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      1 /*	$NetBSD: signal.h,v 1.28 2021/10/29 17:29:45 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	@(#)signal.h	7.16 (Berkeley) 3/17/91
     32  */
     33 
     34 #ifndef _M68K_SIGNAL_H_
     35 #define _M68K_SIGNAL_H_
     36 
     37 #include <sys/featuretest.h>
     38 
     39 #define	__HAVE_STRUCT_SIGCONTEXT
     40 
     41 typedef int sig_atomic_t;
     42 
     43 #if defined(_NETBSD_SOURCE)
     44 
     45 /*
     46  * Get the "code" values
     47  */
     48 #include <machine/trap.h>
     49 
     50 /*
     51  * Information pushed on stack when a signal is delivered.
     52  * This is used by the kernel to restore state following
     53  * execution of the signal handler.  It is also made available
     54  * to the handler to allow it to restore state properly if
     55  * a non-standard exit is performed.
     56  */
     57 #if defined(_KERNEL)
     58 struct sigcontext13 {
     59 	int	sc_onstack;		/* sigstack state to restore */
     60 	int	sc_mask;		/* signal mask to restore (old style) */
     61 	int	sc_sp;			/* sp to restore */
     62 	int	sc_fp;			/* fp to restore */
     63 	int	sc_ap;			/* ap to restore */
     64 	int	sc_pc;			/* pc to restore */
     65 	int	sc_ps;			/* psl to restore */
     66 };
     67 #endif /* _KERNEL */
     68 
     69 #if defined(_LIBC) || defined(_KERNEL)
     70 struct sigcontext {
     71 	int	sc_onstack;		/* sigstack state to restore */
     72 	int	__sc_mask13;		/* signal mask to restore (old style) */
     73 	int	sc_sp;			/* sp to restore */
     74 	int	sc_fp;			/* fp to restore */
     75 	int	sc_ap;			/* ap to restore */
     76 	int	sc_pc;			/* pc to restore */
     77 	int	sc_ps;			/* psl to restore */
     78 	sigset_t sc_mask;		/* signal mask to restore (new style) */
     79 };
     80 #endif /* _LIBC || _KERNEL */
     81 
     82 #ifdef _KERNEL
     83 #include <m68k/cpuframe.h>
     84 
     85 /*
     86  * Register state saved while kernel delivers a signal.
     87  */
     88 struct sigstate {
     89 	int	ss_flags;		/* which of the following are valid */
     90 	struct frame ss_frame;		/* original exception frame */
     91 	struct fpframe ss_fpstate;	/* 68881/68882 state info */
     92 };
     93 
     94 #define	SS_RTEFRAME	0x01
     95 #define	SS_FPSTATE	0x02
     96 #define	SS_USERREGS	0x04
     97 
     98 u_int fpsr2siginfocode(u_int fpsr);
     99 
    100 #endif /* _KERNEL */
    101 
    102 #if defined(__M68K_SIGNAL_PRIVATE)
    103 
    104 #ifdef _KERNEL
    105 #define	_SIGSTATE_EXFRAMESIZE(fmt)	exframesize[(fmt)]
    106 #endif
    107 
    108 #endif /* __M68K_SIGNAL_PRIVATE */
    109 
    110 #endif	/* _NETBSD_SOURCE */
    111 #endif	/* !_M68K_SIGNAL_H_ */
    112