199767f8919635c4928607450d9e0abb932109ceToomas Soome * Copyright (c) 1982, 1986, 1989, 1991, 1993
199767f8919635c4928607450d9e0abb932109ceToomas Soome * The Regents of the University of California. All rights reserved.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * (c) UNIX System Laboratories, Inc.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * All or some portions of this file are derived from material licensed
199767f8919635c4928607450d9e0abb932109ceToomas Soome * to the University of California by American Telephone and Telegraph
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Co. or Unix System Laboratories, Inc. and are reproduced herein with
199767f8919635c4928607450d9e0abb932109ceToomas Soome * the permission of UNIX System Laboratories, Inc.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Redistribution and use in source and binary forms, with or without
199767f8919635c4928607450d9e0abb932109ceToomas Soome * modification, are permitted provided that the following conditions
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 1. Redistributions of source code must retain the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
199767f8919635c4928607450d9e0abb932109ceToomas Soome * notice, this list of conditions and the following disclaimer in the
199767f8919635c4928607450d9e0abb932109ceToomas Soome * documentation and/or other materials provided with the distribution.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 4. Neither the name of the University nor the names of its contributors
199767f8919635c4928607450d9e0abb932109ceToomas Soome * may be used to endorse or promote products derived from this software
199767f8919635c4928607450d9e0abb932109ceToomas Soome * without specific prior written permission.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
199767f8919635c4928607450d9e0abb932109ceToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
199767f8919635c4928607450d9e0abb932109ceToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
199767f8919635c4928607450d9e0abb932109ceToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
199767f8919635c4928607450d9e0abb932109ceToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
199767f8919635c4928607450d9e0abb932109ceToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
199767f8919635c4928607450d9e0abb932109ceToomas Soome * SUCH DAMAGE.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * @(#)signal.h 8.4 (Berkeley) 5/4/95
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <machine/_limits.h> /* __MINSIGSTKSZ */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#include <machine/signal.h> /* sig_atomic_t; trap codes; sigcontext */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * System defined signals.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGILL 4 /* illegal instr. (not reset when caught) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGTRAP 5 /* trace trap (not reset when caught) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGKILL 9 /* kill (cannot be caught or ignored) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGSYS 12 /* non-existent system call invoked */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGPIPE 13 /* write on a pipe with no one to read it */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGTERM 15 /* software termination signal from kill */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGURG 16 /* urgent condition on IO channel */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGSTOP 17 /* sendable stop signal not from tty */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGCONT 19 /* continue a stopped process */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGCHLD 20 /* to parent on child stop or exit */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGTTIN 21 /* to readers pgrp upon background tty read */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGTTOU 22 /* like TTIN if (tp->t_local<OSTOP) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGIO 23 /* input/output possible signal */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGXCPU 24 /* exceeded CPU time limit */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGXFSZ 25 /* exceeded file size limit */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGTHR 32 /* reserved by thread library. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGLIBRT 33 /* reserved by real-time library. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* #define SIG_CATCH ((__sighandler_t *)2) See signalvar.h */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Type of a signal handling function.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Language spec sez signal handlers take exactly one arg, even though we
199767f8919635c4928607450d9e0abb932109ceToomas Soome * actually supply three. Ugh!
199767f8919635c4928607450d9e0abb932109ceToomas Soome * We don't try to hide the difference by leaving out the args because
199767f8919635c4928607450d9e0abb932109ceToomas Soome * that would cause warnings about conformant programs. Nonconformant
199767f8919635c4928607450d9e0abb932109ceToomas Soome * programs can avoid the warnings by casting to (__sighandler_t *) or
199767f8919635c4928607450d9e0abb932109ceToomas Soome * sig_t before calling signal() or assigning to sa_handler or sv_handler.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * The kernel should reverse the cast before calling the function. It
199767f8919635c4928607450d9e0abb932109ceToomas Soome * has no way to do this, but on most machines 1-arg and 3-arg functions
199767f8919635c4928607450d9e0abb932109ceToomas Soome * have the same calling protocol so there is no problem in practice.
199767f8919635c4928607450d9e0abb932109ceToomas Soome * A bit in sa_flags could be used to specify the number of args.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#if __POSIX_VISIBLE >= 199309 || __XSI_VISIBLE >= 500
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* Members as suggested by Annex C of POSIX 1003.1b. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* 6.0 compatibility */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define sigev_notify_kevent_flags _sigev_un._kevent_flags
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define sigev_notify_thread_id _sigev_un._threadid
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define sigev_notify_function _sigev_un._sigev_thread._function
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define sigev_notify_attributes _sigev_un._sigev_thread._attribute
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGEV_NONE 0 /* No async notification. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGEV_SIGNAL 1 /* Generate a queued signal. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGEV_THREAD 2 /* Call back from another pthread. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGEV_THREAD_ID 4 /* Send signal to a kernel thread. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif /* __POSIX_VISIBLE >= 199309 */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Cause of signal, one of the SI_ macros or signal-specific
199767f8919635c4928607450d9e0abb932109ceToomas Soome * values, i.e. one of the FPE_... values for SIGFPE. This
199767f8919635c4928607450d9e0abb932109ceToomas Soome * value is equivalent to the second argument to an old-style
199767f8919635c4928607450d9e0abb932109ceToomas Soome * FreeBSD signal handler.
