/*      $NetBSD: linux_signal.h,v 1.6 2024/10/01 16:35:42 riastradh 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 */