exec_ecoff.h revision 2632:1bb2f91485ea 
1/*
2 * Taken from NetBSD sys/exec_ecoff.h
3 */
4
5/*	$NetBSD: exec_ecoff.h,v 1.13 2003/01/18 09:53:18 thorpej Exp $	*/
6
7/*
8 * Copyright (c) 1994 Adam Glass
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *      This product includes software developed by Adam Glass.
22 * 4. The name of the author may not be used to endorse or promote products
23 *    derived from this software without specific prior written permission
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
26 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
27 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
28 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
29 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
30 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
34 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 */
36
37#ifndef	_SYS_EXEC_ECOFF_H_
38#define	_SYS_EXEC_ECOFF_H_
39
40//Only alpha will be able to load ecoff files for now
41#include "arch/alpha/ecoff_machdep.h"
42
43struct ecoff_filehdr {
44        coff_ushort f_magic;	/* magic number */
45        coff_ushort f_nscns;	/* # of sections */
46        coff_uint   f_timdat;	/* time and date stamp */
47        coff_ulong  f_symptr;	/* file offset of symbol table */
48        coff_uint   f_nsyms;	/* # of symbol table entries */
49        coff_ushort f_opthdr;	/* sizeof the optional header */
50        coff_ushort f_flags;	/* flags??? */
51};
52
53struct ecoff_aouthdr {
54        coff_ushort magic;
55        coff_ushort vstamp;
56        ECOFF_PAD
57        coff_ulong  tsize;
58        coff_ulong  dsize;
59        coff_ulong  bsize;
60        coff_ulong  entry;
61        coff_ulong  text_start;
62        coff_ulong  data_start;
63        coff_ulong  bss_start;
64        ECOFF_MACHDEP;
65};
66
67struct ecoff_scnhdr {		/* needed for size info */
68        char	s_name[8];	/* name */
69        coff_ulong  s_paddr;	/* physical addr? for ROMing?*/
70        coff_ulong  s_vaddr;	/* virtual addr? */
71        coff_ulong  s_size;		/* size */
72        coff_ulong  s_scnptr;	/* file offset of raw data */
73        coff_ulong  s_relptr;	/* file offset of reloc data */
74        coff_ulong  s_lnnoptr;	/* file offset of line data */
75        coff_ushort s_nreloc;	/* # of relocation entries */
76        coff_ushort s_nlnno;	/* # of line entries */
77        coff_uint   s_flags;	/* flags */
78};
79
80struct ecoff_exechdr {
81        struct ecoff_filehdr f;
82        struct ecoff_aouthdr a;
83};
84
85#define ECOFF_HDR_SIZE (sizeof(struct ecoff_exechdr))
86
87#define ECOFF_OMAGIC 0407
88#define ECOFF_NMAGIC 0410
89#define ECOFF_ZMAGIC 0413
90
91#define ECOFF_ROUND(value, by) \
92        (((value) + (by) - 1) & ~((by) - 1))
93
94#define ECOFF_BLOCK_ALIGN(ep, value) \
95        ((ep)->a.magic == ECOFF_ZMAGIC ? ECOFF_ROUND((value), ECOFF_LDPGSZ) : \
96         (value))
97
98#define ECOFF_TXTOFF(ep) \
99        ((ep)->a.magic == ECOFF_ZMAGIC ? 0 : \
100         ECOFF_ROUND(ECOFF_HDR_SIZE + (ep)->f.f_nscns * \
101                     sizeof(struct ecoff_scnhdr), ECOFF_SEGMENT_ALIGNMENT(ep)))
102
103#define ECOFF_DATOFF(ep) \
104        (ECOFF_BLOCK_ALIGN((ep), ECOFF_TXTOFF(ep) + (ep)->a.tsize))
105
106#define ECOFF_SEGMENT_ALIGN(ep, value) \
107        (ECOFF_ROUND((value), ((ep)->a.magic == ECOFF_ZMAGIC ? ECOFF_LDPGSZ : \
108         ECOFF_SEGMENT_ALIGNMENT(ep))))
109
110#endif /* !_SYS_EXEC_ECOFF_H_ */
111