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Annotation of sys/sys/core.h, Revision 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: };