * without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33: * SUCH DAMAGE.
34: *
1.18 fvdl 35: * @(#)signalvar.h 8.6 (Berkeley) 2/19/95
1.1 cgd 36: */
37:
1.8 cgd 38: #ifndef _SYS_SIGNALVAR_H_ /* tmp for user.h */
39: #define _SYS_SIGNALVAR_H_
1.1 cgd 40:
41: /*
42: * Kernel signal definitions and data structures,
43: * not exported to user programs.
44: */
45:
46: /*
1.27 jdolecek 47: * Process signal actions, possibly shared between threads.
1.1 cgd 48: */
1.27 jdolecek 49: struct sigacts {
1.30.2.3! jdolecek 50: struct sigact_sigdesc {
! 51: struct sigaction sd_sigact;
! 52: void *sd_tramp;
! 53: int sd_vers;
! 54: } sa_sigdesc[NSIG]; /* disposition of signals */
1.27 jdolecek 55:
56: int sa_refcnt; /* reference count */
57: };
58:
59: /*
60: * Process signal state.
61: */
62: struct sigctx {
63: /* This needs to be zeroed on fork */
64: sigset_t ps_siglist; /* Signals arrived but not delivered. */
65: char ps_sigcheck; /* May have deliverable signals. */
66:
67: /* This should be copied on fork */
68: #define ps_startcopy ps_sigstk
1.19 mycroft 69: struct sigaltstack ps_sigstk; /* sp & on stack state variable */
1.1 cgd 70: sigset_t ps_oldmask; /* saved mask from before sigpause */
71: int ps_flags; /* signal flags, below */
72: int ps_sig; /* for core dump/debugger XXX */
1.12 cgd 73: long ps_code; /* for core dump/debugger XXX */
1.19 mycroft 74: void *ps_sigcode; /* address of signal trampoline */
1.27 jdolecek 75: sigset_t ps_sigmask; /* Current signal mask. */
76: sigset_t ps_sigignore; /* Signals being ignored. */
77: sigset_t ps_sigcatch; /* Signals being caught by user. */
1.1 cgd 78: };
79:
80: /* signal flags */
1.8 cgd 81: #define SAS_OLDMASK 0x01 /* need to restore mask before pause */
1.1 cgd 82:
83: /* additional signal action values, used only temporarily/internally */
1.16 christos 84: #define SIG_CATCH (void (*) __P((int)))2
85: #define SIG_HOLD (void (*) __P((int)))3
1.1 cgd 86:
87: /*
88: * get signal action for process and signal; currently only for current process
89: */
1.30.2.3! jdolecek 90: #define SIGACTION(p, sig) (p->p_sigacts->sa_sigdesc[(sig)].sd_sigact)
! 91: #define SIGACTION_PS(ps, sig) (ps->sa_sigdesc[(sig)].sd_sigact)
1.28 thorpej 92:
93: /*
94: * Mark that signals for a process need to be checked.
95: */
96: #define CHECKSIGS(p) \
97: do { \
98: (p)->p_sigctx.ps_sigcheck = 1; \
99: signotify(p); \
1.29 lukem 100: } while (/* CONSTCOND */ 0)
1.1 cgd 101:
102: /*
1.8 cgd 103: * Determine signal that should be delivered to process p, the current
104: * process, 0 if none. If there is a pending stop signal with default
105: * action, the process stops in issignal().
106: */
1.27 jdolecek 107: #define CURSIG(p) (p->p_sigctx.ps_sigcheck ? issignal(p) : 0)
1.1 cgd 108:
109: /*
110: * Clear a pending signal from a process.
111: */
1.27 jdolecek 112: #define CLRSIG(p, sig) sigdelset(&p->p_sigctx.ps_siglist, sig)
1.1 cgd 113:
114: /*
115: * Signal properties and actions.
