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      1 /*	$NetBSD: kdbparam.h,v 1.9 2020/07/26 08:08:41 simonb Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * Ralph Campbell.
      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. Neither the name of the University nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  *
     34  *	@(#)kdbparam.h	8.1 (Berkeley) 6/10/93
     35  */
     36 
     37 /*
     38  * Machine dependent definitions for kdb.
     39  */
     40 
     41 #if BYTE_ORDER == LITTLE_ENDIAN
     42 #define	kdbshorten(w)	((w) & 0xFFFF)
     43 #define	kdbbyte(w)	((w) & 0xFF)
     44 #define	kdbitol(a,b)	((long)(((b) << 16) | ((a) & 0xFFFF)))
     45 #define	kdbbtol(a)	((long)(a))
     46 #endif
     47 
     48 #define	LPRMODE		"%R"
     49 #define	OFFMODE		"+%R"
     50 
     51 #define	SETBP(ins)	MIPS_BREAK_BRKPT
     52 
     53 /* return the program counter value modified if we are in a delay slot */
     54 #define	kdbgetpc(pcb)		(kdbvar[kdbvarchk('t')] < 0 ? \
     55 	(pcb).pcb_regs[34] + 4 : (pcb).pcb_regs[34])
     56 #define	kdbishiddenreg(p)	((p) >= &kdbreglist[33])
     57 #define	kdbisbreak(type)	(((type) & MIPS_CR_EXC_CODE) == 0x24)
     58 
     59 /* check for address wrap around */
     60 #define	kdbaddrwrap(addr,newaddr)	(((addr)^(newaddr)) >> 31)
     61 
     62 /* declare machine dependent routines defined in kadb.c */
     63 void	kdbprinttrap(unsigned, unsigned);
     64 void	kdbsetsstep(void);
     65 void	kdbclrsstep(void);
     66 void	kdbreadc(char *);
     67 void	kdbwrite(char *, int);
     68 void	kdbprintins(int, long);
     69 void	kdbstacktrace(int);
     70 char	*kdbmalloc(int);
     71