NetBSD/sys/arch/m68k/include/signal.h

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/* $NetBSD: signal.h,v 1.8 1998/09/30 21:52:45 thorpej Exp $ */
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/*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
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* @(#)signal.h 7.16 (Berkeley) 3/17/91
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*/
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#ifndef _M68K_SIGNAL_H_
#define _M68K_SIGNAL_H_
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typedef int sig_atomic_t;
#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
!defined(_XOPEN_SOURCE)
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/*
* Get the "code" values
*/
#include <machine/trap.h>
/*
* 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.
*/
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#if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
struct sigcontext13 {
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int sc_onstack; /* sigstack state to restore */
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int sc_mask; /* signal mask to restore (old style) */
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int sc_sp; /* sp to restore */
int sc_fp; /* fp to restore */
int sc_ap; /* ap to restore */
int sc_pc; /* pc to restore */
int sc_ps; /* psl to restore */
};
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#endif /* __LIBC12_SOURCE__ || _KERNEL */
struct sigcontext {
int sc_onstack; /* sigstack state to restore */
int __sc_mask13; /* signal mask to restore (old style) */
int sc_sp; /* sp to restore */
int sc_fp; /* fp to restore */
int sc_ap; /* ap to restore */
int sc_pc; /* pc to restore */
int sc_ps; /* psl to restore */
sigset_t sc_mask; /* signal mask to restore (new style) */
};
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#if defined(_KERNEL) && defined(__M68K_SIGNAL_PRIVATE)
#include <m68k/frame.h>
/*
* Register state saved while kernel delivers a signal.
*/
struct sigstate {
int ss_flags; /* which of the following are valid */
struct frame ss_frame; /* original exception frame */
struct fpframe ss_fpstate; /* 68881/68882 state info */
};
#define SS_RTEFRAME 0x01
#define SS_FPSTATE 0x02
#define SS_USERREGS 0x04
/*
* Stack frame layout when delivering a signal.
*
* WARNING: code in locore.s assumes the layout shown for sf_signum
* thru sf_handler, so... don't screw with them!
*/
struct sigframe {
int sf_signum; /* signal number for handler */
int sf_code; /* additional info for handler */
struct sigcontext *sf_scp; /* context pointer for handler */
sig_t sf_handler; /* handler address for u_sigc */
struct sigstate sf_state; /* state of the hardware */
struct sigcontext sf_sc; /* actual context */
};
#endif /* _KERNEL && __M68K_SIGNAL_PRIVATE */
#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
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#endif /* !_M68K_SIGNAL_H_ */