116: * The array below categorizes the signals and their default actions
117: * according to the following properties:
118: */
119: #define SA_KILL 0x01 /* terminates process by default */
120: #define SA_CORE 0x02 /* ditto and coredumps */
121: #define SA_STOP 0x04 /* suspend process */
1.8 cgd 122: #define SA_TTYSTOP 0x08 /* ditto, from tty */
1.1 cgd 123: #define SA_IGNORE 0x10 /* ignore by default */
124: #define SA_CONT 0x20 /* continue if suspended */
125: #define SA_CANTMASK 0x40 /* non-maskable, catchable */
1.19 mycroft 126: #define SA_NORESET 0x80 /* not reset when caught */
1.1 cgd 127:
128: #ifdef SIGPROP
1.19 mycroft 129: const int sigprop[NSIG] = {
1.30.2.2 jdolecek 130: 0, /* 0 unused */
131: SA_KILL, /* 1 SIGHUP */
132: SA_KILL, /* 2 SIGINT */
133: SA_KILL|SA_CORE, /* 3 SIGQUIT */
134: SA_KILL|SA_CORE|SA_NORESET, /* 4 SIGILL */
135: SA_KILL|SA_CORE|SA_NORESET, /* 5 SIGTRAP */
136: SA_KILL|SA_CORE, /* 6 SIGABRT */
137: SA_KILL|SA_CORE, /* 7 SIGEMT */
138: SA_KILL|SA_CORE, /* 8 SIGFPE */
139: SA_KILL|SA_CANTMASK, /* 9 SIGKILL */
140: SA_KILL|SA_CORE, /* 10 SIGBUS */
141: SA_KILL|SA_CORE, /* 11 SIGSEGV */
142: SA_KILL|SA_CORE, /* 12 SIGSYS */
143: SA_KILL, /* 13 SIGPIPE */
144: SA_KILL, /* 14 SIGALRM */
145: SA_KILL, /* 15 SIGTERM */
146: SA_IGNORE, /* 16 SIGURG */
147: SA_STOP|SA_CANTMASK, /* 17 SIGSTOP */
148: SA_STOP|SA_TTYSTOP, /* 18 SIGTSTP */
149: SA_IGNORE|SA_CONT, /* 19 SIGCONT */
150: SA_IGNORE, /* 20 SIGCHLD */
151: SA_STOP|SA_TTYSTOP, /* 21 SIGTTIN */
152: SA_STOP|SA_TTYSTOP, /* 22 SIGTTOU */
153: SA_IGNORE, /* 23 SIGIO */
154: SA_KILL, /* 24 SIGXCPU */
155: SA_KILL, /* 25 SIGXFSZ */
156: SA_KILL, /* 26 SIGVTALRM */
157: SA_KILL, /* 27 SIGPROF */
158: SA_IGNORE, /* 28 SIGWINCH */
159: SA_IGNORE, /* 29 SIGINFO */
160: SA_KILL, /* 30 SIGUSR1 */
161: SA_KILL, /* 31 SIGUSR2 */
162: SA_IGNORE|SA_NORESET, /* 32 SIGPWR */
163: SA_KILL, /* 33 SIGRTMIN + 0 */
164: SA_KILL, /* 34 SIGRTMIN + 1 */
165: SA_KILL, /* 35 SIGRTMIN + 2 */
166: SA_KILL, /* 36 SIGRTMIN + 3 */
167: SA_KILL, /* 37 SIGRTMIN + 4 */
168: SA_KILL, /* 38 SIGRTMIN + 5 */
169: SA_KILL, /* 39 SIGRTMIN + 6 */
170: SA_KILL, /* 40 SIGRTMIN + 7 */
171: SA_KILL, /* 41 SIGRTMIN + 8 */
172: SA_KILL, /* 42 SIGRTMIN + 9 */
173: SA_KILL, /* 43 SIGRTMIN + 10 */
174: SA_KILL, /* 44 SIGRTMIN + 11 */
175: SA_KILL, /* 45 SIGRTMIN + 12 */
176: SA_KILL, /* 46 SIGRTMIN + 13 */
177: SA_KILL, /* 47 SIGRTMIN + 14 */
178: SA_KILL, /* 48 SIGRTMIN + 15 */
179: SA_KILL, /* 49 SIGRTMIN + 16 */
180: SA_KILL, /* 50 SIGRTMIN + 17 */
181: SA_KILL, /* 51 SIGRTMIN + 18 */
182: SA_KILL, /* 52 SIGRTMIN + 19 */
183: SA_KILL, /* 53 SIGRTMIN + 20 */
184: SA_KILL, /* 54 SIGRTMIN + 21 */
185: SA_KILL, /* 55 SIGRTMIN + 22 */
186: SA_KILL, /* 56 SIGRTMIN + 23 */
187: SA_KILL, /* 57 SIGRTMIN + 24 */
188: SA_KILL, /* 58 SIGRTMIN + 25 */
189: SA_KILL, /* 59 SIGRTMIN + 26 */
190: SA_KILL, /* 60 SIGRTMIN + 27 */
191: SA_KILL, /* 61 SIGRTMIN + 28 */
192: SA_KILL, /* 62 SIGRTMIN + 29 */
193: SA_KILL, /* 63 SIGRTMIN + 30 */
1.1 cgd 194: };
1.8 cgd 195: #endif /* SIGPROP */
1.1 cgd 196:
1.21 drochner 197: #ifdef _KERNEL
198:
199: extern sigset_t contsigmask, stopsigmask, sigcantmask;
1.30 mrg 200:
201: struct vnode;
1.30.2.1 thorpej 202: struct ucred;
1.1 cgd 203:
