The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/sys/core.h

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    1 /*      $NetBSD: core.h,v 1.9 2001/08/20 12:00:54 wiz 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  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *      This product includes software developed by the NetBSD
   21  *      Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 #ifndef _SYS_CORE_H_
   40 #define _SYS_CORE_H_
   41 
   42 #define COREMAGIC       0507
   43 #define CORESEGMAGIC    0510
   44 
   45 /*
   46  * The core structure's c_midmag field (like exec's a_midmag) is a
   47  * network-byteorder encoding of this int
   48  *      FFFFFFmmmmmmmmmmMMMMMMMMMMMMMMMM
   49  * Where `F' is 6 bits of flag (currently unused),
   50  *       `m' is 10 bits of machine-id, and
   51  *       `M' is 16 bits worth of magic number, ie. COREMAGIC.
   52  * The macros below will set/get the needed fields.
   53  */
   54 #define CORE_GETMAGIC(c)  (  ntohl(((c).c_midmag))        & 0xffff )
   55 #define CORE_GETMID(c)    ( (ntohl(((c).c_midmag)) >> 16) & 0x03ff )
   56 #define CORE_GETFLAG(c)   ( (ntohl(((c).c_midmag)) >> 26) & 0x03f  )
   57 #define CORE_SETMAGIC(c,mag,mid,flag) ( (c).c_midmag = htonl ( \
   58                         ( ((flag) & 0x3f)   << 26) | \
   59                         ( ((mid)  & 0x03ff) << 16) | \
   60                         ( ((mag)  & 0xffff)      ) ) )
   61 
   62 /* Flag definitions */
   63 #define CORE_CPU        1
   64 #define CORE_DATA       2
   65 #define CORE_STACK      4
   66 
   67 /*
   68  * A core file consists of a header followed by a number of segments.
   69  * Each segment is preceded by a `coreseg' structure giving the
   70  * segment's type, the virtual address where the bits resided in
   71  * process address space and the size of the segment.
   72  *
   73  * The core header specifies the lengths of the core header itself and
   74  * each of the following core segment headers to allow for any machine
   75  * dependent alignment requirements.
   76  */
   77 
   78 struct core {
   79         u_int32_t c_midmag;             /* magic, id, flags */
   80         u_int16_t c_hdrsize;            /* Size of this header (machdep algn) */
   81         u_int16_t c_seghdrsize;         /* Size of a segment header */
   82         u_int32_t c_nseg;               /* # of core segments */
   83         char    c_name[MAXCOMLEN+1];    /* Copy of p->p_comm */
   84         u_int32_t c_signo;              /* Killing signal */
   85         u_long  c_ucode;                /* Hmm ? */
   86         u_long  c_cpusize;              /* Size of machine dependent segment */
   87         u_long  c_tsize;                /* Size of traditional text segment */
   88         u_long  c_dsize;                /* Size of traditional data segment */
   89         u_long  c_ssize;                /* Size of traditional stack segment */
   90 };
   91 
   92 struct coreseg {
   93         u_int32_t c_midmag;             /* magic, id, flags */
   94         u_long  c_addr;                 /* Virtual address of segment */
   95         u_long  c_size;                 /* Size of this segment */
   96 };
   97 
   98 /*
   99  * 32-bit versions of the above.
  100  */
  101 struct core32 {
  102         u_int32_t c_midmag;             /* magic, id, flags */
  103         u_int16_t c_hdrsize;            /* Size of this header (machdep algn) */
  104         u_int16_t c_seghdrsize;         /* Size of a segment header */
  105         u_int32_t c_nseg;               /* # of core segments */
  106         char    c_name[MAXCOMLEN+1];    /* Copy of p->p_comm */
  107         u_int32_t c_signo;              /* Killing signal */
  108         u_int   c_ucode;                /* Hmm ? */
  109         u_int   c_cpusize;              /* Size of machine dependent segment */
  110         u_int   c_tsize;                /* Size of traditional text segment */
  111         u_int   c_dsize;                /* Size of traditional data segment */
  112         u_int   c_ssize;                /* Size of traditional stack segment */
  113 };
  114 
  115 struct coreseg32 {
  116         u_int32_t c_midmag;             /* magic, id, flags */
  117         u_int   c_addr;                 /* Virtual address of segment */
  118         u_int   c_size;                 /* Size of this segment */
  119 };
  120 
  121 #endif /* !_SYS_CORE_H_ */

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