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      1 /* 	$NetBSD: linux_signal.h,v 1.10 2015/11/14 13:29:35 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Eric Haszlakiewicz.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * Whoever decided how linux would handle
     34  * binary compatibility should be shot.
     35  */
     36 
     37 #ifndef _ALPHA_LINUX_SIGNAL_H
     38 #define _ALPHA_LINUX_SIGNAL_H
     39 
     40 #define LINUX_SIGHUP	 1
     41 #define LINUX_SIGINT	 2
     42 #define LINUX_SIGQUIT	 3
     43 #define LINUX_SIGILL	 4
     44 #define LINUX_SIGTRAP	 5
     45 #define LINUX_SIGABRT	 6
     46 #define LINUX_SIGEMT	 7
     47 #define LINUX_SIGFPE	 8
     48 #define LINUX_SIGKILL	 9
     49 #define LINUX_SIGBUS	10
     50 #define LINUX_SIGSEGV	11
     51 #define LINUX_SIGSYS	12
     52 #define LINUX_SIGPIPE	13
     53 #define LINUX_SIGALRM	14
     54 #define LINUX_SIGTERM	15
     55 #define LINUX_SIGURG	16
     56 #define LINUX_SIGSTOP	17
     57 #define LINUX_SIGTSTP	18
     58 #define LINUX_SIGCONT	19
     59 #define LINUX_SIGCHLD	20
     60 #define LINUX_SIGTTIN	21
     61 #define LINUX_SIGTTOU	22
     62 #define LINUX_SIGIO	23
     63 #define LINUX_SIGXCPU	24
     64 #define LINUX_SIGXFSZ	25
     65 #define LINUX_SIGVTALRM	26
     66 #define LINUX_SIGPROF	27
     67 #define LINUX_SIGWINCH	28
     68 #define LINUX_SIGINFO	29
     69 #define LINUX_SIGUSR1	30
     70 #define LINUX_SIGUSR2	31
     71 
     72 #define LINUX_SIGIOT	LINUX_SIGABRT
     73 #define LINUX_SIGPWR	LINUX_SIGINFO
     74 #define LINUX_SIGPOLL	LINUX_SIGIO
     75 
     76 /* Min/max real-time linux signal */
     77 #define LINUX_SIGRTMIN		32
     78 #define LINUX_SIGRTMAX		(LINUX__NSIG - 1)
     79 
     80 #define LINUX__NSIG		64
     81 #define LINUX__NSIG_BPW		64
     82 #define LINUX__NSIG_WORDS	(LINUX__NSIG / LINUX__NSIG_BPW)
     83 #define LINUX_NSIG		32
     84 
     85 #define	LINUX_MINSIGSTKSZ	4096
     86 
     87 /* sa_flags */
     88 #define LINUX_SA_ONSTACK	0x00000001
     89 #define LINUX_SA_RESTART	0x00000002
     90 #define LINUX_SA_NOCLDSTOP	0x00000004
     91 #define LINUX_SA_NODEFER	0x00000008
     92 #define LINUX_SA_RESETHAND	0x00000010
     93 #define LINUX_SA_NOCLDWAIT	0x00000020
     94 #define LINUX_SA_SIGINFO	0x00000040
     95 
     96 #define LINUX_SA_NOMASK		LINUX_SA_NODEFER
     97 #define LINUX_SA_ONESHOT	LINUX_SA_RESETHAND
     98 #define LINUX_SA_INTERRUPT	0x20000000	/* Ignore this */
     99 
    100 #define LINUX_SA_ALLBITS	0x2000007f
    101 
    102 #define LINUX_SIG_BLOCK		1
    103 #define LINUX_SIG_UNBLOCK	2
    104 #define LINUX_SIG_SETMASK	3
    105 
    106 typedef void	(*linux_handler_t)(int);
    107 
    108 typedef u_long	linux_old_sigset_t;
    109 typedef struct {
    110 	u_long sig[LINUX__NSIG_WORDS];
    111 } linux_sigset_t;
    112 
    113 /* aka osf_sigaction in Linux sources.  Note absence of sa_restorer */
    114 struct linux_old_sigaction {
    115 	linux_handler_t		linux_sa_handler;
    116 	linux_old_sigset_t	linux_sa_mask;
    117 	int			linux_sa_flags;
    118 };
    119 
    120 /* Used in rt_* calls */
    121 struct linux_sigaction {
    122 	linux_handler_t		linux_sa_handler;
    123 	u_long			linux_sa_flags;
    124 	linux_sigset_t		linux_sa_mask;
    125 };
    126 
    127 struct linux_k_sigaction {
    128 	struct linux_sigaction sa;
    129 	void		(*k_sa_restorer)(void);
    130 };
    131 
    132 typedef struct linux_sigaltstack {
    133 	void *ss_sp;
    134 	int ss_flags;
    135 	size_t ss_size;
    136 } linux_stack_t;
    137 
    138 #endif /* !_ALPHA_LINUX_SIGNAL_H */
    139