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      1 /*	$NetBSD: core.h,v 1.13 2026/01/08 15:39:08 nia Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 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 #ifndef _SYS_CORE_H_
     33 #define _SYS_CORE_H_
     34 
     35 #include <sys/endian.h> /* ntohl(3) */
     36 
     37 #define COREMAGIC	0507
     38 #define CORESEGMAGIC	0510
     39 
     40 /*
     41  * The core structure's c_midmag field (like exec's a_midmag) is a
     42  * network-byteorder encoding of this int
     43  *	FFFFFFmmmmmmmmmmMMMMMMMMMMMMMMMM
     44  * Where `F' is 6 bits of flag (currently unused),
     45  *       `m' is 10 bits of machine-id, and
     46  *       `M' is 16 bits worth of magic number, ie. COREMAGIC.
     47  * The macros below will set/get the needed fields.
     48  */
     49 #define	CORE_GETMAGIC(c)  (  ntohl(((c).c_midmag))        & 0xffff )
     50 #define	CORE_GETMID(c)    ( (ntohl(((c).c_midmag)) >> 16) & 0x03ff )
     51 #define	CORE_GETFLAG(c)   ( (ntohl(((c).c_midmag)) >> 26) & 0x03f  )
     52 #define	CORE_SETMAGIC(c,mag,mid,flag) ( (c).c_midmag = htonl ( \
     53 			( ((flag) & 0x3f)   << 26) | \
     54 			( ((mid)  & 0x03ff) << 16) | \
     55 			( ((mag)  & 0xffff)      ) ) )
     56 
     57 /* Flag definitions */
     58 #define CORE_CPU	1
     59 #define CORE_DATA	2
     60 #define CORE_STACK	4
     61 
     62 #include <sys/aout_mids.h>
     63 
     64 /*
     65  * A core file consists of a header followed by a number of segments.
     66  * Each segment is preceded by a `coreseg' structure giving the
     67  * segment's type, the virtual address where the bits resided in
     68  * process address space and the size of the segment.
     69  *
     70  * The core header specifies the lengths of the core header itself and
     71  * each of the following core segment headers to allow for any machine
     72  * dependent alignment requirements.
     73  */
     74 
     75 struct core {
     76 	uint32_t c_midmag;		/* magic, id, flags */
     77 	uint16_t c_hdrsize;		/* Size of this header (machdep algn) */
     78 	uint16_t c_seghdrsize;		/* Size of a segment header */
     79 	uint32_t c_nseg;		/* # of core segments */
     80 	char	c_name[MAXCOMLEN+1];	/* Copy of p->p_comm */
     81 	uint32_t c_signo;		/* Killing signal */
     82 	u_long	c_ucode;		/* Hmm ? */
     83 	u_long	c_cpusize;		/* Size of machine dependent segment */
     84 	u_long	c_tsize;		/* Size of traditional text segment */
     85 	u_long	c_dsize;		/* Size of traditional data segment */
     86 	u_long	c_ssize;		/* Size of traditional stack segment */
     87 };
     88 
     89 struct coreseg {
     90 	uint32_t c_midmag;		/* magic, id, flags */
     91 	u_long	c_addr;			/* Virtual address of segment */
     92 	u_long	c_size;			/* Size of this segment */
     93 };
     94 
     95 /*
     96  * 32-bit versions of the above.
     97  */
     98 struct core32 {
     99 	uint32_t c_midmag;		/* magic, id, flags */
    100 	uint16_t c_hdrsize;		/* Size of this header (machdep algn) */
    101 	uint16_t c_seghdrsize;		/* Size of a segment header */
    102 	uint32_t c_nseg;		/* # of core segments */
    103 	char	c_name[MAXCOMLEN+1];	/* Copy of p->p_comm */
    104 	uint32_t c_signo;		/* Killing signal */
    105 	u_int	c_ucode;		/* Hmm ? */
    106 	u_int	c_cpusize;		/* Size of machine dependent segment */
    107 	u_int	c_tsize;		/* Size of traditional text segment */
    108 	u_int	c_dsize;		/* Size of traditional data segment */
    109 	u_int	c_ssize;		/* Size of traditional stack segment */
    110 };
    111 
    112 struct coreseg32 {
    113 	uint32_t c_midmag;		/* magic, id, flags */
    114 	u_int	c_addr;			/* Virtual address of segment */
    115 	u_int	c_size;			/* Size of this segment */
    116 };
    117 
    118 #endif /* !_SYS_CORE_H_ */
    119