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      1 /*	$NetBSD: kcore.h,v 1.4 2008/04/28 20:23:36 martin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Paul Kranenburg.
      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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*
     33  * The layout of a kernel core on the dump device is as follows:
     34  *	a `struct kcore_seg' of type CORE_CPU
     35  *	a `struct cpu_kcore_hdr'
     36  *	an array of `cpu_kcore_hdr.nmemseg' phys_ram_seg_t's
     37  *	an array of `cpu_kcore_hdr.nsegmap' segmap structures
     38  *	an array of `cpu_kcore_hdr.npmegs' PTEs (zero of these on sun4ms).
     39  */
     40 
     41 typedef struct cpu_kcore_hdr {
     42 	int	cputype;		/* CPU type associated with this dump */
     43 	u_long	kernbase;		/* copy of KERNBASE goes here */
     44 	int	nmemseg;		/* # of physical memory segments */
     45 	u_long	memsegoffset;		/* start of memseg array (relative */
     46 					/*  to the start of this header) */
     47 	int	nsegmap;		/* # of segmaps following */
     48 	u_long	segmapoffset;		/* start of segmap array (relative */
     49 					/*  to the start of this header) */
     50 	int	npmeg;			/* # of PMEGs; [sun4/sun4c] only */
     51 	u_long	pmegoffset;		/* start of pmeg array (relative */
     52 					/*  to the start of this header) */
     53 } cpu_kcore_hdr_t;
     54