LCOM1920-T02G10

/*        $NetBSD: signal.h,v 1.29 2008/11/19 18:35:59 ad Exp $        */

/*

 * Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California.

 * 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. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.

 *

 *        @(#)signal.h        7.16 (Berkeley) 3/17/91

 */

#ifndef _I386_SIGNAL_H_

#define _I386_SIGNAL_H_

#include <sys/featuretest.h>

#if defined(__minix) && (defined(_LIBMINC) || ! defined(_STANDALONE))

#include <machine/fpu.h>

#endif /* defined(__minix) ... */

typedef int sig_atomic_t;

#if defined(_NETBSD_SOURCE)

/*

 * Get the "code" values

 */

#include <machine/trap.h>

#if defined(_KERNEL) || defined(__minix)

/*

 * Information pushed on stack when a signal is delivered.

 * This is used by the kernel to restore state following

 * execution of the signal handler.  It is also made available

 * to the handler to allow it to restore state properly if

 * a non-standard exit is performed.

 */

struct sigcontext13 {

        int        sc_gs;

        int        sc_fs;

        int        sc_es;

        int        sc_ds;

        int        sc_edi;

        int        sc_esi;

        int        sc_ebp;

        int        sc_ebx;

        int        sc_edx;

        int        sc_ecx;

        int        sc_eax;

        /* XXX */

        int        sc_eip;

        int        sc_cs;

        int        sc_eflags;

        int        sc_esp;

        int        sc_ss;

        int        sc_onstack;                /* sigstack state to restore */

        int        sc_mask;                /* signal mask to restore (old style) */

        int        sc_trapno;                /* XXX should be above */

        int        sc_err;

};

struct sigcontext {

        int        sc_gs;

        int        sc_fs;

        int        sc_es;

        int        sc_ds;

        int        sc_edi;

        int        sc_esi;

        int        sc_ebp;

        int        sc_ebx;

        int        sc_edx;

        int        sc_ecx;

        int        sc_eax;

        /* XXX */

        int        sc_eip;

        int        sc_cs;

        int        sc_eflags;

        int        sc_esp;

        int        sc_ss;

        int        sc_onstack;                /* sigstack state to restore */

        int        __sc_mask13;                /* signal mask to restore (old style) */

        int        sc_trapno;                /* XXX should be above */

        int        sc_err;

        sigset_t sc_mask;                /* signal mask to restore (new style) */

#if defined(__minix) && (defined(_LIBMINC) || ! defined(_STANDALONE))

        union fpu_state_u sc_fpu_state;

        int trap_style;                /* KTS_* method of entering kernel */

        int sc_flags;                        /* MF_FPU_INITIALIZED if fpu state valid */

#define SC_MAGIC 0xc0ffee1

        int sc_magic;

#endif /* defined(__minix) ... */

};

#endif /* _KERNEL */

#if defined(__minix) && (defined(_LIBMINC) || ! defined(_STANDALONE))

__BEGIN_DECLS

int sigreturn(struct sigcontext *_scp);

__END_DECLS

#endif /* defined(__minix) */

#endif        /* _NETBSD_SOURCE */

#endif        /* !_I386_SIGNAL_H_ */