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      1 /*	$NetBSD: linux_signal.h,v 1.6 2024/10/01 16:35:42 riastradh Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2005 Emmanuel Dreyfus, all rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Emmanuel Dreyfus
     17  * 4. The name of the author may not be used to endorse or promote
     18  *    products derived from this software without specific prior written
     19  *    permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
     22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     23  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #ifndef _AMD64_LINUX_SIGNAL_H
     35 #define _AMD64_LINUX_SIGNAL_H
     36 
     37 #define LINUX_SIGHUP		 1
     38 #define LINUX_SIGINT		 2
     39 #define LINUX_SIGQUIT		 3
     40 #define LINUX_SIGILL		 4
     41 #define LINUX_SIGTRAP		 5
     42 #define LINUX_SIGABRT		 6
     43 #define LINUX_SIGIOT		 6
     44 #define LINUX_SIGBUS		 7
     45 #define LINUX_SIGFPE		 8
     46 #define LINUX_SIGKILL		 9
     47 #define LINUX_SIGUSR1		10
     48 #define LINUX_SIGSEGV		11
     49 #define LINUX_SIGUSR2		12
     50 #define LINUX_SIGPIPE		13
     51 #define LINUX_SIGALRM		14
     52 #define LINUX_SIGTERM		15
     53 #define LINUX_SIGSTKFLT		16
     54 #define LINUX_SIGCHLD		17
     55 #define LINUX_SIGCONT		18
     56 #define LINUX_SIGSTOP		19
     57 #define LINUX_SIGTSTP		20
     58 #define LINUX_SIGTTIN		21
     59 #define LINUX_SIGTTOU		22
     60 #define LINUX_SIGURG		23
     61 #define LINUX_SIGXCPU		24
     62 #define LINUX_SIGXFSZ		25
     63 #define LINUX_SIGVTALRM		26
     64 #define LINUX_SIGPROF		27
     65 #define LINUX_SIGWINCH		28
     66 #define LINUX_SIGIO		29
     67 #define LINUX_SIGPWR		30
     68 #define LINUX_SIGSYS		31
     69 #define LINUX_SIGRTMIN		32
     70 #define LINUX_SIGRTMAX		LINUX__NSIG
     71 
     72 
     73 #define LINUX_SS_ONSTACK	1
     74 #define LINUX_SS_DISABLE	2
     75 
     76 #define LINUX_SA_NOCLDSTOP	0x00000001
     77 #define LINUX_SA_NOCLDWAIT	0x00000002
     78 #define LINUX_SA_SIGINFO	0x00000004
     79 #define LINUX_SA_RESTORER	0x04000000
     80 #define LINUX_SA_ONSTACK	0x08000000
     81 #define LINUX_SA_RESTART	0x10000000
     82 #define LINUX_SA_NOMASK		0x40000000
     83 #define LINUX_SA_ONESHOT	0x80000000
     84 #define LINUX_SA_ALLBITS	0xdc000007
     85 
     86 #define LINUX_SIG_BLOCK		0
     87 #define LINUX_SIG_UNBLOCK	1
     88 #define LINUX_SIG_SETMASK	2
     89 
     90 #define LINUX__NSIG		64
     91 #define LINUX__NSIG_BPW		64
     92 #define LINUX__NSIG_WORDS	(LINUX__NSIG / LINUX__NSIG_BPW)
     93 
     94 #define	LINUX_MINSIGSTKSZ	2048
     95 
     96 typedef unsigned int linux_old_sigset_t;
     97 
     98 typedef struct {
     99 	unsigned long sig[LINUX__NSIG_WORDS];
    100 } linux_sigset_t;
    101 
    102 typedef void (*linux_handler_t)(int);
    103 
    104 /* struct old_sigaction32 in Linux; uses a 32 bit pointer for handlers */
    105 struct linux_compat_old_sigaction {
    106 	linux_handler_t linux_sa_handler;
    107 	linux_old_sigset_t linux_sa_mask;
    108 	unsigned int linux_sa_flags;
    109 	void (*linux_sa_restorer)(void);
    110 };
    111 
    112 /* Dummy declaration to avoid errors, unused */
    113 struct linux_old_sigaction {
    114 	linux_handler_t linux_sa_handler;
    115 	unsigned long linux_sa_flags;
    116 	void (*linux_sa_restorer)(void);
    117 	linux_sigset_t linux_sa_mask;
    118 };
    119 
    120 struct linux_sigaction {
    121 	linux_handler_t linux_sa_handler;
    122 	unsigned long linux_sa_flags;
    123 	void (*linux_sa_restorer)(void);
    124 	linux_sigset_t linux_sa_mask;
    125 };
    126 
    127 typedef struct linux_sigaltstack {
    128 	void *ss_sp;
    129 	int ss_flags;
    130 	size_t ss_size;
    131 } linux_stack_t;
    132 
    133 #endif /* !_AMD64_LINUX_SIGNAL_H */
    134