199767f8919635c4928607450d9e0abb932109ceToomas Soome/** si_code **/
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* codes for SIGILL */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define ILL_ILLADR 3 /* Illegal addressing mode. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define ILL_BADSTK 8 /* Internal stack error. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* codes for SIGBUS */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define BUS_ADRALN 1 /* Invalid address alignment. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define BUS_ADRERR 2 /* Nonexistent physical address. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define BUS_OBJERR 3 /* Object-specific hardware error. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* codes for SIGSEGV */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SEGV_MAPERR 1 /* Address not mapped to object. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SEGV_ACCERR 2 /* Invalid permissions for mapped */
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* object. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* codes for SIGFPE */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define FPE_INTDIV 2 /* Integer divide by zero. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define FPE_FLTDIV 3 /* Floating point divide by zero. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define FPE_FLTOVF 4 /* Floating point overflow. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define FPE_FLTUND 5 /* Floating point underflow. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define FPE_FLTRES 6 /* Floating point inexact result. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define FPE_FLTINV 7 /* Invalid floating point operation. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define FPE_FLTSUB 8 /* Subscript out of range. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* codes for SIGTRAP */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define TRAP_DTRACE 3 /* DTrace induced trap. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* codes for SIGCHLD */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define CLD_KILLED 2 /* Child has terminated abnormally but */
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* did not create a core file */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define CLD_DUMPED 3 /* Child has terminated abnormally and */
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* created a core file */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define CLD_TRAPPED 4 /* Traced child has trapped */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define CLD_CONTINUED 6 /* Stopped child has continued */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* codes for SIGPOLL */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define POLL_OUT 2 /* Output buffers available */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define POLL_MSG 3 /* Input message available */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define POLL_PRI 5 /* High priority input available */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Signal vector "template" used in sigaction call.
199767f8919635c4928607450d9e0abb932109ceToomas Soome void (*__sa_sigaction)(int, struct __siginfo *, void *);
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* If SA_SIGINFO is set, sa_sigaction must be used instead of sa_handler. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define sa_sigaction __sigaction_u.__sa_sigaction
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif /* __POSIX_VISIBLE || __XSI_VISIBLE */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SA_ONSTACK 0x0001 /* take signal on signal stack */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SA_RESTART 0x0002 /* restart system call on signal return */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SA_RESETHAND 0x0004 /* reset to SIG_DFL when taking signal */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SA_NODEFER 0x0010 /* don't mask the signal we're delivering */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SA_NOCLDWAIT 0x0020 /* don't keep zombies around */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SA_SIGINFO 0x0040 /* signal handler with SA_SIGINFO args */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define NSIG 32 /* number of old signals (counting 0) */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SI_NOINFO 0 /* No signal info besides si_signo. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SI_USER 0x10001 /* Signal sent by kill(). */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SI_QUEUE 0x10002 /* Signal sent by the sigqueue(). */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SI_TIMER 0x10003 /* Signal generated by expiration of */
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* a timer set by timer_settime(). */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SI_ASYNCIO 0x10004 /* Signal generated by completion of */
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* an asynchronous I/O request.*/
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SI_MESGQ 0x10005 /* Signal generated by arrival of a */
199767f8919635c4928607450d9e0abb932109ceToomas Soome /* message on an empty message queue. */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SI_LWP 0x10007 /* Signal sent by thr_kill */
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef __sighandler_t *sig_t; /* type of pointer to a signal function */
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef void __siginfohandler_t(int, struct __siginfo *, void *);
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Structure used in sigaltstack call.
199767f8919635c4928607450d9e0abb932109ceToomas Soometypedef struct {
199767f8919635c4928607450d9e0abb932109ceToomas Soome int ss_flags; /* SS_DISABLE and/or SS_ONSTACK */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SS_ONSTACK 0x0001 /* take signal on alternate stack */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SS_DISABLE 0x0004 /* disable taking signals on alternate stack */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define MINSIGSTKSZ __MINSIGSTKSZ /* minimum stack size */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIGSTKSZ (MINSIGSTKSZ + 32768) /* recommended stack size */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * 4.3 compatibility:
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Signal vector "template" used in sigvec call.
199767f8919635c4928607450d9e0abb932109ceToomas Soome __sighandler_t *sv_handler; /* signal handler */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SV_INTERRUPT SA_RESTART /* same bit, opposite sense */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define sv_onstack sv_flags /* isn't compatibility wonderful! */
199767f8919635c4928607450d9e0abb932109ceToomas Soome/* Keep this in one place only */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Structure used in sigstack call.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#if __BSD_VISIBLE || __POSIX_VISIBLE > 0 && __POSIX_VISIBLE <= 200112
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Macro for converting signal number to a mask suitable for
199767f8919635c4928607450d9e0abb932109ceToomas Soome * sigblock().
199767f8919635c4928607450d9e0abb932109ceToomas Soome * Flags for sigprocmask:
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIG_BLOCK 1 /* block specified signal set */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIG_UNBLOCK 2 /* unblock specified signal set */
199767f8919635c4928607450d9e0abb932109ceToomas Soome#define SIG_SETMASK 3 /* set specified signal set */
199767f8919635c4928607450d9e0abb932109ceToomas Soome * For historical reasons; programs expect signal's return value to be
199767f8919635c4928607450d9e0abb932109ceToomas Soome * defined by <sys/signal.h>.
199767f8919635c4928607450d9e0abb932109ceToomas Soome#endif /* !_SYS_SIGNAL_H_ */