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      1 /*	$NetBSD: linux_signal.h,v 1.1 2021/09/23 06:56:27 ryo Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2021 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _AARCH64_LINUX_SIGNAL_H
     30 #define _AARCH64_LINUX_SIGNAL_H
     31 
     32 #define LINUX_SIGHUP		1
     33 #define LINUX_SIGINT		2
     34 #define LINUX_SIGQUIT		3
     35 #define LINUX_SIGILL		4
     36 #define LINUX_SIGTRAP		5
     37 #define LINUX_SIGABRT		6
     38 #define LINUX_SIGIOT		6
     39 #define LINUX_SIGBUS		7
     40 #define LINUX_SIGFPE		8
     41 #define LINUX_SIGKILL		9
     42 #define LINUX_SIGUSR1		10
     43 #define LINUX_SIGSEGV		11
     44 #define LINUX_SIGUSR2		12
     45 #define LINUX_SIGPIPE		13
     46 #define LINUX_SIGALRM		14
     47 #define LINUX_SIGTERM		15
     48 #define LINUX_SIGSTKFLT		16
     49 #define LINUX_SIGCHLD		17
     50 #define LINUX_SIGCONT		18
     51 #define LINUX_SIGSTOP		19
     52 #define LINUX_SIGTSTP		20
     53 #define LINUX_SIGTTIN		21
     54 #define LINUX_SIGTTOU		22
     55 #define LINUX_SIGURG		23
     56 #define LINUX_SIGXCPU		24
     57 #define LINUX_SIGXFSZ		25
     58 #define LINUX_SIGVTALRM		26
     59 #define LINUX_SIGPROF		27
     60 #define LINUX_SIGWINCH		28
     61 #define LINUX_SIGIO		29
     62 #define LINUX_SIGPWR		30
     63 #define LINUX_SIGSYS		31
     64 /* SIGCANCEL=32, SIGSETXID=33 */
     65 #define LINUX_SIGRTMIN		34
     66 #define LINUX_SIGRTMAX		64
     67 
     68 
     69 #define LINUX_SS_ONSTACK	1
     70 #define LINUX_SS_DISABLE	2
     71 
     72 #define LINUX_SA_NOCLDSTOP	0x00000001
     73 #define LINUX_SA_NOCLDWAIT	0x00000002
     74 #define LINUX_SA_SIGINFO	0x00000004
     75 #define LINUX_SA_ONSTACK	0x08000000
     76 #define LINUX_SA_RESTART	0x10000000
     77 #define LINUX_SA_NOMASK		0x40000000
     78 #define LINUX_SA_ONESHOT	0x80000000
     79 #define LINUX_SA_ALLBITS	0xd8000007
     80 
     81 
     82 #define LINUX_SIG_BLOCK		0
     83 #define LINUX_SIG_UNBLOCK	1
     84 #define LINUX_SIG_SETMASK	2
     85 
     86 #define LINUX__NSIG		(LINUX_SIGRTMAX + 1)
     87 #define LINUX__NSIG_BPW		64
     88 #define LINUX__NSIG_WORDS	(LINUX__NSIG / LINUX__NSIG_BPW)
     89 
     90 #define	LINUX_MINSIGSTKSZ	2048
     91 
     92 typedef struct {
     93 	unsigned long sig[LINUX__NSIG_WORDS];
     94 } linux_sigset_t;
     95 
     96 typedef void (*linux_handler_t)(int);
     97 
     98 struct linux_sigaction {
     99 	linux_handler_t linux_sa_handler;
    100 	unsigned long linux_sa_flags;
    101 
    102 	/*
    103 	 * linux/arm64 doesn't use sa_restorer,
    104 	 * but struct sigaction has it for compatibility.
    105 	 */
    106 	void (*linux_sa_restorer)(void);
    107 
    108 	linux_sigset_t linux_sa_mask;
    109 };
    110 
    111 typedef struct linux_sigaltstack {
    112 	void *ss_sp;
    113 	int ss_flags;
    114 	size_t ss_size;
    115 } linux_stack_t;
    116 
    117 #endif /* !_AARCH64_LINUX_SIGNAL_H */
    118