xref: /netbsd/sys/arch/mips/include/kdbparam.h (revision 6550d01e)
1 /*	$NetBSD: kdbparam.h,v 1.8 2005/12/11 12:18:09 christos 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