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undefined.h revision 1.5 
      1 /*	$NetBSD: undefined.h,v 1.5 2004/08/07 11:45:41 rearnsha Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995-1996 Mark Brinicombe.
      5  * Copyright (c) 1995 Brini.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software written for Brini by Mark Brinicombe
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by Brini.
     21  * 4. The name of the company nor the name of the author may be used to
     22  *    endorse or promote products derived from this software without specific
     23  *    prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
     26  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     27  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     28  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
     29  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     31  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  * RiscBSD kernel project
     38  *
     39  * undefined.h
     40  *
     41  * Undefined instruction types, symbols and prototypes
     42  *
     43  * Created      : 08/02/95
     44  */
     45 
     46 
     47 #ifndef _ARM_UNDEFINED_H_
     48 #define _ARM_UNDEFINED_H_
     49 #ifdef _KERNEL
     50 
     51 #include <sys/queue.h>
     52 
     53 typedef int (*undef_handler_t) __P((unsigned int, unsigned int, trapframe_t *, int));
     54 
     55 #define FP_COPROC	1
     56 #define FP_COPROC2	2
     57 #define MAX_COPROCS	16
     58 
     59 /*
     60  * Not really a co-processor, but used by the undefined instruction handler
     61  * to catch undefined instructions in the core instruction set.
     62  */
     63 #define CORE_UNKOWN_HANDLER	MAX_COPROCS
     64 
     65 /* Prototypes for undefined.c */
     66 
     67 void *install_coproc_handler __P((int, undef_handler_t));
     68 void remove_coproc_handler __P((void *));
     69 void undefined_init __P((void));
     70 
     71 /*
     72  * XXX Stuff below here is for use before malloc() is available.  Most code
     73  * shouldn't use it.
     74  */
     75 
     76 struct undefined_handler {
     77 	LIST_ENTRY(undefined_handler) uh_link;
     78 	undef_handler_t uh_handler;
     79 };
     80 
     81 /*
     82  * Handlers installed using install_coproc_handler_static shouldn't be
     83  * removed.
     84  */
     85 void install_coproc_handler_static __P((int, struct undefined_handler *));
     86 
     87 /* Calls up to undefined.c from trap handlers */
     88 void undefinedinstruction(struct trapframe *);
     89 
     90 #endif
     91 
     92 /* End of undefined.h */
     93 
     94 #endif /* _ARM_UNDEFINED_H_ */
     95