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Annotation of sys/sys/core.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: core.h,v 1.3 2003/10/30 21:38:09 jmc Exp $    */
                      2: /*     $NetBSD: core.h,v 1.4 1994/10/29 08:20:14 cgd Exp $     */
                      3:
                      4: /*
                      5:  * Copyright (c) 1994 Paul Kranenburg
                      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. All advertising materials mentioning features or use of this software
                     17:  *    must display the following acknowledgement:
                     18:  *      This product includes software developed by Paul Kranenburg.
                     19:  * 4. The name of the author may not be used to endorse or promote products
                     20:  *    derived from this software without specific prior written permission
                     21:  *
                     22:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     23:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     24:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     25:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     26:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     27:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     28:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     29:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     30:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     31:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     32:  */
                     33:
                     34: #define COREMAGIC      0507
                     35: #define CORESEGMAGIC   0510
                     36:
                     37: /*
                     38:  * The core structure's c_midmag field (like exec's a_midmag) is a
                     39:  * network-byteorder encoding of this int
                     40:  *     FFFFFFmmmmmmmmmmMMMMMMMMMMMMMMMM
                     41:  * Where `F' is 6 bits of flag (currently unused),
                     42:  *       `m' is 10 bits of machine-id, and
                     43:  *       `M' is 16 bits worth of magic number, ie. COREMAGIC.
                     44:  * The macros below will set/get the needed fields.
                     45:  */
                     46: #define        CORE_GETMAGIC(c)  (  ntohl(((c).c_midmag))        & 0xffff )
                     47: #define        CORE_GETMID(c)    ( (ntohl(((c).c_midmag)) >> 16) & 0x03ff )
                     48: #define        CORE_GETFLAG(c)   ( (ntohl(((c).c_midmag)) >> 26) & 0x03f  )
                     49: #define        CORE_SETMAGIC(c,mag,mid,flag) ( (c).c_midmag = htonl ( \
                     50:                        ( ((flag) & 0x3f)   << 26) | \
                     51:                        ( ((mid)  & 0x03ff) << 16) | \
                     52:                        ( ((mag)  & 0xffff)      ) ) )
                     53:
                     54: /* Flag definitions */
                     55: #define CORE_CPU       1
                     56: #define CORE_DATA      2
                     57: #define CORE_STACK     4
                     58:
                     59: /*
                     60:  * A core file consists of a header followed by a number of segments.
                     61:  * Each segment is preceded by a `coreseg' structure giving the
                     62:  * segment's type, the virtual address where the bits resided in
                     63:  * process address space and the size of the segment.
                     64:  *
                     65:  * The core header specifies the lengths of the core header itself and
                     66:  * each of the following core segment headers to allow for any machine
                     67:  * dependent alignment requirements.
                     68:  */
                     69:
                     70: struct core {
                     71:        u_int32_t c_midmag;             /* magic, id, flags */
                     72:        u_int16_t c_hdrsize;            /* Size of this header (machdep algn) */
                     73:        u_int16_t c_seghdrsize;         /* Size of a segment header */
                     74:        u_int32_t c_nseg;               /* # of core segments */
                     75:        char    c_name[MAXCOMLEN+1];    /* Copy of p->p_comm */
                     76:        u_int32_t c_signo;              /* Killing signal */
                     77:        u_long  c_ucode;                /* Hmm ? */
                     78:        u_long  c_cpusize;              /* Size of machine dependent segment */
                     79:        u_long  c_tsize;                /* Size of traditional text segment */
                     80:        u_long  c_dsize;                /* Size of traditional data segment */
                     81:        u_long  c_ssize;                /* Size of traditional stack segment */
                     82: };
                     83:
                     84: struct coreseg {
                     85:        u_int32_t c_midmag;             /* magic, id, flags */
                     86:        u_long  c_addr;                 /* Virtual address of segment */
                     87:        u_long  c_size;                 /* Size of this segment */
                     88: };