204: /*
205: * Machine-independent functions:
206: */
1.8 cgd 207: int coredump __P((struct proc *p));
1.30.2.1 thorpej 208: int coredump_netbsd __P((struct proc *p, struct vnode *vp,
209: struct ucred *cred));
1.1 cgd 210: void execsigs __P((struct proc *p));
211: void gsignal __P((int pgid, int sig));
1.8 cgd 212: int issignal __P((struct proc *p));
1.1 cgd 213: void pgsignal __P((struct pgrp *pgrp, int sig, int checkctty));
1.8 cgd 214: void postsig __P((int sig));
1.24 thorpej 215: void psignal1 __P((struct proc *p, int sig, int dolock));
216: #define psignal(p, sig) psignal1((p), (sig), 1)
217: #define sched_psignal(p, sig) psignal1((p), (sig), 0)
1.8 cgd 218: void siginit __P((struct proc *p));
1.12 cgd 219: void trapsignal __P((struct proc *p, int sig, u_long code));
1.15 christos 220: void sigexit __P((struct proc *, int));
1.30.2.3! jdolecek 221: void killproc __P((struct proc *, const char *));
1.15 christos 222: void setsigvec __P((struct proc *, int, struct sigaction *));
223: int killpg1 __P((struct proc *, int, int, int));
1.1 cgd 224:
1.19 mycroft 225: int sigaction1 __P((struct proc *p, int signum, \
1.30.2.3! jdolecek 226: const struct sigaction *nsa, struct sigaction *osa,
! 227: void *, int));
1.19 mycroft 228: int sigprocmask1 __P((struct proc *p, int how, \
229: const sigset_t *nss, sigset_t *oss));
230: void sigpending1 __P((struct proc *p, sigset_t *ss));
231: int sigsuspend1 __P((struct proc *p, const sigset_t *ss));
232: int sigaltstack1 __P((struct proc *p, \
233: const struct sigaltstack *nss, struct sigaltstack *oss));
1.25 jdolecek 234: int sigismasked __P((struct proc *, int));
1.22 thorpej 235:
236: void signal_init __P((void));
237:
1.27 jdolecek 238: void sigactsinit __P((struct proc *, struct proc *, int));
1.22 thorpej 239: void sigactsunshare __P((struct proc *));
240: void sigactsfree __P((struct proc *));
1.19 mycroft 241:
1.1 cgd 242: /*
243: * Machine-dependent functions:
244: */
1.30.2.3! jdolecek 245: void sendsig __P((int sig, sigset_t *returnmask, u_long code));
1.17 christos 246: struct core;
1.23 eeh 247: struct core32;
1.17 christos 248: int cpu_coredump __P((struct proc *, struct vnode *, struct ucred *,
249: struct core *));
1.23 eeh 250: int cpu_coredump32 __P((struct proc *, struct vnode *, struct ucred *,
251: struct core32 *));
1.20 thorpej 252:
253: /*
254: * Compatibility functions. See compat/common/kern_sig_13.c.
255: */
256: void native_sigset13_to_sigset __P((const sigset13_t *, sigset_t *));
257: void native_sigset_to_sigset13 __P((const sigset_t *, sigset13_t *));
258: void native_sigaction13_to_sigaction __P((const struct sigaction13 *,
259: struct sigaction *));
260: void native_sigaction_to_sigaction13 __P((const struct sigaction *,
261: struct sigaction13 *));
262: void native_sigaltstack13_to_sigaltstack __P((const struct sigaltstack13 *,
263: struct sigaltstack *));
264: void native_sigaltstack_to_sigaltstack13 __P((const struct sigaltstack *,
265: struct sigaltstack13 *));
1.13 jtc 266: #endif /* _KERNEL */
1.8 cgd 267: #endif /* !_SYS_SIGNALVAR_H_ */
CVSweb <webmaster@jp.NetBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to signalvar.h CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [cvs.NetBSD.org] / src / sys / sys