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signal.h revision 1.2 
      1 /*
      2  * Copyright (c) 1992, 1993
      3  *	The Regents of the University of California.  All rights reserved.
      4  *
      5  * This code is derived from software contributed to Berkeley by
      6  * Ralph Campbell.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by the University of
     19  *	California, Berkeley and its contributors.
     20  * 4. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  *	from: @(#)signal.h	8.1 (Berkeley) 6/10/93
     37  *      $Id: signal.h,v 1.2 1994/05/27 08:41:11 glass Exp $
     38  */
     39 
     40 /*
     41  * Machine-dependent signal definitions
     42  */
     43 
     44 typedef int sig_atomic_t;
     45 
     46 /*
     47  * Information pushed on stack when a signal is delivered.
     48  * This is used by the kernel to restore state following
     49  * execution of the signal handler.  It is also made available
     50  * to the handler to allow it to restore state properly if
     51  * a non-standard exit is performed.
     52  */
     53 struct	sigcontext {
     54 	int	sc_onstack;	/* sigstack state to restore */
     55 	int	sc_mask;	/* signal mask to restore */
     56 	int	sc_pc;		/* pc at time of signal */
     57 	int	sc_regs[34];	/* processor regs 0 to 31, mullo, mullhi */
     58 	int	sc_fpused;	/* fp has been used */
     59 	int	sc_fpregs[33];	/* fp regs 0 to 31 and csr */
     60 	int	sc_fpc_eir;	/* floating point exception instruction reg */
     61 };
     62