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 };