xref: /src/sys/compat/linux/arch/amd64/linux_signal.h

/*	$NetBSD: linux_signal.h,v 1.5.54.1 2025/08/02 05:56:22 perseant Exp $ */

/*-
 * Copyright (c) 2005 Emmanuel Dreyfus, all rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Emmanuel Dreyfus
 * 4. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _AMD64_LINUX_SIGNAL_H
#define _AMD64_LINUX_SIGNAL_H

#define LINUX_SIGHUP		 1
#define LINUX_SIGINT		 2
#define LINUX_SIGQUIT		 3
#define LINUX_SIGILL		 4
#define LINUX_SIGTRAP		 5
#define LINUX_SIGABRT		 6
#define LINUX_SIGIOT		 6
#define LINUX_SIGBUS		 7
#define LINUX_SIGFPE		 8
#define LINUX_SIGKILL		 9
#define LINUX_SIGUSR1		10
#define LINUX_SIGSEGV		11
#define LINUX_SIGUSR2		12
#define LINUX_SIGPIPE		13
#define LINUX_SIGALRM		14
#define LINUX_SIGTERM		15
#define LINUX_SIGSTKFLT		16
#define LINUX_SIGCHLD		17
#define LINUX_SIGCONT		18
#define LINUX_SIGSTOP		19
#define LINUX_SIGTSTP		20
#define LINUX_SIGTTIN		21
#define LINUX_SIGTTOU		22
#define LINUX_SIGURG		23
#define LINUX_SIGXCPU		24
#define LINUX_SIGXFSZ		25
#define LINUX_SIGVTALRM		26
#define LINUX_SIGPROF		27
#define LINUX_SIGWINCH		28
#define LINUX_SIGIO		29
#define LINUX_SIGPWR		30
#define LINUX_SIGSYS		31
#define LINUX_SIGRTMIN		32
#define LINUX_SIGRTMAX		LINUX__NSIG


#define LINUX_SS_ONSTACK	1
#define LINUX_SS_DISABLE	2

#define LINUX_SA_NOCLDSTOP	0x00000001
#define LINUX_SA_NOCLDWAIT	0x00000002
#define LINUX_SA_SIGINFO	0x00000004
#define LINUX_SA_RESTORER	0x04000000
#define LINUX_SA_ONSTACK	0x08000000
#define LINUX_SA_RESTART	0x10000000
#define LINUX_SA_NOMASK		0x40000000
#define LINUX_SA_ONESHOT	0x80000000
#define LINUX_SA_ALLBITS	0xdc000007

#define LINUX_SIG_BLOCK		0
#define LINUX_SIG_UNBLOCK	1
#define LINUX_SIG_SETMASK	2

#define LINUX__NSIG		64
#define LINUX__NSIG_BPW		64
#define LINUX__NSIG_WORDS	(LINUX__NSIG / LINUX__NSIG_BPW)

#define	LINUX_MINSIGSTKSZ	2048

typedef unsigned int linux_old_sigset_t;

typedef struct {
	unsigned long sig[LINUX__NSIG_WORDS];
} linux_sigset_t;

typedef void (*linux_handler_t)(int);

/* struct old_sigaction32 in Linux; uses a 32 bit pointer for handlers */
struct linux_compat_old_sigaction {
	linux_handler_t linux_sa_handler;
	linux_old_sigset_t linux_sa_mask;
	unsigned int linux_sa_flags;
	void (*linux_sa_restorer)(void);
};

/* Dummy declaration to avoid errors, unused */
struct linux_old_sigaction {
	linux_handler_t linux_sa_handler;
	unsigned long linux_sa_flags;
	void (*linux_sa_restorer)(void);
	linux_sigset_t linux_sa_mask;
};

struct linux_sigaction {
	linux_handler_t linux_sa_handler;
	unsigned long linux_sa_flags;
	void (*linux_sa_restorer)(void);
	linux_sigset_t linux_sa_mask;
};

typedef struct linux_sigaltstack {
	void *ss_sp;
	int ss_flags;
	size_t ss_size;
} linux_stack_t;

#endif /* !_AMD64_LINUX_SIGNAL_H */